A high-voltage cable branch box

Abstract

This utility model application discloses a high-voltage cable branch box, including a box body and a box door. The box door is installed in the box body, and a high-voltage cable brancher is installed inside the box body. It also includes a wire threading assembly, which is installed on the two side walls of the box body. The wire threading assembly includes several wire sleeve modules, each of which is respectively arranged on both sides of the box body. This high-voltage cable branch box opens a wire threading hole on the side of the box body and sets a wire sleeve module at the wire threading hole, so that the cable can be inserted into the box body through the wire sleeve module. The wire sleeve of the wire sleeve module has a frustum-shaped structure and is elastic. With the synergistic elastic sleeve action, it can wrap various cables of different sizes, thereby sealing the gap between the cable and the box body, effectively reducing the entry of external moisture and dust into the box body, ensuring the safety of the electrical environment inside the box body, and improving the safety performance of this branch box.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage electrical cabinet technology, specifically a high-voltage cable branch box. Background Technology

[0002] High-voltage cable distribution boxes are widely used for node connections in high-voltage cable systems and are the main electrical equipment for collecting and distributing cables after they exit the switchgear. The cable joints in the distribution boxes are tightly insulated with imported high-grade rubber, with no exposed live parts; the switches in distribution boxes with switches are all SF6 insulated load switches. High-voltage cable distribution boxes are widely used in power distribution networks in urban industrial parks, residential areas, commercial centers, mining areas, and large enterprises in industries such as steel, automobiles, petroleum, chemicals, and cement, as well as other applications. They are particularly suitable for urban power grid renovation projects, significantly reducing investment in electrical equipment and cables and improving power supply reliability.

[0003] Existing high-voltage cables have high voltage, current and other electrical parameters, which pose certain dangers. Therefore, they require a good environment when connected or plugged into corresponding power distribution devices. Existing high-voltage cable branch boxes require cables to be inserted into the box, and the insertion points of the cables in the branch boxes cannot be sealed. This allows external moisture, dust and other substances to easily enter the branch boxes, increasing the electrical safety risks such as leakage and affecting the environmental safety of the branch boxes, which cannot meet the user's needs. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a high-voltage cable branch box that can maintain the safety of the electrical environment inside the branch box.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-voltage cable branch box includes a box body and a box door. The box door is installed in the box body. A high-voltage cable brancher is installed in the box body. It also includes a wire threading assembly, which is installed on the two side walls of the box body. The wire threading assembly includes several wire sleeve modules, and each wire sleeve module is respectively arranged on both sides of the box body.

[0007] Several wire-passing holes are provided on both sides of the box, and the wire-passing module is fixedly installed at the wire-passing holes;

[0008] The wire wrapping module includes a wire wrapping sleeve, an elastic collar, and an elastic membrane. The wire wrapping sleeve is a frustum-shaped thin film structure made of an elastic membrane. An elastic collar is provided at the end of the wire wrapping sleeve with a smaller diameter. An elastic membrane is provided inside the elastic collar to seal the elastic collar. The end of the wire wrapping sleeve with a larger diameter is adapted to the wire hole. The larger end of the wire wrapping sleeve is fixedly installed at the wire hole along the edge of the wire hole.

[0009] The inner side of the wrapping sleeve is evenly provided with several guide strips.

[0010] Furthermore, the guide strip is attached to the inner wall of the wrapping sleeve.

[0011] Furthermore, the wrapping sleeve is integrally formed with the elastic sleeve and the elastic diaphragm.

[0012] Furthermore, a fixed protrusion is provided at the larger end edge of the wrapping sleeve. The fixed protrusion is attached to the outer wall of the box and is installed in the box through a fixed ring plate. The fixed ring plate is fixedly installed in the box, so that the fixed protrusion is clamped between the fixed ring plate and the box.

[0013] Furthermore, a sealing strip is provided on the surface of the box body near the door.

[0014] Compared with the prior art, the present invention provides a high-voltage cable branch box, which has the following advantages:

[0015] This high-voltage cable distribution box features a cable-passing hole on the side of the cabinet, with a cable-sleeving module installed at the hole. This allows cables to be threaded through the module into the box. The cable-sleeving module has a frustum-shaped and elastic structure, which, in conjunction with the elastic sleeve, can wrap around cables of various sizes, effectively sealing the gap between the cable and the box. This significantly reduces the entry of external moisture and dust into the box, ensuring a safe electrical environment and improving the safety performance of the distribution box. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the outer installation of the wire-sleeving module of this utility model;

[0018] Figure 3 This is a schematic diagram of the inner installation of the wire-sleeving module of this utility model;

[0019] Figure 4 This is a structural diagram of the new type of wire module used in this invention.

[0020] In the diagram: 1. Box body, 11. Threading hole, 2. Box door, 3. Sealing strip, 4. Wire sleeve module, 41. Wire wrapping sleeve, 42. Fixing flange, 43. Elastic collar, 44. Elastic diaphragm, 45. Flow guide strip, 5. Fixing ring plate. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1 to 4 The present invention provides the following technical solution:

[0023] A high-voltage cable branch box includes a box body 1 and a box door 2. The box door 2 is installed in the box body 1. A high-voltage cable brancher is installed inside the box body 1, which constitutes the basic functional structure of the cable branch box. The branch box also includes a cable threading assembly, which is installed on both side walls of the box body 1. The cable threading assembly is used to thread cables. The cable threading assembly includes several cable sleeve modules 4. Each cable sleeve module 4 is respectively arranged on both sides of the box body 1. The cable can be inserted into the cable sleeve module 4 and then inserted into the box body 1 to connect with the brancher.

[0024] Several wire holes 11 are provided on both sides of the housing 1, and the wire module 4 is fixedly installed at the wire holes 11.

[0025] The cable module 4 includes a cable wrapping sleeve 41, an elastic collar 43, and an elastic membrane. The cable wrapping sleeve 41 is a frustum-shaped thin film structure made of an elastic membrane. An elastic collar 43 is provided at the end of the cable wrapping sleeve 41 with a smaller diameter. An elastic membrane 44 is provided inside the elastic collar 43 to close the elastic collar 43. The cable wrapping sleeve 41, the elastic collar 43, and the elastic membrane 44 work together to close the cable hole 11. The end of the cable wrapping sleeve 41 with a larger diameter is adapted to the cable hole 11. The larger end of the cable wrapping sleeve 41 is fixedly installed at the cable hole 11 along the edge of the cable hole 11. Since the cable wrapping sleeve 41 has a frustum-shaped elastic membrane structure, it can adapt to cables of various sizes. It can wrap the cable through its own elasticity. At the same time, the elastic collar 43 can also stick tightly to the cable. The cable can pierce the elastic membrane 44 and then be inserted into the housing 1.

[0026] The inner side of the cable wrapping sleeve 41 is evenly provided with several guide strips 45. The guide strips 45 can reduce the friction between the cable and the cable wrapping sleeve 41, so that the cable can be better inserted into the cable wrapping sleeve 41.

[0027] The guide strip 45 is attached to the inner wall of the wrapping sleeve 41.

[0028] The wrapping sleeve 41 is integrally formed with the elastic sleeve and the elastic diaphragm 44, which facilitates production and manufacturing.

[0029] A fixed protrusion 42 is provided at the larger end edge of the wire wrapping sleeve 41. The fixed protrusion 42 fits against the outer wall of the box 1 and is installed on the box 1 by a fixed ring plate 5. The fixed ring plate is fixedly installed on the box 1, so that the fixed protrusion 42 is clamped between the fixed ring plate 5 and the box 1, thereby installing the wire wrapping module 4 at the wire hole 11.

[0030] A sealing strip 3 is provided on the surface of the box body 1 near the door 2 to seal the gap between the door 2 and the box body 1.

[0031] The specific implementation process is as follows:

[0032] When using this high-voltage cable branch box, first install the branch box in the predetermined position. When it is necessary to insert the cable, pass the cable through the sleeve module 4 at the predetermined position. When the cable is inserted into the wrapping sleeve 41, it can pass smoothly through the wrapping sleeve 41 under the action of each guide bar 45. If the size of the cable is larger than the size of part of the wrapping sleeve 41, the wrapping sleeve 41 will wrap around the surface of the cable under its own elasticity. The cable is then inserted into the elastic collar 43 and the elastic diaphragm 44 is pierced, so that the elastic collar 43 is fitted on the cable. Through the synergistic action of the wrapping sleeve 41 and the elastic collar 43, the gap between the cable hole 11 and the cable can be sealed. After the cable is installed, close the box door 2 to form a sealed space inside the box 1, which can effectively prevent dust and water, and improve the electrical environment safety inside the box 1.

[0033] This high-voltage cable branch box has a cable pass-through hole 11 on the side of the cabinet, and a cable sleeve module 4 is installed at the cable pass-through hole 11. The cable can be inserted into the box 1 through the cable sleeve module 4. The cable sleeve 41 of the cable sleeve module 4 has a frustum-shaped structure and is elastic. With the help of the elastic sleeve, it can wrap various cables of different sizes, thereby sealing the gap between the cable and the box 1. This effectively reduces the entry of external moisture and dust into the box 1, ensures the safety of the electrical environment inside the box 1, and improves the safety performance of this branch box.

[0034] The above description is merely an embodiment of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the applicability of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A high voltage cable branch box comprising a box body and a box door, the box door being mounted at the box body, a high voltage cable branch device being mounted in the box body, characterized in that: It also includes a wiring assembly, which is installed on both sides of the housing. The wiring assembly includes several wiring modules, each of which is respectively arranged on both sides of the housing. Several wire-passing holes are provided on both sides of the box, and the wire-passing module is fixedly installed at the wire-passing holes; The wire wrapping module includes a wire wrapping sleeve, an elastic collar, and an elastic membrane. The wire wrapping sleeve is a frustum-shaped thin film structure made of an elastic membrane. An elastic collar is provided at the end of the wire wrapping sleeve with a smaller diameter. An elastic membrane is provided inside the elastic collar to seal the elastic collar. The end of the wire wrapping sleeve with a larger diameter is adapted to the wire hole. The larger end of the wire wrapping sleeve is fixedly installed at the wire hole along the edge of the wire hole. The inner side of the wrapping sleeve is evenly provided with several guide strips.

2. The high voltage cable branch box according to claim 1, characterized in that: The guide strip is attached to the inner wall of the wrapping sleeve.

3. The high voltage cable branch box of claim 1, characterized in that: The wrapping sleeve, elastic sleeve, and elastic diaphragm are integrally formed.

4. The high voltage cable branch box of claim 1, characterized in that: A fixed protrusion is provided at the larger edge of the two wrapping sleeves. The fixed protrusion is attached to the outer wall of the box and is installed in the box through a fixed ring plate. The fixed ring plate is fixedly installed in the box, so that the fixed protrusion is clamped between the fixed ring plate and the box.

5. The high-voltage cable branch box according to claim 1, characterized in that: A sealing strip is provided on the surface of the box body near the door.

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