CN110657244A - Pneumatic control discharge valve - Google Patents
Pneumatic control discharge valve Download PDFInfo
- Publication number
- CN110657244A CN110657244A CN201910902084.0A CN201910902084A CN110657244A CN 110657244 A CN110657244 A CN 110657244A CN 201910902084 A CN201910902084 A CN 201910902084A CN 110657244 A CN110657244 A CN 110657244A
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- Prior art keywords
- valve
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- main
- hole
- auxiliary
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Classifications
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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
- 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
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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
- 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
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/44—Details of seats or valve members of double-seat valves
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/14—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves
- F16K31/143—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves the fluid acting on a piston
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/52—Mechanical actuating means with crank, eccentric, or cam
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
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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
- F16K39/00—Devices for relieving the pressure on the sealing faces
- F16K39/02—Devices for relieving the pressure on the sealing faces for lift valves
- F16K39/024—Devices for relieving the pressure on the sealing faces for lift valves using an auxiliary valve on the main valve
Abstract
The invention discloses a pneumatic control discharge valve, which comprises: the valve body is internally provided with an inlet channel and an outlet channel which are separated by a partition plate, the partition plate is provided with a main valve hole, and the inlet channel is provided with a main mounting cavity; the main valve disc can move up and down and is arranged in the main mounting cavity and can seal the main valve hole; the outer side wall of the lower part of the main valve disc is tightly attached to the inner side wall of the main mounting cavity, an auxiliary mounting cavity is arranged in the main valve disc, an auxiliary valve hole is formed in the top of the main valve disc, and the auxiliary valve hole is communicated with the auxiliary mounting cavity; the outer side wall of the main valve disc is provided with a first inlet; the auxiliary valve disc can move up and down and is arranged in the auxiliary mounting cavity and can seal the auxiliary valve hole; the piston piece is arranged on the valve body in a vertically movable mode, and the valve body is provided with a piston cavity and a second inlet; when the piston piece moves upwards or downwards, the piston piece can drive the auxiliary valve disc to synchronously move downwards to open the auxiliary valve hole; and an elastic device. The invention can reduce the volume, meet the existing fire safety requirements and is safer and more reliable.
Description
Technical Field
The invention relates to the field of fire fighting facilities, in particular to a pneumatic control discharge valve.
Background
The discharge valve is generally applied to a gas fire extinguishing system in the fire fighting field and is an important control device for controlling the distribution of gas to extinguish fire and selecting a fire extinguishing area. The existing discharge valve is usually started by an external cylinder, has larger volume, and needs to be opened by flushing a valve core by the pressure of fire extinguishing agent in a fire extinguishing system after being started, which is inconsistent with the requirement of opening the discharge valve to realize smooth valve passage, in addition, the pressure requirement of the flushing valve core on the fire extinguishing agent is higher, the application range is narrower, faults such as abnormal opening and the like are easy to occur, the fire extinguishing effect is influenced, and potential safety hazards exist.
Disclosure of Invention
The invention aims to solve at least one technical problem in the prior art and provide a more reliable pneumatic control discharge valve which can reduce the volume and meet the existing fire safety requirements.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
an air controlled dispensing valve comprising:
the valve comprises a valve body, a valve body and a valve body, wherein an inlet channel and an outlet channel are arranged in the valve body, the inlet channel and the outlet channel are separated by a partition plate in the valve body, a main valve hole is formed in the partition plate, and the inlet channel is provided with a main mounting cavity positioned below the partition plate;
the main valve disc is arranged in the main mounting cavity in a vertically movable mode and can be pressed on the bottom surface of the partition plate upwards to close the main valve hole; the outer side wall of the lower part of the main valve disc is tightly attached to the inner side wall of the main mounting cavity, an auxiliary mounting cavity is arranged in the main valve disc, an auxiliary valve hole aligned with the main valve hole is formed in the top of the main valve disc, and the auxiliary valve hole is communicated with the auxiliary mounting cavity; the outer side wall of the main valve disc is provided with a first inlet for communicating the auxiliary installation cavity with the inlet channel;
the auxiliary valve disc is arranged in the auxiliary mounting cavity in a vertically movable mode and can be pressed on the upper inner wall of the auxiliary mounting cavity upwards to close the auxiliary valve hole;
the piston piece is arranged on the valve body in a vertically movable mode, and the valve body is provided with a piston cavity matched with the piston piece and a second inlet communicated with the piston cavity; when the piston piece moves upwards or downwards, the auxiliary valve disc can be driven to synchronously move downwards to open the auxiliary valve hole;
and the elastic device is used for driving the piston part and/or the auxiliary valve disc to move and reset so that the auxiliary valve disc closes the auxiliary valve hole.
Preferably, the elastic device comprises a first elastic member arranged between the valve body and the auxiliary valve disc, and the first elastic member is used for driving the auxiliary valve disc to move upwards and return.
Preferably, the elastic device comprises a second elastic member arranged between the piston member and the valve body, and the second elastic member is used for driving the piston member to move and reset.
Preferably, the piston member is located at the upper part of the valve body, a pressure lever is arranged in the valve body and can move up and down, the upper part of the pressure lever is arranged on the piston member or abutted against the piston member, the lower part of the pressure lever is arranged on the sub-valve disc or abutted against the sub-valve disc, and when the piston member moves downwards, the pressure lever can push the sub-valve disc to move downwards.
Preferably, the pressure rod passes through the auxiliary valve hole.
Preferably, the valve body is provided with a manual control device, and the manual control device is used for driving the piston member or the auxiliary valve disc to move so as to open the auxiliary valve hole.
Preferably, the manual control device comprises a handle pivoted on the valve body, the handle is provided with an eccentric part, the outer edge of the eccentric part is in sliding abutting joint with the piston part, and the handle can push the piston part to move through the eccentric part to open the auxiliary valve hole when rotating.
Preferably, the valve body is provided with a switch device, the auxiliary valve disc moves downwards to open the auxiliary valve hole and then can trigger the switch device, and the switch device is used for controlling the opening of an external alarm device.
Preferably, the bottom of the main valve disc is provided with a through hole communicated with the sub-installation cavity, the lower part of the sub-valve disc passes through the through hole and extends out of the main valve disc, and the switching device can be triggered by the lower part of the sub-valve disc.
Preferably, the base of the partition has an annular first projection surrounding the main valve bore, the main valve disk has a sealing surface, the main valve disk can be pressed against the base of the first projection by the sealing surface to close the main valve bore, and the sealing surface extends laterally outside the first projection.
The invention has the beneficial effects that: in the invention, in a non-working state, the elastic device can press the auxiliary valve disc on the upper inner wall of the auxiliary mounting cavity to seal the auxiliary valve hole and press the main valve disc on the partition plate to seal the main valve hole, thereby separating the inlet channel from the outlet channel, after the working state is reached, the control gas which is introduced into the piston cavity from the second inlet from the outside can push the piston part to move, and then the auxiliary valve disc is driven to move downwards to open the auxiliary valve hole, so that the inlet channel can be communicated with the outlet channel through the first inlet, the auxiliary mounting cavity and the auxiliary valve hole, thereby realizing one-time opening, meeting the current fire safety requirement, and then, after the fire extinguishing agent enters the outlet channel from the first inlet, the auxiliary mounting cavity and the auxiliary valve hole, the pressure of the fire extinguishing agent can be utilized to apply thrust to the top surface of the main valve disc, so that the main valve disc moves downwards to open the main valve hole, realizing secondary opening, and reducing the, and even if the main valve disc cannot be opened due to failure, the fire extinguishing agent can still enter the discharge passage through the auxiliary valve hole and then be discharged to perform fire extinguishing operation, so that the fire extinguishing valve is safer and more reliable.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic cross-sectional view of a preferred embodiment of the present invention in a closed position;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
FIG. 3 is a schematic cross-sectional view of the preferred embodiment of the present invention in an open position;
FIG. 4 is a schematic cross-sectional view of the preferred embodiment of the present invention in a secondary open position;
fig. 5 is a partially enlarged view of a portion B in fig. 4.
Detailed Description
Referring to fig. 1 to 5, a preferred embodiment of the present invention, an air control apply valve, includes: the valve comprises a valve body 10, wherein an inlet channel 11 and an outlet channel 12 are arranged in the valve body 10, the inlet channel 11 and the outlet channel 12 are separated by a partition plate 13 in the valve body 10, a main valve hole 14 is formed in the partition plate 13, and the inlet channel 11 is provided with a main mounting cavity 111 positioned below the partition plate 13; a main valve disk 20 which is arranged in the main mounting cavity 111 in a vertically movable manner and can be pressed upwards against the bottom surface of the partition 13 to close the main valve hole 14; the lower outer side wall of the main valve disk 20 is tightly attached to the inner side wall of the main mounting cavity 111, a sub mounting cavity 21 is arranged in the main valve disk 20, the top of the main valve disk 20 is provided with a sub valve hole 22 aligned with the main valve hole 14, and the sub valve hole 22 is communicated with the sub mounting cavity 21; a first inlet 23 for communicating the sub-mount chamber 21 with the inlet passage 11 is provided on the outer side wall of the main valve disc 20; the auxiliary valve disc 30 is arranged in the auxiliary mounting cavity 21 in a vertically movable mode and can be pressed on the upper inner wall of the auxiliary mounting cavity 21 upwards to close the auxiliary valve hole 22; the piston piece 41 is arranged on the valve body 10 in a vertically movable mode, and the valve body 10 is provided with a piston cavity 42 matched with the piston piece 41 and a second inlet 43 communicated with the piston cavity 42; when the piston piece 41 moves upwards or downwards, the auxiliary valve disc 30 can be driven to synchronously move downwards to open the auxiliary valve hole 22; an elastic device for driving the piston member 41 and/or the auxiliary valve disk 30 to move and reset so that the auxiliary valve disk 30 closes the auxiliary valve hole 22, wherein in a non-working state, the elastic device can press the auxiliary valve disk 30 against the upper inner wall of the auxiliary mounting cavity 21 to close the auxiliary valve hole 22, and press the main valve disk 20 against the partition plate 13 to close the main valve hole 14, thereby separating the inlet channel 11 and the outlet channel 12, after entering a working state, control gas introduced into the piston cavity 42 from the second inlet 43 from the outside can push the piston member 41 to move, and then drive the auxiliary valve disk 30 to move downwards to open the auxiliary valve hole 22, so that the inlet channel 11 can be communicated with the outlet channel 12 through the first inlet 23, the auxiliary mounting cavity 21 and the auxiliary valve hole 22, so as to realize one-time opening, and meet the current fire safety requirements, and then, after the fire extinguishing agent enters the outlet channel 12 from the first inlet 23, the auxiliary mounting cavity 21 and the auxiliary valve hole 22, the pressure of the main valve disk 20 can be utilized to apply thrust to the top surface of the main valve disk 20, so that the main valve disk 20 moves downwards to open the main valve hole 14, secondary opening is realized, the requirement on the pressure of fire extinguishing agents can be reduced, and even if the main valve disk 20 fails and cannot be opened, the fire extinguishing agents can still enter the discharge channel 12 through the auxiliary valve hole 22 and are discharged for fire extinguishing operation, and the safety and the reliability are higher.
As a preferred embodiment of the present invention, it may also have the following additional technical features:
the elastic means comprises a first elastic member 51 disposed between the valve body 10 and the sub-valve disc 30, the first elastic member 51 is used for driving the sub-valve disc 30 to move upwards and return, and the first elastic member 51 directly acts on the sub-valve disc 30, which is more reliable and also helps to simplify the connection structure or transmission structure between the sub-valve disc 30 and the piston member 41. In this embodiment, the elastic device further includes a second elastic element 52 disposed between the piston element 41 and the valve body 10, and the second elastic element 52 is used to drive the piston element 41 to move and return, so that the reliability of the present invention can be improved, the requirement for the magnitude of the elastic force of the first elastic element 51 and the second elastic element 52 can be reduced, and the product cost can be reduced. In this embodiment, the first elastic member 51 and the second elastic member 52 both adopt springs, so that the structure is simple and reliable, and the installation and the use are convenient, and in practical application, the first elastic member 51 and the second elastic member 52 can also flexibly select other common elastic structures such as an elastic pull rope according to needs, but are not limited thereto; in practical applications, the restoring operation may be performed only by the first elastic member 51 or the second elastic member 52.
In this embodiment, the piston 41 is located on the upper portion of the valve body 10, a pressure lever 44 is disposed in the valve body 10 and can move up and down, the upper portion of the pressure lever 44 is disposed on the piston 41, the lower portion of the pressure lever is abutted to the sub-valve disc 30, when the piston 41 moves down, the sub-valve disc 30 can be pushed by the pressure lever 44 to move down, the structure is simple, the pressure lever 44 does not need to be connected to the piston 41, the processing and the assembly are convenient, and, in use, even if the supply of control gas fails, the piston 41 loses the driving force and moves back and reset without driving the sub-valve disc 30 to move up, the sub-valve disc 30 can still be kept in an open state by the pressure of the fire extinguishing agent, the normal operation of the. Of course, in practical applications, the upper portion of the pressing rod 44 may only abut against the piston member 41, or the lower portion of the pressing rod 44 may be connected to the sub-valve disc 30, but is not limited thereto.
In practical applications, the position of the piston member 41 and the transmission structure between the piston member 41 and the sub-valve disc 30 can be flexibly adjusted according to needs, for example, the piston member 41 can also be disposed at the bottom of the valve body 10, and the sub-valve disc 30 is pulled to move downward when moving downward, or the piston member 41 can also be connected to the piston member 41 through a transmission mechanism such as a pull rope or a gear, so that the sub-valve disc 30 is driven to move downward when the piston member 41 moves upward, so that there are various commonly used implementation manners.
In this embodiment, the pressure lever 44 passes through the sub-valve hole 22, which helps to simplify the structure, facilitate the arrangement of the pressure lever 44, and facilitate the processing and assembly.
The valve body 10 is provided with a manual control device, the manual control device is used for driving the piston member 41 or the auxiliary valve disc 30 to move so as to open the auxiliary valve hole 22, the manual control device is often used as an emergency means, and when the auxiliary valve disc 30 has a fault such as jamming, the manual control device can be used for pushing the auxiliary valve disc 30 to move downwards so as to forcibly open the auxiliary valve hole 22, so that the safety and the reliability are higher.
In this embodiment, the manual control device includes a handle 60 pivoted on the valve body 10, the handle 60 has an eccentric portion 61, the outer edge of the eccentric portion 61 is in sliding contact with the piston member 41, and the handle 60 can push the piston member 41 to move to open the sub-valve hole 22 through the eccentric portion 61 when rotating. Of course, in practical applications, the manual control device may also adopt other common manual control structures such as a screw rod mechanism driven by a hand wheel, a pull rope, etc., and may also adopt a mode of directly driving the sub-valve disc 30 to move, which is not limited to this.
The valve body 10 is provided with a switch device, the auxiliary valve disc 30 can be triggered after moving downwards to open the auxiliary valve hole 22, and the switch device is used for controlling the opening of an external alarm device, so that a person in an operation range can be informed to avoid when the fire extinguishing operation is started or is ready to be started, and the person is prevented from being damaged.
The bottom of the main valve disc 20 is provided with a through hole 29 communicated with the auxiliary mounting cavity 21, the lower part of the auxiliary valve disc 30 extends out of the main valve disc 20 through the through hole 29, and the switching device can be triggered by the lower part of the auxiliary valve disc 30, so that the processing and the assembly are convenient. In this embodiment, the switching device includes a travel switch 71 and a switch box 72 disposed at the bottom of the valve body 10, the bottom of the auxiliary valve disc 30 is pressed against the movable portion of the travel switch 71, when the auxiliary valve disc 30 moves downward to open the auxiliary valve hole 22, the movable portion of the travel switch 71 can be pushed to move downward to start the travel switch 71 and further start the switch box 72, the travel switch 71 is provided with a third elastic member 53 for pushing the movable portion of the travel switch 71 to move upward to reset, the structure is simple and reliable, the assembly and the use are convenient, and the third elastic member 53 can be selected from common elastic structures such as a spring, an elastic pull rope and the like; of course, in practical applications, the switch device may also be a contact switch or other common switch structure, but is not limited thereto.
In this embodiment, the bottom surface of the partition 13 has a first annular boss 131 surrounding the main valve hole 14, the main valve disk 20 has a sealing surface, the main valve disk 20 can be pressed against the bottom surface of the first boss 131 through the sealing surface to close the main valve hole 14, and the sealing surface extends laterally to the outside of the first boss 131, so that the downward pressure-receiving surface of the main valve disk 20 can be increased, the fire extinguishing agent can more easily push the main valve disk 20 to move downward to open the main valve hole 14, the reliability is higher, and the influence on the sealing performance caused by the uneven contact surface due to machining errors can be reduced.
In this embodiment, the upper portion of the valve body 10 is provided with an accommodating chamber 15, the piston member 41 is disposed at the upper portion of the accommodating chamber 15 in a manner that it can move up and down, the piston chamber 42 is located above the accommodating chamber 15 and is communicated with the accommodating chamber 15, the second inlet 43 is located at the side of the piston chamber 42, the accommodating chamber 15 is provided with a first guide sleeve 16 matched with the pressure rod 44, and the pressure rod 44 penetrates through the first guide sleeve 16 to position the up and down movement of the pressure rod 44; the bottom of the accommodating chamber 15 communicates with the discharge passage 12 through a first through hole in which a first seal member 17 is provided, through which the pressure rod 44 extends into the sub-valve hole 22 via the discharge passage 12 and the main valve hole 14 to abut against the sub-valve disc 30, the first seal member 17 preventing the fire extinguishing agent in the discharge passage 12 from leaking into the accommodating chamber 15; the main valve disk 20 includes a base 24, a second sealing member 25 disposed in a groove on the surface of the base 24, and a pressing member 26 for pressing the second sealing member 25 against the base 24, the pressing member 26 being screwed to the base 24 and penetrated through the sub valve hole 22, a sub mounting chamber 21 being disposed at a lower portion of the base 24 and extending downward to penetrate a lower end of the base 24, a second guide sleeve 27 being screwed to a lower portion of the sub mounting chamber 21, an inner hole of the second guide sleeve 27 being used as a through hole 29, a lower portion of the sub valve disk 30 being rod-shaped and penetrating the second guide sleeve 27 to guide the up and down movement of the sub valve disk 30, and the sub valve disk 30 being capable of moving down to press against a top surface of the second guide sleeve 27 to position a moving distance of the sub valve disk 30, a second boss 28 surrounding the sub valve hole 22 being provided on an upper inner wall of the sub mounting chamber 21, a fifth sealing member 31 being provided on a top of the sub valve disk 30, the sealing performance can be improved; a second through hole is provided in the bottom of the valve body 10, through which the lower portion of the sub-valve plate 30 passes to abut against the stroke switch 71, and a third seal 18 for preventing leakage is also provided in the second through hole; the top of the piston member 41 is provided with a push rod portion 45, the push rod portion 45 passes through a third through hole at the top of the valve body 10 so as to be capable of abutting against the eccentric portion 61 of the handle 60, and the fourth sealing member 19 is arranged in the third through hole. In addition, in the embodiment, the diameter of the upper section of the aligned portion of the pressure lever 44 and the first guide sleeve 16 is smaller than the diameter of the lower section, the diameter of the corresponding upper section guide hole of the first guide sleeve 16 is matched with the diameter of the smaller end of the pressure lever 44, and the diameter of the lower section guide hole is matched with the diameter of the larger end of the pressure lever 44, so that the smaller section of the pressure lever enters the lower section of the first guide sleeve 16 during the pressing process of the pressure lever 44, a certain gap is left between the outer wall of the pressure lever and the inner wall of the lower section guide hole of the first guide sleeve 16, the clamping of the pressure lever 44 caused by bending deformation or deflection can be effectively avoided, the reliability of the invention is ensured, and the occurrence rate of faults can be reduced.
The above additional technical features can be freely combined and used in superposition by those skilled in the art without conflict.
The above description is only a preferred embodiment of the present invention, and the technical solutions that achieve the objects of the present invention by basically the same means are all within the protection scope of the present invention.
Claims (10)
1. A pneumatically controlled dispensing valve, comprising:
the valve comprises a valve body (10), wherein an inlet channel (11) and an outlet channel (12) are arranged in the valve body (10), the inlet channel (11) and the outlet channel (12) are separated by a partition plate (13) in the valve body (10), a main valve hole (14) is formed in the partition plate (13), and the inlet channel (11) is provided with a main mounting cavity (111) located below the partition plate (13);
a main valve disk (20) which can move up and down and is arranged in the main mounting cavity (111) and can be pressed on the bottom surface of the partition plate (13) upwards to close the main valve hole (14); the lower outer side wall of the main valve disk (20) is tightly attached to the inner side wall of the main mounting cavity (111), a sub mounting cavity (21) is arranged in the main valve disk (20), the top of the main valve disk (20) is provided with a sub valve hole (22) aligned with the main valve hole (14), and the sub valve hole (22) is communicated with the sub mounting cavity (21); a first inlet (23) for communicating the auxiliary mounting cavity (21) with the inlet channel (11) is arranged on the outer side wall of the main valve disc (20);
the auxiliary valve disc (30) is arranged in the auxiliary mounting cavity (21) in a vertically movable mode and can be pressed on the upper inner wall of the auxiliary mounting cavity (21) upwards to close the auxiliary valve hole (22);
the piston piece (41) is arranged on the valve body (10) in a vertically movable mode, and a piston cavity (42) matched with the piston piece (41) and a second inlet (43) communicated with the piston cavity (42) are formed in the valve body (10); when the piston member (41) moves upwards or downwards, the piston member can drive the sub valve disc (30) to synchronously move downwards to open the sub valve hole (22);
and the elastic device is used for driving the piston piece (41) and/or the sub valve disc (30) to move and reset so that the sub valve disc (30) closes the sub valve hole (22).
2. An air controlled release valve according to claim 1, characterized in that the elastic means comprises a first elastic member (51) arranged between the valve body (10) and the sub valve disc (30), the first elastic member (51) being used for driving the sub valve disc (30) to move upwards and return.
3. An air controlled release valve according to claim 1 or 2, wherein the resilient means comprises a second resilient member (52) disposed between the piston member (41) and the valve body (10), the second resilient member (52) being adapted to urge the piston member (41) to move back.
4. An air controlled release valve according to claim 1, wherein the piston member (41) is located at the upper part of the valve body (10), a pressure rod (44) is arranged in the valve body (10) and can move up and down, the upper part of the pressure rod (44) is arranged on the piston member (41) or is abutted against the piston member (41), the lower part of the pressure rod (44) is arranged on the sub-valve disc (30) or is abutted against the sub-valve disc (30), and the piston member (41) can push the sub-valve disc (30) to move downwards through the pressure rod (44) when moving downwards.
5. An air control apply valve as claimed in claim 4, wherein said pressure rod (44) passes through said secondary valve bore (22).
6. An air controlled dispensing valve according to claim 1, wherein the valve body (10) is provided with manual control means for actuating the piston member (41) or the sub-valve disc (30) to move to open the sub-valve hole (22).
7. An air controlled dispensing valve according to claim 6, wherein said manual control means comprises a handle (60) pivotally mounted on the valve body (10), said handle (60) having an eccentric portion (61), the outer edge of said eccentric portion (61) slidably abutting against said piston member (41), said eccentric portion (61) being capable of pushing said piston member (41) to move to open said sub-valve opening (22) when the handle (60) is rotated.
8. An air control dispensing valve according to claim 1, characterized in that a switch device is arranged on the valve body (10), the sub valve disc (30) can be triggered after moving downwards to open the sub valve hole (22), and the switch device is used for controlling the opening of an external alarm device.
9. An air control apply valve according to claim 8, wherein the bottom of the main valve disk (20) is provided with a through hole (29) communicating with the sub-mounting chamber (21), the lower portion of the sub-valve disk (30) extends out of the main valve disk (20) through the through hole (29), and the switch means is capable of being triggered by the lower portion of the sub-valve disk (30).
10. A pneumatically controlled release valve according to claim 1, wherein the base of the diaphragm (13) has an annular first land (131) surrounding the main valve bore (14), the main valve disc (20) has a sealing surface by which the main valve disc (20) can be pressed against the base of the first land (131) to close the main valve bore (14), and the sealing surface extends laterally beyond the first land (131).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910902084.0A CN110657244A (en) | 2019-09-24 | 2019-09-24 | Pneumatic control discharge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910902084.0A CN110657244A (en) | 2019-09-24 | 2019-09-24 | Pneumatic control discharge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110657244A true CN110657244A (en) | 2020-01-07 |
Family
ID=69039185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910902084.0A Pending CN110657244A (en) | 2019-09-24 | 2019-09-24 | Pneumatic control discharge valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110657244A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022077920A1 (en) * | 2020-10-16 | 2022-04-21 | 江门市碧特旺五金制品有限公司 | Kitchen showerhead and kitchen faucet |
-
2019
- 2019-09-24 CN CN201910902084.0A patent/CN110657244A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022077920A1 (en) * | 2020-10-16 | 2022-04-21 | 江门市碧特旺五金制品有限公司 | Kitchen showerhead and kitchen faucet |
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