Three-way valve

Abstract

The utility model discloses a three-way valve, which belongs to the field of valves and comprises a valve body provided with an inlet, a first outlet and a second outlet which are communicated with one another. The valve element is rotationally connected into the valve body, the valve element is provided with a line-shaped flow channel and a penetrating cavity, and the line-shaped flow channel is communicated between the inlet and the first outlet, or the line-shaped flow channel is communicated between the inlet and the second outlet. A first distance between the inner wall of the straight runner and the inner side of the penetrating cavity is smaller than a second distance between the outer side of the penetrating cavity and the outer side of the valve element. The utility model has the technical effects that the valve core is not easy to accumulate abnormal materials, and the switching performance of the valve core is good.

Description

Technical Field

[0001] The utility model relates to a valve, in particular to a three-way valve. Background Art

[0002] A three-way valve is a valve with three openings, which is divided into a confluence valve and a diversion valve according to the fluid action mode. The confluence valve has two inlets and flows out from one outlet after confluence. The diversion valve has one inlet and flows out from two outlets after diversion.

[0003] The valve core is an important part of the three-way valve. However, abnormal materials are likely to accumulate in the valve core of the related three-way valve. During switching, the abnormal materials are easily discharged into the production system, resulting in poor product performance. Moreover, during operation, due to the impact of the materials, the valve core of the related three-way valve is easily in close contact with the valve body, resulting in poor switching performance of the valve core of the related three-way valve. Summary of the Utility Model

[0004] Purpose of the utility model: The purpose of the utility model is to provide a three-way valve, in which abnormal materials are not likely to accumulate in the valve core, and the switching performance of the valve core is good.

[0005] Technical solution: A three-way valve, comprising:

[0006] A valve body, which is provided with an inlet, a first outlet and a second outlet that are communicated with each other;

[0007] A valve core rotatably connected in the valve body, the valve core is provided with a straight flow channel and a through cavity, the straight flow channel is communicated between the inlet and the first outlet, or the straight flow channel is communicated between the inlet and the second outlet.

[0008] Optionally, a first distance between the inner wall of the straight flow channel and the inner side of the through cavity is less than a second distance between the outer side of the through cavity and the outer side of the valve core.

[0009] Optionally, the cross-sectional shape of the through cavity is an umbrella shape.

[0010] Optionally, the valve core comprises:

[0011] A main body portion rotatably connected in the valve body, the straight flow channel and the through cavity are both arranged in the main body portion;

[0012] A first rotating shaft connected to one end of the main body portion, the first rotating shaft is rotatably connected to the valve body.

[0013] Optionally, the valve core further comprises a second rotating shaft connected to the other end of the main body portion, the second rotating shaft is integrally formed and connected with the first rotating shaft, and the second rotating shaft is rotatably connected to the valve body.

[0014] Optionally, the valve core further includes two flat portions respectively disposed at two ends of the main body portion, and the two flat portions are both rotatably connected to the valve body.

[0015] Optionally, the valve body includes:

[0016] A main body portion, where the inlet, the first outlet, and the second outlet are all disposed on the main body portion;

[0017] A cover body detachably connected to the main body portion;

[0018] Wherein, the valve core is rotatably connected within the main body portion and the cover body.

[0019] Optionally, the valve body further includes a plurality of mounting holes disposed on the cover body.

[0020] Advantageous effects:

[0021] 1) The one-way flow channel is used for flowing materials. Since the one-way flow channel has only one material inlet and one material outlet, it is convenient to prevent abnormal material accumulation. During switching, it prevents abnormal materials from being discharged into the production system, thereby preventing the performance of the product from deteriorating;

[0022] 2) The through cavity does not participate in the flow of materials and is used to reduce the mass of the valve core, thereby reducing the mass of the three-way valve of the present application. Moreover, during production, the materials impact the valve core, and the through cavity is used to buffer the impact to a certain extent, thereby reducing the impact on the valve core, and further preventing the valve core and the valve body from coming into overly close contact. Finally, the switching performance of the valve core of the three-way valve of the present application is good. Description of the drawings

[0023] Figure 1 An exploded view of a three-way valve according to Embodiment 1 of the present invention;

[0024] Figure 2 A first cross-sectional view of a three-way valve according to Embodiment 1 of the present invention;

[0025] Figure 3 A second cross-sectional view of a three-way valve according to Embodiment 1 of the present invention;

[0026] Figure 4 A structural schematic diagram of the valve core according to Embodiment 1 of the present invention;

[0027] In the figure: 1, valve body; 11, main body portion; 111, first outlet; 112, second outlet; 113, inlet; 12, cover body; 121, mounting hole; 2, valve core; 21, first rotating shaft; 22, second rotating shaft; 23, main body portion; 231, one-way flow channel; 232, through cavity; 24, flat portion; 3, driver. Detailed implementation manners

[0028] To make the technical solution of the present utility model clearer, the following further describes the present utility model in detail with reference to the accompanying drawings and specific embodiments.

[0029] Embodiment 1

[0030] As Figures 1-4 , this embodiment provides a three-way valve, including: a valve body 1, the valve body 1 is provided with a mutually connected inlet 113, a first outlet 111, and a second outlet 112; a valve core 2 rotatably connected within the valve body 1, the valve core 2 is provided with a linear flow channel 231 and a through cavity 232, the linear flow channel 231 is connected between the inlet 113 and the first outlet 111, or the linear flow channel 231 is connected between the inlet 113 and the second outlet 112.

[0031] Specifically, the valve body 1 is used to carry the inlet 113, the first outlet 111, and the second outlet 112; the inlet 113 facilitates the entry of materials into the valve body 1 and the valve core 2; the first outlet 111 is used as a production discharge port to facilitate the outflow of production materials from the valve body 1 and the valve core 2; the second outlet 112 is used as a bypass discharge port to facilitate the outflow of abnormal materials from the valve body 1 and the valve core 2; the valve core 2 is used to control the flow direction of materials. When the linear flow channel 231 is connected between the inlet 113 and the first outlet 111, it facilitates the flow of production materials. When the linear flow channel 231 is connected between the inlet 113 and the second outlet 112, it facilitates the flow of abnormal materials. Among them, the valve core 2 can be specifically driven by a driver 3 such as a pneumatic rotary motor; the linear flow channel 231 is used for the flow of materials. Since the linear flow channel 231 has only one inlet and one outlet, it is convenient to prevent the accumulation of abnormal materials and prevent the discharge of abnormal materials into the production system during switching, thereby preventing the deterioration of product performance; the through cavity 232 does not participate in the flow of materials and is used to reduce the mass of the valve core 2, thereby reducing the mass of the three-way valve of the present application. Moreover, during production, the materials impact the valve core 2, and the through cavity 232 is used to buffer the impact to a certain extent, thereby reducing the impact on the valve core 2, and further preventing the valve core 2 and the valve body 1 from being in overly close contact, and finally enabling the switching performance of the valve core 2 of the three-way valve of the present application to be good.

[0032] During non-production, the valve core 2 rotates to the second outlet 112, such that the one-way flow channel 231 communicates between the inlet 113 and the second outlet 112; when production starts and until all production data reaches the set values and stabilizes, a production instruction is sent to the driver 3, causing the valve core 2 to rotate to the first outlet 111, such that the one-way flow channel 231 communicates between the inlet 113 and the first outlet 111. The indicating needle on the driver 3 synchronously points to the first outlet 111, and the production material enters the subsequent production system; when an abnormality occurs or a shutdown for inspection is required, a bypass instruction is sent to the driver 3, causing the valve core 2 to rotate back to the second outlet 112. The abnormal material flows out from the second outlet 112, does not enter the production system, and does not contaminate the production material in the production system.

[0033] Further, as Figures 2-3 , the first distance between the inner wall of the one-way flow channel 231 and the inner side of the through cavity 232 is less than the second distance between the outer side of the through cavity 232 and the outer side of the valve core 2. Specifically, the first distance is relatively small and the second distance is relatively large, facilitating easier deformation between the inner wall of the one-way flow channel 231 and the through cavity 232, thereby further facilitating a certain buffering effect of the through cavity 232 on impacts, reducing the impact on the valve core 2, preventing the valve core 2 and the valve body 1 from coming into overly close contact, and ultimately enabling good switching performance of the valve core 2 of the three-way valve in this application.

[0034] Further, as Figures 2-3 , the cross-sectional shape of the through cavity 232 is umbrella-shaped. Specifically, the umbrella shape facilitates making the outer shape of the through cavity 232 consistent with the outer shape of the valve core 2, thereby facilitating the second distance between the outer side of the through cavity 232 and the outer side of the valve core 2 to be substantially equal everywhere, and thus facilitating good force uniformity on the outer side of the valve core 2.

[0035] Further, as Figure 4 , the valve core 2 includes: a main body portion 23 rotatably connected within the valve body 1, and the one-way flow channel 231 and the through cavity 232 are both provided within the main body portion 23; a first rotating shaft 21 connected to one end of the main body portion 23, and the first rotating shaft 21 is rotatably connected to the valve body 1. Specifically, the main body portion 23 is used to carry the one-way flow channel 231, the through cavity 232, etc.; the first rotating shaft 21 is used to connect to the drive shaft of a driver 3 such as a pneumatic rotary motor, and the drive shaft of the driver 3 drives the first rotating shaft 21 and the main body portion 23 to rotate in sequence.

[0036] Further, as Figure 4, the valve core 2 further includes a second rotating shaft 22 connected to the other end of the main body portion 23. The second rotating shaft 22 and the first rotating shaft 21 are integrally formed and connected, and the second rotating shaft 22 is rotatably connected to the valve body 1. Specifically, the first rotating shaft 21, the main body portion 23, and the second rotating shaft 22 facilitate the realization of multi-point rotational connection between the valve core 2 and the valve body 1, thereby facilitating the increase of the rotational stability of the valve core 2; since the second rotating shaft 22 and the first rotating shaft 21 are integrally formed and connected, it is convenient for the first rotating shaft 21 and the second rotating shaft 22 to be jointly configured as an integral rotating shaft, and the integral rotating shaft penetrates through the main body portion 23 and extends out of the main body portion 23.

[0037] Further, as Figure 4 , the valve core 2 further includes two planar portions 24 respectively provided at both ends of the main body portion 23, and both of the two planar portions 24 are rotatably connected to the valve body 1. Specifically, the two planar portions 24 facilitate the valve core 2 not being a complete sphere, thereby facilitating the reduction of the mass of the valve core 2.

[0038] Further, as Figure 1 , the valve body 1 includes: a main body portion 11, an inlet 113, a first outlet 111, and a second outlet 112 are all provided on the main body portion 11; a cover body 12 detachably connected to the main body portion 11; wherein, the valve core 2 is rotatably connected within the main body portion 11 and the cover body 12. Specifically, the main body portion 11 is used to carry the inlet 113, the first outlet 111, the second outlet 112, etc.; the cover body 12 is used to cooperate with the main body portion 11 so as to completely wrap the valve core 2.

[0039] Further, as Figure 1 , the valve body 1 further includes a plurality of mounting holes 121 provided on the cover body 12. Specifically, the plurality of mounting holes 121 facilitate the installation of the cover body 12 on a relevant installation body, thereby facilitating the installation of the three-way valve of the present application on a relevant installation body.

[0040] The above embodiments only express several implementation manners of the present utility model, and their descriptions are relatively specific and detailed, but should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.

Claims

1. A three-way valve, characterized in that: include: A valve body, wherein the valve body is provided with an inlet, a first outlet and a second outlet which are interconnected; A valve core is rotatably connected to the valve body, and the valve core is provided with an in-line flow channel and a through cavity, wherein the in-line flow channel is connected between the inlet and the first outlet, or the in-line flow channel is connected between the inlet and the second outlet.

2. A three-way valve according to claim 1, characterized in that: A first distance between an inner wall of the in-line flow channel and an inner side of the through cavity is smaller than a second distance between an outer side of the through cavity and an outer side of the valve core.

3. A three-way valve according to claim 2, characterized in that: The cross-section shape of the through cavity is an umbrella shape.

4. A three-way valve according to any one of claims 1 to 3, characterized in that: The valve core comprises: A main body portion rotatably connected to the valve body, wherein the straight-line flow channel and the through cavity are both arranged in the main body portion; A first rotating shaft is connected to one end of the main body, and the first rotating shaft is rotatably connected to the valve body.

5. A three-way valve according to claim 4, characterized in that: The valve core also includes a second rotating shaft connected to the other end of the main body, the second rotating shaft is integrally connected with the first rotating shaft, and the second rotating shaft is rotatably connected with the valve body.

6. A three-way valve according to claim 4, characterized in that: The valve core also includes two planar portions respectively arranged at two ends of the main body portion, and the two planar portions are both rotatably connected to the valve body.

7. A three-way valve according to any one of claims 1 to 3, characterized in that: The valve body comprises: A main body, wherein the inlet, the first outlet and the second outlet are all arranged on the main body; A cover body detachably connected to the main body; Wherein, the valve core is rotatably connected to the main body and the cover body.

8. A three-way valve according to claim 7, characterized in that: The valve body also includes a plurality of mounting holes arranged on the cover body.

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