CN219554186U

CN219554186U - Wire hole sealing structure on power distribution cabinet

Info

Publication number: CN219554186U
Application number: CN202320555473.2U
Authority: CN
Inventors: 雷声福
Original assignee: Hubei Xindian Electric Co ltd
Current assignee: Hubei Xindian Electric Co ltd
Priority date: 2023-03-16
Filing date: 2023-03-16
Publication date: 2023-08-18
Anticipated expiration: 2033-03-16

Abstract

The utility model provides a wire hole sealing structure on a power distribution cabinet, and belongs to the technical field of power distribution cabinets. The corrugated pipe comprises an inner penetrating pipe, a corrugated pipe inserted in the inner penetrating pipe and an outer sleeve pipe connected with the end part of the inner penetrating pipe in a threaded manner, wherein the length of the corrugated pipe in a natural state is larger than the inner hole length of the inner penetrating pipe, one end, far away from the outer sleeve pipe, of the inner penetrating pipe is provided with a first limiting step for limiting one end part of the corrugated pipe, and the outer sleeve pipe is internally provided with a second limiting step for limiting the other end part of the corrugated pipe; the outer wall surface of the inner penetrating pipe is provided with a first limiting shaft shoulder, and the outer wall surface of the outer sleeve is provided with a second limiting shaft shoulder. The utility model has the advantages of good sealing effect and the like.

Description

Wire hole sealing structure on power distribution cabinet

Technical Field

The utility model belongs to the technical field of power distribution cabinets, and relates to a wire hole sealing structure on a power distribution cabinet.

Background

The power distribution cabinet needs to adjust the types and the quantity of inlet wires and outlet wires according to actual conditions, the power distribution cabinet belongs to non-prefabricated members, and the inlet and outlet wire parts are difficult to directly connect the external wires of the cabinet with the internal wires of the cabinet through a traditional inserting mode (such as a socket plug structure), so that the wire holes of the inlet and outlet wires of the power distribution cabinet need to be detachable, wire adding, wire subtracting and other operations, and good sealing performance is needed to avoid impurities such as water, dust and the like from entering the cabinet body from the wire inlet and outlet holes.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a wire hole sealing structure on a power distribution cabinet, and the technical problem to be solved by the utility model is how to improve the sealing performance of the wire inlet and outlet positions of the power distribution cabinet.

The aim of the utility model can be achieved by the following technical scheme: the wire hole sealing structure on the power distribution cabinet is characterized by comprising an inner through pipe, a corrugated pipe inserted in the inner through pipe and an outer sleeve pipe in threaded connection with the end part of the inner through pipe, wherein the length of the corrugated pipe in a natural state is larger than the inner hole length of the inner through pipe, one end of the inner through pipe, far away from the outer sleeve pipe, is provided with a first limiting step for limiting one end part of the corrugated pipe, and the outer sleeve pipe is internally provided with a second limiting step for limiting the other end part of the corrugated pipe; the outer wall surface of the inner penetrating pipe is provided with a first limiting shaft shoulder, and the outer wall surface of the outer sleeve is provided with a second limiting shaft shoulder.

Further, the end part of the corrugated pipe is clamped by two clamping pieces, and the two clamping pieces are riveted by rivets.

The structure is used for a wire inlet hole or a wire outlet hole of a power distribution cabinet, when threading is carried out, a wire harness can be sleeved firstly, namely, the wire harness is tightly tied through a rubber pipe, then the wire harness passes through an inner penetrating pipe, a corrugated pipe and an outer sleeve pipe simultaneously, the outer sleeve pipe is screwed at the end part of the inner penetrating pipe, the corrugated pipe is compressed in the screwing process, the outer protruding part of the corrugated pipe further protrudes outwards in the compression process, the concave part is further contracted inwards, the inner diameter of the corrugated pipe is reduced, the outer diameter of the corrugated pipe is increased, the wire harness can be tightly wrapped through the inner wall surface of the corrugated pipe, the outer wall surface of the corrugated pipe can be tightly pressed with the inner penetrating pipe, and the sealing between the wire harness and the power distribution cabinet body is realized.

Drawings

Fig. 1 is a schematic view of the structure in an assembled state of the wire hole sealing structure.

Fig. 2 is an exploded view of the present wire hole sealing structure.

Fig. 3 is a sectional view of the present wire hole sealing structure in a state of being mated with the cabinet.

In the figure, 1, an inner penetrating pipe; 2. a bellows; 3. an outer sleeve; 4. a first limiting step; 5. a limiting step II; 6. a first limiting shaft shoulder; 7. and a second limiting shaft shoulder.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

The wire hole sealing structure on the power distribution cabinet shown in fig. 1-3 comprises an inner through pipe 1, a corrugated pipe 2 inserted into the inner through pipe 1 and an outer sleeve 3 in threaded connection with the end part of the inner through pipe 1, wherein the length of the corrugated pipe 2 in a natural state is larger than the inner hole length of the inner through pipe 1, one end of the inner through pipe 1 far away from the outer sleeve 3 is provided with a first limiting step 4 for limiting one end part of the corrugated pipe 2, and the outer sleeve 3 is internally provided with a second limiting step 5 for limiting the other end part of the corrugated pipe 2; the outer wall surface of the inner penetrating pipe 1 is provided with a limiting shaft shoulder I6, and the outer wall surface of the outer sleeve 3 is provided with a limiting shaft shoulder II 7.

The end of the corrugated pipe 2 is clamped by two clamping pieces, the two clamping pieces are riveted by rivets, the rivets and the clamping pieces are used for preserving the shape of the two ends of the corrugated pipe 2, so that the corrugated pipe 2 is prevented from being deformed in the extrusion process, and the corrugated pipe 2 can not be twisted to a large extent by utilizing small friction resistance between metal and the clamping pieces in the screwing process of the outer sleeve 3 relative to the inner penetrating pipe 1.

The structure is used for a wire inlet hole or a wire outlet hole of a power distribution cabinet, when threading is carried out, a wire harness can be sleeved firstly, namely the wire harness is tightly tied through a rubber pipe, then the wire harness passes through an inner penetrating pipe 1, a corrugated pipe 2 and an outer sleeve 3 simultaneously, the outer sleeve 3 is screwed at the end part of the inner penetrating pipe 1, the corrugated pipe 2 is compressed in the screwing process, the outer protruding part of the corrugated pipe 2 is further protruding outwards in the compression process, the inner concave part is further shrunk inwards, the inner diameter of the corrugated pipe 2 is reduced, the outer diameter is increased, the wire harness can be tightly wrapped through the inner wall surface of the corrugated pipe 2, the outer wall surface of the corrugated pipe 2 can be tightly pressed with the inner penetrating pipe 1, and sealing between the wire harness and a cabinet body of the power distribution cabinet is realized.

Compression is realized between the inner penetrating pipe 1 and the outer sleeve 3 and the cabinet body through the first limiting shaft shoulder 6 and the second limiting shaft shoulder 7, and gaskets can be arranged to control the compression degree of the corrugated pipe 2 so as to adapt to wire harnesses with different outer diameters in a certain range, and the cabinet body can be provided with a sandwich structure or an inner reinforcing plate at the part so as to improve the strength of a threading part and the sealing area of a sealing part.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides a line hole seal structure on switch board, its characterized in that includes interior poling (1), inserts bellows (2) and threaded connection in interior poling (1) tip outer tube (3), the length of bellows (2) is greater than interior poling (1) hole length under the nature state, the one end that interior poling (1) kept away from outer tube (3) has spacing step one (4) that carries out spacing to one of them tip of bellows (2), have spacing step two (5) that carry out spacing to the other tip of bellows (2) in outer tube (3); the outer wall surface of the inner penetrating pipe (1) is provided with a first limiting shaft shoulder (6), and the outer wall surface of the outer sleeve (3) is provided with a second limiting shaft shoulder (7).

2. The wire hole sealing structure on the power distribution cabinet according to claim 1, wherein the end part of the corrugated pipe (2) is clamped by two clamping pieces, and the two clamping pieces are riveted by rivets.