Highway bridge bearing capacity detection device

Abstract

The utility model discloses a highway bridge bearing capacity detection device, which relates to the technical field of road construction detection, and comprises a box body, the upper part of the box body is fixedly connected with a frame, one side of the frame far away from the box body is fixedly connected with a first motor, and the end part of an output shaft of the first motor is fixedly connected with a second threaded rod; the second threaded rod is in threaded connection with the pressure rod, the second threaded rod is rotationally connected with the frame, the second threaded rod is rotationally connected with the box body, and the rolling wheel and the pressure sensor do reciprocating telescopic motion through the adjusting assembly, so that the rolling wheel and the pressure sensor roll on the surface of a pouring object sample; the dynamic load capacity of the pouring object sample is detected through the detection assembly, the fixing blocks are made to move towards the middle or the two sides at the two sides of the box body at the same time through the fixing assembly, and then the pouring object sample is placed on the surface of the box body so as to adapt to samples of different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of road construction detection, in particular to a highway bridge bearing capacity detection device. Background Art

[0002] The load-bearing capacity of a highway bridge refers to its ability to withstand external loads such as vehicles, people, and the natural environment without damage or excessive deformation under normal operating conditions. This capacity is a key indicator for ensuring the safe operation of bridges and is directly related to the smooth operation of the transportation network and public travel safety.

[0003] Most of the roads and bridges today are constructed using concrete and steel bars. After construction is completed, the construction department will give corresponding load limit standards based on the actual construction conditions to ensure the safety of the road or bridge. A large part of the load capacity of a road is determined by the structural strength of its construction. Therefore, when testing its bearing capacity, it is generally necessary to test the strength of the cast material after construction.

[0004] At present, the method for testing the strength of cast materials is generally to perform static extrusion on them through a press, and to simulate vehicles with different loads by changing the pressure of the press. However, the actual situation is that vehicles are in a dynamic driving process on the road, and static extrusion rarely occurs. The current testing method is more or less static load testing, and lacks dynamic load testing, which makes the test data have certain differences from the actual situation. Therefore, a highway bridge bearing capacity testing device is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcoming of the prior art that there is a lack of dynamic load testing, and to propose a highway bridge bearing capacity detection device.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A device for detecting the bearing capacity of a highway bridge comprises a box body, wherein the upper portion of the box body is fixedly connected to a frame, the side of the frame away from the box body is fixedly connected to a first motor, the end portion of the output shaft of the first motor is fixedly connected to a second threaded rod, the second threaded rod is threadedly connected to a pressure rod, the second threaded rod is rotatably connected to the frame, the second threaded rod is rotatably connected to the box body, a second limiting rod is fixedly connected to the inner side of the frame, the second limiting rod is slidably connected to the pressure rod, the second limiting rod is fixedly connected to the box body, an adjusting assembly is provided on the outer side of the frame, the adjusting assembly includes a roller and a pressure sensor, a fixing assembly is provided inside the box body, and the fixing assembly includes a fixing block.

[0008] The above technical solution further includes:

[0009] The outer side of the second threaded rod is slidably connected to a second moving block, and the outer side of the second limiting rod is slidably connected to a first moving block.

[0010] A second motor is fixedly connected to the outer side of the first moving block, and a first threaded rod is fixedly connected to the end of the output shaft of the second motor. The first threaded rod is rotatably connected to the first moving block and the second moving block. The outer sides of the first moving block and the second moving block are jointly fixedly connected to a first limit rod, which can move the roller and the pressure sensor left and right to realize dynamic testing.

[0011] The first threaded rod is threadedly connected to the moving frame, the moving frame is slidably connected to the first limiting rod, the moving frame is movably connected to the pressure sensor, and the pressure sensor is fixedly connected to the roller.

[0012] The upper part of the box body is symmetrically fixedly connected with springs, and one end of the two springs away from the box body is fixedly connected to the second moving block and the first moving block.

[0013] The fixing blocks are movably connected to the box body. There are two groups of fixing blocks that are symmetrically distributed. The outer sides of the fixing blocks are movably connected to the second connecting rod. The end of the second connecting rod away from the fixing blocks is movably connected to a bow rod.

[0014] The end of the bow rod away from the second connecting rod is movably connected to a hydraulic rod. The bow rod is movably connected to the box body. The outer side of the bow rod is fixedly connected to the first connecting rod, which can fix casting samples of different sizes.

[0015] The inside of the box is fixedly connected to a sliding rod, the outside of the sliding rod is slidably connected to a cylinder, the outside of the cylinder is symmetrically and movably connected to a third connecting rod, and the ends of the two third connecting rods away from the second moving block are movably connected to the first connecting rod.

[0016] The utility model has the following beneficial effects:

[0017] 1. In the present invention, by adjusting the components, the roller and the pressure sensor are made to perform reciprocating telescopic motion, thereby making the roller and the pressure sensor roll on the surface of the cast sample, thereby detecting the dynamic load capacity of the cast sample.

[0018] 2. In the present invention, the fixing blocks are moved simultaneously toward the middle or both sides of the box through the fixing assembly, and then the cast sample is placed on the surface of the box to accommodate samples of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a highway bridge load-bearing capacity detection device proposed by the utility model;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the present utility model;

[0021] Figure 3 This is a schematic structural diagram of the first part of the utility model;

[0022] Figure 4 This is a schematic structural diagram of the second part of the present utility model.

[0023] In the figure: 1. box body; 2. frame; 3. first motor; 4. pressure rod; 5. fixed block; 6. first limiting rod; 7. first threaded rod; 8. second motor; 9. moving frame; 10. second threaded rod; 11. second limiting rod; 12. first moving block; 13. spring; 14. roller; 15. pressure sensor; 16. bow rod; 17. first connecting rod; 18. second connecting rod; 19. third connecting rod; 20. sliding rod; 21. second moving block; 22. hydraulic rod; 23. cylinder. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] like Figure 1-Figure 4 As shown, a highway bridge bearing capacity detection device proposed by the present invention includes a box body 1, the upper part of the box body 1 is fixedly connected to a frame 2, the side of the frame 2 away from the box body 1 is fixedly connected to a first motor 3, the output shaft end of the first motor 3 is fixedly connected to a second threaded rod 10, the second threaded rod 10 is threadedly connected to the pressure rod 4, the second threaded rod 10 is rotatably connected to the frame 2, the second threaded rod 10 is rotatably connected to the box body 1, the inner side of the frame 2 is fixedly connected to a second limiting rod 11, the second limiting rod 11 is slidably connected to the pressure rod 4, the second limiting rod 11 is fixedly connected to the box body 1, an adjusting component is provided on the outside of the frame 2, the adjusting component includes a roller 14 and a pressure sensor 15, the outer side of the second threaded rod 10 is slidably connected to a second moving block 21, and the outer side of the second limiting rod 11 is slidably connected to the first moving block 12;

[0027] The outer side of the first moving block 12 is fixedly connected to the second motor 8, the output shaft end of the second motor 8 is fixedly connected to the first threaded rod 7, the first threaded rod 7 is rotatably connected to the first moving block 12 and the second moving block 21, the outer sides of the first moving block 12 and the second moving block 21 are jointly fixedly connected with the first limiting rod 6, the first threaded rod 7 is threadedly connected to the moving frame 9, the moving frame 9 is slidingly connected to the first limiting rod 6, the moving frame 9 is movably connected to the pressure sensor 15, the pressure sensor 15 is fixedly connected to the roller 14, the upper part of the box body 1 is symmetrically fixedly connected with the springs 13, and the two springs 13 are fixedly connected to the second moving block 21 and the first moving block 12 at one end away from the box body 1.

[0028] In this embodiment, the second threaded rod 10 is driven to rotate by starting the first motor 3, and the second threaded rod 10 is engaged with the pressure rod 4. The rotation of the second threaded rod 10 causes the pressure rod 4 to move up and down on the second threaded rod 10 and the pressure rod 4. When performing a static test on the cast sample, the pressure rod 4 moves downward to extrude the roller 14. The roller 14 moves downward to drive the second moving block 21 and the first moving block 12 as well as the pressure sensor 15 and the moving frame 9 to move. When the roller 14 moves to contact the cast sample fixed on the box body 1 for static testing, through the static test process, the start-up of the second motor 8 drives the rotation of the first threaded rod 7, so that the moving frame 9 drives the roller 14 and the pressure sensor 15 to move left and right on the first threaded rod 7 and the first limit rod 6, thereby realizing dynamic movement under static pressure and realizing dynamic testing.

[0029] Example 2

[0030] like Figure 1-Figure 4 As shown, based on the first embodiment, a fixed component is provided inside the box body 1, and the fixed component includes a fixed block 5, which is movably connected to the box body 1. The fixed block 5 is in two groups and is symmetrically distributed. The outer side of the fixed block 5 is movably connected to the second connecting rod 18, and the second connecting rod 18 is movably connected to the bow rod 16 at one end away from the fixed block 5. The bow rod 16 is movably connected to the hydraulic rod 22 at one end away from the second connecting rod 18. The bow rod 16 is movably connected to the box body 1, and the outer side of the bow rod 16 is fixedly connected to the first connecting rod 17. The interior of the box body 1 is fixedly connected to the sliding rod 20, and the outer side of the sliding rod 20 is slidably connected to the cylinder 23. The outer side of the cylinder 23 is symmetrically and movably connected to the third connecting rod 19, and the two third connecting rods 19 are movably connected to the first connecting rod 17 at one end away from the second moving block 21.

[0031] In this embodiment, by starting the hydraulic rod 22, the bow rod 16 is pushed to both sides, and the bow rod 16 drives the second connecting rod 18, and the second connecting rod 18 drives the fixed block 5 to be squeezed toward the middle of the box body 1, thereby fixing the cast sample placed on the upper part of the box body 1. At this time, the first connecting rod 17 follows the movement of the bow rod 16 to drive the third connecting rod 19 and the cylinder 23, so that the movement of the third connecting rod 19 drives the cylinder 23 to slide downward on the sliding rod 20. When the hydraulic rod 22 is tightened, it drives the bow rod 16 to be retracted, and the retraction of the bow rod 16 drives the second connecting rod 18, and the second connecting rod 18 drives the fixed block 5 to release the fixation of the cast sample on the box body 1. At this time, the first connecting rod 17 follows the movement of the bow rod 16 to drive the third connecting rod 19 and the cylinder 23 to slide back to the far point on the sliding rod 20, thereby realizing the synchronous movement of the fixed blocks 5 on both sides of the box body 1.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highway bridge load-bearing capacity detection device, comprising a box (1), characterized in that: The upper part of the box (1) is fixedly connected to a frame (2), and the side of the frame (2) away from the box (1) is fixedly connected to a first motor (3), and the output shaft end of the first motor (3) is fixedly connected to a second threaded rod (10), the second threaded rod (10) is threadedly connected to the pressure rod (4), the second threaded rod (10) is rotationally connected to the frame (2), and the second threaded rod (10) is rotationally connected to the box (1), and the inner side of the frame (2) is fixedly connected to a second limiting rod (11), the second limiting rod (11) is slidingly connected to the pressure rod (4), and the second limiting rod (11) is fixedly connected to the box (1), and an adjustment component is provided on the outer side of the frame (2), and the adjustment component includes a roller (14) and a pressure sensor (15). The interior of the box (1) is provided with a fixing component, and the fixing component includes a fixing block (5).

2. A highway bridge load-bearing capacity detection device according to claim 1, characterized in that: The outer side of the second threaded rod (10) is slidably connected to a second moving block (21), and the outer side of the second limiting rod (11) is slidably connected to a first moving block (12).

3. A highway bridge load-bearing capacity detection device according to claim 2, characterized in that: The outer side of the first moving block (12) is fixedly connected to a second motor (8), the output shaft end of the second motor (8) is fixedly connected to a first threaded rod (7), the first threaded rod (7) is rotatably connected to the first moving block (12) and the second moving block (21), and the outer sides of the first moving block (12) and the second moving block (21) are fixedly connected to a first limiting rod (6).

4. A highway bridge load-bearing capacity detection device according to claim 3, characterized in that: The first threaded rod (7) is threadedly connected to the movable frame (9), the movable frame (9) is slidably connected to the first limiting rod (6), the movable frame (9) is movably connected to the pressure sensor (15), and the pressure sensor (15) is fixedly connected to the roller (14).

5. A highway bridge load-bearing capacity detection device according to claim 1, characterized in that: The upper part of the box body (1) is symmetrically fixedly connected with springs (13), and one end of the two springs (13) away from the box body (1) is fixedly connected to the second moving block (21) and the first moving block (12).

6. A highway bridge load-bearing capacity detection device according to claim 1, characterized in that: The fixing blocks (5) are movably connected to the box body (1); the fixing blocks (5) are in two groups and are symmetrically distributed; the outer sides of the fixing blocks (5) are movably connected to the second connecting rod (18); and the end of the second connecting rod (18) away from the fixing blocks (5) is movably connected to the bow rod (16).

7. A highway bridge load-bearing capacity detection device according to claim 6, characterized in that: One end of the bow rod (16) away from the second connecting rod (18) is movably connected to a hydraulic rod (22), the bow rod (16) is movably connected to the box body (1), and the outer side of the bow rod (16) is fixedly connected to the first connecting rod (17).

8. A highway bridge load-bearing capacity detection device according to claim 1, characterized in that: The interior of the box (1) is fixedly connected to a sliding rod (20), the outer side of the sliding rod (20) is slidably connected to a cylinder (23), the outer side of the cylinder (23) is symmetrically and movably connected to a third connecting rod (19), and the ends of the two third connecting rods (19) away from the second moving block (21) are movably connected to the first connecting rod (17).

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