Heavy hammer high-pressure check valve

Abstract

The utility model discloses a heavy hammer high-pressure check valve which comprises an outer shell, one side of the interior of the outer shell is fixedly connected with a check seat, one side of the interior of the outer shell is rotatably provided with a rotating rod, one end of the rotating rod is fixedly provided with a G-shaped rod through a cylinder, one side of the G-shaped rod is provided with a sealing clack and a clack cover through a sixth screw in a threaded mode, and the other side of the G-shaped rod is provided with a piston. The sealing petal is connected to the surface of one side of the non-return base in a pressing mode, a second cover is installed at one end of the rotating rod through a fifth screw in a threaded mode, graphite packing is fixedly filled in one side of the second cover, sealing packing is arranged at one end of the rotating rod, and a flat ring and a heavy hammer handle are installed at one end of the rotating rod through a third nut. The two sides of one end of the heavy hammer handle are provided with a first heavy hammer and a second heavy hammer in a threaded mode through a fourth screw and a second nut, split installation and positioning can be achieved, adjustment and control from the outside of the outer shell are facilitated, accuracy and high efficiency are achieved, positioning and non-return are facilitated, and installation and use are convenient.

Description

Technical Field

[0001] This utility model relates to the field of check valves, and more specifically, to a high-pressure check valve with a counterweight. Background Technology

[0002] Currently, check valves are prone to destructive deformation of the valve body and vanes under high pressure. Furthermore, under high operating pressure, the valves may experience the following problems: 1. Grease and air leakage is likely to occur between the shaft and bearing cap; 2. The oil injection port may fail under high pressure, leading to grease and air leakage; 3. Air leakage is likely to occur between the valve top plate and the valve body seal. These problems can cause valve failure, severely affecting the normal operation of the system and even causing accidents.

[0003] Application publication number CN106523745A discloses a low-leakage high-pressure check valve, including a valve body and a top plate. The valve body and the top plate are connected to form a cavity, which includes an inlet cavity and an outlet cavity that are interconnected. The valve body is provided with two opposing bearing seats, and bearings are installed on the two bearing seats. A rotating shaft is fixed to the bearing, and a bearing cover is installed on the bearing. A valve plate is fixedly installed on the rotating shaft. The valve plate is located in the valve body and is used to block the inlet cavity and the outlet cavity. A first sealing structure is provided between the valve body and the top plate. The first sealing structure includes a valve body groove and a top plate groove provided at the connection between the valve body and the top plate, and a sealing rubber provided at the connection between the valve body and the top plate. The sealing rubber is partially embedded in the valve body groove and the top plate groove.

[0004] The valve body structure used in the above-disclosed structure is not only unfavorable for assembly and installation, but also cannot achieve check flow by adjusting with a counterweight, affecting accuracy and stability, and needs to be improved. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a high-pressure check valve with a counterweight. The valve connects to the sealing flap via a check seat inside the outer shell and is combined with a rotating rod to install a G-shaped rod. This allows for modular installation, facilitating tight sealing for check valve operation. Furthermore, the counterweight handle is installed via the rotating rod, connecting the first and second counterweights. This allows for separate installation and positioning, enabling adjustment and control from outside the outer shell. It is precise, efficient, and facilitates check valve positioning, making installation and use convenient.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A high-pressure check valve with a counterweight includes an outer shell. A check seat is fixedly connected to one side of the inner shell. A rotating rod is rotatably mounted on one side of the inner shell. A G-shaped rod is fixedly mounted on one end of the rotating rod via a cylinder. A sealing flap and a flap cover are threaded onto one side of the G-shaped rod via a sixth screw thread. The sealing flap is pressed against one side surface of the check seat. A second cover is threaded onto one end of the rotating rod via a fifth screw thread. Graphite packing is fixedly filled on one side of the second cover. Sealing packing is provided at one end of the rotating rod. A flat ring and a counterweight handle are threaded onto one end of the rotating rod via a third nut. A first counterweight and a second counterweight are threaded onto both sides of one end of the counterweight handle via a fourth screw and a second nut thread. A G-shaped ring is threaded onto the counterweight handle via a third screw thread.

[0008] Furthermore, one end of the outer casing is provided with a connection port, and a connection cover is fixedly installed on one side of the connection port.

[0009] Furthermore, the surface of the connecting cover is fitted with a double stud, and the two ends of the double stud are threaded with a first nut.

[0010] Furthermore, a graphite sheet is fixedly connected to the inner side of the connecting cover. The graphite sheet is pressed and connected to one side of the connecting port. The connecting cover is installed through the connecting port. Combined with the double studs, the first nut and the graphite sheet can be installed and positioned in combination, which is conducive to pressing and sealing, convenient for separate installation, and avoids interference.

[0011] Furthermore, a first cover is provided on one side of the connecting cover, and a lifting ring is threaded onto one side of the first cover.

[0012] Furthermore, one end of the rotating rod is provided with an indicator frame, and an indicator sign is fixedly connected to one side of the indicator frame.

[0013] Furthermore, the indicator is located on the outer surface of the housing. The indicator is connected to the indicator frame and can be assembled in combination. This facilitates the indication of the flip angle and the viewing of the stop-return status, making it highly adaptable.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This solution connects the sealing flap through the check seat inside the outer shell and installs the G-type rod with the rotating rod. It can be installed in combination, which is conducive to pressing and sealing to check the return. The hammer handle is installed through the rotating rod, thereby connecting the first hammer and the second hammer. It can be installed separately for positioning, which is conducive to adjustment and control from the outside of the outer shell. It is precise and efficient, conducive to positioning and checking the return, and convenient for installation and use.

[0016] (2) Install the connecting cover through the connection port, and install the first nut and graphite sheet together with the double studs. This allows for combined installation and positioning, which is conducive to compression and sealing, and facilitates separate installation to avoid interference.

[0017] (3) The indicator frame connects to the indicator sign, which can be combined and installed. It is convenient to indicate the flip angle and to view the stop state. It is highly adaptable. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a top view of the present invention, including a cross-sectional view.

[0020] Figure 3 This is a structural diagram illustrating the improved connection between the G-type rod and the sealing flap of this utility model.

[0021] Figure 4 For the present utility model Figure 2 Enlarged diagram of the AA structure connected to the central sign.

[0022] Explanation of the labels in the diagram:

[0023] 1. Outer shell, 2. Check seat, 3. Sealing flap, 4. Flange cover, 5. G-ring, 6. Rotating rod, 7. First cover, 8. Second cover, 9. Packing, 10. Complete set, 11. First counterweight, 12. Second counterweight, 13. Counterweight handle, 14. Indicator frame, 15. Indicator sign, 16. First nut, 17. Double studs, 18. Lifting eye, 19. Connecting port, 20. Connecting cover, 21. Second screw, 22. Third screw, 23. G-ring, 24. Fourth screw, 25. Second nut, 26. Third nut, 27. Flat ring, 28. Fifth screw, 29. Sixth screw, 30. Cylinder, 31. Graphite sheet, 32. Graphite packing. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 , Figure 2 and Figure 3The high-pressure check valve with a counterweight includes a housing 1. A check seat 2 is fixedly connected to one side of the housing 1. A rotating rod 6 is rotatably mounted on one side of the housing 1. A G-shaped rod 5 is fixedly mounted on one end of the rotating rod 6 via a cylinder 10. A sealing flap 3 and a flap cover 4 are threaded onto one side of the G-shaped rod 5 via a sixth screw 29. The sealing flap 3 is pressed tightly against one side surface of the check seat 2. A second cover 8 is threaded onto one end of the rotating rod 6 via a fifth screw 28. Graphite packing 32 is fixedly filled on one side of the second cover 8. A sealing packing 9 is provided at one end of the rotating rod 6. A flat ring 27 and a counterweight handle are mounted on one end of the rotating rod 6 via a third nut 26. 13. The first hammer 11 and the second hammer 12 are threaded onto both sides of one end of the hammer handle 13 via the fourth screw 24 and the second nut 25. The G-ring 23 is threaded onto the hammer handle 13 via the third screw 22. The hammer handle 13 is connected to the first hammer 11 and the second hammer 12 to form a counterweight structure. The outer shell 1 rotates under gravity, which in turn rotates the rotating rod 6. This causes the G-ring 5 and the sealing flap 3 inside the outer shell 1 to rotate, ensuring that they are pressed against the check seat 2 for sealing and backflow prevention. Water flow can open the sealing flap 2 to allow water to pass through, making it easy to adjust and use, convenient to install and use, and highly adaptable.

[0026] Please see Figure 2 and Figure 3 One end of the outer casing 1 is provided with a connection port 19. A connection cover 20 is fixedly installed on one side of the connection port 19. A double stud 17 is installed on the surface of the connection cover 20. A first nut 16 is threaded on both ends of the double stud 17. A graphite sheet 31 is fixedly connected to the inner side of the connection cover 20. The graphite sheet 31 is pressed and connected to one side of the connection port 19. The connection cover is installed through the connection port. The first nut and graphite sheet are installed together with the double studs. The assembly and positioning can be combined, which is conducive to compression and sealing, and facilitates separate installation to avoid interference.

[0027] Please see Figure 1 and Figure 4 A first cover 7 is provided on one side of the connecting cover 20. A lifting ring 18 is threaded on one side of the first cover 7. An indicator frame 14 is provided at one end of the rotating rod 6. An indicator sign 15 is fixedly connected to one side of the indicator frame 14. The indicator sign 15 is located on the outer surface of the outer shell 1. The indicator sign is connected to the indicator frame, and can be installed in combination. This is convenient for indicating the flip angle and for viewing the anti-return status, and has high adaptability.

[0028] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A heavy hammer high-pressure check valve, comprising an outer shell (1), one side of the inside of the outer shell (1) is fixedly connected with a check seat (2), characterized in that: The inside one side of the shell body (1) is rotatably installed with a rotating rod (6), one end of the rotating rod (6) is fixedly installed with a G-shaped rod (5) through a cylinder (10), one side of the G-shaped rod (5) is threadedly installed with a sealing flap (3) and a flap cover (4) through a sixth screw rod (29), the sealing flap (3) is tightly connected to the side surface of a check seat (2), one end of the rotating rod (6) is threadedly installed with a second cover (8) through a fifth screw rod (28), one side of the second cover (8) is fixedly filled with a graphite packing (32), one end of the rotating rod (6) is provided with a sealing packing (9), one end of the rotating rod (6) is installed with a flat ring (27) and a weight handle (13) through a third nut (26), one end of the weight handle (13) is threadedly installed with a first weight (11) and a second weight (12) through a fourth screw rod (24) and a second nut (25) on both sides, the weight handle (13) is threadedly installed with a G-shaped ring (23) through a third screw rod (22).

2. The heavy-hammer high-pressure check valve according to claim 1, characterized in that: One end of the shell body (1) is provided with a connecting port (19), one side of the connecting port (19) is fixedly installed with a connecting cover (20).

3. The heavy-hammer high-pressure check valve according to claim 2, characterized in that: The surface of the connecting cover (20) is installed with a double stud (17), the two ends of the double stud (17) are threadedly installed with a first nut (16).

4. The heavy-hammer high-pressure check valve according to claim 2, characterized in that: The inner side of the connecting cover (20) is fixedly connected with a graphite sheet (31), the graphite sheet (31) is tightly connected to one side of the connecting port (19).

5. The heavy-hammer high-pressure check valve according to claim 2, characterized in that: One side of the connecting cover (20) is provided with a first cover (7), one side of the first cover (7) is threadedly installed with an eye ring (18).

6. The heavy-hammer high-pressure check valve according to claim 1, characterized in that: One end of the rotating rod (6) is provided with an indicating frame (14), one side of the indicating frame (14) is fixedly connected with an indicating board (15).

7. The heavy-hammer high-pressure check valve according to claim 6, characterized in that: The indicating board (15) is located at the outer surface position of the shell body (1).

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