CN102221206A

CN102221206A - Gas-heating air pressure gun

Info

Publication number: CN102221206A
Application number: CN2010101471333A
Authority: CN
Inventors: 林槐泰
Original assignee: Pro Iroda Industries Inc
Current assignee: Pro Iroda Industries Inc
Priority date: 2010-04-15
Filing date: 2010-04-15
Publication date: 2011-10-19

Abstract

The invention discloses a gas-heating air pressure gun, comprising a shell, a burner, an ejector and an air feeder, wherein a air collecting chamber, a heating chamber and a fire blocking part are arranged at the pipe part of the shell, the fire blocking part is arranged in front of the pipe part of the shell, the heating chamber is arranged between the fire blocking part and the air collecting chamber, the burner is arranged in the heating chamber and is provided with a first burning chamber, the ejector is arranged at the connecting port of the burner, is capable of ejecting burning gas and is provided with a suction port, and the air feeder is arranged in the air collecting chamber and can supply air to the suction port and air hole of the ejector.

Description

Gas hot air gun

Technical field

The present invention discloses a kind of gas hot air gun, refers to a kind of gas hot air gun of stablizing and reducing energy loss especially.

Background technology

With reference to annex, for the Japan Patent spy opens 2004-81693 patent case, wherein the portable heat gun is made up of air drain, burner, pressure fan, power supply and igniter.Air drain is deposited fuel, the gas of burner combustion air drain supply, the air that pressure fan heated burner is delivered to the port of export of shell, the motor of power drives pressure fan, igniter is lighted gas, and burner is provided with injector, can attract primary air because of the negative pressure generation, burn in the primary zone from the mist of wick ejection, supplying secondary air is given the gas of burning, and completing combustion in secondary combustion chamber.

Yet prior art still has many shortcomings, at first, pressure fan is located at the rear of shell, air can be delivered to the outlet of shell, but the air that pressure fan produces stream is not restricted, and air stream is except blowing to burner, and air stream also can scatter and be blown on the shell, cause the waste of the energy, increased many costs virtually.

Moreover, though heat gun by second-time burning with gas completing combustion in secondary combustion chamber, but can't guarantee that but gas can burnout in secondary combustion chamber,, still have the danger that jets out flames in the use so still have the possibility that jets out flames in the outlet of heat gun.

Moreover, burner is inner can to produce high temperature because of burning gases, the high temperature that produced of burning can conduct on the shell by the heat transmission, has possibility of burning shell when temperature is too high, and the high temperature outer surface that conducts to shell has scald user's possibility.For the problems referred to above, urgently await the necessity that improves.

Because the shortcoming of above-mentioned existing structure, the inventor invents out a kind of gas hot air gun, and it can overcome all shortcomings of above-mentioned existing structure.

Summary of the invention

The technical problem that institute of the present invention desire solves is to provide a kind of gas hot air gun at the above-mentioned shortcoming of prior art existence.

The technical scheme that gas hot air gun of the present invention is taked is: include: a housing, it has a pipe portion and a shank, this pipe portion establishes a wind assembling set, a heating clamber, the fiery portion of retaining, this keeps off the place ahead that fiery portion is positioned at this housing, this heating clamber keeps off between fiery portion and this wind assembling set at this, and this wind assembling set is communicated with this heating clamber; A burner, it is located at this heating clamber, and this burner has one first combustion chamber, is provided with an igniter plug in this first combustion chamber, and this burner is provided with a connector and several pores away from this end that keeps off fiery portion, and this pore is communicated in this first combustion chamber; An injector, it is located at this burner connector, and this injector can spray combustion gas, and this injector has a suction inlet, and this injector utilizes negative pressure to suck air by suction inlet to mix with burning gases and deliver to first combustion chamber; A pressure fan, it is located at this wind assembling set, and this pressure fan can supply air to suction inlet and this pore of this injector.

Main purpose of the present invention is, the airflow limitation that pressure fan produced is in wind assembling set, and effectively the air conductance that pressure fan is produced is to the heating clamber of protective cover, and stable air-supply can be provided and reduce the loss of energy.

Secondary objective of the present invention is that burner is located in the heating clamber of this protective cover, and protective cover is a metal material, has advantage heat-resisting and that be difficult for burning, so as to protecting housing not produce distortion because of being heated and burning.

Another purpose of the present invention is that the flame that comes out from burner can be subjected to iron net and the backstop of keeping off fiery portion, can prevent effectively that escape pipe from flame can not occur, avoids dangerous and takes place.

Another object of the present invention is that protective cover utilizes holder to be installed in the housing, and also is provided with adiabatic material between holder and the protective cover, to holder, further makes the outer surface of housing be unlikely too hot so as to the thermal energy transfer of isolated protective cover.

Other purpose, advantage and novel characteristics of the present invention will be more obvious from the following detailed description and related drawings.

Description of drawings

Fig. 1: be the stereo appearance figure of first embodiment of gas hot air gun of the present invention.

Fig. 2: be the three-dimensional exploded view of first embodiment housing of gas hot air gun of the present invention.

Fig. 3: be the three-dimensional exploded view of first embodiment part of gas hot air gun of the present invention.

Fig. 4: be the three-dimensional exploded view at local another visual angle of first embodiment of gas hot air gun of the present invention.

Fig. 5: be the generalized section of first embodiment of gas hot air gun of the present invention.

Fig. 6: be the work schematic diagram of first embodiment of gas hot air gun of the present invention.

Fig. 7: be the schematic diagram of second embodiment protective cover of gas hot air gun of the present invention.

Fig. 8: be the schematic diagram of the 3rd embodiment protective cover of gas hot air gun of the present invention.

Fig. 9: be the combination schematic diagram of the 3rd embodiment protective cover of gas hot air gun of the present invention.

The primary clustering symbol description:

10 housings, 101 pipe portions, 102 shanks, 11 wind-collecting covers

111 wind assembling set, 112 breach, 113 profile grooves, 12 protective covers

The fiery portion of 121 heating clamber 122 class's stoppers, 123 retainings 124 ventilating openings

125 iron nets, 13 battery pack, 14 escape pipes, 141 socket parts

142 outlets, 15 air drains, 151 air supply pipes, 152 control valves

16 control device, 161 control pieces, 162 piezoelectric elements, 1621 leads

163 switches, 17 holders, 171 adiabatic material 20 burners

21 first combustion chambers 211 protruding 2111 pores 212 ditch portions

2121 pores, 22 second combustion chambers, 23 blades, 24 igniter plugs

25 connectors, 30 injectors, 31 mixing chambers, 311 upper shields

34 convergence parts, 3111 suction inlet 32 wicks, 33 combination sections

40 pressure fan D gap 12a protective cover 123a keep off fiery portion

126a through hole 12b protective cover 123b keeps off fiery portion

The specific embodiment

Relevant the technology used in the present invention, means and effect thereof, lift now that three preferred embodiments and conjunction with figs. describe in detail as after, this only for the usefulness of explanation, is not subjected to the restriction of this kind structure in patent application.

Referring to figs. 1 through Fig. 4, be stereo appearance figure and the three-dimensional exploded view of first embodiment of gas hot air gun of the present invention.Gas hot air gun of the present invention includes a housing 10, burner 20, an injector 30 and a pressure fan 40.Wherein:

Simultaneously with reference to Fig. 5; this housing 10 is that two and half shell combination form; this housing has a pipe portion 101 and a shank 102; this pipe portion 101 laterally connects this shank 102; this pipe portion 101 has front end and rear end; and front end that should pipe portion 101 ejection hot blast; this pipe portion 101 is provided with a wind-collecting cover 11; protective cover 12 and a battery pack 13 and an escape pipe 14; this wind-collecting cover 11 is between this protective cover 12 and this battery pack 13; this protective cover 12 is positioned at the place ahead of this housing 10; this wind-collecting cover 11 is positioned at the rear of this protective cover 12; and has a clearance D between this wind-collecting cover 11 and this protective cover 12; this battery pack 13 is installed in the rear end of this housing 10, and this battery pack 13 is electrically connected this pressure fan 40.

This escape pipe 14 is provided with a socket part 141 and one and goes out 142, and this socket part 141 is positioned at an end of this escape pipe 14, and these socket part 141 sheathed these protective covers 12 are away from an end of this wind-collecting cover 11.

This shank 102 is provided with an air drain 15 and a control device 16, and this air drain 15 is equipped with the injector 30 that an air supply pipe 151 is connected to this pipe portion 101, and supply output burning gases are provided with a control valve 152 between this air supply pipe 151 and this air drain 15.This control device 16 includes a control piece 161, a piezoelectric elements 162 and a switch 163, this control piece 161 engages in the mode that gear is meshed with this control valve 152, and this control piece 161 protrudes in the side wall surface of this shank 102, for the flow of rotary manipulation control gas.This piezoelectric elements 162 is equipped with the burner 20 that a lead 1621 is connected to this pipe portion 101, and to produce high-tension electricity, this switch 163 is located at outside this housing 10, to control this piezoelectric elements 162.

This wind-collecting cover 11 is arranged in this housing 10, and this wind-collecting cover 11 has the wind assembling set 111 of an axial penetration.This protective cover 12 is metal and heat-resisting material, and this protective cover 12 has heating clamber 121 and class's stopper 122 of an axial penetration, and this class's stopper 122 is formed between these protective cover 12 two ends.Protective cover 12 in this pipe portion 101 is provided with a fiery portion 123 of retaining; this keeps off, and fiery portion 123 is located at this heating clamber 121 and this goes out between 142; this keeps off 123 pairs of centers that are positioned at this wind-collecting cover 11 of fiery portion, and this heating clamber 121 keeps off between fiery portion 123 and this wind assembling set 111 at this.This keeps off between fiery portion 123 and this protective cover 12 outer peripheral edges and is formed with four ventilating openings 124, and this ventilating opening 124 is communicated to this outlet 142, so that hot blast is sent in this outlet 142.

This protective cover 12 is fixed in this pipe portion 101 by a holder 17, and this protective cover 12 and this holder 17 combine with bolting away from the end that this keeps off fiery portion 123, and this holder 17 screw lock again is fixed in this pipe portion 101.Be provided with an adiabatic material 171 between this protective cover 12 and this holder 17, with the transmission of isolated heat.

Be provided with an iron net 125 in the protective cover 12, this burner 20 is located at by this iron net 125 and this keeps off between the fiery portion 123, to intercept flame.These wind-collecting cover 11 contiguous these ends that keep off fiery portion 123 are provided with several breach that are communicated with this wind assembling set 111 112 and a profile groove 113, and this profile groove 113 stretches through for this air supply pipe 151 and this lead 1621.

This burner 20 is located at the heating clamber 121 of this protective cover 12; and the outer rim block of this burner 20 is in this class's stopper 122; have one first combustion chamber 21 and one second combustion chamber 22 in this burner 20; first combustion chamber 21 keeps off fiery portion 123 away from this; these second combustion chamber, 22 contiguous these keep off fiery portion 123; the internal face of this first combustion chamber 21 is interval with several projectioies 211; this projection 211 extending axially along this burner 20; be separated by and be formed with a ditch portion 212 between two projectioies 211; this ditch portion 212 is provided with a pore 2121 the air of wind assembling set 111 is sent into first combustion chamber 21, and this projection 211 is provided with a pore 2111 the air of wind assembling set 111 is sent into second combustion chamber 22.These 22 these first combustion chambers 21 of next-door neighbour, second combustion chamber, this burner 20 is open shape in an end of this second combustion chamber 22.The outside of this burner 20 is provided with several blades 23, and this blade 23 contacts with outer gas stream, so that heat energy is taken away, reaches radiating effect.This burner 20 also is provided with an igniter plug 24, and these igniter plug 24 1 ends are located in this first combustion chamber 21, and another termination is established the lead 1621 of piezoelectric elements 162, pushes the switch 163 of this piezoelectric elements 162 and can light a fire to first combustion chamber 21.The end of this burner 20 in first combustion chamber 21 is provided with a connector 25.

This injector 30 is located at this connector 25, and this injector 30 includes a mixing chamber 31, wick 32, a combination section 33 and a convergence part 34.This mixing chamber 31 is connected with this wick 32, and this combination section 33 is between this mixing chamber 31 and this wick 32, and this combination section 33 is arranged in this connector 25, and this convergence part 34 is connected this air supply pipe 151, injects mixing chamber 31 so as to the burning gases that make this air drain 15.The outer ring surface of this mixing chamber 31 is a wire netting, and this mixing chamber 31 is socketed with a upper shield 311, and these upper shield 311 ends are sheathed on this combination section 33, and this upper shield 311 is provided with several suction inlets 3111, mixes with burning gases to suck air to this mixing chamber 31.This wick 32 is positioned at this first combustion chamber 21, and the outer ring surface of this wick 32 is wire netting, and wick 32 is communicated with this first combustion chamber 21, flows into first combustion chamber 21 so as to making burning gases and Air mixing gas by wick 32.

This pressure fan 40 is located at the wind assembling set 111 of this wind-collecting cover 11, and this pressure fan 40 is sent to this heating clamber 121 with air, air is sent into the outer peripheral edges of first combustion chamber 21, second combustion chamber 22 and burner 20 respectively.Air is sent into mixing chamber 31 by suction inlet 3111, sends into second combustion chamber 22 by pore 2111, flows through this blade 23 by these burner 20 outer surfaces.

With reference to Fig. 6, burning gases are by the filter in the convergence part 34, spray to mixing chamber 31 with transonic speed, mixing chamber 31 inside produce negative pressure because of spraying effect, required primary air is inhaled into mixing chamber 31 from suction inlet 3111 and is mixed into mist with burning gases when making burning, then spray to the wick 32 in the place ahead, then spray on every side from the wire netting mesh of wick 32 outer ring surfaces is past, piezoelectric elements 162 is pressed in operation, produce high-tension electricity, high-tension electricity is directed to igniter plug 24 from lead 1621 and produces spark, lights from the mist of wick 32 ejections, and flame is outside rounded diffusion from the side of wick 32.The air of wind assembling set 111 can import first combustion chamber 21 by the pore 2121 (with reference to Fig. 4) of this ditch portion 212, and the air of wind assembling set 111 can import second combustion chamber 22 by the pore 2111 of projection 211.At this moment, air can be imported first combustion chamber 21 and second combustion chamber 22 respectively by

pore

2111,2121, air imports first combustion chamber 21 and second combustion chamber 22 can be reacted in accelerated combustion, air adds the effectively accelerated combustion reaction of gas in the combustion process, make the easy completing combustion of burning gases, promote efficiency of combustion, the situation of avoiding incomplete combustion to cause burning gases to leak takes place.

Most unreacted fuel gas is known from experience burning in second combustion chamber 22, and this iron net 125 is located at this burner 20 and this keeps off between the fiery portion 123, make the flame that comes out from burner 20 can be subjected to iron net 125 and the backstop of keeping off fiery portion 123, can prevent effectively that escape pipe 14 from flame can not occur, avoid dangerous and take place.

This pressure fan 40 is located in the wind assembling set 111 of this wind-collecting cover 11, thus the airflow limitation that pressure fan 40 is produced in wind assembling set 111, effectively the air conductance that pressure fan 40 is produced avoids air stream to blow to unnecessary position to the heating clamber 121 of protective cover 12.When air blows to protective cover 12; diminish because the stream of air is long-pending; can quicken the flow velocity of air; but also can cause the adverse current of air simultaneously; conflict mutually with the air of following current; at this moment, inconsistent air can shed by the clearance D of 12 of this wind-collecting cover 11 and this protective covers, and then does not influence by wind assembling set 111 and flow toward the air of heating clambers 121.

This burner 20 is located in the heating clamber 121 of this protective cover 12, and this protective cover 12 is a metal material, has advantage heat-resisting and that be difficult for burning, so as to protecting housing 10 not produce distortion because of being heated and burning.This protective cover 12 utilizes holder 17 to be installed in this housing 10; and also be provided with this thermal insulation material 171 between this holder 17 and this protective cover 12; this thermal insulation material 171 is a pottery magnetic cotton, to holder 17, further makes the outer surface of housing 10 be unlikely too hot so as to the thermal energy transfer of isolated protective cover 12.

With reference to Fig. 7, be the stereo appearance figure of second embodiment protective cover of gas hot air gun of the present invention.Present embodiment is identical with aforementioned first embodiment substantially; its difference is that this keeps off between the fiery 123a of portion and this protective cover 12a outer peripheral edges and is densely covered with several through holes 126a; this through hole 126a is communicated to outside (asking for an interview Fig. 1), utilizes the through hole 126a that gathers can more effectively avoid the ejection of flame.

With reference to Fig. 8 and Fig. 9, be the stereo appearance figure and the three-dimensional exploded view of the 3rd embodiment protective cover of the present invention's watt phase heat gun.Present embodiment is identical with aforementioned first embodiment substantially, and its difference is that this keeps off the fiery 123b of portion and this protective cover 12b is not an one, keeps off the front end that the fiery 123b of portion is installed in this protective cover 12b.

Can summarize the present invention with regard to the above and have following advantage:

1. gas hot air gun of the present invention; wherein the airflow limitation that pressure fan produced is in wind assembling set; effectively the air conductance that pressure fan is produced is to the heating clamber of protective cover, guaranteeing that the burning gases in the heating clamber can completing combustion, so as to providing stable and reducing the loss of energy.

2. gas hot air gun of the present invention, wherein burner is located in the heating clamber of this protective cover, and protective cover is a metal material, has advantage heat-resisting and that be difficult for burning, so as to protecting housing not produce distortion because of being heated and burning.

3. gas hot air gun of the present invention, wherein the flame that comes out from burner can be subjected to iron net and the backstop of keeping off fiery portion, can prevent effectively that escape pipe from flame can not occur, avoids dangerous and takes place.

4. gas hot air gun of the present invention, wherein protective cover utilizes holder to be installed in the housing, and also is provided with adiabatic material between holder and the protective cover, to holder, further makes the outer surface of housing be unlikely too hot so as to the thermal energy transfer of isolated protective cover.

The above person of thought; only be preferred embodiment of the present invention, when can not with the qualification the scope of protection of the invention, so the displacement of the change of numerical value or equivalent elements such as; or, all should still belong to the category that patent of the present invention contains according to equalization variation and modification that claim of the present invention is done.

Claims

1. gas hot air gun, its feature includes:

A housing, it has a pipe portion and a shank, and this pipe portion establishes a wind assembling set, a heating clamber, the fiery portion of retaining, and this keeps off the place ahead that fiery portion is positioned at this housing, this heating clamber keeps off between fiery portion and this wind assembling set at this, and this wind assembling set is communicated with this heating clamber;

A burner, it is located at this heating clamber, and this burner has one first combustion chamber, is provided with an igniter plug in this first combustion chamber, this burner is provided with a connector and several pores away from this end that keeps off fiery portion, and this pore is communicated in this first combustion chamber;

An injector, it is located at this burner connector, and this injector can spray combustion gas, and this injector has a suction inlet, and this injector utilizes negative pressure to suck air by suction inlet to mix with burning gases and deliver to first combustion chamber;

A pressure fan, it is located at this wind assembling set, and this pressure fan can supply air to suction inlet and this several pores of this injector.

2. gas hot air gun as claimed in claim 1 is characterized in that, is provided with a wind-collecting cover in this pipe portion, forms this wind assembling set in this wind-collecting cover, and this wind assembling set is close to the sectional area of the sectional area of this end that keeps off fiery portion less than an end that keeps off fiery portion away from this.

3. gas hot air gun as claimed in claim 1 is characterized in that, more is provided with a protective cover in this pipe portion, and this protective cover is located on this housing, forms this heating clamber in this protective cover.

4. gas hot air gun as claimed in claim 3 is characterized in that, this keeps off between fiery portion and this protective cover outer peripheral edges and is formed with four ventilating openings, and this ventilating opening is communicated in the outside.

5. gas hot air gun as claimed in claim 3 is characterized in that, this keeps off between fiery portion and this protective cover outer peripheral edges and is densely covered with several through holes, and this through hole is communicated to this outside.

6. gas hot air gun as claimed in claim 3 is characterized in that, this keeps off fiery portion and this protective cover is not an one, keeps off the front end that fiery portion is installed in this protective cover.

7. gas hot air gun as claimed in claim 3; it is characterized in that; this protective cover is a metal material; this protective cover is fixed in this pipe portion by a holder; this protective cover and this holder combine together away from the end that this keeps off fiery portion; be provided with an adiabatic material between this protective cover and this holder, be provided with an iron net in the protective cover, this burner is located at by this iron net and this keeps off between the fiery portion.

8. gas hot air gun as claimed in claim 1, it is characterized in that, this shank is provided with an air drain and a control device, this air drain is equipped with an air supply pipe and is connected to this injector, be provided with a control valve between this air supply pipe and this air drain, this control device includes a control piece, a piezoelectric elements and a switch, this control piece engages in the mode that gear is meshed with this control valve, and this control piece protrudes in the side wall surface of this shank, this piezoelectric elements is equipped with the igniter plug that a lead is connected to this burner, this switch is located at outside this housing, to control this piezoelectric elements.

9. gas hot air gun as claimed in claim 3, it is characterized in that, this burner has more one second combustion chamber, this first combustion chamber keeps off fiery portion away from this, contiguous this in this second combustion chamber keeps off fiery portion, the internal face of this first combustion chamber is interval with several projectioies, this projection extends axially along this burner, be separated by and be formed with a ditch portion between two projectioies, this ditch portion is provided with this pore the air of this wind assembling set is sent into this first combustion chamber, this projection respectively is provided with a pore the air of this wind assembling set is sent into this second combustion chamber, and the outside of this burner is provided with several blades, has a gap between this wind assembling set and this heating clamber.

10. gas hot air gun as claimed in claim 1, it is characterized in that, this injector includes a mixing chamber, a wick, a combination section and a convergence part, this mixing chamber is connected with this wick, this combination part is between this mixing chamber and this wick, this combination section is arranged in this connector, these convergence part supply burning gases are to this mixing chamber, the outer ring surface of this mixing chamber and this wick is a wire netting, this wick communicates with this first combustion chamber, this mixing chamber is socketed with a upper shield, and this upper shield end is sheathed on this combination section, and this cover is covered with this suction inlet.