CN2427289Y

CN2427289Y - Safety device for preventing high temp. injury caused by outlet of hot blast gun

Info

Publication number: CN2427289Y
Application number: CN 00238487
Authority: CN
Inventors: 郑传兴
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-06-28
Filing date: 2000-06-28
Publication date: 2001-04-25
Anticipated expiration: 2010-06-28

Abstract

The utility model relates to a heat gun, overcoming the high-temperature harm of the heat gun. A safety device used for preventing high-temperature injury caused by an outlet of the heat gun comprises a sleeve tube and a jacket. The utility model is characterized in that the sleeve tube is a tube body, the front part of which forms a collecting O shape; the inner part of the sleeve tube is sheathed and assembled with the front end edge of an inner tube of the heat gun; a rampart extended towards an outer tail is formed at the bottom edge of the sleeve tube; a through hole which is arranged on the rampart in radial direction is positioned at the inner edge of the front end of the heat gun; the through hole keeps separation distance with the surface of the sleeve tube; the jacket is correspondingly arranged at the circumference of the front end of the heat gun in a bundling mode, and is collected forward; the jacket keeps interval space with the circumference of the sleeve tube. The utility model is used for the heat gun.

Description

Prevent the safety device of heat gun air outlet high temperature injury

The utility model relates to the industrial heat air pressure gun.

Existing heat gun is as shown in Figure 1: in be wound with the heat gun A of high impedance electric heater, utilize fan B that heat energy is blown out through interior pipe C, surface Working Temperature reaches 500-600 ℃, though may use, shortcoming is:

1, because the front end that interior pipe C is formed in one and its front end stretches out heat gun A has certain-length, high temperature like this even stop to blow out, during pipe C front end, is understood serious burn when the people touches in, abnormally dangerous;

2, high temperature like this when inflammable articles such as touching wood, paper, has the danger of initiation fire;

3, the fin of interior pipe C mat heat gun A inside or a sheathed becket D in addition, high temperature continue to be passed to heat gun A inside through it, the result of accumulation, even heat gun A might be melted down.

The purpose of this utility model provides a kind of safety device that prevents heat gun air outlet high temperature injury that makes heat gun overcome its high temperature damage.

The purpose of this utility model is achieved in that the safety device that prevents heat gun air outlet high temperature injury, it comprises sleeve pipe, sheath, it is characterized in that: this sleeve pipe is the body that a front portion has the degree of lip-rounding of holding back, its front-end edge suit group knot inner and the interior pipe of heat gun, and has the ring wall that an outside tail extends in the moulding of sleeve pipe root edge, radially be provided with perforation on the ring wall and be positioned heat gun front end inner edge and keep a spacing with sleeve surface, the corresponding bundle of this sheath is located at the heat gun front periphery and is held back forward and receives and keep a clearance space with the sleeve pipe periphery.

Above-mentioned design, can make sleeve pipe and interior pipe box be loaded on heat gun front end inner edge, after the sheath bundle is located at the heat gun front periphery, during operation, many perforation of passing through ring wall around the pipe in the high temperature energy wind-force that produces prolongs, and the clearance space between sleeve pipe and sheath and outwards blowing out, because electric heater is located in the interior pipe, and its heating power blocks through inner pipe wall, pipe outside wind-warm syndrome is relatively low in making, and air-flow that will be colder outwards blows out via sleeve pipe ring wall and perforation, can effectively reduce the contact temperature of hot inner edge, simultaneously, sheath removes and can directly touch sleeve pipe and burn to prevent human body because of its material behavior and its periphery of mat, and the clearance space of itself and sleeve pipe, continue to have cold wind to blow out, both made sheath keep certain safe surface contact temperature, and made it avoid the accumulation of heat energy, do not cause heat gun impaired, reached the good safe effect that prevents High Temperature and harm.

Further specify again below by accompanying drawing, embodiment.

Fig. 1 has the heat gun organigram now;

Fig. 2 the utility model perspective exploded view;

Fig. 3 the utility model air-flow guiding schematic diagram;

Shown in Fig. 2,3: the utility model comprises sleeve pipe 13, sheath 14, it is characterized in that: this sleeve pipe 13 is the body that a front portion has the degree of lip-rounding of holding back, its front-end edge suit group knot inner and heat gun 1 interior pipe 11, and has the ring wall 131 that an outside tail extends in sleeve pipe 13 root edge moulding, radially be provided with perforation 132 on the ring wall 131 and be positioned heat gun 1 front end inner edge and keep spacing A with sleeve pipe 13 surface, these sheath 14 corresponding bundles are located at heat gun 1 front periphery and are held back forward and receive and keep a clearance space B with sleeve pipe 13 peripheries.Wherein, the appearance inlet of these sleeve pipe 13 rear ends is greater than the mouth of pipe of interior pipe 11, interior pipe 11 front-end edge correspondences penetrate overhead sleeve pipe 13 inside, should have a clearance space C on every side and between the appearance of sleeve pipe 13 inlet by interior pipe 11, make the contact area of sleeve pipe 13 and interior pipe be reduced to minimum by this, simultaneously, relatively poor and the heat conduction between pipe 11 and the sleeve pipe 13 in being minimized of the heat-transfer character of utilizing air, and then the surface temperature of sleeve pipe 13 and ring wall 131 thereof is descended, ring wall 131 is decreased with the temperature that contacts of heat gun 1 inner edge, reach safer effect.Wherein, this sheath 14 forms for heat-resisting and transparent plastic rubber shaping.Wherein, these sheath 14 leading edges are longer than the opening ora terminalis of sleeve pipe 13, can avoid human body not note and touch and scalded.Wherein, front-end edge 112 correspondences of this heat gun 1 interior pipe 11 penetrate the profile groove 133 suit integrated positionings of overhead sleeve pipe 13 inside.Sleeve pipe 13 and contacting of interior pipe 11 can be adopted fixed-point type, make contact area reduce to minimum, this shows that the utility model can be summarized as follows advantage:

1, interior pipe 11 with can be described as separate type design being connected of sleeve pipe 13, avoided heat gun 1 that the danger of meltdown is arranged because of the high heat energy that is provided with electric heater 111 and produces.

2, the high hot blast that blows out of fan motor group 12, the setting of mat sleeve pipe 13 makes heat gun 1 inner edge prevent the accumulation of high temperature, guarantees safety.

3, the setting of sheath 14 has fundamentally prevented the danger that heat gun air outlet high temperature is burnt to human body, thereby the use of heat gun is explored new possibilities, and has great practicality.

Claims

1, prevents the safety device of heat gun air outlet high temperature injury, it comprises sleeve pipe, sheath, it is characterized in that: this sleeve pipe is the body that a front portion has the degree of lip-rounding of holding back, its front-end edge suit group knot inner and the interior pipe of heat gun, and has the ring wall that an outside tail extends in the moulding of sleeve pipe root edge, radially be provided with perforation on the ring wall and be positioned heat gun front end inner edge and keep a spacing with sleeve surface, the corresponding bundle of this sheath is located at the heat gun front periphery and is held back forward and receives and keep a clearance space with the sleeve pipe periphery.

2, the safety device that prevents heat gun air outlet high temperature as claimed in claim 1, it is characterized in that: wherein, the appearance inlet of this sleeve pipe rear end is greater than the mouth of pipe of interior pipe, and interior pipe front-end edge correspondence penetrates the overhead inside pipe casing, has a clearance space around the pipe and between the appearance of sleeve pipe inlet in this.

3, the safety device that prevents heat gun air outlet high temperature as claimed in claim 1 is characterized in that: wherein, this sheath is that heat-resisting and transparent plastic rubber shaping forms.

4, the safety device that prevents heat gun air outlet high temperature as claimed in claim 1 is characterized in that: wherein, this sheath leading edge is longer than the opening ora terminalis of sleeve pipe.