CN204122329U - Foam gun - Google Patents

Abstract

The utility model relates to foam gun, comprise rifle body, liquid feed valve, liquid outlet, minute hand, back-moving spring, regulating part and switch, it is characterized in that: described regulating part is connected by connector with described rifle body, described regulating part is connected by screw thread rotationally with described connector, described regulating part has part to match movably with the inwall of described connector, in the described regulating part matched movably with described inwall, cross-drilled hole is set, the inwall of the corresponding described connector of opening of described cross-drilled hole, resistance piece is set in described cross-drilled hole and acts on the spring on described resistance piece, described resistance piece contacts with the inwall of described connector, this structure had regulated not only easily but also safety, regulating part is prevented to occur rotation phenomenon, efficiently avoid the foam gun occurring leakage or unexpected jet phenomenon.

Description

Foam gun

Technical field

The utility model relates to the instrument of building construction decoration, is a kind of foam gun of frothing foam gap filler.

Background technology

Building and house in door, window, body of wall, mixed earth, air-conditioning is installed, various Pipe installing, ventilating opening and electric line outlets etc. need the place of joint filling (caulking joint) or mending-leakage, generally special material is all adopted to be raw material with anticyclonic foam gap filler, during use, by foam gun, foam gap filler quantitatively discharged and foam, reach the object such as joint filling or mending-leakage, the injection of foam gap filler leans on the pressure self produced to reach injection, such as: foam gap filler can adopt polyurethane and butane gas to be mixed into primary raw material, there is high viscosity, also other chemical raw material can be adopted, foam gap filler is easy to leak or spray, once ingress of air will solidify immediately, so high-seal be contained in tank body, equally, when this tank body is arranged on foam gun, to the safety coefficient of foam gun and seal request also quite high.When running into bait when using after tank body being housed on the liquid feed valve of foam gun or also leave foam gap filler in complete tank body of constructing, or when use post-foaming rifle go out in sap cavity also to leave over foam gap filler time, must regulating part be rotated and fix minute hand, make switch not stretchy minute hand, minute hand is enable to tightly suppress liquid outlet, prevent unintentionally or child's Drawing switch and occurring leak or unexpected to spray or the danger of burning or blast, because spring is fixed by regulating part, the power of spring all acts on regulating part, regulating part has again the effect of above-mentioned several respects, like this, very many-sided defect can be caused, such as: if less elastic force made by spring, although rotate easily, but spring is large not to the active force of minute hand, be easy to cause the sealing of minute hand and liquid valve thoroughly not occur leakage or burning or explosion phenomenon, also easily make the foam gap filler in foam gun there will be at any time to solidify and blocking channel, foam gun is caused to scrap.If larger elastic force made by spring, minute hand is closely sealed mutually with liquid valve, like this, regulating part rotation is made to become very heavy because regulating part acts directly on spring, use gruelling or very difficult adjustment, if the threaded engagement between regulating part and rifle body is slightly tight slightly, be difficult to especially regulate, be difficult to locking minute hand, adjustment in use part is often abandoned after construction, to be unwilling in other words adjustment in use part, user is caused regulating part and minute hand not to be locked, the foam gap filler in foam gun is easily made to occur at any time solidifying and blocking channel, also be easy to make unintentionally or child's Drawing switch and occur leaking or unexpected danger of spraying.

Also a kind of structure is had, comprise rifle body, gun barrel, Compress Spring, shank, spanner, this adjusting device is located on the rifle body of foam gun, comprise the set screw that is stretched out the external side of rifle, it is characterized in that described Compress Spring is socketed on shank, and be positioned at gun barrel, one end acts on shank, the other end acts on rifle body, one end of shank is stretched out the outside of rifle body and is connected on spanner, a sliding cavity is axially provided with along shank on described rifle body, a slidably adjusting screw(rod) is provided with in sliding cavity, the threaded one end of this adjusting screw(rod) is connected in set screw, the other end is circumferential relative to sliding cavity fixing, set screw can be rotated, and relative to rifle body axial restraint, the set screw of this structure is that original position is rotated, the adjusting screw(rod) be threaded with set screw is driven by rotating set screw, adjusting screw(rod) can produce axial displacement in sliding cavity, this solves the shortcoming that above-mentioned adjustment is heavy, but it is too too light because regulating, occur regulating unstable and using uneasy congruent problem, the adjusting screw(rod) of this structure and the cooperation of set screw are in movable and free state, make adjusting screw(rod) easily produce displacement, cause regulating inaccurate or regulating malfunctioning, there is the defect that modification stability is low and security is low because easy activity and rotation are light, when after adjusting screw(rod) locking minute hand, if with hand repeatedly Drawing switch time, the power repeated action of switch, on adjusting screw(rod), easily causes adjusting screw(rod) to loosen and produces displacement and unlocking, the stability of this structure latches is low, easily occurs leaking or unexpected jet phenomenon, because adjusting screw(rod) is be in activity and free state completely with coordinating of set screw, is easily collided or wiped and set screw produced rotate, easily remove adjusting screw(rod) locking minute hand, being made child or Drawing switch and occur the danger of leaking or spraying unintentionally.

Summary of the invention

The purpose of this utility model is the deficiency overcoming above-mentioned prior art, provides a kind of and has regulated not only easily but also safety, prevent regulating part to occur rotation phenomenon, efficiently avoid and occurs leaking or the foam gun of unexpected jet phenomenon.

The purpose of this utility model is such realization: comprise rifle body, liquid feed valve, liquid outlet, minute hand, back-moving spring, regulating part and switch, it is characterized in that: described regulating part is connected by connector with described rifle body, described regulating part is connected by screw thread rotationally with described connector, described regulating part has part to match movably with the inwall of described connector, in the described regulating part matched movably with described inwall, cross-drilled hole is set, the inwall of the corresponding described connector of opening of described cross-drilled hole, resistance piece is set in described cross-drilled hole and acts on the spring on described resistance piece, described resistance piece contacts with the inwall of described connector.

Further, described back-moving spring one end acts on described minute hand, and the other end acts on described connector.

Further, described resistance piece is ball.

Further, the inwall of described connector is longitudinal annular gear-like.

The beneficial effects of the utility model had regulated not only easily but also safety for providing a kind of, prevented regulating part to occur rotation phenomenon, efficiently avoid and occurred leaking or the foam gun of unexpected jet phenomenon.

Accompanying drawing explanation

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

Structure cross-sectional schematic when Fig. 2 is Fig. 1 regulating part locking minute hand.

In figure:

1---rifle body 10-connector 11---gun barrel 12---sealing ring 13---holder 14---handle 15---screw 2---liquid feed valve 21---liquid inlet port 22---closure member 23---second back-moving spring 24---second holder 25---second sealing ring 31---liquid outlet 32---minute hand 33---back-moving spring 34---goes out sap cavity 35---locating part 36---spring base 4---regulating part 41---cross-drilled hole 42----resistance piece 43---spring 44---fixed screw 5---switch

Detailed description of the invention

See whole accompanying drawing, a kind of foam gun, comprise rifle body 1, liquid feed valve 2, liquid outlet 31, minute hand 32, back-moving spring 33, regulating part 4 and switch 5, it is characterized in that: described regulating part 4 is connected by connector 10 with described rifle body 1, described regulating part 4 is connected by screw thread rotationally with described connector 10, described regulating part 4 has part to match movably with the inwall of described connector 10, in the described regulating part 4 matched movably with described inwall, cross-drilled hole 41 is set, the inwall of the corresponding described connector 10 of opening of described cross-drilled hole 41, the spring 43 resistance piece 42 being set in described cross-drilled hole 41 and acting on described resistance piece 42, described resistance piece 42 contacts with the inwall of described connector 10, further, described back-moving spring 33 one end acts on described minute hand 32, the other end acts on described connector 10, further again, described resistance piece 42 is ball, further again, the inwall of described connector 10 is longitudinal annular gear-like, a kind of adjustment not only easily but also safety, regulating part is prevented to occur rotation phenomenon, efficiently avoid the foam gun occurring leakage or unexpected jet phenomenon.

See Fig. 1 and Fig. 2, a kind of embodiment of foam gun, comprise rifle body 1, liquid feed valve 2, liquid outlet 31, minute hand 32, back-moving spring 33, regulating part 4 and switch 5, described regulating part 4 is connected by connector 10 with described rifle body 1, described regulating part 4 is connected by screw thread rotationally with described connector 10, described regulating part 4 has part to match movably with the inwall of described connector 10, in the described regulating part 4 matched movably with described inwall, cross-drilled hole 41 is set, the inwall of the corresponding described connector 10 of opening of described cross-drilled hole 41, the spring 43 resistance piece 42 being set in described cross-drilled hole 41 and acting on described resistance piece 42, described resistance piece 42 contacts with the inwall of described connector 10 and produces friction, a kind of adjustment not only easily but also safety, regulating part is prevented to occur rotation phenomenon, efficiently avoid the foam gun occurring leakage or unexpected jet phenomenon.

Further, described back-moving spring 33 one end acts on described minute hand 32, and the other end acts on described connector 10, makes described regulating part 4 avoid the effect of external force, makes adjustment light.

Further, described resistance piece 42 is ball, and easy to process, cost is low.

Further, the inwall of described connector 10 is longitudinal annular gear-like, make to produce impede motion between two contact surfaces, improve frictional force when resistance piece 42 contacts with the inwall of connector 10, prevent regulating part to occur rotation phenomenon, efficiently avoid and occur leaking or unexpected jet phenomenon.

See Fig. 1, when rotating regulating part 4, regulating part 4 produces telescopic moving, user is felt regulating part 4 is moved to the required position being used for controlling flow, the adjustment of this structure is not only light but also stable and safe and reliable, good hand touch, easy assurance adjustment situation, do not think light during rotation, easy to adjust, accurately, improve construction quality and avoid foam gap filler to occur wasting phenomenon, when needs lock, see Fig. 2, rotate regulating part 4, regulating part 4 and locating part 35 and minute hand 32 are locked with feeling when rotated, due to the effect of spring 43, resistance piece 42 is made to contact with the inwall of described connector 10 and produce top power, improve friction and engaging power, efficiently avoid regulating part 4 and occur free activity phenomenon, also efficiently avoid and collided or wipe and easily cause regulating part 4 to produce rotation phenomenon, thus make regulating part 4 stably pin locating part 35 and minute hand 32, the stability that improve locking is high, avoid child or Drawing switch 5 and the danger causing foam gap filler to spray unintentionally, effectively prevent leakage or unexpected jet phenomenon.Fixed screw 44 is set at the inner end of regulating part 4, when preventing regulating part 4 and described connector 10 from rotating, occurs obscission.

The inwall of especially described connector 10 is longitudinal annular gear-like, make to produce impede motion between two contact surfaces, improve frictional force when resistance piece 42 contacts with the inwall of connector 10, prevent regulating part 4 to occur rotation phenomenon, efficiently avoid and occur leaking or unexpected jet phenomenon.

See Fig. 1, liquid feed valve 2 can comprise liquid inlet port 21, closure member 22, second back-moving spring 23 and be used for fixing the second holder 24 of the second back-moving spring 23, second sealing ring 25 can also be set between described rifle body 1 and described liquid feed valve 2, prevent the phenomenon of leakage.Foam gun can also comprise gun barrel 11 and handle 14, and handle 14 is connected with rifle body 1 by screw 15.Gun barrel 11 is connected with rifle body 1 and forms out sap cavity 34; minute hand 32 stretches out between sap cavity 34 with rifle body 1 and seals by sealing ring 12 phase; improve sealing property; holder 13 can also be set on sealing ring 12; protection and fixed seal ring 12; improve sealing effectiveness, sealing ring 12 can adopt rubber or plastics to make.The one end going out sap cavity 34 described in described minute hand 32 stretches out connects a locating part 35 through described switch 5, locating part 35 can overlap and have spring base 36, one end of back-moving spring 33 is socketed on spring base 36, the other end of back-moving spring 33 acts on described connector 10, efficiently avoid common action of reset spring on regulating part, brings the phenomenon rotating and weigh.Described locating part 35 can be connected by screw thread with described minute hand 32, when pulling described switch 5, described locating part 35 drives minute hand 32 to move, thus the foam gap filler in external foam gap filler pot is entered in foam gun smoothly spray, rational in infrastructure, simple, cost is low, is applicable to producing in enormous quantities.

Claims (4)

1. a foam gun, comprise rifle body, liquid feed valve, liquid outlet, minute hand, back-moving spring, regulating part and switch, it is characterized in that: described regulating part is connected by connector with described rifle body, described regulating part is connected by screw thread rotationally with described connector, described regulating part has part to match movably with the inwall of described connector, in the described regulating part matched movably with described inwall, cross-drilled hole is set, the inwall of the corresponding described connector of opening of described cross-drilled hole, resistance piece is set in described cross-drilled hole and acts on the spring on described resistance piece, described resistance piece contacts with the inwall of described connector.

2. foam gun according to claim 1, it is characterized in that described back-moving spring one end acts on described minute hand, the other end acts on described connector.

3. foam gun according to claim 1, is characterized in that described resistance piece is ball.

4. foam gun according to claim 1, is characterized in that the inwall of described connector is for longitudinal annular gear-like.