CN1173126C - Safety ignition gun for children - Google Patents

Abstract

The present invention relates to a safety ignition gun for children. A safety device is arranged in a handle of the present invention. The present invention comprises a movable frame which is positioned below an ignition trigger and above a stilt plate of an air valve device, an operating piece which is positioned on a handle and can cause the movable frame to move to the side of a piezoelectric device and a compression spring, wherein the movable frame comprises a vertical rod and a transverse rod; the upper end of the vertical rod is adjacent to the upper wall of the ignition trigger, and the lower end is adjacent to the free end of the stilt plate; the front end of the head of the transverse rod is thin, and the back part of the transverse rod is thick; in the natural state, the thin part of the head of the transverse rod is clamped between a piezoelectric cap of the piezoelectric device and the middle bulge part of the ignition trigger, and the stroke of the ignition trigger is shorter than the piezoelectric ignition stroke of the piezoelectric cap of the piezoelectric device; the compression spring is arranged between the upper end of the vertical rod and the inner side wall of the ignition trigger so that the movable frame keeps a retreating state. Different thicknesses of the head of the transverse rod of the movable frame is used for controlling the stroke length of the piezoelectric cap, the piezoelectric cap under the condition of abnormal ignition can not be pressed by the whole stroke and is ignited, and thereby, the safety hidden trouble is thoroughly eliminated.

Description

A kind of children's safety burning torch

Technical field

The present invention relates to a kind of burning torch, particularly a kind of burning torch with the safety device that can prevent children's mis-ignition, that is, if the user routinely only can't this burning torch of normal ignition by the igniting trigger.

Background technology

Existing burning torch generally comprises one can be for the handle that grips and from the outward extending igniting gun barrel in handle upper end, in handle, be provided with gas box and air-valve device thereof, piezoelectric ignition device and igniting trigger thereof, the fuel gas of liquefaction is housed in gas box, during use, press the down-firing trigger, air valve is opened thereupon, piezoelectric ignition device produces electric spark by lead at the burning torch mouth of pipe simultaneously, light the fuel gas that is transported to the burning torch mouth of pipe through appendix, do not decontrol according to igniting trigger as continuing this moment, can keep burned flame at the gun barrel mouth, easy to operate.Because the gun barrel of burning torch stretches out, away from the staff that is held on the handle, therefore has suitable security compared with ignitors such as match, lighter, also have more simultaneously flexibility, therefore be loved by the people, be widely used in various occasions, as in the kitchen, lighting gas kitchen ranges, light bonfire when going out to picnic, in party, light birthday candle, or the like.Yet just because of the simplification of its operation, and therefore its profile, function, occupation mode be easy to be played and overdue combustion by children all the spitting image of a toy, thus the potential safety hazard of causing.

For this reason, the burning torch that has safety device is devised, and initial safety device comes down to a locking switch, has " opening " or " pass " two kinds of positions, and when being in the off-position, the igniting trigger is promptly stopped by it and can't be pressed.Yet a lot of users can forget after igniting finishes this locking switch is in the off-position again that at this moment, this locking switch has just lost effect fully.So, a kind of burning torch that has the modified locking switch also is devised, its locking switch has the performance that automatically replies, that is, after burning torch need not or be finished using, its locking switch was in the position of " pass " all the time automatically, this class burning torch roughly is divided into two classes again, one class is the network type electron trigger, makes the igniting trigger be stopped and can't be pressed, and promptly is like this as disclosed scheme in the U.S. Pat 6126437; Another kind of is the air valve of locking gas box, and air valve can't normally be opened, and promptly is like this as disclosed scheme in the U.S. Pat 6217313.The former to make, assembling has quite high requirement, and is not in place because if discharge cock is installed, and just might can't lock the trigger or by the fault of down-firing trigger not of lighting a fire; And the latter, then press the down-firing trigger, all the time can produce electric spark at the gun barrel mouth, though its air valve can not be conducted to combustion gas the gun barrel mouth because of locked, if but have combustible material still can cause unpredictable consequence this moment on every side, simultaneously, trigger is played if children press igniting for a long time, also can shorten the service life of piezo-electric device in it.

Summary of the invention

First technical problem to be solved by this invention is to provide a kind of children's safety burning torch at above-mentioned prior art present situation, it is after leaving unused or finishing using, automatically be in the safety locking state,, also do not show electric spark even press because of the maloperation trigger of only will lighting a fire.

Another technical problem to be solved of the present invention provides a kind of children's safety burning torch, even press because of the maloperation trigger of only will lighting a fire, air valve can not discharge fuel gas yet.

The present invention solves the problems of the technologies described above the technical scheme that is adopted: this children's safety burning torch includes one can be for the handle and the outward extending igniting gun barrel that grip, in handle, be provided with gas box and air-valve device thereof, piezoelectric ignition device, the igniting trigger is arranged on the belly position of handle, and be exposed to outside the handle, it is characterized in that also being provided with safeties in the handle, these safeties comprise:

One be positioned under the igniting trigger, the movable stand on the seesaw of air-valve device, include a montant and a cross bar, montant and cross bar are integral piece and roughly are cruciformity, the roof of the contiguous igniting in the upper end of its montant trigger, the free end of the contiguous seesaw in lower end, the head front end of cross bar is thinner, and thickening gradually backward, under nature, between the piezoelectricity cap that the position that the cross bar head is thin is sandwiched in piezo-electric device and the middle protuberance of the trigger of lighting a fire, make the stroke of igniting plate machine be slightly less than the piezo-electric ignition stroke of the piezoelectricity cap of described piezo-electric device;

One can drive the actuator of above-mentioned movable stand to the reach of piezo-electric device direction under the staff effect, the part of this actuator is exposed to outside the corresponding installing hole of handle;

One compression spring is arranged between the madial wall of montant upper end and igniting trigger, and under nature, this spring forces movable stand to keep the state that retreats.

Compared with prior art, the present invention utilize the piezoelectricity cap of piezo-electric device need be depressed the stroke of certain-length could piezoelectricity the principle of sparking, the different-thickness of the cross bar head by movable stand is controlled the stroke length of piezoelectricity cap, it can't be pressed down by whole process and light a fire under improper fired state, therefore, even played by children, can not damage because of being pressed the igniting trigger constantly yet, simultaneously, the suitable air valve seesaw of shape suitably is installed, also can make the montant of movable stand when maloperation can't depress the free end of seesaw, make air valve can't discharge gas, thereby thoroughly eliminate safe hidden trouble.

Description of drawings

The stereoscopic schematic diagram of Fig. 1 first embodiment of the invention.

Fig. 2 be among first embodiment igniting plate machine 4 be not pressed, the structure cross-sectional schematic when button 51 is not pressed into yet.

Fig. 3 is that igniting trigger 4 is pressed and the structure cross-sectional schematic of button 51 when not being pressed among first embodiment.

Fig. 4 is that igniting trigger 4 is not pressed and the structure cross-sectional schematic of button 51 when being pressed among first embodiment.

Fig. 5 be among first embodiment igniting trigger 4 be pressed, the structure cross-sectional schematic when button 51 also is pressed into.

Fig. 6 is the safeties perspective exploded view among first embodiment.

Fig. 7 has disclosed a kind of variation of the safeties among first embodiment.

The stereoscopic schematic diagram of Fig. 8 second embodiment of the invention.

Fig. 9 be among second embodiment igniting plate machine 4 be not pressed, the structure cross-sectional schematic when push button 52 is not pushed away down yet.

Figure 10 be among second embodiment igniting trigger 4 be pressed, the structure cross-sectional schematic when push button 52 is also pushed away down.

Figure 11 is the safeties perspective exploded view among second embodiment.

Figure 12 is the stereoscopic schematic diagram of third embodiment of the invention.

Figure 13 is that igniting plate machine 4 is not pressed among the 3rd embodiment, toggle 53 do not dialled the structure cross-sectional schematic when the handle ventral direction yet.

Figure 14 is that igniting trigger 4 is pressed among the 3rd embodiment, toggle 53 also dialled the structure cross-sectional schematic when the handle ventral direction.

Figure 15 is the safeties perspective exploded view among the 3rd embodiment.

Figure 16 is the stereoscopic schematic diagram of fourth embodiment of the invention.

Figure 17 is the structure cross-sectional schematic when also not being pushed to the handle ventral direction on the montant that igniting plate machine 4 is not pressed, exposed among the 4th embodiment;

Figure 18 is the structure cross-sectional schematic when also not being pushed to the handle ventral direction on the montant that igniting trigger 4 is pressed, exposes among the 4th embodiment.

Figure 19 is the safeties perspective exploded view among the 4th embodiment.

The specific embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

As Fig. 1～shown in Figure 6, be the first embodiment of the present invention, including one can be for the handle 3 and the outward extending igniting gun barrel 1 that grip, and handle 3 is made of two involutory housings, and gun barrel 1 is fixed on the protuberance 31 on handle 3 tops by fixed cover;

Be provided with gas box 6 and air-valve device 63 thereof, piezoelectric ignition device 9 in handle 3, igniting trigger 4 is arranged on the belly position of handle 3, and is exposed to outside the handle 3, also is provided with safeties in handle 3, comprising:

One is arranged on the safety button 51 of position, handle 3 back, and its afterbody exposes to outside the corresponding installing hole 32 (referring to Fig. 6) of handle 3;

One be positioned under the igniting trigger 4, the movable stand 8 on the seesaw 62 of air-valve device 63, the roof of the contiguous igniting in the upper end of its montant 81 trigger, the free end 62a of the contiguous seesaw 62 in lower end, seesaw 62 has a lower concave part at the position of the described montant of correspondence 81 lower ends simultaneously; The head of cross bar 82 has the boss 82b that a front end face is the inclined-plane, forms thin and its thicker shape of boss 82b of portion after a while of front end 82a; And under nature, the position 82a that the cross bar head is thin is sandwiched between the middle protuberance 42 of the piezoelectricity cap 91 of piezo-electric device 9 and the trigger of lighting a fire, and the afterbody of cross bar 82 has the head of a 82c of flanging portion and described safety button 51 to offset; Described igniting trigger 4 inwalls are provided with two small embossments, 41,45 formation, one gathering sill in cross bar 82 rear positions of the described movable stand of correspondence, simultaneously, described igniting trigger 4 inwalls also are provided with a small embossment 43 under described middle protuberance 42, thereby form the gathering sill on another same straight line;

One compression spring 7 is set between the madial wall of montant 81 upper ends and igniting trigger 4, and under nature, this spring 7 forces movable stand 8 to keep the state that retreats and make safety button 51 evaginations outside handle 3.

Described handle 3 inwalls are provided with a catch 33 that protrudes in the position of correspondence igniting trigger bottom 44, and distance between the two is slightly less than the piezo-electric ignition stroke of the piezoelectricity cap 91 of described piezo-electric device.

61 for transferring fiery button among the figure, and 93,92 for connecting the lead of piezo-electric device 9 both positive and negative polarities respectively, and their other end extends to 1 mouthful of (not shown) of gun barrel always; 46 side seal boards among Fig. 6 for igniting trigger 4.

During use, when safety button 51 not by by advancing in the handle 3, promptly under nature, movable stand 8 has only the thin position 82a of its cross bar 82 heads to be sandwiched between the middle protuberance 42 of the piezoelectricity cap 91 of piezo-electric device 9 and the trigger of lighting a fire, at this moment, if stopped by the catch on the handle 3 33 until its bottom 44 by down-firing trigger 4, piezoelectricity cap 91 does not reach the piezo-electric ignition stroke as yet, thereby piezo-electric device 9 can not struck sparks, and the montant of movable stand 8 corrects the lower concave part that stretches into seesaw 62 for 81 times simultaneously, therefore seesaw 62 is failure to actuate or the movement range deficiency, and air valve 63 still remains on closed condition;

When with safety button 51 by advancing in the handle, then the thicker position 82b of cross bar 82 heads of movable stand is filled between the middle protuberance 42 of the piezoelectricity cap 91 of piezo-electric device 9 and the trigger of lighting a fire, make piezoelectricity cap 91 that a stroke in advance arranged, press down-firing trigger 4 this moment again, then piezoelectricity cap 91 will reach the igniting stroke and make piezo-electric device 9 sparkings, and produce discharge spark by lead 92 (earth connection), 93 (electrode lines) on the spark generating assembly (not shown) of 1 mouthful of gun barrel; Meanwhile, the free end 62a of seesaw 62 is depressed in montant 81 lower ends of movable stand, thereby air valve 63 is opened, and is delivered to 1 mouthful of gun barrel by appendix 64, runs into discharge spark and produces flame.

Can slightly changing of described safeties, as shown in Figure 7, side away from piezo-electric device on described montant 81 is provided with the hyphen bar 83 that parallels with cross bar 82, with the enhancing degree, this moment, the 82c of flanging portion of original cross bar 82 afterbodys also prolonged the short montant 84 that becomes between connection cross bar 82, the hyphen bar 83; Be provided with a projection 83a at hyphen bar 83 afterbody downsides, and the corresponding position of 3 walls is provided with a baffle plate 34 (referring to Fig. 9, Figure 10) in handle, make under fired state, this projection 83a and this baffle plate 34 offset and make movable stand 8 spacing and can't retreat, and therefore overcome the restoring force that compresses spring 7, thereby alleviate the power of finger presses button 51.At this moment, spacing on the front end boss 82b of original cross bar 82 and the igniting trigger inwall between the small embossment 43 just no longer needs, so original cross bar front end boss 82b can be changed to a simple incline bench, with more convenient manufacturing, referring to Fig. 7.Be spacing compression spring 7 better, montant 81 can be provided with a projection 81a in a side relative with compression spring 7, and described compression spring 7 promptly is enclosed within on this projection 81a.

As Fig. 8～shown in Figure 11, be the second embodiment of the present invention, itself and the first embodiment difference are to push away by one and turn round 52 and substituted original button 51, its head 52a has cross bar 82 afterbodys (the promptly short montant 84 of an indented central position and movable stand, compare with Fig. 7 and slightly different) offset, and be gradual transition between the protrusion position of its central recess position and its upper end, the afterbody 52b of push button 52 exposes outside the corresponding installing hole of handle.

During igniting, push button 52 is down passed along the handle back, the short montant 84 of the afterbody of movable stand by original indented central position with push button head 52a offset become with its on the inclined-plane offset, top convex surface final and push button head 52a offsets, in this process, whole movable stand 8 moves to the piezo-electric device direction, make that the thicker position of cross bar 82 heads of movable stand 8 is filled between the middle protuberance 42 of the piezoelectricity cap 91 of piezo-electric device 9 and the trigger of lighting a fire, make piezoelectricity cap 91 that a stroke in advance arranged, press down-firing trigger 4 this moment again, then piezoelectricity cap 91 will reach the igniting stroke and make piezo-electric device 9 sparkings, and by lead 92 (earth connection), 93 (electrode lines) produce discharge spark on the spark generating assembly (not shown) of 1 mouthful of gun barrel; Meanwhile, the projection 83a on the hyphen bar 83 also offsets (referring to Figure 10) with baffle plate 34, and at this moment, even up promote push button 52, movable stand 8 can not move to handle back direction yet, makes user's operation very like a cork when igniting; Simultaneously the free end 62a of seesaw 62 is depressed in montant 81 lower ends of movable stand 8, thereby air valve 63 is opened, and is delivered to 1 mouthful of gun barrel by appendix 64, runs into discharge spark and produces flame.

As Figure 12～shown in Figure 15, be third embodiment of the invention, itself and the first embodiment difference are that toggle 53 has substituted button 51, the head of toggle is a projection 53a (referring to Figure 15), in handle, just in time be positioned at after the projection 81b of movable stand montant 81 corresponding positions, referring to Figure 15, Figure 13, the afterbody of toggle exposes outside the corresponding installing hole of handle, referring to Figure 12.

During igniting, toggle 51 is dialled to the handle ventral direction along the handle sidewall, the projection 81b that the projection 51a of toggle 51 heads will drive on the movable stand makes whole movable stand 8 move to the piezo-electric device direction, make that the thicker position of cross bar 82 heads of movable stand 8 is filled between the middle protuberance 42 of the piezoelectricity cap 91 of piezo-electric device 9 and the trigger of lighting a fire, make piezoelectricity cap 91 that a stroke in advance arranged, press down-firing trigger 4 this moment again, then piezoelectricity cap 91 will reach the igniting stroke and make piezo-electric device 9 sparkings, meanwhile, projection 83a on the hyphen bar 83 also with baffle plate 34 offset (referring to Figure 10), at this moment, decontrol toggle 51, movable stand 8 can not move to handle back direction yet, makes user's operation very like a cork when igniting; Simultaneously the free end 62a of seesaw 62 is depressed in montant 81 lower ends of movable stand 8, thereby air valve 63 is opened, and is delivered to 1 mouthful of gun barrel by appendix 64, runs into discharge spark and produces flame.

In the above-described embodiments, also the montant 81 of movable stand can be made with its projection 81b contourly, and be become a thicker wall, the projection 51a of toggle 51 heads promptly is positioned at thereafter, like this, and when igniting, the projection 51a of toggle 51 heads will drive whole montant 81, and such variation is more convenient for assembling.

As Figure 16～shown in Figure 19, be fourth embodiment of the invention, itself and the first embodiment difference are directly to have substituted button 51 by montant 81 upper ends of exposing the movable stand outside igniting trigger 4 upper ends, upper surface at igniting trigger 4 has a long and narrow hole 47, the upper end of montant 81 is passed above-mentioned long and narrow hole 47 and is exposed to outside the igniting trigger 4, under compression spring 7 natures, the upper end of montant 81 is positioned at the side of long and narrow hole 47 near the handle back.

During igniting, when montant 81 upper ends are passed to the handle ventral direction, movable stand 8 is also thereupon to the piezo-electric device side shifting, make that the thicker position of cross bar 82 heads of movable stand 8 is filled between the middle protuberance 42 of the piezoelectricity cap 91 of piezo-electric device 9 and the trigger of lighting a fire, make piezoelectricity cap 91 that a stroke in advance arranged, press down-firing trigger 4 this moment again, then piezoelectricity cap 91 will reach the igniting stroke and make piezo-electric device 9 sparkings, meanwhile, projection 83a on the hyphen bar 83 also offsets (referring to Figure 10) with baffle plate 34, at this moment, even unclamp montant 81 upper ends, movable stand 8 can not move to handle back direction yet, makes user's operation very like a cork when igniting; Simultaneously the free end 62a of seesaw 62 is depressed in montant 81 lower ends of movable stand 8, thereby air valve 63 is opened, and is delivered to 1 mouthful of gun barrel by appendix 64, runs into discharge spark and produces flame.

Claims (10)

1. children's safety burning torch, including one can be for the handle and the outward extending igniting gun barrel that grip, in handle, be provided with gas box and air-valve device thereof, piezoelectric ignition device, the igniting trigger is arranged on the belly position of handle, and be exposed to outside the handle, it is characterized in that also being provided with safeties in the handle, these safeties comprise:

One be positioned under the igniting trigger, the movable stand on the seesaw of air-valve device, include a montant and a cross bar, montant and cross bar are integral piece and are cruciformity, the roof of the contiguous igniting in the upper end of its montant trigger, the free end of the contiguous seesaw in lower end, the head front end of cross bar is thinner, and thickening gradually backward, under nature, between the piezoelectricity cap that the position that the cross bar head is thin is sandwiched in piezo-electric device and the middle protuberance of the trigger of lighting a fire, make the stroke of igniting plate machine be slightly less than the piezo-electric ignition stroke of the piezoelectricity cap of described piezo-electric device;

One can drive the actuator of above-mentioned movable stand to the reach of piezo-electric device direction under the staff effect, the part of this actuator is exposed to outside the corresponding installing hole of handle;

One compression spring is arranged between the madial wall of montant upper end and igniting trigger, and under nature, this spring forces movable stand to keep the state that retreats.

2. children's safety burning torch as claimed in claim 1 is characterized in that described actuator is the button that is positioned at the handle back, and the cross bar afterbody of its head and movable stand offsets, and its afterbody exposes outside the corresponding installing hole of handle.

3. children's safety burning torch as claimed in claim 1, it is characterized in that described actuator is to be positioned at handle back, the push button that moves up and down of handle relatively, the cross bar afterbody that its head has an indented central position and movable stand offsets, its afterbody exposes outside the corresponding installing hole of handle, and is gradual transition between the protrusion adjacent thereto position, indented central position of described push button head.

4. children's safety burning torch as claimed in claim 1, it is characterized in that described actuator be positioned at hand side, handle is made the toggle of move left and right relatively, its head is a projection, is positioned in handle after the montant of movable stand, and its afterbody exposes outside the corresponding installing hole of handle.

5. children's safety burning torch as claimed in claim 1 is characterized in that described actuator is the montant upper end of exposing the movable stand outside the described igniting trigger upper end.

6. as the arbitrary described children's safety burning torch of claim 1 to 5, it is characterized in that described handle inwall is provided with the catch of protrusion in the position of corresponding igniting plate machine bottom, distance between the two is slightly less than the piezo-electric ignition stroke of the piezoelectricity cap of described piezo-electric device.

7. as the arbitrary described children's safety burning torch of claim 1 to 5, it is characterized in that described igniting trigger inwall is provided with two small embossments in the cross bar rear positions of the described movable stand of correspondence and forms a gathering sill.

8. as the arbitrary described children's safety burning torch of claim 1 to 5, it is characterized in that the seesaw of described air-valve device has a lower concave part at the position of the montant lower end of the described movable stand of correspondence.

9. as the arbitrary described children's safety burning torch of claim 1 to 5, it is characterized in that described movable stand is provided with the hyphen bar that parallels with cross bar at its montant away from a side of piezo-electric device, be provided with and a projection at hyphen bar afterbody downside, and be provided with a baffle plate in the corresponding position of handle inwall, make that under fired state this projection and this baffle plate offset and make movable stand spacing and can't retreat.

10. as the arbitrary described children's safety burning torch of claim 1 to 5, it is characterized in that described movable stand is provided with a projection in its montant side relative with the compression spring, described compression spring promptly is enclosed within on this projection.

Images