CN209316882U - The portable carbon dioxide extinguisher of the locking type in elastic component foundation ring - Google Patents

Abstract

The utility model provides the portable carbon dioxide extinguisher of the locking type in elastic component foundation ring, belongs to fire extinguisher field.Including bottle body, device head and connecting tube, bottle body is removably connected to device head, device head includes valve body, handle, carrying handle, valve rod, sealing element, casing and spring, body base has connector, valve body-side has delivery outlet, body top has sliding mouth, also there is the adapter cavity for being at least connected to connector and delivery outlet on valve body, handle and carrying handle are located at body top, valve rod slips in sliding mouth, the upper end of valve rod is pierced by sliding mouth, the lower end of valve rod is connected with sealing element, the lower end of sealing element has spring, casing and connecting tube are connected at connector, it is characterized in that, there is the locking mechanism for making that at least one circle is locked on spring bottom end between casing and connecting tube.This fire extinguisher is conducive to maintain the stability of elastic component, is conducive to the normal use of maintainer head, enhances the service life of device head.

Description

The portable carbon dioxide extinguisher of the locking type in elastic component foundation ring

Technical field

The utility model belongs to fire extinguisher field, is related to the portable carbon dioxide extinguisher of the locking type in elastic component foundation ring.

Background technique

Carbon dioxide extinguishing agent is a kind of extinguishing chemical with more than 100 years history, cheap, and acquisition, preparation are easy, It relies primarily on smothering action and part cooling effect fire extinguishing.Carbon dioxide density with higher, about the 1.5 of air times. Under normal pressure, the carbon dioxide of liquid can vaporize immediately, and the liquid carbon dioxide of general 1kg can produce about 0.5 cubic metre of gas Body.Thus, when fire extinguishing, carbon dioxide gas can exclude air and be enclosed in the surface of burning objects or be distributed in more closed In space, the oxygen concentration around combustible or in protective zone is reduced, smothering action is generated and puts out a fire.In addition, carbon dioxide from When being sprayed in storage container, partial heat can be absorbed from surrounding by liquid rapid vaporization at gas, play cooling effect.

Structurally, carbon dioxide extinguisher includes bottle body and device head, since carbon dioxide extinguishing agent pressure is high, Bottle body is usually integral type bottle body, and the material of bottle body is steel alloy or carbon steel.Device head, that is, extinguisher valve, portable titanium dioxide Device head in carbon fire extinguisher is generally made of valve body, valve rod, sealing element, elastic component, casing, pressure-raising handle, pressure gauge and jet pipe, is mentioned Handle is carrying handle and handle respectively, and carrying handle is fixed on the top of valve body, and handle is hinged with carrying handle, and body top offers sliding slot, Valve stem slides are connected in sliding slot, and valve body is stretched out in the upper end of valve rod can be by the suppressing action of handle, and the lower end connection of valve rod is close Sealing, when handle pushes, valve rod opens sealing element downwards, to keep ejection channel unimpeded, realizes fire-fighting work, elastic component position In in casing and below sealing element, when sealing element is acted on by handle to be opened downwards, elastic component is compressed at this time, completes to go out Firer makees release handle, resets in the reset lower seal of elastic component, completes sealing again.Jet pipe is mounted on the spout on valve body Place, sleeve upper end connect valve body, lower end connecting tubes, and the conveying pipe fitting for taking over as extinguishing chemical protrudes into bottle body.Above content It is the general principles of current device head, wherein elastic component is usually spring, and the fixed form of spring is that lower end is resisted against casing at present It is interior, the problem of upper end cap leans against sealing element bottom, therefore the both ends of spring are to directly abut, this just brings stability, when Fire extinguisher is using frequently, and spring is by repeatedly compression and resets, and under the impact of extinguishing chemical, the bottom of spring is likely to occur The case where displacement, may cause in addition, handle unclamps too fast, valve rod and handle contact portion apart from factors such as unreasonable, assembly Spring reset is abnormal, thus the problems such as making spring misplace, therefore current portable carbon dioxide extinguisher it is necessary to It is innovated and is improved.

Summary of the invention

The purpose of this utility model is to provide the locking type in elastic component foundation ring for the above-mentioned problems in the prior art Portable carbon dioxide extinguisher, this elastic component foundation ring portable carbon dioxide extinguisher of locking type are conducive to improve elastic component Stability is conducive to the normal use of maintainer head, enhances the service life of device head, solves elastic component in current device head The problems such as connective stability is insufficient, reduces the service life of device head.

The purpose of this utility model can be realized by the following technical scheme: the portable titanium dioxide of the locking type in elastic component foundation ring Carbon fire extinguisher, including bottle body, device head and connecting tube, the bottle body are removably connected to the device head, the device head include valve body, Handle, carrying handle, valve rod, sealing element, casing and spring, the body base have connector, and the valve body-side has output Mouthful, the body top has sliding mouth, also has the adapter cavity for being at least connected to connector and delivery outlet on the valve body, described Handle and carrying handle are located at the body top, and the valve rod slips in the sliding mouth, and the upper end of the valve rod is pierced by sliding Mouthful, the lower end of the valve rod is connected with the sealing element, and the lower end of the sealing element has the spring, described sleeve pipe and connecting tube It is connected at the connector, which is characterized in that having between described sleeve pipe and connecting tube makes at least one circle on the spring bottom end The locking mechanism being locked；

Wherein, the sealing element can make to form sealing between the adapter cavity and connector.

This fire extinguisher is specific as follows: bottle body is integral type bottle body, can satisfy the use pressure of carbon dioxide extinguisher, bottle Body is that removable seal is connect with device head, and the outer end of connecting tube is connected with device head, and bottom in bottle body is protruded into the inner end of connecting tube, Carrying handle is fixed on the top of valve body, and one end of handle and one end of carrying handle are realized hingedly, therefore carrying handle can not move, and handle can Lift operation is pushed in realization.The substantially process used is to pull up the lock on handle and carrying handle, then presses handle, Card hole is offered with valve rod upper-end contact region on handle, the upper end of valve rod is plugged in card hole, on handle suppressing action valve rod End pushes valve rod band dynamic seal, and connector, adapter cavity and delivery outlet are connected state at this time, the fire extinguishing in fire extinguisher bottle body Agent enters connecting tube by connecting tube inner end, by connector, adapter cavity, finally sprays from delivery outlet.When unclamping handle, in bullet Under the reset response of spring, sealing element realizes sealing again, makes to form sealing between adapter cavity and connector.On spring bottom end at least One circle is locked by locking mechanism, from traditional bottom end against unlike structure: can make the bottom of spring by locking mechanism End realization is stable to be locked, and in this kind locking, even if handle release is too fast, valve rod and handle contact portion distance are not The factors such as rationally, since spring bottom end has been locked, spring will not be moved, and extinguishing chemical to the impact of spring not yet Positional shift can be caused to spring, there is outstanding stability, realized the long-term normal use of device head, ensured the use of device head Service life.Adapter cavity is connected to sliding mouth at top, and bottom is connected to connector, and side is connected to delivery outlet, and valve rod is inserted into from sliding mouth Enter in connector by adapter cavity, the upper end outer wall of valve rod offers at sealing annular in shape, at sealing in be combined with top Sealing ring, adapter cavity make sliding mouth, connector, delivery outlet be connected state.Since carbon dioxide extinguisher storage pressure is high, Therefore valve body-side also has venting, is equipped with rupture disk in venting, and when bottle body superpressure, rupture disk rupture, pressure is from anti- Seam broken discharge, can prevent bottle body from explosion danger occurs, not repeat specifically, with the explosion-proof knot on existing carbon dioxide extinguisher Structure is identical.

In the above-mentioned portable carbon dioxide extinguisher of the locking type in elastic component foundation ring, the upper end outer wall thread of described sleeve pipe connects It connects on the connector inner wall, the upper end of the connecting tube is located in described sleeve pipe lower end, and the locking mechanism includes locking Edge and locking ring cavity, described to lock along annular in shape and integrated molding on described sleeve pipe inner wall, the upper surface of the connecting tube The locking ring cavity is formed between lower end surface with the locking, at least one circle is pressed in the locking on the spring bottom end In ring cavity.

In the above-mentioned portable carbon dioxide extinguisher of the locking type in elastic component foundation ring, the upper end outer wall thread of the connecting tube It is connected on the lower end inner wall of described sleeve pipe.

Connecting tube is made of plastics, and casing is copper pipe, and the height for locking ring cavity can be according to as the screw thread of connecting tube revolves Turn to realize adjustment, when install spring, several enclose is chosen into the bottom end of spring and is stuck in that retaining ring is intracavitary, and then rotating connecting tube again makes Upper end of connecting tube face locking spring bottom end, Spring Card is after retaining ring is intracavitary, one section the most coherent with locking ring cavity on spring It is easy the obstruction by locking edge, but the basic of spring almost can be ignored using influence.This locking mechanism utilizes company Adapter tube is naturally threadedly coupled movement and constitutes locking ring cavity, and smart structural design is novel.

In the above-mentioned portable carbon dioxide extinguisher of the locking type in elastic component foundation ring, the spring is tower-shaped spring.

Tower-shaped spring upper end to lower end is flaring, and load is big, and it is intracavitary that the flared end of tower-shaped spring is located at retaining ring.Tower-shaped bullet This structure of spring is conducive to be installed retaining ring is intracavitary.This spring is high-strength spring, be can satisfy in foundation ring clamping When pressure requirements.

In the above-mentioned portable carbon dioxide extinguisher of the locking type in elastic component foundation ring, the sealing element includes gasket, sealing Pad and fixing seat, keep off edge integrally formed with ring-type on the valve rod lower end outer wall, and the gasket and gasket are set in described The lower end of valve rod and by cyclic annular gear along realize it is axial limit, the fixing seat has threaded hole, institute in dome shape and center State fixing seat and the valve rod lower end be threaded in by threaded hole, the gasket be located at the gasket and fixing seat it Between, at least gasket can be sealed to being formed between adapter cavity and connector in the gasket and gasket.

It is followed successively by gasket, gasket and fixing seat along the upper end of valve rod to lower extreme direction, the effect on ring-type gear edge is to prevent Gasket and gasket continue up, and the effect of fixing seat is lock washer and gasket, therefore ring-type keeps off edge and fixing seat Play the role of axial limiting to gasket and gasket jointly, the lid mouth internal diameter of fixing seat is slightly larger than the outer diameter of gasket.It is fixed Seat is generally made of plastics, and gasket is made of rubber.

In the above-mentioned portable carbon dioxide extinguisher of the locking type in elastic component foundation ring, the valve interior wall is integrally formed with being in Circular sealing ring, the adapter cavity are located above the sealing ring, and the connector is located at below the sealing ring, described The bottom surface of sealing ring has primary sealing area annular in shape, and the upper surface of the gasket is enough fitted in the primary sealing area Upper realization sealing.

It in the technical scheme, is single sealing structure, i.e. primary sealing area and gasket between adapter cavity and connector Cooperation.It has been able to ensure sealing performance by the first sealing structure.

In the above-mentioned portable carbon dioxide extinguisher of the locking type in elastic component foundation ring, the inner wall of the sealing ring be by down toward The upper secondary sealing area in necking shape, the outer wall of the gasket are matched with the secondary sealing area shape, the outer wall of the gasket It can be fitted on the secondary sealing area and realize sealing.

Gasket in the prior art is usually that plastics or metal are made, and what is played the role of is support, but in this technology In scheme, gasket is identical as the material of gasket and is made of rubber, and thickness is much larger than gasket in the prior art, no Light light plays the role of support, also generates second seals structure by the fitting of the outer wall of this gasket and secondary sealing area, makes Sealing performance further gets a promotion, and secondary sealing area and primary sealing area difference, the former is incline structure, and the latter is plane, Enhance sealing performance in different sealing latitude.

In the above-mentioned portable carbon dioxide extinguisher of the locking type in elastic component foundation ring, the bottom of the fixing seat has downward It protrudes and limiting section cylindrical, the upper end of the spring is set in outside the limiting section.

Limiting section plays the role of guiding and limit, and the upper end of spring is made to be less prone to displacement.

In the above-mentioned portable carbon dioxide extinguisher of the locking type in elastic component foundation ring, the upper end of the bottle body is opening and has There is Connection protrusion protruding upward, the inner wall of the Connection protrusion has screw thread, and the outer wall thread of the connector is connected to institute It states on the inner wall of Connection protrusion.

Connection protrusion realizes the connection of bottle body and device head, and the outer wall thread of connector is wound or smeared with raw material band and sealed Glue is adapted with the high pressure requirement of carbon dioxide extinguisher.

In the above-mentioned portable carbon dioxide extinguisher of the locking type in elastic component foundation ring, it is arranged with outside the Connection protrusion outer Set.

Housing is made of plastics, and the effect being set in outside Connection protrusion is to realize dust-proof, dress to a certain extent It adorns and shines.

The prior art is compared, this elastic component foundation ring portable carbon dioxide extinguisher of locking type has the advantage that

1, the portable carbon dioxide extinguisher of the locking type in this elastic component foundation ring is by locking edge and locking ring cavity to tower-shaped bullet Spring realizes foundation ring locking, and the height change that ring cavity is realized in movement is naturally locked using connecting tube, to realize the lock to spring Tightly, high degree increases the stability of spring, is conducive to the normal use of maintainer head, enhances the service life of device head.

2, the portable carbon dioxide extinguisher of the locking type in this elastic component foundation ring has double sealing structure, is gasket respectively First sealing structure and the second seals structure at gasket at place, can largely avoid gas leakage by double sealing structure Phenomenon.

3, the double sealing structure in the portable carbon dioxide extinguisher of the locking type in this elastic component foundation ring is that different latitude is close Envelope, enhances sealing performance in different sealing latitude.

4, supporting role of the gasket with conventional spacers in the portable carbon dioxide extinguisher of the locking type in this elastic component foundation ring While form second seals structure, smart structural design is novel.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the portable carbon dioxide extinguisher of the locking type in this elastic component foundation ring.

Fig. 2 is the schematic enlarged-scale view that encircled portion is drawn in Fig. 1.

Fig. 3 is the structure section view of valve rod and sealing element in the portable carbon dioxide extinguisher of the locking type in this elastic component foundation ring Figure.

Fig. 4 is subregional structure sectional view in the middle part of the portable carbon dioxide extinguisher of the locking type in this elastic component foundation ring.

Fig. 5 is the schematic enlarged-scale view of B area in Fig. 4.

List of numerals

In figure:

1, bottle body；

1a, Connection protrusion；

2, device head；

2a, valve body；

2a1, connector；

2a2, delivery outlet；

2a3, sliding mouth；

2a4, adapter cavity；

2a6, sealing ring；

2a6a, primary sealing area；

2a6b, secondary sealing area；

2b, handle；

2c, carrying handle；

2d, valve rod；

At 2d1, sealing；

2d2, cyclic annular gear edge；

2e, sealing element；

2e1, gasket；

2e2, gasket；

2e3, fixing seat；

2e3a, limiting section；

2f, casing；

2f1, locking edge；

2g, spring；

3, connecting tube；

4, top sealing ring；

32f, locking ring cavity；

6, housing.

Specific embodiment

Embodiment one

As shown in Figures 1 to 5, the portable carbon dioxide extinguisher of the locking type in this elastic component foundation ring includes bottle body 1, device head 2 With connecting tube 3, bottle body 1 is removably connected to device head 2, and device head 2 includes valve body 2a, handle 2b, carrying handle 2c, valve rod 2d, sealing element 2e, casing 2f and spring 2g, the bottom valve body 2a have connector 2a1, and the side valve body 2a has delivery outlet 2a2, the top valve body 2a With sliding mouth 2a3, also there is the adapter cavity 2a4 of connection connector 2a1 and delivery outlet 2a2, handle 2b and carrying handle on valve body 2a 2c is located at the top of valve body 2a, and valve rod 2d slips in sliding mouth 2a3, and the upper end of valve rod 2d is pierced by sliding mouth 2a3, under valve rod 2d End is connected with sealing element 2e, and the lower end of sealing element 2e has spring 2g, and casing 2f and connecting tube 3 are connected at connector 2a1, casing 2f There is the locking mechanism for making that a circle is locked on the bottom end spring 2g between connecting tube 3；Wherein, sealing element 2e can make adapter cavity Sealing is formed between 2a4 and connector 2a1.The upper end outer wall thread of casing 2f is connected on connector 2a1 inner wall, connecting tube 3 Upper end be located in the lower end casing 2f, locking mechanism include locking along 2f1 and locking ring cavity 32f, lock it is annular in shape along 2f1 and It is integrally formed on casing 2f inner wall, the upper surface of connecting tube 3 and locking form locking ring cavity 32f, bullet between the lower end surface 2f1 A circle is pressed in locking ring cavity 32f on the bottom end spring 2g.The upper end outer wall thread of connecting tube 3 is connected in the lower end of casing 2f On wall.Connecting tube 3 is made of plastics, and casing 2f is copper pipe, and the height of locking ring cavity 32f can be according to the spiral shell with connecting tube 3 Adjustment is realized in line rotation, when installing spring 2g, several circles is chosen in the bottom end of spring 2g and are stuck in locking ring cavity 32f, then again Rotation connecting tube 3 makes the 3 upper surface bottom end locking spring 2g of connecting tube, after spring 2g is stuck in locking ring cavity 32f, spring 2g on and One section of locking ring cavity 32f the most coherent easy obstruction locked along 2f1, but basic use of spring 2g is influenced almost It can be ignored.This locking mechanism is naturally threadedly coupled movement using connecting tube 3 and constitutes locking ring cavity 32f, and structure is set Count ingenious novelty.

Specifically, spring 2g is tower-shaped spring 2g.The upper end tower-shaped spring 2g to lower end is flaring, and load is big, tower-shaped spring The flared end of 2g is located in locking ring cavity 32f.This structure of tower-shaped spring 2g is conducive to be pacified in locking ring cavity 32f Dress.This spring 2g is high-strength spring 2g, can satisfy the pressure requirements in foundation ring clamping.Sealing element 2e includes gasket 2e1, gasket 2e2 and fixing seat 2e3, integrally formed with ring-type gear along 2d2, gasket 2e1 and sealing on valve rod 2d lower end outer wall Pad 2e2 be set in the lower end of valve rod 2d and by cyclic annular gear along 2d2 realize it is axial limit, fixing seat 2e3 in dome shape and Center has threaded hole, and fixing seat 2e3 is threaded in valve rod 2d lower end by threaded hole, and gasket 2e2 is located at gasket Between 2e1 and fixing seat 2e3, gasket 2e2 can be sealed to being formed between adapter cavity 2a4 and connector 2a1.Along valve rod 2d Upper end to lower extreme direction be followed successively by gasket 2e1, gasket 2e2 and fixing seat 2e3, ring-type gear is to prevent from padding along the effect of 2d2 Piece 2e1 and gasket 2e2 are continued up, and the effect of fixing seat 2e3 is lock washer 2e1 and gasket 2e2, therefore cyclic annular Gear plays the role of axial limiting, the lid mouth of fixing seat 2e3 to gasket 2e1 and gasket 2e2 jointly along 2d2 and fixing seat 2e3 Internal diameter is slightly larger than the outer diameter of gasket 2e2.Fixing seat 2e3 is generally made of plastics, and gasket 2e2 is made of rubber.Valve body 2a Inner wall is located above sealing ring 2a6 integrally formed with sealing ring 2a6 annular in shape, adapter cavity 2a4, and connector 2a1 is located at close Below seal ring 2a6, the bottom surface of sealing ring 2a6 has primary sealing area 2a6a annular in shape, and the upper surface of gasket 2e2 is enough pasted It closes and realizes sealing on primary sealing area 2a6a.It in the technical scheme, is single close between adapter cavity 2a4 and connector 2a1 Seal structure, the i.e. cooperation of primary sealing area 2a6a and gasket 2e2.It has been able to ensure leakproofness by the first sealing structure Energy.

Specifically, the bottom of fixing seat 2e3 has downwardly projecting and cylindrical limiting section 2e3a, the upper end of spring 2g It is set in outside limiting section 2e3a.Limiting section 2e3a plays the role of guiding and limit, and the upper end of spring 2g is made to be less prone to displacement. The upper end of bottle body 1 is opening and has Connection protrusion 1a protruding upward, and the inner wall of Connection protrusion 1a has screw thread, connector The outer wall thread of 2a1 is connected on the inner wall of Connection protrusion 1a, and Connection protrusion 1a realizes the connection of bottle body 1 and device head 2, connector Outer wall thread wind or smear sealant with raw material band, be adapted with the high pressure requirement of carbon dioxide extinguisher.Connection protrusion Housing 6 is arranged with outside 1a.Housing 6 is made of plastics, and the effect being set in outside Connection protrusion 1a is to realize to a certain degree On it is dust-proof, decoration and shine.

This fire extinguisher is specific as follows: bottle body 1 is integral type bottle body, can satisfy the use pressure of carbon dioxide extinguisher, Bottle body 1 is that removable seal is connect with device head 2, and the outer end of connecting tube 3 is connected with device head 2, and bottle body is protruded into the inner end of connecting tube 3 Bottom in 1, carrying handle 2c are fixed on the top of valve body 2a, and one end of handle 2b and one end of carrying handle 2c are realized hingedly, therefore carrying handle 2c can not be moved, and handle 2b can be realized pushing lift operation.The substantially process used is by the guarantor on handle 2b and carrying handle 2c Dangerous bolt is pulled up, and then offers card hole with valve rod 2d upper-end contact region on pressing handle 2b, handle 2b, valve rod 2d's is upper End is plugged in card hole, and the upper end handle 2b suppressing action valve rod 2d pushes valve rod 2d band dynamic seal 2e, at this time connector 2a1, adapter cavity 2a4 and delivery outlet 2a2 are connected state, and the extinguishing chemical in fire extinguisher bottle 1 is entered by 3 inner end of connecting tube Connecting tube 3 is finally sprayed from delivery outlet 2a2 by connector 2a1, adapter cavity 2a4.When unclamping handle 2b, spring 2g's Under reset response, sealing element 2e realizes sealing again, makes to form sealing between adapter cavity 2a4 and connector 2a1.The bottom spring 2g A upper circle is held to lock by locking mechanism, from traditional bottom end against unlike structure: spring can be made by locking mechanism The bottom end of 2g realize it is stable be locked, in this kind locking, even if handle 2b unclamps too fast, valve rod 2d and handle 2b Contact portion is apart from the factors such as unreasonable, and since the bottom end spring 2g has been locked, spring 2g will not be moved, and puts out a fire Agent will not cause positional shift to spring 2g to the impact of spring 2g, have outstanding stability, realize that device head 2 is long-term just It is often used, has ensured the service life of device head 2.Adapter cavity 2a4 is connected to sliding mouth 2a3 at top, and bottom is connected to connector 2a1, side are connected to delivery outlet 2a2, and valve rod 2d is inserted through adapter cavity 2a4 from sliding mouth 2a3 and enters in connector 2a1, valve rod The upper end outer wall of 2d offers 2d1 at sealing annular in shape, is combined with top sealing ring 4 at sealing in 2d1, and adapter cavity 2a4 makes Sliding mouth 2a3, connector 2a1, delivery outlet 2a2 are connected state.

Further, since the blast resistance construction in this device head is the prior art, therefore it is not drawn into all Figure of description anti-riot Structure.

Embodiment two

The present embodiment two and embodiment one the difference is that: gasket 2e2 and pad in gasket 2e2 and gasket 2e1 Piece 2e1 can be sealed to being formed between adapter cavity 2a4 and connector 2a1, and the inner wall of sealing ring 2a6 is from the bottom to top in contracting The outer wall of the secondary sealing area 2a6b of the degree of lip-rounding, gasket 2e1 are matched with secondary sealing area 2a6b shape, and the outer wall of gasket 2e1 can It is fitted on secondary sealing area 2a6b and realizes sealing.Gasket 2e1 in the prior art is usually that plastics or metal are made, and is played Be support effect, but in the technical scheme, gasket 2e1 is identical as the material of gasket 2e2 and is made of rubber, and And thickness is much larger than gasket in the prior art, not only light plays the role of support, also passes through the outer wall of this gasket 2e1 and the The fitting of two sealing surface 2a6b generates second seals structure, and sealing performance is made further to get a promotion, secondary sealing area 2a6b and Primary sealing area 2a6a is different, the former is incline structure, and the latter is plane, increases sealing performance in different sealing latitude By force.

Unmentioned detailed structure in present specification, specific part dimension and principle be conventionally known common sense or What those skilled in the art can be derived that by simple selection, it does not repeat them here.

The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.

Claims (10)

1. the portable carbon dioxide extinguisher of the locking type in elastic component foundation ring, including bottle body, device head and connecting tube, the bottle body are removable It unloads and is connected to the device head, the device head includes valve body, handle, carrying handle, valve rod, sealing element, casing and spring, the valve body bottom Portion has connector, and the valve body-side has delivery outlet, and the body top has sliding mouth, also has extremely on the valve body It is connected to the adapter cavity of connector and delivery outlet less, the handle and carrying handle are located at the body top, and the valve rod is slipped in institute It states in sliding mouth, the upper end of the valve rod is pierced by sliding mouth, and the lower end of the valve rod is connected with the sealing element, the sealing element Lower end has the spring, and described sleeve pipe and connecting tube are connected at the connector, which is characterized in that described sleeve pipe and connecting tube Between there is the locking mechanism for making on the spring bottom end at least one circle be locked；

Wherein, the sealing element can make to form sealing between the adapter cavity and connector.

2. the portable carbon dioxide extinguisher of the locking type in elastic component foundation ring according to claim 1, which is characterized in that described The upper end outer wall thread of casing is connected on the connector inner wall, and the upper end of the connecting tube is located in described sleeve pipe lower end, The locking mechanism includes locking edge and locking ring cavity, and the locking is along annular in shape and integrated molding in described sleeve pipe inner wall On, the upper surface of the connecting tube and the locking form the locking ring cavity between lower end surface, the spring bottom end up to It is intracavitary that a few circle is pressed in the retaining ring.

3. the portable carbon dioxide extinguisher of the locking type in elastic component foundation ring according to claim 2, which is characterized in that described The upper end outer wall thread of connecting tube is connected on the lower end inner wall of described sleeve pipe.

4. the portable carbon dioxide extinguisher of the locking type in elastic component foundation ring according to claim 1, which is characterized in that described Spring is tower-shaped spring.

5. the portable carbon dioxide extinguisher of the locking type in elastic component foundation ring according to claim 1, which is characterized in that described Sealing element includes gasket, gasket and fixing seat, keeps off edge integrally formed with ring-type on the valve rod lower end outer wall, the gasket and Gasket be set in the lower end of the valve rod and by cyclic annular gear along realize it is axial limit, the fixing seat in dome shape and Center has threaded hole, and the fixing seat is threaded in the valve rod lower end by threaded hole, and the gasket is located at Between the gasket and fixing seat, at least gasket can be formed between adapter cavity and connector in the gasket and gasket Sealing.

6. the portable carbon dioxide extinguisher of the locking type in elastic component foundation ring according to claim 5, which is characterized in that described Valve interior wall is located above the sealing ring integrally formed with sealing ring annular in shape, the adapter cavity, the connector position Below the sealing ring, the bottom surface of the sealing ring has primary sealing area annular in shape, the upper surface of the gasket It is enough fitted on the primary sealing area and realizes sealing.

7. the portable carbon dioxide extinguisher of the locking type in elastic component foundation ring according to claim 6, which is characterized in that described The inner wall of sealing ring is the secondary sealing area for being from the bottom to top in necking shape, the outer wall of the gasket and the secondary sealing area shape Matching, the outer wall of the gasket, which can be fitted on the secondary sealing area, realizes sealing.

8. the portable carbon dioxide extinguisher of the locking type in elastic component foundation ring according to claim 5, which is characterized in that described The bottom of fixing seat has downwardly projecting and cylindrical limiting section, and the upper end of the spring is set in outside the limiting section.

9. the portable carbon dioxide extinguisher of the locking type in elastic component foundation ring according to claim 1, which is characterized in that described The upper end of bottle body is opening and has Connection protrusion protruding upward, and the inner wall of the Connection protrusion has screw thread, the connection The outer wall thread of mouth is connected on the inner wall of the Connection protrusion.

10. the portable carbon dioxide extinguisher of the locking type in elastic component foundation ring according to claim 9, which is characterized in that institute It states and is arranged with housing outside Connection protrusion.