Self-expanding anti-deformation gasket

Abstract

The utility model relates to the technical field of metal gaskets, in particular to a self-expansion anti-deformation gasket. The sealing gasket comprises an upper gasket body and a lower gasket body, a sealing gasket is sleeved between the upper gasket body and the lower gasket body, a plurality of clamping blocks are evenly distributed on the side, close to the lower gasket body, of the upper gasket body in the circumferential direction, clamping grooves are formed in the positions, corresponding to the clamping blocks, of the side, close to the upper gasket body, of the lower gasket body, and protruding blocks extending towards the inner ring are arranged on the side faces of the clamping blocks. The side wall, close to the inner ring, of one end of the clamping groove is provided with a check block extending towards the outer ring, and the length of the end, away from the check block, of the clamping groove is larger than that of the clamping block. By rotating the upper gasket or the lower gasket, the protruding block and the check block can be close to each other, and the upper side face of the protruding block abuts against the lower side face of the check block. After the prior art is improved, the upper gasket or the lower gasket is rotated to enable the protruding block and the check block to be close to each other and then self-locked, and therefore the gasket can be assembled easily and rapidly.

Description

Technical Field

[0001] The utility model relates to the technical field of metal washers, in particular to a self-expanding and deformation-resistant washer. Background Art

[0002] A washer is a component placed between a connected part and a nut. Typically a flat metal ring, it protects the surface of the connected part from scratches caused by the nut and distributes the pressure exerted by the nut on the connected part. Furthermore, in some waterproof connectors, washers also provide a sealing function. Traditional washers are typically made from a single metal ring. During use, washers often deform due to changes in the positional relationship between the nut and the connected part. This deformed gasket cannot effectively distribute pressure or provide a good seal.

[0003] In view of this, a Chinese patent document with authorization number CN214945677U discloses a new type of self-expanding and anti-deformation gasket structure, which includes an upper gasket and a lower gasket, a sealing gasket is set between the upper gasket and the lower gasket, a card is provided at the bottom of the upper gasket, and a card slot adapted to the card is provided inside the lower gasket. The above-mentioned gasket structure limits and fixes the upper gasket and the lower gasket by cooperating with the card and the card slot, so that the gasket can form a self-locking after being tightened to enhance the internal connection sealing. At the same time, the positioning column and the positioning hole are used in conjunction to ensure that there is positioning between the upper gasket and the lower gasket. However, during assembly, the card and the card slot, as well as the positioning column and the positioning hole, need to be aligned at the same time before they can be inserted and self-locked, so the assembly is relatively time-consuming and labor-intensive.

[0004] Therefore, it is necessary to improve the above shortcomings of the prior art. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a self-expanding and anti-deformation gasket in view of the above-mentioned deficiencies in the prior art, so as to solve the problem that the prior art is relatively time-consuming and labor-intensive during assembly.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a self-expanding and anti-deformation gasket, comprising an upper gasket and a lower gasket, a sealing gasket is set between the upper gasket and the lower gasket, the upper gasket is provided with a plurality of blocks evenly distributed circumferentially on the side close to the lower gasket, the lower gasket is provided with a slot at the corresponding position of the block on the side close to the upper gasket, the side of the block is provided with a protrusion extending toward the inner ring, and a stopper extending toward the outer ring is provided on the side wall of one end of the slot close to the inner ring, the length of the end of the slot away from the stopper is greater than the length of the block, after the block is inserted into the slot to make the upper gasket and the lower gasket fit together, the protrusion and the stopper can be brought close to each other by rotating the upper gasket or the lower gasket and the upper side surface of the protrusion can be abutted against the lower side surface of the stopper.

[0007] By adopting the above technical solution, when assembling the gasket, the card block of the upper gasket is inserted into the end of the card slot away from the stop block, so that the upper gasket and the lower gasket fit together, and the sealing gasket is wrapped between the upper gasket and the lower gasket. Then, by rotating the upper gasket or the lower gasket, the protrusion on the card block and the stop block on the side wall of the card slot approach each other and the upper side surface of the protrusion abuts against the lower side surface of the stop block, thereby realizing the self-locking of the upper and lower gaskets. Because there is a certain tolerance range for the card block of the upper gasket to be inserted into the end of the card slot away from the stop block, the assembly method of the above gasket is relatively easy and quick.

[0008] The above technical solution is further configured as follows: a first inclined surface is provided on the side of the clamping block close to the inner ring, the protrusion is provided on the first inclined surface, a second inclined surface is provided at the bottom of the clamping groove that can fit snugly with the lower end of the first inclined surface, and a third inclined surface is provided at the upper end of the stop block that can fit snugly with the first inclined surface.

[0009] By adopting the above technical solution, the first bevel, the second bevel and the third bevel are arranged so that the card block can be inserted into the card slot more easily and smoothly, and the upper washer and the lower washer also have a limiting effect after being fitted and self-locked.

[0010] The above technical solution is further configured as follows: the number of the card blocks is set to 4 to 8.

[0011] By adopting the above technical solution, setting 4 to 8 clamping blocks can fix the upper washer and the lower washer together more stably. The more clamping blocks there are, the more stable and firm they are after self-locking.

[0012] The above technical solution is further configured as follows: an inner ring of the upper gasket close to the lower gasket is provided with an annular groove, the lower gasket is provided with an annular ridge adapted to the annular groove, and the sealing gasket is located between the block and the annular groove.

[0013] By adopting the above technical solution, both ends of the sealing gasket are limited by the cooperation between the clamping block and the clamping groove, and the cooperation between the annular groove and the annular ridge, so that the sealing gasket is better wrapped.

[0014] The above technical solution is further configured as follows: the upper washer is provided with an upper mounting groove between the clamping block and the annular groove, the lower washer is provided with a lower mounting groove adapted to the upper mounting groove, and the sealing gasket is installed in a cavity formed by the upper mounting groove and the lower mounting groove.

[0015] By adopting the above technical solution, the sealing gasket is installed between the upper washer and the lower washer through the upper installation groove and the lower installation groove, which can improve the overall sealing performance of the gasket.

[0016] The beneficial effect achieved by the utility model is that the gasket can be assembled easily and quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the explosion structure of an embodiment of the utility model;

[0019] Figure 3 This is a structural diagram of the upper washer in an embodiment of the present utility model;

[0020] Figure 4 This is a schematic structural diagram of the lower gasket in an embodiment of the present utility model;

[0021] Figure 5 It is a cross-sectional view of an embodiment of the present utility model. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figure 1-5 As shown in, a self-expanding anti-deformation gasket comprises an upper gasket 1 and a lower gasket 2, a sealing gasket 3 is set between the upper gasket 1 and the lower gasket 2, the upper gasket 1 is circumferentially evenly provided with a plurality of blocks 11 on the side close to the lower gasket 2, and the lower gasket 2 is provided with a groove 21 at the corresponding position of the block 11 on the side close to the upper gasket 1, and a protrusion 12 extending toward the inner ring is provided on the side of the block 11, and a stopper 22 extending toward the outer ring is provided on the side wall of the groove 21 at one end close to the inner ring. The length of the end of the groove 21 away from the stopper 22 is greater than the length of the block 11. After the block 11 is inserted into the groove 21 to fit the upper gasket 1 and the lower gasket 2, the protrusion 12 and the stopper 22 can be brought close to each other by rotating the upper gasket 1 or the lower gasket 2, and the upper side surface of the protrusion 12 abuts against the lower side surface of the stopper 22, and the block 11 A first inclined surface 110 is provided near the inner ring side, and the protrusion 12 is arranged on the first inclined surface 110. A second inclined surface 210 that can fit with the lower end of the first inclined surface 110 is provided at the bottom of the groove 21, and a third inclined surface 220 that can fit with the first inclined surface 110 is provided at the upper end of the stopper 22. The number of blocks is set to 4 to 8. An annular groove 13 is provided on the inner ring of the upper gasket 1 near the lower gasket 2, and the lower gasket 2 is provided with an annular convex strip 23 that fits with the annular groove 13. The sealing gasket 3 is located between the block 11 and the annular groove 13. The upper gasket 1 is provided with an upper mounting groove 14 between the block 11 and the annular groove 13. The lower gasket 2 is provided with a lower mounting groove 24 that fits with the upper mounting groove 14. The sealing gasket 3 is installed in the chamber composed of the upper mounting groove 14 and the lower mounting groove 24.

[0024] In the technical solution of the above embodiment, when assembling the gasket, after the block 11 of the upper gasket 1 is inserted into the end of the card slot 21 away from the stop block 22, the upper gasket 1 and the lower gasket 2 are fitted together, and the sealing gasket 3 is wrapped in the upper mounting groove 14 and the lower mounting groove 24. Then, by rotating the upper gasket 1 or the lower gasket 2, the protrusion 12 on the block 11 and the stop block 22 on the side wall of the card slot 21 are close to each other and the upper side surface of the block 12 is abutted against the lower side surface of the stop block 22, thereby realizing the self-locking of the upper gasket 1 and the lower gasket 2; because the block 11 of the upper gasket 1 has a certain tolerance range when inserted into the end of the card slot 21 away from the stop block 22, the above-mentioned gasket assembly method is relatively easy and quick.

Claims

1. A self-expanding anti-deformation gasket, comprising an upper gasket and a lower gasket, wherein a sealing gasket is sleeved between the upper gasket and the lower gasket, wherein a plurality of blocks are evenly distributed circumferentially on one side of the upper gasket close to the lower gasket, and a card slot is provided on the side of the lower gasket close to the upper gasket at a position corresponding to the card block, characterized in that: The side of the block is provided with a protrusion extending toward the inner ring, and the side wall of one end of the slot close to the inner ring is provided with a stopper extending toward the outer ring, and the length of the end of the slot away from the stopper is greater than the length of the block. After the block is inserted into the slot to make the upper gasket and the lower gasket fit together, the protrusion and the stopper can be brought close to each other by rotating the upper gasket or the lower gasket and the upper side of the protrusion can be abutted against the lower side of the stopper.

2. A self-expanding anti-deformation gasket according to claim 1, characterized in that: The block is provided with a first inclined surface on one side close to the inner ring, the protrusion is arranged on the first inclined surface, the bottom of the slot is provided with a second inclined surface which can fit with the lower end of the first inclined surface, and the upper end of the stopper is provided with a third inclined surface which can fit with the first inclined surface.

3. A self-expanding anti-deformation gasket according to claim 2, characterized in that: The number of card blocks is set to 4 to 8.

4. A self-expanding anti-deformation gasket according to any one of claims 1 to 3, characterized in that: An inner ring of the upper gasket close to one side of the lower gasket is provided with an annular groove, the lower gasket is provided with an annular convex strip adapted to the annular groove, and the sealing gasket is located between the clamping block and the annular groove.

5. A self-expanding anti-deformation gasket according to claim 4, characterized in that: The upper gasket is provided with an upper mounting groove between the clamping block and the annular groove, the lower gasket is provided with a lower mounting groove adapted to the upper mounting groove, and the sealing gasket is installed in a chamber formed by the upper mounting groove and the lower mounting groove.

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