CN112361029A - Three-way ball valve - Google Patents

Three-way ball valve Download PDF

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Publication number
CN112361029A
CN112361029A CN202011234733.3A CN202011234733A CN112361029A CN 112361029 A CN112361029 A CN 112361029A CN 202011234733 A CN202011234733 A CN 202011234733A CN 112361029 A CN112361029 A CN 112361029A
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CN
China
Prior art keywords
valve
ball
port
hole
switching
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202011234733.3A
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Chinese (zh)
Inventor
段井胜
刘秋燕
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Individual
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Individual
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Priority to CN202011234733.3A priority Critical patent/CN112361029A/en
Publication of CN112361029A publication Critical patent/CN112361029A/en
Withdrawn legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/105—Three-way check or safety valves with two or more closure members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/14—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle
    • F16K11/16—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane
    • F16K11/163—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane only turns
    • F16K11/166—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane only turns with the rotating spindles at right angles to the closure members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/04—Check valves with guided rigid valve members shaped as balls
    • F16K15/044—Check valves with guided rigid valve members shaped as balls spring-loaded
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
    • F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
    • F16K15/1823—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism for ball check valves

Abstract

The invention discloses a three-way ball valve which comprises a valve body, wherein a ball cavity is arranged in the valve body, and a first valve hole, a second valve hole and a third valve hole which are communicated with the ball cavity are arranged in the valve body; the end of the first valve hole far away from the ball cavity is an A port, the end of the second valve hole far away from the ball cavity is a B port, and the end of the third valve hole far away from the ball cavity is a C port; a first valve core assembly used for controlling the on-off of the first valve hole is arranged in the first valve hole, a second valve core assembly used for controlling the on-off of the second valve hole is arranged in the second valve hole, and a third valve core assembly used for controlling the on-off of the third valve hole is arranged in the third valve hole; a switching ball is rotationally connected in the ball cavity, a first valve rod assembly is arranged in the first valve hole, a second valve rod assembly is arranged in the second valve hole, and a third valve rod assembly is arranged in the third valve hole; the three-way ball valve is simple in structure, compact in size and low in manufacturing cost.

Description

Three-way ball valve
Technical Field
The invention belongs to the technical field of valves, and particularly relates to a three-way ball valve.
Background
In industrial or domestic infrastructure, media are usually conveyed by means of pipelines, which are regulated as a result of pressure or temperature changes, and regulating means, in particular ball valves, are used in the pipelines for regulating the flow in order to ensure optimum operating conditions and environmental safety. Ball valves are generally valves that use a ball with a circular passage as the opening and closing element, and the ball performs the opening and closing action with the rotation of the valve body. The opening and closing part of the ball valve is a ball body with a through hole and rotates around an axis vertical to the channel, so that the aim of opening and closing the channel is fulfilled. A conventional ball valve is generally a ball having a through hole formed therein and mounted on a valve seat to be opened and closed by rotation of the ball. The ball valve has the advantages of small fluid resistance, simple structure, tightness, reliability, convenient operation, rapid opening and closing, wide application range and the like, and is widely applied to various departments of petroleum, chemical industry, power generation, paper making, atomic energy, aviation, rockets and the like, and daily life of people. The tee bend ball valve function singleness of prior art can only realize controlling three passageway and close or two liang of intercommunications, can not realize the one-way circulation function between the three passageway, in order to realize the one-way circulation function, still need the series check valve, has increased use cost.
Disclosure of Invention
The invention aims to provide a three-way ball valve which is simple in structure, compact in size and low in manufacturing cost.
In order to solve the technical problems, the invention provides the following technical scheme: a three-way ball valve comprises a valve body, wherein a ball cavity is arranged in the valve body, a first valve hole, a second valve hole and a third valve hole which are communicated with the ball cavity are arranged in the valve body, and the axes of the first valve hole, the second valve hole and the third valve hole are in the same plane; the end of the first valve hole far away from the ball cavity is an A port, the end of the second valve hole far away from the ball cavity is a B port, and the end of the third valve hole far away from the ball cavity is a C port; a first valve core assembly used for controlling the on-off of the first valve hole is arranged in the first valve hole, a second valve core assembly used for controlling the on-off of the second valve hole is arranged in the second valve hole, and a third valve core assembly used for controlling the on-off of the third valve hole is arranged in the third valve hole; a switching ball is rotationally connected in the ball cavity, a first valve rod assembly is arranged between the first valve core assembly and the switching ball in the first valve hole, a second valve rod assembly is arranged between the second valve core assembly and the switching ball in the second valve hole, a third valve rod assembly is arranged between the third valve core assembly and the switching ball in the third valve hole, and when the switching ball rotates to a first working position, the A port, the B port and the C port are all blocked and are not communicated; when the switching ball rotates to the second working position, the fluid medium can flow into the port B from the port A in a one-way mode, and the port C is blocked from the port A and the port B; when the switching ball rotates to a third working position, the fluid medium can flow into the port C from the port B in a one-way mode, and the port A is isolated from the port B and the port C; when the switching ball rotates to the fourth working position, the fluid medium can flow into the port A from the port C in a single direction, and the port B is isolated from the port A and the port C; when the switching ball rotates to the fifth working position, the fluid medium can flow into the port B from the port C in a one-way mode, and the port A is isolated from the port B and the port C.
Further, the first valve core assembly comprises a first valve seat fixedly installed in a first valve hole, a first valve cavity is formed in one end, far away from the switching ball, of the first valve seat, a first valve port communicated with the first valve cavity is formed in one end, close to the switching ball, of the first valve seat, a first plug is fixedly arranged at one end, far away from the switching ball, of the first valve hole, a first valve ball is arranged in the first valve cavity, and a first spring is used for forcing the first valve ball to be pressed on the first valve port;
the second valve core assembly comprises a second valve seat fixedly arranged in a second valve hole, a second valve cavity is arranged at one end, far away from the switching ball, of the second valve seat, a second valve port communicated with the second valve cavity is arranged at one end, close to the switching ball, of the second valve seat, a second plug is fixedly arranged at one end, far away from the switching ball, of the second valve hole, a second valve ball is arranged in the second valve cavity, and a second spring used for forcing the second valve ball to be tightly pressed on the second valve port is arranged;
the third valve element assembly comprises a third valve seat fixedly installed in a third valve hole, a third valve cavity is arranged at one end, far away from the switching ball, of the third valve seat, a third valve port communicated with the third valve cavity is arranged at one end, close to the switching ball, of the third valve seat, a third plug is fixedly arranged at one end, far away from the switching ball, of the third valve hole, and a third spring used for forcing the third valve ball to be tightly pressed on the third valve port is arranged in the third valve cavity.
Furthermore, the first valve rod assembly comprises a first valve block which is fixedly arranged in the first valve hole and is positioned between the first valve seat and the switching ball, a first through hole for communicating the first valve port with the ball cavity is formed in the first valve block, and a first ejector rod positioned between the first valve ball and the switching ball is connected in the first valve block in a sliding mode along the axial direction of the first valve hole;
the second valve rod assembly comprises a second valve block which is fixedly arranged in a second valve hole and is positioned between a second valve seat and a switching ball, a second through hole for communicating a second valve port with a ball cavity is formed in the second valve block, and a second ejector rod positioned between the second valve ball and the switching ball is axially and slidably connected in the second valve block along the second valve hole;
the third valve rod assembly comprises a third valve block which is fixedly arranged in a third valve hole and is positioned between a third valve seat and the switching ball, a third through hole used for communicating a third valve port with the ball cavity is formed in the third valve block, and a third ejector rod positioned between the third valve ball and the switching ball is axially connected in the third valve block in a sliding mode along the third valve hole.
Furthermore, a curved surface groove is formed in the spherical surface of the switching ball, a first inclined surface and a second inclined surface are arranged on two sides of the curved surface groove, when the switching ball rotates to the first working position, the first ejector rod, the second ejector rod and the third ejector rod are all abutted against the spherical surface of the switching ball, the first ejector rod enables the first valve ball to be separated from the first valve port, the second ejector rod enables the second valve ball to be separated from the second valve port, and the third ejector rod enables the third valve ball to be separated from the third valve port;
when the switching ball rotates to the second working position, the curved surface groove communicates the first valve hole with the third valve hole, the first valve rod is propped against the spherical surface of the switching ball and props the first valve ball away from the first valve port, the third valve rod is propped against the second inclined surface, and the third valve ball is tightly pressed on the third valve port under the action of a third spring;
when the switching ball rotates to a third working position, the curved surface groove communicates the second valve hole with the third valve hole, the second valve rod is propped against the spherical surface of the switching ball and props the second valve ball away from the second valve port, the third valve rod is propped against the first inclined surface, and the third valve ball is pressed against the third valve port under the action of a third spring;
when the switching ball rotates to the fourth working position, the curved surface groove communicates the first valve hole with the third valve hole, the third valve rod is propped against the spherical surface of the switching ball and props the third valve ball away from the third valve hole, the first valve rod is propped against the first inclined surface, and the first valve ball is tightly pressed on the first valve hole under the action of the first spring;
when the switching ball rotates to the fifth working position, the curved surface groove communicates the second valve hole with the third valve hole, the third valve rod is propped against the spherical surface of the switching ball and props the third valve ball away from the third valve hole, the second valve rod is propped against the second inclined surface, and the second valve ball is tightly pressed on the second valve hole under the action of the second spring.
Further, rotate on the valve body and be connected with and switch ball fixed connection's pivot, the pivot is used for driving and switches the ball and rotate, the pivot stretches out valve body and fixed mounting has the handle in the one end of keeping away from switching the ball.
Further, the first valve hole and the second valve hole are coaxially arranged, and the third valve hole is perpendicular to the first valve hole.
Advantageous effects
Compared with the prior art, the technical scheme of the invention has the following advantages:
the switching ball has five working positions, and when the switching ball rotates to the first working position, the ports A, B and C are all isolated and not communicated; when the switching ball rotates to the second working position, the fluid medium can flow into the port B from the port A in a one-way mode, and the port C is blocked from the port A and the port B; when the switching ball rotates to a third working position, the fluid medium can flow into the port C from the port B in a one-way mode, and the port A is isolated from the port B and the port C; when the switching ball rotates to the fourth working position, the fluid medium can flow into the port A from the port C in a single direction, and the port B is isolated from the port A and the port C; when the switching ball rotates to the fifth working position, the fluid medium can flow into the port B from the port C in a single direction, and the port A is isolated from the port B and the port C; the invention has compact volume and simple structure, can realize multiple functions compared with the prior art, has wider application range, does not need to be connected with check valves in series during actual use, and saves the cost of pipelines.
Drawings
FIG. 1 is a cross-sectional view of the present invention in a first operating position;
FIG. 2 is a sectional view taken along the line A-A in FIG. 1;
FIG. 3 is a cross-sectional view of the present invention in a second operating position;
FIG. 4 is a cross-sectional view of the present invention in a third operating position;
FIG. 5 is a cross-sectional view of the present invention in a fourth operating position;
fig. 6 is a cross-sectional view of the present invention in a fifth operating position.
Detailed Description
Referring to fig. 1-6, the invention provides a three-way ball valve, which includes a valve body 1, a ball cavity 1a is arranged in the valve body 1, a first valve hole 1b, a second valve hole 1c and a third valve hole 1d which are communicated with the ball cavity 1a are arranged in the valve body 1, the axes of the first valve hole 1b, the second valve hole 1c and the third valve hole 1d are in the same plane, the first valve hole 1b and the second valve hole 1c are coaxially arranged, and the third valve hole 1d is perpendicular to the first valve hole 1 b; one end of the first valve hole 1B, which is far away from the ball cavity 1a, is an A port, one end of the second valve hole 1C, which is far away from the ball cavity 1a, is a B port, and one end of the third valve hole 1d, which is far away from the ball cavity 1a, is a C port; a first valve core assembly used for controlling the connection and disconnection of the first valve hole 1b is arranged in the first valve hole 1b, a second valve core assembly used for controlling the connection and disconnection of the second valve hole 1c is arranged in the second valve hole 1c, and a third valve core assembly used for controlling the connection and disconnection of the third valve hole 1d is arranged in the third valve hole 1 d; a switching ball 8 is rotatably connected in the ball cavity 1a, a rotating shaft 8a fixedly connected with the switching ball 8 is rotatably connected to the valve body 1, the rotating shaft 8a is used for driving the switching ball 8 to rotate, and one end of the rotating shaft 8a, which is far away from the switching ball 8, extends out of the valve body 1 and is fixedly provided with a handle 9; a first valve rod assembly is arranged between the first valve core assembly and the switching ball 8 in the first valve hole 1b, a second valve rod assembly is arranged between the second valve core assembly and the switching ball 8 in the second valve hole 1c, and a third valve rod assembly is arranged between the third valve core assembly and the switching ball 8 in the third valve hole 1 d.
The first valve core assembly comprises a first valve seat 5a fixedly installed in a first valve hole 1b, a first valve cavity 5a1 is arranged at one end, far away from the switching ball 8, of the first valve seat 5a, a first valve port 5a2 communicated with a first valve cavity 5a1 is arranged at one end, near the switching ball 8, of the first valve seat 5a, a first plug 2a is fixedly arranged at one end, far away from the switching ball 8, of the first valve hole 1b, a first valve ball 4a is arranged in the first valve cavity 5a1, and a first spring 3a used for forcing the first valve ball 4a to be pressed on the first valve port 5a 2; the second valve core assembly comprises a second valve seat 5b fixedly installed in a second valve hole 1c, a second valve cavity 5b1 is arranged at one end, far away from the switching ball 8, of the second valve seat 5b, a second valve port 5b2 communicated with the second valve cavity 5b1 is arranged at one end, near to the switching ball 8, of the second valve hole 5c, a second plug 2b is fixedly arranged at one end, far away from the switching ball 8, of the second valve hole 1c, a second valve ball 4b is arranged in the second valve cavity 5b1, and a second spring 3b used for forcing the second valve ball 4b to be pressed on the second valve port 5b 2; the third valve element assembly comprises a third valve seat 5c fixedly installed in a third valve hole 1d, a third valve cavity 5c1 is arranged at one end of the third valve seat 5c far away from the switching ball 8, a third valve port 5c2 communicated with the third valve cavity 5c1 is arranged at one end of the third valve seat 5c near the switching ball 8, a third plug 2c is fixedly arranged at one end of the third valve hole 1d far away from the switching ball 8, a third valve ball 4c is arranged in the third valve cavity 5c1, and a third spring 3c for forcing the third valve ball 4c to be pressed on the third valve port 5c 2.
The first valve rod assembly comprises a first valve block 6a fixedly arranged in a first valve hole 1b and positioned between a first valve seat 5a and a switching ball 8, a first through hole 6a1 used for communicating the first valve port 5a2 with a ball cavity 1a is arranged in the first valve block 6a, and a first ejector rod 7a positioned between a first valve ball 4a and the switching ball 8 is axially and slidably connected in the first valve block 6a along the first valve hole 1 b; the second valve rod assembly comprises a second valve block 6b fixedly arranged in the second valve hole 1c and positioned between the second valve seat 5b and the switching ball 8, a second through hole 6b1 for communicating the second valve port 5b2 with the ball cavity 1a is arranged in the second valve block 6b, and a second mandril 7b positioned between the second valve ball 4b and the switching ball 8 is axially and slidably connected in the second valve block 6b along the second valve hole 1 c; the third valve rod assembly comprises a third valve block 6c fixedly arranged in the third valve hole 1d and positioned between the third valve seat 5c and the switching ball 8, a third through hole 6c1 for communicating the third valve port 5c2 with the ball cavity 1a is arranged in the third valve block 6c, and a third mandril 7c positioned between the third valve ball 4c and the switching ball 8 is axially and slidably connected in the third valve block 6c along the third valve hole 1 d.
The spherical surface of the switching ball 8 is provided with a curved surface groove 81, two sides of the curved surface groove 81 are provided with a first inclined surface 82 and a second inclined surface 83, when the switching ball 8 rotates to the first working position, the first ejector rod 7a, the second ejector rod 7B and the third ejector rod 7C are all ejected on the spherical surface of the switching ball 8, the first ejector rod 7a ejects the first valve ball 4a from the first valve port 5a2, the second ejector rod 7B ejects the second valve ball 4B from the second valve port 5B2, the third ejector rod 7C ejects the third valve ball 4C from the third valve port 5C2, and at the moment, the ports A, B and C are not blocked.
When the switching ball 8 rotates to the second working position, the curved groove 81 communicates the first valve hole 1B with the third valve hole 1d, the first valve rod is pressed against the spherical surface of the switching ball 8 and presses the first valve ball 4a away from the first valve port 5a2, the third valve rod is pressed against the second inclined surface 83, the third valve ball 4C is pressed against the third valve port 5C2 under the action of the third spring 3C, at the moment, the fluid medium can flow into the port B from the port A in a one-way mode, and the port C is blocked from the port A and the port B.
When the switching ball 8 rotates to the third working position, the curved groove 81 connects the second valve hole 1C and the third valve hole 1d, the second valve rod abuts against the spherical surface of the switching ball 8 and abuts against the second valve ball 4B from the second valve port 5B2, the third valve rod abuts against the first inclined surface 82, the third valve ball 4C is pressed against the third valve port 5C2 under the action of the third spring 3C, at this time, the fluid medium can flow into the port C from the port B in one way, and the port a, the port B and the port C are all blocked and not communicated.
When the switching ball 8 rotates to the fourth working position, the curved groove 81 connects the first valve hole 1B and the third valve hole 1d, the third valve rod is propped against the spherical surface of the switching ball 8 and props the third valve ball 4C away from the third valve port 5C2, the first valve rod is propped against the first inclined surface 82, the first valve ball 4a is pressed against the first valve port 5a2 under the action of the first spring 3a, at the moment, the fluid medium can flow into the port A from the port C in a single direction, and the ports B, A and C are blocked and not communicated.
When the switching ball 8 rotates to the fifth working position, the curved groove 81 connects the second valve hole 1C and the third valve hole 1d, the third valve rod is pressed against the spherical surface of the switching ball 8 and presses the third valve ball 4C away from the third valve port 5C2, the second valve rod is pressed against the second inclined surface 83, the second valve ball 4B is pressed against the second valve port 5B2 under the action of the second spring 3B, and at the moment, the fluid medium can flow into the port B in one way from the port C, and the port A is blocked from the port B and the port C.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (6)

1. A three-way ball valve comprises a valve body and is characterized in that a ball cavity is arranged in the valve body, a first valve hole, a second valve hole and a third valve hole which are communicated with the ball cavity are arranged in the valve body, and the axes of the first valve hole, the second valve hole and the third valve hole are in the same plane; the end of the first valve hole far away from the ball cavity is an A port, the end of the second valve hole far away from the ball cavity is a B port, and the end of the third valve hole far away from the ball cavity is a C port; a first valve core assembly used for controlling the on-off of the first valve hole is arranged in the first valve hole, a second valve core assembly used for controlling the on-off of the second valve hole is arranged in the second valve hole, and a third valve core assembly used for controlling the on-off of the third valve hole is arranged in the third valve hole; a switching ball is rotationally connected in the ball cavity, a first valve rod assembly is arranged between the first valve core assembly and the switching ball in the first valve hole, a second valve rod assembly is arranged between the second valve core assembly and the switching ball in the second valve hole, a third valve rod assembly is arranged between the third valve core assembly and the switching ball in the third valve hole, and when the switching ball rotates to a first working position, the A port, the B port and the C port are all blocked and are not communicated; when the switching ball rotates to the second working position, the fluid medium can flow into the port B from the port A in a one-way mode, and the port C is blocked from the port A and the port B; when the switching ball rotates to a third working position, the fluid medium can flow into the port C from the port B in a one-way mode, and the port A is isolated from the port B and the port C; when the switching ball rotates to the fourth working position, the fluid medium can flow into the port A from the port C in a single direction, and the port B is isolated from the port A and the port C; when the switching ball rotates to the fifth working position, the fluid medium can flow into the port B from the port C in a one-way mode, and the port A is isolated from the port B and the port C.
2. The three-way ball valve according to claim 1, wherein the first valve core assembly comprises a first valve seat fixedly installed in a first valve hole, the first valve seat is provided with a first valve cavity at an end far away from the switching ball, the first valve seat is provided with a first valve port communicated with the first valve cavity at an end near the switching ball, the first valve hole is fixedly provided with a first plug at an end far away from the switching ball, the first valve cavity is provided with a first valve ball, and a first spring for forcing the first valve ball to press the first valve port is arranged in the first valve cavity;
the second valve core assembly comprises a second valve seat fixedly arranged in a second valve hole, a second valve cavity is arranged at one end, far away from the switching ball, of the second valve seat, a second valve port communicated with the second valve cavity is arranged at one end, close to the switching ball, of the second valve seat, a second plug is fixedly arranged at one end, far away from the switching ball, of the second valve hole, a second valve ball is arranged in the second valve cavity, and a second spring used for forcing the second valve ball to be tightly pressed on the second valve port is arranged;
the third valve element assembly comprises a third valve seat fixedly installed in a third valve hole, a third valve cavity is arranged at one end, far away from the switching ball, of the third valve seat, a third valve port communicated with the third valve cavity is arranged at one end, close to the switching ball, of the third valve seat, a third plug is fixedly arranged at one end, far away from the switching ball, of the third valve hole, and a third spring used for forcing the third valve ball to be tightly pressed on the third valve port is arranged in the third valve cavity.
3. The three-way ball valve according to claim 2, wherein the first valve rod assembly comprises a first valve block fixedly installed in the first valve hole and located between the first valve seat and the switching ball, a first through hole for communicating the first valve port with the ball cavity is formed in the first valve block, and a first push rod located between the first valve ball and the switching ball is axially and slidably connected in the first valve block along the first valve hole;
the second valve rod assembly comprises a second valve block which is fixedly arranged in a second valve hole and is positioned between a second valve seat and a switching ball, a second through hole for communicating a second valve port with a ball cavity is formed in the second valve block, and a second ejector rod positioned between the second valve ball and the switching ball is axially and slidably connected in the second valve block along the second valve hole;
the third valve rod assembly comprises a third valve block which is fixedly arranged in a third valve hole and is positioned between a third valve seat and the switching ball, a third through hole used for communicating a third valve port with the ball cavity is formed in the third valve block, and a third ejector rod positioned between the third valve ball and the switching ball is axially connected in the third valve block in a sliding mode along the third valve hole.
4. The three-way ball valve according to claim 3, wherein the spherical surface of the switching ball is provided with a curved groove, the curved groove is provided with a first inclined surface and a second inclined surface on two sides, when the switching ball rotates to the first working position, the first push rod, the second push rod and the third push rod all push against the spherical surface of the switching ball, the first push rod pushes the first valve ball away from the first valve port, the second push rod pushes the second valve ball away from the second valve port, and the third push rod pushes the third valve ball away from the third valve port;
when the switching ball rotates to the second working position, the curved surface groove communicates the first valve hole with the third valve hole, the first valve rod is propped against the spherical surface of the switching ball and props the first valve ball away from the first valve port, the third valve rod is propped against the second inclined surface, and the third valve ball is tightly pressed on the third valve port under the action of a third spring;
when the switching ball rotates to a third working position, the curved surface groove communicates the second valve hole with the third valve hole, the second valve rod is propped against the spherical surface of the switching ball and props the second valve ball away from the second valve port, the third valve rod is propped against the first inclined surface, and the third valve ball is pressed against the third valve port under the action of a third spring;
when the switching ball rotates to the fourth working position, the curved surface groove communicates the first valve hole with the third valve hole, the third valve rod is propped against the spherical surface of the switching ball and props the third valve ball away from the third valve hole, the first valve rod is propped against the first inclined surface, and the first valve ball is tightly pressed on the first valve hole under the action of the first spring;
when the switching ball rotates to the fifth working position, the curved surface groove communicates the second valve hole with the third valve hole, the third valve rod is propped against the spherical surface of the switching ball and props the third valve ball away from the third valve hole, the second valve rod is propped against the second inclined surface, and the second valve ball is tightly pressed on the second valve hole under the action of the second spring.
5. The three-way ball valve according to claim 1, wherein a rotating shaft fixedly connected with the switching ball is rotatably connected to the valve body, the rotating shaft is used for driving the switching ball to rotate, the rotating shaft extends out of the valve body at one end far away from the switching ball, and a handle is fixedly installed on the rotating shaft.
6. The three-way ball valve according to claim 1, wherein the first valve hole and the second valve hole are coaxially disposed, and the third valve hole is perpendicularly disposed to the first valve hole.
CN202011234733.3A 2020-11-07 2020-11-07 Three-way ball valve Withdrawn CN112361029A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011234733.3A CN112361029A (en) 2020-11-07 2020-11-07 Three-way ball valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011234733.3A CN112361029A (en) 2020-11-07 2020-11-07 Three-way ball valve

Publications (1)

Publication Number Publication Date
CN112361029A true CN112361029A (en) 2021-02-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011234733.3A Withdrawn CN112361029A (en) 2020-11-07 2020-11-07 Three-way ball valve

Country Status (1)

Country Link
CN (1) CN112361029A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021131113A1 (en) 2021-11-26 2023-06-01 Hanon Systems Ball valve with flow-optimized ball passage channel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021131113A1 (en) 2021-11-26 2023-06-01 Hanon Systems Ball valve with flow-optimized ball passage channel

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Application publication date: 20210212