阅读说明：本技术 一种建筑工程用平整度检测装置 (Flatness detection device for building engineering ) 是由 王意 曾振杰 张敏敏 刘颖畅 杨亮军 王慧斌 苏嗣奎 邬希丁 刘志皇 李刚 周晶 于 2020-12-08 设计创作，主要内容包括：本发明公开了一种建筑工程用平整度检测装置,包括左安装板和右安装板,所述左安装板下端固定安装有两个前后对称的第一支撑柱,两个所述第一支撑柱下端均固定安装有第一滚轮,所述右安装板位于左安装板正右方,所述右安装板下端通过轴承活动连接有连接板,所述连接板下端固定安装有两个前后对称的第二支撑柱,两个所述第二支撑柱下端均固定安装有第二滚轮,且第二滚轮与第一滚轮位于同一水平面,所述右安装板右端固定安装有牵引环,所述右安装板上端固定安装有控制台。本发明的一种建筑工程用平整度检测装置,可对较长距离的地面进行平整度检测,且可以得出具体的平整度偏差值,检测精度高,智能化程度高,操作简单,使用方便,实用性强。(The invention discloses a flatness detection device for constructional engineering, which comprises a left mounting plate and a right mounting plate, wherein two first support columns which are symmetrical front and back are fixedly arranged at the lower end of the left mounting plate, first idler wheels are fixedly arranged at the lower ends of the two first support columns, the right mounting plate is positioned right of the left mounting plate, the lower end of the right mounting plate is movably connected with a connecting plate through a bearing, two second support columns which are symmetrical front and back are fixedly arranged at the lower end of the connecting plate, second idler wheels are fixedly arranged at the lower ends of the two second support columns, the second idler wheels and the first idler wheels are positioned on the same horizontal plane, a traction ring is fixedly arranged at the right end of the right mounting plate, and a control console is fixedly arranged at the. The flatness detection device for the building engineering can detect the flatness of the ground at a longer distance, can obtain a specific flatness deviation value, and is high in detection precision, high in intelligent degree, simple in operation, convenient to use and strong in practicability.)

1. The utility model provides a roughness detection device for building engineering, includes left mounting panel (1) and right mounting panel (5), its characterized in that: the left mounting plate (1) lower extreme fixed mounting has two first support columns (2) of symmetry from beginning to end, two the equal fixed mounting of first support column (2) lower extreme has first gyro wheel (3), right side mounting panel (5) are located right-hand side of left mounting plate (1), right side mounting plate (5) lower extreme has connecting plate (6) through bearing swing joint, connecting plate (6) lower extreme fixed mounting has two second support columns (7) of symmetry from beginning to end, two the equal fixed mounting of second support column (7) lower extreme has second gyro wheel (8), and second gyro wheel (8) and first gyro wheel (3) are located same horizontal plane, right side mounting plate (5) right-hand member fixed mounting has traction ring (9), right side mounting plate (5) upper end fixed mounting has control cabinet (10), control cabinet (10) upper end rear portion is provided with display screen (11), control button (13) and power button (12) have from left to right set gradually in control cabinet (10) upper end middle part, the equal fixed mounting in left side mounting panel (1) right-hand member and right mounting panel (5) left end has installation piece (4) of symmetry around two, and the front side is two all be provided with between two installation pieces (4) of installation piece (4) and rear side installation pole (14), two be provided with elevating system (15) between installation pole (14) jointly, elevating system (15) lower part is provided with detection mechanism (16), and detection mechanism (16) are connected with elevating system (15) transmission, equal electric connection between control cabinet (10) and elevating system (15) and detection mechanism (16).

2. The flatness detecting apparatus for construction engineering according to claim 1, wherein: open in the middle part of the one end that installation piece (4) are close to detection mechanism (16) has horizontal groove (21), installation piece (4) inside is opened there are spout (22), and spout (22) communicate with each other with horizontal groove (21), installation piece (4) upper end is opened has perpendicular groove (23), and erects groove (23) and communicate with each other with spout (22), the length homogeneous phase of horizontal groove (21), spout (22) and perpendicular groove (23) is the same, the one end upper portion fixed mounting that installation piece (4) are close to detection mechanism (16) has length chi (24).

3. The flatness detecting apparatus for construction engineering according to claim 1, wherein: installation pole (14) are semi-cylindrical structure, installation pole (14) left end and right-hand member run through two spout (22) that are located same vertical face respectively, the equal fixed mounting of installation pole (14) left end and right-hand member has stopper (32), and stopper (32) and spout (22) sliding connection, stopper (32) are close to the fixed surface of detection mechanism (16) and install wearing piece (33), and wear piece (33) and run through horizontal groove (21), the one end fixed mounting that wearing piece (33) are close to detection mechanism (16) has pointer (34), stopper (32) upper portion surface threaded connection has fixing bolt (35), and fixing bolt (35) run through perpendicular groove (23), the one end that installation pole (14) are close to detection mechanism (16) is opened there is T-slot (31).

4. The flatness detecting apparatus for construction engineering according to claim 1, wherein: the lifting mechanism (15) comprises two T-shaped blocks (41), the two T-shaped blocks (41) are respectively connected with the two T-shaped grooves (31) in a sliding mode, supporting blocks (42) are fixedly mounted at the ends, close to each other, of the two T-shaped blocks (41), two connecting rods (43) are fixedly mounted at the upper ends of the two supporting blocks (42), the two connecting rods (43) are distributed in a bilateral symmetry mode, a top plate (49) is fixedly mounted at the upper ends of the four connecting rods (43) together, an electric telescopic rod (44) is fixedly mounted at the upper end of the top plate (49), the electric telescopic rod (44) is electrically connected with the control console (10), two bilaterally symmetrical sliding columns (45) are fixedly mounted at the lower ends of the two supporting blocks (42), limiting discs (48) are fixedly mounted at the lower ends of the four sliding columns (45), and a push plate (47) is connected with the four sliding columns (, four sliding column (45) surface all has cup jointed buffer spring (46), and buffer spring (46) lower extreme and upper end respectively with push pedal (47) upper end and roof (49) lower extreme fixed connection, electric telescopic handle (44) output runs through roof (49) and push pedal (47) upper end fixed connection.

5. The flatness detecting apparatus for construction engineering according to claim 4, wherein: the height of the supporting block (42) is equal to that of the mounting rod (14).

6. The flatness detecting apparatus for construction engineering according to claim 1, wherein: detection mechanism (16) are including shell (51), shell (51) upper end and push pedal (47) lower extreme fixed connection, shell (51) lower extreme is opened there are two sets of flexible groove (52), and two sets of flexible groove (52) are bilateral symmetry and distribute, and are two sets of all be provided with extension pole (53) in flexible groove (52), extension pole (53) lower extreme fixed mounting has anchor strut (54), anchor strut (54) lower extreme fixed mounting has touching ball (55), and touches ball (55) and control cabinet (10) electric connection.

7. The flatness detecting apparatus for construction engineering according to claim 6, wherein: the utility model discloses a flexible electronic switch, including shell (51), mounting groove (61), cell wall down open and have a plurality of dead slot (62), and a plurality of dead slot (62) communicate with each other with a plurality of flexible groove (52) respectively, cell wall fixed mounting has detection circuitry board (58) on mounting groove (61), and detection circuitry board (58) and control cabinet (10) electric connection, detection circuitry board (58) lower extreme fixed mounting has a plurality of spring resistor (57), and spring resistor (57) and detection circuitry board (58) electric connection, a plurality of the equal fixed mounting of spring resistor (57) lower extreme has collets (56), a plurality of collets (56) extend pole (53) upper end fixed connection with a plurality of respectively.

8. The flatness detecting apparatus for construction engineering according to claim 7, wherein: the insulation block (56) is connected with the insulation groove (62) in a sliding mode.

Technical Field

The invention relates to the technical field of constructional engineering detection, in particular to a flatness detection device for constructional engineering.

Background

The building engineering is an engineering entity which performs various technical works and completions such as planning, surveying, designing, constructing, completing and the like for newly building, reconstructing or extending building buildings and affiliated structures and installation engineering of lines, pipelines and equipment matched with the engineering entity. Also refers to the construction of various houses and buildings, also known as the construction workload. The investment amount of the part can be realized only by the construction activities with the need of carrying out the work and the material movement. The flatness detection for the building engineering is mainly used for detecting the flatness of the ground.

The prior flatness detection device for the building engineering has the following defects: 1. most of the existing flatness detection devices for building engineering adopt gradienters for detection, but the gradienters are only suitable for detection of shorter ground and are not suitable for flatness detection of longer ground, so that the flatness detection devices are not practical; 2. no matter a level gauge and a level ruler in the traditional flatness detection device for the building engineering adopt the liquid level principle of a bubble level, but the detection mode cannot obtain a specific levelness deviation numerical value firstly, and then the mode needs direct observation by people when reading data, so that errors exist; 3. most of the existing flatness detection devices for construction engineering are not provided with fixed structures, cannot be extended, namely cannot detect the ground with a longer distance, and are not practical; 4. the existing flatness detection device for the building engineering is not convenient to use due to the intelligent degree. Therefore, we propose a flatness detecting device for construction engineering.

Disclosure of Invention

The invention mainly aims to provide a flatness detection device for constructional engineering, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the invention adopts the technical scheme that:

a flatness detection device for building engineering comprises a left mounting plate and a right mounting plate, wherein two first support columns which are symmetrical front and back are fixedly arranged at the lower end of the left mounting plate, two first support columns are fixedly arranged at the lower ends of the first support columns, a first roller is fixedly arranged at the lower end of the first support column, the right mounting plate is positioned right to the left mounting plate, a connecting plate is movably connected at the lower end of the right mounting plate through a bearing, two second support columns which are symmetrical front and back are fixedly arranged at the lower end of the connecting plate, a second roller is fixedly arranged at the lower end of the two second support columns, the second roller and the first roller are positioned on the same horizontal plane, a traction ring is fixedly arranged at the right end of the right mounting plate, a control console is fixedly arranged at the upper end of the right mounting plate, a display screen is arranged at the rear part of the upper end of the control console, a control button and a power, the front side is two all be provided with the installation pole between two installation pieces of installation piece and rear side, two be provided with elevating system jointly between the installation pole, the elevating system lower part is provided with detection mechanism, and detection mechanism is connected with the elevating system transmission, equal electric connection between control cabinet and elevating system and the detection mechanism.

Preferably, the installation piece is close to the one end middle part of detection mechanism and is opened there is the cross slot, the inside spout that has opened of installation piece, and spout and cross slot communicate with each other, the installation piece upper end is opened there is perpendicular groove, and erects the groove and communicate with each other with the spout, the length homogeneous phase in cross slot, spout and perpendicular groove is the same, the one end upper portion fixed mounting that the installation piece is close to detection mechanism has the length chi.

Preferably, the installation pole is the semi-cylindrical structure, installation pole left end and right-hand member run through two spouts that are located same vertical face respectively, the equal fixed mounting of installation pole left end and right-hand member has the stopper, and stopper and spout sliding connection, the stopper is close to detection mechanism's fixed surface and installs the piece of wearing, and wears the piece and run through the cross slot, the piece of wearing is close to detection mechanism's one end fixed mounting has the pointer, stopper upper portion surface threaded connection has fixing bolt, and fixing bolt runs through perpendicular groove, the one end that the installation pole is close to detection mechanism is opened there is the T-slot.

Preferably, the lifting mechanism comprises two T-shaped blocks, the two T-shaped blocks are respectively connected with the two T-shaped grooves in a sliding manner, one ends, close to each other, of the two T-shaped blocks are fixedly provided with supporting blocks, the upper ends of the two supporting blocks are fixedly provided with two connecting rods which are symmetrically distributed in a left-right manner, the upper ends of the four connecting rods are fixedly provided with a top plate together, the upper end of the top plate is fixedly provided with an electric telescopic rod which is electrically connected with a control console, the lower ends of the two supporting blocks are fixedly provided with two bilaterally symmetrical sliding columns, the lower ends of the four sliding columns are fixedly provided with a limiting disc, the four sliding columns are connected with a push plate in a penetrating and sliding manner together, the outer surfaces of the four sliding columns are sleeved with buffer springs, and the lower ends and the upper ends of, the output end of the electric telescopic rod penetrates through the top plate and is fixedly connected with the upper end of the push plate.

Preferably, the support block height is equal to the height of the mounting bar.

Preferably, detection mechanism includes the shell, shell upper end and push pedal lower extreme fixed connection, the shell lower extreme is opened there are two sets of flexible grooves, and two sets of flexible grooves are bilateral symmetry and distribute, and are two sets of flexible inslot all is provided with the extension pole, extension pole lower extreme fixed mounting has the anchor strut, anchor strut lower extreme fixed mounting has the touching ball, and touching ball and control cabinet electric connection.

Preferably, the inside mounting groove that has opened of shell, the cell wall is opened under the mounting groove has a plurality of dead slot, and a plurality of dead slot communicates with each other with a plurality of flexible groove respectively, cell wall fixed mounting has a detection circuitry board on the mounting groove, and detection circuitry board and control cabinet electric connection, detection circuitry board lower extreme fixed mounting has a plurality of spring resistor, and spring resistor and detection circuitry board electric connection, a plurality of the equal fixed mounting of spring resistor lower extreme has collets, a plurality of the collets respectively with a plurality of extension pole upper end fixed connection.

Preferably, the insulation block is slidably connected with the insulation groove.

Compared with the prior art, the invention has the following beneficial effects:

1. in the invention, the flatness of the ground is detected by arranging the detection mechanism, when a longer ground is detected, the detection mechanism is connected by a traction ring by using a tractor, the lifting mechanism is started by the console, the detection mechanism is driven to descend by the lifting mechanism, when a plurality of touch balls in the detection mechanism are in contact with the ground, the touch balls transmit electric signals to the console, the console automatically closes the lifting mechanism after receiving the electric signals, at the moment, the tractor drives the detection mechanism to move, if the ground is flat, a plurality of touch balls are kept relatively still, if the ground is uneven, the touch balls push upwards or pull downwards the reinforcing rod, the reinforcing rod drives the extension rod to move, the extension rod drives the insulating block to move, the insulating block pushes upwards or pulls downwards the spring resistor, the resistance value of the spring resistor is changed due to deformation, and the detection circuit board outputs different data to the console through the change of the resistance value of the spring resistor, the console calculates the maximum deviation distance of the touch ball through the data, namely the flatness deviation value of the section of ground is detected.

2. In the invention, the flatness of the ground is detected by the detection mechanism, the detection data is transmitted to the console, and the console displays the specific flatness deviation value through the display screen, so that a user can directly and clearly know the flatness deviation value of the detected ground.

3. According to the invention, the mounting rod can be extended, when the tractor is not used for auxiliary detection, the mounting rod can slide in the sliding groove by unscrewing the fixing bolt, the whole mounting block is pulled to extend the mounting rod to a proper length, the fixing bolt is screwed again after the stretching is finished, and at the moment, the whole detection mechanism can slide on the T-shaped groove on the mounting rod so as to detect the ground flatness of a section of length and meet different requirements of users.

4. In the invention, the stop of the lifting mechanism is automatically controlled by setting whether the touch ball collides with the ground or not, so that the damage caused by excessive collision of the touch ball and the ground due to misoperation of an operator is avoided, the deviation value of the ground flatness is calculated through the resistance value change of the spring resistor, specific flatness deviation value data are conveniently obtained, and the operator can conveniently use the electric device by centrally controlling each electrified mechanism through a control console.

Drawings

FIG. 1 is a schematic view of the overall structure of a flatness detecting apparatus for construction engineering according to the present invention;

FIG. 2 is a schematic diagram of the overall effect of the flatness detecting apparatus for construction engineering according to the present invention;

FIG. 3 is a schematic bottom view of the flatness detecting apparatus for construction engineering according to the present invention;

FIG. 4 is a schematic view of the overall structure of a mounting block and a mounting rod of the flatness detecting apparatus for construction engineering according to the present invention;

FIG. 5 is a schematic diagram of the overall structure of a lifting mechanism of the flatness detecting apparatus for construction engineering according to the present invention;

FIG. 6 is a schematic view of the overall structure of a detecting mechanism of the flatness detecting apparatus for construction engineering according to the present invention;

FIG. 7 is a schematic view of the internal structure of the detecting mechanism of the flatness detecting apparatus for construction engineering according to the present invention;

fig. 8 is a schematic diagram of a detailed structure of a detection mechanism of the flatness detection apparatus for construction engineering according to the present invention.

In the figure: 1. a left mounting plate; 2. a first support column; 3. a first roller; 4. mounting blocks; 5. a right mounting plate; 6. a connecting plate; 7. a second support column; 8. a second roller; 9. a traction ring; 10. a console; 11. a display screen; 12. a power button; 13. a control button; 14. mounting a rod; 15. a lifting mechanism; 16. a detection mechanism; 21. a transverse groove; 22. a chute; 23. a vertical slot; 24. a length scale; 31. a T-shaped slot; 32. a limiting block; 33. block penetrating; 34. a pointer; 35. fixing the bolt; 41. a T-shaped block; 42. a support block; 43. a connecting rod; 44. an electric telescopic rod; 45. a traveler; 46. a buffer spring; 47. pushing the plate; 48. a limiting disc; 49. a top plate; 51. a housing; 52. a telescopic groove; 53. a spreader bar; 54. a reinforcing rod; 55. touching the ball; 56. an insulating block; 57. a spring resistor; 58. detecting the circuit board; 61. mounting grooves; 62. and an insulating groove.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in figures 1-8, a flatness detection device for construction engineering comprises a left mounting plate 1 and a right mounting plate 5, wherein two front-back symmetrical first support columns 2 are fixedly arranged at the lower end of the left mounting plate 1, first rollers 3 are fixedly arranged at the lower ends of the two first support columns 2, the right mounting plate 5 is positioned right to the left mounting plate 1, the lower end of the right mounting plate 5 is movably connected with a connecting plate 6 through a bearing, two front-back symmetrical second support columns 7 are fixedly arranged at the lower end of the connecting plate 6, second rollers 8 are fixedly arranged at the lower ends of the two second support columns 7, the second rollers 8 and the first rollers 3 are positioned on the same horizontal plane from left to right, a traction ring 9 is fixedly arranged at the right end of the right mounting plate 5, a control console 10 is fixedly arranged at the upper end of the right mounting plate 5, a display screen 11 is arranged at the rear part of the upper end of the control, the left end of the left mounting plate 1 and the left end of the right mounting plate 5 are fixedly provided with two mounting blocks 4 which are symmetrical front and back, mounting rods 14 are arranged between the two mounting blocks 4 on the front side and the two mounting blocks 4 on the rear side, a lifting mechanism 15 is arranged between the two mounting rods 14, a detection mechanism 16 is arranged on the lower portion of the lifting mechanism 15, the detection mechanism 16 is in transmission connection with the lifting mechanism 15, and the console 10 is electrically connected with the lifting mechanism 15 and the detection mechanism 16.

The middle of one end of the mounting block 4 close to the detection mechanism 16 is provided with a transverse groove 21, the mounting block 4 is internally provided with a sliding groove 22, the sliding groove 22 is communicated with the transverse groove 21, the upper end of the mounting block 4 is provided with a vertical groove 23, the vertical groove 23 is communicated with the sliding groove 22, the lengths of the transverse groove 21, the sliding groove 22 and the vertical groove 23 are the same, the mounting block 4 is fixedly provided with a length ruler 24 close to the upper part of one end of the detection mechanism 16, and the length ruler 24 is used for facilitating a user to know the stretching distance of the mounting rod 14.

Installation pole 14 is semi-cylindrical structure, installation pole 14 left end and right-hand member run through two spouts 22 that are located same vertical face respectively, the equal fixed mounting of installation pole 14 left end and right-hand member has stopper 32, and stopper 32 and spout 22 sliding connection, stopper 32 is close to the fixed surface of detection mechanism 16 and installs wearing piece 33, and wear piece 33 and run through horizontal groove 21, wear the one end fixed mounting that piece 33 is close to detection mechanism 16 and have pointer 34, stopper 32 upper portion surface threaded connection has fixing bolt 35, and fixing bolt 35 runs through perpendicular groove 23, the one end that installation pole 14 is close to detection mechanism 16 is opened there is T-shaped groove 31, pointer 34 is used for indicating length chi 24's specific numerical value, the person of facilitating the use learns the specific tensile length of installation pole 14.

The lifting mechanism 15 comprises two T-shaped blocks 41, the two T-shaped blocks 41 are arranged, the two T-shaped blocks 41 are respectively connected with the two T-shaped grooves 31 in a sliding manner, one ends, close to each other, of the two T-shaped blocks 41 are fixedly provided with supporting blocks 42, the upper ends of the two supporting blocks 42 are fixedly provided with two connecting rods 43, the two connecting rods 43 are distributed in a bilateral symmetry manner, the upper ends of the four connecting rods 43 are jointly and fixedly provided with a top plate 49, the upper end of the top plate 49 is fixedly provided with an electric telescopic rod 44, the electric telescopic rod 44 is electrically connected with the control console 10, the lower ends of the two supporting blocks 42 are respectively and fixedly provided with two bilaterally symmetrical sliding columns 45, the lower ends of the four sliding columns 45 are respectively and fixedly provided with a limiting plate 48, the four sliding columns 45 are jointly penetrated and slidably connected with a push plate 47, electric telescopic handle 44 output runs through roof 49 and push pedal 47 upper end fixed connection, drives push pedal 47 through electric telescopic handle 44 output and reciprocates, and push pedal 47 drives shell 51 and reciprocates, and the skew takes place for push pedal 47 when reciprocating is avoided in the setting of traveller 45, and buffer spring 46's setting is the reaction force that reduces push pedal 47 and receive, avoids push pedal 47 vibration amplitude too big to lead to shell 51 to take place the skew.

The supporting block 42 is equal to the height of the mounting rod 14, the supporting block 42 is used for supporting the fixed connecting rod 43 and the sliding column 45, and the supporting block 42 is made of aluminum, so that the weight of the whole lifting mechanism 15 is reduced.

Detection mechanism 16 includes shell 51, shell 51 upper end and push pedal 47 lower extreme fixed connection, shell 51 lower extreme is opened there are two sets of flexible grooves 52, and two sets of flexible grooves 52 are bilateral symmetry and are distributed, all be provided with extension pole 53 in two sets of flexible grooves 52, extension pole 53 lower extreme fixed mounting has anchor strut 54, anchor strut 54 lower extreme fixed mounting has touch ball 55, and touch ball 55 and control cabinet 10 electric connection, touch ball 55 is prior art, when touch ball 55 and ground contact, touch ball 55 can be to control cabinet 10 transmission signal of telecommunication.

Inside the opening of shell 51 has mounting groove 61, the cell wall is opened under mounting groove 61 has a plurality of insulated slot 62, and a plurality of insulated slot 62 communicates with each other with a plurality of flexible groove 52 respectively, cell wall fixed mounting has detection circuitry 58 on mounting groove 61, and detection circuitry 58 and control cabinet 10 electric connection, detection circuitry 58 lower extreme fixed mounting has a plurality of spring resistor 57, and spring resistor 57 and detection circuitry 58 electric connection, the equal fixed mounting of a plurality of spring resistor 57 lower extreme has insulating block 56, a plurality of insulating block 56 respectively with a plurality of extension pole 53 upper end fixed connection, spring resistor 57 is prior art, if spring resistor 57 takes place deformation, its resistance value changes, a plurality of spring resistor 57 and detection circuitry 58 are parallelly connected, detection circuitry 58 can detect the resistance value change of every spring resistor 57 respectively promptly.

The insulation block 56 is slidably connected with the insulation groove 62, the insulation block 56 plays a role of insulation, and the arrangement of the insulation groove 62 limits the maximum moving distance of the insulation block 56.

It should be noted that, the invention is a flatness detecting device for building engineering, when detecting the flatness of a long ground, the invention is connected by a towing vehicle through a towing ring 9, a lifting mechanism 15 is started through a console 10, a push plate 47 is driven to move up and down through an output end of an electric telescopic rod 44, a housing 51 is driven to move up and down through the push plate 47, when a plurality of touch balls 55 in a detecting mechanism 16 are in contact with the ground, the touch balls 55 transmit electric signals to the console 10, the console 10 automatically closes the electric telescopic rod 44 after receiving the electric signals, at this time, the invention is driven to move by the towing vehicle, if the ground is flat, a plurality of touch balls 55 are kept relatively still, if the ground is uneven, the touch balls 55 push or pull a reinforcing rod 54 upwards, the reinforcing rod 54 drives an extending rod 53 to move, the extending rod 53 drives an insulating block 56 to move, the insulating block 56 pushes or pulls a spring resistor 57 downwards, the spring resistor 57 is deformed to cause the resistance value to change, the detection circuit board 58 outputs different data to the console 10 through the resistance value change of the spring resistor 57, the console 10 calculates the maximum deviation distance of the touch ball 55 through the data, that is, detects the flatness deviation value of the section of ground, when the tractor is not used for auxiliary detection, the mounting rod 14 can slide in the chute 22 by loosening the fixing bolt 35, the whole mounting block 4 is pulled to extend the mounting rod 14 to a proper length, the fixing bolt 35 is tightened again after the stretching is completed, at this time, the whole detection mechanism 16 can slide on the T-shaped groove 31 through the T-shaped block 41 to detect the ground flatness of a section of length, so as to meet different requirements of users, the counter-acting force applied to the push plate 47 during moving is reduced by arranging the buffer spring 46, so that the touch ball 55 is prevented from shifting due to overlarge vibration amplitude of the push plate 47, the invention has the advantages of high detection precision, high intelligent degree, simple operation, convenient use and strong practicability.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.