Waterproof silica gel sleeve for distribution box

Abstract

The utility model relates to the technical field of waterproof accessories of distribution boxes, and discloses a waterproof silica gel sleeve for a distribution box, which comprises a silica gel sleeve main body, at least one first sealing bulge is arranged in an inner cavity at one end of the silica gel sleeve main body, and an extrusion groove matched with the first sealing bulge is arranged on the silica gel sleeve main body; a wire penetrating-out hole is formed in the middle of an inner cavity of the silica gel sleeve body, a clamping groove is formed in the portion, located on the outer side of the wire penetrating-out hole, of the silica gel sleeve body, the clamping groove can be fixedly connected with a distribution box shell in a clamped mode, and a conical ring is arranged at the end, away from the extrusion groove, of the silica gel sleeve body. A second sealing bulge is arranged on the inner cavity wall of the conical ring; and at least one sealing ring is arranged in an inner cavity of the mounting sleeve. According to the utility model, the sealing performance of the silicon wire on the inner and outer sides of the silica gel sleeve and the box body is effectively ensured through an extrusion mode, and even if the silica gel sealing on one side fails, the other side can still ensure the sealing requirement in an application scene.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof accessories for distribution boxes, in particular to a waterproof silicone sleeve for distribution boxes. Background Art

[0002] The distribution box is a low-voltage distribution box that is assembled in a closed or semi-closed metal cabinet with switchgear, measuring instruments, protective electrical appliances and auxiliary equipment according to the electrical wiring requirements. The switchgear and measuring instruments are connected to the external circuit through wires. When the distribution box is placed outdoors, rainwater will penetrate into the distribution box through the wires.

[0003] In the prior art, a sealing silicone sleeve is usually arranged between the wire and the housing of the distribution box to improve the sealing performance of the housing to the wire and prevent rainwater from flowing into the inner cavity of the distribution box along the wire. The existing sealing silicone sleeve has a relatively simple sealing measure, poor waterproof performance, and has certain limitations in use. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a waterproof silicone sleeve for a distribution box, which solves the problems that the sealing silicone sleeves used in the existing distribution boxes have relatively simple sealing measures, poor waterproof performance and certain limitations in use.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a waterproof silicone sleeve for a distribution box, comprising a silicone sleeve main body, an inner cavity at one end of the silicone sleeve main body is arranged with at least one first sealing protrusion, an extrusion groove cooperating with the first sealing protrusion is arranged on the silicone sleeve main body, an elastic buckle is installed with an elastic ring in the extrusion groove, and the inner diameter of the elastic ring is smaller than the minimum inner diameter of the circle formed by the bottom of the extrusion groove; a wire outlet hole is arranged in the middle of the inner cavity of the silicone sleeve main body, a clamping groove is arranged on the outer side of the wire outlet hole on the silicone sleeve main body, and the clamping groove can be clamped and fixed with the distribution box housing, a conical ring is arranged at one end of the silicone sleeve main body away from the extrusion groove, a second sealing protrusion is arranged on the inner cavity wall of the conical ring, a mounting sleeve is fixedly connected to the end surface of the conical ring, an extrusion sleeve is threadedly connected to the mounting sleeve, and the extrusion sleeve can squeeze the conical ring when moving on the mounting sleeve, so that the second sealing protrusion is deformed; at least one sealing ring is arranged in the inner cavity of the mounting sleeve.

[0008] Preferably, the inner cavity of the silicone sleeve body is filled with a silicone sealing sleeve, which is arranged close to the first sealing protrusion. The edges of the inner holes on the silicone sealing sleeve are arranged with transition fillets, and the inner diameter of the silicone sealing sleeve is smaller than the wire outlet hole.

[0009] Preferably, the inner cavity of the silicone sleeve body is filled with a support ring, and the support ring is arranged close to the second sealing protrusion.

[0010] Preferably, an annular surface matching the conical ring is provided at one end of the extrusion sleeve close to the conical ring.

[0011] Preferably, the installation sleeve is not easily deformed during the process of screwing or removing the extrusion sleeve thread, and a plurality of screwing protrusions are evenly arranged on the outer surface of one end of the extrusion sleeve.

[0012] (III) Beneficial effects

[0013] The utility model has the following beneficial effects:

[0014] The waterproof silicone sleeve for the distribution box has an elastic ring arranged at one end of the silicone sleeve body, so that after the wire passes through the silicone sleeve body, under the extrusion of the elastic ring, the first sealing protrusion can be closely fitted with the surface of the wire. When there are multiple elastic rings, the sealing performance between the silicone sleeve body and the wire and the stability of the overall seal can be greatly improved; through the arranged conical ring, when the extrusion sleeve moves along the installation sleeve, the conical ring will be continuously compressed, thereby causing the second sealing protrusion to deform and closely fit with the surface of the wire, and due to the arranged sealing ring, the wire and the connecting sleeve can also be sealed, effectively ensuring the overall sealing of the wire and ensuring the waterproof effect of the distribution box. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the half-section structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the component disassembly structure of the utility model.

[0018] In the figure: 1. Silicone sleeve body; 2. First sealing protrusion; 3. Extrusion groove; 4. Elastic ring; 5. Clamping groove; 6. Silicone sealing sleeve; 7. Transition fillet; 8. Wire outlet hole; 9. Support ring; 10. Conical ring; 11. Second sealing protrusion; 12. Extrusion sleeve; 13. Installation sleeve; 14. Sealing ring; 15. Twisting protrusion. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1 The utility model provides a technical solution: a waterproof silicone sleeve for a distribution box, comprising a silicone sleeve main body 1, an inner cavity at one end of the silicone sleeve main body 1 is arranged with at least one first sealing protrusion 2, an extrusion groove 3 matched with the first sealing protrusion 2 is arranged on the silicone sleeve main body 1, an elastic buckle in the extrusion groove 3 is installed with an elastic ring 4, and the inner diameter of the elastic ring 4 is smaller than the minimum inner diameter of the circle formed by the bottom of the extrusion groove 3; a wire outlet hole 8 is arranged in the middle of the inner cavity of the silicone sleeve main body 1, and the silicone sleeve main body 1 is located at the wire outlet hole 8. A snap-in groove 5 is arranged on the outside, which can be snap-fitted and fixed to the distribution box shell. A conical ring 10 is arranged at the end of the silicone sleeve body 1 away from the extrusion groove 3, and a second sealing protrusion 11 is arranged on the inner cavity wall of the conical ring 10. A mounting sleeve 13 is fixedly connected to the end face of the conical ring 10, and an extrusion sleeve 12 is threadedly connected to the mounting sleeve 13. When the extrusion sleeve 12 moves on the mounting sleeve 13, it can squeeze the conical ring 10, so that the second sealing protrusion 11 is deformed; at least one sealing ring 14 is arranged in the inner cavity of the mounting sleeve 13.

[0021] The utility model arranges an elastic ring 4 at one end of the silicone sleeve body 1, so that after the wire passes through the silicone sleeve body 1, under the extrusion of the elastic ring 4, the first sealing protrusion 2 can be closely fitted with the surface of the guide. When the number of elastic rings 4 is multiple, the sealing performance between the silicone sleeve body 1 and the wire and the stability of the overall seal can be greatly improved; through the arrangement of the conical ring 10, during the movement of the extrusion sleeve 12 along the installation sleeve 13, the conical ring 10 will be continuously compressed, thereby causing the second sealing protrusion 11 to deform and closely fit with the surface of the wire, and due to the arrangement of the sealing ring 14, the wire and the connection sleeve can also be sealed, effectively ensuring the overall sealing of the wire and the waterproof effect of the distribution box.

[0022] In this embodiment, refer to Figure 2 As shown, the inner cavity of the silicone sleeve body 1 is filled with a silicone sealing sleeve, and the silicone sealing sleeve 6 is arranged near the first sealing protrusion 2. The inner hole edges of the silicone sealing sleeve 6 are arranged with transition fillets 7, and the inner diameter of the silicone sealing sleeve 6 is smaller than the wire passing hole 8. When the wire is passed through the inner cavity of the silicone sleeve body 1 for installation, the silicone sealing sleeve 6 can be deformed and closely fit the outer surface of the wire. Due to the arrangement of the transition fillet 7, the silicone sealing sleeve 6 can be easily opened when the wire passes through.

[0023] Reference Figure 2 As shown, in this embodiment, the inner cavity of the silicone sleeve body 1 is filled with a support ring 9, and the support ring 9 is arranged close to the second sealing protrusion 11. After the silicone sleeve body 1 is installed on the housing, the arranged support ring 9 and the silicone sealing sleeve 6 can play a fixed supporting role, effectively avoiding excessive deformation of the connection between the silicone sleeve body 1 and the housing, thereby affecting the stability of the clamping installation between the clamping groove 5 and the housing.

[0024] Reference Figure 2 and 3 As shown, in this embodiment, an annular surface matching the conical ring 10 is provided at one end of the extrusion sleeve 12 close to the conical ring 10. The provided annular surface can effectively increase the extrusion area when the extrusion sleeve 12 extrudes the conical ring 10 so that the second sealing protrusion 11 is deformed, thereby avoiding damage to the conical ring 10 caused by line-surface contact, thereby affecting its service life.

[0025] Reference Figure 2 and 3 As shown, in this embodiment, the installation sleeve 13 is not easily deformed during the process of screwing or removing the extrusion sleeve 12, and a plurality of twisting protrusions 15 are evenly arranged on the outer surface of one end of the extrusion sleeve 12. In order to ensure that the extrusion sleeve 12 can move smoothly on the installation sleeve 13, it is necessary to avoid the installation sleeve 13 being made of easily deformable materials, so it is generally made of rubber, hard plastic or common metal alloys and steel. Due to the provision of the twisting protrusions 15, it is convenient for personnel to twist the extrusion sleeve 12 daily to complete the adjustment of the tapered ring 10.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproof silicone sleeve for a distribution box, comprising a silicone sleeve body, characterized in that: The inner cavity at one end of the silicone sleeve main body is arranged with at least one first sealing protrusion, the silicone sleeve main body is arranged with an extrusion groove matched with the first sealing protrusion, the extrusion groove is elastically buckled with an elastic ring, the inner diameter of the elastic ring is smaller than the minimum inner diameter of the circle formed by the bottom of the extrusion groove; a wire outlet hole is arranged in the middle of the inner cavity of the silicone sleeve main body, a clamping groove is arranged on the silicone sleeve main body on the outside of the wire outlet hole, the clamping groove can be clamped and fixed with the distribution box shell, a conical ring is arranged at one end of the silicone sleeve main body away from the extrusion groove, a second sealing protrusion is arranged on the inner cavity wall of the conical ring, a mounting sleeve is fixedly connected to the end surface of the conical ring, an extrusion sleeve is threadedly connected to the mounting sleeve, and the extrusion sleeve can squeeze the conical ring when moving on the mounting sleeve to cause the second sealing protrusion to deform; the inner cavity of the mounting sleeve is arranged with at least one sealing ring.

2. The waterproof silicone sleeve for a distribution box according to claim 1, characterized in that: The inner cavity of the silicone sleeve body is filled with a silicone sealing sleeve, which is arranged close to the first sealing protrusion. The edges of the inner holes on the silicone sealing sleeve are all arranged with transition fillets, and the inner diameter of the silicone sealing sleeve is smaller than the wire outlet hole.

3. The waterproof silicone sleeve for a distribution box according to claim 2, characterized in that: The inner cavity of the silicone sleeve body is filled with a support ring, and the support ring is arranged close to the second sealing protrusion.

4. The waterproof silicone sleeve for a distribution box according to claim 1, characterized in that: An annular surface matching the conical ring is arranged at one end of the extrusion sleeve close to the conical ring.

5. The waterproof silicone sleeve for a distribution box according to claim 4, characterized in that: The installation sleeve is not easy to be deformed during the process of tightening or removing the extrusion sleeve thread, and a plurality of twisting protrusions are evenly arranged on the outer surface of one end of the extrusion sleeve.

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