CN201042689Y

CN201042689Y - Foaming tool

Info

Publication number: CN201042689Y
Application number: CNU2007200686882U
Authority: CN
Inventors: 王良
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-06
Filing date: 2007-04-06
Publication date: 2008-04-02
Anticipated expiration: 2017-04-06

Abstract

A foaming tool is provided, which comprises a gun body, an inlet liquid valve, an outlet liquid valve and a switch. The switch allows the outlet liquid valve to be opened or closed. The outlet liquid valve comprises an outlet liquid nozzle, a valve core and a reset spring. The foaming tool is characterized in that the valve core is equipped with a concave portion, a seal ring is equipped inside the concave portion and hermetic to the outlet liquid nozzle, and at least partial head of the valve core is exposed outside the seal ring, so as to efficiently prevent and avoid the leakage and/or solidification of foam gap filler in the foam gun, to efficiently prevent and avoid the hazard of leakage or combustion or explosion of the foam gap filler or gas, to improve the wearability, leak tightness and stability of the seal ring, and to efficiently avoid the external leakage of the foam gap filler due to wear loss or looseness or deformation or falling. The foaming tool has the advantages of simple and reasonable structure, improved foamability and quality of foam gap filler, reduced resource consumption, good safety, easy cleaning, long service life, low cost, being suitable for large-scale production.

Description

Foam tool

Technical field

The utility model relates to the foam tool of spray foam gap filler.

Background technology

About the door in building and the house, window, body of wall, coating, mix earth, water-impervious such as timber and frosting is installed, joint filling or mending-leakage, the insulation that air-conditioning is installed, application of anti-leakage layers, various pipelines are installed, fill in the surplus hole of ventilating opening and electric wire outlet, combined socket and switch and the relevant installation that needs insulation etc., generally all adopting foam gap filler is raw material, during use, by foam tool foam gap filler is discharged and reach installation, joint filling, mending-leakage, insulation, insulation or purpose such as bonding, foam gap filler generally is for having air pressure or than the liquid status of hyperbar at the foam tool internal channel, when opening the fluid mouth by the switching device in the foam tool, the foam gap filler that ejects foams back curing and is bonded in needed place, 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, foam gap filler in the foam tool can solidify at any time or endlessly outwards overflow or spray, cause foam tool to be easy to scrap, do not decrease and be bonded on hand or be difficult on the clothes to clean, moreover, do not decrease to be injected on the eyes to produce serious consequence.

The spool of foam tool and fluid mouth are generally directly hard sealing in the prior art, though the effect of the foam gap filler that ejects foaming (expansion) is better, but be difficult to be closed because of self having higher air pressure when leaving over foam gap filler when discontinuous operation or in the passage, that is to say and do not reach normal seal request between them, foam gap filler is easy to external leakage, very easily cause the foam gap filler in the rifle body curing to occur and cause whole passage to stop up, even, the danger of burning or blast can appear, in addition, when construction, the fluid mouth is easy to wearing and tearing occur and causes leakage phenomenon.

Also have and a kind ofly in the fluid mouth, sealing ring is set, this structure, generally can also adopt fixture to fix the larger area sealing ring, have been found that, when foam gap filler when the fluid mouth sprays, sealing ring and/or fixture have produced very big obstruction to the flow velocity of foam gap filler, the gas release and the quality of foam gap filler have been reduced, improved cost, in addition, because foam gap filler has very strong viscous force, when construction constantly the moving back and forth and be easy to pulling (adhesion) sealing ring and cause sealing ring to occur loosening or distortion or come off of spool, also be easy to make sealing ring to occur wearing and tearing, so, still exist and leak the foam gap filler phenomenon, shortened the service life of foam tool.

Summary of the invention

The purpose of this utility model is the defective that exists at above-mentioned prior art and propose a kind ofly to prevent effectively and avoided the foam gap filler in the foam tool foam tool of phenomenon to occur leaking and/or solidifying.

Another purpose of the present utility model is to prevent and avoided foam gap filler or gas the danger of burning or exploding to occur because of leakage effectively.

Another purpose of the present utility model is to prevent effectively and avoided the passage in the foam tool clogging to occur, has prolonged service life.

Another purpose of the present utility model is wearability, sealing and the stability that has improved sealing ring, has avoided effectively causing foam gap filler to occur to external leakage because of wearing and tearing or loosening or distortion or obscission occurring.

Another purpose of the present utility model is to have improved the gas release and the quality of foam gap filler, reduces cost, and has saved resource, and safe in utilization, cleaning is fit to produce in enormous quantities.

In order to realize the foregoing invention purpose, the utility model provides a kind of foam tool, it comprises rifle body, feed liquor valve, liquid valve and switching device, switching device can make liquid valve open or close, liquid valve comprises fluid mouth, spool and back-moving spring, it is characterized in that: on described spool recess is set, in the described recess sealing ring is set, described sealing ring seals mutually with described fluid mouth, and described spool head has at least part to expose described sealing ring.

Described recess is recess or the irregular recess in annular recess or a plurality of point type recess or the helicitic texture.

Described spool adopts metal material to make.

The structure that described spool and sealing ring fuse.

Described sealing ring adopts rubber or bakelite or metal material to make.

Described rubber adopts the material of resistance to chemical attack to make.

Described metal material adopts the soft metal material.

Described metal material comprises lead or tin or aluminium or zinc or magnesium.

Described metal material comprises plumbous and tin or plumbous and zinc or tin and zinc or aluminium and lead or aluminium and tin or aluminum and zinc or magnesium and lead or magnesium and tin or lead and chromium.

Described sealing ring adopts plastics to make.

Described plastics adopt the material of resistance to chemical attack to make.

Described plastics comprise poly-third or polypropylene or polyethylene or polyformaldehyde material.

The sealing ring that described plastics are made adopts plastics to melt and be infused in by injection machine and is embedded with in the mould of plastics that has the part spool at least, makes the plastic seal ring of formation have at least part to be enclosed in the recess that is provided with on the described spool.

The sealing ring that described metal material is made adopts metal material to melt and be infused in by die casting machine and is embedded with in the mould that has the part spool at least, makes the metal o-ring of formation have at least part to be enclosed in the recess that is provided with on the described spool.

The sealing ring that described bakelite is made adopts the bakelite material to heat also die casting in being embedded with the mould that has the part spool at least by the bakelite press, makes the bakelite sealing ring of formation have at least part to be enclosed in the recess that is provided with on the described spool.

Described sealing ring has the external diameter of part at least between 1.5 millimeters～7 millimeters.

Preferred described sealing ring has the external diameter of part at least between 2.5 millimeters～5 millimeters.

Adopt the utility model of technique scheme, prevent and avoided foam gap filler appearance leakage and/or the curing phenomenon in the foam tool effectively; Prevent and avoided foam gap filler or gas the danger of leaking or burning or exploding to occur effectively, improved wearability, sealing and the stability of sealing ring, avoided occurring wearing and tearing or loosening or distortion effectively or come off and cause the outside leakage phenomenon of foam gap filler; This is simple and reasonable for structure, has improved the gas release and the quality of foam gap filler widely, has saved resource, and safe in utilization, cleaning has prolonged service life, and cost is low, is fit to produce in enormous quantities.

Description of drawings

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

Fig. 2 emphasis illustrates fluid mouth and spool local structure for amplifying schematic diagram partly among Fig. 1.

Structural representation when Fig. 3 illustrates the sealing ring of interlocking in the recess of spool with the spool decomposition for emphasis among Fig. 2.

Structural representation when Fig. 4 is Fig. 1 liquid valve duty (opening).

Fig. 5 emphasis illustrates fluid mouth and spool local structure for amplifying schematic diagram partly among Fig. 4.

Among the figure

The 1-rifle body 2-feed liquor valve 21-liquid inlet port 22-closure member 23-second back-moving spring 3-liquid valve 31-fluid mouth 32-spool 321-head 33-back-moving spring 4-switching device 5-second sealing ring 51-fixture 6-recess 7-sealing ring 8-adjuster

The specific embodiment

Foam tool of the present utility model, it comprises rifle body 1, feed liquor valve 2, liquid valve 3 and switching device 4, liquid valve 3 comprises fluid mouth 31, spool 32 and back-moving spring 33, switching device 4 can make liquid valve 3 open or close, such as, spool 32 has at least part to stretch out the internal channel of foam tool, switching device 4 can be acted on the described spool 32 directly or indirectly, recess 6 wherein is set on the head of described spool 32, in described recess 6, sealing ring 7 is set, sealing ring 7 seals mutually with described fluid mouth 31, spool 32 heads 321 have at least part to expose sealing ring 7, prevent and avoided foam gap filler appearance leakage and/or the curing phenomenon in the foam tool effectively, prevented that effectively clogging from appearring in passage, prevent and avoided foam gap filler in the foam tool or gas to occur leaking effectively or the danger of burning or blast, improved the wearability of sealing ring, sealing and stability, avoided occurring wearing and tearing or loosening or distortion effectively or come off and cause foam tool to leak the foam gap filler phenomenon, this is simple in structure, rationally, the gas release and the quality of foam gap filler have been improved, saved resource, safe in utilization, cleaning, prolonged service life, cost is low, is fit to produce in enormous quantities.

Referring to Fig. 1, Fig. 2 and Fig. 3, Fig. 3 clearly illustrates the situation that sealing ring matches with recess for the spool among Fig. 2 and sealing ring with the formation of exploded view, recess 6 is set on spool 32, recess 6 is an annular recess, and sealing ring 7 is set in annular recess 6, and especially sealing ring 7 adopts plastics to make, the hardness height, also have softly, the sealing effectiveness between them is better, and not yielding; Plastics adopt the material of resistance to chemical attack to make, and make sealing effectiveness better, long service life.Also can be that described recess is recess in a plurality of point type recesses or the helicitic texture or irregular recess etc., fastness height when sealing ring is connected with spool, difficult drop-off.The sealing ring 7 of plastics is set in the recess 6, its optimal technical scheme is to have at least spool 32 part to be embedded in the mould of processing plastic sealing ring, by injection machine with plastic molting and inject mould and form plastic seal ring 7 and have at least part closely to be enclosed on the spool 32 annular recess 6 (groove) that is provided with, the fastness height, make sealing ring 7 and spool 32 sealing mutually to heavens, the structure that spool 32 and sealing ring 7 are fused, prevented that obscission from appearring in sealing ring 7, the volume of sealing ring 7 is made smaller also difficult drop-off, and its sealing and result of use are better.Plastic seal ring employing poly-third or polypropylene or polyethylene or polyformaldehyde material are preferred material.

When the needs foam tool is constructed, the filling body that will have a foam gap filler is packed on the feed liquor valve 2 of foam tool, at this moment, by self having pressure promotion closure member 22 than the foam gap filler of hyperbar, the foam gap filler of irritating in the body is entered rapidly in the internal channel of rifle body 1, at this moment, sealing ring 7 that is provided with in the recess 6 of spool 32 and the effect effectively mutually sealing of fluid mouth 31 by back-moving spring 33, spool 32 heads 321 have at least part to expose sealing ring 7, keep away mutually in the sealing ring 7 that has been provided with on the spool 32 when having avoided spool 32 motions and the fluid mouth 31 and rub, prevent effectively and avoided liquid valve 3 foam gap fillers or gas to occur leaking and cause foam gap filler in burning or blast or the rifle body internal channel phenomenon that is cured, solve sealing ring 7 and occurred wearing and tearing or loosening or distortion or obscission easily, prolonged service life.Referring to Fig. 4 and Fig. 5, when needs are constructed, Drawing switch device 4 drives spool 32 and moves, the sealing ring 7 of making one with spool 32 leaves the outlet of fluid mouth 31 along with spool 32, make the inner chamber of fluid mouth 31 exit portion form bigger space, at this moment, foam gap filler just can have no to hinder and effectively ejection from fluid mouth 31, produce more large tracts of land, even and high-quality foam-filled thing is bonded in needed place, reduced the consumption of foam filling agent widely, gas release and quality have been improved, saved resource, simultaneously, avoid sealing ring 6 wearing and tearing or distortion or loosening or obscission to occur, also prevented to occur leaking the foam gap filler phenomenon effectively.

It also can be the sealing ring 7 that metal is set in recess 6, wear-resisting, be not prone to distortion or loosening or obscission, leak resistance is good, its optimal technical scheme is to have at least part to be embedded in the mould of processing metal sealing ring spool 32, by die casting machine with metal molten and inject mould, make the metal o-ring 7 of casting forming have at least part closely to be enclosed in the annular recess 6 that is provided with on the spool 32, make metal o-ring 7 and spool 32 sealing mutually to heavens, thereby formed the structure that spool 32 and metal o-ring 7 fuse, solve sealing ring 7 and occurred wearing and tearing or loosening or distortion or obscission easily, prevent effectively and avoided occur leaking the foam gap filler phenomenon, prolonged service life.Metal o-ring 7 also can adopt and comprise lead or tin or aluminium or zinc or magnesium or plumbous and tin or plumbous and zinc or tin and zinc or aluminium and lead or aluminium and tin or aluminum and zinc or magnesium and lead or magnesium and tin or materials such as plumbous and chromium, by die casting machine fusing and inject lead or tin or aluminium or zinc or magnesium or plumbous and tin or plumbous and zinc or tin and zinc or aluminium and lead or aluminium and tin or aluminum and zinc or magnesium and lead or magnesium and tin or formation metal o-rings 7 such as lead and chromium are embedded in the recess 6 of spool 32, the structure that fuses with spool 32.It is preferable selection that metal material adopts soft metal, such as, adopt to comprise lead or tin or plumbous and tin or plumbous and zinc or magnesium and lead or magnesium and tin or tin and zinc or plumbous and chromium etc., better with the effect that the fluid mouth seals mutually.Sealing ring 7 also can adopt bakelite to make, the bakelite sealing ring adopts the bakelite material to heat also die casting in being embedded with the mould that has the part spool at least by the bakelite press, make the bakelite sealing ring of formation have at least part to be enclosed in the recess of spool, solve sealing ring 7 and occurred wearing and tearing or loosening or distortion or obscission easily, prevent effectively and avoided occur leaking the foam gap filler phenomenon, prolonged service life.

Sealing ring can adopt rubber to make, and sealing and leak resistance are good, and the preferred material of rubber seal is made for the material that adopts resistance to chemical attack.

Sealing ring adopts plastics or soft metal material to be made for preferably, has both had hardness, has softly, wear-resisting again, with fluid mouth 31 favorable sealing effect mutually, is not prone to distortion when being arranged on the spool 32 or becomes flexible or obscission good leak-proof effect.The soft metal material adopts and comprises that lead or tin are preferable selection.

Plastic seal ring employing poly-third or polypropylene or polyethylene or polyformaldehyde are preferable selection, and cost is low, and is wear-resisting, resistance to chemical attack, and sealing is better.

The external diameter that sealing ring 7 has part at least between 1.5 millimeters～7 millimeters for preferable selection, make foam gap filler more swimmingly outside the extrusive body, and good sealing effect.It is between 2.5 millimeters～5 millimeters that sealing ring 7 has its preferred size of external diameter of part at least.

Spool 32 adopts metal material to be made for preferred material, hardness and intensity height, and wearability is good, and the sealing ring 7 that is arranged on the spool 32 is is more firmly worn and torn with avoiding.

Feed liquor valve 2 also can comprise liquid inlet port 21, closure member 22 and back-moving spring 23 etc.

Stretch out the fixture 51 that internal channel and rifle body 1 connection can be provided with second sealing ring 5 and be used for fixing second sealing ring 5 at spool 32.

Can also adjuster 8 be set at the afterbody of rifle body 1, be used to regulate liquid valve 3 and discharge the many of foam gap filler amount or few.

The technical solution of the utility model, the foam tool of applicable any structure, such as the foam tool that is applicable to split-type structural, the locking mechanism that can lock or divide shooting body and foam device that the foam tool of split-type structural generally comprises rifle body, foam device and is provided with between rifle body and foam device.The rifle body can comprise part rifle body, have spool, switching device and the adjuster of part at least; Foam device can comprise part rifle body, feed liquor valve, fluid mouth and have the spool of part at least.Spool can also be made split type structure, and connect or separate by jockey.

Though below in conjunction with the embodiments the utility model has been made detailed description; but those of ordinary skill obviously can be recognized in the art; 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. foam tool, it comprises rifle body, feed liquor valve, liquid valve and switching device, switching device can make liquid valve open or close, liquid valve comprises fluid mouth, spool and back-moving spring, it is characterized in that: on described spool, recess is set, in the described recess sealing ring is set, described sealing ring seals mutually with described fluid mouth, and described spool head has at least part to expose described sealing ring.

2. according to the described foam tool of claim 1, it is characterized in that described recess is recess or the irregular recess in annular recess or a plurality of point type recess or the helicitic texture.

3. according to the described foam tool of claim 1, it is characterized in that described spool adopts metal material to make.

4. according to the described foam tool of claim 1, it is characterized in that the structure that described spool and sealing ring fuse.

5. according to the described foam tool of claim 1, it is characterized in that described sealing ring adopts rubber or bakelite or metal material to make.

6. according to the described foam tool of claim 5, it is characterized in that described rubber adopts the material of resistance to chemical attack to make.

7. according to the described foam tool of claim 5, it is characterized in that described metal material adopts the soft metal material.

8. according to the described foam tool of claim 5, it is characterized in that described metal material comprises lead or tin or aluminium or zinc or magnesium.

9. described according to Claim 8 foam tool is characterized in that described metal material comprises plumbous and tin or plumbous and zinc or tin and zinc or aluminium and lead or aluminium and tin or aluminum and zinc or magnesium and lead or magnesium and tin or lead and chromium.

10. according to the described foam tool of claim 1, it is characterized in that described sealing ring adopts plastics to make.

11., it is characterized in that described plastics adopt the material of resistance to chemical attack to make according to the described foam tool of claim 10.

12., it is characterized in that described plastics comprise poly-third or polypropylene or polyethylene or polyformaldehyde material according to the described foam tool of claim 10.

13. according to claim 10 or 11 or 12 described foam tools, it is characterized in that sealing ring that described plastics make adopts plastics by the injection machine fusing and be infused in and be embedded with in the mould of plastics that has the part spool at least, makes the plastic seal ring of formation have at least part to be enclosed in the recess that is provided with on the described spool.

14. according to claim 5 or 7 or 8 or 9 described foam tools, it is characterized in that sealing ring that described metal material makes adopts metal material by the die casting machine fusing and be infused in and be embedded with in the mould that has the part spool at least, makes the metal o-ring of formation have at least part to be enclosed in the recess that is provided with on the described spool.

15. according to the described foam tool of claim 5, it is characterized in that the sealing ring that described bakelite is made adopts the bakelite material to heat also die casting in being embedded with the mould that has the part spool at least by the bakelite press, makes the bakelite sealing ring of formation have at least part to be enclosed in the recess that is provided with on the described spool.

16., it is characterized in that described sealing ring has the external diameter of part at least between 1.5 millimeters～7 millimeters according to the described foam tool of claim 1 to 12.

17., it is characterized in that described sealing ring has the external diameter of part at least between 2.5 millimeters～5 millimeters according to the described foam tool of claim 16.