Grid bridge expansion joint

Abstract

The utility model discloses a grid bridge expansion joint, which relates to the technical field of cable bridges, and comprises a grid bridge and a grid expansion joint, the lower ends of four corners of the outer wall of the grid expansion joint are fixedly provided with connecting blocks, the end part of each connecting block is provided with a sleeve through a rotary connecting assembly, and the end part of each sleeve is slidably provided with a sleeve rod in a penetrating manner; a clamping ring is fixedly arranged at the end of the sleeve rod and arranged at the lower end of the grid bridge in a sleeving mode, a spring is arranged on the rod wall of the sleeve rod in a sleeving mode, the two ends of the spring are fixedly connected with the clamping ring and the sleeve respectively, an opening is formed in one side of the clamping ring, a baffle is arranged at the opening of the clamping ring, and a springback assembly is arranged between the baffle and one end of the clamping ring. According to the connecting block, the rotating assembly, the sleeve, the sleeve rod, the spring, the clamping ring, the baffle and the springback assembly, the telescopic joint and the grid bridge can be rapidly connected and positioned, meanwhile, deformation of a bridge or the bridge caused by external force such as temperature changes, earthquakes and wind power can be effectively absorbed, and the use stability of the bridge is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable trays, in particular to a grid tray expansion joint. Background Technique

[0002] The bridge expansion joint is a key connecting component in the bridge and cable tray system, which can effectively absorb the deformation of the bridge or tray caused by external forces such as temperature changes, earthquakes, and wind forces, ensuring the structural stability and safety.

[0003] After retrieval, the patent number CN210137151U discloses a new type of bridge expansion joint. The expansion joint is composed of a rectangular frame formed by an expansion joint body and a cover plate. The rectangular frame is adapted to the size of the bridge, and the bridge body is loosely connected to the expansion joint body and the cover plate by bolts. When the bridge body is displaced due to external reasons, the stress will be dispersed to the entire rectangular frame, and no stress concentration will occur on the chute, limit hole, and bolts, prolonging the service life and reliability of the expansion frame. Moreover, the bridge bodies are separated by rubber gaskets. When the bridge bodies are squeezed against each other, the force acts on the rubber, avoiding direct extrusion deformation of the bridge and damage to the internal cables. In addition, the interface of the rectangular frame is fully enclosed, with better sealing and protection effects.

[0004] During the use of the above expansion joint and the expansion joints in the prior art, bolt assemblies are used to connect and fix the corresponding parts, and the number of bolts is relatively large. The overall disassembly and assembly process will consume a lot of time for operation. At the same time, it is only applicable to conventional trays and cannot be stably connected to the side of the grid tray. Summary of the Utility Model

[0005] In view of the problems existing in the existing grid tray expansion joints, the present utility model is proposed.

[0006] Therefore, the purpose of the present utility model is to provide a grid tray expansion joint, which solves the problems that bolt assemblies are used to connect and fix the corresponding parts during the use of the expansion joint, and the number of bolts is relatively large, and the overall disassembly and assembly process will consume a lot of time for operation.

[0007] In order to achieve the above purpose, the present utility model provides the following technical solutions:

[0008] The grid tray expansion joint includes a grid tray and a grid expansion joint. At the lower ends of the four corners of the outer wall of the grid expansion joint, connection blocks are fixedly provided. At the end of each connection block, a sleeve is provided through a rotating connection assembly. A sleeve rod is slidably inserted through the end of the sleeve. A snap ring is fixedly provided at the end of the sleeve rod. The snap ring is sleeved on the lower end of the grid tray. A spring is sleeved on the rod wall of the sleeve rod. The two ends of the spring are respectively fixedly connected to the snap ring and the sleeve.

[0009] One side of the snap ring is provided with an opening, a baffle is arranged at the opening of the snap ring, and a resilient component is arranged between the baffle and one end of the snap ring.

[0010] Preferably, the rotation connection component includes a rotating ring. Rotation holes are respectively formed in the inner parts of the adjacent ends of the sleeve and the connection block, and the rotating ring is rotatably arranged in the two adjacent rotation holes.

[0011] Preferably, the resilient component includes a mounting plate. The mounting plate is fixedly connected to one end of the snap ring, and a support rod is fixedly arranged on the outer wall. The baffle is rotatably sleeved on the support rod. A limiting groove for placing the baffle is formed in the side wall of the other end of the snap ring. A torsion spring is sleeved on the rod wall of the support rod, and the two ends of the torsion spring are respectively fixedly connected to the support rod and the baffle.

[0012] Preferably, elastic straps are fixedly arranged at the four corners of the top of the grid expansion joint, and the elastic straps are sleeved on the outer sides of the upper ends of the grid bridge.

[0013] Furthermore, a rubber buffer pad is fixedly arranged on the inner wall of the snap ring.

[0014] Preferably, a push plate is fixedly arranged on the side of the baffle away from the snap ring.

[0015] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0016] 1. In the present utility model, through the provided connection block, rotation component, sleeve, sleeve rod, spring, snap ring, baffle and resilient component, the expansion joint can be quickly connected and positioned with the grid bridge, and at the same time, the deformation of the bridge or bridge caused by external forces such as temperature change, earthquake and wind force can be effectively absorbed, improving the use stability of the bridge.

[0017] 2. In the present utility model, through the provided grid bridge, grid expansion joint and elastic straps, the expansion joint can be assisted in positioning, improving the connection stability between the grid bridge and the expansion joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Figure 2 is the Figure 1 enlarged schematic view of part A of the present utility model;

[0021] Figure 3 This is a top - view structural schematic diagram of the snap ring of the present utility model.

[0022] Explanation of reference numerals in the drawings:

[0023] 1. Grid cable tray; 2. Grid expansion joint; 3. Connecting block; 4. Sleeve; 5. Sleeve rod; 6. Snap ring; 7. Spring; 8. Baffle; 9. Rotating ring; 10. Mounting plate; 11. Support rod; 12. Torsion spring; 13. Elastic binding band; 14. Rubber buffer pad; 15. Push plate. Detailed implementation manners

[0024] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be further introduced in detail below with reference to the drawings.

[0025] An embodiment of the present utility model discloses a grid cable tray expansion joint.

[0026] The present utility model provides a grid cable tray expansion joint as shown in Figures 1 - 3 The grid cable tray expansion joint includes a grid cable tray 1 and a grid expansion joint 2. At the lower ends of the four corners of the outer wall of the grid expansion joint 2, connecting blocks 3 are fixedly provided. At the end of each connecting block 3, a sleeve 4 is provided through a rotating connection assembly. The rotating connection assembly includes a rotating ring 9. Rotating holes are respectively opened in the inner parts of the adjacent ends of the sleeve 4 and the connecting block 3. The rotating ring 9 is rotatably arranged in the two adjacent rotating holes. The end of the sleeve 4 is slidably penetrated by a sleeve rod 5. The end of the sleeve rod 5 is fixedly provided with a snap ring 6. The snap ring 6 is sleeved on the lower end of the grid cable tray 1. A spring 7 is sleeved on the rod wall of the sleeve rod 5. The two ends of the spring 7 are respectively fixedly connected with the snap ring 6 and the sleeve 4. A rubber buffer pad 14 is fixedly provided on the inner wall of the snap ring 6.

[0027] After the grid cable tray 1 is installed, the grid expansion joint 2 can be arranged on the outer side of the end of the grid cable tray 1, and the two snap rings 6 on the same side are sleeved on the outside of the grid of the grid expansion joint 2. When the grid cable trays 1 at both ends of the grid expansion joint 2 are all installed, the setting of the grid expansion joint 2 can be completed. At this time, when the cable tray expands and contracts due to temperature changes, through the setting of the spring 7, the connection between the bridge and the expansion joint 2 can be made stable, and the rebound and stretching can be effectively offset. At the same time, the rotational cooperation between the rotating ring 9 and the two rotating holes can also effectively offset the deformation, so that the expansion joint can absorb the deformation of the cable tray caused by various factors, improving the use stability of the cable tray. At the same time, the setting of the rubber buffer pad 14 can buffer and protect the connection between the snap ring 6 and the grid cable tray 1, and try to avoid the wear of the cable tray.

[0028] In order to enable the snap ring 6 to be stably and quickly arranged on the outside of the grid cable tray 1, as shown in Figures 2 - 3As shown, one side of the snap ring 6 is provided with an opening. A baffle 8 is provided at the opening of the snap ring 6. The resilience assembly includes a mounting plate 10. The mounting plate 10 is fixedly connected to one end of the snap ring 6, and a support rod 11 is fixedly provided on the outer wall. The baffle 8 is rotatably sleeved on the support rod 11. A limiting groove for placing the baffle 8 is formed on the side wall of the other end of the snap ring 6. A torsion spring 12 is sleeved on the rod wall of the support rod 11. Two ends of the torsion spring 12 are respectively fixedly connected to the support rod 11 and the baffle 8. A push plate 15 is fixedly provided on the side of the baffle 8 away from the snap ring 6.

[0029] When installing the snap ring 6, the opening of the snap ring 6 can be leaned against the grid cable bridge 1. At this time, the baffle 8 is pushed and rotates around the support rod 10, and the torsion spring 12 is twisted. When the snap ring 6 is completely sleeved outside the grid cable bridge 1, due to the torque recovery of the torsion spring 12, the baffle 8 can quickly rotate back and be arranged in the limiting groove. At this time, the position of the snap ring 6 can be determined. When it is necessary to disassemble the snap ring 6, by pushing the push plate 15, the baffle 8 can be made to enter the snap ring 6, and then the snap ring 6 can be pulled out from the grid of the grid cable bridge 1.

[0030] And in order to further improve the connection stability between the grid expansion joint 2 and the grid cable bridge 1, as Figure 1 shown, elastic straps 13 are fixedly provided at the four corners of the top of the grid expansion joint 2. The elastic straps 13 are sleeved on the outer side of the upper end of the grid cable bridge 1.

[0031] After multiple snap rings 6 are connected to two adjacent grid cable bridges 1, the elastic straps 13 can be sleeved on the outer side of the end of the grid cable bridge 1 to assist in positioning the grid expansion joint 2 and improve the connection stability.

[0032] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. Grid bridge expansion joint, including a grid bridge (1) and a grid expansion joint (2), characterized in that, At the lower ends of the four corners of the outer wall of the grid expansion joint (2), connecting blocks (3) are fixedly arranged. The end of each connecting block (3) is provided with a sleeve (4) through a rotating connection assembly. A sleeve rod (5) is slidably penetrated through the end of the sleeve (4). A clamping ring (6) is fixedly arranged at the end of the sleeve rod (5). The clamping ring (6) is sleeved on the lower end of the grid bridge (1). A spring (7) is sleeved on the rod wall of the sleeve rod (5). The two ends of the spring (7) are fixedly connected to the clamping ring (6) and the sleeve (4) respectively; An opening is arranged on one side of the clamping ring (6). A baffle (8) is arranged at the opening of the clamping ring (6). A rebounding assembly is arranged between the baffle (8) and one end of the clamping ring (6).

2. The telescopic joint of the grid cable tray according to claim 1, characterized in that The rotating connection assembly includes a rotating ring (9). Rotating holes are respectively formed in the inner parts of the adjacent ends of the sleeve (4) and the connecting block (3). The rotating ring (9) is rotatably arranged in the two adjacent rotating holes.

3. The telescopic joint of the grid cable tray according to claim 1, characterized in that, The rebounding assembly includes a mounting plate (10). The mounting plate (10) is fixedly connected to one end of the clamping ring (6), and a support rod (11) is fixedly arranged on the outer wall. The baffle (8) is rotatably sleeved on the support rod (11). A limiting groove for placing the baffle (8) is formed in the side wall of the other end of the clamping ring (6). A torsion spring (12) is sleeved on the rod wall of the support rod (11). The two ends of the torsion spring (12) are fixedly connected to the support rod (11) and the baffle (8) respectively.

4. The telescopic joint of the grid cable tray according to claim 1, characterized in that, Elastic straps (13) are fixedly arranged at the four corners of the top of the grid expansion joint (2). The elastic straps (13) are sleeved on the outer side of the upper end of the grid bridge (1).

5. The telescopic joint of the grid cable tray according to claim 1, characterized in that A rubber buffer pad (14) is fixedly arranged on the inner wall of the clamping ring (6).

6. The telescopic joint of the grid cable tray according to claim 1, characterized in that A push plate (15) is fixedly arranged on the side of the baffle (8) away from the clamping ring (6).

Images