High-stability control valve

Abstract

The utility model relates to the technical field of control valves, and discloses a high-stability control valve which comprises a connecting pipe, a flow guide pipe is fixedly connected to the outer portion of the connecting pipe, a sealing ring is fixedly connected to the inner portion of the flow guide pipe, and a supporting column is slidably connected to the end, away from the sealing ring, of the flow guide pipe. The exterior of the supporting column is fixedly connected with a top column, the end, away from the supporting column, of the top column is fixedly connected with a sliding disc, and the end, away from the top column, of the sliding disc is fixedly connected with a sliding cone. According to the device, water flow pushes the sliding cone to move upwards and flows upwards from the exteriors of the sliding cone and the sliding disc, and then the sliding column drives the limiting block to move in the sliding sleeve and extrudes the spring in the moving process. And after the supporting column downwards applies pressure to the sliding cone to compress the space, the water flow is reduced, and on the contrary, the water flow is increased, so that the accurate control over the water flow is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of control valve technology, and in particular to a high-stability control valve. Background Technology

[0002] Control valves are devices used to control parameters such as flow rate, pressure, and level of fluids (liquids, gases, etc.). Common types include: pressure control valves, which automatically open to release pressure when the pressure exceeds the limit; and directional control valves, used to control the flow direction of fluids. These control valves play a crucial role in many industries such as chemical, petroleum, and power generation. Among them, flow control valves can control the flow rate by changing the cross-sectional area of ​​the passage.

[0003] A flow control valve mainly consists of a valve body, valve core, valve seat, and regulating device. Its working principle is to control the flow rate by changing the flow cross-sectional area between the valve core and the valve seat. When the regulating device is operated, the valve core moves, changing the size of the passage through which the fluid flows. For example, in a throttle valve, turning the handwheel clockwise lowers the valve core, reducing the flow area and decreasing the flow rate; conversely, turning the handwheel counterclockwise increases the flow area and increases the flow rate, thus achieving precise flow control.

[0004] In existing technologies, some flow control valves still traditionally control flow by changing the opening of the valve port, that is, the throttling area between the valve core and the valve seat. While accurately controlling the water flow, they cannot protect the valve core itself. As the valve core wears and corrodes, the sealing performance between it and the valve seat deteriorates, resulting in leakage. This causes a deviation between the actual flow and the set flow, making it impossible to achieve the requirements of accurate control and affecting normal operation. Therefore, a high-stability control valve is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a high-stability control valve, which aims to improve the problem in the prior art that while accurately controlling the water flow rate, the valve core cannot be self-protected.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-stability control valve includes a connecting pipe, a guide pipe fixedly connected to the outside of the connecting pipe, a sealing ring fixedly connected inside the guide pipe, a support column slidably connected to the end of the guide pipe away from the sealing ring, a top column fixedly connected to the outside of the support column, a sliding disc fixedly connected to the end of the top column away from the support column, a sliding cone fixedly connected to the end of the sliding disc away from the top column, a plurality of sliding pillars fixedly connected to the outside of the sliding disc, a limit block fixedly connected to the end of each of the plurality of sliding pillars away from the sliding disc, a sliding sleeve slidably connected to the outside of the limit block, a spring fixedly connected to the end of the limit block away from the sliding pillar, and a sealing assembly for sealing subsequent components movably connected to the inner wall of the guide pipe.

[0008] As a further description of the above technical solution:

[0009] The sealing assembly includes a pressure pad, a fixing ring fixedly connected to the outside of the pressure pad, a squeezing pad movably connected to the end of the fixing ring away from the pressure pad, a positioning ring fixedly connected to the end of the squeezing pad away from the fixing ring, a stabilizing ring movably connected to the inner wall of the squeezing pad, and a positioning ring fixedly connected to the inner wall of the guide tube at the end of the positioning ring away from the squeezing pad.

[0010] As a further description of the above technical solution:

[0011] The support column is slidably connected to the inner wall of the guide tube, and the sliding column is slidably connected to the inner wall of the sliding sleeve.

[0012] As a further description of the above technical solution:

[0013] The end of the sliding sleeve away from the sliding column is fixedly connected to the inner wall of the connecting tube, and the end of the spring away from the limiting block is fixedly connected to the inner wall of the sliding sleeve.

[0014] As a further description of the above technical solution:

[0015] The outer side of the pressure pad is in contact with the inner wall of the guide tube, and the outer side of the squeeze pad is in contact with the inner wall of the guide tube.

[0016] As a further description of the above technical solution:

[0017] The outer side of the stabilizing ring is in contact with the outer side of the sliding cone, and the outer side of the sliding disk is in contact with the outer side of the stabilizing ring;

[0018] As a further description of the above technical solution:

[0019] The outer part of the stabilizing ring is movably connected to the inner wall of the pressure pad, and the outer part of the pressure pad is in contact with the outer part of the sliding cone.

[0020] As a further description of the above technical solution:

[0021] The outer surface of the compression pad is in contact with the outer surface of the sliding cone, and the outer surface of the pressure pad is in contact with the outer surface of the sliding disc.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, during use, when water flows from the inside of the connecting pipe into the guide pipe and contacts the sliding cone, the water pushes the sliding cone upward, flowing upward from the outside of the sliding cone and sliding plate, and exiting from the input pipe connected above the connecting pipe. As the sliding cone moves upward, it transmits force to the sliding column above the sliding plate. The sliding column then drives the limiting block to move inside the sliding sleeve, compressing the spring during the movement. Because the water itself has an inherent force that moves the sliding cone upward, and the support column applies downward pressure to the sliding cone, compressing the space, the water flow decreases; conversely, the water flow increases, enhancing the precise control of the water flow rate.

[0024] 2. In this utility model, the sliding cone closes the water flow. At this time, the sliding cone will squeeze the pressure pad and the stabilizing ring. Since the upper part of the stabilizing ring is stuck inside the pressure pad, and at the same time, during the squeezing process, the pressure pad will drive the fixing ring to move downward and get stuck inside the squeezing pad. The lower part of the stabilizing ring is stuck inside the squeezing pad. Therefore, during the squeezing and movement of the upper stabilizing ring and the pressure pad, the squeezing pad drives the positioning ring to get stuck in the groove of the guide pipe. Finally, when the sliding cone closes the water flow downward and squeezes the pressure pad and the stabilizing ring, the pressure pad, the stabilizing ring and the squeezing pad deform due to their own characteristics and stick tightly to the sliding cone to prevent water leakage, thereby improving the sealing effect of the control valve and extending its service life. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a high-stability control valve proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the sliding cone structure of a high-stability control valve proposed in this utility model;

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 This is a schematic diagram of the stabilizing coil of a high-stability control valve proposed in this utility model.

[0029] Legend:

[0030] 1. Connecting pipe; 2. Guide pipe; 3. Sealing ring; 4. Support column; 5. Top column; 6. Sliding disc; 7. Sliding cone; 8. Sliding sleeve; 9. Sliding column; 10. Limiting block; 11. Spring; 12. Pressure pad; 13. Fixing ring; 14. Extrusion pad; 15. Stabilizing ring; 16. Positioning ring. Detailed Implementation

[0031] 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.

[0032] Reference Figures 1 to 2 This utility model provides an embodiment of a high-stability control valve, comprising a connecting pipe 1, which serves as the main channel for water flow and plays a fundamental role in guiding the water flow direction. A guide pipe 2 is fixedly connected externally to the connecting pipe 1, which can change the flow direction of the water, allowing the water to flow along a designed path and guiding the entire water flow control process. A sealing ring 3 is fixedly connected internally to the guide pipe 2, tightly fitting inside the guide pipe 2 to effectively prevent water leakage from the connection point, achieving a good sealing effect and ensuring the overall sealing performance of the control valve. A support column 4 is slidably connected to the end of the guide pipe 2 away from the sealing ring 3. The support column 4 slides flexibly within the guide pipe 2, and its positional changes can apply different degrees of pressure to subsequent related components, thereby controlling the water flow magnitude and playing a crucial role in the water flow regulation mechanism of the entire control valve.

[0033] A top column 5 is fixedly connected to the external side of the support column 4. The top column 5 transmits the force of the support column 4, stably transferring the force generated by the support column 4 to other connected components, ensuring the continuity of force transmission and facilitating the normal operation of the entire control valve. A sliding disc 6 is fixedly connected to the end of the top column 5 away from the support column 4. The sliding disc 6 moves accordingly with the force transmitted from the top column 5, and its own movement drives the surrounding related components to move in coordination, making it an important linkage component in realizing water flow control operation. A sliding cone 7 is fixedly connected to the end of the sliding disc 6 away from the top column 5. In use, when water flows from the inside of the connecting pipe 1 into the guide pipe 2 and comes into contact with the sliding cone 7, the water flow pushes the sliding cone 7 upward. The sliding cone 7 is a key component that is in direct contact with the water flow and is affected by the force of the water flow. Its movement directly determines the subsequent flow direction and flow rate of the water. The water flows upward from the outside of the sliding cone 7 and the sliding disc 6 and flows out from the input pipe connected above the connecting pipe 1.

[0034] Reference Figures 2 to 3 Multiple sliding pillars 9 are fixedly connected to the outside of the sliding disk 6. The sliding pillars 9 move with the sliding disk 6 and are important connecting structures that transmit the action of the sliding disk 6 to other components, ensuring the correlation of the actions between the components. Each end of the multiple sliding pillars 9 away from the sliding disk 6 is fixedly connected to a limit block 10. The limit block 10 can limit the sliding range of the sliding pillar 9, prevent the sliding pillar 9 from sliding excessively and deviating from the corresponding track, and ensure the stability of the entire sliding structure. The limiting block 10 is externally slidably connected to a sliding sleeve 8, which provides a stable track for the sliding of the limiting block 10, allowing it to slide smoothly and in a specified direction within the limiting block 10, ensuring the standardized operation of related components. A spring 11 is fixedly connected to the end of the limiting block 10 away from the sliding column 9. The spring 11 is elastic; when the sliding column 9 moves the limiting block 10, the spring 11 is compressed or stretched. Its elastic restoring force acts as a buffer and assists in component reset under different water flow control states. For example, when water flow is not needed, the sliding cone 7 protects itself and its internal components when moving downwards to close, and the spring 11 assists in the smooth reset of related components. A sealing assembly is movably connected to the inner wall of the guide pipe 2 to seal subsequent components. This sealing assembly ensures the sealing of the control valve under different operating conditions, preventing unwanted leakage and playing a crucial role in ensuring the stable operation of the entire control valve.

[0035] Reference Figure 1 and Figure 4 The sealing assembly includes a pressure pad 12, which deforms under external pressure, allowing it to better conform to the relevant components and achieve a sealing effect. A fixing ring 13 is externally fixed to the pressure pad 12, enhancing the stability of the connection between the pressure pad 12 and other components and preventing displacement during stress, thus ensuring the stability of the sealing effect. A compression pad 14 is movably connected to the end of the fixing ring 13 furthest from the pressure pad 12. When compressed by the component above, the compression pad 14 transmits this pressure to other connected components and deforms according to the stress to adapt to the sealing requirements. A positioning ring 16 is fixedly connected to the end of the compression pad 14 furthest from the fixing ring 13, accurately positioning the compression pad 14 and other related sealing components at specific positions on the guide tube 2, ensuring the accuracy of the sealing structure. The inner wall of the compression pad 14 is movably connected to a stabilizing ring 15. The stabilizing ring 15 plays a role in stabilizing the relative positional relationship between the sealing components. At the same time, it can also participate in the deformation adjustment of the sealing structure when subjected to force, ensuring the reliability of the overall seal. The end of the positioning ring 16 away from the compression pad 14 is fixedly connected to the inner wall of the guide tube 2, so that the entire sealing assembly can be firmly installed in a suitable position in the guide tube 2 and maintain a stable sealing state.

[0036] Reference Figures 1 to 3 The support column 4 is externally slidably connected to the inner wall of the guide pipe 2. This sliding connection allows the support column 4 to move flexibly up and down within the guide pipe 2 to adjust the water flow according to actual needs. The sliding column 9 is externally slidably connected to the inner wall of the sliding sleeve 8, ensuring that the sliding column 9 can slide smoothly in a predetermined direction within the sliding sleeve 8, thus ensuring the smooth operation of the entire linkage structure. The end of the sliding sleeve 8 away from the sliding column 9 is fixedly connected to the inner wall of the connecting pipe 1, allowing the sliding sleeve 8 to be securely installed within the connecting pipe 1, providing a stable support foundation for the sliding of the sliding column 9 and other related components. The end of the spring 11 away from the limiting block 10 is fixedly connected to the inner wall of the sliding sleeve 8, providing a reliable fixing point for the spring 11 when compressed or stretched, ensuring that it can properly perform its elastic function.

[0037] The outer surface of the pressure pad 12 contacts the inner wall of the guide tube 2. This close contact allows the pressure pad 12 to better deform and seal with the help of the inner wall of the guide tube 2 when subjected to external force, ensuring a sealing effect. Similarly, the outer surface of the squeeze pad 14 contacts the inner wall of the guide tube 2, which also helps the squeeze pad 14 to cooperate with the inner wall of the guide tube 2 to achieve a better seal during the stress process, preventing water leakage. The outer surface of the stabilizing ring 15 contacts the outer surface of the sliding cone 7. When the sliding cone 7 moves and water flow control operations are performed, the stabilizing ring 15 can transmit and adjust the force through contact with the sliding cone 7, ensuring the coordination between the sealing structure and the water flow control components. The outer surface of the sliding disc 6 contacts the outer surface of the stabilizing ring 15, which facilitates the transmission of force and the continuity of action during the movement of related components, maintaining the stable operation of the entire control valve.

[0038] Reference Figure 2 The external movable connection of the stabilizing ring 15 is to the inner wall of the pressure pad 12. This connection allows the stabilizing ring 15 to adjust its position on the inner wall of the pressure pad 12 when it moves under force, simultaneously driving other related components to move in tandem. The external part of the pressure pad 12 is in contact with the external part of the sliding cone 7. When the sliding cone 7 controls or shuts off the water flow, the pressure pad 12 can better perform its sealing function through contact with the sliding cone 7, preventing water leakage. The external part of the squeezing pad 14 is in contact with the external part of the sliding cone 7. The squeezing pad 14 senses the movement and force of the sliding cone 7 through contact with it, and then adjusts its own state accordingly to achieve the sealing function. The external part of the pressure pad 12 is in contact with the external part of the sliding disc 6, which facilitates the maintenance of the overall structural stability and sealing effect during the linkage of related components, ensuring the normal operation of the control valve.

[0039] Working principle: In use, when water flows from the inside of the connecting pipe 1 into the guide pipe 2 and comes into contact with the sliding cone 7, the water pushes the sliding cone 7 upward and flows upward from the outside of the sliding cone 7 and the sliding plate 6, and flows out from the input pipe connected above the connecting pipe 1. When the sliding cone 7 moves upward, it will transmit the force to the sliding column 9 above the sliding plate 6. Then the sliding column 9 drives the limiting block 10 to move inside the sliding sleeve 8 and squeezes the spring 11 during the movement. When a small amount of water flow is needed, the pressure applied to the support column 4 above acts on the sliding cone 7. Since the water flow itself has a force, it will move the sliding cone 7 upward. After the support column 4 applies pressure downward to the sliding cone 7 and compresses the space, the water flow will decrease. Conversely, the water flow will increase. At the same time, due to the characteristics of the spring 11, when the water flow is not needed, the sliding cone 7 will protect itself and the internal components when it moves downward to close.

[0040] When water flow is not needed, the sliding cone 7 shuts off the water flow. At this time, the sliding cone 7 will squeeze the pressure pad 12 and the stabilizing ring 15. Since the upper part of the stabilizing ring 15 is stuck inside the pressure pad 12, the stabilizing ring 15 will move towards the pressure pad 12 when it is squeezed. At the same time, during the squeezing process, the pressure pad 12 will drive the fixing ring 13 to move downward and get stuck inside the squeezing pad 14. After the pressure pad 12 is squeezed by the stabilizing ring 15, it will contract the inner wall of the guide tube 2. The lower part of the stabilizing ring 15 is stuck inside the squeezing pad 14. So, during the squeezing and moving process of the upper stabilizing ring 15 and the pressure pad 12, the squeezing pad 14 will drive the positioning ring 16 to get stuck in the slot of the guide tube 2. At the same time, the stabilizing ring 15 is connected to the pressure pad 12 to prevent it from slipping out. Finally, when the sliding cone 7 squeezes the pressure pad 12 and the stabilizing ring 15 downward to shut off the water flow, the pressure pad 12, the stabilizing ring 15 and the squeezing pad 14 will deform due to their own characteristics and stick tightly to the sliding cone 7 to prevent water leakage.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-stability control valve, comprising a connecting pipe (1), characterized in that: The connecting pipe (1) is fixedly connected to the outside of the guide pipe (2), and the inside of the guide pipe (2) is fixedly connected to the sealing ring (3). The end of the guide pipe (2) away from the sealing ring (3) is slidably connected to the support column (4). The outside of the support column (4) is fixedly connected to the top column (5). The end of the top column (5) away from the support column (4) is fixedly connected to the sliding plate (6). The end of the sliding plate (6) away from the top column (5) is fixedly connected to the sliding cone (7). The outside of the sliding plate (6) is fixedly connected to multiple sliding columns (9). The ends of the multiple sliding columns (9) away from the sliding plate (6) are all fixedly connected to the limit block (10). The outside of the limit block (10) is slidably connected to the sliding sleeve (8). The end of the limit block (10) away from the sliding column (9) is fixedly connected to the spring (11). The inner wall of the guide pipe (2) is movably connected to a sealing assembly for sealing subsequent components.

2. The high-stability control valve according to claim 1, characterized in that: The sealing assembly includes a pressure pad (12), a fixing ring (13) is fixedly connected to the outside of the pressure pad (12), a compression pad (14) is movably connected to the end of the fixing ring (13) away from the pressure pad (12), a positioning ring (16) is fixedly connected to the end of the compression pad (14) away from the fixing ring (13), a stabilizing ring (15) is movably connected to the inner wall of the compression pad (14), and the end of the positioning ring (16) away from the compression pad (14) is fixedly connected to the inner wall of the guide tube (2).

3. The high-stability control valve according to claim 1, characterized in that: The support column (4) is externally slidably connected to the inner wall of the guide pipe (2), and the sliding column (9) is externally slidably connected to the inner wall of the sliding sleeve (8).

4. The high-stability control valve according to claim 1, characterized in that: The end of the sliding sleeve (8) away from the sliding column (9) is fixedly connected to the inner wall of the connecting pipe (1), and the end of the spring (11) away from the limiting block (10) is fixedly connected to the inner wall of the sliding sleeve (8).

5. A high-stability control valve according to claim 2, characterized in that: The outside of the pressure pad (12) is in contact with the inner wall of the guide tube (2), and the outside of the squeeze pad (14) is in contact with the inner wall of the guide tube (2).

6. A high-stability control valve according to claim 2, characterized in that: The outer side of the stabilizing ring (15) is in contact with the outer side of the sliding cone (7), and the outer side of the sliding disk (6) is in contact with the outer side of the stabilizing ring (15).

7. A high-stability control valve according to claim 2, characterized in that: The outside of the stabilizing ring (15) is movably connected to the inner wall of the pressure pad (12), and the outside of the pressure pad (12) is in contact with the outside of the sliding cone (7).

8. A high-stability control valve according to claim 2, characterized in that: The outside of the compression pad (14) is in contact with the outside of the sliding cone (7), and the outside of the pressure pad (12) is in contact with the outside of the sliding disk (6).

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