Pressure regulation and control type pressure reducing valve
By introducing a liftable rack and worm gear mechanism into the pressure reducing valve, combined with a pressure sensor, precise regulation of piston pressure is achieved, solving the problem that existing pressure reducing valves cannot know the pressure level in real time, and improving the stability of the pressure reducing valve.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG SHUIXUAN VALVE IND CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-05-19
AI Technical Summary
Existing pressure reducing valves cannot know the pressure adjustment level in real time during the adjustment process, which can easily lead to excessive or insufficient pressure and affect stability.
A pressure-regulating pressure reducing valve was designed. It uses a liftable bidirectional rack to drive a downward pressure regulating plate, combined with a pressure sensor and a worm gear mechanism, to achieve precise regulation of piston pressure. The pressure is controlled by the elastic deformation of the pressure regulating spring.
It achieves precise pressure regulation of the pressure reducing valve, improves operational stability and controllability, and avoids excessive or insufficient pressure.
Smart Images
Figure CN224260986U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of pressure reducing valves and relates to a pressure regulating type pressure reducing valve. Background Technology
[0002] A pressure reducing valve is a type of valve that adjusts the inlet pressure to the desired outlet pressure and maintains a stable outlet pressure by relying on the energy of the medium itself. Pressure reducing valves are widely used in the construction and energy sectors.
[0003] Existing pressure reducing valves primarily regulate pressure by adjusting a knob. However, during adjustment, the pressure cannot be accurately determined manually, leading to either excessively high or low pressure. To address this issue and ensure operational stability, we have designed a pressure-regulating pressure reducing valve. Summary of the Invention
[0004] The purpose of this invention is to provide a pressure-regulating pressure reducing valve to solve the problems mentioned in the background art.
[0005] The objective of this utility model can be achieved through the following technical solution: A pressure-regulating pressure reducing valve includes a valve body, a valve cover fixedly installed at the top of the valve body, a cap fixedly installed at the top of the valve cover, a piston nested inside the valve body, a pressure regulating spring nested inside the valve cover, the bottom end of the pressure regulating spring fixedly connected to the center of the top of the piston, an adjusting top plate fixedly installed at the top of the pressure regulating spring, a liftable bidirectional rack sleeved and connected to the valve cover at the top of the adjusting top plate, and a downward adjusting plate fixedly installed at the bottom of the bidirectional rack in contact with the adjusting top plate.
[0006] In the aforementioned pressure-regulating pressure reducing valve, a limit block is fixedly installed at the top of the bidirectional rack, and rotating shafts are rotatably connected to both sides of the inner wall of the valve cover. Gears are fixedly installed at one end of each of the two rotating shafts, and the two gears mesh with both sides of the bidirectional rack.
[0007] In the aforementioned pressure-regulating pressure reducing valve, worm gears are fixedly installed at the other ends of both rotating shafts, and a bidirectional worm is rotatably connected between the two sides of the inner wall of the valve cover. The two ends of the bidirectional worm are meshed with the worm gears, and a rotating handwheel is fixedly installed at one end of the bidirectional worm through the valve cover.
[0008] In the aforementioned pressure-regulating pressure-reducing valve, a sealing ring is fitted at the connection between the valve body and the piston.
[0009] In the aforementioned pressure-regulating pressure-reducing valve, an inclined valve plug is fixedly installed on one side of the valve body.
[0010] In the aforementioned pressure-regulating pressure reducing valve, a pressure sensor is fixedly installed at the contact position between the adjusting top plate and the lower adjusting plate.
[0011] In the aforementioned pressure-regulating pressure reducing valve, limit sliders are fixedly provided on both sides of the adjusting top plate, and limit grooves are provided on both sides of the inner wall of the valve cover. The two limit sliders are slidably connected to the corresponding limit grooves.
[0012] In the aforementioned pressure-regulating pressure reducing valve, a bottom cover is fixedly installed at the bottom end of the valve body, a valve core is fixedly installed at the bottom end of the piston, and the valve core is fixedly connected to the top end of the bottom cover.
[0013] Compared with the prior art, the advantages of the pressure regulating valve of this utility model are as follows: the lower pressure regulating plate is driven to rise and fall by a liftable bidirectional rack, and the pressure regulating spring is compressed by the rise and fall of the lower pressure regulating plate. The pressure of the piston is regulated by controlling the compression state of the pressure regulating spring, thereby facilitating the pressure regulation of the pressure regulating valve. Attached Figure Description
[0014] Figure 1 This is a structural schematic diagram of a pressure regulating pressure reducing valve according to this utility model.
[0015] Figure 2 This is a cross-sectional structural diagram of a pressure regulating pressure reducing valve according to this utility model.
[0016] Figure 3 This utility model relates to a pressure regulating type pressure reducing valve. Figure 2 Enlarged view of a portion of point A in the middle.
[0017] In the diagram, 1. Valve body; 2. Valve cover; 3. Cap; 4. Valve plug; 5. Rotary handwheel; 6. Bottom cover; 7. Valve core; 8. Piston; 9. Pressure adjusting spring; 10. Adjusting top plate; 11. Limiting slide groove; 12. Limiting slider; 13. Downward adjusting plate; 14. Double-direction rack; 15. Sealing ring; 16. Limiting block; 17. Rotating shaft; 18. Worm gear; 19. Gear; 20. Double-direction worm. Detailed Implementation
[0018] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0019] like Figure 1-3As shown, this utility model discloses a pressure regulating pressure reducing valve, including a valve body 1, a valve cover 2 fixedly installed on the top of the valve body 1, a cap 3 fixedly installed on the top of the valve cover 2, a piston 8 nested inside the valve body 1, a pressure regulating spring 9 nested inside the valve cover 2, the bottom end of the pressure regulating spring 9 fixedly connected to the center of the top of the piston 8, an adjusting top plate 10 fixedly installed on the top of the pressure regulating spring 9, a liftable bidirectional rack 14 sleeved and connected to the valve cover 2 on the top of the adjusting top plate 10, and a downward adjusting plate 13 fixedly installed at the bottom of the bidirectional rack 14 in contact with the adjusting top plate 10.
[0020] Specifically, the lifting and lowering bidirectional rack 14 drives the lower pressure adjustment plate 13 to rise and fall. The rising and falling of the lower pressure adjustment plate 13 compresses the pressure adjustment spring 9, and the pressure adjustment of the piston 8 is achieved by controlling the compression state of the pressure adjustment spring 9, thereby facilitating the pressure adjustment of the pressure reducing valve.
[0021] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model discloses a pressure regulating pressure reducing valve. A limit block 16 is fixedly installed at the top of a bidirectional rack 14. Rotary shafts 17 are rotatably connected to both sides of the inner wall of the valve cover 2. Gears 19 are fixedly installed at one end of each of the two rotating shafts 17. The two gears 19 are meshed with both sides of the bidirectional rack 14. Worm gears 18 are fixedly installed at the other end of each of the two rotating shafts 17. A bidirectional worm 20 is rotatably connected between the two sides of the inner wall of the valve cover 2. Both ends of the bidirectional worm 20 are meshed with the worm gears 18. A rotating handwheel 5 is fixedly installed at one end of the bidirectional worm 2 through the valve cover 2.
[0022] Specifically, rotating the handwheel 5 drives the bidirectional worm gear 20 to rotate, which in turn drives the two worm wheels 18 to rotate, which in turn drives the rotating shaft 17 to rotate, which in turn drives the gear 19 to rotate, which in turn drives the bidirectional rack 14 to rise and fall, which in turn drives the lower pressure adjusting plate 13 to compress the elastic deformation of the pressure adjusting spring 9.
[0023] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model discloses a pressure regulating pressure reducing valve, wherein a sealing ring 15 is sleeved and connected at the connection between the valve body 1 and the piston 8.
[0024] Specifically, the sealing ring 15 improves the sealing performance between the valve body 1 and the piston 8.
[0025] A valve plug 4 is fixedly installed on one side of the valve body 1 at an angle.
[0026] A pressure sensor is fixedly installed at the contact position between the top plate 10 and the lower adjustment plate 13.
[0027] Specifically, the pressure sensor can detect the pressure of the downward adjustment plate 13 on the adjustment top plate 10 in real time.
[0028] Limiting sliders 12 are fixedly provided on both sides of the adjusting top plate 10, and limiting grooves 11 are opened on both sides of the inner wall of the valve cover 2. The two limiting sliders 12 are slidably connected to the corresponding limiting grooves 11.
[0029] Specifically, the limiting slider 12 and the limiting groove 11 work together to limit and guide the lifting and lowering of the adjusting top plate 10.
[0030] A bottom cover 6 is fixedly installed at the bottom end of the valve body 1, and a valve core 7 is fixedly installed at the bottom end of the piston 8. The valve core 7 is fixedly connected to the top end of the bottom cover 6.
[0031] Specifically, the bottom cover 6 facilitates the encapsulation of the valve core 7.
[0032] In specific implementation, when it is necessary to adjust the pressure of the pressure reducing valve, the handwheel 5 is first manually rotated. Rotating the handwheel 5 drives the bidirectional worm gear 20 to rotate, which in turn drives the two worm wheels 18 to move in opposite directions. The rotation of the worm wheels 18 drives the rotating shaft 17 to rotate, which in turn drives the gear 19 to rotate. The rotation of the two gears 19 drives the bidirectional rack 14 to rise and fall, which in turn drives the lower pressure adjusting plate 13 to rise and fall. During the rising and falling process, the lower pressure adjusting plate 13 pushes the adjusting top plate 10 to rise and fall. By adjusting the rise and fall of the top plate 10, the compression state of the pressure regulating spring 9 is controlled. At the same time, the pressure sensor installed on the top of the adjusting top plate 10 can monitor the pressure of the lower pressure adjusting plate 13 on the adjusting top plate 10 in real time, and the pressure of the pressure reducing valve can be adjusted as needed.
[0033] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.
Claims
1. A pressure-regulating pressure reducing valve, comprising a valve body (1), wherein a valve cover (2) is fixedly mounted on the top end of the valve body (1), and a cap (3) is fixedly mounted on the top end of the valve cover (2), characterized in that, A piston (8) is nested inside the valve body (1), and a pressure regulating spring (9) is nested inside the valve cover (2). The bottom end of the pressure regulating spring (9) is fixedly connected to the center of the top end of the piston (8). An adjusting top plate (10) is fixedly installed on the top end of the pressure regulating spring (9). A liftable bidirectional rack (14) is provided on the top end of the adjusting top plate (10) and is sleeved and connected to the valve cover (2). A downward adjusting plate (13) is fixedly installed on the bottom end of the bidirectional rack (14) and is in contact with the adjusting top plate (10).
2. The pressure-regulating pressure reducing valve according to claim 1, characterized in that, A limit block (16) is fixedly installed at the top of the bidirectional rack (14), and a rotating shaft (17) is rotatably connected to both sides of the inner wall of the valve cover (2). A gear (19) is fixedly installed at one end of each of the two rotating shafts (17), and the two gears (19) mesh with both sides of the bidirectional rack (14).
3. The pressure-regulating pressure reducing valve according to claim 2, characterized in that, The other ends of the two shafts (17) are fixedly mounted with worm gears (18). A bidirectional worm (20) is rotatably connected between the two sides of the inner wall of the valve cover (2). The two ends of the bidirectional worm (20) are meshed with the worm gears (18). One end of the bidirectional worm (20) passes through the valve cover (2) and is fixedly mounted with a rotating handwheel (5).
4. The pressure-regulating pressure reducing valve according to claim 1, characterized in that, A sealing ring (15) is fitted at the connection between the valve body (1) and the piston (8).
5. A pressure-regulating pressure reducing valve according to claim 4, characterized in that, A valve plug (4) is fixedly installed on one side of the valve body (1) at an angle.
6. A pressure-regulating pressure reducing valve according to claim 1, characterized in that, A pressure sensor is fixedly installed at the contact position between the top plate (10) and the bottom plate (13).
7. A pressure-regulating pressure reducing valve according to claim 6, characterized in that, Limiting sliders (12) are fixedly provided on both sides of the adjusting top plate (10), and limiting grooves (11) are opened on both sides of the inner wall of the valve cover (2). The two limiting sliders (12) are slidably connected to the corresponding limiting grooves (11).
8. A pressure-regulating pressure reducing valve according to claim 5, characterized in that, A bottom cover (6) is fixedly installed at the bottom end of the valve body (1), and a valve core (7) is fixedly installed at the bottom end of the piston (8). The valve core (7) is fixedly connected to the top end of the bottom cover (6).