Pneumatic control valve for pneumatic massage system
By designing an air-controlled valve for pneumatic massage system, the valve core displacement is used to drive the valve core to control the opening and closing of the air path, combined with the spring return mechanism, the abnormal sound and poor sealing problems of the solenoid valve are solved, and the combination of comfort and silence and inflation, deflation and pressure holding functions are achieved.
Patent Information
- Application Number
- CN202510056596.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2025-03-28
AI Technical Summary
In the pneumatic massage system on existing vehicle seats, the solenoid valve will produce metal impact sound after working for a long time, resulting in reduced comfort, and the copper wire heats up and the electromagnetic force will decrease, resulting in poor sealing and insufficient pressure on the inflatable air path.
An air-controlled valve for pneumatic massage system is designed, including a valve body, valve core, reset mechanism, air pressure nozzle, air intake nozzle and air outlet nozzle. The air pressure nozzle drives the displacement of the valve core to control the opening and closing of the air circuit, and a spring return mechanism is used to ensure the stability of the valve core.
The air-controlled valve does not produce strange sounds during use, ensuring comfort and quietness, and has three functions: inflation, deflation and pressure-keeping, solving the problems of strange sounds and poor sealing of the solenoid valve.
Smart Images
Figure CN119712936A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of air-controlled valves, and in particular relates to an air-controlled valve for a pneumatic massage system. Background Art
[0002] In recent years, as users' requirements for comfort have further increased, massage functions on seats have become more and more popular, not only on sofas, but also on vehicle seats.
[0003] At present, massage instruments used on vehicle seats mostly use air circuit control mechanisms to push and massage the body of the occupant on the seat. The air circuit control mechanisms mostly use electromagnetic valve coils to achieve air circuit control.
[0004] The electromagnetic force generated by the solenoid valve after power is turned on drives the displacement of the internal moving valve core to open or close the inflation gas circuit. The specific structure of the solenoid valve includes a fixed valve core, a moving valve core, a coil, a pin needle, a spring, a frame and a rubber seal, and the moving valve core and the frame are matched with each other.
[0005] However, during actual use, a metal collision sound will be generated when the fixed and moving valve cores are combined, and there will be obvious abnormal noise when used in the comfort system, which will make people feel uncomfortable; the copper wire of the solenoid valve will heat up after working for a long time, resulting in a decrease in electromagnetic force, which will cause defects such as poor sealing and insufficient inflation air circuit pressure. Summary of the invention
[0006] In order to solve the problems in the related art, the present application provides an air-controlled valve for a pneumatic massage system, which solves the defects mentioned in the background technology.
[0007] The technical solution is as follows: A pneumatic control valve for a pneumatic massage system, comprising: a valve body, wherein the valve body is provided with an axial hole, and an air inlet channel and an air outlet channel connected to the axial hole; a valve core, which is arranged in the axial hole in the valve body; and also comprising: a reset mechanism, which is assembled between the valve core and the inner wall of the axial hole; an air pressure nozzle, which is assembled at one end of the axial hole in the valve body, and a sealing member is assembled between the axial hole and the air pressure nozzle; an air inlet nozzle, which is assembled at one end of the valve body and connected to the air inlet channel; a sealing member is arranged between the air inlet nozzle and the air inlet channel; and an air outlet nozzle, which is assembled at one end of the valve body and connected to the air outlet channel.
[0008] In a further embodiment, the reset mechanism includes a spring sleeved on the outside of the valve core, one end of the spring contacts the bottom surface of the valve core head, and the other end of the spring contacts the inside of the shaft hole.
[0009] In a further embodiment, a first O-ring is sleeved on the valve core.
[0010] In a further embodiment, the bottom of the valve core is a sealing end head, and the sealing end head is sealed with the lower end conical surface of the shaft hole.
[0011] In a further embodiment, an internal boss is provided on the valve body at the air outlet channel, a diaphragm is sleeved on the internal boss; and the air outlet nozzle is crimped onto the diaphragm.
[0012] In a further embodiment, the sealing member is a second O-ring provided between the air inlet nozzle and the air inlet passage.
[0013] By adopting the above technical solution, compared with the prior art, the beneficial effects of the technology of this patent are: The present invention adopts an air-controlled valve for control, and no abnormal sound occurs, thereby ensuring comfort and quietness during use. At the same time, the air-controlled valve in the present invention has three functions of inflation, deflation and pressure maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.
[0015] Figure 1 It is a schematic diagram of the explosive structure in the present invention.
[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention.
[0017] In the figure: 1. Air pressure nozzle; 2. Sealing part; 3. Valve core; 4. First O-ring; 5. Spring; 6. Sealing end; 7. Air outlet nozzle; 8. Diaphragm; 9. Valve body; 10. Second O-ring; 11. Circlip; 12. Air inlet nozzle. DETAILED DESCRIPTION
[0018] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.
[0019] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.
[0020] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0021] Example
[0022] like Figure 1-2 As shown, an air-controlled valve for a pneumatic massage system includes a valve body 9, in which an axial hole is provided, and an air inlet channel and an air outlet channel communicated with the axial hole.
[0023] The valve core 3 is arranged in the shaft hole in the valve body 9. A first O-ring 4 is sleeved on the valve core 3. The valve core 3 realizes dynamic sealing with the inner wall of the shaft hole through the first O-ring 4. The bottom of the valve core 3 is a sealing end 6, which is sealed with the lower end conical surface of the shaft hole.
[0024] The reset mechanism is assembled between the valve core 3 and the inner wall of the shaft hole. The reset mechanism includes a spring 5 sleeved on the outside of the valve core 3, one end of the spring 5 contacts the bottom surface of the head of the valve core 3, and the other end of the spring 5 contacts the inside of the shaft hole.
[0025] An installation step is provided on the inner wall of the installation shaft hole of the spring 5 , and the lower end of the spring 5 abuts against the installation step. Such an installation method can ensure a firm installation and ensure the normal operation of the spring 5 .
[0026] The air pressure nozzle 1 is assembled at one end of the axial hole in the valve body 9, and a sealing part 2 is assembled between the axial hole and the air pressure nozzle 1. The purpose of the sealing part 2 is to form a cavity between the axial hole and the air pressure nozzle 1 that can deform with the change of air pressure. The air pressure in the area of the air pressure nozzle 1 is greater than the air pressure in the area of the valve core 3 in the axial hole, and the deformation of the cavity drives the valve core 3 to move toward the axial hole. The air pressure in the area of the air pressure nozzle 1 is less than the air pressure in the area of the valve core 3 in the axial hole, and the deformation of the cavity drives the valve core 3 to move toward the air pressure nozzle 1. What the sealing part 2 needs is sealing to separate the axial hole from the air pressure nozzle 1. Considering the actual use, the sealing part 2 uses a leather cup.
[0027] The air inlet nozzle 12 is mounted on one end of the valve body 9 and communicates with the air inlet passage. A sealing member is provided between the air inlet nozzle 12 and the air inlet passage. The air outlet nozzle 7 is mounted on one end of the valve body 9 and communicates with the air outlet passage. The sealing member is a second O-ring 10 provided between the air inlet nozzle 12 and the air inlet passage.
[0028] An internal boss is provided on the valve body 9 at the air outlet passage, and a diaphragm 8 is sleeved on the internal boss. An air outlet nozzle 7 is pressed on the diaphragm 8.
[0029] Working principle: When air pressure is input to the air pressure nozzle 1, the leather cup will be depressed downwards due to the air pressure, pushing the valve core 3 to move downwards in the shaft hole, so that the air inlet and outlet channels are opened. The O-ring on the valve core 3 prevents the gas from flowing back into the cavity of the air pressure nozzle 1, and the gas will only flow from the air inlet nozzle 12 to the air outlet nozzle 7. When there is no air pressure input to the air pressure nozzle 1, the spring 5 will push the leather cup to reset, and the sealing end 6 at the bottom of the valve core 3 will seal with the conical surface at the lower end of the shaft hole of the valve body 9, thereby cutting off the channel between the air inlet nozzle 12 and the air outlet nozzle 7, and no gas will flow in the entire massage system.
[0030] The air pressure in the air pressure nozzle 1 provides downward pressure, so that the air inlet nozzle 12 and the air outlet nozzle 7 are in an open state. If the air outlet nozzle 7 is connected to an air storage component such as an air bag, the inflation function of the air storage component can be realized. If there is no air pressure input to the air pressure nozzle 1, the valve core 3 is reset by the force of the spring 5, and the air inlet nozzle 12 and the air outlet nozzle 7 are in a closed state, and the pressure holding function can be realized. If only the air pressure nozzle 1 has air pressure input, the valve core 3 moves downward, so that the air inlet nozzle 12 and the air outlet nozzle 7 are in an open state, and the deflation function of the air storage component can be realized.
[0031] The present invention adopts an air-controlled valve for control, and no abnormal sound occurs, thereby ensuring comfort and quietness during use. At the same time, the air-controlled valve in the present invention has three functions of inflation, deflation and pressure maintenance.
[0032] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention invented herein. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not invented by the present invention. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present invention are indicated by the appended claims.
[0033] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims
1. A gas-controlled valve, comprising: A valve body, wherein the valve body is provided with an axial hole, and an air inlet passage and an air outlet passage communicated with the axial hole; A valve core is arranged in the shaft hole in the valve body; It is characterized by further comprising: A reset mechanism, assembled between the valve core and the inner wall of the shaft hole; An air pressure nozzle is mounted on one end of the shaft hole in the valve body, and a sealing member is mounted between the shaft hole and the air pressure nozzle; An air inlet nozzle is mounted at one end of the valve body and communicated with the air inlet passage; a sealing member is provided between the air inlet nozzle and the air inlet passage; An air outlet nozzle is assembled at one end of the valve body and communicated with the air outlet passage.
2. The gas-controlled valve according to claim 1, characterized in that: The reset mechanism comprises a spring sleeved on the outside of the valve core, one end of the spring contacts the bottom surface of the valve core head, and the other end of the spring contacts the inside of the shaft hole.
3. The gas-controlled valve according to claim 2, characterized in that: The valve core is sleeved with a first O-shaped sealing ring.
4. The gas-controlled valve according to claim 3, characterized in that: The bottom of the valve core is a sealing end head, and the sealing end head is sealed with the lower end conical surface of the shaft hole.
5. The gas-controlled valve according to claim 4, characterized in that: An internal boss is provided on the valve body at the air outlet passage, a diaphragm is sleeved on the internal boss; and the air outlet nozzle is pressed onto the diaphragm.
6. The gas-controlled valve according to claim 1, characterized in that: The sealing member is a second O-ring disposed between the air inlet nozzle and the air inlet passage.