CN111396578A - Valve with maintenance function - Google Patents

Valve with maintenance function Download PDF

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Publication number
CN111396578A
CN111396578A CN201911274179.9A CN201911274179A CN111396578A CN 111396578 A CN111396578 A CN 111396578A CN 201911274179 A CN201911274179 A CN 201911274179A CN 111396578 A CN111396578 A CN 111396578A
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CN
China
Prior art keywords
piston
rod
hole
spring
connecting rod
Prior art date
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Granted
Application number
CN201911274179.9A
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Chinese (zh)
Other versions
CN111396578B (en
Inventor
陈巅
杨俊�
华明翔
何云庆
王锡均
华锡荣
黄清华
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Zhejiang Orientx Fire Safety Equipment Co ltd
Original Assignee
Zhejiang Orientx Fire Safety Equipment Co ltd
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Publication date
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Priority to CN201911274179.9A priority Critical patent/CN111396578B/en
Publication of CN111396578A publication Critical patent/CN111396578A/en
Application granted granted Critical
Publication of CN111396578B publication Critical patent/CN111396578B/en
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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
    • F16K1/36—Valve members
    • F16K1/38—Valve members of conical shape
    • F16K1/385—Valve members of conical shape contacting in the closed position, over a substantial axial length, a seat surface having the same inclination
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/62—Portable extinguishers which are permanently pressurised or pressurised immediately before use with a single permanently pressurised container
    • A62C13/64—Portable extinguishers which are permanently pressurised or pressurised immediately before use with a single permanently pressurised container the extinguishing material being released by means of a valve
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/76—Details or accessories
    • 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
    • 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
    • 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
    • F16K1/52—Means for additional adjustment of the rate of flow
    • 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
    • F16K13/00—Other constructional types of cut-off apparatus; Arrangements for cutting-off
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
    • 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
    • F16K31/53—Mechanical actuating means with toothed gearing
    • F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack
    • 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
    • F16K31/602—Pivoting levers, e.g. single-sided
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0647—Spindles or actuating means
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

The invention discloses a valve with a maintenance function, and relates to the technical field of fire extinguisher parts; including the valve body, the admission line, the gas outlet, the piston, the carrying handle, push down the handle, valve body one side is equipped with the access hole, access hole and admission line intercommunication, be equipped with the second piston rather than the adaptation in the access hole, be equipped with the spring in the access hole, the second piston has the push rod towards the outside one side rigid coupling of access hole, the top of valve body is equipped with the guide way, the bottom of guide way is equipped with the recess, be equipped with the depression bar in the guide way, the depression bar bottom is towards the piston bending type connecting rod, the downside of connecting rod is equipped with the second spring, the downside at the recess is connected to second spring bottom, the second spring top is connected on the connecting rod, the edge is equipped with the frustum on the piston, the admission line top is equipped with the tight slope in top with the frustum adaptation, under the effect of second spring, the frustum. The invention has convenient pressure adjustment and maintenance function.

Description

Valve with maintenance function
Technical Field
The invention belongs to the technical field of fire extinguisher parts, and particularly relates to a valve with an overhauling function.
Background
The valve is an important part in the fire extinguisher. When the fire extinguisher is produced, the fire extinguishing agent is filled in the bottle body firstly, and then the valve is screwed on, but sometimes the pressure in the bottle body is abnormal, and the condition that the pressure is too high or too low often appears, so that the quality of the fire extinguisher product is poor. At present, the valve is often required to be disassembled and then refilled for the situation, which is very troublesome, and the prior art does not have a maintenance function.
Disclosure of Invention
The invention aims to overcome the defect that the prior art does not have the maintenance function, and provides a valve with the maintenance function.
In order to achieve the purpose, the invention adopts the following technical scheme:
a valve with an overhauling function comprises a valve body, an air inlet pipeline positioned on the valve body, an air outlet positioned on the valve body, a piston positioned in the air inlet pipeline, a carrying handle fixedly connected to the valve body and a pressing handle rotationally connected to the valve body and used for controlling the piston, wherein an overhauling port is arranged on one side of the valve body and communicated with the air inlet pipeline, a second piston matched with the overhauling port is arranged in the overhauling port, the second piston is in a circular truncated cone shape, the end face with a small area of the second piston faces the inside of the overhauling port, a spring used for extruding the second piston to the outside of the overhauling port is arranged in the overhauling port, a push rod is fixedly connected to one side, facing the outside of the overhauling port, of the second piston, a guide groove is arranged at the top end of the valve body, a groove is arranged at the bottom end of the guide groove and positioned on one side of the top end of the air inlet pipeline, the downside of connecting rod is equipped with the second spring, the downside at the recess is connected to second spring bottom, second spring top is connected on the connecting rod, the upper edge of piston is equipped with the frustum, the admission line top be equipped with the tight slope in top of frustum adaptation, under the effect of second spring, the frustum top is tight on the tight slope in top, the depression bar top is rotated and is connected with the gyro wheel. When the pressure in the bottle is too high, the push rod is extruded, the push rod and the second piston move towards the inside of the access hole, the spring is shortened, at the moment, a gap is formed between the second piston and the inner side wall of the access hole, and a part of the pressure in the bottle is discharged from the gap, so that the pressure in the bottle returns to be normal. When the bottle internal pressure was low excessively, insert the refill head in the access hole, the refill head tip supports and leans on the push rod, the refill head is prior art, do not do here and expand, push rod and second piston move in towards the access hole, the spring shortens, at this moment, form the space between the inside wall of second piston and access hole, the filler comes out from the refill head and gets into in the bottle through the access hole, pressure risees, treat after pressure returns normally, extract the refill head, under the effect of spring, the second piston supports again and leans on the inside wall of access hole, realize automatically that sealed, whole process need not twist off the valve, it is very convenient to overhaul. When the pressing handle is pressed down, the roller is abutted against the pressing handle, and the roller rolls the lower side of the pressing handle, so that the friction force is reduced, and the use is labor-saving.
As preferred, be equipped with the through-hole that link up from top to bottom on the piston, the through-hole middle part is equipped with spherical chamber, be equipped with the ball that blocks rather than the adaptation in the spherical chamber, block be equipped with on the ball with the second through-hole of through-hole adaptation, wear to be equipped with the bull stick in the connecting rod, bull stick one end inserts the piston and with block the ball rigid coupling, bull stick other end rigid coupling has rather than coaxial gear, the rigid coupling has the rack with gear engagement in the recess, the bull stick rotates with the connecting rod to be connected, the bull stick rotates with the piston to be connected. When pushing down the handle, spherical chamber rotates, and through-hole and second through-hole intercommunication, at this moment, the fire extinguishing agent can go out from the piston middle part, has further accelerated fire extinguishing agent spun speed.
Preferably, the connecting rod comprises a first branch rod and a second branch rod coaxial with the first branch rod, one end of the first branch rod is fixedly connected with the gear, the other end of the first branch rod is provided with a limiting slide block, one end of the second branch rod is provided with a slide groove matched with the limiting slide block, the limiting slide block is positioned in the slide groove, the other end of the second branch rod is fixedly connected with the blocking ball, the moving directions of the through hole, the second through hole and the slide groove are straight lines, and when the moving direction of the slide groove is parallel to the moving direction of the through hole, the through hole is staggered with the second through hole. After the use, the lower pressing handle is loosened, the pressing rod moves upwards under the action of the second spring, the gear and the blocking ball rotate, the through hole is staggered with the second through hole, and meanwhile, the piston moves upwards and is tightly jacked on the jacking slope again; at the moment, the shaft of the through hole is perpendicular to the shaft of the second through hole, the direction of the sliding groove is parallel to the shaft of the through hole, at the moment, the blocking ball is upwards extruded on the spherical cavity in the bottle under a high-pressure state, and at the moment, the first branch rod and the second branch rod can allow slight dislocation to occur, so that the firm extrusion of the blocking ball is guaranteed, and good sealing performance is guaranteed.
Preferably, the lower side of the groove is fixedly connected with a limiting column, the bottom end of the second spring is sleeved on the limiting column, and when the connecting rod abuts against the top end of the limiting column, the through hole is coaxial with the second through hole. After spacing post can guarantee to push down the handle and push down, the second through-hole is coaxial with the through-hole, and in addition, the stability of second spring is guaranteed to spacing post.
Preferably, the pressure rod is sleeved with a sealing ring for improving air tightness. And the air tightness is improved.
Preferably, a locking rod for locking the lower pressing handle is arranged on the lower pressing handle and the lifting handle in a penetrating mode. Preventing accidental opening of the fire extinguisher.
Preferably, an anti-lost rope is connected between the locking rod and the valve body. The loss of the locking rod is prevented.
The invention has the beneficial effects that: the invention has convenient pressure adjustment and maintenance function; in addition, the traditional pressure lever is positioned in the guide groove, so that only a piston is arranged in the air inlet pipeline, and the spraying speed of the fire extinguishing agent is greatly increased; when the pressing handle is pressed down, the fire extinguishing agent can pass through the piston from the through hole and the second through hole, and the spraying speed is further accelerated.
Drawings
FIG. 1 is a schematic diagram of a prior art valve;
FIG. 2 is a partial cross-sectional view of the present invention;
FIG. 3 is a schematic view of the present invention;
FIG. 4 is a schematic view of the present invention with the hold-down bar depressed;
fig. 5 is an enlarged view of fig. 4 at a.
In the figure: the valve comprises a valve body 1, an air inlet pipeline 2, an air outlet 3, a piston 4, a lifting handle 5, a pressing handle 6, an access hole 7, a second piston 8, a push rod 9, a spring 10, a locking rod 15, a guide groove 16, a groove 17, a pressing rod 18, a connecting rod 19, a second spring 20, a frustum 21, a jacking slope 22, a through hole 23, a spherical cavity 24, a blocking ball 25, a second through hole 26, a rotating rod 27, a gear 28, a rack 29, a sealing ring 30, a first branch rod 31, a second branch rod 32, a limiting slide block 33, a sliding groove 34, a limiting column 35, a roller 36, a volute spring 37 and an anti-lost rope 38.
Detailed Description
The invention is explained in further detail below with reference to the figures and the detailed description:
example (b):
referring to fig. 1 to 5, a valve with an overhaul function comprises a valve body 1, an air inlet pipeline 2 positioned on the valve body 1, an air outlet 3 positioned on the valve body 1, a piston 4 positioned in the air inlet pipeline 2, a carrying handle 5 fixedly connected on the valve body 1, and a pressing handle 6 rotatably connected on the valve body 1 and used for controlling the piston 4, wherein a locking rod 15 for locking the pressing handle 6 is arranged on the pressing handle 6 and the carrying handle 5 in a penetrating manner; an anti-lost rope 38 is connected between the locking rod 15 and the valve body 1; an access hole 7 is formed in one side of the valve body 1, the access hole 7 is communicated with the air inlet pipeline 2, a second piston 8 matched with the access hole 7 is arranged in the access hole 7, the second piston 8 is in a circular truncated cone shape, the end face with the small area of the second piston 8 faces the inside of the access hole 7, a spring 10 used for extruding the second piston 8 to the outside of the access hole 7 is arranged in the access hole 7, a push rod 9 is fixedly connected to one side, facing the outside of the access hole 7, of the second piston 8, a guide groove 16 is formed in the top end of the valve body 1, a groove 17 is formed in the bottom end of the guide groove 16, the groove 17 is located in one side of the top end of the air inlet pipeline 2, a pressure rod 18 is arranged in the guide groove 16, and a sealing ring; the bottom end of the compression rod 18 is bent towards the piston 4 to form a connecting rod 19, a second spring 20 is arranged on the lower side of the connecting rod 19, the bottom end of the second spring 20 is connected to the lower side of the groove 17, the top end of the second spring 20 is connected to the connecting rod 19, a frustum 21 is arranged on the upper edge of the piston 4, a top tight slope 22 matched with the frustum 21 is arranged at the top end of the air inlet pipeline 2, the frustum 21 is tightly pressed on the top tight slope 22 under the action of the second spring 20, and the top end of the compression rod 18 is rotatably connected with a roller 36; a through hole 23 which is through up and down is formed in the piston 4, a spherical cavity 24 is formed in the middle of the through hole 23, a blocking ball 25 which is matched with the spherical cavity 24 is arranged in the spherical cavity 24, a second through hole 26 which is matched with the through hole 23 is formed in the blocking ball 25, a rotating rod 27 penetrates through the connecting rod 19, one end of the rotating rod 27 is inserted into the piston 4 and fixedly connected with the blocking ball 25, a gear 28 which is coaxial with the rotating rod 27 is fixedly connected to the other end of the rotating rod 27, a rack 29 which is meshed with the gear 28 is fixedly connected to the groove 17, the rotating rod 27 is rotatably connected with the connecting rod 19, and the rotating rod 27 is rotatably connected with the piston; the lower side of the groove 17 is fixedly connected with a limiting column 35, the bottom end of the second spring 20 is sleeved on the limiting column 35, and when the connecting rod 19 abuts against the top end of the limiting column 35, the through hole 23 is coaxial with the second through hole 26.
Connecting rod 19 includes first minute pole 31, divides pole 32 with the coaxial second of first minute pole 31, first minute pole 31 one end and gear 28 rigid coupling, the first minute pole 31 other end is equipped with limit slide 33, second divides pole 32 one end to be equipped with limit slide 33 adaptation's spout 34, limit slide 33 is located spout 34, the second divides the pole 32 other end and blocks ball 25 rigid coupling, through-hole 23, second through-hole 26, spout 34 move towards and be the straight line, and when the trend of spout 34 was parallel with the trend of through-hole 23, through-hole 23 staggers with second through-hole 26.
Principle of embodiment:
when the pressure in the bottle is too high, the push rod is extruded, the push rod and the second piston move towards the inside of the access hole, the spring is shortened, at the moment, a gap is formed between the second piston and the inner side wall of the access hole, and a part of the pressure in the bottle is discharged from the gap, so that the pressure in the bottle returns to be normal. When the bottle internal pressure was low excessively, insert the refill head in the access hole, the refill head tip supports and leans on the push rod, the refill head is prior art, do not do here and expand, push rod and second piston move in towards the access hole, the spring shortens, at this moment, form the space between the inside wall of second piston and access hole, the filler comes out from the refill head and gets into in the bottle through the access hole, pressure risees, treat after pressure returns normally, extract the refill head, under the effect of spring, the second piston supports again and leans on the inside wall of access hole, realize automatically that sealed, whole process need not twist off the valve, it is very convenient to overhaul.
Referring to fig. 1, a conventional valve is provided with a volute spring 37 below a piston 4, but when the valve is used, the volute spring 37 can prevent fire extinguishing agents from being sprayed out smoothly; in addition, the conventional pressure bar is positioned in the air inlet pipeline and can also block the spraying of the fire extinguishing agent.
When the fire extinguishing device is used, the pressing handle 6 is pressed downwards, the pressing rod 18 moves downwards, the pressing rod 18 drives the piston 4 to move downwards, the piston 4 is separated from the tightening slope 22, a fire extinguishing agent is discharged from a gap between the piston and the tightening slope 22, meanwhile, the second spring 20 is shortened, the gear 28 rotates on the rack 29, the gear 28 drives the rotating rod 27 to rotate, the blocking ball 25 rotates, when the connecting rod 19 abuts against the limiting column 35, the blocking ball 25 rotates for 90 degrees, at the moment, the through hole 23 is coaxial with the second through hole 26, the fire extinguishing agent can be discharged through the through hole and the second through hole at the same time, and the blocking effect of the piston 4 on the fire extinguishing agent is reduced; it should be noted that the presence of the grooves makes it possible to enlarge the space around the piston 4, thus further accelerating the expulsion of the extinguishing agent.
After use, the lower pressing handle 6 is released, the pressing rod 18 moves upwards under the action of the second spring 20, the gear 28 and the blocking ball 25 rotate, the through hole 23 is staggered with the second through hole 26, and meanwhile, the piston 4 moves upwards to be tightly pressed on the pressing slope 22 again; at this moment, the axis of the through hole is perpendicular to the axis of the second through hole, the direction of the sliding groove 34 is parallel to the axis of the through hole 23, at this moment, the blocking ball 25 is upwards extruded on the spherical cavity 24 under the high-pressure state in the bottle, and at this moment, a slight dislocation can be allowed to occur between the first branch rod 31 and the second branch rod 32, so that the blocking ball 25 is firmly extruded, and good sealing performance is guaranteed.

Claims (7)

1. A valve with an overhauling function comprises a valve body, an air inlet pipeline positioned on the valve body, an air outlet positioned on the valve body, a piston positioned in the air inlet pipeline, a carrying handle fixedly connected on the valve body, and a pressing handle connected to the valve body in a rotating manner and used for controlling the piston, and is characterized in that one side of the valve body is provided with an overhauling port, the overhauling port is communicated with the air inlet pipeline, a second piston matched with the overhauling port is arranged in the overhauling port, the second piston is in a circular truncated cone shape, the end face with a small area of the second piston faces the inside of the overhauling port, a spring used for extruding the second piston to the outside of the overhauling port is arranged in the overhauling port, one side of the second piston facing the outside of the overhauling port is fixedly connected with a push rod, the top end of the valve body is provided with a guide groove, the bottom end of the guide groove is provided with a groove, the utility model discloses a recess, including depression bar, connecting rod, air inlet pipeline, connecting rod, second spring, connecting rod top, the depression bar bottom is towards the piston bending type connecting rod, the downside of connecting rod is equipped with the second spring, the downside at the recess is connected to second spring bottom, second spring top is connected on the connecting rod, the upper edge of piston is equipped with the frustum, the inlet duct top be equipped with the tight slope in top of frustum adaptation, under the effect of second spring, the frustum top is tightly on the tight slope in top, the depression bar top is rotated and.
2. The valve with the overhauling function according to claim 1, wherein a through hole is formed in the piston and penetrates up and down, a spherical cavity is formed in the middle of the through hole, a blocking ball matched with the blocking ball is arranged in the spherical cavity, a second through hole matched with the through hole is formed in the blocking ball, a rotating rod penetrates through the connecting rod, one end of the rotating rod is inserted into the piston and fixedly connected with the blocking ball, a gear coaxial with the rotating rod is fixedly connected to the other end of the rotating rod, a rack meshed with the gear is fixedly connected to the groove, the rotating rod is rotatably connected with the connecting rod, and the rotating rod is rotatably connected with the piston.
3. The valve with the overhauling function according to claim 2, wherein the connecting rod comprises a first branch rod and a second branch rod coaxial with the first branch rod, one end of the first branch rod is fixedly connected with the gear, the other end of the first branch rod is provided with a limiting slide block, one end of the second branch rod is provided with a slide groove matched with the limiting slide block, the limiting slide block is positioned in the slide groove, the other end of the second branch rod is fixedly connected with a blocking ball, the trends of the through hole, the second through hole and the slide groove are all straight lines, and when the trend of the slide groove is parallel to the trend of the through hole, the through hole is staggered with the second through hole.
4. The valve with the overhauling function as recited in claim 2, wherein a limiting post is fixedly connected to the lower side of the groove, the bottom end of the second spring is sleeved on the limiting post, and when the connecting rod abuts against the top end of the limiting post, the through hole is coaxial with the second through hole.
5. The valve with the overhauling function as recited in claim 1, wherein a sealing ring for improving air tightness is sleeved on the compression rod.
6. The valve with the overhaul function as claimed in claim 1, 2, 3, 4 or 5, wherein the lower pressing handle and the lifting handle are provided with a locking rod for locking the lower pressing handle in a penetrating manner.
7. The valve with the overhauling function as recited in claim 6, wherein an anti-lost rope is connected between the dead locking rod and the valve body.
CN201911274179.9A 2019-12-12 2019-12-12 Valve with maintenance function Active CN111396578B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911274179.9A CN111396578B (en) 2019-12-12 2019-12-12 Valve with maintenance function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911274179.9A CN111396578B (en) 2019-12-12 2019-12-12 Valve with maintenance function

Publications (2)

Publication Number Publication Date
CN111396578A true CN111396578A (en) 2020-07-10
CN111396578B CN111396578B (en) 2021-09-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113483111A (en) * 2021-08-18 2021-10-08 绍兴嘉元消防设备有限公司 Fire extinguisher valve structure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2693376B1 (en) * 1992-07-07 1994-09-23 Sicli Multiple safety distribution valve for CO2 extinguishers.
CN201643493U (en) * 2010-02-25 2010-11-24 浙江欧伦泰防火设备有限公司 Stored pressure fire extinguisher head with air supplement device
CN204025706U (en) * 2014-08-20 2014-12-17 宁波正欣消防设备有限公司 A kind ofly be convenient to the fire extinguisher filling extinguishing agent
CN106178343A (en) * 2016-08-23 2016-12-07 黄远忠 One adds a cover formula band trigger fire extinguisher and application process thereof
CN206191046U (en) * 2016-11-16 2017-05-24 浙江欧伦泰防火设备有限公司 Low pressure valve releaser

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2693376B1 (en) * 1992-07-07 1994-09-23 Sicli Multiple safety distribution valve for CO2 extinguishers.
CN201643493U (en) * 2010-02-25 2010-11-24 浙江欧伦泰防火设备有限公司 Stored pressure fire extinguisher head with air supplement device
CN204025706U (en) * 2014-08-20 2014-12-17 宁波正欣消防设备有限公司 A kind ofly be convenient to the fire extinguisher filling extinguishing agent
CN106178343A (en) * 2016-08-23 2016-12-07 黄远忠 One adds a cover formula band trigger fire extinguisher and application process thereof
CN206191046U (en) * 2016-11-16 2017-05-24 浙江欧伦泰防火设备有限公司 Low pressure valve releaser

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113483111A (en) * 2021-08-18 2021-10-08 绍兴嘉元消防设备有限公司 Fire extinguisher valve structure

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