TWM596299U - Valve body, electromagnet switch valve and bed structure - Google Patents

Abstract

A valve body including an outer wall, an inner wall and a connecting wall is provided. The outer wall has a first upper surface, a first side surface and a second side surface. At least one of the first side surface and the second side surface has a fluid hole. The inner wall is disposed inside the outer wall. The inner wall shields the at least one fluid hole. The third surface has an inner opening. The connecting wall is disposed inside the outer wall. The connecting wall connects the inner opening of the inner wall and the fluid hole of the outer wall. Furthermore, an electromagnet switch valve and a bed structure are also provided.

Description

Valve body, electromagnetic switch valve and bed structure

This new creation is about a valve body, electromagnetic switch valve and bed structure.

The electromagnetic switch valve is used to control the size, direction or flow of fluid flow. The electromagnetic switch valve in the prior art usually includes a fluid drive device and a corresponding valve body. The electromagnetic switch valve uses its internal control lever to open or close the internal flow path, so that the fluid drive device drives the fluid to be transported to the outside. A fluid-filled object (such as an uninflated balloon). However, due to the design relationship, the existing valve body cannot meet the requirement of providing a large flow rate in a state of low flow pressure. Therefore, the above problem is a direction that those skilled in the art are eager to improve.

The novel creation provides a valve body which can reduce the flow pressure flowing through the valve body and has good reliability.

The novel creation provides an electromagnetic switch valve, which can quickly deflate the objects to be deflated, and can save electricity and avoid the risk of fire.

The novel creation provides a bed structure whose inflatable bladder or base can be quickly inflated.

The novel creation provides a valve body including an outer wall, an inner wall and a connecting wall. The outer wall has a first upper surface, a first side surface, and a second side surface. The first upper surface is connected to the first side surface and the second side surface. The first upper surface has a first opening, and at least one of the first side surface and the second side surface has a fluid hole. The inner wall is arranged inside the outer wall. The inner wall shields at least one fluid hole. The inner wall has a second upper surface and a third side surface connected to the second upper surface. The second upper surface has a second opening. The opening directions of the first opening and the second opening are the same, and the third side surface has an inner opening. The connecting wall is arranged in the outer wall. The connecting wall connects the inner opening of the inner wall and the fluid hole of the outer wall.

The novel creation provides an electromagnetic on-off valve, which includes an electromagnetic driving part, a control rod and at least one of the above-mentioned valve bodies. The control lever includes a first lever body and a switch member connected to each other. The control rod is mechanically coupled with the electromagnetic driving member through the first rod body. The size of the switch piece is larger than the size of the second opening. In the first state, the electromagnetic driving member drives the first lever body to drive the switching member to a first position. In the second state, the electromagnetic driving member is powered off to maintain the position of the switching member. In the third state, the electromagnetic driving member drives the first lever body to drive the switching member to the second position, wherein the first position is different from the second position.

The novel creation provides a bed structure including the above-mentioned electromagnetic switch valve and at least one inflatable bladder. At least one inflatable bladder is connected to at least one fluid hole of the at least one valve body, and the fluid driving device drives fluid to inflate at least one inflatable bladder after the fluid passes through the at least one valve body.

Based on the above, in the structure of the valve body, the electromagnetic switch valve and the bed body of the embodiment of the present invention, the design of the inner wall to cover the fluid hole is used to effectively reduce the flow pressure of the fluid in the valve body. The relationship between pressure and reliability is also good, and it can also realize the delivery of large flow fluid to quickly inflate the inflatable bladder.

Please refer to FIGS. 1, 2A to 2C, 3A to 3C, and 4. In this embodiment, the bed structure 300 includes a base 310, at least one inflatable bladder 320, and an electromagnetic switching valve 200. The electromagnetic switch valve 200 includes an electromagnetic driving member 210, a control rod 220, at least one valve body 100, and a fluid driving device 230. The number of the valve body 100 is, for example, only one, but not limited thereto. In other embodiments, the electromagnetic switch valve 200 is not limited to inflating only the bed structure 300, and can also inflate objects that need to be inflated, such as sofas or tents. The creation of the new model is not limited to this. The above-mentioned elements will be explained in detail in the following paragraphs.

The base 310 is an element that is elastic (or deformable) and can be injected with a fluid to expand therein or it can be contracted by drawing a fluid inside.

At least one inflatable bladder 320 is disposed on the base 310, and it is also made of an elastic (or deformable) material. In this embodiment, the number of the inflatable bladder 320 is, for example, one, but not limited to this.

In addition, the base 310 and the inflation bladder 320 respectively include control valves A1 and A2, and the control valves A1 and A2 can be inflated by connecting the transfer lines C1 and C2 to the electromagnetic switching valve 200, respectively. In this embodiment, for example, the inflation bladder 320 is inflated as an example for description. In other embodiments, the base 310 may also be inflated. The present invention is not limited to this.

Next, the components inside the electromagnetic switch valve 200 will be described.

3A to 3C, the electromagnetic driving member 210 includes a housing 212, a rod body 214 (also known as a second rod body), at least one induction coil 216, a voltage supply 218, and a magnetic member 219, of which at least one induction coil 216 The number is for example multiple, but not limited to this. The rod body 214, at least one induction coil 216, voltage supply 218, and magnetic member 219 are all disposed in the housing 212, and the housing 212 provides protection. The casing 212 has two opposite embedding holes H1 and H2. The rod body 214 passes through at least one of the two embedding holes H1 and H2. The magnetic member 219 is, for example, a permanent magnet, but not limited thereto, and the number thereof is, for example, two, but not limited thereto. The two magnetic members 219 are respectively disposed in the fitting holes H1 and H2. In other embodiments, the number of the magnetic member 219 is, for example, only one, and is disposed in one of the two embedding holes H1, H2. At least one induction coil 216 surrounds the rod body 214. The voltage supply 218 is coupled to at least one induction coil 216 and is used to provide a voltage to the induction coil 216 to generate an induced magnetic field.

The control rod 220 includes a rod body 222 (also called a first rod body) and a switch member 224 connected to each other, wherein the switch member 224 is disposed at one end of the rod body 222, and the switch member 224 has an embedded hole H3 for the electromagnetic drive member The rod body 214 of 210 is embedded to mechanically couple the control rod 220 with the electromagnetic driving member 210.

Please refer to FIGS. 3A to 3C and FIG. 4, the valve body 100 includes an outer wall 110, an inner wall 120 and a connecting wall 130. The outer wall 110 has a first upper surface US1, a first side surface SS1, and a second side surface SS2. The first upper surface US1 is connected to the first side surface SS1 and the second side surface SS2. The first upper surface US1 has a first opening O1. In the embodiment of the present invention, at least one of the first side surface SS1 and the second side surface SS2 has a fluid hole FO. In this embodiment, both the first side surface SS1 and the second side surface SS2 respectively have a fluid hole FO, and are referred to as a first fluid hole FO1 and a second fluid hole FO2, respectively. The inner wall 120 is disposed in the outer wall 110 and shields the first and second fluid holes FO1 and FO2. In other words, the projections of the first and second fluid holes FO1 and FO2 in the horizontal direction HD overlap the inner wall 120. The inner wall 120 has a second upper surface US2 and a third side surface SS3 connected to each other. The second upper surface US2 has a second opening 02, and the third side surface SS3 has an inner opening IO. The size of the switching element 224 is larger than the size of the second opening O2. The connecting wall 130 is disposed in the outer wall 110. The connecting wall 130 connects the inner opening 10 of the inner wall 120 and the second fluid hole FO2 of the outer wall 110. In addition, the valve body 100 has a more limited position FP. The limiting portion FP is disposed in the inner wall 120 and includes a limiting hole SH. The diameter of the first opening O1 is larger than the diameter of the second opening O2, and the second opening O2 is larger than the diameter of the limiting hole SH. The opening directions of the first and second openings O1, O2 and the limiting hole SH are the vertical direction VD, and the opening directions of the first and second fluid holes FO1, FO2 are the horizontal direction HD.

Referring to FIG. 1, the fluid driving device 230 is a device for moving the fluid G, that is, a mechanical device that generally performs work on the fluid G, for example, a fluid pump. The fluid driving device 230 may be connected to the first fluid hole FO1 or the second fluid hole FO2 of the valve body 100 through the delivery line C3. In this embodiment, the fluid driving device 230 is, for example, connected to the first fluid hole FO1, but it is not limited thereto. The fluid driving device 230 is adapted to drive the fluid G to the flow path in the valve body 100 through the fluid hole FO, for example, to inflate the inflatable bladder 320. In this embodiment, the fluid G is, for example, air, but not limited to this.

In the following paragraphs, the technical effects of the electromagnetic switch valve 200 in the bed structure 300 will be described in detail with reference to FIGS. 3A to 3C.

Please refer to FIG. 3A. FIG. 3A represents the first state of the electromagnetic driving member 200. In the first state, the voltage supply 218 in the electromagnetic driving element 200 provides a first voltage V to the induction coil 216. At this time, the induction coil 216 generates an induced magnetic field, so that the rod body 214 generates a repulsive force relative to the magnetic element 219 The driving rod body 214 moves in the direction D1 away from the valve body 100 to drive the switch member 224 to the first position, wherein the second opening O2 can be opened when the switch member 224 is in the first position. At this time, the fluid driving device 230 drives the fluid G (the flow direction is marked by a thick black line) to pour the fluid G into the valve body 100 through the first fluid hole FO1, and because the inner wall 120 shields the fluid hole FO, the fluid G starts It will be blocked by the inner wall 120 and move upwards, and then enter the inner wall 120 through the second opening O2. Next, the fluid G enters the connecting wall 130 through the inner opening IO, and then flows out of the valve body 100 through the connecting wall 130 and the second fluid hole FO2, and inflates the inflatable bladder 320 through the delivery line C1 in FIG. 1 to achieve The function of conveying fluid G.

In the process of the above-mentioned fluid G entering the valve body 100, since the fluid G is initially blocked by the inner wall 120 and flows upward through the second opening O2, the inner opening IO, and then flows to the second fluid hole FO2, instead of Directly flowing to the second fluid hole FO2, this design can effectively reduce the flow pressure of the fluid G, and can realize the delivery of the large-flow fluid G. Therefore, the electromagnetic switching valve 200 of this embodiment can quickly inflate the inflatable bladder 320 of the bed structure 300, and the valve body 100 of the electromagnetic switching valve 200 is also reliable due to the relationship of low flow pressure.

Please refer to FIG. 3B, which represents the second state of the electromagnetic driving member 200. In the second state, the voltage supply 218 in the electromagnetic driving member 200 is de-energized (or stops supplying voltage to the induction coil 216), so that the rod body 214 is attracted by the magnetic member 219 to maintain the position of the switching member 224. At this time, the position where the switch member 224 is located is, for example, the first position. Based on the actuation method described above, the electromagnetic switching valve 200 can maintain the position of the switching member 224 in the previous state by the magnetic force of the magnetic member 219 when the power is off, and the electromagnetic switching valve 200 can also be called a maintenance type solenoid valve Therefore, the electromagnetic on-off valve 200 of this embodiment can save electricity and avoid the risk of fire caused by high heat generated during long-term operation.

Please refer to FIG. 3C, which represents the third state of the electromagnetic driving member 200. If the inflatable bladder 320 is already filled with the fluid G, there is no need to inflate the inflatable bladder 320 again. Therefore, in the third state, the voltage supply 218 in the electromagnetic driving element 200 provides a second voltage -V electrically opposite to the first voltage V to the induction coil 216, and the induction coil 216 generates a reverse induced magnetic field , So that the rod body 214 generates a repulsive force relative to the magnetic member 219 to drive the rod body 214 to move in the direction D2 of the valve body 100 to drive the switch member 224 to the second position, wherein when the switch member 224 is in this second position Close the second opening O2. At this time, the fluid G can no longer flow out of the valve body 100 through the second fluid hole FO2, and the function of stopping the delivery of the fluid G to the inflatable bladder 320 is achieved.

In other words, in the above-mentioned FIGS. 3A and 3C, the electromagnetic switch valve 200 can switch the position (first and second positions) of the switch member 224 by the electromagnetic driving member 210 to selectively inflate the inflation bladder 320 or not.

Based on the above, in the bed structure 300, the electromagnetic switch valve 200 and the valve body 100 of this embodiment, the design of the inner wall 130 to shield the fluid hole FO can effectively reduce the flow pressure of the fluid G in the valve body 100. The valve body 100 is also highly reliable due to the low flow pressure, and can also deliver a large flow of fluid G to quickly inflate the inflatable bladder 320.

In addition, please refer to FIGS. 3A to 3C. In this embodiment, since the inner wall 120 is further provided with a limit portion FP, when the switching member 224 is switched between the positions shown in FIGS. 3A to 3C, the electromagnetic driving member 210 The rod body 214 can be limited by the limiting portion FP without being easily shifted to other places.

It must be noted here that the following embodiments follow part of the content of the foregoing embodiments, omitting the description of the same technical content. For the same element names, reference may be made to part of the content of the foregoing embodiments, and the following embodiments will not be repeated.

FIG. 5 is a schematic diagram of a bed structure according to another embodiment of the novel creation. 6A to 6C are schematic views of the electromagnetic switching valve in FIG. 5 under different viewing angles. 7A is a schematic cross-sectional view of the electromagnetic switching valve in FIG. 5 in a first state. 7B is a schematic cross-sectional view of the electromagnetic switching valve in FIG. 5 in a second state. 7C is a schematic cross-sectional view of the electromagnetic switching valve in FIG. 5 in a third state. 8 is a top view of the second valve body in FIG. 5.

Please refer to FIG. 5. The bed structure 300 a of FIG. 5 is substantially similar to the bed structure 300 of FIG. 1. The main difference is that the structure and the number of the valve body 100 a are different from the bed structure 300 of FIG. 1. In the bed structure 300a, the number of the valve bodies 100 of the electromagnetic switching valve 200a is, for example, multiple, and taking two as an example, for example, it is referred to as a first valve body 100 and a second valve body 100a. The structure and function of the first valve body 100 are the same as those described in FIGS. 3A to 3C and FIG. 4 and will not be repeated here. In the following paragraphs, the structures of the second valve body 100a and the first valve body 100 are mainly described. the difference.

5, 6A to 6C, 7A to 7C and 8, the main difference between the first valve body 100a and the second valve body 100a is: the first side surface of the second valve body 100a One of SS1 and the second side surface SS2 has a fluid hole FO, and the other does not. In this embodiment, the second side surface SS2 of the second valve body 100a has the fluid hole FO, while the first side surface SS1a is not, but the creation of the new type is not limited to this. As shown in FIG. 5, the first fluid hole FO1 of the first valve body 100 is connected to the fluid driving device 230 through the delivery line C3, and the second fluid hole FO2 of the first valve body 100 is connected to the inflation bag 320 through the delivery line C1 Control valve A2 is connected. The fluid hole FO of the second valve body 100a is connected to the control valve A1 of the base 310 through the delivery line C2. Referring to FIGS. 7A to 7C, the first opening O1 of the first valve body 100 is butted to the first opening O1 of the second valve body 100a, and the control rod 220 is disposed in the outer wall 110 of the first valve body 100 and the second Inside the outer wall 110 of the valve body 100a. The rod body 222 of the control rod 220 is embedded in the two limiting portions FP of the first and second valve bodies 100 and 100a. In addition, the lower surface DS of the second valve body 100a has an opening O, and the position of the opening O corresponds to the position of the limiting portion FP. The rod body 214a has a fitting hole H4. The rod body 214 of the electromagnetic driving member 210 is mechanically coupled to the rod body 222 located in the first and second valve bodies 100 and 100a through the opening O.

In the following paragraphs, the technical effects of the electromagnetic switch valve 200a in the bed structure 300a will be described in detail with reference to FIGS. 7A to 7C.

Please refer to FIG. 7A, which represents the first state of the electromagnetic driving member 200a. In the first state, the voltage supply 218 in the electromagnetic driving element 200 provides a first voltage V to the induction coil 216. At this time, the induction coil 216 generates an induced magnetic field, so that the rod body 214 generates a repulsive force relative to the magnetic element 219 The driving rod body 214 is moved in a direction D1 away from the first valve body 100 (or a direction close to the second valve body 100a) to drive the switch member 224 to the first position, wherein when the switch member 224 is in the first position, the switch member 224 may open the second opening O2 of the first valve body 100 and close the second opening O2 of the second valve body 100a. At this time, the fluid driving device 230 drives the fluid G (the flow direction is marked by a thick black line) to pour the fluid G into the first valve body 100 through the first fluid hole FO1, and the fluid G will first be blocked by the inner wall 120 and upward It moves and enters the inner wall 120 via the second opening 02. Next, the fluid G enters the connecting wall 130 through the inner opening IO, and then flows out of the first valve body 100 through the connecting wall 130 and the second fluid hole FO2, and inflates the inflatable bladder 320 through the delivery line C1 in FIG. 5, In order to achieve the function of conveying fluid G.

Please refer to FIG. 7B, which represents the second state of the electromagnetic driving member 200a. In the second state, the voltage supply 218 in the electromagnetic driving member 200 is de-energized (or stops supplying voltage to the induction coil 216), so that the rod body 214 is attracted by the magnetic member 219 to maintain the position of the switching member 224. At this time, the position where the switch member 224 is located is, for example, the first position.

Please refer to FIG. 7C, which represents the third state of the electromagnetic driving member 200a. If the inflatable bladder 320 is already filled with the fluid G, there is no need to inflate the inflatable bladder 320 again. Therefore, in the third state, the voltage supply 218 in the electromagnetic driving element 200a provides a second voltage -V electrically opposite to the first voltage V to the induction coil 216, and the induction coil 216 generates a reverse induced magnetic field , So that the rod body 214 generates a repulsive force relative to the magnetic member 219 to drive the rod body 214 to move in the direction D2 of the valve body 100 to drive the switch member 224 to the second position, wherein when the switch member 224 is in this second position, The switching element 224 can close the second opening O2 of the first valve body 100 and open the second opening O2 of the second valve body 100a. At this time, the fluid driving device 230 drives the fluid G (the flow direction is marked by a thick black line) to fill the fluid G into the first valve body 100 through the first fluid hole FO1, and because the inner wall 120 shields the fluid hole FO, the fluid G At first, it will be blocked by the inner wall 120 and move upwards, and then sequentially pass through the first opening O1 of the first valve body 100 and the first opening O1 of the second valve body 100a. Next, the fluid G enters the connecting wall 130 through the inner opening 10 of the second valve body 100a, and then flows out of the second valve body 100a through the connecting wall 130 and the fluid hole FO, and passes through the transfer line C2 in FIG. 5 to the substrate. 310 is inflated to achieve the function of delivering fluid G.

According to the above, in the electromagnetic on-off valve 200a of this embodiment, the arrangement relationship between the first and second valve bodies 100, 100a and the position of the switching element 224 can be selectively targeted to the base 310 Or the inflatable bladder 320 is inflated.

In summary, in the structure of the valve body, the electromagnetic switch valve and the bed body of the embodiment of the present invention, it can have one or more of the following advantages:

1. The valve body is designed to effectively reduce the flow pressure of the fluid in the valve body by the design of the inner wall shielding the fluid hole. The valve body is also reliable due to the relationship of low flow pressure, and it can also realize the delivery of large flow fluid.

2. The voltage supply in the solenoid switch valve inputs the induction voltage of different phases to the induction coil to switch the position of the control lever to different first and second positions. Moreover, the voltage supplier may not supply power to the induction coil, and in the state of power off, the magnetic member may attract the rod body and maintain the position of the switching member. Therefore, the electromagnetic switch valve can save electricity and avoid the risk of fire.

3. Because the bed structure adopts the design of the above-mentioned valve body and electromagnetic switch valve, it can quickly inflate its inflatable bladder or base.

300, 300a: bed structure 310: base 320: inflatable bladder 200, 200a: solenoid switch valve 210: Electromagnetic drive 212: Shell 214, 214a, 222: rod body 216: Induction coil 218: voltage supply 219: Magnetic parts 220: joystick 224: Switch piece 230: fluid drive 100: valve body (or first valve body) 100a: second valve body 110: outer wall 120: inner wall 130: connecting wall A1, A2: control valve C1~C3: Conveying pipeline D1, D2: direction DS: lower surface FO: fluid hole FO1: First fluid hole FO2: Second fluid hole FP: Limit part G: fluid H1~H4: Embedded hole HD: horizontal IO: inner opening O: opening O1: first opening O2: second opening SH: Limit hole SS1, SS1a: first side surface SS2: Second side surface SS3: third side surface US1: first upper surface US2: second upper surface V: first voltage -V: second voltage VD: vertical direction

FIG. 1 is a schematic diagram of a bed structure according to an embodiment of the novel creation. 2A to 2C are schematic views of the electromagnetic switching valve in FIG. 1 under different viewing angles. 3A is a schematic cross-sectional view of the electromagnetic switching valve in FIG. 1 in a first state. 3B is a schematic cross-sectional view of the electromagnetic switching valve in FIG. 1 in a second state. 3C is a schematic cross-sectional view of the electromagnetic switching valve in FIG. 1 in a third state. 4 is a top view of the valve body in FIG. 1. FIG. 5 is a schematic diagram of a bed structure according to another embodiment of the novel creation. 6A to 6C are schematic views of the electromagnetic switching valve in FIG. 5 under different viewing angles. 7A is a schematic cross-sectional view of the electromagnetic switching valve in FIG. 5 in a first state. 7B is a schematic cross-sectional view of the electromagnetic switching valve in FIG. 5 in a second state. 7C is a schematic cross-sectional view of the electromagnetic switching valve in FIG. 5 in a third state. 8 is a top view of the second valve body in FIG. 5.

200: solenoid switch valve

210: Electromagnetic drive

212: Shell

214: Rod body

216: Induction coil

218: voltage supply

219: Magnetic parts

220: joystick

222: Rod body

224: Switch piece

100: valve body

110: outer wall

120: inner wall

130: connecting wall

D1: direction

FO: fluid hole

FO1: First fluid hole

FO2: Second fluid hole

FP: Limit part

G: fluid

H1~H3: Embedded holes

HD: horizontal

IO: inner opening

O1: first opening

O2: second opening

SH: Limit hole

SS1: first side surface

SS2: Second side surface

SS3: third side surface

US1: first upper surface

US2: second upper surface

V: first voltage

VD: vertical direction

Claims (20)

A valve body including: An outer wall has a first upper surface, a first side surface and a second side surface, the first upper surface is connected to the first side surface and the second side surface, wherein the first upper surface has a first An opening, at least one of the first side surface and the second side surface has a fluid hole; An inner wall is disposed in the outer wall, the inner wall shields the at least one fluid hole, the inner wall has a second upper surface and a third side surface connected to the second upper surface, the second upper surface has a Second opening, Wherein the opening direction of the first opening and the second opening are the same, and the third side surface has an inner opening; and A connecting wall is disposed in the outer wall, wherein the connecting wall connects the inner opening of the inner wall and the fluid hole of the outer wall. The valve body according to claim 1, wherein both the first side surface and the second side surface have a fluid hole. The valve body according to claim 2, wherein the fluid hole on the first side surface is a first fluid hole, and the fluid hole on the second side surface is a second fluid hole, wherein the inner wall shields the first A fluid hole and the second fluid hole are located between the first fluid hole and the second fluid hole, and the connecting wall connects the first fluid hole of the outer wall. The valve body according to claim 1, wherein one of the first side surface and the second side surface has a fluid hole, and the other does not. The valve body according to claim 1, wherein the diameter of the first opening is larger than the diameter of the second opening. The valve body according to claim 1, wherein the valve body further includes a limiting portion disposed in the inner wall, and the limiting portion includes a limiting hole. The valve body according to claim 5, wherein the diameter of the second opening is larger than the diameter of the limiting hole. The valve body according to claim 5, wherein the first opening, the second opening, and the positioning hole have the same opening direction. The valve body according to claim 1, wherein the opening directions of the first opening and the second opening are a first opening direction, and the opening directions of the first and second fluid holes are A second opening direction, wherein the first opening direction is different from the second opening direction. An electromagnetic switch valve, including: An electromagnetic drive part; A control lever, including a first lever body and a switching element connected to each other, the control lever is mechanically coupled to the electromagnetic driving member through the first lever body; At least one valve body, including: An outer wall has a first upper surface, a first side surface and a second side surface, the first upper surface is connected to the first side surface and the second side surface, wherein the first upper surface has a first An opening, at least one of the first side surface and the second side surface has a fluid hole; An inner wall is disposed in the outer wall, the inner wall shields the at least one fluid hole, the inner wall has a second upper surface and a third side surface connected to the second upper surface, the second upper surface has a A second opening, the size of the switch is larger than the size of the second opening; Wherein the opening direction of the first opening and the second opening are the same, and the third side surface has an inner opening; and A connecting wall disposed in the outer wall, wherein the connecting wall connects the inner opening of the inner wall and the fluid hole of the outer wall; and A fluid driving device connected to the fluid hole of the outer wall and adapted to drive fluid to the flow channel of the valve body through the fluid hole, wherein, In a first state, the electromagnetic driving member drives the first lever body to drive the switching member to a first position; In a second state, the electromagnetic driving element is powered off to maintain the position of the switching element; In a third state, the electromagnetic driving member drives the first lever body to drive the switching member to a second position, wherein the first position is different from the second position. The electromagnetic switching valve according to claim 10, wherein both the first side surface and the second side surface have a fluid hole. The electromagnetic switch valve according to claim 10, wherein the fluid hole on the first side surface is a first fluid hole, and the fluid hole on the second side surface is a second fluid hole, wherein the inner wall shields the The first fluid hole and the second fluid hole are located between the first fluid hole and the second fluid hole, and the connecting wall connects the second fluid hole of the outer wall. The electromagnetic switching valve according to claim 10, wherein the electromagnetic driving member further comprises: One shell with two opposite embedded holes; A second rod body, penetrating at least one of the two embedding holes, wherein the second rod body is connected to the first rod body of the control rod; At least one induction coil is disposed in the housing, and the at least one induction coil surrounds the rod body; A voltage supply, coupled to the at least one induction coil; and A magnetic member is disposed in at least one of the two embedding holes. The electromagnetic switching valve according to claim 13, wherein, In the first state, the voltage supply provides a first voltage to the induction coil, so that the second rod body generates a repulsive force against the magnetic member to drive the first rod body to the first position; In the second state, the voltage supplier stops supplying voltage to the induction coil, so that the rod body is attracted by the magnetic member to maintain the position of the switching member; In the third state, the voltage supply provides a second voltage electrically opposite to the first voltage to the induction coil, so that the second rod body generates a repulsive force against the magnetic member to drive the first The rod body reaches this second position. The electromagnetic switching valve according to claim 10, wherein the at least one valve body includes a plurality of valve bodies, and the valve bodies include a first valve body and a second valve body, among them, Both the first side surface and the second side surface of the first valve body have a fluid hole, One of the first side surface and the second side surface of the second valve body has a fluid hole, while the other does not; Wherein, the first opening of the first valve body is docked with the first opening of the second valve body, and the control rod is disposed on the outer wall of the first valve body and the outer wall of the second valve body Inside. A bed structure, including: An electromagnetic switch valve, including: An electromagnetic drive part; A control lever, including a lever body and a switching element connected to each other, the control lever is mechanically coupled to the electromagnetic driving member through the lever body; At least one valve body, including: An outer wall has a first upper surface, a first side surface and a second side surface, the first upper surface is connected to the first side surface and the second side surface, wherein the first upper surface has a first An opening, at least one of the first side surface and the second side surface has a fluid hole; An inner wall is disposed in the outer wall, the inner wall shields the at least one fluid hole, the inner wall has a second upper surface and a third side surface connected to the second upper surface, the second upper surface has a A second opening, the size of the switch portion is larger than the size of the second opening, Wherein the opening direction of the first opening and the second opening are the same, and the third side surface has an inner opening; and A connecting wall disposed in the outer wall, wherein the connecting wall connects the inner opening of the inner wall and the fluid hole of the outer wall; and A fluid driving device connected to the fluid hole of the outer wall and adapted to drive fluid to the flow channel in the valve body through the fluid hole, among them, In a first state, the electromagnetic driving member drives the lever body to drive the switching member to a first position; In a second state, the electromagnetic driving element is powered off to maintain the position of the switching element; In a third state, the electromagnetic drive member drives the lever body to drive the switch member to a second position, wherein the first position is different from the second position; and At least one inflatable bladder is connected to the at least one fluid hole of the valve body, and the fluid driving device drives fluid to inflate the at least one inflatable bladder after the fluid passes through the valve body. The bed structure according to claim 16, wherein the at least one valve body includes a plurality of valve bodies, and the valve bodies include a first valve body and a second valve body, among them, Both the first side surface and the second side surface of the first valve body have a fluid hole, One of the first side surface and the second side surface of the second valve body has a fluid hole, while the other does not; Wherein, the first opening of the first valve body is docked with the first opening of the second valve body, and the control rod is disposed on the outer wall of the first valve body and the outer wall of the second valve body Inside. The bed structure according to claim 16, wherein the first valve body and the second valve body each include a limiting portion disposed in the corresponding inner wall, and the limiting portion includes a limiting hole, The rod body of the control rod is embedded in the two limiting parts. The bed structure according to claim 16, wherein the electromagnetic driving member further comprises: One shell with two opposite embedded holes; A second rod body, penetrating at least one of the two embedding holes, wherein the second rod body is connected to the first rod body of the control rod; At least one induction coil is disposed in the housing, and the at least one induction coil surrounds the rod body; A voltage supply, coupled to the at least one induction coil; and A magnetic member is disposed in at least one of the two embedding holes. The bed structure according to claim 19, wherein, In the first state, the voltage supply in the electromagnetic driving member provides a first voltage to the induction coil, so that the second rod body generates a repulsive force against the magnetic member to drive the first rod body to The first position In the second state, the voltage supplier in the electromagnetic driving member stops supplying voltage to the induction coil, so that the rod body is attracted by the magnetic member to maintain the position of the switching member; In the third state, the voltage supply in the electromagnetic driving member provides a second voltage electrically opposite to the first voltage to the induction coil, so that the second rod body repels the magnetic member Force to drive the first rod to the second position.

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