Electromagnetic valve device for controlling inflation and deflation of air bag

Abstract

The utility model discloses a solenoid valve device used for controlling inflation and deflation of an air bag, which comprises the air bag and an air pump, a first control valve used for inflation is arranged between the air bag and the air pump, the first control valve has a first working state and a second working state, the first control valve is provided with a port A, a port B and a port C, when the first control valve is in a first working state, the port A and the port C are communicated, and the port A and the port B are disconnected; and when the first control valve is in a second working state, the port A is communicated with the port B, and the port A is cut off from the port C. The air pump has the advantages that the air pump, the first control valve and the second control valve are arranged in a matched mode, so that the air pump is more stable; the first control valve is switched between the first working state and the second working state, the second control valve is switched between the third working state and the fourth working state, and the air pump is switched between different states through switching of the first control valve between the first working state and the second working state, switching of the second control valve between the third working state and the fourth working state and switching of opening and closing of the air pump.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pneumatic component technical field, especially relate to a solenoid valve device for air bag inflation and deflation control. BACKGROUND

[0002] Air bag is the common massage element in the massager, for example, the air bag of massage chair is the device that some parts of human body are extruded and massaged through inflation and deflation, it can simulate the strength and rhythm of hand, reaches the effect of relaxing muscle and promoting blood circulation, and air bag is the muscle of massage chair, decides the massage part and effect, air bag can carry out the package formula or point formula press to the parts such as arm, leg, hip, etc., and it is mainly divided into shoulder, arm, waist, hip and leg.

[0003] In the prior art, the air source is usually inflated and deflated by the solenoid valve of the air pump, through the retrieval, Chinese utility model patent (authorized announcement number: CN213598132U) provides a kind of inflation and deflation device, including inflation pump and the gas path reversing valve being communicated with inflation pump, gas path reversing valve has inflatable gas path and deflation gas path that can be switched to each other, inflation pump realizes inflation or deflation by the gas path switching in gas path reversing valve, and inflation pump includes: piston cylinder, including cylinder body, piston, piston rod, wherein, piston has air passage on it;Drive assembly is used to drive piston to reciprocate;First elastic sealing part has the state of opening air passage when piston cylinder inhales and the closed state of closing air passage when piston cylinder exhausts;Second elastic sealing part has the closed state of closing cylinder body outlet when piston cylinder inhales and the open state of opening cylinder body outlet when piston cylinder exhausts.The inflation and deflation device in the utility model is used by the cooperation of gas path reversing valve and inflation pump, and inflation and deflation can be realized by switching inflatable gas path and deflation gas path, not only can control cost, but also have the characteristics of convenient operation and flexible use.

[0004] And the inflation and deflation device in the prior art realizes the functions of inflation and deflation by the cooperation of gas path reversing valve and air pump, but in addition to the above two functions, other functions that can be realized are less, for example, the speed of deflation cannot be adjusted when air bag deflates, and the speed of deflation is determined by the size of exhaust port, and the overall structure is relatively complex, so the above shortcomings need to be improved. UTILITY MODEL CONTENTS

[0005] The utility model aims at the above problems, and provides a solenoid valve device for air bag inflation and deflation control, which has the advantages of diversified functions and adjustable exhaust speed.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: including air bag and air pump, be equipped with first control valve for inflation between air bag and air pump, first control valve has first working condition and second working condition, be equipped with A, B and C on first control valve, when first control valve is in first working condition, A and C are communicated between A and C, and A and B are cut off between A and B, when first control valve is in second working condition, A and B are communicated between A and B, and A and C are cut off between A and C,

[0007] Be equipped with second control valve for exhaust between air bag and air pump, second control valve has third working condition and fourth working condition, be equipped with D, E and F on second control valve, when second control valve is in third working condition, D and E are cut off between D and E, and D and F are communicated between D and F, when second control valve is in fourth working condition, D and E are communicated between D and E, B and D are connected to air bag respectively, air bag is connected to B of first control valve and D of second control valve, air pump is connected to A of first control valve and E of second control valve.

[0008] Preferably, the air inlet of the air pump is connected to the E port of the second control valve through the air pump suction pipe, and the air outlet of the air pump is connected to the A port of the first control valve through the air pump inflation pipe.

[0009] Preferably, the B port of the first control valve and the D port of the second control valve are communicated with the air bag through a three-way connecting pipe, the three-way connecting pipe has three connecting ports, and the three connecting ports are respectively connected to the air bag, the B port of the first control valve and the D port of the second control valve.

[0010] Preferably, the three-way connecting pipe is in the shape of "h" or "Y".

[0011] Preferably, a connecting plate is arranged between the first control valve and the second control valve, and the first control valve and the second control valve are installed on the connecting plate.

[0012] Preferably, the first control valve comprises a first fixing frame fixedly installed on the connecting plate, and the second control valve comprises a second fixing frame fixedly installed on the connecting plate.

[0013] Preferably, a plurality of connecting holes are arranged on the connecting plate.

[0014] Compared with the prior art, the utility model has the beneficial effects as follows:

[0015] The utility model provides a kind of solenoid valve device for air bag inflation and deflation control, by the cooperation of air pump, first control valve and second control valve, by the switching of first control valve in first working state and second working state, the switching of second control valve in third working state and fourth working state and the opening and closing transformation of air pump, by the switching of first control valve, second control valve and air pump in different state, it can realize the function of air bag inflation, pressure maintaining, slow exhaust, fast exhaust and air suction, and further realize the speed of air bag exhaust by the cooperation of first control valve, second control valve and air pump, so as to meet the exhaust speed required by air bag under different conditions, and function is more diverse. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is overall structure schematic diagram of the utility model;

[0017] Figure 2 It is air path principle diagram of the utility model;

[0018] Figure 3 It is part of the utility model three-dimensional structure schematic diagram;

[0019] Figure 4 It is the three-dimensional structure schematic diagram of air pump of the utility model.

[0020] BRIEF DESCRIPTION OF DRAWINGS:1, air bag;2, air pump;21, gas outlet;22, gas inlet;3, first control valve;31, first fixed frame;4, second control valve;41, second fixed frame;5, air pump inflation pipe;6, air pump air suction pipe;7, three-way connecting pipe;8, connecting plate. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0022] As Figures 1-4 Shown, a kind of solenoid valve device for air bag inflation and deflation control, including air bag 1 and air pump 2, first control valve 3 for inflation is equipped between air bag 1 and air pump 2, the first control valve 3 has first working state and second working state, the first control valve 3 is equipped with A mouth, B mouth and C mouth, when the first control valve 3 is in first working state, A mouth and C mouth are communicated, and A mouth and B mouth are cut off;When the first control valve 3 is in second working state, A mouth and B mouth are communicated, and A mouth and C mouth are cut off;

[0023] The second control valve 4 is provided between the air bag 1 and the air pump 2 for exhaust, the second control valve 4 has a third working state and a fourth working state, the second control valve 4 is provided with D port, E port and F port, when the second control valve 4 is in the third working state, D port and F port are communicated, and D port and E port are cut off; when the second control valve 4 is in the fourth working state, D port and E port are communicated.

[0024] The air bag 1 is connected to the B port of the first control valve 3 and the D port of the second control valve 4, and the air pump 2 is connected to the A port of the first control valve 3 and the E port of the second control valve 4.

[0025] The air inlet 22 of the air pump 2 is connected with the E port of the second control valve 4 through the air pump suction pipe 6, and the air outlet 21 of the air pump 2 is connected with the A port of the first control valve 3 through the air pump inflation pipe 5.

[0026] The B port of the first control valve 3 and the D port of the second control valve 4 are communicated with the air bag 1 through the three-way connecting pipe 7, the three-way connecting pipe 7 has three connecting ports, and the three connecting ports are respectively connected with the air bag 1, the B port of the first control valve 3 and the D port of the second control valve 4, the three-way connecting pipe 7 is in the shape of "h" or "Y".

[0027] The connecting plate 8 is provided between the first control valve 3 and the second control valve 4, the first control valve 3 and the second control valve 4 are installed on the connecting plate 8, and a plurality of connecting holes 80 are formed in the connecting plate 8.

[0028] The first control valve 3 comprises a first fixed frame 31 fixedly installed on the connecting plate 8, and the second control valve 4 comprises a second fixed frame 41 fixedly installed on the connecting plate 8.

[0029] It should be noted that the A port is the air inlet 22 of the first control valve 3, the B port is the working port of the first control valve 3, and the C port is the exhaust port of the first control valve 3;

[0030] The D port is the air inlet 22 of the second control valve 4, the E port is the working port of the second control valve 4, and the F port is the exhaust port of the second control valve 4.

[0031] And the air bag 1 realizes the functions of inflation, pressure maintaining, slow exhaust, fast exhaust and suction through the switching of the first control valve 3 between the first working state and the second working state and the switching of the second control valve 4 between the third working state and the fourth working state;

[0032] Inflation function: the first control valve 3 is in the second working state, the second control valve 4 is in the third working state, and the air pump 2 is in the starting state, the air pump 2 inflates the air bag 1 through the air pump inflation pipe 5, the first control valve 3 and the three-way connecting pipe 7;

[0033] Pressure maintaining function: after the air bag 1 is inflated, the first control valve 3 is in the first working state and the second control valve 4 is in the third working state, no matter the air pump 2 is in the starting state or the closed state, the air bag 1 is in the pressure maintaining state;

[0034] Slow exhaust function: the first control valve 3 is in the first working state and the air pump 2 is in the closed state, and the second control valve 4 is in the fourth working state, the gas in the air bag 1 enters the D port of the second control valve 4 through the three-way connecting pipe 7 and then is exhausted through the F port of the second control valve 4;

[0035] Fast exhaust function: the first control valve 3 is in the first working state, the second control valve 4 is in the fourth working state and the air pump 2 is in the starting state, at this time, the gas in the air bag 1 is sucked by the air pump 2, so that the sucked gas passes through the three-way connecting pipe 7, the D port and the E port of the second control valve 4, the air pump suction pipe 6, the air pump inflation pipe 5 and the air pump 2, and then is exhausted from the C port of the first control valve 3, and the starting state of the air pump 2 makes the exhaust speed of the air bag 1 faster;

[0036] Suction function: the first control valve 3 is in the first working state, the second control valve 4 is in the fourth working state and the air pump 2 is in the starting state, at this time, the gas in the air bag 1 is sucked by the air pump 2, so that the sucked gas passes through the three-way connecting pipe 7, the D port and the E port of the second control valve 4, the air pump suction pipe 6, the air pump inflation pipe 5 and the air pump 2, and then is exhausted from the C port of the first control valve 3, until the gas in the air bag 1 is exhausted and is in the deflated state.

[0037] Therefore, by connecting the first control valve 3 and the second control valve 4 between the air bag 1 and the air pump 2, the functions of inflating, pressure maintaining, slow exhaust, fast exhaust and suction of the air bag 1 can be realized, so that the speed of exhausting the air bag 1 is adjusted by the cooperation of the first control valve 3, the second control valve 4 and the air pump 2, so that the exhaust speed required by the air bag 1 in different situations can be adjusted, and the function is more diverse.

[0038] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0039] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A solenoid valve device for controlling the inflation and deflation of an airbag, characterized in that: The device includes an airbag (1) and an air pump (2). A first control valve (3) for inflation is provided between the airbag (1) and the air pump (2). The first control valve (3) has a first working state and a second working state. The first control valve (3) is provided with port A, port B and port C. When the first control valve (3) is in the first working state, port A and port C are connected and port A and port B are disconnected. When the first control valve (3) is in the second working state, port A and port B are connected and port A and port C are disconnected. A second control valve (4) for venting is provided between the airbag (1) and the air pump (2). The second control valve (4) has a third working state and a fourth working state. The second control valve (4) is provided with port D, port E and port F. When the second control valve (4) is in the third working state, port D and port E are cut off and port D and port F are connected. When the second control valve (4) is in the fourth working state, port D and port E are connected. Port B and port D are respectively connected to the airbag (1). The airbag (1) is connected to port B of the first control valve (3) and port D of the second control valve (4). The air pump (2) is connected to port A of the first control valve (3) and port E of the second control valve (4).

2. The solenoid valve device for controlling the inflation and deflation of an airbag according to claim 1, characterized in that: The air inlet (22) of the air pump (2) is connected to the E port of the second control valve (4) through the air pump suction pipe (6), and the air outlet (21) of the air pump (2) is connected to the A port of the first control valve (3) through the air pump charging pipe (5).

3. The solenoid valve device for controlling the inflation and deflation of an airbag according to claim 2, characterized in that: The B port of the first control valve (3) and the D port of the second control valve (4) are connected to the airbag (1) through a three-way connecting pipe (7). The three-way connecting pipe (7) has three connection ports, which are respectively connected to the airbag (1), the B port of the first control valve (3) and the D port of the second control valve (4).

4. A solenoid valve device for controlling the inflation and deflation of an airbag according to claim 3, characterized in that: The three-way connecting pipe (7) is in the shape of "h" or "Y".

5. A solenoid valve device for controlling the inflation and deflation of an airbag according to claim 1, characterized in that: A connecting plate (8) is provided between the first control valve (3) and the second control valve (4), and the first control valve (3) and the second control valve (4) are installed on the connecting plate (8).

6. A solenoid valve device for controlling the inflation and deflation of an airbag according to claim 5, characterized in that: The first control valve (3) includes a first fixing bracket (31) fixedly installed with the connecting plate (8), and the second control valve (4) includes a second fixing bracket (41) fixedly installed with the connecting plate (8).

7. A solenoid valve device for controlling the inflation and deflation of an airbag according to claim 5, characterized in that: The connecting plate (8) is provided with a plurality of connecting holes (80).

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