Stress adjusting bridge inhaul cable structure

Abstract

The utility model relates to the technical field of bridge inhaul cables, in particular to a stress adjusting bridge inhaul cable structure which comprises an upper bearing beam, a lower bearing beam and an adjusting assembly, the upper bearing beam is located below the lower bearing beam, a round hole is formed in the surface of the upper bearing beam, and the inner wall, located in the round hole, of the upper bearing beam is fixedly connected with an upper hanging head. A mounting hole is formed in the surface of the lower bearing beam, a lower hanging head is fixedly connected to the position, located on the inner wall of the mounting hole, of the lower bearing beam, the adjusting assembly is arranged on the lower surface of the upper bearing beam and comprises a guide column, and the guide column is fixedly connected to the upper surface of the lower bearing beam. According to the utility model, the adjusting assembly is arranged, so that the stress of the inhaul cable can be adjusted in real time in different load states in the operation process of the bridge, the stress of the inhaul cable is ensured to be uniform and within a safe stress range, premature fatigue damage of the inhaul cable caused by local stress concentration is avoided, the service life of the inhaul cable is prolonged, and the safety of the bridge structure is further ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge cable technology field especially relates to a stress regulation bridge cable structure. BACKGROUND

[0002] With the development of traffic, for crossing larger rivers, gorges and other complex terrain, the span and scale of bridge are increasing, and the bearing capacity and stress regulation of cable are higher for large-span bridges such as suspension bridges and cable-stayed bridges, which need advanced cable structure to ensure the stability and safety of the bridge.

[0003] The prior art such as the utility model with publication number CN212432397U discloses a steel structure bridge steel arch rib vertical cable stress adjustment testing device, which adopts upper beams, lower beams and a plurality of power units, the power units are installed between the upper beams and the lower beams, the power unit includes an oil hydraulic jack and a tensioning screw rod, the oil hydraulic jack is fixed on the upper beam, one end of the tensioning screw rod is fixedly connected with the lower beam, and the other end of the tensioning screw rod is fixedly connected with the piston of the oil hydraulic jack after penetrating through the upper beam, the testing device is also provided with an electric acceleration sensor, a cable force meter and a computer, and the electric acceleration sensor is installed on the adjusting nut of the cable.

[0004] In the process of using the cable in daily life, the existing cable such as the above cannot adjust the distance between the upper beam and the lower beam, and due to various complex factors, the cable stress will gradually change in the process of long-term use of the bridge, which leads to uneven stress distribution between the cables, which may cause some cables to bear excessive stress, accelerate fatigue damage, reduce the service life of the cable, and even cause safety hazards. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problem that the distance between the upper beam and the lower beam cannot be adjusted in the prior art, and due to various complex factors, the cable stress will gradually change in the process of long-term use of the bridge, which leads to uneven stress distribution between the cables, which may cause some cables to bear excessive stress, accelerate fatigue damage, reduce the service life of the cable, and even cause safety hazards.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a stress adjusting bridge cable structure, including upper beam, lower beam and adjusting assembly, the upper beam is located below lower beam, the surface of upper beam is equipped with round hole, the inner wall fixed connection of upper beam is located in the round hole upper hanger, the surface of lower beam is equipped with mounting hole, the inner wall fixed connection of lower beam is located in the mounting hole lower hanger, the adjusting assembly sets up in the lower surface of upper beam, the adjusting assembly includes guide column, the upper surface fixed connection of lower beam has guide column, the upper surface fixed connection of lower beam has return spring, the free end fixed connection of return spring has connecting column, the side surface fixed connection of connecting column has connecting block, the surface of connecting block is equipped with limit hole, the inner wall sleeve of connecting block is connected with the rope in limit hole;

[0007] The other end of the rope is fixedly connected with a connecting sleeve ring, the inner arc surface of the connecting sleeve ring is fixedly connected with a shaft rod, one side of the shaft rod is provided with a linkage groove, the lower beam is fixedly connected with a first supporting block on the side close to the linkage groove, the linkage groove is fixedly connected with a limit spring on the side close to the first supporting block, the free end of the limit spring is fixedly connected with a fixed block, the first supporting block is fixedly connected with a connecting rod on the side close to the fixed block, the connecting rod is fixedly connected with a limit block on the side away from the fixed block, the shaft rod is fixedly connected with a tooth block on the side away from the first supporting block, the second supporting block is fixedly connected with a second supporting block on the side close to the tooth block, the surface of the second supporting block is provided with a through hole, and the inner wall of the through hole is fixedly connected with a positioning block.

[0008] Preferably, the inner wall of the guide column and the connecting column is slidably connected, the guide column penetrates the return spring, the number of guide columns is two, and the two guide columns are symmetrically arranged at the center of the upper beam. By the guide column, the direction of the connecting column movement is guided to ensure that the connecting column moves vertically.

[0009] Preferably, the rope is wound on the outer arc surface of the shaft rod, and the number of ropes is two. The two ropes are symmetrically arranged at the center of the connecting sleeve ring. By the rope, the position of the connecting column is limited to ensure the distance between the connecting column and the lower beam.

[0010] Preferably, the side surface of the limit block and the first supporting block is fixedly connected, and the limit block is in contact with one side of the shaft rod. By the limit block, the position of the connecting rod is positioned.

[0011] Preferably, the fixed blocks are in contact with the inner wall of the shaft rod, the fixed blocks are arranged in an arc shape, the number of the fixed blocks is two, and the two fixed blocks are symmetrically arranged at the shaft center of the shaft rod.

[0012] Preferably, the limiting springs are arranged in the inside of the linkage groove, and the limiting springs are arranged on the outer arc surface of the connecting rod.

[0013] Preferably, the inner wall of the positioning block is arranged in a protruding block, the inner wall of the positioning block is in contact with the tooth groove of the tooth block, the number of the positioning blocks is two, and the two positioning blocks are symmetrically arranged at the center of the lower hanging head.

[0014] Compared with the prior art, the stress adjusting bridge cable structure has the advantages and positive effects that:

[0015] In the utility model, when the distance between the upper beam and the lower beam needs to be adjusted, the staff holds the connecting ring with one hand, pulls the shaft rod towards the direction of the second supporting block, and the shaft rod moves while extruding the limiting spring. The limiting spring is deformed by extrusion, and the connecting rod is gradually exposed. The tooth block slides in the tooth groove of the positioning block, and then the staff holds the tooth block with one hand, rotates the tooth block clockwise, and makes the rope wound on the surface of the shaft rod gradually expand. Finally, the rope expands to release the restriction of the return spring, the return spring gradually rebounds upwards with the expansion of the rope, the connecting column moves towards the upper beam, and the stress between the upper hanging head and the lower hanging head is adjusted. When the adjustment is completed, the staff releases the hand holding the tooth block, the limiting spring loses the pulling force and rebounds, drives the shaft rod to move towards the limiting block, and the tooth block moves towards the positioning block. The position of the tooth block is locked, the position of the rope is locked by the shaft rod, and the stress of the upper beam and the lower beam is fixed. Through the adjustment assembly, the cable stress can be adjusted in real time when facing different load states during the operation of the bridge, the cable stress is uniform and within the safe stress range, the cable is prevented from being damaged due to local stress concentration, the service life of the cable is prolonged, and the safety of the bridge structure is further ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A three-dimensional structure diagram of the stress adjusting bridge cable structure is provided.

[0017] Figure 2 The utility model provides a stress regulation bridge cable structure's elevation structure schematic view;

[0018] Figure 3 The utility model provides a stress regulation bridge cable structure's adjustment assembly structure schematic view;

[0019] Figure 4 The utility model provides a stress regulation bridge cable structure's adjustment assembly's partial structure schematic view;

[0020] Figure 5 The utility model provides a stress regulation bridge cable structure's adjustment assembly's partial structure schematic view;

[0021] Figure 6 The utility model provides a stress regulation bridge cable structure's Figure 5 The structure schematic view of A in middle;

[0022] Figure 7 The utility model provides a stress regulation bridge cable structure's Figure 5 The structure schematic view of B in middle.

[0023] Legend:

[0024] 1, upper beam; 2, lower beam; 3, upper lifting head; 4, lower lifting head; 5, adjustment assembly; 51, connecting column; 52, guide column; 53, return spring; 54, connecting block; 55, rope; 56, connecting sleeve ring; 57, shaft; 58, linkage groove; 59, first support block; 510, limit block; 511, connecting rod; 512, fixed block; 513, limit spring; 514, tooth block; 515, second support block; 516, positioning block. Specific embodiments

[0025] Please refer to Figures 1-7 The utility model provides a technical scheme: a stress regulation bridge cable structure, including upper beam 1, lower beam 2 and adjustment assembly 5, upper beam 1 is located below lower beam 2, the surface of upper beam 1 is seted up round hole, and upper lifting head 3 is fixedly connected with the inner wall of round hole of upper beam 1, the surface of lower beam 2 is seted up mounting hole, and lower lifting head 4 is fixedly connected with the inner wall of mounting hole of lower beam 2, and adjustment assembly 5 is set on the lower surface of upper beam 1.

[0026] In the embodiment, the adjusting assembly 5 comprises a guide column 52, the upper surface of the lower beam 2 is fixedly connected with the guide column 52, the upper surface of the lower beam 2 is fixedly connected with a return spring 53, the free end of the return spring 53 is fixedly connected with a connecting column 51, the side surface of the connecting column 51 is fixedly connected with a connecting block 54, the surface of the connecting block 54 is provided with a limiting hole, and the connecting block 54 is sleeved with a rope 55 at the inner wall of the limiting hole;

[0027] The other end of the rope 55 is fixedly connected with a connecting sleeve ring 56, the inner arc surface of the connecting sleeve ring 56 is fixedly connected with a shaft rod 57, one side of the shaft rod 57 is provided with a linkage groove 58, the side of the lower beam 2 close to the linkage groove 58 is fixedly connected with a first supporting block 59, the side of the linkage groove 58 close to the first supporting block 59 is fixedly connected with a limiting spring 513, the free end of the limiting spring 513 is fixedly connected with a fixed block 512, the side of the fixed block 512 close to the first supporting block 59 is fixedly connected with a connecting rod 511, the side of the connecting rod 511 away from the fixed block 512 is fixedly connected with a limiting block 510, the side of the shaft rod 57 away from the first supporting block 59 is fixedly connected with a tooth block 514, the side of the lower beam 2 close to the tooth block 514 is fixedly connected with a second supporting block 515, the surface of the second supporting block 515 is provided with a through hole, and the inner wall of the through hole is fixedly connected with a positioning block 516.

[0028] Specifically, the guide column 52 is in sliding connection with the inner wall of the connecting column 51, the guide column 52 penetrates through the return spring 53, and the number of the guide columns 52 is two.

[0029] The above-mentioned components achieve the effect that the direction of the movement of the connecting column 51 is guided through the guide column 52, so that the connecting column 51 moves in a vertical direction.

[0030] Specifically, the rope 55 is wound on the outer arc surface of the shaft rod 57, and the number of the ropes 55 is two.

[0031] The above-mentioned components achieve the effect that the position of the connecting column 51 is limited through the rope 55, so that the distance between the connecting column 51 and the lower beam 2 is ensured.

[0032] Specifically, the limiting block 510 is fixedly connected with the side surface of the first supporting block 59, and the limiting block 510 is in contact with one side of the shaft rod 57.

[0033] The above-mentioned components achieve the effect that the position of the connecting rod 511 is positioned through the limiting block 510.

[0034] Specifically, the fixing blocks 512 are in contact with the inner wall of the shaft rod 57, the fixing blocks 512 are arranged in an arc shape, the number of the fixing blocks 512 is two, and the two fixing blocks 512 are symmetrically arranged at the shaft center of the shaft rod 57.

[0035] The above-mentioned component achieves the effect that the position of the limiting spring 513 and the connecting rod 511 is supported through the fixing blocks 512, and the shaft rod 57 is conveniently linked.

[0036] Specifically, the limiting spring 513 is arranged in the inside of the linkage groove 58, and the limiting spring 513 is arranged on the outer arc surface of the connecting rod 511.

[0037] The above-mentioned component achieves the effect that the shaft rod 57 is conveniently applied with a reset elastic force through the limiting spring 513.

[0038] Specifically, the inner wall of the positioning block 516 is arranged in a protruding block, the inner wall of the positioning block 516 is in contact with the tooth groove of the tooth block 514, the number of the positioning block 516 is two, and the two positioning blocks 516 are symmetrically arranged at the center of the lower hanging head 4.

[0039] The above-mentioned component achieves the effect that the position of the tooth block 514 is locked through the positioning block 516, so as to ensure the stability of the tooth block 514 in the locked state.

[0040] Working principle: when the distance between the upper beam 1 and the lower beam 2 needs to be adjusted, the worker holds the connecting ring 56 with one hand, and then pulls the shaft rod 57 towards the second supporting block 515, the shaft rod 57 moves while extruding the limiting spring 513, the limiting spring 513 is deformed by extrusion, which gradually exposes the connecting rod 511, and the tooth block 514 slides in the tooth groove of the positioning block 516, then when the tooth block 514 slides out, the worker can hold the tooth block 514 with one hand, and then rotate the tooth block 514 clockwise, the tooth block 514 drives the shaft rod 57 to rotate, while the rope 55 wound on the surface of the shaft rod 57 gradually unwinds, finally the rope 55 unwinds and loses the restriction of the return spring 53, the return spring 53 gradually rebounds upwards as the rope 55 unwinds, the rebound drives the connecting column 51 to move towards the upper beam 1, then the upper beam 1 moves while adjusting the stress between the upper hanging head 3 and the lower hanging head 4, after adjustment, the worker can release the hand holding the tooth block 514, then the limiting spring 513 loses the tension and rebounds, drives the shaft rod 57 to move towards the limiting block 510, while the tooth block 514 moves towards the positioning block 516, moves until the tooth block 514 completely enters the inside of the positioning block 516, then locks the position of the tooth block 514, the shaft rod 57 locks the position of the rope 55, then the stress of the upper beam 1 and the lower beam 2 is fixed, by setting the adjusting assembly 5, in the process of bridge operation, when facing different load states, the cable stress can be adjusted in real time, ensuring that the cable stress is uniform and within the safe stress range, avoiding premature fatigue damage of the cable due to local stress concentration, prolonging the service life of the cable, further ensuring the safety of the bridge structure.

Claims

1. A stress-adjustable bridge cable structure comprising an upper beam (1), a lower beam (2) and an adjusting assembly (5), characterized in that: The upper beam (1) is located below the lower beam (2), the surface of the upper beam (1) is provided with a round hole, the inner wall of the round hole is fixedly connected with the upper hanging head (3), the surface of the lower beam (2) is provided with a mounting hole, the inner wall of the mounting hole is fixedly connected with the lower hanging head (4), the adjusting assembly (5) is arranged on the lower surface of the upper beam (1), the adjusting assembly (5) comprises a guide column (52), the upper surface of the lower beam (2) is fixedly connected with the guide column (52), the upper surface of the lower beam (2) is fixedly connected with a return spring (53), the free end of the return spring (53) is fixedly connected with a connecting column (51), the side surface of the connecting column (51) is fixedly connected with a connecting block (54), the surface of the connecting block (54) is provided with a limiting hole, and the connecting block (54) is sleeved with a rope (55) on the inner wall of the limiting hole. The other end of the rope (55) is fixedly connected with a connecting sleeve ring (56), the inner arc surface of the connecting sleeve ring (56) is fixedly connected with a shaft rod (57), one side of the shaft rod (57) is provided with a linkage groove (58), the side of the lower beam (2) close to the linkage groove (58) is fixedly connected with a first supporting block (59), the side of the linkage groove (58) close to the first supporting block (59) is fixedly connected with a limiting spring (513), the free end of the limiting spring (513) is fixedly connected with a fixed block (512), the side of the fixed block (512) close to the first supporting block (59) is fixedly connected with a connecting rod (511), the side of the connecting rod (511) away from the fixed block (512) is fixedly connected with a limiting block (510), the side of the shaft rod (57) away from the first supporting block (59) is fixedly connected with a tooth block (514), the side of the lower beam (2) close to the tooth block (514) is fixedly connected with a second supporting block (515), the surface of the second supporting block (515) is provided with a through hole, and the inner wall of the second supporting block (515) is fixedly connected with a positioning block (516).

2. A stress-adjusting bridge cable structure according to claim 1, characterized in that: The inner wall of the guide column (52) and the connecting column (51) is slidably connected, the guide column (52) penetrates through the return spring (53), the number of the guide column (52) is two, and the two guide columns (52) are symmetrically arranged at the center of the upper beam (1).

3. The stress-adjustable bridge cable structure according to claim 1, wherein: The rope (55) is wound on the outer arc surface of the shaft rod (57), the number of the rope (55) is two, and the two ropes (55) are symmetrically arranged at the center of the connecting sleeve ring (56).

4. The stress-adjustable bridge cable structure according to claim 1, wherein: The side surface of the limiting block (510) and the first supporting block (59) is fixedly connected, and the limiting block (510) is in contact with one side of the shaft rod (57).

5. The stress-adjustable bridge cable structure according to claim 1, wherein: The inner wall of the fixed block (512) and the shaft rod (57) is in contact, the fixed block (512) is arranged in an arc shape, the number of the fixed block (512) is two, and the two fixed blocks (512) are symmetrically arranged at the axis of the shaft rod (57).

6. The stress-adjustable bridge cable structure according to claim 1, wherein: The limiting spring (513) is arranged in the inside of the linkage groove (58), and the limiting spring (513) is arranged on the outer arc surface of the connecting rod (511).

7. The stress-adjustable bridge cable structure according to claim 1, wherein: The inner wall of the positioning block (516) is in the form of a protrusion, the inner wall of the positioning block (516) is in contact with the tooth groove of the tooth block (514), and the number of the positioning blocks (516) is two, and the two positioning blocks (516) are symmetrically arranged at the center of the lower hanging head (4).

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