CN101698179A

CN101698179A - Foam gun

Info

Publication number: CN101698179A
Application number: CN200710042549A
Authority: CN
Inventors: 王良
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-21
Filing date: 2007-06-21
Publication date: 2010-04-28

Abstract

The invention discloses a foam gun, which comprises a gun body, a connecting piece, a liquid inlet valve, a liquid outlet valve and a switching device, wherein the switching device can open or close the liquid outlet valve. The foam gun is characterized in that: the connecting piece made of plastic effectively prevents and avoids the leakage or curing of foam caulking agent in the gun body, effectively overcomes the defect of difficult construction or unavailable construction of the foam gun, prolongs the service life of the foam gun and provides the plastic connecting piece which has self-wetting property and chemical corrosion-resistant property; the foam caulking agent is not easy to adhere to the connecting piece and is easy to peel off or clean so as to prolong the service life; and the connecting piece is abrasion resistant and not easy to oxidize and has high strength, so the foam gun is safe and reliable, has low cost and excellent anti-leakage performance, and is suitable for mass production.

Description

Foam gun

Technical field

The present invention relates to make a kind of foam gun of foam gap filler ejection and foaming.

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 urethane raw etc. such as employing, ejection post-foaming＜expansion〉and form foam-like, spontaneous curing again, during use, by foam gun foam gap filler is discharged and reach installation, joint filling, mending-leakage, insulation, insulation or purpose such as bonding, foam gap filler is generally in the foam gun internal channel and self has air pressure or than the liquid status of hyperbar, the ejection back forms the joint filling thing of porous (spongy), when the needs foam gap filler is constructed, the tank body that will have foam gap filler is screwed on the connector of foam gun, make the part that has at least of tank body outlet insert the import of connector or insert in the inlet of feed liquor valve, foam gap filler in the tank body enters in the internal channel of rifle body by the pressure of self, liquid valve is opened when the Drawing switch device, foam gap filler in the internal channel discharges foaming and forms filler (joint filling thing) and be bonded in needed place from the fluid mouth, but, connector exists the defective of following several respects: when the foam gap filler in (1) tank body on being contained in connector uses up, it is withdrawed from, foam gap filler residual in the tank body or in the rifle body is bonded on the connector from the import ejection rapidly, when loading onto tank body once more, because foam gap filler is bonded on the connector and is difficult to cleaning and maybe can't clears up, make new tank body be difficult to maybe can't be screwed on the connector, cause difficulty is installed, scrapping appears in perhaps whole foam device or foam gun, has shortened service life.(2) since on the connector or in the import residual joint filling thing be difficult to cleaning, sealing place that occurs easily when tank body is connected with connector between them causes seal failure because of residual thing is arranged, be easy to occur the side leakage phenomenon, foam gap filler is easy to occur being sprayed on one's body or be difficult to clean on the clothing or on the article, be bonded at accidentally on the eyes and can cause serious consequence, even the danger of burning or exploding also can occur.(3) often stop up import on the connector or the inlet on the feed liquor valve easily because of residual gap filler, cause inlet and closure member in the feed liquor valve to be difficult to seal mutually effectively and foam gap filler occurs and leak or solidify phenomenon, cause whole foam device or foam gun to occur scrapping, shorten service life, wasted resource.(4) because common connector adopts metal material to make, such as adopting aluminium or zinc alloy material, often make tank body and connector be difficult to spin mutually because of easy oxidation, cause constructional difficulties maybe can't construct, simultaneously, oxide also destroys the sealing of connection between connector and the tank body easily and the phenomenon of leakage occurs.

Summary of the invention

The objective of the invention is the defective that exists at above-mentioned prior art and propose a kind of foam gun that prevents effectively and avoided occurring seepage foam gap filler phenomenon.

Another object of the present invention is to prevent and avoided rifle body interior foam gap filler appearance curing or clogging effectively.

Another object of the present invention is to have solved foam gun effectively to occur the defective that constructional difficulties maybe can't be constructed easily, has improved the service life of foam gun.

Another object of the present invention provides the plastic fastening with self-lubricity and resistance to chemical attack, and foam gap filler is difficult for being bonded on the connector, peels off easily or cleans or clear up, and has prolonged service life.

That another object of the present invention provides is wear-resisting, intensity is high and be difficult for the connector of oxidation, and cost is low, and is safe and reliable, and leak resistance is good, is fit to produce in enormous quantities.

In order to realize the foregoing invention purpose, the present invention adopts following technical scheme: comprise rifle body, connector, feed liquor valve, liquid valve and switching device, switching device can make liquid valve open or close, and it is characterized in that: described connector adopts plastics to make.

Described plastic fastening adopts the plastics of resistance to chemical attack to make.

On the described connector annular element is set, described annular element inboard is provided with screw thread, and the diameter dimension of described annular element endoporus is between 33 millimeters to 50 millimeters.

On the described plastic fastening import is set, described import communicates with described feed liquor valve.

Described feed liquor valve comprises valve body, inlet and locking device, and described valve body has the part interlocking at least in described plastic fastening, and described valve body is connected with described rifle body.

The described plastic fastening all-in-one-piece structure that is connected with described valve body.

Described plastic fastening has at least part that screw thread and/or protuberance and/or recess are set, and is connected with the screw thread that has the part setting on the described valve body at least and/or recess and/or protuberance or blocks.

Described valve body is connected by screw thread with described rifle body.

Described plastic fastening adopts plastics by the fusing of plastics machine and be infused in and be embedded with in the mould of plastics that has the part valve body at least, the plastic fastening of formation is enclosed on the described valve body that has part at least and the all-in-one-piece structure that is connected.

Described feed liquor valve comprises valve body, inlet and locking device, and described plastic fastening is connected by the screw thread that is provided with on the valve body with described rifle body.

Described plastic fastening and described rifle body are connected by the screw thread that is provided with on the screw thread that is provided with on the described plastic fastening and the described rifle body.

Described feed liquor valve comprises valve body, inlet and locking device, and described valve body and described plastic fastening are made the structure of one.

Described feed liquor valve comprises valve body, inlet and locking device, and described inlet extends in the described plastic fastening or has at least part to stretch out described plastic fastening.

Described plastic fastening adopts polyformaldehyde or polypropylene or nylon material to make.

Described plastic fastening employing polyethylene or polyvinyl chloride or polystyrene or makrolon material are made.

Described valve body adopts metal material to make.

Described metal material adopts and comprises that zinc or copper or aluminium alloy makes.

Described valve body adopts metal material or plastics to make.

Described metal material adopts and comprises that zinc or copper or aluminium alloy makes, and described plastics adopt polyformaldehyde or polypropylene or nylon material to make.

Described locking device comprises closure member and back-moving spring.

Adopt the present invention of technique scheme, prevent and avoided occurring seepage foam gap filler phenomenon effectively, prevent and avoided rifle body interior foam gap filler appearance curing or clogging effectively, solve foam gun effectively and occurred the defective that constructional difficulties maybe can't be constructed easily, improved the service life of foam gun, plastic fastening with self-lubricity and resistance to chemical attack is provided, foam gap filler is difficult for being bonded on the connector, peel off easily or clean or clear up, prolonged service life, connector is wear-resisting, intensity is high and be difficult for oxidation, safe and reliable, cost is low, and leak resistance is good, is fit to produce in enormous quantities.

Description of drawings

Fig. 1 is the sectional structure schematic diagram of the embodiment of the invention.

Fig. 2 is the sectional structure schematic diagram when valve body and plastic fastening separate before assembling with the rifle body among Fig. 1.

Fig. 3 is the schematic top plan view of plastic fastening among Fig. 1.

The sectional structure schematic diagram that Fig. 4 is connected with plastic fastening for another kind of valve body.

The sectional structure schematic diagram that Fig. 5 is connected with plastic fastening for another kind of valve body.

The sectional structure schematic diagram that Fig. 6 is connected with plastic fastening for housing.

Structural representation when Fig. 7 is connected with plastic fastening for tank body.

Structural representation when Fig. 8 separates with plastic fastening for tank body.

The sectional structure schematic diagram that Fig. 9 is connected with plastic fastening for another kind of valve body.

Figure 10 is the structural representation when valve body and plastic fastening decompose among Fig. 9.

Figure 11 is the sectional structure schematic diagram of another kind of embodiment.

Among the figure

1-rifle body 10-screw thread 2-connector 21-import 22-annular element 23,24-screw thread 25-protuberance 3-

feed liquor valve

31,31`, 31``-valve body 311,311`-screw thread 312-recess 32-inlet 33-closure member 34-back-moving spring 35-sealing ring 36-fixture 4-liquid valve 41-fluid mouth 42-spool 43-back-moving spring 44, the outlet of 44 '-sealing ring 45-fixture 5-drain pipe 6-switching device 7-adjuster 8-tank body 81-screw thread 82-tank body

The specific embodiment

A kind of foam gun of the present invention, referring to whole accompanying drawings, comprise rifle body 1, connector 2, feed liquor valve 3, liquid valve 4 and switching device 6, switching device 6 can make liquid valve 4 open or close, it is characterized in that: described connector 2 adopts plastics to make, and prevents and avoided occurring seepage foam gap filler or gaseous phenomena effectively; Prevent and avoided rifle body interior foam gap filler appearance curing or clogging effectively; Solve foam gun effectively and occurred the defective that constructional difficulties maybe can't be constructed easily, improved the service life of foam gun; Foam gap filler is difficult for being bonded on the connector, peels off easily or cleans or clear up, and has prolonged service life; Plastic fastening is wear-resisting, intensity is high and be difficult for oxidation, and cost is low, and is safe and reliable, and leak resistance is good, is fit to produce in enormous quantities.

Referring to Fig. 1, it comprises rifle body 1, connector 2, feed liquor valve 3, liquid valve 4 and switching device 6, switching device 6 can make liquid valve 4 open or close, can also comprise drain pipe 5, an end of long drain pipe 5 is connected with rifle body 1, the other end is connected with fluid mouth 41, referring to Fig. 1, Fig. 2 and Fig. 4, feed liquor valve 3 comprises valve body 31, inlet 32 and locking device, locking device can comprise closure member 33 and back-moving spring 34, import 21 is set on plastic fastening 2, the outlet 82 that is used to make external tank body and import 21 be connected (referring to Fig. 7), import 21 communicates with the inlet 32 of feed liquor valve 3, and the foam gap filler in the tank body is successfully entered in the internal channel of rifle body; Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 7 and Fig. 8, annular element 22 is set on plastic fastening 2, in described annular element 22 inboards screw thread 23 is set, the diameter dimension of described annular element 22 endoporus is between 33 millimeters to 50 millimeters, plastic fastening 2 is matched with external tank body 8 (referring to Fig. 7) better, external tank body more stably is connected on the plastic fastening 2 and is not prone to and come off or phenomenon of rupture, this is rational in infrastructure, result of use is good, easy to assembly, safe and reliable, be fit to produce in enormous quantities.

Referring to Fig. 1 and Fig. 2, Fig. 2 illustrates the structural representation when 31 interlockings of valve body among Fig. 1 separate before assembling with rifle body 1 in plastic fastening 2.Valve body 31 has the part interlocking at least in described plastic fastening 2, the plastic fastening 2 all-in-one-piece structure that is connected with valve body 31, screw thread 24 on screw thread 311 and/or recess 312 and/or protuberance and the plastic fastening 2 and/or protuberance 25 and/or recess are set on the valve body 31 to be connected or to block, the fastness height has prevented that effectively the seepage phenomenon from appearring in the junction between them; Valve body 31 is connected with rifle body 1, and further, valve body 31 is connected with screw thread 10 by screw thread 311` with rifle body 1, can also acquire viscose glue between them, improves the fastness that connects between them more.

Further, plastic fastening 2 with the optimal technical scheme that valve body 31 is connected is: plastic fastening 2 adopts plastics to melt and be infused in by the plastics machine and is embedded with in the mould that has part valve body 31 at least, the plastic fastening 2 of formation is enclosed on the described valve body 31 that has part at least and the all-in-one-piece structure that is connected, improved the fastness that plastic fastening 2 is connected with valve body 31 more, sealing effectiveness is better, referring to Fig. 1 and Fig. 2, valve body 31 has the part interlocking at least in described plastic fastening 2, the plastic fastening 2 all-in-one-piece structure that is connected with valve body 31, screw thread 24 on screw thread 311 and/or recess 312 and/or protuberance and the plastic fastening 2 and/or protuberance 25 and/or recess are set on the valve body 31 to be connected, the fastness height, good sealing effect has solved the seepage phenomenon that the joint between them occurs easily.

Because connector adopts plastics to make, foam gap filler is difficult for being bonded on the plastic fastening 2, even be bonded on the plastic fastening 2, also peel off easily or clean or clear up, referring to Fig. 7, have the screw thread 81 that is provided with on the tank body 8 of foam gap filler very successfully with plastic fastening 2 on annular element 22 on the screw thread 23 that is provided be connected, at this moment, outlet 82 on the tank body 8 also connects mutually hermetically with import 21, avoided occurring the side leakage phenomenon effectively, simultaneously, the shoulder that is provided with in the import 21 promotes outlet 82 and moves and open, and foam gap filler enters the internal channel of rifle body from the import 21 of plastic fastening 2 rapidly, has solved the difficulty when tank body is connected with connector, prevented to occur the seepage phenomenon effectively, prevented that effectively solidifying or clogging from appearring in internal channel.Fig. 8 is the structural representation of tank body 8 when separating before being connected with plastic fastening 2.

Further, plastic fastening 2 adopts the plastics of resistance to chemical attack to make, make such as materials such as adopting polyformaldehyde or polypropylene, also has self-lubricity, foam gap filler more is difficult for being bonded on the plastic fastening, peel off easily or clean or clear up, be retained in plastic fastening 2 imports 21 or the foam gap filler in the inlet 32 also be easy to the cleaning or peel off or clean, external tank body is assemblied on the plastic fastening 2 easily, prevented to occur the seepage phenomenon, solved the defective that constructional difficulties maybe can't be constructed effectively, even having the cleaning agent of strong corrosion, cleans in employing acetone etc., also be not prone to corrosion phenomenon, the leakage phenomenon of having avoided internal channel to occur has easily prolonged service life.Especially adopt polyformaldehyde material to make, more wear-resisting, the intensity height, self-lubricity is better, and foam gap filler more is difficult for being bonded on the plastic fastening, peels off easily or cleans or clear up, be retained in plastic fastening 2 imports 21 or the foam gap filler in the inlet 32 also be easy to the cleaning or peel off or clean, external tank body easily and safely is assemblied on the plastic fastening 2, has prevented to occur the seepage phenomenon, solved the defective that constructional difficulties maybe can't be constructed effectively.

Plastic fastening 2 can also adopt polyethylene or materials such as polyvinyl chloride or polystyrene or Merlon to make, and has solved the difficulty when tank body is connected with connector, has prevented to occur the seepage phenomenon effectively.

Further, valve body 31 adopts metal materials to make, metal material adopts and comprises that zinc or copper or aluminium alloy makes, and has improved plastic fastening 2 and has been connected intensity on the rifle body 1, has prevented appearance fracture or breakage or seepage phenomenon.Also can be the structure that valve body and plastic fastening are made one, save material, simultaneously, also prevent to occur the seepage phenomenon.

Referring to Fig. 4, can also be that valve body 31` makes straight-through up and down structure interlocking in plastic fastening 2, saved material, reduced cost.

Referring to Fig. 5, also can be that feed liquor valve 3 comprises valve body 31, inlet 32 and locking device, locking device can comprise closure member 33 and back-moving spring 34, can also comprise sealing ring 35 and the fixture 36 that is used for fixing sealing ring 35, plastic fastening 2 is connected by the screw thread 311 that is provided with on the valve body 31 with the rifle body, that is to say, screw thread 311 is set on valve body 31, during assembling, at first the screw thread 24 that is provided with on the part of screw thread 311 and the plastic fastening 2 is connected, in order to improve fastness and sealing effectiveness more, between them, acquire viscose glue; The screw thread that is provided with on the screw thread 311 and the housing that expose on the part valve body 31 of plastic fastening 2 is connected (with reference to figure 2 and Fig. 1), and acquires viscose glue between them, has improved fastness and sealing effectiveness when being connected between them more.

Referring to Fig. 6 or Figure 11, described feed liquor valve comprises valve body 31, inlet 32 and locking device, described valve body 31 and described plastic fastening 2 are made the structure of one, also adopt polyformaldehyde material and the connector that adopts polyformaldehyde material to make to make the structure of one such as valve body, save material, cost is low.Also can be plastic fastening 2 directly be connected by the screw thread 10 of setting on the screw thread 24 that is provided with on the plastic fastening 2 and the housing 1 with rifle body 1, acquire viscose glue in the plastic fastening 2 and the junction of rifle body 1, improved the fastness that connects between them more, prevent to occur the phenomenon of leakage effectively, solved the defective that the difficulty of construction maybe can't be constructed.

Referring to Fig. 9 and Figure 10, feed liquor valve 3 comprises valve body 31``, inlet 32 and locking device, and inlet 32 extends in the described plastic fastening 2 or has at least part to stretch out described plastic fastening 2, and outlet and the inlet 32 of being convenient to external tank body connect; Valve body 31`` and plastic fastening 2 are connected by screw thread, also can make the valve body 31`` interlocking all-in-one-piece structure that is connected in plastic fastening 2 by mould, prevent and avoided occurring seepage foam gap filler phenomenon effectively; Prevent and avoided rifle body interior foam gap filler appearance curing or clogging effectively; Solve foam gun effectively and occurred the defective that constructional difficulties maybe can't be constructed easily, improved the service life of foam gun; Foam gap filler is difficult for being bonded on the connector, peels off easily or cleans or clear up, and has prolonged service life; Plastic fastening 2 is difficult for oxidation and resistance to chemical attack, cost is low, be fit to produce in enormous quantities, also can be that valve body 31`` adopts metal material or plastics to make, the intensity height, easy to process, preferred metal materials adopts and to comprise that zinc or copper or aluminium alloy makes, and perhaps preferred plastics adopt polyformaldehyde or polypropylene or nylon material to make.Referring to Figure 10, in order more clearly to understand the structure of Fig. 9, Figure 10 illustrates the structure of Fig. 9 with the form of exploded view.

When the needs foam gap filler is constructed, the tank body that foam gap filler is housed is screwed on the plastic fastening 2 of foam gun＜referring to Fig. 1 and Figure 11 〉, the air pressure that foam gap filler has by self backs down closure member 33 and enters in the internal channel, Drawing switch device 6, switching device 6 drives spools 42 and moves and open fluid mouth 41, foam gap filler in the internal channel is successfully discharged from fluid mouth 41 and foam＜expand 〉, form the joint filling thing of porous (spongy), be bonded in needed place.

Referring to Figure 11, liquid valve 4 can comprise fluid mouth 41, spool 42 and back-moving spring 43, can also be included between fluid mouth 41 and the spool 42 sealing ring 44 or the seal that are provided with, is used to improve the effect that spool 42 and fluid mouth 41 seal mutually.Can also stretch out the fixture 45 that rifle body 1 is provided with sealing ring 44` with rifle body 1 connection and is used for fixing sealing ring 44` at spool 42.

Can also adjuster 7 be set at the afterbody of rifle body 1, be used to regulate liquid valve 4 and discharge the many of foam gap filler amount or few.

Technical scheme of the present invention, be suitable for the foam gun of any structure, such as foam gun applicable to split-type structural, the locking mechanism that can lock or divide shooting body and foam device that the foam gun of split-type structural generally comprises rifle body, foam device and is provided with between rifle body and foam device.The rifle body generally comprises partial shell, has spool, switching device and the adjuster of part at least; Foam device generally comprises the spool of partial shell, connector, feed liquor valve, drain pipe, fluid mouth and part.Spool can also be made split-type structural, and connect or separate by jockey.

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. a foam gun comprises rifle body, connector, feed liquor valve, liquid valve and switching device, and switching device can make liquid valve open or close, and it is characterized in that: described connector adopts plastics to make.

2. according to the described foam gun of claim 1, it is characterized in that described plastic fastening adopts the plastics of resistance to chemical attack to make.

3. according to the described foam gun of claim 1, it is characterized in that on the described connector annular element being set, described annular element inboard is provided with screw thread, and the diameter dimension of described annular element endoporus is between 33 millimeters to 50 millimeters.

4. according to the described foam gun of claim 1, it is characterized in that on the described plastic fastening import being set, described import communicates with described feed liquor valve.

5. according to claim 1 or 2 or 3 or 4 described foam guns, it is characterized in that described feed liquor valve comprises valve body, inlet and locking device, described valve body has the part interlocking at least in described plastic fastening, and described valve body is connected with described rifle body.

6. according to the described foam gun of claim 5, it is characterized in that the described plastic fastening all-in-one-piece structure that is connected with described valve body.

7. according to the described foam gun of claim 5, it is characterized in that described plastic fastening has at least part that screw thread and/or protuberance and/or recess are set, be connected with the screw thread that has the part setting on the described valve body at least and/or recess and/or protuberance or block.

8. according to the described foam gun of claim 5, it is characterized in that described valve body is connected by screw thread with described rifle body.

9. according to the described foam gun of claim 5, it is characterized in that described plastic fastening adopts plastics by the fusing of plastics machine and be infused in and be embedded with in the mould of plastics that has the part valve body at least, the plastic fastening of formation is enclosed on the described valve body that has part at least and the all-in-one-piece structure that is connected.

10. according to claim 1 or 2 or 3 or 4 described foam guns, it is characterized in that described feed liquor valve comprises valve body, inlet and locking device, described plastic fastening is connected by the screw thread that is provided with on the valve body with described rifle body.

11., it is characterized in that described plastic fastening and described rifle body are connected by the screw thread that is provided with on the screw thread that is provided with on the described plastic fastening and the described rifle body according to claim 1 or 2 or 3 or 4 described foam guns.

12. according to claim 1 or 2 or 3 or 4 described foam guns, it is characterized in that described feed liquor valve comprises valve body, inlet and locking device, described valve body and described plastic fastening are made the structure of one.

13. according to claim 1 or 2 or 3 described foam guns, it is characterized in that described feed liquor valve comprises valve body, inlet and locking device, described inlet extends in the described plastic fastening or has at least part to stretch out described plastic fastening.

14., it is characterized in that described plastic fastening adopts polyformaldehyde or polypropylene or nylon material to make according to claim 1 or 2 or 3 or 4 described foam guns.

15., it is characterized in that described plastic fastening adopts polyethylene or polyvinyl chloride or polystyrene or makrolon material to make according to claim 1 or 2 or 3 or 4 described foam guns.

16., it is characterized in that described valve body adopts metal material to make according to the described foam gun of claim 5.

17., it is characterized in that described metal material adopts and comprise that zinc or copper or aluminium alloy makes according to the described foam gun of claim 16.

18., it is characterized in that described valve body adopts metal material to make according to the described foam gun of claim 10.

19., it is characterized in that described metal material adopts and comprise that zinc or copper or aluminium alloy makes according to the described foam gun of claim 18.

20., it is characterized in that described valve body adopts metal material to make according to the described foam gun of claim 12.

21., it is characterized in that described metal material adopts and comprise that zinc or copper or aluminium alloy makes according to the described foam gun of claim 20.

22., it is characterized in that described valve body adopts metal material or plastics to make according to the described foam gun of claim 13.

23. according to the described foam gun of claim 22, it is characterized in that described metal material adopts and comprise that zinc or copper or aluminium alloy makes that described plastics adopt polyformaldehyde or polypropylene or nylon material to make.

24., it is characterized in that described locking device comprises closure member and back-moving spring according to the described foam gun of claim 5.

25., it is characterized in that described locking device comprises closure member and back-moving spring according to the described foam gun of claim 10.

26., it is characterized in that described locking device comprises closure member and back-moving spring according to the described foam gun of claim 12.

27., it is characterized in that described locking device comprises closure member and back-moving spring according to the described foam gun of claim 13.