CN210484603U

CN210484603U - Polytetrafluoroethylene gasket

Info

Publication number: CN210484603U
Application number: CN201921551902.9U
Authority: CN
Inventors: 陈启阳; 陈昱同; 朱红美
Original assignee: Yangzhong Tongyu Fluoroplastics Co Ltd
Current assignee: Yangzhong Tongyu Fluoroplastics Co Ltd
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2020-05-08
Anticipated expiration: 2029-09-18

Abstract

The utility model discloses a polytetrafluoroethylene gasket relates to polytetrafluoroethylene material technical field, including the gasket body, the inside of gasket body is fixed with the steel wire layer, and the bottom of gasket body installs and bordure, the inside of gasket body is provided with buffer gear, and the up end inside of gasket body inlays and have the dull polish layer, the up end outside of gasket body side is seted up the through-hole. The utility model discloses in, the bottom of gasket body is equipped with borduring of cylinder, and when the gasket body was placed on the object down, bordured and to cup joint the periphery of object down, can enough fix the gasket body on the object down, inject the position of gasket body, prevent that the gasket body from taking place the incline or coming off, can increase the area of contact and the scope of whole gasket and object down simultaneously to promote the leakproofness.

Description

Polytetrafluoroethylene gasket

Technical Field

The utility model relates to a polytetrafluoroethylene materials technical field especially relates to polytetrafluoroethylene gasket.

Background

Polytetrafluoroethylene, commonly referred to as "non-stick coating" or "easy-to-clean material", has the characteristics of acid and alkali resistance, resistance to various organic solvents, and is almost insoluble in all solvents, and meanwhile, polytetrafluoroethylene has the characteristic of high temperature resistance, and has an extremely low friction coefficient. Therefore, the gasket can be made of polytetrafluoroethylene materials, and the sealing performance can be improved.

The existing polytetrafluoroethylene gasket is only provided with one annular gasket, when the gasket is used, the gasket is easily misaligned with an upper object and a lower object, so that the sealing performance is reduced, and when the gasket is installed, the gasket is easy to break when being subjected to external force instantly or quickly.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving only an annular gasket of current polytetrafluoroethylene gasket, when using, the gasket easily with last object and down the object between the butt joint inaccurate, lead to the leakproofness to descend, and when the installation, the gasket is in the twinkling of an eye or when receiving external force fast, the shortcoming of the cracked phenomenon of easy emergence, and the polytetrafluoroethylene gasket that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

polytetrafluoroethylene gasket, including the gasket body, the inside of gasket body is fixed with the steel wire layer, and the bottom of gasket body installs bordures, the inside of gasket body is provided with buffer gear, and the up end inside of gasket body inlays and has the dull polish layer, the up end outside of gasket body side is seted up the through-hole.

As a further description of the above technical solution:

the steel wire layer is of a net structure, and the steel wire layer and the gasket body are connected integrally through injection molding.

As a further description of the above technical solution:

the edge covering and the gasket body are fixedly connected, and the edge covering is of a cylindrical structure.

As a further description of the above technical solution:

buffer gear's inside is including last gasket, and the bottom activity of going up the gasket inlays and has lower gasket, go up gasket and lower gasket constitution gasket body, and the bottom face of going up the gasket has seted up the slot, the inside swing joint of slot has the inserted block, and constitutes the integration through moulding plastics between inserted block and the lower gasket and be connected, the top of inserted block is connected with the spring, and the inboard top of spring and slot is connected.

As a further description of the above technical solution:

the spring is connected between the insertion block and the slot, and the insertion block is movably connected with the slot.

As a further description of the above technical solution:

the frosting layer is the uneven column structure at the top surface of gasket body, and the frosting layer is the ring form and distributes.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, the bottom of gasket body is equipped with borduring of cylinder, and when the gasket body was placed on the object down, bordured and to cup joint the periphery of object down, can enough fix the gasket body on the object down, inject the position of gasket body, prevent that the gasket body from taking place the incline or coming off, can increase the area of contact and the scope of whole gasket and object down simultaneously to promote the leakproofness.

2. The utility model discloses in, the inside steel wire layer of gasket body is by two-layer constitution, is in the inside of gasket and lower gasket respectively, and the polytetrafluoroethylene material is moulded plastics in the inside and outside on steel wire layer, forms the gasket body, utilizes the steel wire layer can increase the toughness of gasket body, prevents that the gasket body is crooked.

3. The utility model discloses in, go up swing joint between gasket and the lower gasket, and the inserted block can reciprocate in the slot through the spring after the atress, then when last object pressed on last gasket, it is undulant from top to bottom to go up to have between gasket and the lower gasket, plays a cushioning effect, prevents to receive the atress too big in the twinkling of an eye and leads to the gasket to break or damaged.

Drawings

Fig. 1 is a schematic view of a split structure of a gasket body in the present invention;

FIG. 2 is a schematic view of a three-dimensional structure of a middle gasket body of the present invention;

fig. 3 is an enlarged schematic structural diagram of a in fig. 1 of the present invention.

Illustration of the drawings:

1. a gasket body; 2. a steel wire layer; 3. edge covering; 4. a buffer mechanism; 401. an upper gasket; 402. a lower gasket; 403. a slot; 404. inserting a block; 405. a spring; 5. sanding layer; 6. and a through hole.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, a teflon gasket comprises a gasket body 1, a steel wire layer 2 is fixed inside the gasket body 1, the steel wire layer 2 is of a net structure, the steel wire layer 2 and the gasket body 1 are integrally connected through injection molding, the steel wire layer 2 inside the gasket body 1 is composed of two layers and is respectively positioned inside an upper gasket 401 and a lower gasket 402, teflon materials are injected inside and outside the steel wire layer 2 to form the gasket body 1, the toughness of the gasket body 1 can be increased by using the steel wire layer 2 to prevent the gasket body 1 from bending, a wrapping edge 3 is installed at the bottom of the gasket body 1, the wrapping edge 3 and the gasket body 1 are fixedly connected, the wrapping edge 3 is of a cylindrical structure, a cylindrical wrapping edge 3 is arranged at the bottom of the gasket body 1, and when the gasket body 1 is placed on a lower object, the wrapping edge 3 can be sleeved on the periphery of the lower object, the gasket body 1 can be fixed on a lower object, the position of the gasket body 1 is limited, the gasket body 1 is prevented from deflecting or falling off, meanwhile, the contact area and the range of the whole gasket and the lower object can be increased, the sealing performance is improved, the buffer mechanism 4 is arranged in the gasket body 1, the buffer mechanism 4 comprises an upper gasket 401, the bottom end of the upper gasket 401 is movably embedded with a lower gasket 402, the upper gasket 401 and the lower gasket 402 form the gasket body 1, the bottom end face of the upper gasket 401 is provided with a slot 403, the interior of the slot 403 is movably connected with an insert block 404, the insert block 404 and the lower gasket 402 are integrally connected through injection molding, the top of the insert block 404 is connected with a spring 405, the spring 405 is connected with the top of the inner side of the slot 403, the spring 405 is connected between the insert block 404 and the slot 403, and the insert block 404 and the slot 403 are movably connected, go up swing joint between gasket 401 and the lower gasket 402, and inserted block 404 can reciprocate in slot 403 through spring 405 after the atress, then when last object pressure on last gasket 401, it can fluctuate from top to bottom to go up between gasket 401 and the lower gasket 402, play a cushioning effect, prevent in the twinkling of an eye that the atress is too big and lead to the gasket to break or damaged, and the up end inside of gasket body 1 inlays and has dull polish layer 5, dull polish layer 5 is rugged structure at the top surface of gasket body 1, and dull polish layer 5 is ring form distribution, the up end outside of gasket body 1 is equipped with through-hole 6.

The working principle is as follows: during the use, place gasket body 1 on the object down, and bordure 3 below the gasket body 1 then cup joints the periphery of object under, can enough fix gasket body 1 on the object down, prescribe a limit to gasket body 1's position, prevent that gasket body 1 from taking place the skew or coming off, can increase whole gasket and the area of contact and the scope of object down simultaneously, in order to promote the leakproofness, place the upper portion at gasket body 1 with last object again, and install, when last gasket 401 and lower gasket 402 receive the extrusion force, the inside spring 405 of slot 403 can produce a bounce, thereby make and float between last gasket 401 and the lower gasket 402 once, play a cushioning effect, the pressure that dispersion gasket body 1 received, after the installation, gasket body 1 can be in between object and the object down.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. Polytetrafluoroethylene gasket, including gasket body (1), its characterized in that, the inside of gasket body (1) is fixed with steel wire layer (2), and the bottom of gasket body (1) installs bordure (3), the inside of gasket body (1) is provided with buffer gear (4), and the up end inside of gasket body (1) inlays and has dull polish layer (5), the up end outside of gasket body (1) side is equipped with through-hole (6) certainly.

2. The polytetrafluoroethylene gasket according to claim 1, wherein the steel wire layer (2) is of a net structure, and the steel wire layer (2) and the gasket body (1) are integrally connected through injection molding.

3. The polytetrafluoroethylene gasket according to claim 1, wherein the edge (3) is fixedly connected with the gasket body (1), and the edge (3) is of a cylindrical structure.

4. The polytetrafluoroethylene gasket according to claim 1, wherein the inside of the buffer mechanism (4) comprises an upper gasket (401), a lower gasket (402) is movably embedded at the bottom end of the upper gasket (401), the upper gasket (401) and the lower gasket (402) form a gasket body (1), a slot (403) is formed in the bottom end face of the upper gasket (401), an insert block (404) is movably connected inside the slot (403), the insert block (404) and the lower gasket (402) are integrally connected through injection molding, a spring (405) is connected to the top of the insert block (404), and the spring (405) is connected to the top of the inner side of the slot (403).

5. The PTFE gasket of claim 4, wherein the spring (405) is connected between the insert (404) and the slot (403), and the insert (404) is movably connected with the slot (403).

6. The polytetrafluoroethylene gasket according to claim 1, wherein the frosted layer (5) is of a rugged structure on the top surface of the gasket body (1), and the frosted layer (5) is distributed in a circular ring shape.