Pneumatic control valve for pneumatic massage system

Abstract

The utility model belongs to the technical field of pneumatic control valves, and discloses a pneumatic control valve for a pneumatic massage system, which comprises a valve body, an air inlet channel and an air outlet channel, the valve core is arranged in the shaft hole in the valve body; the reset mechanism is assembled between the valve core and the inner wall of the shaft hole; the air pressure nozzle is assembled at one end of the shaft hole in the valve body, and a sealing piece is assembled between the shaft hole and the air pressure nozzle; the air inlet nozzle is assembled at one end of the valve body and is communicated with the air inlet channel; a sealing piece is arranged between the air inlet nozzle and the air inlet channel; and the air outlet nozzle is assembled at one end of the valve body and is communicated with the air outlet channel. The pneumatic control valve is adopted for control, no abnormal sound is generated, comfort and quietness in the using process are guaranteed, and meanwhile the pneumatic control valve has the three functions of inflation, deflation and pressure maintaining.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pneumatic control valve technical field especially relates to a kind of for pneumatic massage system pneumatic control valve. BACKGROUND

[0002] In recent years, with the further improvement of the requirement of comfort of user, the massage function on seat is more and more popular, not only on sofa, but also used on vehicle seat.

[0003] At present, the massage instrument used on vehicle seat, adopts air path control mechanism to push and press the human body of occupant on seat. Electromagnetic valve coil is used in air path control mechanism to realize air path control.

[0004] The electromagnetic force generated after the energization of electromagnetic valve drives the displacement of internal valve core to realize the opening or closing of inflation air path. The specific structure of electromagnetic valve includes fixed valve core, movable valve core, coil, pin needle, spring, framework and rubber sealing element, and the movable valve core is gap fitted with the framework.

[0005] However, in the process of actual use, metal impact sound will be generated when fixed valve core and movable valve core are combined, which will cause obvious abnormal sound in comfort system, and people feel uncomfortable. Copper wire will heat after long-time work of electromagnetic valve, which leads to the decline of electromagnetic force, so as to cause defects such as poor sealing and insufficient inflation air path pressure. INVENTION CONTENTS

[0006] In order to solve the problems in the related art, the present application provides a kind of for pneumatic massage system pneumatic control valve, solve the defects mentioned in background art.

[0007] Technical scheme as follows:

[0008] A kind of for pneumatic massage system pneumatic control valve, including: valve body, the shaft hole is equipped in the valve body, and the air inlet channel and the air outlet channel are communicated with the shaft hole;Valve core, is equipped in the shaft hole in the valve body;Further include: reset mechanism, is assembled between the valve core and the inner wall of the shaft hole;Air pressure nozzle, is assembled in one end of the shaft hole in the valve body, and the air pressure nozzle is assembled between the shaft hole and the air pressure nozzle;Air inlet nozzle, is assembled in one end of the valve body, and is communicated with the air inlet channel;Sealing element is arranged between the air inlet nozzle and the air inlet channel;Air outlet nozzle, is assembled in one end of the valve body, and is communicated with the air outlet channel.

[0009] In further embodiments, the reset mechanism includes spring that is sleeved outside the valve core, one end of the spring is in contact with the bottom surface of the valve core head, and the other end of the spring is in contact with the inside of the shaft hole.

[0010] In further embodiments, a first O-shaped sealing ring is sleeved on the valve core.

[0011] In further embodiments, the bottom of the valve core is a sealing end head, which is sealed with the lower end tapered surface of the shaft hole.

[0012] In further embodiments, an internal boss is arranged on the valve body at the air outlet channel, and a diaphragm is sleeved on the internal boss; and the air outlet nozzle is press-connected on the diaphragm.

[0013] In further embodiments, the sealing member is a second O-shaped sealing ring arranged between the air inlet nozzle and the air inlet channel.

[0014] With the above technical scheme, compared with the prior art, the patent has the beneficial effects that:

[0015] The air control valve is used for control in the utility model, and no abnormal sound occurs, so that the comfort and quietness in use are ensured, and meanwhile, the air control valve has three functions of inflation, deflation and pressure maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings incorporated into the specification and forming a part thereof, illustrate embodiments consistent with the present utility model, and together with the description, serve to explain the principle of the present utility model.

[0017] Fig. 1 is the schematic diagram of the explosion type structure in the utility model.

[0018] Fig. 2 is the schematic diagram of the cross section structure in the utility model.

[0019] In the drawings:

[0020] 1, air pressure nozzle; 2, sealing member; 3, valve core; 4, first O-shaped sealing ring; 5, spring; 6, sealing end head; 7, air outlet nozzle; 8, diaphragm; 9, valve body; 10, second O-shaped sealing ring; 11, snap spring; 12, air inlet nozzle. DETAILED DESCRIPTION

[0021] 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 drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth 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.

[0022] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0023] 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 information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0024] Example

[0025] like Figs. 1-2 As shown, a pneumatic control valve for a pneumatic massage system includes a valve body 9, a shaft hole inside the valve body 9, and an air inlet channel and an air outlet channel communicating with the shaft hole.

[0026] The valve core 3 is located within the shaft hole of the valve body 9. A first O-ring seal 4 is fitted onto the valve core 3. The valve core 3 achieves a dynamic seal with the inner wall of the shaft hole through the first O-ring seal 4. The bottom of the valve core 3 is a sealing end 6, which seals with the lower conical surface of the shaft hole.

[0027] A 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 contacting the bottom surface of the head of the valve core 3, and the other end of the spring 5 contacting the inside of the shaft hole.

[0028] An installation step is provided on the inner wall of the mounting shaft hole of spring 5. The lower end of spring 5 abuts against the installation step. This installation method can ensure that the installation is firm and that spring 5 can work normally.

[0029] The air pressure nozzle 1 is assembled at one end of the shaft hole in the valve body 9, and the air pressure nozzle 1 is provided with a sealing element 2 between the shaft hole and the air pressure nozzle 1. The sealing element 2 is used to form a cavity between the shaft hole and the air pressure nozzle 1, which can deform with the change of air pressure. When the air pressure of the air pressure nozzle 1 is greater than the air pressure of the valve core 3 in the shaft hole, the cavity deforms to drive the valve core 3 to move towards the shaft hole. When the air pressure of the air pressure nozzle 1 is less than the air pressure of the valve core 3 in the shaft hole, the cavity deforms to drive the valve core 3 to move towards the air pressure nozzle 1. The sealing element 2 needs to seal the shaft hole and the air pressure nozzle 1. Considering the actual use, the sealing element 2 uses a leather cup.

[0030] The air inlet nozzle 12 is assembled at one end of the valve body 9 and communicates with the air inlet channel. A sealing element is arranged between the air inlet nozzle 12 and the air inlet channel. The air outlet nozzle 7 is assembled at one end of the valve body 9 and communicates with the air outlet channel. The sealing element is a second O-shaped sealing ring 10 arranged between the air inlet nozzle 12 and the air inlet channel.

[0031] The valve body 9 at the air outlet channel is provided with an internal boss, and the diaphragm 8 is sleeved on the internal boss. The air outlet nozzle 7 is press-connected on the diaphragm 8.

[0032] Working principle:

[0033] After the air pressure nozzle 1 is input with air pressure, the leather cup is depressed downward under the influence of the air pressure, the valve core 3 is pushed to move downward in the shaft hole, the air inlet channel and the air outlet channel are opened, and the O-shaped ring on the valve core 3 prevents the gas from flowing back to the cavity of the air pressure nozzle 1 part, and the gas only flows from the air inlet nozzle 12 to the air outlet nozzle 7. After the air pressure nozzle 1 is not input with air pressure, the spring 5 pushes the leather cup to reset, the sealing end 6 at the bottom end of the valve core 3 seals with the conical surface at the lower end of the shaft hole of the valve body 9, so as to cut off the channel between the air inlet nozzle 12 and the air outlet nozzle 7, and the gas in the whole massage system cannot flow.

[0034] The air pressure in the air pressure nozzle 1 provides the 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 with a gas storage component such as an air bag, the inflation function of the gas storage component can be realized. If the air pressure nozzle 1 is not input with air pressure, the valve core 3 is reset under the action of the spring 5, the air inlet nozzle 12 and the air outlet nozzle 7 are in a closed state, and the pressure maintaining function can be realized. Only if the air pressure nozzle 1 is input with air pressure, 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 gas storage component can be realized.

[0035] The air control valve is used for control, and abnormal sound does not occur, the comfort and quietness in the use process are guaranteed, meanwhile, the air control valve has three functions of inflation, deflation and pressure maintaining.

[0036] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0037] It is to be understood that the application is not limited to the precise construction hereinafter described and as shown in the attached drawings, and that various changes in form and detail can be made therein without departing from the application. The scope of the application should only be limited by the appended claims.

Claims

1. A pneumatic valve, comprising: a valve body, which is provided with a shaft hole, and an air inlet channel and an air outlet channel in communication with the shaft hole; a valve core, which is arranged in the shaft hole in the valve body; characterized in that it further comprises: a reset mechanism, which is arranged between the valve core and the inner wall of the shaft hole; an air pressure nozzle, which is arranged at one end of the shaft hole in the valve body, and a sealing element is arranged between the shaft hole and the air pressure nozzle; an air inlet nozzle, which is arranged at one end of the valve body and is in communication with the air inlet channel, and a sealing element is arranged between the air inlet nozzle and the air inlet channel; an air outlet nozzle, which is arranged at one end of the valve body and is in communication with the air outlet channel.

2. A gas control valve according to claim 1, wherein The reset mechanism comprises a spring, which is sleeved on the outside of the valve core, one end of the spring is in contact with the bottom surface of the head of the valve core, and the other end of the spring is in contact with the inside of the shaft hole.

3. A gas control valve according to claim 2, wherein A first O-shaped sealing ring is sleeved on the valve core.

4. A gas control valve according to claim 3, wherein The bottom of the valve core is a sealing end head, which is sealed with the lower end taper surface of the shaft hole.

5. A gas control valve according to claim 4, wherein An internal boss is arranged on the valve body at the air outlet channel, a diaphragm is sleeved on the internal boss, and the air outlet nozzle is crimped on the diaphragm.

6. A gas control valve according to claim 1, wherein The sealing element is a second O-shaped sealing ring arranged between the air inlet nozzle and the air inlet channel.

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