CN216430588U

CN216430588U - Switching valve

Info

Publication number: CN216430588U
Application number: CN202120544839.7U
Authority: CN
Inventors: 林孝发; 林孝山; 刘祖华; 林根远; 徐鹏
Original assignee: Xiamen Komoo Intelligent Technology Co Ltd
Current assignee: Xiamen Komoo Intelligent Technology Co Ltd
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2022-05-03
Anticipated expiration: 2031-03-16

Abstract

The utility model discloses a switching valve, which comprises a valve body and a switching piece, wherein the valve body is provided with a plurality of first structures for inputting/outputting media, the switching piece is provided with a second structure for inputting/outputting the media, the switching piece is rotatably connected to the valve body, and the second structure of the switching piece is communicated with one of the first structures through rotation; the switching piece is provided with a first sealing ring which enables the second structure to be in sealed communication with any one of the first structures when the second structure corresponds to the first structure. According to the utility model, the first sealing ring is not arranged on the valve body, so that the number of the first sealing rings can be reduced, and compared with the valve body, the first sealing ring is easier to assemble on the switching piece.

Description

Switching valve

Technical Field

The present invention relates to a valve, and more particularly, to a switching valve.

Background

Traditional diverter valve can be called as the carousel diverter valve again, and its switching principle is trompil on the carousel, by the rotatory carousel of motor drive, realizes the water route by the rotation of carousel and switches: and a plurality of flow channels are distributed on the water outlet end, when the vacant position of the turntable is rotated to the corresponding flow channel position, the flow channel is communicated, and other flow channels are closed. Because the switching valve is in face-to-face fit, the precision requirements on parts (the rotary disc and the water outlet end) are high, including flatness and smoothness, and once the surface smoothness of the parts is insufficient or abrasion occurs, water leakage of the switching valve can be caused. In order to solve the problem, a switching valve which is sealed by a sealing ring is provided in the prior art, but the switching valve is provided with the sealing ring on each flow channel of the valve body, so that the number of the sealing rings is large, and the switching valve is inconvenient to assemble.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problems in the prior art, the utility model provides the switching valve capable of reducing the number of sealing rings.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a switching valve comprises a valve body and a switching piece, wherein the valve body is provided with a plurality of first structures for inputting/outputting media, the switching piece is provided with a second structure for inputting/outputting the media, the switching piece is rotatably connected to the valve body, and the second structure of the switching piece is communicated with one of the first structures through rotation; the switching piece is provided with a first sealing ring which enables the second structure to be in sealed communication with any one of the first structures when the second structure corresponds to the first structure.

Furthermore, the valve body is also provided with a third structure for entering/exiting a medium, the medium flow direction of the third structure is opposite to the medium flow direction of the first structure, and the third structure is communicated with one of the first structures through the second structure.

Further, the switching piece is provided with a second sealing ring, and the second sealing ring enables the second structure to be in sealing communication with the third structure.

Furthermore, a convex neck part with two through ends is arranged at one end of the switching piece facing the third structure in the second structure, and the convex neck part is sleeved with the second sealing ring and inserted into the third structure.

Further, the first structure is a first circulation port or a first flow passage, and the second structure is a second circulation port or a second flow passage.

Further, the second flow channel is an L-shaped flow channel.

Further, the third structure is a third flow port or a third flow channel.

Furthermore, the valve body is provided with an arc-shaped or circular accommodating part, one ends of the first structures, which are matched with the second structures, are respectively communicated with the accommodating part, the switching piece is arranged in the accommodating part and is provided with an arc-shaped rotating surface matched with the accommodating part, one end, facing the first structure, of the second structure of the switching piece is positioned on the rotating surface, and the first sealing ring is nested in the rotating surface and surrounds one end, facing the first structure, of the second structure.

Further, the valve body is further provided with an arc-shaped limiting groove, the switching piece is provided with a limiting convex part, and the limiting convex part is matched with the limiting groove to limit the rotation angle of the switching piece.

Further, still include the motor, the switching piece is by this motor drive.

Compared with the prior art, the utility model has the following beneficial effects:

1. the first sealing ring is arranged on the switching piece, and the second structure is in sealing communication with any one of the first structures when the first sealing ring corresponds to the second structure, so that the first sealing ring is not arranged on the valve body, the number of the first sealing rings can be reduced, and the first sealing ring is easier to assemble on the switching piece compared with the valve body.

2. The valve body also comprises the third structure, so that the valve can effectively guide and reverse media by utilizing the matching of the first structure, the second structure and the third structure.

3. The switching piece is provided with the second sealing ring, so that the valve body is free from being provided with the second sealing ring, and the second sealing ring is easier to assemble.

The utility model is further explained in detail with the accompanying drawings and the embodiments; however, a switching valve of the present invention is not limited to the embodiment.

Drawings

FIG. 1 is an exploded schematic view of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a front view of the present invention;

FIG. 4 is a cross-sectional view of the present invention;

FIG. 5 is a cross-sectional view of the present invention (illustrating the direction of feed);

FIG. 6 is a cross-sectional view of the present invention in a first state;

FIG. 7 is a cross-sectional view of the present invention in a second state;

fig. 8 is a cross-sectional view of the utility model in a third state.

Detailed Description

In an embodiment, please refer to fig. 1 to 8, a switching valve of the present invention includes a valve body 1 and a switching member 2, the valve body 1 is provided with a plurality of first structures for inputting/outputting a medium, the switching member 2 is provided with a second structure for inputting/outputting a medium, the switching member 2 is rotatably connected to the valve body 1, and the switching member 2 makes the second structure communicate with one of the plurality of first structures by rotating; the switching piece 2 is provided with a first sealing ring 3 which enables the second structure to be in sealing communication with any one of the first structures when the second structure corresponds to the first structure. The inlet/outlet medium refers to an input and/or output medium, and the medium is a flowable medium, such as liquid or gas.

In this embodiment, the valve body 1 is further provided with a third structure for inputting/outputting a medium, and the medium flow direction of the third structure is opposite to the medium flow direction of the first structure, that is, when the third structure inputs a medium, the first structure outputs the medium, and conversely, when the first structure inputs the medium, the third structure outputs the medium. A third structure is in communication with one of the number of first structures through the second structure.

In this embodiment, the switching member 2 is provided with a second seal ring 4, and the second seal ring 4 seals and communicates the second structure and the third structure. Specifically, the switching member 2 has a protruding neck portion 22 with two through ends at one end of the second structure facing the third structure, and the protruding neck portion 22 is sleeved with the second seal ring 4 and inserted into the third structure. Specifically, the outer wall of the convex neck portion 22 is provided with an annular groove 23, and the second seal ring 4 is sleeved on the annular groove 23.

In this embodiment, the first structure is a first flow channel 11, the second structure is a second flow channel 21, and the second flow channel 21 is an L-shaped flow channel. The third structure is a third flow channel 12. In other embodiments, the first structure is a first port, the second structure is a second port, and the third structure is a third port. The number of the first flow passages 11 is three, but not limited thereto, and in other embodiments, the number of the first flow passages is two or more than three.

In this embodiment, the valve body 1 is provided with an arc-shaped accommodating portion 13 (the accommodating portion 13 may also be circular), the first structures (i.e., the first flow channels 11) are used for leading one ends of the first structures (i.e., the second flow channels 21) to the accommodating portion 13 respectively, the switching member 2 is mounted in the accommodating portion 13 and has an arc-shaped rotating surface 24 adapted to the accommodating portion 13, one end of the second structure (i.e., the second flow channels 21) of the switching member 2 facing the first structures is located on the rotating surface 24, and the first sealing ring 3 is nested in the rotating surface 24 and surrounds one end of the second structure facing the first structures. Specifically, the rotating surface 24 is provided with an annular groove 25, and the first seal ring 3 is sleeved in the annular groove 25.

In this embodiment, as shown in fig. 4, the valve body 1 is further provided with an arc-shaped limiting groove 14, the limiting groove 14 is communicated with the accommodating portion 13, the switching member 2 is provided with a limiting convex portion 26, the limiting convex portion 26 is long-shaped and is substantially parallel to the axis of the rotating shaft of the switching member 2, and the limiting convex portion 26 is matched with the limiting groove 14 to limit the rotating angle of the switching member 2.

In this embodiment, the present invention further includes a motor 5, and the switching member 2 is driven by the motor 5. The motor 5 is a stepping motor 5, the motor 5 is fixed on the valve body 1, and an output shaft of the motor 5 is fixedly inserted and connected with the switching piece 2.

In the switching valve of the present invention, the third flow channel 12 is used for feeding liquid, and each first flow channel 11 is used for discharging liquid, but not limited thereto, in other embodiments, the first flow channel is used for feeding liquid, and the third flow channel is used for discharging liquid.

The present invention has the following three states: in the first state, as shown in fig. 6, the switching member 2 is driven by the motor 5 to rotate downwards to make the second flow passage 21 communicate with the first flow passage, and at this time, when water enters the third flow passage 12, the water flows into the first flow passage through the second flow passage 21 and flows out from the first flow passage; in the second state, as shown in fig. 7, the switching member 2 is driven by the motor 5 to rotate downwards to make the second flow passage 21 communicate with the second first flow passage, and at this time, when water enters the third flow passage 12, the water flows into the second first flow passage through the second flow passage 21 and flows out from the second first flow passage; in the third state, as shown in fig. 8, the switching member 2 is driven by the motor 5 to rotate downwards to connect the second flow channel 21 with the third first flow channel, and at this time, when the third flow channel 12 is fed with water, the water flows into the third first flow channel through the second flow channel 21 and flows out from the third first flow channel.

According to the switching valve, the first sealing ring 3 is used for sealing, so that the requirement on the precision of the contact surface of the switching piece 2 and the valve body 1 is lowered, the service life is prolonged, the cost caused by an additional process is reduced, the sealing reliability is improved, and the possibility of water leakage is reduced. According to the utility model, the first sealing ring 3 is arranged on the switching piece 2, so that the valve body 1 is not provided with three first sealing rings 3, the number of the first sealing rings 3 can be reduced, and compared with the valve body 1, the first sealing ring 3 is easier to assemble on the switching piece 2.

The above embodiments are only used to further illustrate the switching valve of the present invention, but the present invention is not limited to the embodiments, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention fall within the protection scope of the technical solution of the present invention.

Claims

1. A switching valve comprises a valve body and a switching piece, wherein the valve body is provided with a plurality of first structures for inputting/outputting media, the switching piece is provided with a second structure for inputting/outputting the media, the switching piece is rotatably connected to the valve body, and the second structure of the switching piece is communicated with one of the first structures through rotation; the method is characterized in that: the switching piece is provided with a first sealing ring which enables the second structure to be in sealed communication with any one of the first structures when the second structure corresponds to the first structure.

2. The switching valve according to claim 1, characterized in that: the valve body is also provided with a third structure for entering/exiting a medium, the medium flow direction of the third structure is opposite to the medium flow direction of the first structure, and the third structure is communicated with one of the first structures through the second structure.

3. The switching valve according to claim 2, characterized in that: the switching piece is provided with a second sealing ring which enables the second structure to be in sealing communication with the third structure.

4. The switching valve according to claim 3, characterized in that: the switching piece is provided with a convex neck part with two through ends at one end of the second structure facing the third structure, and the convex neck part is sleeved with the second sealing ring and inserted in the third structure.

5. The switching valve according to any one of claims 1 to 4, characterized in that: the first structure is a first circulation port or a first flow passage, and the second structure is a second circulation port or a second flow passage.

6. The switching valve according to claim 5, characterized in that: the second flow channel is an L-shaped flow channel.

7. The switching valve according to any one of claims 2 to 4, characterized in that: the third structure is a third flow port or a third flow channel.

8. The switching valve according to claim 1, characterized in that: the valve body is provided with an arc-shaped or circular accommodating part, one ends of the first structures, which are matched with the second structures, are respectively communicated with the accommodating part, the switching piece is arranged in the accommodating part and is provided with an arc-shaped rotating surface matched with the accommodating part, one end, facing the first structures, of the second structures of the switching piece is positioned on the rotating surface, and the first sealing ring is nested in the rotating surface and surrounds one end, facing the first structures, of the second structures.

9. The switching valve according to claim 1 or 8, characterized in that: the valve body is further provided with an arc-shaped limiting groove, the switching piece is provided with a limiting convex part, and the limiting convex part is matched with the limiting groove to limit the rotating angle of the switching piece.

10. The switching valve according to claim 1, characterized in that: the switching piece is driven by the motor.