CN2930878Y - Foaming means with metal connecting member - Google Patents

Abstract

The utility model relates to a foaming tool with metallic connection which comprises an external connection, a fluid input valve, a fluid output valve, a shell and a switchgear which can turn on or off the fluid output valve. The utility model is characterized in that the metallic connection is arranged in the housing, the metallic connection is hollow, the fluid input valve and fluid output valve are arranged on the metallic connection respectively and are joined with the metallic connection hermetically, at least parts of the metallic linkers are connected to the fluid input valve extend out the housing and is incorporated with the external connection; the housing is plastic. The liquid leakage is avoided effectively and the problem of the blocking in foaming gun channels is solved. The utility has a high production yield and is low-cost, easy-manufacturing and suitable for mass production.

Description

A kind of foam tool that has metal connecting piece

Technical field

The utility model relates to the foam tool that is used for the spray foam filler.

Background technology

About the door in the house, the window water-impervious is installed or the slit is filled up, the insulation that air-conditioning is installed, application of anti-leakage layers, fill in the surplus hole that various pipelines are installed, combined socket and switch and the relevant installation that needs insulation etc., generally all adopting foam filling agent is raw material, during use, by foam tool foam filling agent is quantitatively discharged and reach installation, joint filling, mending-leakage, insulation, insulation or purpose such as bonding, foam filling agent generally is for having the liquid state of air pressure in the cavity of foam tool, when opening the fluid mouth by the switching device in the foam tool, the foam filling agent that ejects is cured and is bonded in needed place.

Foam tool on the existing market generally is divided into two kinds of metal species and plastics classes, the metal species foam tool mainly is that large-area housing adopts metal material to make, liquid valve, feed liquor valve and switching device are installed on the housing, on housing, formed and made liquid valve, feed liquor valve and switching device be UNICOM and mobilizable structure mutually, but, often this mutual UNICOM and mobilizable structure are because seal request is very high, often be easy to occur the phenomenon of leakage, the foam filling agent of leakage in foam tool outside is bonded at accidentally on hand or is difficult to clean on the clothes or on the article time, and have inflammable gases at high pressure and spill the danger that can cause burning or blast, in addition, also cause foam filling agent in the rifle body, to be cured and cause the obstruction of foam tool internal channel, this is because because the area of housing is too big and the complexity of structure, 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 of molecular crystalline after processing (casting or die casting) moulding not enough, cause large tracts of land or local pore (micropore) and cause the phenomenon of leakage; Large-area housing adopts plastics to make in the plastics class foam tool, be easier to produce, cost is low, but, the insufficient strength of itself, when liquid valve or feed liquor valve are installed on the plastic casing, if it is firmly big slightly, be easy to cause breaking of the place of being tightly connected and the phenomenon of leakage occurs,, have anticyclonic foam filling agent to be easy to from being tightly connected leak out if firmly slightly little, cause the defect rate of foam tool very high, if run under the situation that bigger variation takes place weather, the variation that plastic casing is expanded with heat and contract with cold is easy to make the place of being tightly connected of mutual close-fitting to become flexible or breaks and the phenomenon of leakage occurs.

Summary of the invention

The purpose of this utility model is to propose a kind of foam tool that prevents effectively and avoided the phenomenon of leakage at the defective of above-mentioned prior art existence.

Another purpose of the present utility model is to have improved the intensity at the place that is tightly connected, the easy obstruction that has solved the foam tool internal channel, and the yield rate height has prolonged service life of foam tool, and cost is low, and processing is simple, is fit to produce in enormous quantities.

In order to realize the foregoing invention purpose, the utility model adopts following technical scheme: it comprises external piece, the feed liquor valve, liquid valve, switching device and housing, switching device can make liquid valve cut out or open-minded, it is characterized in that: in described housing, metal connecting piece is set, described metal connecting piece is hollow structure, described feed liquor valve and liquid valve are installed on the described metal connecting piece separately, and be connected hermetically mutually with described metal connecting piece, the described part metals connector that has at least that is connected with the feed liquor valve stretches out described housing, and make the structure of one with described external piece, be used for the external better tank body that foam filling agent is housed, improved the intensity at the place that respectively is tightly connected, prevent the phenomenon of leakage, solved the easy obstruction of passage; Comprise that also described housing adopts plastics to make, reduced cost, and make processing more simple, reasonable.

On described external piece, helical form is set, is convenient to be connected with the tank body that foam filling agent is housed or separate.

Described metal connecting piece is that kirsite or aluminium alloy or copper alloy or ferroalloy are made for preferable selection.

Described feed liquor valve comprises liquid inlet port, closure member and back-moving spring; Described liquid valve comprises fluid mouth, spool and second back-moving spring.

Described metal connecting piece has three ports, described first port is connected with the feed liquor valve, and be connected hermetically mutually, described second port is connected with the fluid mouth, and be connected hermetically mutually, described spool has at least part to stretch out described third connectivity mouth, and seals mutually by sealing ring between them.

Its beneficial effect, the utility model adopt above-mentioned measure, have improved the intensity that foam tool is tightly connected and locates, prevent and avoided the phenomenon of leakage effectively, solved the easy obstruction of passage, the yield rate height, cost is low, and processing is simple, reasonable, is fit to produce in enormous quantities.

Description of drawings

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

Structure cross-sectional schematic when Fig. 2 is the connector independence of metal among Fig. 1.

The specific embodiment

Among the figure:

1---external piece 2---feed liquor valve 21---liquid inlet port 22---closure member 23---back-moving spring 3---liquid valve 31---fluid mouth 32---spool 33---second back-moving spring 34, the 34`---sealing ring 35---fixture 4---switching device 5---housing 6---connector 61 of metal---first port 62---second port 63---third connectivity mouth 7---adjuster

A kind of foam tool that has metal connecting piece of the utility model, it comprises: external piece 1, be used for the external tank body that foam filling agent is housed, feed liquor valve 2, be used to open or close foam filling agent, liquid valve 3, be used to close or discharge foam filling agent, switching device 4, be used to control closing or opening of liquid valve 3, with housing 5, the connector 6 that adopts metal material to make is set in described housing 5, and metal connecting piece 6 is hollow structure, and feed liquor valve 2 and liquid valve 3 are installed on the connector 6 of metal separately, and be connected with described metal connecting piece 6 and be connected hermetically mutually, being provided with of metal connecting piece improved the intensity at the place that is tightly connected, and the part metals connector 6 that has at least that is connected with feed liquor valve 2 stretches out housing 5, and makes the structure of one with external piece 1, prevent and avoided the phenomenon of leakage effectively, solved the easy obstruction of internal channel; Comprise that also described housing 5 adopts plastics to make, the yield rate height, cost is low, and is easy to process, is fit to produce in enormous quantities.

Referring to Fig. 1 and Fig. 2, the connector 6 that adopts metal material to make, such as: adopt kirsite or aluminium alloy or copper alloy or ferroalloy materials etc. to be made for preferable selection, feed liquor valve 2 and liquid valve 3 can join by spiral and (affixed) be installed on metal connecting piece 6, external piece 1 and metal connecting piece 6 are made the structure of one, replaced by housing 5 and directly connected feed liquor valve 2, the structure of liquid valve 3 and external piece 1, referring to Fig. 2, because the connector 6 of metal can be made smaller volume, has reduced cost widely, is adding man-hour, because volume is less, it is very high that density in the time of can making moulding reaches, and that is to say and eliminated pore, therefore, leakage and passage clogging have been avoided occurring, easy for installation, improved yield rate, in addition, metal connecting piece 6 and external piece 1 are made the structure of one, that has avoided also that common employing spiral joins is cumbersome, simplifies the structure, and reduces cost again.Referring to Fig. 2, on external piece 1, helical form is set, be convenient to be connected with the tank body that foam filling agent is housed, the structure of three side through holes is set below spiral helicine in external piece 1, the structure of four side through holes also can be set, be convenient to cleaning.

Feed liquor valve 2 can comprise liquid inlet port 21, closure member 22 and back-moving spring 23, and back-moving spring 23 acts on the closure member 22, and feed liquor valve 2 cuts out when off working state automatically.Liquid valve 3 can comprise fluid mouth 31, spool 32 and second back-moving spring 33.

Referring to Fig. 1 and Fig. 2, the connector 6 of metal has three ports, and it comprises first port 61, second port 62 and third connectivity mouth 63.First port 61 can adopt the helical form side to spin mutually hermetically mutually with feed liquor valve 2, and can add sticking cream between them, makes sealing effectiveness better; Second port 62 adopts the helical form side to spin mutually hermetically mutually with long cylinder-shaped fluid mouth 31, can add sticking cream between them, makes sealing effectiveness better; Spool 32 has at least part to stretch out third connectivity mouth 63, and seals mutually by sealing ring 34 between them.The part spool 32 that stretches out third connectivity mouth 63 is connected with switching device 4 or overlaps, and is convenient to moving of switching device 4 control spools 32.Fixture 35 is set on sealing ring 34, prevents that sealing ring 34 from coming off.

Metal connecting piece 6 its processing preferred version that are arranged on housing 5 hollow cores are at first metal connecting piece 6 to be embedded in the mould of plastics of housing 5, be expelled in the mould by the plastics in the plastics machine then, the structure that plastics housing of making 5 and the metal connecting piece of inlaying 6 are fused, the connector 6 of having guaranteed metal the phenomenon of leakage can not occur, and cost is low, easy to process, good product quality.

Referring to Fig. 1, when needs spray foam filler, the tank body that foam filling agent is housed is screwed in has in the foam tool on the spiral helicine external piece 1, liquid inlet port 21 on liquid outlet on the tank body and the feed liquor valve 2 connects, at this moment, have the hyperbar foam filling agent and back down the closure member 22 of spring 23 effects that are reset in the feed liquor valve 2 automatically, after making first port 61 that self has anticyclonic foam filling agent process feed liquor valve 2 and metal connecting piece 6, changing second port 62 very safely over to is transported in the liquid valve 3, at this moment, Drawing switch device 4, switching device 4 drives the part spool 32 that stretches out and opens fluid mouth 31 from third connectivity mouth 63, thereby foam filling agent is discharged from fluid mouth 31 rapidly and safely, foam filling agent is coated in needed place.When trip switch device 4, spool 32 seals fluid mouth 31 again by the screen resilience of second back-moving spring 33.Referring to Fig. 1, between fluid mouth 31 and spool 32, sealing ring 34` can be set, improved the sealing effect of liquid valve 3., be used to regulate foam filling agent and discharge the many of output or few by the adjuster 7 that spiral is connected at the afterbody setting of foam tool and housing 5.

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 (5)

1, a kind of foam tool that has metal connecting piece, it comprises external piece, feed liquor valve, liquid valve, switching device and housing, switching device can make liquid valve cut out or open-minded, it is characterized in that: in described housing, metal connecting piece is set, described metal connecting piece is hollow structure, described feed liquor valve and liquid valve are installed on the described metal connecting piece separately, and be connected hermetically mutually with described metal connecting piece, the described part metals connector that has at least that is connected with the feed liquor valve stretches out described housing, and makes the structure of one with described external piece; Comprise that also described housing adopts plastics to make.

2, according to the described a kind of foam tool that has metal connecting piece of claim 1, it is characterized in that: on described external piece, helical form is set.

3, according to the described a kind of foam tool that has metal connecting piece of claim 1, it is characterized in that: described metal connecting piece is that kirsite or aluminium alloy or copper alloy or ferroalloy are made.

4, according to the described a kind of foam tool that has metal connecting piece of claim 1, it is characterized in that: described feed liquor valve comprises liquid inlet port, closure member and back-moving spring; Described liquid valve comprises fluid mouth, spool and second back-moving spring.

5, according to the described a kind of foam tool that has metal connecting piece of claim 4, it is characterized in that: described metal connecting piece has three ports, described first port is connected with the feed liquor valve, and be connected hermetically mutually, described second port is connected with the fluid mouth, and be connected hermetically mutually, described spool has at least part to stretch out described third connectivity mouth, and seals mutually by sealing ring between them.

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