Metal coated gasket
Through the combined structure of the inner and outer cover sleeves and metal rings, the problem of metal-clad gaskets being easily broken and corroded is solved, and high-strength and elastic sealing effects are achieved in corrosive environments.
Patent Information
- Application Number
- CN202421844825.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The existing metal-clad gaskets are prone to breaking and corroding during use, and lack elasticity.
It adopts a combined structure of inner cover, outer cover and metal ring. The inner cover and metal ring are made of corrosion-resistant materials and are opposite to the side wall at the interface through a metal belt. The inner cover is elastic and the metal ring provides strength.
Maintain high strength and not easy to corrode in a corrosive environment, has certain elasticity, extends service life and improves sealing performance.
Smart Images
Figure CN223165002U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metal gaskets, in particular to a metal-clad gasket. Background Art
[0002] A metal-clad gasket refers to a composite gasket with a non-metallic material (flexible graphite, asbestos rubber sheet, ceramic fiber, etc.) inside and a metal thin plate covered by a specific cold working process outside. It is usually divided into two types: flat type covering and corrugated type covering according to the gasket cross-section. It is the most traditional type of sealing gasket and is suitable for heat exchangers, pressure vessels, pumps, valves and flange surface seals.
[0003] However, many existing metal-clad gaskets are used for sealing pipeline interfaces. A metal-clad gasket is placed between two flanges and squeezed against each other to achieve the purpose of interface sealing. However, the existing metal-clad gaskets only have high strength, do not have elasticity, are easy to break, and during the process of liquid medium flowing, they are easy to corrode the gasket. Summary of the Utility Model
[0004] In order to make the metal-clad gasket have high strength, elasticity and not be corroded during use, the utility model provides a metal-clad gasket.
[0005] The utility model provides a metal-clad gasket, which comprises a gasket main body, a protection component, a plurality of clamping parts and a plurality of metal rings;
[0006] The protection component comprises an inner sleeve and an outer sleeve. The inner sleeve is sleeved on the inner edge of the gasket main body, and the outer sleeve is sleeved on the outer edge of the gasket main body; the clamping parts are used to fixedly install the inner sleeve and the outer sleeve on the gasket main body;
[0007] A plurality of the metal rings are respectively arranged on the top wall and the bottom wall of the metal ring. The inner and outer side walls of the metal ring are respectively abutted against the inner sleeve and the outer sleeve, and a plurality of metal strips are arranged on the side wall of the metal ring far away from the gasket main body.
[0008] By adopting the above technical solution, when installing the gasket body, place the metal-clad gasket at the pipe interface. Both the inner sleeve and the outer sleeve are in contact with the side wall of the interface. The metal ring is in contact with the side wall of the interface through the metal strip. The metal ring and the metal strip are made of metals with good corrosion resistance such as stainless steel, copper, and aluminum as the base materials, and can be used for a long time in a corrosive environment. Moreover, the metal ring and the metal strip can withstand high pressure, enabling the metal-clad gasket to have the function of high strength. During the circulation of the liquid medium, it is difficult for the flowing liquid medium to corrode the gasket body under the barrier of the inner sleeve. The side walls on both sides of the metal ring are in contact with the inner sleeve and the outer sleeve respectively. It is difficult for the liquid medium at the pipe interface to corrode the gasket body under the barrier of the outer sleeve and the metal ring. And both the inner sleeve and the outer sleeve are elastic, making the metal-clad gasket elastic and not prone to corrosion during use.
[0009] Optionally, a plurality of first convex rings and a plurality of first annular grooves are provided on the side of the inner sleeve and the outer sleeve close to the metal ring. A plurality of second convex rings and a plurality of second annular grooves are provided on both the inner and outer sides of the metal ring. The first convex rings are clamped in the second annular grooves, and the second convex rings are clamped in the first annular grooves.
[0010] Optionally, the thicknesses of both the inner sleeve and the outer sleeve are greater than the thickness of the metal ring.
[0011] Optionally, the clamping member includes a plurality of connecting blocks and a plurality of convex blocks. The connecting blocks are arranged on the gasket body, the convex blocks are arranged on the connecting blocks, and clamping grooves are provided on both the inner sleeve and the outer sleeve.
[0012] Optionally, a plurality of guiding surfaces are formed between the end face of the convex block away from the connecting block and its two side faces.
[0013] Optionally, the gasket body includes a compressive layer, an elastic layer, and a metal layer. The elastic layer is coated on the outside of the compressive layer, and the metal layer is coated on the outside of the elastic layer.
[0014] Optionally, an oil-repellent layer is fixedly provided on the outer wall of the metal layer.
[0015] In summary, the present utility model includes at least one of the following beneficial technical effects:
[0016] 1. Place the metal-clad gasket at the pipe interface. Both the inner sleeve and the outer sleeve are in contact with the side wall of the interface. The metal ring is in contact with the side wall of the interface through the metal strip. The metal ring and the metal strip are made of metals with good corrosion resistance such as stainless steel, copper, and aluminum as the base materials, and can be used for a long time in a corrosive environment. Moreover, the metal ring and the metal strip can withstand high pressure, enabling the metal-clad gasket to have the function of high strength.
[0017] 2. During the process of the liquid medium flowing, it is difficult for the flowing liquid medium to corrode the gasket body under the barrier of the inner jacket. The side walls on both the inner and outer sides of the metal ring are respectively abutted against the inner jacket and the outer jacket. The liquid medium at the pipe interface is difficult to corrode the gasket body under the barriers of the outer jacket and the metal ring. Moreover, both the inner jacket and the outer jacket are elastic, making the metal-clad gasket elastic and not prone to corrosion during use. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a schematic diagram of the overall structure;
[0019] Figure 2 is a sectional view of the overall structure;
[0020] Figure 3 is Figure 2 the enlarged view of part A in
[0021] DESCRIPTION OF THE REFERENCE NUMERALS: 10, gasket body; 11, compressive layer; 12, elastic layer; 13, metal layer; 14, oil-repellent layer; 20, protective component; 21, inner jacket; 22, outer jacket; 23, first convex ring; 24, first annular groove; 25, clamping groove; 30, clamping part; 31, connecting block; 32, convex block; 321, guiding surface; 40, metal ring; 41, metal strip; 42, second convex ring; 43, second annular groove. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] The following Figures 1 - 3 is a further detailed description of the present utility model.
[0023] This embodiment discloses a metal-clad gasket: Referring to Figures 1 - 3 , a metal-clad gasket includes a gasket body 10, a protective component 20, a plurality of clamping parts 30 and a plurality of metal rings 40;
[0024] The protective component 20 includes an inner jacket 21 and an outer jacket 22. The inner jacket 21 is sleeved on the inner edge of the gasket body 10, and the outer jacket 22 is sleeved on the outer edge of the gasket body 10; The clamping parts 30 are used to fixedly install the inner jacket 21 and the outer jacket 22 on the gasket body 10;
[0025] A plurality of the metal rings 40 are respectively arranged on the top wall and the bottom wall of the metal ring 40. The inner and outer side walls of the metal ring 40 are respectively abutted against the inner sleeve 21 and the outer sleeve 22. A plurality of metal strips 41 are arranged on the side wall of the metal ring 40 away from the gasket body 10. The metal-clad gasket is placed at the pipe interface. Both the inner sleeve 21 and the outer sleeve 22 are abutted against the side wall of the interface. The metal ring 40 is abutted against the side wall of the interface through the metal strip 41. The metal ring 40 and the metal strip 41 are made of metals with good corrosion resistance such as stainless steel, copper, and aluminum as the base materials, and can be used for a long time in a corrosive environment. Moreover, the metal ring 40 and the metal strip 41 can withstand a relatively high pressure, enabling the metal-clad gasket to have the function of high strength. During the process of liquid medium flowing, it is difficult for the flowing liquid medium to corrode the gasket body 10 under the barrier of the inner sleeve 21. The inner and outer side walls of the metal ring 40 are respectively abutted against the inner sleeve 21 and the outer sleeve 22. The liquid medium at the pipe interface is difficult to corrode the gasket body 10 under the barriers of the outer sleeve 22 and the metal ring 40. And both the inner sleeve 21 and the outer sleeve 22 are elastic, making the metal-clad gasket elastic and not prone to corrosion during use.
[0026] Refer to Figures 2 - 3 , the clamping member 30 includes a plurality of connecting blocks 31 and a plurality of convex blocks 32. The connecting blocks 31 are arranged on the gasket body 10, and the convex blocks 32 are arranged on the connecting blocks 31. Claw slots 25 are arranged on both the inner sleeve 21 and the outer sleeve 22.
[0027] When installing the inner sleeve 21 and the outer sleeve 22, the inner sleeve 21 and the outer sleeve 22 are wrapped around the inner and outer sides of the gasket body 10. Press the inner sleeve 21 and the outer sleeve 22 towards the direction close to the gasket body 10, so that the connecting blocks 31 and the convex blocks 32 enter the claw slots 25. The inner sleeve 21 and the outer sleeve 22 clamp the connecting blocks 31 and the convex blocks 32 under the action of their own elastic forces. The cross-sectional area of the convex blocks 32 is larger than that of the connecting blocks 31, so that the convex blocks 32 are clamped in the claw slots 25. The plurality of connecting blocks 31 and the plurality of convex blocks 32 enable the inner sleeve 21 and the outer sleeve 22 to be fixedly installed on the gasket body 10, and the disassembly and assembly are convenient.
[0028] Refer to Figures 2 - 3 , two guiding surfaces 321 are formed between the end face of the convex block 32 away from the connecting block 31 and the two side surfaces.
[0029] The provision of the two guiding surfaces 321 enables the staff to align the card slots 25 with the bumps 32 when installing the inner sleeve 21 and the outer sleeve 22. Gently press the inner sleeve 21 and the outer sleeve 22, and the side walls of the card slots 25 abut against the two guiding surfaces 321, causing the side walls on both sides of the card slots 25 to move in a direction away from each other under force until the bumps 32 are inserted into the card slots 25. The inner sleeve 21 and the outer sleeve 22 clamp the connecting blocks 31 and the bumps 32 under the action of their own elastic forces, facilitating the installation operation of the staff.
[0030] Referring to Figure 3 , a plurality of first convex rings 23 and a plurality of first annular grooves 24 are provided on the side of the inner sleeve 21 and the outer sleeve 22 close to the metal ring 40. A plurality of second convex rings 42 and a plurality of second annular grooves 43 are provided on both the inner and outer sides of the metal ring 40. The first convex rings 23 are clamped in the second annular grooves 43, and the second convex rings 42 are clamped in the first annular grooves 24.
[0031] The first convex rings 23 are clamped in the second annular grooves 43, and the second convex rings 42 are clamped in the first annular grooves 24, enabling the metal ring 40 to be clamped between the inner sleeve 21 and the outer sleeve 22, forming a seal between the metal ring 40, the inner sleeve 21 and the outer sleeve 22, and fixing the edges of the inner sleeve 21 and the outer sleeve 22, reducing the probability of edge warping during use.
[0032] Referring to Figures 2 - 3 , the thicknesses of both the inner sleeve 21 and the outer sleeve 22 are greater than the thickness of the metal ring 40.
[0033] When installing the gasket body 10, place the metal-clad gasket at the pipe interface. The inner sleeve 21 and the outer sleeve 22 first abut against the side wall of the interface. The inner sleeve 21 and the outer sleeve 22 are elastically retracted under force, and then the metal ring 40 abuts against the side wall of the interface through the metal strip 41. The setting that the thicknesses of both the inner sleeve 21 and the outer sleeve 22 are greater than the thickness of the metal ring 40 can reduce the probability of the metal ring 40 contacting the liquid, further making it difficult to be corroded.
[0034] Referring to Figure 3 , the gasket body 10 includes a compressive layer 11, an elastic layer 12 and a metal layer 13. The elastic layer 12 is coated on the outside of the compressive layer 11, the metal layer 13 is coated on the outside of the elastic layer 12, and an oil-repellent layer 14 is fixedly provided on the outer wall of the metal layer 13.
[0035] The pressure-resistant layer 11 is in the middle part of the gasket and plays a supporting role; the main body of the elastic layer 12 is made of a flexible graphite plate, which overcomes the brittleness drawback and has good sealing performance. The elastic material makes the gasket elastic; the material of the metal layer 13 is an aluminum metal sheet, and the aluminum metal sheet coats the internal filling material, having a large solution strengthening effect, being heat-resistant and having long-lasting strength; the material of the oil-repellent layer 14 is PTFE, and a layer of the oil-repellent layer 14 is applied to the surface of the metal-coated gasket, so that the main body 10 of the gasket is corrosion-resistant during connection and can protect the metal surface of the gasket.
[0036] The above are all the preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention shall be covered within the protection scope of the present invention.
Claims
1. A metal-clad gasket, characterized in that: It includes a gasket body (10), a protection component (20), a plurality of clamping members (30) and a plurality of metal rings (40); The protection component (20) includes an inner sleeve (21) and an outer sleeve (22). The inner sleeve (21) is sleeved on the inner edge of the gasket body (10), and the outer sleeve (22) is sleeved on the outer edge of the gasket body (10); The clamping member (30) is used to fixedly install the inner sleeve (21) and the outer sleeve (22) on the gasket body (10); A plurality of the metal rings (40) are respectively arranged on the top wall and the bottom wall of the metal ring (40). The inner and outer side walls of the metal ring (40) are respectively abutted against the inner sleeve (21) and the outer sleeve (22). A plurality of metal strips (41) are arranged on the side wall of the metal ring (40) far away from the gasket body (10).
2. The metal-clad gasket according to claim 1, wherein: A plurality of first convex rings (23) and a plurality of first annular grooves (24) are arranged on the sides of the inner sleeve (21) and the outer sleeve (22) close to the metal ring (40). A plurality of second convex rings (42) and a plurality of second annular grooves (43) are arranged on the inner and outer sides of the metal ring (40). The first convex ring (23) is clamped in the second annular groove (43), and the second convex ring (42) is clamped in the first annular groove (24).
3. The metal-clad gasket according to claim 2, characterized in that: The thicknesses of the inner sleeve (21) and the outer sleeve (22) are both greater than the thickness of the metal ring (40).
4. A metal-clad gasket according to any one of claims 1 to 3, characterized in that: The clamping member (30) includes a plurality of connecting blocks (31) and a plurality of bumps (32). The connecting blocks (31) are arranged on the gasket body (10), the bumps (32) are arranged on the connecting blocks (31), and clamping grooves (25) are arranged on both the inner sleeve (21) and the outer sleeve (22).
5. The metal-clad gasket according to claim 4, wherein: A plurality of guiding surfaces (321) are formed between the end face and the two side faces of the bump (32) far away from the connecting block (31).
6. The metal-clad gasket according to claim 1, wherein: The gasket body (10) includes a compression layer (11), an elastic layer (12) and a metal layer (13). The elastic layer (12) is coated on the outside of the compression layer (11), and the metal layer (13) is coated on the outside of the elastic layer (12).
7. The metal-clad gasket according to claim 6, characterized in that: An oil-repellent layer (14) is fixedly arranged on the outer wall of the metal layer (13).