Anti-seismic bridge

Abstract

The utility model relates to the technical field of cable bridges, in particular to an anti-seismic bridge which comprises a U-shaped groove and a connecting rod, positioning blocks are fixedly connected to the two sides of the two ends of the U-shaped groove, a positioning cylinder is fixedly connected to one side of each positioning block, a spring is connected to the outer surface of each positioning cylinder in a sleeved mode, a plurality of sliding grooves are formed in the outer surface of each positioning cylinder, and the connecting rod is fixedly connected to the U-shaped groove. A guide groove is formed in one side of the positioning block, universal joints are fixedly installed at the two ends of the connecting rod, guide rods are fixedly installed at the ends, away from the connecting rod, of the universal joints, a plurality of sliding blocks are fixedly connected to the outer surfaces of the ends, away from the universal joints, of the guide rods, and positioning sleeves are fixedly connected to the outer surfaces of the sliding blocks. The damping device has the advantages that the two adjacent U-shaped grooves are connected together through the connecting rod, the two ends of one connecting rod correspond to the two springs respectively, the damping device is used for buffering and damping, consumables are small, the damping device is lighter, the springs are arranged outside the U-shaped grooves, assembling is easy, the production cost is reduced, and popularization is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of cable trays, and particularly relates to an earthquake-resistant cable tray. Background Art

[0002] A cable tray is a tool for cable routing and is used for laying overhead cable lines. The cable tray needs to have a certain earthquake-resistant function to avoid problems such as deformation and damage of the cable tray caused by vibration. A common earthquake-resistant measure for cable trays is to set up earthquake-resistant structures on the supports and hangers to achieve the purpose of earthquake resistance. However, when two adjacent cable trays are connected, an expansion joint is usually used for connection. The expansion joint forms a whole for the two adjacent cable trays, and the overall length is large. Moreover, the expansion joint is designed for the thermal expansion and contraction of the cable tray material and does not have earthquake-resistant performance. Therefore, during the vibration process, the connection part between two adjacent cable trays is prone to damage.

[0003] A seismic and fracture-resistant aluminum alloy cable tray disclosed in Chinese Patent CN218242902U. For this seismic and fracture-resistant aluminum alloy cable tray, the connecting piece adopts a double-layer plate structure of an outer side fixing plate and an inner side fixing plate, which improves the connection strength and enhances the anti-fracture effect of the connection between cable trays. Moreover, the circular screw hole plate in the connecting piece is installed in the circular hole under the action of the transverse spring column and the longitudinal spring column, so that when vibration occurs, the circular screw hole plate can vibrate up, down, left and right, thereby reducing the vibration between adjacent cable trays and buffering the vibration pressure borne by the connecting piece, improving the seismic resistance of the structure. However, while solving the problem, this seismic and fracture-resistant aluminum alloy cable tray has the following defects:

[0004] Spring columns need to be arranged around the circular screw hole plate. Therefore, the expansion plate needs to be set thicker and larger to ensure that a larger circular hole can be opened to ensure that spring columns with sufficient elasticity can be installed. Therefore, the whole is relatively bulky, and the setting of multiple circular screw hole plates requires four times the number of spring columns. The overall consumption of materials is large, the production and assembly are difficult, resulting in high costs and inconvenience for popularization. Summary of the Utility Model

[0005] The purpose of the utility model aims to solve at least one of the technical defects described in the background art.

[0006] For this reason, an object of the utility model is to provide an earthquake-resistant cable tray, aiming to solve the problems of large overall material consumption, difficult production and assembly, high cost and inconvenience for popularization of the existing seismic and fracture-resistant aluminum alloy cable tray in the prior art.

[0007] To achieve the above object, an embodiment of one aspect of the present utility model provides an earthquake-resistant cable tray, which includes a U-shaped groove and a connecting rod. On both sides of the two ends of the U-shaped groove, positioning blocks are fixedly connected. On one side of the positioning block, a positioning cylinder is fixedly connected. A spring is sleeved on the outer surface of the positioning cylinder. A plurality of sliding grooves are formed on the outer surface of the positioning cylinder, and a guiding groove is formed on one side of the positioning block;

[0008] Universal joints are fixedly installed at both ends of the connecting rod. A guiding rod is fixedly installed at one end of the universal joint away from the connecting rod. A plurality of sliding blocks are fixedly connected to the outer surface of the guiding rod away from the universal joint, and a positioning sleeve is fixedly connected to the outer surfaces of the plurality of sliding blocks.

[0009] Preferably, a rubber plate is fixedly installed at the bottom between two adjacent U-shaped grooves to block the gap at the bottom between two adjacent U-shaped grooves, preventing the wire harness inside the cable tray from being exposed. Moreover, the rubber plate is elastic and will not affect the earthquake-resistant performance.

[0010] Compared with the prior art, the advantages and beneficial effects of the present utility model are as follows:

[0011] 1. Two adjacent U-shaped grooves are connected together by a connecting rod. The two ends of one connecting rod respectively correspond to two springs for buffering and shock absorption, with less consumables, making it lighter. Moreover, the springs are arranged outside the U-shaped groove, which is easy to assemble and reduces production costs. Therefore, it is conducive to promotion.

[0012] 2. Universal joints are arranged at both ends of the connecting rod. Therefore, the connecting rod can move in multiple directions relative to the guiding rod, with a simple and flexible structure, and can overcome vibrations in different directions.

[0013] 3. By setting the positioning cylinder, the spring is sleeved on the surface of the positioning cylinder, and the positioning sleeve at the end of the guiding rod is also sleeved on the surface of the positioning cylinder. Therefore, the spring provides a supporting force for the positioning sleeve. Thus, during vibration, the spring will only generate deformation in its axial direction and will not bend, so as to avoid the problem that the spring bends and deforms, affecting the elastic force, and extending the service life of the spring.

[0014] 4. By setting the rubber plate, the bottom of the gap between two adjacent U-shaped grooves can be blocked, preventing the wire harness in the U-shaped groove from being exposed. Moreover, the rubber plate is elastic, which not only does not affect earthquake resistance and fracture resistance but also assists the spring in providing a buffering force, further extending the service life of the spring.

[0015] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0017] Figure 1 It is a schematic structural view of the present utility model.

[0018] Figure 2 It is a schematic structural view of the U-shaped groove and the U-shaped cover plate of the present utility model.

[0019] Figure 3 It is a schematic structural view of the connecting rod of the present utility model.

[0020] Figure 4 It is a schematic structural view of the rubber plate of the present utility model.

[0021] Wherein: 1. U-shaped groove, 11. Second through hole, 12. Nut, 13. Threaded barrel, 2. Positioning block, 21. Positioning cylinder, 22. Spring, 23. Chute, 24. Guide groove, 3. Connecting rod, 31. Universal joint, 32. Guide rod, 33. Slide block, 34. Positioning sleeve, 4. U-shaped cover plate, 41. First through hole, 5. Rubber plate, 51. Positioning hole. Specific embodiments

[0022] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model and should not be construed as limiting the present utility model.

[0023] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] The present utility model provides an earthquake-resistant bridge frame.

[0025] Embodiment 1:

[0026] As Figures 1-3 shown, it includes a U-shaped groove 1 and a connecting rod 3. On both sides of both ends of the U-shaped groove 1, positioning blocks 2 are fixedly connected. On one side of the positioning block 2, a positioning cylinder 21 is fixedly connected. As Figure 2As shown in the figure, two positioning cylinders 21 are respectively fixed on the opposite side surfaces of two positioning blocks 2 on one side of the U-shaped groove 1. A spring 22 is sleeved on the outer surface of the positioning cylinder 21. A plurality of sliding grooves 23 are formed on the outer surface of the positioning cylinder 21. A guiding groove 24 is formed on one side of the positioning block 2. The guiding groove 24 penetrates through the positioning block 2 and is coaxial with the positioning cylinder 21.

[0027] Universal joints 31 are fixedly installed at both ends of the connecting rod 3. One end of the universal joint 31 away from the connecting rod 3 is fixedly installed with a guiding rod 32. A plurality of sliding blocks 33 are fixedly connected to the outer surface of the end of the guiding rod 32 away from the universal joint 31. The number of the sliding blocks 33 is the same as that of the sliding grooves 23. A positioning sleeve 34 is fixedly connected to the outer surfaces of the plurality of sliding blocks 33.

[0028] Specifically, the positioning sleeve 34 is slidably sleeved on the outer surface of the positioning cylinder 21, so that the plurality of sliding blocks 33 are respectively slidably connected inside the plurality of sliding grooves 23. The guiding rod 32 is slidably inserted inside the guiding groove 24, and the guiding rod 32 penetrates through the positioning block 2.

[0029] Specifically, a U-shaped cover plate 4 is fixedly installed on the top of the U-shaped groove 1. First through holes 41 are formed on both sides of the U-shaped cover plate 4. Second through holes 11 are formed on both sides of the U-shaped groove 1. A nut 12 is fixedly connected to the position of the inner wall of the U-shaped groove 1 corresponding to the second through hole 11. A bolt passes through the first through hole 41 and the second through hole 11 and is threadedly connected to the nut 12, so as to fix the U-shaped cover plate 4 on the top of the U-shaped groove 1.

[0030] Embodiment 2:

[0031] As Figure 1 、 Figure 2 and Figure 4 shown in the figure, on the basis of Embodiment 1, a rubber plate 5 is fixedly installed at the bottom between two adjacent U-shaped grooves 1. Threaded cylinders 13 are fixedly connected to the bottoms of both ends of the U-shaped groove 1. Positioning holes 51 are formed on both sides of the top of the rubber plate 5. The rubber plate 5 is sleeved on the outer surface of the threaded cylinder 13 through the positioning holes 51, and then a bolt is threadedly connected inside the threaded cylinder 13, so as to fix the rubber plate 5 at the bottom between two adjacent U-shaped grooves 1.

[0032] The working principle of the present utility model is as follows: When in use, after the U-shaped groove 1 is suspended on the top of the wall through the support hanger, when connecting two adjacent U-shaped grooves 1, the spring 22 is sleeved on the outer surface of the positioning cylinder 21. First, the guide rod 32 is inserted into the middle of the positioning cylinder 21 and penetrates through the guide groove 24. At this time, multiple sliders 33 are respectively slidably connected inside multiple chute grooves 23, and the positioning sleeve 34 is slidably sleeved on the outer surface of the positioning cylinder 21. Finally, a universal joint 31 is installed at the end of the guide rod 32, and the other end of the universal joint 31 is fixedly installed with the connecting rod 3. During the vibration process, the two U-shaped grooves 1 correspondingly generate vibrations. At this time, the two adjacent U-shaped grooves 1 are subjected to the traction force of the connecting rod 3, and the spring 22 is stretched or shortened under force. Thus, the two adjacent U-shaped grooves 1 will not separate, and the universal joints 31 at both ends of the connecting rod 3 can move at multiple angles, so as to buffer the vibrations in multiple directions of the U-shaped groove 1 accordingly.

[0033] Compared with the prior art, the present utility model has the following beneficial effects relative to the prior art:

[0034] 1. Two adjacent U-shaped grooves 1 are connected together by the connecting rod 3. Both ends of one connecting rod 3 respectively correspond to two springs 22, which are used for buffering and shock absorption, with less consumables, thus being lighter. Moreover, the springs 22 are arranged outside the U-shaped groove 1, so they are easy to assemble, reducing the production cost. Therefore, it is conducive to promotion.

[0035] 2. Universal joints 1 are arranged at both ends of the connecting rod 3. Therefore, the connecting rod 3 can move in multiple directions relative to the guide rod 32, with a simple and flexible structure, and can overcome vibrations in different directions.

[0036] 3. By arranging the positioning cylinder 21, the spring 22 is sleeved on the surface of the positioning cylinder 21, and the positioning sleeve 34 at the end of the guide rod 32 is also sleeved on the surface of the positioning cylinder 21. Therefore, the spring 22 provides a supporting force for the positioning sleeve 34. Thus, during the vibration process, the spring 22 will only generate deformation in its axial direction and will not bend and deform. Therefore, the problem that the spring 22 bends and deforms, resulting in the influence of the elastic force, can be avoided, and the service life of the spring 22 is prolonged.

[0037] 4. By arranging the rubber plate 6, the bottom of the gap between two adjacent U-shaped grooves 1 can be blocked, so as to prevent the wire harness in the U-shaped groove 1 from being exposed. Moreover, the rubber plate 6 has elasticity, which not only does not affect earthquake resistance and fracture resistance, but also can assist the spring 22 to provide a buffering force, so as to further prolong the service life of the spring 22.

Claims

1. An earthquake-resistant cable tray, comprising a U-shaped groove (1) and a connecting rod (3), characterized in that, Both sides of the two ends of the U-shaped groove (1) are fixedly connected with positioning blocks (2). One side of the positioning block (2) is fixedly connected with a positioning cylinder (21). A spring (22) is sleeved on the outer surface of the positioning cylinder (21). A plurality of sliding grooves (23) are formed on the outer surface of the positioning cylinder (21). A guiding groove (24) is formed on one side of the positioning block (2). Universal joints (31) are fixedly installed at both ends of the connecting rod (3). A guiding rod (32) is fixedly installed at one end of the universal joint (31) far away from the connecting rod (3). A plurality of sliding blocks (33) are fixedly connected to the outer surface of the guiding rod (32) at one end far away from the universal joint (31). A positioning sleeve (34) is fixedly connected to the outer surfaces of the plurality of sliding blocks (33).

2. The seismic bridge support according to claim 1, wherein, The positioning sleeve (34) is slidably sleeved on the outer surface of the positioning cylinder (21). The plurality of sliding blocks (33) are respectively slidably connected inside the plurality of sliding grooves (23). The guiding rod (32) is slidably inserted inside the guiding groove (24).

3. The seismic cable tray according to claim 1, characterized in that, A U-shaped cover plate (4) is fixedly installed on the top of the U-shaped groove (1).

4. The seismic bridge support according to claim 3, wherein First through holes (41) are formed on both sides of the U-shaped cover plate (4). Second through holes (11) are formed on both sides of the U-shaped groove (1). A nut (12) is fixedly connected to the position on the inner wall of the U-shaped groove (1) corresponding to the second through hole (11).

5. The seismic cable tray according to claim 1, wherein A rubber plate (5) is fixedly installed at the bottom between two adjacent U-shaped grooves (1).

6. The seismic cable tray according to claim 5, wherein, Threaded cylinders (13) are fixedly connected to the bottoms of the two ends of the U-shaped groove (1). Positioning holes (51) are formed on both sides of the top of the rubber plate (5).

Images