Compact-structure proportional valve
By optimizing the structural design and component connections, simplifying the fluid flow channel, and using electromagnets to control the piston position, the problems of low connection efficiency and control lag in compact proportional valves are solved, achieving efficient fluid regulation and precise control.
Patent Information
- Application Number
- CN202520613294.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-04-02
AI Technical Summary
Compact proportional valves are inefficient and complex in structure when connected to control elements. Fluid flow speed and direction are easily affected, and control signal regulation is lagging, which affects control accuracy.
A compact proportional valve was designed, comprising a valve body, pressure relief pipe, mounting knob, fixed threaded pipe, connecting pipe, sealing ring, and other components. The internal structure is simplified, fluid flow is optimized through a piston and flow channel, and the piston position is controlled by an electromagnet to achieve timely fluid output and diversion.
It improves installation efficiency, ensures smooth fluid flow, reduces adjustment lag, and enhances the control accuracy of control components.
Smart Images
Figure CN223868651U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of proportional valve technology, specifically to a compact proportional valve. Background Technology
[0002] A proportional valve is a type of valve that achieves precise control by adjusting the flow rate or pressure of a fluid. Its working principle involves adjusting the valve opening based on the input control signal, thereby precisely controlling the flow rate, pressure, or direction of the fluid. Proportional valves are commonly used in automation, hydraulic, and pneumatic systems, especially in applications requiring high-precision control, such as industrial robots, automobiles, and aerospace. Through precise electrical signal control, they can achieve fine-tuning of flow rate or pressure, adapting to systems with significant dynamic changes. They can quickly adjust flow rate or pressure, are suitable for various fluid control needs, and provide flexible solutions.
[0003] For smaller control components, proportional valves have a compact design and small size. However, typical compact proportional valves are not easy to connect with corresponding control components, and installation can be time-consuming, significantly reducing work efficiency. In use, the internal structure of typical compact proportional valves is relatively complex, which can easily affect the flow speed and direction of fluid. When a control signal is issued, it is difficult for the regulating fluid to be output and diverted in a timely manner, resulting in regulation lag and affecting the control accuracy of the control component. To address the above problems, a compact proportional valve is proposed to solve them. Utility Model Content
[0004] To address the aforementioned technical problems, a compact proportional valve is provided. This addresses the issues of current proportional valve designs being too compact for smaller control components, resulting in difficult connection with corresponding control components, time-consuming installation, and reduced work efficiency. Furthermore, the complex internal structure of typical compact proportional valves can easily affect fluid flow speed and direction, making it difficult for the regulating fluid to be output and diverted in a timely manner when a control signal is issued, leading to regulation lag and affecting the control accuracy of the control components.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a compact proportional valve, comprising a valve body, a pressure relief pipe fixedly connected to the lower side of the valve body, an installation knob rotatably connected to the center position of the left side of the valve body, a fixed threaded pipe fixedly connected to the left side of the installation knob, a connecting pipe fixedly connected to the upper side of the valve body, a connecting member fixedly connected to the upper side of the connecting pipe, a sealing ring fixedly connected inside the connecting member, a connecting threaded pipe threaded inside the sealing ring, a connecting knob fixedly connected to the upper side of the connecting threaded pipe, a drain pipe fixedly connected to the upper side of the connecting knob, an adjustment groove opened in the middle position inside the valve body, a piston slidably connected to the left side inside the adjustment groove, a first flow channel opened at the upper end inside the valve body, a second flow channel opened at the lower end inside the valve body, annular grooves opened at both ends of the surface of the piston, an inlet channel opened at the center position of the left side of the piston, and a through-hole opened on both the upper and lower sides of the annular groove.
[0006] Preferably, the lower left and right ends of the first flow channel are connected to the interior of the regulating groove, and the upper side of the first flow channel is connected to the interior of the connecting pipe through the connecting groove.
[0007] Preferably, the upper left and right ends of the second flow channel are connected to the interior of the regulating groove, and the lower side of the second flow channel is connected to the interior of the pressure relief pipe through the connecting groove.
[0008] Preferably, an external port is provided at the center of the right side of the valve body.
[0009] Preferably, a control valve is fixedly installed on the pressure relief pipe.
[0010] Preferably, an electromagnet is fixedly connected to the right side of the inside of the adjusting groove, and a connecting plate is fixedly connected to the center position of the left side of the electromagnet.
[0011] Preferably, a spring is fixedly connected to the left side of the connecting plate, and the left end of the spring is fixedly connected to the right side of the piston.
[0012] Compared with the prior art, the advantages of this utility model are as follows: By setting an installation knob, a fixed threaded pipe, a connecting pipe, a connector, a sealing ring, a connecting threaded pipe, a connecting knob, and a drain pipe, this utility model can facilitate the connection of the proportional valve with the corresponding control element, effectively reducing the time spent on installation work and greatly improving work efficiency. By setting an adjusting groove, a piston, a first flow channel, a second flow channel, an annular groove, a liquid inlet channel, and a connecting hole, the internal structure is effectively simplified, preventing the flow speed and direction of the fluid from being affected. When the control signal is issued, the adjusting fluid can be output and diverted in a timely manner, avoiding adjustment lag and ensuring the control accuracy of the control element. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a schematic diagram of the internal structure of this utility model.
[0015] The numbers on the map are:
[0016] 1. Valve body; 2. External port; 3. Pressure relief pipe; 4. Control valve; 5. Mounting knob; 6. Fixed threaded pipe; 7. Connecting pipe; 8. Connecting piece; 9. Sealing ring; 10. Connecting threaded pipe; 11. Connecting knob; 12. Drain pipe; 13. Adjusting groove; 14. Electromagnet; 15. Connecting plate; 16. Spring; 17. Piston; 18. First flow channel; 19. Second flow channel; 20. Annular groove; 21. Liquid inlet channel; 22. Connecting hole. Detailed Implementation
[0017] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.
[0018] Reference Figure 1-2 As shown, a compact proportional valve includes a valve body 1, an external port 2 located at the center of the right side of the valve body 1, a pressure relief pipe 3 fixedly connected to the lower side of the valve body 1, and a control valve 4 fixedly installed on the pressure relief pipe 3 to control the diversion of fluid.
[0019] Specifically, an installation knob 5 is rotatably connected to the center of the left side of the valve body 1. A fixed threaded pipe 6 is fixedly connected to the left side of the installation knob 5 for easy installation of the valve body 1. A connecting pipe 7 is fixedly connected to the upper side of the valve body 1. A connecting piece 8 is fixedly connected to the upper side of the connecting pipe 7. A sealing ring 9 is fixedly connected inside the connecting piece 8. A connecting threaded pipe 10 is threadedly connected inside the sealing ring 9. A connecting knob 11 is fixedly connected to the upper side of the connecting threaded pipe 10 for easy installation of the valve body 1. A drain pipe 12 is fixedly connected to the upper side of the connecting knob 11. An adjustment groove 13 is opened in the middle of the interior of the valve body 1. An electromagnet 14 is fixedly connected to the right side of the interior of the adjustment groove 13, which can change the position of the piston 17 by magnetic force. A connecting plate 15 is fixedly connected to the center of the left side of the electromagnet 14 to control the fluid output. A spring 16 is fixedly connected to the left side of the connecting plate 15. The left end of the spring 16 is fixedly connected to the right side of the piston 17 for easy reset of the piston 17.
[0020] Specifically, a piston 17 is slidably connected to the left side of the regulating groove 13. A first flow channel 18 is provided at the upper end of the valve body 1. The lower left and right ends of the first flow channel 18 are connected to the interior of the regulating groove 13. The upper side of the first flow channel 18 is connected to the interior of the connecting pipe 7 through a connecting groove. A second flow channel 19 is provided at the lower end of the valve body 1. The upper left and right ends of the second flow channel 19 are connected to the interior of the regulating groove 13. The lower side of the second flow channel 19 is connected to the interior of the pressure relief pipe 3 through a connecting groove to optimize the flow direction of the fluid. Annular grooves 20 are provided at both the left and right ends of the surface of the piston 17. An inlet channel 21 is provided at the center of the left side of the piston 17. A connecting hole 22 is provided through the upper and lower sides of the annular groove 20.
[0021] Working principle: During installation, rotate the installation knob 5 to connect the fixed threaded pipe 6 to the corresponding fluid input device and the drain pipe 12 to the corresponding output port. Rotate the connection knob 11 to connect the connecting threaded pipe 10 and the connecting pipe 7 inside the connector 8. The external port 2 is connected to the command output terminal of the control element. The fluid enters the regulating groove 13 through the fixed threaded pipe 6, and then enters the annular groove 20 through the inlet channel 21 and the connecting hole 22. The control command controls the working state of the electromagnet 14 in the form of an electrical signal, changing the magnetic force of the electromagnet 14. The piston 17 slides left and right under the action of the magnetic force. When the annular groove 20 moves to the connection point of the first flow channel 18 and the second flow channel 19, the fluid flows into the drain pipe 12 through the upper connecting groove for fluid output. If it is necessary to reduce the fluid output flow rate and pressure, the opening and closing state of the control valve 4 can be changed by an electrical signal, and part of the fluid flows to the pressure relief pipe 3 to effectively divert the fluid.
[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A compact proportional valve, comprising a valve body (1), characterized in that: A pressure relief pipe (3) is fixedly connected to the lower side of the valve body (1). An installation knob (5) is rotatably connected to the center of the left side of the valve body (1). A fixed threaded pipe (6) is fixedly connected to the left side of the installation knob (5). A connecting pipe (7) is fixedly connected to the upper side of the valve body (1). A connecting piece (8) is fixedly connected to the upper side of the connecting pipe (7). A sealing ring (9) is fixedly connected inside the connecting piece (8). A connecting threaded pipe (10) is threaded inside the sealing ring (9). A connecting knob (11) is fixedly connected to the upper side of the connecting threaded pipe (10). 1) is fixedly connected to the upper side of the valve body (1), and an adjustment groove (13) is provided in the middle of the valve body (1). A piston (17) is slidably connected to the left side of the adjustment groove (13). A first flow channel (18) is provided at the upper end of the valve body (1), and a second flow channel (19) is provided at the lower end of the valve body (1). An annular groove (20) is provided on both the left and right ends of the surface of the piston (17). An inlet channel (21) is provided at the center of the left side of the piston (17). A connecting hole (22) is provided through the upper and lower sides of the annular groove (20).
2. The compact proportional valve according to claim 1, characterized in that: The lower left and right ends of the first flow channel (18) are connected to the interior of the regulating groove (13), and the upper side of the first flow channel (18) is connected to the interior of the connecting pipe (7) through the connecting groove.
3. The compact proportional valve according to claim 1, characterized in that: The upper left and right ends of the second flow channel (19) are connected to the interior of the regulating groove (13), and the lower side of the second flow channel (19) is connected to the interior of the pressure relief pipe (3) through the connecting groove.
4. The compact proportional valve according to claim 1, characterized in that: An external port (2) is provided at the center of the right side of the valve body (1).
5. A compact proportional valve according to claim 1, characterized in that: A control valve (4) is fixedly installed on the pressure relief pipe (3).
6. A compact proportional valve according to claim 1, characterized in that: An electromagnet (14) is fixedly connected to the right side of the inside of the adjustment groove (13), and a connecting plate (15) is fixedly connected to the center of the left side of the electromagnet (14).
7. A compact proportional valve according to claim 6, characterized in that: A spring (16) is fixedly connected to the left side of the connecting plate (15), and the left end of the spring (16) is fixedly connected to the right side of the piston (17).