CN212616505U

CN212616505U - Three-way valve

Info

Publication number: CN212616505U
Application number: CN202021340930.9U
Authority: CN
Inventors: 郑建军
Original assignee: Xiamen Yibaike Sanitary Technology Co ltd
Current assignee: Xiamen Yibaike Sanitary Technology Co ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2021-02-26
Anticipated expiration: 2030-07-09

Abstract

The utility model provides a three-way valve, which comprises a valve seat and a rotating unit, wherein the valve seat is provided with a water inlet channel, two water outlet channels and a cylindrical groove with an opening, the cylindrical groove is divided into a front section and a rear section along the axial direction, the front section of the cylindrical groove is provided with a water inlet communicated with the water inlet channel, the rear section of the cylindrical groove is provided with two water outlets respectively communicated with the two water outlet channels, the rotating unit can rotate and is in sealing fit with the opening end of the cylindrical groove, and a tubular shaft extends into the cylindrical groove, the tubular shaft is provided with a first section corresponding to the front section of the cylindrical groove and a second section corresponding to the rear section of the cylindrical groove, a water inlet communication hole is formed between the first section of the tubular shaft and the front section of the cylindrical groove in a clearance mode, the second section of the tubular shaft is in sealing fit with the rear section of the cylindrical groove and is provided with a water outlet communication hole, and the rotation of the rotating unit enables the water outlet communication hole and the two water outlets to be staggered or communicated with one water outlet or simultaneously communicated with the two water outlets. The device has the characteristics of simple structure, easiness in assembly, ingenious design, easiness in implementation and the like.

Description

Three-way valve

Technical Field

The utility model relates to a valve structure field, concretely relates to three-way valve.

Background

The three-way valve is commonly used in fluid pipelines and is used as a connecting center of each pipeline, and the application range is very wide. For example, in heat pumps, water heaters, etc., an existing three-way valve generally includes a valve seat and a valve core (i.e., a rotating unit) located in the valve seat, and three ports are formed on the valve seat, one of the three ports is a water inlet, and the other two ports are water outlets, so as to form a one-inlet-two-outlet structure (of course, a two-inlet-one-outlet structure is also possible). The valve core controls on/off of the three ports. In the prior art, the valve core has many parts and is complex to assemble, such as a three-way valve disclosed in CN 108368944A; therefore, it is necessary to design a three-way valve structure with simple structure and easy implementation.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a three-way valve can effectively solve above-mentioned problem.

In order to achieve the above purpose, the utility model provides a technical scheme as follows:

a three-way valve comprises a valve seat and a rotating unit, wherein the valve seat is provided with a water inlet channel, two water outlet channels and a cylindrical groove with an opening, the cylindrical groove is divided into a front section and a rear section along the axial direction of the cylindrical groove, the front section of the cylindrical groove is provided with a water inlet communicated with the water inlet channel, the rear section of the cylindrical groove is provided with two water outlets respectively communicated with the two water outlet channels, the rear section of the cylindrical groove is fixedly sleeved with a sealing sleeve gasket, the sealing sleeve gasket is provided with two yielding ports one by one corresponding to the two water outlets, the rotating unit can rotate and be in sealing fit with the opening end of the cylindrical groove, a pipe shaft extends into the cylindrical groove, the pipe shaft is provided with a first section corresponding to the front section of the cylindrical groove and a second section corresponding to the rear section of the cylindrical groove, the first section of the pipe shaft is arranged in a gap with the front section of the cylindrical groove and is provided with a water inlet communicating hole, the second section of the pipe shaft is in, the rotation of the rotating unit enables the water outlet communication hole to be staggered with the two water outlets or communicated with one water outlet or simultaneously communicated with the two water outlets.

Furthermore, the sealing gasket also extends a limiting convex ring towards the water outlet channel, and the limiting convex ring is matched with the water outlet channel in a limiting way to realize fixed sleeve joint on the rear section of the cylindrical groove.

Furthermore, two water outlets of the cylindrical groove are arranged on the same rotating circumferential surface, and two water outlet communication holes are formed in the second section of the tubular shaft and are also distributed on the same rotating circumferential surface.

Furthermore, the rotating unit comprises a switching rotating shaft, a knob and a fixed cover, the middle position of the switching rotating shaft is in sealing fit with the opening end of the cylindrical groove through a sealing ring, the rear end part of the switching rotating shaft extending into the cylindrical groove forms the tubular shaft, the fixed cover covers the valve seat and is in interference limitation with the switching rotating shaft, and the knob is assembled on the front end part of the switching rotating shaft extending out of the fixed cover.

Furthermore, the knob is provided with a limit groove, the fixed cover is further provided with a limit convex column protruding into the limit groove of the knob, and the limit groove and the limit convex column are matched to limit the rotation range of the knob.

Furthermore, the limiting convex column of the fixed cover is also provided with an elastic convex column which protrudes out of the limiting convex column and is abutted against the knob, the knob is also concavely provided with a positioning concave part, and when the positioning concave part corresponds to the elastic convex column due to the rotation of the knob, the elastic convex column is clamped in the positioning concave part of the knob to realize positioning.

Furthermore, the number of the positioning concave parts on the knob is three, and when the elastic convex columns are respectively matched with the three positioning concave parts, the positions of the water outlet communication holes staggered with the two water outlets, the position of the water outlet communication hole communicated with one water outlet and the position of the water outlet communication hole simultaneously communicated with the two water outlets are respectively corresponded.

Through the utility model provides a technical scheme has following beneficial effect:

the three-way valve that this scheme provided simple structure, assembly are simple and easy, design benefit and easy realization have greatly simplified the structure of three-way valve, obtain fine control on the cost, and stability is good.

Drawings

FIG. 1 is a schematic perspective view of a three-way valve according to an embodiment;

FIG. 2 is an exploded view of the three-way valve according to the embodiment;

FIG. 3 is a first cross-sectional view of a three-way valve in an embodiment;

FIG. 4 is a sectional view of a three-way valve in the second embodiment;

FIG. 5 is a cross-sectional view of a three-way valve in the embodiment;

FIG. 6 is a cross-sectional view of a three-way valve in the example;

FIG. 7 is a perspective view of a valve seat in an embodiment;

FIG. 8 is a sectional view of a valve seat in the embodiment;

FIG. 9 is a perspective view of the knob in the embodiment;

fig. 10 is a schematic perspective view of the switching shaft in the embodiment.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

Referring to fig. 1 to 10, the present embodiment provides a three-way valve including: the valve comprises a valve seat 10 and a rotating unit, wherein the valve seat 10 is provided with a water inlet channel 11, two water outlet channels 12 and a cylindrical groove 101 with an opening, the cylindrical groove 101 is divided into a front section and a rear section along the axial direction, specifically, in the embodiment, the front section of the cylindrical groove 101 is close to the opening direction, and the rear section is close to the groove bottom direction. Of course, in other embodiments, the reverse may be true.

The front section of the cylindrical groove 101 is provided with a water inlet 111 communicated with the water inlet channel 11, and the rear section of the cylindrical groove 101 is provided with two water outlets 121 respectively communicated with the two water outlet channels 12, so that the positions of the water inlet 111 and the water outlets 121 are staggered. The rear section of the cylindrical groove 101 is further fixedly sleeved with a sealing sleeve gasket 50, and the sealing sleeve gasket 50 is provided with two yielding ports 51 corresponding to the two water outlets 121 one by one.

The rotating unit is rotatably and hermetically fitted to the open end of the cylindrical groove 101, and a pipe shaft 21 extends into the cylindrical groove 101, the pipe shaft 21 has a first section corresponding to the front section of the cylindrical groove 101 and a second section corresponding to the rear section of the cylindrical groove 101, and the first section of the pipe shaft 21 is spaced from the front section of the cylindrical groove 101 and is provided with a water inlet communication hole 211, as shown in fig. 6, so that the water inlet communication hole 211 of the pipe shaft 21 can always communicate with the water inlet 111 no matter how the pipe shaft 21 rotates, and water flowing from the water inlet 111 can flow into the pipe shaft 21 through the water inlet communication hole 211.

The second section of the pipe shaft 21 is in sealing fit with the sealing sleeve gasket 50 at the rear section of the cylindrical groove 101 and is provided with a water outlet communication hole 212, and the second section of the pipe shaft 21 is in sealing fit with the rear section of the cylindrical groove 101, so that the water inlet 111 and the water outlet 121 cannot be directly communicated with each other, and must be communicated through the inside of the pipe shaft 21 to be controlled.

The rotation of the rotating unit makes the water outlet communication hole 212 and the two water outlets 121 staggered or communicated with one of the water outlets 121 or simultaneously communicated with the two water outlets 121. When the rotation of the rotating unit makes the water outlet communication hole 212 staggered with the two water outlets 121, the water path is blocked, and the water path is in a disconnected state; when the rotation unit rotates to connect the water outlet communication hole 212 with one of the water outlets 121, one path of the water outlet channel 12 is conducted to discharge water, and the other path is in a state of being blocked and disconnected, which is shown in fig. 3 to 5 of the present embodiment, that is, one path of the water outlet channel 12 is conducted to discharge water, and the other path is in a state of being blocked and disconnected. When the rotation unit rotates to make the water outlet communication hole 212 simultaneously communicate with the two water outlets 121, the two water outlet channels 12 are both communicated to discharge water, so as to realize a one-inlet two-outlet water channel.

Specifically, in this embodiment, the two water outlets 121 of the cylindrical groove 101 are disposed on the same circumferential rotation surface, and the two water outlet communication holes 212 on the second section of the pipe shaft 21 are disposed and distributed on the same circumferential rotation surface. When the rotation of the rotating unit makes the water outlet communication holes 212 staggered with the two water outlets 121, the two water outlet communication holes 212 are not communicated with the water outlets 121; when the rotation of the rotating unit enables the water outlet communication holes 212 to be communicated with one of the water outlets 121, namely one of the water outlet communication holes 212 is communicated with one of the water outlets 121, and the other water outlet communication hole 212 is staggered with the other water outlet 121; when the rotation of the rotation unit enables the two water outlet communication holes 212 to be communicated with the two water outlets 121 one by one, a one-inlet and two-outlet water path is realized.

Of course, in other embodiments, the two water outlets 121 of the cylindrical groove 101 do not need to be disposed on the same circumferential surface, and the water outlet communication hole 212 on the second section of the tubular shaft 21 may be disposed with a larger aperture so as to be able to communicate with the two water outlets 121 at the same time.

Specifically, in this embodiment, the interface of the water inlet channel 11 and the interface of the water outlet channel 12 are also on the same circumferential rotation surface, and are uniform in appearance. Of course, in other embodiments, it may not be necessary to provide them on the same circumferential surface of rotation.

Specifically, in this embodiment, the second section of the spool 21 is sealingly engaged within the sealing gasket 50, and is sealingly engaged with the rear section of the cylindrical groove 101 via the sealing gasket 50. Therefore, the sealing effect is better, the water seepage, the water leakage and other abnormalities are more difficult to occur, the friction damage between the tubular shaft 21 and the sealing sleeve gasket 50 is small, and the service life is longer.

Still further, in this embodiment, the sealing sleeve gasket 50 further extends a limiting convex ring 52 into the water outlet channel 12, and the limiting convex ring 52 is in limit fit with the water outlet channel 12 to realize fixed sleeve joint at the rear section of the cylindrical groove 101, so as to prevent the sealing sleeve gasket 50 from rotating relative to the cylindrical groove 101 to cause the water outlet 121 and the abdicating opening 51 to be dislocated, and the structure is simple and stable to assemble and is easy to disassemble and replace. Of course, in other embodiments, the fixed socket structure of the boot seal 50 and the rear section of the cylindrical groove 101 is not limited thereto.

Further, in this embodiment, the rotating unit includes a switching rotating shaft 20, a knob 40 and a fixing cover 30, the middle position of the switching rotating shaft 20 is in sealing fit with the opening end of the cylindrical groove 101 through a sealing ring 60, specifically, the middle position of the switching rotating shaft 20 is provided with an annular groove 22, the sealing ring 60 is assembled in the annular groove 22 and is in sealing contact with the inner side wall of the opening end of the cylindrical groove 101, so as to achieve sealing fit.

The rear end of the switching shaft 20 extending into the cylindrical groove 101 forms the pipe shaft 21, and the fixed cover 30 covers the valve seat 10 and limits the switching shaft 20 in an abutting manner, so as to prevent the switching shaft 20 from being disengaged outwards. The knob 40 is assembled on the front end part of the switching rotating shaft 20 extending out of the fixed cover 30, and the rotation of the switching rotating shaft 20 is controlled by rotating the knob 40, so that the on-off and switching of the water path are controlled; has the characteristics of simple structure, easy assembly and the like.

Still further, in this embodiment, the knob 40 is provided with a limiting groove 41, the fixing cover 30 is further provided with a limiting convex pillar 31 protruding into the limiting groove 41 of the knob 40, the limiting groove 41 and the limiting convex pillar 31 are matched to limit the rotation range of the knob 40, so as to limit the rotation range of the knob 40, reduce useless operations, and enable the operations to be more accurate and definite.

Still further, in this embodiment, the limiting convex column 31 of the fixing cover 30 is further provided with an elastic convex column 70, specifically, the limiting convex column 31 is provided with an accommodating groove (not shown), the elastic convex column 70 specifically includes a spring 71 and a convex column 72, the spring 71 and the convex column 72 are disposed in the accommodating groove of the elastic convex column 31, and the spring 71 applies an outward elastic force to the convex column 72 to enable the convex column 72 to protrude out of the limiting convex column 31 in a natural state, the elastic convex column 70 protrudes out of the limiting convex column 31 and abuts against the knob 40, the knob 40 is further provided with a positioning concave portion 42 in a recessed manner, when the knob 40 rotates to enable the positioning concave portion 42 to correspond to the elastic convex column 70, the elastic convex column 70 is clamped in the positioning concave portion 42 of the knob 40 to achieve positioning, and the operation is more accurate.

More specifically, in this embodiment, three positioning concave portions 42 are provided on the knob 40, and when the elastic protruding pillar 70 is respectively matched with the three positioning concave portions 42, the positions of the water outlet communication holes 212 staggered from the two water outlets 121, the position of the water outlet communication hole 212 communicating with one of the water outlets 121, and the position of the water outlet communication hole 212 simultaneously communicating with the two water outlets 121 are respectively corresponded. All carry out accurate location to three position, the operator uses more convenient, swift.

Of course, in other embodiments, limiting, positioning, etc. the rotation of the knob 40 may not be required.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A three-way valve comprises a valve seat and a rotating unit, wherein the valve seat is provided with a water inlet channel, two water outlet channels and a cylindrical groove with an opening, and the three-way valve is characterized in that: the cylindrical groove is divided into a front section and a rear section along the axial direction, the front section of the cylindrical groove is provided with a water inlet communicated with the water inlet channel, the rear section of the cylindrical groove is provided with two water outlets respectively communicated with the two water outlet channels, the rear section of the cylindrical groove is also fixedly sleeved with a sealing sleeve gasket, the sealing sleeve gasket is provided with two yielding ports which correspond to the two water outlets one by one, the rotating unit can rotate and is in sealing fit with the opening end of the cylindrical groove, and a pipe shaft is extended into the cylindrical groove, the pipe shaft is provided with a first section corresponding to the front section of the cylindrical groove and a second section corresponding to the rear section of the cylindrical groove, the first section of the tubular shaft and the front section of the cylindrical groove are arranged in a clearance way and are provided with water inlet communication holes, the second section of the tubular shaft and the sealing gasket at the rear section of the cylindrical groove are in sealing fit and are provided with water outlet communication holes, the rotation of the rotating unit enables the water outlet communication hole to be staggered with the two water outlets or communicated with one water outlet or simultaneously communicated with the two water outlets.

2. A three-way valve according to claim 1, characterized in that: the sealing gasket also extends a limiting convex ring towards the water outlet channel, and the limiting convex ring is matched with the water outlet channel in a limiting way to realize the fixed sleeve joint on the rear section of the cylindrical groove.

3. A three-way valve according to claim 1, characterized in that: two water outlets of the cylindrical groove are arranged on the same rotating circumferential surface, and two water outlet communication holes are formed in the second section of the tubular shaft and are also distributed on the same rotating circumferential surface.

4. A three-way valve according to claim 1, characterized in that: the rotating unit comprises a switching rotating shaft, a knob and a fixed cover, the middle position of the switching rotating shaft is in sealing fit with the opening end of the cylindrical groove through a sealing ring, the rear end part of the switching rotating shaft extending into the cylindrical groove forms the tubular shaft, the fixed cover covers the valve seat and limits the switching rotating shaft in an abutting mode, and the knob is assembled on the front end part of the switching rotating shaft extending out of the fixed cover.

5. A three-way valve according to claim 4, characterized in that: the knob is provided with a limiting groove, the fixing cover is further provided with a limiting convex column protruding into the limiting groove of the knob, and the limiting groove is matched with the limiting convex column to limit the rotation range of the knob.

6. A three-way valve according to claim 5, characterized in that: the knob is characterized in that an elastic convex column is further arranged on the limiting convex column of the fixed cover, the elastic convex column protrudes out of the limiting convex column and abuts against the knob, a positioning concave part is further arranged on the knob in a concave mode, and when the positioning concave part corresponds to the elastic convex column due to rotation of the knob, the elastic convex column is clamped in the positioning concave part of the knob to achieve positioning.

7. A three-way valve according to claim 6, characterized in that: the knob is provided with three positioning concave parts, and when the elastic convex columns are respectively matched with the three positioning concave parts, the positions of the water outlet communication holes staggered with the two water outlets, the position of the water outlet communication hole communicated with one water outlet and the position of the water outlet communication hole simultaneously communicated with the two water outlets are respectively corresponded.