A multi-channel two-position five-way valve

Abstract

This invention relates to the field of two-position five-way valves, and more particularly to a multi-channel two-position five-way valve, comprising a hollow valve core. Several inner air channels are formed on the outer surface of the valve core by multiple fan-shaped baffles and longitudinal baffles. A leak-proof cover is fitted over the valve core, sealingly contacting the inner air channels. Several outer air channels are formed on the outer side of the leak-proof cover by multiple annular ribs and longitudinal ribs. A shell is fitted over the leak-proof cover, sealingly contacting the outer air channels. A motor is installed at one end of the leak-proof cover to drive the valve core to reciprocate. The shell is provided with an atmospheric inlet, an atmospheric outlet, and a common outlet. A turbine fan for pressurizing the gas is provided on one side of the shell. The shell is provided with an outlet channel communicating with the turbine fan inlet and an inlet channel communicating with the turbine fan outlet. The movement of the valve core driven by the motor can change the airflow direction, thereby meeting the user's needs.

Description

Technical Field

[0001] This invention relates to a two-position five-way valve, and more specifically to a two-position five-way valve with multiple air passages. Background Technology

[0002] Existing gas flow direction switching is mainly achieved by connecting two two-position three-way valves in parallel, such as... Figure 1 As shown, the existing valve group consists of two two-position three-way valves, valve A and valve B, connected in parallel at both ends of the turbine. Valve A and valve B have a total of six ports: A1, A2, A3, B1, B2, and B3. Among them, A3 and B3 are two common ports of valve A and valve B, which are always in the connected state in different states. A1, A2, B1, and B2 are switching ports, which are in the connected or disconnected state as the state changes.

[0003] exist Figure 1 In the configuration, common interface A3 connects to the turbine's inlet, and common interface B3 connects to the turbine's outlet. Both A1 and B1 are connected to the atmosphere. A2 and B2 converge at interface C, forming a common output terminal. When the valve assembly is in intake mode, A1 connects to A3, and B3 connects to B2. Through this formed pathway, the turbine draws in air from the atmosphere, and the gas ultimately flows to the common output terminal C, creating positive pressure. Figure 2 As shown, when the valve group switches to the exhalation mode, A2 and A3 are connected, and B3 and B1 are connected. Through the formed passage, the turbine draws in air from the common output end C, and the gas finally flows into the atmosphere through the interface B1, thus creating a negative pressure at the common output end.

[0004] Meanwhile, when using a single two-position five-way valve to achieve the above process, in order to ensure that the airflow can move in the preset direction, the center of gravity inside the valve core does not coincide with the central axis, which makes it easy for vibration and wear to occur during long-term operation. In addition, in order to ensure the sealing effect, the entire valve body is also prone to being large in size.

[0005] The two-position five-way valve disclosed in CN216590078U includes a valve body, a valve core, a first air inlet, a first air outlet, and a second air outlet. The valve body has a transverse inner cavity, one end of which is covered by a positioning seat, and the other end of which is covered by a valve cover. A sleeve is provided inside the inner cavity, and a valve core is provided inside the sleeve and is slidably connected to the sleeve wall. The valve cover has an air inlet that communicates with one end of the valve core. A return spring is provided between the other end of the valve core and the positioning seat. The valve body has a first air inlet on the upper side and a first air outlet and a second air outlet on the lower side. The conventional two-position five-way valve disclosed herein cannot achieve the function of airflow reversal. Summary of the Invention

[0006] The technical problem to be solved by the present invention is that, through spatial structure design, the switching between positive and negative pressure is realized under the condition of one motor operation, thereby reducing costs and reducing the size of the valve assembly.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention...

[0008] First, a two-position five-way valve with multiple air passages is provided, including a hollow valve core. Several inner air passages are formed on the outer side of the valve core through multiple fan-shaped baffles and longitudinal baffles. A leak-proof cover is fitted over the valve core, sealingly contacting the inner air passages. Several outer air passages are formed on the outer side of the leak-proof cover through several annular ribs and longitudinal ribs. A shell is fitted over the leak-proof cover, sealingly contacting the outer air passages. A motor for driving the valve core to reciprocate is installed at one end of the leak-proof cover. An atmospheric inlet, an atmospheric outlet, and a common outlet are provided on the shell. A turbine fan for pressurizing the gas is provided on one side of the shell. An outlet channel communicating with the turbine fan inlet and an inlet channel communicating with the turbine fan outlet are provided on the shell. A sealing device is provided between the end of the valve core and the leak-proof cover.

[0009] Furthermore, the inner air passage is formed by fan-shaped baffles and longitudinal baffles to form an air exchange passage, a transition passage, and an air outlet passage arranged sequentially from the end of the valve core. The air exchange passage is divided into an air inlet passage and an air outlet passage by a longitudinal baffle. The air inlet passage and the air outlet passage are connected to the inside of the valve core. One end of the air outlet passage is open. The fan-shaped baffles and longitudinal baffles form several air passages to guide the flow of air and ensure that the airflow can move in a preset manner.

[0010] Furthermore, the outer air passage forms two annular exchange air passages through annular ribs and longitudinal ribs. Each exchange air passage is divided into two air passages by two longitudinal ribs. One exchange air passage includes a first air passage connected to the common end outlet (330) and a second air passage connected to the inlet passage. The other exchange air passage includes a third air passage connected to the atmospheric outlet and a fourth air passage connected to the outlet passage. Leakage holes are provided on the first, second, third, and fourth air passages. The leakage holes enable smooth communication between the inner and outer air passages. When the motor drives the valve core to move, smooth communication is enabled between the designated air passage of the inner air passage and the designated air passage of the outer air passage.

[0011] Furthermore, one end of the air leak cover is sealed and equipped with a ignition motor, while the other end is open and connected to the atmospheric air inlet. The outer side of the open end of the air leak cover is sealed and inserted into the inner wall of the outer shell. The insertion and connection between the opening of the air leak cover and the inner wall of the outer shell allows the gas passing through the atmospheric air inlet to enter only into the air leak cover, thereby preventing airflow from overflowing and improving the stability and sealing of the device.

[0012] Furthermore, the opening end of the air leak cover is provided with multiple notches along the circumferential direction, and the inner wall of the outer shell is provided with a limiting plate that engages with the notch at the corresponding position. The limiting plate prevents the air leak cover from rotating in the reverse circumferential direction on its own, thereby ensuring that the various air passages can be stably connected together and improving the stability of the device.

[0013] Furthermore, the motor drives the valve core to move back and forth, and through the air leakage hole, the overflow air passage and the transition air passage alternately connect with the second air passage, the inlet air passage and the transition air passage alternately connect with the first air passage, and the outlet air passage intermittently connects with the fourth air passage; through the designated air passage in the inner layer and the designated air passage in the outer layer, the gas can move smoothly in a preset manner.

[0014] Furthermore, the sealing device includes a sector plate, which is provided at the end of the valve core corresponding to the position of the third air passage. The sector plate, the longitudinal partition, and the inner wall of the leakage cover form an air passage that connects the overflow air passage with the third air passage. By setting the sector plate, not only is a sealing effect achieved, but the uneven weight distribution on the outside of the valve core can also be neutralized, ensuring that the center of gravity of the valve core is on the center axis, improving the stability of the device, and at the same time, the length of the entire valve body can be shortened as much as possible, reducing the volume of the valve body.

[0015] Furthermore, the longitudinal ribs connected to both ends of the sector plate are sealed and fitted to the side of the limiting plate; the limiting plate is used to limit the valve core in the circumferential direction to ensure that the valve core will not rotate in the circumferential direction, so that the various air passages can be smoothly connected.

[0016] Furthermore, one end of the valve core has an opening, and a plug for sealing is provided at the opening. The end of the air leak cover has a process hole near the motor. The motor and the air leak cover are detachably connected by a nut. The opening on the valve core is to facilitate the assembly of the valve core and the motor, and to facilitate production and processing.

[0017] Furthermore, the vent cover is provided with an installation edge, which is detachably connected to the outer shell by bolts; the outer shell and the vent cover can be easily assembled using bolts, facilitating mass production and maintenance.

[0018] The present invention has the following beneficial effects: The invention uses a motor to drive the movement of the valve core, enabling a specific coordination between the inner and outer air passages to effectively change the airflow direction. Simultaneously, during operation, the turbine fan only needs to rotate in one direction, effectively improving the stability of the device, reducing losses, and increasing work efficiency. Furthermore, the fan-shaped plate optimizes the valve core's center of gravity, ensuring greater stability during movement and providing a sealing effect. This reduces the need for other complex structures, significantly minimizing the device's size. The ingenious structure utilizes a rational spatial layout, requiring only one motor to achieve the desired functions. Installation and assembly are also more convenient and cost-effective. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a diagram of the airway in the intake mode of the existing valve assembly.

[0021] Figure 2 This is an airway diagram under the exhalation mode of the existing valve assembly.

[0022] Figure 3 This is a three-dimensional structural diagram of this embodiment;

[0023] Figure 4 for Figure 3 Rear view;

[0024] Figure 5 This is the first sectional view of this embodiment;

[0025] Figure 6 This is the second sectional view of this embodiment;

[0026] Figure 7 This is a three-dimensional structural diagram of the valve core in this embodiment;

[0027] Figure 8 for Figure 7 Rear view;

[0028] Figure 9 A three-dimensional structural diagram of the leak cover in this embodiment;

[0029] Figure 10 for Figure 9 Rear view;

[0030] Figure 11 This is a side view of this embodiment;

[0031] Figure 12 This is a stepped sectional view of this embodiment;

[0032] Figure 13 This is a diagram of the airway when positive pressure is generated in this embodiment;

[0033] Figure 14 This is a diagram of the airway when negative pressure is formed in this embodiment;

[0034] Figure 15 This is a diagram showing the gas flow direction when positive pressure is generated in this embodiment;

[0035] Figure 16 This is a diagram showing the first gas flow direction when a negative pressure is formed in this embodiment;

[0036] Figure 17 This is a diagram showing the second gas flow direction when positive pressure is formed in this embodiment. Detailed Implementation

[0037] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0039] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] This invention provides a two-position five-way valve with multiple air passages, such as... Figure 3 , Figure 4 and Figure 5 As shown, the device includes a hollow valve core 101. Several inner air passages are formed on the outer side of the valve core 101 by several fan-shaped baffles and longitudinal baffles. A leak hood 201 is fitted over the valve core 101, with the inner air passages in sealed contact with the inner wall of the leak hood 201, allowing each inner air passage to smoothly guide airflow. Simultaneously, the outer side of the leak hood 201 also forms outer air passages through several annular ribs and longitudinal ribs. A housing 301 is fitted over the leak hood 201, with the outer air passages in sealed contact with the inner wall of the housing 301, allowing the outer air passages to also smoothly guide airflow. A motor 401 is installed at one end of the leak hood 201, which drives the valve core 101 to reciprocate within the leak hood 201, enabling the inner and outer air passages to connect in a preset manner.

[0042] Specifically, in this embodiment, the outer casing 301 is provided with an atmospheric inlet 310, an atmospheric outlet 320, and a common end outlet 330. The atmospheric inlet 310 and the atmospheric outlet 320 are both connected to the atmosphere, while the common end outlet 330 can be connected to a ventilator. The outer casing 301 is also provided with an outlet channel 340 and an inlet channel 350. The outlet channel 340 is connected to the inlet of the turbine fan 501, and the inlet channel 350 is connected to the outlet of the turbine fan 501. The turbine fan 501 pressurizes the airflow. Through the connection between the inner and outer airways, the pressurized airflow of the turbine fan 501 can be guided to form positive and negative pressure at the common end outlet 330. When used with a ventilator, it can assist the user's breathing.

[0043] Specifically, the overall airflow path is as follows: Figure 13 and Figure 14 As shown, air first enters the device through the air inlet 310, then flows into the turbine fan 501 through the air inlet channel 340, and then enters the device again through the air outlet channel 350 from the turbine fan 501. Finally, it is discharged through the common outlet 330, which is currently under positive pressure. To create negative pressure at the common outlet 330, the motor 401 drives the valve core 101 to move, thus establishing a new connection between the inner and outer air passages in the device. At this time, the common end outlet 330 is under negative pressure. After the gas from the common end outlet 330 enters the device, it flows into the turbine fan 501 through the air inlet channel 340. After passing through the turbine fan 501, it enters the device again through the air outlet channel 350 and is then discharged through the atmospheric outlet 320. During the process of forming negative pressure at the common end outlet 330, it does not mean that the common end outlet 330 forms negative pressure on its own, but rather that it forms negative pressure under the action of the turbine fan 501 drawing in gas.

[0044] During the above process, it can be seen that the turbine fan 501 does not change its rotation direction throughout the entire process, and the airflow always moves in one direction. This ensures the stable operation of the turbine fan 501, reduces losses, and improves work efficiency. Only the motor 401 needs to drive the valve core 101 to move, which simplifies the structure of the device and demonstrates ingenious design.

[0045] like Figure 7 and Figure 8 As shown, in this embodiment, in order to ensure that the airflow direction meets the preset requirements, the inner air passage outside the valve core 101 includes an air exchange passage, a transition passage 120 and an air outlet passage 130. The air exchange passage is divided into an inlet passage 130 and an overflow passage 111 by a longitudinal partition. Both the inlet passage 110 and the outlet passage 130 are connected to the interior of the valve core 101, and one end of the overflow passage 111 is not blocked by the longitudinal partition, so that one end forms an opening.

[0046] like Figure 9 and Figure 10 As shown, the outer air passage outside the air leakage hood 201 includes two annular exchange air passages. Each of the two exchange air passages is formed into two separate air passages by two longitudinal ribs, specifically the first air passage 210, the second air passage 220, the third air passage 230, and the fourth air passage 240. Each of the first air passage 210, the second air passage 220, the third air passage 230, and the fourth air passage 240 is provided with air leakage holes 211, 221, 231, and 241. The corresponding air leakage holes are used to connect the inner air passages and the outer air passages and guide the flow of gas.

[0047] like Figure 4 As shown, in order to ensure that the airflow can move along the preset path, the first air passage is connected to the common end outlet 330, the second air passage 220 is connected to the air outlet channel 350, the third air passage 230 is connected to the atmospheric outlet 320, and the fourth air passage 240 is connected to the air outlet channel 340.

[0048] Specifically, such as Figure 5 As shown, when a positive pressure is formed at the common end output port 330, the motor 401 shortens, so that the valve core 101 is located at the leftmost end of the air leakage cover 201. At this time, the transition air passage 120 is connected to the first air passage 210 and the second air passage 220 through two air leakage holes 211 and 221 respectively. At the same time, the inlet air passage 110, the overflow air passage 111 and the outlet air passage 130 are all in contact with the inner wall of the air leakage cover 201, so that it does not work. Meanwhile, the air leakage holes 231 and 241 of the third air passage 230 and the fourth air passage 240 are not blocked.

[0049] When the common output terminal 330 is under positive pressure, the airflow direction is as follows: Figure 15At this time, the air enters through the air inlet 310, then enters between the air hood 201 and the valve core 101 through the end face opening of the air hood 201, then enters the fourth air passage 240 through the air vent 241, and then enters the air intake passage 340. The airflow pressurized by the turbine fan 501 enters the second air passage 220 through the air outlet passage 350, and enters the transition air passage 120 through the air vent 221. The pressurized airflow flows through the transition air passage 120, passes through the air vent 211, and finally enters the common end outlet 330. At this time, because of the pressurization by the turbine fan 501, the common end outlet 330 forms a pressurized air pressure, which is positive pressure, to assist the user in inhaling air.

[0050] When it is time to expel the user's exhaled air, such as Figure 6 As shown, at this time, the motor 401 extends and the valve core 101 moves to the rightmost end of the air leak cover 201. At this time, the overflow air passage 111 is connected to the second air passage 220, the inlet air passage 110 is connected to the first air passage 210, and the outlet air passage 130 is connected to the fourth air passage 240. At this time, the transition air passage 120 is sealed to the inner wall of the air leak cover 201, so that it does not work. At the same time, since one end of the overflow air passage 111 is open, an air passage will be formed from the opening through each longitudinal partition, so that the air leak hole 231 is connected to the third channel 230.

[0051] Specifically, such as Figure 16 and Figure 17 As shown, the airflow path is as follows: gas from the common end outlet 330 enters the first air passage 210, then enters the inlet air passage 110, and then enters the valve core 101. After that, it enters the fourth air passage 240 through the outlet air passage 130, then enters the turbine fan 501 through the inlet passage 340. After being pressurized, it enters the second air passage 220 through the outlet air passage 350, and then enters the overflow air passage 111. At this time, it enters the third air passage 230 through the opening of the overflow air passage 111, and then is discharged through the atmospheric outlet 320. (Note that since the common end outlet 330 is connected to the inlet of the turbine fan 501, it is equivalent to the turbine fan 501 drawing air from the common end outlet 330 to create a negative pressure).

[0052] For the sake of the overall sealing and stability of the device, at this time, as follows: Figure 11 and Figure 12As shown, a sector plate 140 is installed at the end of the valve core 101. The side of the sector plate 140 is in sealed contact with the inner wall of the vent 201. Under the action of the sector plate 140, a sector channel is formed at the end of the vent 201 to rectify the gas entering the vent 201 from the atmospheric inlet 310. At the same time, the two ends of the sector plate 140 are connected to the longitudinal partition on the valve core 101 to form a sealed space to internally seal the vent 231. In order to save materials and reduce process requirements, the third air passage 230 and the fourth air passage 240 do not need to be installed with annular ribs on one side. They can be sealed by inserting them into the inner wall of the outer casing 301.

[0053] Meanwhile, the fan-shaped plate 140 can neutralize the weight distribution around the valve core 101. Since the fan-shaped baffles and longitudinal baffles are unevenly distributed on the outside of the valve core 101, the center of gravity of the valve core 101 is easily not on the central axis of the valve core. The addition of the fan-shaped plate 140 can neutralize this imbalance, ensuring that the center of gravity of the valve core 101 is on or near the central axis, and ensuring that the valve core 101 is more stable during reciprocating movement. At the same time, the fan-shaped plate 140 can make more efficient use of space, making the device shorter in the axial direction and effectively saving space.

[0054] Meanwhile, two notches 250 are opened on the end face of the air leak cover 201. A limiting plate 360 ​​is provided on the inner wall of the outer cover 30 at the position corresponding to the notch 250, which engages with the notch 250. The limiting plate 360 ​​limits the air leak cover 201 so that it cannot rotate in the circumferential direction. At the same time, the longitudinal partition sides at both ends of the fan-shaped plate 140 are also in sealed contact with the side of the limiting plate 360, which can also limit the valve core 101 so that the valve core 101 will not rotate in the circumferential direction.

[0055] like Figure 5 and Figure 6 As shown, one end of the valve core 101 is open. This opening is to facilitate the connection between the motor 401 and the valve core 101. The output shaft of the motor 401 passes through the end face of the valve core 101. Then, the nut can be screwed onto the output shaft of the motor 401 through the opening of the valve core 101, thereby connecting the valve core 101 and the motor 401. Then, the opening can be sealed by the plug 150 to ensure that the inside of the valve core 101 is sealed.

[0056] At the same time, to prevent the output shaft of motor 401 from shifting during installation, such as Figure 9 As shown, a process hole 260 is opened on one side of the air leak cover 201 at the position corresponding to the output shaft of the motor 401. At this time, the output shaft of the motor 401 can be clamped through the process hole 260, so as to ensure that the output shaft does not deviate when tightening the nut.

[0057] like Figure 3 and Figure 4 As shown, the vent cover 201 is provided with an installation edge, and there are several protrusions on the installation edge. The protrusions are connected to the outer cover 301 by bolts, so as to facilitate the assembly and maintenance of the vent cover 201 and the outer cover 301.

[0058] It should be understood that the above description of specific embodiments of the present invention is only for illustrating the technical approach and features of the present invention, and is intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. However, the present invention is not limited to the specific embodiments described above. All changes or modifications made within the scope of the claims of the present invention should be covered within the protection scope of the present invention.

Claims

1. A two-position five-way valve of the multi-passage type, characterized by comprising: The device includes a hollow valve core (101). The outer surface of the valve core (101) forms several inner air passages through multiple fan-shaped and longitudinal partitions. A leak-proof cover (201) is fitted over the valve core (101) to seal against the inner air passages. Several outer air passages are formed on the outer side of the leak-proof cover (201) through several annular and longitudinal ribs. A shell (301) is fitted over the leak-proof cover (201) to seal against the outer air passages. A motor (401) is installed at one end of the leak-proof cover (201) to drive the valve core (101) to reciprocate. The outer casing (301) is provided with an atmospheric inlet (310), an atmospheric outlet (320), and a common outlet (330). A turbine fan (501) for pressurizing gas is provided on one side of the outer casing (301). The outer casing (301) is provided with an outlet channel (340) communicating with the inlet of the turbine fan (501) and an inlet channel (350) communicating with the outlet of the turbine fan (501). A sealing device is provided between the end of the valve core (101) and the leak cover (201). The inner air passage passes through a fan-shaped... The baffle and longitudinal baffle form an air exchange passage, a transition passage (120) and an air outlet passage (130) arranged sequentially from the end of the valve core (101). The air exchange passage is divided into an inlet passage (110) and an overflow passage (111) by a longitudinal baffle. The inlet passage (110) and the air outlet passage (130) are connected to the inside of the valve core (101). The overflow passage (111) is open at one end. The outer passage forms two annular exchange passages by annular ribs and longitudinal ribs. Each exchange passage is divided by two longitudinal ribs. It consists of two air passages. One exchange air passage includes a first air passage (210) connected to the common end outlet (330) and a second air passage (220) connected to the inlet passage (350). The other exchange air passage includes a third air passage (230) connected to the atmospheric outlet (320) and a fourth air passage (240) connected to the outlet passage (340). The first air passage (210), the second air passage (220), the third air passage (230) and the fourth air passage (240) are all provided with air leakage holes (211, 221, 231, 241).

2. The two-position five-way valve with multiple air passages according to claim 1, characterized in that, The air leak cover (201) is sealed at one end and has a motor (401) installed thereon. The other end is open and connected to the atmospheric air inlet (310). The outer side of the open end of the air leak cover (201) is sealed and inserted into the inner wall of the outer shell (301).

3. A two-position five-way valve with multiple air passages according to claim 2, characterized in that, The air leak cover (201) has multiple notches (250) along the circumferential direction at its opening end, and the inner wall of the outer shell (301) is provided with a limiting plate (360) that engages with the notch (250) at the corresponding position of the notch (250).

4. A two-position five-way valve with multiple air passages according to claim 3, characterized in that, The motor (401) drives the valve core (101) to move back and forth, and through the air leakage holes (211, 221, 231, 241), the overflow air passage (111) and the transition air passage (120) are alternately connected to the second air passage (220), the inlet air passage (110) and the transition air passage (120) are alternately connected to the first air passage (210), and the outlet air passage (130) is intermittently connected to the fourth air passage (240).

5. A two-position five-way valve with multiple air passages according to claim 3, characterized in that, The sealing device includes a fan-shaped plate (140). The fan-shaped plate (140) is provided at the end of the valve core (101) at the position corresponding to the third air passage (230). The fan-shaped plate (140) forms an air passage between the longitudinal partition and the inner wall of the air leakage cover (201) to connect the overflow air passage (111) with the third air passage (230).

6. A two-position five-way valve with multiple air passages according to claim 5, characterized in that, The sides of the longitudinal ribs connected to both ends of the sector plate (140) are sealed and fitted to the sides of the limiting plate (360).

7. A two-position five-way valve with multiple air passages according to claim 1, characterized in that, The valve core (101) has an opening at one end, and a plug (150) for sealing is provided at the opening. The end of the air leak cover (201) is provided with a process hole (260) near the motor (401). The motor (401) and the air leak cover (201) are detachably connected by a nut.

8. A two-position five-way valve with multiple air passages according to claim 1, characterized in that, The vent cover (201) is provided with an installation edge, which is detachably connected to the outer shell (301) by bolts.

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