CN1824483B

CN1824483B - Foaming tool

Info

Publication number: CN1824483B
Application number: CN2005100239780A
Authority: CN
Inventors: 王良
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-02-22
Filing date: 2005-02-22
Publication date: 2010-04-28
Anticipated expiration: 2025-02-22
Also published as: CN1824483A

Abstract

The present invention relates to a foaming tool. It includes shell body, liquid outlet valve, liquid inlet valve and switch. Said liquid outlet valve includes liquid outlet, valve core and reset spring, the liquid inlet valve includes liquid inlet, closing piece and second reset spring, the described switch is connected with the valve core. It is characterized by that between the liquid outlet andvalve core a sealing ring is set, on the sealing ring a fixing piece is set.

Description

Foam tool

Technical field

The present invention relates to foam tool.

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 liquid valve is even more important in the foam tool, after the filling body is housed on the feed liquor valve at foam tool, if the seal degree of liquid valve does not reach standard or a seepage phenomenon is arranged slightly, blowing agent in the foam tool can solidify at any time or endlessly outwards overflow, cause and quantitatively to construct and the significant wastage of raw material, and cause foam tool to scrap owing to the blowing agent in the foam tool easily solidifies.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 liquid valve adopts the direct cooperation of spool and fluid mouth to seal, this structure, when being applied to have the blowing agent than strong gas pressure, each element precision of liquid 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 objective of the invention is to overcome the deficiency of above-mentioned prior art, provide that a kind of to have a cost low, element precision requires low, and stability is high, and assembling is simple, and leak resistance is strong, and the high foam tool of qualification rate.

The object of the present invention is achieved like this: it comprises housing, liquid valve, feed liquor valve and switch, 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 switch is connected with spool, it is characterized in that: describedly between fluid mouth and spool, sealing ring is set, like this, fluid mouth and the direct difficulty of sealing mutually of spool 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 head at spool is made shoulder, and described shoulder seals mutually with sealing ring, adopts this hermetically-sealed construction, makes foam filled dose of effect sealed in instrument better.

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

Described second sealing ring that is provided with between liquid inlet port and closure member, described second fixture that is provided with on second sealing ring has guaranteed the sealing property of feed liquor valve also to make the second sealing ring difficult drop-off like this, has also guaranteed the sealing and the stability of foam tool.Described second sealing ring can be plane or hither plane shape, makes sealing ring not yielding.

Description of drawings

Fig. 1 is the structural representation of a kind of embodiment of foam tool of the present invention.

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-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-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, a kind of embodiment of foam tool, it comprises housing 1, liquid valve 2, feed liquor valve 3 and switch 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, switch 4 is connected slidably with spool 22, upper end in the switch 4 also is fixed on the housing 1 slidably, also can adopt the pin form fixing slidably, between fluid mouth 21 and spool 22, sealing ring 24 is set, spool 22 just can seal with sealing ring 24 earlier mutually, sealing ring 24 also seals naturally mutually with the inboard of fluid mouth 21, and it is preferable selection that sealing ring 24 adopts rubber or plastics, this situation, the quality of fit that meets true place of the head of spool 22 and sealing ring 24 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 sealing ring 24 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 22 spurs sealing ring 24 because of viscosity easily, push down sealing ring 24 so on sealing ring 24, adopt fixture 25, guaranteed that sealing ring 24 is not yielding, be difficult for becoming flexible, be difficult for expanding.Further, make shoulder 221 at the head of spool 22, shoulder 221 seals mutually with the inner edge 241 of sealing ring 24, referring to Fig. 2, when shoulder 221 pushed mutually with inner edge 241, inner edge 241 is distortion regularly along with the angle of shoulder 221, improved the service life of liquid valve 2 like this, more.

Sealing ring 24 is made concavity, and the outstanding edge of concavity is stuck in (referring to Fig. 2) on the fixture 25, thereby has guaranteed that more sealing ring 24 can not come off.

Second sealing ring 34 is set between liquid inlet port 31 and closure member 32, so also fundamentally solved between liquid inlet port 31 and the closure member 32 directly the difficulty of sealing mutually, closure member 32 can adopt spherical shape, second sealing ring 34 adopts rubber or plastics 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 34 distortion of second sealing ring or to move, on second sealing ring 34, be pressed with fixture 35.When second sealing ring 34 is plain film shape or nearly plain film shape, not yielding, and also sealing effectiveness is better.

When the filling body that has foam filled dose is contained on the feed liquor valve 3, irritating body communicates with the liquid inlet port 31 of feed liquor valve 3, make foam filled dose of self having air pressure back down closure member 32 automatically and enter in the foam tool rapidly, when needs joint filling or mending-leakage, with pulling moving switch 4, the spool 22 that is connected on the switch 4 just can be from fluid mouth 21 superior displacements, thereby can make foam filled dose from liquid valve 2 discharges, when openhanded when driving switch 4, the back-moving spring 23 that is installed in spool 22 rear ends playbacks spool 22 again, and make the closely sealing mutually of inner edge 241 of shoulder 221 with the sealing ring 24 of spool 22 front ends, like this, just can reach the effect of anti-leak, and no matter be discontinuous operation, in the foam tool with foam filled dose that irritates in the body be difficult for spontaneous curing.

Referring to Fig. 1, the 3rd sealing ring 51 is housed on the part spool 22 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 back-moving spring 23 and locating part 61, be provided with steel ball 62.

After using up, in irritating body foam filled dose need transposing or when unloading, second back-moving spring 33 in the liquid inlet port 31 seals closure member 32 with second sealing ring 34 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 liquid valve 2 or feed liquor valve 3, thus the service life of having improved foam tool widely.

Though below in conjunction with the embodiments the present invention has been made detailed description, those of ordinary skill obviously can be recognized in the art, and previous embodiment only is for the present invention, and non-limiting the present invention.In design scope of the present invention, 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. foam tool, comprise housing, liquid valve, feed liquor valve and switch, 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 switch is connected with spool, it is characterized in that: between described fluid mouth and spool sealing ring is set, described sealing ring adopts rubber or plastics.

2. according to the described foam tool of claim 1, it is characterized in that on described sealing ring, fixture being set.

3. according to claim 1 or 2 described foam tools, it is characterized in that the head of described spool is made shoulder, described shoulder seals mutually with described sealing ring.

4. according to claim 1 or 2 described foam tools, it is characterized in that described sealing ring is a concavity.

5. according to claim 1 or 2 described foam tools, it is characterized in that described sealing ring is the plain film shape.

6. according to claim 1 or 2 described foam tools, it is characterized in that between described liquid inlet port and closure member, being provided with second sealing ring.

7. according to the described foam tool of claim 6, it is characterized in that on described second sealing ring, second fixture being set.

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

9. according to the described foam tool of claim 6, it is characterized in that described second sealing ring adopts rubber or plastics to make.