CN101367069A - Foaming gun - Google Patents

Abstract

The invention discloses a foaming gun, which comprises a gun body, a liquid inlet valve, a liquid outlet valve, a drain pipe, and a switch device, wherein the liquid inlet valve comprises a valve body, a liquid inlet and a closing device, the liquid outlet valve comprises a liquid outlet nozzle, a valve core and a return spring, and the switch device can ensure that the liquid outlet nozzle and the valve core in the liquid outlet valve are closed or communicated. The foaming gun is characterized in that the gun body is made of plastic, a tee channel is rabbeted in the gun body and comprises a first opening, a second opening and a third opening, at least partial valve body is connected with the first opening, the drain pipe is connected with the second opening, and the valve core is connected or lapped or indirectly connected with the switch device through the third opening. The foaming gun effectively prevents a foam caulking agent from leaking, overcomes the defect that the gun body is susceptible to cracks or flow seams or micropores or fracture or weeping and fails to construct or block an inner channel, has low cost and long service life, and is suitable for mass production.

Description

Foam gun

Technical field

The present invention relates to make the 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 feed liquor valve of foam gun, 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, and the 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.

Foam gun on the existing market generally is divided into metal and plastics two big classes, and the metal species foam gun mainly is that larger area rifle body adopts metal material to make, and yield rate is low, and cost is very high; The feed liquor valve, liquid valve, drain pipe and switching device are installed on the rifle body, on the rifle body, formed and made liquid valve and the feed liquor valve structure of UNICOM mutually, because the bigger and complicated structure of area of rifle body, adding man-hour, both having made is the injection force that improves die casting machine, be dispersed to large tracts of land and in the complicated structure, obviously be that each local pressure also is not enough, cause the density that after processing (casting or die casting) is shaped, is easy to occur slight crack or stream seam or product not enough, cause large tracts of land or local pore (micropore) easily and cause the phenomenon of leakage, 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, even can't clean, be bonded at accidentally on the eyes and can cause serious consequence, even the danger of burning or exploding also can appear, in addition, cause that also rifle body inner foam gap filler is cured, and causes whole foam gun to scrap.Large-area rifle body adopts plastics to make in the plastics class foam gun, adding man-hour, both having made is the injection force that improves the plastics machine, be dispersed to large tracts of land and in the complicated structure, obviously be that each local pressure also is not enough, cause the not enough or micropore of the density that after processing (injection moulding) is shaped, is easy to occur slight crack or stream seam or product and cause the phenomenon of leakage, 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, even can't clean, be bonded at accidentally on the eyes and can cause serious consequence, even the danger of burning or exploding also can occur, in addition, cause that also rifle body inner foam gap filler is cured, and causes whole foam gun to scrap; When drain pipe and feed liquor valve are installed on the plastics rifle body, when perhaps being connected by bolted, if it is firmly big slightly, be easy to occur junction distortion or break and cause the phenomenon of leakage, if it is firmly slightly little, tightness is not enough, has anticyclonic foam gap filler and is easy to be cured or leak out from the junction in the rifle body, causes foam gun to scrap.

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 the rifle body to occur slight crack or stream seam or micropore or distortion easily or break or leakage and causing can't be constructed or internal channel stops up defective, has prolonged service life.

Another object of the present invention is that the raising drain pipe is stable with fastness and sealing that the feed liquor valve is connected with the rifle body, and safe and reliable, leak resistance is good.

Another object of the present invention provides high-quality, foam gun that cost is low, and processing is simple, light weight, and is easy to operate, and long service life is fit to produce in enormous quantities.

In order to realize the foregoing invention purpose, the present invention adopts following technical scheme: comprise the rifle body, the feed liquor valve, liquid valve, drain pipe and switching device, the feed liquor valve comprises valve body, inlet and locking device, liquid valve comprises the fluid mouth, spool and back-moving spring, switching device can make fluid mouth in the liquid valve and spool cut out or open-minded, it is characterized in that: described rifle body adopts plastics to make, interlocking has three circulation passage in the described rifle body, described three circulation passage comprise first port, second port and third connectivity mouth, described valve body has at least part to be connected with described first port, described drain pipe is connected with described second port, and described spool is connected with described switching device through described third connectivity mouth or overlaps mutually or be connected indirectly.

Described valve body has at least part to be connected by screw thread with described first port, and described drain pipe is connected by screw thread with described second port.

Described valve body has at least part to connect hermetically mutually with described first port, and described drain pipe connects mutually hermetically with described second port.

Described valve body has the joint employing interpolation viscose glue of part and described first port at least or seals mutually by sealing ring, and described drain pipe adopts the interpolation viscose glue with the joint of described second port or seals mutually by sealing ring.

Described valve body has at least part and described first port to make the structure of one.

Described drain pipe is connected by screw thread with described second port.

Described drain pipe connects mutually hermetically with described second port.

Described drain pipe adopts the interpolation viscose glue with the connection of described second port or seals mutually by sealing ring.

Seal mutually by at least one sealing ring between described spool and the described third connectivity mouth.

On the described sealing ring fixture is set.

Described fixture has at least part to be arranged in the described third connectivity mouth.

Described fixture has at least part to be connected by screw thread with described third connectivity mouth.

Described three circulation passage adopt plastics or bakelite to make.

Described plastic three-way passage adopts polyformaldehyde material to make.

Annular stiffening ring is set on the tube wall of at least one port of described three circulation passage.

Plastics or bakelite three circulation passage made of described interlocking in plastics rifle body adopt plastics by the fusing of plastics machine and be infused in the mould that is embedded with three circulation passage that the plastics that have part at least or bakelite make, and make three circulation passage interlocking that plastics or bakelite the make all-in-one-piece structure that is connected in the plastics rifle body of injection molded and with the rifle body.

Three circulation passage that the employing polyformaldehyde of described interlocking in plastics rifle body made adopt plastics by the fusing of plastics machine and be infused in the mould that is embedded with three circulation passage that the polyformaldehyde that has part at least makes, and make three circulation passage interlocking that polyformaldehyde the makes all-in-one-piece structure that is connected in the plastics rifle body of injection molded and with the rifle body.

Described three circulation passage adopt metal material to make.

Described metal three circulation passage adopt aluminium or zinc or Cu alloy material to make.

Three circulation passage that the metal material of described interlocking in plastics rifle body made adopt plastics by the fusing of plastics machine and be infused in and be embedded with in the mould that has three circulation passage that the part metals material makes at least, make three circulation passage interlocking that metal material the makes all-in-one-piece structure that is connected in the plastics rifle body of injection molded and with the rifle body.

Employing aluminium or zinc or copper three circulation passage that become of described interlocking in plastics rifle body adopt plastics by the fusing of plastics machine and be infused in the mould that is embedded with three circulation passage that the aluminium that has part at least or zinc or copper becomes, and make three circulation passage interlocking that aluminium or zinc or copper the become all-in-one-piece structure that is connected in the plastics rifle body of injection molded and with the rifle body.

Described rifle body employing nylon or polyethylene or polypropylene or polyformaldehyde material are made.

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, having solved the rifle body occurs slight crack or stream seam or micropore or distortion easily or breaks or leakage and causing can't be constructed or internal channel stops up defective, it is stable with fastness and sealing that the feed liquor valve is connected with the rifle body to improve drain pipe, safe and reliable, leak resistance is good, high-quality is provided, the foam gun that cost is low, processing is simple, light weight, easy to operate, long service life is fit to produce in enormous quantities.

Description of drawings

Fig. 1 is the structure cross-sectional schematic of the embodiment of the invention.

Fig. 2 is the structure cross-sectional schematic during three circulation passage independences among Fig. 1.

Fig. 3 is the structure cross-sectional schematic of another kind of three circulation passage embodiment.

Fig. 4 is the structure cross-sectional schematic of another kind of three circulation passage embodiment.

Fig. 5 is the structure cross-sectional schematic of another kind of embodiment.

Fig. 6 is the structure cross-sectional schematic of another kind of embodiment.

Among the figure:

1-rifle body, 2-feed liquor valve, 21-valve body, 22-inlet, 23-closure member, 24-back-moving spring, 3-liquid valve, 31-fluid mouth, 32-spool, 33-back-moving spring 34,34`-sealing ring 35-fixture 4-drain pipe 5-switching device 6-three circulation passage 61-the first port 62-the second port 63- third connectivity mouth 64,64`-annular stiffening ring 65,65`, 65``-screw thread 7-adjuster

Foam gun of the present invention, referring to whole accompanying drawings, comprise rifle body 1, feed liquor valve 2, liquid valve 3, drain pipe 4 and switching device 5, feed liquor valve 2 comprises valve body 21, inlet 22 and locking device, liquid valve 3 comprises fluid mouth 31, spool 32 and back-moving spring 33, switching device 5 can make the fluid mouth 31 in the liquid valve 3 cut out with spool 21 or open-minded, it is characterized in that described rifle body 1 adopts plastics to make, interlocking has three circulation passage 6 in the described rifle body 1, described three circulation passage 6 comprise first port 61, second port 62 and third connectivity mouth 63, described valve body 21 has at least part to be connected with described first port 61, described drain pipe 4 is connected with described second port 62, described spool 32 is connected with described switching device 5 through described third connectivity mouth 63 or overlaps mutually or be connected indirectly, fastness and intensity that drain pipe 4 and feed liquor valve 2 are connected with rifle body 1 have been improved, prevent and avoided occurring seepage foam gap filler phenomenon effectively, prevent and avoided rifle body interior foam gap filler appearance curing or clogging effectively, having solved the rifle body occurs slight crack or stream seam or micropore or distortion easily or breaks or leakage and causing can't be constructed or internal channel stops up defective, sealing stability when the raising drain pipe is connected with the rifle body with the feed liquor valve, safe and reliable, leak resistance is good, high-quality is provided, the foam gun that cost is low, processing is simple, light weight, easy to operate, long service life is fit to produce in enormous quantities.

Further, referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, valve body 21 has at least part to be connected by screw thread 65 with first port 61, drain pipe 4 is connected by screw thread 65` with second port 62, the fastness height, difficult drop-off more, also viscose glue is acquired in the joint between them, improves the fastness and the sealing of junction between them more.

Further, valve body 21 has at least part to connect hermetically mutually with first port 61, drain pipe 4 connects mutually hermetically with second port 62, valve body 21 adopts to add viscose glue or pass through sealing ring with the junction of first port 61 and connects hermetically mutually, drain pipe 4 adopts the interpolation viscose glue with the junction of second port 62 or seals mutually by sealing ring, prevent and avoided occurring seepage foam gap filler phenomenon more effectively, prevent and avoided rifle body interior foam gap filler appearance curing or clogging effectively, it is stable with fastness and sealing that the feed liquor valve is connected with the rifle body to have improved drain pipe, having solved the rifle body occurs slight crack or stream seam or micropore or distortion easily or breaks or leakage and causing can't be constructed or internal channel stops up defective, cost is low, the quality height, safe and reliable, leak resistance is good, long service life.

Referring to Fig. 1, between spool 32 and third connectivity mouth 63, seal mutually by sealing ring 34, prevent that effectively the seepage phenomenon from appearring in the joint between them, further, fixture 35 also is set on sealing ring 34, be used for fixing sealing ring 34.Referring to Fig. 1, fixture 35 has at least part to be arranged in the third connectivity mouth 63, is connected by the screw thread 65`` that is provided with on the third connectivity mouth 63.

Referring to Fig. 5 and Fig. 6, valve body 21 has at least the part and first port 61 to make the structure of one, more effectively prevents from and avoided the seepage phenomenon to occur between the valve body 21 and first port 61.

Drain pipe 4 is connected by screw thread 65` with second port 62, and further, drain pipe 4 connects mutually hermetically with second port 62, such as, drain pipe 4 adopts the interpolation viscose glue with the connection of second port 62 or seals mutually by sealing ring; Seal mutually by sealing ring 34 between spool 32 and the third connectivity mouth 63, fixture 35 is set on sealing ring 34, more effectively prevent the seepage phenomenon.The part that valve body 21 has at least adopts plastics or bakelite or metal material to make, and described plastics adopt polyethylene or polypropylene or polyformaldehyde material to be made for preferable selection, and more wear-resisting, intensity and fastness height also have self-lubricity, resistance to chemical attack, and leak resistance is better.Described metal material adopts aluminium or zinc or Cu alloy material to be made for preferable selection, intensity and fastness height, and leak resistance is better.

Preferred described three circulation passage 6 adopt plastics or glue art to make, referring to Fig. 2, Fig. 3 and Fig. 4, because plastics or bakelite three circulation passage 6 are made smaller volume, have reduced cost widely, have improved quality, adding man-hour, because volume is less, can make the density when being shaped reach very high, phenomenon such as avoided occurring slight crack or stream seam or micropore or distortion or break, improved the intensity and the fastness of junction, prevented effectively and avoided the foam gap filler in the rifle body seepage to occur or solidify phenomenon.

Further, especially plastic three-way passage 6 adopts polyformaldehyde material to make, and more wear-resisting, intensity and fastness height also have self-lubricity, resistance to chemical attack, and leak resistance is better.

Further, referring to Fig. 4, on first port 61 of three circulation passage 6 and the tube wall of second port 62 annular stiffening ring 64,64` are set, have improved the intensity of three circulation passage more, cost is low, and is easy to process, and leak resistance is better, is fit to produce in enormous quantities.

Referring to Fig. 1 and Fig. 2, plastics or bakelite three circulation passage 6 made of described interlocking in plastics rifle body 1 adopt plastics by the fusing of plastics machine and be infused in the mould that is embedded with three circulation passage 6 that the plastics that have part at least or bakelite make, make three circulation passage, 6 interlockings that plastics or bakelite the make all-in-one-piece structure that is connected in the plastics rifle body 1 of injection molded and with rifle body 1, drain pipe 4 more stably is connected with three circulation passage 6 with feed liquor valve 2, fastness and intensity height, leak resistance is good, having solved the rifle body occurs slight crack or stream seam or micropore or distortion easily or breaks or leakage and causing can't be constructed or internal channel stops up defective, cost is low, easy to process, rationally, product quality is better, long service life is more suitable for producing in enormous quantities.

Further, three circulation passage 6 that the employing polyformaldehyde of described interlocking in plastics rifle body 1 made adopt plastics by the fusing of plastics machine and be infused in the mould that is embedded with three circulation passage 6 that the polyformaldehyde that has part at least makes, and make three circulation passage, 6 interlockings that polyformaldehyde the makes all-in-one-piece structure that is connected in the plastics rifle body 1 of injection molded and with rifle body 1.

Preferred described three circulation passage 6 adopt metal material to make, intensity and fastness are higher, leak resistance is better, referring to Fig. 2, Fig. 3 and Fig. 4, because metal three circulation passage 6 are made smaller volume and are adopted metal material, reduced cost widely, improved quality, adding man-hour, because volume is less, can make the density when being shaped reach very high, phenomenon such as avoided occurring slight crack or stream seam or micropore or distortion or break, improved the intensity and the fastness of junction, prevented effectively and avoided the foam gap filler in the rifle body seepage to occur or solidify phenomenon.Further, metal three circulation passage 6 adopt aluminium or zinc or Cu alloy material to be made for preferable selection.

Referring to Fig. 1 and Fig. 2, three circulation passage 6 that the metal material of described interlocking in plastics rifle body 1 made adopt plastics by the fusing of plastics machine and be infused in and be embedded with in the mould that has three circulation passage 6 that the part metals material makes at least, make three circulation passage, 6 interlockings that metal material the makes all-in-one-piece structure that is connected in the plastics rifle body 1 of injection molded and with rifle body 1.Drain pipe 4 is connected with three circulation passage 6 with feed liquor valve 2, fastness and intensity height, leak resistance is good, having solved the rifle body occurs slight crack or stream seam or micropore or distortion easily or breaks or leakage and causing can't be constructed or internal channel stops up defective, cost is low, and easy to process, reasonable, product quality is better, long service life is more suitable for producing in enormous quantities.

Further, employing aluminium or zinc or copper three circulation passage 6 that become of described interlocking in plastics rifle body 1 adopt plastics by the fusing of plastics machine and be infused in the mould that is embedded with three circulation passage 6 that the aluminium that has part at least or zinc or copper becomes, and make three circulation passage, 6 interlockings that aluminium or zinc or copper the become all-in-one-piece structure that is connected in the plastics rifle body 1 of injection molded and with rifle body 1.

Referring to Fig. 3, third connectivity mouth 63 also can be made big than the third connectivity mouth among Fig. 2 63, and in this case, sealing ring 34 as shown in Figure 1 and fixture 35 can be installed in the plastics rifle body 1.

Also can be that locking device comprises closure member 23 and back-moving spring 24, back-moving spring 24 helps closure member 23 to seal mutually with inlet 22.

Also can be that rifle body 1 employing nylon or polyethylene or polypropylene or polyformaldehyde material are made, wear-resisting, the intensity height, resistance to chemical attack, foam gap filler also has self-lubricity, is difficult for being bonded on the housing 1, peels off easily or clears up or clean.

Referring to Fig. 1, when needs spray foam gap filler, the tank body that foam gap filler is housed is screwed on the screw thread that the valve body 21 of feed liquor valve 2 is provided with, inlet 22 on outlet on the tank body and the feed liquor valve 2 connects, at this moment, have the hyperbar foam gap filler and back down closure member 23 in the feed liquor valve 2 automatically, make self have anticyclonic foam gap filler through feed liquor valve 2 and three circulation passage 6 after, be transported in the fluid mouth 31 by drain pipe 4 very safely, at this moment, Drawing switch device 5, switching device 5 drives the spool 32 that stretches out and opens fluid mouth 31 from third connectivity mouth 63, thereby foam gap filler is discharged from fluid mouth 31 rapidly and safely, foam gap filler is bonded in needed place; When trip switch device 4, spool 32 seals fluid mouth 31 again by the screen resilience of back-moving spring 33.Between fluid mouth 31 and spool 32, sealing ring 34` can be set, improve the sealing effect of liquid valve 3.The afterbody of rifle body 1 can be provided with rifle body 1 by the adjuster 7 that screw thread is connected, be used to regulate foam gap filler and discharge the many of output 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, 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; but those of ordinary skill obviously can be recognized in the art; 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 (22)

1. foam gun, comprise the rifle body, the feed liquor valve, liquid valve, drain pipe and switching device, the feed liquor valve comprises valve body, inlet and locking device, liquid valve comprises the fluid mouth, spool and back-moving spring, switching device can make fluid mouth in the liquid valve and spool cut out or open-minded, it is characterized in that: described rifle body adopts plastics to make, interlocking has three circulation passage in the described rifle body, described three circulation passage comprise first port, second port and third connectivity mouth, described valve body has at least part to be connected with described first port, described drain pipe is connected with described second port, and described spool is connected with described switching device through described third connectivity mouth or overlaps mutually or be connected indirectly.

2. according to the described foam gun of claim 1, it is characterized in that described valve body has at least part to be connected by screw thread with described first port, described drain pipe is connected by screw thread with described second port.

3. according to the described foam gun of claim 1, it is characterized in that described valve body has at least part to connect hermetically mutually with described first port, described drain pipe connects mutually hermetically with described second port.

4. according to the described foam gun of claim 3, it is characterized in that described valve body has at least the part and the joint of described first port to adopt to add viscose glue or seals mutually by sealing ring, described drain pipe adopts the interpolation viscose glue with the joint of described second port or seals mutually by sealing ring.

5. according to the described foam gun of claim 1, it is characterized in that described valve body has at least part and described first port to make the structure of one.

6. according to the described foam gun of claim 5, it is characterized in that described drain pipe is connected by screw thread with described second port.

7. according to the described foam gun of claim 5, it is characterized in that described drain pipe connects mutually hermetically with described second port.

8. according to the described foam gun of claim 7, the connection that it is characterized in that described drain pipe and described second port is adopted and is added viscose glue or seal mutually by sealing ring.

9. according to the described foam gun of claim 1, it is characterized in that sealing mutually by at least one sealing ring between described spool and the described third connectivity mouth.

10. according to the described foam gun of claim 9, it is characterized in that on the described sealing ring fixture being set.

11., it is characterized in that described fixture has at least part to be arranged in the described third connectivity mouth according to the described foam gun of claim 10.

12., it is characterized in that described fixture has at least part to be connected by screw thread with described third connectivity mouth according to the described foam gun of claim 11.

13., it is characterized in that described three circulation passage adopt plastics or bakelite to make according to one of any described foam gun of claim 1 to 12.

14., it is characterized in that described plastic three-way passage adopts polyformaldehyde material to make according to the described foam gun of claim 13.

15., it is characterized in that on the tube wall of at least one port of described three circulation passage annular stiffening ring being set according to one of any described foam gun of claim 1 to 12.

16. according to the described foam gun of claim 13, it is characterized in that plastics or bakelite three circulation passage made of described interlocking in plastics rifle body adopt plastics by the fusing of plastics machine and be infused in the mould that is embedded with three circulation passage that the plastics that have part at least or bakelite make, make three circulation passage interlocking that plastics or bakelite the make all-in-one-piece structure that is connected in the plastics rifle body of injection molded and with the rifle body.

17. according to the described foam gun of claim 14, it is characterized in that three circulation passage that the employing polyformaldehyde of described interlocking in plastics rifle body make adopt plastics by the fusing of plastics machine and be infused in the mould that is embedded with three circulation passage that the polyformaldehyde that has part at least makes, make three circulation passage interlocking that polyformaldehyde the makes all-in-one-piece structure that is connected in the plastics rifle body of injection molded and with the rifle body.

18., it is characterized in that described three circulation passage adopt metal material to make according to one of any described foam gun of claim 1 to 12.

19., it is characterized in that described metal three circulation passage adopt aluminium or zinc or Cu alloy material to make according to the described foam gun of claim 18.

20. according to the described foam gun of claim 18, it is characterized in that three circulation passage that the metal material of described interlocking in plastics rifle body make adopt plastics by the fusing of plastics machine and be infused in and be embedded with in the mould that has three circulation passage that the part metals material makes at least, make three circulation passage interlocking that metal material the makes all-in-one-piece structure that is connected in the plastics rifle body of injection molded and with the rifle body.

21. according to the described foam gun of claim 19, it is characterized in that employing aluminium or zinc or copper three circulation passage that become of described interlocking in plastics rifle body adopt plastics by the fusing of plastics machine and be infused in the mould that is embedded with three circulation passage that the aluminium that has part at least or zinc or copper becomes, make three circulation passage interlocking that aluminium or zinc or copper the become all-in-one-piece structure that is connected in the plastics rifle body of injection molded and with the rifle body.

22., it is characterized in that described rifle body adopts nylon or polyethylene or polypropylene or polyformaldehyde material to make according to one of any described foam gun of claim 1 to 12.

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