Anti-deformation long-service-life composite sealing washer

Abstract

The invention relates to the technical field of gaskets, and discloses an anti-deformation long-life composite sealing gasket which comprises a hard layer and a flexible layer, a fixing block is arranged on the hard layer, a fixing groove allowing the fixing block to be inserted is formed in the flexible layer, a fixing elastic piece is arranged on the fixing block, and the fixing elastic piece deforms in the direction away from the fixing block; when the fixing block is inserted into the fixing groove, the fixing elastic piece abuts against the groove wall of the fixing groove, the fixing block is inserted into the fixing groove, the fixing elastic piece abuts against the groove wall of the fixing groove, and due to the fact that the fixing elastic piece deforms in the direction away from the fixing block, the fixing elastic piece can limit the fixing block to be taken out of the fixing groove; therefore, the hard layer and the flexible layer are not easy to separate, and the service life of the sealing washer can be prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of gaskets, and in particular to an anti-deformation and long-life composite sealing gasket. Background Art

[0002] A sealing gasket is a mechanical sealing element used to form a sealing barrier between the contact surfaces of two or more connected parts. It prevents the leakage of liquid or gas by filling gaps and compensating for surface unevenness, and protects against the effects of external environmental factors (such as corrosion, vibration, and wear) on equipment. It is widely used in industry, automobiles, aerospace, construction and other fields.

[0003] In the related art, the sealing gasket includes a flexible layer and a hard layer, and the flexible layer and the hard layer are fixed by pressing.

[0004] During the use of the sealing gasket, the hard layer and the flexible layer may separate due to factors such as temperature and aging, causing the sealing gasket to deform, resulting in sealing failure of the sealing gasket and affecting the use of the sealing gasket. Summary of the invention

[0005] In order to improve the problem of easy separation of the hard layer and the flexible layer in the sealing gasket, the present application provides a deformation-resistant and long-life composite sealing gasket.

[0006] The present application provides an anti-deformation long-life composite sealing gasket, which adopts the following technical solution: A deformation-resistant and long-life composite sealing gasket comprises a hard layer and a flexible layer, wherein the hard layer is provided with a fixing block, the flexible layer is provided with a fixing groove for inserting the fixing block, the fixing block is provided with a fixing spring sheet, and the fixing spring sheet is deformed in a direction away from the fixing block; when the fixing block is inserted into the fixing groove, the fixing spring sheet abuts against the groove wall of the fixing groove.

[0007] By adopting the above technical solution, the fixing block is inserted into the fixing groove, and the fixing spring sheet abuts against the groove wall of the fixing groove. Since the fixing spring sheet is deformed in the direction away from the fixing block, the fixing spring sheet can limit the fixing block from being removed from the fixing groove, thereby making it difficult for the hard layer and the flexible layer to separate, so that the service life of the sealing gasket can be extended, and the possibility of deformation of the sealing gasket is reduced by fixing the hard layer on the flexible layer.

[0008] Optionally, a placement groove connected to the fixed groove is opened on the flexible layer, and a limit bar is provided in the placement groove. The limit bar includes a placement portion and a deformation portion. The placement portion is arranged on the deformation portion, and the placement portion is located in the insertion path of the fixed block; when the fixed block abuts the placement portion, the deformation portion is deformed toward the direction of the fixed block, and the deformation portion abuts the fixed block.

[0009] By adopting the above technical solution, when the fixed block is inserted into the fixed groove, the placement part is located in the insertion path of the fixed block, and the fixed block drives the placement part to move, so that the placement part moves in the placement groove. At this time, the placement part can drive the deformation part to move, so that the deformation part can be deformed in the direction of the fixed block until the deformation part abuts the fixed block. At this time, the deformation part can exert a force on the fixed block to limit the fixed block from detaching from the fixed groove, so that the connection between the fixed block and the flexible layer is more reliable, further reducing the possibility of the fixed block detaching from the fixed groove.

[0010] Optionally, a receiving groove for inserting the fixing spring piece is provided on the groove wall of the fixing groove; when the fixing block is inserted into the fixing groove, the fixing spring piece is inserted into the receiving groove.

[0011] By adopting the above technical solution, since the fixed spring sheet is deformed in the direction away from the fixed block, the fixed spring sheet is inserted into the accommodating groove, so that the fixed spring sheet and the flexible layer are fixed to each other. At this time, the fixed spring sheet is difficult to directly detach from the flexible layer, making the fixed spring sheet and the flexible layer more secure.

[0012] Optionally, a clamping block is provided on the deformable portion, and the clamping block is located between the deformable portion and the placement portion; when the fixing block is inserted into the fixing groove, the clamping block can be located between the fixing spring sheet and the fixing block.

[0013] By adopting the above technical solution, the card block is located between the deformation part and the placement part. When the fixed block is inserted into the fixed groove, the fixed block drives the placement part and the deformation part to move, so that the deformation part moves toward the fixed block, so that the card block is located between the fixed spring sheet and the fixed block, so that the card block is located on the disengagement path of the fixed spring sheet, so that the card block restricts the fixed spring sheet from disengaging from the fixed groove, thereby further increasing the connection strength between the hard layer and the flexible layer.

[0014] Optionally, an elastic block is provided on the groove wall of the placement groove; when the placement portion abuts against the elastic block, the limiting strip is pre-fixed on the flexible layer.

[0015] By adopting the above technical solution, the placement part abuts against the elastic block, making it difficult for the placement part to rotate in the placement groove until the fixed block drives the placement part to rotate, allowing the deformation part to abut against the fixed block; through the provision of the elastic block, it is convenient for the staff to install the placement part on the flexible layer, reducing the difficulty of installing the placement part.

[0016] Optionally, the flexible layer is provided with a through hole connected to the placement slot, a fixing bar is slidably connected in the through hole, and the fixing bar can extend out of the flexible layer; when the hard layer abuts the fixing bar, the fixing bar abuts the side of the card block away from the fixing spring sheet.

[0017] By adopting the above technical solution, the fixing bar extends out of the through hole. When the hard layer abuts against the fixing bar, the hard layer can drive the fixing bar to slide, so that the fixing bar abuts against the side of the block away from the fixing spring sheet, allowing the fixing bar to limit the movement of the fixing spring sheet, thereby further increasing the firmness between the fixing spring sheet and the flexible layer.

[0018] Optionally, a guide bar is provided on the hard layer, and a guide groove is provided on the flexible layer; when the guide bar is inserted into the guide groove, the fixing block is not in the fixing groove, and the fixing block is aligned with the fixing groove.

[0019] By adopting the above technical solution, when the guide bar is inserted into the guide groove, the fixed block is not in the fixed groove, so that the guide bar guides the insertion position of the fixed block, so that the fixed block can be inserted more accurately and the possibility of the fixed block not being aligned with the fixed groove is reduced.

[0020] Optionally, the hard layer is provided with a plurality of stop blocks, the flexible layer is provided with a plurality of stop strips, the plurality of stop strips are cross-arranged with each other, and the plurality of stop strips form a stop groove; when the stop block is inserted into the stop groove, the hard layer is fixed on the flexible layer.

[0021] By adopting the above technical solution, the stop strips are cross-arranged so that multiple stop strips form stop grooves. The stop blocks are inserted into different stop grooves to increase the contact area between the hard layer and the flexible layer, increase the connection strength between the hard layer and the flexible layer, and reduce the possibility of relative sliding between the hard layer and the flexible layer.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. The fixing block is inserted into the fixing groove, and the fixing spring sheet is abutted against the groove wall of the fixing groove. Since the fixing spring sheet is deformed in the direction away from the fixing block, the fixing spring sheet can limit the removal of the fixing block from the fixing groove, so that the hard layer and the flexible layer are not easily separated, so that the service life of the sealing gasket can be extended.

[0023] 2. When the fixed block is inserted into the fixed groove, the placement part is located in the insertion path of the fixed block, and the fixed block drives the placement part to move, so that the placement part moves in the placement groove. At this time, the placement part can drive the deformation part to move, so that the deformation part can be deformed in the direction of the fixed block until the deformation part abuts the fixed block. At this time, the deformation part can apply a force to the fixed block to limit the fixed block from detaching from the fixed groove, so that the connection between the fixed block and the flexible layer is more reliable, further reducing the possibility of the fixed block detaching from the fixed groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2is a partial cross-sectional view highlighting the fixing groove in an embodiment of the present application; Figure 3 is a schematic diagram of the structure highlighting the flexible layer in an embodiment of the present application; Figure 4 yes Figure 3 A magnified schematic diagram of part A; Figure 5 It is a schematic diagram of the structure highlighting the hard layer in the embodiment of the present application.

[0025] Figure numerals: 1, hard layer; 11, guide strip; 12, fixed block; 121, fixed spring piece; 122, connecting block; 13, accommodating groove; 131, stop block; 2, flexible layer; 21, guide groove; 22, fixed groove; 221, accommodating groove; 23, placement groove; 231, elastic block; 24, limiting strip; 241, placement part; 242, deformation part; 243, clamping block; 25, perforation; 251, fixed strip; 26, stop strip; 261, stop groove. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-5 This application is described in further detail.

[0027] This embodiment discloses a deformation-resistant and long-life composite sealing gasket. Figure 1 A deformation-resistant and long-life composite sealing gasket includes a hard layer 1 and a flexible layer 2. The hard layer 1 is made of stainless steel material and may also be made of other hard materials in other embodiments. The flexible layer 2 is made of fluororubber material and may also be made of other flexible materials in other embodiments.

[0028] Reference Figure 2 Two guide bars 11 are fixedly connected on the surface of the hard layer 1 facing the flexible layer 2, and the guide bars 11 extend along the circumference of the hard layer 1. Two guide grooves 21 are provided on the surface of the flexible layer 2 facing the hard layer 1, and the guide grooves 21 extend along the circumference of the flexible layer 2. The guide bars 11 can be inserted into the guide grooves 21 to achieve the installation of the hard layer 1 and the flexible layer 2.

[0029] Reference Figure 2 Four fixing blocks 12 are fixedly connected on the surface of the hard layer 1 facing the flexible layer 2 , and fixing springs 121 are fixedly connected on the side surfaces of the fixing blocks 12 on opposite sides, and the fixing springs 121 are bent in a direction away from the fixing blocks 12 .

[0030] Reference Figure 2 and Figure 3The surface of the flexible layer 2 facing the rigid layer 1 is provided with a fixing groove 22 for inserting the fixing block 12. There are four fixing grooves 22. The fixing block 12 is a cube. The width of the fixing groove 22 gradually decreases along the direction from the flexible layer 2 to the rigid layer 1. That is, when the fixing block 12 is inserted into the fixing groove 22, there is an interference fit between the fixing block 12 and the groove wall of the fixing groove 22. When the guide bar 11 is inserted into the guide groove 21, the fixing block 12 is aligned with the fixing groove 22. At this time, the fixing block 12 is not inserted into the fixing groove 22. Reference Figure 2 and Figure 4 The groove wall of the fixing groove 22 is provided with a receiving groove 221 for inserting the fixing spring piece 121, and the receiving groove 221 extends along the length direction of the fixing groove 22. When the fixing block 12 is inserted into the fixing groove 22, the fixing spring piece 121 can be deformed toward the receiving groove 221, and at this time, the fixing block 12 does not abut against the bottom wall of the fixing groove 22.

[0031] Reference Figure 2 and Figure 4 , eight placement grooves 23 are provided on the flexible layer 2, two placement grooves 23 are connected to one fixed groove 22, and the two placement grooves 23 are respectively arranged on different sides of the fixed groove 22. A limit strip 24 is placed on the flexible layer 2, and the limit strip 24 includes a placement portion 241 and a deformation portion 242, and the deformation portion 242 is deformed toward the placement portion 241. A clamping block 243 is integrally formed on the surface of the deformation portion 242, and the clamping block 243 is located between the deformation portion 242 and the placement portion 241, and the clamping block 243 is deformed toward the placement portion 241. The limit strip 24 can rotate in the placement groove 23, so that the clamping block 243 abuts against the fixed block 12.

[0032] Reference Figure 2 , Figure 4 and Figure 5 Two elastic blocks 231 are fixedly connected to the groove wall of the placement groove 23, and the elastic blocks 231 have elastic deformation capability. Two connecting blocks 122 are fixedly connected to the surface of the fixed block 12 away from the hard layer 1, and the connecting blocks 122 can be inserted into the placement groove 23. The limiting strip 24 is placed in the placement groove 23, and the placement portion 241 abuts against the side of the elastic block 231 away from the bottom wall of the placement groove 23. At this time, the placement portion 241 is located in the fixed groove 22, that is, the placement portion 241 is located in the insertion path of the connecting block 122.

[0033] Reference Figure 2 , Figure 4 and Figure 5When the fixing block 12 is inserted into the fixing groove 22, the connecting block 122 abuts against the placing portion 241, and the connecting block 122 drives the placing portion 241 to be completely inserted into the placing groove 23. The placing portion 241 drives the deforming portion 242 to move, so that the deforming portion 242 abuts against the side of the fixing block 12. At this time, the clamping block 243 abuts against the surface of the fixing spring sheet 121 away from the placing portion 241, that is, the clamping block 243 restricts the fixing spring sheet 121 from leaving the receiving groove 221.

[0034] Reference Figure 4 and Figure 5 The surface of the flexible layer 2 is provided with a through hole 25 connected to the receiving groove 221, and the through hole 25 is connected to the placement groove 23. A fixing bar 251 is slidably connected in the through hole 25, and the fixing bar 251 can be inserted into the receiving groove 221 and the placement groove 23. When the fixing block 12 is just inserted into the fixing groove 22, the hard layer 1 does not abut the fixing bar 251 until the connecting block 122 abuts the placement portion 241, and the hard layer 1 abuts the fixing bar 251. At this time, the fixing bar 251 moves toward the placement groove 23 and the receiving groove 221 until the fixing block 12 is completely inserted into the fixing groove 22. The fixing bar 251 is located on the side of the clamping block 243 away from the fixing spring sheet 121, so that the fixing bar 251 and the clamping block 243 can limit the fixing spring sheet 121 and prevent the fixing spring sheet 121 from leaving the receiving groove 221.

[0035] Reference Figure 5 Two receiving grooves 13 are provided on the surface of the hard layer 1, and the two receiving grooves 13 are arranged in an array along the circumference of the hard layer 1. A plurality of stop blocks 131 are fixedly connected to the bottom wall of the receiving groove 13, and none of the plurality of stop blocks 131 protrudes from the receiving groove 13.

[0036] Reference Figure 3 and Figure 5 A plurality of stop bars 26 are fixedly connected to the surface of the flexible layer 2. The plurality of stop bars 26 are formed into two groups, and each group of stop bars 26 is arranged perpendicular to each other. Each group of stop bars 26 crosses to form a stop groove 261, and the stop groove 261 is inserted into the stop block 131. When the hard layer 1 and the flexible layer 2 are assembled, the stop block 131 is inserted into the stop groove 261 to increase the contact area between the hard layer 1 and the flexible layer 2.

[0037] The implementation principle of the embodiment is as follows: the staff first places the limit strip 24 in the placement groove 23, allowing the placement portion 241 to abut against the elastic block 231, and then inserts the guide strip 11 into the guide groove 21 to achieve pre-positioning of the hard layer 1 and the flexible layer 2, and then puts the hard layer 1 and the flexible layer 2 into the machine for pressing to complete the assembly of the hard layer 1 and the flexible layer 2.

[0038] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0039] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present application should be included in the protection scope of the present application.

Claims

1. A deformation-resistant and long-life composite sealing gasket, comprising a hard layer (1) and a flexible layer (2), characterized in that: The hard layer (1) is provided with a fixing block (12), the flexible layer (2) is provided with a fixing groove (22) for inserting the fixing block (12), the fixing block (12) is provided with a fixing spring sheet (121), and the fixing spring sheet (121) is deformed in a direction away from the fixing block (12); when the fixing block (12) is inserted into the fixing groove (22), the fixing spring sheet (121) abuts against a groove wall of the fixing groove (22).

2. The anti-deformation long-life composite sealing gasket according to claim 1, characterized in that: The flexible layer (2) is provided with a placement groove (23) connected to the fixed groove (22); a limit strip (24) is provided in the placement groove (23); the limit strip (24) comprises a placement portion (241) and a deformation portion (242); the placement portion (241) is arranged on the deformation portion (242); the placement portion (241) is located in the insertion path of the fixed block (12); when the fixed block (12) abuts against the placement portion (241), the deformation portion (242) is deformed in the direction of the fixed block (12), and the deformation portion (242) abuts against the fixed block (12).

3. The anti-deformation long-life composite sealing gasket according to claim 2, characterized in that: A receiving groove (221) for inserting the fixing spring sheet (121) is provided on the groove wall of the fixing groove (22); when the fixing block (12) is inserted into the fixing groove (22), the fixing spring sheet (121) is inserted into the receiving groove (221).

4. The anti-deformation long-life composite sealing gasket according to claim 3, characterized in that: The deformation portion (242) is provided with a clamping block (243), and the clamping block (243) is located between the deformation portion (242) and the placement portion (241); when the fixing block (12) is inserted into the fixing groove (22), the clamping block (243) can be located between the fixing spring sheet (121) and the fixing block (12).

5. The anti-deformation long-life composite sealing gasket according to claim 2, characterized in that: An elastic block (231) is provided on the groove wall of the placement groove (23); when the placement portion (241) abuts against the elastic block (231), the limiting strip (24) is pre-fixed on the flexible layer (2).

6. The anti-deformation long-life composite sealing gasket according to claim 4, characterized in that: The flexible layer (2) is provided with a through hole (25) connected to the placement groove (23); a fixing strip (251) is slidably connected in the through hole (25); the fixing strip (251) can extend out of the flexible layer (2); when the hard layer (1) abuts against the fixing strip (251), the fixing strip (251) abuts against a side of the card block (243) away from the fixing spring sheet (121).

7. The anti-deformation long-life composite sealing gasket according to claim 1, characterized in that: The hard layer (1) is provided with a guide strip (11), and the flexible layer (2) is provided with a guide groove (21); when the guide strip (11) is inserted into the guide groove (21), the fixing block (12) is not located in the fixing groove (22), and the fixing block (12) is aligned with the fixing groove (22).

8. The anti-deformation long-life composite sealing gasket according to claim 1, characterized in that: The hard layer (1) is provided with a plurality of stop blocks (131), and the flexible layer (2) is provided with a plurality of stop strips (26), the plurality of stop strips (26) are arranged crosswise with each other, and the plurality of stop strips (26) form stop grooves (261); when the stop blocks (131) are inserted into the stop grooves (261), the hard layer (1) is fixed on the flexible layer (2).

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