Solenoid valve, airbag device, and bedding

Abstract

The utility model belongs to the technical field of furniture products, and discloses an electromagnetic valve, an air bag device and bedding, the electromagnetic valve comprises a valve core assembly and a valve body, the valve core assembly comprises a valve core, a first one-way conductive piece, a second one-way conductive piece, a first power line and a second power line, a first coil is wound on the periphery of a first end, and a second coil is wound on the periphery of a second end; the near end of the first coil and the near end of the second coil are close to each other, and a first one-way conductive piece is connected between the two; the far end of the first coil and the far end of the second coil are far away from each other, a second one-way conductive part is connected between the first coil and the second coil, and the conduction direction of the first one-way conductive part is opposite to that of the second one-way conductive part; one of the first power line and the second power line is connected to the positive electrode of the power supply, and the other is connected to the negative electrode of the power supply. The first coil and the second coil are wound on the periphery of the valve element respectively, and the moving direction of the valve element is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture products, in particular to a solenoid valve, an airbag device and a bedding product. Background Art

[0002] Bedding products include mattresses, sofas, seats, etc. In order to meet the comfort requirements of users, airbags are usually arranged inside the products to provide flexible support for users. The inflation and deflation of the airbag are usually controlled by two solenoid valves. One solenoid valve is used to control inflation, and the other solenoid valve is used to control deflation. The solenoid valve mainly consists of an electromagnetic coil, a valve core and a valve body. When the electromagnetic coil is energized or de-energized, the operation of the valve core will cause the gas to pass through the valve body or be blocked by the valve body to achieve the purpose of inflation or deflation.

[0003] In the current solenoid valve, only a group of electromagnetic coils are wound around the periphery of the valve core. When the electromagnetic coil is energized, it can only drive the valve core to move in one direction. Therefore, one airbag needs to be matched with two solenoid valves. For example, when the airbag needs to be inflated, the electromagnetic coil of the solenoid valve connected to the air pump is energized, and the valve core moves away from the valve port of the valve body, thereby opening the valve port to achieve inflation. At the same time, the electromagnetic coil of the other solenoid valve connected to the exhaust system is de-energized, and the valve core moves close to the valve port of the valve body, thereby closing the valve port to prevent air leakage. When the airbag needs to be deflated, the electromagnetic coil of the solenoid valve connected to the air pump is de-energized, and the valve core moves close to the valve port of the valve body, thereby closing the valve port to stop inflation. At the same time, the electromagnetic coil of the other solenoid valve connected to the exhaust system is de-energized, and the valve core moves away from the valve port of the valve body, thereby opening the valve port to achieve deflation. Each airbag is matched with two solenoid valves, the number of solenoid valves increases, the cost increases, and it also occupies the layout space of other components. Especially for bedding products such as mattresses, sofas, and seats, the number of airbags is large, resulting in a sharp increase in the number of solenoid valves, high costs, and being not conducive to the popularization and use of products. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a solenoid valve, an airbag device and a bedding product, which respectively wind a first coil and a second coil around the periphery of the valve core to adjust the moving direction of the valve core.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] In the first aspect, the provided solenoid valve includes a valve core assembly and a valve body, and the valve core assembly includes:

[0007] The valve core is movably arranged in the working cavity of the valve body. The valve core includes a first end and a second end connected to each other. A first coil is wound around the circumference of the first end. The first end is connected with a first sealing component, and the first sealing component faces the first valve port of the valve body. A second coil is wound around the circumference of the second end. The second end is connected with a second sealing component, and the second sealing component faces the second valve port of the valve body;

[0008] A first one-way conductive component, the proximal ends of the first coil and the second coil are close to each other and the first one-way conductive component is connected between them;

[0009] A second one-way conductive component, the distal ends of the first coil and the second coil are far away from each other and the second one-way conductive component is connected between them. The conduction direction of the first one-way conductive component is opposite to the conduction direction of the second one-way conductive component;

[0010] A first power line and a second power line. The first power line is connected to the proximal end of the first coil, and the second power line is connected to the distal end of the second coil. One of the first power line and the second power line is connected to the positive pole of the power supply, and the other is connected to the negative pole of the power supply.

[0011] As an optional technical solution, the first sealing component includes a first elastic member and a first sealing member. The first elastic member is connected to the first end, and the first sealing member is connected to the first elastic member and faces the first valve port;

[0012] The second sealing component includes a second elastic member and a second sealing member. The second elastic member is connected to the second end, and the second sealing member is connected to the second elastic member and faces the second valve port.

[0013] As an optional technical solution, the first elastic member is a spring, and / or the second elastic member is a spring.

[0014] As an optional technical solution, the material of the first sealing member is an elastic material, and / or the material of the second sealing member is an elastic material.

[0015] As an optional technical solution, the first sealing member is a first soft rubber gasket, and / or the second sealing member is a second soft rubber gasket.

[0016] As an optional technical solution, the central axis of the first valve port, the central axis of the second valve port and the central axis of the working cavity are arranged to coincide.

[0017] As an alternative technical solution, the valve body further includes a third valve port for communicating with the airbag to input gas into the airbag or discharge the gas from the airbag.

[0018] As an alternative technical solution, the first unidirectional conductive component is a diode, and / or the second unidirectional conductive component is a diode.

[0019] In a second aspect, the provided airbag device includes an airbag and the electromagnetic valve as described above. The airbag is connected to the electromagnetic valve, and the electromagnetic valve is used to switch the gas flow direction.

[0020] In a third aspect, the provided bedding includes an air pump and the airbag device as described above. The air pump is connected to the electromagnetic valve of the airbag device.

[0021] Advantages of the present utility model:

[0022] The present utility model provides an electromagnetic valve, an airbag device and bedding. The electromagnetic valve includes a spool assembly and a valve body. The spool assembly includes a spool, a first unidirectional conductive component, a second unidirectional conductive component, a first power line and a second power line. The spool is movably disposed in the working chamber of the valve body. The spool includes a first end and a second end connected to each other. A first coil is wound around the circumference of the first end, and a first sealing component is connected to the first end. The first sealing component faces the first valve port of the valve body. A second coil is wound around the circumference of the second end, and a second sealing component is connected to the second end. The second sealing component faces the second valve port of the valve body. The proximal ends of the first coil and the second coil are close to each other and a first unidirectional conductive component is connected between them. The distal ends of the first coil and the second coil are away from each other and a second unidirectional conductive component is connected between them. The conduction directions of the first unidirectional conductive component and the second unidirectional conductive component are opposite. The first power line is connected to the proximal end of the first coil, and the second power line is connected to the distal end of the second coil. One of the first power line and the second power line is connected to the positive pole of the power supply, and the other is connected to the negative pole of the power supply.

[0023] When the first power cord is connected to the positive pole of the power supply and the second power cord is connected to the negative pole of the power supply, the first one-way conductive component and the first coil are both conducting, while the second one-way conductive component and the second coil are both non-conducting. Due to the action of electromagnetic force, the valve core moves in the direction from the first end to the second end. The second sealing component connected to the second end seals the second valve port of the valve body, and the first sealing component connected to the first end opens the first valve port of the valve body. When the first power cord is connected to the negative pole of the power supply and the second power cord is connected to the positive pole of the power supply, the first one-way conductive component and the first coil are both non-conducting, while the second one-way conductive component and the second coil are both conducting. The valve core moves in the direction from the second end to the first end. The first sealing component connected to the first end seals the first valve port of the valve body, and the second sealing component connected to the second end opens the second valve port of the valve body. With one electromagnetic valve of the present utility model, the airbag can achieve inflation adjustment and exhaust adjustment, with low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the electromagnetic valve of the present utility model.

[0025] In the figure:

[0026] 111. First end; 112. Second end; 12. First coil; 13. Second coil; 14. First one-way conductive component; 15. Second one-way conductive component; 16. First power cord; 17. Second power cord;

[0027] 2. Valve body; 21. First valve port; 22. Second valve port; 23. Third valve port;

[0028] 3. First sealing component; 31. First elastic component; 32. First sealing member;

[0029] 4. Second sealing component; 41. Second elastic component; 42. Second sealing member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The present utility model will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the sake of description, only parts related to the present utility model are shown in the drawings, rather than all structures.

[0031] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0033] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0034] Such as Figure 1As shown in the figure, this embodiment provides a solenoid valve, which includes a spool assembly and a valve body 2. The spool assembly includes a spool, a first unidirectional conductive member 14, a second unidirectional conductive member 15, a first power line 16 and a second power line 17. The spool is movably disposed in the working chamber of the valve body 2. The spool includes a first end 111 and a second end 112 connected to each other. A first coil 12 is wound around the circumference of the first end 111. The first end 111 is connected to a first plugging assembly 3. The first plugging assembly 3 faces the first valve port 21 of the valve body 2. A second coil 13 is wound around the circumference of the second end 112. The second end 112 is connected to a second plugging assembly 4. The second plugging assembly 4 faces the second valve port 22 of the valve body 2. The proximal ends of the first coil 12 and the second coil 13 are close to each other and a first unidirectional conductive member 14 is connected between them. The distal ends of the first coil 12 and the second coil 13 are far from each other and a second unidirectional conductive member 15 is connected between them. The conduction directions of the first unidirectional conductive member 14 and the second unidirectional conductive member 15 are opposite. The first power line 16 is connected to the proximal end of the first coil 12. The second power line 17 is connected to the distal end of the second coil 13. One of the first power line 16 and the second power line 17 is connected to the positive pole of the power supply, and the other is connected to the negative pole of the power supply.

[0035] Specifically, as a working mode, when the first power line 16 is connected to the positive pole of the power supply and the second power line 17 is connected to the negative pole of the power supply, both the first unidirectional conductive member 14 and the second coil 13 are conductive, and both the second unidirectional conductive member 15 and the first coil 12 are non-conductive. Due to the action of electromagnetic force, the spool moves in the direction from the first end 111 to the second end 112. The second plugging assembly 4 connected to the second end 112 plugs the second valve port 22 of the valve body 2, and the first plugging assembly 3 connected to the first end 111 opens the first valve port 21 of the valve body 2. When the first power line 16 is connected to the negative pole of the power supply and the second power line 17 is connected to the positive pole of the power supply, both the first unidirectional conductive member 14 and the second coil 13 are non-conductive, and both the second unidirectional conductive member 15 and the first coil 12 are conductive. The spool moves in the direction from the second end 112 to the first end 111. The first plugging assembly 3 connected to the first end 111 plugs the first valve port 21 of the valve body 2, and the second plugging assembly 4 connected to the second end 112 opens the second valve port 22 of the valve body 2. By using one solenoid valve of the present invention, the airbag can be inflated and deflated, and the cost is low.

[0036] The way of switching the connection of the positive and negative poles of the power supply to the first power line 16 and the second power line 17 can refer to the prior art, for example, using a triode to build an H bridge or a DC brush drive core.

[0037] Optionally, the first plugging assembly 3 includes a first elastic member 31 and a first plugging member 32. The first elastic member 31 is connected to the first end 111, and the first plugging member 32 is connected to the first elastic member 31 and faces the first valve port 21.

[0038] Optionally, the second plugging assembly 4 includes a second elastic member 41 and a second plugging member 42. The second elastic member 41 is connected to the second end 112, and the second plugging member 42 is connected to the second elastic member 41 and faces the second valve port 22.

[0039] Both the first elastic member 31 and the second elastic member 41 have the ability of elastic deformation. The contact between the first plugging member 32 and the first valve port 21 and the contact between the second plugging member 42 and the second valve port 22 are both flexible, which can reduce the impact noise. When the solenoid valve is not powered on, the first elastic member 31 pushes the first plugging member 32 to the first valve port 21 to block the first valve port 21, and the second elastic member 41 pushes the second plugging member 42 to the second valve port 22 to block the second valve port 22.

[0040] Optionally, the first elastic member 31 is a spring, and / or the second elastic member 41 is a spring.

[0041] Optionally, the material of the first plugging member 32 is an elastic material, and / or the material of the second plugging member 42 is an elastic material.

[0042] Both the first plugging member 32 and the second plugging member 42 have the ability of elastic deformation. The contact between the first plugging member 32 and the first valve port 21 and the contact between the second plugging member 42 and the second valve port 22 are both flexible, which can reduce the impact noise and prevent the first valve port 21 and the second valve port 22 from being damaged by rigid impact.

[0043] In this embodiment, the first plugging member 32 is a first soft rubber gasket, and / or the second plugging member 42 is a second soft rubber gasket.

[0044] Optionally, the central axes of the first valve port 21, the second valve port 22, and the working chamber coincide, which optimizes the structure of the valve body 2 and is beneficial to the miniaturization of the valve body 2.

[0045] Optionally, the valve body 2 further includes a third valve port 23 for communicating with the airbag to input gas into the airbag or discharge the gas in the airbag. The distance from the first valve port 21 to the third valve port 23 is equal to the distance from the second valve port 22 to the third valve port 23.

[0046] Specifically, the first valve port 21 is connected to the external exhaust system, the second valve port 22 is connected to the output end of the air pump, and the third valve port 23 is connected to the inside of the airbag. When the first valve port 21 is opened and the second valve port 22 is blocked, the gas provided by the air pump passes through the first valve port 21 and the third valve port 23 and finally enters the inside of the airbag. When both the first valve port 21 and the second valve port 22 are blocked, the air pump stops inputting gas and the airbag stops inflating. When the first valve port 21 is blocked and the second valve port 22 is opened, the gas inside the airbag passes through the third valve port 23 and the second valve port 22 and is discharged to the external exhaust system.

[0047] In this embodiment, the first valve port 21, the second valve port 22, and the third valve port 23 are respectively connected to the working chamber.

[0048] Optionally, the first one-way conductive member 14 is a diode, and / or the second one-way conductive member 15 is a diode.

[0049] This embodiment also provides an airbag device, which includes an airbag and the solenoid valve as above. The airbag is connected to the solenoid valve, and the solenoid valve is used to switch the gas flow direction.

[0050] The airbag in this embodiment only needs to be matched with one solenoid valve to achieve inflation adjustment and exhaust adjustment. The number of solenoid valves required is minimized, which can reduce costs.

[0051] This embodiment also provides a bedding, which includes an air pump and the airbag device as above. The air pump is connected to the solenoid valve of the airbag device.

[0052] The bedding shown in this embodiment is not limited to products such as mattresses, sofas, and seats. By controlling the solenoid valve, the air pump can inflate the airbag or the airbag can exhaust to the external exhaust system. The number of solenoid valves is small, which can reduce costs and facilitate popularization and use.

[0053] Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments, and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A solenoid valve, comprising a valve core assembly and a valve body (2), characterized in that: The valve core assembly comprises: A valve core, movably arranged in the working chamber of the valve body (2), the valve core comprising a first end (111) and a second end (112) connected to each other, a first coil (12) being wound around the periphery of the first end (111), the first end (111) being connected to a first blocking component (3), the first blocking component (3) facing a first valve port (21) of the valve body (2), a second coil (13) being wound around the periphery of the second end (112), the second end (112) being connected to a second blocking component (4), the second blocking component (4) facing a second valve port (22) of the valve body (2); A first unidirectional conductive member (14), wherein the proximal end of the first coil (12) and the proximal end of the second coil (13) are close to each other and the first unidirectional conductive member (14) is connected between the two; a second unidirectional conductive member (15), wherein the distal end of the first coil (12) and the distal end of the second coil (13) are far away from each other and the second unidirectional conductive member (15) is connected between the two, and the conducting direction of the first unidirectional conductive member (14) is opposite to the conducting direction of the second unidirectional conductive member (15); A first power line (16) and a second power line (17), wherein the first power line (16) is connected to the proximal end of the first coil (12), and the second power line (17) is connected to the distal end of the second coil (13), and one of the first power line (16) and the second power line (17) is connected to the positive pole of a power source, and the other of the first power line (16) and the second power line (17) is connected to the negative pole of the power source.

2. The solenoid valve according to claim 1, characterized in that: The first blocking component (3) comprises a first elastic member (31) and a first blocking member (32), the first elastic member (31) being connected to the first end (111), and the first blocking member (32) being connected to the first elastic member (31) and facing the first valve port (21); The second blocking component (4) comprises a second elastic member (41) and a second blocking member (42), wherein the second elastic member (41) is connected to the second end (112), and the second blocking member (42) is connected to the second elastic member (41) and faces the second valve port (22).

3. The solenoid valve according to claim 2, characterized in that: The first elastic member (31) is a spring, and / or the second elastic member (41) is a spring.

4. The solenoid valve according to claim 2, characterized in that: The material of the first blocking member (32) is an elastic material, and / or the material of the second blocking member (42) is an elastic material.

5. The solenoid valve according to claim 2, characterized in that: The first sealing member (32) is a first soft rubber sealing pad, and / or the second sealing member (42) is a second soft rubber sealing pad.

6. The solenoid valve according to claim 1, characterized in that: The central axis of the first valve port (21), the central axis of the second valve port (22) and the central axis of the working chamber are arranged to coincide with each other.

7. The solenoid valve according to claim 1, characterized in that: The valve body (2) further comprises a third valve port (23), wherein the third valve port (23) is used to communicate with the airbag so as to input gas into the airbag or discharge gas from the airbag.

8. The solenoid valve according to claim 1, characterized in that: The first unidirectional conductive element (14) is a diode, and / or the second unidirectional conductive element (15) is a diode.

9. An airbag device, characterized in that: It comprises an airbag and a solenoid valve as described in any one of claims 1 to 8, wherein the airbag is connected to the solenoid valve, and the solenoid valve is used to switch the gas flow direction.

10. Bedding, characterized in that The invention comprises an air pump and the airbag device as claimed in claim 9, wherein the air pump is connected to the solenoid valve of the airbag device.

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