Counter-force device for detecting horizontal thrust resistance of bridge handrail

Abstract

The utility model relates to the technical field of bridge handrail detection, in particular to a counter-force device for detecting horizontal thrust resistance of a bridge handrail, which is used for detecting thrust of the bridge handrail fixed at the top of a handrail base and comprises a counter-force frame body, the counter-force frame body comprises a transversely arranged bottom frame, and a fixing frame is longitudinally fixed at the end part of the bottom frame. A side frame is vertically fixed to the top end of the fixing frame, a first reinforcing rod and a second reinforcing rod are obliquely fixed between the bottom frame and the side frame, a horizontal thrust resisting assembly is detachably installed on the lower side of the side frame, and a thrust assembly is detachably installed on the upper side of the side frame. The counter-force frame has the advantages that counter-force can be provided by fixing the counter-force frame body through the handrail base, additional counter weight does not need to be provided, detection cost is saved, the whole counter-force frame body is convenient to assemble and convenient to move and detect, detection efficiency is greatly improved, a bridge structure cannot be damaged, practicability is good, and the counter-force frame is suitable for popularization.

Description

Technical Field

[0001] This utility model relates to the field of bridge railing detection technology, specifically to a device for detecting the reaction force of bridge railings against horizontal thrust. Background Technology

[0002] Bridge railings are protective structures installed on both sides of bridges, mainly used to prevent out-of-control vehicles from running off the bridge or pedestrians from falling off. They also serve to separate traffic, guide the direction of traffic, and beautify the bridge. In recent years, bridge railing collapses have occurred frequently, affecting the local economy and the safety of people's travel.

[0003] Existing bridge railings are generally installed separately, and there are no corresponding force-relieving devices in the field. If the reaction force is provided by stacking heavy objects, the detection efficiency is low and the cost is high. Although there are some improvement methods, such as making temporary frames and fixing them to the bridge deck or sidewalk with ground anchor bolts, this method does not require stacking heavy objects to provide the reaction force, but it will damage the bridge deck or sidewalk.

[0004] Therefore, it is necessary to invent a reaction force device for detecting the resistance of bridge railings to horizontal thrust. Utility Model Content

[0005] Therefore, this utility model provides a reaction force device for detecting the resistance of bridge railings to horizontal thrust, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a reaction force device for detecting the horizontal thrust resistance of bridge railings, used for detecting the thrust of bridge railings fixed to the top of the railing base, comprising a reaction force frame, the reaction force frame comprising a horizontally arranged base frame, a longitudinally fixed fixing frame at the end of the base frame, a vertically fixed side frame at the top of the fixing frame, a first reinforcing rod and a second reinforcing rod obliquely fixed between the base frame and the side frame, a horizontal thrust resistance component detachably installed on the lower side of the side frame, a thrust component detachably installed on the upper side of the side frame, and a bridge railing deformation detection component.

[0007] Preferably, the anti-horizontal thrust assembly includes a first strip hole and a U-shaped clamp, wherein the first strip hole is vertically formed on the lower side of the side frame.

[0008] Preferably, one end of the U-shaped clamp passes through the first strip hole, and the other end of the U-shaped clamp is laterally fixed with a threaded sleeve. A fixing screw is threadedly connected to the inner surface of the threaded sleeve. A rotating handle is fixed to the end of the fixing screw away from the side frame, and a steel pad is fixed to the end of the fixing screw near the side frame. The side end of the steel pad abuts against the side end of the railing base.

[0009] Preferably, the base frame has a second strip-shaped hole on the side away from the fixed frame.

[0010] Preferably, the thrust assembly includes a third strip hole and a movable plate, wherein the third strip hole is vertically formed on the upper side of the side frame.

[0011] Preferably, the upper and lower ends of the movable plate are threaded with tightening bolts, each tightening bolt passing through a third strip hole laterally, and each tightening bolt surface is threaded with a matching nut.

[0012] Preferably, each of the movable plate sides is laterally fixed with a bracket, a jack is placed on the top of the bracket, the jack is fixed to the top of the bracket by a stainless steel strip, and the end of the jack's output shaft abuts against the side of the bridge railing.

[0013] Preferably, the bridge railing deformation detection component includes several dial indicator supports, which are evenly arranged from front to back on one side of the bridge railing. Each of the dial indicator supports has a dial indicator fixed to its top, and the detection end of each dial indicator abuts against the side of the bridge railing.

[0014] The beneficial effects of this utility model are as follows: by using the reaction frame, the anti-horizontal thrust component, the thrust component and the bridge railing deformation detection component in combination, the reaction force can be provided by fixing the reaction frame with the railing base, without the need for additional counterweight, saving detection costs. Moreover, the reaction frame is easy to assemble and move for detection, greatly improving detection efficiency. It can also be applied to the detection of bridge railings of different heights, with a wide range of applications, and will not damage the bridge structure. It has good practicality and is suitable for promotion. Attached Figure Description

[0015] Figure 1 A structural cross-sectional view provided for this utility model;

[0016] Figure 2 for Figure 1 Enlarged view of the structure at point A in the image;

[0017] Figure 3 for Figure 1 Enlarged view of the structure at point B in the image;

[0018] Figure 4 A partial structural cross-sectional view of a device for detecting the reaction force of a bridge railing against horizontal thrust, provided by this utility model;

[0019] Figure 5 A partial front view of the reaction force device for detecting the horizontal thrust resistance of a bridge railing provided by this utility model during use;

[0020] Figure 6 The top view of the structure of the reaction force device for detecting the horizontal thrust resistance of a bridge railing provided by this utility model during use.

[0021] In the diagram: 1. Base frame; 2. Fixed frame; 3. Side frame; 4. First reinforcing rod; 5. Second reinforcing rod; 6. First strip hole; 7. U-shaped clamp; 8. Threaded sleeve; 9. Fixed screw; 10. Rotating handle; 11. Steel pad; 12. Second strip hole; 13. Third strip hole; 14. Moving plate; 15. Tightening bolt; 16. Matching nut; 17. Bracket; 18. Jack; 19. Stainless steel strip; 20. Dial indicator bracket; 21. Dial indicator; 22. Bridge slab beam; 23. Railing base; 24. Bridge railing. Detailed Implementation

[0022] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0023] Please refer to the appendix. Figures 1-6 This utility model provides a reaction force device for detecting the horizontal thrust resistance of a bridge railing, used to detect the thrust of a bridge railing 24 fixed to the top of a railing base 23. The bottom of the railing base 23 is fixed to the top of a bridge slab beam 22 (e.g., ...). Figure 3-6 As shown), it includes a reaction frame body, which includes a horizontally arranged base frame 1, a longitudinally fixed frame 2 at the end of the base frame 1, a vertically fixed side frame 3 at the top of the fixed frame 2, and a first reinforcing rod 4 and a second reinforcing rod 5 (as shown) obliquely fixed between the base frame 1 and the side frame 3. Figure 1 As shown), under the action of the first reinforcing rod 4 and the second reinforcing rod 5, the stability of the overall structure of the reaction frame can be effectively increased. The side frame 3 is detachably installed with an anti-horizontal thrust component on the lower side and a thrust component is detachably installed on the upper side of the side frame 3. It also includes a bridge railing deformation detection component.

[0024] The anti-horizontal thrust assembly includes a first strip hole 6 and a U-shaped clamp 7. The first strip hole 6 is vertically formed on the lower side of the side frame 3. One end of the U-shaped clamp 7 passes through the first strip hole 6, and the other end of the U-shaped clamp 7 is horizontally fixed with a threaded sleeve 8. A fixing screw 9 is threadedly connected to the inner surface of the threaded sleeve 8. A rotating handle 10 is fixed to the end of the fixing screw 9 away from the side frame 3, and a steel pad 11 is fixed to the end of the fixing screw 9 near the side frame 3. The side end of the steel pad 11 abuts against the side end of the railing base 23 (e.g., Figure 4As shown), specifically, under the action of the U-shaped clamp 7, the side frame 3 of the reaction frame can be connected to the railing base 23. Then, by rotating the handle 10 to rotate the fixing screw 9, the steel pad 11 is pressed against the railing base 23, thereby providing a reaction force during the process of applying a pushing force to the bridge railing 11. That is, the reaction device can rely on the railing base 23 to fix the reaction frame to provide a reaction force without the need for additional counterweight, saving testing costs. Moreover, under the action of the first strip hole 6, the U-shaped clamp 7 can be easily moved upward and removed, that is, the U-shaped clamp 7 and the reaction frame are easy to disassemble and assemble.

[0025] A second strip hole 12 is provided laterally on the side of the base frame 1 away from the fixed frame 2. Specifically, the base frame 1 also has a strip hole. If the reaction force is large, expansion bolts can be used for fixing to improve the stability of the reaction frame.

[0026] The thrust assembly includes a third strip-shaped hole 13 and a movable plate 14. The third strip-shaped hole 13 is vertically opened on the upper side of the side frame 3. Tightening bolts 15 are threaded to both the upper and lower ends of the movable plate 14. Each tightening bolt 15 passes laterally through the third strip-shaped hole 13, and a matching nut 16 is threaded onto the surface of each tightening bolt 15. A bracket 17 is laterally fixed to the side end of the movable plate 14. A jack 18 is placed on top of the bracket 17 and fixed to the top of the bracket 17 by a stainless steel strip 19. The output shaft end of the jack 18 abuts against the side of the bridge railing 24. Specifically, the jack 18 is preferably a manual jack with a capacity of 10 tons or less. The pressurized jack 18 can apply a thrust to the bridge railing 24 when pressurized. Under the action of the third strip hole 13, the operator can control the moving plate 14 to move up and down by tightening and loosening the bolts 15 and matching nuts 16, so that the height of the jack 18 can be easily adjusted. It can be used for the inspection of bridge railings of different heights, with a wide range of applications. Moreover, the operator can also control the disassembly and assembly of the moving plate 14 by disassembling and tightening the bolts 15 and matching nuts 16. In other words, the reaction frame is easy to assemble and move for inspection, which greatly improves the inspection efficiency and will not damage the bridge structure.

[0027] The bridge railing deformation detection component includes several dial indicator supports 20, which are evenly arranged from front to back on one side of the bridge railing 24. Each dial indicator support 20 has a dial indicator 21 fixed to its top, and the detection end of each dial indicator 21 abuts against the side of the bridge railing 24. Specifically, under the action of the dial indicators 21, the deformation of the bridge railing 24 can be detected.

[0028] The usage process of this utility model is as follows: First, the user places the reaction frame on top of the bridge beam 22. Then, by tightening or loosening the bolts 15 and matching nuts 16, the user controls the movement of the moving plate 14 up and down, adjusting the jack 18 to the height of the bridge railing 24. Next, the user moves the reaction frame so that the jack 18 contacts the bridge railing 24. Then, the U-shaped clamp 7 passes through the first slot 6 and moves downwards, so that the bridge base 23 is located inside the U-shaped clamp 7. Then, by rotating the handle 10, the user rotates the fixing screw 9, causing the steel pad 11 to abut against the railing base 23. Then, several dial indicator supports 20 are evenly arranged so that the dial indicator testing ends contact the bridge railing 24. After preparation, the user controls the jack 18 to apply pressure, applying a pushing force to the bridge railing 24. At this time, the reaction device can rely on the railing base 23 to fix the reaction frame to provide reaction force. Under the action of several dial indicators 21, the deformation of the bridge railing 24 can be detected.

[0029] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art can modify this utility model or modify it into an equivalent technical solution using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solution of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A reaction force device for detecting the resistance of a bridge railing to horizontal thrust, used for detecting the thrust of a bridge railing (24) fixed to the top of a railing base (23), comprising a reaction force frame, characterized in that: The reaction frame includes a horizontally arranged base frame (1), a longitudinally fixed frame (2) at the end of the base frame (1), a vertically fixed side frame (3) at the top of the fixed frame (2), a first reinforcing rod (4) and a second reinforcing rod (5) obliquely fixed between the base frame (1) and the side frame (3), an anti-horizontal thrust component is detachably installed on the lower side of the side frame (3), a thrust component is detachably installed on the upper side of the side frame (3), and a bridge railing deformation detection component is also included.

2. The reaction force device for detecting the resistance of bridge railings to horizontal thrust according to claim 1, characterized in that: The anti-horizontal thrust assembly includes a first strip hole (6) and a U-shaped clamp (7), wherein the first strip hole (6) is vertically opened on the lower side of the side frame (3).

3. The reaction force device for detecting the resistance of bridge railings to horizontal thrust according to claim 2, characterized in that: One end of the U-shaped clamp (7) passes through the first strip hole (6), and the other end of the U-shaped clamp (7) is horizontally fixed with a threaded sleeve (8). The inner surface of the threaded sleeve (8) is threaded with a fixing screw (9). The end of the fixing screw (9) away from the side frame (3) is fixed with a rotating handle (10), and the end of the fixing screw (9) close to the side frame (3) is fixed with a steel pad (11). The side end of the steel pad (11) abuts against the side end of the railing base (23).

4. The reaction force device for detecting the resistance of bridge railings to horizontal thrust according to claim 3, characterized in that: The base frame (1) has a second strip hole (12) on the side away from the fixed frame (2).

5. The reaction force device for detecting the resistance of bridge railings to horizontal thrust according to claim 1, characterized in that: The thrust assembly includes a third strip hole (13) and a movable plate (14), wherein the third strip hole (13) is vertically opened on the upper side of the side frame (3).

6. A reaction force device for detecting the resistance of a bridge railing to horizontal thrust according to claim 5, characterized in that: The upper and lower ends of the movable plate (14) are threaded with tightening bolts (15), and the tightening bolts (15) all pass through the third strip hole (13) laterally. The surface of the tightening bolts (15) is threaded with matching nuts (16).

7. A reaction force device for detecting the resistance of a bridge railing to horizontal thrust according to claim 6, characterized in that: Each side of the movable plate (14) is horizontally fixed with a bracket (17), and a jack (18) is placed on the top of the bracket (17). The jack (18) is fixed to the top of the bracket (17) by a stainless steel strip (19), and the end of the output shaft of the jack (18) abuts against the side of the bridge railing (24).

8. The reaction force device for detecting the resistance of bridge railings to horizontal thrust according to claim 1, characterized in that: The bridge railing deformation detection component includes several dial gauge brackets (20), which are evenly arranged from front to back on one side of the bridge railing (24). Each of the dial gauge brackets (20) has a dial gauge (21) fixed at its top, and the detection end of each dial gauge (21) abuts against the side of the bridge railing (24).

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