CN201115840Y - Foaming instrument - Google Patents

Abstract

A foaming tool includes a gun body, a feed liquid valve, a discharge liquid valve, a discharge liquid channel and a switch device; wherein, the switch device can lead the discharge liquid valve to be opened or closed, and the discharge liquid valve comprises a discharge liquid nozzle with an exit, a valve plug and an offsetting spring. The foaming tool is characterized in that: the head part of the valve plug is provided with screw threads, or a concave part or a convex part, and also comprises an obturating ring which is connected with the screw threads, or the concave part or the convex part arranged on the head part of the valve plug to form an integrated structure; the obturating ring that is connected with the valve plug into an integer is sealed with the discharge liquid nozzle, so as to effectively prevent and avoid foam joint mixture in the foaming tool having the phenomenon of leakage and/or solidification; the foaming tool effectively prevents and avoids the foam joint mixture or gas having the danger of leakage, combustion or explosion, improves the wearing resistance, the leak tightness and the stability of the obturating ring, and effectively avoids the foam joint mixture leaking outwards caused by that the obturating ring is worn, loose, deformed, broken or drops off, or is corroded by foam filling agent or by cleaning agent; the blocking phenomenon occurring at the exit or the channel in the foaming tool is effectively prevented and avoided; the phenomenon of leaking the foam filling agent or the gas caused by the deformation or breakage of the discharge liquid nozzle is effectively prevented; the structure is simple and reasonable, the foaming quantity and the quality of the foam joint mixture are greatly improved, so as to save the resource; the use is safe and clean, the service life is prolonged and the cost is low, thereby the batch production is suitable.

Description

Foam tool

Technical field

The utility model relates to the foam tool that is used to 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, such as: foam gap filler can adopt and comprise gas and the chemical raw material that self has air pressure, comprise butane gas and polyurethane mixing etc. such as employing, expand and form foam-like in the ejection back, spontaneous curing again, 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 (foam filling agent) is generally at the foam tool internal channel and self has air pressure or than the liquid status of hyperbar, 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, when having left over foam gap filler after on the feed liquor valve at foam tool the filling body that has foam gap filler being housed or during discontinuous operation or in the passage, 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.

Spool in the foam tool of prior art and fluid mouth are generally directly hard sealing; 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 after loading onto the filling body that has foam filling agent or during discontinuous operation or in the passage; that is to say and do not reach normal or stable 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, 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, reduce the gas release and the quality of foam gap filler, improved cost; Because foam gap filler has very strong viscous force, the constantly movable back and forth or twisting of spool when construction, be easy to the sealing ring in pulling (adhesion) fluid mouth, cause sealing ring wearing and tearing or loosening or distortion or obscission to occur, in addition, spool is constantly movable back and forth when construction, the head of spool is stabbing the endoporus that sealing ring is set on the fluid mouth easily, cause sealing place of sealing ring key disrepair phenomenon to occur, so, still exist and leak foam gap filler or gas or the foam filling agent phenomenon that is cured, even, the danger of burning or blast can occur, shorten 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 passage or the outlet 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 because of wearing and tearing or loosening or distortion occurring or coming off or be subjected to the foam filling agent corrosion or be subjected to the cleaning agent corrosion to cause that phenomenon appears leaking or solidifying in the foam gap filler in the passage in the rifle body.

Another purpose of the present utility model is to have prevented that effectively disrepair phenomenon from appearring in sealing ring.

Another purpose of the present utility model is to have prevented that effectively the fluid mouth from distortion occurring or break and cause and leak foam filling agent or gaseous phenomena.

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

In order to realize the foregoing invention purpose, the utility model provides foam tool, it comprises rifle body, feed liquor valve, liquid valve, liquid outlet channel and switching device, switching device can make liquid valve open or close, liquid valve comprises fluid mouth, spool and the back-moving spring that has outlet, it is characterized in that: the head of described spool is provided with screw thread or recess or protuberance, also comprise sealing ring, the all-in-one-piece structure that is connected with the screw thread of described spool head setting or recess or protuberance, be connected with described spool described sealing ring of all-in-one-piece and described fluid mouth seal mutually.

The head of described spool is provided with shoulder, and described screw thread or recess or protuberance are arranged on the described shoulder.

Recess and screw thread or protuberance and screw thread or protuberance and recess are set on the head of described spool or the shoulder.

Described sealing ring adopts plastics or metal material to make.

Screw thread or protuberance or recess are set in the endoporus of described sealing ring.

The screw thread of screw thread or protuberance or recess and the setting of described spool head or recess or protuberance are set in the endoporus of described sealing ring to match and is connected.

Described recess comprises a kind of of annular recess or point type recess or irregular recess, and described protuberance comprises a kind of of annular protrusion or point type protuberance or irregular protuberance.

Described spool adopts and comprises stainless steel material or comprise the stainless iron material or comprise that copper product makes.

Described spool has the external diameter of part at least between 1.5 millimeters～6 millimeters.

Preferred described spool has the external diameter of part at least between 2.5 millimeters～4.5 millimeters.

The outlet of described fluid mouth is exposed in the end of described spool.

Described fluid mouth adopts and comprises copper product or comprise the Stainless Steel material or comprise and do not embroider iron material or comprise that Zinc material makes.

The aperture that is exported to rare part of described fluid mouth is between 1.3 millimeters～3.0 millimeters, and perhaps, the cross section that the endoporus of the outlet of described fluid mouth has maximum transversal length is of a size of between 1.3 millimeters～3.5 millimeters.

The aperture that is exported to rare part of preferred described fluid mouth is between 1.5 millimeters～2.5 millimeters, and perhaps, the cross section that the endoporus of the outlet of described fluid mouth has maximum transversal length is of a size of between 1.5 millimeters～3.0 millimeters.

Described fluid mouth be exported to rare part thickness between 0.5 millimeter～5 millimeters.

The thickness that is exported to rare part of preferred described fluid mouth is between 0.5 millimeter～3.0 millimeters.

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

Described plastics adopt and comprise polypropylene material or comprise polythene material or comprise polyformaldehyde material or comprise pvc material.

Described metal material adopts and comprises zinc or comprise lead or comprise tin or comprise aluminium or comprise magnesium.

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.

Described plastic seal ring adopts plastics by the fusing of plastics machine and be infused in and be embedded with in the mould that has the part spool at least, makes the plastic seal ring of formation have at least part to be enclosed on the screw thread of described spool head setting and/or recess and/or the protuberance and the structure that links into an integrated entity.

Described plastic seal ring adopts and comprises polypropylene or polyethylene or polyformaldehyde or polyvinyl chloride by the fusing of plastics machine and be infused in and be embedded with in the mould that has the part spool at least, on the screw thread that makes the plastic seal ring of formation have at least part to be enclosed in to be provided with on the described spool head and/or recess and/or the protuberance and the structure that links into an integrated entity.

Described metal o-ring 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 on the screw thread of described spool head setting and/or recess and/or the protuberance and the structure that links into an integrated entity.

Described metal o-ring adopts and comprises zinc or lead or tin or aluminium or magnesium by the die casting machine fusing and be infused in and be embedded with in the mould that has the part spool at least, on the screw thread that makes the metal o-ring of formation have at least part to be enclosed in to be provided with on the described spool head and/or recess and/or the protuberance and the structure that links into an integrated entity.

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 sealing ring wearing and tearing or loosening or distortion or damaged or come off or be subjected to the foam filling agent corrosion or be subjected to the cleaning agent corrosion and cause foam gap filler to occur effectively to external leakage; Prevent effectively and avoided passage or the outlet in the foam tool clogging to occur; Prevented that effectively the fluid mouth from distortion occurring or break and cause and leak foam filling agent or gaseous phenomena, this is simple and reasonable for structure, the gas release and the quality of foam gap filler have been improved widely, saved resource, safe in utilization, cleaning, prolonged service life, 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 the local structure for amplifying schematic diagram of fluid mouth among Fig. 1, liquid outlet channel, sealing ring and spool part.

Structural representation when sealing ring that Fig. 3 is connected in the spool for emphasis among Fig. 2 illustrates and spool decompose.

Fig. 4 is the structural representation during liquid valve duty (opening) among Fig. 1.

Fig. 5 emphasis illustrates the local structure for amplifying schematic diagram of fluid mouth among Fig. 4, liquid outlet channel, sealing ring and spool part.

Fig. 6 emphasis illustrates the local structure for amplifying schematic diagram of fluid mouth, liquid outlet channel, sealing ring and the another kind of embodiment of spool part.

Fig. 7 emphasis illustrates the structural representation when sealing ring and spool decompose among Fig. 6.

Fig. 8 emphasis illustrates the local structure for amplifying schematic diagram of fluid mouth, liquid outlet channel, sealing ring and the another kind of embodiment of spool part.

Fig. 9 emphasis illustrates the structural representation when sealing ring and spool decompose among Fig. 8.

Figure 10 is be connected with the spool local structure for amplifying schematic diagram of all-in-one-piece another kind embodiment of sealing ring.

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 311-outlet 32-spool 321-shoulder 322-screw thread 323-recess 324-protuberance 325-end 33-back-moving spring 4-liquid outlet channel 5-switching device 6-second sealing ring 61-fixture 7-sealing ring 71-screw thread 72-protuberance 73-recess 8-adjuster

The specific embodiment

Foam tool of the present utility model, referring to whole accompanying drawings, it comprises rifle body 1, feed liquor valve 2, liquid valve 3, liquid outlet channel 4 and switching device 5, liquid valve 3 comprises the fluid mouth 31 that has outlet 311, spool 32 and back-moving spring 33, switching device 5 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 5 can be acted on the described spool 32 directly or indirectly, make spool 32 generation activities, the head of described spool 32 is provided with screw thread 322 or recess 323 or protuberance 324, also comprise sealing ring 7, the all-in-one-piece structure is connected with the screw thread 322 of described spool 32 head settings or recess 323 or protuberance 324, the described sealing ring 7 of the all-in-one-piece that is connected with described spool 32 seals mutually with described fluid mouth 31, 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, wearing and tearing or loosening or distortion or damaged or come off and cause foam tool to leak foam gap filler or gaseous phenomena have been avoided occurring effectively, 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, Fig. 3, Fig. 4 and Fig. 5, in order more clearly to illustrate be connected with spool 32 situation when being integral of sealing ring 7, structure when Fig. 3 illustrates that with the form of exploded view sealing ring 7 matches with spool 32 among Fig. 2, head at spool 32 is provided with screw thread 322, further, head at described spool 32 is provided with shoulder 321, screw thread 322 is set on shoulder 321, also comprise sealing ring 7, the endoporus of sealing ring 7 is provided with the screw thread 322 that is provided with on the shoulder 321 of screw thread 71 and the spool 32 heads all-in-one-piece structure that is connected, also can be on the shoulder 321 of the head of spool 32 or spool 32 head settings screw thread and recess or screw thread and protuberance to be set, match with recess with the screw thread that also is provided with in the endoporus of sealing ring 7 and protuberance or screw thread and to be connected, fastness is higher, sealing and good leak-proof effect, referring to Fig. 1 and Fig. 2, the all-in-one-piece sealing ring 7 that is connected with spool 32 seals mutually with described fluid mouth 31, be not prone to distortion or loosening or obscission, sealing and good leak-proof effect, sealing ring 7 can be made the less diameter all-in-one-piece structure that is connected with spool 32, the convenient installation, the fastness height, the flow and the flow velocity of foam filling agent have more been improved, improve gas release and quality, saved resource.Especially spool adopts and to comprise stainless steel material or comprise the stainless iron material or comprise that copper product makes, the screw thread 322 that is provided with on the spool 32 that spool that spool that screw thread 71 on the sealing ring 7 and stainless steel material are made or stainless iron material are made or copper product the are made all-in-one-piece structure that is connected, fastness and intensity are higher, wear-resistant, not perishable, be difficult for getting rusty, leak resistance is good, sealing ring 7 is along with spool 32 activities, solve common spool head effectively and stabbed the inboard of sealing ring easily and causing the sealing ring disrepair phenomenon, prevented and avoided interior foam filling agent appearance leakage of rifle body or curing phenomenon effectively.

Sealing ring adopts plastics or metal material to be made for preferable selection, the hardness height, not yielding, good sealing effect, the preferred material of plastic seal ring is made for the material that adopts resistance to chemical attack, such as, plastics can adopt and comprise polypropylene or materials such as polyethylene or polyformaldehyde or polyvinyl chloride, the preferred material of metal o-ring comprises that for adopting zinc or lead or tin or aluminium or magnesium etc. makes, hardness and intensity height also have soft, wear-resisting, corrosion-resistant, effective when sealing mutually with fluid mouth 31, be not prone to distortion, loosening, wearing and tearing or obscission, resistance to corrosion is strong, even soaked by foam filling agent or cleaning agent cleans, can not occur being corroded or loosening or distortion or breakage or obscission and cause leakage yet.Referring to Fig. 1 and Fig. 2, the outlet 311 of described fluid mouth 31 is exposed in the end 325 of spool 32, can clear up fluid mouth 31 in time and/or export solidfied material residual in 311 or dirt during spool 32 activities, prevented that clogging from appearring in outlet 311, prolonged service life, especially spool adopts stainless steel material or stainless iron material or copper product to make, the hardness height, more wear-resisting, not perishable, make end 325 cleaning fluid mouths 31 or export 311 better effects if.

Referring to Fig. 6 and Fig. 7, in order more clearly to illustrate be connected with spool 32 situation when being integral of sealing ring 7, structure when Fig. 7 illustrates that with the form of exploded view sealing ring 7 among Fig. 6 matches with spool 32, head at spool 32 is provided with recess 323, preferred structure is that the head at spool 32 is provided with shoulder 321, recess 323 and protuberance 324 are set on shoulder 321, the structure that protuberance 72 and recess 73 and described recess 323 and protuberance 324 match and link into an integrated entity is set in the endoporus of sealing ring 7, the fastness height, the external diameter of sealing ring 7 can be made small construction, the flow and the flow velocity of foam filling agent have been improved, gas release and quality have been improved, distortion or loosening or obscission have been prevented to occur, make and make sealing ring 7 height of one with spool 32 and stably seal mutually with fluid mouth 31, sealing effectiveness is lasting, has solved sealing ring and has occurred disrepair phenomenon easily, prevents and avoided occurring leaking or solidifying phenomenon effectively.

Referring to Fig. 8 and Fig. 9, in order more clearly to illustrate be connected with spool 32 situation when being integral of sealing ring 7, structure when Fig. 9 illustrates that with the form of exploded view sealing ring 7 among Fig. 8 matches with spool 32, head at spool 32 is provided with protuberance 324, the structure that recess 73 and described protuberance 324 match and link into an integrated entity is set in the endoporus of sealing ring 7, the fastness height, distortion or loosening or obscission have been prevented to occur, make and make sealing ring 7 height of one with spool 32 and stably seal mutually with fluid mouth 31, sealing effectiveness is lasting, solve sealing ring and occurred disrepair phenomenon easily, improve the gas release and the quality of foam filling agent, prevented and avoided occurring leaking or solidifying phenomenon effectively.Further, preferred construction is that the head at spool is provided with shoulder, and protuberance is set on shoulder.

Referring to Fig. 7, described recess 323 can be annular recess, also can be the point type recess, also can be for irregular recess a kind of etc., referring to Fig. 7 and Fig. 9, described protuberance 324 can be annular protrusion, also can be the point type protuberance, also can be for irregular protuberance a kind of etc., fastness height when sealing ring 7 is connected with spool 32 has prevented to occur distortion or loosening or obscission.

The sealing ring 7 that plastics are set at spool 32 heads adopts the material of resistance to chemical attack to make, wear-resisting, prevented by foam filling agent or cleaning agent corrosion, leak resistance is good, referring to Fig. 2, Fig. 6 and Fig. 8, spool 32 be connected with plastic seal ring 7 into a single integrated structure optimal technical scheme be with employing comprise the spool 32 of stainless steel material or stainless iron material or copper product have at least the part be embedded in the mould of processing plastic sealing ring, by the plastics machine with plastic molting and inject mould, make the plastic seal ring 7 of injection molded have at least part closely to be enclosed on the screw thread 322 and/or annular recess 323 and/or annular protrusion 324 that is provided with on spool 32 heads, the all-in-one-piece structure thereby the spool 32 that has formed employing stainless steel material or stainless iron material or copper product is connected with plastic seal ring 7, solve sealing ring and occurred wearing and tearing or loosening or distortion or breakage or obscission easily, prevent effectively and avoided occur leaking foam gap filler or gaseous phenomena, prolonged service life.The optimal technical scheme of plastic seal ring is to adopt to comprise polypropylene or polyethylene or polyformaldehyde or pvc material by the fusing of plastics machine and be infused in and be embedded with in the mould that has the part spool at least, makes the plastic seal ring 7 of formation have at least part to be enclosed on the screw thread 322 of setting of described spool 32 heads and/or the recess 323 and/or on the protuberance 324 and the structure that links into an integrated entity.

Also can be the sealing ring 7 that metal material is made to be set at spool 32 heads, wear-resisting, prevented by foam filling agent or cleaning agent corrosion, leak resistance is good, referring to Fig. 2, Fig. 6 and Fig. 8, spool 32 be connected with metal o-ring 7 into a single integrated structure optimal technical scheme be with employing comprise the spool 32 of stainless steel material or stainless iron material or copper product have at least the part be embedded in the mould of processing metal sealing ring, 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 on the screw thread 322 and/or annular recess 323 and/or annular protrusion 324 that is provided with on spool 32 heads, the all-in-one-piece structure thereby the spool 32 that has formed employing stainless steel material or stainless iron material or copper product is connected with metal o-ring 7, solve sealing ring and occurred wearing and tearing or loosening or distortion or breakage or obscission easily, prevent effectively and avoided occur leaking foam gap filler or gaseous phenomena, prolonged service life.The optimal technical scheme of metal o-ring is to adopt to comprise zinc or tin or lead or aluminium or magnesium 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 7 of formation have at least part to be enclosed on the screw thread 322 of described spool 32 head settings and/or the recess 323 and/or on the protuberance 324 and the structure that links into an integrated entity.

Spool 32 has the external diameter of part at least between 1.5 millimeters～6 millimeters the time, make flowing of foam filling agent more smooth and easy and strong, improved gas release and quality more, described spool has the external diameter preferred size of part at least between 2.5 millimeters～4.5 millimeters.

Fluid mouth 31 adopts and comprises copper product or comprise stainless steel material or comprise the stainless iron material or comprise Zinc material or comprise that aluminum makes, and is corrosion-resistant, the hardness height, surface abrasion resistance, good airproof performance is difficult for getting rusty, leak resistance is good, and sealing effectiveness is better when matching with sealing ring 7.

The outlet 311 of fluid mouth 31 has the aperture size of part at least between 1.3 millimeters～3.0 millimeters, the cross section that the endoporus of the outlet 311 of perhaps described fluid mouth 31 has the maximum transversal length N is of a size of between 1.3 millimeters～3.5 millimeters (referring to Fig. 5), prevented that the gas release and the quality of foam filling agent (foam is filled out and met agent) from appearring stopping up or reducing in fluid mouth 31, prevents and avoided occurring leaking foam filling agent or gaseous phenomena effectively.If export 311 aperture less than 1.3 millimeters or export 311 endoporus N less than 1.3 millimeters, the outlet 311 of fluid mouth 31 is easy to occur clogging, and the raw material of filler and gas are out of proportion from the outlet ejection, make the weak effect of foam filling agent ejection post-foaming (expansion), gas release is few, increase consumption, wasted resource; If export 311 aperture greater than 3.0 millimeters or export 311 endoporus N greater than 3.5 millimeters, the insufficient strength of the outlet 311 of fluid mouth 31, distortion or fracture phenomena appear easily, the difficulty that the outlet 311 that has increased fluid mouth 31 and sealing ring 7 seal mutually, be prone to leakage phenomenon, in addition, the raw material of filler and gas are from exporting the out of proportion of 311 ejections, make the weak effect of foam filling agent foaming (expansion), gas release is few, has increased consumption, has wasted resource, simultaneously, very easily cause the danger of burning or blast.

The outlet 311 of fluid mouth 31 has the aperture preferred size of part at least between 1.5 millimeters～2.5 millimeters, and the preferred size that the endoporus of the outlet 311 of perhaps described fluid mouth 31 has the cross section of maximum transversal length N is between 1.5 millimeters～3.0 millimeters.

The endoporus that the size that outlet 311 endoporus has a cross section of maximum transversal length is meant outlet is except that circle during other shape, the size of the cross section of the endoporus lateral length maximum that (outlet 311 is towards the top) recorded when fluid mouth 31 was vertical, can be ellipse or regular polygon or erose a kind of etc. such as, the cross section of endoporus.

The outlet 311 of fluid mouth 31 has the thickness of part at least between 0.5 millimeter～5 millimeters, it is strong that foam filling agent is sprayed, concentrate and safety, foaming effect is good, because spool 32 and fluid mouth 31 elastic force by back-moving spring 33 makes between them and seals mutually, this thickness has prevented to export 311 sealing place and distortion occurred or break and cause and leak foam filling agent or gaseous phenomena, during construction, avoided causing foam filling agent dispersion to occur or transverse injection causes serious consequence because of thickness is too thin, also avoided making outlet 311 put aside residue easily and clogging occurred because of thickness is too thick, safe in utilization, construction quality is good, and the preferred thickness of the outlet 311 of fluid mouth 31 is between 0.5 millimeter～3.0 millimeters.

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, promote closure member 22 and open liquid inlet port 21 by self having pressure 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, the sealing ring 7 that is provided with on the screw thread 322 that spool 32 heads are provided with and/or recess 323 and/or the protuberance 324 and fluid mouth 31 sealing mutually by the effect of back-moving spring 33, 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 and occurred wearing and tearing or loosening or distortion or breakage or obscission easily, prolonged service life, referring to Fig. 4 and Fig. 5, when starting working, Drawing switch device 5 drives spool 32 and moves, the sealing ring 7 of making one with spool 32 leaves the outlet 311 of fluid mouth 31 along with spool 32, make the inner chamber of fluid mouth 31 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 to occur wearing and tearing or distortion or loosening or breakage or obscission easily, prevented to occur leaking foam gap filler or gaseous phenomena effectively.

Referring to Figure 10, also can be that the part of sealing ring 7 is enclosed on the end 325 of spool 32, make sealing ring 7 better with the sealing effectiveness of spool 32.

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.

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

Referring to Fig. 1 and Fig. 4, stretch out the fixture 61 that internal channel and rifle body 1 connection can be provided with second sealing ring 6 and be used for fixing second sealing ring 6 at spool 32.

Referring to Fig. 1 and Fig. 4, 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 (22)

1. foam tool, it comprises rifle body, feed liquor valve, liquid valve, liquid outlet channel and switching device, switching device can make liquid valve open or close, liquid valve comprises fluid mouth, spool and the back-moving spring that has outlet, it is characterized in that: the head of described spool is provided with screw thread or recess or protuberance, also comprise sealing ring, the all-in-one-piece structure that is connected with the screw thread of described spool head setting or recess or protuberance, be connected with described spool described sealing ring of all-in-one-piece and described fluid mouth seal mutually.

2. according to the described foam tool of claim 1, it is characterized in that the head of described spool is provided with shoulder, described screw thread or recess or protuberance are arranged on the described shoulder.

3. according to claim 1 or 2 described foam tools, it is characterized in that on the head of described spool or the shoulder recess and screw thread or protuberance and screw thread or protuberance and recess being set.

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

5. according to claim 1 or 2 or 4 described foam tools, it is characterized in that in the endoporus of described sealing ring screw thread or protuberance or recess being set.

6. according to the described foam tool of claim 5, it is characterized in that being provided with in the endoporus of described sealing ring the screw thread of screw thread or protuberance or recess and the setting of described spool head or recess or protuberance and match and be connected.

7. according to claim 1 or 2 or 4 described foam tools, it is characterized in that described recess comprises a kind of of annular recess or point type recess or irregular recess, described protuberance comprises a kind of of annular protrusion or point type protuberance or irregular protuberance.

8. according to the described foam tool of claim 5, it is characterized in that described recess comprises a kind of of annular recess or point type recess or irregular recess, described protuberance comprises a kind of of annular protrusion or point type protuberance or irregular protuberance.

9. according to the described foam tool of claim 1, it is characterized in that described spool adopts and comprise stainless steel material or comprise the stainless iron material or comprise that copper product makes.

10. according to claim 1 or 2 or 4 or 9 described foam tools, it is characterized in that described spool has the external diameter of part at least between 1.5 millimeters～6 millimeters.

11., it is characterized in that described spool has the external diameter of part at least between 2.5 millimeters～4.5 millimeters according to the described foam tool of claim 10.

12., it is characterized in that the end of described spool exposes the outlet of described fluid mouth according to claim 1 or 2 or 4 or 9 described foam tools.

13., it is characterized in that described fluid mouth adopts and comprise copper product or comprise the Stainless Steel material or comprise and do not embroider iron material or comprise that Zinc material makes according to the described foam tool of claim 1.

14. according to claim 1 or 13 described foam tools, the aperture that is exported to rare part that it is characterized in that described fluid mouth is between 1.3 millimeters～3.0 millimeters, perhaps, the cross section of the endoporus of the outlet of described fluid mouth with maximum transversal length is of a size of between 1.3 millimeters～3.5 millimeters.

15. according to the described foam tool of claim 14, the aperture that is exported to rare part that it is characterized in that described fluid mouth is between 1.5 millimeters～2.5 millimeters, perhaps, the cross section of the endoporus of the outlet of described fluid mouth with maximum transversal length is of a size of between 1.5 millimeters～3.0 millimeters.

16. according to claim 1 or 2 or 4 or 9 or 13 described foam tools, it is characterized in that described fluid mouth be exported to rare part thickness between 0.5 millimeter～5 millimeters.

17. according to the described foam tool of claim 16, the thickness that is exported to rare part that it is characterized in that described fluid mouth is between 0.5 millimeter～3.0 millimeters.

18., 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 4.

19., it is characterized in that described plastics adopt and comprise polypropylene material or comprise polythene material or comprise polyformaldehyde material or comprise pvc material according to the described foam tool of claim 18.

20., it is characterized in that described metal material adopts and comprise zinc or comprise lead or comprise tin or comprise aluminium or comprise magnesium according to the described foam tool of claim 4.

21., it is characterized in that described sealing ring has the external diameter of part at least between 1.5 millimeters～7 millimeters according to claim 1 or 2 or 4 or 9 or 13 or 18 or 19 or 20 described foam tools.

22., 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 21.

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