CN217276769U

CN217276769U - Bridge vibration amplitude detection mechanism

Info

Publication number: CN217276769U
Application number: CN202221294153.8U
Authority: CN
Inventors: 安振伟; 赵睿; 唐超; 刘伟伟
Original assignee: Guizhou Transportation Planning Survey and Design Academe Co Ltd
Current assignee: Guizhou Transportation Planning Survey and Design Academe Co Ltd
Priority date: 2022-05-27
Filing date: 2022-05-27
Publication date: 2022-08-23
Anticipated expiration: 2032-05-27

Abstract

The utility model discloses a bridge vibration amplitude detection mechanism, which comprises a support column and a connecting rod, wherein a hole with an open end and a closed end is arranged on the support column along the length direction of the support column, one end of the connecting rod extends into the hole, a spring is arranged between the connecting rod and the wall of the hole, the end surface of the connecting rod in the hole is provided with a displacement sensor, and the deviated ends of the support column and the connecting rod are respectively propped against a bridge and a pier; the detection mechanism can automatically detect the vibration amplitude of the bridge in real time, and can ensure the accuracy of detection data.

Description

Bridge vibration amplitude detection mechanism

Technical Field

The utility model relates to a bridge detects technical field, in particular to bridge vibration range detection mechanism.

Background

The bridge is generally a structure which is erected on rivers, lakes and seas and allows vehicles, pedestrians and the like to smoothly pass through. In order to adapt to the modern high-speed developed traffic industry, bridges are also extended to be constructed to span mountain stream, unfavorable geology or meet other traffic needs, so that the buildings are convenient to pass. The bridge generally comprises an upper structure, a lower structure, a support and an auxiliary structure, and after the bridge is built, workers are still required to regularly detect the quality of the bridge so as to ensure the use safety of the bridge.

The phenomenon of damping structure and body ageing damage can appear at current bridge in the use to need the staff to detect the vibration amplitude of bridge, but current detection device can not real-timely detect the amplitude of bridge, influences the accuracy that detects data, causes measurement personnel's erroneous judgement easily.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a bridge vibration amplitude detection mechanism can carry out real-time detection to the vibration amplitude of bridge automatically, can ensure the accuracy of detected data.

The utility model aims at realizing through the following technical scheme:

the utility model provides a bridge vibration range detection mechanism, includes support column and connecting rod, be equipped with one end opening, the closed hole of one end along its length direction on the support column, connecting rod one end stretches into downtheholely, be equipped with the spring between connecting rod and roof of hole wall, downthehole connecting rod terminal surface is equipped with displacement sensor, support column and connecting rod deviate from the end mutually and lean on respectively on bridge and pier.

Further, the end of the connecting rod outside the hole is vertically provided with a second supporting plate with a larger size than the connecting rod.

Furthermore, a limiting part capable of limiting the connecting rod outside the hole is arranged between the connecting rod end and the support column.

Further, the second backup pad is the rectangle, the locating part includes buckle and draw-in groove, the draw-in groove is two to set up respectively and deviates from connecting rod side both ends and the relative semicircle trough of opening in the second backup pad, the buckle is two and sets up respectively in support column connecting rod end both sides, the buckle passes through the cutting ferrule and rotates the setting on the support column, the buckle is the L type, is equipped with the checkpost that can block into the draw-in groove on the L type buckle horizontal part top surface.

Still further, the support column deviates from the connecting rod end and is vertically provided with a first support plate with a size larger than that of the connecting rod end.

The utility model has the advantages that:

the utility model discloses a bridge vibration amplitude detection mechanism, when the bridge vibrates, interval change between the roof in downthehole connecting rod end terminal surface and support column upper hole, displacement sensor detects this interval, this interval is the amplitude of bridge, when the vibration is eliminated, support column and connecting rod resume the normal position under the effect of spring, this detection mechanism can carry out real-time detection to the vibration amplitude of bridge automatically, can ensure the accuracy of detected data, displacement sensor sets up downtheholely, can ensure its security.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.

Drawings

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings, wherein:

fig. 1 is a front sectional view of the present invention.

Fig. 2 is a partially enlarged schematic view of the position limiting element in fig. 1.

Fig. 3 is a partially enlarged schematic view of the displacement sensor of fig. 1.

Fig. 4 is a schematic structural view of the side of the second support plate facing away from the connecting rod in fig. 1.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are for purposes of illustration only and are not intended to limit the scope of the present invention.

As shown in fig. 1-4, a bridge vibration amplitude detection mechanism comprises a support column 1 and a connecting rod 2, wherein a hole 11 with an open end and a closed end is formed in the support column 1 along the length direction of the support column, one end of the connecting rod 2 extends into the hole 11, a spring 15 is arranged between the connecting rod 2 and the top wall of the hole 11, a displacement sensor 23 is arranged on the end face of the connecting rod 2 in the hole 11, and the deviated ends of the support column 1 and the connecting rod 2 are respectively abutted against a bridge and a pier.

This detection mechanism is when using, the manual detection mechanism of taking of staff is vertical to be placed between pier and bridge, it extrudees pier and bridge respectively to have guaranteed through spring 15 elasticity that support column 1 and connecting rod 2 are located pier and bridge, the positional stability between the bridge that support column 1 and connecting rod 2 are located pier and bridge has been guaranteed, when the bridge takes place vibrations, connecting rod 2 moves in hole 11 is inside, make the position that connecting rod 2 is located hole 11 change, and displacement sensor 23 detects its displacement, thereby the mesh of detecting bridge vibration range has been reached, when this detection mechanism has guaranteed displacement sensor 23's safety in utilization, guaranteed to detect the vibration range of bridge for a long time, the accuracy of detected data has been guaranteed, avoid causing detection personnel's erroneous judgement.

The outer walls of the support columns 1 and the outer walls of the connecting rods 2 are designed in a cylindrical shape, the support columns 1 achieve the purpose of adjusting the overall length of equipment through the connecting rods 2 and the springs 15, and the equipment can adapt to different piers and bridges.

The end of the connecting rod 2 outside the hole 11 is vertically provided with a second support plate 21 having a size larger than that thereof.

The second support plate 21 improves the contact area between the connecting rod 2 and the pier, and ensures the stability of the placement of the equipment.

A limiting part which can limit the connecting rod 2 outside the hole 11 is arranged between the end of the connecting rod and the supporting column 1.

When the detection mechanism is not used, the connecting rod 2 can be prevented from sliding out of the hole in the supporting column 1.

Second backup pad 21 is the rectangle, and the locating part includes buckle 13 and draw-in groove 22, and draw-in groove 22 sets up respectively for two and deviates from connecting rod 2 side both ends and the relative semicircle recess of opening in second backup pad 21, buckle 13 is two and sets up respectively in 2 end both sides of connecting rod of support column 1, buckle 13 rotates through cutting ferrule 12 and sets up on support column 1, buckle 13 is the L type, is equipped with the checkpost that can block into draw-in groove 22 on the 13 horizontal part top surface of L type buckle.

The clamp on the rotary buckle 13 can be separated from the clamping groove 22, and after the clamp is separated from the slot, the detection mechanism is arranged between the bridge pier and the bridge for bridge amplitude detection.

The end of the support column 1 facing away from the connecting rod 2 is vertically provided with a first support plate 14 of a larger dimension than it.

The diameter of first backup pad 14 is greater than the diameter of support column 1, and first backup pad 14 has improved the area of contact between support column 1 and the bridge, has guaranteed equipment and has placed stability.

The worker manually breaks the buckle 13 to enable the buckle 13 to rotate through the clamping sleeve 12, the buckle 13 is separated from the inside of the clamping groove 22, so that the connecting rod 2 is separated from the control, the spring 15 pushes the connecting rod 2 to move away from the end of the supporting column to the outside of the hole 11, the worker manually takes the detection mechanism to place between the pier and the bridge, the first supporting plate 14 and the second supporting plate 21 are guaranteed to respectively extrude the pier and the bridge through the elastic force of the spring 15, the position stability of the supporting column and the connecting rod between the pier and the bridge is guaranteed, when the bridge vibrates, the connecting rod 2 moves inside the hole 11, the position of the connecting rod 2 inside the hole 11 is changed, the displacement sensor 23 detects the moving distance of the displacement sensor, the purpose of detecting the vibration amplitude of the bridge is achieved, the detection mechanism guarantees the use safety of the displacement sensor 23, and meanwhile guarantees that the vibration amplitude of the bridge can be detected for a long time, the accuracy of the detection data is ensured, and the misjudgment of detection personnel is avoided.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a bridge vibration amplitude detection mechanism which characterized in that: including support column (1) and connecting rod (2), be equipped with one end opening, one end closed hole (11) along its length direction on support column (1), connecting rod (2) one end is stretched into in hole (11), be equipped with spring (15) between connecting rod (2) and hole (11) roof, connecting rod (2) terminal surface in hole (11) is equipped with displacement sensor (23), support column (1) and connecting rod (2) deviate from the end mutually and lean on respectively on bridge and pier.

2. The bridge vibration amplitude detection mechanism of claim 1, wherein: a second supporting plate (21) which is larger than the hole (11) in size is vertically arranged at the end of the connecting rod (2) outside the hole.

3. The bridge vibration amplitude detection mechanism of claim 2, wherein: a limiting part which can limit the connecting rod (2) outside the hole (11) and the supporting column (1) is arranged between the connecting rod and the supporting column.

4. The bridge vibration amplitude detection mechanism of claim 3, wherein: second backup pad (21) is the rectangle, the locating part includes buckle (13) and draw-in groove (22), draw-in groove (22) set up respectively for two and deviate from connecting rod (2) side both ends and the relative semicircle trough of opening in second backup pad (21), buckle (13) are two and set up respectively in connecting rod (2) end both sides of support column (1), buckle (13) rotate through cutting ferrule (12) and set up on support column (1), buckle (13) are the L type, are equipped with the checkpost that can block into draw-in groove (22) on L type buckle (13) horizontal part top surface.

5. The bridge vibration amplitude detection mechanism according to any one of claims 1 to 4, characterized in that: the end of the support column (1) departing from the connecting rod (2) is vertically provided with a first support plate (14) with a size larger than that of the support column.