Ring main unit incoming line cable protection structure

Abstract

The utility model belongs to the technical field of ring main unit, provide a kind of ring main unit incoming line cable protection structure, including protection pipe, the one end of protection pipe is integrally formed with limit sleeve, the outside of protection pipe is sleeved with sealing rubber sleeve, the inside of sealing rubber sleeve is integrally formed with shrink sleeve, the other end of protection pipe is connected with fixed pipe, the inside of protection pipe is equipped with protection threading pipe, the both ends of protection threading pipe are integrally formed with protection rubber sleeve, the outside of protection threading pipe is equipped with sealing washer, the inside of protection threading pipe is integrally formed with sealing inner cover, the protection threading pipe, protection rubber sleeve and sealing inner cover being set, avoid the friction between cable and protection structure after bending, thus improve the protection effect and sealing effect of ring main unit incoming line cable protection structure.

Description

Technical Field

[0001] This utility model relates to the field of ring main unit technology, specifically to a protective structure for the incoming cable of a ring main unit. Background Technology

[0002] The ring main unit incoming cable protection structure is a device used to protect the incoming cable of the ring main unit. It can prevent cable wear, seal against moisture, and prevent foreign objects from entering.

[0003] Existing technology publication CN222673621U discloses a protective structure for the incoming cable of a ring main unit, including a ring main unit body, an incoming through hole, and a mounting groove. Both the incoming through hole and the mounting groove are located on the side of the ring main unit body. An annular plate is placed on the inner wall of the mounting groove, and a through-hole protective tube is fixedly connected to the inner wall of the annular plate. A compression guide roller mechanism is connected to the inner wall of the through-hole protective tube. The compression guide roller mechanism includes a fixing plate fixedly connected to the inner wall of the through-hole protective tube. A strip-shaped through groove is formed on the surface of the fixing plate, and a first fixing rod is fixedly connected between the two end walls of the strip-shaped through groove. This invention, by setting up the compression guide roller mechanism, prevents the incoming cable from contacting the inner wall or end wall of the through-hole protective tube after passing through it. This significantly reduces friction, thereby avoiding damage to the incoming cable caused by friction and achieving a better protective effect.

[0004] However, the existing protective structure for incoming cables of ring main units, although it can provide protection through the protective pipe, has poor protection effect because the cable pipe itself is a flexible structure and the cable bends and friction occurs when the cable passes through the protective pipe. In addition, there are gaps between the cable and the protective pipe when the cable passes through, resulting in poor sealing effect. Therefore, we propose a protective structure for incoming cables of ring main units. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a protective structure for the incoming cable of a ring main unit, thereby solving the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a protective structure for the incoming cable of a ring main unit, comprising a protective tube, one end of which is integrally formed with a limiting sleeve, a sealing sleeve fitted on the outer side of the protective tube, a shrink sleeve integrally formed on the inner side of the sealing sleeve, a fixing tube threaded to the other end of the protective tube, a protective cable conduit installed inside the protective tube, both ends of the protective cable conduit integrally formed with protective sleeves, a sealing gasket installed on the outer side of the protective cable conduit, and a sealing inner sleeve integrally formed inside the protective cable conduit.

[0009] Preferably, one end of the sealing sleeve has an opening, and the sealing sleeve is connected to the protective tube through the opening.

[0010] Preferably, one end of the protective tube has an opening, and the protective tube is connected to the protective conduit sleeve through the opening.

[0011] Preferably, one end of the fixing tube is provided with a threaded opening, which is connected to the threaded connection of the protective tube.

[0012] Preferably, the sealing inner sleeve gradually decreases in size from left to right, and the sealing inner sleeve is made of rubber material.

[0013] Preferably, there are two protective sleeves, both of which are the same size and shape and are arranged symmetrically.

[0014] (III) Beneficial Effects

[0015] This utility model provides a protective structure for the incoming cable of a ring main unit, which has the following beneficial effects:

[0016] (1) This type of ring main unit incoming cable protection structure, through the setting of protective conduit, protective rubber sleeve and sealing inner sleeve, when using the ring main unit incoming cable protection structure, the operator passes the protective conduit through the limit sleeve and the opening of the protective tube, then places the sealing rubber sleeve on the outside of the protective tube, and then passes the protective tube through the incoming cable port of the ring main unit, and connects the screw of the fixing tube to the protective tube with the thread. At this time, the fixing tube and the protective tube are combined and squeezed to fix and seal the sealing rubber sleeve. At the same time, the fixing tube and the protective tube clamp the sealing gasket. Then the cable passes through the protective rubber sleeve, the protective conduit and the sealing inner sleeve. When the cable passes through the sealing inner sleeve, the sealing inner sleeve can use its own contraction to firmly stick to the cable, thereby playing a sealing role. At the same time, the protective rubber sleeve plays a protective role on the outside of the cable, avoiding friction between the cable and the protective structure after bending. Therefore, the protection effect and sealing effect of the ring main unit incoming cable protection structure are improved. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a partial structural diagram of the protective tube of this utility model;

[0019] Figure 3 This is a partial structural schematic diagram of the protective conduit of this utility model;

[0020] Figure 4 This is a cross-sectional view of the protective tube of this utility model.

[0021] In the diagram: 1. Limiting sleeve; 2. Protective tube; 201. Tube opening; 3. Sealing sleeve; 301. Shrink sleeve; 302. Sleeve opening; 4. Fixing tube; 401. Threaded opening; 5. Protective conduit; 6. Sealing gasket; 7. Protective sleeve; 8. Sealing inner sleeve. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a protective structure for the incoming cable of a ring main unit, including a protective tube 2, one end of which is integrally formed with a limiting sleeve 1, a sealing sleeve 3 is sleeved on the outside of the protective tube 2, a shrink sleeve 301 is integrally formed on the inside of the sealing sleeve 3, a fixing tube 4 is threaded to the other end of the protective tube 2, a protective cable conduit 5 is installed inside the protective tube 2, both ends of the protective cable conduit 5 are integrally formed with protective sleeves 7, a sealing gasket 6 is installed on the outside of the protective cable conduit 5, and a sealing inner sleeve 8 is integrally formed inside the protective cable conduit 5.

[0024] Furthermore, one end of the sealing sleeve 3 is provided with a sleeve opening 302, through which the sealing sleeve 3 is connected to the protective tube 2. The sleeve opening 302 facilitates the assembly of the sealing sleeve 3 and the protective tube 2.

[0025] Furthermore, one end of the protective pipe 2 is provided with a pipe opening 201. The protective pipe 2 is connected to the protective conduit 5 through the pipe opening 201, which facilitates the installation of the protective conduit 5 by the staff.

[0026] Furthermore, one end of the fixing tube 4 is provided with a screw hole 401, which is threadedly connected to the protective tube 2, making it convenient for workers to assemble the fixing tube 4 and the protective tube 2.

[0027] Furthermore, the sealing inner sleeve 8 gradually decreases in size from left to right. The sealing inner sleeve 8 is made of rubber material. When the cable passes through the sealing inner sleeve 8, the sealing inner sleeve 8 can use its own contractility to firmly adhere to the cable, thereby playing a sealing role.

[0028] Furthermore, there are two protective sleeves 7, which are the same size and shape and are symmetrically arranged. The protective sleeves 7 can play a protective role, so that the cable will not rub against the protective structure during bending.

[0029] Working Principle: After installation, first check the installation, fixation, and safety protection of this utility model. When using the ring main unit's incoming cable protection structure, the worker passes the protective conduit 5 through the limit sleeve 1 and the pipe opening 201 of the protective tube 2. Then, the sealing sleeve 3 is placed on the outside of the protective tube 2. Next, the protective tube 2 is passed through the incoming cable port of the ring main unit, and the screw end 401 of the fixing tube 4 is threadedly connected to the protective tube 2. At this time, the fixing tube 4 and the protective tube 2 are combined and the sealing sleeve 3 is squeezed to fix and seal them. At the same time, the fixing tube 4 and the protective tube 2 clamp the sealing gasket 6. Then, the cable is passed through the protective sleeve 7, the protective conduit 5, and the sealing inner sleeve 8. When the cable passes through the sealing inner sleeve 8, the sealing inner sleeve 8 can firmly adhere to the cable by its own contraction, thereby playing a sealing role. At the same time, the protective sleeve 7 protects the outside of the cable, preventing friction between the cable and the protective structure after bending. This completes the use of this utility model. This utility model has a simple structure and is safe and convenient to use.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective structure for incoming cables of a ring main unit, comprising a protective pipe (2), characterized in that: One end of the protective tube (2) is integrally formed with a limiting sleeve (1), a sealing sleeve (3) is sleeved on the outside of the protective tube (2), a shrink sleeve (301) is integrally formed on the inside of the sealing sleeve (3), a fixing tube (4) is threaded to the other end of the protective tube (2), a protective threading tube (5) is installed inside the protective tube (2), a protective sleeve (7) is integrally formed on both ends of the protective threading tube (5), a sealing gasket (6) is installed on the outside of the protective threading tube (5), and a sealing inner sleeve (8) is integrally formed inside the protective threading tube (5).

2. The ring main unit incoming cable protection structure according to claim 1, characterized in that: The sealing sleeve (3) has a sleeve opening (302) at one end, and the sealing sleeve (3) is connected to the protective tube (2) through the sleeve opening (302).

3. The ring main unit incoming cable protection structure according to claim 1, characterized in that: One end of the protective tube (2) is provided with a tube opening (201), and the protective tube (2) is connected to the protective conduit (5) through the tube opening (201).

4. The ring main unit incoming cable protection structure according to claim 1, characterized in that: One end of the fixed tube (4) is provided with a screw hole (401), and the screw hole (401) is threadedly connected to the protective tube (2).

5. The ring main unit incoming cable protection structure according to claim 1, characterized in that: The sealing inner sleeve (8) gradually decreases in size from left to right, and the sealing inner sleeve (8) is made of rubber material.

6. The ring main unit incoming cable protection structure according to claim 1, characterized in that: Two protective rubber sleeves (7) are provided, and the two protective rubber sleeves (7) are the same size and shape, and the protective rubber sleeves (7) are arranged symmetrically.

Images