Bridge offset detection device

Abstract

The utility model discloses a bridge offset detection device which comprises a support, the support is fixedly arranged on a bridge pier, a plurality of sets of detection assemblies are arranged on the support, each detection assembly comprises a first liquid pipe and a second liquid pipe, and the bottoms of the first liquid pipes and the bottoms of the second liquid pipes are communicated through communicating pipes. Liquid is arranged in the first liquid pipe and the second liquid pipe, a displacement piece capable of moving in the axial direction of the first liquid pipe is arranged in the first liquid pipe, and the top end of the displacement piece is connected with the bottom face of the bridge. The displacement part is used for extruding liquid in the first liquid pipe into the second liquid pipe when the bridge deviates; and the diameter of the second liquid pipe is smaller than that of the first liquid pipe. According to the utility model, the detection assembly is arranged to amplify the infinitesimal displacement of the bridge, so that the infinitesimal offset of the bridge can be accurately reflected.

Description

Technical Field

[0001] This utility model relates to the field of detection device technology, and in particular to a bridge offset detection device. Background Technology

[0002] During bridge use, the bridge structure may be affected by various factors, leading to bridge displacement. Therefore, bridge displacement detection has become a crucial task. Bridge displacement detection involves a comprehensive inspection of all parts of the bridge, including the main structure, ancillary facilities, and deck system, to assess the overall performance and safety of the bridge. Bridge displacement detection devices are required for this operation.

[0003] The patent with publication number CN222689056U provides a bridge offset detection device. Since it relies on the linear displacement of the guide rod for detection, it is only suitable for detection when the displacement is large. If the bridge has a small displacement, its detection results are inaccurate or it cannot even detect small displacements. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a bridge offset detection device. By setting up detection components, the small displacement of the bridge can be amplified, thereby accurately reflecting the small offset of the bridge.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A bridge offset detection device includes a support frame, which is fixedly mounted on a bridge pier. The support frame is equipped with multiple detection components. Each detection component includes a first liquid pipe and a second liquid pipe, which are connected at their bottoms by a connecting pipe. The first and second liquid pipes contain liquid. The first liquid pipe contains a displacement element that can move along the axial direction of the first liquid pipe. The top end of the displacement element is connected to the bottom surface of the bridge.

[0007] The displacement element is used to squeeze the liquid in the first liquid pipe into the second liquid pipe when the bridge shifts.

[0008] The diameter of the second liquid tube is smaller than the diameter of the first liquid tube.

[0009] Furthermore, the liquid is water.

[0010] Furthermore, the displacement member includes a piston rod, the bottom end of which is provided with a piston adapted to the first liquid pipe.

[0011] Furthermore, the diameter ratio of the second liquid tube to the first liquid tube is 1 / 5 to 1 / 2.

[0012] Furthermore, the support is made of stainless steel.

[0013] Furthermore, the support includes an arc-shaped plate and straight plates disposed at both ends of the arc-shaped plate. The arc-shaped plate is fixed to the bridge pier, and the detection component is disposed on the straight plate.

[0014] Furthermore, the curved plate and the straight plate are an integrated structure.

[0015] Furthermore, the arc-shaped plate is fixed to the bridge pier by bolts.

[0016] The beneficial effects of this utility model are:

[0017] This invention can amplify the minute displacement of a bridge by setting up a detection component, thereby accurately reflecting the minute offset of the bridge. Attached Figure Description

[0018] Figure 1 This is a front view of the bridge offset detection device in an embodiment of this utility model;

[0019] Figure 2 This is a side view of the bridge offset detection device;

[0020] Figure 3 This is a top view of the bridge pier;

[0021] Figure 4 for Figure 2 Enlarged view of point A in the middle section;

[0022] In the diagram, 1 is the support; 2 is the pier; 3 is the bridge body; 4 is the first liquid pipe; 5 is the second liquid pipe; 6 is the piston rod; 7 is the piston; 8 is the arc plate; and 9 is the straight plate. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] See Figures 1-4 This utility model provides a technical solution: Example

[0025] A bridge offset detection device includes a support 1 made of stainless steel, which is fixedly mounted on a bridge pier 2. The support 1 is provided with multiple sets of detection components, each of which includes a first liquid pipe 4 and a second liquid pipe 5. The bottoms of the first liquid pipe 4 and the second liquid pipe 5 are connected by a connecting pipe. Water is contained in the first liquid pipe 4 and the second liquid pipe 5. A displacement member that can move along the axial direction of the first liquid pipe 4 is provided in the first liquid pipe 4, and the top of the displacement member is connected to the bottom surface of the bridge.

[0026] The displacement device is used to squeeze the water in the first liquid pipe 4 into the second liquid pipe 5 when the bridge shifts.

[0027] The diameter ratio of the second liquid pipe 5 to the first liquid pipe 4 is 1 / 5 to 1 / 2. When the diameter ratio of the second liquid pipe 5 to the first liquid pipe 4 is 1:2, when the bridge displacement is 1, the corresponding displacement of the piston rod 6 is 1. At this time, the liquid level in the second liquid pipe 5 rises by 4 (the cross-sectional area of ​​the first liquid pipe 4 is 4πr², the cross-sectional area of ​​the second liquid pipe 5 is πr², v=s*h, therefore when the liquid level in the first liquid pipe 4 drops by 1, the liquid level in the second liquid pipe 5 rises by 4); similarly, when the diameter ratio of the second liquid pipe 5 to the first liquid pipe 4 is 1:5, when the bridge displacement is 1, the corresponding displacement of the piston rod 6 is 1. At this time, the liquid level in the second liquid pipe 5 rises by 25.

[0028] The displacement component includes a piston rod 6, and the bottom end of the piston rod 6 is provided with a piston 7 that is adapted to the first liquid pipe 4.

[0029] The support 1 includes an integrated arc-shaped plate 8 and straight plates 9 disposed at both ends of the arc-shaped plate 8. The arc-shaped plate 8 is fixed to the bridge pier 2 by bolts, and the detection component is disposed on the straight plate 9.

[0030] Among them, 1, Figure 1 From left to right, the length of bridge body 3 (box girder, etc.) is shown. Figure 2 1. The width of bridge body 3 is shown from left to right. 2. Ten sets of detection components are set, with five sets distributed on each side of bridge pier 2. 3. When bridge body 3 does not shift, the liquid levels in the first liquid pipe 4 and the second liquid pipe 5 are the same. At this time, the liquid level in the second liquid pipe 5 is the 0 reference plane. Scale lines are set sequentially from bottom to top for reading. 4. In this embodiment, the diameter ratio of the second liquid pipe 5 to the first liquid pipe 4 is 1:2.

[0031] Working principle: When the bridge body 3 deviates, the bridge body 3 squeezes the top of the piston rod 6, and the piston rod 6 is displaced downward by force, thereby squeezing the water in the first liquid pipe 4 into the second liquid pipe 5 through the piston 7.

[0032] Since the diameter ratio of the second liquid pipe 5 to the first liquid pipe 4 is 1:2, if the liquid level in the first liquid pipe 4 drops by 1 mm, the liquid level in the second liquid pipe 5 will rise by 4 mm, thereby amplifying the displacement of the bridge body 3.

[0033] This invention can amplify the minute displacement of a bridge by setting up a detection component, thereby accurately reflecting the minute offset of the bridge.

[0034] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A bridge offset detection device, comprising a support frame, the support frame being fixedly mounted on a bridge pier, and the support frame being provided with multiple sets of detection components, characterized in that: The detection assembly includes a first liquid tube and a second liquid tube, the bottoms of the first liquid tube and the second liquid tube are connected by a connecting tube, the first liquid tube and the second liquid tube contain liquid, and the first liquid tube contains a displacement member that can move along the axial direction of the first liquid tube, the top end of the displacement member is connected to the bottom surface of the bridge. The displacement element is used to squeeze the liquid in the first liquid pipe into the second liquid pipe when the bridge shifts. The diameter of the second liquid tube is smaller than the diameter of the first liquid tube.

2. The bridge offset detection device according to claim 1, characterized in that: The liquid is water.

3. The bridge offset detection device according to claim 1, characterized in that: The displacement component includes a piston rod, and the bottom end of the piston rod is provided with a piston adapted to the first liquid pipe.

4. The bridge offset detection device according to claim 1, characterized in that: The diameter ratio of the second liquid tube to the first liquid tube is 1 / 5 to 1 / 2.

5. The bridge offset detection device according to claim 1, characterized in that: The support frame is made of stainless steel.

6. The bridge offset detection device according to claim 5, characterized in that: The support includes an arc-shaped plate and straight plates disposed at both ends of the arc-shaped plate. The arc-shaped plate is fixed to the bridge pier, and the detection component is disposed on the straight plate.

7. The bridge offset detection device according to claim 6, characterized in that: The curved plate and the straight plate are an integrated structure.

8. The bridge offset detection device according to claim 7, characterized in that: The arc-shaped plate is fixed to the bridge pier by bolts.

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