Hydro-pneumatic control discharge valve

Abstract

The utility model relates to water conservancy control valve technical field, concretely relates to a water conservancy pneumatic control discharge valve, including discharge valve casing and detachable setting drive mounting casing at the top of discharge valve casing, drive mounting casing periphery is folded down and forms the flanging, the top of discharge valve casing is provided with the locating block, the top of locating block and drive mounting casing bottom end resist the contact, the outer surface of locating block and flanging inner wall resist the contact, the top of discharge valve casing and flanging bottom end resist the contact, drive mounting casing bottom end is provided with first sealing groove, and first sealing groove inside is provided with first sealing ring, the outer surface of locating block is provided with second sealing groove, and second sealing groove inside is provided with second sealing ring, the top of discharge valve casing is located at the bottom of flanging, and the third sealing groove is seted up, and third sealing groove inside is provided with third sealing ring, the utility model makes the sealing performance of discharge valve casing and drive mounting casing's junction better, and the liquid seepage phenomenon will not appear.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic control valve technology, specifically a hydraulic pneumatic control discharge valve. Background Technology

[0002] In water treatment within the water conservancy sector, sedimentation tanks accumulate a significant amount of silt and impurities at the bottom after prolonged use. This silt needs to be discharged via a pneumatic sludge discharge valve, an angle-type shut-off industrial valve powered by either hydraulic or pneumatic actuators. This valve employs a diaphragm-type transmission mechanism and an angle-shaped flow channel design. The pneumatic angle-type sludge discharge valve consists of a valve body and a pneumatic mounting housing. Therefore, the connection between the valve body and the pneumatic mounting housing requires excellent sealing to prevent leakage. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a hydraulic pneumatic control discharge valve that addresses the above-mentioned defects, thereby improving the sealing performance at the connection between the discharge valve housing and the drive mounting housing and preventing leakage.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: A hydraulic pneumatic control discharge valve includes a discharge valve housing and a drive mounting housing detachably disposed at the top of the discharge valve housing. The drive mounting housing has a flange formed by folding down the periphery. A positioning block is provided at the top of the discharge valve housing. The top of the positioning block abuts against the bottom of the drive mounting housing. The outer surface of the positioning block abuts against the inner wall of the flange. The top of the discharge valve housing abuts against the bottom of the flange. A first sealing groove is provided at the bottom of the drive mounting housing. A first sealing ring is provided inside the first sealing groove. A second sealing groove is provided on the outer surface of the positioning block. A second sealing ring is provided inside the second sealing groove. A third sealing groove is provided at the periphery of the top of the discharge valve housing, located at the bottom of the flange. A third sealing ring is provided inside the third sealing groove.

[0005] Furthermore, a sewage inlet pipe is provided on one side of the discharge valve housing, a sewage outlet pipe is provided at the bottom of the discharge valve, a plug valve is provided at the connection between the sewage outlet pipe and the discharge valve body, a guide slope is provided on the inner wall of the connection between the sewage outlet pipe and the discharge valve body, and a sealing slope matching the guide slope is provided at the bottom of the plug valve.

[0006] Furthermore, the sealing slope has a tapered structure that gradually narrows from top to bottom.

[0007] Furthermore, a driving component is slidably disposed inside the drive mounting housing. A connecting rod is disposed at the bottom end of the driving component. The bottom end of the connecting rod passes through the drive mounting housing, the positioning block, and the discharge valve housing, and is fixedly connected to the top end of the plug valve. An inflation assembly is disposed on the drive mounting housing. The inflation assembly is connected to the interior of the drive mounting housing below and above the driving component through pipelines.

[0008] Furthermore, the inner wall of the flange and the bottom end of the drive mounting housing form a receiving groove that matches the positioning block. The outer diameter of the positioning block is smaller than the outer diameter of the top end of the discharge valve housing. The discharge valve housing and the drive mounting housing are fixedly connected by bolts.

[0009] The beneficial effects of this utility model are: This utility model utilizes a combination of a flange, a positioning block, a first sealing groove, a first sealing ring, a second sealing groove, a second sealing ring, a third sealing groove, and a third sealing ring. The flange and positioning block engage with the bottom of the drive mounting housing and the top of the discharge valve housing, creating a labyrinthine connection with multiple bends from the inside out. The first sealing groove, first sealing ring, second sealing groove, second sealing ring, third sealing groove, and third sealing ring form multiple seals, resulting in better sealing performance at the connection between the drive mounting housing and the discharge valve housing, preventing leakage. Attached Figure Description

[0010] The foregoing and other objects, features and advantages of this utility model will become apparent from the following detailed description taken in conjunction with the accompanying drawings.

[0011] Figure 1 This is a front sectional view of the present invention.

[0012] Figure 2 This is a schematic diagram of the structure of the positioning block and the flange of this utility model.

[0013] The components include: 1. Discharge valve housing; 2. Drive mounting housing; 3. Flanged edge; 301. Receiving groove; 4. Positioning block; 501. First sealing groove; 502. First sealing ring; 601. Second sealing groove; 602. Second sealing ring; 701. Third sealing groove; 702. Third sealing ring; 8. Inlet pipe; 9. Drain pipe; 10. Plug valve; 11. Guide slope; 12. Plug slope; 13. Drive component; 14. Connecting rod; 15. Inflation assembly. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Reference Figure 1-2As shown, a hydraulic pneumatic control discharge valve includes a discharge valve housing 1 and a drive mounting housing 2 detachably mounted on the top of the discharge valve housing 1. The drive mounting housing 2 has a flange 3 formed by folding down its periphery. A positioning block 4 is provided on the top of the discharge valve housing 1. The top of the positioning block 4 abuts against the bottom of the drive mounting housing 2, and the outer surface of the positioning block 4 abuts against the inner wall of the flange 3. The top of the discharge valve housing 1 abuts against the bottom of the flange 3. The positioning block 4, the flange 3, the bottom of the drive mounting housing 2, and the top of the discharge valve housing 1 cooperate to form a labyrinthine connection with multiple bends from the inside to the outside, thereby improving the sealing performance of the connection and preventing leakage. A first sealing groove 501 is provided on the bottom of the drive mounting housing 2, and a first sealing ring 502 is provided inside the first sealing groove 501. The first sealing groove 501 forms a seal on the inner side of the connection between the positioning block 4 and the drive mounting housing 2. The outer surface of the positioning block 4 is provided with a second sealing groove 601, and the second sealing ring 602 is provided inside the second sealing groove 601. The second sealing groove 601 and the second sealing ring 602 form a seal on the connection between the positioning block 4 and the flange 3. At the periphery of the top of the discharge valve housing 1, located at the bottom end of the flange 3, a third sealing groove 701 is provided. The third sealing groove 701 is provided inside the third sealing ring 702. The third sealing groove 701 and the third sealing ring 702 form a seal on the connection between the flange 3 and the drive mounting housing 2, so that the connection between the drive mounting housing 2 and the discharge valve housing 1 forms multiple seals from the inside to the outside, which cooperates with the labyrinth-type connection to make the sealing performance of the connection better and prevent leakage.

[0016] A sludge inlet pipe 8 is provided on one side of the discharge valve housing 1, and a sludge outlet pipe 9 is provided at the bottom of the discharge valve housing 1. Sludge enters the interior of the discharge valve housing 1 through the sludge inlet pipe 8 and is then discharged through the sludge outlet pipe 9. A plug valve 10 is provided at the connection between the sludge outlet pipe 9 and the discharge valve housing 1. The plug valve 10 keeps the sludge outlet pipe 9 in an open or closed state. A guide slope 11 is provided on the inner wall of the connection between the sludge outlet pipe 9 and the discharge valve housing 1. A sealing slope 12 matching the guide slope 11 is provided at the bottom of the plug valve 10. The sealing slope 12 has a tapered structure that gradually narrows from top to bottom. Its inclined contact surface makes the connection between the plug valve 10 and the connection between the sludge outlet pipe 9 and the discharge valve housing 1 more tight and the sealing effect is better.

[0017] A drive component 13 is slidably installed inside the drive mounting housing 2. A connecting rod 14 is provided at the bottom of the drive component 13. The bottom end of the connecting rod 14 passes through the drive mounting housing 2, the positioning block 4, and the discharge valve housing 1, and is fixedly connected to the top of the plug valve 10. An inflation assembly 15 is provided on the drive mounting housing 2. The inflation assembly 15 is connected to the interior of the drive mounting housing 2 below and above the drive component 13 through pipelines. The inflation assembly 15 sequentially injects compressed air into different areas inside the drive mounting housing 2 to push the drive component 13 to move up and down. When sludge needs to be discharged, compressed air is injected into the bottom end of the drive component 13 to drive the drive component 13 to move upward. Then the connecting rod 14 and the plug valve 10 move upward together, so that the sewage pipe 9 is in an open state. When the sewage pipe 9 needs to be closed, compressed air is sent into the top of the drive component 13 to drive the drive component 13 to move downward. Then the connecting rod 14 and the plug valve 10 move downward to block the sewage pipe 9.

[0018] The inner wall of the flange 3 and the bottom end of the drive mounting housing 2 form a receiving groove 301 that matches the positioning block 4. The positioning block 4 is located inside the receiving groove 301. The outer diameter of the positioning block 4 is smaller than the outer diameter of the top of the discharge valve housing 1. The discharge valve housing 1 and the drive mounting housing 2 are fixedly connected by bolts. The bolts are arranged in a ring on the drive mounting housing 2.

[0019] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A hydraulic pneumatic control discharge valve, comprising a discharge valve housing (1) and a drive mounting housing (2) detachably disposed at the top of the discharge valve housing (1), characterized in that: The drive mounting housing (2) has a flange (3) formed by folding down the periphery. The top of the discharge valve housing (1) is provided with a positioning block (4). The top of the positioning block (4) abuts against the bottom of the drive mounting housing (2). The outer surface of the positioning block (4) abuts against the inner wall of the flange (3). The top of the discharge valve housing (1) abuts against the bottom of the flange (3). The bottom of the drive mounting housing (2) is provided with a first sealing groove (501). A first sealing ring (502) is provided inside the first sealing groove (501). The outer surface of the positioning block (4) is provided with a second sealing groove (601). A second sealing ring (602) is provided inside the second sealing groove (601). At the periphery of the top of the discharge valve housing (1), at the bottom of the flange (3), a third sealing groove (701) is provided. A third sealing ring (702) is provided inside the third sealing groove (701).

2. The hydraulic pneumatic control discharge valve according to claim 1, characterized in that: A sewage inlet pipe (8) is provided on one side of the discharge valve housing (1), a sewage outlet pipe (9) is provided at the bottom of the discharge valve housing (1), a plug valve (10) is provided at the connection between the sewage outlet pipe (9) and the discharge valve housing (1), a guide slope (11) is provided on the inner wall of the connection between the sewage outlet pipe (9) and the discharge valve housing (1), and a sealing slope (12) matching the guide slope (11) is provided at the bottom of the plug valve (10).

3. A hydraulic pneumatic control discharge valve according to claim 2, characterized in that: The sealing slope (12) has a tapered structure that gradually decreases in size from top to bottom.

4. A hydraulic pneumatic control discharge valve according to claim 1, characterized in that: The drive mounting housing (2) is slidably provided with a drive component (13). The bottom end of the drive component (13) is provided with a connecting rod (14). The bottom end of the connecting rod (14) passes through the drive mounting housing (2), the positioning block (4), and the discharge valve housing (1), and is fixedly connected to the top end of the plug valve (10). The drive mounting housing (2) is provided with an inflation assembly (15). The inflation assembly (15) is connected to the inside of the drive mounting housing (2) below and above the drive component (13) through pipelines.

5. A hydraulic pneumatic control discharge valve according to claim 1, characterized in that: The inner wall of the flange (3) and the bottom end of the drive mounting housing (2) form a receiving groove (301) that matches the positioning block (4). The outer diameter of the positioning block (4) is smaller than the outer diameter of the top of the discharge valve housing (1). The discharge valve housing (1) and the drive mounting housing (2) are fixedly connected by bolts.

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