Connecting device for cable bridge

Abstract

The utility model discloses a connecting device for a cable bridge, which relates to the technical field of cable mounting structures and comprises a first bridge, a second bridge and a butt joint plate, first connecting plates are mounted on two side surfaces, facing the second bridge, of the first bridge, and second connecting plates are mounted on two side surfaces, facing the first bridge, of the second bridge. A plurality of fixing bolts are installed in the first connecting plate, a plurality of fixing nuts are installed in the second connecting plate, the fixing bolts and the fixing nuts are vertically arranged at intervals, butt joint plates are installed on the opposite faces of the first bridge frame and the second bridge frame, the butt joint plates are of frame plate structures, and the opposite ends of the butt joint plates are made of rubber materials. According to the utility model, the fixing bolts and the fixing nuts are connected in a screwing-in manner, so that the first bridge frame and the second bridge frame are connected, the butt joint plate is in an extruded state after connection, and the sealing performance between the first bridge frame and the second bridge frame is improved.

Description

Technical Field

[0001] This utility model relates to the field of cable installation structure technology, specifically a connection device for cable trays. Background Technology

[0002] Cable trays are structures used to support and protect cables. They are typically made of metal or plastic and are designed as a series of horizontal and vertical beams forming a grid-like support to secure cables and keep them off the ground. This helps prevent damage or interference to the cables and also facilitates the maintenance and management of the entire electrical system. There are various types of cable trays, including trough type, tray type, ladder type, and mesh type. Cable trays play a vital role in modern buildings and are widely used in office buildings, factories, hospitals, and schools. They not only provide a stable support platform, protecting cables from mechanical damage, moisture, or chemical corrosion, but also effectively manage cable routing, making it neatly arranged and easy to identify.

[0003] Currently, when installing cable trays, a simple connection is made between the two trays using ceiling-mounted rods at the top, leaving a gap between them. While this can improve the stability between the two trays, the bolt installation position is not conducive to the connection setup of the two trays.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] The purpose of this invention is to provide a connection device for cable trays to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a connection device for cable trays, including a first cable tray, a second cable tray, and a connecting plate.

[0007] The first cable tray has a first connecting plate installed on both sides facing the second cable tray, and the second cable tray has a second connecting plate installed on both sides facing the first cable tray. The first connecting plate has a fixing bolt installed inside, and the second connecting plate has a fixing nut installed inside. Multiple fixing bolts and fixing nuts are arranged vertically at intervals. The first cable tray and the second cable tray have a mating plate installed on their opposite sides. The mating plate has a frame plate structure, and the opposite ends of the mating plate are made of rubber.

[0008] In one embodiment, an installation port is provided at the center of the opposite face of the first connecting plate and the second connecting plate. The installation port after the first connecting plate and the second connecting plate are connected is in a rectangular structure. The installation port is located outside the fixing bolt and fixing nut, and a protective component is installed inside the installation port.

[0009] In one embodiment, the protective component consists of a support plate and a protective plate. The protective plate is installed on the right side of the support plate. The protective plate has an overall hook plate structure with an open top on its right side. The inner diameter of the protective plate is matched with the diameter of the fixing bolt.

[0010] In one embodiment, the top of the support plate is connected to the mounting plate via a hanging rod, and the mounting plate is fixed to the wall by expansion bolts.

[0011] In one embodiment, a sealing opening is provided in the center of the bottom surface of the mating plate, and a sealing element is installed in the sealing opening. The two sealing openings together form a rectangular opening structure after being connected.

[0012] In one embodiment, the seal consists of a protective pad, a plug, and a sealing strip. The plug is located inside the sealing opening. A protective pad is installed on the top of the plug. The protective pad is located on the inner bottom surface of the connection between the first cable tray and the second cable tray. A sealing strip is installed on the bottom of the plug. The sealing strip is attached to the bottom surface of the connection between the first cable tray and the second cable tray with adhesive backing, covering the entire gap.

[0013] In one embodiment, both the first and second cable trays are equipped with limiting components. The limiting components have internally spaced limiting grooves, and multiple limiting grooves are spaced apart. The inner bottom surface of each limiting groove is an arc surface structure.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By screwing in the fixing bolts and fixing nuts, the first cable tray and the second cable tray are connected. The mating plates after connection are in a compressed state, which improves the sealing between the first cable tray and the second cable tray.

[0016] 2. By placing the support plate and protective plate under the fixing bolts before installing the fixing bolts and nuts, and then lifting the support plate after installation, the protective plate provides lifting protection for the fixing bolts, preventing them from loosening or deforming after long-term use and providing a supporting effect. The hanging rods and mounting plates help to provide auxiliary pulling force for the connection between the first and second cable trays, further improving the stability of the connection.

[0017] 3. The protective pads prevent the internal cables from being scratched at the connection between the first and second cable trays, and also further enhance the sealing performance of the protective pads and sealing strips on the inside and outside of the first and second cable trays. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a connection device for cable trays;

[0019] Figure 2 This is a schematic diagram showing the components of a connection device for cable trays after disassembly.

[0020] Figure 3 Detailed drawing of protective and sealing components for a connection device used in cable trays;

[0021] Figure 4 This is a detailed drawing of a limiting component for a connection device used in cable trays.

[0022] In the diagram: 1. First cable tray; 11. First connecting plate; 12. Fixing bolt; 2. Second cable tray; 21. Second connecting plate; 22. Fixing nut; 3. Butt plate; 4. Protective component; 41. Support plate; 42. Protective plate; 43. Hanging rod; 44. Mounting plate; 5. Mounting port; 6. Sealing port; 7. Sealing component; 71. Protective pad; 72. Insert block; 73. Sealing strip. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-3 This utility model provides a technical solution including a first cable tray 1, a second cable tray 2, and a connecting plate 3.

[0025] like Figures 1-2 As shown, the first cable tray 1 has a first connecting plate 11 installed on both sides facing the second cable tray 2, and the second cable tray 2 has a second connecting plate 21 installed on both sides facing the first cable tray 1. The first connecting plate 11 has a fixing bolt 12 installed inside, and the second connecting plate 21 has a fixing nut 22 installed inside. Multiple fixing bolts 12 and fixing nuts 22 are arranged vertically at intervals. The first cable tray 1 and the second cable tray 2 have a mating plate 3 installed on their opposite sides. The mating plate 3 has a frame plate structure, and the opposite ends of the mating plate 3 are made of rubber. During operation, the first cable tray 1 and the second cable tray 2 are connected by screwing the fixing bolts 12 and the fixing nuts 22 into place. After connection, the mating plate 3 is in a compressed state, which improves the sealing between the first cable tray 1 and the second cable tray 2.

[0026] Preferably, in one embodiment, such as Figures 2-3As shown, the first connecting plate 11 and the second connecting plate 21 each have an installation port 5 in the middle of their opposite surfaces. The installation port 5 after the first connecting plate 11 and the second connecting plate 21 are connected is in a rectangular structure. The installation port 5 is located outside the fixing bolt 12 and the fixing nut 22. A protective component 4 is installed inside the installation port 5.

[0027] Preferably, in one embodiment, such as Figure 3 As shown, the protective component 4 consists of a support plate 41 and a protective plate 42. The protective plate 42 is installed on the right side of the support plate 41. The protective plate 42 has a hook-plate structure with an open top on its right side. The inner diameter of the protective plate 42 is matched with the diameter of the fixing bolt 12. During operation, before installing the fixing bolt 12 and the fixing nut 22, the support plate 41 and the protective plate 42 are placed under the fixing bolt 12. After installation, the support plate 41 is lifted so that the protective plate 42 provides lifting protection for the fixing bolt 12, preventing the fixing bolt 12 from loosening and deforming after long-term use, and playing a supporting role.

[0028] Preferably, in one embodiment, such as Figure 3 As shown, the top of the support plate 41 is connected to the mounting plate 44 via a hanging rod 43. The mounting plate 44 is fixed to the wall with expansion nails. The hanging rod 43 and the mounting plate 44 help to provide auxiliary pulling force for the connection of the first cable tray 1 and the second cable tray 2, further improving the stability of the connection.

[0029] Preferably, in one embodiment, such as Figures 2-3 As shown, a sealing port 6 is provided in the middle of the bottom surface of the docking plate 3, and a sealing element 7 is installed in the sealing port 6. The two sealing ports 6 together form a rectangular structure after being connected.

[0030] Preferably, in one embodiment, such as Figure 3 As shown, the sealing element 7 consists of a protective pad 71, a plug 72, and a sealing strip 73. The plug 72 is located inside the sealing opening 6. The protective pad 71 is installed on the top of the plug 72. The protective pad 71 is located on the inner bottom surface of the connection between the first cable tray 1 and the second cable tray 2. The sealing strip 73 is installed on the bottom of the connection between the first cable tray 1 and the second cable tray 2 by means of adhesive backing, covering the entire gap and improving the sealing performance. During operation, the protective pad 71 prevents the connection between the first cable tray 1 and the second cable tray 2 from scratching the internal cables. At the same time, the protective pad 71 and the sealing strip 73 further improve the sealing performance of the inside and outside of the first cable tray 1 and the second cable tray 2.

[0031] Preferably, in one embodiment, such as Figure 1 , Figure 4As shown, both the first cable tray 1 and the second cable tray 2 are equipped with limiting components 8. The limiting components 8 have limiting grooves 81 spaced apart inside. Multiple limiting grooves 81 are spaced apart. The inner bottom surface of the limiting grooves 81 is an arc surface structure. By setting the limiting components 8 and limiting grooves 81, friction damage between cables is avoided, multiple cables are separated, and the convenience of cable storage is improved.

[0032] Working principle:

[0033] By screwing the fixing bolt 12 and fixing nut 22 into place, the first cable tray 1 and the second cable tray 2 are connected. After connection, the mating plate 3 is in a compressed state, which improves the sealing between the first cable tray 1 and the second cable tray 2. Before installing the fixing bolt 12 and fixing nut 22, the support plate 41 and the protective plate 42 are placed under the fixing bolt 12. After installation, the support plate 41 is lifted so that the protective plate 42 provides lifting protection for the fixing bolt 12, preventing the fixing bolt 12 from loosening and deforming after long-term use, and playing a supporting role.

Claims

1. A connection device for cable trays, comprising a first cable tray (1), a second cable tray (2), and a connecting plate (3), characterized in that: The first cable tray (1) has a first connecting plate (11) installed on both sides facing the second cable tray (2), and the second cable tray (2) has a second connecting plate (21) installed on both sides facing the first cable tray (1). The first connecting plate (11) has a fixing bolt (12) installed inside, and the second connecting plate (21) has a fixing nut (22) installed inside. The fixing bolt (12) and fixing nut (22) are arranged vertically at intervals. The first cable tray (1) and the second cable tray (2) have a connecting plate (3) installed on opposite sides. The connecting plate (3) has a frame plate structure, and the opposite ends of the connecting plate (3) are made of rubber.

2. The connection device for cable trays as described in claim 1, characterized in that: The first connecting plate (11) and the second connecting plate (21) each have an installation port (5) in the middle of their opposite sides. The installation port (5) after the first connecting plate (11) and the second connecting plate (21) are connected is in a rectangular structure. The installation port (5) is located outside the fixing bolt (12) and the fixing nut (22). A protective component (4) is installed inside the installation port (5).

3. A connection device for cable trays as described in claim 2, characterized in that: The protective component (4) consists of a support plate (41) and a protective plate (42). The protective plate (42) is installed on the right side of the support plate (41). The protective plate (42) has a hook plate structure as a whole, and its right top is an open end. The inner diameter of the protective plate (42) is matched with the diameter of the fixing bolt (12).

4. A connection device for cable trays as described in claim 3, characterized in that: The top of the support plate (41) is connected to the mounting plate (44) by a hanging rod (43), and the mounting plate (44) is fixed to the wall by expansion nails.

5. A connection device for cable trays as described in claim 1, characterized in that: A sealing port (6) is provided in the middle of the bottom surface of the docking plate (3). A sealing element (7) is installed in the sealing port (6). The two sealing ports (6) together form a rectangular structure after being connected.

6. A connection device for cable trays as described in claim 5, characterized in that: The sealing element (7) consists of a protective pad (71), a plug (72), and a sealing strip (73). The plug (72) is located inside the sealing opening (6). The top of the plug (72) is fitted with a protective pad (71). The protective pad (71) is located on the inner bottom surface of the connection between the first cable tray (1) and the second cable tray (2). The bottom of the plug (72) is fitted with a sealing strip (73). The sealing strip (73) is attached to the bottom surface of the connection between the first cable tray (1) and the second cable tray (2) by adhesive backing, covering the entire gap.

7. A connection device for cable trays as described in claim 1, characterized in that: Both the first cable tray (1) and the second cable tray (2) are equipped with limiting components. The limiting components have limiting grooves spaced apart inside. Multiple limiting grooves are spaced apart. The inner bottom surface of the limiting groove is an arc surface structure.

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