CN212251604U

CN212251604U - Corrugated polytetrafluoroethylene sealing sleeve

Info

Publication number: CN212251604U
Application number: CN202020740971.0U
Authority: CN
Inventors: 郝鹏
Original assignee: Shanghai Lilong Chemical Fiber Co ltd
Current assignee: Shanghai Lilong Chemical Fiber Co ltd
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2020-12-29
Anticipated expiration: 2030-05-08

Abstract

The utility model belongs to the seal cover field, concretely relates to ripple formula polytetrafluoroethylene seal cover, including installing the ripple cover at the coupling port, ripple cover tip is provided with the connection limit, it is protruding that the upper end on connection limit is provided with stopper and annular, ripple cover, connection limit, stopper and the protruding formula structure as an organic whole of annular. The utility model discloses a connect the limit through the upper end design of ripple cover, connect the limit design on the edge, through designing a plurality of stoppers and the spacing groove cooperation that the coupling bottom designed, and adopt the cooperation of lock sleeve and coupling, will connect the limit locking, simple to operate, and can prevent that the connection edge on the ripple cover from producing relative rotation with the coupling hair and leading to connecting to become flexible, make the connection more reliable; through the annular bulge of connection edge design on the bellows cover, through the annular groove cooperation of annular bulge and coupling bottom design, can increase area of contact, and multichannel seal structure can make sealing performance better.

Description

Corrugated polytetrafluoroethylene sealing sleeve

Technical Field

The utility model relates to a seal cover technical field specifically is a corrugated polytetrafluoroethylene seal cover.

Background

At present, when some pipelines are connected, some deviation exists when hard metal pipes are installed, or installation is inconvenient due to overlong or overlong, so that some compensators with telescopic performance are used. The compensator is mainly used for sealing connection, is corrugated, and can be made of materials selected according to liquid transmitted by a pipeline. The polytetrafluoroethylene sealing sleeve is a high-molecular compound formed by polymerizing tetrafluoroethylene, and has excellent chemical stability, corrosion resistance, sealing property, high lubrication non-adhesiveness, electric insulation property and good ageing resistance. High temperature resistance, long-term use temperature of 200 ℃ and 260 ℃, low temperature resistance, and softness at-100 ℃; corrosion resistance, namely, the paint can resist aqua regia and all organic solvents; weather resistance — optimum aging life in plastics; high lubrication-with the lowest coefficient of friction in plastics (0.04); non-stick-having minimal surface tension in solid materials without sticking any substances.

The corrugated sealing sleeve made of polytetrafluoroethylene used by the existing pipe joint is inconvenient to mount, and when the corrugated sealing sleeve is vibrated, the sealing sleeve and the joint can rotate relatively to cause loose connection, the contact area of the sealing sleeve and the pipe joint is small, and the sealing property of the sealing sleeve needs to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a corrugated polytetrafluoroethylene seal cover has solved the sealed compensator that current coupling used inconvenient, have when the installation and connect not hard up problem, has still improved sealing performance.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a corrugated polytetrafluoroethylene seal cover, is including installing the ripple cover at the coupling port, ripple cover tip is provided with the connection limit, the upper end on connection limit is provided with stopper and annular arch, ripple cover, connection limit, stopper and the protruding formula structure as an organic whole of annular, there is the lock sleeve outside of coupling through threaded connection.

Preferably, the lower end of the pipe joint is provided with a limiting groove, and a limiting block is clamped in the limiting groove.

Preferably, the lower end of the pipe joint is provided with an annular groove, and an annular bulge is sleeved in the annular groove.

Preferably, the surface of the corrugated sleeve is corrugated, the corrugated sleeve is made of polytetrafluoroethylene materials, and the thickness of the corrugated sleeve is 2 millimeters.

Preferably, the number of the connecting edges is two, and the two connecting edges are symmetrically distributed at the lower ends of the corrugated sleeve.

Preferably, every the quantity of stopper on the connection edge is eight, eight the stopper is the annular array at the connection edge and arranges.

Preferably, the middle part of the locking sleeve is provided with a through groove, and the locking sleeve is tightly attached to the connecting edge.

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

1. the utility model discloses a limit is connected in the upper end design of ripple cover, connects the edge design stopper, and through the spacing groove cooperation of designing a plurality of stoppers and coupling bottom design, and adopt the cooperation of lock sleeve and coupling, will connect limit locking, simple to operate, and can prevent that the connection limit on the ripple cover from taking place relative rotation with the coupling hair and leading to being connected not hard up for it is more reliable to connect.

2. The utility model discloses a connection edge design annular protruding on the ripple sheathe, through the annular groove cooperation of annular protruding and coupling bottom design, can increase area of contact, and multichannel seal structure, can be so that sealing performance is better.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the structure of part A of FIG. 1 according to the present invention;

fig. 3 is a top view of the bellows of fig. 1 according to the present invention.

In the figure: 1. a pipe joint; 11. a limiting groove; 12. an annular groove; 2. a corrugated sleeve; 21. a connecting edge; 22. a limiting block; 23. an annular projection; 3. a locking sleeve; 31. a through groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Please refer to fig. 1-3, a corrugated polytetrafluoroethylene sealing sleeve comprises a corrugated sleeve 2 installed at a port of a pipe joint 1, a connecting edge 21 is arranged at the end part of the corrugated sleeve 2, a limiting block 22 and an annular protrusion 23 are arranged at the upper end of the connecting edge 21, the corrugated sleeve 2, the connecting edge 21, the limiting block 22 and the annular protrusion 23 are of an integrated structure, a sealing sleeve structure is formed by the corrugated sleeve 2, the connecting edge 21, the limiting block 22 and the annular protrusion 23, and the outer side of the pipe joint 1 is connected with a locking sleeve 3 through threads.

Referring to fig. 2, the lower end of the pipe joint 1 is provided with a limiting groove 11, and a limiting block 22 is clamped in the limiting groove 11. Through the cooperation of spacing groove 11 and spacing piece 22, can make connecting edge 21 and coupling 1 can't take place relative rotation for still can keep connecting stably under the earthquake condition.

Referring to fig. 2, the lower end of the pipe joint 1 is provided with an annular groove 12, and an annular protrusion 23 is fitted in the annular groove 12. By the cooperation of the annular groove 12 and the annular protrusion 23, a sealing structure can be formed, so that the sealing performance is better.

Referring to fig. 1, the surface of the bellows 2 is corrugated, the bellows 2 is made of teflon, and the thickness of the bellows 2 is 2 mm. Through the design of corrugate, can make bellows 2 have certain elasticity, can stretch out and draw back the compensation.

Referring to fig. 3, the number of the connecting edges 21 is two, and the two connecting edges 21 are symmetrically distributed at the upper and lower ends of the corrugated sleeve 2. Each connecting edge 21 is connected with the pipe joint 1, so that a relative sealing structure can be formed, and the sealing of pipeline connection is ensured.

Referring to fig. 3, the number of the limiting blocks 22 on each connecting edge 21 is eight, and the eight limiting blocks 22 are arranged on the connecting edge 21 in an annular array. Through the design of a plurality of limiting blocks 22, the connecting edge 21 is not easy to rotate relative to the pipe joint 1.

Referring to fig. 2, a through groove 31 is formed in the middle of the locking sleeve 3, and the locking sleeve 3 is tightly attached to the connecting edge 21. Through the design of the through slot 31, the bellows 2 can be passed through the locking sleeve 3.

The utility model discloses the concrete implementation process as follows: when this seal cover is installed to needs, pass lock sleeve 3 with the connection limit 21 on the bellows cover 2 earlier, then will connect the bottom cooperation of limit 21 and coupling 1, make stopper 22 and spacing groove 11 cooperation, annular protrusion 23 and ring channel 12 cooperation, then with lock sleeve 3 with coupling 1 through threaded connection can, all install the connection limit 21 at both ends according to this mode, simple to operate is swift, and through stopper 22 and spacing groove 11's cooperation, can make and connect unable the rotation after 21 installs, can keep relatively stable, connect reliable and stable, through the annular groove 12 cooperation of annular protrusion 23 with coupling 1 bottom design, can increase area of contact, and multichannel seal structure, can make sealing performance better.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a corrugated polytetrafluoroethylene seal cover, is including installing bellows (2) at coupling (1) port, its characterized in that: corrugated sleeve (2) tip is provided with connects limit (21), the upper end of connecting limit (21) is provided with stopper (22) and annular arch (23), corrugated sleeve (2), connection limit (21), stopper (22) and annular arch (23) formula structure as an organic whole, there is lock sleeve (3) in the outside of coupling (1) through threaded connection.

2. A corrugated polytetrafluoroethylene sealing sleeve according to claim 1, characterised in that: the lower end of the pipe joint (1) is provided with a limiting groove (11), and a limiting block (22) is clamped in the limiting groove (11).

3. A corrugated polytetrafluoroethylene sealing sleeve according to claim 1, characterised in that: the lower end of the pipe joint (1) is provided with an annular groove (12), and an annular bulge (23) is sleeved in the annular groove (12).

4. A corrugated polytetrafluoroethylene sealing sleeve according to claim 1, characterised in that: the surface of the corrugated sleeve (2) is corrugated, the corrugated sleeve (2) is made of polytetrafluoroethylene materials, and the thickness of the corrugated sleeve (2) is 2 millimeters.

5. A corrugated polytetrafluoroethylene sealing sleeve according to claim 1, characterised in that: the number of the connecting edges (21) is two, and the two connecting edges (21) are symmetrically distributed at the upper end and the lower end of the corrugated sleeve (2).

6. A corrugated polytetrafluoroethylene sealing sleeve according to claim 1, characterised in that: every quantity of stopper (22) on connecting limit (21) is eight, eight stopper (22) are the annular array and arrange on connecting limit (21).

7. A corrugated polytetrafluoroethylene sealing sleeve according to claim 1, characterised in that: the middle part of the locking sleeve (3) is provided with a through groove (31), and the locking sleeve (3) is tightly attached to the connecting edge (21).