CN106621130B - Low pressure valve release and installation method - Google Patents
Low pressure valve release and installation method Download PDFInfo
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- CN106621130B CN106621130B CN201611009534.6A CN201611009534A CN106621130B CN 106621130 B CN106621130 B CN 106621130B CN 201611009534 A CN201611009534 A CN 201611009534A CN 106621130 B CN106621130 B CN 106621130B
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- 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
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Abstract
The invention discloses a kind of low pressure valve release and installation methods, it is desirable to provide one kind can carry out ftercompction, and easy to use, the good low pressure valve release of sealing reliability to fire extinguisher according to actual needs.Low pressure valve release includes valve body；It is arranged in the intracorporal valve flowing channel of valve, valve flowing channel includes sprue and the valve outlet that is arranged on valve body lateral surface and is connected to sprue, and sprue includes the taper valve opening that internal diameter is gradually reduced from bottom to top；For the spool of application valve body runner on-off, spool includes the valve rod being plugged in sprue, is arranged on valve rod and constitutes the valve rod upper seal being tightly connected with sprue and be arranged on valve rod and constitute the valve rod lower seal being tightly connected with taper valve opening；And the ftercompction mechanism on valve body is set, ftercompction mechanism includes the ftercompction hole being arranged on valve body lateral surface, the inflation check valve being arranged in ftercompction hole and is arranged in the intracorporal ftercompction connecting hole of valve.
Description
Technical field
The present invention relates to a kind of extinguisher valve doors, and in particular to a kind of low pressure valve release and installation method.
Background technique
Extinguisher valve release generally includes the composition such as valve body, valve rod, handle and carrying handle, and valve rod is mounted in valve body,
Valve rod is equipped with the sealing ring that sealing structure is cooperatively formed with valve body.Current extinguisher valve release usually only has switch function
Can, ftercompction can not be carried out to fire extinguisher, it is very unfavorable that this makes the service life of extension fire extinguisher.On the other hand, at present
Extinguisher valve in -20 degrees Celsius of low temperature environments below using will appear extinguisher valve leak the problem of.
Summary of the invention
The first object of the present invention is effectively extended and goes out in order to which one kind can carry out ftercompction to fire extinguisher according to actual needs
The low pressure valve release of the service life of firearm.
The second object of the present invention is to provide for a kind of easy to use, and sealing reliability is good, can effectively solve current
Low temperature extinguisher valve uses the low pressure valve release that will appear the problem of extinguisher valve leaks in low temperature environment.
The technical scheme is that
A kind of low pressure valve release includes: valve body；In the intracorporal valve flowing channel of valve, valve flowing channel includes running through valve for setting
The sprue of body upper and lower ends and the valve outlet for being arranged on valve body lateral surface and being connected to sprue, the lower port of sprue
Valve body import is constituted, sprue includes the taper valve opening that internal diameter is gradually reduced from bottom to top；For application valve body runner on-off
Spool, spool include the valve rod being plugged in sprue, are arranged on valve rod and constitute on the valve rod being tightly connected with sprue
Sealing ring and the valve rod lower seal for being arranged on valve rod and constituting with taper valve opening sealed connection, the valve outlet are located at valve
Between bar upper seal and valve rod lower seal；And the ftercompction mechanism on valve body is set, ftercompction mechanism includes being arranged in valve
Ftercompction hole on outside, the inflation check valve being arranged in ftercompction hole and it is arranged in the intracorporal ftercompction connecting hole of valve, ftercompction
The Single port of connecting hole is connected with ftercompction hole, and the another port of ftercompction connecting hole is connected with sprue, and be connected with sprue
The Single port of ftercompction connecting hole is located at the lower section of taper valve opening.
The valve flowing channel structure and valve core structure of this programme low pressure valve release cooperate ftercompction mechanism, release low pressure valve
Ftercompction can be carried out to fire extinguisher according to actual needs by putting device, effectively extend the service life of fire extinguisher.
On the other hand, the low pressure valve release of this programme has easy to use, the good feature of sealing reliability, and can have
Effect solves the problems, such as current low temperature extinguisher valve in low temperature environment using will appear extinguisher valve leakage.
Preferably, further including the safe releasing device being arranged on valve body, safe releasing device includes being arranged in valve body
Mounting hole on lateral surface is arranged on the bottom surface of mounting hole and the pressure-releasing hole being connected with ftercompction hole, the end that mounting hole is arranged in
Limit body, the rubber mounting blocks that are arranged in mounting hole in mouthful and being arranged in limits pre- between body and rubber mounting blocks
Tight compressed spring is equipped with the rubber press for sealing pressure-releasing hole towards the end face of the rubber mounting blocks of pressure-releasing hole.This programme
Safe releasing device can play the role of automatic discharge, when the air pressure in fire extinguisher bottle body be more than setting value when, release safely
It puts device and automatically turns on pressure release；It when in pressure pressure release to normal range (NR), is then automatically closed, to improve the use peace of fire extinguisher
Full performance.
Preferably, the port edge for the pressure-releasing hole being connected with mounting hole bottom surface is equipped with a circle annular protrusion, the rubber
Briquetting is pressed on annular protrusion end.This programme structure is conducive to improve the sealing reliability of rubber press sealing pressure-releasing hole.
Preferably, limit body is connected by screw thread with mounting hole, the medial surface for limiting body is limited equipped with body
Block is equipped with spring retainer boss towards the end face of the rubber mounting blocks of limit body, and described one end for pre-tightening compressed spring is stretched
Enter in limit sleeve body and be resisted against on body limited block, the other end for pre-tightening compressed spring is set on spring retainer boss.This
Scenario-frame is conducive to improve the job stability of safe releasing device.
Preferably, sprue includes: the upper valve opening with the cooperation of valve rod upper seal, the valve rod upper seal and upper valve
Hole cooperatively forms sealed connection；Middle valve opening below upper valve opening, the internal diameter of the middle valve opening are greater than the internal diameter of upper valve opening, institute
Valve outlet is stated to be connected with middle valve opening；And the lower valve opening below middle valve opening, the internal diameter of the lower valve opening are greater than middle valve
The internal diameter in hole；The cone valve hole valve opening and lower valve opening between middle valve opening and lower valve opening and in connection.
Preferably, further including vertical pipe sleeve, standpipe is set in the lower port of sprue, is set on the medial surface of vertical pipe sleeve
There is pipe sleeve position limiting convex ring；And the first back-moving spring in vertical pipe sleeve is set, the lower end of first back-moving spring is resisted against pipe sleeve
On position limiting convex ring, the upper end of first back-moving spring is resisted against the lower end of valve rod.This programme structure is not only convenient for low temperature extinguisher valve
The actual production production of door, and can guarantee the sealing reliability of valve.
Preferably, further including fire extinguisher operation handlebar, fire extinguisher operation handlebar includes the carrying handle for being fixed at valve body top
And the handle on carrying handle is hinged on by articulated shaft, above the valve rod that the handle is located at.
Preferably, further including adaptively filling exhaust sealing structure, the valve rod lateral surface is equipped with valve rod upper seal
Mounting groove, the valve rod upper seal are arranged in valve rod upper seal mounting groove, and annular inflatable is equipped in valve rod upper seal
Chamber, valve rod upper seal lateral surface are additionally provided with the inflation intubation being connected with annular inflatable chamber；It is described adaptively to fill exhaust sealing
Structure includes the main channel in adaptive on off mechanism, pressure type inflatable structure and valve rod, and the pressure type inflatable structure includes setting
On valve rod and along the radial stepped hole that valve rod radially extends, radial ladder hole location is in valve rod upper seal and valve rod lower seal
Between, radial stepped hole includes interior radial hole and the outer radial hole being connected with valve rod lateral surface, one end of the interior radial hole
It is connected with outer radial hole, the other end closing of interior radial hole, the medial surface in the outer radial hole is equipped with radial hole limited block,
Outer radial hole is additionally provided with piston body, and piston body is between radial hole limited block and interior radial hole, piston body and interior radial hole
Second back-moving spring is additionally provided between bottom surface；The adaptive on off mechanism include the vertical valve pocket being fixed on valve body,
Be arranged on vertical valve pocket lateral surface and the first interface that is connected with vertical valve pocket medial surface and second interface, be plugged in it is vertical
Valve pocket bar in valve pocket and the valve pocket bar upper seal and valve pocket bar lower seal being arranged on valve pocket bar, the valve pocket bar it is upper
End is equipped with valve pocket bar upper limit position block, and the lower end of valve pocket bar is equipped with valve pocket bar lower position block, and valve pocket bar upper limit position block is located at vertical valve
Set top, valve pocket bar lower position block are located at below vertical valve pocket, on valve pocket bar and are located at valve pocket bar upper limit position block and vertical valve pocket
Upper surface between be equipped with third reset spring, the upper end of the valve pocket bar is located at the underface of handle, the first interface position
In the top of second interface, the main channel is axially extending along valve rod, and the lower end of main channel is connected with interior radial hole, main channel
Upper end closed, be connected between the main channel and the bottom surface of upper seal mounting groove by radially connected hole, the inflation
It is plugged in radially connected hole, and inflates intubation and be tightly connected with radially connected hole, the lateral surface top of the valve rod is set
There is the upper connecting hole being connected with main channel, upper connecting hole is located at the top of valve body, between the second interface and upper connecting hole
It is tightly connected by connection hose.
Preferably, the lateral surface of valve rod is equipped with valve stem spacing block, valve stem spacing block is located at the top of valve body, valve rod limit
Position block is located at the lower section of upper connecting hole.When valve pocket bar lower position block is resisted against on the lower end surface of vertical valve pocket, described first is connect
Mouth and second interface are located between valve pocket bar upper seal and valve pocket bar lower seal；When valve stem spacing block is resisted against the upper of valve body
When on end face, between valve pocket bar upper seal is located at first interface and second interface is located at.
Preferably, being equipped with filter screen in ftercompction connecting hole.
The beneficial effects of the present invention are:
First, ftercompction can be carried out to fire extinguisher according to actual needs, effectively extend the service life of fire extinguisher.
Second, have it is easy to use, sealing reliability is good, can effectively solve current low temperature extinguisher valve in low temperature ring
The problem of in border using will appear extinguisher valve leakage.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the low pressure valve release of the embodiment of the present invention 1.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is a kind of structural schematic diagram of the low pressure valve release of the embodiment of the present invention 3.
Fig. 4 is the partial enlarged view in Fig. 3 at A.
Fig. 5 is the partial enlarged view in Fig. 4 at B.
Fig. 6 is a kind of structural schematic diagram at the adaptive on off mechanism of the embodiment of the present invention 3.
In figure:
Valve body 1；
Spool 2, valve rod 2.1, valve rod upper seal 2.2, valve rod lower seal 2.3, annular inflatable chamber 2.4, inflation intubation
2.5, valve stem spacing block 2.6；
Valve flowing channel 3, upper valve opening 3.1, middle valve opening 3.2, valve outlet 3.3, taper valve opening 3.4, lower valve opening 3.5；
First back-moving spring 4；
Vertical pipe sleeve 5, pipe sleeve position limiting convex ring 5.1；
Fire extinguisher operation handlebar 6, carrying handle 6.1, handle 6.2, articulated shaft 6.3, safety plug 6.4；
Adaptive on off mechanism 7, vertical valve pocket 7.1, valve pocket bar 7.2 connect hose 7.3, and second interface 7.4, first connects
Mouth 7.5, valve pocket bar upper seal 7.6, third reset spring 7.7, valve pocket bar upper limit position block 7.8, valve pocket bar lower seal 7.9,
Valve pocket bar lower position block 7.10；
Pressure type inflatable structure 8, interior radial hole 8.1, taper connection hole 8.2, outer radial hole 8.3, round estrade 8.4, piston body
8.5, second back-moving spring 8.6, rotary table body sealing ring 8.7, radial hole limited block 8.8；
Main channel 9, radially connected hole 9.1, upper connecting hole 9.2；
Ftercompction mechanism 10, ftercompction hole 10.1, ftercompction connecting hole 10.2, filter screen 10.3 inflate check valve 10.4；
Safe releasing device 11, body limited block 11.1 limit body 11.2, pre-tighten compressed spring 11.3, rubber installation
Block 11.4, rubber press 11.5, annular protrusion 11.6, pressure-releasing hole 11.7.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing:
Embodiment 1: as shown in Figure 1, a kind of low pressure valve release includes valve body 1；It is arranged in the intracorporal valve flowing channel of valve
3；Spool 2 for application valve body runner on-off；Vertical pipe sleeve 5；First back-moving spring 4 in vertical pipe sleeve is set；It is arranged in valve
Ftercompction mechanism 10 on body；Safe releasing device 11 and fire extinguisher operation handlebar 6 on valve body are set.
Valve flowing channel includes the sprue for running through valve body upper and lower ends, is arranged on valve body lateral surface and is connected to sprue
Valve outlet 3.3.The lower port of sprue constitutes valve body import.Sprue includes upper valve opening 3.1, below upper valve opening
The taper valve opening 3.4 that middle valve opening 3.2, internal diameter are gradually reduced from bottom to top and the lower valve opening 3.5 below middle valve opening.Middle valve
The internal diameter in hole is greater than the internal diameter of upper valve opening.The internal diameter of lower valve opening is greater than the internal diameter of middle valve opening.Cone valve hole is located at middle valve opening under
Valve opening and lower valve opening between valve opening and in connecting.Valve outlet is connected with middle valve opening.
Spool includes the valve rod 2.1 being plugged in sprue, is arranged on valve rod and constitutes sealed connection with sprue
Valve rod upper seal 2.2 and the valve rod lower seal 2.3 for being arranged on valve rod and constituting with taper valve opening sealed connection.Valve body goes out
Mouth is between valve rod upper seal and valve rod lower seal.Valve rod can be moved up and down along sprue.The upper end of valve rod is located at
The top of valve body.The upper end of valve rod is equipped with up raised hemisphere jut.Valve rod upper seal is located at the upper of valve rod lower seal
Side.Valve rod upper seal is located at the top of taper valve opening.Valve rod upper seal and upper valve opening cooperatively form sealed connection.Under valve rod
Sealing ring and taper valve opening cooperatively form sealed connection.Valve rod lower seal is cylindric body, the upper end of valve rod lower seal
Face outer edge is equipped with rounded corner.
Standpipe is set in the lower port of sprue, is connected through a screw thread between vertical pipe sleeve and sprue.Vertical pipe sleeve
Medial surface is equipped with pipe sleeve position limiting convex ring 5.1.First back-moving spring is the down big up small Pagoda-shaped spring of internal diameter.First resets bullet
The lower end of spring is resisted against on pipe sleeve position limiting convex ring, and the upper end of first back-moving spring is resisted against the lower end of valve rod.
Fire extinguisher operation handlebar includes being fixed at the carrying handle 6.1 on valve body top and being hinged on carrying handle by articulated shaft 6.3
On handle 6.2.Safety plug 6.4 is inserted between carrying handle and handle.Above the valve rod that handle is located at.
When valve rod lower seal is abutted with the inner conical surface of taper valve opening to be connected, valve outlet and valve body import are cut off.
When valve rod moves down along sprue and separates valve rod lower seal with the inner conical surface of taper valve opening, valve body goes out
Mouth is connected to valve body import.
As shown in Figure 1 and Figure 2, ftercompction mechanism 10 includes the ftercompction hole 10.1 being arranged on valve body lateral surface, is arranged in ftercompction
Inflation check valve 10.4 and setting in hole is in the intracorporal ftercompction connecting hole 10.2 of valve.Filter screen is equipped in ftercompction connecting hole
10.3.The axis in ftercompction hole and valve rod axis are perpendicular.Inflation check valve is connected through a screw thread with ftercompction hole.The present embodiment fills
Gas check valve is gaseous core.It is tightly connected between inflation check valve and ftercompction hole by unidirectional valve seals.The one of ftercompction connecting hole
Port is connected with ftercompction hole, and the Single port for the ftercompction connecting hole being connected with ftercompction hole is located at the bottom of inflation check valve and ftercompction hole
Between face.The another port of ftercompction connecting hole is connected with sprue, and the Single port position for the ftercompction connecting hole being connected with sprue
In the lower section of taper valve opening.
Safe releasing device 11 include be arranged on valve body lateral surface mounting hole, be arranged on the bottom surface of mounting hole and with
The connected pressure-releasing hole 11.7 in ftercompction hole, be arranged in the port of mounting hole limit body 11.2, the rubber that is arranged in mounting hole
Glue mounting blocks 11.4 and the preload compressed spring 11.3 being arranged between limit body and rubber mounting blocks.Mounting hole, pressure-releasing hole
It is coaxially disposed with ftercompction hole.Limit body and pressure-releasing hole are located at the opposite sides of rubber mounting blocks.Limit body by screw thread with
Mounting hole is connected, and the medial surface for limiting body is equipped with body limited block 11.1.Towards the end of the rubber mounting blocks of limit body
Face is equipped with spring retainer boss.The one end for pre-tightening compressed spring is protruded into limit sleeve body and is resisted against on body limited block, in advance
The other end of tight compressed spring is set on spring retainer boss.The port edge for the pressure-releasing hole being connected with mounting hole bottom surface is equipped with
One circle annular protrusion 11.6.The rubber press for sealing pressure-releasing hole is equipped with towards the end face of the rubber mounting blocks of pressure-releasing hole
11.5.Rubber press is pressed on the end of annular protrusion.
The course of work of the low pressure valve release of the present embodiment is as follows:
The valve body lower end of low pressure valve release and the upper port of fire extinguisher bottle are connected by thread seal, valve body import
It is connected with the inner cavity of fire extinguisher tank.
When safety plug is plugged between carrying handle and handle, low pressure valve release is in close state；At this point, first is multiple
Position spring up jacks up valve rod, abuts valve rod lower seal with the inner conical surface of taper valve opening and is connected, valve outlet and valve body
Import is cut off, and low pressure valve release is in close state.
When low pressure valve release is in close state, the sealing structure between valve rod lower seal and taper valve opening is determined
Determine the leakage problem of low pressure valve release, and the sealing structure of upper seal does not generate shadow to extinguisher valve leakage problem
It rings.
When low pressure valve release is in close state, since the internal diameter of taper valve opening is gradually smaller from bottom to top, when
When first back-moving spring abuts valve rod lower seal with the inner conical surface of taper valve opening to be connected, valve rod lower seal is by pressurized receipts
Contracting, forms biggish contact area between the inner conical surface of taper valve opening, makes to be formed between valve rod lower seal and taper valve opening
More stable, reliable sealing structure；And valve rod lower seal is more past to be moved up, then between valve rod lower seal and taper valve opening
Extruding force it is bigger, the contact area between valve rod lower seal and the inner conical surface of taper valve opening is bigger, and sealing structure is more reliable；
Thus can effectively solve current low temperature extinguisher valve in low temperature environment using will appear extinguisher valve leakage ask
Topic.
When in use, firstly, safety plug is extracted, then, it is only necessary to valve rod be pressed down and (pushed handle
Valve rod is pressed down), separate valve rod lower seal and the inner conical surface of taper valve opening, then valve outlet is connected to valve body import,
That is cocoa Open valve, it is easy to use.
On the other hand, when fire extinguisher needs ftercompction, operator can the ftercompction into fire extinguisher by ftercompction hole.In ftercompction
In the process, when the air pressure in fire extinguisher bottle body is more than setting value, safe releasing device automatically turns on pressure release；When pressure pressure release is arrived
When in normal range (NR), then it is automatically closed.
Embodiment 2: a kind of installation method of low pressure valve release, the specific knot of the low pressure valve release of the present embodiment
Structure is referring to embodiment 1: the installation method of low pressure valve release the following steps are included:
First: safe releasing device being installed on valve body: firstly, rubber press is bonded and fixed at rubber mounting blocks
On；Then, rubber mounting blocks are put into mounting hole；Followed by, by pre-tighten compressed spring be put into mounting hole；Finally, will limit
Position body is mounted in mounting hole, and limit body is connected through a screw thread with mounting hole.Limit is protruded into the one end for pre-tightening compressed spring
Set is internal and is resisted against on body limited block, and the other end for pre-tightening compressed spring is set on spring retainer boss.Rubber press
It is pressed on the end of annular protrusion.
Ftercompction mechanism is installed on valve body: inflation check valve being installed in ftercompction hole, inflation check valve and ftercompction hole
It is connected through a screw thread.
Spool is installed on valve body: by valve rod by the lower port insertion sprue of sprue, the upper end of valve rod is passed through
Positioned at the top of valve body, valve rod upper seal and upper valve opening cooperatively form sealed connection, and valve rod lower seal is matched with taper valve opening
It closes to be formed and be tightly connected.
Second, first back-moving spring is placed in vertical pipe sleeve vertically, the lower end of first back-moving spring is supported in pipe sleeve limit
On bulge loop；Then, vertical pipe sleeve is installed in the lower port of sprue, the lower port of vertical pipe sleeve and sprue is connected by screw thread
It connects, after being installed, the upper end of first back-moving spring acts against the lower end of valve rod, and first back-moving spring is in compressive state.
Embodiment 3: remaining structure reference embodiment 1 of the present embodiment, the difference is that:
As shown in Figure 2 and Figure 3, a kind of low pressure valve release is including further including adaptively filling exhaust sealing structure.Outside valve rod
Side is equipped with valve rod upper seal mounting groove.Valve rod upper seal is arranged in valve rod upper seal mounting groove.It is close on valve rod
Annular inflatable chamber 2.4 is equipped in seal.Valve rod upper seal lateral surface is additionally provided with the inflation intubation being connected with annular inflatable chamber
2.5。
Adaptively filling exhaust sealing structure includes the main channel in adaptive on off mechanism 7, pressure type inflatable structure 8 and valve rod
9。
As shown in Figure 3, Figure 4, pressure type inflatable structure includes the radial ladder for being arranged on valve rod and radially extending along valve rod
Hole.Radial ladder hole location is between valve rod upper seal and valve rod lower seal.Radial stepped hole include interior radial hole 8.1 and with
The outer radial hole 8.3 that valve rod lateral surface is connected.One end of interior radial hole is connected with outer radial hole, the other end of interior radial hole
Closing.Interior radial hole and outer radial hole are coaxially disposed.Radial hole and outer is additionally provided in connection between interior radial hole and outer radial hole
The taper connection hole 8.2 of radial hole.The internal diameter in taper connection hole between outer radial hole inside radial hole direction by reducing.Outer radial
The medial surface in hole is equipped with radial hole limited block 8.8.Outer radial hole is additionally provided with piston body 8.5.Piston body is located at radial hole limit
Between block and interior radial hole.Second back-moving spring 8.6 is additionally provided between piston body and the bottom surface of interior radial hole.The end face of piston body
On be additionally provided with taper connection hole cooperation round estrade 8.4.Round estrade and radial hole limited block are located at the opposite sides of piston body.
The lateral surface of round estrade is equipped with the rotary table body sealing ring 8.7 that sealing structure is cooperatively formed with taper connection hole.Outside piston body
Side is equipped with the piston body sealing ring that sealing structure is cooperatively formed with outer radial hole.
As shown in Fig. 2, Fig. 3, Fig. 5, adaptive on off mechanism includes the vertical valve pocket 7.1 being fixed on valve body, sets
It sets on vertical valve pocket lateral surface and the first interface 7.5 that is connected with vertical valve pocket medial surface and second interface 7.4, is plugged in
Valve pocket bar 7.2 in valve pocket and the valve pocket bar upper seal 7.6 and valve pocket bar lower seal 7.9 that are arranged on valve pocket bar vertically.
Vertical valve pocket is connected by connector with valve body.First interface is located at the top of second interface.The upper end of valve pocket bar is equipped with valve pocket
Bar upper limit position block 7.8.The lower end of valve pocket bar is equipped with valve pocket bar lower position block 7.10.Valve pocket bar upper limit position block is located on vertical valve pocket
Side.Valve pocket bar lower position block is located at below vertical valve pocket.On valve pocket bar and it is located at the upper of valve pocket bar upper limit position block and vertical valve pocket
Third reset spring 7.7 is equipped between end face.The upper end of valve pocket bar is located at the underface of handle.Vertical valve pocket is located at valve rod and hinge
Between spindle.
As shown in figure 3, main channel is axially extending along valve rod, the lower end of main channel is connected with interior radial hole, main channel
Upper end closed.It is connected between main channel and the bottom surface of upper seal mounting groove by radially connected hole 9.1.Inflation plugs
In radially connected hole, and inflates intubation and be tightly connected with radially connected hole.By inserting between inflation intubation and radially connected hole
Seal of tube circle is tightly connected.
The lateral surface top of valve rod is equipped with the upper connecting hole 9.2 being connected with main channel.The lateral surface of valve rod is equipped with valve
Bar limited block 2.6.Valve stem spacing block is located at the top of valve body.Upper connecting hole is located at the top of valve body.Valve stem spacing block is located at upper
The lower section of connecting hole.It is tightly connected between second interface and upper connecting hole by connection hose 7.3.
As shown in figs. 3 and 5, when valve pocket bar lower position block is resisted against on the lower end surface of vertical valve pocket, first interface and
Two interfaces are located between valve pocket bar upper seal and valve pocket bar lower seal.
When valve stem spacing block is resisted against on the upper surface of valve body, valve pocket bar upper seal is located at first interface and connects with second
Between mouth is located at, valve rod lower seal is separated with the inner conical surface of taper valve opening.
For the course of work of the low pressure valve release of the present embodiment referring to embodiment, difference is as follows:
Although the sealing knot when low pressure valve release is in close state, between valve rod lower seal and taper valve opening
Structure determines the leakage problem of low pressure valve release, and the sealing structure of upper seal does not generate extinguisher valve leakage problem
It influences；But in fire extinguisher use process (valve rod lower seal is separated with the inner conical surface of taper valve opening), valve rod upper seal with
The reliability of the sealing structure formed between upper valve opening then directly affects the normal use of fire extinguisher.Conventional fire extinguisher is using
In the process, especially will appear in use process in low temperature environment because the sealing structure between upper seal and upper valve opening is unstable
The problem of determining, and being leaked between upper seal and upper valve opening, influence the normal use of fire extinguisher；The present embodiment is directed to this
One problem improves, and effectively solves the problems, such as this, is further ensured that the normal use of fire extinguisher.
In fire extinguisher use process, operator presses down handle.During handle presses down, handle elder generation and valve
The upper-end contact of loop bar presses down valve pocket bar；Then, handle presses down valve rod again with the upper-end contact of valve rod, until valve
Until bar limited block is resisted against on the upper surface of valve body, at this point, valve rod lower seal is separated with the inner conical surface of taper valve opening, open
Extinguisher valve.When valve stem spacing block is resisted against on the upper surface of valve body, valve pocket bar upper seal is located at first interface and
Between two interfaces are located at, so that first interface and second interface be cut off.
Opening extinguisher valve behind the door, main channel and fire extinguisher inner cavity between valve rod upper seal and valve rod lower seal
Being connected, (main channel between valve rod upper seal and valve rod lower seal is identical as the pressure in fire extinguisher, is in high pressure shape
State), piston body will move inside under ambient pressure effect, until being resisted against on taper connection hole；In this process
Piston body is intracavitary by the annular inflatable of the gas indentation valve rod upper seal in outer radial hole, expands valve rod upper seal, from
And guarantee the reliability of the sealing structure formed between valve rod upper seal and upper valve opening, avoid because upper seal and upper valve opening it
Between sealing structure it is unstable, and leaked between upper seal and upper valve opening, influence asking for the normal use of fire extinguisher
Topic.
When fire extinguisher is stopped using, operator discharges handle, and at this time under the action of third reset spring, valve pocket bar will
Reset is moved up, i.e., valve pocket bar lower position block is resisted against on the lower end surface of vertical valve pocket, at this point, first interface is located at second interface
Between valve pocket bar upper seal and valve pocket bar lower seal, the annular inflatable chamber of valve rod upper seal is made to pass through main channel, connection
Hose, second interface and first interface are in communication with the outside, so that valve rod upper seal be made to shrink.When valve rod upper seal is shunk
Afterwards, under the action of first back-moving spring, valve rod will be jacked up up, abut valve rod lower seal and the inner conical surface of taper valve opening
It is connected, valve outlet and valve body import are cut off, and low pressure valve release is in close state again.
Claims (7)
1. a kind of low pressure valve release, characterized in that include:
Valve body；
It is arranged in the intracorporal valve flowing channel of valve, valve flowing channel includes running through the sprue of valve body upper and lower ends and being arranged outside valve body
The valve outlet being connected on side and with sprue, the lower port of sprue constitute valve body import, sprue include it is interior without leave under
The taper valve opening being gradually reduced on and；
For the spool of application valve body runner on-off, spool include the valve rod being plugged in sprue, be arranged on valve rod and with
Sprue constitutes the valve rod upper seal being tightly connected and is arranged on valve rod and constitutes the valve rod being tightly connected with taper valve opening
Lower seal, the valve outlet is between valve rod upper seal and valve rod lower seal；
Ftercompction mechanism on valve body is set, and ftercompction mechanism includes the ftercompction hole being arranged on valve body lateral surface, is arranged in ftercompction
In the intracorporal ftercompction connecting hole of valve, the Single port of ftercompction connecting hole is connected inflation check valve and setting in hole with ftercompction hole, mends
The Single port for the ftercompction connecting hole that the another port of pressure connecting hole is connected with sprue, and is connected with sprue is located at taper valve opening
Lower section；
Vertical pipe sleeve, standpipe are set in the lower port of sprue, and the medial surface of vertical pipe sleeve is equipped with pipe sleeve position limiting convex ring；Setting
First back-moving spring in vertical pipe sleeve, the lower end of first back-moving spring are resisted against on pipe sleeve position limiting convex ring, first back-moving spring
Upper end be resisted against the lower end of valve rod；
Fire extinguisher operation handlebar, fire extinguisher operation handlebar include being fixed at the carrying handle on valve body top and being hinged on by articulated shaft to mention
Upper handle, the handle is located above valve rod；
Adaptively fill exhaust sealing structure, the valve rod lateral surface is equipped with valve rod upper seal mounting groove, close on the valve rod
Seal is arranged in valve rod upper seal mounting groove, and annular inflatable chamber, valve rod upper seal outside are equipped in valve rod upper seal
Face is additionally provided with the inflation intubation being connected with annular inflatable chamber；
It is described that adaptively to fill exhaust sealing structure include the main channel in adaptive on off mechanism, pressure type inflatable structure and valve rod,
The pressure type inflatable structure includes being arranged on valve rod and along the radial stepped hole that valve rod radially extends, radial ladder hole location
Between valve rod upper seal and valve rod lower seal, radial stepped hole includes interior radial hole and is connected with valve rod lateral surface
The one end in outer radial hole, the interior radial hole is connected with outer radial hole, the other end closing of interior radial hole, the outer radial hole
Medial surface be equipped with radial hole limited block, outer radial hole is additionally provided with piston body, and piston body is located at radial hole limited block and internal diameter
To between hole, second back-moving spring is additionally provided between piston body and the bottom surface of interior radial hole；
The adaptive on off mechanism includes the vertical valve pocket being fixed on valve body, is arranged on vertical valve pocket lateral surface simultaneously
The first interface being connected with vertical valve pocket medial surface is with second interface, the valve pocket bar being plugged in vertical valve pocket and setting in valve
The upper end of valve pocket bar upper seal and valve pocket bar lower seal on loop bar, the valve pocket bar is equipped with valve pocket bar upper limit position block, valve
The lower end of loop bar is equipped with valve pocket bar lower position block, and valve pocket bar upper limit position block is located above vertical valve pocket, valve pocket bar lower position block position
Below vertical valve pocket, third is equipped on valve pocket bar and between valve pocket bar upper limit position block and the upper surface of vertical valve pocket and is resetted
Spring, the upper end of the valve pocket bar are located at the underface of handle, and the first interface is located at the top of second interface,
The main channel is axially extending along valve rod, and the lower end of main channel is connected with interior radial hole, the upper end closed of main channel, institute
It states and is connected between main channel and the bottom surface of valve rod upper seal mounting groove by radially connected hole, the inflation is plugged in
It in radially connected hole, and inflates intubation and is tightly connected with radially connected hole, the lateral surface top of the valve rod is equipped with and main channel
The upper connecting hole being connected, upper connecting hole are located at the top of valve body, soft by connecting between the second interface and upper connecting hole
Seal of tube connection.
2. low pressure valve release according to claim 1, characterized in that further include:
Safe releasing device on valve body is set, and safe releasing device includes the mounting hole being arranged on valve body lateral surface, sets
Set on the bottom surface of mounting hole and be connected with ftercompction hole pressure-releasing hole, mounting hole is set port in limit body, setting
In the rubber mounting blocks in mounting hole and the preload compressed spring being arranged between limit body and rubber mounting blocks, towards discharge
The end face of the rubber mounting blocks in hole is equipped with the rubber press for sealing pressure-releasing hole.
3. low pressure valve release according to claim 2, characterized in that the end for the pressure-releasing hole being connected with mounting hole bottom surface
Mouth edge is equipped with a circle annular protrusion, and the rubber press is pressed on the end of annular protrusion.
4. low pressure valve release according to claim 2 or 3, characterized in that the limit body passes through screw thread and peace
Dress hole is connected, and the medial surface for limiting body is equipped with body limited block, sets on the end face of the rubber mounting blocks of direction limit body
There is spring retainer boss, described one end for pre-tightening compressed spring is protruded into limit sleeve body and is resisted against on body limited block, pre-tightens
The other end of compressed spring is set on spring retainer boss.
5. low pressure valve release according to claim 1 or 2 or 3, characterized in that the sprue includes:
With the upper valve opening of valve rod upper seal cooperation, the valve rod upper seal and upper valve opening cooperatively form sealed connection；
Middle valve opening below upper valve opening, the internal diameter of the middle valve opening are greater than the internal diameter of upper valve opening, and the valve outlet is in
Valve opening is connected；And
Lower valve opening below middle valve opening, the internal diameter of the lower valve opening are greater than the internal diameter of middle valve opening；
The cone valve hole valve opening and lower valve opening between middle valve opening and lower valve opening and in connection.
6. low pressure valve release according to claim 1, characterized in that the lateral surface of the valve rod is limited equipped with valve rod
Position block, valve stem spacing block are located at the top of valve body, and valve stem spacing block is located at the lower section of upper connecting hole；When valve pocket bar lower position block supports
When leaning against on the lower end surface of vertical valve pocket, the first interface and second interface be located at valve pocket bar upper seal with it is close under valve pocket bar
Between seal；
When valve stem spacing block is resisted against on the upper surface of valve body, valve pocket bar upper seal be located at first interface and second interface it
Between.
7. low pressure valve release according to claim 1 or 2 or 3, characterized in that be equipped in the ftercompction connecting hole
Strainer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611009534.6A CN106621130B (en) | 2016-11-16 | 2016-11-16 | Low pressure valve release and installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611009534.6A CN106621130B (en) | 2016-11-16 | 2016-11-16 | Low pressure valve release and installation method |
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| Publication Number | Publication Date |
|---|---|
| CN106621130A CN106621130A (en) | 2017-05-10 |
| CN106621130B true CN106621130B (en) | 2019-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611009534.6A Active CN106621130B (en) | 2016-11-16 | 2016-11-16 | Low pressure valve release and installation method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11293565B2 (en) * | 2018-11-01 | 2022-04-05 | Illinois Tool Works Inc. | Pressure airlock |
| CN110898360A (en) * | 2019-11-05 | 2020-03-24 | 天津航空机电有限公司 | Fill portable fire-extinguishing bottle injection structure of 2-BTP fire extinguishing agent |
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|---|---|---|---|---|
| US4062407A (en) * | 1976-07-26 | 1977-12-13 | J. I. Case Company | Fire extinguisher system using liquid-ballast tires |
| CN2094360U (en) * | 1991-05-14 | 1992-01-29 | 象山防火器配厂 | Pressure storage fire-extinguisher head |
| CN201643494U (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 provided with safe releasing device |
| CN101972530A (en) * | 2010-09-03 | 2011-02-16 | 北京工业大学 | Inflatable multipurpose water mist fire extinguisher |
| CN202132553U (en) * | 2011-07-05 | 2012-02-01 | 陈宏祥 | Self pressure relief fire extinguisher valve |
-
2016
- 2016-11-16 CN CN201611009534.6A patent/CN106621130B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4062407A (en) * | 1976-07-26 | 1977-12-13 | J. I. Case Company | Fire extinguisher system using liquid-ballast tires |
| CN2094360U (en) * | 1991-05-14 | 1992-01-29 | 象山防火器配厂 | Pressure storage fire-extinguisher head |
| CN201643494U (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 provided with safe releasing device |
| CN101972530A (en) * | 2010-09-03 | 2011-02-16 | 北京工业大学 | Inflatable multipurpose water mist fire extinguisher |
| CN202132553U (en) * | 2011-07-05 | 2012-02-01 | 陈宏祥 | Self pressure relief fire extinguisher valve |
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| Publication number | Publication date |
|---|---|
| CN106621130A (en) | 2017-05-10 |
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