Sealing adjusting check valve

Abstract

The utility model relates to the field of adjusting check valves, in particular to a sealing adjusting check valve. A second groove is formed in the arc-shaped surface of the inner wall of a connecting hole, a second metal ring is arranged on the arc-shaped surface of the inner wall of the connecting hole, a metal sleeve is arranged on the arc-shaped surface of the outer end of a first sealing gasket, a clamping groove is formed in the arc-shaped surface of the inner end of the metal sleeve, and a first groove is formed in the arc-shaped surface of the inner end of the first sealing gasket. The sealing structure has the beneficial effects that the second metal ring is clamped in the second groove, the bolt does not deform the inner wall of the connecting hole under the limitation of the second metal ring, meanwhile, the first metal ring is clamped in the first groove, and the sealing gaskets are prevented from deforming inwards under the limitation of the first metal ring; and then the first sealing gasket and the second sealing gasket are clamped into the clamping grooves, under the limitation of the metal sleeve, the sealing gaskets are prevented from deforming outwards, and complete deformation prevention of the sealing gaskets is achieved.

Description

Technical Field

[0001] The utility model relates to the field of regulating check valves, in particular to a sealing regulating check valve. Background Art

[0002] A check valve is a valve whose opening and closing part is a circular disc and which relies on its own weight and medium pressure to produce movement to block the backflow of the medium.

[0003] In the prior art, various check valves are often needed to control the flow of fluids in industrial production and civil water supply. The flange of the check valve is aligned with the flange of the pipeline, and a rubber sealing gasket is placed between the two flanges for sealing. The two flanges are then connected and fixed by bolts. Finally, the check valve is operated to control the flow of fluids in the pipeline.

[0004] However, when a conventional check valve is used for a long time, the rubber gasket is prone to deformation, and the deformation of the gasket will affect its sealing effect, making the check valve prone to water leakage. Utility Model Content

[0005] The utility model aims to provide a sealing regulating check valve to solve the problem that the traditional rubber sealing pad of the check valve mentioned in the above background technology is easy to deform.

[0006] To achieve the above object, the utility model provides the following technical solution: a sealing regulating check valve, the sealing regulating check valve comprising:

[0007] A first sealing gasket; a second sealing gasket is provided on the surface of the first sealing gasket, a connecting hole is opened on the surface of the first sealing gasket, a second groove is opened on the arc surface of the inner wall of the connecting hole, a second metal ring is provided on the arc surface of the inner wall of the connecting hole, a connecting groove is opened on one side surface of the first sealing gasket, a connecting rod is provided on one side surface of the first sealing gasket, a metal sleeve is provided on the arc surface of the outer end of the first sealing gasket, a clamping groove is opened on the arc surface of the inner end of the metal sleeve, a first groove is opened on the arc surface of the inner end of the first sealing gasket, and a first metal ring is provided on the arc surface of the inner end of the first sealing gasket.

[0008] Preferably, the first sealing gasket is located on one side surface of the flange, a flange hole is opened on the flange surface, a pipeline is fixed on the other side surface of the flange, a check valve body is fixed on the other side surface of the metal sleeve, and the first sealing gasket is exactly the same as the second sealing gasket.

[0009] Preferably, the connecting holes are provided in multiple groups, and the multiple groups of connecting holes are distributed circumferentially on the surface of the first sealing gasket; the flange holes are provided in multiple groups, and the multiple groups of flange holes are distributed circumferentially on the surface of the flange, and the connecting holes correspond to the flange holes. The first sealing gasket connects the pipeline, the first sealing gasket and the check valve body through the connecting holes and the flange holes.

[0010] Preferably, the second grooves are provided in multiple groups, and the multiple groups of second grooves are circumferentially distributed on the arc surface of the inner wall of the connecting hole. The second metal rings are provided in multiple groups, and the multiple groups of second metal rings are circumferentially distributed on the arc surface of the inner wall of the connecting hole. The second metal rings correspond to the second grooves, and the second metal rings are clamped in the second grooves.

[0011] Preferably, the connecting grooves are provided in multiple groups, which are circumferentially distributed on the surface of one side of the first sealing gasket; the connecting rods are provided in multiple groups, which are circumferentially distributed on the surface of one side of the first sealing gasket; the connecting rods correspond to the connecting grooves, and the connecting rods are clamped in the connecting grooves.

[0012] Preferably, the first grooves are provided in multiple groups, and the multiple groups of first grooves are symmetrically distributed on the arc surface of the inner end of the first sealing gasket and the arc surface of the inner end of the second sealing gasket. The first metal ring corresponds to the first groove, and the first metal ring is simultaneously clamped in the first groove provided at the inner end of the first sealing gasket and the first groove provided at the inner end of the second sealing gasket.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] With the first sealing gasket and the second sealing gasket sealing at the same time, the sealing performance of the check valve body is improved. Then, the second metal ring is clamped in the second groove. Under the restriction of the second metal ring, the bolt will not cause the inner wall of the connecting hole to deform. At the same time, the first metal ring is clamped in the first groove. Under the restriction of the first metal ring, the sealing gasket is prevented from deforming inward. Then, the first sealing gasket and the second sealing gasket are clamped in the clamping groove. Under the restriction of the metal sleeve, the sealing gasket is prevented from deforming outward, thereby achieving complete deformation prevention of the sealing gasket. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the sealing structure of the utility model;

[0017] Figure 3 This is a schematic cross-sectional view of the sealing structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the first sealing gasket of the utility model;

[0019] Figure 5 This is a schematic diagram of the metal sleeve structure of the utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the second metal ring of the utility model;

[0021] Figure 7 This is a schematic diagram of the connecting rod structure of the utility model.

[0022] In the figure: 1 pipeline, 2 flange, 3 metal sleeve, 4 check valve body, 5 flange hole, 6 first sealing gasket, 7 first metal ring, 8 second metal ring, 9 connecting hole, 10 second sealing gasket, 11 connecting rod, 12 first groove, 13 second groove, 14 connecting groove, 15 clamping groove. DETAILED DESCRIPTION

[0023] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Embodiment 1

[0025] See also Figure 1-Figure 7 The utility model provides a technical solution: a sealing and regulating check valve, a second sealing gasket 10 is arranged on the surface of a first sealing gasket 6, and the sealing performance of the check valve body 1 is improved under the simultaneous sealing of the first sealing gasket 6 and the second sealing gasket 10, a connecting hole 9 is opened on the surface of the first sealing gasket 6, a second groove 13 is opened on the arc surface of the inner wall of the connecting hole 9, a second metal ring 8 is arranged on the arc surface of the inner wall of the connecting hole 9, and under the restriction of the second metal ring 7, the bolt will not cause the inner wall of the connecting hole 9 to deform, a connecting groove 14 is opened on one side surface of the first sealing gasket 6, a connecting rod 11 is arranged on one side surface of the first sealing gasket 6, and a positioning effect is played on the connection between the first sealing gasket 6 and the second sealing gasket 10, a metal sleeve 3 is arranged on the outer end arc surface of the first sealing gasket 6, a clamping groove 15 is opened on the inner end arc surface of the metal sleeve 3, and under the restriction of the metal sleeve 3, the sealing gasket is prevented from deforming outward, a first groove 12 is opened on the inner end arc surface of the first sealing gasket 6, and a first metal ring 7 is arranged on the inner end arc surface of the first sealing gasket 6, and under the restriction of the first metal ring 7, the sealing gasket is prevented from deforming inward.

[0026] Embodiment 2

[0027] On the basis of the first embodiment, in order to realize the anti-deformation of the sealing gasket, the first sealing gasket 6 is located on one side of the flange 2, the flange 2 is provided with a flange hole 5, the other side of the flange 2 is fixed with a pipe 1, the other side of the metal sleeve 3 is fixed with a check valve body 4, the first sealing gasket 6 and the second sealing gasket 10 are connected to each other.

[0028] Exactly the same;

[0029] The connection holes 9 are provided with a plurality of groups, and the plurality of connection holes 9 are circumferentially distributed on the surface of the first sealing gasket 6. The flange holes 5 are provided with a plurality of groups, and the plurality of flange holes 5 are circumferentially distributed on the surface of the flange 2. The connection holes 9 correspond to the flange holes 5. The first sealing gasket 6 connects the pipeline 1 and the first sealing gasket 6 through the connection holes 9 and the flange holes 5.

[0030] The gasket 6 and the check valve body 4 are connected;

[0031] There are multiple groups of second grooves 13, which are circumferentially distributed on the arc surface of the inner wall of the connecting hole 9. There are multiple groups of second metal rings 8, which are circumferentially distributed on the arc surface of the inner wall of the connecting hole 9. The second metal rings 8 correspond to the second grooves 13. The second metal rings 8 are clamped in the second grooves 13. Under the restriction of the second metal rings 7, the bolts will not cause the inner wall of the connecting hole 9 to deform.

[0032] There are multiple groups of connecting grooves 14, which are circumferentially distributed on one side of the first gasket 6. There are multiple groups of connecting rods 11, which are circumferentially distributed on one side of the first gasket 6. The connecting rods 11 correspond to the connecting grooves 14. The connecting rods 11 are clamped in the connecting grooves 14, which play a positioning role in the connection between the first gasket 6 and the second gasket 10.

[0033] There are multiple groups of first grooves 12, which are symmetrically distributed on the arc surface of the inner end of the first sealing gasket 6 and the arc surface of the inner end of the second sealing gasket 10. The first metal ring 7 corresponds to the first groove 12. The first metal ring 7 is simultaneously clamped in the first groove 12 opened at the inner end of the first sealing gasket 6 and the first groove 12 opened at the inner end of the second sealing gasket 10. Under the restriction of the first metal ring 7, the sealing gasket is prevented from deforming inward.

[0034] In actual use, since the first sealing gasket 6 is exactly the same as the second sealing gasket 10, the connecting rod 11 is clamped in the connecting groove 14 opened on the surface of the first sealing gasket 6 or the second sealing gasket 10, and then the connecting groove 14 opened by the other sealing gasket is clamped with the connecting rod 11. Under the sealing of the two sets of sealing gaskets, the sealing performance of the check valve body 1 is improved. Then the second metal ring 8 is clamped in the second groove 13. When the bolt passes through the flange hole 5 and the connecting hole 9 to connect the pipeline, the sealing gasket and the check valve body 1, under the restriction of the second metal ring 7, the bolt will not cause the inner wall of the connecting hole 9 to deform. At the same time, the first metal ring 7 is clamped in the first groove 12. Under the restriction of the first metal ring 7, the sealing gasket is prevented from deforming inwardly. Then the first sealing gasket 6 and the second sealing gasket 10 are clamped in the clamping groove 15. Under the restriction of the metal sleeve 3, the sealing gasket is prevented from deforming outwardly, and the sealing gasket is completely prevented from deformation. This structure is simple and easy to operate, improves the sealing performance of the sealing gasket and prevents the sealing gasket from deformation, which is conducive to improving its use effect.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing regulating check valve, characterized in that: The sealing regulating check valve comprises: A first sealing gasket (6); a second sealing gasket (10) is provided on the surface of the first sealing gasket (6); a connecting hole (9) is provided on the surface of the first sealing gasket (6); a second groove (13) is provided on the arc surface of the inner wall of the connecting hole (9); a second metal ring (8) is provided on the arc surface of the inner wall of the connecting hole (9); a connecting groove (14) is provided on one side surface of the first sealing gasket (6); a connecting rod (11) is provided on one side surface of the first sealing gasket (6); a metal sleeve (3) is provided on the outer end arc surface of the first sealing gasket (6); a clamping groove (15) is provided on the inner end arc surface of the metal sleeve (3); a first groove (12) is provided on the inner end arc surface of the first sealing gasket (6); and a first metal ring (7) is provided on the inner end arc surface of the first sealing gasket (6).

2. A sealing regulating check valve according to claim 1, characterized in that: The first sealing gasket (6) is located on one side surface of the flange (2), a flange hole (5) is provided on the surface of the flange (2), a pipeline (1) is fixed to the other side surface of the flange (2), and a check valve body (4) is fixed to the other side surface of the metal sleeve (3), and the first sealing gasket (6) is completely identical to the second sealing gasket (10).

3. A sealing regulating check valve according to claim 1, characterized in that: The connecting holes (9) are provided in a plurality of groups, and the plurality of connecting holes (9) are circumferentially distributed on the surface of the first sealing gasket (6); the flange holes (5) are provided in a plurality of groups, and the plurality of flange holes (5) are circumferentially distributed on the surface of the flange (2); the connecting holes (9) correspond to the flange holes (5); and the first sealing gasket (6) connects the pipeline (1), the first sealing gasket (6) and the check valve body (4) via the connecting holes (9) and the flange holes (5).

4. A sealing regulating check valve according to claim 1, characterized in that: The second grooves (13) are provided in a plurality of groups, and the plurality of groups of second grooves (13) are circumferentially distributed on the arc surface of the inner wall of the connecting hole (9). The second metal rings (8) are provided in a plurality of groups, and the plurality of groups of second metal rings (8) are circumferentially distributed on the arc surface of the inner wall of the connecting hole (9). The second metal rings (8) correspond to the second grooves (13), and the second metal rings (8) are clamped in the second grooves (13).

5. The sealing regulating check valve according to claim 1, characterized in that: The connecting grooves (14) are provided in a plurality of groups, and the plurality of connecting grooves (14) are circumferentially distributed on the surface of one side of the first sealing gasket (6). The connecting rods (11) are provided in a plurality of groups, and the plurality of connecting rods (11) are circumferentially distributed on the surface of one side of the first sealing gasket (6). The connecting rods (11) correspond to the connecting grooves (14), and the connecting rods (11) are clamped in the connecting grooves (14).

6. A sealing regulating check valve according to claim 1, characterized in that: The first grooves (12) are provided in a plurality of groups, and the plurality of groups of first grooves (12) are symmetrically distributed on the arc surface at the inner end of the first sealing gasket (6) and the arc surface at the inner end of the second sealing gasket (10). The first metal ring (7) corresponds to the first groove (12), and the first metal ring (7) is simultaneously clamped in the first groove (12) provided at the inner end of the first sealing gasket (6) and the first groove (12) provided at the inner end of the second sealing gasket (10).

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