Enhanced asbestos-free sealing gasket

Abstract

The utility model relates to the technical field of gaskets, and discloses an enhanced asbestos-free sealing gasket which comprises an upper gasket and a lower gasket, the upper gasket is located above the lower gasket, a butt joint piece is arranged between the upper gasket and the lower gasket, and the upper gasket and the lower gasket each comprise a first connecting plate and a second connecting plate which make contact with each other. Accommodating cavities are formed in the sides, close to each other, of the first connecting plate and the second connecting plate, a metal plate located in the accommodating cavities is arranged between the first connecting plate and the second connecting plate, protruding plates are fixedly connected to the top end and the bottom end of the metal plate at equal intervals, and clamping grooves connected to the outsides of the protruding plates in a sleeving mode are formed in the ends, away from each other, of the two accommodating cavities; a first sealing layer is arranged on the side, away from the second connecting plate, of the first connecting plate. The metal plate is arranged between the first connecting plate and the second connecting plate, the strength of the upper gasket and the strength of the lower gasket are effectively enhanced, and meanwhile the toughness and the rebound resilience of the upper gasket and the lower gasket are improved through mutual contact of the first connecting plate and the second connecting plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to gasket technical field especially relates to a reinforced asbestos-free sealing gasket. BACKGROUND

[0002] The sealing gasket is a kind of sealing spare part for machinery, equipment, pipeline, is used in the place where fluid is used, inside and outside, the material of sealing effect.The sealing gasket is made of metal or non-metal plate material, is cut, is stamped or is cut and is made, is used in the sealing connection between pipeline, the sealing connection between the machine parts of machine equipment.With the progress of technology, sealing element is widely applied, and the requirement to sealing element is higher and higher, and many countries have regarded asbestos as prohibited material, so asbestos-free rubber plate gradually replaces asbestos rubber plate, and the gasket made of asbestos-free plate has been widely applied in various industries, however, the asbestos-free gasket of reinforced type only adds a small amount of metal wire in the process of plate forming to enhance the strength of gasket, but the addition of metal wire has the problem of not obvious reinforcing effect on gasket strength. CONTENT OF UTILITY MODEL

[0003] To solve the technical problem that the asbestos-free gasket of reinforced type only adds a small amount of metal wire in the process of plate forming to enhance the strength of gasket, but the addition of metal wire has the problem of not obvious reinforcing effect on gasket strength, the utility model provides a reinforced asbestos-free sealing gasket.

[0004] The utility model discloses the following technical scheme is realized: a reinforced asbestos-free sealing gasket, including upper gasket and lower gasket, upper gasket is located above lower gasket, and the butt joint is established between upper gasket and lower gasket, and upper gasket and lower gasket all include the connecting plate one and connecting plate two of mutual contact, and the connecting plate one and connecting plate two are all seted up with the accommodating cavity of one side close to each other, and the metal plate in the accommodating cavity between connecting plate one and connecting plate two is located, and the top end and bottom end of metal plate are all equidistance fixedly connected with the convex plate, and the two accommodating cavities are all seted up with the clamping groove of the sleeve of one end away from the convex plate outside, and the side of connecting plate one away from connecting plate two is equipped with sealing layer one, and the stabilizing piece between sealing layer one and connecting plate one, the outer wall of connecting plate one, connecting plate two and sealing layer one is connected with sealing layer two, and the inner wall of connecting plate one, connecting plate two and sealing layer one is connected with sealing layer three.

[0005] As the further improvement of the above scheme, the stabilizing piece includes the stabilizing groove of being set up in the side close to each other of connecting plate one and sealing layer one, and the stabilizing groove is annular structure, and the inside of stabilizing groove is embedded with metal ring.

[0006] As a further improvement of the above-mentioned scheme, the abutment piece comprises an abutment plate one fixed to the connecting plate two away from the connecting plate one, the abutment plate one is provided with an abutment plate two away from the connecting plate two, the abutment plate two is installed on the connecting plate two in the lower gasket and away from the connecting plate one, the abutment plate one is fixed to the limiting block at a distance away from the abutment plate two, and the abutment plate two is provided with a limiting groove outside the limiting block.

[0007] As a further improvement of the above-mentioned scheme, the inner diameter of the metal plate is larger than the inner diameter of the connecting plate one and the connecting plate two, and the outer diameter of the metal plate is smaller than the outer diameter of the connecting plate one and the connecting plate two.

[0008] As a further improvement of the above-mentioned scheme, the sealing layer one is composed of a non-asbestos fiber plate layer and a silicone rubber layer, the non-asbestos fiber plate layer is located on one side of the silicone rubber layer, and the non-asbestos fiber plate layer is arranged close to the connecting plate one.

[0009] As a further improvement of the above-mentioned scheme, the connecting plate one, the connecting plate two, the abutment plate one, the abutment plate two and the non-asbestos fiber plate layer are all made of non-asbestos fiber plate material, and the silicone rubber layer and the sealing layer two are all made of silicone rubber material.

[0010] Compared with the prior art, the utility model has the advantages of:

[0011] The utility model discloses a metal plate is arranged between the connecting plate one and the connecting plate two, effectively strengthens the strength of upper gasket and lower gasket, simultaneously through the mutual contact of connecting plate one and connecting plate two, thereby increased the toughness and resilience of upper gasket and lower gasket, through the design of metal ring and stable slot, can realize the close butt joint of sealing layer one and connecting plate one, improved the connection close of sealing layer one and connecting plate one, through the clamping of limiting block and limiting groove, effectively realize the close adhesion of abutment plate one and abutment plate two, and improve the connection stability of upper gasket and lower gasket. ACCURACY OF DRAWINGS

[0012] Figure 1 The utility model provides a whole structure schematic diagram of reinforced non-asbestos sealing gasket;

[0013] Figure 2 The utility model discloses a reinforced non-asbestos sealing gasket; Figure 1 The utility model discloses a reinforced non-asbestos sealing gasket;

[0014] Figure 3 The utility model discloses a reinforced non-asbestos sealing gasket;

[0015] Figure 4 The utility model discloses a reinforced non-asbestos sealing gasket;

[0016] Figure 5 The utility model discloses a reinforced non-asbestos sealing gasket;

[0017] Figure 6 The utility model discloses a reinforced non-asbestos sealing gasket;Figure 5 A bottom view.

[0018] Explanation of key symbols:

[0019] 1. Connecting plate one; 2. Connecting plate two; 3. Metal plate; 4. Protruding plate; 5. Receiving cavity; 6. Slot; 7. Sealing layer one; 8. Butt plate one; 9. Sealing layer two; 10. Butt plate two; 11. Limiting block; 12. Limiting groove; 13. Sealing layer three; 14. Metal ring; 15. Stabilizing groove; 16. Upper gasket; 17. Lower gasket. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0021] Please combine Figures 1 to 6 This embodiment of an enhanced asbestos-free sealing gasket includes an upper gasket 16 and a lower gasket 17. The upper gasket 16 is located above the lower gasket 17. A mating part is provided between the upper gasket 16 and the lower gasket 17. Both the upper gasket 16 and the lower gasket 17 include a connecting plate 1 and a connecting plate 2 that are in contact with each other. A receiving cavity 5 is formed on the side of the connecting plate 1 and the connecting plate 2 that are close to each other. A metal plate 3 is provided between the connecting plate 1 and the connecting plate 2 and located inside the receiving cavity 5. A protruding plate 4 is fixedly connected to the top and bottom of the metal plate 3 at equal distances. A sleeve is formed at the side of the two receiving cavities 5 that are far apart from each other and fits onto the protruding plate 4. The outer slot 6 has a sealing layer 7 on the side of the connecting plate 1 away from the connecting plate 2. A stabilizing element is provided between the sealing layer 7 and the connecting plate 1. The outer walls of the connecting plate 1, the connecting plate 2, and the sealing layer 7 are connected by a sealing layer 9. The inner walls of the connecting plate 1, the connecting plate 2, and the sealing layer 7 are connected by a sealing layer 13. By setting a metal plate 3 between the connecting plate 1 and the connecting plate 2, the strength of the upper gasket 16 and the lower gasket 17 is effectively improved. At the same time, the mutual contact between the connecting plate 1 and the connecting plate 2 enhances the toughness and resilience of the upper gasket 16 and the lower gasket 17.

[0022] The stabilizing component includes a stabilizing groove 15 formed on the side close to the connecting plate 1 and the sealing layer 7. The stabilizing groove 15 is a ring structure, and a metal ring 14 is embedded inside the stabilizing groove 15. Through the design of the metal ring 14 and the stabilizing groove 15, the sealing layer 7 and the connecting plate 1 can be tightly connected, which improves the connection tightness between the sealing layer 7 and the connecting plate 1.

[0023] The mating components include a first mating plate 8 fixed to the second connecting plate 2 in the upper gasket 16 on the side away from the first connecting plate 1, a second mating plate 10 on the side of the first mating plate 8 away from the second connecting plate 2, and the second mating plate 10 installed in the lower gasket 17 on the side of the second connecting plate 2 away from the first connecting plate 1. Limiting blocks 11 are fixed at equal intervals on the side of the first mating plate 8 close to the second mating plate 10. Limiting grooves 12 are opened at equal intervals on the second mating plate 10, which are sleeved on the outside of the limiting blocks 11. Through the snap-fit ​​of the limiting blocks 11 and the limiting grooves 12, the first mating plate 8 and the second mating plate 10 are effectively fitted together, and the connection stability of the upper gasket 16 and the lower gasket 17 is improved.

[0024] The inner diameter of metal plate 3 is larger than the inner diameters of connecting plate 1 and connecting plate 2, and the outer diameter of metal plate 3 is smaller than the outer diameters of connecting plate 1 and connecting plate 2.

[0025] Sealing layer 7 consists of an asbestos-free fiberboard layer and a silicone rubber layer. The asbestos-free fiberboard layer is located on one side of the silicone rubber layer and is positioned close to connecting plate 1. Connecting plate 1, connecting plate 2, mating plate 8, mating plate 10, and the asbestos-free fiberboard layer are all made of asbestos-free fiberboard material, which has good toughness. The silicone rubber layer and sealing layer 9 are both made of silicone rubber material, giving the gasket good elasticity. Sealing layer 13 is made of ethylene propylene diene monomer (EPDM) rubber, which can improve the gasket's resistance to chemical corrosion. This utility model improves the use of screen-printed silicone rubber in both sealing layer 9 and sealing layer 7. By employing screen printing technology, the screen-printed silicone rubber, which is resistant to oil, high temperature, low temperature, ozone, weathering, and has high resilience, is used as a sealing coating. This not only ensures the reliability of the seal but also improves production efficiency. At the same time, the screen-printed silicone rubber coating replaces the traditional metal protective ring, effectively reducing costs. Furthermore, the main material of sealing layer 13 is ethylene propylene diene monomer (EPDM) rubber, which can improve the chemical corrosion resistance of the upper gasket 16 and the lower gasket 17.

[0026] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A reinforced asbestos-free sealing gasket, characterized in that, The device includes an upper gasket and a lower gasket, with the upper gasket located above the lower gasket. A mating part is provided between the upper and lower gaskets. Both the upper and lower gaskets include a connecting plate 1 and a connecting plate 2 that are in contact with each other. A receiving cavity is provided on the side of the connecting plate 1 and the connecting plate 2 that are close to each other. A metal plate is provided between the connecting plate 1 and the connecting plate 2 and located inside the receiving cavity. A protruding plate is fixed at equal distances at the top and bottom ends of the metal plate. A slot is provided at the end of the two receiving cavities that are far away from each other and fits onto the outside of the protruding plate. A sealing layer 1 is provided on the side of the connecting plate 1 that is far away from the connecting plate 2. A stabilizing part is provided between the sealing layer 1 and the connecting plate 1. The outer wall of the connecting plate 1, the connecting plate 2 and the sealing layer 1 is connected to the sealing layer 2. The inner wall of the connecting plate 1, the connecting plate 2 and the sealing layer 1 is connected to the sealing layer 3.

2. The reinforced asbestos-free sealing gasket as described in claim 1, characterized in that, The stabilizing component includes stabilizing grooves formed on one side of the connecting plate and the sealing layer, all of which are annular structures and have metal rings embedded inside.

3. The reinforced asbestos-free sealing gasket as described in claim 1, characterized in that, The docking component includes a first docking plate fixed to the second connecting plate in the upper gasket and a second docking plate on the side away from the first connecting plate. The second docking plate is provided on the side of the first docking plate away from the second connecting plate. The second docking plate is installed in the second connecting plate in the lower gasket and is on the side away from the first connecting plate. Limiting blocks are fixed at equal intervals on the side of the first docking plate close to the second docking plate. Limiting grooves that fit around the limiting blocks are opened at equal intervals on the second docking plate.

4. The reinforced asbestos-free sealing gasket as described in claim 1, characterized in that, The inner diameter of the metal plate is larger than the inner diameters of connecting plate one and connecting plate two, and the outer diameter of the metal plate is smaller than the outer diameters of connecting plate one and connecting plate two.

5. The reinforced asbestos-free sealing gasket as described in claim 1, characterized in that, The sealing layer consists of an asbestos-free fiberboard layer and a silicone rubber layer. The asbestos-free fiberboard layer is located on one side of the silicone rubber layer and is positioned close to the connecting plate.

6. The reinforced asbestos-free sealing gasket as described in claim 5, characterized in that, The connecting plate one, connecting plate two, butt plate one, butt plate two, and asbestos-free fiberboard layer are all made of asbestos-free fiberboard material, and the silicone rubber layer and sealing layer two are both made of silicone rubber material.

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