Diaphragm type mud valve

Abstract

The utility model relates to the technical field of mud valves, in particular to a diaphragm type mud valve which comprises a valve body, a supporting ring and a mounting ring. A valve clack used for blocking the outlet in the using state is arranged on the inner side of the valve body. The mounting ring is arranged at the bottom end of the inner side of the valve body and located below the valve clack. The top end of the mounting ring is provided with a sealing gasket which is connected with the valve body and the valve clack and seals the valve body and the valve clack in the using state. The supporting ring is arranged at the outlet of the valve body, located below the mounting ring and connected with the mounting ring. The mounting ring rotates above the supporting ring and is fixed through the bolt, the sealing gasket is fixed to the inner side of the valve body through the mounting ring to seal the valve body and the valve clack, meanwhile, the upper end face of the supporting ring is connected with the lower end face of the mounting ring and supports the mounting ring, the mounting ring is kept stable when stressed, looseness is avoided, and the service life of the valve clack is prolonged. And the sealing effect is durable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of mud discharge valve technology, specifically to a diaphragm-type mud discharge valve. Background Technology

[0002] The diaphragm quick-opening sludge discharge valve, also known as the diaphragm bottom sludge discharge valve, is an angle-shaped shut-off industrial valve used to remove sludge and dirt from the bottom of sedimentation tanks. It is mainly used in sewage treatment plants, waterworks, and chemical industries.

[0003] Chinese patent document CN217108225U discloses a diaphragm-type mud discharge valve, including a valve body and a valve disc. The valve disc is an integral frustum structure with an upper diameter larger than the lower diameter. The inner wall of the valve body outlet end has an inwardly protruding annular structure, and a sealing ring is fixedly connected to the annular structure. Several threaded holes are opened on the side of the annular structure near the outlet end. The upper port of the sealing ring is a conical structure adapted to the valve disc, and the inner diameter of the opening of the upper port of the sealing ring is smaller than the inner diameter of the annular structure. The outer wall of the sealing ring has a flange, and the flange has connecting holes corresponding to the threaded holes one by one, for connecting the sealing ring to the annular structure with screws.

[0004] In the above scheme, the sealing ring is installed in the annular stepped groove by the cooperation of the fixing ring and the screw, so that the valve disc is connected to the sealing ring in the annular structure. However, since the valve body sealing is achieved by the valve disc driving the valve body diaphragm to press the sealing ring, the screw is prone to loosening under force during use, resulting in unstable sealing effect. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a diaphragm-type mud discharge valve.

[0006] The technical solution of this utility model is: a diaphragm-type mud discharge valve, including a valve body, a support ring, and a mounting ring;

[0007] The valve body has a valve disc inside for sealing the outlet during use.

[0008] The mounting ring is located at the bottom inner side of the valve body and below the valve disc. The top of the mounting ring is provided with a sealing gasket that connects to the valve body and the valve disc and seals the valve body and the valve disc during use.

[0009] The support ring is located at the outlet of the valve body and is connected to the mounting ring below it.

[0010] Preferably, the inner side of the support ring is provided with multiple notches arranged at equal angles, and the outer circumference of the mounting ring is provided with connecting blocks, which are arranged in a one-to-one correspondence with the notches, and the size of the connecting blocks is arranged to match the size of the notches.

[0011] Preferably, the top end of the support ring and the inner wall of the valve body form a cavity, and the connecting block is located inside the cavity and is movably connected to the support ring and the valve body.

[0012] Preferably, the outer diameter of the valve disc gradually decreases from the middle of the valve disc toward the bottom of the valve disc along the height direction of the valve body, and the sealing gasket is wrapped around the bottom outer side of the valve disc, with the inner dimension of the sealing gasket matching the bottom dimension of the valve disc.

[0013] Preferably, the bottom outer side of the valve disc is provided with a plurality of first convex rings, and the inner side of the sealing gasket is provided with a plurality of first stepped grooves. When the valve disc and the sealing gasket are installed together, the first convex rings are fitted and accommodated in the first stepped grooves.

[0014] Preferably, a second protruding ring is provided at the top of the sealing gasket and near the inner side, and a connecting groove is provided at the bottom inner side of the valve body. When the sealing gasket and the valve body are installed together, the second protruding ring is fitted and accommodated in the connecting groove.

[0015] Preferably, a second stepped groove is provided at the top of the sealing gasket and on the outside of the second convex ring, and the second stepped groove is fitted and connected to the inner wall of the valve body.

[0016] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0017] This invention achieves a seal by rotating the mounting ring above the support ring and fixing it with bolts. The mounting ring then fixes the sealing gasket to the inside of the valve body, sealing the valve body and valve disc. At the same time, the upper end face of the support ring is connected to the lower end face of the mounting ring and supports it, ensuring that the mounting ring remains stable under stress, preventing loosening, and ensuring a long-lasting and reliable sealing effect. Attached Figure Description

[0018] Figure 1 This is a perspective view of one embodiment of the present invention.

[0019] Figure 2 This is a cross-sectional view of the valve body outlet structure in one embodiment of the present invention.

[0020] Figure 3 In one embodiment of this utility model Figure 2 Schematic diagram of the structure at point A in the middle.

[0021] Figure 4 In one embodiment of this utility model Figure 3 Schematic diagram of the explosion of the middle structure.

[0022] Reference numerals in the attached drawings: 1. Valve body; 2. Valve disc; 3. Support ring; 4. Mounting ring; 5. Notch; 6. First stepped groove; 7. First convex ring; 8. Connecting block; 9. Second stepped groove; 10. Second convex ring; 11. Connecting groove; 12. Sealing gasket; 13. Cavity. Detailed Implementation

[0023] Example 1

[0024] like Figure 1-4 As shown, the present invention proposes a diaphragm-type mud discharge valve, which includes a valve body 1, a support ring 3, and a mounting ring 4.

[0025] The inner side of the valve body 1 is provided with a valve disc 2 for sealing the outlet during use;

[0026] The mounting ring 4 is bolted to the inner bottom of the valve body 1 and located below the valve disc 2. The top of the mounting ring 4 is provided with a sealing gasket 12 that is connected to the valve body 1 and the valve disc 2 and seals the valve body 1 and the valve disc 2 in use.

[0027] The support ring 3 is located at the outlet of the valve body 1 and below the mounting ring 4, and is connected to the mounting ring 4. It is used to support the mounting ring 4 during use, so that the mounting ring 4 is installed firmly and avoids loosening under force.

[0028] In an optional embodiment, the difference between this embodiment and embodiment one is that the inner side of the support ring 3 is provided with a plurality of notches 5 arranged at equal angles, and the outer circular surface of the mounting ring 4 is provided with a connecting block 8. The connecting block 8 is arranged in a one-to-one correspondence with the notch 5, and the size of the connecting block 8 is arranged to match the size of the notch 5. This is used to allow the mounting ring 4 to move from the lower side of the support ring 3 to the upper side of the support ring 3 through the notch on the inner side of the support ring 3 during use, so as to avoid the support ring 3 obstructing the mounting ring 4.

[0029] In an optional embodiment, the top end of the support ring 3 and the inner wall of the valve body 1 form a cavity 13. The connecting block 8 is located inside the cavity 13 and is movably connected to the support ring 3 and the valve body 1. It is used to hold and limit the connecting block 8 during use, and to make the mounting ring 4 drive the connecting block 8 to rotate in the cavity 13, so that the connecting block 8 and the notch 5 are staggered to prevent the support ring 3 from supporting the mounting ring 4, thereby improving the stability of the mounting ring 4.

[0030] In this embodiment, a cavity 13 is formed by the support ring 3 and the inner wall of the valve body 1. The connecting block 8 on the outer circumference of the mounting ring 4 is positioned corresponding to the notch 5 on the inner side of the support ring 3, so that the mounting ring 4 moves the connecting block 8 into the cavity 13, placing the sealing gasket 12 inside the valve body 1. At the same time, the mounting ring 4 is rotated so that the connecting block 8 and the notch 5 are staggered, and the mounting ring 4 is fixed inside the cavity 13 by bolts. This ensures that the sealing gasket 12 is tightly sealed between the valve body 1 and the valve disc 2, and the support ring 3 supports the mounting ring 4 through the connecting block 8, preventing the mounting ring 4 from being loosened by the force. This achieves efficient sealing and stable operation of the mud discharge valve.

[0031] Example 2

[0032] like Figure 2-4 As shown, the present invention proposes a diaphragm-type mud discharge valve. Compared with the first embodiment, the difference is that the outer diameter of the valve disc 2 gradually decreases from the middle of the valve disc 2 toward the bottom of the valve disc 2 along the height direction of the valve body 1. The sealing gasket 12 is wrapped around the bottom outer side of the valve disc 2. The inner dimension of the sealing gasket 12 is arranged to match the bottom dimension of the valve disc 2. This arrangement allows the connection surface between the valve disc 2 and the sealing gasket 12 to be inclined during use, thereby increasing the contact area between the sealing gasket 12 and the valve disc 2 and enhancing the sealing effect.

[0033] In an optional embodiment, a plurality of first protruding rings 7 are provided on the outer side of the bottom end of the valve disc 2, and a plurality of first stepped grooves 6 are provided on the inner side of the sealing gasket 12. When the valve disc 2 and the sealing gasket 12 are installed together, the first protruding rings 7 are fitted and accommodated in the first stepped grooves 6. This is used to further optimize the sealing performance between the valve disc 2 and the sealing gasket 12 through the tight fit between the first stepped grooves 6 and the first protruding rings 7 during use, ensuring that the mud discharge valve can still maintain a good sealing effect under high pressure environment and improve the overall operational stability.

[0034] In this embodiment, the bottom of the valve disc 2 is truncated cone-shaped, and the inner side of the sealing gasket 12 is arranged to match the shape of the valve disc 2, thereby increasing the contact area between the valve disc 2 and the sealing gasket 12 and enhancing the sealing effect. At the same time, by setting the first stepped groove 6 and the first convex ring 7 that are interconnected on the contact surface, the contact surface has a turning point, increasing the complexity of the contact surface, effectively dispersing pressure, preventing sealing failure caused by excessive local stress, and further improving the reliability and service life of the mud discharge valve under complex working conditions.

[0035] Example 3

[0036] like Figure 3-4As shown, the present invention proposes a diaphragm-type mud discharge valve. Compared with the first embodiment, the difference is that a second convex ring 10 is provided at the top of the sealing gasket 12 and near the inner side, and a connecting groove 11 is provided at the bottom inner side of the valve body 1. When the sealing gasket 12 and the valve body 1 are installed together, the second convex ring 10 is accommodated in the connecting groove 11, which increases the connection area between the sealing gasket 12 and the inner wall of the valve body 1 during use, thereby enhancing the sealing effect.

[0037] In an optional embodiment, a second stepped groove 9 is provided at the top of the sealing gasket 12 and outside the second convex ring 10. The second stepped groove 9 is in close contact with the inner wall of the valve body 1 to increase the contact area between the sealing gasket 12 and the inner wall of the valve body 1 during use, thereby further improving the sealing performance between the sealing gasket 12 and the valve body 1.

[0038] In this embodiment, when the sealing gasket 12 is installed inside the valve body 1, the sealing gasket 12 inserts the second convex ring 10 into the connecting groove 11, and makes the second stepped groove 9 tightly fit with the inner wall of the valve body 1, forming a multi-seal structure, which effectively prevents media leakage, ensures the stable operation of the mud discharge valve under high pressure and complex environment, and extends the service life of the equipment.

[0039] In this invention, when the sealing gasket 12 is installed inside the valve body 1, the sealing gasket 12 drives the second convex ring 10 to be inserted into the connecting groove 11, and the second stepped groove 9 is tightly fitted with the inner wall of the valve body 1 to form a multi-seal structure. The connecting block 8 on the outer circumference of the mounting ring 4 is positioned corresponding to the notch 5 on the inner side of the support ring 3, so that the mounting ring 4 drives the connecting block 8 to move through the support ring 3 to the cavity 13 formed by the support ring 3 and the inner wall of the valve body 1. The mounting ring 4 is connected to the lower end face of the sealing gasket 12 and the upper end face of the support ring 3, and the mounting ring 4 is placed in the cavity 13. During rotation, the mounting hole of the mounting ring 4 is placed coaxially with the threaded hole of the valve body 1, and the connecting block 8 and the notch 5 are staggered, so that the bolts fix the mounting ring 4 to the valve body 1. The support ring 3 supports the mounting ring 4 through the connecting block 8, preventing the mounting ring 4 from being loosened by the force. This achieves efficient sealing and stable operation of the mud discharge valve. At the same time, the valve disc 2 is connected to the sealing gasket 12 through the valve body 1, so that the valve disc 2 drives the first convex ring 7 to be placed inside the first stepped groove 6, making the connection between the valve disc 2 and the sealing gasket 12 tighter and further enhancing the sealing performance of the overall structure.

[0040] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A diaphragm-type mud discharge valve, characterized in that, It includes a valve body (1), a support ring (3), and a mounting ring (4); The valve body (1) has a valve disc (2) inside for sealing the outlet in use; The mounting ring (4) is located at the bottom inner side of the valve body (1) and below the valve disc (2). The top of the mounting ring (4) is provided with a sealing gasket (12) that connects to the valve body (1) and the valve disc (2) and seals the valve body (1) and the valve disc (2) in use. The support ring (3) is located at the outlet of the valve body (1) and is connected to the mounting ring (4) below the mounting ring (4).

2. The diaphragm-type mud discharge valve according to claim 1, characterized in that, The inner side of the support ring (3) is provided with multiple notches (5) arranged at equal angles. The outer circular surface of the mounting ring (4) is provided with connecting blocks (8). The connecting blocks (8) and the notches (5) are arranged in a one-to-one correspondence, and the size of the connecting blocks (8) is arranged to match the size of the notches (5).

3. A diaphragm-type mud discharge valve according to claim 2, characterized in that, The top of the support ring (3) and the inner wall of the valve body (1) form a cavity (13), and the connecting block (8) is located inside the cavity (13) and is movably connected to the support ring (3) and the valve body (1).

4. A diaphragm-type mud discharge valve according to claim 1, characterized in that, The outer diameter of the valve disc (2) gradually decreases from the middle of the valve disc (2) toward the bottom of the valve disc (2) along the height direction of the valve body (1). The sealing gasket (12) is wrapped around the bottom outside of the valve disc (2), and the inner dimension of the sealing gasket (12) is arranged to match the bottom dimension of the valve disc (2).

5. A diaphragm-type mud discharge valve according to claim 4, characterized in that, Multiple first protruding rings (7) are provided on the outer side of the bottom end of the valve disc (2), and multiple first stepped grooves (6) are provided on the inner side of the sealing gasket (12). When the valve disc (2) and the sealing gasket (12) are installed together, the first protruding rings (7) are fitted and accommodated in the first stepped grooves (6).

6. A diaphragm-type mud discharge valve according to claim 1, characterized in that, A second protruding ring (10) is provided at the top of the sealing gasket (12) and near the inner side. A connecting groove (11) is provided at the bottom inner side of the valve body (1). When the sealing gasket (12) and the valve body (1) are installed together, the second protruding ring (10) is fitted into the connecting groove (11).

7. A diaphragm-type mud discharge valve according to claim 6, characterized in that, A second stepped groove (9) is provided at the top of the sealing gasket (12) and on the outside of the second convex ring (10), and the second stepped groove (9) is fitted and connected to the inner wall of the valve body (1).

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