Ring main unit convenient for wire arrangement
By installing cable sleeves and fixing sleeves on the cable trays of the ring main unit, the problem of unstable cable connections is solved, enabling convenient cable routing and stable connection, and avoiding damage to the connection points.
Patent Information
- Application Number
- CN202422668173.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-01
AI Technical Summary
The existing solid insulated ring main unit cannot be fixed during the cable connection process, which can easily cause the cables to be pulled, resulting in damage or detachment of the connection.
Cable sleeves and fixing sleeves are installed on the cable trays of the ring main unit. Through the design of threaded connection and rubber pad, the cables are fixed and isolated. The deformation of the fixing sleeve is used to lock the cable and prevent damage to the connection when pulled.
It enables convenient cable routing and fixing, prevents cable connections from coming loose when pulled, and ensures stable cable connections.
Smart Images

Figure CN223487606U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ring main unit technology, and in particular to a ring main unit that is easy to route cables. Background Technology
[0002] Ring main units can be divided into gas-insulated ring main units and solid-insulated ring main units according to the different insulation media. Existing solid-insulated ring main units are generally composed of a switch compartment, a fuse compartment, an operating mechanism compartment, and a cable compartment. The bottom of the cabinet is provided with an inlet hole for connecting to the cable compartment. The cable compartment is provided with three-phase cable outlets and three current transformers. The three current transformers are made into an integrated structure and are fixed in the cable compartment with screws. When connecting external cables, the cables pass through the inlet hole into the cable compartment and then through the current transformers to connect to the cable outlets. However, the cables cannot be fixed during the connection process, which can easily lead to the cables being pulled, causing damage or detachment at the connection points. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a ring main unit that facilitates cable routing, which can conveniently route and fix cables, and prevent the connection from falling off when the cables are pulled.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0005] A ring main unit that facilitates cable routing includes a cabinet body, the bottom of the inner cavity of the cabinet body is a cable compartment, the top of the cable compartment is provided with a cable inlet, a cable routing base is installed between the opposite side walls of the cable compartment, and a number of cable fixing components are installed on the side of the cable routing base near the cabinet door.
[0006] The cable fixing component includes a mounting base installed on a cable tray, a fixing block installed on the top of the mounting base, and a cable sleeve installed on the bottom of the fixing block. The upper end of the cable sleeve has a cylindrical cross-sectional shape, and the lower end of the cable sleeve has a frustum-shaped cross-sectional shape. There is a gap between the cable sleeve and the fixing block. The fixing block has a through hole that communicates with the cable sleeve. The lower end of the cable sleeve has a hollowed-out groove at an equal angle on its side. A fixing sleeve is threaded to the outer wall of the cable sleeve, and the shape of the fixing sleeve is adapted to the cable sleeve.
[0007] Furthermore, a rubber pad is provided on the inner wall of the lower end of the cable sleeve, and the rubber pad is disposed between two adjacent hollow grooves.
[0008] Furthermore, the inner diameter of the lower end of the fixed sleeve is smaller than the outer diameter of the lower end of the cable sleeve.
[0009] Furthermore, the upper end of the cable sleeve has a threaded groove on its outer wall.
[0010] Furthermore, the cable tray is symmetrically fixed with positioning blocks at both ends, and the positioning blocks are located on the side of the mounting base away from the cabinet door, and the mounting blocks are provided with through mounting holes.
[0011] Furthermore, the mounting base and the cable tray are slidably connected.
[0012] Furthermore, the mounting base includes a mounting block, and a fixing block is mounted on the top of the mounting block. The top and bottom of the mounting block are symmetrically slidably connected with limit rods. The free end of the limit rod is fixed with an abutment block, and the abutment blocks on both sides abut against the top and bottom of the cable tray, respectively. A spring is sleeved on the outer wall of the limit rod, and the two ends of the spring are connected to the abutment block and the mounting block, respectively.
[0013] Furthermore, the mounting block has a hollow internal structure, and one end of the limiting rod is inserted into the inner cavity of the mounting block and a limiting block is installed thereon.
[0014] Furthermore, the abutment block has several limiting teeth on one side near the cable holder, and the top and bottom of the cable holder are provided with limiting grooves that cooperate with the limiting teeth along the length direction.
[0015] Furthermore, the mounting block has two limiting rods at both the top and bottom.
[0016] The beneficial effects of the present invention are:
[0017] This invention features a cable tray with a cable fixing component consisting of a cable sleeve, a fixing block, and a fixing sleeve. After connection, the cable can be inserted into the corresponding cable sleeve, thus isolating and organizing the cables for a neater arrangement. Furthermore, after cable isolation, the fixing sleeve can be rotated to abut against the lower end of the cable sleeve, causing deformation and locking of the cable. This prevents damage to the cable connection when the cable is pulled. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the ring main unit of this utility model;
[0019] Figure 2 This is a structural schematic diagram of the cable fixing component in the ring main unit of this utility model;
[0020] Figure 3 This is an exploded structural diagram of the cable sleeve and fixing sleeve in the ring main unit of this utility model;
[0021] Figure 4 This is a schematic diagram of the mounting base in the ring main unit of this utility model;
[0022] Label Explanation:
[0023] 1. Cabinet; 101. Cable compartment; 102. Cable inlet; 2. Cable tray; 21. Limiting groove; 3. Cable fastener; 31. Mounting base; 311. Mounting block; 312. Limiting rod; 313. Abutment block; 314. Spring; 315. Limiting block; 316. Limiting tooth; 32. Fixing block; 33. Cable sleeve; 34. Through hole; 35. Hollowed-out groove; 36. Fixing sleeve; 37. Threaded groove; 4. Positioning block. Detailed Implementation
[0024] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.
[0025] Please refer to Figure 1-4 The technical solution adopted by this utility model is as follows:
[0026] A ring main unit that facilitates cable routing includes a cabinet body, the bottom of the inner cavity of the cabinet body is a cable compartment, the top of the cable compartment is provided with a cable inlet, a cable routing base is installed between the opposite side walls of the cable compartment, and a number of cable fixing components are installed on the side of the cable routing base near the cabinet door.
[0027] The cable fixing component includes a mounting base installed on a cable tray, a fixing block installed on the top of the mounting base, and a cable sleeve installed on the bottom of the fixing block. The upper end of the cable sleeve has a cylindrical cross-sectional shape, and the lower end of the cable sleeve has a frustum-shaped cross-sectional shape. There is a gap between the cable sleeve and the fixing block. The fixing block has a through hole that communicates with the cable sleeve. The lower end of the cable sleeve has a hollowed-out groove at an equal angle on its side. A fixing sleeve is threaded to the outer wall of the cable sleeve, and the shape of the fixing sleeve is adapted to the cable sleeve.
[0028] As can be seen from the above description, the beneficial effects of this utility model are as follows:
[0029] This invention features a cable tray with a cable fixing component consisting of a cable sleeve, a fixing block, and a fixing sleeve. After connection, the cable can be inserted into the corresponding cable sleeve, thus isolating and organizing the cables for a neater arrangement. Furthermore, after cable isolation, the fixing sleeve can be rotated to abut against the lower end of the cable sleeve, causing deformation and locking of the cable. This prevents damage to the cable connection when the cable is pulled.
[0030] Furthermore, a rubber pad is provided on the inner wall of the lower end of the cable sleeve, and the rubber pad is disposed between two adjacent hollow grooves.
[0031] As can be seen from the above description, the rubber pad allows for soft contact between the lower end of the cable sleeve and the cable, thus preventing damage to the cable sheath.
[0032] Furthermore, the inner diameter of the lower end of the fixed sleeve is smaller than the outer diameter of the lower end of the cable sleeve.
[0033] As can be seen from the above description, when the fixed sleeve rotates and slides upward along the cable sleeve, the lower end of the fixed sleeve can abut against the lower end of the cable sleeve, causing the lower end of the cable sleeve to deform and compress the fixed cable.
[0034] Furthermore, the cable tray is symmetrically fixed with positioning blocks at both ends, and the positioning blocks are located on the side of the mounting base away from the cabinet door, and the mounting blocks are provided with through mounting holes.
[0035] As can be seen from the above description, the cable connector can be installed and fixed by setting the positioning block.
[0036] Furthermore, the mounting base and the cable tray are slidably connected.
[0037] As can be seen from the above description, the position of the mounting base can be adjusted so that the cable can be fixed in the middle of the ring main unit during cable laying and then slid to one side, thus facilitating cable laying.
[0038] Furthermore, the mounting base includes a mounting block, and a fixing block is mounted on the top of the mounting block. The top and bottom of the mounting block are symmetrically slidably connected with limit rods. The free end of the limit rod is fixed with an abutment block, and the abutment blocks on both sides abut against the top and bottom of the cable tray, respectively. A spring is sleeved on the outer wall of the limit rod, and the two ends of the spring are connected to the abutment block and the mounting block, respectively.
[0039] As can be seen from the above description, when installing the mounting base, the two abutment blocks on both sides can be pulled to disengage them from the cable tray, and then the position of the mounting base can be slid and adjusted. This structure also facilitates the installation and removal of the mounting base.
[0040] Furthermore, the mounting block has a hollow internal structure, and one end of the limiting rod is inserted into the inner cavity of the mounting block and a limiting block is installed thereon.
[0041] As can be seen from the above description, the position of the limiting rod can be limited by the limiting block to prevent it from detaching.
[0042] Furthermore, the abutment block has several limiting teeth on one side near the cable holder, and the top and bottom of the cable holder are provided with limiting grooves that cooperate with the limiting teeth along the length direction.
[0043] As can be seen from the above description, the mutual cooperation of the limiting teeth and the limiting groove can ensure the fixed position of the mounting base and prevent slippage after the cable is installed.
[0044] Furthermore, the mounting block has two limiting rods at both the top and bottom.
[0045] Please refer to Figures 1 to 4 As shown, Embodiment 1 of this utility model is as follows:
[0046] Please refer to Figure 1 and Figure 2 A ring main unit for easy cable routing includes a cabinet body 1, the bottom of the inner cavity of the cabinet body 1 is a cable chamber 101, and the top of the cable chamber 101 is provided with a cable inlet 102. The characteristic is that a cable routing seat 2 is installed between the opposite side walls of the cable chamber 101, and a plurality of cable fixing parts 3 are installed on the side of the cable routing seat 2 near the cabinet door of the cabinet body 1.
[0047] The cable fixing component 3 includes a mounting base 31 installed on the cable tray 2. A fixing block 32 is installed on the top of the mounting base 31, and a cable sleeve 33 is installed on the bottom of the fixing block 32. The upper end of the cable sleeve 33 has a cylindrical cross-sectional shape, and the lower end of the cable sleeve 33 has a frustum-shaped cross-sectional shape. There is a gap between the cable sleeve 33 and the fixing block 32. The fixing block 32 has a through hole 34 that communicates with the cable sleeve 33. The lower end of the cable sleeve 33 has a hollowed-out groove 35 at equal angles on its side. A fixing sleeve 36 is threaded to the outer wall of the cable sleeve 33, and the shape of the fixing sleeve 36 is adapted to the cable sleeve 33.
[0048] A rubber pad is provided on the inner wall of the lower end of the cable sleeve 33, and the rubber pad is located between two adjacent hollow grooves 35.
[0049] Please refer to Figure 3 The inner diameter of the lower end of the fixed sleeve 36 is smaller than the outer diameter of the lower end of the cable sleeve 33.
[0050] Please refer to Figure 3 The upper end of the cable sleeve 33 has a threaded groove 37 on its outer wall.
[0051] Please refer to Figure 2 The cable tray 2 is symmetrically fixed with positioning blocks 4 at both ends, and the positioning blocks 4 are located on the side of the mounting base 31 away from the cabinet door of the cabinet body 1. The mounting block 311 has a through mounting hole.
[0052] Please refer to Figure 2 The mounting base 31 is slidably connected to the cable tray 2.
[0053] Please refer to Figure 2 and Figure 4 The mounting base 31 includes a mounting block 311, and a fixing block 32 is mounted on the top of the mounting block 311. The top and bottom of the mounting block 311 are symmetrically slidably connected with limit rods 312. The free end of the limit rod 312 is fixedly connected with an abutment block 313, and the abutment blocks 313 on both sides abut against the top and bottom of the cable tray 2, respectively. The outer wall of the limit rod 312 is fitted with a spring 314, and the two ends of the spring 314 are connected to the abutment block 313 and the mounting block 311, respectively.
[0054] Please refer to Figure 4 The mounting block 311 has a hollow structure inside, and one end of the limiting rod 312 is inserted into the inner cavity of the mounting block 311 and a limiting block 315 is installed.
[0055] Please refer to Figure 2 and Figure 4 The abutment block 313 has a plurality of limiting teeth 316 on one side near the cable holder 2, and the top and bottom of the cable holder 2 are provided with limiting grooves 21 that cooperate with the limiting teeth 316 along the length direction.
[0056] Please refer to Figure 2 The mounting block 311 has two limiting rods 312 at the top and bottom.
[0057] In this embodiment, the cable sleeve 33 is made of aluminum.
[0058] The wiring process for the aforementioned ring main unit is as follows:
[0059] During cable laying, the cable laying seat 2 is installed and fixed in the cable chamber 101 by the positioning blocks 4 on both sides. Then, the cable is passed through the cable inlet 102 and then through the cable sleeve 33. Then, the fixing sleeve 36 is rotated so that the fixing sleeve 36 slides upward along the cable sleeve 33, so that the lower end of the fixing sleeve 36 abuts against the lower end of the cable sleeve 33, causing the lower end of the cable sleeve 33 to deform and lock the cable, thus completing the cable fixing. Finally, the abutment blocks 313 on both sides are pulled, and the limiting teeth 316 of the abutment blocks 313 disengage from the limiting groove 21. Then, the mounting seat 31 slides to one side of the cable laying seat 2. After sliding into place, the abutment blocks 313 are released, thus completing the fixing of the mounting seat 31.
[0060] In summary, the ring main unit provided by this utility model facilitates cable routing. By setting a cable routing base, and installing cable fixing components consisting of cable sleeves, fixing blocks, and fixing sleeves on the cable routing base, the cables can be inserted into the corresponding cable sleeves after connection, thereby isolating and organizing the cables, making the cable arrangement neater. Furthermore, after cable isolation, the lower end of the fixing sleeve can be rotated to abut against the lower end of the cable sleeve, causing the lower end of the cable sleeve to deform and lock the cable in place, ensuring that pulling the cable will not affect the cable connection.
[0061] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A ring main unit for easy cable routing, comprising a cabinet body, wherein the bottom of the cabinet body is a cable compartment, and the top of the cable compartment is provided with a cable inlet, characterized in that, A cable tray is installed between the opposite two side walls of the cable compartment, and several cable fasteners are installed on the side of the cable tray near the cabinet door. The cable fixing component includes a mounting base installed on a cable tray, a fixing block installed on the top of the mounting base, and a cable sleeve installed on the bottom of the fixing block. The upper end of the cable sleeve has a cylindrical cross-sectional shape, and the lower end of the cable sleeve has a frustum-shaped cross-sectional shape. There is a gap between the cable sleeve and the fixing block. The fixing block has a through hole that communicates with the cable sleeve. The lower end of the cable sleeve has a hollowed-out groove at an equal angle on its side. A fixing sleeve is threaded to the outer wall of the cable sleeve, and the shape of the fixing sleeve is adapted to the cable sleeve.
2. The ring main unit for easy cabling as described in claim 1, characterized in that, The lower end of the cable sleeve is provided with a rubber pad on its inner wall, and the rubber pad is positioned between two adjacent hollowed-out grooves.
3. The ring main unit for easy cabling as described in claim 1, characterized in that, The inner diameter of the lower end of the fixed sleeve is smaller than the outer diameter of the lower end of the cable sleeve.
4. The ring main unit for easy cabling according to claim 1, characterized in that, The upper end of the cable sleeve has a threaded groove on its outer wall.
5. The ring main unit for easy cabling as described in claim 1, characterized in that, The cable tray is symmetrically fixed with positioning blocks at both ends, and the positioning blocks are located on the side of the mounting base away from the cabinet door. The mounting blocks are provided with through mounting holes.
6. The ring main unit for easy cabling according to claim 1, characterized in that, The mounting base and the cable connector are slidably connected.
7. The ring main unit for easy cabling according to claim 6, characterized in that, The mounting base includes a mounting block, and a fixing block is mounted on the top of the mounting block. Limiting rods are symmetrically slidably connected to the top and bottom of the mounting block. An abutment block is fixed to the free end of the limiting rod, and the abutment blocks on both sides abut against the top and bottom of the cable tray, respectively. A spring is sleeved on the outer wall of the limiting rod, and the two ends of the spring are connected to the abutment block and the mounting block, respectively.
8. The ring main unit for easy cabling according to claim 7, characterized in that, The mounting block has a hollow structure inside, and one end of the limiting rod is inserted into the inner cavity of the mounting block and a limiting block is installed.
9. The ring main unit for easy cabling according to claim 7, characterized in that, The abutment block has several limiting teeth on one side near the cable tray, and the top and bottom of the cable tray are provided with limiting grooves that cooperate with the limiting teeth along the length direction.
10. The ring main unit for easy cabling according to claim 7, characterized in that, The mounting block has two limiting rods at the top and bottom.