Bridge static load test measuring device

Abstract

The utility model belongs to the field of bridge static load test measuring devices, and particularly relates to a bridge static load test measuring device which comprises a device body. Multiple sets of hydraulic cylinders are arranged at the bottom end of the device body, the bottom end of the device body is fixedly connected with the rear ends of the hydraulic cylinders, and a measuring mechanism is arranged at the front ends of the hydraulic cylinders; the measuring mechanism comprises a bottom plate, the bottom plate is arranged at the front end of the hydraulic cylinder, the top end of the bottom plate is fixedly connected with the bottom end of the hydraulic cylinder, and first fixing blocks are arranged on the two sides, close to the front and rear ends of the hydraulic cylinder, of the top end of the bottom plate and the bottom end of the device body; through the design of the measuring mechanism, the function of increasing the stress area is achieved, the problem that when detection is conducted in the prior art, when a hydraulic cylinder is started for detection, due to the fact that the end of the hydraulic cylinder is small, a bridge body is extremely prone to being damaged in the detection process is solved, and the protection efficiency of the bridge body is improved.

Description

Technical Field

[0001] The utility model relates to the field of bridge static load test measurement devices, in particular to a bridge static load test measurement device. Background Art

[0002] The bridge static load test measurement device simulates the stress conditions of the bridge under actual use conditions by applying static loads, thereby evaluating the bearing capacity and structural safety of the bridge. It consists of a loading system, a measurement and control system, and a data acquisition system, and achieves comprehensive testing and evaluation of the bridge through the coordination of working principles.

[0003] An existing bridge static load test measurement device can specifically refer to the application number: CN202021325247.8, which is a flexible and convenient bridge static load test device, including a horizontal plate, a horizontal slide groove is provided on the bottom surface of the horizontal plate, and three sliders are provided in the slide groove that can slide along and cannot be separated from the slide groove, the bottom surface of the slider in the middle is fixedly connected to the top surface of the first fixed plate, and the bottom surfaces of the other two sliders are respectively fixedly connected to the top surface of the second fixed plate, and the bottom surface of the first fixed plate is fixedly installed with several evenly distributed first hydraulic cylinders, and the front and rear ends of the bottom surfaces of the two second fixed plates are respectively fixedly connected to the vertical ends of the L-shaped plate. This device can adjust the position of the L-shaped plate and the first hydraulic cylinder by controlling the motor and the second hydraulic cylinder, and the adjustment is convenient, so that this device can perform static load tests on beams of different lengths to be measured, and can also perform static load tests on parts of different positions of the beam to be measured at the same time, so that the data measured by the user through this device for the beam to be measured is more comprehensive, and it is more convenient for the user to perform data analysis;

[0004] The above-mentioned device is not provided with a component that can increase the force-bearing area. When the hydraulic cylinder is started for inspection, the end of the hydraulic cylinder is small, which can easily cause damage to the bridge body during inspection. Therefore, a bridge static load test measurement device is proposed to address the above problem. Utility Model Content

[0005] In order to make up for the shortcomings of the prior art, the utility model proposes a bridge static load test measuring device. In the prior art, when a hydraulic cylinder is started for testing, the end of the hydraulic cylinder is small, which easily causes damage to the bridge body during testing.

[0006] The technical solution adopted by the utility model to solve the technical problem is: a bridge static load test measuring device described in the utility model comprises a device body; a plurality of hydraulic cylinders are arranged at the bottom end of the device body, and the bottom end of the device body is fixedly connected to the rear end of the hydraulic cylinder, and a measuring mechanism is arranged at the front end of the hydraulic cylinder;

[0007] The measuring mechanism includes a base plate, which is arranged at the front end of the hydraulic cylinder, and the top of the base plate is fixedly connected to the bottom end of the hydraulic cylinder, and first fixed blocks are also arranged on both sides of the top of the base plate and the bottom end of the device body close to the front and rear ends of the hydraulic cylinder, and the top of the base plate and the bottom end of the device body are respectively fixedly connected to one end of the first fixed block, the inner walls of the first fixed blocks on both sides of the base plate and the device body are fixedly connected to the two ends of the guide rod, the outer end of the guide rod at the top of the base plate is sleeved with a first moving block, and the other end of the guide rod is sleeved with a second moving block, and the guide rod is slidably connected to the first moving block and the second moving block.

[0008] Preferably, a second moving block is sleeved on one end of the outer side of the guide rod at the bottom end of the device body, and a first moving block is sleeved on the other end of the outer side of the guide rod, and the guide rod is slidably connected to the second moving block.

[0009] Preferably, the bottom end of the device body and one end of the first movable block at the top of the base plate are fixedly connected to the bottom end of the first fixed base, the inner wall of the first fixed base is fixedly connected to both ends of the first fixed rod, one end of the first support rod is sleeved on the outside of the first fixed rod at the top of the base plate, and the other end of the first support rod is sleeved on the outside of the first fixed rod at the bottom end of the device body, and the first fixed rod is rotatably connected to the first support rod.

[0010] Preferably, the bottom end of the device body and one end of the second movable block at the top of the base plate are fixedly connected to the bottom end of the second fixed base, the inner wall of the second fixed base is fixedly connected to both ends of the second fixed rod, one end of the second support rod is sleeved on the outside of the second fixed rod at the top of the base plate, and the other end of the second support rod is sleeved on the outside of the second fixed rod at the bottom end of the device body, and the second fixed rod is rotatably connected to the second support rod.

[0011] Preferably, a groove is provided near the middle position of the first support rod, the groove is sleeved on the outside of the second support rod, and the groove is rotatably connected to the second support rod.

[0012] Preferably, the middle position between the first support rod and the second support rod is sleeved on the outside of the limiting rod, and the first support rod and the second support rod are rotatably connected to the limiting rod.

[0013] The utility model is beneficial in that:

[0014] 1. The utility model realizes the function of increasing the force-bearing area through the structural design of the measuring mechanism, solves the problem that when the hydraulic cylinder is started for detection during the existing detection, the bridge body is easily damaged due to the small end of the hydraulic cylinder, and improves the efficiency of protecting the bridge body;

[0015] 2. The utility model realizes a more uniform force distribution function through the structural design of the measuring mechanism, solves the problem that when the bottom plate is tested, uneven force distribution is very likely to occur near the outer side of the bottom plate, thus resulting in inaccurate test results, and improves the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model;

[0019] Figure 3 For the utility model Figure 2 A in the middle is an enlarged schematic diagram of the structure;

[0020] Figure 4 For the utility model Figure 2 The enlarged schematic diagram at B in the middle is a schematic diagram of the structure;

[0021] Figure 5 For the utility model Figure 2 Schematic diagram of the structure of the enlarged schematic diagram at C in the middle.

[0022] In the figure: 1. device body; 2. hydraulic cylinder; 10. bottom plate; 11. first fixed block; 12. guide rod; 13. first moving block; 14. first fixed base; 15. first fixed rod; 16. first support rod; 17. second moving block; 18. second fixed base; 19. second fixed rod; 20. second support rod; 21. groove; 22. limit rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 5As shown, a bridge static load test measuring device comprises a device body 1; a plurality of hydraulic cylinders 2 are arranged at the bottom end of the device body 1, and the bottom end of the device body 1 is welded to the rear end of the hydraulic cylinder 2, and a measuring mechanism is arranged at the front end of the hydraulic cylinder 2;

[0025] The measuring mechanism includes a bottom plate 10, which is arranged at the front end of the hydraulic cylinder 2, and the top of the bottom plate 10 is welded to the bottom end of the hydraulic cylinder 2, and the top of the bottom plate 10 and the bottom end of the device body 1 are also provided with first fixed blocks 11 on both sides near the front and rear ends of the hydraulic cylinder 2, and the top of the bottom plate 10 and the bottom end of the device body 1 are respectively welded to one end of the first fixed block 11, and the inner walls of the first fixed blocks 11 on both sides of the bottom plate 10 and the device body 1 are welded to both ends of the guide rod 12, and the outer end of the guide rod 12 at the top of the bottom plate 10 is sleeved with a first moving block 13, and the other end of the guide rod 12 is sleeved with a second moving block 17, and the guide rod 12 is slidably connected with the first moving block 13 and the second moving block 17, and the inner wall of the first moving block 13 and the guide rod 12 are both circular in design;

[0026] During operation, the first support rod 16 drives the first moving blocks 13 at the upper and lower ends to move toward the middle along the surface of the guide rod 12 inside the first fixed block 11 for testing the bridge.

[0027] Furthermore, a second moving block 17 is sleeved on one end of the outer side of the guide rod 12 at the bottom end of the device body 1, and a first moving block 13 is sleeved on the other end of the outer side of the guide rod 12, and the guide rod 12 is slidably connected with the second moving block 17 and the second moving block 17, and the inner wall of the second moving block 17 is circular in design;

[0028] During operation, the second support rod 20 drives the second moving blocks 17 at the upper and lower ends to move along the surface of the guide rod 12 inside the first fixed block 11 until the bottom plate 10 contacts the bridge body and performs a pressure test, which is used to test the bridge.

[0029] Further, the bottom end of the device body 1 and one end of the first moving block 13 at the top of the bottom plate 10 are welded together with the bottom end of the first fixed base 14, the inner wall of the first fixed base 14 and the two ends of the first fixed rod 15 are welded together, one end of the first support rod 16 is sleeved on the outside of the first fixed rod 15 at the top of the bottom plate 10, and the other end of the first support rod 16 is sleeved on the outside of the first fixed rod 15 at the bottom of the device body 1, the first fixed rod 15 is rotatably connected with the first support rod 16, and the inner walls of the first fixed rod 15 and the first support rod 16 are both circular in design;

[0030] During operation, both ends of the first support rod 16 rotate along the surface of the first fixing rod 15 inside the first fixing base 14 to test the bridge.

[0031] Furthermore, the bottom end of the device body 1 and one end of the second moving block 17 at the top of the bottom plate 10 are welded together with the bottom end of the second fixed base 18, the inner wall of the second fixed base 18 and the two ends of the second fixed rod 19 are welded together, the outer side of the second fixed rod 19 at the top of the bottom plate 10 is sleeved with one end of the second support rod 20, and the outer side of the second fixed rod 19 at the bottom of the device body 1 is sleeved with the other end of the second support rod 20, the second fixed rod 19 is rotatably connected with the second support rod 20, and the inner walls of the second fixed rod 19 and the second support rod 20 are both circular in design;

[0032] During operation, both ends of the second support rod 20 rotate along the surface of the second fixed rod 19 inside the second fixed base 18 to test the bridge.

[0033] Furthermore, a groove 21 is formed near the middle of the first support rod 16, and the groove 21 is sleeved on the outside of the second support rod 20, and the groove 21 is rotatably connected to the second support rod 20;

[0034] During operation, the hydraulic cylinder 2 is started and the hydraulic cylinder 2 performs an extension test. When the hydraulic cylinder 2 extends, the base plate 10 at the bottom of the hydraulic cylinder 2 is driven to move synchronously, and when the base plate 10 moves downward, the bottom ends of the first support rod 16 and the second support rod 20 at the front and rear ends are driven to move downward at the same time, and in the process of movement, the second support rod 20 and the first support rod 16 rotate synchronously, and the second support rod 20 rotates along the groove 21 opened inside the first support rod 16, which is used to test the bridge.

[0035] Furthermore, the first support rod 16 and the second support rod 20 are sleeved on the outside of the limiting rod 22 at the middle position, and the first support rod 16 and the second support rod 20 are rotatably connected with the limiting rod 22, and the limiting rod 22 is circular in design;

[0036] During operation, the middle position between the first support rod 16 and the second support rod 20 rotates along the surface of the limiting rod 22 to test the bridge.

[0037] Working principle: When the test is being carried out, the hydraulic cylinder 2 is started, and the hydraulic cylinder 2 performs an extension test. When the hydraulic cylinder 2 is extended, the bottom plate 10 at the bottom end of the hydraulic cylinder 2 is driven to move synchronously, and when the bottom plate 10 moves downward, the bottom ends of the first support rod 16 and the second support rod 20 at the front and rear ends are driven to move downward at the same time, and in the process of moving, the second support rod 20 and the first support rod 16 rotate synchronously, and the second support rod 20 rotates along the groove 21 provided inside the first support rod 16, and at the same time, the middle position of the first support rod 16 and the second support rod 20 rotates along the surface of the limit rod 22, and Both ends of the first support rod 16 rotate along the surface of the first fixed rod 15 inside the first fixed base 14, and at the same time, both ends of the second support rod 20 rotate along the surface of the second fixed rod 19 inside the second fixed base 18. At the same time, the first support rod 16 drives the first moving blocks 13 at the upper and lower ends to move toward the middle along the surface of the guide rod 12 inside the first fixed block 11, and the second support rod 20 drives the second moving blocks 17 at the upper and lower ends to move along the surface of the guide rod 12 inside the first fixed block 11 until the base plate 10 contacts the bridge body and performs a pressure test, which is used to test the bridge.

[0038] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A bridge static load test measuring device, comprising a device body (1); characterized in that: A plurality of hydraulic cylinders (2) are arranged at the bottom end of the device body (1), and the bottom end of the device body (1) is fixedly connected to the rear end of the hydraulic cylinder (2), and a measuring mechanism is arranged at the front end of the hydraulic cylinder (2); The measuring mechanism comprises a base plate (10), the base plate (10) being arranged at the front end of the hydraulic cylinder (2), and the top end of the base plate (10) being fixedly connected to the bottom end of the hydraulic cylinder (2), and the top end of the base plate (10) and the bottom end of the device body (1) being also provided with first fixed blocks (11) on both sides near the front and rear ends of the hydraulic cylinder (2), and the top end of the base plate (10) and the bottom end of the device body (1) are respectively fixedly connected to one end of the first fixed block (11), the inner walls of the first fixed blocks (11) on both sides of the base plate (10) and the device body (1) are fixedly connected to the two ends of the guide rod (12), the outer end of the guide rod (12) at the top end of the base plate (10) is sleeved with a first moving block (13), and the other end of the guide rod (12) is sleeved with a second moving block (17), and the guide rod (12) is slidably connected to the first moving block (13) and the second moving block (17).

2. A bridge static load test measuring device according to claim 1, characterized in that: A second moving block (17) is sleeved on one end of the outer side of the guide rod (12) at the bottom end of the device body (1), and a first moving block (13) is sleeved on the other end of the outer side of the guide rod (12), and the guide rod (12) is slidably connected to the second moving block (17).

3. A bridge static load test measuring device according to claim 2, characterized in that: The bottom end of the device body (1) and one end of the first moving block (13) at the top of the bottom plate (10) are fixedly connected to the bottom end of the first fixed base (14); the inner wall of the first fixed base (14) is fixedly connected to the two ends of the first fixed rod (15); one end of the first support rod (16) is sleeved on the outside of the first fixed rod (15) at the top of the bottom plate (10); and the other end of the first support rod (16) is sleeved on the outside of the first fixed rod (15) at the bottom of the device body (1); the first fixed rod (15) is rotatably connected to the first support rod (16).

4. A bridge static load test measuring device according to claim 3, characterized in that: The bottom end of the device body (1) and one end of the second movable block (17) at the top of the bottom plate (10) are fixedly connected to the bottom end of the second fixed base (18); the inner wall of the second fixed base (18) is fixedly connected to the two ends of the second fixed rod (19); one end of the second support rod (20) is sleeved on the outside of the second fixed rod (19) at the top of the bottom plate (10); and the other end of the second support rod (20) is sleeved on the outside of the second fixed rod (19) at the bottom of the device body (1); the second fixed rod (19) is rotatably connected to the second support rod (20).

5. A bridge static load test measuring device according to claim 4, characterized in that: The first support rod (16) is provided with a groove (21) near the middle position, the groove (21) is sleeved on the outside of the second support rod (20), and the groove (21) is rotatably connected to the second support rod (20).

6. A bridge static load test measuring device according to claim 5, characterized in that: The first support rod (16) and the second support rod (20) are sleeved on the outside of the limiting rod (22) at a middle position, and the first support rod (16) and the second support rod (20) are rotatably connected to the limiting rod (22).

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