Adjustable flat valve

Abstract

The utility model discloses an adjustable flat valve which comprises a lower valve body, an upper valve body is installed at the top end of the lower valve body, a valve cover is fixed at the top end of the upper valve body, rectangular flow channels are arranged in the lower valve body and the upper valve body, a conical seat body is arranged at the center position of the top end of the valve cover, and a threaded cylinder is fixedly installed at the center position of the top end of the conical seat body. Inlet and outlet pipe openings are formed in the outer walls of the two sides of the lower valve body and the upper valve body, external pipelines are installed at the ends, away from the lower valve body and the upper valve body, of the inlet and outlet pipe openings in an inserted mode, the outer walls of the connecting positions of the external pipelines and the inlet and outlet pipe openings are sleeved with rubber sealing rings, and upper hoops are installed on the outer walls of the upper ends of the rubber sealing rings; a lower clamp is installed on the outer wall of the lower end of the rubber sealing ring. According to the flat plate valve, the phenomenon that fluid media leak in the using process of the flat plate valve is reduced, the sealing performance of the flat plate valve is improved, the maintenance convenience of the flat plate valve is improved, and the purpose that the flat plate valve is easy to open and close is achieved.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to an adjustable flat plate valve. Background Technology

[0002] In industrial production, valves are key equipment for controlling fluid flow. Flat plate valves, as a common type of valve, have advantages such as simple structure and good sealing performance, and are therefore widely used in various fluid pipelines.

[0003] According to CN218818260U, an adjustable flat valve includes a body with a groove inside. A valve is slidably connected within the groove. A sealing cover is fixedly connected to the upper end of the body. A threaded rod is threadedly connected to the sealing cover, and a rotating rod is slidably connected within the threaded rod. A turntable is fixedly connected to the upper end of the rotating rod. An adjustment mechanism is provided at the upper end of the sealing cover. The adjustment mechanism includes a support cylinder fixedly connected to the upper end of the sealing cover, a mounting cover fixedly connected to the upper end of the support cylinder, a rotating rod rotatably connected to the mounting cover, and a first gear fixedly connected to the circumferential surface of the rotating rod. A rotating rod is rotatably connected within the mounting cover. The valve has a driven rod, and a second gear is fixedly connected to the circumferential surface of the driven rod. The first gear meshes with the second gear. A pointer is fixedly connected to the circumferential surface of the driven rod. A scale is set on the upper end face of the mounting cover, and the pointer corresponds to the scale. This flat plate valve has a simple structure and can achieve precise flow regulation with simple operation. As can be seen from the above, although this flat plate valve can be well applied, it is usually not convenient to seal the connection area between the medium inlet / outlet and the external pipeline. This makes the fluid medium prone to leakage during the use of the flat plate valve, which often troubles users. Utility Model Content

[0004] The purpose of this utility model is to provide an adjustable flat plate valve to solve the problem mentioned in the background art that although flat plate valves can be used well, they are usually not convenient for sealing the connection area between the medium inlet / outlet and the external pipeline, which makes the fluid medium prone to leakage during the use of the flat plate valve.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable flat plate valve, comprising a lower valve body, an upper valve body mounted on the top of the lower valve body, a valve cover fixed on the top of the upper valve body, rectangular flow channels inside the lower and upper valve bodies, a conical seat at the center of the top of the valve cover, a threaded cylinder fixedly mounted at the center of the top of the conical seat, and inlet and outlet ports on both sides of the outer walls of the lower and upper valve bodies, the inlet and outlet ports being located away from the lower and upper valve bodies. An external pipe is inserted into one end. A rubber sealing ring is fitted on the outer wall of the external pipe at the connection point with the inlet / outlet. An upper clamp is installed on the outer wall of the upper end of the rubber sealing ring, and a lower clamp is installed on the outer wall of the lower end of the rubber sealing ring. One end of the lower clamp is rotatably connected to one end of the upper clamp. A nut seat is fixed on the inner wall of the lower clamp away from the upper clamp. A wing bolt is installed on the upper clamp away from the lower clamp. The bottom end of the wing bolt passes through the upper clamp and is threadedly connected to the nut seat.

[0006] Preferably, a threaded valve stem is installed on the internal thread of the threaded cylinder. The top end of the threaded valve stem extends to the outside of the threaded cylinder, and the bottom end extends to the inside of the conical seat. The threaded valve stem rotates and slides up and down inside the threaded cylinder to drive the valve plate to perform lifting and lowering operations.

[0007] Preferably, a connecting rod is fixedly installed at the bottom end of the threaded valve stem, and the bottom end of the connecting rod extends into the interior of the upper valve body and is provided with a valve plate. The bottom end of the valve plate extends into the interior of the rectangular flow channel. The valve plate is provided to open and close the rectangular flow channel.

[0008] Preferably, a valve handle is installed on the outer wall of the upper end of the threaded valve stem, and a disc is installed on the outer wall of the threaded cylinder below the valve handle. The top end of the disc contacts the bottom end of the valve handle, and the threaded valve stem is driven to rotate by rotating the valve handle.

[0009] Preferably, locking bolts are installed at the corner positions at the top of the valve cover. The bottom end of the locking bolt passes through the upper valve body and the lower valve body and is threaded with a hexagonal nut. The upper valve body and the lower valve body can be disassembled by unscrewing the hexagonal nut off the outer wall of the locking bolt.

[0010] Preferably, a rubber washer is fitted on the outer wall of the locking bolt above the hexagonal nut, and the top of the rubber washer contacts the bottom of the lower valve body. The rubber washer reduces the risk of the hexagonal nut detaching from the outer wall of the locking bolt.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the adjustable flat plate valve not only reduces the leakage of fluid medium during the use of the flat plate valve, thereby improving the sealing performance of the flat plate valve, but also improves the convenience of maintenance of the flat plate valve, and achieves the purpose of easy opening and closing of the flat plate valve.

[0012] (1) By fitting the rubber sealing ring onto the outer wall of the inlet / outlet pipe and the connection point of the external pipe, and then fitting the upper and lower clamps onto the outer wall of the rubber sealing ring, and then turning the wing bolt so that one end of the wing bolt passes through the upper clamp and is screwed into the nut seat, the rubber sealing ring is firmly locked and placed on the outer wall of the inlet / outlet pipe and the connection point of the external pipe, thereby reducing the leakage of fluid medium during the use of the flat plate valve and improving the sealing performance of the flat plate valve.

[0013] (2) By turning the hexagonal nut away from the outer wall of the locking bolt, and then pulling the upper valve body upward, the upper valve body can be removed from the top of the lower valve body to achieve the purpose of disassembling the flat valve, thereby improving the convenience of flat valve maintenance.

[0014] (3) By rotating the valve handle, the threaded valve stem is rotated inside the threaded cylinder and slides up and down, so that the threaded valve stem drives the valve plate to move up and down via the connecting rod. When the valve plate moves down and abuts against the groove at the bottom of the lower valve body, the flat valve can be closed. When the valve plate moves up to the inside of the conical seat, the flat valve can be opened and closed, thus achieving the purpose of easy opening and closing of the flat valve. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a frontal cross-sectional view of the present invention.

[0017] Figure 3 This is a side view diagram of the inlet / outlet pipe and the external pipe of this utility model;

[0018] Figure 4 This is a top view of the lower clamp and upper clamp of this utility model.

[0019] In the diagram: 1. Lower valve body; 2. Upper valve body; 3. Valve cover; 4. Conical seat; 5. Threaded cylinder; 6. Disc; 7. Valve handle; 8. Locking bolt; 9. Hex nut; 10. Rubber washer; 11. Inlet / outlet ports; 12. External pipe; 13. Lower clamp; 14. Upper clamp; 15. Wing bolt; 16. Threaded valve stem; 17. Connecting rod; 18. Valve plate; 19. Rectangular flow channel; 20. Nut seat; 21. Rubber sealing ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the 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 scope of protection of the present utility model.

[0021] Please see Figure 1-4 An embodiment of this utility model is provided: an adjustable flat plate valve, including a lower valve body 1, an upper valve body 2 installed at the top of the lower valve body 1, a valve cover 3 fixed at the top of the upper valve body 2, and locking bolts 8 installed at the corners of the top of the valve cover 3. The bottom end of the locking bolts 8 passes through the upper valve body 2 and the lower valve body 1 and is threaded with a hexagonal nut 9.

[0022] In use, the upper valve body 2 and the lower valve body 1 can be disassembled by unscrewing the hexagonal nut 9 from the outer wall of the locking bolt 8;

[0023] A rubber washer 10 is fitted on the outer wall of the locking bolt 8 above the hexagonal nut 9, and the top of the rubber washer 10 contacts the bottom of the lower valve body 1.

[0024] In use, the rubber washer 10 is used to reduce the hexagonal nut 9 from disengaging from the outer wall of the locking bolt 8;

[0025] The lower valve body 1 and the upper valve body 2 are provided with rectangular flow channels 19. A conical seat 4 is provided at the center of the top of the valve cover 3. A threaded cylinder 5 is fixedly installed at the center of the top of the conical seat 4. A threaded valve stem 16 is installed inside the threaded cylinder 5. The top of the threaded valve stem 16 extends to the outside of the threaded cylinder 5, and the bottom of the threaded valve stem 16 extends to the inside of the conical seat 4.

[0026] In use, the threaded valve stem 16 rotates and slides up and down inside the threaded cylinder 5 to drive the valve plate 18 to perform lifting and lowering operations.

[0027] A connecting rod 17 is fixedly installed at the bottom end of the threaded valve stem 16. The bottom end of the connecting rod 17 extends into the interior of the upper valve body 2 and is provided with a valve plate 18. The bottom end of the valve plate 18 extends into the interior of the rectangular flow channel 19.

[0028] In use, the valve plate 18 is set to open and close the rectangular flow channel 19.

[0029] A valve handle 7 is installed on the outer wall of the upper end of the threaded valve stem 16, and a disc 6 is installed on the outer wall of the threaded cylinder 5 below the valve handle 7. The top of the disc 6 touches the bottom of the valve handle 7.

[0030] In use, the valve handle 7 is rotated to drive the threaded valve stem 16 to rotate.

[0031] Both the lower valve body 1 and the upper valve body 2 have inlet and outlet ports 11 on their outer walls. An external pipe 12 is inserted into the end of the inlet and outlet port 11 away from the lower valve body 1 and the upper valve body 2. A rubber sealing ring 21 is fitted on the outer wall at the connection position between the external pipe 12 and the inlet and outlet port 11. An upper clamp 14 is installed on the outer wall at the upper end of the rubber sealing ring 21. A lower clamp 13 is installed on the outer wall at the lower end of the rubber sealing ring 21. One end of the lower clamp 13 is rotatably connected to one end of the upper clamp 14. A nut seat 20 is fixed on the inner wall at the end of the lower clamp 13 away from the upper clamp 14. A wing bolt 15 is installed at the end of the upper clamp 14 away from the lower clamp 13. The bottom end of the wing bolt 15 passes through the upper clamp 14 and is threadedly connected to the nut seat 20.

[0032] In this embodiment, the valve handle 7 is first rotated to cause the threaded valve stem 16 to rotate and slide up and down inside the threaded cylinder 5. This causes the threaded valve stem 16 to move the valve plate 18 up and down via the connecting rod 17. When the valve plate 18 moves down and abuts against the groove at the bottom of the lower valve body 1, the flat valve can be closed. When the valve plate 18 moves up to the inside of the conical seat 4, the flat valve can be opened. Furthermore, when the bottom end of the valve handle 7 abuts against the top end of the disc 6, it indicates that the bottom of the valve plate 18 has abutted against the groove at the bottom of the lower valve body 1, thus the flat valve is in a closed state. Because the conical seat 4 has a conical structure, the groove inside the conical seat 4 is narrower at the top and wider at the bottom. When the upper end of the valve plate 18 moves up into the groove inside the conical seat 4, it can pass through this groove... The upward movement of the valve plate 18 is limited. Then, the rubber sealing ring 21 is fitted onto the outer wall of the connection between the inlet / outlet port 11 and the external pipe 12. Next, the upper clamp 14 and the lower clamp 13 are fitted onto the outer wall of the rubber sealing ring 21. Then, the wing bolt 15 is turned so that one end of the wing bolt 15 passes through the upper clamp 14 and is screwed into the nut seat 20, so that the rubber sealing ring 21 is firmly locked onto the outer wall of the connection between the inlet / outlet port 11 and the external pipe 12, which can effectively improve the sealing performance of the flat valve. Finally, the hexagonal nut 9 is turned away from the outer wall of the locking bolt 8, and then the upper valve body 2 is pulled upward to remove the upper valve body 2 from the top of the lower valve body 1, so as to achieve the purpose of disassembling and maintaining the flat valve, thereby completing the use of the flat valve.

Claims

1. An adjustable flat plate valve, characterized in that: The system includes a lower valve body (1), an upper valve body (2) mounted on the top of the lower valve body (1), a valve cover (3) fixed on the top of the upper valve body (2), rectangular flow channels (19) provided inside the lower valve body (1) and the upper valve body (2), a conical seat (4) provided at the center of the top of the valve cover (3), a threaded cylinder (5) fixedly mounted at the center of the top of the conical seat (4), inlet and outlet ports (11) provided on the outer walls on both sides of the lower valve body (1) and the upper valve body (2), and an external pipe (12) inserted into the end of the inlet and outlet port (11) away from the lower valve body (1) and the upper valve body (2). A rubber sealing ring (21) is fitted on the outer wall at the connection position with the inlet / outlet pipe (11). An upper clamp (14) is installed on the outer wall at the upper end of the rubber sealing ring (21), and a lower clamp (13) is installed on the outer wall at the lower end of the rubber sealing ring (21). One end of the lower clamp (13) is rotatably connected to one end of the upper clamp (14). A nut seat (20) is fixed on the inner wall of the lower clamp (13) away from the upper clamp (14). A wing bolt (15) is installed on the end of the upper clamp (14) away from the lower clamp (13). The bottom end of the wing bolt (15) passes through the upper clamp (14) and is threadedly connected to the nut seat (20).

2. The adjustable flat plate valve according to claim 1, characterized in that: The threaded cylinder (5) is internally threaded with a threaded valve stem (16), the top end of which extends to the outside of the threaded cylinder (5) and the bottom end of which extends to the inside of the conical seat (4).

3. An adjustable flat plate valve according to claim 2, characterized in that: A connecting rod (17) is fixedly installed at the bottom end of the threaded valve stem (16). The bottom end of the connecting rod (17) extends into the interior of the upper valve body (2) and is provided with a valve plate (18). The bottom end of the valve plate (18) extends into the interior of the rectangular flow channel (19).

4. An adjustable flat plate valve according to claim 2, characterized in that: A valve handle (7) is installed on the outer wall of the upper end of the threaded valve stem (16), and a disc (6) is installed on the outer wall of the threaded cylinder (5) below the valve handle (7). The top of the disc (6) touches the bottom of the valve handle (7).

5. An adjustable flat plate valve according to claim 1, characterized in that: Locking bolts (8) are installed at the corners of the top of the valve cover (3). The bottom end of the locking bolts (8) passes through the upper valve body (2) and the lower valve body (1) and is threaded with a hexagonal nut (9).

6. An adjustable flat plate valve according to claim 5, characterized in that: A rubber washer (10) is fitted on the outer wall of the locking bolt (8) above the hexagonal nut (9), and the top of the rubber washer (10) touches the bottom of the lower valve body (1).

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