CN116753341A - selector valve - Google Patents

selector valve Download PDF

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Publication number
CN116753341A
CN116753341A CN202310820878.9A CN202310820878A CN116753341A CN 116753341 A CN116753341 A CN 116753341A CN 202310820878 A CN202310820878 A CN 202310820878A CN 116753341 A CN116753341 A CN 116753341A
Authority
CN
China
Prior art keywords
valve
piston
air inlet
air outlet
air
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.)
Pending
Application number
CN202310820878.9A
Other languages
Chinese (zh)
Inventor
石瑞君
仇领光
翁国栋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Sanan Valve Manufacture Co ltd
Original Assignee
Ningbo Sanan Valve Manufacture Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ningbo Sanan Valve Manufacture Co ltd filed Critical Ningbo Sanan Valve Manufacture Co ltd
Priority to CN202310820878.9A priority Critical patent/CN116753341A/en
Publication of CN116753341A publication Critical patent/CN116753341A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0446—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces
    • F16K17/046—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces the valve being of the gate valve type or the sliding valve type
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/048—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded combined with other safety valves, or with pressure control devices
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/168—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side combined with manually-controlled valves, e.g. a valve combined with a safety valve
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

The application discloses a selector valve, comprising: the valve body is internally provided with an air inlet, an air outlet and a first movable cavity, and the air inlet is communicated with the air inlet channel; the valve mechanism comprises an air outlet pressing cap and a first piston, the air outlet pressing cap is detachably connected in the air outlet, the air outlet pressing cap comprises a sealing part, the valve is movably arranged in the first movable cavity, the first piston is in sealing fit with the sealing part to form a first valve, and the first valve controls the on-off of the air outlet and the air inlet; the control valve is fixedly connected to the valve body and is used for controlling the first piston to move; and the manual device comprises a handle, and the handle can drive the first piston to move so as to open the first valve. The application uses the pipeline to extinguish the fire, thereby the starting mode of the selection valve is simpler, the structure is more compact, the impact on the first piston is smaller, and the movement of the first piston is more flexible, thereby the fire can be extinguished more quickly.

Description

Selector valve
Technical Field
The application relates to the technical field of valves, in particular to a selection valve.
Background
At present, the selector valve is used in a fire-fighting combined distribution system and is a valve for remotely conveying and breaking and opening fire-fighting gas. The opening mode of the selector valve is two modes of valve core and diaphragm puncture; the former has high manufacturing requirements, the latter has to be used for preventing the electric device from being lowered, the selection valve is disassembled, the diaphragm is replaced, and the use is very inconvenient.
The existing selector valve generally adopts the mode that the air inlet and the air outlet are distributed at 90 degrees, so that the pipeline turns right angle after installation, the planar installation of the selector valve is easy to form pipeline auxiliary waste, the conveying pressure of fire extinguishing gas in the pipeline is reduced due to the increase of the pipeline, and meanwhile, the manufacturing cost is high due to the arrangement mode of the air inlet and the air outlet.
On the other hand, as the valve of the selector valve is closed and pressure is exerted on the piston from the outside, a certain friction force exists, and the structure is not provided with a buffer mechanism, the valve is opened, and the valve forms a larger impact force, so that the valve can move slowly, the time for opening the valve is prolonged, the fire extinguishing time is influenced, and the phenomenon that the valve is damaged and blocked exists, so that the safety is influenced. On the other hand, the arrangement of the air inlet and the air outlet results in high manufacturing cost.
Disclosure of Invention
In order to overcome the defects of the prior art, the application aims to provide the selection valve which is used for extinguishing fire through a pipeline, so that the starting mode of the selection valve is simpler, the structure is more compact, the impact on the first piston is smaller, and the movement of the first piston is more flexible, thereby extinguishing fire faster; the manual device can be manually intervened when the control valve fails, so that the safety and the practicability are further improved.
To achieve the above object, the present application provides a selector valve comprising: the valve body is internally provided with an air inlet, an air outlet and a first movable cavity, and the air inlet is communicated with the air inlet channel; the valve mechanism comprises an air outlet pressing cap and a first piston, the air outlet pressing cap is detachably connected in the air outlet, the air outlet pressing cap comprises a sealing part, the first piston is movably arranged in the first movable cavity, the first piston is in sealing fit with the sealing part to form a first valve, and the first valve controls the on-off of the air outlet and the air inlet; the control valve is fixedly connected to the valve body and is used for controlling the first piston to move; and the manual device comprises a handle, and the handle can drive the first piston to move so as to open the first valve.
Compared with the prior art, the application has the beneficial effects that: the air outlet pressing cap is detachably connected in the air outlet, and the sealing part on the air outlet pressing cap is in sealing fit with the first piston to form the first valve, so that the air outlet pressing cap is detachably arranged to enable the installation of the selection valve to be more convenient and the air outlet pressing cap to be convenient to replace so as to maintain equipment. The piston is controlled to move through the control valve, so that the communication between the air inlet and the air outlet is automatically completed, the fire extinguishing action is completed, and the manual device can be manually intervened when the control valve fails, so that the safety performance is greatly improved.
As an improvement, the valve mechanism further comprises a check ring, the check ring is in threaded fit with the valve body, the first piston is movably arranged in the check ring, a control part is arranged on the first piston, and the control part, the check ring and the valve body are in sealed fit to form a first air chamber; the valve body is internally provided with an air inlet channel and an air outlet channel, the inlet end of the air inlet channel is communicated with the air inlet, the outlet end of the air inlet channel is connected to the control valve, the inlet end of the air outlet channel is connected to the control valve, the outlet end of the air outlet channel is communicated with the first air chamber, the control valve controls the on-off of the air inlet channel and the air outlet channel to control the on-off of the first valve.
As an improvement, the control valve comprises a control block, a control mechanism and a sealing piece, wherein the control mechanism is in sealing fit with the control block to form a second air chamber, and the second air chamber is respectively communicated with the outlet end of the air inlet channel and the inlet end of the air outlet channel; the control mechanism controls the sealing element to form a second valve in sealing fit with the inlet end of the air outlet channel, when the control mechanism controls the sealing element to move to open the second valve, the air inlet channel is communicated with the air outlet channel, the air inlet is communicated with the second air chamber, the first piston moves to open the first valve, and the second air chamber forms the second valve in sealing fit with the inlet end of the air outlet channel through the sealing element by the improvement, so that the sealing element can be controlled by the control mechanism to move, and the opening and closing of the second valve can be controlled rapidly.
As an improvement, the manual device comprises a connecting press cap and a second piston, a second movable cavity and a connecting channel are formed in the connecting press cap, and the second movable cavity is connected with the air outlet channel through the connecting channel; the control block is internally provided with a cavity, the cavity is communicated with the air inlet channel, the cavity is communicated with the second movable cavity, the second piston is connected with the handle, the second piston is movably arranged in the second movable cavity and used for controlling the on-off of the air outlet channel and the cavity, the on-off of the air outlet channel and the cavity is controlled through the movement of the second piston through the improvement, so that the air inlet channel and the air outlet channel are also communicated in the unopened state of the second valve through the intervention of the second piston, and the handle is connected with the second piston, so that the selector valve can still be opened under the condition of failure of the controllable valve through manual intervention.
As an improvement, the manual device further comprises a first sealing ring and a first spring, wherein the first spring is fixedly arranged at the end part of the second piston, a limiting hole is formed in the second movable cavity, the second movable cavity is communicated with the connecting channel through the limiting hole, the first sealing ring is in sealing fit with the limiting hole to form a third valve, and the second piston is used for controlling the opening and closing of the third valve; one end of the first spring is connected to the inner wall of the cavity, the other end of the first spring is connected to the second piston, and through the improvement, the first sealing ring is in sealing fit with the limiting hole to form a third valve, so that the sealing performance can be effectively improved, the first spring can automatically reset the second piston after moving the second piston through the handle, the limiting hole can be in sealing fit with the first sealing ring, and the limiting moving distance of the second piston can be limited, so that the second piston is prevented from being separated from the using position.
The manual device is characterized by further comprising a socket, a spliced cap, a limiting pin and a second spring, wherein the socket is pressed by the spliced cap and screwed on the connecting and pressing cap, the handle is movably arranged in the socket, a travel groove is formed in the handle, the limiting pin is fixed on the socket and penetrates through the travel groove to limit the limit movement position of the handle, the second spring is abutted between the handle seat and the connecting and pressing cap, so that the handle is located at the limit movement position in a normal state, and the manual device is installed through the socket and the spliced cap through the improvement, so that the handle can be effectively connected to the second piston, and the position of the handle can be automatically reset after the second piston is moved through the handle.
As an improvement, the control mechanism comprises an electromagnet, the sealing element is fixedly arranged at the end part of the electromagnet, and the electromagnet moves through a movable iron core in the electromagnet to control the opening and closing of the second valve; the electromagnetic control mode of the electromagnet is simple and convenient to control and sensitive, the opening efficiency of the selector valve can be effectively improved, and the sealing performance can be improved by the first sealing ring, so that air leakage is avoided.
As an improvement, the valve mechanism further comprises an air inlet pressing cap, the air inlet pressing cap is detachably arranged in the air inlet, the number of the air inlet channels is two, the two air inlet channels are respectively arranged in the air inlet pressing cap and the valve body, and the two air inlet channels are mutually communicated, through the improvement, the air inlet pressing cap is detachably arranged, the installation of the first piston can be facilitated, and the air inlet pressing cap and the air inlet channels on the valve are spliced, so that the valve body does not need to be provided with the bent air inlet channels, the structure is simplified, and the sealing performance can be improved.
As an improvement, the valve mechanism further comprises a third spring, the inner wall of the air inlet pressure cap protrudes inwards to form an installation part, one end of the third spring is connected with the installation part, the other end of the third spring is connected with the end part of the first piston, and through the improvement, the third spring can enable the first piston to automatically reset after moving so as to be used next time.
As an improvement, the valve mechanism further comprises a sealing gasket, a first screw and a second screw, wherein the sealing gasket is fixed on the sealing part through the first screw, and the sealing gasket is in sealing fit with the first piston to form the first valve; the valve body is further provided with an air vent so that the first piston moves more flexibly, the second screw is arranged in the air vent so as to prevent sundries from entering the valve body, through the improvement, the sealing gasket is detachably arranged so as to facilitate replacement of the sealing gasket, the first screw is used for fixing, the second screw can prevent sundries from entering the air vent, and the air vent is respectively connected between the valve body and the first piston, so that the first piston moves more flexibly.
Drawings
FIG. 1 is a schematic cross-sectional view of the overall structure of the valve body of the present application;
FIG. 2 is a schematic cross-sectional view of the overall structure of the control valve of the present application;
FIG. 3 is an enlarged schematic view of a portion of FIG. 1A;
FIG. 4 is an enlarged partial schematic view of B in FIG. 1;
FIG. 5 is an enlarged partial schematic view of FIG. 2C;
fig. 6 is a schematic diagram of the position distribution of the air inlet channel and the air outlet channel in the present application.
In the figure: 1. a valve body; 11. an air inlet; 12. an air outlet; 13. a first movable chamber; 14. a first air chamber; 15. an air intake passage; 16. an air outlet channel; 17. ventilation holes; 18. a second air chamber; 21. the air outlet presses the cap; 211. a sealing part; 212. a sealing gasket; 213. a first screw; 22. a first piston; 221. a control unit; 23. a retainer ring; 24. the air inlet presses the cap; 241. a mounting part; 25. a third spring; 26. a second screw; 3. a control valve; 31. a control block; 311. a cavity; 32. a control mechanism; 321. an electromagnet; 322. a seal; 323. a second seal ring; 4. a manual device; 41. a handle; 42. connecting a pressing cap; 421. a second movable chamber; 4211. a limiting hole; 422. a connection channel; 43. a second piston; 44. a first seal ring; 45. a first spring; 46. a socket; 47. assembling caps; 48. a limiting pin; 49. and a second spring.
Detailed Description
The present application will be further described with reference to the following 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 words such as "center", "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., the azimuth and the positional relationship are based on the azimuth or the positional relationship shown in the drawings, only for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and should not be construed as limiting the specific protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and in the claims 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, 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 but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The present application provides a selector valve, as shown in fig. 1-6, comprising: the valve body 1 is provided with an air inlet 11, an air outlet 12 and a first movable cavity 13, and the air inlet 11 is communicated with an air inlet channel 15; the valve mechanism comprises an air outlet 12 pressing cap and a first piston 22, the air outlet 12 pressing cap is detachably connected in the air outlet 12, the air outlet 12 pressing cap comprises a sealing part 211, the first piston 22 is movably arranged in the first movable cavity 13, the first piston 22 and the sealing part 211 are in sealing fit to form a first valve, and the first valve controls the on-off of the air outlet 12 and the air inlet 11; a control valve 3 fixedly connected to the valve body 1, the control valve 3 being used for controlling the movement of the first piston 22; and a manual device 4 comprising a handle 41, the handle 41 being movable by the first piston 22 to open the first valve.
Preferably, as shown in fig. 1, the valve mechanism further comprises a sealing gasket 212, a first screw 213 and a second screw 26, wherein the sealing gasket 212 is fixed on the sealing part 211 through the first screw 213, and the sealing gasket 212 is in sealing fit with the first piston 22 to form a first valve; the valve body 1 is also provided with an air vent 17 to enable the first piston 22 to move more flexibly, and the air vent 17 and the second screw 26 are arranged in the air vent 17 to prevent sundries from entering the valve body 1.
Specifically, as shown in fig. 1-2, the valve mechanism further includes a retainer ring 23, the retainer ring 23 is screwed in the valve body 1, the first piston 22 is movably disposed in the retainer ring 23, the first piston 22 is provided with a control part 221, and the control part 221, the retainer ring 23 and the valve body 1 are hermetically matched to form a first air chamber 14; an air inlet channel 15 and an air outlet channel 16 are further formed in the valve body 1, the inlet end of the air inlet channel 15 is communicated with the air inlet 11, the outlet end of the air inlet channel 15 is connected to the control valve 3, the inlet end of the air outlet channel 16 is connected to the control valve 3, the outlet end of the air outlet channel is communicated with the first air chamber 14, and the control valve 3 controls the opening and closing of the first valve by controlling the on-off of the air inlet channel 15 and the air outlet channel 16.
Specifically, as shown in fig. 2, the control valve 3 includes a control block 31, a control mechanism 32 and a sealing member 322, the control mechanism 32 and the control block 31 are in sealing fit to form a second air chamber 18, and the second air chamber 18 is respectively communicated with an outlet end of the air inlet channel 15 and an inlet end of the air outlet channel 16; the control mechanism 32 controls the sealing member 322 to form a second valve in sealing fit with the inlet end of the air outlet channel 16, when the control mechanism 32 controls the sealing member 322 to move to open the second valve, the air inlet channel 15 is communicated with the air outlet channel 16, the air inlet 11 is communicated with the second air chamber 18, and the first piston 22 moves to open the first valve.
Specifically, as shown in fig. 5, the manual device 4 includes a connection pressing cap 42 and a second piston 43, a second movable cavity 421 and a connection channel 422 are provided in the connection pressing cap 42, and the second movable cavity 421 is connected with the air outlet channel 16 through the connection channel 422; the control block 31 is internally provided with a cavity 311, the cavity 311 is communicated with the air inlet channel 15, the cavity 311 is communicated with the second movable cavity 421, the second piston 43 is connected with the handle 41, the second piston 43 is movably arranged in the second movable cavity 421, and the second piston 43 is used for controlling the on-off of the air outlet channel 16 and the cavity 311.
Specifically, as shown in fig. 2 and 5, the manual device 4 further includes a first sealing ring 44 and a first spring 45, the first spring 45 is fixedly arranged at the end of the second piston 43, a limiting hole 4211 is formed in the second movable cavity 421, the second movable cavity 421 is communicated with the connecting channel 422 through the limiting hole 4211, the first sealing ring 44 and the limiting hole 4211 are in sealing fit to form a third valve, and the second piston 43 is used for controlling the opening and closing of the third valve; one end of the first spring 45 is connected to the inner wall of the cavity 311, and the other end is connected to the second piston 43.
Specifically, as shown in fig. 2, the manual device 4 further includes a socket 46, a cap assembly 47, a limiting pin 48 and a second spring 49, where the socket 46 is pressed by the cap assembly 47 and screwed on the connection cap assembly 42, the handle 41 is movably disposed in the socket 46, a travel slot is formed on the handle 41, the limiting pin 48 is fixed on the socket 46 and passes through the travel slot to limit the limit movement position of the handle 41, and the second spring 49 is abutted between the seat of the handle 41 and the connection cap assembly 42, so that the handle 41 is located at the limit movement position in a normal state.
Specifically, as shown in fig. 2 and 5, the control mechanism 32 includes an electromagnet 321, a sealing member 322 is fixedly arranged at the end of the electromagnet 321, and the electromagnet 321 moves through a movable iron core therein to control the opening and closing of the second valve; the outer edge of the connecting part of the control valve 3 and the valve body 1 is provided with a second sealing ring 323.
Specifically, as shown in fig. 4, the valve mechanism further includes an air inlet 11 pressing cap, the air inlet 11 pressing cap is detachably disposed in the air inlet 11, the number of the air inlet channels 15 is two, the two air inlet channels 15 are respectively disposed in the air inlet 11 pressing cap and the valve body 1, and the two air inlet channels 15 are mutually communicated.
Specifically, as shown in fig. 1, the shutter mechanism further includes a third spring 25, the inner wall of the pressure cap of the air inlet 11 protrudes inward to form a mounting portion 241, one end of the third spring 25 is connected to the mounting portion 241, and the other end is connected to the end of the first piston 22.
The working principle of the application is as follows: the selector valve is connected to the same pipeline as the valve inlet and outlet, and the electromagnet 321 on the selector valve is connected to the power supply. When the fire extinguishing device is needed, the electromagnet 321 is powered on, the valve (electric) is opened by the action of the movable iron core on the electromagnet 321, meanwhile, fire extinguishing gas enters the air inlet channel 15 from the air inlet 11 of the selection valve, flows to the air outlet channel 16 to the first air chamber 14 through the second valve (electric), after the gas pressure in the first air chamber 14 rises, the first piston 22 moves to the right, and the valve of the selection valve is opened. Because the first air chamber 14, the air outlet channel 16, the air inlet channel 15 and the second air chamber 18 are communicated, when the fire extinguishing gas in the pipeline is sprayed, the gas pressure in the air chamber is eliminated, and the first piston 22 pushes the first piston 22 to move left to close the selector valve under the action of the spring force of the third spring 25; at the same time, the electromagnet 321 turns off the power supply, and the movable iron core acts to turn off the valve (electric).
When the control valve 3 is not operated accidentally, the handle 41 can be pushed, so that the handle 41 pushes the second piston 43 to move right, and the first sealing ring 44 is separated from the limiting hole 4211, so that the second valve is opened. The fire extinguishing gas can enter the gas outlet channel 16 from the gas inlet 11, the gas inlet channel 15 and the cavity 311 through the second movable cavity 421 and the connecting channel 422 and flow to the first gas chamber 14, so that the first piston 22 moves to the right, and the selector valve is opened.
Because the first air chamber 14, the air outlet channel 16, the air inlet channel 15 and the air outlet 12 are communicated with the air inlet 11, when the fire extinguishing gas in the pipeline is sprayed, the pressure of the gas in the air chamber is eliminated, the second piston 43 resets to close the third valve under the action of the first spring 45, and the handle 41 resets under the action of the second spring 49.
The solenoid 321 of the selector valve actuator of the present application has two valves (electrically operated) that are operable individually and simultaneously.
The foregoing has outlined the basic principles, features, and advantages of the present application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present application, and 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 the application is defined by the appended claims and equivalents thereof.

Claims (10)

1. A selector valve, comprising:
the valve body is internally provided with an air inlet, an air outlet and a first movable cavity, and the air inlet is communicated with the air inlet channel;
the valve mechanism comprises an air outlet pressing cap and a first piston, the air outlet pressing cap is detachably connected in the air outlet, the air outlet pressing cap comprises a sealing part, the first piston is movably arranged in the first movable cavity, the first piston is in sealing fit with the sealing part to form a first valve, and the first valve controls the on-off of the air outlet and the air inlet;
the control valve is fixedly connected to the valve body and is used for controlling the first piston to move; and
the manual device comprises a handle, and the handle can drive the first piston to move so as to open the first valve.
2. The selector valve of claim 1, wherein: the valve mechanism further comprises a check ring, the check ring is in threaded fit with the valve body, the first piston is movably arranged in the check ring, a control part is arranged on the first piston, and the control part, the check ring and the valve body are in sealed fit to form a first air chamber;
the valve body is internally provided with an air inlet channel and an air outlet channel, the inlet end of the air inlet channel is communicated with the air inlet, the outlet end of the air outlet channel is connected to the control valve, the inlet end of the air outlet channel is connected to the control valve, the outlet end of the air outlet channel is communicated with the first air chamber, and the control valve controls the opening and closing of the first valve by controlling the on-off of the air inlet channel and the air outlet channel.
3. The selector valve of claim 2, wherein: the control valve comprises a control block, a control mechanism and a sealing piece, the control mechanism is in sealing fit with the control block to form a second air chamber, and the second air chamber is respectively communicated with the outlet end of the air inlet channel and the inlet end of the air outlet channel;
the control mechanism controls the sealing element to be in sealing fit with the inlet end of the air outlet channel to form a second valve, when the control mechanism controls the sealing element to move to open the second valve, the air inlet channel is communicated with the air outlet channel, the air inlet is communicated with the second air chamber, and the first piston moves to open the first valve.
4. A selector valve as set forth in claim 3, wherein: the manual device comprises a connecting press cap and a second piston, a second movable cavity and a connecting channel are formed in the connecting press cap, and the second movable cavity is connected with the air outlet channel through the connecting channel;
the control block is internally provided with a cavity, the cavity is communicated with the air inlet channel, the cavity is communicated with the second movable cavity, the second piston is connected with the handle, the second piston is movably arranged in the second movable cavity, and the second piston is used for controlling the on-off of the air outlet channel and the cavity.
5. The selector valve of claim 4, wherein: the manual device further comprises a first sealing ring and a first spring, the first spring is fixedly arranged at the end part of the second piston, a limiting hole is formed in the second movable cavity, the second movable cavity is communicated with the connecting channel through the limiting hole, the first sealing ring is in sealing fit with the limiting hole to form a third valve, and the second piston is used for controlling the opening and closing of the third valve; one end of the first spring is connected to the inner wall of the cavity, and the other end of the first spring is connected to the second piston.
6. The selector valve of claim 5, wherein: the manual device further comprises a socket, a spliced cap, a limiting pin and a second spring, the socket is pressed by the spliced cap and screwed on the connecting and pressing cap, the handle is movably arranged in the socket, a travel groove is formed in the handle, the limiting pin is fixed on the socket and penetrates through the travel groove to limit the limit movement position of the handle, and the second spring is propped between the handle seat and the connecting and pressing cap, so that the handle is located at the limit movement position in a normal state.
7. A selector valve as set forth in claim 3, wherein: the control mechanism comprises an electromagnet, the sealing element is fixedly arranged at the end part of the electromagnet, and the electromagnet moves through a movable iron core in the electromagnet to control the opening and closing of the second valve; and a second sealing ring is arranged at the outer edge of the connecting part of the control valve and the valve body.
8. The selector valve of claim 2, wherein: the valve mechanism further comprises an air inlet pressing cap, the air inlet pressing cap is detachably arranged in the air inlet, the number of the air inlet channels is two, the two air inlet channels are respectively arranged in the air inlet pressing cap and the valve body, and the two air inlet channels are mutually communicated.
9. The selector valve of claim 8, wherein: the valve mechanism further comprises a third spring, the inner wall of the air inlet pressure cap protrudes inwards to form an installation part, one end of the third spring is connected with the installation part, and the other end of the third spring is connected with the end part of the first piston.
10. The selector valve of any of claims 1-9 wherein: the valve mechanism further comprises a sealing gasket, a first screw and a second screw, wherein the sealing gasket is fixed on the sealing part through the first screw, and the sealing gasket is in sealing fit with the first piston to form the first valve; the valve body is also provided with an air vent so that the first piston moves more flexibly, and the second screw is arranged in the air vent so as to prevent sundries from entering the valve body.
CN202310820878.9A 2023-07-05 2023-07-05 selector valve Pending CN116753341A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310820878.9A CN116753341A (en) 2023-07-05 2023-07-05 selector valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310820878.9A CN116753341A (en) 2023-07-05 2023-07-05 selector valve

Publications (1)

Publication Number Publication Date
CN116753341A true CN116753341A (en) 2023-09-15

Family

ID=87960864

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310820878.9A Pending CN116753341A (en) 2023-07-05 2023-07-05 selector valve

Country Status (1)

Country Link
CN (1) CN116753341A (en)

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