Valve body valve plate structure

Abstract

This application relates to a valve body and valve plate structure, belonging to the field of valve plate technology. It includes a valve seat integrally connected to the valve body, and a sealing valve cover plate adapted to seal above the valve seat. The sealing valve cover plate has multiple telescopic rods connected to the valve body. An adjusting screw is rotatably mounted at the upper center of the sealing valve cover plate. The external thread of the adjusting screw is connected to a threaded seat integrally connected to the valve body. A flexible annular rubber sheet is provided on the upper outer ring wall of the sealing valve cover plate. The other end of the flexible annular rubber sheet has a sealing ring seat that fits against the upper surface of the valve seat. A strip-shaped limiting hole is provided on the adjusting screw. This valve body and valve plate structure causes the sealing ring seat to move downwards and fit tightly against the valve seat for sealing. The flexible annular rubber sheet extends synchronously to form a sealing system with the sealing valve cover plate. Compared with existing technologies, this achieves rapid emergency sealing, facilitates the closure of the main valve after cutting off the flowing medium, and enables disassembly and maintenance work after flow interruption.

Description

Technical Field

[0001] This utility model relates to the field of valve plate technology, specifically a valve body and valve plate structure. Background Technology

[0002] A valve is defined as a device used in a fluid system to control the direction, pressure, and flow rate of a fluid. A valve is a device that allows the medium in piping and equipment to flow or stop and can control its flow rate. The flow or stop of the medium is achieved by controlling the movement of the valve plate and the combination of opening and closing of the valve seat.

[0003] During the movement of the valve plate and the opening and closing of the valve seat, wear is easily caused, resulting in poor sealing and failure to achieve a sealed closure. In case of leakage, the valve body needs to be replaced, and emergency sealing cannot be achieved. After the flow is cut off, the valve body needs to be repaired. Therefore, we propose a valve body and valve plate structure to solve this defect of the existing technology. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a valve body and valve plate structure.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a valve body and valve plate structure, including a valve seat integrally connected to the valve body, a sealing valve cover plate adapted to seal above the valve seat, a plurality of telescopic rods connected to the valve body on the sealing valve cover plate, an adjusting screw rotating at the upper center of the sealing valve cover plate, a threaded seat integrally connected to the valve body connected to the external thread of the adjusting screw, a flexible annular rubber sheet on the upper outer ring wall of the sealing valve cover plate, a sealing ring seat that fits against the upper surface of the valve seat at the other end of the flexible annular rubber sheet, a strip-shaped limiting hole on the adjusting screw, and a connecting frame passing through the strip-shaped limiting hole at the upper end of the sealing ring seat;

[0006] The adjusting screw is equipped with an adjusting component for adjusting the movement of the connecting frame.

[0007] Using the above technical solution, when the sealing valve cover plate is worn and the valve seat cannot achieve a seal, resulting in leakage, the connecting bracket can be moved within the strip-shaped limiting hole by adjusting the adjusting component. Simultaneously, the sealing ring seat moves down and fits tightly against the valve seat for sealing. The flexible annular rubber sheet extends synchronously and forms a sealing system with the sealing valve cover plate, achieving rapid emergency sealing. After cutting off the flowing medium, the main valve can be easily closed, allowing for disassembly and maintenance work after the flow is interrupted.

[0008] As a preferred embodiment of this utility model, the adjustment assembly includes a movable seat located at the middle of the upper end of the connecting frame, and an adjustment rod with a threaded adjustment rod that rotates with the center of the upper surface of the movable seat is threadedly connected to the center of the upper end of the adjustment screw.

[0009] Using the above technical solution, as the threaded adjusting rod is screwed into the adjusting screw, it rotates on the movable seat and pushes the connecting frame to move downward within the strip-shaped limiting hole, thereby pushing the sealing ring seat downward to seal and fit with the valve seat to achieve valve closure.

[0010] As a preferred embodiment of this utility model, the outer ring wall of the sealing valve cover plate is provided with a sealing annular groove, and the inner wall of the sealing ring seat is provided with a sealing ring that slides within the sealing annular groove.

[0011] By adopting the above technical solution, the sealing annular groove ensures that when the sealing ring seat moves downward, it drives the sealing ring to move within the sealing annular groove and maintains a moving sealing effect with the sealing valve cover plate.

[0012] As a preferred embodiment of this utility model, the outer ring wall of the sealing ring seat is provided with an embedded annular sealing groove, and the upper end of the valve seat is provided with an annular sealing seat that seals and fits with the embedded annular sealing groove.

[0013] By adopting the above technical solution, when the sealing ring seat moves down and fits against the valve seat, the annular sealing seat is inserted into the embedded annular sealing groove and fits against the sealing ring seat to seal, thereby improving the sealing fit effect between the sealing ring seat and the valve seat.

[0014] In a preferred embodiment of this invention, when the sealing ring is located at the top of the sealing annular groove, the sealing ring seat is separated from the valve seat.

[0015] In a preferred embodiment of this utility model, when the telescopic rod is in the retracted state, the sealing valve cover plate separates from the valve seat.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] This valve body and valve plate structure allows for rapid emergency sealing when the sealing valve cover plate wears and the valve seat fails to achieve a proper seal, resulting in leakage. By adjusting the adjusting component, the connecting bracket can be moved within the strip-shaped limiting hole, simultaneously causing the sealing ring seat to move downwards and tightly fit against the valve seat for a seal. The flexible annular rubber sheet extends synchronously to form a sealing system with the sealing valve cover plate. Compared to existing technologies, this achieves rapid emergency sealing, cuts off the flowing medium, and facilitates the closure of the main valve, enabling disassembly and maintenance after flow interruption. Attached Figure Description

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

[0019] Figure 2 This is a bottom-view perspective view of the present invention.

[0020] Figure 3 Side view of this utility model;

[0021] Figure 4 Cross-sectional perspective view of this utility model

[0022] Figure 5 Enlarged view of section A of this utility model

[0023] In the diagram: 1. Valve seat; 2. Threaded seat; 3. Sealing valve cover plate; 4. Telescopic rod; 5. Adjusting screw; 6. Flexible annular rubber sheet; 7. Sealing ring seat; 8. Strip-shaped limiting hole; 9. Connecting frame; 10. Movable seat; 11. Threaded adjusting rod; 12. Sealing annular groove; 13. Sealing ring; 14. Embedded annular sealing groove; 15. Annular sealing seat. 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. 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.

[0025] Please see Figures 1 to 5 In this embodiment, a valve body and valve plate structure includes a valve seat 1 and a threaded seat 2. The valve seat 1 is integrally connected and fixed to the valve body, providing basic support and a sealing reference surface for the entire valve plate structure.

[0026] The threaded seat 2 is also integrated with the valve body and is located at a certain position above the valve seat 1. It has a threaded hole inside for threaded connection with the adjusting screw 5, providing fixed support for the rotation and up-down movement of the adjusting screw 5.

[0027] The sealing valve cover plate 3 is adapted to seal above the valve seat 1. Its shape matches the sealing surface of the valve seat 1, and it is usually circular or other shapes designed according to actual needs.

[0028] Multiple telescopic rods 4 are fixed on the upper surface of the sealing valve cover plate 3. One end of the telescopic rod 4 is connected to the sealing valve cover plate 3, and the other end is connected and fixed to the valve body. In this embodiment, there is a pair of telescopic rods 4. When the telescopic rod 4 is in the retracted state, the sealing valve cover plate 3 is separated from the valve seat 1, providing a flow channel for the fluid. When the telescopic rod 4 is extended, it can push the sealing valve cover plate 3 to move towards the valve seat 1 to achieve sealing.

[0029] An adjusting screw 5 is rotatably connected to the center of the upper surface of the sealing valve cover plate 3. The adjusting screw 5 can rotate around its own axis on the sealing valve cover plate 3.

[0030] The adjusting screw 5 is externally threaded to the threaded seat 2. By rotating the adjusting screw 5, it can move up and down under the action of the threaded seat 2.

[0031] The adjusting screw 5 has a strip-shaped limiting hole 8 extending through it from left to right. The strip-shaped limiting hole 8 is set along the axial direction of the adjusting screw 5 to limit the movement direction of the connecting frame 9, so that it can only move in the length direction of the strip-shaped limiting hole 8.

[0032] A flexible annular rubber sheet 6 is fixedly sealed on the upper outer ring wall of the sealing valve cover plate 3. The flexible annular rubber sheet 6 has good elasticity and flexibility. One end is connected to the sealing valve cover plate 3, and the other end is connected and fixed to the sealing ring seat 7.

[0033] The sealing ring seat 7 has an annular structure, and its lower end face fits against the upper surface of the valve seat 1 to achieve the sealing function. A connecting frame 9 is fixed on the upper end surface of the sealing ring seat 7. The connecting frame 9 passes through the strip-shaped limiting hole 8 on the adjusting screw 5. By adjusting the position of the connecting frame 9 in the strip-shaped limiting hole 8, the sealing ring seat 7 can be moved up and down.

[0034] The adjusting screw 5 is equipped with an adjusting assembly for adjusting the movement of the connecting frame 9. The adjusting assembly includes a movable seat 10 and a threaded adjusting rod 11. The movable seat 10 is fixed to the middle of the upper surface of the connecting frame 9. The threaded adjusting rod 11 is threaded through the upper center of the adjusting screw 5, and the lower end of the threaded adjusting rod 11 is rotatably connected to the center of the upper surface of the movable seat 10. When the threaded adjusting rod 11 is rotated, the threaded adjusting rod 11 is screwed in or out on the adjusting screw 5, and at the same time rotates around its own axis on the movable seat 10, thereby pushing the movable seat 10 and the connecting frame 9 to move up and down in the strip-shaped limiting hole 8.

[0035] The outer ring wall of the sealing valve cover plate 3 is provided with a sealing annular groove 12, and the inner wall of the sealing ring seat 7 is fixed with a sealing ring 13. The sealing ring 13 can slide in the sealing annular groove 12. When the sealing ring seat 7 moves down, the sealing ring 13 moves in the sealing annular groove 12 to ensure the sealing effect between the sealing ring seat 7 and the sealing valve cover plate 3.

[0036] When the sealing ring 13 is located at the top of the sealing annular groove 12, the sealing ring seat 7 separates from the valve seat 1.

[0037] The outer ring wall of the sealing ring seat 7 is provided with an embedded annular sealing groove 14, and the upper end surface of the valve seat 1 is sealed and fixed with an annular sealing seat 15. When the sealing ring seat 7 moves down and fits against the valve seat 1, the annular sealing seat 15 is inserted into the embedded annular sealing groove 14 and fits against the sealing ring seat 7 to seal, further improving the sealing fit effect between the sealing ring seat 7 and the valve seat 1.

[0038] Valve seat 1, threaded seat 2, and sealing valve cover plate 3: High-strength, corrosion-resistant metal materials, such as stainless steel and alloy steel, can be selected to ensure long-term stable use and sufficient strength in fluid media.

[0039] Flexible annular rubber sheet 6: Made of oil-resistant and corrosion-resistant rubber materials, such as nitrile rubber and fluororubber, to ensure good flexibility and sealing performance under different fluid media.

[0040] Sealing ring seat 7: It can be made of the same or similar metal material as valve seat 1, and the surface that fits with valve seat 1 is precision machined to improve the flatness and smoothness of the sealing surface and enhance the sealing effect.

[0041] Sealing ring 13 and annular sealing seat 15: Sealing ring 13 can be made of rubber, and annular sealing seat 15 can be made of the same metal material as sealing ring seat 7, and surface treated to improve sealing performance.

[0042] Threaded connection components such as adjusting screw 5 and threaded adjusting rod 11 are made of high-strength, wear-resistant metal materials and are heat-treated to improve their hardness and wear resistance, ensuring the reliability and service life of the threaded connection.

[0043] Structural design principles and usage steps:

[0044] When the valve body is in normal working condition, the telescopic rod 4 is in the retracted state, the sealing valve cover plate 3 is separated from the valve seat 1, and the fluid can flow through the gap between the valve seat 1 and the sealing valve cover plate 3. At this time, the sealing ring seat 7 is in a higher position under the action of the flexible annular rubber sheet 6 and does not contact the valve seat 1. The sealing ring 13 is located at the top of the sealing annular groove 12.

[0045] When the sealing valve cover plate 3 is worn and cannot achieve a seal with the valve seat 1, resulting in leakage, emergency sealing treatment is required. At this time, rotate the threaded adjusting rod 11. The threaded adjusting rod 11 screws into the adjusting screw 5 and rotates around its own axis on the movable seat 10, pushing the movable seat 10 and the connecting frame 9 to move downward in the strip-shaped limiting hole 8.

[0046] The connecting frame 9 drives the sealing ring seat 7 to move downward, and the flexible annular rubber sheet 6 extends synchronously. As the sealing ring seat 7 moves downward, the annular sealing seat 15 is gradually inserted into the embedded annular sealing groove 14. At the same time, the sealing ring 13 moves downward in the sealing annular groove 12 to ensure the seal between the sealing ring seat 7 and the sealing valve cover plate 3.

[0047] After the sealing ring seat 7 and valve seat 1 are tightly fitted and sealed, stop rotating the threaded adjusting rod 11. At this time, the flexible annular rubber sheet 6 and the sealing valve cover plate 3 form a sealing system to achieve rapid emergency sealing and cut off the flowing medium.

[0048] After completing the emergency sealing process, the main valve can be closed to cut off the flow. Then, the valve body can be disassembled and repaired, such as replacing worn sealing valve cover plate 3 and other components. After the repair is completed, the sealing ring seat 7 can be lifted back to its original position to restore the valve body to normal operation.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A valve body and valve plate structure, comprising a valve seat integrally connected to a valve body, a sealing valve cover plate adapted to seal above the valve seat, the sealing valve cover plate having a plurality of telescopic rods connected to the valve body, an adjusting screw rotatably mounted at the upper center of the sealing valve cover plate, the adjusting screw having a threaded seat integrally connected to the valve body, characterized in that, The upper outer ring wall of the sealing valve cover plate is provided with a flexible annular rubber sheet, and the other end of the flexible annular rubber sheet is provided with a sealing ring seat that fits against the upper surface of the valve seat. The adjusting screw is provided with a strip-shaped limiting hole, and the upper end of the sealing ring seat is provided with a connecting frame that passes through the strip-shaped limiting hole. The adjusting screw is equipped with an adjusting component for adjusting the movement of the connecting frame.

2. The valve body and valve plate structure according to claim 1, characterized in that: The adjustment assembly includes a movable seat located at the middle of the upper end of the connecting frame, and an adjustment rod with a threaded adjustment rod that rotates with the center of the upper surface of the movable seat is threaded through the center of the upper end of the adjustment screw.

3. The valve body and valve plate structure according to claim 1, characterized in that: The outer ring wall of the sealing valve cover plate is provided with a sealing annular groove, and the inner wall of the sealing ring seat is provided with a sealing ring that slides within the sealing annular groove.

4. The valve body and valve plate structure according to claim 1, characterized in that: The outer ring wall of the sealing ring seat is provided with an embedded annular sealing groove, and the upper end of the valve seat is provided with an annular sealing seat that fits in a sealing manner with the embedded annular sealing groove.

5. The valve body and valve plate structure according to claim 3, characterized in that: When the sealing ring is located at the top of the sealing annular groove, the sealing ring seat separates from the valve seat.

6. The valve body and valve plate structure according to claim 1, characterized in that: When the telescopic rod is in the retracted state, the sealing valve cover plate separates from the valve seat.

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