CN210128077U

CN210128077U - Rotary compression sealing structure

Info

Publication number: CN210128077U
Application number: CN201921008595.XU
Authority: CN
Inventors: 张和毅; 王国磊; 陈俊飞
Original assignee: Shanghai Xianri Technology And Control Technology Co Ltd
Current assignee: Shanghai Xianri Technology And Control Technology Co Ltd
Priority date: 2019-07-01
Filing date: 2019-07-01
Publication date: 2020-03-06
Anticipated expiration: 2029-07-01

Abstract

The utility model discloses a rotatory seal structure that compresses tightly relates to machinery. The sealing structure comprises a workpiece and a sealing element, wherein the sealing element comprises a rotating sleeve, the rotating sleeve is provided with an internal thread matched with the workpiece so as to be in threaded fit with the workpiece, and a support for sleeving an O-shaped ring and a sealing seat for mounting the support are arranged in the rotating sleeve; and a rotating gap is arranged between the sealing seat and the rotating sleeve. The utility model discloses a set up rotation gap between seal receptacle and swivel nut for O type circle can not take place relative rotation with the work piece after the sealed face of contact work piece, thereby can effectively avoid O type circle to wear and tear at the in-process of relapse dismouting, prolongs the life of O type circle.

Description

Rotary compression sealing structure

Technical Field

The utility model relates to the field of machinary, specifically a rotatory seal structure that compresses tightly.

Background

The seal is a material or a part that prevents fluid or solid particles from leaking from between adjacent bonding surfaces and prevents foreign substances such as dust and moisture from intruding into parts inside the machine equipment. The storage room temperature of the sealing element is preferably below 30 ℃, so that the sealing element is prevented from high-temperature aging.

At present, O-shaped ring sealing is mostly used in the sealing design. However, the conventional sealing structure has a defect that the sealing ring and a workpiece still rotate relatively after contacting with the workpiece, so that the O-shaped ring is easy to wear in the frequent dismounting occasion, and the sealing structure often scratches or impresses the sealing surface of the workpiece.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rotatory seal structure that compresses tightly to solve above-mentioned problem.

In order to achieve the above object, the utility model provides a following technical scheme:

a rotary compression sealing structure comprises a workpiece and a sealing element, wherein the sealing element comprises a rotary sleeve, the rotary sleeve is provided with an internal thread matched with the workpiece, and a support for sleeving an O-shaped ring and a sealing seat for mounting the support are arranged in the rotary sleeve; and a rotating gap is arranged between the sealing seat and the rotating sleeve.

In a further aspect: the bracket is made of plastic.

In a further aspect: one end of the sealing seat, which is far away from the workpiece, is integrally formed with an extension block, and the extension block extends out of the rotary sleeve and is connected with a nut through threaded fit.

In a further aspect: the nut is a knurled nut.

In a further aspect: the nut is made of stainless steel materials.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a set up rotation gap between seal receptacle and swivel nut for O type circle can not take place relative rotation with the work piece after the sealed face of contact work piece, thereby can effectively avoid O type circle to wear and tear at the in-process of relapse dismouting, prolongs the life of O type circle.

Drawings

Fig. 1 is a schematic structural diagram of the present invention in a separated state.

Fig. 2 is a schematic structural view of the present invention in a sealing state.

Notations for reference numerals: 1-workpiece, 2-rotary sleeve, 21-internal thread, 3-bracket, 4-O-shaped ring, 5-sealing seat, 51-extension block and 6-nut.

Detailed Description

The present invention will be described in detail with reference to the following embodiments, wherein like or similar elements are designated by like reference numerals throughout the drawings or description, and wherein the shape, thickness or height of the various elements may be expanded or reduced in practical applications. The embodiments of the present invention are provided only for illustration, and not for limiting the scope of the present invention. Any obvious and obvious modifications or alterations to the present invention can be made without departing from the spirit and scope of the present invention.

Example 1

Referring to fig. 1-2, in an embodiment of the present invention, a rotary compression sealing structure includes a workpiece 1 and a sealing member, the sealing member includes a rotary sleeve 2, the rotary sleeve 2 has an internal thread 21 matched with the workpiece 1, so as to be capable of performing a thread fit with the workpiece 1, and a support 3 for sleeving an O-ring 4 and a sealing seat 5 for mounting the support 3 are disposed in the rotary sleeve 2; a rotating gap is formed between the sealing seat 5 and the rotating sleeve 2, when the sealing device is used, the rotating sleeve 2 is screwed to connect the workpiece 1 and a sealing piece, when the O-shaped ring 4 moves to a position where the sealing surface of the workpiece 1 is contacted, the rotating gap is formed between the sealing seat 5 and the rotating sleeve 2, the support 3, the O-shaped ring 4 and the sealing seat 5 which form a whole can stop rotating under the action of friction resistance between the O-shaped ring 4 and the sealing surface, and the rotating sleeve 2 continues to be screwed in, so that the O-shaped ring 4 is compressed to complete sealing.

Summarizing, in this embodiment, through set up rotation gap between seal receptacle 5 and swivel sleeve 2 for O type circle 4 can not take place relative rotation with work piece 1 after the sealed face of contact work piece 1, thereby can effectively avoid O type circle 4 at the in-process wearing and tearing of relapse dismouting, extension O type circle 4's life.

Furthermore, the support 3 is made of plastic, so that the sealing surface of the workpiece 1 can be protected, and the sealing surface is prevented from being scratched.

Example 2

The embodiment of the utility model provides a difference lies in at embodiment 1:

one end integrated into one piece that work piece 1 was kept away from to seal receptacle 5 has extension piece 51, and extension piece 51 stretches out swivel housing 2 and connects nut 6 through screw-thread fit, when needing to change O type circle 4 like this, can manually unscrew nut 6 from seal receptacle 5 to take out seal receptacle 5 from swivel housing 2, need not borrow any instrument, it is more convenient to change O type circle 4 like this.

Further, the nut 6 is a knurled nut.

Furthermore, the nut 6 is made of stainless steel materials, so that the service life is guaranteed.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A rotary compression sealing structure comprises a workpiece (1) and a sealing element, wherein the sealing element comprises a rotary sleeve (2), the rotary sleeve (2) is provided with an internal thread (21) matched with the workpiece (1), and a support (3) for sleeving an O-shaped ring (4) and a sealing seat (5) for installing the support (3) are arranged in the rotary sleeve (2); the device is characterized in that a rotating gap is arranged between the sealing seat (5) and the rotating sleeve (2).

2. The rotary compression seal arrangement according to claim 1, characterised in that the carrier (3) is made of plastic.

3. The rotary compacting sealing structure according to claim 1 or 2, characterized in that the end of the sealing seat (5) far away from the workpiece (1) is integrally formed with an extension block (51), and the extension block (51) extends out of the rotary sleeve (2) and is connected with the nut (6) through threaded fit.

4. The rotary compression seal arrangement of claim 3, characterised in that the nut (6) is a knurled nut.

5. The rotary compression seal arrangement of claim 4, characterised in that the nut (6) is made of stainless steel material.