Bridge lower structure stress detection device

Abstract

The utility model discloses a bridge lower structure stress detection device, which comprises an annular base, an annular supporting seat, a vertical plate and a top plate, the annular base is arranged below the annular supporting seat, a plurality of first cylinders are arranged between the annular base and the annular supporting seat, and the top surface of the annular supporting seat is provided with mounting grooves opposite to the first cylinders. Pressure sensors are installed in the installation grooves, the detection ends of the pressure sensors protrude out of the installation grooves, the vertical plate is perpendicularly arranged on one side of the annular base, and a plurality of second air cylinders are installed between the vertical plate and the annular base. The bridge deck stress detection device is simple in structure, the annular base can be rotated to a bridge pier through the driving mechanism, the pressure sensor can abut against the bottom of a bridge deck through the first air cylinder, therefore, stress detection can be directly conducted on the bridge deck, and efficiency and safety are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge detection, in particular to a stress detection device for a structure under a bridge. Background Art

[0002] A bridge generally refers to a structure built across rivers, lakes, and seas to enable vehicles and pedestrians to pass smoothly. To adapt to the modern rapidly developing transportation industry, bridges are also extended to buildings that are built to cross mountain streams, poor geology, or meet other transportation needs to make travel more convenient. Bridges are generally composed of superstructure, substructure, supports, and ancillary structures. The superstructure, also known as the span structure, is the main structure for crossing obstacles. The substructure includes abutments, piers, and foundations. The supports are force transmission devices installed at the supporting locations of the span structure and piers or abutments. Ancillary structures refer to bridgehead slabs, conical slope protection, bank protection, diversion projects, etc.

[0003] During the process of building and using a bridge, it is often necessary to perform stress testing on the built bridge, which requires the use of a stress testing device. The existing testing device has a simple design structure and is cumbersome to operate. It is necessary to climb to the top of the pier, and the pier is high, which makes the testing process more dangerous and affects the efficiency of the testing. Obviously, it can no longer meet people's usage needs. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a stress detection device for a structure under a bridge, which can perform stress detection on the bridge deck and solve the problems mentioned in the background technology.

[0005] The utility model is realized through the following technical scheme: a bridge understructure force detection device, comprising an annular base, an annular support seat, a vertical plate and a top plate, the annular base is arranged below the annular support seat, a plurality of first cylinders are installed between the annular base and the annular support seat, mounting grooves are provided on the top surface of the annular support seat opposite to the first cylinders, pressure sensors are installed in the mounting grooves, detection ends of the pressure sensors protrude from the mounting grooves, the vertical plate is vertically arranged on one side of the annular base, a plurality of second cylinders are installed between the vertical plate and the annular base, the top plate is installed on the top surface of the vertical plate, and a driving mechanism for driving the top plate, the vertical plate and the annular base to rotate is installed at one end of the top plate.

[0006] As a preferred technical solution, the annular base is divided into two parts to form a left half base and a right half base, and a plurality of torsion spring hinges are installed at one end of the left half base and the right half base. The right half base protrudes near the torsion spring hinge to form a pressure-bearing part, and a third cylinder is installed near the torsion spring hinge on the left plate base. The piston rod of the third cylinder passes between the torsion spring hinges and contacts the outer side surface of the extrusion part.

[0007] As a preferred technical solution, the annular support seat is divided into two parts to form a left half support seat and a right half support seat, and the left half support seat and the right half support seat are fixedly connected to the annular base through a first cylinder.

[0008] As a preferred technical solution, the driving mechanism includes a U-shaped plate, a brake motor and multiple shafts. The U-shaped plate is sleeved on one end of the top plate away from the vertical plate. Bearings are embedded on the inner side of the U-shaped plate. One end of the shaft is installed in the inner ring of the bearing, and the other end is installed on the side of the top plate. The brake motor is installed on one side of the U-shaped plate. The rotating shaft of the brake motor passes through the U-shaped plate and is fixedly connected to the shaft on one side. Multiple fixing holes are provided on the bottom surface of the U-shaped plate.

[0009] As a preferred technical solution, multiple weight-reducing openings are provided on the top plate and the vertical plates.

[0010] The beneficial effects of the utility model are as follows: the utility model has a simple structure, can be directly installed on an engineering vehicle, and can rotate the annular base to the bridge pier through a driving mechanism, and can make the pressure sensor rest against the bottom of the bridge deck through the first cylinder, so that the force on the bridge deck can be directly detected, which greatly increases efficiency and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a side view of the utility model;

[0014] Figure 3 It is a schematic diagram of the structure of the utility model after removing the right half of the support seat.

[0015] Among them, 1. left half base; 2. right half base; 3. left half support base; 4. right half support base; 5. pressure sensor; 6. extrusion part; 7. first cylinder; 8. second cylinder; 9. vertical plate; 11. top plate; 12. U-shaped plate; 13. shaft rod; 14. brake motor; 15. third cylinder; 16. slot. DETAILED DESCRIPTION

[0016] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0017] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0018] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, a bridge substructure force detection device of the utility model comprises an annular base, an annular support seat, a vertical plate 9 and a top plate 11, wherein the annular base is arranged below the annular support seat, a plurality of first cylinders 7 are installed between the annular base and the annular support seat, a mounting groove is provided on the top surface of the annular support seat opposite to the first cylinder 7, a pressure sensor 5 is installed in the mounting groove, and the detection end of the pressure sensor 5 protrudes from the mounting groove, the vertical plate 9 is vertically arranged on one side of the annular base, a plurality of second cylinders 8 are installed between the vertical plate 9 and the annular base, the top plate 11 is installed on the top surface of the vertical plate 9, and a driving mechanism for driving the top plate 11, the vertical plate 9 and the annular base to rotate is installed at one end of the top plate 11.

[0020] In this embodiment, the annular base is divided into two parts to form a left half base 1 and a right half base 2. A plurality of torsion spring hinges are installed at one end of the left half base 1 and the right half base 2. The right half base 2 protrudes near the torsion spring hinge to form a pressure-bearing portion. A third cylinder 15 is installed near the torsion spring hinge at the left plate base. The piston rod of the third cylinder 15 passes between the torsion spring hinges and contacts the outer side surface of the extrusion portion 6.

[0021] In this embodiment, the annular support seat is divided into two parts to form a left half support seat 3 and a right half support seat 4, and the left half support seat 3 and the right half support seat 4 are fixedly connected to the annular base through a first cylinder 7;

[0022] Among them, slots 16 are provided on the end faces of the left half base and the left half support seat, and the end faces of the right half base and the right half support seat are protruding opposite the slots to form plug-in parts, which are inserted into the slots. The plug-in parts and the slots increase the up-and-down stability between the left half base and the right half base, and also increase the up-and-down stability between the left half support seat and the right half support seat.

[0023] In this embodiment, the driving mechanism includes a U-shaped plate 12, a brake motor 14 and multiple shafts 13. The U-shaped plate 12 is sleeved on one end of the top plate 11 away from the vertical plate 9. Bearings are embedded on the inner side surface of the U-shaped plate 12. One end of the shaft 13 is installed in the inner ring of the bearing, and the other end is installed on the side of the top plate 11. The brake motor 14 is installed on one side of the U-shaped plate 12. The rotating shaft of the brake motor 14 passes through the U-shaped plate 12 and is fixedly connected to the shaft 13 on one side. A plurality of fixing holes are provided on the bottom surface of the U-shaped plate 12.

[0024] In this embodiment, a plurality of weight-reducing openings are provided on the top plate 11 and the vertical plates 9, thereby reducing the material and weight of the top plate and the vertical plates.

[0025] When in use, the U-shaped plate can be fixed in the bucket of the engineering vehicle by fixing bolts. The device can be located inside the bucket. When in use and moved to a position that needs to be detected, it can act as a brake motor. The brake motor can drive the shaft rod to rotate. The rotation of the shaft rod drives the top plate, the vertical plate, the second cylinder and the annular base until the annular base moves to one side of the bridge pier.

[0026] After the above is completed, the third cylinder can be started to retract the piston rod of the third cylinder. After losing the squeezing of the piston rod, the right plate base can be automatically opened outward by the twisting of the torsion spring hinge, and the right half support seat can be driven to open synchronously. After opening, the second cylinder can be activated, and the left plate base and the left half support seat can be driven to move to the top surface of the pier through the second cylinder, and occupy the left half of the top surface. After moving into place, the third cylinder can be started to extend the piston rod of the third cylinder, and the right half base can be pushed through the piston rod, so that the right half base rotates inward with the torsion spring hinge as the center until it is closed, so that the right half base and the right half support seat can occupy the right half of the top surface, so as to increase the comprehensiveness of the detection;

[0027] In order to make the pressure sensor contact with the bottom surface of the bridge deck, the first cylinder can be started, and the annular support seat can be driven to move upward by the first cylinder until the pressure sensor is in contact with the bottom surface of the bridge deck. The pressure sensor can detect the pressure on the bridge deck at all times, thereby judging the safety of the bridge. The data detected by the pressure sensor can be transmitted to the display terminal through a data line, and the display terminal can be held by the workers so that they can see the detection data at all times.

[0028] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A bridge structure stress detection device, characterized in that: The invention comprises an annular base, an annular support base, a vertical plate (9) and a top plate (11), wherein the annular base is arranged below the annular support base, a plurality of first cylinders (7) are installed between the annular base and the annular support base, a mounting groove is arranged on the top surface of the annular support base directly opposite to the first cylinder (7), a pressure sensor (5) is installed in each mounting groove, and a detection end of the pressure sensor (5) protrudes from the mounting groove, the vertical plate (9) is vertically arranged on one side of the annular base, a plurality of second cylinders (8) are installed between the vertical plate (9) and the annular base, the top plate (11) is installed on the top surface of the vertical plate (9), and a driving mechanism for driving the top plate (11), the vertical plate (9) and the annular base to rotate is installed on one end of the top plate (11).

2. The device for detecting stress on a structure under a bridge according to claim 1, characterized in that: The annular base is divided into two parts to form a left half base (1) and a right half base (2). A plurality of torsion spring hinges are installed at one end of the left half base (1) and the right half base (2). The right half base (2) protrudes near the torsion spring hinge to form a pressure-bearing portion. A third cylinder (15) is installed near the torsion spring hinge at the left plate base. The piston rod of the third cylinder (15) passes between the torsion spring hinges and contacts the outer side surface of the extrusion portion (6).

3. The device for detecting stress on a structure under a bridge according to claim 1, characterized in that: The annular support seat is divided into two parts to form a left half support seat (3) and a right half support seat (4), and the left half support seat (3) and the right half support seat (4) are fixedly connected to the annular base via a first cylinder (7).

4. The device for detecting stress on a structure under a bridge according to claim 1, characterized in that: The driving mechanism comprises a U-shaped plate (12), a brake motor (14) and a plurality of shaft rods (13). The U-shaped plate (12) is sleeved on one end of the top plate (11) away from the vertical plate (9). Bearings are embedded on the inner side surface of the U-shaped plate (12). One end of the shaft rod (13) is installed in the inner ring of the bearing, and the other end is installed on the side surface of the top plate (11). The brake motor (14) is installed on one side surface of the U-shaped plate (12). The rotating shaft of the brake motor (14) passes through the U-shaped plate (12) and is fixedly connected to the shaft rod (13) on one side. A plurality of fixing holes are provided on the bottom surface of the U-shaped plate (12).

5. The device for detecting stress on a structure under a bridge according to claim 1, characterized in that: A plurality of weight-reducing openings are provided on the top plate (11) and the vertical plate (9).

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