CN212251116U

CN212251116U - Recoverable wear-resisting sealing rubber gasket

Info

Publication number: CN212251116U
Application number: CN202020393547.3U
Authority: CN
Inventors: 高学芬
Original assignee: Tianjin Xinjuyuan Valve Manufacturing Co ltd
Current assignee: Tianjin Xinjuyuan Valve Manufacturing Co ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-12-29
Anticipated expiration: 2030-03-25

Abstract

The utility model discloses a recoverable wear-resisting sealing rubber packing ring, including the becket, be provided with first rubber circle and first rubber circle top in the first constant head tank and run through first constant head tank and outwards extend, be provided with second rubber circle and second rubber circle top in the second constant head tank and run through the second constant head tank and outwards extend, first rubber circle and second rubber circle external diameter all coat and have heat-resisting coating, heat-resisting coating outside all coats and has wear-resisting coating. The utility model discloses in, when wearing and tearing appear in first rubber circle or second rubber circle surface, under the rebound effort of first spring or second spring, can make first rubber circle or second rubber circle can continue to keep and two terminal surfaces between closely laminate, sealed effect keeps better, and sealing rubber packing ring live time is also longer, and heat-resisting coating and wear-resisting coating can make sealing rubber packing ring's ageing rate slower moreover, and life is longer, is worth wideling popularize.

Description

Recoverable wear-resisting sealing rubber gasket

Technical Field

The utility model relates to a rubber products technical field especially relates to a recoverable wear-resisting sealing rubber packing ring.

Background

The combined sealing washer is formed by integrally bonding and vulcanizing a rubber ring and a metal ring, is a sealing ring for sealing connection of threads and flanges, comprises the metal ring and a rubber sealing gasket, is subjected to rust prevention treatment, is generally made of oil-resistant nitrile rubber or fluororubber, is used for sealing a threaded pipe joint and a screw plug, is generally used together with a ferrule type pipe joint for plugging an oil port, is mainly used for end face static sealing at the threaded connection part of the hydraulic valve pipe joint, and is suitable for end face static sealing at British and American standard British threads, French and Germany standard metric threads and the like.

Common sealing rubber packing ring simple structure on the market at present, after long-time use, the rubber packing ring surface produces wearing and tearing very easily, in case the wearing and tearing appear just can lead to sealed effect variation, just must change in order not to influence normal leakproofness, leads to the very big waste of cost, if use in the high-temperature high-pressure chemical environment, high temperature high pressure also can lead to the ageing speed of rubber packing ring to accelerate, and life shortens.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a recoverable wear-resistant sealing rubber gasket.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the recoverable wear-resistant sealing rubber gasket comprises a metal ring, wherein a first limiting groove is formed in the upper portion of the metal ring, a first limiting block is arranged in the first limiting groove, the center of the bottom of the first limiting block is fixedly connected to the top of a first spring, the bottom of the first spring is fixedly connected to the bottom of the first limiting groove, a first positioning groove is formed in the top of the first limiting groove, a first rubber ring is arranged in the first positioning groove, the top of the first rubber ring penetrates through the first positioning groove and extends outwards, a second limiting groove is formed in the lower portion of the metal ring, a second limiting block is arranged in the second limiting groove, the center of the top of the second limiting block is fixedly connected to the bottom of a second spring, the top of the second spring is fixedly connected to the top of the second limiting groove, a second positioning groove is formed in the bottom of the second limiting groove, a second rubber ring is arranged in the second positioning groove, and the top of the second rubber ring penetrates through The outer diameters of the first rubber ring and the second rubber ring are respectively coated with a heat-resistant coating, and the outer sides of the heat-resistant coatings are respectively coated with a wear-resistant coating.

As a further description of the above technical solution:

the center of the metal ring is provided with a through hole which penetrates through the upper end and the lower end of the metal ring.

As a further description of the above technical solution:

and the first rubber ring and the first positioning groove and the second rubber ring and the second positioning groove are connected in a sliding manner tightly.

As a further description of the above technical solution:

and the first limiting block and the first limiting groove as well as the second limiting block and the second limiting groove are connected in a sliding manner tightly.

As a further description of the above technical solution:

and non-curing type sealant is coated on the inner walls of the first positioning groove and the second positioning groove.

As a further description of the above technical solution:

the heat-resistant coating is made of an aluminum carbonate fiber coating.

As a further description of the above technical solution:

the wear-resistant coating is made of a silicon carbide ceramic coating.

The utility model discloses following beneficial effect has:

1. in the utility model, the sealing rubber gasket is firstly placed between two end faces of the sealing connection part, and the first rubber ring and the second rubber ring are respectively clung to the two end faces, when the two end faces are mutually compressed, the first rubber ring and the second rubber ring can be pushed to slide towards the first positioning groove and the second positioning groove, and then the first limiting block and the second limiting block are pushed to slide in the first limiting groove and the second limiting groove and compress the first spring and the second spring, when the surface of the first rubber ring or the second rubber ring is worn, under the rebounding acting force of the first spring or the second spring, the first rubber ring or the second rubber ring can be pushed to slide towards the first positioning groove or the second positioning groove, thereby the first rubber ring or the second rubber ring can continuously keep the tight fit with the two end faces, the sealing effect is better kept, and the service life of the sealing rubber gasket is longer, thereby reducing waste of cost.

2. The utility model discloses in, have heat-resisting coating and wear-resisting coating in first rubber circle and the surface of second rubber circle in succession, the heat-resisting property of first rubber circle and second rubber circle can be strengthened to heat-resisting coating, and wear-resisting coating can strengthen the wear resistance of first rubber circle and second rubber circle, just so can make the sealing rubber packing ring heat-resisting more and wear-resisting in the highly compressed chemical environment of high temperature, and ageing speed is slower, and life is also longer, is worth wideling popularize.

Drawings

Fig. 1 is a schematic structural view of a recoverable wear-resistant sealing rubber gasket according to the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

fig. 3 is an enlarged view at B in fig. 1.

Illustration of the drawings:

1. a metal ring; 2. a first rubber ring; 3. a second rubber ring; 4. a through hole; 5. a heat-resistant coating; 6. a wear-resistant coating; 7. a first positioning groove; 8. a first limit groove; 9. a first stopper; 10. a first spring; 11. a second positioning groove; 12. a second limit groove; 13. a second limiting block; 14. a second spring.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a recoverable wear-resistant sealing rubber gasket comprises a metal ring 1, wherein a first limiting groove 8 is formed in the upper portion in the metal ring 1, a first limiting block 9 is arranged in the first limiting groove 8, the center of the bottom of the first limiting block 9 is fixedly connected to the top end of a first spring 10, the bottom end of the first spring 10 is fixedly connected to the bottom of the first limiting groove 8, a first positioning groove 7 is formed in the top of the first limiting groove 8, a first rubber ring 2 is arranged in the first positioning groove 7, the top of the first rubber ring 2 penetrates through the first positioning groove 7 to extend outwards, the sealing rubber gasket is firstly placed between two end faces of a sealing connection part when in use, the first rubber ring 2 is tightly attached to one end face, when the two end faces are mutually compressed, the first rubber ring 2 can be pushed to slide in the first positioning groove 7, the first limiting block 9 is further pushed to slide in the first limiting groove 8 and compress the first spring 10, a second limiting groove 12 is arranged at the lower part in the metal ring 1, a second limiting block 13 is arranged in the second limiting groove 12, the center position of the top part of the second limiting block 13 is fixedly connected with the bottom end of a second spring 14, the top end of the second spring 14 is fixedly connected with the top part in the second limiting groove 12, a second positioning groove 11 is arranged at the bottom part of the second limiting groove 12, a second rubber ring 3 is arranged in the second positioning groove 11, the top part of the second rubber ring 3 penetrates through the second positioning groove 11 and extends outwards, when in use, the sealing rubber gasket is firstly placed between the two end surfaces of the sealing connection part, and the second rubber ring 3 is tightly attached to the other end surface, when the two end surfaces are mutually compressed, the second rubber ring 3 can be pushed to slide into the second positioning groove 11, and then the second limiting block 13 is pushed to slide into the second limiting groove 12 and compress the second spring 14, when the surface of the first rubber ring 2, under the rebound acting force of the first spring 10 or the second spring 14, the first rubber ring 2 or the second rubber ring 3 can be pushed to slide towards the first positioning groove 7 or the second positioning groove 11, so that the first rubber ring 2 and the second rubber ring 3 are always kept to be tightly attached to the two end faces, the sealing effect is kept good all the time, the outer diameters of the first rubber ring 2 and the second rubber ring 3 are coated with the heat-resistant coating 5, and the outer side of the heat-resistant coating 5 is coated with the wear-resistant coating 6.

A through hole 4 is arranged at the central position of the metal ring 1, the through hole 4 penetrates through the upper end and the lower end of the metal ring 1, the first rubber ring 2 and the first positioning groove 7 as well as the second rubber ring 3 and the second positioning groove 11 are connected tightly and slidably, and the first limit block 9 and the first limit groove 8 and the second limit block 13 and the second limit groove 12 are connected tightly and slidably, in addition, the inner walls of the first positioning groove 7 and the second positioning groove 11 are coated with non-curing type sealant which can enhance the sealing performance of the sealing rubber gasket, the heat-resistant coating 5 is made of an aluminum carbonate fiber coating which can enhance the heat resistance of the first rubber ring 2 and the second rubber ring 3, the material of the wear-resistant coating 6 is a silicon carbide ceramic coating which can enhance the wear resistance of the surfaces of the first rubber ring 2 and the second rubber ring 3.

The working principle is as follows: when in use, the sealing rubber gasket is firstly placed between two end faces of a sealing connection part, so that the first rubber ring 2 is tightly attached to one end face and the second rubber ring 3 is tightly attached to the other end face, when the two end faces are mutually pressed, the first rubber ring 2 can be pushed to slide towards the first positioning groove 7, the first limiting block 9 is further pushed to slide towards the first limiting groove 8 and compress the first spring 10, meanwhile, the second rubber ring 3 can be pushed to slide towards the second positioning groove 11, the second limiting block 13 is further pushed to slide towards the second limiting groove 12 and compress the second spring 14, when the surface of the first rubber ring 2 or the second rubber ring 3 is worn, under the rebounding action force of the first spring 10 or the second spring 14, the first rubber ring 2 or the second rubber ring 3 can be pushed to slide towards the first positioning groove 7 or the second positioning groove 11, so that the first rubber ring 2 and the second rubber ring 3 are always tightly attached to the two end faces, and the heat-resistant coating 5 can enhance the heat resistance of the first rubber ring 2 and the second rubber ring 3, and the wear-resistant coating 6 can enhance the wear resistance of the surfaces of the first rubber ring 2 and the second rubber ring 3, so that the service life of the sealing rubber gasket is longer.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A recoverable wear-resistant sealing rubber gasket, comprising a metal ring (1), characterized in that: a first limiting groove (8) is formed in the upper portion of the inner portion of the metal ring (1), a first limiting block (9) is arranged in the first limiting groove (8), the center of the bottom of the first limiting block (9) is fixedly connected to the top end of a first spring (10), the bottom of the first spring (10) is fixedly connected to the bottom of the inner portion of the first limiting groove (8), a first limiting groove (7) is formed in the top of the first limiting groove (8), a first rubber ring (2) is arranged in the first limiting groove (7), the top of the first rubber ring (2) penetrates through the first limiting groove (7) to extend outwards, a second limiting groove (12) is formed in the lower portion of the inner portion of the metal ring (1), a second limiting block (13) is arranged in the second limiting groove (12), the center of the top of the second limiting block (13) is fixedly connected to the bottom end of a second spring (14), the top of the second spring (14) is fixedly connected to the top of the second limiting groove (12), second spacing groove (12) bottom is provided with second constant head tank (11), it runs through second constant head tank (11) and outwards extends to be provided with second rubber ring (3) and second rubber ring (3) top in second constant head tank (11), first rubber ring (2) and second rubber ring (3) external diameter all coat have heat-resisting coating (5), heat-resisting coating (5) outside all coat have wear-resisting coating (6).

2. The recoverable wear-resistant sealing rubber gasket of claim 1, wherein: the center of the metal ring (1) is provided with a through hole (4), and the through hole (4) penetrates through the upper end and the lower end of the metal ring (1).

3. The recoverable wear-resistant sealing rubber gasket of claim 1, wherein: and the first rubber ring (2) is in tight sliding connection with the first positioning groove (7) and the second rubber ring (3) is in tight sliding connection with the second positioning groove (11).

4. The recoverable wear-resistant sealing rubber gasket of claim 1, wherein: and the first limiting block (9) is in sliding connection with the first limiting groove (8) and the second limiting block (13) is in sliding connection with the second limiting groove (12).

5. The recoverable wear-resistant sealing rubber gasket of claim 1, wherein: and non-curing type sealant is coated on the inner walls of the first positioning groove (7) and the second positioning groove (11).

6. The recoverable wear-resistant sealing rubber gasket of claim 1, wherein: the heat-resistant coating (5) is made of an aluminum carbonate fiber coating.

7. The recoverable wear-resistant sealing rubber gasket of claim 1, wherein: the wear-resistant coating (6) is made of a silicon carbide ceramic coating.