Prestressed anchorage device for road and bridge construction

Abstract

The utility model relates to road and bridge construction technical field discloses road and bridge construction is with prestress anchor clamps, including anchor backing plate, feeding hole and detection controller, the inner wall of anchor backing plate is symmetrically penetrated and is established on feeding hole, the outside of anchor backing plate is provided with mounting mechanism, the outside of feeding hole is provided with clamping mechanism, the mounting mechanism includes the anchor clamps plate fixedly connected on the inner wall of anchor backing plate, the outer wall of anchor clamps plate is fixedly connected with fixed tube, the inside fixed connection of fixed tube has bellows, this road and bridge construction is with prestress anchor clamps, through the arc clamping piece polymerization presents the frustum of cone, cooperates rubber ring one and rubber ring two and utilizes the elasticity to guarantee synchronous shrinkage, enhances the adhesion with the strand to reduce the slippage, the detection wheel real -time monitoring strand displacement, after detection controller receives the signal, can automatically control the sliding of adjusting plate and the telescopic slide, the dynamic adjustment arc clamping piece clamping force, guarantees the stable anchoring effect.

Description

Technical Field

[0001] This utility model relates to the field of road and bridge construction technology, specifically to prestressed anchorages for road and bridge construction. Background Technology

[0002] Road and bridge construction is a general term for road and bridge engineering construction, covering the entire process of planning, design, construction and maintenance of transportation infrastructure such as roads, bridges and tunnels, including construction objects such as roadbeds and pavements, bridge engineering and tunnels and culverts.

[0003] Prestressed anchorages, commonly used in road and bridge construction, still have many problems in practical applications, affecting project quality and structural stability:

[0004] 1. Frequent slippage of the wedges: The existing anchor wedges and steel strands have insufficient stability in their clamping and engagement, and are prone to slippage due to uneven stress and poor synchronization, resulting in prestress loss and affecting the anchoring effect;

[0005] 2. Lack of real-time detection and dynamic adjustment capabilities: It is impossible to monitor the displacement changes of the steel strand during tensioning or operation in a timely manner. When a slight shrinkage occurs, it cannot automatically clamp and reinforce, which can easily lead to long-term prestress loss. Utility Model Content

[0006] The purpose of this utility model is to solve the problems of insufficient stability in the clamping of prestressed anchor clips and steel strands in the existing technology, which easily leads to slippage and loss of prestress, and proposes a prestressed anchor for road and bridge construction.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A prestressed anchor for road and bridge construction includes an anchor plate, a feeding hole, and a detection controller. The feeding hole is symmetrically opened through the inner wall of the anchor plate. An installation mechanism is provided on the outer side of the anchor plate, and a clamping mechanism is provided on the outer side of the feeding hole.

[0009] Preferably, the installation mechanism includes an anchor plate that is fixedly connected to the inner wall of the anchor plate, a fixing pipe that is fixedly connected to the outer wall of the anchor plate, a corrugated pipe that is fixedly connected to the inside of the fixing pipe, a spiral rib that is fixedly connected to the side wall of the anchor plate, and seven guide holes arranged in a ring array inside the anchor plate, with a steel strand slidably connected inside each guide hole.

[0010] Preferably, the spiral reinforcement is sleeved on the outside of the fixed pipe and the corrugated pipe, and the size of the guide hole is adapted to the size of the steel strand.

[0011] Preferably, the clamping mechanism includes an adjusting plate slidably connected to the outer wall of the anchor plate on the side away from the anchor plate. The adjusting plate has a slot inside, and a plurality of guide holes are arranged in a circular array on the inner wall of the slot. A plurality of limiting grooves are arranged in a circular array on the inner wall of the slot. Each limiting groove has a locking block slidably connected inside it. An arc-shaped clamping piece is fixedly connected to the bottom end of the locking block. An adjusting groove is provided on the side of the arc-shaped clamping piece near the locking block, and an adjusting groove is provided on the side of the arc-shaped clamping piece away from the locking block. A rubber ring is sleeved inside the adjusting groove, and a rubber ring is sleeved inside the adjusting groove. A sliding plate is slidably connected to the locking block and the arc-shaped clamping piece. A detection wheel is rotatably connected to the end of the sliding plate away from the locking block.

[0012] Preferably, the size of the limiting groove is adapted to the size of the card block, the shape of the four arc-shaped clamping pieces after aggregation is a frustum, and there is an electrical connection between the adjusting plate and the detection controller.

[0013] Preferably, the skateboard and the detection controller are electrically connected, and the detection wheel and the detection controller are electrically connected.

[0014] Compared with the prior art, this utility model provides a prestressed anchorage for road and bridge construction, which has the following characteristics:

[0015] Beneficial effects:

[0016] 1. The prestressed anchorage used in the construction of this bridge is formed into a frustum shape by the aggregation of arc-shaped clamps. It works with rubber ring one and rubber ring two to ensure synchronous contraction through elasticity, thereby enhancing the fit with the steel strand and reducing slippage. The detection wheel monitors the displacement of the steel strand in real time. After receiving the signal, the detection controller can automatically control the sliding of the adjustment plate and the extension and retraction of the sliding plate, dynamically adjusting the clamping force of the arc-shaped clamps to ensure stable anchoring effect.

[0017] 2. The prestressed anchorage used in the construction of this bridge and road uses guide holes one and two to precisely match the size of the steel strands, facilitating quick threading and positioning. The sliding connection between the adjusting plate and the anchorage plate simplifies the construction operation. The spiral reinforcement enhances the load-bearing capacity of the anchorage, the rubber ring reduces the hard wear between the clamps and the steel strands, and the overall structure facilitates grout filling, improving corrosion resistance and service life. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the prestressed anchorage for road and bridge construction proposed in this utility model.

[0019] Figure 2 This is a schematic diagram of the anchor plate and guide hole in the prestressed anchor for road and bridge construction proposed in this utility model.

[0020] Figure 3This is a schematic diagram of the two structures of the adjusting plate and the guide hole in the prestressed anchorage for road and bridge construction proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the slot and arc-shaped clamp structure in the prestressed anchorage for road and bridge construction proposed in this utility model.

[0022] Figure 5 This is a schematic diagram of the locking block and rubber ring in the prestressed anchorage for road and bridge construction proposed in this utility model.

[0023] Figure 6 This is a schematic diagram of the arc-shaped clamp and the detection wheel structure in the prestressed anchorage for road and bridge construction proposed in this utility model.

[0024] In the diagram: 101, Anchor plate; 102, Feeding hole; 2, Installation mechanism; 201, Anchor plate; 202, Fixing pipe; 203, Corrugated pipe; 204, Spiral reinforcement; 205, Guide hole one; 206, Steel strand; 3, Clamping mechanism; 301, Adjusting plate; 302, Slot; 303, Guide hole two; 304, Limiting slot; 305, Locking block; 306, Arc-shaped clamp; 307, Adjusting slot one; 308, Adjusting slot two; 309, Rubber ring one; 310, Rubber ring two; 311, Slide plate; 312, Detection wheel. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Example 1:

[0028] See attached document Figures 1 to 6 The prestressed anchorage for road and bridge construction includes an anchor plate 101, a feeding hole 102 and a detection controller. The feeding hole 102 is symmetrically opened through the inner wall of the anchor plate 101. An installation mechanism 2 is provided on the outer side of the anchor plate 101 and a clamping mechanism 3 is provided on the outer side of the feeding hole 102.

[0029] Furthermore, the installation mechanism 2 includes an anchor plate 201 that is fixedly connected to the inner wall of the anchor plate 101. A fixing pipe 202 is fixedly connected to the outer wall of the anchor plate 201. A corrugated pipe 203 is fixedly connected inside the fixing pipe 202. A spiral rib 204 is fixedly connected to the side wall of the anchor plate 101. The spiral rib 204 is sleeved on the outside of the fixing pipe 202 and the corrugated pipe 203. Seven guide holes 205 are arranged in a ring array inside the anchor plate 201. A steel strand 206 is slidably connected inside each guide hole 205. The size of the guide hole 205 is adapted to the size of the steel strand 206.

[0030] Furthermore, the clamping mechanism 3 includes an adjusting plate 301 slidably connected to the outer wall of the anchor plate 201 on the side away from the anchor pad 101. The adjusting plate 301 is electrically connected to the detection controller. A slot 302 is provided inside the adjusting plate 301. Several guide holes 303 are arranged in a circular array on the inner wall of the slot 302. Several limiting grooves 304 are also arranged in a circular array on the inner wall of the slot 302. Each limiting groove 304 has a slidably connected locking block 305. The size of the limiting groove 304 matches the size of the locking block 305. An arc-shaped clamping piece 306 is fixedly connected to the bottom end of the locking block 305. The shape of the plate 306 after polymerization is frustoconical. An adjustment groove 307 is provided on the side of the arc-shaped clamping plate 306 near the clamping block 305, and an adjustment groove 308 is provided on the side of the arc-shaped clamping plate 306 away from the clamping block 305. A rubber ring 309 is sleeved inside the adjustment groove 307, and a rubber ring 310 is sleeved inside the adjustment groove 308. A sliding plate 311 is slidably connected inside the clamping block 305 and the arc-shaped clamping plate 306. There is an electrical connection between the sliding plate 311 and the detection controller. A detection wheel 312 is rotatably connected to the end of the sliding plate 311 away from the clamping block 305. There is an electrical connection between the detection wheel 312 and the detection controller.

[0031] When using this utility model,

[0032] First, the operator passes the steel strand 206 through the guide hole 205 and guide hole 303 in sequence, and installs the anchor plate 201 on the side wall of the anchor plate 101. Then, the adjusting plate 301 is fitted onto the outer wall of the anchor plate 201. The controller then controls the adjusting plate 301 to slide towards the anchor plate 101 on the outer wall of the anchor plate 201. This causes the adjusting plate 301 to simultaneously slide the guide hole 303 and the limiting groove 304 towards the anchor plate 101. The limiting groove 304 then moves the locking block 305 it engages with, causing the arc-shaped clamping piece 306 to move towards the steel strand 206 under the resistance of the guide hole 205. This causes the arc-shaped clamping piece 306 to move inwards from the guide hole 205, while simultaneously causing the locking block 305 to move inwards. 05 Slides inside the limiting groove 304 towards the side closer to the guide hole 303. During the process of the arc-shaped clamping pieces 306 converging, the end of the arc-shaped clamping piece 306 away from the locking block 305 moves towards the side closer to the steel strand 206, and the arc-shaped clamping piece 306 squeezes the outer wall of the steel strand 206. When the arc-shaped clamping piece 306 drives the adjustment groove 1 307 and adjustment groove 2 308 to move, the rubber ring 1 309 and rubber ring 2 310 contract under their own elasticity, thereby maintaining the synchronicity of the convergence process of the arc-shaped clamping piece 306 until the arc-shaped clamping piece 306 abuts against the steel strand 206, making the adjustment plate 301 unable to move on the outer wall of the anchor plate 201. At this time, the clamping force of the arc-shaped clamping piece 306 on the steel strand 206 is at its optimal state.

[0033] As the arc-shaped clamp 306 moves the locking block 305 downward, the detection controller controls the sliding plate 311 to move towards the side closer to the steel strand 206 inside the locking block 305 and the arc-shaped clamp 306. This causes the sliding plate 311 to move synchronously with the detection wheel 312, so that the detection wheel 312 moves to contact the outer wall of the steel strand 206. Since the steel strand 206 will contract during the pulling process, there will be displacement between the arc-shaped clamp 306 and the steel strand 206. At this time, the detection wheel 312 rotates under the contact action of the steel strand 206. When the detection controller detects the rotation of the detection wheel 312, the detection controller controls the adjusting plate 301 to slide towards the side closer to the anchor plate 101 on the outer wall of the anchor plate 201, so that the arc-shaped clamp 306 clamps and reinforces the outer wall of the steel strand 206.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A prestressed anchorage for road and bridge construction, comprising an anchor plate (101), a feeding hole (102), and a detection controller, wherein the feeding hole (102) is symmetrically and penetratingly opened on the inner wall of the anchor plate (101), characterized in that: An installation mechanism (2) is provided on the outside of the anchor plate (101), and a clamping mechanism (3) is provided on the outside of the feeding hole (102).

2. The prestressed anchorage for bridge and road construction according to claim 1, characterized in that: The installation mechanism (2) includes an anchor plate (201) that is fixedly connected to the inner wall of the anchor plate (101). A fixing pipe (202) is fixedly connected to the outer wall of the anchor plate (201). A corrugated pipe (203) is fixedly connected inside the fixing pipe (202). A spiral rib (204) is fixedly connected to the side wall of the anchor plate (101). Seven guide holes (205) are arranged in a ring array inside the anchor plate (201). A steel strand (206) is slidably connected inside each guide hole (205).

3. The prestressed anchorage for road and bridge construction according to claim 2, characterized in that: The spiral reinforcement (204) is sleeved on the outside of the fixed pipe (202) and the corrugated pipe (203), and the size of the guide hole (205) is adapted to the size of the steel strand (206).

4. The prestressed anchorage for road and bridge construction according to claim 2, characterized in that: The clamping mechanism (3) includes an adjusting plate (301) slidably connected to the outer wall of the anchor plate (201) on the side away from the anchor pad plate (101). The adjusting plate (301) has a slot (302) inside. Several guide holes (303) are arranged in a circular array on the inner wall of the slot (302). Several limiting grooves (304) are arranged in a circular array on the inner wall of the slot (302). Each limiting groove (304) has a locking block (305) slidably connected inside it. An arc-shaped clamping piece (306) is fixedly connected to the bottom end of each locking block (305). The arc-shaped clamp (306) has an adjustment groove 1 (307) on the side near the locking block (305), and an adjustment groove 2 (308) on the side away from the locking block (305). A rubber ring 1 (309) is sleeved inside the adjustment groove 1 (307), and a rubber ring 2 (310) is sleeved inside the adjustment groove 2 (308). A sliding plate (311) is slidably connected between the locking block (305) and the inside of the arc-shaped clamp (306). A detection wheel (312) is rotatably connected to the end of the sliding plate (311) away from the locking block (305).

5. The prestressed anchorage for road and bridge construction according to claim 4, characterized in that: The size of the limiting groove (304) is adapted to the size of the card block (305), the four arc-shaped clamps (306) are assembled into a frustum shape, and there is an electrical connection between the adjusting plate (301) and the detection controller.

6. The prestressed anchorage for road and bridge construction according to claim 4, characterized in that: The skateboard (311) is electrically connected to the detection controller, and the detection wheel (312) is electrically connected to the detection controller.

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