CN106621130A - Low pressure valve releaser and installing method - Google Patents
Low pressure valve releaser and installing method Download PDFInfo
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- CN106621130A CN106621130A CN201611009534.6A CN201611009534A CN106621130A CN 106621130 A CN106621130 A CN 106621130A CN 201611009534 A CN201611009534 A CN 201611009534A CN 106621130 A CN106621130 A CN 106621130A
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- valve
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- sealing ring
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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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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a low pressure valve releaser and an installing method and aims at providing the low pressure valve releaser which can supplement pressure for a fire extinguisher according to actual requirements, is convenient to use and has good sealing reliability. The low pressure valve releaser comprises a valve body, a valve body flow channel, a valve core and a pressure supplementation mechanism, wherein the valve body flow channel is arranged in the valve body and comprises a main flow channel and a valve body outlet which is formed in the outer side surface of the valve body and communicates with the main flow channel; the main flow channel comprises a conical valve hole, the inner diameter of which gradually decreases from bottom to top; the valve core is used for controlling connection and disconnection of the valve body flow channel and comprises a valve rod arranged in the main flow channel in an inserting manner, a valve rod upper sealing ring arranged on the valve rod and being in tight connection with the main flow channel and a valve rod lower sealing ring arranged on the valve rod and being in tight connection with the conical valve hole; and the pressure supplementation mechanism is arranged on the valve body and comprises a pressure supplementation hole formed in the outer side surface of the valve body, an air inflation one-way valve arranged in the pressure supplementation hole and a pressure supplementation connection hole formed in the valve body.
Description
Technical field
The present invention relates to a kind of extinguisher valve door, and in particular to a kind of low pressure valve release and installation method.
Background technology
Extinguisher valve release generally includes the composition such as valve body, valve rod, pressure handle and carrying handle, and valve rod is arranged in valve body,
Valve rod is provided with and cooperatively forms the sealing ring of sealing structure with valve body.Current extinguisher valve release generally only possesses switch work(
Can, it is impossible to ftercompction is carried out to fire extinguisher, this for extend fire extinguisher service life make it is very unfavorable.On the other hand, it is current
Extinguisher valve occurs the problem that extinguisher valve is leaked used in the low temperature environment below -20 degrees Celsius.
The content of the invention
The first object of the present invention is, in order to one kind can carry out ftercompction to fire extinguisher according to actual needs, effectively to extend and go out
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 solving it is current
Low temperature extinguisher valve occurs the low pressure valve release of the problem that extinguisher valve is leaked used in low temperature environment.
The technical scheme is that：
A kind of low pressure valve release includes：Valve body；The valve flowing channel being arranged in valve body, valve flowing channel is included on valve body
The sprue at lower two ends and the valve outlet for being arranged on valve body lateral surface and connecting with sprue, the lower port of sprue is constituted
Valve body import, sprue includes the taper valve opening that internal diameter is gradually reduced from bottom to top；For the valve element of application valve body runner break-make,
Valve element includes the valve rod being plugged in sprue, is arranged on valve rod and constitutes sealing ring on the valve rod being tightly connected with sprue
Be arranged on valve rod and constitute with taper valve opening the valve rod lower seal that is tightly connected, the valve outlet is located at close on valve rod
Between seal and valve rod lower seal；And the ftercompction mechanism being arranged on valve body, ftercompction mechanism include be arranged on valve body outside
Ftercompction hole, the inflation check valve being arranged in ftercompction hole and the ftercompction connecting hole being arranged in valve body on face, ftercompction connecting hole
Single port be connected with ftercompction hole, the another port of ftercompction connecting hole is connected with sprue, and the ftercompction that is connected with sprue connects
The Single port for connecing hole is located at the lower section of taper valve opening.
The valve flowing channel structure of this programme low pressure valve release coordinates ftercompction mechanism with valve core structure, releases low pressure valve
Putting device can carry out ftercompction to fire extinguisher according to actual needs, effectively extend the service life of fire extinguisher.
On the other hand, the characteristics of low pressure valve release of this programme has easy to use, sealing reliability is good, and can have
Effect solves the problems, such as that current low temperature extinguisher valve occurs that extinguisher valve is leaked used in low temperature environment.
Preferably, also including the safe releasing device being arranged on valve body, safe releasing device includes being arranged on valve body
Installing hole on lateral surface, it is arranged on the bottom surface of installing hole and the pressure-releasing hole being connected, the end for being arranged on installing hole with ftercompction hole
Spacing body, the rubber mounting blocks that are arranged in installing hole in mouthful and it is arranged on pre- between spacing body and rubber mounting blocks
Tight compression spring, the rubber press for sealing pressure-releasing hole is provided with towards the end face of the rubber mounting blocks of pressure-releasing hole.This programme
Safe releasing device can play a part of automatic release of pressure, when the air pressure in fire extinguisher bottle body exceed setting value when, release safely
Put device and automatically turn on pressure release；When in pressure pressure release to normal range (NR), then it is automatically switched off, pacifies so as to improve using for fire extinguisher
Full performance.
Preferably, the port edge of the pressure-releasing hole being connected with installing hole bottom surface is provided with a circle annular protrusion, the rubber
Briquetting is pressed on annular protrusion end.This programme structure is conducive to improving the sealing reliability that rubber press seals pressure-releasing hole.
Preferably, spacing body is connected by screw thread with installing hole, it is spacing that the medial surface of spacing body is provided with body
Block, towards the end face of the rubber mounting blocks of spacing body spring retainer boss is provided with, and one end of the pretension compression spring is stretched
Enter in stop collar body and be resisted against on body limited block, the other end of pretension compression spring is set on spring retainer boss.This
Scenario-frame is conducive to improving the job stability of safe releasing device.
Preferably, sprue includes：The upper valve opening coordinated with sealing ring on valve rod, sealing ring and upper valve on the valve rod
Hole cooperatively forms and is tightly connected；Middle valve opening below upper valve opening, the internal diameter of the middle valve opening is more than the internal diameter of upper valve opening, institute
State valve outlet to be connected with middle valve opening；And the lower valve opening below middle valve opening, the internal diameter of the lower valve opening is more than middle valve
The internal diameter in hole；The cone valve hole position valve opening and lower valve opening between middle valve opening and lower valve opening and in connection.
Preferably, also including vertical pipe sleeve, standpipe is set in the lower port of sprue, sets on the medial surface of vertical pipe sleeve
There is pipe box position limiting convex ring；And the (the first back-moving spring being arranged in vertical pipe sleeve, the lower end of (the first back-moving spring is resisted against pipe box
On position limiting convex ring, the upper end of (the 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 of door makes, and can ensure that the sealing reliability of valve.
Preferably, also including fire extinguisher operation handlebar, fire extinguisher operation handlebar includes being fixedly installed on the carrying handle on valve body top
And the pressure handle being hinged on by jointed shaft on carrying handle, the valve rod top that the pressure handle is located at.
Preferably, also filling exhaust sealing structure including self adaptation, the valve rod lateral surface is provided with sealing ring on valve rod
Mounting groove, sealing ring is arranged on valve rod in sealing ring mounting groove on the valve rod, is provided with annular inflatable on valve rod in sealing ring
Chamber, sealing ring lateral surface is additionally provided with the inflation intubation being connected with annular inflatable chamber on valve rod；The self adaptation fills exhaust sealing
Structure includes the main channel in self adaptation on off mechanism, pressure type inflatable structure and valve rod, and the pressure type inflatable structure includes arranging
The radial direction shoulder hole radially extended on valve rod and along valve rod, radial direction ladder hole position sealing ring and valve rod lower seal on valve rod
Between, radial direction shoulder 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 provided with radial hole limited block,
Outer radial hole is additionally provided with piston body, and piston body is located 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 self adaptation on off mechanism include being fixedly installed on vertical valve pocket on valve body,
The first interface that is arranged on vertical valve pocket lateral surface and is connected with vertical valve pocket medial surface and second interface, it is plugged in vertically
Sealing ring and valve pocket bar lower seal on valve pocket bar in valve pocket and the valve pocket bar that is arranged on valve pocket bar, the valve pocket bar it is upper
End is provided with valve pocket bar upper limit position block, and the lower end of valve pocket bar is provided 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 is located at vertical valve pocket lower section, on valve pocket bar and positioned at valve pocket bar upper limit position block and vertical valve pocket
Upper surface between be provided with the 3rd back-moving spring, the upper end of the valve pocket bar is located at the underface of pressure 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 by radially connected hole between the main channel and the bottom surface of upper sealing ring mounting groove, the inflation
Intubation is plugged in radially connected hole, and inflation intubation is tightly connected with radially connected hole, and the lateral surface top of the valve rod sets
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 connecting flexible pipe.
Preferably, the lateral surface of valve rod is provided 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 surface of vertical valve pocket, described first connects
Mouth and second interface are located on valve pocket bar between sealing ring and valve pocket bar lower seal；When valve stem spacing block is resisted against the upper of valve body
When on end face, sealing ring is located between first interface and second interface be located on valve pocket bar.
Preferably, being provided with screen pack in ftercompction connecting hole.
The invention has the beneficial effects as follows：
First, according to actual needs ftercompction can be carried out to fire extinguisher, effectively extend the service life of fire extinguisher.
Second, with easy to use, sealing reliability is good, can the current low temperature extinguisher valve of effectively solving in low temperature ring
The problem that extinguisher valve is leaked occurs used in border.
Description of the drawings
Fig. 1 is a kind of structural representation of the low pressure valve release of embodiments of the invention 1.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is a kind of structural representation of the low pressure valve release of embodiments of the invention 3.
Fig. 4 is the partial enlarged drawing in Fig. 3 at A.
Fig. 5 is the partial enlarged drawing in Fig. 4 at B.
Fig. 6 is a kind of structural representation at the self adaptation on off mechanism of embodiments of the invention 3.
In figure：
Valve body 1；
Valve element 2, valve rod 2.1, sealing ring 2.2 on valve rod, valve rod lower seal 2.3, annular inflatable chamber 2.4 inflates 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；
(the first back-moving spring 4；
Vertical pipe sleeve 5, pipe box position limiting convex ring 5.1；
Fire extinguisher operation handlebar 6, carrying handle 6.1, pressure handle 6.2, jointed shaft 6.3, safety plug 6.4；
Self adaptation on off mechanism 7, vertical valve pocket 7.1, valve pocket bar 7.2 connects flexible pipe 7.3, second interface 7.4, first interface
7.5, sealing ring 7.6 on valve pocket bar, the 3rd back-moving spring 7.7, valve pocket bar upper limit position block 7.8, valve pocket bar lower seal 7.9, valve
Loop 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, Rotary-table 8.4, piston body 8.5,
Second back-moving spring 8.6, round platform 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, screen pack 10.3 inflates check valve 10.4；
Safe releasing device 11, body limited block 11.1, spacing body 11.2, pretension compression spring 11.3, rubber mounting blocks
11.4, rubber press 11.5, annular protrusion 11.6, pressure-releasing hole 11.7.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described in further detail with specific embodiment：
Embodiment 1：As shown in figure 1, a kind of low pressure valve release includes valve body 1；The valve flowing channel 3 being arranged in valve body；With
In the valve element 2 of application valve body runner break-make；Vertical pipe sleeve 5；The (the first back-moving spring 4 being arranged in vertical pipe sleeve；It is arranged on valve body
Ftercompction mechanism 10；The safe releasing device 11 and fire extinguisher operation handlebar 6 being arranged on valve body.
Valve flowing channel includes sprue through valve body upper and lower ends, is arranged on valve body lateral surface and with sprue and connects
Valve outlet 3.3.The lower port of sprue constitutes valve body import.Sprue is including upper valve opening 3.1, below upper valve opening
The taper valve opening 3.4 that middle valve opening 3.2, internal diameter is gradually reduced from bottom to top and the lower valve opening 3.5 below middle valve opening.Middle valve
Internal diameter of the internal diameter in hole more than upper valve opening.Internal diameter of the internal diameter of lower valve opening more than middle valve opening.Cone valve hole position is in middle valve opening with
Between valve opening and connect in valve opening and lower valve opening.Valve outlet is connected with middle valve opening.
Valve element includes the valve rod 2.1 being plugged in sprue, is arranged on valve rod and constitutes what is be tightly connected with sprue
On valve rod sealing ring 2.2 be arranged on valve rod and constitute with taper valve opening the valve rod lower seal 2.3 that is tightly connected.Valve body goes out
Mouth is located on valve rod between sealing ring 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 provided with up raised hemisphere jut.Sealing ring is located at the upper of valve rod lower seal on valve rod
Side.Sealing ring is located at the top of taper valve opening on valve rod.Sealing ring is cooperatively formed with upper valve opening and is tightly connected on valve rod.Under valve rod
Sealing ring is cooperatively formed with taper valve opening and is tightly connected.Valve rod lower seal be cylindric body, the upper end of valve rod lower seal
Face outward flange is provided with rounding.
Standpipe is set in the lower port of sprue, is threaded connection between vertical pipe sleeve and sprue.Vertical pipe sleeve
Medial surface is provided with pipe box position limiting convex ring 5.1.(the first back-moving spring is to go up little Pagoda-shaped spring greatly under internal diameter.First reset bullet
The lower end of spring is resisted against on pipe box position limiting convex ring, and the upper end of (the first back-moving spring is resisted against the lower end of valve rod.
Fire extinguisher operation handlebar includes being fixedly installed on the carrying handle 6.1 on valve body top and is hinged on carrying handle by jointed shaft 6.3
On pressure handle 6.2.Safety plug 6.4 is inserted between carrying handle and pressure handle.The valve rod top that pressure 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 is cut off with valve body import.
When valve rod moves down along sprue and valve rod lower seal is separated with the inner conical surface of taper valve opening, valve body goes out
Mouth is connected with 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 on ftercompction
Check valve 10.4 and the ftercompction connecting hole 10.2 being arranged in valve body are inflated in hole.Screen pack is provided with ftercompction connecting hole
10.3.The axis in ftercompction hole is perpendicular with valve rod axis.Inflation check valve is threaded connection with ftercompction hole.The present embodiment fills
Gas check valve is gaseous core.It is tightly connected by unidirectional valve seals between inflation check valve and ftercompction hole.The one of ftercompction connecting hole
Port is connected with ftercompction hole, and the Single port of 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 of 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 installing hole, be arranged on the bottom surface of installing hole and with
The connected pressure-releasing hole 11.7 in ftercompction hole, the spacing body 11.2 being arranged in the port of installing hole, the rubber being arranged in installing hole
Glue mounting blocks 11.4 and the pretension compression spring 11.3 being arranged between spacing body and rubber mounting blocks.Installing hole, pressure-releasing hole
It is coaxially disposed with ftercompction hole.Spacing body is located at the opposite sides of rubber mounting blocks with pressure-releasing hole.Spacing body by screw thread with
Installing hole is connected, and the medial surface of spacing body is provided with body limited block 11.1.Towards the end of the rubber mounting blocks of spacing body
Face is provided with spring retainer boss.Stretch in stop collar body and be resisted against on body limited block, in advance in one end of pretension compression spring
The other end of tight compression spring is set on spring retainer boss.The port edge of the pressure-releasing hole being connected with installing hole bottom surface is provided with
One circle annular protrusion 11.6.The rubber press for sealing pressure-releasing hole is provided 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 is connected with the upper port of fire extinguisher bottle by thread seal, valve body import with go out
The intracavity inter-connection of firearm tank.
When safety plug is plugged between carrying handle and pressure handle, low pressure valve release is closed；Now, first answer
Valve rod up jack-up is made valve rod lower seal abut with the inner conical surface of taper valve opening connected by position spring, valve outlet and valve body
Import is cut off, and low pressure valve release is closed.
When low pressure valve release is closed, 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 sealing ring does not produce shadow to extinguisher valve leakage problem
Ring.
When low pressure valve release is closed, due to the internal diameter of taper valve opening it is gradually less from bottom to top, when
(the first back-moving spring makes valve rod lower seal abut with the inner conical surface of taper valve opening when being connected, and valve rod lower seal is by pressurized receipts
Contracting, forms larger contact area and the inner conical surface of taper valve opening between, makes to be formed between valve rod lower seal and taper valve opening
More stably, reliable sealing structure；And valve rod lower seal is more up moved, then between valve rod lower seal and taper valve opening
Extruding force it is bigger, the contact area between the inner conical surface of valve rod lower seal and taper valve opening is bigger, and sealing structure is more reliable；
Thus asking for extinguisher valve leakage can be occurred used in low temperature environment with the current low temperature extinguisher valve of effectively solving
Topic.
When in use, first, safety plug is extracted, then, it is only necessary to press down valve rod（Will pressure handle push, you can
Valve rod is pressed down）, valve rod lower seal is separated with the inner conical surface of taper valve opening, then valve outlet is connected with valve body import,
That is cocoa Open valve, its is easy to use.
On the other hand, when fire extinguisher needs ftercompction, operator can be by ftercompction hole to ftercompction in fire extinguisher.In ftercompction
During, when the air pressure in fire extinguisher bottle body exceedes 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 switched off.
Embodiment 2：A kind of installation method of low pressure valve release, the concrete knot of the low pressure valve release of the present embodiment
Structure is with reference to embodiment 1：The installation method of low pressure valve release is comprised the following steps：
First：Safe releasing device is installed on valve body：First, rubber press is bonded and fixed on rubber mounting blocks；Connect
, rubber mounting blocks are put in installing hole；Followed by pretension compression spring is put in installing hole；Finally, by spacing body
In installing hole, spacing body is threaded connection with installing hole.Stretch in stop collar body one end of pretension compression spring
And be resisted against on body limited block, the other end of pretension compression spring is set on spring retainer boss.Rubber press is pressed on
On the end of annular protrusion.
Ftercompction mechanism is installed on valve body：Inflation check valve is installed in ftercompction hole, check valve and ftercompction hole is inflated
It is threaded connection.
Valve element is installed on valve body：By in lower port insertion sprue of the valve rod by sprue, the upper end of valve rod passes through
Positioned at the top of valve body, sealing ring is cooperatively formed with upper valve opening and is tightly connected on valve rod, and valve rod lower seal is matched somebody with somebody with taper valve opening
Close formation to be tightly connected.
Second, (the first back-moving spring vertically to be inserted in vertical pipe sleeve, it is spacing that the lower end of (the first back-moving spring is supported in pipe box
On bulge loop；Then, vertical pipe sleeve is installed in the lower port of sprue, vertical pipe sleeve is connected with the lower port of sprue by screw thread
Connect, after installation, the upper end of (the first back-moving spring acts against the lower end of valve rod, and (the first back-moving spring is in compressive state.
Embodiment 3：With reference to embodiment 1, its difference is remaining structure of the present embodiment：
As shown in Figure 2 and Figure 3, a kind of low pressure valve release includes also filling exhaust sealing structure including self adaptation.Valve rod lateral surface
It is provided with sealing ring mounting groove on valve rod.Sealing ring is arranged on valve rod in sealing ring mounting groove on valve rod.Sealing ring on valve rod
Inside it is provided with annular inflatable chamber 2.4.Sealing ring lateral surface is additionally provided with the inflation intubation 2.5 being connected with annular inflatable chamber on valve rod.
Self adaptation fills exhaust sealing structure including the main channel in self adaptation 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 direction ladder for being arranged on valve rod and radially extending along valve rod
Hole.Radial direction ladder hole position is on valve rod between sealing ring and valve rod lower seal.Radial direction shoulder 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 is coaxially disposed with outer radial hole.Be additionally provided between interior radial hole and outer radial hole connection in radial hole with it is outer
The taper connection hole 8.2 of radial hole.The internal diameter in taper connection hole is reduced inside by outer radial hole between radial hole direction.Outer radial
The medial surface in hole is provided with radial hole limited block 8.8.Outer radial hole is additionally provided with piston body 8.5.It is spacing that piston body is located at radial hole
Between block and interior radial hole.Second back-moving spring 8.6 is additionally provided between the bottom surface of piston body and interior radial hole.The end face of piston body
On be additionally provided with taper connection hole coordinate Rotary-table 8.4.Rotary-table is located at the opposite sides of piston body with radial hole limited block.
The lateral surface of Rotary-table is provided with and cooperatively forms the round platform body sealing ring 8.7 of sealing structure with taper connection hole.Outside piston body
Side is provided with and cooperatively forms the piston body sealing ring of sealing structure with outer radial hole.
As shown in Fig. 2, Fig. 3, Fig. 5, self adaptation on off mechanism includes the vertical valve pocket 7.1 being fixedly installed on valve body, sets
The first interface 7.5 put on vertical valve pocket lateral surface and be connected with vertical valve pocket medial surface and second interface 7.4, it is plugged in
Sealing ring 7.6 and valve pocket bar lower seal 7.9 on valve pocket bar 7.2 vertical in valve pocket and the valve pocket bar that is arranged on valve pocket bar.
Vertically 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 provided with valve pocket
Bar upper limit position block 7.8.The lower end of valve pocket bar is provided 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 vertical valve pocket lower section.It is on valve pocket bar and upper with vertical valve pocket positioned at valve pocket bar upper limit position block
The 3rd back-moving spring 7.7 is provided between end face.The upper end of valve pocket bar is located at the underface of pressure handle.Vertically valve pocket is located at valve rod with 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 by radially connected hole 9.1 between main channel and the bottom surface of upper sealing ring mounting groove.Inflation intubation is plugged
In radially connected hole, and inflation intubation is 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 provided with the upper connecting hole 9.2 being connected with main channel.The lateral surface of valve rod is provided 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 by connection flexible pipe 7.3 between second interface and upper connecting hole.
As shown in Fig. 3, Fig. 5, when valve pocket bar lower position block is resisted against on the lower surface of vertical valve pocket, first interface and
Two interfaces are located on valve pocket bar between sealing ring and valve pocket bar lower seal.
When valve stem spacing block is resisted against on the upper surface of valve body, sealing ring connects positioned at first interface with second on valve pocket bar
Between mouth is located at, valve rod lower seal is separated with the inner conical surface of taper valve opening.
The course of work of the low pressure valve release of the present embodiment is with reference to embodiment, and its difference is as follows：
Although when low pressure valve release is closed, the sealing structure between valve rod lower seal and taper valve opening is determined
The leakage problem of low pressure valve release is determined, the sealing structure of upper sealing ring does not produce shadow to extinguisher valve leakage problem
Ring；But during fire extinguisher use（Valve rod lower seal is separated with the inner conical surface of taper valve opening）, on valve rod sealing ring with it is upper
The reliability of the sealing structure formed between valve opening, then directly affect normally using for fire extinguisher.Conventional fire extinguisher was being used
Cheng Zhong, especially used in low temperature environment during occur that because on the sealing structure between sealing ring and upper valve opening is unstable
It is fixed, and occur leakage between upper sealing ring and upper valve opening, affect the normal problem for using of fire extinguisher；The present embodiment is directed to this
One problem is improved, effectively solving this problem, is further ensured that normally using for fire extinguisher.
When fire extinguisher uses process, operator presses down pressure handle.During pressure handle is pressed down, pressure handle elder generation and valve
The upper-end contact of loop bar, valve pocket bar is pressed down；Then, pressure handle again with the upper-end contact of valve rod, valve rod is pressed down, until valve
Till bar limited block is resisted against on the upper surface of valve body, now, valve rod lower seal is separated with the inner conical surface of taper valve opening, is opened
Extinguisher valve.When valve stem spacing block is resisted against on the upper surface of valve body, sealing ring is located at first interface and the on valve pocket bar
Between two interfaces are located at, so as to first interface and second interface be cut off.
Opening extinguisher valve behind the door, the main channel and fire extinguisher inner chamber on valve rod between sealing ring and valve rod lower seal
It is connected（Main channel on valve rod between sealing ring and valve rod lower seal is identical with the pressure in fire extinguisher, in high pressure shape
State）, piston body will be moved inside under ambient pressure effect, till being resisted against on taper connection hole；In this process
Piston body makes sealing ring expansion on valve rod by the annular inflatable chamber of sealing ring on the gas press-in valve rod in outer radial hole, from
And ensure valve rod between sealing ring and upper valve opening formed sealing structure reliability, it is to avoid because upper sealing ring and upper valve opening it
Between sealing structure it is unstable, and between upper sealing ring and upper valve opening occur leakage, affect fire extinguisher it is normal use ask
Topic.
When fire extinguisher is stopped using, operator's release pressure handle, now in the presence of the 3rd back-moving spring, valve pocket bar will
Upper shifting resets, i.e., valve pocket bar lower position block is resisted against on the lower surface of vertical valve pocket, and now, first interface is located at second interface
On valve pocket bar between sealing ring and valve pocket bar lower seal, the annular inflatable chamber of sealing ring on valve rod is made by main channel, connection
Flexible pipe, second interface and first interface are in communication with the outside, so that sealing ring shrinks on valve rod.When sealing ring shrinks on valve rod
Afterwards, in the presence of (the first back-moving spring, valve rod will up jack-up, valve rod lower seal is abutted with the inner conical surface of taper valve opening
It is connected, valve outlet is cut off with valve body import, and low pressure valve release is closed again.
Claims (10)
1. a kind of low pressure valve release, is characterized in that, including：
Valve body；
The valve flowing channel being arranged in valve body, valve flowing channel includes running through the sprue of valve body upper and lower ends and is arranged on outside valve body
The valve outlet connected on side and with sprue, the lower port of sprue constitutes valve body import, sprue include in without leave under
And on the taper valve opening that is gradually reduced；
For the valve element of application valve body runner break-make, valve element include be plugged in sprue valve rod, be arranged on valve rod and with
Sprue constitutes sealing ring on the valve rod that is tightly connected and is arranged on valve rod and constitutes with taper valve opening the valve rod that is tightly connected
Lower seal, the valve outlet is located on valve rod between sealing ring and valve rod lower seal；And
The ftercompction mechanism being arranged on valve body, ftercompction mechanism includes the ftercompction hole being arranged on valve body lateral surface, is arranged on ftercompction
Check valve and the ftercompction connecting hole being arranged in valve body are inflated in hole, the Single port of ftercompction connecting hole is connected with ftercompction hole, mends
The another port of pressure connecting hole is connected with sprue, and the Single port of the ftercompction connecting hole being connected with sprue is located at taper valve opening
Lower section.
2. low pressure valve release according to claim 1, is characterized in that, also include：
The safe releasing device being arranged on valve body, safe releasing device includes the installing hole being arranged on valve body lateral surface, sets
The pressure-releasing hole put on the bottom surface of installing hole and be connected with ftercompction hole, the spacing body, the setting that are arranged in the port of installing hole
Rubber mounting blocks in installing hole and the pretension compression spring being arranged between spacing body and rubber mounting blocks, towards release of pressure
The end face of the rubber mounting blocks in hole is provided with the rubber press for sealing pressure-releasing hole.
3. low pressure valve release according to claim 2, is characterized in that, the end of the pressure-releasing hole being connected with installing hole bottom surface
Mouth edge is provided with a circle annular protrusion, and the rubber press is pressed on the end of annular protrusion.
4. the low pressure valve release according to Claims 2 or 3, is characterized in that, the spacing body is by screw thread and peace
Dress hole is connected, and the medial surface of spacing body is provided with body limited block, sets towards on the end face of the rubber mounting blocks of spacing body
Stretch in stop collar body and be resisted against on body limited block, pretension in the one end for having spring retainer boss, the pretension compression spring
The other end of compression spring is set on spring retainer boss.
5. the low pressure valve release according to claim 1 or 2 or 3, is characterized in that, the sprue includes：
The upper valve opening coordinated with sealing ring on valve rod, sealing ring is cooperatively formed with upper valve opening and is tightly connected on the valve rod；
Middle valve opening below upper valve opening, the internal diameter of the middle valve opening is more than the internal diameter of upper valve opening, and the valve outlet is with
Valve opening is connected；And
Lower valve opening below middle valve opening, the internal diameter of the lower valve opening is more than the internal diameter of middle valve opening；
The cone valve hole position valve opening and lower valve opening between middle valve opening and lower valve opening and in connection.
6. the low pressure valve release according to claim 1 or 2 or 3, is characterized in that, also include：
Vertical pipe sleeve, standpipe is set in the lower port of sprue, and the medial surface of vertical pipe sleeve is provided with pipe box position limiting convex ring；And
The (the first back-moving spring being arranged in vertical pipe sleeve, the lower end of (the first back-moving spring is resisted against on pipe box position limiting convex ring, and first
The upper end of back-moving spring is resisted against the lower end of valve rod.
7. low pressure valve release according to claim 6, is characterized in that, also including fire extinguisher operation handlebar, fire extinguisher behaviour
Make the pressure handle being hinged on including the carrying handle for being fixedly installed on valve body top and by jointed shaft on carrying handle, what the pressure handle was located at
Valve rod top.
8. low pressure valve release according to claim 7, is characterized in that, also fill exhaust sealing structure including self adaptation,
The valve rod lateral surface is provided with sealing ring mounting groove on valve rod, and sealing ring is arranged on sealing ring on valve rod and installs on the valve rod
In groove, annular inflatable chamber is provided with valve rod in sealing ring, sealing ring lateral surface is additionally provided with and is connected with annular inflatable chamber on valve rod
Inflation intubation；
The self adaptation fills exhaust sealing structure including the main channel in self adaptation on off mechanism, pressure type inflatable structure and valve rod,
The pressure type inflatable structure includes the radial direction shoulder hole for being arranged on valve rod and radially extending along valve rod, radial direction ladder hole position
On valve rod between sealing ring and valve rod lower seal, radial direction shoulder hole includes interior radial hole and is connected with valve rod lateral surface
Outer radial hole, one end of 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 provided 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, between the bottom surface of piston body and interior radial hole second back-moving spring is additionally provided with；
The self adaptation on off mechanism includes the vertical valve pocket being fixedly installed on valve body, is arranged on vertical valve pocket lateral surface simultaneously
The first interface that is connected with vertical valve pocket medial surface and second interface, the valve pocket bar being plugged in vertical valve pocket and it is arranged on valve
Sealing ring and valve pocket bar lower seal on valve pocket bar on loop bar, the upper end of the valve pocket bar is provided with valve pocket bar upper limit position block, valve
The lower end of loop bar is provided with valve pocket bar lower position block, and valve pocket bar upper limit position block is located at vertical valve pocket top, valve pocket bar lower position block position
In vertical valve pocket lower section, on valve pocket bar and positioned at being provided with the 3rd reset between valve pocket bar upper limit position block and the upper surface of vertical valve pocket
Spring, the upper end of the valve pocket bar is located at the underface of pressure 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
State and be connected by radially connected hole between main channel and the bottom surface of upper sealing ring mounting groove, the inflation intubation is plugged in radially
In connecting hole, and inflation intubation is tightly connected with radially connected hole, and the lateral surface top of the valve rod is provided with and is connected with main channel
Logical upper connecting hole, upper connecting hole is located at the top of valve body, close by connection flexible pipe between the second interface and upper connecting hole
Envelope connection.
9. low pressure valve release according to claim 8, is characterized in that, the lateral surface of the valve rod is provided with valve rod limit
Position block, valve stem spacing block is 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 is supported
When leaning against on the lower surface of vertical valve pocket, it is close with valve pocket bar that the first interface is located at sealing ring on valve pocket bar with second interface
Between seal；
When valve stem spacing block is resisted against on the upper surface of valve body, sealing ring is located at first interface and second interface position on valve pocket bar
Between.
10. the low pressure valve release according to claim 1 or 2 or 3, is characterized in that, be provided with the ftercompction connecting hole
Screen pack.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106621130A true CN106621130A (en) | 2017-05-10 |
| CN106621130B CN106621130B (en) | 2019-03-29 |
Family
ID=58807197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611009534.6A Active CN106621130B (en) | 2016-11-16 | 2016-11-16 | Low pressure valve release and installation method |
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| Country | Link |
|---|---|
| CN (1) | CN106621130B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113383187A (en) * | 2018-11-01 | 2021-09-10 | 伊利诺斯工具制品有限公司 | Pressure air lock |
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| CN2094360U (en) * | 1991-05-14 | 1992-01-29 | 象山防火器配厂 | Pressure storage fire-extinguisher head |
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| 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 | 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 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113383187A (en) * | 2018-11-01 | 2021-09-10 | 伊利诺斯工具制品有限公司 | Pressure air lock |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106621130B (en) | 2019-03-29 |
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