High performance pressure regulating valve

Abstract

The application discloses a high-performance pressure regulating valve and relates to the technical field of valves.The high-performance pressure regulating valve comprises a valve body, a top cover fixedly connected to the top of the valve body, two connecting columns fixedly connected to the top of the top cover, support plates fixedly sleeved with the outer portions of the two connecting columns, outer screw sleeves provided on the top of the support plates, valve rods slidingly arranged on the inner walls of the outer screw sleeves, valve cores fixedly connected to the bottoms of the valve rods and extending into the valve body through the top cover, and valve seats fixedly connected to the inner walls of the valve body and matched with the valve cores.The valve core can be separated from the valve seat by moving the piston ring upward along the water flow, the first through hole and the second through hole are coincident, the water flow pressure can be reduced by the impeller, the valve body is opened, the sealing ring on the valve core is protected, the compression distance of the spring is adjusted by rotating the outer screw sleeve, the water pressure in the pipeline is adjusted, and the high-performance pressure regulating valve is convenient to use.

Description

Technical Field

[0001] This invention belongs to the field of valve technology, and in particular relates to high-performance pressure regulating valves. Background Technology

[0002] Pressure regulating valves, also known as self-regulating balancing valves, flow control valves, flow controllers, dynamic balancing valves, and flow balancing valves, are intuitive and simple flow regulation and control devices. In pipeline networks, pressure regulating valves allow for direct flow setting based on design specifications. Under the action of water, the valve automatically eliminates flow deviations caused by residual pressure head and pressure fluctuations in the pipeline, maintaining the set flow rate regardless of system pressure changes. These functions enable pipeline flow regulation to be completed in one step, transforming network regulation into simple flow distribution and effectively solving hydraulic imbalances in the pipeline network.

[0003] A search revealed that utility model CN213899906U discloses a high-performance pressure regulating valve, relating to the field of pump valve technology in refrigeration systems. It solves the technical problem of short spring life in existing pressure regulating valves. The medium in the inlet chamber can enter the outlet chamber and push the piston to move, causing the valve core to separate from the through hole. The medium in the inlet chamber flows into the outlet chamber through the gap between the valve core and the through hole.

[0004] This pressure regulating valve also has the following disadvantages when in use: the opening size is changed by moving the valve core up and down. When the valve core moves, the sealing ring on the outer wall will rub against the valve seat. Over time, wear and leakage will occur. In addition, the water pressure will change with the opening size when opening and closing, which can easily impact the sealing ring and affect its service life. Summary of the Invention

[0005] The purpose of this invention is to provide a high-performance pressure regulating valve. By moving the piston ring upward through the water flow, the valve core can be disengaged from the valve seat. The first through hole and the second through hole coincide. The impeller can reduce the water flow pressure, thereby opening the valve body to facilitate the protection of the sealing ring on the valve core. Furthermore, by rotating the outer threaded sleeve to adjust the compression distance of the spring, the water pressure inside the pipeline can be adjusted, making it easy to use and solving the existing technical problems.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0007] A high-performance pressure regulating valve includes: a valve body, a top cover fixedly connected to the top of the valve body, two connecting posts fixedly connected to the top of the top cover, a support plate fixedly sleeved on the outside of the two connecting posts, an external threaded sleeve penetrating the top of the support plate, a valve stem slidably provided on the inner wall of the external threaded sleeve, a valve core fixedly connected to the bottom of the valve stem through the top cover into the valve body, and a valve seat for cooperating with the valve core fixedly connected to the inner wall of the valve body;

[0008] The regulating mechanism, located inside the valve seat, is used to regulate the water flow rate, enabling it to adjust the water flow rate according to the water pressure.

[0009] The reset mechanism, located at the bottom of the pressure plate, is used to drive the valve stem to move automatically, facilitating automatic adjustment of the valve core and saving manual adjustment time.

[0010] Optionally, the adjusting mechanism includes a rotating plate fixedly connected to the inner wall of the valve seat, a fixed plate rotatably connected to the inner wall of the valve seat, a plurality of second through holes opened on the top of the rotating plate, and a first through hole corresponding to the second through holes opened on the top of the fixed plate. The first through holes and the second through holes are offset from each other, which can reduce the water flow to the valve seat. A connecting rod is fixedly connected to the top of the fixed plate, and a connecting sleeve is slidably fitted on the outer wall of the connecting rod. The connecting sleeve is fixedly connected to the bottom of the valve core. A spiral groove is opened on the outer wall of the connecting rod, and a sliding block is slidably fitted on the inner wall of the spiral groove. The sliding block is fixedly connected to the inner wall of the connecting sleeve, so that when the valve core rises, it drives the rotating plate to rotate, so that the first through hole and the second through hole coincide.

[0011] Optionally, the reset mechanism includes a spring sleeved on the outer wall of the valve stem. Pressure plates are fixedly sleeved on both the outer threaded sleeve and the outer wall of the valve stem. The two ends of the spring are fixedly connected to the adjacent sides of the two pressure plates, respectively. A nut is fixedly connected to the top of the support plate. The nut is threaded onto the outer wall of the outer threaded sleeve. Rotating the outer threaded sleeve can adjust the spring compression distance, thereby adjusting the water pressure. A guide sleeve is fixedly connected to the bottom of the pressure plate to guide the spring. The guide sleeve is sleeved on the outer wall of the valve stem.

[0012] Optionally, a hollow shaft is fixedly connected to the inner wall of the top cover. The hollow shaft is sleeved on the outer wall of the valve stem. A piston ring is slidably connected to the inner wall of the hollow shaft. The piston ring is fixedly sleeved on the valve stem. A second channel communicating with the hollow shaft is opened on one side of the top cover. A first channel communicating with the second channel is opened on the top of the valve body. Water pressure can drive the piston ring to move, thereby driving the valve core to move, so as to open the valve according to the water pressure.

[0013] Optionally, a guide bar is fixedly connected to the bottom of the valve core to prevent the valve core and valve seat from misaligning.

[0014] Optionally, a fixing block corresponding to the second through hole is fixedly connected to the bottom of the rotating plate, and a rotating shaft is fixedly connected to one side of the fixing block. An impeller is rotatably sleeved on the outer wall of the rotating shaft, which can slow down the water flow and facilitate the protection of the sealing ring on the valve core.

[0015] Optionally, a limiting ring is fixedly connected to the bottom of the piston ring, and the limiting ring is fixedly sleeved on the valve stem. The limiting ring is flush with the second channel to facilitate water flow squeezing the piston ring.

[0016] Optionally, a handwheel is fixedly connected to the top of the external threaded sleeve, and the outer wall of the handwheel is provided with anti-slip texture to facilitate the rotation of the external threaded sleeve.

[0017] The embodiments of the present invention have the following beneficial effects:

[0018] The upward movement of the piston ring caused by the water flow can cause the valve core to disengage from the valve seat. The first and second through holes coincide, and the impeller can reduce the water pressure, thereby opening the valve body to protect the sealing ring on the valve core. Furthermore, by rotating the outer threaded sleeve to adjust the compression distance of the spring, the water pressure inside the pipeline can be adjusted for ease of use.

[0019] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the upper half cross-sectional structure according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the lower half cross-sectional structure according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the valve core structure according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of a connecting rod structure according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of a fixing plate structure according to an embodiment of the present invention.

[0027] In the diagram: 1. Valve body; 2. Top cover; 3. Connecting column; 4. Support plate; 5. External threaded sleeve; 6. Pressure plate; 7. Spring; 8. Guide sleeve; 9. Hollow shaft; 10. Valve stem; 11. Piston ring; 12. Handwheel; 13. Nut; 14. Valve seat; 15. Fixing plate; 16. Rotating plate; 17. First channel; 18. Valve core; 19. Connecting rod; 20. First through hole; 21. Second through hole; 22. Impeller; 23. Connecting sleeve; 24. Guide bar; 25. Sliding block; 26. Spiral groove; 27. Fixing block; 28. Rotating shaft; 29. ​​Second channel; 30. Limiting ring. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In the description of this invention, it should be understood that the terms "opening", "upper", "middle", "length", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0030] To keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of known functions and known components are omitted.

[0031] Example 1

[0032] Please see Figures 1-3 As shown, this embodiment provides a high-performance pressure regulating valve, including: a valve body 1, a top cover 2 fixedly connected to the top of the valve body 1, two connecting posts 3 fixedly connected to the top of the top cover 2, a support plate 4 fixedly sleeved on the outside of the two connecting posts 3, an external threaded sleeve 5 penetrating the top of the support plate 4, a valve stem 10 slidably provided on the inner wall of the external threaded sleeve 5, a valve core 18 fixedly connected to the bottom of the valve stem 10 penetrating the top cover 2 and extending into the valve body 1, and a valve seat 14 used in conjunction with the valve core 18 fixedly connected to the inner wall of the valve body 1;

[0033] An adjustment mechanism, located within the valve seat 14, is used to adjust the water flow rate.

[0034] The reset mechanism is located at the bottom of the pressure plate 6 to drive the valve stem 10 to move automatically. In the above technical solution, the opening size of the valve seat 14 can be controlled by the adjustment mechanism to change the water flow. The reset mechanism can also enable the valve stem 10 to automatically adjust according to the water pressure, making it easy to use.

[0035] In one aspect of this embodiment, such as Figures 3-5 As shown, the adjusting mechanism includes a rotating plate 16 fixedly connected to the inner wall of the valve seat 14, a fixed plate 15 rotatably connected to the inner wall of the valve seat 14, a plurality of second through holes 21 opened on the top of the rotating plate 16, a first through hole 20 corresponding to the second through holes 21 opened on the top of the fixed plate 15, a connecting rod 19 fixedly connected to the top of the fixed plate 15, a connecting sleeve 23 slidably sleeved on the outer wall of the connecting rod 19, the connecting sleeve 23 fixedly connected to the bottom of the valve core 18, a spiral groove 26 opened on the outer wall of the connecting rod 19, a sliding block 25 slidably sleeved on the inner wall of the spiral groove 26, and the sliding block 25 fixedly connected to the inner wall of the connecting sleeve 23. In the above technical solution, the valve stem 10 rising can drive the valve core 18 to rise, and the valve core 18 rising can drive the connecting rod 19 to rotate through the connecting sleeve 23, thereby driving the fixed plate 15 to rotate so that the first through hole 20 and the second through hole 21 correspond, thereby adjusting the opening size of the valve seat 14.

[0036] In one aspect of this embodiment, such as Figure 2 As shown, the reset mechanism includes a spring 7 sleeved on the outer wall of the valve stem 10, a pressure plate 6 fixedly sleeved on both the outer threaded sleeve 5 and the outer wall of the valve stem 10, and the two ends of the spring 7 are fixedly connected to the two pressure plates 6 on their respective adjacent sides. A nut 13 is fixedly connected to the top of the support plate 4, and the nut 13 is threaded onto the outer wall of the outer threaded sleeve 5. A guide sleeve 8 is fixedly connected to the bottom of the pressure plate 6, and the guide sleeve 8 is sleeved on the outer wall of the valve stem 10. In the above technical solution, when the water pressure is low, the valve stem 10 can automatically reset under the action of the spring 7, and the opening of the valve seat 14 is further reduced. Furthermore, rotating the outer threaded sleeve 5 can adjust the compression distance of the spring 7, thereby adjusting the valve pressure.

[0037] In one aspect of this embodiment, such as Figure 4 As shown, a guide bar 24 is fixedly connected to the bottom of the valve core 18. In the above technical solution, the guide bar 24 can be set so that the valve core 18 can be accurately locked on the valve seat 14, preventing the valve core 18 from shifting away from the valve seat 14.

[0038] In one aspect of this embodiment, such as Figure 4 and Figure 6 As shown, a fixing block 27 corresponding to the second through hole 21 is fixedly connected to the bottom of the rotating plate 16. A rotating shaft 28 is fixedly connected to one side of the fixing block 27. An impeller 22 is rotatably sleeved on the outer wall of the rotating shaft 28. In the above technical solution, the water flow can be disturbed by the setting of the impeller 22 to prevent the water pressure from impacting the sealing ring on the valve core 18.

[0039] Example 2

[0040] Improvements based on Example 1: such as... Figure 2and Figure 3 As shown, a hollow shaft 9 is fixedly connected to the inner wall of the top cover 2. The hollow shaft 9 is sleeved on the outer wall of the valve stem 10. A piston ring 11 is slidably connected to the inner wall of the hollow shaft 9. The piston ring 11 is fixedly sleeved on the valve stem 10. A second channel 29 communicating with the hollow shaft 9 is opened on one side of the top cover 2. A first channel 17 communicating with the second channel 29 is opened on the top of the valve body 1. In the above technical solution, when the valve core 18 and the valve seat 14 are closed, when the pressure in the pipeline is large, the water flows through the first channel 17 and the connecting rod 19 into the hollow shaft 9, which drives the piston ring 11 to move upward, drives the valve stem 10 to move upward, and thus drives the valve core 18 to disengage from the valve seat 14, so that the valve body 1 opens.

[0041] In one aspect of this embodiment, such as Figure 2 As shown, a limiting ring 30 is fixedly connected to the bottom of the piston ring 11. The limiting ring 30 is fixedly sleeved on the valve stem 10. The limiting ring 30 is flush with the second channel 29. In the above technical solution, the setting of the limiting ring 30 can prevent the piston ring 11 and the second channel 29 from blocking each other, making it easy to use.

[0042] Example 3

[0043] Improvements based on Example 1: such as... Figure 1 and Figure 2 As shown, a handwheel 12 is fixedly connected to the top of the outer threaded sleeve 5. The outer wall of the handwheel 12 is provided with anti-slip texture. In the above technical solution, the handwheel 12 is designed to facilitate the rotation of the outer threaded sleeve 5, which makes it convenient to adjust the compression distance of the spring 7.

[0044] The usage process and working principle of the technical solution of this invention are as follows:

[0045] In use, the valve is installed on a pipeline. Water flows into the valve body 1 and is blocked by the fixed plate 15 and the rotating plate 16. When the pressure at the right end of the valve body 1 is high, water enters the hollow shaft 9 through the first channel 17 and the second channel 29, which drives the piston ring 11 to move upward. The upward movement of the piston ring 11 drives the valve stem 10 to move, which in turn drives the connecting sleeve 23 to move. The movement of the connecting sleeve 23 drives the connecting rod 19 to rotate, which in turn drives the fixed plate 15 to rotate. The rotation of the fixed plate 15 causes the first through hole 20 to move closer to the second through hole 21. Water flowing through the second through hole 21 drives the impeller 22 to rotate, which reduces the water pressure. Then, the water flows out to the left side of the valve body 1 through the space between the valve seat 14 and the valve core 18. As the valve stem 10 rises, it drives the lower pressure plate 6 to move closer to the upper pressure plate 6, thereby squeezing the spring 7. When the water pressure in the pipeline is low, the valve stem 10 returns to its original position under the force of the spring 7, driving the piston ring 11 to move downward and discharge the water in the hollow shaft 9. At the same time, it drives the valve core 18 to move downward, driving the connecting rod 19 to rotate through the connecting sleeve 23, which in turn drives the fixed plate 15 to rotate, causing the first through hole 20 and the second through hole 21 to be misaligned, thereby reducing the water flow. Turning the handwheel 12 can drive the upper pressure plate 6 to move downward, reducing the compression distance of the spring 7, which can adjust the water pressure in the pipeline and make it easy to use.

[0046] It should be noted that in the description of this specification, descriptions such as "first" and "second" are only used to distinguish the features and do not have any actual order or directional meaning. This application is not limited to this.

[0047] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A high-performance pressure regulating valve, characterized in that, include: A valve body (1) is fixedly connected to a top cover (2). Two connecting columns (3) are fixedly connected to the top of the top cover (2). A support plate (4) is fixedly sleeved on the outside of the two connecting columns (3). An external threaded sleeve (5) is provided through the top of the support plate (4). A valve stem (10) is slidably provided on the inner wall of the external threaded sleeve (5). The bottom of the valve stem (10) extends through the top cover (2) into the valve body (1) and is fixedly connected to a valve core (18). A valve seat (14) that cooperates with the valve core (18) is fixedly connected to the inner wall of the valve body (1). The regulating mechanism is installed inside the valve seat (14) to regulate the water flow. A reset mechanism is located at the bottom of the pressure plate (6) to drive the valve stem (10) to move automatically; The adjusting mechanism includes a rotating plate (16) fixedly connected to the inner wall of the valve seat (14), a fixed plate (15) rotatably connected to the inner wall of the valve seat (14), a plurality of second through holes (21) being opened on the top of the rotating plate (16), a first through hole (20) corresponding to the second through holes (21) being opened on the top of the fixed plate (15), a connecting rod (19) being fixedly connected to the top of the fixed plate (15), a connecting sleeve (23) being slidably sleeved on the outer wall of the connecting rod (19), the connecting sleeve (23) being fixedly connected to the bottom of the valve core (18), a spiral groove (26) being opened on the outer wall of the connecting rod (19), a sliding block (25) being slidably sleeved on the inner wall of the spiral groove (26), and the sliding block (25) being fixedly connected to the inner wall of the connecting sleeve (23); The reset mechanism includes a spring (7) sleeved on the outer wall of the valve stem (10), and pressure plates (6) are fixedly sleeved on the outer wall of both the outer threaded sleeve (5) and the valve stem (10). The two ends of the spring (7) are fixedly connected to the two pressure plates (6) on their respective adjacent sides. A nut (13) is fixedly connected to the top of the support plate (4). The nut (13) is threaded on the outer wall of the outer threaded sleeve (5). A guide sleeve (8) is fixedly connected to the bottom of the pressure plate (6). The guide sleeve (8) is sleeved on the outer wall of the valve stem (10). A hollow shaft (9) is fixedly connected to the inner wall of the top cover (2). The hollow shaft (9) is sleeved on the outer wall of the valve stem (10). A piston ring (11) is slidably connected to the inner wall of the hollow shaft (9). The piston ring (11) is fixedly sleeved on the valve stem (10). A second channel (29) communicating with the hollow shaft (9) is opened on one side of the top cover (2). A first channel (17) communicating with the second channel (29) is opened on the top of the valve body (1). A guide bar (24) is fixedly connected to the bottom of the valve core (18).

2. The high-performance pressure regulating valve as described in claim 1, characterized in that, The bottom of the rotating plate (16) is fixedly connected to a fixing block (27) corresponding to the second through hole (21), and a rotating shaft (28) is fixedly connected to one side of the fixing block (27). An impeller (22) is rotatably sleeved on the outer wall of the rotating shaft (28).

3. The high-performance pressure regulating valve as described in claim 1, characterized in that, A limiting ring (30) is fixedly connected to the bottom of the piston ring (11). The limiting ring (30) is fixedly sleeved on the valve stem (10). The limiting ring (30) is flush with the second channel (29).

4. The high-performance pressure regulating valve as described in any one of claims 1-3, characterized in that, The top of the external threaded sleeve (5) is fixedly connected to a handwheel (12), and the outer wall of the handwheel (12) is provided with anti-slip texture.

Images