Novel electric control three-way valve device

Abstract

The utility model discloses a novel electric control three-way valve device which comprises a three-way valve body, a driving piece, a diaphragm and an electromagnetic valve, the electromagnetic valve and the driving piece are arranged on the three-way valve body, the diaphragm is arranged in the three-way valve body, the driving piece drives the diaphragm to move axially, and the electromagnetic valve is connected with the driving piece. Through the arrangement of the electromagnetic valve and the driving piece, the membrane can be driven to move in the three-way valve body, so that the membrane moves to the first position to block the first air inlet or moves to the second position to block the second air inlet, air can continuously enter the first air inlet and the second air inlet in the membrane switching process, and the fan does not need to stop working; the fan can be kept in an operation state in an optimal state, mechanical impact and abrasion caused by frequent start and stop of the fan are avoided, the service life of the fan is effectively prolonged, and maintenance and operation are convenient, simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of three-way valves, in particular to a novel electric-controlled three-way valve device. Background Art

[0002] Generally, the room is set as a closed or nearly closed environment; the air quality in the room is relatively poor. In order to improve the air in the room, a ventilation duct is usually installed in the room, a fan is arranged in the ventilation duct, a three-way valve is arranged at the air inlet at one end of the fan, and the two air inlets of the three-way valve are connected to the outdoors and the central filter.

[0003] Then, when the three-way valve in the prior art switches the air inlet, the fan needs to be started and stopped frequently, which makes the fan susceptible to mechanical shock and wear, and cannot ensure that the fan can maintain an optimal operating state. Utility Model Content

[0004] The purpose of the utility model is to provide a novel electrically controlled three-way valve device for solving the above technical problems.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A novel electrically controlled three-way valve device comprises a three-way valve body, a driving member, a diaphragm and a solenoid valve. The solenoid valve and the driving member are arranged on the three-way valve body. A diaphragm is arranged inside the three-way valve body. The driving member drives the diaphragm to move axially. The solenoid valve is connected to the driving member.

[0007] Preferably, the three-way valve body comprises an upper valve body and a lower valve body, the lower valve body is arranged at the lower end of the upper valve body and is connected to the upper valve body, and the inner diameter of the lower valve body is smaller than the inner diameter of the upper valve body.

[0008] As a further preference, the upper valve body has a first air inlet and an air outlet, and the air outlet is connected to the fan.

[0009] As a further preference, the lower valve body is provided with a second air inlet, and the lower end of the lower valve body is provided with the driving member and the solenoid valve.

[0010] As a further preference, a filter is further included, and the second air inlet is connected to the filter.

[0011] As a further preference, the diaphragm is arranged in the upper valve body, and the diameter of the diaphragm is smaller than the inner diameter of the upper valve body, and the diameter of the diaphragm is larger than the inner diameter of the lower valve body.

[0012] As a further preference, the diameter of the diaphragm is greater than the diameter of the first air inlet.

[0013] Preferably, the driving member is a pneumatic cylinder, an electric cylinder or an oil cylinder.

[0014] The above technical solution has the following advantages or beneficial effects:

[0015] When the diaphragm is in the air, it moves to the second position so that the air inlet is blocked and the fan is under a check valve in the event of a fire, the fan will stop working and the fan will not stop working. This can effectively extend the service life of the fan and make it easier for the fan to be operated. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a new type of electric-controlled three-way valve device in the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of a new type of electric-controlled three-way valve device in the utility model.

[0018] In the figure: 1. three-way valve body; 2. drive member; 3. diaphragm; 4. solenoid valve; 5. upper valve body; 6. lower valve body; 7. first air inlet; 8. air outlet; 9. second air inlet; 10. first position; 11. second position; 12. filter. DETAILED DESCRIPTION

[0019] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Figure 1 It is a structural schematic diagram of a new type of electric-controlled three-way valve device in the utility model; Figure 2 This is a schematic diagram of the internal structure of the new type of electric three-way valve device in the utility model. Figure 1 to Figure 2 , shows a preferred embodiment, showing a new type of electric-controlled three-way valve device, including a three-way valve body 1, a driving member 2, a diaphragm 3 and a solenoid valve 4. The three-way valve body 1 is provided with a solenoid valve 4 and a driving member 2. The interior of the three-way valve body 1 is provided with a diaphragm 3. The driving member 2 drives the diaphragm 3 to move axially. The solenoid valve 4 is connected to the driving member 2. In this embodiment, see Figure 2 As shown, the solenoid valve 4 is connected to an external controller, which is a common structure on the market, wherein a control signal is sent to the solenoid valve 4 through the controller, and the control signal is a control signal of the driving member 2, which can control the driving member 2 to drive the diaphragm 3 to move to the first position 10 or the second position 11, thereby closing the first air inlet 7 or the second air inlet 9 of the three-way valve, wherein, during the reciprocating movement of the diaphragm 3 between the first air inlet 7 and the second air inlet 9, the first air inlet 7 and the second air inlet 9 can continuously intake air, so that the fan does not need to stop working, which can ensure that the fan can maintain an optimal operating state, avoid mechanical shock and wear on the fan caused by frequent start and stop, and extend the service life of the fan.

[0023] Further, as a preferred embodiment, the three-way valve body 1 includes an upper valve body 5 and a lower valve body 6. The lower valve body 6 is arranged at the lower end of the upper valve body 5 and communicated with the upper valve body 5. The inner diameter of the lower valve body 6 is smaller than the inner diameter of the upper valve body 5. The upper valve body 5 and the lower valve body 6 are detachably connected to facilitate installation or disassembly and cleaning, and a sealing ring can be provided between the upper valve body 5 and the lower valve body 6 to improve the sealing performance. A first air inlet 7 is provided at the upper end of the upper valve body 5, and an air outlet 8 is provided on one side of the upper valve body 5. The first air inlet 7 is used to connect to the filter barrel of the external central filter 12, and the air outlet 8 is used to communicate with the air inlet of the fan. When the fan is working, the gas filtered by the central filter 12 can be blown into the room.

[0024] Further, as a preferred embodiment, the lower valve body 6 has a second air inlet 9, and the lower end of the lower valve body 6 is provided with a driving member 2 and a solenoid valve 4. Figure 2 As shown, a second air inlet 9 is provided on one side of the lower valve body 6. The second air inlet 9 is used to be connected to a filter 12 for connecting to the outside air. The filter 12 provided is a common structure on the market, which is used to filter impurities in the air to prevent impurities in the air from entering the fan and improve the service life of the fan. The driving member 2 is used to drive the diaphragm 3 to move along the axial direction of the upper valve body 5 in the upper valve body 5, so that the diaphragm 3 enters the first position 10 to block the first air inlet 7 or enters the second position 11 to block the position between the upper valve body 5 and the lower valve body 6, so that the air entering the second air inlet 9 cannot enter the fan.

[0025] Further, as a preferred embodiment, the diaphragm 3 is disposed in the upper valve body 5, and the diameter of the diaphragm 3 is smaller than the inner diameter of the upper valve body 5, and the diameter of the diaphragm 3 is larger than the inner diameter of the lower valve body 6. The diameter of the diaphragm 3 is larger than the diameter of the first air inlet 7. Figure 2 As shown, since the diameter of the diaphragm 3 is smaller than the inner diameter of the upper valve body 5, during the process of the diaphragm 3 moving from the first position 10 to the second position 11, both the first air inlet 7 and the second air inlet 9 can continuously inlet air. When the diaphragm 3 moves to the second position 11, the second air inlet 9 cannot inlet air at this time, while the first air inlet 7 continues to inlet air. When the diaphragm 3 moves from the second position 11 to the first position 10, the second air inlet 9 and the first air inlet 7 continue to inlet air. When the diaphragm 3 moves to the first position 10, the first air inlet 7 is closed and no longer inlets air, while the second air inlet 9 continues to inlet air. During the process of the diaphragm 3 switching between the first air inlet 7 and the second air inlet 9, both the first air inlet 7 and the second air inlet 9 continue to inlet air, and the fan does not need to stop working.

[0026] Further, as a preferred embodiment, the driving member 2 is a cylinder, an electric cylinder or an oil cylinder. The driving member 2 in this embodiment is preferably a cylinder, which can be rotated as needed.

[0027] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A new type of electrically controlled three-way valve device, characterized in that: It comprises a three-way valve body, a driving member, a diaphragm and a solenoid valve. The solenoid valve and the driving member are arranged on the three-way valve body. A diaphragm is arranged inside the three-way valve body. The driving member drives the diaphragm to move axially. The solenoid valve is connected to the driving member.

2. The novel electrically controlled three-way valve device according to claim 1 is characterized in that: The three-way valve body comprises an upper valve body and a lower valve body, wherein the lower valve body is arranged at the lower end of the upper valve body and communicated with the upper valve body, and the inner diameter of the lower valve body is smaller than the inner diameter of the upper valve body.

3. The novel electrically controlled three-way valve device according to claim 2 is characterized in that: The upper valve body has a first air inlet and an air outlet, and the air outlet is communicated with the fan.

4. The novel electrically controlled three-way valve device according to claim 3 is characterized in that: The lower valve body is provided with a second air inlet, and the lower end of the lower valve body is provided with the driving member and the solenoid valve.

5. The novel electrically controlled three-way valve device according to claim 4 is characterized in that: A filter is also included, and the second air inlet is connected to the filter.

6. The novel electrically controlled three-way valve device according to claim 2, characterized in that: The diaphragm is arranged in the upper valve body, and the diameter of the diaphragm is smaller than the inner diameter of the upper valve body, and the diameter of the diaphragm is larger than the inner diameter of the lower valve body.

7. The novel electrically controlled three-way valve device according to claim 3 is characterized in that: The diameter of the diaphragm is greater than the diameter of the first air inlet.

8. The novel electrically controlled three-way valve device according to claim 1 is characterized in that: The driving member is a pneumatic cylinder, an electric cylinder or an oil cylinder.

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