CN2808327Y

CN2808327Y - Foaming gun

Info

Publication number: CN2808327Y
Application number: CN 200520043467
Authority: CN
Inventors: 王良
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-07-15
Filing date: 2005-07-15
Publication date: 2006-08-23
Anticipated expiration: 2015-07-15

Abstract

The utility model relates to a foaming gun, which comprises a casing, a liquid outlet valve, a liquid inlet valve and a switch gear, wherein the liquid outlet valve comprises a liquid outlet nozzle, a valve core and a restoring spring, the liquid inlet valve comprises a liquid inlet nozzle, a closing member and a second restoring spring, the switch gear is connected or connected in lap joint type with the valve core and a sealing ring is arranged between the liquid outlet nozzle and the valve core. The utility model has the advantages of low cost, simple assemblage, high stability and long service life and simultaneously and effectively prevents and avoids the leakage phenomenon.

Description

Foam gun

Technical field

The utility model relates to a kind of foam gun of foam filling agent.

Background technology

At present, about the door in the house, the window water-impervious is installed or the slit is filled up, the insulation that air-conditioning is installed, application of anti-leakage layers, fill in the surplus hole that various pipelines are installed, combined socket and switch and the relevant installation that needs insulation etc., generally all adopting foam filling agent is raw material, during use, foam filling agent is quantitatively discharged reach installation or joint filling or mending-leakage or insulation or insulation or purpose such as bonding by foam gun, foam filling agent generally is for having anticyclonic liquid state in the cavity of foam gun, liquid valve in the foam gun seals with the fluid mouth mutually by spool, and when by the switch opens fluid mouth in the foam gun, the foam filling agent that ejects becomes the solid shape and is bonded in needed place, but, exist the shortcoming of following several respects during the passage of this foam filling agent that possesses high viscosity by foam gun; 1. foam gun uses back fluid mouth to be very easy to putting aside the foam filling agent of solidifying by a period of time ground, makes spool be difficult to stably seal mutually with the fluid mouth, has caused foam gun to be easy to seepage or obstruction and scraps.If 2. the seal degree of liquid valve does not reach standard or a seepage phenomenon is arranged slightly, cause foam filling agent in the foam gun to be easy to seepage or curing and shortened service life of foam gun, therefore, as easy as rolling off a log seepage of foam gun on the existing market or obstruction, the consumption that causes foam gun is huge and wasted resource.

Summary of the invention

The purpose of this utility model is that propose at the defective of above-mentioned prior art existence a kind of can prolong service time, can prevent and avoid simultaneously the foam gun of seepage phenomenon again effectively.

Another purpose of the present utility model provides a kind of simple in structure, and cost is low, the foam gun of being convenient to produce in enormous quantities.

In order to realize the foregoing invention purpose, the utility model adopts following technical scheme: it comprises housing, liquid valve, feed liquor valve and switching device, liquid valve comprises: fluid mouth, spool and back-moving spring, the feed liquor valve comprises: liquid inlet port, closure member and second back-moving spring, described switching device is connected with spool or overlaps, and it is characterized in that: describedly between fluid mouth and spool sealing ring is set.

Also be included on the described sealing ring fixture is set.

Described head at spool is made shoulder, and described shoulder seals mutually with sealing ring.

Described sealing ring is spill or convex.

Described sealing ring is the plain film shape.

Second sealing ring is set between described liquid inlet port and closure member.

Also be included on described second sealing ring second fixture is set.

Description of drawings

Fig. 1 is the structure cross-sectional schematic of a kind of embodiment of the utility model foam gun.

Fig. 2 is the structure for amplifying cross-sectional schematic of liquid valve among Fig. 1.

Fig. 3 is the another kind of structure for amplifying cross-sectional schematic of liquid valve.

Among the figure:

The 1-housing 2-liquid valve 21-fluid mouth 22-spool 221-shoulder 23-back-moving spring 24-sealing ring 241-inner edge 25-fixture 3-feed liquor valve 31-liquid inlet port 32-closure member 33-second back-moving spring 34-second sealing ring 35-second fixture 4-switching device 51-the 3rd sealing ring 52-the 3rd fixture 61-adjuster 62-steel ball

The specific embodiment

Referring to Fig. 1 and Fig. 2, a kind of embodiment of foam gun, it comprises housing 1, liquid valve 2, feed liquor valve 3, with switching device 4, liquid valve 2 comprises: fluid mouth 21, spool 22 and back-moving spring 23, feed liquor valve 3 comprises: liquid inlet port 31, the closure member 32 and second back-moving spring 33, switching device 4 is connected movably with spool 22 or overlaps mutually, upper end in the switching device 4 also is fixed on the housing 1 movably, also can adopt the latch form fixing movably, between fluid mouth 21 and spool 22, sealing ring 24 is set, spool 22 just can steadily and promptly seal with rubber-like sealing ring 24 earlier mutually, simultaneously, sealing ring 24 also seals naturally mutually with the inboard of fluid mouth 21, sealing ring 24 adopts rubber or soft moulding to be preferable selection, this situation, the quality of fit that meets true place of the head of spool 22 and sealing ring 24 is so long as generally just can reach the higher quality seal effect, promptly prolonged the service life of foam gun, simultaneously can prevent and avoid the seepage phenomenon effectively again, the quality and the production efficiency of product have been improved widely, this is simple in structure, cost is low, is fit to produce in enormous quantities.

Because foam filled dose has stronger viscosity, when operate as normal or afterwards, spool 22 movable back and forth easy strong viscosity because of foam filling agent on fluid mouth 21 spurs (or drive) sealing ring 24, so on sealing ring 24, adopt fixture 25 to compress sealing ring 24, guaranteed that sealing ring 24 is not yielding, difficult quilt drives, and is difficult for expanding.Further, the head of spool 22 is made and is dwindled shape, and form shoulder 221 at the transition position that dwindles shape, shoulder 221 seals mutually with the inner edge 241 of sealing ring 24, referring to Fig. 2, when shoulder 221 pushes mutually with inner edge 241, inner edge 241 is distortion regularly along with the angle of shoulder 221, like this, improve the service life of liquid valve 2 more, thereby also prevented and avoided the seepage phenomenon more effectively.

Referring to Fig. 3, sealing ring 24 can be made the plain film shape, and is not yielding when sealing mutually with spool 22 and fluid mouth 21, and good sealing effect.

Further, in order to make sealing ring 24 can not be subjected to the foam filling agent of strong viscosity to cause sealing ring 24 to come off, be out of shape, break or drive better because of constantly spurring back and forth of spool 22, referring to Fig. 2, concavity is made in one side of sealing ring 24, match with described concavity making convex, thereby also improved the effect that sealing ring 24 and spool 22 and fluid mouth 21 seal mutually more with the fixture 25 of sealing ring 24 concavity touching positions.Otherwise, also can be that convex is made in a side of sealing ring 24, make concavity with the fixture 25 that the convex of sealing ring 24 matches.

Referring to Fig. 1, second sealing ring 34 is set between liquid inlet port 31 and closure member 32, so also fundamentally solved in the prior art between the liquid inlet port 31 and closure member 32 directly the difficulty of sealing mutually, guaranteed foam filling agent in the foam gun can be from the liquid inlet port 31 seepage and cause foam filled dose to solidify phenomenon, closure member 32 can adopt spherical shape, second sealing ring 34 adopts rubber or soft moulding to be made for preferable selection, like this, the quality of fit of the contact position of the closure member 32 and second sealing ring 34 is so long as generally just can reach high-quality sealing effect; In order to prevent the distortion of second sealing ring 34 or to be driven or come off, on second sealing ring 34, be pressed with fixture 35.When second sealing ring 4 is plain film shape or nearly plain film shape, not yielding, and also sealing effectiveness is better.

When the filling body that has foam filling agent is contained on the feed liquor valve 3, irritating body communicates with liquid inlet port 31 in the feed liquor valve 3, make the foam filling agent that self has air pressure back down closure member 32 automatically and enter in the foam gun rapidly, when needs installation or joint filling or mending-leakage etc., with pulling moving switching device 4, the spool 22 that connects or be overlapped on the switching device 4 just can make fluid mouth 21 open-minded from fluid mouth 21 superior displacements, thereby foam filling agent is discharged from liquid valve 2, when openhanded when driving switching device 4, the back-moving spring 23 that is installed in spool 22 rear ends is with spool 22 playback again (rebounding), and make inner edge 241 sealing mutually rapidly and reposefully of shoulder 221 with the sealing ring 24 of spool 22 front ends, like this, just can reach anti-leak, anti-effect of solidifying, and no matter be discontinuous operation, the foam filling agent with irritating in the body in the foam gun can spontaneous curing, thus the service life of having improved foam gun.

When needing after the foam filling agent in irritating body uses up to change or unload, second back-moving spring 33 in the liquid inlet port 31 makes closure member 32 seal mutually with second sealing ring 34 automatically, foam filled dose of staying in the foam gun cavity just closed in all directions, make the foam filling agent in the cavity be difficult for solidifying, the foam filling agent that has also prevented to be retained in the cavity continues to overflow to feed liquor valve 3, thus the service life of having improved foam gun widely.

Referring to Fig. 1, the 3rd sealing ring 51 is housed on the part spool 22 outside stretching out the foam gun cavity, prevented that foam filled dose leaks from this, the 3rd fixture 52 is housed on the 3rd sealing ring 51 is used for fixing sealing ring 51.

Also adjuster 61 can be set at the afterbody of housing 1, adjuster 61 can adopt with the cooperation place of housing 1 and be threaded, and the effect of adjuster 61 is amplitudes of by-pass cock device 4 pullings, thereby is also controlling the many of foam filling agent burst size or few.For adjuster 61 can be rotated like a cork, can between back-moving spring 23 and adjuster 61, be provided with steel ball 62.

Also housing 1 can be made and to dock mutually and dismountable minute body structure, make housing 1 be divided into two parts, by the latch-up structure that is provided with housing 1 is fused then, liquid valve 2 and feed liquor valve 3 have at least part to be arranged in the wherein some of housing 1, switching device 4 and adjuster 61 are arranged in another part of housing 1, when needs are changed new liquid valve and feed liquor valve, open latch-up structure, just can change new liquid valve and feed liquor valve easily.

Though below in conjunction with the embodiments the utility model has been made detailed description, those of ordinary skill obviously can be recognized in the art, and previous embodiment only is for the utility model, and non-limiting the utility model.In design scope of the present utility model, can also make multiple variation or distortion to previous embodiment, these variations and distortion all should belong to the protection domain of this patent.

Claims

1, a kind of foam gun, comprise housing, liquid valve, feed liquor valve and switching device, liquid valve comprises: fluid mouth, spool and back-moving spring, the feed liquor valve comprises: liquid inlet port, closure member and second back-moving spring, described switching device is connected with spool or overlaps, and it is characterized in that: describedly between fluid mouth and spool sealing ring is set.

2, foam gun according to claim 1 is characterized in that: also be included on the described sealing ring fixture is set.

3, foam gun according to claim 1 and 2 is characterized in that: described head at spool is made shoulder, and described shoulder seals mutually with sealing ring.

4, foam gun according to claim 1 and 2 is characterized in that: described sealing ring is spill or convex.

5, foam gun according to claim 1 and 2 is characterized in that: described sealing ring is the plain film shape.

6, foam gun according to claim 1 and 2 is characterized in that: second sealing ring is set between described liquid inlet port and closure member.

7, foam gun according to claim 6 is characterized in that: also be included on described second sealing ring second fixture is set.