阅读说明：本技术 一种电梯导轨安装精度检测装置和方法 (Elevator guide rail installation precision detection device and method ) 是由 邓涛 于 2021-09-30 设计创作，主要内容包括：本发明涉及一种电梯导轨安装精度检测装置,包括两根基准样线、两个检测支架及驱动组件,两根所述基准样线分别设置在两组导轨的一侧,所述基准样线为铅垂线。两个检测支架设置分别与两组导轨滑动连接,检测支架上设有检测组件,检测组件包括用于检测导轨各个工作面以及基准样线对应距离数据的第一位移传感器、第二位移传感器、第三位移传感器、第四位移传感器及第五位移传感器。驱动组件用于驱动检测支架在导轨上运动。本装置结构简单、测量精确度高、测量效率高。本发明还涉及一种电梯导轨安装精度检测方法。(The invention relates to an elevator guide rail installation accuracy detection device which comprises two reference sample lines, two detection supports and a driving assembly, wherein the two reference sample lines are respectively arranged on one side of two groups of guide rails, and the reference sample lines are plumb lines. The two detection supports are respectively connected with the two groups of guide rails in a sliding mode, detection assemblies are arranged on the detection supports and comprise first displacement sensors, second displacement sensors, third displacement sensors, fourth displacement sensors and fifth displacement sensors, and the first displacement sensors, the second displacement sensors, the third displacement sensors, the fourth displacement sensors and the fifth displacement sensors are used for detecting corresponding distance data of all working faces and reference sample lines of the guide rails. The driving assembly is used for driving the detection bracket to move on the guide rail. The device has the advantages of simple structure, high measurement accuracy and high measurement efficiency. The invention also relates to a method for detecting the installation accuracy of the elevator guide rail.)

1. An elevator guide rail (200) installation accuracy detection device, comprising:

the two reference sample lines (100) are respectively arranged on one side of the two groups of guide rails (200), and the reference sample lines (100) are plumb lines;

the detection device comprises two detection brackets (300), wherein the two detection brackets (300) are respectively connected with two groups of guide rails (200) in a sliding manner, detection components are arranged on the detection brackets (300), and each detection component comprises a first displacement sensor (310), a second displacement sensor (320), a third displacement sensor (330), a fourth displacement sensor (340) and a fifth displacement sensor (350); a direction perpendicular to a side surface of the guide rail (200) is preset as a first direction, a direction perpendicular to a top surface of the guide rail (200) is preset as a second direction, the first displacement sensor (310) is used for measuring a first direction distance between one side surface of the guide rail (200) and the top surface of the guide rail, the second displacement sensor (320) is used for measuring a first direction distance between the other side surface of the guide rail (200) and the top surface of the guide rail (200), the third displacement sensor (330) is used for measuring a second direction distance between the top surface of the guide rail (200), the fourth displacement sensor (340) is used for measuring a first direction distance between the reference sample line (100) and the reference sample line, and the fifth displacement sensor (350) is used for measuring a second direction distance between the reference sample line (100) and the reference sample line;

a driving assembly (400) for driving the detection bracket (300) to move on the guide rail (200).

2. The elevator guide rail (200) installation accuracy detection device of claim 1, wherein the drive assembly (400) comprises an elevator car (410), and the detection bracket (300) is fixed on a top surface of the elevator car (410).

3. The elevator guide rail (200) installation accuracy detecting device of claim 2, wherein the driving assembly (400) further comprises a connecting member by which the detecting bracket (300) is fixed on the top surface of the elevator car (410).

4. The elevator guide rail (200) installation accuracy detection device of claim 3, wherein the connecting member is configured to be a magnetic attraction member (420), the top surface of the elevator car (410) is provided with a magnetic attraction member (420) for magnetically attracting a first magnetic attraction portion, and the detection bracket (300) is provided with a magnetic attraction member (420) for magnetically attracting a second magnetic attraction portion.

5. The installation accuracy detection device of the elevator guide rail (200) according to claim 3, characterized in that the elevator car (410) is provided with a first roller (411) used for being in sliding connection with the guide rail (200), and the rim of the first roller (411) is abutted with the side surface of the guide rail (200); be equipped with reflection light band (413) on axostylus axostyle (412) of first gyro wheel (411), the detection subassembly still includes towards photoelectric velocimeter (360) that reflection light band (413) set up.

6. The elevator guide rail (200) installation accuracy detection device of claim 3, wherein the elevator car (410) is further provided with a second roller (414), and a rim of the second roller (414) abuts against the top surface of the guide rail (200).

7. The elevator guide rail (200) installation accuracy detection device of claim 1, wherein the detection assembly is movably disposed on the detection bracket (300).

8. The device for detecting the installation accuracy of the guide rail (200) of the elevator as recited in claim 7, wherein the detecting bracket (300) is provided with an adjusting chute (370), and the detecting component is slidably arranged in the adjusting chute (370).

9. The elevator guide rail (200) installation accuracy detection device of claim 1, wherein the first displacement sensor (310), the second displacement sensor (320) and the third displacement sensor (330) are arranged at a distance of 10mm-100mm from the corresponding surface to be measured of the guide rail (200); the distances between the fourth displacement sensor (340) and the fifth displacement sensor and the corresponding reference sample line (100) are set to be between 10mm and 100 mm.

10. A method for detecting the installation accuracy of an elevator guide rail (200), comprising the device for detecting the installation accuracy of an elevator guide rail (200) according to any one of claims 1 to 9, further comprising the steps of:

arranging the reference patterns (100) on one side of the two sets of guide rails (200), respectively, such that the reference patterns (100) are vertically downward;

slidably coupling the detection bracket (300) with the guide rail (200) and allowing the detection bracket (300) to slide relative to the guide rail (200) under the driving of the driving assembly (400);

aligning the first displacement sensor (310) to one side of one of the sets of guide rails (200) in a first direction and measuring the distance between one side of the guide rail (200) and the first displacement sensor (310) in the first direction, recorded as L_a1；

Aligning the fourth displacement sensor (340) to the reference sample line (100) arranged on one side corresponding to the guide rail (200) along a first direction, and measuring the distance between the reference sample line (100) and the fourth displacement sensor (340) in the first direction, wherein the distance is recorded as L_b1Recording a horizontal distance between the first displacement sensor (310) and the fourth displacement sensor (340) as a constant K;

measuring by the first displacement sensor (310) and the fourth displacement sensor (340)The distance between one side surface of the guide rail (200) and the first direction corresponding to the reference sample line (100) is calculated as L_X1Continuously detecting to obtain continuous sampling data L_X1......L_Xn：

L_X1＝L_a1+L_b1+K

......

L_Xn＝L_an+L_bn+K

Comparing the adjacent sampling data to obtain the verticality deviation value L of one side surface of one group of guide rails (200)_△X1......L_△Xn：

L_△X1＝L_X1-L_X2＝(L_a1+L_b1+K)-(L_a2+L_b2+K)＝(L_a1+L_b1)-(L_a2+L_b2)

......

L_△Xn＝(L_an+L_bn)-(L_a(n+1)+L_b(n+1))

Comparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified defective points if the deviation value exceeds the standard allowable value, and identifying the defective points according to data detected by the position at the moment for operators;

similarly, the distance L between one side surface of another group of guide rails (200) and the first direction corresponding to the reference sample line (100) is recorded_x1The verticality deviation value of one side surface of the other group of guide rails (200) is L_△x1......L_△xnComparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified defective points if the deviation value exceeds the standard allowable value, and identifying the defective points according to data detected by the position at the moment for operators;

aligning the second displacement sensor (320) with the other side of one of the sets of rails (200) in a first direction and determining the other side of one of the sets of rails (200) with the first displacement sensor (320)Upward distance, recorded as L_c1-recording a constant G distance in a first direction between the second displacement sensor (320) and the fourth displacement sensor (340);

calculating the distance L between the other side surface of one group of the guide rails (200) and the reference sample line (100) in the first direction through the data measured by the second displacement sensor (320) and the fourth displacement sensor (340)_Y1Continuously detecting to obtain continuous sampling data L_Y1......L_Yn：

L_Y1＝L_b1+G-L_c1

......

L_Yn＝L_bn+G-L_cn

Comparing the adjacent sampling data to obtain the verticality deviation value L of the other side surface of one group of guide rails (200)_ΔY1......L_ΔYn：

L_△Y1＝L_Y1-L_Y2＝(L_b1+G-L_c1)-(L_b2+G-L_c2)＝(L_b1-L_c1)-(L_b2-L_c2)

......

L_△Yn＝(L_bn-L_cn)-(L_b(n+1)-L_c(n+1))

Comparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified defective points if the deviation value exceeds the standard allowable value, and identifying the defective points according to data detected by the position at the moment for operators;

similarly, the distance L between the other side surface of the other group of guide rails (200) and the first direction corresponding to the reference sample line (100) is recorded_y1The verticality deviation value of the other side surface of the other group of guide rails (200) is L_△y1......L_△ynComparing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value as qualified if the deviation value does not exceed the standard allowable value, judging the deviation value as unqualified defect if the deviation value exceeds the standard allowable value, and detecting data according to the position at the momentFor the operator to identify the flaw point;

aligning the third displacement sensor (330) with the top surface of one of the sets of rails (200) in a second direction and determining the distance between the top surface of the rail (200) and the third displacement sensor (330) in the second direction, recorded as L_d1(ii) a Aligning the fifth displacement sensor (350) to the reference sample line (100) arranged on one side corresponding to the guide rail (200) along a second direction, and measuring the distance between the reference sample line (100) and the fifth displacement sensor (350) in the second direction, and recording the distance as L_e1Adding the two to obtain the verticality sampling data L of one group of the top surfaces of the guide rails (200) at a certain time_Z1Continuously detecting to obtain continuous sampling data L_Z1......L_Zn：

L_Z1＝L_d1+L_e1

......

L_Zn＝L_dn-L_en

Comparing the adjacent sampling data to obtain the verticality deviation value L of the top surface of one group of guide rails (200)_△Z1......L_△Zn：

L_△Z1＝L_Z1-L_Z2＝(L_d1+L_e1)-(L_d2+L_e2)

......

L_△Zn＝(L_dn+L_en)-(L_d(n+1)+L_e(n+1))

Comparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified defective points if the deviation value exceeds the standard allowable value, and identifying the defective points according to data detected by the position at the moment for operators;

similarly, recording the verticality sampling data L of the top surface of another group of guide rails (200)_z1The verticality deviation value of one side surface of the other group of guide rails (200) is L_△z1......L_△znComparing the fluctuation range of the deviation value with a standard allowable value for analysis, and if the fluctuation range of the deviation value does not exceed the standard allowable value, judging that the deviation value exceeds the standard allowable valueIf the current position exceeds the standard allowable value, determining the current position as an unqualified flaw point, and identifying the flaw point by an operator according to the data detected by the position at the moment;

calculating the distance data between one side surface of the two groups of guide rails (200) and the corresponding reference sample line (100) to obtain the deviation value of the distance between the working surface on the same side of the two groups of guide rails (200) and the corresponding reference sample line (100), namely the deviation value of the direction degree of the guide rails (200), and recording the deviation value as L_△O1......L_△On：

L_△O1＝L_X1-L_x1

......

L_△On＝L_Xn-L_xn

Comparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified defective points if the deviation value exceeds the standard allowable value, and identifying the defective points according to data detected by the position at the moment for operators;

similarly, the deviation value of the subtend degree between the other side surfaces of the two groups of guide rails (200) is calculated to be L_△P1......L_△PnThe deviation value of the subtend degree between the top surfaces of the two groups of guide rails (200) is L_△Q1......L_△QnComparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified defective points if the deviation value exceeds the standard allowable value, and identifying the defective points according to data detected by the position at the moment for operators;

recording the distance L between the top surface of another group of guide rails (200) and the second direction corresponding to the third displacement sensor, which is measured by the third displacement sensor (330) for detecting another group of guide rails (200)_f1Recording the distance between the third displacement sensors (330) of the two groups of guide rails (200) in the second direction as a constant H, and calculating the distance between the top surfaces of the two groups of guide rails (200) at a certain moment in the second direction, namely the track pitch of the two groups of guide rails (200), and recording the distance as L_R1Continuous detection to obtain continuous samplingSample data L_R1......L_Rn：

L_R1＝L_d1+L_f1+H

......

L_Rn＝L_dn+L_fn+H

Comparing the adjacent sampling data to obtain the gauge deviation value L of the two groups of guide rails (200)_△R1......L_△Rn：

L_△R1＝L_R1-L_R2＝(L_d1+L_f1+H)-(L_d2+L_f2+H)＝(L_d1+L_f1)-(L_d2+L_f2)

......

L_ΔRn＝(L_dn+L_fn)-(L_d(n+1)+L_f(n+1))

And comparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified flaw point if the deviation value exceeds the standard allowable value, and identifying the flaw point by an operator according to the data detected by the position at the moment.

Technical Field

The invention relates to the technical field of elevator equipment, in particular to a device and a method for detecting the installation precision of an elevator guide rail.

Background

For the judgment of the results of elevator installation and debugging work, the operation vibration performance of the elevator car is a core index, and the installation precision of the guide rail is one of key influencing factors, so that the precision detection of the elevator guide rail in the installation and debugging process is needed. In the vertical installation of guide rails in a hoistway and the debugging process of elevator performance, the installation precision of two corresponding sets of guide rails needs to be detected, and detection indexes mainly include guide rail perpendicularity, subtend degree and gauge. Perpendicularity refers to the linearity of the working face of the same group of guide rails in the same direction and the parallelism of the guide rails relative to a plumb sampling line. The subtend degree refers to the parallelism of the working surfaces on the same side of the two groups of guide rails and the coincidence degree of the axes of the corresponding top surfaces. The gauge refers to the distance between the two groups of guide rails and the corresponding top surfaces.

In a conventional detection operation, a field operator usually uses a rigid ruler to select points to measure the distance between the working surface of the guide rail and a vertical sample line, and records data of each measuring point and compares the data with a standard value. And judging whether the verticality and the subtend degree of the guide rail are qualified or not according to whether the data of each measuring point meet the allowable error standard or not. And selecting points by using a rail correcting ruler to measure the distance between the corresponding top surfaces of the two groups of guide rails, recording data of each measuring point, comparing the data with a standard value, and judging whether the guide rail distance is qualified according to whether the data of each measuring point meets the allowable error standard. The detection mode is mainly made manually by operators, and data are read by human eyes, so that errors are easy to occur, and the measurement precision is low. And the measurement of a plurality of data on the whole guide rail is accomplished through the operation personnel, and working strength is big, and measurement efficiency is low.

Disclosure of Invention

Therefore, it is necessary to provide an elevator guide rail installation accuracy detection device with a simple structure, high measurement accuracy and high measurement efficiency, aiming at the problems of low measurement accuracy and low measurement efficiency of elevator guide rail installation accuracy in the traditional operation. In addition, an elevator guide rail installation accuracy detection method using the device for measurement operation is also provided.

The technical scheme is as follows:

in one aspect, an elevator guide rail installation accuracy detection device is provided, including:

the two reference sample lines are respectively arranged on one side of the two groups of guide rails, and the reference sample lines are plumb lines;

the detection device comprises two detection brackets, a first guide rail and a second guide rail, wherein the two detection brackets are respectively connected with the two groups of guide rails in a sliding manner, and each detection bracket is provided with a detection assembly which comprises a first displacement sensor, a second displacement sensor, a third displacement sensor, a fourth displacement sensor and a fifth displacement sensor; the direction perpendicular to the side surface of the guide rail is preset as a first direction, the direction perpendicular to the top surface of the guide rail is preset as a second direction, the first displacement sensor is used for measuring the first direction distance between one side surface of the guide rail and the top surface of the guide rail, the second displacement sensor is used for measuring the first direction distance between the other side surface of the guide rail and the top surface of the guide rail, the third displacement sensor is used for measuring the second direction distance between the top surface of the guide rail and the top surface of the guide rail, the fourth displacement sensor is used for measuring the first direction distance between the reference sample line and the reference sample line, and the fifth displacement sensor is used for measuring the second direction distance between the reference sample line and the reference sample line;

and the driving assembly is used for driving the detection bracket to move on the guide rail.

The technical solution is further explained below:

in one embodiment, the drive assembly includes an elevator car, and the detection bracket is secured to a top surface of the elevator car.

In one embodiment, the drive assembly further comprises a connector by which the detection bracket is fixed on the top surface of the elevator car.

In one embodiment, the connecting piece is set as a magnetic attraction piece, the top surface of the elevator car is provided with a magnetic attraction piece for attracting a first magnetic attraction part matched with the magnetic attraction piece, and the detection support is provided with a magnetic attraction piece for attracting a second magnetic attraction part matched with the magnetic attraction piece.

In one embodiment, the elevator car is provided with a first roller wheel used for being connected with the guide rail in a sliding mode, and a flange of the first roller wheel is abutted against the side face of the guide rail; the shaft lever on be equipped with the reflection light band, the detection subassembly still includes towards the photoelectricity speedometer that the reflection light band set up.

In one of the embodiments, the elevator car is further provided with a second roller, a rim of which abuts a top surface of the guide rail.

In one embodiment, the detection assembly is movably arranged on the detection bracket.

In one embodiment, an adjusting sliding groove is formed in the detection bracket, and the detection assembly is slidably arranged in the adjusting sliding groove.

In one embodiment, the distances between the first displacement sensor, the second displacement sensor and the third displacement sensor and the corresponding surface to be measured of the guide rail are set to be between 10mm and 100 mm; the distances between the fourth displacement sensor and the fifth displacement sensor and the corresponding reference sample lines are set to be between 10mm and 100 mm.

On the other hand, the elevator guide rail installation accuracy detection method is further provided, and the elevator guide rail installation accuracy detection device is characterized by comprising the following steps:

respectively arranging the reference sample lines on one side of the two groups of guide rails to enable the reference sample lines to be vertically downward;

the detection bracket is connected with the guide rail in a sliding mode, and the detection bracket can slide relative to the guide rail under the driving of the driving assembly;

aligning the first displacement sensor to one side surface of one group of the guide rails along a first direction, and measuring the distance between one side surface of the guide rail and the first displacement sensor along the first direction and recording the distance as L_a1；

Aligning the fourth displacement sensor to the reference sample line arranged on one side corresponding to the guide rail along the first direction, measuring the distance between the reference sample line and the fourth displacement sensor in the first direction, and recording the distance as L_b1Recording that the horizontal distance between the first displacement sensor and the fourth displacement sensor is a constant K;

calculating the distance L between one side surface of the guide rail and the first direction corresponding to the reference sample line according to the data measured by the first displacement sensor and the fourth displacement sensor_X1Continuously detecting to obtain continuous sampling data L_X1......L_Xn：

L_X1＝L_a1+L_b1+K

......

L_Xn＝L_an+L_bn+K

Comparing the number of samples adjacent to each otherAccording to the method, a side face verticality deviation value L of one group of guide rails is obtained_△X1......L_△Xn：

L_△X1＝L_X1-L_X2＝(L_a1+L_b1+K)-(L_a2+L_b2+K)＝(L_a1+L_b1)-(L_a2+L_b2)

......

L_△Xn＝(L_an+L_bn)-(L_a(n+1)+L_b(n+1))

Comparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified defective points if the deviation value exceeds the standard allowable value, and identifying the defective points according to data detected by the position at the moment for operators;

similarly, the distance L between one side surface of the other group of guide rails and the first direction corresponding to the reference sample line is recorded_x1The verticality deviation value of one side surface of the other set of guide rails is L_△x1......L_△xnComparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified defective points if the deviation value exceeds the standard allowable value, and identifying the defective points according to data detected by the position at the moment for operators;

aligning the second displacement sensor with the other side surface of one of the guide rails along the first direction, and measuring the distance between the other side surface of one of the guide rails and the second displacement sensor along the first direction, and recording the distance as L_c1Recording a distance in a first direction between the second displacement sensor and the fourth displacement sensor as a constant G;

calculating the distance L between the other side surface of one group of guide rails and the reference sample line in the first direction through the data measured by the second displacement sensor and the fourth displacement sensor_Y1Continuously detecting to obtain continuous sampling data L_Y1......L_Yn：

L_Y1＝L_b1+G-L_c1

......

L_Yn＝L_bn+G-L_cn

Comparing the adjacent sampling data to obtain the verticality deviation value L of the other side surface of one group of guide rails_ΔY1......L_△Yn：

L_△Y1＝L_Y1-L_Y2＝(L_b1+G-L_c1)-(L_b2+G-L_c2)＝(L_b1-L_c1)-(L_b2-L_c2)

......

L_ΔYn＝(L_bn-L_cn)-(L_b(n+1)-L_c(n+1))

Comparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified defective points if the deviation value exceeds the standard allowable value, and identifying the defective points according to data detected by the position at the moment for operators;

similarly, the distance L between the other side surface of the other group of guide rails and the first direction corresponding to the reference sample line is recorded_y1The verticality deviation value of the other side surface of the other group of guide rails is L_△y1......L_△ynComparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified defective points if the deviation value exceeds the standard allowable value, and identifying the defective points according to data detected by the position at the moment for operators;

aligning the third displacement sensor to the top surface of one of the guide rails along the second direction, and measuring the distance between the top surface of the guide rail and the third displacement sensor along the second direction, and recording the distance as L_d1(ii) a Aligning the fifth displacement sensor to the reference sample line arranged on one side corresponding to the guide rail along the second direction, measuring the distance between the reference sample line and the fifth displacement sensor in the second direction, and recording the distance as L_e1The two are added to obtain a time pointVerticality sampling data L of top surface of guide rail set_Z1Continuously detecting to obtain continuous sampling data L_Z1......L_Zn：

L_Z1＝L_d1+L_e1

......

L_Zn＝L_dn-L_en

Comparing the adjacent sampling data to obtain the top surface verticality deviation value L of one group of guide rails_△Z1......L_△Zn：

L_ΔZ1＝L_Z1-L_Z2＝(L_d1+L_e1)-(L_d2+L_e2)

......

L_ΔZn＝(L_dn+L_en)-(L_d(n+1)+L_e(n+1))

Comparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified defective points if the deviation value exceeds the standard allowable value, and identifying the defective points according to data detected by the position at the moment for operators;

and similarly, recording the verticality sampling data L of the top surface of the other group of guide rails_z1The verticality deviation value of one side surface of the other set of guide rails is L_△z1......L_△znComparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified defective points if the deviation value exceeds the standard allowable value, and identifying the defective points according to data detected by the position at the moment for operators;

calculating the distance data between one side surface of the two groups of guide rails and the corresponding reference sample line to obtain the deviation value of the distance between the working surface of the same side of the two groups of guide rails and the corresponding reference sample line, namely the deviation value of the subtend degree of the guide rails, and recording the deviation value as L_△O1......L_△On：

L_△O1＝L_X1-L_x1

......

L_△On＝L_Xn-L_xn

Comparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified defective points if the deviation value exceeds the standard allowable value, and identifying the defective points according to data detected by the position at the moment for operators;

and similarly, calculating to obtain an opposite degree deviation value L between the other side surfaces of the two groups of guide rails_△P1......L_△PnThe deviation value of the opposite direction degree between the top surfaces of the two groups of guide rails is L_△Q1......L_△QnComparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified defective points if the deviation value exceeds the standard allowable value, and identifying the defective points according to data detected by the position at the moment for operators;

recording a distance L between the top surface of the other guide rail set measured by the third displacement sensor for detecting the other guide rail set and the second direction corresponding to the third displacement sensor_f1Recording the distance between the third displacement sensors of the two groups of guide rails in the second direction as a constant H, and calculating the distance between the top surfaces of the two groups of guide rails in the second direction at a certain moment, namely the track pitch of the two groups of guide rails, and recording the distance as L_R1Continuously detecting to obtain continuous sampling data L_R1......L_Rn：

L_R1＝L_d1+L_f1+H

......

L_Rn＝L_dn+L_fn+H

Comparing the adjacent sampling data to obtain the gauge deviation value L of the two groups of guide rails_△R1......L_ΔRn：

L_△R1＝L_R1-L_R2＝(L_d1+L_f1+H)-(L_d2+L_f2+H)＝(L_d1+L_f1)-(L_d2+L_f2)

......

L_△Rn＝(L_dn+L_fn)-(L_d(n+1)+L_f(n+1))

And comparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified flaw point if the deviation value exceeds the standard allowable value, and identifying the flaw point by an operator according to the data detected by the position at the moment.

The invention has the beneficial effects that:

compared with the prior art, the elevator guide rail installation accuracy detection device provided by the invention has the advantages that two vertically downward reference sample lines, namely plumb lines, are respectively arranged on one sides of the two groups of guide rails and are used as the detection references. And the two detection supports are respectively connected with the two groups of guide rails in a sliding manner, the detection assemblies are arranged on the detection supports, and the detection supports are driven by the driving mechanism to slide on the guide rails, so that the detection assemblies can accurately detect the verticality, the subtend degree and the gauge of the guide rail installation.

Specifically, the detection assembly comprises a first displacement sensor, a second displacement sensor, a third displacement sensor, a fourth displacement sensor and a fifth displacement sensor. The direction vertical to the side face of the guide rail is preset as a first direction, the direction vertical to the top face of the guide rail is preset as a second direction, the first displacement sensor is used for measuring the first direction distance between one side face of the guide rail and the first direction distance between the other side face of the guide rail, the third displacement sensor is used for measuring the second direction distance between the top face of the guide rail and the first direction distance between the reference sample line and the fifth displacement sensor is used for measuring the second direction distance between the reference sample line and the fifth direction distance between the reference sample line and the second direction distance between the reference sample line and the fourth direction distance.

The related data are synchronously recorded and processed through the displacement sensors, and the judgment and the result display can be automatically completed after the test is finished. Compared with the prior art, the device is simple to operate, is favorable for guaranteeing the measurement precision, improves the efficiency of detection operation, and can greatly reduce the working strength of operators.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural view of an elevator guide rail installation accuracy detecting apparatus according to an embodiment;

FIG. 2 is a schematic view of the mounting structure of the detection bracket of FIG. 1;

fig. 3 is an enlarged view of a portion a of fig. 1.

Description of reference numerals:

100. a reference sample line;

200. a guide rail;

300. detecting the bracket; 310. a first displacement sensor; 320. a second displacement sensor; 330. a third displacement sensor; 340. a fourth displacement sensor; 350. a fifth displacement sensor; 360. a photoelectric speedometer; 370. adjusting the sliding chute;

400. a drive assembly; 410. an elevator car; 411. a first roller; 412. a shaft lever; 413. a reflection band of light; 414. a second roller; 415. a cross beam; 420. a magnetic member;

500. a power supply module;

600. a terminal module;

700. and a control module.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

As shown in fig. 1 to 3, in one embodiment, there is provided an installation accuracy detecting apparatus for guide rails 200 of an elevator, including two reference patterns 100, two detecting brackets 300, and a driving assembly 400, the two reference patterns 100 being respectively disposed at one side of two sets of guide rails 200, the reference patterns 100 being vertical lines. Two detection support 300 settings are connected with two sets of guide rail 200 sliding connection respectively, are equipped with the determine module on detecting support 300 for detect each data of guide rail 200. The driving assembly 400 is used to drive the detecting bracket 300 to move on the guide rail 200, so that the detecting assembly on the detecting bracket 300 corresponds to data of each point of the detecting guide rail 200.

Two vertically downward reference ruled lines 100, i.e., vertical lines, are provided on one side of the two sets of guide rails 200, respectively, for serving as a reference for detection. And then, the two detection supports 300 are respectively connected with the two groups of guide rails 200 in a sliding manner, the detection supports 300 are provided with detection components, the detection supports 300 are driven by a driving mechanism to slide on the guide rails 200, and the detection components can accurately detect the verticality, the subtended angle and the track gauge of the installation of the guide rails 200.

Specifically, the sensing assembly includes a first displacement sensor 310, a second displacement sensor 320, a third displacement sensor 330, a fourth displacement sensor 340, and a fifth displacement sensor 350. A direction perpendicular to the side surface of the guide rail 200 is preset as a first direction, a direction perpendicular to the top surface of the guide rail 200 is preset as a second direction, the first displacement sensor 310 is used for measuring the first direction distance between one side surface of the guide rail 200 and the top surface thereof, the second displacement sensor 320 is used for measuring the first direction distance between the other side surface of the guide rail 200 and the top surface thereof, the third displacement sensor 330 is used for measuring the second direction distance between the top surface of the guide rail 200 and the top surface thereof, the fourth displacement sensor 340 is used for measuring the first direction distance between the reference sample line 100 and the top surface thereof, and the fifth displacement sensor 350 is used for measuring the second direction distance between the reference sample line 100 and the top surface thereof.

The related data are synchronously recorded and processed through the displacement sensors, and the judgment and the result display can be automatically completed after the test is finished. Compared with the prior art, the device is simple to operate, is favorable for guaranteeing the measurement precision, improves the efficiency of detection operation, and can greatly reduce the working strength of operators.

In this embodiment, the portable electronic device further includes a control module 700, a power module 500 and a terminal module 600, which are connected to each other, wherein the control module 700 is further connected to the power module 500 and the detection component, respectively, so as to control the power module 500 to supply power to the detection component, and ensure that the detection component works normally. And, the control module 700 receives and processes the data recorded by the detection component and outputs the processed data to the terminal module 600, so that the operator can check the related data analysis on the terminal module 600 to obtain the final detection result. In this embodiment, the terminal is a laptop computer, which can be directly placed on the top surface of the elevator car 410 to receive data recording and analysis of the control module 700 and the detection assembly. The control module 700 is disposed on the test fixture 300 to receive data from the test assembly. Also, to facilitate field wiring operations, etc., the power module 500 may be placed directly on the top surface of the elevator car 410 and wired to the control module 700 and the sensing assembly, respectively.

In one embodiment, the drive assembly 400 includes an elevator car 410, and the detection bracket 300 is secured to a top surface of the elevator car 410. The elevator car 410 is controlled to slowly run between the guide rails 200 at the overhauling speed, so that the detection bracket 300 is driven to move relative to the guide rails 200, and the detection component on the detection bracket 300 can detect data of each point of the guide rails 200.

In one embodiment, the driving assembly 400 further includes a connecting member, and the detecting bracket 300 is fixed on the top surface of the elevator car 410 through the connecting member, so as to ensure that the detecting bracket 300 and the elevator car 410 are stably installed, and prevent the detecting bracket 300 from moving during the movement process to cause data detection errors. Specifically, in one embodiment, the connecting member is configured as a magnetic member 420, the top surface of the elevator car 410 is provided with a first magnetic portion magnetically coupled to the magnetic member 420, and the detecting bracket 300 is provided with a second magnetic portion magnetically coupled to the magnetic member 420. More specifically, in the present embodiment, the detecting bracket 300 is made of magnetic metal, so that the magnetic member 420 can be directly attached to the outer surface of the detecting bracket 300. In addition, the other end of the magnetic part 420 is directly magnetically attached to the magnetic metal beam 415 on the top surface of the elevator car 410, so that the detection bracket 300 is directly and fixedly attached to the top surface of the elevator car 410 through the magnetic part 420.

In one embodiment, the elevator car 410 is provided with a first roller 411 for sliding connection with the guide rail 200, and a rim of the first roller 411 abuts against a side surface of the guide rail 200. The shaft 412 of the first roller 411 is provided with a reflection light band 413, and the reflection light band 413 is adhered to the shaft 412 of the guide shoe in an adhesion manner. The detection assembly further comprises a photoelectric speedometer 360 arranged towards the reflection light band 413, and in the process that the elevator car 410 runs on the guide rail 200, the position of the detection support 300 on the guide rail 200 can be calculated by continuously detecting the linear speed of the rotation of the shaft rod 412 through the photoelectric speedometer 360 and multiplying the linear speed by the running time, so that the position of each measuring point measured by the detection assembly can be further determined, and the measurement accuracy can be favorably ensured.

Preferably, in one of the embodiments, the elevator car 410 is further provided with a second roller 414, and a rim of the second roller 414 abuts against a top surface of the guide rail 200. Supplementary elevator car 410 slides on guide rail 200 through second gyro wheel 414 for elevator car 410 drives and detects support 300 and move more steadily on guide rail 200, avoids detecting support 300 and takes place to rock and influence the detection accuracy of data in the motion process.

In one embodiment, the sensing assembly is movably mounted to the sensing carriage 300 such that the sensing assembly can be movably adjusted to accurately align the object. Specifically, in one embodiment, the adjusting sliding groove 370 is formed in the detecting bracket 300, the detecting components are slidably disposed in the adjusting sliding groove 370, and the adjusting sliding groove 370 enables the corresponding detecting components to be adjusted to the corresponding detecting positions, which is beneficial to ensuring the accuracy of the detected data.

In one embodiment, the distances between the first displacement sensor 310, the second displacement sensor 320 and the third displacement sensor 330 and the corresponding surface to be measured of the guide rail 200 are set between 10mm and 100 mm; the distances between the fourth displacement sensor 340 and the fifth displacement sensor and the corresponding reference spline 100 are set to be between 10mm and 100 mm. The touch caused by the fact that the displacement sensor is too close to the measured object is avoided, the phenomenon that data measurement is inaccurate due to the fact that the displacement sensor is too far away from the measured object is avoided, and therefore reliability and accuracy of detected data are guaranteed. Of course, the distance between the sensor and the object to be measured can be specifically adjusted according to the parameter specification of the displacement sensor actually used, and is not limited to the set data.

On the other hand, a method for detecting the installation accuracy of the elevator guide rail 200 is also provided, the method comprises the above device for detecting the installation accuracy of the elevator guide rail 200, and the following steps are also included:

arranging reference sample lines 100 on one side of the two sets of guide rails 200 respectively so that the reference sample lines 100 are vertically downward;

slidably coupling the detection bracket 300 with the guide rail 200 and allowing the detection bracket 300 to slide with respect to the guide rail 200 under the driving of the driving assembly 400;

the first displacement sensor 310 is aligned with one side surface of one of the guide rails 200 in a first direction, and the distance between one side surface of the guide rail 200 and the first displacement sensor 310 in the first direction is measured and recorded as L_a1；

The fourth displacement sensor 340 is aligned with the reference pattern 100 disposed on the side corresponding to the guide rail 200 in the first direction, and the distance between the reference pattern 100 and the fourth displacement sensor 340 in the first direction is measured and recorded as L_b1Recording the horizontal distance between the first displacement sensor 310 and the fourth displacement sensor 340 as a constant K;

calculating a distance L between one side surface of the guide rail 200 and the corresponding reference pattern 100 in the first direction from data measured by the first and fourth displacement sensors 310 and 340_X1Continuously detecting to obtain continuous sampling data L_X1......L_Xn：

L_X1＝L_a1+L_b1+K

......

L_Xn＝L_an+L_bn+K

Comparing the adjacent sampling data to obtain the verticality deviation value L of one side surface of one group of guide rails 200_△X1......L_△Xn：

L_△X1＝L_X1-L_X2＝(L_a1+L_b1+K)-(L_a2+L_b2+K)＝(L_a1+L_b1)-(L_a2+L_b2)

......

L_△Xn＝(L_an+L_bn)-(L_a(n+1)+L_b(n+1))

Comparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified defective points if the deviation value exceeds the standard allowable value, and identifying the defective points according to data detected by the position at the moment for operators;

similarly, the distance L between one side of another set of guide rails 200 and the corresponding reference pattern 100 in the first direction is recorded_x1The verticality deviation value of one side surface of the other set of guide rails 200 is L_△x1......L_△xnComparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified defective points if the deviation value exceeds the standard allowable value, and identifying the defective points according to data detected by the position at the moment for operators;

the second displacement sensor 320 is aligned with the other side of the one set of rails 200 in the first direction, and the distance between the other side of the one set of rails 200 and the second displacement sensor 320 in the first direction is measured and recorded as L_c1Recording the distance in the first direction between the second displacement sensor 320 and the fourth displacement sensor 340 as a constant G;

by means of the second displacement sensor 320 and the fourth displacement sensor 340, calculating the distance L between the other side surface of one set of guide rails 200 and the reference sample line 100 in the first direction_Y1Continuously detecting to obtain continuous sampling data L_Y1......L_Yn：

L_Y1＝L_b1+G-L_c1

......

L_Yn＝L_bn+G-L_cn

Comparing the adjacent sampling data to obtain the verticality deviation value L of the other side surface of one group of guide rails 200_ΔY1......L_ΔYn：

L_△Y1＝L_Y1-L_Y2＝(L_b1+G-L_c1)-(L_b2+G-L_c2)＝(L_b1-L_c1)-(L_b2-L_c2)

......

L_△Yn＝(L_bn-L_cn)-(L_b(n+1)-L_c(n+1))

Comparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified defective points if the deviation value exceeds the standard allowable value, and identifying the defective points according to data detected by the position at the moment for operators;

similarly, the distance L between the other side of the other set of guide rails 200 and the corresponding reference pattern 100 in the first direction is recorded_y1The verticality deviation value of the other side surface of the other set of guide rails 200 is L_Δy1......L_ΔynComparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified defective points if the deviation value exceeds the standard allowable value, and identifying the defective points according to data detected by the position at the moment for operators;

the third displacement sensor 330 is aligned with the top surface of one of the sets of rails 200 in the second direction, and the distance between the top surface of the rail 200 and the third displacement sensor 330 in the second direction is measured and recorded as L_d1(ii) a Placing the fifth displacement sensor 350 along the secondThe reference pattern 100 disposed on the side corresponding to the guide rail 200 is aligned in two directions, and the distance between the reference pattern 100 and the fifth displacement sensor 350 in the second direction is measured and recorded as L_e1Adding the two to obtain the verticality sampling data L of the top surface of one group of guide rails 200 at a certain time_Z1Continuously detecting to obtain continuous sampling data L_Z1......L_Zn：

L_Z1＝L_d1+L_e1

......

L_Zn＝L_dn-L_en

Comparing the adjacent sampling data to obtain the top surface verticality deviation value L of one group of guide rails 200_{△ Z1}......L_△Zn：

L_△Z1＝L_Z1-L_Z2＝(L_d1+L_e1)-(L_d2+L_e2)

......

L_△Zn＝(L_dn+L_en)-(L_d(n+1)+L_e(n+1))

Comparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified defective points if the deviation value exceeds the standard allowable value, and identifying the defective points according to data detected by the position at the moment for operators;

similarly, the verticality sampling data L of the top surface of another set of guide rails 200 is recorded_z1The verticality deviation value of one side surface of the other set of guide rails 200 is L_△z1......L_△znComparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified defective points if the deviation value exceeds the standard allowable value, and identifying the defective points according to data detected by the position at the moment for operators;

calculating the distance data between one side surface of the two groups of guide rails 200 and the corresponding reference sample line 100 to obtain the deviation of the distance between the working surface on the same side of the two groups of guide rails 200 and the corresponding reference sample line 100The value, i.e. the deviation of the subtended degree of the guide rail 200, is recorded as L_△O1......L_△On：

L_△O1＝L_X1-L_x1

......

L_△On＝L_Xn-L_xn

Comparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified defective points if the deviation value exceeds the standard allowable value, and identifying the defective points according to data detected by the position at the moment for operators;

similarly, the deviation value of the subtend between the other side surfaces of the two groups of guide rails 200 is calculated to be L_△P1......L_△PnThe deviation value of the opposite direction degree between the top surfaces of the two sets of guide rails 200 is L_△Q1......L_△QnComparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified defective points if the deviation value exceeds the standard allowable value, and identifying the defective points according to data detected by the position at the moment for operators;

recording a distance L between the top surface of the other guide rail 200 measured by the third displacement sensor 330 for detecting the other guide rail 200 and the second direction corresponding to the third displacement sensor_f1The distance between the third displacement sensors 330 of the two sets of guide rails 200 in the second direction is recorded as a constant H, and the distance between the top surfaces of the two sets of guide rails 200 at a certain time in the second direction, i.e., the track pitch of the two sets of guide rails 200, is calculated and recorded as L_R1Continuously detecting to obtain continuous sampling data L_R1......L_Rn：

L_R1＝L_d1+L_f1+H

......

L_Rn＝L_dn+L_fn+H

Comparing the adjacent sampling data to obtain the gauge deviation value L of the two groups of guide rails 200_△R1......L_ΔRn：

L_△R1＝L_R1-L_R2＝(L_d1+L_f1+H)-(L_d2+L_f2+H)＝(L_d1+L_f1)-(L_d2+L_f2)

......

L_ΔRn＝(L_dn+L_fn)-(L_d(n+1)+L_f(n+1))

And comparing and analyzing the fluctuation range of the deviation value with a standard allowable value, judging the deviation value to be qualified if the deviation value does not exceed the standard allowable value, judging the deviation value to be unqualified flaw point if the deviation value exceeds the standard allowable value, and identifying the flaw point by an operator according to the data detected by the position at the moment.

The "certain body" and the "certain portion" may be a part corresponding to the "member", that is, the "certain body" and the "certain portion" may be integrally formed with the other part of the "member"; the "part" can be made separately from the "other part" and then combined with the "other part" into a whole. The expressions "a certain body" and "a certain part" in the present application are only one example, and are not intended to limit the scope of the present application for reading convenience, and the technical solutions equivalent to the present application should be understood as being included in the above features and having the same functions.

It should be noted that, the components included in the "unit", "assembly", "mechanism" and "device" of the present application can also be flexibly combined, i.e., can be produced in a modularized manner according to actual needs, so as to facilitate the modularized assembly. The division of the above-mentioned components in the present application is only one example, which is convenient for reading and is not a limitation to the protection scope of the present application, and the same functions as the above-mentioned components should be understood as equivalent technical solutions in the present application.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to," "disposed on," "secured to," or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, when one element is considered as "fixed transmission connection" with another element, the two elements may be fixed in a detachable connection manner or in an undetachable connection manner, and power transmission can be achieved, such as sleeving, clamping, integrally-formed fixing, welding and the like, which can be achieved in the prior art, and is not cumbersome. When an element is perpendicular or nearly perpendicular to another element, it is desirable that the two elements are perpendicular, but some vertical error may exist due to manufacturing and assembly effects. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

It should also be understood that in explaining the connection relationship or the positional relationship of the elements, although not explicitly described, the connection relationship and the positional relationship are interpreted to include an error range which should be within an acceptable deviation range of a specific value determined by those skilled in the art. For example, "about," "approximately," or "substantially" may mean within one or more standard deviations, without limitation.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.