CN213088751U

CN213088751U - Composite corrosion-resistant gasket

Info

Publication number: CN213088751U
Application number: CN202021721626.9U
Authority: CN
Inventors: 秦臻岳; 朱亚其
Original assignee: Novus Sealing Technology Shanghai Co ltd
Current assignee: Novus Sealing Technology Shanghai Co ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-04-30
Anticipated expiration: 2030-08-18

Abstract

The utility model discloses a compound gasket with anticorrosion, inner ring include the metal inner ring, and the metal inner ring's fixed surface is connected with the profile of tooth district, and the metal inner ring's surface cover is equipped with the fibrous layer, and the outside fixedly connected with tetrafluoro of fibrous layer covers the skin, and tetrafluoro covers skin and the metal inner ring's right side and passes through first bonding layer fixedly connected with winding district, and the winding district includes the first metal steel band with metal inner ring fixed connection, the utility model relates to a sealed technical field. According to the composite gasket, the metal outer ring of the gasket is not in contact with a medium, the cost of a product can be reduced by adopting a low-grade material, the polytetrafluoroethylene coating skin is coated outside the tooth-shaped area, so that the corrosion resistance of the gasket can be improved, the tooth-shaped structure provides extremely low sealing stress and leakage rate, the winding area formed by the middle metal steel belt and the soft seal has very high elastic seal and can seal higher pressure, and the gasket with the composite structure can be suitable for occasions with higher requirements on temperature alternation and higher leakage rate.

Description

Composite corrosion-resistant gasket

Technical Field

The utility model relates to a sealed technical field specifically is a compound gasket has anticorrosion.

Background

Gaskets are mechanical seals between two objects, typically to prevent pressure, corrosion, and natural thermal expansion and contraction leakage of the tubing between the two objects. Since the machined surface may not be perfect, the irregularities can be filled using shims. The gasket is typically made of a sheet material such as paper, rubber, silicone rubber, metal, cork, felt, neoprene, nitrile rubber, fiberglass, or plastic polymer. The gaskets for a particular application may contain asbestos.

One leak (usually in the middle) where a washer is a thin plate (usually circular) is usually a load thread fastener for distribution. Other uses are as spacers, springs, wear pads, pre-display devices, lock devices. Rubber gaskets are also used in faucets to shut off flowing liquids or gases. Rubber or silicon gaskets may also be used to reduce fan vibration. Typically the outside diameter of the gasket is about twice the inside diameter.

Although the corrosion resistance is improved by adding the soft seal in the existing composite gasket, the defects of large sealing pressure and high leakage rate are shown in the occasions with high leakage rate, the normal use can not be ensured in the occasions with high temperature alternation, and the problem of unreasonable assembly and easy deformation exists in the assembly of the composite gasket.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a have compound gasket of anticorrosion, solved and showed that sealing pressure is big and the problem that leakage rate is high in the higher occasion of leakage rate.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a gasket with compound anticorrosion, includes the inner ring, the inner ring includes the metal inner ring, the metal inner ring's fixed surface is connected with the profile of tooth district, the metal inner ring's surface cover is equipped with the fibrous layer, the skin is wrapped to the outside fixedly connected with tetrafluoro of fibrous layer, the skin is wrapped to the tetrafluoro and the metal inner ring's right side is through first adhesion layer fixedly connected with winding district, the winding district includes the first metal steel band with metal inner ring fixed connection, the soft sealing of right side fixedly connected with of first metal steel band, soft sealed right side fixedly connected with second metal steel band, the right side of second metal steel band is through second adhesion layer fixedly connected with metal outer loop.

Preferably, the inner wall of the fiber layer is fixedly connected with salient points clamped with the tooth-shaped area.

Preferably, the foaming material is filled between the left wall of the fiber layer and the left side of the metal inner ring.

Preferably, the right end of the metal inner ring is provided with a first triangular convex surface, and the left end of the first metal steel belt is provided with a first triangular notch.

Preferably, the right end of the second metal steel belt is provided with a second triangular convex surface, and the left end of the metal outer ring is provided with a second triangular notch.

Preferably, the surface of the metal outer ring is sprayed with an oxygen-isolating layer.

Advantageous effects

The utility model provides a compound gasket anticorrosives has. Compared with the prior art, the method has the following beneficial effects:

(1) the composite gasket is characterized in that the inner ring comprises a metal inner ring, the surface of the metal inner ring is fixedly connected with a tooth-shaped area, the surface of the metal inner ring is sleeved with a fiber layer, the outer side of the fiber layer is fixedly connected with a tetrafluoro coating skin, the right sides of the tetrafluoro coating skin and the metal inner ring are fixedly connected with a winding area through a first bonding layer, the winding area comprises a first metal steel belt fixedly connected with the metal inner ring, the right side of the first metal steel belt is fixedly connected with a soft seal, the right side of the soft seal is fixedly connected with a second metal steel belt, the right side of the second metal steel belt is fixedly connected with a metal outer ring through a second bonding layer, the metal outer ring of the gasket is not in contact with media, the cost of products can be reduced by adopting low-grade materials, the tetrafluoro coating skin outside the tooth-shaped area can improve the corrosion resistance of the gasket, the winding area formed by the middle metal steel band and the soft seal has high elastic seal and can seal higher pressure, and the gasket with the composite structure can be suitable for occasions with higher temperature alternation and higher requirement on leakage rate.

(2) This compound gasket, through the bump of the inner wall fixedly connected with and profile of tooth district looks block at the fibrous layer, it has the foaming thing to fill between the left wall of fibrous layer and the inner ring left side of metal, first triangle convex surface has been seted up to the inner ring right-hand member of metal, first triangle notch has been seted up to the left end of first metal steel band, second triangle convex surface has been seted up to the right-hand member of second metal steel band, second triangle notch has been seted up to the left end of metal outer loop, utilize the bump, the foaming thing, the cooperation of first triangle convex surface and second triangle convex surface, can make the assembly of whole device simple, and the assembly laminating degree is higher, be difficult for taking place to warp in the device use, and influence gasket normal use.

Drawings

FIG. 1 is a front cross-sectional view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a front view of the present invention.

In the figure: 1. an inner ring; 101. a metal inner ring; 102. a toothed region; 103. a fibrous layer; 104. coating a skin with tetrafluoro; 2. a first adhesive layer; 3. a winding zone; 301. a first metal steel strip; 302. soft sealing; 303. a second metal steel strip; 4. a metal outer ring; 5. salient points; 6. a foamed material; 7. a first triangular convex surface; 8. a first triangular notch; 9. a second triangular convex surface; 10. a second triangular notch; 11. an oxygen barrier layer; 12. a second adhesive layer.

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.

Referring to fig. 1-3, the present invention provides a technical solution: a composite anti-corrosion gasket comprises an inner ring 1, wherein the inner ring 1 comprises a metal inner ring 101, a tooth-shaped area 102 is fixedly connected to the surface of the metal inner ring 101, a fiber layer 103 is sleeved on the surface of the metal inner ring 101, a polytetrafluoroethylene coating skin 104 is fixedly connected to the outer side of the fiber layer 103, a winding area 3 is fixedly connected to the right sides of the polytetrafluoroethylene coating skin 104 and the metal inner ring 101 through a first bonding layer 2, the winding area 3 comprises a first metal steel strip 301 fixedly connected with the metal inner ring 101, a soft seal 302 is fixedly connected to the right side of the first metal steel strip 301, a second metal steel strip 303 is fixedly connected to the right side of the soft seal 302, a metal outer ring 4 is fixedly connected to the right side of the second metal steel strip 303 through a second bonding layer 12, the metal outer ring 4 of the gasket is not in contact with a medium, the cost of a product can be reduced by adopting a low-grade material, the polytetrafluoroethylene coating skin 104, the tooth-shaped structure provides extremely low sealing stress and leakage rate, the winding area 3 composed of the middle metal steel belt and the soft seal 302 has high elastic seal and can seal higher pressure, the gasket with the composite structure can be suitable for occasions with larger temperature alternation and higher leakage rate requirement, the inner wall of the fiber layer 103 is fixedly connected with a convex point 5 clamped with the tooth-shaped area 102, a foaming object 6 is filled between the left wall of the fiber layer 103 and the left side of the metal inner ring 101, the right end of the metal inner ring 101 is provided with a first triangular convex surface 7, the left end of the first metal steel belt 301 is provided with a first triangular notch 8, the right end of the second metal steel belt 303 is provided with a second triangular convex surface 9, the left end of the metal outer ring 4 is provided with a second triangular notch 10, and the assembly of the whole device is simple by utilizing the matching of the convex point 5, the foaming object 6, the first triangular convex surface 7 and the second triangular convex surface 9, and the assembly laminating degree is higher, is difficult for taking place the deformation in the device use, and influences the gasket and normally use, and the surface spraying of metal outer loop 4 has oxygen barrier 11.

And those not described in detail in this specification are well within the skill of those in the art.

When the metal inner ring is used, the metal inner ring 101 is firstly plugged into the fiber layer 103 and the tetrafluoro coating skin 104, then the foam 6 is filled in the metal inner ring, then the first metal steel strip 301 is wound in alignment with the first triangular convex surface 7, then the first metal steel strip 301 is wound with the soft seal 302, after the process is repeated for three times, the soft seal 302 is wound with the second metal steel strip 303, then the metal outer ring 4 is wound with the second metal steel strip 303, and the oxygen isolation layer 11 is sprayed on the periphery of the metal outer ring 4.

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. A gasket with corrosion-proof composite type comprises an inner ring (1), and is characterized in that: inner ring (1) includes metal inner ring (101), the fixed surface of metal inner ring (101) is connected with tooth-shaped district (102), the surface cover of metal inner ring (101) is equipped with fibrous layer (103), the outside fixedly connected with tetrafluoro cladding skin (104) of fibrous layer (103), the right side of tetrafluoro cladding skin (104) and metal inner ring (101) is through first adhesion layer (2) fixedly connected with winding district (3), winding district (3) include with metal inner ring (101) fixed connection's first metal steel strip (301), the soft sealed (302) of right side fixedly connected with of first metal steel strip (301), the right side fixedly connected with second metal steel strip (303) of soft sealed (302), the right side of second metal steel strip (303) is through second adhesion layer (12) fixedly connected with metal outer loop (4).

2. The gasket having a corrosion-proof composite type according to claim 1, wherein: the inner wall of the fiber layer (103) is fixedly connected with salient points (5) which are clamped with the tooth-shaped area (102).

3. The gasket having a corrosion-proof composite type according to claim 1, wherein: and a foaming material (6) is filled between the left wall of the fiber layer (103) and the left side of the metal inner ring (101).

4. The gasket having a corrosion-proof composite type according to claim 1, wherein: first triangle convex surface (7) have been seted up to the right-hand member of metal inner ring (101), first triangle notch (8) with first triangle convex surface (7) looks adaptation are seted up to the left end of first metal steel band (301).

5. The gasket having a corrosion-proof composite type according to claim 1, wherein: and a second triangular convex surface (9) is formed at the right end of the second metal steel belt (303), and a second triangular notch (10) is formed at the left end of the metal outer ring (4).

6. The gasket having a corrosion-proof composite type according to claim 1, wherein: and an oxygen-isolating layer (11) is sprayed on the surface of the metal outer ring (4).