CN219492738U

CN219492738U - Shuttle valve

Info

Publication number: CN219492738U
Application number: CN202320337905.2U
Authority: CN
Inventors: 郏再德
Original assignee: Ningbo Junjia Heavy Duty Machine Manufacturing Co ltd
Current assignee: Ningbo Junjia Heavy Duty Machine Manufacturing Co ltd
Priority date: 2023-02-28
Filing date: 2023-02-28
Publication date: 2023-08-08
Anticipated expiration: 2033-02-28

Abstract

The application discloses a shuttle valve, which comprises a valve body, wherein a first valve inlet channel, a second valve inlet channel, a first valve outlet channel and a second valve outlet channel which are communicated are arranged in the valve body, an inner cavity is formed in the centers of the first valve inlet channel, the second valve inlet channel, the first valve outlet channel and the second valve outlet channel, and a valve core is arranged in the inner cavity; the first inlet valve channel and the second inlet valve channel are suitable for respectively introducing media in opposite directions, when the first inlet valve channel or the second inlet valve channel is used for introducing media, the media are suitable for driving the valve core to close the other inlet valve channel, and the first outlet valve channel and the second outlet valve channel are suitable for simultaneously discharging the media. Compared with the prior art, the shuttle valve can meet more use requirements, and users can use the shuttle valve more conveniently.

Description

Shuttle valve

Technical Field

The application relates to the technical field of valves, in particular to a shuttle valve.

Background

Shuttle valves are a type of valve that allows fluid to flow therethrough from one of two fluid sources, and are therefore commonly used in pneumatic and hydraulic systems.

In the prior art, shuttle valves all have a valve body with a first inlet, a second inlet and an outlet, and the shuttle valve further includes a spool configured to move freely within the valve body. When pressure from the fluid is applied through a particular inlet, the pressure urges the spool toward the opposite inlet. This movement may block the opposite inlet while allowing fluid to flow out of the particular opening. In this way, two different fluid sources may provide pressurized fluid to the outlet without backflow from one source to the other.

However, the existing shuttle valve has the following drawbacks: the valve body is generally provided with only one outlet, so that the application range is limited, and the valve is inconvenient.

Disclosure of Invention

The purpose of this application is to provide a wide application scope, convenient to use's shuttle valve.

In order to achieve the above purpose, the technical scheme adopted in the application is as follows: the shuttle valve comprises a valve body, wherein a first valve inlet channel, a second valve inlet channel, a first valve outlet channel and a second valve outlet channel which are communicated are arranged in the valve body, an inner cavity is formed in the centers of the first valve inlet channel, the second valve inlet channel, the first valve outlet channel and the second valve outlet channel, and a valve core is arranged in the inner cavity;

the first inlet valve channel and the second inlet valve channel are suitable for respectively introducing media in opposite directions, when the first inlet valve channel or the second inlet valve channel is used for introducing media, the media are suitable for driving the valve core to close the other inlet valve channel, and the first outlet valve channel and the second outlet valve channel are suitable for simultaneously discharging the media.

Preferably, the first outlet valve passage is provided with a detachable sealing structure, and when the sealing structure is installed on the first outlet valve passage, the medium entering the inner cavity is suitable for being discharged from the second outlet valve passage.

As another preferable aspect, the closing structure is a screw plug, and the top end of the first valve outlet channel is provided with an internal thread, so that the first valve outlet channel is suitable for being in threaded connection with the screw plug.

Further preferably, the left and right ends of the inner cavity are respectively connected with the first valve inlet channel and the second valve inlet channel, the valve core is suitable for blocking the first valve inlet channel and the second valve inlet channel, and when the first valve inlet channel or the second valve inlet channel is filled with a medium, the medium is suitable for driving the valve core to transversely move in the inner cavity and prop against a crossing of the other valve inlet channel.

Further preferably, the length of the inner cavity is greater than the length of the valve core, and the width of the inner cavity is greater than or equal to the width of the valve core.

Further preferably, the valve core is in a sphere structure, and the diameter of the valve core is larger than the diameters of the crossing of the first valve inlet channel and the second valve inlet channel.

Further preferably, the connection part of the inner cavity and the first valve inlet channel and the second valve inlet channel is an arc surface structure, and the end part of the arc surface structure is tangent to the valve core.

Further preferably, the first valve inlet channel, the second valve inlet channel, the first valve outlet channel and the second valve outlet channel are distributed in a cross structure, the first valve inlet channel and the second valve inlet channel are arranged at the left end and the right end of the inner cavity, and the first valve outlet channel and the second valve outlet channel are arranged at the upper end and the lower end of the inner cavity.

Further preferably, the shuttle valve further comprises a first valve seat and a first flange, a first channel and a second channel which are communicated are arranged between the first valve seat and the first flange, so that the first valve inlet channel is formed, and a third channel and a fourth channel are respectively arranged at the upper end and the lower end of the valve body, so that the first valve outlet channel and the second valve outlet channel are formed.

Further preferably, the shuttle valve further comprises a second valve seat and a second flange, wherein a fifth channel and a sixth channel which are communicated and perpendicular to each other are arranged between the second valve seat and the valve body, so that the second valve inlet channel is formed, and the second flange is suitable for being fixedly installed at the side end of the valve body.

Compared with the prior art, the beneficial effect of this application lies in:

this application has adopted and has set up first valve way, second valve way, first valve way and second valve way that go out in the valve body to, first valve way and second valve way that advance are suitable for respectively carrying out the medium that lets in of opposite direction, and first valve way and second valve way are suitable for simultaneously discharging the medium, therefore, compare prior art, the shuttle valve of this application can satisfy more user demands, and the user uses more conveniently.

Drawings

FIG. 1 is a schematic diagram of a shuttle valve according to the present application;

FIG. 2 is a cross-sectional view of the shuttle valve of the present application with a first inlet passage inlet;

fig. 3 is a cross-sectional view of the shuttle valve of the present application as it enters the second inlet passage.

In the figure: 1. a valve body; 11. a first valve inlet passage; 12. a second valve inlet passage; 13. a first valve outlet passage; 14. a second valve outlet channel; 15. an inner cavity; 16. a third channel; 17. a fourth channel; 18. a sixth channel; 2. a valve core; 3. a screw plug; 4. a first valve seat; 41. a second channel; 5. a second valve seat; 51. a fifth channel; 6. a first flange; 61. a first channel; 7. and a second flange.

Detailed Description

The present application will be further described with reference to the specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.

In the description of the present application, it should be noted that, for the azimuth terms such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present application and simplifying the description, and it is not to be construed as limiting the specific protection scope of the present application that the device or element referred to must have a specific azimuth configuration and operation, as indicated or implied.

It should be noted that the terms "first," "second," and the like in the description and in the claims of the present application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

The terms "comprises" and "comprising," along with any variations thereof, in the description and claims of the present application are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus.

In the prior art, the shuttle valves all have a valve body 1, the valve body 1 is generally provided with three openings of a first inlet, a second inlet and an outlet, and the shuttle valve further comprises a valve core 2 configured to freely move within the valve body 1. When pressure from the fluid is applied through a particular inlet, the pressure urges the spool 2 toward the opposite inlet. This movement may block the opposite inlet and at the same time allow fluid to flow out of a particular opening. In this way, two different fluid sources may provide pressurized fluid to the outlet without backflow from one source to the other. Therefore, in the prior art, only one outlet is generally provided on the valve body 1, so that the application range of the shuttle valve is limited, and the shuttle valve is inconvenient.

Accordingly, the inventors of the present application have made improvements over the prior art, as shown in FIGS. 1-3, the preferred embodiments of the present application are:

the shuttle valve comprises a valve body 1, wherein a first inlet valve channel 11, a second inlet valve channel 12, a first outlet valve channel 13 and a second outlet valve channel 14 which are communicated are arranged in the valve body 1, an inner cavity 15 is formed in the centers of the first inlet valve channel 11, the second inlet valve channel 12, the first outlet valve channel 13 and the second outlet valve channel 14, and a valve core 2 is arranged in the inner cavity 15;

the first inlet valve channel 11 and the second inlet valve channel 12 are suitable for respectively introducing media in opposite directions, when the first inlet valve channel 11 or the second inlet valve channel 12 is used for introducing media, the media are suitable for driving the valve core 2 to close the other inlet valve channel, and the first outlet valve channel 13 and the second outlet valve channel 14 are suitable for simultaneously discharging the media.

Compared with the prior art, the valve body 1 in the application is provided with the first valve outlet channel 13 and the second valve outlet channel 14, and the first valve outlet channel 13 and the second valve outlet channel 14 can discharge media simultaneously, so that when certain specific devices are required to be connected or certain specific works are required to be carried out, the shuttle valve can realize better adaptation without changing, and therefore, the valve has the advantages of wider application range and more convenient use.

In addition, in order to further increase the application range of the shuttle valve of the present application, in this embodiment, the first outlet valve channel 13 is provided with a detachable sealing structure, and when the sealing structure is installed on the first outlet valve channel 13, the medium entering the inner cavity 15 is suitable for being discharged from the second outlet valve channel 14. Therefore, when the closed structure is in the closed state, the shuttle valve has the same as the prior art and only has one outlet, so the shuttle valve has the adjusting function, can be adjusted according to actual requirements and is arranged to be the same as the prior art, and the use is more ingenious and flexible.

Specifically, in the present embodiment, the closing structure is a plug screw 3, and the top end of the first valve outlet channel 13 is provided with an internal thread, so that the first valve outlet channel 13 is suitable for being screwed with the plug screw 3. The structure is simple, the operation is simple and convenient, and the connection is stable.

As shown in fig. 2, in the present embodiment, the first inlet valve channel 11, the second inlet valve channel 12, the first outlet valve channel 13 and the second outlet valve channel 14 are distributed in a cross-shaped structure, the first inlet valve channel 11 and the second inlet valve channel 12 are disposed at left and right ends of the inner cavity 15, and the first outlet valve channel 13 and the second outlet valve channel 14 are disposed at upper and lower ends of the inner cavity 15. And the first inlet valve channel 11 and the second inlet valve channel 12 are coaxially arranged, and the first outlet valve channel 13 and the second outlet valve channel 14 are coaxially arranged, so that the flow direction of media in the first outlet valve channel 13 and the second outlet valve channel 14 is coaxial reverse circulation, which is beneficial to keeping the stability of the valve core 2.

In addition, as shown in fig. 2, in the present embodiment, the left and right ends of the inner cavity 15 are respectively connected to the first intake valve passage 11 and the second intake valve passage 12, the valve core 2 is adapted to block the first intake valve passage 11 and the second intake valve passage 12, and when the first intake valve passage 11 or the second intake valve passage 12 is filled with a medium, the medium is adapted to drive the valve core 2 to move laterally in the inner cavity 15 and abut against the crossing of the other intake valve passage. The structure reliably ensures the normal function of the shuttle valve, and can effectively ensure that no backflow between sources can occur between two different fluid sources.

Further, as shown in fig. 2 and 3, in the present embodiment, the length of the inner cavity 15 is greater than the length of the valve core 2, and the width of the inner cavity 15 is greater than or equal to the width of the valve core 2, which is to ensure that the valve core 2 can move laterally in the inner cavity 15, on the one hand, and to leave a space for allowing medium to flow into the first outlet valve channel 13 and the second outlet valve channel 14 disposed at the upper and lower ends of the inner cavity 15, on the other hand.

In addition, in the present embodiment, the spool 2 has a spherical structure, and the diameter of the spool 2 is larger than the crossing diameters of the first intake valve passage 11 and the second intake valve passage 12. The structure effectively ensures the blocking effect of the valve core 2 on the valve inlet channel, and the valve core 2 is arranged into a spherical structure, on one hand, because the sealing performance of the spherical structure is better, and on the other hand, because the spherical body can enable the abrasion of the valve core 2 when colliding with the inner wall of the inner cavity 15 to be smaller.

Further, in this embodiment, the connection between the inner cavity 15 and the first valve inlet channel 11 and the second valve inlet channel 12 is an arc structure, and the end of the arc structure is tangent to the valve core 2. The above-mentioned connection is specifically referred to as the edges of the left and right ends of the inner cavity 15 in fig. 2 and 3, and the tangential of the end of the cambered surface structure with the valve core 2 means that the cross section of the cambered surface structure is actually equivalent to a concentric tangential with the valve core 2, but the diameter is larger than a part of a circle of the diameter of the valve core 2, so when the valve core 2 is pushed to the edge by the medium, the edge of the valve core 2 and the cambered surface structure are closely attached together, thus the tightness is better, and more importantly, the friction between the valve core 2 and the inner wall of the inner cavity 15 is larger, and the rotation is not easy to occur due to two medium flows in different directions which are divided into two.

In addition, as shown in fig. 3, in this embodiment, the specific composition structure of each valve passage in the shuttle valve is: the shuttle valve further comprises a first valve seat 4 and a first flange 6, a first channel 61 and a second channel 41 which are communicated are arranged between the first valve seat 4 and the first flange 6 so as to form a first inlet valve channel 11, a third channel 16 and a fourth channel 17 are respectively arranged at the upper end and the lower end of the valve body 1 so as to form a first outlet valve channel 13 and a second outlet valve channel 14, the shuttle valve further comprises a second valve seat 5 and a second flange 7, a fifth channel 51 and a sixth channel 18 which are communicated and mutually perpendicular are arranged between the second valve seat 5 and the valve body 1 so as to form a second inlet valve channel 12, and the second flange 7 is suitable for being fixedly arranged at the side end of the valve body 1. In the above-mentioned valve passages, the first outlet valve passage 13 and the second outlet valve passage 14 are passages formed on the valve body 1 separately, and the first inlet valve passage 11 is formed by means of the cooperation of the first flange 6 and the first valve seat 4, similarly to the prior art, so that detailed description will not be made, and the first flange 6 and the second flange 7 also play roles in protecting the structures of the inner wall of the valve body 1 and enhancing the sealing property.

It should be noted that, in the present embodiment, the second valve inlet channel 12 is formed by matching the second valve seat 5 with the valve body 1, and the fifth channel 51 and the sixth channel 18 are disposed perpendicular to each other, so that one valve inlet channel and one valve outlet channel are disposed on the same surface of the valve body 1, thereby facilitating connection of the shuttle valve with some specific structures.

The foregoing has outlined the basic principles, main features and advantages of the present application. It will be appreciated by persons skilled in the art that the present application is not limited to the embodiments described above, and that the embodiments and descriptions described herein are merely illustrative of the principles of the present application, and that various changes and modifications may be made therein without departing from the spirit and scope of the application, which is defined by the appended claims. The scope of protection of the present application is defined by the appended claims and equivalents thereof.

Claims

1. A shuttle valve comprising a valve body, characterized in that: the valve body is internally provided with a first valve inlet channel, a second valve inlet channel, a first valve outlet channel and a second valve outlet channel which are communicated with each other, the centers of the first valve inlet channel, the second valve inlet channel, the first valve outlet channel and the second valve outlet channel are provided with inner cavities, and valve cores are arranged in the inner cavities;

2. A shuttle valve as claimed in claim 1, wherein: the first outlet valve channel is provided with a detachable sealing structure, and when the sealing structure is arranged on the first outlet valve channel, media entering the inner cavity are suitable for being discharged from the second outlet valve channel.

3. A shuttle valve as claimed in claim 2, wherein: the closed structure is a screw plug, and the top end of the first valve outlet channel is provided with an internal thread, so that the first valve outlet channel is suitable for being in threaded connection with the screw plug.

4. A shuttle valve as claimed in claim 1, wherein: the left end and the right end of the inner cavity are respectively connected with the first valve inlet channel and the second valve inlet channel, the valve core is suitable for blocking the first valve inlet channel and the second valve inlet channel, and when the first valve inlet channel or the second valve inlet channel is filled with media, the media are suitable for driving the valve core to transversely move in the inner cavity and prop against a crossing of the other valve inlet channel.

5. A shuttle valve as claimed in claim 4, wherein: the length of the inner cavity is greater than the length of the valve core, and the width of the inner cavity is greater than or equal to the width of the valve core.

6. A shuttle valve as claimed in claim 4, wherein: the valve core is of a sphere structure, and the diameter of the valve core is larger than the diameters of the crossing of the first valve inlet channel and the second valve inlet channel.

7. A shuttle valve as claimed in claim 6, wherein: the connecting part of the inner cavity and the first valve inlet channel and the second valve inlet channel is of an arc surface structure, and the end part of the arc surface structure is tangent to the valve core.

8. A shuttle valve as claimed in claim 1, wherein: the first valve inlet channel, the second valve inlet channel, the first valve outlet channel and the second valve outlet channel are distributed in a cross structure, the first valve inlet channel and the second valve inlet channel are arranged at the left end and the right end of the inner cavity, and the first valve outlet channel and the second valve outlet channel are arranged at the upper end and the lower end of the inner cavity.

9. A shuttle valve as claimed in claim 1, wherein: the shuttle valve further comprises a first valve seat and a first flange, a first channel and a second channel which are communicated are arranged between the first valve seat and the first flange, so that a first valve inlet channel is formed, and a third channel and a fourth channel are respectively arranged at the upper end and the lower end of the valve body, so that a first valve outlet channel and a second valve outlet channel are formed.

10. A shuttle valve as claimed in claim 1, wherein: the shuttle valve further comprises a second valve seat and a second flange, wherein a fifth channel and a sixth channel which are communicated and perpendicular to each other are arranged between the second valve seat and the valve body, so that a second valve inlet channel is formed, and the second flange is suitable for being fixedly arranged at the side end of the valve body.