Aluminum alloy cable bridge with good stability

Abstract

The utility model relates to the technical field of cable bridges, in particular to an aluminum alloy cable bridge with good stability, which comprises a U-shaped bracket, a telescopic joint and a U-shaped cover plate, and is characterized in that the telescopic joint comprises a U-shaped groove and two connecting plates, first grooves are formed in the two sides of the U-shaped groove, second grooves are formed in one sides of the connecting plates, and the U-shaped bracket is connected with the two connecting plates. Positioning strips are fixedly connected to the inner walls of the two sides of the U-shaped bracket; first avoiding grooves are formed in the two sides of the U-shaped groove correspondingly, and a second avoiding groove is formed in one side of the connecting plate. The U-shaped bracket has the advantages that when the two adjacent U-shaped brackets are connected together through the telescopic joint, the sliding blocks on the two connecting plates are inserted into the sliding grooves in the two sides of the U-shaped grooves respectively, then the first grooves and the second grooves are slidably arranged on the surfaces of the positioning strips on the inner walls of the two adjacent U-shaped brackets in a sleeving mode respectively, bolts and nuts are not needed in the assembling operation, and therefore operation is easy, and the assembling efficiency is improved. Therefore, the installation efficiency of the cable bridge can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable trays, and particularly relates to an aluminum alloy cable tray with good stability. Background Technique

[0002] A cable tray is a commonly used bracket for laying cables, usually fixed on a wall or suspended from the top of a wall. Common cable trays mainly include a U-shaped bracket, an expansion joint, and a cover plate. The cover plate is fixed on the top of the U-shaped bracket to close the opening at the top of the U-shaped bracket, and the function of the expansion joint is to connect two adjacent U-shaped brackets together.

[0003] Considering the thermal expansion and contraction of the cable tray, when installing the U-shaped brackets, a gap is left between two adjacent U-shaped brackets. The expansion joint is also U-shaped. During installation, the expansion joint is sleeved into from the bottom of two adjacent U-shaped brackets. There are sliding grooves on both sides of the expansion joint, and a plurality of through holes are opened at the positions corresponding to the sliding grooves at the ends of the U-shaped brackets. By using a plurality of bolts to respectively penetrate the plurality of through holes and the sliding grooves, and then screwing a plurality of nuts onto the bolts, two adjacent U-shaped brackets are connected together. And during the process of thermal expansion and contraction of the cable tray, the bolts can slide in the sliding grooves, thus avoiding the problem that during the process of thermal expansion and contraction of the cable tray, two adjacent cable trays are mutually extruded or separated, resulting in the overall deformation of the cable tray or the fracture of the connection part, and ensuring the stability of the cable tray. However, during the installation process of the expansion joint, there are the following defects:

[0004] Since a plurality of bolts and nuts are required when the expansion joint connects two adjacent U-shaped brackets, when connecting the nut and the bolt, first, a wrench tool is needed to fix the bolt or the nut, and then another wrench is used to rotate the bolt or the nut. Therefore, the overall operation is relatively complex, resulting in low installation efficiency of the cable tray. Content 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 technique.

[0006] Therefore, an object of the utility model is to provide an aluminum alloy cable tray with good stability, aiming to solve the problem of low efficiency during the installation of the existing cable tray in the prior art.

[0007] To achieve the above object, an embodiment of one aspect of the utility model provides an aluminum alloy cable tray with good stability, including a U-shaped bracket, an expansion joint, and a U-shaped cover plate. The expansion joint includes a U-shaped groove and two connecting plates. First grooves are opened on both sides of the U-shaped groove, and second grooves are opened on one side of the connecting plate. Positioning strips are fixedly connected to the inner walls on both sides of the U-shaped bracket;

[0008] Both sides of the U-shaped groove are provided with first avoidance grooves, one side of the connecting plate is provided with a second avoidance groove, both sides of the U-shaped groove are provided with sliding grooves, one side of the connecting plate is fixedly connected with a sliding block, and the sliding block is slidably connected in the sliding groove;

[0009] The U-shaped cover plate is fixedly installed on the top of the U-shaped bracket.

[0010] Preferably, according to any of the above solutions, the number of the sliding blocks is multiple, which improves the connection stability between two adjacent U-shaped brackets.

[0011] Preferably, according to any of the above solutions, one end of the sliding block away from the connecting plate is fixedly connected with a limiting block, and one end of the sliding groove is provided with a jack, which is convenient for the installation of the expansion joint.

[0012] Preferably, according to any of the above solutions, the top wall of the U-shaped cover plate is fixedly connected with a reinforcing rib, which avoids the problem of deformation of the expansion joint and improves the overall stability.

[0013] Compared with the prior art, the advantages and beneficial effects of the present utility model are as follows:

[0014] 1. When using the expansion joint to connect two adjacent U-shaped brackets together, insert the sliding blocks on the two connecting plates into the sliding grooves on both sides of the U-shaped groove respectively, and then slide the first groove and the second groove onto the surfaces of the positioning strips on the inner walls of two adjacent U-shaped brackets respectively. The assembly operation does not require the use of bolts and nuts, so the operation is simple, thus improving the installation efficiency of the cable tray.

[0015] 2. By arranging a plurality of sliding blocks which are slidably connected with the sliding grooves, the connecting plate will not rotate around the sliding block. Therefore, when the bridge resonates due to external force factors, the connecting plate will not rotate around the sliding block and finally get stuck in the gap between two adjacent U-shaped brackets, improving the connection stability of the expansion joint.

[0016] 3. By arranging a limiting block at the end of the sliding block and a jack at one end of the sliding groove, when assembling the expansion joint, the limiting block penetrates through the sliding groove through the jack, and then slide the sliding block to stagger the limiting block and the jack. At this time, pick up the expansion joint, and the U-shaped groove and the connecting plate will not separate, thus facilitating the installation of the expansion joint in two adjacent U-shaped brackets and further improving the assembly efficiency of the cable tray.

[0017] 4. By arranging a reinforcing rib on the top of the U-shaped cover plate, not only can the firmness of the U-shaped cover plate be improved and the size of its deformation be reduced, but also the reinforcing rib and the side wall of the U-shaped cover plate can clamp the side wall of the U-shaped bracket and the expansion joint, thus avoiding the problem that the side wall of the U-shaped groove is stressed and bent inward, resulting in the separation of the first groove from the positioning strip and the subsequent separation of the second groove from the positioning strip, further improving the structural stability.

[0018] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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, in which:

[0020] Figure 1 is a schematic structural view of the present utility model.

[0021] Figure 2 is a schematic structural view of the U-shaped cover plate of the present utility model.

[0022] Figure 3 is a schematic structural view of the expansion joint in the second embodiment of the present utility model.

[0023] Figure 4 is a schematic structural view of the preferred solution of the expansion joint in the second embodiment of the present utility model.

[0024] Figure 5 is a schematic structural view of the expansion joint in the third embodiment of the present utility model.

[0025] Figure 6 is a schematic structural view of the preferred solution of the expansion joint in the third embodiment of the present utility model.

[0026] Wherein: 1. U-shaped bracket, 11. Positioning strip, 12. First through hole, 13. Nut, 2. Expansion joint, 21. U-shaped groove, 211. First groove, 212. First avoidance groove, 213. Slide groove, 214. Insertion hole, 22. Connecting plate, 221. Second groove, 222. Second avoidance groove, 223. Slide block, 224. Limit block, 3. U-shaped cover plate, 31. Second through hole, 32. Reinforcing rib. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the drawings, in which 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 with reference 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.

[0028] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation", etc. shall 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 a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. 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 circumstances.

[0029] The present utility model provides an aluminum alloy cable tray with good stability.

[0030] Embodiment 1:

[0031] As Figures 1-3 shown, it includes a U-shaped bracket 1, an expansion joint 2, and a U-shaped cover plate 3. The U-shaped bracket 1, the expansion joint 2, and the U-shaped cover plate 3 are all made of aluminum alloy material. The expansion joint 2 includes a U-shaped groove 21 and two connecting plates 22. First grooves 211 are opened on both sides of the U-shaped groove 21, and second grooves 221 are opened on one side of the connecting plate 22. Positioning strips 11 are fixedly connected to the inner walls on both sides of the U-shaped bracket 1. The first grooves 211 and the second grooves 221 are respectively slidably connected to the positioning strips 11 on the inner walls of the adjacent two U-shaped brackets 1;

[0032] First avoidance grooves 212 are opened on both sides of the U-shaped groove 21 to avoid the connecting plate 22. Second avoidance grooves 222 are opened on one side of the connecting plate 22 to avoid the side wall of the U-shaped groove 21. Slide grooves 213 are opened on both sides of the U-shaped groove 21, and a slider 223 is fixedly connected to one side of the connecting plate 22. The slider 223 is slidably connected in the slide groove 213, so that the U-shaped groove 21 and the connecting plate 22 support each other, thereby connecting the adjacent two U-shaped brackets 1 together;

[0033] As Figures 1-2 shown, first through holes 12 are opened on both sides of the U-shaped bracket 1, nuts 13 are fixedly connected to the positions corresponding to the first through holes 12 on the inner wall of the U-shaped bracket 1. Second through holes 31 are opened on both sides of the U-shaped cover plate 3. By inserting bolts into the second through holes 31 and threading them through the first through holes 12 and threadedly connecting with the nuts 13, the U-shaped cover plate 3 can be fixedly installed on the top of the U-shaped bracket 1.

[0034] Embodiment 2:

[0035] As Figure 3As shown, on the basis of Embodiment 1, the number of sliders 223 is multiple, and the multiple sliders 223 are arranged horizontally and evenly. The multiple sliders 223 are slidably connected to the chute 213, so that the connecting plate 22 will not rotate around the slider 223. Therefore, when the bridge frame resonates due to external force factors, the connecting plate 22 will not rotate around the slider 223, and finally cause the problem of getting stuck in the gap between two adjacent U-shaped brackets 1, improving the stability of the connection of the expansion joint 2.

[0036] Preferably, as Figure 4 shown, one end of a slider 223 away from the connecting plate 22 is fixedly connected with a limiting block 224. One end of the chute 213 is provided with a jack 214. When assembling the expansion joint 2, the limiting block 224 passes through the chute 213 through the jack 214, and then the slider 223 is slid to stagger the limiting block 224 from the jack 214. At this time, when the expansion joint 2 is picked up, the U-shaped groove 21 and the connecting plate 22 will not separate, facilitating the installation of the expansion joint 2 in two adjacent U-shaped brackets 1.

[0037] Embodiment 3:

[0038] As Figure 5 shown, on the basis of Embodiment 1, the number of sliders 223 is multiple, and the multiple sliders 223 are arranged vertically and evenly. And corresponding to both sides of the U-shaped groove 21, a plurality of chutes 213 are provided. The multiple sliders 223 are respectively slidably connected to the multiple chutes 213, so that the connecting plate 22 will not rotate around the slider 223. Therefore, when the bridge frame resonates due to external force factors, the connecting plate 22 will not rotate around the slider 223, and finally cause the problem of getting stuck in the gap between two adjacent U-shaped brackets 1, improving the stability of the connection of the expansion joint 2.

[0039] Preferably, as Figure 6 shown, one end of the slider 223 away from the connecting plate 22 is fixedly connected with a limiting block 224. One end of the chute 213 is provided with a jack 214. When assembling the expansion joint 2, the limiting block 224 passes through the chute 213 through the jack 214, and then the slider 223 is slid to stagger the limiting block 224 from the jack 214. At this time, when the expansion joint 2 is picked up, the U-shaped groove 21 and the connecting plate 22 will not separate, facilitating the installation of the expansion joint 2 in two adjacent U-shaped brackets 1.

[0040] Embodiment 4:

[0041] As Figure 2As shown, based on the first embodiment, the second embodiment, or the third embodiment, a reinforcing rib 32 is fixedly connected to the top wall of the U-shaped cover plate 3. The reinforcing rib 32 can enhance the firmness of the U-shaped cover plate 3 and reduce the magnitude of its deformation. Moreover, the reinforcing rib 32 and the side wall of the U-shaped cover plate 3 can clamp the side wall of the U-shaped bracket 1 and the expansion joint 2, thereby avoiding the problem that the side wall of the U-shaped groove 211 is forced to bend inward, resulting in the separation of the first groove 211 from the positioning strip 11 and the subsequent separation of the second groove 221 from the positioning strip 11.

[0042] The working principle of the present utility model is as follows: During use, the U-shaped bracket 1 is fixed in a bracket on the top of a wall or on a wall, and a certain gap is left between two adjacent U-shaped brackets 1. Then, the U-shaped groove 21 and the connecting plate 22 are assembled together to form the expansion joint 2. By sliding the slider 223 in the sliding groove 213, the distance between the first groove 211 and the second groove 221 is adjusted. Then, the first groove 211 and the second groove 221 are respectively slidably sleeved on the surface of the positioning strip 11 on the inner wall of two adjacent U-shaped brackets 1, thereby connecting the two adjacent U-shaped brackets 1 together. Then, the U-shaped cover plate 3 is buckled on the top of the U-shaped bracket 1, and the U-shaped cover plate 3 is fixed on the top of the U-shaped bracket 1 using bolts.

[0043] Compared with the prior art, the present utility model has the following beneficial effects compared to the prior art:

[0044] 1. When using the expansion joint 2 to connect two adjacent U-shaped brackets 1 together, the sliders 223 on the two connecting plates 22 are respectively inserted into the sliding grooves 213 on both sides of the U-shaped groove 21, and then the first groove 211 and the second groove 221 are respectively slidably sleeved on the surface of the positioning strip 11 on the inner wall of two adjacent U-shaped brackets 1. The assembly operation does not require the use of bolts and nuts, so the operation is simple, thereby improving the installation efficiency of the cable tray.

[0045] 2. By providing a plurality of sliders 223, the plurality of sliders 223 are slidably connected to the sliding grooves 213, so that the connecting plate 22 does not rotate around the slider 223. Therefore, when the bridge resonates due to external force factors, the connecting plate 22 does not rotate around the slider 223, ultimately resulting in the problem of getting stuck in the gap between two adjacent U-shaped brackets 1, thus improving the stability of the connection of the expansion joint 2.

[0046] 3. By providing a limit block 224 at the end of the slider 223 and providing a jack 214 at one end of the sliding groove 213, when assembling the expansion joint 2, the limit block 224 passes through the sliding groove 213 through the jack 214, and then the slider 223 is slid to stagger the limit block 224 from the jack 214. At this time, when picking up the expansion joint 2, the U-shaped groove 21 and the connecting plate 22 will not separate, thereby facilitating the installation of the expansion joint 2 in two adjacent U-shaped brackets 1 and further improving the assembly efficiency of the cable tray.

[0047] 4. By providing reinforcing ribs 32 on the top of the U-shaped cover plate 3, not only can the firmness of the U-shaped cover plate 3 be improved and the magnitude of its deformation be reduced, but also the reinforcing ribs 32 and the side wall of the U-shaped cover plate 3 can clamp the side wall of the U-shaped bracket 1 and the expansion joint 2, thereby avoiding the problem that the side wall of the U-shaped groove 211 is forced to bend inward, resulting in the separation of the first groove 211 from the positioning strip 11 and the subsequent separation of the second groove 221 from the positioning strip 11, further enhancing the structural stability.

Claims

1. An aluminum alloy cable tray with good stability, comprising a U-shaped bracket (1), an expansion joint (2) and a U-shaped cover plate (3), characterized in that, The expansion joint (2) includes a U-shaped groove (21) and two connecting plates (22). First grooves (211) are formed on both sides of the U-shaped groove (21), and a second groove (221) is formed on one side of the connecting plate (22). Positioning strips (11) are fixedly connected to the inner walls on both sides of the U-shaped bracket (1). First avoidance grooves (212) are formed on both sides of the U-shaped groove (21), and second avoidance grooves (222) are formed on one side of the connecting plate (22). Sliding grooves (213) are formed on both sides of the U-shaped groove (21), and a slider (223) is fixedly connected to one side of the connecting plate (22). The slider (223) is slidably connected in the sliding groove (213). The U-shaped cover plate (3) is fixedly installed on the top of the U-shaped bracket (1).

2. The aluminum alloy cable tray with good stability according to claim 1, characterized in that, The number of the sliders (223) is multiple.

3. The aluminum alloy cable tray with good stability according to claim 2, wherein, The multiple sliders (223) are arranged horizontally and evenly.

4. The aluminum alloy cable tray with good stability according to claim 2, wherein, The multiple sliders (223) are arranged vertically and evenly.

5. The aluminum alloy cable tray with good stability according to any one of claims 1-4, characterized in that A limiting block (224) is fixedly connected to one end of the slider (223) away from the connecting plate (22), and a jack (214) is formed at one end of the sliding groove (213).

6. The aluminum alloy cable tray with good stability according to claim 1, characterized in that, First through holes (12) are formed on both sides of the U-shaped bracket (1), and nuts (13) are fixedly connected to the positions on the inner wall of the U-shaped bracket (1) corresponding to the first through holes (12). Second through holes (31) are formed on both sides of the U-shaped cover plate (3).

7. The aluminum alloy cable tray with good stability according to claim 6, characterized in that, Reinforcing ribs (32) are fixedly connected to the top wall of the U-shaped cover plate (3).

8. The aluminum alloy cable tray with good stability according to claim 1, wherein The U-shaped bracket (1), the expansion joint (2) and the U-shaped cover plate (3) are all made of aluminum alloy material.

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