Industrial valve with flange seal

Abstract

The utility model belongs to industrial valve technical field especially has a kind of industrial valve with flange sealing, including valve body, the device is connected between annular rubber ring and compression ring, annular rubber ring can be compressed in the space formed by inner positioning ring, outer positioning ring and recess, and with the continuous pressurization of compression ring, annular rubber ring can fill the space, realize stable sealing effect, and under the cooperation of inner rubber gasket and outer rubber gasket, the closed structure of the device can be increased, multiple sealing effect can be realized, even if some sealing structure in annular rubber ring, inner rubber gasket or outer rubber gasket appears aging condition, still can rely on other structure to seal effect, can make sealing efficiency further improve, can effectively avoid the leakage between valve body and closed flange, guarantee the stability of use.

Description

Technical Field

[0001] This utility model belongs to the field of industrial valve technology, and specifically relates to an industrial valve with flange sealing. Background Technology

[0002] Industrial valves are important accessories used to control the flow of media in industrial pipelines. They can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metals and radioactive media. A valve consists of three main parts: valve body, opening and closing mechanism and valve cover.

[0003] A review of announcement number CN217272195U reveals an industrial valve with a flange seal. This technology discloses "a valve body, a connecting pipe, a flange, and a connecting plate, wherein the valve body and the flange are fixedly connected, and the number of flanges is set to two. The connecting pipe and the connecting plate are also fixedly connected. This industrial valve with a flange seal, by setting a sealing ring, a first sealing element, and a second sealing element, places the sealing ring on the inner wall of the first sealing groove, and aligns the connecting plate with the flange. During use, when water pressure squeezes the inner wall, and when it passes through the flange, it squeezes the first and second sealing elements. The first sealing element will tightly adhere to the inner side of the second sealing element, thereby effectively enhancing the sealing performance. Even with long-term use, because the first and second sealing elements are closely fitted and placed in the same direction as the water flow, they effectively adhere to each other under water pressure, enhancing the sealing performance of the equipment, improving practicality, and extending service life."

[0004] Although this design can enhance sealing and ensure long-term use, as the first and second seals fit together and are placed in the same direction as the water flow, they effectively adhere tightly to each other under water pressure, enhancing the equipment's sealing performance, practicality, and service life. However, the sealed area formed by this device is relatively small, and the rubber rings will age after prolonged use, which can still lead to leakage.

[0005] To address the aforementioned problems, this application proposes an industrial valve with a flange seal. Utility Model Content

[0006] To address the problems mentioned in the background section, this invention provides an industrial valve with a flange seal. Through the connection between the annular rubber ring and the pressure ring, the annular rubber ring is compressed within the space formed by the inner and outer positioning rings and the groove. With continuous pressure from the pressure ring, the annular rubber ring fills this space, achieving a stable seal. Furthermore, the cooperation of the inner and outer rubber gaskets increases the sealing structure of the device, enabling multiple seals. Even if one of the sealing structures—the annular rubber ring, the inner rubber gasket, or the outer rubber gasket—ages, the remaining structures can still provide a seal, further improving sealing efficiency. This effectively prevents leakage between the valve body and the sealing flange, ensuring stable operation.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an industrial valve with a flange seal, comprising a valve body and an annular rubber ring that is fitted and connected to the surface of the valve body. An inner positioning ring is connected to one side of the annular rubber ring, and the inner positioning ring is fitted and connected to one side of the valve body. An outer positioning ring is also provided on the other side of the annular rubber ring. The outer positioning ring and the inner positioning ring are concentric circles. A sealing flange is also provided on one side of the outer positioning ring and the inner positioning ring. A pressure ring is provided on one side of the sealing flange, and the pressure ring is connected to the surface of the annular rubber ring.

[0008] As a preferred embodiment of the present invention, an industrial valve with flange sealing is provided on the surface of the valve body, and the groove is semi-circular in shape. The groove and the annular rubber ring are fitted together. An inner rubber gasket is also fitted together on one side of the valve body. The side of the inner rubber gasket away from the valve body is fitted together with the outer positioning ring.

[0009] As a preferred embodiment of the present invention, an industrial valve with a flange seal is provided, wherein one side of the annular rubber ring is fitted and connected to the A-groove on the surface of the inner positioning ring, and an anti-deviation bracket is also installed at an equal angle on the side of the inner positioning ring near the valve body, and the anti-deviation bracket is slidably connected to the insertion hole on the surface of the valve body.

[0010] As a preferred embodiment of the industrial valve with flange sealing according to this utility model, the inner diameter of the outer positioning ring is provided with a B-groove, the B-groove and the surface of the annular rubber ring are fitted together, and the B-groove and the A-groove are installed on the side of the annular rubber ring away from the groove, and the B-groove and the A-groove form a semi-enclosed structure for the annular rubber ring, and an annular space is formed between the inner diameter of the outer positioning ring and the outer diameter of the inner positioning ring, the width of the annular space is matched with the pressure ring, and an outer rubber gasket is also fitted and connected to one side of the outer positioning ring.

[0011] In a preferred embodiment of this utility model of an industrial valve with a flange seal, the side of the outer rubber gasket away from the outer positioning ring is also in contact with the surface of the sealing flange, and the pressure ring is integrally formed on the surface of the sealing flange.

[0012] As a preferred embodiment of the present invention, an industrial valve with a flange seal, wherein the pressure ring is in the shape of a circular ring, and the pressure ring, the outer positioning ring, and the inner positioning ring are slidably connected, and the pressure ring extends to the other side of the inner positioning ring and the outer positioning ring and is in contact with the surface of the annular rubber ring, and bolts are also installed on the surface of the sealing flange, and the valve body, the inner rubber gasket, the outer positioning ring, and the sealing flange are connected by the bolts.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: Through the connection between the annular rubber ring and the pressure ring, the annular rubber ring can be compressed within the space formed by the inner positioning ring, the outer positioning ring, and the groove. With the continuous pressure of the pressure ring, the annular rubber ring can fill the space, achieving a stable sealing effect. With the cooperation of the inner and outer rubber gaskets, the sealing structure of the device can be increased, achieving a multi-seal effect. Even if one of the sealing structures, the annular rubber ring, the inner rubber gasket, or the outer rubber gasket, ages, the other structures can still provide a sealing effect, further improving the sealing efficiency. This effectively prevents leakage between the valve body and the sealing flange, ensuring the stability of use. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

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

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

[0017] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 4 This is a schematic diagram of the sealed state cross-sectional structure of this utility model;

[0019] Figure 5 This is a cross-sectional structural diagram of the present invention;

[0020] In the picture:

[0021] 1. Valve body; 2. Groove; 3. Annular rubber ring; 4. Inner rubber gasket; 5. Inner positioning ring; 6. Anti-deviation bracket; 7. Insertion hole; 8. A-groove; 9. Outer positioning ring; 10. B-groove; 11. Outer rubber gasket; 12. Sealing flange; 13. Pressure ring; 14. Bolt. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] like Figure 1 As shown:

[0025] An industrial valve with a flange seal includes a valve body 1.

[0026] In this implementation plan: The existing announcement number CN217272195U discloses an industrial valve with a flange seal. This patent discloses the valve body. The valve body 1 in this application adopts the same technical means as the prior art. The technical means will not be described in detail here. For details on the improvement of the prior art, please refer to the disclosed technology below. In order to solve the technical problems existing in the prior art, such as the "the sealing area formed by the device is small, and after long-term use, the rubber ring will age, and leakage will still occur" disclosed in the background technology above, this problem is obviously a real and difficult problem to solve. In view of this, in order to solve the above problems, an annular rubber ring 3 and a pressure ring 13 are added on the basis.

[0027] Furthermore:

[0028] like Figure 1 - Figure 5 As shown:

[0029] In conjunction with the above, it also includes an annular rubber ring 3 that is attached to the surface of the valve body 1. An inner positioning ring 5 is connected to one side of the annular rubber ring 3. The inner positioning ring 5 is attached to one side of the valve body 1. An outer positioning ring 9 is also provided on the other side of the annular rubber ring 3. The outer positioning ring 9 and the inner positioning ring 5 are concentric circles. A sealing flange 12 is also provided on one side of the outer positioning ring 9 and the inner positioning ring 5. A pressure ring 13 is provided on one side of the sealing flange 12. The pressure ring 13 is connected to the surface of the annular rubber ring 3.

[0030] In this implementation scheme: the connection between the annular rubber ring 3 and the pressure ring 13 allows the annular rubber ring 3 to be compressed within the space formed by the inner positioning ring 5, the outer positioning ring 9, and the groove 2. With the continuous pressurization of the pressure ring 13, the annular rubber ring 3 can fill the space, achieving a stable sealing effect. With the cooperation of the inner rubber gasket 4 and the outer rubber gasket 11, the sealing structure of the device can be increased, achieving a multi-seal effect. Even if one of the sealing structures, the annular rubber ring 3, the inner rubber gasket 4, or the outer rubber gasket 11, ages, the other structures can still provide a sealing effect, further improving the sealing efficiency and effectively preventing leakage between the valve body 1 and the sealing flange 12.

[0031] Furthermore:

[0032] In an optional embodiment, a groove 2 is provided on the surface of the valve body 1, and the groove 2 is semi-circular in shape. The groove 2 and the annular rubber ring 3 are fitted together. An inner rubber gasket 4 is also fitted together on one side of the valve body 1. The side of the inner rubber gasket 4 away from the valve body 1 is fitted together with the outer positioning ring 9.

[0033] In this embodiment, the groove 2 on the surface of the valve body 1 allows the annular rubber ring 3 to be fitted inside, providing a stable installation space for the annular rubber ring 3. With the cooperation of the inner positioning ring 5 and the outer positioning ring 9, the annular rubber ring 3 is fixed, providing an effective space for the deformation of the annular rubber ring 3.

[0034] Furthermore:

[0035] In an optional embodiment, one side of the annular rubber ring 3 is fitted and connected to the A-groove 8 opened on the surface of the inner positioning ring 5. The inner positioning ring 5 is also equipped with an anti-deviation bracket 6 at an equal angle on the side near the valve body 1. The anti-deviation bracket 6 is slidably connected to the insertion hole 7 opened on the surface of the valve body 1.

[0036] In this embodiment: under the action of the anti-deviation bracket 6 and the insertion hole 7, the inner positioning ring 5 will not shift under the action of the deformation of the annular rubber ring 3 when the annular rubber ring 3 is deformed, and the pressure ring 13 can cross the inner positioning ring 5 and form a stable connection between the outer positioning ring 9 and the annular rubber ring 3.

[0037] Furthermore:

[0038] In an optional embodiment, the inner diameter of the outer positioning ring 9 is provided with a B-groove 10, which is attached to the surface of the annular rubber ring 3. The B-groove 10 and the A-groove 8 are installed on the side of the annular rubber ring 3 away from the groove 2, and the B-groove 10 and the A-groove 8 form a semi-enclosed structure for the annular rubber ring 3. A circular space is formed between the inner diameter of the outer positioning ring 9 and the outer diameter of the inner positioning ring 5. The width of the circular space matches the pressure ring 13. An outer rubber gasket 11 is also attached to one side of the outer positioning ring 9.

[0039] In this embodiment: the outer positioning ring 9 can cooperate with the inner positioning ring 5 to limit the surface of the annular rubber ring 3 away from the groove 2, and at the same time, it can also achieve the sealing effect of the annular rubber ring 3, so as to prevent the annular rubber ring 3 from separating from the groove 2 when the pressure ring 13 squeezes the annular rubber ring 3.

[0040] Furthermore:

[0041] In an optional embodiment, the side of the outer rubber gasket 11 away from the outer positioning ring 9 is also bonded to the surface of the sealing flange 12, and the surface of the sealing flange 12 is integrally formed with a pressure ring 13.

[0042] In this embodiment: Under the action of the annular pressure ring 13, it can be extended to the position of the annular rubber ring 3, thereby enabling the extrusion of the annular rubber ring 3 and the deformation of the annular rubber ring 3. This allows the annular rubber ring 3 to fit tightly with the groove 2, the A-groove 8 and the B-groove 10, filling the internal annular cavity and achieving the purpose of sealing.

[0043] Furthermore:

[0044] In an optional embodiment, the pressure ring 13 is in the shape of a ring, and the pressure ring 13 is slidably connected to the outer positioning ring 9 and the inner positioning ring 5. The pressure ring 13 extends to the other side of the inner positioning ring 5 and the outer positioning ring 9 and is attached to the surface of the annular rubber ring 3. Bolts 14 are also installed on the surface of the sealing flange 12, and the valve body 1, the inner rubber gasket 4, the outer positioning ring 9 and the sealing flange 12 are connected by bolts 14.

[0045] In this embodiment: Under the action of the pressure ring 13, a certain pressure can be applied to the annular rubber ring 3, which can cause the annular rubber ring 3 to deform and fill the space where the groove 2, the A-groove 8 and the B-groove 10 are located, thus achieving a stable sealing effect. The outer positioning ring 9 and the inner positioning ring 5 can also maintain the stability of the position of the annular rubber ring 3 when the pressure ring 13 and the annular rubber ring 3 are connected, thus preventing the annular rubber ring 3 from shifting.

[0046] The working principle and usage process of this utility model are as follows: When installing the device, the annular rubber ring 3 can be first embedded into the groove 2 opened on the surface of the valve body 1. Then, the anti-deviation bracket 6 can be slid into the insertion hole 7 opened on the surface of the valve body 1. At this time, the inner positioning ring 5 will fit with the valve body 1, and the A-groove 8 opened on the surface of the inner positioning ring 5 will fit with one side surface of the annular rubber ring 3. Then, the inner rubber gasket 4 can be fitted to the outside of the annular rubber ring 3, and the outer positioning ring 9 can be fitted to the outside of the annular rubber ring 3. At this time, the B-groove 10 opened on the surface of the outer positioning ring 9 will fit with the other side of the annular rubber ring 3. At this time, there is an annular gap between the outer positioning ring 9 and the inner positioning ring 5. Then, the outer rubber gasket 11 can be placed on the outside of the outer positioning ring 9, and the sealing flange 12 and the outer rubber gasket 11 can be connected. When the sealing flange 12 is in place, the pressure ring 13 will slide into the gap between the outer positioning ring 9 and the inner positioning ring 5, and compress the annular rubber ring 3. At this time, the valve body 1, the inner rubber gasket 4, the outer rubber gasket 11 and the sealing flange 12 can be connected in series by the bolts 14 and gradually tightened. Under the continuous pressure of the sealing flange 12, the pressure ring 13 will gradually squeeze the annular rubber ring 3 to deform and fill the space where the groove 2, the A-groove 8 and the B-groove 10 are located. The anti-deviation bracket 6 set on one side of the inner positioning ring 5 will keep the inner positioning ring 5 stable. When the pressure ring 13 completes the tightening work, the annular rubber ring 3 is fully compressed, and the inner rubber gasket 4 and the outer rubber gasket 11 can achieve effective sealing under the cooperation of the sealing flange 12 and the outer positioning ring 9.

[0047] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An industrial valve with a flange seal, comprising a valve body (1), characterized in that: It also includes an annular rubber ring (3) that is attached to the surface of the valve body (1). An inner positioning ring (5) is connected to one side of the annular rubber ring (3). The inner positioning ring (5) is attached to one side of the valve body (1). An outer positioning ring (9) is also provided on the other side of the annular rubber ring (3). The outer positioning ring (9) and the inner positioning ring (5) are concentric circles. A sealing flange (12) is also provided on one side of the outer positioning ring (9) and the inner positioning ring (5). A pressure ring (13) is provided on one side of the sealing flange (12). The pressure ring (13) is connected to the surface of the annular rubber ring (3).

2. An industrial valve with flange seal according to claim 1, characterized in that: The surface of the valve body (1) is provided with a groove (2), and the groove (2) is semi-circular in shape. The groove (2) is attached to the annular rubber ring (3), and an inner rubber gasket (4) is attached to one side of the valve body (1). The side of the inner rubber gasket (4) away from the valve body (1) is attached to the outer positioning ring (9).

3. An industrial valve with flange seal according to claim 2, characterized in that: The annular rubber ring (3) is fitted and connected to the A-groove (8) on the surface of the inner positioning ring (5). The inner positioning ring (5) is also equipped with an anti-deviation bracket (6) at an equal angle on the side near the valve body (1). The anti-deviation bracket (6) is slidably connected to the insertion hole (7) on the surface of the valve body (1).

4. An industrial valve having a flange seal according to claim 3, characterized in that: The inner diameter of the outer positioning ring (9) is provided with a B-groove (10). The B-groove (10) and the surface of the annular rubber ring (3) are attached together. The B-groove (10) and the A-groove (8) are installed on the side of the annular rubber ring (3) away from the groove (2). The B-groove (10) and the A-groove (8) form a semi-enclosed structure for the annular rubber ring (3). The inner diameter of the outer positioning ring (9) and the outer diameter of the inner positioning ring (5) form an annular space. The width of the annular space matches the pressure ring (13). An outer rubber pad (11) is also attached to one side of the outer positioning ring (9).

5. An industrial valve having a flange seal according to claim 4, characterized in that: The outer rubber gasket (11) on the side away from the outer positioning ring (9) is also in contact with the surface of the sealing flange (12), and the pressure ring (13) is integrally formed on the surface of the sealing flange (12).

6. The industrial valve with flange seal according to claim 5, characterized in that: The pressure ring (13) is in the shape of a circular ring, and the pressure ring (13), the outer positioning ring (9), and the inner positioning ring (5) are slidably connected. The pressure ring (13) extends to the other side of the inner positioning ring (5) and the outer positioning ring (9) and is attached to the surface of the annular rubber ring (3). The surface of the sealing flange (12) is also equipped with bolts (14), and the valve body (1), the inner rubber gasket (4), the outer positioning ring (9), and the sealing flange (12) are connected by the bolts (14).

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