CN1424539A

CN1424539A - Safety igniter for protecting children

Info

Publication number: CN1424539A
Application number: CN 02160665
Authority: CN
Inventors: 叶亚伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-12-31
Filing date: 2002-12-31
Publication date: 2003-06-18
Anticipated expiration: 2022-12-31
Also published as: CN1174183C

Abstract

A safe ignitor with insurance guarding against children includes a handle for holding and an ignitor shoot tube enlongated towards outside from upper end of handle, gas box and its gas valve, piezoelectric igniting device and ignition trigger located at stomak part of handle and partially to be bared out of handle shell with piezoelectric igniting device having its piezoelectric cap to be set in downwards way on upper position of the handle and also includes an insurance button set at back of the handle and located under the piezoelecric igniting device as its partial part to be bared out of the handle shell and it having a cylindrical edgefold at front end of its part contained in the handle, a cam with central waist shaped hole to be set under the piezoelectric cap and to lean against it with the cylindrical edgefold of said insurance button not only passing through in the waist shape hole but also to be as its rotary shaft so that front end of the cam will lean against the ignition trigger and will rotate around its rotary shaft under the driving of the ignition trigger.

Description

A kind of anti-children's safety igniting gun

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 only press button ignition switch routinely can't this burning torch of normal ignition.

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, the burning torch that has the modified locking switch also is devised, its locking switch has the performance that automatically replies, promptly, after burning torch need not or be finished using, its locking switch is in the position of " pass " all the time automatically, all discloses this anti-children's safety igniting gun as U.S. Pat US5697775, US6093017, US6244858 and BP GB2324140A.Yet, these designs all need operation safeties earlier bar none, and then press the down-firing trigger, and owing to be subjected to the restriction of burning torch volume, the parts volume that is arranged on safeties wherein is less, weight is lighter, can not have enough intensity, the user tends to be eager igniting and has forgotten first operation safeties, directly firmly push in this case and press hand, very likely burning torch is caused damage

In addition, existing various burning torches, its piezoelectric ignition device, gas box and air-valve device thereof all are arranged under the igniting trigger, cause the lower space in the handle crowded, thereby have brought the difficulty of design and fit on.

Summary of the invention

Technical problem to be solved by this invention provides a kind of anti-children's safety igniting gun, no matter be earlier the operation safety button, after push the igniting trigger, still push igniting trigger, back operation safety button earlier, but equal normal ignitions.

The present invention solves the problems of the technologies described above the technical scheme that is adopted: these anti-children's safety igniting gun includes 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, the igniting trigger is arranged on the belly position of handle, and the part is exposed to outside the handle housing, it is characterized in that described piezoelectric ignition device is arranged on the upper position of handle with its piezoelectricity cap posture down, and include:

One back that is arranged on handle, be positioned at the safety button under the piezoelectric ignition device, its part exposes to outside the handle housing, and its front end that is positioned at handle has a cylindric flanging;

One has the cam of central mounting hole, be positioned under the piezoelectricity cap and also offset with it, the cylinder flanging of described safety button promptly is through in its mounting hole and as its rotating shaft, and the front end of cam offsets with the igniting trigger and rotates around its rotating shaft under the igniting trigger actuated.

Described cam front end can be arranged under the igniting trigger and offset with it, but better, can on the sidewall of igniting trigger an evagination position be set, and described cam front end promptly is against under this evagination position.

After the igniting trigger is pushed igniting, described safety button can reset and outwards reset along with the piezoelectricity cap of piezo-electric device, but better, a spring that impels it outwards to reset can be set, one end of this spring and the front end of safety button offset, and the catch on the other end and the handle housing offsets;

In order to guarantee the location, the middle part that described safety button is positioned at housing can be embedded the gathering sill that is located at corresponding position in handle housing slidably; At this moment, above-mentioned spring can be set directly at the front end of this gathering sill.

The present invention in use, only be in the state of being pressed in safety button, and the igniting trigger also is pressed simultaneously, the mounting hole of its cam ring just can rotate with the posture that its front side wall is resisted against in its rotating shaft, thereby the piezoelectricity cap is compressed to the stroke that is enough to form igniting, otherwise, only by the down-firing trigger or only press safety button all can not realize the igniting.

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, mounting hole by cam rotates around its rotating shaft with different parts before and after it, control compression travel to the piezoelectricity cap, make it not press safety button as yet and during directly by the down-firing trigger, because of the piezoelectricity cap of piezoelectric ignition device is not compressed and can't light a fire by whole process as yet, therefore, even played, can not damage because of being pressed the igniting trigger constantly by children yet.On the other hand, no matter be earlier the operation safety button, after push the igniting trigger, still push igniting trigger, back operation safety button earlier, all can realize igniting, thereby convenient adult's normal use.

Description of drawings

Fig. 1 is the schematic perspective view of the embodiment of the invention.

Fig. 2 is a stereochemical structure decomposing schematic representation embodiment illustrated in fig. 1.

Fig. 3 is structural representation when taking off a slit bamboo or chopped wood handle housing embodiment illustrated in fig. 1.

Fig. 4 is the partial enlarged drawing of Fig. 1.

Fig. 5 is the partial enlarged drawing when only pressing the down-firing trigger.

Fig. 6 is the partial enlarged drawing when only pressing safety button.

Fig. 7 is for pressing the partial enlarged drawing of safety button and igniting trigger simultaneously.

The specific embodiment

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

As Fig. 1～shown in Figure 4, anti-children's safety igniting gun includes one can be provided with gas box and air-valve device 4 thereof, piezoelectric ignition device 6 for the handle 2 that grips and from the outward extending igniting gun barrel 1 in handle upper end in handle 2;

Igniting trigger 3 is arranged on the belly position of handle 2, and the part is exposed to outside handle 2 housings, and its underpart is provided with down a projection 32, over against the seesaw 41 of gas box air valve;

Described piezoelectric ignition device 6 is arranged on the upper position 21 of handle 2 with its piezoelectricity cap 61 posture down;

One safety button 5 is arranged on the back of handle 2 and is positioned under the piezoelectric ignition device 6, its afterbody exposes to outside the handle housing, its middle part 51 that is positioned at handle is embedded the gathering sill 22 that is located at corresponding position in handle housing slidably, and its front end has a cylindric flanging 52;

One spring 8 is provided with the front end of described gathering sill 22, and the end wall of its front end and gathering sill 22 offsets, and the front end flanging 52 of its rear end and safety button offsets;

One has the cam 7 of central mounting hole 71, be positioned under the piezoelectricity cap 61 and also offset with it, the cylinder flanging 52 of described safety button promptly is through in its mounting hole 71 and as its rotating shaft, and the front end of cam 7 is positioned under the sidewall evagination position 32 of igniting trigger 3 and offsets with it.

When only pressing down-firing trigger 3, as shown in Figure 5, under the effect at its evagination position 31, cam 7 rotates around its rotating shaft, its front end deflects down, and its rear end upward deflects and begin to compress piezoelectricity cap 61, but because this moment, safety button 5 was not pressed into, therefore the mounting hole 71 of cam is with its middle part or rear wall 52 deflections around the shaft, so its compression travel to piezoelectricity cap 61 does not reach range, thereby can't form the piezoelectricity sparking, at this moment, though the following projection 32 of igniting trigger 3 is depressed seesaw 41 and is made gas box 4 discharge combustion gas, but still can't realize igniting.

When only pressing safety button 5, as shown in Figure 6, the cylinder flanging 52 of its front end is resisted against on the front side wall of cam mounting hole 71, but because igniting trigger 3 is not pressed, therefore cam 7 can not deflect, and piezoelectricity cap 61 can not be compressed, simultaneously, the gas box air valve is not opened yet, and therefore can not realize igniting.

And when light a fire trigger 3 and safety button 5 are pressed simultaneously, as shown in Figure 7, no matter move sequencing, at this moment, cam 7 is under the effect of protuberance position 31 outside the igniting trigger, front side wall 52 deflections around the shaft with its mounting hole 71, its rear end reaches range to the compression travel of piezoelectricity cap 61, thereby makes piezo-electric device 6 sparkings, and this moment, the following projection 32 of igniting trigger 3 is depressed seesaw 41 and is made gas box 4 discharge combustion gas, thereby realizes igniting.

When unclamping igniting trigger 3 and safety button 5, piezoelectricity cap 61 resets downwards automatically, safety button 5 outwards resets under piezoelectricity cap 6 and spring 8 synergy, effect by 52 pairs of cam mounting holes 71 of its front end cylindricality flanging, make cam 7 deflections in the other direction and reset, 3 of triggers of igniting upwards reset under the effect of cam front end, referring to Fig. 4.

As mentioned above, because piezoelectricity cap 61 self has auto-reset function, therefore, the spring 8 in the foregoing description also can save, and to further facilitate assembling, reduces manufacturing cost.

Claims

1, a kind of anti-children's safety igniting gun, including 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, the igniting trigger is arranged on the belly position of handle, and the part is exposed to outside the handle housing, it is characterized in that described piezoelectric ignition device is arranged on the upper position of handle with its piezoelectricity cap posture down, and include:

2, anti-children's according to claim 1 safety igniting gun, it is characterized in that described cam front end be arranged on the igniting trigger under and offset with it.

3, anti-children's according to claim 1 safety igniting gun is characterized in that described igniting trigger is provided with an evagination position on its sidewall, and described cam front end promptly is against under this evagination position.

4, according to claim 1,2 or 3 described anti-children's safety igniting gun, it is characterized in that in handle, also being provided with a spring that impels safety button outwards to reset, one end of this spring and the front end of safety button offset, and the catch on the other end and the handle housing offsets.

5,, it is characterized in that the middle part that described safety button is positioned at handle is embedded the gathering sill that is located at corresponding position in handle housing slidably according to claim 1,2 or 3 described anti-children's safety igniting gun.

6, anti-children's according to claim 5 safety igniting gun is characterized in that at the front end of described gathering sill one spring that impels safety button outwards to reset being set also, and the end wall of its front end and gathering sill offsets, and the front end of its rear end and safety button offsets.