High-pressure-resistant hose connector sealing element

Abstract

The utility model discloses a high-pressure-resistant hose connector sealing element which comprises a main sealing ring, the upper end and the lower end of one side of the surface of the main sealing ring are fixedly connected with sealing air bag rings, the top end and the bottom end of the main sealing ring are fixedly connected with auxiliary sealing rings, and cavities are formed in the auxiliary sealing rings. The surface of the main sealing ring is fixedly connected with a compression-resistant ring, the inner wall of the fixing groove is fixedly connected with a reset elastic block, and one end of the reset elastic block is fixedly connected with a rubber block extending out of the fixing groove. Compared with the prior art, the sealing device has the advantages that the clamping friction force between the outer wall of the main sealing ring and the inner wall of the connector can be increased through the cooperation of the rubber block and the reset elastic block, the cavity can be compressed to expand the sealing air bag ring when the auxiliary sealing ring is stressed, and then the sealing air bag ring can be further tightly attached to the inner wall of the connector. The auxiliary sealing ring and the main sealing ring are clamped and placed on the inner wall of the connector more firmly, and the sealing performance after clamping is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hose joint sealing, and particularly relates to a high-pressure-resistant hose joint sealing element. BACKGROUND

[0002] The high-pressure-resistant hose joint is an interface component for connecting a high-pressure hose with hydraulic machinery, a hydraulic pump and other elements, and is mainly used for transmitting liquid or gas. In order to ensure the reliable sealing performance after connection, a corresponding sealing element is needed to ensure the sealing performance of the joint and other pipe mouths. Nowadays, a sealing ring is usually used for sealing operation.

[0003] Through retrieval, an existing patent (publication number: CN210566875U) discloses a novel high-pressure rubber hose joint sealing element, which comprises a sealing element body. The sealing element body is annular, a protrusion is arranged on the outer middle side of the sealing element body, and a groove is arranged on the inner middle side of the sealing element body.

[0004] However, in the above-mentioned scheme, the connection between the sealing element body and the inner wall of the joint is not firm enough. The existing sealing element body is usually directly placed in the joint, and then threaded connection is performed. However, direct placement is not firm enough, which causes the sealing element body to easily separate from the joint, thereby affecting the subsequent normal use. UTILITY MODEL CONTENT

[0005] Therefore, the utility model provides a high-pressure-resistant hose joint sealing element to solve the above-mentioned problems in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] According to the first aspect of the utility model, a high-pressure-resistant hose joint sealing element comprises a main sealing ring, a sealing air bag ring is fixedly connected to the upper end and the lower end of one side of the surface of the main sealing ring, a secondary sealing ring is fixedly connected to the top end and the bottom end of the main sealing ring, a cavity is arranged in the secondary sealing ring, the inner bottom wall of the cavity is in communication with the inner part of the sealing air bag ring, a pressure-resistant ring is fixedly connected to the surface of the main sealing ring, equiangular fixing grooves are arranged on the surface of the pressure-resistant ring, reset elastic blocks are fixedly connected to the inner wall of the fixing grooves, and rubber blocks extending to the outside of the fixing grooves are fixedly connected to one end of the reset elastic blocks.

[0008] Further, equiangular anti-skid grooves are arranged on the surface of the secondary sealing ring, and the shape of the anti-skid grooves is wavy.

[0009] Further, equiangular anti-skid lines are arranged on the surface of the secondary sealing ring, and the shape of the anti-skid lines is arc-shaped.

[0010] Further, equidistant grooves are arranged on the inner wall of the main sealing ring, and the shape of the cross section of the groove is arc-shaped.

[0011] Further, the inner wall of the cavity is fixedly connected with elastic blocks at equal angles, and two ends of the elastic blocks are fixedly connected with the inner top wall and the inner bottom wall of the cavity respectively.

[0012] Further, one end of the rubber block is in sliding structure with the inside of the fixed groove, and the rubber blocks are distributed at equal angles on the surface of the main sealing ring.

[0013] Further, the compression ring is in the shape of O, and is fixedly connected at the middle position of the surface of the main sealing ring.

[0014] The utility model has the advantages of the following:

[0015] In the utility model, the auxiliary sealing ring and the main sealing ring are placed in the joint, the anti-skid pattern in the arc shape is used to improve the anti-skid friction force between the surface of the auxiliary sealing ring and the inner wall of the joint, the elasticity of the reset elastic block is used to make one end of the rubber block tightly adhere to the inner wall of the joint, the clamping tightness between the outer surface of the main sealing ring and the inner wall of the joint is improved, after the threaded connection and locking of the pipeline joint, the auxiliary sealing ring and the main sealing ring are deformed to a certain extent, the recess is used to improve the compression amount of the main sealing ring, the sealing property of the main sealing ring itself is improved, after the auxiliary sealing ring is pressed under stress, the cavity is contracted and the elastic block is pressed, part of the air in the cavity is transported to the inside of the sealing air bag ring, the sealing air bag ring is inflated to tightly adhere to the inner wall of the joint, the fastening property and the sealing property of the surface of the main sealing ring and the inner wall of the joint are further improved, after the joint is loosened, the surface of the auxiliary sealing ring is not stressed, the elastic block is used to make the cavity recover faster, the clamping tightness of the auxiliary sealing ring and the main sealing ring placed on the inner wall of the joint and the sealing property after threaded connection are improved, the normal use after the connection of the pipeline joint is facilitated, and the practicality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front view structure sectional view of the utility model.

[0017] Figure 2 It is a front view structure schematic view of the utility model.

[0018] Figure 3 It is a structure sectional view of the auxiliary sealing ring of the utility model.

[0019] Figure 4 It is a compression ring structure schematic view of the utility model.

[0020] Figure 5 It is a local structure sectional view of the sealing air bag ring of the utility model.

[0021] In the diagram: 1. Anti-slip groove; 2. Secondary sealing ring; 3. Groove; 4. Main sealing ring; 5. Sealing airbag ring; 6. Cavity; 7. Rubber block; 8. Anti-slip texture; 9. Elastic block; 10. Anti-compression ring; 11. Reset spring block; 12. Fixing groove. Detailed Implementation

[0022] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] like Figures 1 to 5 As shown, a high-pressure resistant hose connector seal according to the first aspect embodiment of the present invention includes a main sealing ring 4, a sealing airbag ring 5 fixedly connected to the upper and lower ends of one side of the surface of the main sealing ring 4, a secondary sealing ring 2 fixedly connected to the top and bottom ends of the main sealing ring 4, a cavity 6 opened inside the secondary sealing ring 2, the bottom wall of the cavity 6 communicating with the interior of the sealing airbag ring 5, an anti-pressure ring 10 fixedly connected to the surface of the main sealing ring 4, a fixing groove 12 opened at equal angles on the surface of the anti-pressure ring 10, a reset spring block 11 fixedly connected to the inner wall of the fixing groove 12, and a rubber block 7 extending to the outside of the fixing groove 12 fixedly connected to one end of the reset spring block 11.

[0024] In this embodiment, the surface of the secondary sealing ring 2 is provided with anti-slip grooves 1 at equal angles. The anti-slip grooves 1 are wavy in shape. The wavy anti-slip grooves 1 are used to improve the anti-slip friction between the surface of the secondary sealing ring 2 and the joint.

[0025] In this embodiment, the surface of the secondary sealing ring 2 is provided with anti-slip textures 8 at equal angles. The anti-slip textures 8 are arc-shaped. The arc-shaped anti-slip textures 8 are used to improve the anti-slip friction between the surface of the secondary sealing ring 2 and the inner wall of the joint.

[0026] In this embodiment, the inner wall of the main sealing ring 4 is provided with grooves 3 at equal intervals. The cross-sectional shape of the grooves 3 is arc-shaped. The arc-shaped grooves 3 are used to improve the pressure rebound effect of the main sealing ring 4.

[0027] In this embodiment, elastic blocks 9 are fixedly connected to the inner wall of the cavity 6 at equal angles and symmetrically. The two ends of the elastic blocks 9 are fixedly connected to the inner top wall and the inner bottom wall of the cavity 6, respectively. By using the elastic blocks 9, the cavity 6 can recover more quickly after the pressure of the secondary sealing ring 2 is released, so that the secondary sealing ring 2 can return to its original state.

[0028] In the embodiment, one end of the rubber block 7 and the inside of the fixed groove 12 form a sliding structure, the rubber blocks 7 are distributed at equal angles on the surface of the main sealing ring 4, and the sliding of the one end of the rubber block 7 and the inside of the fixed groove 12 makes the rubber block 7 slide more smoothly, and facilitates the close clamping of the one end of the rubber block 7 and the inner wall of the joint.

[0029] In the embodiment, the anti-pressure ring 10 is in the shape of O, and is fixedly connected to the middle position of the surface of the main sealing ring 4. The O-shaped anti-pressure ring 10 improves the structural strength and pressure resistance of the main sealing ring 4.

[0030] The utility model works as follows: the auxiliary sealing ring 2 and the main sealing ring 4 are placed in the joint, the arc-shaped anti-skid line 8 improves the anti-skid friction force between the surface of the auxiliary sealing ring 2 and the inner wall of the joint, and because the protruding distance of the rubber block 7 is slightly greater than the diameter of the auxiliary sealing ring 2, the inner wall of the joint will touch the rubber block 7, which makes it slide and compress the reset spring block 11, and the elasticity of the reset spring block 11 makes the one end of the rubber block 7 close to the inner wall of the joint, which improves the clamping of the outer surface of the main sealing ring 4 and the inner wall of the joint. Then, another pipeline joint is screwed, and after the screw connection is locked, the auxiliary sealing ring 2 and the main sealing ring 4 will deform to a certain extent. At this time, the recess 3 improves the compression amount of the main sealing ring 4, which facilitates the improvement of the sealing performance of the main sealing ring 4. At the same time, the auxiliary sealing ring 2 will make the cavity 6 shrink and press the elastic block 9 after being pressed, which will transport part of the air in the cavity 6 to the inside of the sealing air bag ring 5, make the sealing air bag ring 5 expand and close to the inner wall of the joint, further improve the fastening and sealing performance of the surface of the main sealing ring 4 and the inner wall of the joint, and at the same time, after the joint is loosened, the surface of the auxiliary sealing ring 2 is not stressed, at this time, the elastic block 9 facilitates the faster recovery of the cavity 6, prolonging its service life.

Claims

1. A high pressure resistant hose coupling seal comprising a primary seal ring (4), characterized in that, The upper end and the lower end of the surface side of the main sealing ring (4) are fixedly connected with the sealing air bag ring (5), the top end and the bottom end of the main sealing ring (4) are fixedly connected with the auxiliary sealing ring (2), the inside of the auxiliary sealing ring (2) is provided with a cavity (6), the inside bottom wall of the cavity (6) is communicated with the inside of the sealing air bag ring (5), the surface of the main sealing ring (4) is fixedly connected with the pressure resisting ring (10), the surface of the pressure resisting ring (10) is provided with the fixed groove (12) at equal angles, the inside wall of the fixed groove (12) is fixedly connected with the reset elastic block (11), one end of the reset elastic block (11) is fixedly connected with the rubber block (7) extending to the outside of the fixed groove (12).

2. A high pressure hose coupling seal according to claim 1, characterised in that The surface of the auxiliary sealing ring (2) is provided with the anti-skid groove (1) at equal angles, and the anti-skid groove (1) is in the shape of a wave.

3. A high pressure hose coupling seal according to claim 1, wherein, The surface of the auxiliary sealing ring (2) is provided with the anti-skid line (8) at equal angles, and the anti-skid line (8) is in the shape of an arc.

4. A high pressure hose coupling seal according to claim 1, wherein, The inside wall of the main sealing ring (4) is provided with the groove (3) at equal intervals, and the shape of the cross section of the groove (3) is an arc.

5. A high pressure hose coupling seal according to claim 1, wherein, The inside wall of the cavity (6) is fixedly connected with the elastic block (9) at equal angles, and the two ends of the elastic block (9) are fixedly connected with the inside top wall and the inside bottom wall of the cavity (6) respectively.

6. A high pressure hose coupling seal according to claim 1, wherein, The inside of the rubber block (7) and the inside of the fixed groove (12) constitute a sliding structure, and the rubber block (7) is distributed at equal angles on the surface of the main sealing ring (4).

7. A high pressure hose coupling seal according to claim 1, wherein, The shape of the pressure resisting ring (10) is O-shaped, and the pressure resisting ring (10) is fixedly connected at the middle position of the surface of the main sealing ring (4).

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