High-pressure-resistant and high-temperature-resistant reinforced composite sealing gasket
By setting ribs and a rubber membrane on the metal ring substrate in the middle layer of the sealing gasket, the sealing structure is improved to a multi-line seal, which solves the problem of poor sealing performance and achieves high-efficiency sealing and corrosion resistance under high pressure and high temperature environment.
Patent Information
- Application Number
- CN202520127955.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-01-20
AI Technical Summary
The surface sealing structure of existing gaskets results in poor sealing performance and cannot effectively cope with high pressure and high temperature environments.
The middle layer metal ring substrate has an outer ring rib and an inner wavy ring rib. The upper and lower rubber films are attached to the upper and lower surfaces to form a multi-line sealing structure, which enhances the sealing performance and protects the metal substrate through the rubber film.
It significantly increases sealing stress, improves sealing performance, and prevents metal gasket deformation and corrosion under high pressure and high temperature environments.
Smart Images
Figure CN223686123U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of sealing gasket, specifically relates to a high pressure and high temperature resistant reinforced composite sealing gasket. BACKGROUND
[0002] Metal gasket is a kind of sealing spare parts in gear box, engine, retarder, high-end gearbox, axle, compressor, diesel engine, internal combustion engine and other fields for years, sealing gasket is made of metal or non-metal plate material by cutting, stamping or cutting process, and is used for the sealing connection between machine parts of machine equipment.The sealing gasket of a kind of shell currently used is overall plane structure, and sealing contact is face sealing, and the structure reduces sealing stress, and sealing performance is not good.Therefore, it is necessary to improve. UTILITY MODEL CONTENT
[0003] The utility model solves the technical problem: provide a kind of high pressure and high temperature resistant reinforced composite sealing gasket, the utility model purposes to improve the structure of sealing gasket, change multiple line sealing from face sealing, greatly improve the sealing stress of sealing gasket, improve sealing performance.
[0004] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:
[0005] A kind of high pressure and high temperature resistant reinforced composite sealing gasket, including sealing gasket annular body, the sealing gasket annular body includes middle layer metal annular base plate, a plurality of round holes are evenly arranged on the middle layer metal annular base plate, the outer side edge of the middle layer metal annular base plate is equipped with annular convex rib, and the inner side edge of the middle layer metal annular base plate is equipped with wave-shaped annular convex rib;The upper surface of the middle layer metal annular base plate is pasted with the upper layer rubber film compatible with its shape, and the lower surface of the middle layer metal annular base plate is pasted with the lower layer rubber film compatible with its shape.
[0006] Further limit to the above scheme, the wave-shaped annular convex rib is the wave-shaped cross-section structure formed by the interval arrangement of multiple upper convex ribs and multiple lower convex ribs, and the inner side edge of the wave-shaped annular convex rib is flat edge.
[0007] Further limit to the above scheme, the middle layer metal annular base plate is made of cold-rolled carbon steel plate / band or stainless steel plate, and the thickness of the middle layer metal annular base plate is 0.15-0.30 mm.
[0008] Further limit to the above scheme, the upper layer rubber film and the lower layer rubber film are made of nitrile rubber or fluorine rubber material;The thickness of the upper layer rubber film and the lower layer rubber film is 0.025-0.065 mm.
[0009] Further, the upper rubber film and the lower rubber film are connected by an adhesive layer made of a coupling composite material of metal and rubber.
[0010] Further, the working temperature of the high-pressure and high-temperature resistant reinforced composite sealing gasket is -40℃ to 140℃ or -40℃ to 300℃.
[0011] Compared with the prior art, the utility model has the advantages of:
[0012] 1. The circular ring-shaped ribs are arranged on the outer side edge of the middle layer metal circular ring base plate, and the wave-shaped circular ring ribs are arranged on the inner side edge of the middle layer metal circular ring base plate, so that the sealing is changed from surface sealing to multiple line sealing, the sealing stress of the sealing gasket is greatly improved, and the sealing performance is improved.
[0013] 2. The utility model is a novel environment-friendly high-performance composite sealing element, the upper rubber film and the lower rubber film are arranged on the upper surface and the lower surface of the middle layer metal circular ring base plate respectively by improving the structure of the shell gasket, the middle layer metal circular ring base plate can be protected, the deformation of the metal gasket when being extruded can be effectively prevented, and the corrosion resistance is improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a structural schematic view of the utility model;
[0015] Figure 2 It is an A-A sectional view in the utility model; Figure 1 DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0017] It should be noted that in this paper, the term "including", "containing" or any other variant thereof is intended to cover non-exclusive containing, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the sentence "including a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.
[0018] Please refer toFigures 1-2 The utility model discloses an embodiment in detail.
[0019] Embodiment: a kind of high pressure and high temperature resistant reinforced composite sealing gasket, refer to Figure 1 As shown in the figure, including sealing gasket ring body 1, the sealing gasket ring body 1 includes middle layer metal ring base plate 2, the middle layer metal ring base plate 2 is evenly distributed with multiple round holes 3 on circumference, the outer side edge of the middle layer metal ring base plate 2 is equipped with annular rib 4, and the inner side edge of the middle layer metal ring base plate 2 is equipped with wave-shaped annular rib 5.
[0020] In the embodiment, the sealing is changed from surface sealing to multiple line sealing by equipping the outer side edge of the middle layer metal ring base plate with annular rib and the inner side edge of the middle layer metal ring base plate with wave-shaped annular rib, which can greatly improve the sealing stress of the sealing gasket and improve the sealing performance.
[0021] In a specific embodiment: the upper surface of the middle layer metal ring base plate 2 is pasted with upper layer rubber film 6 matched with its shape, and the lower surface of the middle layer metal ring base plate 2 is pasted with lower layer rubber film 7 matched with its shape.
[0022] In the embodiment, the upper surface and the lower surface of the middle layer metal ring base plate are respectively equipped with upper layer rubber film and lower layer rubber film, which can protect the middle layer metal ring base plate, effectively prevent the deformation of the metal gasket when being extruded, and improve the corrosion resistance.
[0023] In a specific embodiment: the wave-shaped annular rib 5 is a wave-shaped cross-sectional structure formed by a plurality of annular upper ribs 5-1 and a plurality of annular lower ribs 5-2 arranged at intervals, and the inner side edge of the wave-shaped annular rib 5 is a flat edge 5-3.
[0024] The wave-shaped annular rib can form multiple annular line seals and produce good sealing performance.
[0025] Preferably, the middle layer metal ring base plate 2 is made of cold-rolled carbon steel plate / band or stainless steel plate, and the thickness of the middle layer metal ring base plate 2 is 0.15-0.30 mm.
[0026] Preferably, the upper layer rubber film 6 and the lower layer rubber film 7 are made of butyronitrile rubber or fluorine rubber material, and the thickness of the upper layer rubber film 6 and the lower layer rubber film 7 is 0.025-0.065 mm.
[0027] Preferably, the upper layer rubber film 6 and the lower layer rubber film 7 are connected together by a bonding layer made of coupling composite material of metal and rubber.
[0028] The working temperature of the high-pressure and high-temperature resistant reinforced composite sealing gasket is -40℃-140℃ / -40℃-300℃.
[0029] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be regarded as limiting the claims to which they relate.
[0030] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.
Claims
1. A high pressure high temperature resistant reinforced composite gasket, characterized by: The sealing gasket ring body (1) comprises a middle layer metal ring base plate (2) with a plurality of circular holes (3) arranged on the circumference, a ring-shaped convex rib (4) arranged on the outer edge of the middle layer metal ring base plate (2), and a wave-shaped ring convex rib (5) arranged on the inner edge of the middle layer metal ring base plate (2); an upper layer rubber film (6) is attached to the upper surface of the middle layer metal ring base plate (2), and a lower layer rubber film (7) is attached to the lower surface of the middle layer metal ring base plate (2).
2. A high pressure and high temperature resistant reinforced composite gasket according to claim 1, wherein: The wave-shaped ring convex rib (5) is a wave-shaped cross-section structure formed by a plurality of upper convex ribs (5-1) and a plurality of lower convex ribs (5-2) arranged at intervals, and the inner edge of the wave-shaped ring convex rib (5) is a flat edge (5-3).
3. The high pressure and high temperature resistant reinforced composite gasket of claim 1, wherein: The middle layer metal ring base plate (2) is made of cold-rolled carbon steel plate / band or stainless steel plate, and the thickness of the middle layer metal ring base plate (2) is 0.15-0.30 mm.
4. The high pressure and high temperature resistant reinforced composite gasket of claim 1, wherein: The upper layer rubber film (6) and the lower layer rubber film (7) are made of nitrile rubber or fluororubber material, and the thickness of the upper layer rubber film (6) and the lower layer rubber film (7) is 0.025-0.065 mm.
5. The high pressure and high temperature resistant reinforced composite gasket of claim 1, wherein: The upper layer rubber film (6) and the lower layer rubber film (7) are connected together by a bonding layer made of a coupling composite material of metal and rubber.
6. A high pressure and high temperature resistant reinforced composite gasket according to claim 1, wherein: The working temperature of the high-pressure and high-temperature resistant reinforced composite sealing gasket is -40℃-140℃ / -40℃-300℃.