Deflection detection support for low plate girder

Abstract

The utility model relates to the technical field of beam deflection detection, and aims to solve the problems that a mounting frame needs to be fixed on a bridge body when an existing detector is fixed, time and labor are wasted in disassembly and assembly, and a bridge can be damaged to a certain extent. The utility model provides a low plate girder deflection detection support. The low plate girder deflection detection support comprises a detector, a positioning assembly and a lifting rod. The lifting rod is vertically arranged at the top of the positioning assembly; a leveling assembly is arranged at the end, away from the positioning assembly, of the lifting rod. A mounting platform is arranged at the top of the leveling assembly; the detector is arranged at one end, far away from the leveling assembly, of the mounting platform; the beam deflection detection support provided by the utility model is good in accuracy, convenient to disassemble and assemble and convenient to flexibly transfer, and does not cause damage to a bridge body.

Description

Technical Field

[0001] This utility model relates to the field of beam deflection detection technology, and more specifically, to a deflection detection bracket for low-profile beams. Background Technology

[0002] In bridge engineering, beam deflection refers to the elastic deformation, or vertical displacement, of a bridge structure (such as main beams and bridge decks) under load (such as vehicles, pedestrians, and its own weight) along a direction perpendicular to the axis. This deformation reflects the bridge's stiffness, load-bearing capacity, and safety, and is one of the core indicators in design and maintenance. Currently, the deflection of low-slab beams is typically measured using mechanical dial indicators / micrometers. To ensure accuracy, a mounting frame needs to be pre-installed on the bridge foundation, and the measuring instrument is then fixed to the frame before the beam deflection is measured. However, while pre-installing the mounting frame provides high accuracy, it is time-consuming and labor-intensive, and further disassembly after testing can cause damage to the bridge structure.

[0003] Based on the above description, there is an urgent need for a convenient and accurate deflection testing bracket suitable for low-profile beams. Utility Model Content

[0004] The purpose of this utility model is to provide a low-profile beam deflection detection bracket, which aims to solve the technical problem that the existing detectors need to be fixed on the bridge body, which is time-consuming and laborious to install and remove, and will cause certain damage to the bridge.

[0005] The embodiments of this utility model are achieved through the following technical solutions:

[0006] A deflection detection bracket for low-profile beams includes a detector, a positioning component, and a lifting rod; the lifting rod is erected on top of the positioning component; a leveling component is provided at the end of the lifting rod away from the positioning component; an installation platform is provided on top of the leveling component; and the detector is located at the end of the installation platform away from the leveling component.

[0007] Preferably, the leveling assembly includes a connecting cylinder, a housing, and multiple lifting columns; the housing is connected to the end of the lifting rod away from the positioning assembly via the connecting cylinder; the multiple lifting columns are arranged in a ring around the end of the housing near the mounting platform; the lifting columns are connected to the mounting platform.

[0008] Preferably, the mounting platform is provided with multiple limiting slots for embedding multiple lifting columns.

[0009] Preferably, the mounting platform has a connecting groove recessed at one end away from the housing; the bottom of the detector has a connecting rod; and the connecting rod is embedded in the connecting groove.

[0010] Preferably, the end of the connecting rod away from the detector is provided with a plurality of first wedges; the plurality of first wedges are spaced apart; and the sidewall of the connecting groove is provided with a plurality of second wedges corresponding to the plurality of first wedges.

[0011] Preferably, the positioning assembly includes a connecting seat and multiple legs; the multiple legs are located at the bottom of the connecting seat; and the lifting rod is connected to the top of the connecting seat.

[0012] Preferably, one end of each of the multiple legs is connected to the connecting seat; the other end of each of the multiple legs extends at an angle away from the connecting seat.

[0013] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0014] This invention uses a positioning component to position the lifting rod, which is then used to adjust the detection height of the detector. The detector is then installed on an installation platform, and a leveling component is used to fine-tune and level the platform, thereby ensuring the accuracy of the detector when performing beam deflection testing. The detector uses a dial indicator or micrometer commonly used in the field, selected according to the test range. Compared with the prior art, which uses a separate positioning frame to install the detector, the beam deflection testing bracket provided in this embodiment has better accuracy, is easy to assemble and disassemble, and is easy to move flexibly without damaging the bridge structure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is an exploded view of the present invention.

[0017] Icons: 1-Detector, 2-Positioning component, 21-Connecting seat, 22-Outrigger, 3-Lifting rod, 4-Leveling component, 41-Connecting cylinder, 42-Housing, 43-Lifting column, 5-Installation platform, 6-First wedge, 7-Second wedge, 8-Limiting groove. Detailed Implementation

[0018] The specific implementation method is described below with reference to the accompanying drawings.

[0019] Example 1

[0020] Please see Figures 1 to 2 This utility model provides the following technical solution: a low-profile beam deflection detection bracket, suitable for beam deflection detection in low-profile bridges.

[0021] Specifically, such as Figure 1 and Figure 2As shown, a low-profile beam deflection detection bracket includes a detector 1, a positioning component 2, and a lifting rod 3; the lifting rod 3 is erected on top of the positioning component 2; a leveling component 4 is provided at the end of the lifting rod 3 away from the positioning component 2; an installation platform 5 is provided on the top of the leveling component 4; and the detector 1 is located at the end of the installation platform 5 away from the leveling component 4.

[0022] In this embodiment, the lifting rod 3 is positioned by the positioning component 2, and the lifting rod 3 is further used to adjust the detection height of the detector 1, so that the detector 1 is installed on the installation platform 5. The installation platform 5 is then finely adjusted and leveled by the leveling component 4, thereby ensuring the accuracy of the detector 1 when performing beam deflection detection. The detector uses a dial indicator or micrometer commonly used in the art, and the specific selection is based on the test range. Compared with the prior art, which uses a separate positioning frame to install the detector 1, the beam deflection detection bracket provided in this embodiment has better accuracy, is easy to disassemble and assemble, and is easy to move flexibly.

[0023] Specifically, such as Figure 1 and Figure 2 As shown, the leveling component 4 includes a connecting cylinder 41, a housing 42, and multiple lifting columns 43; the housing 42 is connected to the end of the lifting rod 3 away from the positioning component 2 via the connecting cylinder 41; the multiple lifting columns 43 are arranged in a ring around the end of the housing 42 near the mounting platform 5; the lifting columns 43 are connected to the mounting platform 5. The mounting platform 5 is provided with multiple limiting grooves 8 for the multiple lifting columns 43 to be embedded.

[0024] In this embodiment, both the lifting column 43 and the lifting rod 3 are electric lifting rods; a pressure sensor is installed in the housing 42 to determine the levelness by the force distribution of multiple lifting columns 43. Each lifting column 43 is equipped with an independent motor drive module. After receiving the height difference data through the PLC controller, the lifting speed and lifting height of each column are dynamically adjusted to achieve leveling of the detector 1 on the installation platform 5. Combined with the positioning component 2 for positioning and the fine adjustment of the leveling component 4, the detector 1 can perform accurate beam deflection detection.

[0025] In this embodiment, the end of the mounting platform 5 away from the housing 42 is provided with a connecting groove; the bottom of the detector 1 is provided with a connecting rod; the connecting rod is embedded in the connecting groove; wherein the connecting rod and the connecting groove can adopt a connection method that is easy to disassemble and assemble, such as screw connection or snap connection commonly used in the prior art.

[0026] Specifically, such as Figure 2 As shown, a plurality of first wedges 6 are arranged around the end of the connecting rod away from the detector 1; the plurality of first wedges 6 are spaced apart; the side wall of the connecting groove is provided with a plurality of second wedges 7 corresponding to the plurality of first wedges 6.

[0027] In this embodiment, by using multiple first wedges 6 and multiple second wedges 7 in combination, it is not only convenient to quickly assemble and disassemble the detector 1, but also to ensure that the detector 1 is not easily misaligned during detection.

[0028] Specifically, such as Figure 1 As shown, the positioning component 2 includes a connecting base 21 and multiple support legs 22; the multiple support legs 22 are located at the bottom of the connecting base 21; the lifting rod 3 is connected to the top of the connecting base 21. One end of each of the multiple support legs 22 is connected to the connecting base 21; the other end of each of the multiple support legs 22 extends obliquely away from the connecting base 21.

[0029] In this embodiment, three outriggers 22 are preferred to form a stable triangular structure, which can also be applied to more installation sites.

Claims

1. A deflection detection bracket for low-profile beams, comprising a detector (1), characterized in that: It includes a positioning component (2) and a lifting rod (3); the lifting rod (3) is erected on the top of the positioning component (2); a leveling component (4) is provided at the end of the lifting rod (3) away from the positioning component (2); an installation platform (5) is provided on the top of the leveling component (4); and a detector (1) is located at the end of the installation platform (5) away from the leveling component (4).

2. The low-profile beam deflection detection bracket according to claim 1, characterized in that: The leveling component (4) includes a connecting cylinder (41), a housing (42), and multiple lifting columns (43); the housing (42) is connected to the end of the lifting rod (3) away from the positioning component (2) through the connecting cylinder (41); the multiple lifting columns (43) are arranged in a ring around the end of the housing (42) near the mounting platform (5); the lifting columns (43) are connected to the mounting platform (5).

3. The low-profile beam deflection detection bracket according to claim 2, characterized in that: The installation platform (5) is provided with multiple limiting slots (8) for multiple lifting columns (43) to be embedded.

4. The low-profile beam deflection detection bracket according to claim 2 or 3, characterized in that: The mounting platform (5) has a connecting groove recessed at one end away from the housing (42); the detector (1) has a connecting rod at its bottom; the connecting rod is embedded in the connecting groove.

5. The low-profile beam deflection detection bracket according to claim 4, characterized in that: The connecting rod is provided with a plurality of first wedges (6) at one end away from the detector (1); the plurality of first wedges (6) are spaced apart; the groove sidewall of the connecting groove is provided with a plurality of second wedges (7) corresponding to the plurality of first wedges (6).

6. The low-profile beam deflection detection bracket according to any one of claims 1 to 3, characterized in that: The positioning component (2) includes a connecting seat (21) and multiple legs (22); the multiple legs (22) are located at the bottom of the connecting seat (21); the lifting rod (3) is connected to the top of the connecting seat (21).

7. The low-profile beam deflection detection bracket according to claim 6, characterized in that: One end of each of the multiple legs (22) is connected to the connecting seat (21); the other end of each of the multiple legs (22) extends obliquely away from the connecting seat (21).

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