Pressure reducing valve with simple structure
By simplifying the design of the pressure reducing valve, the balance principle of water flow pressure and pressure regulating spring, combined with rubber pads and threaded connections, the pressure reducing effect is achieved with a simple structure, convenient installation and low cost, and the existing pressure reducing valve structure is solved and the complex structure is High cost issue.
Patent Information
- Application Number
- CN202420787900.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-16
AI Technical Summary
The existing pressure reducing valve has complex structure, many components, difficult assembly and high cost, and requires a simple structural improvement solution.
The pressure reducing valve design includes a shell, piston, pressure regulating spring and water duct, push the piston through the water flow pressure, adjust the gap between the water outlet hole and the cavity, balance the water flow pressure and spring force, achieve the pressure reduction effect, and pass the rubber pad and Threaded connection adjusts the water output and water pressure.
The pressure reduction effect is achieved with a simple structure, convenient installation and low cost, and the water output and water flow pressure are reduced until the water flow pressure and spring force are balanced, and the water flow reduction is completed.
Smart Images
Figure CN222255183U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a pressure reducing valve. Background Art
[0002] The general pressure reducing valve is composed of a pull rod, a gasket, a sealing ring, a pressure reducing spring, an adjusting screw plug, a nut, an adapter and other components. The principle is that the pull rod overcomes the pressure reducing spring through the water flow pressure, and the movement of the pull rod drives the sealing ring to move at the same time, thereby controlling the gap between the sealing ring and the sealing surface to finally achieve the pressure reducing effect. The pressure reducing valve of this structure has many components, complex assembly and high cost. Therefore, it is necessary to improve it. Summary of the invention
[0003] The utility model aims to solve the deficiencies and defects of the prior art and provides a pressure reducing valve with a simple structure.
[0004] The basic concept of the technical solution adopted by the utility model is: a pressure reducing valve with a simple structure, including a shell, one end of the shell is an inlet, and the other end of the shell is an outlet, characterized in that: the inlet is connected to a water inlet joint, a piston is arranged in the shell, a pressure regulating spring is arranged between the water inlet joint and the piston, a cavity is arranged in the middle of the piston, the water inlet joint has a protrusion, the protrusion is inserted into the cavity, a water outlet hole is arranged on the protrusion, and the piston has several water-passing grooves connecting the outlet and the cavity, and the water in the water outlet hole enters the outlet through the water-passing groove. When in use, the water flows from the water inlet joint into the cavity in the piston, and then flows to the outlet through the water-passing groove. The water pressure in the outlet will push the piston to move toward the water inlet joint, resulting in a reduction in the gap between the water outlet hole on the protrusion and the bottom of the cavity, which will reduce the water output and the water flow pressure in the outlet until the water flow pressure at the outlet is balanced with the force applied by the pressure regulating spring on the piston, thus completing the pressure reduction of the water flow. This pressure reducing valve has a simple structure, is easy to install, and has a low cost.
[0005] In the above technical solution, preferably, the bottom of the cavity has a groove, a rubber pad is arranged in the groove, and the rubber pad is arranged opposite to the water outlet hole on the protrusion. The water output can be affected by adjusting the distance between the rubber pad and the protrusion.
[0006] In the above technical solution, preferably, the bottom of the groove has a through hole.
[0007] In the above technical solution, preferably, the water inlet connector is connected to the inlet by a thread. In the threaded connection mode, the pressing force of the pressure regulating spring can be adjusted by adjusting the number of turns of the screw thread of the water inlet connector, thereby adjusting the water pressure at the outlet.
[0008] In the above technical solution, preferably, the outer ring of the piston has a circle of first sealing ring, and the first sealing ring is in close contact with the inner wall of the shell.
[0009] In the above technical solution, preferably, a second sealing ring is provided on the raised portion, and the second sealing ring is in close contact with the inner wall of the cavity.
[0010] In the above technical solution, preferably, a solenoid valve is connected to the outlet, and the solenoid valve controls the on-off of the water flow at the outlet.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] When in use, water flows from the water inlet joint into the cavity in the piston, and then flows to the outlet through the water channel. The water pressure in the outlet will push the piston toward the water inlet joint, resulting in a decrease in the gap between the water outlet hole on the raised part and the bottom of the cavity, which will reduce the water output and the water flow pressure in the outlet until the water flow pressure at the outlet is balanced with the force applied by the pressure regulating spring on the piston, thus completing the water flow pressure reduction. This pressure reducing valve has a simple structure, is easy to install, and has a low cost.
[0013] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a three-dimensional schematic diagram of the present invention.
[0015] Figure 2 It is a cross-sectional view of the present invention. DETAILED DESCRIPTION
[0016] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.
[0017] like Figure 1 to Figure 2 As shown, a pressure reducing valve with a simple structure comprises a housing 1, one end of the housing 1 is an inlet 11, the other end of the housing 1 is an outlet 12, the inlet 11 is connected to a water inlet joint 2, a piston 3 is arranged in the housing 1, and a pressure regulating spring 4 is arranged between the water inlet joint 2 and the piston 3. The middle of the piston 3 has a cavity 31, the water inlet joint 2 has a raised portion 21, the raised portion 21 is inserted into the cavity 31, the raised portion 21 has a water outlet 22, the piston 3 has a plurality of water grooves 32 connecting the outlet 12 and the cavity 31, and the water in the water outlet 22 enters the outlet 12 through the water grooves 32.
[0018] The bottom of the cavity 31 has a groove 311, and the bottom of the groove 311 has a through hole 313. A rubber pad 312 is arranged in the groove 311, and the rubber pad 312 is arranged opposite to the water outlet hole 22 on the protrusion 21. By adjusting the distance between the rubber pad and the protrusion, the water output can be affected.
[0019] The water inlet connector 2 is connected to the inlet 11 by threads. In the threaded connection mode, the pressing force of the pressure regulating spring can be adjusted by adjusting the number of turns of the screw thread of the water inlet connector, thereby adjusting the water pressure at the outlet.
[0020] The outer ring of the piston 3 has a first sealing ring 33 , and the first sealing ring is in close contact with the inner wall of the housing.
[0021] The protruding portion 21 is provided with a second sealing ring 211 , and the second sealing ring is in close contact with the inner wall of the cavity.
[0022] The outlet 12 is connected to a solenoid valve 4 , and the solenoid valve 4 controls the on / off of the water flow at the outlet 12 .
[0023] When in use, water flows from the water inlet joint into the cavity in the piston, and then flows to the outlet through the water channel. The water pressure in the outlet will push the piston toward the water inlet joint, resulting in a decrease in the gap between the water outlet hole on the raised part and the bottom of the cavity, which will reduce the water output and the water flow pressure in the outlet until the water flow pressure at the outlet is balanced with the force applied by the pressure regulating spring on the piston, thus completing the water flow pressure reduction. This pressure reducing valve has a simple structure, is easy to install, and has a low cost.
Claims
1. A pressure reducing valve with a simple structure, comprising a housing, one end of the housing being an inlet, and the other end of the housing being an outlet, characterized in that: The inlet is connected to a water inlet joint, a piston is arranged in the shell, a pressure-adjusting spring is arranged between the water inlet joint and the piston, a cavity is arranged in the middle of the piston, the water inlet joint has a protrusion, the protrusion is inserted into the cavity, a water outlet hole is arranged on the protrusion, and a plurality of water grooves connecting the outlet and the cavity are arranged on the piston, and the water in the water outlet hole enters the outlet through the water grooves.
2. A pressure reducing valve with a simple structure according to claim 1, characterized in that: The bottom of the cavity is provided with a groove, a rubber pad is arranged in the groove, and the rubber pad is arranged opposite to the water outlet hole on the protruding part.
3. A pressure reducing valve with a simple structure according to claim 2, characterized in that: The bottom of the groove is provided with a through hole.
4. A pressure reducing valve with a simple structure according to claim 1, characterized in that: The water inlet joint is connected to the inlet by threads.
5. A pressure reducing valve with a simple structure according to claim 1, characterized in that: The outer ring of the piston has a first sealing ring, and the first sealing ring is in close contact with the inner wall of the housing.
6. A pressure reducing valve with a simple structure according to claim 1, characterized in that: A second sealing ring is arranged on the protruding portion, and the second sealing ring is in close contact with the inner wall of the cavity.
7. A pressure reducing valve with a simple structure according to claim 1, characterized in that: The outlet is connected to a solenoid valve, which controls the on-off of the water flow at the outlet.