CN216306712U - High-sealing-performance polytetrafluoroethylene sealing gasket - Google Patents
High-sealing-performance polytetrafluoroethylene sealing gasket Download PDFInfo
- Publication number
- CN216306712U CN216306712U CN202123203171.9U CN202123203171U CN216306712U CN 216306712 U CN216306712 U CN 216306712U CN 202123203171 U CN202123203171 U CN 202123203171U CN 216306712 U CN216306712 U CN 216306712U
- Authority
- CN
- China
- Prior art keywords
- sealing
- gasket
- polytetrafluoroethylene
- cushion body
- annular groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model discloses a high-sealing polytetrafluoroethylene sealing gasket, and belongs to the technical field of sealing gaskets. The sealing gasket comprises a gasket body, a central hole penetrating through the gasket body is formed in the middle of the gasket body, an annular sealing cavity is formed in the side wall of the central hole, a sealing body is filled in the sealing cavity, a sealing structure is arranged on the end face of one side of the gasket body, and a reinforcing structure is arranged inside the gasket body. The high-sealing-performance polytetrafluoroethylene sealing gasket adopting the structure can solve the problems of poor sealing effect, low strength and easy breakage of the existing polytetrafluoroethylene sealing gasket.
Description
Technical Field
The utility model relates to the technical field of sealing gaskets, in particular to a polytetrafluoroethylene sealing gasket with high sealing property.
Background
The polytetrafluoroethylene gasket has the characteristics of good acid resistance, alkali resistance, high temperature resistance and resistance to various organic solvents, is a clean sealing product, cannot pollute any substance contacted with the polytetrafluoroethylene gasket, and is widely applied to industries such as food, medicine and the like. The polytetrafluoroethylene sealing gasket is soft in texture, poor in strength and tear resistance and prone to fracture. In addition, the sealing effect of the ptfe gasket is to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a polytetrafluoroethylene sealing gasket with high sealing property, which solves the problems of poor sealing effect, low strength and easy breakage of the conventional polytetrafluoroethylene sealing gasket.
In order to achieve the purpose, the utility model provides a high-sealing polytetrafluoroethylene sealing gasket which comprises a gasket body, wherein a central hole penetrating through the gasket body is formed in the middle of the gasket body, an annular sealing cavity is formed in the side wall of the central hole, a sealing body is filled in the sealing cavity, a sealing structure is arranged on the end face of one side of the gasket body, and a reinforcing structure is arranged in the gasket body.
Preferably, the sealing structure comprises an annular groove, and at least one annular groove is arranged on one end face of the cushion body.
Preferably, the annular groove is coaxially arranged with the pad body.
Preferably, the end face of the cushion body provided with the sealing structure is provided with anti-skid grains.
Preferably, the reinforcing structure comprises metal nets, a plurality of metal nets are stacked in the cushion body, and cushion body materials are arranged between the adjacent metal nets.
Preferably, the metal net and the pad body are coaxially arranged.
Preferably, the sealing body is a water-swelling rubber sealing strip.
According to the high-sealing-performance polytetrafluoroethylene sealing gasket disclosed by the utility model, the sealing body made of the water-absorbing expansion rubber sealing strip is arranged in the middle of the side wall of the central hole, and the sealing body expands after absorbing water, so that the gasket body is more tightly attached to the connecting surface, and the sealing effect at the connecting surface is improved. The annular groove and the anti-skid grains arranged on the end surface of the cushion body can also improve the sealing effect at the connecting surface. The metal net arranged in the cushion body improves the strength and the tear resistance of the cushion body and has little influence on the deformability of the cushion body.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic longitudinal sectional view of an embodiment of a high-sealability polytetrafluoroethylene gasket according to the utility model;
FIG. 2 is a schematic top view of an embodiment of a high-sealability polytetrafluoroethylene seal of the present invention;
FIG. 3 is a schematic cross-sectional view of an embodiment of a high-sealability polytetrafluoroethylene seal gasket according to the utility model.
Reference numerals
1. A cushion body; 2. a central bore; 3. an annular groove; 4. a seal body; 5. a metal mesh; 6. and (4) anti-skid lines.
Detailed Description
The technical solution of the present invention is further illustrated by the accompanying drawings and examples.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Examples
Fig. 1 is a schematic longitudinal sectional structure diagram of an embodiment of a high-sealability polytetrafluoroethylene sealing gasket of the utility model, fig. 2 is a schematic top-view structure diagram of an embodiment of a high-sealability polytetrafluoroethylene sealing gasket of the utility model, and fig. 3 is a schematic cross-sectional structure diagram of an embodiment of a high-sealability polytetrafluoroethylene sealing gasket of the utility model. As shown in the figure, the high-sealing polytetrafluoroethylene sealing gasket comprises a gasket body 1, wherein the gasket body 1 is a round or square gasket made of polytetrafluoroethylene. The middle part of the cushion body 1 is provided with a central hole 2 which penetrates through the cushion body 1. The side wall of the central hole 2 is provided with an annular sealing cavity which is positioned in the middle of the side wall of the central hole 2. The sealing cavity is internally filled with a sealing body 4, and the sealing body 4 is a water-swelling rubber sealing strip. The sealing body 4 expands after absorbing water, so that the two ends of the cushion body 1 are more tightly attached to the connecting surface, the sealing effect is improved, the sealing body 4 can also wrap the connecting part more tightly, and the sealing effect of the connecting surface of the center hole 2 is improved.
The end face of one side of the cushion body 1 is provided with a sealing structure, the sealing structure comprises an annular groove 3, and the end face of one end of the cushion body 1 is at least provided with two annular grooves 3. The annular groove 3 is arranged coaxially with the cushion body 1. When the pressure of the sealed liquid is too high, the liquid can enter the annular groove 3 close to the central hole 2 through the connecting surface of the cushion body 1, the permeated liquid is collected in the annular groove 3, and the gas in the annular groove 3 is compressed, so that the pressure in the annular groove 3 is increased, the pressure of the liquid is balanced, the liquid cannot permeate continuously, and the sealing effect of the connecting surface of the cushion body 1 is improved.
The end surface of the cushion body 1 provided with the annular groove 3 is provided with anti-skid grains 6, and the anti-skid grains 6 are latticed anti-skid grains 6. The anti-skid lines 6 improve the anti-skid effect of the cushion body 1 on one hand; on the other hand, the anti-skid grains 6 divide the end surface of the cushion body 1 into a plurality of closed small chambers, and the closed small chambers have the sealing function similar to that of the annular groove 3, so that the sealing effect of the cushion body 1 is further improved.
The cushion body 1 is internally provided with a reinforcing structure. The reinforcing structure comprises metal nets 5, a plurality of metal nets 5 are stacked in the cushion body 1, and cushion body 1 materials are arranged between every two adjacent metal nets 5; namely, a plurality of metal nets 5 are distributed in the cushion body 1 in a dispersed way, and the metal nets 5 are embedded in the cushion body 1. The metal net 5 is in a grid structure, the contact area between the metal net 5 and the cushion body 1 is large, and the connection stability of the metal net 5 and the cushion body 1 is improved. The metal net 5 has higher strength and tearing resistance, and the metal net 5 has better deformability; the impact on the toughness and deformation performance of the cushion body 1 is small under the effect of improving the strength and tear resistance of the cushion body 1. The metal net 5 is coaxially arranged with the cushion body 1.
Therefore, the high-sealing-performance polytetrafluoroethylene sealing gasket adopting the structure can solve the problems of poor sealing effect, low strength and easy breakage of the existing polytetrafluoroethylene sealing gasket.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the utility model without departing from the spirit and scope of the utility model.
Claims (7)
1. The utility model provides a high leakproofness polytetrafluoroethylene sealed pad, includes the pad body, and the middle part of filling up the body is provided with the centre bore that runs through the pad body, its characterized in that: the side wall of the central hole is provided with an annular sealing cavity, the sealing cavity is filled with a sealing body, the end face of one side of the cushion body is provided with a sealing structure, and the inside of the cushion body is provided with a reinforcing structure.
2. The polytetrafluoroethylene gasket with high sealability as claimed in claim 1, wherein: the sealing structure comprises an annular groove, and at least one annular groove is arranged on one end face of the cushion body.
3. The polytetrafluoroethylene gasket with high sealability as claimed in claim 2, wherein: the annular groove and the cushion body are coaxially arranged.
4. The polytetrafluoroethylene gasket with high sealability as claimed in claim 1, wherein: the end face of the cushion body provided with the sealing structure is provided with anti-skid grains.
5. The polytetrafluoroethylene gasket with high sealability as claimed in claim 1, wherein: the reinforcing structure comprises metal nets, a plurality of metal nets are stacked in the pad body, and pad body materials are arranged between every two adjacent metal nets.
6. The polytetrafluoroethylene gasket with high sealing performance according to claim 5, wherein: the metal net and the cushion body are coaxially arranged.
7. The polytetrafluoroethylene gasket with high sealability as claimed in claim 1, wherein: the sealing body is a water-swelling rubber sealing strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123203171.9U CN216306712U (en) | 2021-12-20 | 2021-12-20 | High-sealing-performance polytetrafluoroethylene sealing gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123203171.9U CN216306712U (en) | 2021-12-20 | 2021-12-20 | High-sealing-performance polytetrafluoroethylene sealing gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216306712U true CN216306712U (en) | 2022-04-15 |
Family
ID=81084205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123203171.9U Active CN216306712U (en) | 2021-12-20 | 2021-12-20 | High-sealing-performance polytetrafluoroethylene sealing gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216306712U (en) |
-
2021
- 2021-12-20 CN CN202123203171.9U patent/CN216306712U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216306712U (en) | High-sealing-performance polytetrafluoroethylene sealing gasket | |
| CN102996792B (en) | A kind of metal o-ring | |
| CN208535155U (en) | A kind of combined sealed device | |
| CN204528015U (en) | General-purpose bottle stopper | |
| CN216951619U (en) | O-shaped sealing ring with multiple sealing surface functions | |
| CN208032519U (en) | A kind of autoclave | |
| CN201634053U (en) | Leak-proof sealing device | |
| CN213988726U (en) | Admittance capacitor type level switch with compensation | |
| CN209908535U (en) | Waterproof elastic sealing gasket for shield tunnel segment joint | |
| CN220600431U (en) | Flexible polytetrafluoroethylene sealing gasket | |
| CN200999861Y (en) | Flexible liquid filling hole cavity composite sealing ring | |
| CN201723194U (en) | High-temperature and high-pressure metal skeleton sealing rubber barrel | |
| CN212929529U (en) | Pressure tank sealing head with heat insulation structure | |
| CN210860203U (en) | Gasket for rough damaged flange | |
| CN207297866U (en) | Helicitic texture for segment hub seal | |
| CN208551732U (en) | A kind of quantitative hydraulic fluid pot washing brush | |
| CN217207709U (en) | High-pressure retraction elastic sealing gasket | |
| CN207603179U (en) | It is a kind of to cross linear sealing structure | |
| CN206708363U (en) | Piston sealing device | |
| CN219263155U (en) | Full-wrapping gasket | |
| CN206890998U (en) | A kind of door sealing structure and refrigerator | |
| CN201605563U (en) | Wave-shaped rubber waterstop | |
| CN205089964U (en) | Anti pressurization unit | |
| CN210890049U (en) | Polytetrafluoroethylene composite sealing gasket | |
| CN214330648U (en) | Waterproof sealing gasket for joint of pipe sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |