阅读说明：本技术 一种大回环调平装置 (Large-loop leveling device ) 是由 杨晨光 金子迪 邢成 刘明辉 李丽娟 陈阳 庄灿涛 朱小毅 薛兵 李江 陈全胜 于 2019-10-17 设计创作，主要内容包括：本发明公开了一种大回环调平装置,用于将待调平仪器调节至水平状态,装置包括筒体及其内部的调平机构；调平机构包括调平组件、调节环件、第一调节轴组件、第二调节轴组件,调平组件与待调平仪器相连接；待调平仪器通过第一调节轴组件与调节环件相连接,待调平仪器可相对于调节环件以第一转轴为旋转轴在调节角度范围内转动；调节环件通过第二调节轴组件与筒体相连接,调节环件可相对于筒体以第二转轴为旋转轴在调节角度范围内转动。本发明能够对待调平仪器进行自动调平,保证待调平仪器的正常工作状态。(The invention discloses a large loop leveling device, which is used for adjusting an instrument to be leveled to a horizontal state and comprises a cylinder and a leveling mechanism inside the cylinder; the leveling mechanism comprises a leveling component, an adjusting ring component, a first adjusting shaft component and a second adjusting shaft component, and the leveling component is connected with an instrument to be leveled; the instrument to be leveled is connected with the adjusting ring piece through the first adjusting shaft assembly, and can rotate in an adjusting angle range relative to the adjusting ring piece by taking the first rotating shaft as a rotating shaft; the adjusting ring piece is connected with the cylinder body through a second adjusting shaft assembly, and the adjusting ring piece can rotate in an adjusting angle range relative to the cylinder body by taking the second rotating shaft as a rotating shaft. The invention can automatically level the instrument to be leveled and ensure the normal working state of the instrument to be leveled.)

1. A large loop leveling device is used for adjusting an instrument to be leveled to a horizontal state and is characterized by comprising a cylinder and a leveling mechanism inside the cylinder;

the leveling mechanism comprises a leveling component, an adjusting ring component, a first adjusting shaft component and a second adjusting shaft component, and the leveling component is connected with the instrument to be leveled;

the instrument to be leveled is connected with the adjusting ring piece through the first adjusting shaft assembly, and the instrument to be leveled can rotate relative to the adjusting ring piece within an adjusting angle range by taking the first rotating shaft as a rotating shaft;

the adjusting ring piece is connected with the cylinder body through the second adjusting shaft assembly, and the adjusting ring piece can rotate in the adjusting angle range relative to the cylinder body by taking a second rotating shaft as a rotating shaft.

2. The device as claimed in claim 1, wherein opposite ends of the side wall of the instrument to be leveled are respectively connected with the first end and the second end of the adjusting ring member through a set of the first adjusting shaft assemblies, and the axes of the two sets of the first adjusting shaft assemblies are the first rotating shafts.

3. The device as claimed in claim 2, wherein the opposite ends of the cylinder are respectively connected with the third end and the fourth end of the adjusting ring member through a set of the second adjusting shaft assemblies, and the axes of the two sets of the second adjusting shaft assemblies are the second rotating shafts; the first rotating shaft and the second rotating shaft are perpendicular to each other.

4. The device of claim 1, wherein the inner space of the cylinder is spherical, and the edge surface of the adjusting mechanism corresponding to the inner space is provided with a cambered surface adapted to the spherical shape.

5. The device of claim 1, wherein the adjustment angle is 45 degrees.

6. The device of claim 1, wherein the leveling assembly comprises a driving unit, a transmission unit and a linkage plate, the driving unit can drive the linkage plate to move up and down through the transmission unit, so that the leveling assembly is located at a first position or a second position relative to the instrument to be leveled, when the leveling assembly is located at the first position, the instrument to be leveled can swing freely within the range of the adjustment angle by taking the first rotating shaft and the second rotating shaft as axes, and when the leveling assembly is located at the second position, the leveling assembly is in rigid contact with the inner wall of the cylinder.

7. The device of claim 6, further comprising a control unit, wherein the control unit comprises a main control chip, an angle sensor and a position detection circuit, signal output terminals of the angle sensor and the position detection circuit are respectively connected with a signal input terminal of the main control chip, and a control terminal of the main control chip is connected with a control terminal of the driving unit.

8. The device of claim 7, wherein when the angle sensor detects that the tilt angle of the instrument to be leveled is within the adjustment angle range, the main control chip controls the driving unit to operate, and when the position detection circuit detects that the leveling component is located at the first position, the main control chip controls the driving unit to stop operating; when the instrument to be leveled is adjusted to a horizontal position, the main control chip controls the driving unit to act, and when the position detection circuit detects that the leveling component is located at the second position, the main control chip controls the driving unit to stop acting.

9. The device as claimed in claim 6, wherein the transmission unit is a screw, the linkage plate comprises a first mounting plate and a second mounting plate which are fixedly connected, an output shaft of the driving unit is connected with one end of the screw, and the other end of the screw is screwed with the first mounting plate; the driving unit is fixedly connected with the instrument to be leveled through a mounting rack and a guide pillar mounting plate, a guide hole is formed in the second mounting plate, a guide sleeve is mounted in the guide hole, the guide pillar mounting plate corresponds to the guide hole, the position of the guide hole is fixedly connected with a guide pillar, and the driving unit can drive the screw to rotate to drive the first mounting plate and the second mounting plate to move up and down along the guide pillar.

10. The device as claimed in claim 7, wherein the control unit further comprises an alarm unit, the signal output end of the main control chip is connected with the control end of the alarm circuit, and when the angle sensor detects that the inclination angle of the instrument to be leveled exceeds the angle adjusting range, the main control chip controls the alarm circuit to start alarm.

Technical Field

The invention relates to the technical field of measuring instruments, in particular to a large loop leveling device.

Background

Some measuring instruments need to be adjusted to a horizontal state before working to ensure normal working, and some measuring instruments are leveled manually.

For some measuring instruments with special installation positions, manual adjustment cannot be achieved. For example, the working environment of a deep well seismometer and an ocean bottom seismometer is severe, when the seismometer is thrown into a deep well or an ocean bottom, the manual adjustment of the horizontal state is difficult to realize, the initial throwing state of the seismometer is unknown, and the normal working state of the seismometer cannot be ensured if the seismometer is not leveled.

Disclosure of Invention

In view of this, the present invention provides a large loop leveling device, which can automatically level an instrument to be leveled and ensure a normal working state of the instrument to be leveled.

Based on the aim, the invention provides a large loop leveling device which is used for adjusting an instrument to be leveled to a horizontal state and comprises a cylinder and a leveling mechanism inside the cylinder;

the leveling mechanism comprises a leveling component, an adjusting ring component, a first adjusting shaft component and a second adjusting shaft component, and the leveling component is connected with the instrument to be leveled;

the instrument to be leveled is connected with the adjusting ring piece through the first adjusting shaft assembly, and the instrument to be leveled can rotate relative to the adjusting ring piece within an adjusting angle range by taking the first rotating shaft as a rotating shaft;

the adjusting ring piece is connected with the cylinder body through the second adjusting shaft assembly, and the adjusting ring piece can rotate in the adjusting angle range relative to the cylinder body by taking a second rotating shaft as a rotating shaft.

Optionally, two opposite ends of the side wall of the instrument to be leveled are connected with the first end and the second end of the adjusting ring member through one group of the first adjusting shaft assemblies respectively, and the axes of the two groups of the first adjusting shaft assemblies are the first rotating shaft.

Optionally, two opposite ends of the cylinder are respectively connected with the third end and the fourth end of the adjusting ring through one group of second adjusting shaft assemblies, and the axes of the two groups of second adjusting shaft assemblies are the second rotating shafts; the first rotating shaft and the second rotating shaft are perpendicular to each other.

Optionally, the inner space of the cylinder is spherical, and the edge surface of the adjusting mechanism corresponding to the inner space is an arc surface adapted to the spherical shape.

Optionally, the adjustment angle is 45 degrees.

Optionally, the leveling subassembly includes drive unit, linkage board, the drive unit accessible the drive unit drives linkage board up-and-down motion makes the leveling subassembly for treating that the leveling instrument is located first position or second position, works as the leveling subassembly is located during the first position, treat that the leveling instrument can first pivot and second pivot are the axle and are in freely swinging in the angle regulation scope, works as the leveling subassembly is located during the second position, the leveling subassembly with barrel inner wall rigid contact.

Optionally, the device further comprises a control unit, wherein the control unit comprises a main control chip, an angle sensor and a position detection circuit, signal output ends of the angle sensor and the position detection circuit are respectively connected with a signal input end of the main control chip, and a control end of the main control chip is connected with a control end of the driving unit.

Optionally, when the angle sensor detects that the inclination angle of the instrument to be leveled is within the angle adjusting range, the main control chip controls the driving unit to operate, and when the position detection circuit detects that the leveling component is located at the first position, the main control chip controls the driving unit to stop operating; when the instrument to be leveled is adjusted to a horizontal position, the main control chip controls the driving unit to act, and when the position detection circuit detects that the leveling component is located at the second position, the main control chip controls the driving unit to stop acting.

Optionally, the transmission unit is a screw, the linkage plate includes a first mounting plate and a second mounting plate which are fixedly connected, an output shaft of the driving unit is connected with one end of the screw, and the other end of the screw is screwed with the first mounting plate; the driving unit is fixedly connected with the instrument to be leveled through a mounting rack and a guide pillar mounting plate, a guide hole is formed in the second mounting plate, a guide sleeve is mounted in the guide hole, the guide pillar mounting plate corresponds to the guide hole, the position of the guide hole is fixedly connected with a guide pillar, and the driving unit can drive the screw to rotate to drive the first mounting plate and the second mounting plate to move up and down along the guide pillar.

Optionally, the control unit further comprises an alarm unit, the signal output end of the main control chip is connected with the control end of the alarm circuit, and when the angle sensor detects that the inclination angle of the instrument to be leveled exceeds the angle adjusting range, the main control chip controls the alarm circuit to start alarming.

The large loop leveling device provided by the invention has the advantages that:

1) according to the large-loop leveling device, an instrument to be leveled can rotate in an angle adjusting range relative to the adjusting ring piece by taking the first rotating shaft as a rotating shaft, and the whole instrument to be leveled and the adjusting ring piece can rotate in the angle adjusting range relative to the cylinder by taking the second rotating shaft as the rotating shaft; the leveling of the instrument to be leveled within the angle adjusting range can be realized, and the normal working state of the instrument to be leveled is ensured;

2) according to the large loop leveling device, the leveling component is detected and controlled through the control unit, when the large loop leveling device is placed at the installation position, automatic leveling of an instrument to be leveled can be achieved, after the large loop leveling device is adjusted to be in a horizontal state, the leveling component can be controlled to be in rigid contact with the inner wall of the cylinder, and the measurement accuracy of the instrument to be leveled is guaranteed;

3) when the instrument to be leveled is used for seismograph, angle adjustment within a 45-degree range can be realized, the requirement of freely putting and installing the seismograph at special installation positions such as a deep well, a seabed and an unmanned land area can be met, when the seismograph is installed at the special installation position, the seismograph can be guaranteed to work in a normal working state through automatic leveling, meanwhile, the measurement precision of the seismograph is guaranteed, good observation data are obtained, and the installation difficulty of the instrument is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic perspective view of a large loop leveling device according to an embodiment of the present invention, without showing an upper cylinder;

fig. 2 is a schematic perspective view of a large loop leveling device according to an embodiment of the present invention, without showing a lower cylinder;

FIG. 3 is a schematic cross-sectional view of an embodiment of the present invention with the leveling assembly in a spread-apart position;

FIG. 4 is a schematic cross-sectional view of an embodiment of the present invention with the leveling assembly in a retracted state;

FIG. 5 is a schematic view of a part of the structure of a leveling mechanism according to an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of the structure shown in FIG. 5;

FIG. 7 is a schematic view of a portion of a leveling assembly according to an embodiment of the present invention;

fig. 8A and 8B are schematic perspective views of a leveling mechanism according to an embodiment of the present invention;

FIG. 9 is a schematic plan view of the structure of FIG. 8A;

fig. 10 is a top view of a portion of a leveling assembly in accordance with an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.

It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, and they are not described in any more detail in the following embodiments.

As shown in fig. 1 to 4, an embodiment of the present invention provides a large loop leveling device, which can automatically level an instrument to be leveled and ensure that the instrument to be leveled works in a normal state. The large loop leveling device comprises a cylinder and a leveling mechanism inside the cylinder;

the leveling mechanism comprises a leveling component, an adjusting ring component, a first adjusting shaft component and a second adjusting shaft component, and the leveling component is connected with an instrument to be leveled;

the instrument to be leveled is connected with the adjusting ring piece through the first adjusting shaft assembly, and can rotate in an adjusting angle range relative to the adjusting ring piece by taking the first rotating shaft as a rotating shaft;

the adjusting ring piece is connected with the cylinder body through a second adjusting shaft assembly, and the adjusting ring piece can rotate in an adjusting angle range relative to the cylinder body by taking the second rotating shaft as a rotating shaft.

After the large-loop leveling device is placed at the installation position, an instrument to be leveled can rotate around the first rotating shaft in an angle adjusting range relative to the adjusting ring piece so as to adjust the angle of the instrument to be leveled on the first rotating shaft, the instrument to be leveled and the adjusting ring piece can rotate around the second rotating shaft in an angle adjusting range relative to the cylinder so as to adjust the angle of the instrument to be leveled on the second rotating shaft, and the instrument to be leveled can be adjusted to be in a horizontal position through angle adjustment, so that the instrument to be leveled can be guaranteed to work in a normal working state.

As shown in fig. 3-7, the leveling assembly includes a driving unit 15, a transmission unit, and a linkage plate, the driving unit 15 is connected to the linkage plate through the transmission unit, the driving unit 15 can drive the linkage plate to move up and down through the transmission unit, so that the leveling assembly is located at a first position or a second position relative to the instrument 13 to be leveled, when the leveling assembly is located at the first position relative to the instrument 13 to be leveled, the leveling assembly is in a retracted state, the leveling assembly and the instrument 13 to be leveled can freely swing to adjust an angle, when the leveling assembly is located at the second position relative to the instrument 13 to be leveled, the leveling assembly is located in an extended state, and the leveling assembly abuts against the inner wall of the cylinder and cannot move.

The device to be leveled 13 is connected to the adjusting ring 9 via a first adjusting axle assembly. Two opposite ends of the side wall of the instrument to be leveled 13 are respectively connected with the first end and the second end of the adjusting ring member 9 through a group of first adjusting shaft assemblies. The first adjusting shaft assembly comprises a first bearing seat 12, a first bearing 11 and a first bearing pin 10; taking a set of first adjusting shaft assemblies as an example, the first bearing seat 12 is fixedly connected with the side wall of the instrument to be leveled 13, one end of the first bearing pin 10 is connected with the first bearing seat 12 through the first bearing 11, and the other end of the first bearing pin 10 is connected with the first end of the adjusting ring member 9. If the axes of the two first bearing pins 10 of the two sets of first adjusting shaft assemblies are defined as a first rotating shaft, which is an X-axis (as shown in fig. 1, 6 and 7), when the leveling assembly is in the retracted state, the instrument 13 to be leveled can rotate relative to the adjusting ring 9 within the adjusting angle range by taking the first rotating shaft as a rotating shaft.

And the two opposite ends of the cylinder are respectively connected with the third end and the fourth end of the adjusting ring piece 9 through a group of second adjusting shaft assemblies. The second adjusting shaft assembly comprises a second bearing seat 19, a second bearing 20 and a second bearing pin 22; taking a group of second adjusting shaft assemblies as an example, the third end of the adjusting ring 9 is connected with the cylinder body through a second bearing pin 22, a second bearing 20 and a second bearing seat 19. If the axes of the two second bearing pins 22 of the two sets of second adjusting shaft assemblies are defined as a second rotating shaft, which is a Y-axis (as shown in fig. 1 and 3), when the leveling assembly is in the retracted state, the whole of the instrument 13 to be leveled and the adjusting ring 9 can rotate relative to the cylinder body within the adjusting angle range by using the second rotating shaft as a rotating shaft. It should be noted that the first rotating shaft and the second rotating shaft are perpendicular to each other.

As shown in the figure, screw rod 1 can be selected for use to the drive unit, and the linkage board includes first mounting panel 2 and second mounting panel 7, and drive unit's output shaft is connected with the one end of screw rod 1, and the other end of screw rod 1 closes with first mounting panel 2 soon, first mounting panel 2 and second mounting panel 7 fixed connection, and drive unit 15's output shaft rotates, drives screw rod 1 and rotates, can drive first mounting panel 2 and second mounting panel 7 along screw rod 1 up-and-down motion.

The driving unit 15 is fixedly connected with the guide pillar mounting plate 8 through the mounting frame 4 and the connecting piece 41, and the guide pillar mounting plate 8 is fixedly connected with the instrument 13 to be leveled. The second mounting plate 7 is provided with a guide hole, a guide sleeve 6 is mounted in the guide hole, a guide pillar 5 is fixedly connected to the guide pillar mounting plate 8 at a position corresponding to the guide hole, and the driving unit 15 can drive the screw rod 1 to rotate to drive the first mounting plate 2 and the second mounting plate 7 to move up and down along the guide pillar 5.

Specifically, the driving unit 15 is fixedly connected with the mounting frame 4, an output shaft of the driving unit 15 is inserted into a matching hole of the screw rod 1, the output shaft is tightly fitted and fastened with the screw rod 1, and the screw rod 1 is connected with the mounting frame 4 through the third bearing and the third bearing seat 3. The first mounting plate 2 and the second mounting plate 7 are fixedly connected through screws 23. The mounting frame 4 is fixedly connected with the first surface of the guide pillar mounting plate 8 through a screw 41, and the second surface of the guide pillar mounting plate 8 is fixedly connected with the instrument 13 to be leveled; as shown in fig. 10, three guide holes are equidistantly formed in the second mounting plate 7, the three guide sleeves 6 are respectively inserted into the three guide holes, the guide holes and the guide sleeves 6 are in interference fit, the first surface of the guide post mounting plate 8 is connected with the three guide posts 5 at positions corresponding to the three guide holes, and the guide posts 5 and the guide sleeves 6 are in clearance fit, so that the instrument to be leveled and the leveling assembly can move up and down without moving left and right.

When an output shaft of the driving unit 15 rotates, the screw rod 1 is driven to rotate, the first mounting plate 2 and the second mounting plate 7 are driven to move up and down along the screw rod 1, and the first mounting plate 2 and the second mounting plate 7 move up and down along the guide post 5, as shown in fig. 4, when the first mounting plate 2 and the second mounting plate 7 move up to the first position, the leveling component is in a withdrawing state, the instrument 13 to be leveled can freely adjust the angle within the angle adjusting range, that is, the instrument 13 to be leveled can rotate around the first rotating shaft within the angle adjusting range relative to the adjusting ring 9 to adjust the angle of the instrument 13 to be leveled on the first rotating shaft, and the whole instrument 13 to be leveled and the adjusting ring 9 can rotate around the second rotating shaft within the angle adjusting range relative to the cylinder to adjust the angle of the instrument 13 to be leveled on the second rotating shaft; as shown in fig. 3, when the first mounting plate 2 and the second mounting plate 7 move downward to the second position, the leveling component is in an opening state, the leveling component is in rigid contact with the inner wall of the cylinder and is pressed tightly, the leveling component is not movable with the instrument 13 to be leveled, external vibration can be transmitted to the instrument to be leveled through the cylinder, and the measurement accuracy of the instrument to be leveled is ensured.

As shown in fig. 8A and 8B, the large loop leveling device further includes a control unit, the control unit includes a main control chip, an angle sensor, and a position detection circuit, signal output terminals of the angle sensor and the position detection circuit are respectively connected to a signal input terminal of the main control chip, a control terminal of the main control chip is connected to a control terminal of the driving unit, and a signal output terminal of a detection circuit for detecting a horizontal state of the instrument to be leveled inside the instrument 13 is connected to the signal input terminal of the main control chip; the angle sensor is arranged on the instrument 13 to be leveled or the leveling component and is used for detecting the inclination angle of the large-loop leveling device. The position detection circuit comprises a limiting end circuit 17 and a moving end circuit 16, the limiting end circuit 17 is arranged on the instrument 13 to be leveled or the guide pillar mounting plate 8, and the moving end circuit 16 is arranged on the leveling component, for example, the second mounting plate 7.

The working process of the large loop leveling device of the embodiment of the invention is that when the large loop leveling device is placed at an installation position, the angle sensor detects the angle of an instrument 13 to be leveled, when the inclination angle of the instrument 13 to be leveled is detected to be within an adjusting angle range, the main control chip controls the driving unit 15 to rotate forward, the leveling component moves towards the instrument 13 to be leveled, in the moving process, when the moving end circuit 16 detects the limit end circuit 17, the main control chip controls the driving unit 15 to stop acting, at the moment, the leveling component 13 is located at a first position relative to the instrument 13 to be leveled, the leveling component is in a withdrawing state, in the state, the instrument 13 to be leveled and the leveling component are suspended and can freely swing within the adjusting angle range under the action of gravity, the instrument 13 to be leveled can freely rotate by taking a first rotating shaft as an axis, the instrument 13 to be leveled and the adjusting ring piece 9 freely rotate relative to a cylinder by taking a second rotating, so that the instrument 13 to be leveled is adjusted to a horizontal position.

When a detection circuit used for detecting the horizontal state of the instrument to be leveled in the instrument 13 to be leveled detects that the instrument 13 to be leveled is adjusted to a horizontal position, the main control chip controls the driving unit 15 to rotate reversely, the leveling component moves in a direction away from the instrument 13 to be leveled, in the moving process, when the moving end circuit 16 detects the limit end circuit 17, the main control chip controls the driving unit 15 to stop acting, at the moment, the leveling component is located at a second position relative to the instrument 13 to be leveled, the leveling component is in an opening state, in the state, the leveling component abuts against the inner wall of the cylinder, the instrument 13 to be leveled, which is adjusted to the horizontal position, is in rigid contact with the cylinder through the leveling component, external vibration is transmitted to the instrument 13 to be leveled through the cylinder, and the measurement accuracy of the.

As shown in fig. 1-4, in some embodiments, the cylinder includes an upper cylinder 21 and a lower cylinder 18, and the upper cylinder 21 is fixedly connected to the lower cylinder 18. In order to ensure that the whole volume of the device is small and simultaneously ensure that an instrument 13 to be leveled in the cylinder can freely swing and adjust the angle, the inner wall of the cylinder is arc-shaped, and correspondingly, the edge surface of the leveling mechanism corresponding to the inner wall of the cylinder is correspondingly arc-shaped; as shown in the figure, the instrument 13 to be leveled is provided with a top plate 14, and the top plate 14 and the edge surface of the first mounting plate 2 are in an arc shape corresponding to the inner wall of the cylinder.

In an embodiment, the inner space of the cylinder formed by the upper cylinder and the lower cylinder is spherical, the diameter of the sphere is D, the top plate 14 and the edge surface of the first mounting plate 2 are arc surfaces adapted to the inner wall of the cylinder, as shown in fig. 1-4 and 9, the intersection point of the first rotating shaft (X axis) and the second rotating shaft (Y axis) is located at the center O of the sphere, and the to-be-leveled instrument 13 can freely swing in the spherical space by using the first rotating shaft and the second rotating shaft as rotating shafts to adjust the angle.

In some embodiments, as shown in fig. 3, the adjustment angle θ is 45 degrees, and when the leveling component is in the retracted state, the instrument 13 to be leveled can freely swing within the range of 45 degrees to realize the angle adjustment. When the large loop leveling device is placed at the installation position, if the angle between the outer surface A of the cylinder and the horizontal plane is within the range of 45 degrees, the large loop leveling device can automatically adjust the angle, so that the adjusted instrument 13 to be leveled is adjusted to be in a horizontal working state. When the instrument to be leveled is an earthquake timer, the angle can be adjusted within the range of 45 degrees, and the free throwing installation requirement of the earthquake timer installed at special installation positions such as deep wells, seabed and land unmanned areas is met.

Optionally, the control unit further includes an alarm circuit, a signal output end of the main control chip is connected to a control end of the alarm circuit, when the large loop leveling device is placed at the installation position, and when the angle sensor detects that the inclination angle of the instrument 13 to be leveled exceeds the angle adjusting range, the main control chip controls the alarm circuit to start an alarm, for example, the device needs to be placed again, so that the device can realize the function of automatically adjusting the angle.

In one embodiment, as shown in fig. 8A, the position detection circuit includes a position limiting circuit 17 and a moving end circuit 16, the moving end circuit 16 is provided with a moving metal probe, and the position limiting circuit 17 is provided with an upper position limiting metal probe and a lower position limiting metal probe. When the leveling component moves upwards until the movable metal probe is contacted with the upper limiting metal probe, a loop of the position detection circuit is conducted, the position detection circuit sends an upper limiting position signal to the main control chip, the main control chip controls the driving unit to stop acting, and the leveling component is in a withdrawing state; when the leveling component moves downwards until the movable metal probe is contacted with the lower limiting metal probe, a loop of the position detection circuit is conducted, the position detection circuit sends a lower limiting position signal to the main control chip, the main control chip controls the driving unit to stop acting, and the leveling component is tightly abutted against the inner wall of the cylinder body and is in rigid contact with the inner wall of the cylinder body.

In some embodiments, the driving unit may be a reduction motor.

The apparatus of the foregoing embodiment is used to implement the corresponding method in the foregoing embodiment, and has the beneficial effects of the corresponding method embodiment, which are not described herein again.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

In addition, well known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown within the provided figures for simplicity of illustration and discussion, and so as not to obscure the invention. Furthermore, devices may be shown in block diagram form in order to avoid obscuring the invention, and also in view of the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform within which the present invention is to be implemented (i.e., specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the invention, it should be apparent to one skilled in the art that the invention can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative instead of restrictive.

While the present invention has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art in light of the foregoing description. For example, other memory architectures (e.g., dynamic ram (dram)) may use the discussed embodiments.

The embodiments of the invention are intended to embrace all such alternatives, modifications and variances that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.