CN210890058U

CN210890058U - High-pressure asbestos sealing gasket

Info

Publication number: CN210890058U
Application number: CN201921807023.8U
Authority: CN
Inventors: 刘飞
Original assignee: Yangzhong City Yonggong Seal Co ltd
Current assignee: Yangzhong City Yonggong Seal Co ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2020-06-30
Anticipated expiration: 2029-10-25

Abstract

The utility model relates to the technical field of sealing gaskets, and discloses a high-pressure asbestos sealing gasket, has solved the problem that present asbestos sealing gasket needs the extrusion of great power to seal, easily leads to sealed effect poor to and easy atress warp the damage, reduce the leakproofness, change the extravagant cost, it includes the sealing gasket body, shaft hole has been seted up at the middle part of the sealing gasket body upper end, the utility model discloses, through the setting of upper bulge loop, upper edge ring, lower bulge loop and lower edge ring, upper bulge loop and lower bulge loop bear great power in the middle part when connecting the atress, the atress compression is inseparabler with adapting unit middle part contact surface, and upper edge ring and lower edge ring receive less power, and with adapting unit outside in close contact with, through such structure, thereby improved the connection leakproofness; through steel wire net layer and wear-resisting film setting, the structural strength of the sealing gasket body that the steel wire net layer increases, the atress warp damaged when effectual avoiding the compression, and wear-resisting film has improved the corrosion resistance and the wear resistance of sealing gasket body.

Description

High-pressure asbestos sealing gasket

Technical Field

The utility model belongs to the technical field of sealed the pad, specifically be a high-pressure asbestos seals pad.

Background

The sealing gasket is a sealing spare part used for machines, equipment and pipelines as long as the fluid exists, and the sealing gasket is made of an internal material and an external material and plays a role in sealing.

The two sides of the existing asbestos sealing gasket are smooth, the sealing effect can be achieved only by extrusion under large pressure when the asbestos sealing gasket is used, the sealing effect is poor due to the structure, in addition, the asbestos sealing gasket is soft in material, deformation or damage is easy to occur under large extrusion force, the sealing performance is reduced, and the replacement cost is wasted.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a high pressure asbestos is sealed fills up, the effectual sealed pad of asbestos of having solved needs the extrusion of great power just can seal, easily leads to sealed effect poor to and easy atress warp the damage, reduces the leakproofness, changes the problem of extravagant cost.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high pressure asbestos sealing gasket, including the sealing gasket body, the shaft hole has been seted up at sealing gasket body upper end middle part, the shaft hole upper end outside is connected with the bulge loop, sealing gasket body upper end is close to the edge and is connected with the upper limb ring, the upper annular groove has been seted up between upper limb ring and the upper bulge loop, the shaft hole lower extreme is kept away from upper bulge loop one side and is connected with lower bulge loop, sealing gasket body lower extreme is close to the edge and is connected with lower limb ring, lower annular groove has been seted up between lower limb ring and the lower bulge loop, it has the connecting hole to go up evenly to run through between annular groove and the lower annular groove, sealing gasket body includes asbestos basic unit, the steel wire stratum reticulare, rubber layer and wear-resistant film.

Preferably, the upper convex ring and the upper edge ring are arranged symmetrically with the lower convex ring and the lower edge ring around the center of the sealing gasket body, and the upper convex ring and the lower convex ring are respectively higher than the upper edge ring and the lower edge ring.

Preferably, the upper annular groove, the upper convex ring and the upper edge ring are all provided with an upper cambered surface.

Preferably, the lower annular groove, the lower convex ring and the bottom of the lower edge ring are provided with lower cambered surfaces.

Preferably, the upper convex ring, the upper side ring, the lower convex ring and the lower side ring are all made of rubber materials.

Preferably, the wear-resistant film is made of a polytetrafluoroethylene film.

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

(1) the utility model discloses, through the setting of upper bulge loop, upper limb ring, lower bulge loop and lower limb ring, upper bulge loop and lower limb ring bear great power in the middle part when connecting the atress, and the atress compression is inseparabler with adapting unit middle part contact surface, and upper limb ring and lower limb ring receive less power, and with adapting unit outside in close contact with, through such structure, thereby improved the connection leakproofness;

(2) the structural strength of the sealing gasket body is increased by the steel wire mesh layer and the wear-resistant film, the stress deformation is damaged when the compression is effectively avoided, and the wear-resistant film improves the corrosion resistance and the wear resistance of the sealing gasket body.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

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

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic view of the layered structure of the gasket body of the present invention;

in the figure: 1. a gasket body; 2. a shaft hole; 3. an upper convex ring; 4. an upper edge ring; 5. an upper annular groove; 6. a lower convex ring; 7. a lower edge ring; 8. a lower annular groove; 9. connecting holes; 10. an asbestos-based layer; 11. a steel wire mesh layer; 12. a rubber layer; 13. a wear resistant film; 14. an upper arc surface; 15. a lower cambered surface.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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 first embodiment, as shown in fig. 1, 2 and 3, the present invention comprises a gasket body 1, wherein a shaft hole 2 is formed in the middle of the upper end of the gasket body 1 to facilitate fluid flow inside a connecting member, an upper protruding ring 3 is connected to the outer side of the upper end of the shaft hole 2, an upper ring 4 is connected to the upper end of the gasket body 1 near the edge, an upper annular groove 5 is formed between the upper ring 4 and the upper protruding ring 3, a lower protruding ring 6 is connected to the lower end of the shaft hole 2 far from the upper protruding ring 3, a lower ring 7 is connected to the lower end of the gasket body 1 near the edge, a lower annular groove 8 is formed between the lower ring 7 and the lower protruding ring 6, the upper protruding ring 3 and the lower protruding ring 6 are adapted to bear a large force in the middle when the connecting member is stressed, the upper protruding ring 3 and the lower protruding ring 6 are compressed by a smaller force to be in contact with the connecting member, the upper ring 4 and the lower ring 7 are in, be used for connecting two adapting unit, sealing pad body 1 includes asbestos basic unit 10, steel wire mesh layer 11, rubber layer 12 and wear-resisting film 13, and the outside parcel of asbestos basic unit 10 has steel wire mesh layer 11 for increase structural strength, and the outside parcel of steel wire mesh layer 11 has rubber layer 12, and rubber layer 12 external connection has wear-resisting film 13, improves wear-resisting effect.

In the second embodiment, on the basis of the first embodiment, the upper convex ring 3 and the upper convex ring 4, and the lower convex ring 6 and the lower convex ring 7 are symmetrically arranged about the center of the gasket body 1, and the upper convex ring 3 and the lower convex ring 6 are respectively higher than the upper convex ring 4 and the lower convex ring 7, and are symmetrically arranged, so that the stress at the two ends is balanced, and the upper convex ring 3 and the lower convex ring 6 are slightly high, so that the center is conveniently stressed by a larger force.

In the third embodiment, on the basis of the first embodiment, the upper arc surfaces 14 are formed at the bottoms of the upper annular groove 5, the upper convex ring 3 and the upper edge ring 4, so that the upper convex ring 3 and the upper edge ring 4 are prevented from being damaged when being stressed.

In the fourth embodiment, on the basis of the first embodiment, the lower arc surfaces 15 are formed at the bottoms of the lower annular groove 8, the lower convex ring 6 and the lower side ring 7, so that the lower convex ring 6 and the lower side ring 7 are prevented from being damaged when being stressed.

In the fifth embodiment, on the basis of the first embodiment, the upper convex ring 3, the upper edge ring 4, the lower convex ring 6 and the lower edge ring 7 are made of rubber materials, so that the compression and the close contact with the connecting part are facilitated when a force is applied.

In the sixth embodiment, on the basis of the first embodiment, the wear-resistant film 13 is made of a polytetrafluoroethylene film, and has high corrosion resistance and good wear resistance.

The working principle is as follows: when using, arrange sealing pad body 1 in between two adapting unit, two adapting unit are fastened under the connection of bolt, during the connection, last bulge loop 3 and last bulge loop 4 and lower bulge loop 6 and lower bulge loop 7 on the sealing pad body 1 are atress simultaneously, because last bulge loop 3 and lower bulge loop 6 are higher than last bulge loop 4 and lower bulge loop 7 a little, during the feasible atress, last bulge loop 3 and lower bulge loop 6 are at first atress, after the atress, go up bulge loop 3 and lower bulge loop 6 compression and adapting unit middle part in close contact with, along with atress gradually, go up bulge loop 4 and lower bulge loop 7 stress compression after that, with adapting unit outside zonulae occludens, through the structure, make sealing pad body 1 leakproofness when connecting good, and sealing pad body 1 inside contains steel wire stratum reticulare 11, structural strength has been increased, avoid the compression impaired.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 high-pressure asbestos sealing gasket, includes sealing gasket body (1), its characterized in that: the middle part of the upper end of the sealing pad body (1) is provided with a shaft hole (2), the outer side of the upper end of the shaft hole (2) is connected with an upper convex ring (3), the upper end of the sealing pad body (1) is connected with an upper edge ring (4) close to the edge, an upper annular groove (5) is formed between the upper edge ring (4) and the upper convex ring (3), one side of the lower end of the shaft hole (2) away from the upper convex ring (3) is connected with a lower convex ring (6), the lower end of the sealing pad body (1) is connected with a lower edge ring (7) close to the edge, a lower annular groove (8) is formed between the lower edge ring (7) and the lower convex ring (6), connecting holes (9) are uniformly penetrated between the upper annular groove (5) and the lower annular groove (8), the sealing pad body (1) comprises an asbestos base layer (10), a steel wire mesh layer (11), a rubber layer, the rubber layer (12) wraps the outside of the steel wire mesh layer (11), and the wear-resistant film (13) is connected to the outside of the rubber layer (12).

2. The high-pressure asbestos gasket according to claim 1, characterized in that: go up bulge loop (3) and upper edge ring (4) and lower bulge loop (6) and lower edge ring (7) and set up about gasket body (1) central symmetry, and go up bulge loop (3) and lower bulge loop (6) and be higher than upper edge ring (4) and lower edge ring (7) respectively.

3. The high-pressure asbestos gasket according to claim 1, characterized in that: the bottom of the upper annular groove (5), the bottom of the upper convex ring (3) and the bottom of the upper edge ring (4) are provided with upper cambered surfaces (14).

4. The high-pressure asbestos gasket according to claim 1, characterized in that: lower cambered surfaces (15) are arranged at the bottoms of the lower annular groove (8), the lower convex ring (6) and the lower side ring (7).

5. The high-pressure asbestos gasket according to claim 1, characterized in that: the upper convex ring (3), the upper edge ring (4), the lower convex ring (6) and the lower edge ring (7) are all made of rubber materials.

6. The high-pressure asbestos gasket according to claim 1, characterized in that: the wear-resistant film (13) is made of a polytetrafluoroethylene film.