A double-layer coaxial two-position five-way valve

Abstract

The present application relates to two five-way valve field, especially to a kind of double-layer coaxial two five-way valve, including shell and turbo fan for supercharging, hollow spool is matched and installed in the shell, the shell one end is equipped with motor for driving spool reciprocating movement, the other end is equipped with the end head of intercommunication, the end head is opened with atmospheric air inlet and atmospheric air outlet, the shell is provided with with turbo fan inlet intercommunication's outlet air duct and with turbo fan outlet intercommunication's inlet channel, and the public end output channel capable of forming positive and negative pressure inside, the spool outside is formed by several fan-shaped ring baffles and longitudinal valve plate several air exchange air duct, the device only needs to utilize motor to drive spool reciprocating movement to make airflow move according to preset mode, and it is ingenious in design, and low in cost.

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 double-layer coaxial design. Background Technology

[0002] Existing gas flow direction switching methods mainly achieve this 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] 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. An air inlet is provided on the valve cover, which is connected to 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 in this article cannot realize the function of airflow reversal. Summary of the Invention

[0005] 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.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] First, a double-layer coaxial two-position five-way valve is provided, characterized in that it includes a housing and a turbine fan for pressurization. A hollow valve core is installed inside the housing. A motor for driving the valve core to reciprocate is installed at one end of the housing, and a connecting end is installed at the other end. An atmospheric inlet and an atmospheric outlet are provided on the end. The housing is provided with an outlet channel communicating with the turbine fan inlet and an inlet channel communicating with the turbine fan outlet, as well as a common end output channel that can form positive and negative pressure inside. Several ventilation channels are formed on the outer side of the valve core through several fan-shaped annular baffles and longitudinal valve plates.

[0008] Furthermore, the air exchange duct includes a first air duct, a transition air duct, and an outlet air duct arranged sequentially. The first air duct is divided into an inlet air duct and an outlet air duct by a longitudinal baffle. The inlet air duct and the outlet air duct are connected to the inside of the valve core. One end of the outlet air duct is open. Various air ducts are formed on the valve core by using annular baffles and longitudinal baffles, so that each air duct is connected to the corresponding channel on the outer shell in a specific order, thereby guiding the airflow to move in a preset manner.

[0009] Furthermore, the motor drives the valve core to move back and forth, so that the transition air passage and the overflow air passage are alternately connected with the intake air passage, the intake air passage and the transition air passage are alternately connected with the common end output channel, and the exhaust air passage is intermittently connected with the exhaust channel; connecting the designated air passage with the specific channel ensures that the airflow can flow in a preset manner to achieve the desired effect.

[0010] Furthermore, the end is provided with a shaped baffle that mates with the valve core to separate the air inlet and the air outlet. The side of the valve core end and the side of the shaped baffle are in a sealed contact. By using the shaped baffle to separate the air inlet and the air outlet, filter material can be installed on the air inlet to achieve a purification effect. Moreover, the air outlet does not need to be fitted with filter material, which can reduce air resistance and facilitate exhaust.

[0011] Furthermore, the valve core end has two longitudinal baffles whose sides are in sealing contact with the side of the irregular baffle; the irregular baffles limit the valve core in the circumferential direction, which can prevent the valve core from rotating on its own, thereby avoiding misalignment of various air passages and channels, and improving the stability of the device.

[0012] Furthermore, the irregularly shaped baffle has a side surface that forms a fan-shaped flow channel with the inner wall of the end, which communicates with the gas outlet channel; this rectifyes the gas entering the device, ensuring that the gas enters the device stably and smoothly.

[0013] Furthermore, the air outlet channel is provided with a first connector, the air inlet channel is provided with a second connector, the common end output channel is provided with a third connector, and the atmospheric outlet is provided with a fourth connector; the connectors allow the device to be quickly installed and put into use, enabling rapid deployment.

[0014] Furthermore, one end of the valve core is open, and a sealing plug is provided at the opening; the opening allows the motor and the valve core to be easily installed together, and the plug ensures the sealing of the valve core.

[0015] Furthermore, the motor output shaft and the valve core end face are detachably connected by a nut; the nut allows the valve core and motor to be easily installed together, which is beneficial for the installation and assembly of this device.

[0016] Furthermore, the outer shell is provided with a mounting edge, which is detachably connected to the end head by bolts; the bolts allow the end head and the outer shell to be quickly spliced ​​together, facilitating assembly and use.

[0017] The present invention has the following beneficial effects: The present invention uses a motor to drive the movement of the valve core, so that the specific cooperation between the air exchange channel on the valve core and the channel on the outer shell can effectively change the airflow direction, so that positive and negative pressure situations appear on the common end output channel. At the same time, during operation, the turbine fan only needs to maintain rotation in one direction, which effectively improves the stability of the device, reduces losses, and improves working efficiency. In addition, connectors are set at various locations where airflow occurs, which can facilitate the quick and easy installation and use of the device. The structure of the device is ingenious. By making reasonable use of the spatial structure, only one motor is needed to achieve the required functions, which can greatly reduce the size of the device and make the installation and assembly of the device more convenient and cost-effective. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a diagram of the airway in the intake mode of the existing valve assembly.

[0020] Figure 2 This is an airway diagram under the exhalation mode of the existing valve assembly.

[0021] Figure 3 This is a three-dimensional structural diagram of this embodiment;

[0022] Figure 4 for Figure 3 Rear view;

[0023] Figure 5 This is the first sectional view of the device;

[0024] Figure 6 This is a second sectional view of the device;

[0025] Figure 7 This is a schematic diagram of the valve core mechanism of this device.

[0026] Figure 8 for Figure 7 Rear view;

[0027] Figure 9 This is a side view of this embodiment;

[0028] Figure 10 This is a stepped sectional view of this embodiment;

[0029] Figure 11 This is a pneumatic diagram showing the positive pressure generated in this embodiment;

[0030] Figure 12 This is a pneumatic diagram showing the formation of negative pressure in this embodiment;

[0031] Figure 13 This is a diagram showing the gas flow direction when positive pressure is generated in this embodiment;

[0032] Figure 14 This is a diagram showing the first gas flow direction when a negative pressure is formed in this embodiment;

[0033] Figure 15 This is a diagram showing the second gas flow direction when a negative pressure is formed in this embodiment. Detailed Implementation

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] This invention provides a two-position five-way valve with double-layer coaxial design, such as... Figure 3 , Figure 4 and Figure 5 As shown, the device includes a housing 100, inside which a suitable valve core 200 is installed. The housing 100 is provided with an air outlet channel 110, an air inlet channel 120, and a common end output channel 130. Specifically, the air outlet channel 110 is connected to the air inlet of the turbine fan 500, and the air inlet channel 120 is connected to the air outlet of the turbine fan 500. The turbine fan 500 can pressurize the flowing air. The outer surface of the valve core 200 forms several air exchange channels through fan-shaped baffles and longitudinal baffles. By connecting different air exchange channels with corresponding channels on the housing, the airflow is guided to move along a specified path, which can create positive and negative pressure in the common end output channel 130. The common end output channel 130 can be connected to the ventilator. When positive pressure is formed, it can assist the user in inhalation. When negative pressure is formed in the common end output channel 130, it can assist the user in exhalation.

[0039] Specifically, a motor 300 is installed at one end of the housing 100. The output shaft of the motor 300 is connected to the valve core 200, which drives the valve core 200 to move back and forth inside the housing 100, so that different ventilation channels are connected to the designated channels, thereby forming positive and negative pressure on the common end output channel 130. The other end of the housing 100 is connected to an end 400, which has an atmospheric inlet 410 and an atmospheric outlet 420.

[0040] At this time, the airflow direction of the entire device is mainly... Figure 11 and Figure 12As shown, firstly, air enters the outer casing 100 through the air inlet 410, then enters the turbine fan 500 through the outlet channel 110. At this time, the turbine fan 500 pressurizes the airflow, and then it enters the outer casing 100 again through the inlet channel 120, and then is discharged from the common end outlet channel 130. At this time, the common end outlet channel 130 is in a positive pressure state. When the common end outlet channel 130 is in a negative pressure state, the gas enters the outer casing 100 through the common end outlet channel 130, then enters the turbine fan 500 through the outlet channel 110, then enters the outer casing 100 again through the inlet channel 120, and finally is discharged through the air outlet 420.

[0041] As can be seen from the above process, the turbine fan 500 always pressurizes the gas in one direction. Therefore, during the air exchange process, the turbine fan 500 will not change its rotation direction, which can ensure the stable operation of the device, improve work efficiency, and reduce wear.

[0042] like Figure 7 and Figure 8 As shown, in order to achieve the above process, specifically in this embodiment, the valve core 200 is opened from one end of the motor 300 and is sequentially provided with a first air passage, a transition air passage 220 and an outlet air passage 230. At the same time, the first air passage is divided into an inlet air passage 210 and an overflow air passage 211 by a longitudinal partition. The overflow air passage 211 has no longitudinal partition at one end, so it has an opening. Both the inlet air passage 210 and the outlet air passage 230 are connected to the inside of the valve core 200.

[0043] In the use of this embodiment, if Figure 5 As shown, the motor 300 drives the valve core 200 to move to the left, so that the valve core 200 is located at the leftmost end of the housing 100. At this time, the transition air passage 220 is connected to the intake passage 120 and the common end output passage 130. At this time, the intake air passage 210, the overflow air passage 211 and the exhaust air passage 230 are all in contact with the inner wall of the housing 100, so that they do not work. At this time, the annular baffle on the exhaust air passage 230 does not block the intake passage 110, so that the intake passage 110 is connected to the atmospheric intake port 410.

[0044] At this time, the direction of gas flow is as follows Figure 13As shown, external gas enters the end 400 through the atmospheric inlet 410, then enters the housing 100 through the opening, and then enters the turbine fan 500 through the outlet channel 110 to pressurize the airflow. The pressurized airflow then enters the housing 100 again through the inlet channel 120, and then enters the transition channel 220. Guided by the transition channel 220, the airflow is introduced into the common end output channel 130, which is now in a positive pressure state, which can be used to assist the user in inhaling.

[0045] When negative pressure needs to be created, such as... Figure 6 , Figure 14 and Figure 15 As shown, the motor 300 drives the valve core 200 to move to the right, connecting the overflow air passage 211 with the intake passage 120, connecting the intake air passage 210 with the common end output passage 130, and simultaneously connecting the exhaust air passage 230 with the exhaust passage 110. At this time, the atmospheric intake port 410 is closed, and the exhaust gas from the common end output passage 130 enters the intake air passage 210, then enters the valve core 200, and is then guided through the exhaust air passage 230 into the intake passage 110. After being pressurized by the turbine fan 500, it enters the intake passage 120 and then enters the overflow air passage 211. Since there is an opening in the overflow air passage 211, the airflow is discharged from the overflow air passage 211 and then discharged from the atmospheric exhaust port 420 through the space between the outer wall of the valve core 200 and the inner wall of the outer shell 100. Specifically, the turbine fan 500 draws the gas out of the common end output passage 130, thereby creating a negative pressure.

[0046] In order to improve the sealing performance and stability of this device, such as Figure 9 and Figure 10 As shown, a shaped baffle 430 that mates with the valve core 200 is provided inside the end 400. The shaped baffle 430 is used to separate the atmospheric inlet 410 and the atmospheric outlet 420 inside the end 400. The end of the valve core 200 is in sealed contact with the side of the shaped baffle 430. At the same time, there is a fan-shaped flow channel formed between one side of the shaped baffle 430 and the inner wall of the end 400, which is connected to the outlet channel 110. Therefore, the gas entering the housing 100 through the atmospheric inlet 410 will be rectified through the fan-shaped flow channel to ensure that the gas can enter the outlet channel 110 stably and smoothly. At the same time, filter material can be installed inside the end 400 to filter the gas entering the device and prevent pollutants in the gas from affecting the device.

[0047] Meanwhile, two longitudinal baffles on the end side of the valve core 200 contact the side of the irregular baffle 430, thereby fixing the valve core 200 in the circumferential direction and preventing the valve core 200 from rotating in the circumferential direction during use, thus improving the stability of the device.

[0048] like Figure 5 and Figure 6 As shown, the valve core 200 has an opening at one end, which allows the motor 300 to be easily assembled with the valve core 200. The output shaft of the motor 300 passes through the end face of the valve core 200. Then, the nut can be screwed onto the output shaft of the motor 300 through the opening, thereby fixing the motor 300 and the valve core 200. After that, a plug 240 for sealing can be installed at the opening of the valve core 200 to ensure the sealing of the valve core 200.

[0049] like Figure 3 and Figure 4 As shown, the housing 100 is provided with a mounting edge, and there are multiple protrusions on the mounting edge. The protrusions are used to connect the housing 100 and the end 400 with bolts, which facilitates installation and maintenance.

[0050] In order to enable the various channels on the end cap 400 and the openings on the housing 100 to connect with other components, such as Figure 3 and Figure 4 As shown, the air outlet channel 110 is provided with a first connector 111, the air inlet channel 120 is provided with a second connector 121, the common end output channel 130 is provided with a third connector 131, and the atmospheric outlet 420 is provided with a fourth connector 421. By using these connectors, the device can be smoothly connected to other components, and can be quickly installed and put into operation.

[0051] 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 double-layer coaxial type, characterized in that, The device includes a housing (100) and a turbine fan (500) for pressurization. A hollow valve core (200) is installed inside the housing (100). A motor (300) for reciprocating movement of the valve core (200) is installed at one end of the housing (100), and a connecting end (400) is installed at the other end. An atmospheric inlet (410) and an atmospheric outlet (420) are provided on the end (400). The housing (100) is provided with an outlet channel (110) communicating with the inlet of the turbine fan (500) and an inlet channel (120) communicating with the outlet of the turbine fan (500), as well as a common end output channel (130) that can form positive and negative pressure inside. The outer side of the valve core (200) is connected by several fan-shaped annular partitions and a longitudinal... The valve plate forms several air exchange channels; the air exchange channels include a first air channel, a transition air channel (220) and an outlet air channel (230) arranged in sequence. The first air channel is divided into an inlet air channel (210) and an overflow air channel (211) by a longitudinal partition. The inlet air channel (210) and the outlet air channel (230) are connected to the inside of the valve core (200). The overflow air channel (211) is open at one end. The motor (300) drives the valve core (200) to move back and forth, so that the transition air channel (220) and the overflow air channel (211) are alternately connected to the inlet channel (120), so that the inlet air channel (210) and the transition air channel (220) are alternately connected to the common end output channel (130), so that the outlet air channel (230) is intermittently connected to the outlet channel (110).

2. A dual layer in-line two position five way valve as claimed in claim 1, wherein, The end (400) is provided with a shaped baffle (430) that cooperates with the valve core (200) to separate the atmospheric inlet (410) and the atmospheric outlet (420). The side of the end of the valve core (200) and the side of the shaped baffle (430) are in a sealed contact fit.

3. A dual layer in-line two position five way valve as claimed in claim 2, wherein, The valve core (200) has two longitudinal partitions at its end, which are in sealing contact with the side of the irregular baffle (430).

4. A dual layer in-line two position five way valve as claimed in claim 2, wherein, The irregular baffle (430) has a side and the inner wall of the end (400) forming a fan-shaped flow channel that communicates with the air outlet channel (110).

5. A dual layer in-line two position five way valve as claimed in claim 1, wherein, The air outlet channel (110) is provided with a first connector (111), the air inlet channel (120) is provided with a second connector (121), the common end output channel (130) is provided with a third connector (131), and the atmospheric outlet (420) is provided with a fourth connector (421).

6. A two-position five-way valve with double-layer coaxial structure according to claim 1, characterized in that, The valve core (200) has an opening at one end, and a sealing plug (240) is provided at the opening.

7. A two-position five-way valve with double-layer coaxial structure according to claim 1, characterized in that, The output shaft of the motor (300) and the end face of the valve core (200) are detachably connected by a nut.

8. A two-position five-way valve with double-layer coaxial structure according to claim 1, characterized in that, The outer casing (100) is provided with an mounting edge, which is detachably connected to the end (400) by bolts.

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