CN116608288A

CN116608288A - Switch valve

Info

Publication number: CN116608288A
Application number: CN202310453492.9A
Authority: CN
Inventors: 陈科
Original assignee: Ningbo Wanjia Intelligent Technology Co ltd
Current assignee: Ningbo Wanjia Intelligent Technology Co ltd
Priority date: 2023-04-22
Filing date: 2023-04-22
Publication date: 2023-08-18

Abstract

The application relates to a switch valve which comprises an electric actuating structure and a valve body mechanism, wherein the electric actuating structure comprises a shell, an outer connector, a winding framework, a coil, an external pole piece and a movable core, the outer connector is arranged on the side wall of the shell, the winding framework is arranged in the shell, the external pole piece is arranged at one end of the winding framework close to the outer connector, the external pole piece stretches into the outer connector, the coil is wound on the winding framework, the end part of the coil is electrically connected with the external pole piece, the two ends of the winding framework are arranged on a plugging plate, the winding framework is arranged in a hollow mode, the movable core is connected in the winding framework in a sliding mode, the shell is fixed on the valve body mechanism, an elastic piece is arranged between one end of the movable core, far away from the valve body mechanism, and the winding framework, the elastic piece can drive the movable core to move, and the movable core can drive the valve body mechanism to be opened or closed in the winding framework. The application has the advantages of improving the stability of the valve and realizing the effect of quick opening and closing of the valve.

Description

Switch valve

Technical Field

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

Background

The switch valve refers to a valve type switch, such as a switch with a stop function like a faucet, a pressure cooker valve, a pipeline valve, etc. The switch valve is divided into a pneumatic switch valve and an electric switch valve. The pneumatic switch valve is characterized in that control air in an air path or a pipeline is sent to an operation cylinder in the valve to push a piston to move so as to drive a sliding block to change the valve position of the valve body; the electric switch valve is characterized in that one is used for controlling the sliding block to change the valve position of the valve body through the motor, and the other is used for driving the sliding block to change the valve position through electromagnetic attraction generated by the spiral coil.

At present, a motor-controlled switching valve generally comprises a valve body, a motor and a valve core capable of controlling the valve position of the valve body, wherein the valve position in the valve body is controlled by energizing the motor to drive the valve core to rotate in the valve body, so that the valve is opened or closed.

Aiming at the related technology, the motor control switch valve works through motor control, so that the power consumption is high, the valve core is driven to move through mechanical linkage by the motor, the stability is poor due to higher failure rate in the use process, the switch response of the valve is slower, and the valve is difficult to open and close rapidly.

Disclosure of Invention

In order to improve the stability of a valve and realize quick opening and closing of the valve, the application provides a switching valve.

The application provides a switch valve, which adopts the following technical scheme:

the utility model provides a ooff valve, includes electric actuating mechanism and valve body mechanism, electric actuating mechanism includes shell, external connection, wire winding skeleton, coil, external pole piece and activity core, the external connection is located the shell lateral wall, the wire winding skeleton is located in the shell, external pole piece is located the wire winding skeleton is close to the one end of external connection, external pole piece stretches into in the external connection, the coil is around locating on the wire winding skeleton, the tip and the external pole piece electric connection of coil, the shutoff board is located at the both ends of wire winding skeleton, wire winding skeleton cavity sets up, activity core sliding connection in the wire winding skeleton, the shell is fixed in on the valve body mechanism, the one end that valve body mechanism was kept away from to the activity core with be equipped with the elastic component between the wire winding skeleton, the elastic component can drive the activity core and remove, the activity core can drive opening or closing of valve body mechanism in the wire winding skeleton.

By adopting the technical scheme, when the valve is controlled to be opened and closed, after the external pole piece is communicated with an external power supply, a coil on the winding framework is electrified to generate a magnetic field, and under the action of the magnetic field of the coil, the movable core slides in the winding framework under the action of the acting force of the magnetic field, and the valve body mechanism is driven to be opened and closed by the movement of the movable core; when the pole piece is disconnected from an external power supply, the coil is powered off, a magnetic field generated by the coil disappears, the movable core is driven to reset under the action of the elastic piece, and then the valve body mechanism is driven to open and close, so that the valve body mechanism is controlled to open and close, the valve body is controlled to open and close rapidly through electromagnetic control, the valve body mechanism is controlled in the movable core through electromagnetic control, and no complex mechanical transmission connection is caused, so that the switching valve has good operation stability.

Optionally, the valve body mechanism includes passageway pipe, connecting pipe, plug core and piston end cap, the connecting pipe is located perpendicularly on the passageway pipe and communicate with each other with the passageway pipe, the plug core is located in the passageway pipe and just set up with communicating pipe, piston end cap sliding connection in the connecting pipe, shell and connecting pipe fixed connection, the piston end cap keep away from the one end of passageway pipe with movable core is connected.

Through adopting above-mentioned technical scheme, when controlling valve body mechanism through electric actuator, through the activity core motion, drive piston end cap motion, support tightly through piston end cap and stifled core and realize the closure through the pipe both ends, after separation between piston end cap and the stifled core, can form the circulation passageway through between piston end cap and the stifled core in the passageway intraductal, and then realize opening and closing valve body mechanism.

Optionally, the one end that the shell is close to the connecting pipe is equipped with the locating tube, the shell lateral wall is equipped with the connection pad, fixed connection between connection pad and the connecting pipe, the locating tube stretches into in the connecting pipe, piston end cap and locating tube inner wall sliding connection, the one end that is close to the passageway pipe in the connecting pipe is equipped with the seal groove, seal groove department is equipped with seal assembly, seal assembly is used for sealing the clearance between connecting pipe and the locating tube.

Through adopting above-mentioned technical scheme, make convenient fixed connection between shell and the connecting pipe through the locating tube that sets up, improve the stability when the valve body equipment is fixed to seal through the clearance between seal assembly connecting pipe and the locating tube, further improve the sealing performance of ooff valve, avoid fluid to take place to leak.

Optionally, the seal assembly includes sealing ring and stifled ring, the sealing ring is located in the seal groove, stifled ring sliding connection in the passageway pipe, the internal diameter of stifled ring reduces gradually from the fluid entering end from the outflow end, one side that the stifled ring is close to the sealing ring is equipped with chamfer face, the sealing ring stretches out the one end of seal groove be equipped with chamfer face matched with inclined plane on the stifled ring.

Through adopting above-mentioned technical scheme, when the ooff valve during operation, after the fluid lets in the passageway intraductal, when the through stifled ring, because the internal diameter of stifled ring reduces gradually for can form the effort that removes to stifled ring when the fluid passes through, drive stifled ring and remove in the passageway intraductal, through the mutual cooperation of chamfer face on the stifled ring and sealing ring upper inclined plane, make the stifled ring form ascending thrust to the sealing ring at the in-process that removes, make the sealing ring support all the time tightly in the seal groove and form good shutoff effect to the seam, and then further improve the sealing performance of ooff valve.

Optionally, the sealing ring includes rubber ring and supporting ring, the rubber ring is coaxial to be located the supporting ring stretches into the one end in the seal groove, the supporting ring with stifled ring butt.

Through adopting above-mentioned technical scheme, through setting up supporting ring and rubber ring, form good supporting effect to the rubber ring through the supporting ring, form effort back to the supporting ring through stifled ring, the supporting ring can cross good support and the pushing action to the rubber ring, and then make the rubber ring can support tightly and form good sealed effect in the seal groove.

Optionally, a flexible blocking piece is arranged at the end part of the positioning pipe extending into the connecting pipe, and the blocking core is abutted with the middle part of the flexible blocking piece.

Through adopting above-mentioned technical scheme, through setting up flexible shutoff piece for when the piston end cap is in the shutoff core to support tightly to carry out the shutoff, flexible shutoff piece plays good cushioning effect, and when needs opening the valve, remove through the piston end cap and break away from between the shutoff core, when fluid through the passageway pipe, under great pressure effect, flexible shutoff piece can be jacked up, and then fluid circulates in through the passageway pipe, and then makes the valve more stable when closing with opening.

Optionally, the flexible plugging sheet is provided with a communication hole, the communication hole is located at one side of the plugging core close to the fluid inlet end, and the piston plug is provided with a through hole corresponding to the communication hole.

Through adopting above-mentioned technical scheme, through setting up the through-hole on intercommunicating pore and the activity blocking head for fluid pressure is great in the passageway pipe, and when the valve was closed, the pressure that makes piston end cap both sides in accessible intercommunicating pore and the through-hole was kept balanced state relatively, and then avoided the passageway intraductal pressure great to lead to the piston end cap to be by the jack-up to cause the bleeder, further improved the stability of ooff valve during operation.

Optionally, a cavity is arranged in the piston plug, a sliding block is connected in the cavity in a sliding way, the movable core stretches into the cavity and is fixedly connected with the sliding block, and one end, away from the movable core, of the sliding block is coaxially provided with a buffering elastic piece.

Through adopting above-mentioned technical scheme, through setting up slider and buffering bullet piece, when the movable core drives the motion of piston end cap and realizes opening and closing of valve, can play good cushioning effect, further improve the stability of valve during operation.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the electric actuating mechanism comprises a shell, an outer joint, a winding framework, a coil, an external pole piece and a movable core, the movable core is driven to move by a magnetic field generated by the coil, and then the valve body mechanism is driven to open and close, so that the valve body mechanism is controlled to open and close, and the valve body is controlled to open and close by adopting an electromagnetic valve body, so that the valve body is fast in opening and closing response, and no complex mechanical transmission connection exists, and further, the switching valve has good operation stability;

2. by arranging the sealing component comprising the sealing ring and the plugging ring, when fluid passes through the plugging ring after being introduced into the passage pipe, the fluid can move the plugging ring by acting force on the plugging ring to drive the plugging ring to move in the passage pipe, and the plugging ring forms upward thrust on the sealing ring in the moving process, so that the sealing ring always abuts against the sealing groove to form a good plugging effect on a seam;

3. through setting up flexible shutoff piece, the piston end cap is in when the shutoff core supports tightly to carry out the shutoff, and flexible shutoff piece plays good cushioning effect to through setting up the through-hole on intercommunicating pore and the activity shutoff head, in fluid accessible intercommunicating pore and the through-hole, make the pressure loudness of piston end cap both sides keep balanced state, avoid the passageway intraductal pressure great to lead to the piston end cap to be by the jack-up cause the drainage phenomenon.

Drawings

Fig. 1 is a schematic structural diagram of a switching valve according to an embodiment of the present application.

Fig. 2 is a perspective cross-sectional view of an on-off valve according to an embodiment of the present application.

Fig. 3 is an enlarged schematic view of the portion a in fig. 2.

Fig. 4 is a perspective sectional view of an embodiment of the present application in another state of the switching valve.

Reference numerals: 1. an electric executing structure; 11. a housing; 111. a positioning tube; 112. a connecting disc; 12. an outer joint; 13. a winding framework; 131. a plugging plate; 14. a coil; 15. externally connected pole pieces; 16. a movable core; 161. an elastic member; 2. a valve body mechanism; 21. a passage tube; 22. a connecting pipe; 221. sealing grooves; 23. plugging the core; 24. a piston plug; 241. a through hole; 242. a slide block; 243. a buffer spring; 25. a seal assembly; 251. a rubber ring; 252. a support ring; 253. blocking rings; 26. a flexible blocking piece; 261. the communication hole.

Detailed Description

The application is described in further detail below with reference to fig. 1-4.

The embodiment of the application discloses a switch valve. Referring to fig. 1, the switching valve includes an electric actuating structure 1 and a valve body mechanism 2;

referring to fig. 1 and 2, the electric actuator includes a housing 11, an outer joint 12, a winding framework 13, a coil 14, an external pole piece 15 and a movable core 16, wherein the outer joint 12 is integrally fixed on the side wall of the housing 11, and is not externally connected through the outer joint 12, and a clamping fast and a positioning block are integrally arranged on the side wall of the outer joint 12, and when the electric actuator is connected through the outer joint 12, the electric actuator is positioned through the positioning block, and is in clamping connection with the outside through the clamping fast to realize detachable connection; the winding framework 13 is installed and fixed in the shell 11, the external pole piece 15 is fixed at one end of the winding framework 13 close to the external joint 12, the external pole piece 15 stretches into the external joint 12 to be connected with the outside conveniently, the coil 14 is wound on the winding framework 13, the coil 14 is specifically formed by winding enamelled wires, one end of each enamelled wire of the coil 14 penetrates through a wiring groove arranged on the winding framework 13 to be welded with one external pole piece 15, and the other end of each enamelled wire of the coil 14 is wound on a winding post arranged on the winding framework 13 and then welded with the other external pole piece 15; the both ends fixed connection in shutoff board 131 of wire winding skeleton 13, seal shell 11 and wire winding skeleton 13 spare through shutoff board 131, wire winding skeleton 13 cavity setting, movable core 16 sliding connection is in wire winding skeleton 13, and movable core 16 specifically is movable iron core, and the magnetic field that produces through coil 14 circular telegram can drive movable core 16 and remove in wire winding skeleton 13. An elastic piece 161 is arranged between one end of the movable core 16 far away from the valve body mechanism 2 and the winding framework 13, the elastic piece 161 is specifically a spring, when a magnetic field generated by energizing the coil 14 drives the movable core 16 to move, after the magnetic field disappears, the magnetic field drives the movable core 16 to move under the action of the elastic piece 161 in a position recovery manner, so that the movable core 16 is controlled to move, the elastic piece 161 can drive the movable core 16 to move, and an electromagnetic control valve body switch is adopted, so that the valve body is rapidly opened and closed, and has good operation stability.

Referring to fig. 2 and 3, the movable core 16 moves within the bobbin 13 to actuate the opening or closing of the valve body mechanism 2. The valve body mechanism 2 comprises a passage pipe 21, a connecting pipe 22, a blocking core 23 and a piston plug 24, wherein the connecting pipe 22 is vertically and integrally formed on the passage pipe 21 and communicated with the passage pipe 21, the blocking core 23 is integrally formed in the passage pipe 21 and is opposite to the connecting pipe, the blocking core 23 can block two sides of the passage pipe 21, the piston plug 24 is slidably connected in the connecting pipe 22, the piston plug 24 moves in the connecting pipe 22, when the piston plug 24 is abutted against the blocking core 23, the blocking of a passage in the passage pipe 21 is realized, and when the piston plug 24 is separated from the blocking core 23, the passage in the passage pipe 21 is opened; one end of the piston plug 24 far away from the passage pipe 21 is connected with the movable core 16, and when the movable core 16 moves, the piston plug 24 can be driven to move so as to realize opening and closing of the valve. The cavity is formed in the piston plug 24, the sliding block 242 is connected in the cavity in a sliding mode, the moving direction of the sliding block 242 is along the moving direction of the piston plug 24, the movable core 16 stretches into the cavity and is fixedly connected with the sliding block 242, the end, away from the movable core 16, of the sliding block 242 is coaxially provided with the buffering elastic piece 243, the buffering elastic piece 243 is specifically a spring, when the movable core 16 drives the piston plug 24 to move, a good buffering effect can be achieved, and the stability of the valve during operation is further improved.

Referring to fig. 2 and 3, a flexible blocking piece 26 is fixedly installed at an end portion of the positioning tube 111 extending into the connecting tube 22, the flexible blocking piece 26 is made of a material having elastic deformation, such as rubber, and when the flexible blocking piece 26 is in a natural state, the upper portion of the blocking core 23 is abutted against the middle portion of the flexible blocking piece 26. The flexible blocking piece 26 is provided with a communication hole 261, the communication hole 261 is positioned at one side of the blocking core 23 close to the fluid inlet end, and the piston plug 24 is provided with a through hole 241 corresponding to the communication hole 261; when the valve is closed, fluid can enter into one side of the piston plug 24 far away from the plug core 23 through the communication hole 261 and the through hole 241, so that the pressure at two sides of the piston plug 24 is kept in a balanced state relatively, and further leakage caused by the fact that the piston plug 24 is jacked up when the pressure in the passage pipe 21 is large is avoided, and the control of the switching valve is more stable.

Referring to fig. 2 and 3, the housing 11 is fixedly installed on the connecting pipe 22, the housing 11 is fixedly connected with the connecting pipe 22 through bolts, one end of the housing 11, which is close to the connecting pipe 22, is integrally formed with a positioning pipe 111, the positioning pipe 111 can extend into the connecting pipe 22, the side wall of the housing 11 is integrally formed with a connecting disc 112, the periphery of the connecting disc 112 is connected with the connecting pipe 22 through bolts, a sealing gasket is installed at the connection part of the connecting disc 112 and the connecting pipe 22, a piston plug 24 is slidably connected with the inner wall of the positioning pipe 111, a sealing groove 221 is arranged at one end, which is close to the passage pipe 21, of the connecting pipe 22, a sealing assembly 25 is installed at the sealing groove 221, and the sealing assembly 25 is used for sealing a gap between the connecting pipe 22 and the positioning pipe 111, so that the sealing performance of the switching valve is further improved.

Referring to fig. 3 and 4, the seal assembly 25 includes a seal ring and a seal ring 253, the seal ring is installed in the seal groove 221, the seal ring includes a rubber ring 251 and a support ring 252, the rubber ring 251 is coaxially disposed at one end of the support ring 252 extending into the seal groove 221, one side of the support ring 252 far away from one end of the rubber ring 251 and close to the inlet end of the passageway pipe 21 extends out of the seal groove 221, the seal ring 253 is slidably connected in the passageway pipe 21, the inner diameter of the seal ring 253 gradually decreases from the fluid inlet end to the outlet end, a chamfer surface is disposed at one side of the seal ring 253 close to the seal ring, one end of the seal ring extending out of the seal groove 221 is provided with a bevel surface matched with the chamfer surface on the seal ring 253, when the inner diameter of the seal ring 253 gradually decreases, the seal ring 253 forms a moving force on the seal ring 253 when the fluid in the passageway pipe 21 flows, the seal ring 253 is driven to move in the passageway pipe 21, the seal ring 253 is pushed upward by the interaction of the chamfer surface on the seal ring 253, the seal ring is always pushed up, and the seal ring is pushed up by the seal ring 253 when the seal ring is pushed up against the seal ring 21, and the seal ring is kept well beyond the seal ring 21, and the seal ring is pushed up in the seal ring, and the seal ring is kept well when the seal ring is pushed up against the seal ring 21, and the seal ring is kept well against the seal ring 21, and the seal ring is kept in the seal ring and the seal ring well in the seal ring.

The implementation principle of the switch valve of the embodiment of the application is as follows: when the valve is controlled to be opened and closed, the external pole piece 15 is communicated with an external power supply, so that the coil 14 is electrified to generate a magnetic field, the movable core 16 is driven to slide in the winding framework 13 by the action of the magnetic field, the movable core 16 moves to drive the piston plug 24 to move, after the piston plug 24 is separated from the flexible plug piece 26, the flexible plug piece 26 is deformed under the action of fluid pressure in the passage pipe 21, the flexible plug piece 26 is jacked up to be separated from the plug core 23, the passage in the passage pipe 21 is circulated, after the coil 14 is powered off, the generated magnetic field of the coil 14 is disappeared, the movable core 16 is driven to reset under the action of a spring, and the movable core 16 drives the piston plug 24 to move, so that the piston plug 24 pushes the flexible plug piece 26 to be abutted against the plug core 23, and the plugging effect on the passage in the passage pipe 21 is realized; and when the valve works, the strong pressure of the fluid can apply force to the blocking ring 253 to drive the blocking ring 253 to move in the passage pipe 21, and the blocking ring 253 forms upward thrust to the sealing ring in the moving process, so that the rubber ring 251 always abuts against the sealing groove 221, and the sealing performance is improved.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. A switching valve, characterized in that: the electric actuating mechanism comprises an electric actuating structure (1) and a valve body mechanism (2), the electric actuating mechanism comprises a shell (11), an outer joint (12), a winding framework (13), a coil (14), an external pole piece (15) and a movable core (16), wherein the outer joint (12) is arranged on the side wall of the shell (11), the winding framework (13) is arranged in the shell (11), the external pole piece (15) is arranged at one end, close to the outer joint (12), of the winding framework (13), the external pole piece (15) stretches into the outer joint (12), the coil (14) is wound on the winding framework (13), the end part of the coil (14) is electrically connected with the external pole piece (15), two ends of the winding framework (13) are arranged on a blocking plate (131), the winding framework (13) is arranged in a hollow mode, the movable core (16) is slidably connected in the winding framework (13), the shell (11) is fixed on the valve body mechanism (2), the movable core (16) is far away from one end, close to the winding framework (13), of the valve body mechanism (16) is provided with an elastic piece (161), and the elastic piece (161) can move between the valve body (16), the movable core (16) moves in the winding framework (13) and can drive the valve body mechanism (2) to be opened or closed.

2. A switching valve according to claim 1, wherein: the valve body mechanism (2) comprises a passage pipe (21), a connecting pipe (22), a blocking core (23) and a piston plug (24), wherein the connecting pipe (22) is vertically arranged on the passage pipe (21) and is communicated with the passage pipe (21), the blocking core (23) is arranged in the passage pipe (21) and is opposite to the connecting pipe, the piston plug (24) is slidingly connected in the connecting pipe (22), the shell (11) is fixedly connected with the connecting pipe (22), and one end of the piston plug (24) away from the passage pipe (21) is connected with the movable core (16).

3. A switching valve according to claim 2, wherein: the utility model discloses a connecting pipe, including shell (11), connecting pipe (22), piston plug (24), connecting pipe (22), sealing groove (221) are equipped with in the one end that shell (11) is close to connecting pipe (22), shell (11) lateral wall is equipped with connection pad (112), fixed connection between connection pad (112) and connecting pipe (22), positioning pipe (111) stretch into in connecting pipe (22), piston plug (24) and positioning pipe (111) inner wall sliding connection, the one end that is close to passageway pipe (21) in connecting pipe (22) is equipped with seal groove (221), seal groove (221) department is equipped with seal assembly (25), seal assembly (25) are used for sealing the clearance between connecting pipe (22) and positioning pipe (111).

4. A switching valve according to claim 3, wherein: seal assembly (25) are including sealing ring and stifled ring (253), the sealing ring is located in seal groove (221), stifled ring (253) sliding connection in passage pipe (21), the internal diameter of stifled ring (253) reduces gradually from the fluid entering end from the outflow end, one side that stifled ring (253) is close to the sealing ring is equipped with chamfer face, the sealing ring stretches out the one end of seal groove (221) be equipped with chamfer face matched with inclined plane on stifled ring (253).

5. A switching valve according to claim 4, wherein: the sealing ring comprises a rubber ring (251) and a supporting ring (252), wherein the rubber ring (251) is coaxially arranged at one end of the supporting ring (252) extending into the sealing groove (221), and the supporting ring (252) is abutted with the blocking ring (253).

6. A switching valve according to claim 3, wherein: one end part of the positioning pipe (111) extending into the connecting pipe (22) is provided with a flexible blocking piece (26), and the blocking core (23) is abutted with the middle part of the flexible blocking piece (26).

7. A switching valve according to claim 6, wherein: the flexible plugging piece (26) is provided with a communication hole (261), the communication hole (261) is positioned on one side of the plugging core (23) close to the fluid inlet end, and the piston plug (24) is provided with a through hole (241) corresponding to the communication hole (261).

8. A switching valve according to claim 2, wherein: the piston plug (24) is internally provided with a cavity, a sliding block (242) is connected in the cavity in a sliding way, the movable core (16) stretches into the cavity and is fixedly connected with the sliding block (242), and one end, far away from the movable core (16), of the sliding block (242) is coaxially provided with a buffering elastic piece (243).