Hinge joint detection device for hinged plate girder bridge

Abstract

The utility model discloses a hinge joint detection device for a hinged plate girder bridge, which relates to the technical field of bridges and comprises a plate girder I and a plate girder II, a fixing mechanism is arranged on the bottom surfaces of the plate girder I and the plate girder II, a height measuring mechanism is arranged in the fixing mechanism, and a distance measuring mechanism is arranged on the side surface of the fixing mechanism. The two mounting plates are connected with the first plate beam and the second plate beam respectively, the fixing grooves are placed in the mounting grooves, the limiting blocks are connected with the limiting grooves so that the positions of the fixing grooves can be limited, the fixing grooves are pushed to drive the clamping blocks to be clamped into the clamping grooves, and the clamping blocks are connected with the clamping grooves so that the positions of the fixing grooves can be fixed. The two fixing plates are pulled to drive the two sets of reset springs to contract, the height measuring device is placed on the supporting base, the fixing plates are loosened, the two sets of reset springs expand to drive the two fixing plates to move so as to clamp and limit the height measuring device, and the rotary knob is rotated to drive the threaded cover to rotate so as to seal and fix the height measuring device.

Description

Technical Field

[0001] This utility model relates to the field of bridge technology, specifically to a hinge joint detection device for hinged plate beam bridges. Background Technology

[0002] A hinged slab girder bridge is composed of multiple slab girders connected laterally by hinged concrete joints. The hinge joints between adjacent slab girders help the slab girders transfer loads. When a load is applied to one side of the slab girders, it will be transferred to the other side of the slab girders through the hinge joints. All slab girders jointly bear the load applied to the bridge.

[0003] Patent publication number CN213714202U discloses a detection device for damage to large hinge joints between precast slab beams. The detection device includes an elastic sheet, which is approximately Ω-shaped. The elastic sheet includes an arc-shaped portion and two connecting portions extending from both ends of the arc-shaped portion. The two connecting portions are respectively fixed to two slab beams. A strain sensor has a strain gauge, which is mounted on the arc-shaped portion of the elastic sheet.

[0004] To address the issues of numerous parameters, low accuracy, and cumbersome evaluation processes involved in existing slab girder bridge hinge joint detection devices, current technology employs strain sensors to detect slab girder bridge hinge joints. This method can accurately measure the relative displacement of hinge joints between precast slab girder bridges and offers a large measurement range. However, the unpredictable and complex outdoor weather conditions can easily damage sensors and other electronic equipment, making it impossible to conduct long-term detection of slab girder bridge hinge joints. Utility Model Content

[0005] The purpose of this invention is to provide a hinge joint detection device for hinged plate beam bridges to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A hinge joint detection device for a hinged plate beam bridge includes a first plate beam and a second plate beam. The bottom surfaces of the first plate beam and the second plate beam are provided with a fixing mechanism. The interior of the fixing mechanism is provided with a height measuring mechanism, and the side of the fixing mechanism is provided with a spacing measuring mechanism.

[0008] The fixing mechanism includes a mounting plate, a horizontal groove on the top surface of the mounting plate, a vertical groove on the top surface of the mounting plate, a mounting groove fixedly connected to the bottom surface of the mounting plate, a slot on the bottom surface of the inner cavity of the mounting groove, a limit groove on the side surface of the inner cavity of the mounting groove, an observation door rotatably connected to the front side of the mounting groove via a hinge, and a rotating plate fixedly connected to the side surface of the mounting groove.

[0009] A further improvement of this utility model is that: a fixing groove is movably connected inside the mounting groove, a limiting block is fixedly connected to the side of the fixing groove, the limiting block cooperates with the limiting groove, and a locking block is fixedly connected to the back of the fixing groove, the locking block cooperates with the locking groove.

[0010] A further improvement of this utility model is that: a threaded cover is rotatably connected inside the top surface of the fixing groove, a knob is fixedly connected to the top of the threaded cover, and a support base is fixedly connected to the bottom surface of the inner cavity of the fixing groove.

[0011] A further improvement of this utility model is that: a spring groove is provided on the inner side of the fixing groove, a reset spring is fixedly connected inside the spring groove, and a fixing plate is fixedly connected to one end of the reset spring.

[0012] A further improvement of the present invention is that the height measuring mechanism includes a scale tube, and there are two scale tubes. One end of the scale tube is threadedly connected to the threaded cap, and a rubber sealing gasket is fixedly connected to the side of one end of the scale tube.

[0013] A further improvement of the present invention is that: a flexible tube is sleeved at the other end of the graduated tube, and one end of the flexible tube is sleeved with another graduated tube.

[0014] A further improvement of the present invention is that the spacing measuring mechanism includes a first graduated cylinder, a second graduated cylinder is slidably connected inside the first graduated cylinder, and a rotating block is fixedly connected to one end of both the first graduated cylinder and the second graduated cylinder, and the rotating block is rotatably connected to the rotating plate.

[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0016] 1. This utility model provides a hinge joint detection device for hinged plate beam bridges. It employs a fixing mechanism, mounting plates, transverse grooves, longitudinal grooves, mounting slots, locking slots, limiting slots, observation doors, rotating plates, fixing slots, limiting blocks, locking blocks, threaded covers, knobs, support seats, spring slots, return springs, and fixing plates in coordination. Two mounting plates are placed below plate beam one and plate beam two respectively, and the distance between the two mounting plates is adjusted. After adjusting to a suitable spacing, structural adhesive is evenly applied to the two mounting plates. After application, the two mounting plates are installed below plate beam one and plate beam two respectively. The transverse and longitudinal grooves increase the amount of adhesive stored on the top surface of the mounting plates, making the connection between the two mounting plates and plate beam one and plate beam two more secure. Pulling the observation door rotates to open the mounting slots, allowing the fixing slots to be opened. When placed in the mounting slot, the limiting block connects with the limiting slot to restrict the position of the fixed slot, improving the installation accuracy of the fixed slot. Pushing the fixed slot causes the locking block to engage with the locking slot, and the locking block connects with the locking slot to fix the position of the fixed slot. Pulling the two fixing plates causes the two sets of return springs to retract, placing the height measuring device on the support base and releasing the fixing plates. The support base supports the height measuring device, and the two sets of return springs relax, causing the two fixing plates to move and clamp and limit the height measuring device. Turning the knob causes the threaded cover to rotate, connecting the threaded cover with the height measuring device. The threaded cover seals the height measuring device and fixes its position, improving the working stability of the height measuring device and enhancing its adaptability.

[0017] 2. This utility model provides a hinge joint detection device for hinged plate beam bridges. It employs a height measuring mechanism, graduated tubes, rubber sealing gaskets, and flexible hoses. By connecting the flexible hoses to two graduated tubes and adding water or other liquids, and then connecting the two graduated tubes to two threaded caps, the liquid in the graduated tubes and flexible hoses can be sealed. The rubber sealing gaskets improve the sealing performance between the graduated tubes and the threaded caps, preventing liquid leakage. Based on the principle of communicating vessels, after the two graduated tubes are connected to the two threaded caps, the liquid inside the two graduated tubes is at the same height. The initial value is recorded as the scale value reached by the liquid in the two graduated tubes. Later, when detecting plate beam one and plate beam two, the scale values ​​reached by the liquid in the two graduated tubes are read. Based on the two readings, the height deviation between plate beam one and plate beam two can be calculated. If the deviation exceeds the normal range, it indicates that the hinge joint between plate beam one and plate beam two has been damaged, thus improving the adaptability of the device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the mounting groove device of this utility model;

[0020] Figure 3This is a schematic diagram of the fixing groove device of this utility model;

[0021] Figure 4 This is a schematic diagram of the scale tube device of this utility model;

[0022] Figure 5 This is a schematic diagram of the graduated cylinder device of this utility model.

[0023] In the diagram: 1. Beam 1; 2. Beam 2; 3. Fixing mechanism; 4. Height measuring mechanism; 5. Spacing measuring mechanism; 301. Mounting plate; 302. Horizontal groove; 303. Longitudinal groove; 304. Mounting groove; 305. Slot; 306. Limiting groove; 307. Observation door; 308. Rotating plate; 309. Fixing groove; 310. Limiting block; 311. Slot; 312. Threaded cap; 313. Knob; 314. Support base; 315. Spring groove; 316. Return spring; 317. Fixing plate; 401. Scale tube; 402. Rubber sealing gasket; 403. Flexible hose; 501. Scale cylinder 1; 502. Scale cylinder 2; 503. Rotating block. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to embodiments:

[0025] Example 1

[0026] like Figure 1-5 As shown, this utility model provides a hinge joint detection device for a hinged plate beam bridge, including a first plate beam 1 and a second plate beam 2. A fixing mechanism 3 is provided on the bottom surface of the first plate beam 1 and the second plate beam 2. A height measuring mechanism 4 is provided inside the fixing mechanism 3, and a spacing measuring mechanism 5 is provided on the side of the fixing mechanism 3. The fixing mechanism 3 includes a mounting plate 301. A transverse groove 302 and a longitudinal groove 303 are provided on the top surface of the mounting plate 301. A mounting groove 304 is fixedly connected to the bottom surface of the mounting plate 301. A slot 305 is provided on the bottom surface of the inner cavity of the mounting groove 304. A limiting groove 306 is provided on the side of the inner cavity of the mounting groove 304. An observation door 307 is rotatably connected to one side of the front of the mounting groove 304 via a hinge. A rotating plate 308 is fixedly connected to the side of the mounting groove 304. A fixed groove 309 is movably connected inside the mounting groove 304. A limiting block 310 is fixedly connected to the side of the fixed groove 309. The limiting block 310 cooperates with the limiting groove 306. A locking block 311 is fixedly connected to the back of the fixed groove 309. The locking block 311 cooperates with the locking groove 305. A threaded cover 312 is rotatably connected inside the top surface of the fixed groove 309. A knob 313 is fixedly connected to the top of the threaded cover 312. A support base 314 is fixedly connected to the bottom surface of the inner cavity of the fixed groove 309. A spring groove 315 is opened on the side of the inner cavity of the fixed groove 309. A return spring 316 is fixedly connected inside the spring groove 315. A fixing plate 317 is fixedly connected to one end of the return spring 316.

[0027] In this embodiment, by placing two mounting plates 301 below beam 1 and beam 2 respectively and adjusting the distance between them, structural adhesive is evenly applied to the two mounting plates 301 after adjusting to a suitable spacing. After application, the two mounting plates 301 are installed below beam 1 and beam 2 respectively. The horizontal groove 302 and the vertical groove 303 can increase the amount of adhesive stored on the top surface of the mounting plates 301, making the connection between the two mounting plates 301 and beam 1 and beam 2 more secure. Pulling the observation door 307 causes it to rotate relative to the mounting groove 304, thereby opening the mounting groove 304. The fixing groove 309 is placed into the mounting groove 304. The limiting block 310 is connected to the limiting groove 306 to restrict the position of the fixing groove 309, improving... The installation accuracy of the fixing groove 309 is ensured by pushing the fixing groove 309 to drive the locking block 311 into the locking groove 305. The locking block 311 connects with the locking groove 305 to fix the position of the fixing groove 309. Pulling the two fixing plates 317 causes the two sets of return springs 316 to retract, placing the height measuring device on the support base 314 and releasing the fixing plates 317. The support base 314 supports the height measuring device, and the two sets of return springs 316 relax, causing the two fixing plates 317 to move and clamp and limit the height measuring device. Rotating the knob 313 causes the threaded cover 312 to rotate, connecting the threaded cover 312 to the height measuring device. The threaded cover 312 seals the height measuring device and fixes its position, improving the working stability of the height measuring device.

[0028] Example 2

[0029] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the height measuring mechanism 4 includes a scale tube 401, and there are two scale tubes 401. One end of the scale tube 401 is threadedly connected to the threaded cap 312. A rubber sealing gasket 402 is fixedly connected to the side of one end of the scale tube 401. A flexible tube 403 is sleeved on the other end of the scale tube 401, and one end of the flexible tube 403 is sleeved on the other scale tube 401.

[0030] In this embodiment, by connecting the hose 403 to two graduated tubes 401 respectively and adding water or other liquids to the graduated tubes 401, and connecting the two graduated tubes 401 to two threaded caps 312 respectively, the liquid in the graduated tubes 401 and the hose 403 can be sealed. The rubber sealing gasket 402 can improve the sealing performance between the graduated tubes 401 and the threaded caps 312, preventing liquid leakage from the graduated tubes 401. According to the principle of communicating vessels, after the two graduated tubes 401 are connected to the two threaded caps 312, the liquid inside the two graduated tubes 401 is at the same height. The scale value reached by the liquid in the two graduated tubes 401 at this time is recorded as the initial value. When the plate beam 1 and plate beam 2 are tested later, the scale value reached by the liquid on the two graduated tubes 401 is read. The height deviation between plate beam 1 and plate beam 2 can be calculated based on the two readings. If the deviation value exceeds the normal range, it indicates that the hinge between plate beam 1 and plate beam 2 has been damaged.

[0031] Example 3

[0032] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the spacing measuring mechanism 5 includes a first scale cylinder 501, a second scale cylinder 502 is slidably connected inside the first scale cylinder 501, and a rotating block 503 is fixedly connected to one end of both the first scale cylinder 501 and the second scale cylinder 502, and the rotating block 503 is rotatably connected to the rotating plate 308.

[0033] In this embodiment, after the two mounting plates 301 are installed with the first plate beam 1 and the second plate beam 2, the first scale cylinder 501 and the second scale cylinder 502 are pulled to connect the two rotating blocks 503 to the two rotating plates 308 respectively. The value at the junction of the second scale cylinder 502 and the first scale cylinder 501 is read as the initial value. When the first plate beam 1 and the second plate beam 2 are tested later, the value at the junction of the second scale cylinder 502 and the first scale cylinder 501 is read. Based on the two readings, the deviation of the distance between the first plate beam 1 and the second plate beam 2 can be calculated. If the deviation value exceeds the normal range, it indicates that the hinge between the first plate beam 1 and the second plate beam 2 has been damaged.

[0034] The working principle of this hinge joint detection device for hinged plate beam bridges will be explained in detail below.

[0035] like Figure 1-5As shown, by placing two mounting plates 301 below beam 1 and beam 2 respectively, adjusting the distance between the two mounting plates 301, and then evenly applying structural adhesive to the two mounting plates 301 after adjusting to a suitable spacing, the two mounting plates 301 are installed below beam 1 and beam 2 respectively. The horizontal groove 302 and the vertical groove 303 can increase the amount of adhesive stored on the top surface of the mounting plates 301, making the connection between the two mounting plates 301 and beam 1 and beam 2 more secure. Pulling the graduated cylinders 501 and 502 connects the two rotating blocks 503 to the two rotating plates 308 respectively, and reading the scale... The value at the junction of graduated cylinder 2 502 and graduated cylinder 1 501 is used as the initial value. Pulling the observation door 307 to rotate opens the mounting slot 304, and the fixing slot 309 is placed into the mounting slot 304. The limiting block 310 is connected to the limiting slot 306 to restrict the position of the fixing slot 309. Pushing the fixing slot 309 causes the locking block 311 to engage with the locking slot 305, fixing the position of the fixing slot 309. Connect the hose 403 to the two graduated tubes 401 respectively and add water or other liquid to the graduated tubes 401. Pulling the two fixing plates 317 causes the two sets of return springs 316 to retract, and the graduated tubes 401 are placed... Placed on the support 314 and with the fixing plate 317 released, the two sets of return springs 316 relax, causing the two fixing plates 317 to move and clamp and limit the graduation tube 401. Rotating the knob 313 causes the threaded cap 312 to rotate, connecting the threaded cap 312 to the graduation tube 401. The threaded cap 312 seals the graduation tube 401 and fixes its position. The rubber sealing gasket 402 improves the sealing performance between the graduation tube 401 and the threaded cap 312. According to the principle of communicating vessels, after the two graduation tubes 401 are connected to the two threaded caps 312, the liquid inside the two graduation tubes 401 is in the same state. The height is recorded as the initial value at the scale value reached by the liquid in the two graduated tubes 401. When testing plate beam 1 and plate beam 2 later, the scale values ​​reached by the liquid in the two graduated tubes 401 are read. The height deviation between plate beam 1 and plate beam 2 can be calculated based on the two readings. The value at the junction of graduated cylinder 2 502 and graduated cylinder 1 501 is read. The distance deviation between plate beam 1 and plate beam 2 can be calculated based on the two readings. If the deviation of either the height deviation or the distance deviation exceeds the normal range, it indicates that the hinge between plate beam 1 and plate beam 2 is damaged.

[0036] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A hinge joint detection device for a hinged plate girder bridge, comprising a first plate girder (1) and a second plate girder (2), characterized in that: The bottom surfaces of the first plate beam (1) and the second plate beam (2) are provided with a fixing mechanism (3), the interior of the fixing mechanism (3) is provided with a height measuring mechanism (4), and the side of the fixing mechanism (3) is provided with a spacing measuring mechanism (5). The fixing mechanism (3) includes a mounting plate (301), a horizontal groove (302) is provided on the top surface of the mounting plate (301), a vertical groove (303) is provided on the top surface of the mounting plate (301), a mounting groove (304) is fixedly connected to the bottom surface of the mounting plate (301), a slot (305) is provided on the bottom surface of the inner cavity of the mounting groove (304), a limiting groove (306) is provided on the side of the inner cavity of the mounting groove (304), an observation door (307) is rotatably connected to one side of the front of the mounting groove (304) by a hinge, and a rotating plate (308) is fixedly connected to the side of the mounting groove (304).

2. The hinge joint detection device for a hinged plate beam bridge according to claim 1, characterized in that: The mounting groove (304) is movably connected to a fixing groove (309). A limiting block (310) is fixedly connected to the side of the fixing groove (309). The limiting block (310) cooperates with the limiting groove (306). A locking block (311) is fixedly connected to the back of the fixing groove (309). The locking block (311) cooperates with the locking groove (305).

3. The hinge joint detection device for a hinged plate beam bridge according to claim 2, characterized in that: A threaded cover (312) is rotatably connected to the top surface of the fixing groove (309), a knob (313) is fixedly connected to the top of the threaded cover (312), and a support base (314) is fixedly connected to the bottom surface of the inner cavity of the fixing groove (309).

4. The hinge joint detection device for a hinged plate beam bridge according to claim 3, characterized in that: The inner side of the fixed groove (309) is provided with a spring groove (315), and a return spring (316) is fixedly connected inside the spring groove (315). One end of the return spring (316) is fixedly connected to a fixed plate (317).

5. The hinge joint detection device for a hinged plate beam bridge according to claim 4, characterized in that: The height measuring mechanism (4) includes a scale tube (401), and there are two scale tubes (401). One end of the scale tube (401) is threadedly connected to the threaded cap (312), and a rubber sealing gasket (402) is fixedly connected to the side of one end of the scale tube (401).

6. The hinge joint detection device for a hinged plate beam bridge according to claim 5, characterized in that: The other end of the graduated tube (401) is fitted with a flexible tube (403), and one end of the flexible tube (403) is fitted with another graduated tube (401).

7. The hinge joint detection device for a hinged plate beam bridge according to claim 6, characterized in that: The spacing measuring mechanism (5) includes a first scale cylinder (501), and a second scale cylinder (502) is slidably connected inside the first scale cylinder (501). A rotating block (503) is fixedly connected to one end of both the first scale cylinder (501) and the second scale cylinder (502). The rotating block (503) is rotatably connected to the rotating plate (308).

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