CN102767647B

CN102767647B - Sealing pipe sleeve

Info

Publication number: CN102767647B
Application number: CN201210281477.2A
Authority: CN
Inventors: 刘晓波; 杨颖�; 罗显光
Original assignee: CSR Zhuzhou Electric Locomotive Co Ltd
Current assignee: CRRC Zhuzhou Locomotive Co Ltd
Priority date: 2012-08-09
Filing date: 2012-08-09
Publication date: 2014-11-26
Anticipated expiration: 2032-08-09
Also published as: CN102767647A

Abstract

The invention relates to a sealing pipe sleeve which is used for sealing pipelines. The pipe sleeve comprises a pipe sleeve outer wall and an elastic pipe sleeve inner wall, wherein the pipe sleeve inner wall is not smooth, and a vacuum cavity or a decompression cavity is arranged between the pipe sleeve outer wall and the pipe sleeve inner wall. By the aid of the pipe sleeve, gaps can be automatically filled in, the structure is simple, the assembly and the disassembly are convenient, and the pipe sleeve is suitable to sealing of harnesses, round pipelines or square pipelines.

Description

A kind of sealed tube

Technical field

The present invention relates to a kind of sealed tube for closed conduit.

Background technique

No matter be the driver's cab of building construction, engineering vehicle, rail vehicles or passenger accommodation etc., all inevitably have many pipelines or wire harness and pass through body of wall.While crossing body of wall in order to reduce device for cleaning pipeline, gas leakage or leakage sound, improve its sealability, at present the main method of shutoff or the seal approach such as eyelet strip of customization of adopting.

But wire harness was when interting body of wall hole, the number of wire harness, the size of wire harness has many uncertainties conventionally; Equally, the diameter of pipeline also has more uncertainty.After installation, often at body of wall hole and wire harness or pipeline enclosure, leave larger space.

Summary of the invention

The object of the invention is to, for the deficiencies in the prior art, provide a kind of sealed tube, can fill pipe and body of wall between gap.

Technological scheme of the present invention is that a kind of sealed tube, comprises pipe box outer wall and be with flexible pipe box inwall, described pipe box inwall is non-smooth morphology, and is the cavity of vacuum or decompression between pipe box inwall and pipe box outer wall.

Pipe box is arranged in the body of wall that needs tubulature road, pipe box cavity inside is pumped into vacuum, when pipeline is through after sealed tube, to cavity, puts into air, air promotes the expansion of pipe box inwall after entering cavity, and crush seal is carried out in the gap between pipeline and sealed tube inwall.

Described pipe box inwall indentation or wavy, indentation or wavy pipe box inwall interval and pipe box outer wall are connected, and form the cavity of a plurality of little vacuum or decompression

One end of pipe box is provided with the convex shoulder radially extending to pipe box outside along pipe box, and during installation, convex shoulder can be stuck in one end of body of wall, the convenient assembling degree of depth of controlling pipe box.

Sealed tube of the present invention has from filling gap function, simple in structure, is convenient to mounting or dismounting; Both be applicable to the sealing of wire harness, be also applicable to the sealing of circle or square pipe.

Accompanying drawing explanation

Fig. 1 is a kind of embodiment's of sealed tube sectional view;

Fig. 2 is sealed tube scheme of installation in Fig. 1.

Embodiment

As shown in Figure 1, a kind of sealed tube, comprise pipe box outer wall 31 and be with flexible pipe box inwall 32, pipe box inwall 32 indentations, and be the cavity of vacuum or decompression between pipe box inwall 32 and pipe box outer wall 31, pipe box inwall 32 intervals and the pipe box outer wall 31 of indentation are connected, and form the cavity 33 of a plurality of little vacuum or decompression.

One end of pipe box is provided with the convex shoulder 34 radially extending to pipe box outside along pipe box.

As shown in Figure 2, during sealed tube assembling, first sealed tube 3 is passed to body of wall 2, again pipeline 1 is inserted in sealed tube 3, vacuum is pumped in pipe box cavity 33 inside, and when pipeline 1 is through after sealed tube 3, available fine needle punctures pipe box inwall 32 and puts into air to cavity 33, air enters 32 expansions of the rear promotion pipe box of cavity 33 inwall, and crush seal is carried out in the gap between pipeline 1 and sealed tube inwall 32.

Claims

1. a sealed tube, comprises pipe box outer wall (31) and is with flexible pipe box inwall (32), and it is characterized in that, described pipe box inwall (32) is non-smooth morphology, and is the cavity of vacuum or decompression between pipe box inwall (32) and pipe box outer wall (31); Described pipe box inwall (32) indentation or wavy, described indentation or wavy pipe box inwall (32) interval and pipe box outer wall (31) are connected, and form the cavity (33) of a plurality of little vacuum or decompression.

2. sealed tube according to claim 1, is characterized in that, one end of described pipe box is provided with the convex shoulder (34) radially extending to pipe box outside along pipe box.