CN114485333A

CN114485333A - Bridge displacement detection device and detection method

Info

Publication number: CN114485333A
Application number: CN202210123064.5A
Authority: CN
Inventors: 张冬冬
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-10
Filing date: 2022-02-10
Publication date: 2022-05-13

Abstract

The invention relates to the technical field of bridge detection, and discloses a bridge displacement detection device and a detection method, which comprises a telescopic plate, one side of the expansion plate is provided with a measuring structure, the measuring structure comprises a measuring block, an indicating block, a moving groove, a dial gauge, a pointer, a moving block, a connecting block, a rolling block, a connecting block, a bottom plate, a sliding block and a screw rod, when a rotary force is applied to the screw rod, the screw rod can control the sliding block to horizontally and longitudinally move along the groove, the bridge displacement detection device and the detection method provided by the invention have the advantages that the distance between the bridge pier and one side of the bridge is measured by the measuring structure through the lead screw and the measuring block, the bridge pier and one side of the bridge are taken as the midpoint, then the lead screw is rotated to control the measuring block to move to increase the detection distance, so that the measurement result is more accurate, and the offset distance is obtained through data of the pointer on the scale marks.

Description

Bridge displacement detection device and detection method

Technical Field

The invention relates to the technical field of bridge detection, in particular to a bridge displacement detection device and a detection method.

Background

The bridge application test means is used for detecting the whole or main parts of the bridge structure, knowing the working state and the bearing capacity of the bridge structure and the parts thereof so as to verify the design and calculation theory of the bridge structure, check the construction quality, find problems in application and the like, and mainly comprises the tests of strain, displacement and vibration. And (5) strain testing. The stress is calculated by measuring the strain or other values are derived from the linear relationship between the stress and the strain within a certain range. For the steel bridge, the transmission of internal force and secondary stress, the stress concentration state, the stress distribution of the bridge deck and the coaction condition of the bridge deck and the main beam can be known, and the stress state of the node part can be known. The stress distribution of concrete and steel bars, the neutral axis position of the cross section and the like can be known for the steel bar (or prestressed) concrete bridge. For a multi-girder bridge, the load distribution coefficient of each girder can be measured. And (6) displacement testing. Mainly measures bridge span deflection, transverse displacement, longitudinal displacement, pier top horizontal displacement, concrete crack change and the like. And (5) vibration testing. Mainly, the vibration characteristics (amplitude, wave form, frequency or period, damping, etc.) of a bridge (bridge span, bridge pier) and the maximum amplitude and impact coefficient in the case of dynamic load are measured.

Because most of the existing small and medium-sized bridges lack professional actual measuring tools when detecting the bridge displacement, the electronic detection device is greatly influenced by the relationship of environment, position and the like when in use, the measured data are easy to form deviation, the accurate purpose can be achieved by measuring for many times, and the use is very troublesome.

Disclosure of Invention

Technical problem to be solved

The problem of middle-size and small-size bridge displacement detection inconvenience is solved.

Disclosure of Invention

In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme: a bridge displacement detection device and a bridge displacement detection method comprise a telescopic plate, wherein a measurement structure is arranged on one side of the telescopic plate and comprises a measurement block, an indication block, a moving groove, a dial gauge, a pointer, a moving block, a connecting block, a rolling block, a joining block, a bottom plate, a sliding block and a lead screw, when a rotating force is applied to the lead screw, the lead screw can control the sliding block to horizontally and longitudinally move along a groove, when the sliding block moves, the rolling block can control the moving block to horizontally and longitudinally move along the moving groove after being stressed, and the lead screw and the moving block are matched for use.

Preferably, one side fixedly connected with bottom plate of expansion plate, the top of bottom plate inner wall is rotated and is connected with the lead screw, be provided with the slider on the lead screw, one side of slider runs through the bottom plate and extends to the outside of bottom plate, one side fixedly connected with measuring block of slider.

Preferably, the bottom of the front face of the measuring block is fixedly connected with a scale mark, the front face of the measuring block is provided with a moving groove, the front face of the moving groove is connected with a moving block in a sliding manner, one side of the moving block is fixedly connected with an indicating block, the bottom of the indicating block is fixedly connected with a pointer, and the pointer is matched with the scale mark.

Preferably, the whole fixed connection of movable block has the connecting block, one side of connecting block fixedly is connected with the connection piece, the shape of connection piece is the U-shaped, one side of connection piece rotates and is connected with the rolling piece.

Preferably, the bottom of lead screw runs through the bottom plate and extends to the outside of bottom plate, the bottom fixedly connected with of lead screw is followed the driving wheel, the positive bottom fixedly connected with motor of bottom plate, the bottom fixedly connected with power wheel of motor, the surface of power wheel is through belt and the surface looks transmission connection from the driving wheel.

Preferably, a fixing screw penetrates through one side of the front face of the expansion plate, a bearing plate is fixedly connected to the other side of the expansion plate, a connecting plate is fixedly connected to one side of the bearing plate, a fixing plate is fixedly connected to the top and the bottom of one side of the connecting plate, a threaded rod penetrates through the top of the fixing plate, a rotating disc is fixedly connected to the top of the threaded rod, and a handle is rotatably connected to one side of the top of the rotating disc.

Preferably, the bottom of threaded rod is provided with clamping structure, clamping structure includes bottom plate, buffer board, spring, rotatory piece, pivot, subplate, slipmat, mainboard and splint, when giving when exerting an extrusion force for the mainboard, the combined subplate of mainboard can take place deformation and carry out parcel formula centre gripping to the object, when the subplate atress can use and rotatory piece rotation department as the centre of a circle rotation.

Preferably, the bottom fixedly connected with splint of threaded rod, the equal fixedly connected with in front side and the rear side of splint bottom both sides is rotatory piece, the bottom of rotatory piece is rotated and is connected with the pivot, the bottom fixedly connected with subplate of pivot.

Preferably, the bottom of the clamping plate is fixedly connected with a base, the bottom of the base is fixedly connected with a buffer plate, springs are fixedly connected to the front side and the rear side of the bottom of the buffer plate, a main plate is fixedly connected to the bottom of the springs, two sides of the main plate are rotatably connected with one side of each of two auxiliary plates, and anti-slip pads are fixedly connected to the bottoms of the main plate and the auxiliary plates.

Compared with the prior art, the embodiment of the invention provides that one side of the expansion plate is provided with the measuring structure, the measuring structure can measure the distance between one side of the bridge and the bridge with the bridge pier as the midpoint through the matching between the screw rod and the measuring block, then the screw rod is rotated to control the measuring block to move to increase the detection distance, so that the measuring result is more accurate, the offset data can be obtained through the distance moved by the pointer on the scale mark, and the speed of later correction is increased, because the mechanical measuring method can more conveniently and more intuitively obtain the bridge offset data compared with the electronic detection, the measurement is more convenient, the electronic detection is greatly influenced by the relationship of environment, position and the like, the measured data is easy to form deviation, multiple times of measurement are needed to achieve the accurate purpose, the use is very troublesome, the length of the expansion plate and the moving block can be adjusted, and the expansion plate can adjust the length according to different sizes of the measured bridge, the movable block can be according to the different regulation length of bridge both sides height, both cooperate together can the holistic adjustability of greatly increased device, the opposite side of expansion plate still is provided with clamping structure, clamping structure can accomplish through the cooperation between mainboard and two subplates and carry out the centre gripping to the pier of different shapes, when meetting circular pier, circular pier let the mainboard backward movement form the indent to extrusion mainboard and become the overlay type centre gripping, just so can press from both sides more firmly, two subplates atress when meetting square pier, three board becomes a straight board and carries out the centre gripping to it, avoid the pier of different shapes to cause the unstable influence measuring effect of centre gripping, mainboard and subplate shanghai are provided with the slipmat, the slipmat can increase and pier frictional force between the surface, the more firm stability of centre gripping like this.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a measurement configuration according to the present invention;

FIG. 3 is a front view of the external structure of the base plate of the present invention;

FIG. 4 is a schematic view of the internal structure of the base plate according to the present invention;

FIG. 5 is a schematic view of a measuring block structure according to the present invention;

FIG. 6 is a schematic view of a clamping structure according to the present invention;

fig. 7 is a schematic diagram of the main board structure of the present invention.

In the figure: 1. a connecting plate; 2. a bearing plate; 3. a retractable plate; 4. a measurement structure; 401. a measuring block; 402. an indication block; 403. a moving groove; 404. scale marking; 405. a pointer; 406. a moving block; 407. connecting blocks; 408. a rolling block; 409. a joining block; 410. a base plate; 411. a slider; 412. a screw rod; 5. a handle; 6. rotating the disc; 7. a threaded rod; 8. a clamping structure; 801. a base; 802. a buffer plate; 803. a spring; 804. rotating the block; 805. a rotating shaft; 806. a sub-board; 807. a non-slip mat; 808. a main board; 809. a splint; 9. a fixing plate; 10. a motor; 11. a belt; 12. fixing screws; 13. a driven wheel; 14. a power wheel.

Detailed Description

So that the objects, technical solutions and advantages of the embodiments of the present disclosure will be more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the word "comprising" or "comprises", and the like, in this disclosure is intended to mean that the elements or items listed before that word, include the elements or items listed after that word, and their equivalents, without excluding other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

As shown in fig. 1 to 7, the bridge displacement detecting device and the detecting method provided by the present invention include a telescopic plate 3, one side of the telescopic plate 3 is provided with a measuring structure 4, the measuring structure 4 includes a measuring block 401, an indicating block 402, a moving groove 403, a scale 404, a pointer 405, a moving block 406, a connecting block 407, a rolling block 408, a connecting block 409, a bottom plate 410, a slider 411 and a screw 412, when a rotating force is applied to the screw 412, the screw 412 can control the slider 411 to move horizontally and longitudinally along the groove, when the slider 411 moves, the rolling block 408 is forced to control the moving block 406 to move horizontally and longitudinally along the moving groove 403, the screw 412 is used in cooperation with the moving block 406, the measuring structure 4 can measure a distance between a bridge pier and one side of a bridge by cooperation between the screw 412 and the measuring block 401, and then the screw 412 is rotated to control the measuring block 401 to move to increase a detection distance, so that a measurement result is more accurate, and a distance is increased by the pointer 405 moving on the scale 404 And the offset data is obtained, so that the later correction speed is increased.

One side fixedly connected with bottom plate 410 of expansion plate 3, the top of bottom plate 410 inner wall is rotated and is connected with lead screw 412, is provided with slider 411 on the lead screw 412, and one side of slider 411 runs through bottom plate 410 and extends to the outside of bottom plate 410, and one side fixedly connected with of slider 411 measures piece 401.

The positive bottom fixedly connected with scale mark 404 of measuring block 401, shifting chute 403 has been seted up in the front of measuring block 401, the front sliding connection of shifting chute 403 has the movable block 406, one side fixedly connected with of movable block 406 instructs piece 402, the bottom fixedly connected with pointer 405 of instructing piece 402, pointer 405 and scale mark 404 looks adaptation, expansion plate 3 and movable block 406 all adjustable length, expansion plate 3 can be according to the different adjustable length of measuring the bridge size, movable block 406 can be according to the different adjustable length of bridge both sides height, both cooperations are in the same place can the holistic adjustability of greatly increased device.

The whole fixed connection of movable block 406 has connecting block 407, and one side fixed connection of connecting block 407 has linking piece 409, and linking piece 409 is the shape of U font, and one side rotation of linking piece 409 is connected with rolling block 408.

The bottom of the screw rod 412 penetrates through the bottom plate 410 and extends to the outside of the bottom plate 410, the driven wheel 13 is fixedly connected to the bottom of the screw rod 412, the motor 10 is fixedly connected to the bottom of the front face of the bottom plate 410, the power wheel 14 is fixedly connected to the bottom of the motor 10, and the surface of the power wheel 14 is in transmission connection with the surface of the driven wheel 13 through the belt 11.

Fixed screw 12 runs through on the positive one side of expansion plate 3, and the opposite side fixedly connected with load board 2 of expansion plate 3, one side fixedly connected with connecting plate 1 of load board 2, the top and the equal fixedly connected with fixed plate 9 in bottom of 1 one side of connecting plate, threaded rod 7 runs through at the top of fixed plate 9, the top fixedly connected with rotary disk 6 of threaded rod 7, one side rotation at rotary disk 6 top is connected with handle 5.

The bottom of threaded rod 7 is provided with clamping structure 8, clamping structure 8 includes bottom plate 801, buffer board 802, spring 803, rotatory piece 804, pivot 805, subplate 806, slipmat 807, mainboard 808 and splint 809, when exerting an extrusion force for mainboard 808, mainboard 808 combination subplate 806 can take place deformation and carry out parcel formula centre gripping to the object, can use when subplate 806 atress to rotate as the centre of a circle with rotatory piece 804 rotation department, clamping structure 8 can accomplish to the pier of different shapes through the cooperation between mainboard 808 and two subplates 806 and carry out the centre gripping, when meetting circular pier, extrusion mainboard 808 of circular pier lets mainboard 808 remove backward to form the indent and become the overlay type centre gripping, just so can press from both sides more firmly, two subplates 806 atress when meetting square pier, three board becomes a straight board and carries out the centre gripping to it.

The bottom of threaded rod 7 is fixedly connected with splint 809, and the front side and the rear side of splint 809 bottom both sides all are fixedly connected with rotatory piece 804, and the bottom of rotatory piece 804 is rotated and is connected with pivot 805, and the bottom fixedly connected with subplate 806 of pivot 805.

Bottom fixedly connected with base 801 of splint 809, base 801's bottom fixedly connected with buffer board 802, the front side and the equal fixedly connected with spring 803 in rear side of buffer board 802 bottom, the bottom fixedly connected with mainboard 808 of two springs 803, the both sides of mainboard 803 are rotated mutually with one side of two subplates 806 and are connected, the equal fixedly connected with slipmat 807 in bottom of mainboard 803 and subplate 806, slipmat 807 can increase and pier frictional force between the surface, the more firm stability of centre gripping like this.

The working principle and the using process of the invention are as follows: when the device is used for measuring a bridge body, the device needs to be fixed on a bridge pier firstly, when the device is installed, the angle between a measuring block 401 and one side of the bridge body needs to be ensured to be 90 degrees, then a fixing plate 9 is placed on two sides of the bridge pier, a rear rotating handle 5 is placed, the handle 5 drives a selecting rotating disc 6 to rotate, the selecting rotating disc 6 drives a threaded rod 7 to rotate, the threaded rod 7 drives a clamping plate 8 to move towards one side after being stressed, the clamping plate 8 drives a main plate 808 and an auxiliary plate 806 to move towards the bridge pier until the main plate 808 and the auxiliary plate 806 firmly clamp and fix the bridge pier, when the bridge pier is clamped to be a round bridge pier, the main plate 808 preferentially receives extrusion force, the main plate 808 which receives the extrusion force can extrude a spring 803 and drive two auxiliary plates 806 to rotate to form an inward concave shape by taking a rotating connection part with the rotating block 804 as a circle center, the contact surface of the cylindrical bridge pier is increased to enable the clamping to be firmer, and when the clamped bridge pier is square, the main plate 808 and the auxiliary plates 806 cannot deform, the three surfaces are contacted with the surfaces of piers for clamping at the same time, after the connecting plate 1 is fixed, a user can adjust the length of the expansion plate 3 according to the distance from the piers to one side of a bridge body, when the length of the expansion plate 3 is adjusted, the fixing screws 12 are loosened to adjust the length of the expansion plate 3, the length of the expansion plate 3 is adjusted until the moving block 406 moves to a half position of the moving groove 403 on the measuring block 401, then the user pushes the moving block 406 manually, the moving block 406 drives the indicating block 402 and the connecting block 407 to move after being stressed, the connecting block 407 drives the connecting block 409 to move, the connecting block 409 drives the rolling block 408 to move so as to enable one side of the rolling block 408 to be attached to the plane of one side of the bridge body, the user records the value indicated by the pointer 405 on the scale mark 404, then the motor 10 is turned on, the motor 10 controls the power wheel 14 to rotate, the power wheel 14 drives the driven wheel 13 to rotate through the belt 1, the driven wheel 13 drives the screw rod 412 to rotate, the screw rod 412 drives the sliding block 411 to move horizontally, the sliding block 411 drives the measuring block 401 to move, the rolling block 408 at the moment can move along the plane of one side of the bridge body, a user observes the numerical value of the pointer 405 moving on the scale mark 404 and records the numerical value, then the numerical value of the other side of the bridge body is measured according to the method and compares the two numerical values, the comparison error is within a safety range or the same as the safety range, the deviation of the bridge body does not occur, if the deviation is not the same, the deviation of the section of the bridge body can be known, a user corrects and maintains the bridge body in the later period.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.

Claims

1. A bridge displacement detection device and a detection method comprise a telescopic plate (3), and are characterized in that: one side of the expansion plate (3) is provided with a measuring structure (4), the measuring structure (4) comprises a measuring block (401), an indicating block (402), a moving groove (403), a dial gauge (404), a pointer (405), a moving block (406), a connecting block (407), a rolling block (408), a connecting block (409), a bottom plate (410), a sliding block (411) and a screw rod (412), when a rotating force is applied to the screw rod (412), the screw rod (412) can control the sliding block (411) to horizontally and longitudinally move along the groove, when the sliding block (411) moves, the rolling block (408) is stressed to control the moving block (406) to horizontally and longitudinally move along the moving groove (403), and the screw rod (412) is matched with the moving block (406) for use.

2. The bridge displacement detection device and the detection method according to claim 1, wherein the bridge displacement detection device comprises: one side fixedly connected with bottom plate (410) of expansion plate (3), the top of bottom plate (410) inner wall is rotated and is connected with lead screw (412), be provided with slider (411) on lead screw (412), one side of slider (411) runs through bottom plate (410) and extends to the outside of bottom plate (410), one side fixedly connected with measuring block (401) of slider (411).

3. The bridge displacement detection device and the detection method according to claim 1, wherein the bridge displacement detection device comprises: the measuring device comprises a measuring block (401), a scale mark (404) is fixedly connected to the bottom of the front face of the measuring block (401), a moving groove (403) is formed in the front face of the measuring block (401), a moving block (406) is slidably connected to the front face of the moving groove (403), an indicating block (402) is fixedly connected to one side of the moving block (406), a pointer (405) is fixedly connected to the bottom of the indicating block (402), and the pointer (405) is matched with the scale mark (404).

4. The bridge displacement detection device and the detection method according to claim 1, wherein the bridge displacement detection device comprises: the whole fixed connection of movable block (406) has connecting block (407), one side fixed connection of connecting block (407) has linking piece (409), the shape of linking piece (409) is the U font, one side rotation of linking piece (409) is connected with rolling block (408).

5. The bridge displacement detection device and the detection method according to claim 1, wherein the bridge displacement detection device comprises: the bottom of lead screw (412) runs through bottom plate (410) and extends to the outside of bottom plate (410), the bottom fixedly connected with of lead screw (412) follows driving wheel (13), the positive bottom fixedly connected with motor (10) of bottom plate (410), the bottom fixedly connected with power wheel (14) of motor (10), the surface of power wheel (14) is through belt (11) and the surface looks transmission connection from driving wheel (13).

6. The bridge displacement detection device and the detection method according to claim 1, wherein the bridge displacement detection device comprises: fixed screw (12) are run through to the positive one side of expansion plate (3), opposite side fixedly connected with load board (2) of expansion plate (3), one side fixedly connected with connecting plate (1) of load board (2), the equal fixedly connected with fixed plate (9) in top and bottom of connecting plate (1) one side, threaded rod (7) is run through at the top of fixed plate (9), the top fixedly connected with rotary disk (6) of threaded rod (7), one side rotation at rotary disk (6) top is connected with handle (5).

7. The bridge displacement detection device and the detection method according to claim 1, wherein the bridge displacement detection device comprises: the bottom of threaded rod (7) is provided with clamping structure (8), clamping structure (8) include bottom plate (801), buffer board (802), spring (803), rotatory piece (804), pivot (805), subplate (806), slipmat (807), mainboard (808) and splint (809), give when mainboard (808) applys an extrusion force, mainboard (808) combination subplate (806) can take place to deform and carry out parcel formula centre gripping to the object, works as during subplate (806) atress can use and rotate as the centre of a circle with rotatory piece (804) rotation department.

8. The bridge displacement detection device and method according to claim 7, wherein: the bottom fixedly connected with splint (809) of threaded rod (7), the equal fixedly connected with in front side and the rear side of splint (809) bottom both sides is rotatory piece (804), the bottom of rotatory piece (804) is rotated and is connected with pivot (805), the bottom fixedly connected with subplate (806) of pivot (805).

9. The bridge displacement detection device and method according to claim 7, wherein: the bottom fixedly connected with base (801) of splint (809), the bottom fixedly connected with buffer board (802) of base (801), the equal fixedly connected with spring (803) of front side and the rear side of buffer board (802) bottom, two the bottom fixedly connected with mainboard (808) of spring (803), the both sides of mainboard (803) are rotated mutually with one side of two subplates (806) and are connected, the equal fixedly connected with slipmat (807) in bottom of mainboard (803) and subplate (806).