CN2767119Y

CN2767119Y - Foaming tool of leakage prevention

Info

Publication number: CN2767119Y
Application number: CN 200520039710
Authority: CN
Inventors: 王良
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-02-22
Filing date: 2005-02-22
Publication date: 2006-03-29
Anticipated expiration: 2015-02-22

Abstract

The utility model relates to a foaming tool of leakage prevention, which comprises a casing, a liquid entering valve, a liquid outlet valve and a switch, wherein the liquid inlet valve comprises a liquid inlet nozzle, a closing member and a return spring; the liquid outlet valve comprises a liquid outlet nozzle, a valve core and a second restoring spring; the switch is connected with the valve core. The utility model is characterized in that a sealing ring is arranged between the liquid inlet nozzle and the closing member, and the utility model also comprises a fixing piece arranged on the sealing ring. The utility model has the advantages of low cost, simple assembly, high stability, strong leak-proof performance and very high product qualification rate.

Description

The foam tool of energy leakproof

Technical field

The utility model relates to the foam tool of energy leakproof.

Background technology

At present, be used for to the door in the house, window, pipeline and wall etc. need the place of joint filling or mending-leakage, generally all adopt have anticyclonic foam filled dose for raw material, during use, make foam filled dose quantitatively to discharge the purpose that reaches joint filling or mending-leakage by foam tool, but, because this injection of foam filled dose is to reach injection by the pressure that self produces, such as: foam filled dose can be adopted polyurethane and butane gas to be mixed into primary raw material, and be contained in high-seal and irritate in the body, so, in the process of constructing by foam tool, the sealing of foam tool must be a high request, especially the sealing stability of feed liquor valve is even more important in the foam tool, finishes using after the filling body is housed on the feed liquor valve at foam tool and need unload when irritating body, if the seal degree of feed liquor valve does not reach standard or a seepage phenomenon is arranged slightly, blowing agent in the foam tool can solidify or outwards overflow unceasingly at any time, and causes foam tool to scrap.At present, the foam tool on the market mostly is to adopt the easy plastics of disposable use to make, and uses in case open to irritate, and must put in order to irritate using up, and waste greatly; Also having a kind of is that the feed liquor valve adopts the direct cooperation of closure member and liquid inlet port to seal, this structure, when being applied to have the blowing agent than strong gas pressure, each element precision of feed liquor valve requires high, be difficult to reach the seal request of normal need, therefore, in process of production, the defect rate of product is very high, is difficult to be fit to produce in enormous quantities.

Summary of the invention

The purpose of this utility model is the deficiency that overcomes above-mentioned prior art, provides that a kind of to have a cost low, and element precision requires low, and stability is high, and assembling is simple, and leak resistance is strong, and qualification rate high can leakproof foam tool.

The purpose of this utility model is achieved in that it comprises housing, feed liquor valve, liquid valve and switch, the feed liquor valve comprises: liquid inlet port, closure member and back-moving spring, liquid valve comprises: fluid mouth, spool and second back-moving spring, described switch is connected with spool, it is characterized in that: describedly between liquid inlet port and closure member, sealing ring is set, like this, liquid inlet port and the direct difficulty of sealing mutually of closure member have fundamentally been solved, also be included on the described sealing ring fixture is set, not yielding, difficult drop-off when having guaranteed that sealing ring is subjected to foam filled dose influencing.

Described sealing ring can be plane or hither plane shape, makes sealing ring good seal and not yielding, particularly is used more not yielding with fixture.

Described second sealing ring that between fluid mouth and spool, is provided with, described second fixture that on second sealing ring, is provided with, guarantee the sealing property of liquid valve like this, also made second sealing ring difficult drop-off or the distortion, also guaranteed the sealing and the stability of foam tool.

Described head at spool is made shoulder, and described shoulder seals mutually with second sealing ring, adopts this hermetically-sealed construction, makes foam filled dose of effect sealed in instrument better.

Second sealing ring is a concavity, and sealing effectiveness is better, and it is not yielding to match with second fixture, more difficult drop-off; Also can be plain film shape sealing ring, cooperate not yielding with anchor structure.

Description of drawings

Fig. 1 is the structural representation of a kind of embodiment of the foam tool of the utility model energy leakproof.

Fig. 2 is the structure for amplifying cutaway view of liquid valve among Fig. 1.

Fig. 3 is the another kind of structure for amplifying cutaway view of liquid valve.Among the figure:

The 1-housing 2-feed liquor valve 21-liquid inlet port 22-closure member 23-back-moving spring 24-sealing ring 25-fixture 3-liquid valve 31-fluid mouth 32-spool 321-shoulder 33-second back-moving spring 34-second sealing ring 341-inner edge 35-second fixture 4-switch 51-the 3rd sealing ring 52-the 3rd fixture 61-locating part 62-steel ball

The specific embodiment

Referring to Fig. 1, Fig. 2, the embodiment of the foam tool of energy leakproof, it comprises housing 1, feed liquor valve 2, liquid valve 3 and switch 4, feed liquor valve 2 comprises: liquid inlet port 21, closure member 22 and back-moving spring 23, liquid valve 3 comprises: fluid mouth 31, the spool 32 and second back-moving spring 33, switch 4 is connected slidably with spool 32, upper end in the switch 4 also is fixed on the housing 1 slidably, also can adopt the pin form to be fixed on slidably on the housing 1, between liquid inlet port 21 and closure member 22, sealing ring 24 is set, closure member 22 just can seal with sealing ring 24 earlier mutually, and the inboard of sealing ring 24 and liquid inlet port 21 is sealing mutually naturally also, has so fundamentally solved the direct difficulty that seals mutually between liquid inlet port 21 and the closure member 22, closure member 22 can adopt spherical shape, sealing ring 24 adopts rubber or plastics to be made for preferable selection, and like this, the quality of fit of the contact position of closure member 22 and sealing ring 24 is so long as generally just can reach high-quality sealing effect; In order to prevent sealing ring 24 distortion or to move, on sealing ring 24, be provided with fixture 25 and be used for fixing sealing ring 24.When sealing ring 24 is plain film shape or nearly plain film shape, not yielding, and also sealing effectiveness is better.

Second sealing ring 34 is set between fluid mouth 31 and spool 32, spool 32 just can seal with second sealing ring 34 earlier mutually, second sealing ring 34 also seals naturally mutually with the inboard of fluid mouth 31, it is preferable selection that second sealing ring 34 adopts rubber or plastics, this situation, the quality of fit that meets true place of the head of spool 32 and second sealing ring 34 has improved the quality and the productivity of product widely so long as generally just can reach the higher quality seal effect; Because foam filled dose in the foam tool makes second sealing ring 34 produce easily and expands or distortion, also has stronger bonding force owing to foam filled dose, when operate as normal or afterwards, the flexible of spool 32 spurs second sealing ring 34 because of viscosity easily, push down second sealing ring 34 so on second sealing ring 34, adopt second fixture 35, guaranteed that second sealing ring 34 is not yielding, be difficult for becoming flexible, be difficult for expanding.Further, make shoulder 321 at the head of spool 32, shoulder 321 seals mutually with the inner edge 341 of second sealing ring 34, referring to Fig. 2, when shoulder 321 pushed mutually with inner edge 341, inner edge 341 is distortion regularly along with the angle of shoulder 321, improved the service life of liquid valve 3 like this, more.

Second sealing ring 34 is made concavity, and the outstanding edge of concavity is stuck on second fixture 35 (referring to Fig. 2), thereby has guaranteed that more second sealing ring 34 can not come off.

When the filling body that has foam filled dose is contained on the feed liquor valve 2, irritating body communicates with the liquid inlet port 21 of feed liquor valve 2, make foam filled dose of self having air pressure back down closure member 22 automatically and enter in the foam tool rapidly, when needs joint filling or mending-leakage, with pulling moving switch 4, the spool 32 that is connected on the switch 4 just can be from fluid mouth 31 superior displacements, thereby can make foam filled dose from liquid valve 3 discharges, when openhanded when driving switch 4, second back-moving spring 33 that is installed in spool 32 rear ends playbacks spool 32 again, make the closely sealing (referring to Fig. 1) mutually of inner edge 341 of shoulder 321 with second sealing ring 34 of spool 32 front ends, like this, just can reach the high-seal of liquid valve 3, and no matter be discontinuous operation, in the foam tool with foam filled dose that irritates in the body be difficult for spontaneous curing or leakage.

After using up, in irritating body foam filled dose need transposing or when unloading, back-moving spring 23 in the liquid inlet port 21 seals closure member 22 with sealing ring 24 automatically mutually, foam filled dose of staying in the foam tool cavity just closed in all directions, make foam filled dose in the cavity to be difficult for solidifying, the foam filled dose of continuation that has also prevented to be retained in the cavity overflowed to feed liquor valve 2, thus the service life of having improved foam tool widely.

Referring to Fig. 1, the 3rd sealing ring 51 is housed on the part spool 32 outside stretching out the foam tool 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.

Afterbody at housing 1 is provided with locating part 61, locating part 61 can with the cooperation place of housing 1 with being threaded, the effect of locating part 61 is amplitudes of gauge tap 4 pullings, thereby is also controlling foam filled dose what of burst size.When with locating part 61 when switch 4 directions are rotated, the amplitude of switch 4 pulling diminishes, on the contrary it is big that the pulling amplitude of switch 4 becomes.For locating part 61 is easily rotated, can between second back-moving spring 33 and locating part 61, be provided with steel ball 62.

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, the foam tool of a kind of energy leakproof, comprise housing, feed liquor valve, liquid valve and switch, the feed liquor valve comprises: liquid inlet port, closure member and back-moving spring, liquid valve comprises: fluid mouth, spool and second back-moving spring, described switch is connected with spool, it is characterized in that: describedly between liquid inlet port and closure member, sealing ring is set, also is included on the described sealing ring fixture is set.

2, according to the foam tool of the described energy of claim 1 leakproof, it is characterized in that: described sealing ring is the plain film shape.

3, according to the foam tool of the described energy of claim 1 leakproof, it is characterized in that: described second sealing ring that between fluid mouth and spool, is provided with, described second fixture that on second sealing ring, is provided with.

4, according to the foam tool of the described energy of claim 3 leakproof, it is characterized in that: described head at spool is made shoulder, and described shoulder seals mutually with second sealing ring.

5, according to the foam tool of the described energy of claim 3 leakproof, it is characterized in that: described second sealing ring is a concavity.

6, according to the described foam tool with high sealing of claim 3, it is characterized in that: described second sealing ring is the plain film shape.