CN2558873Y - Safety lighter capable of preventing child from using it - Google Patents

Abstract

The utility model relates to a safety lighter for preventing from children, which comprises a shell, a piezoelectric device arranged inside the shell, a gas chamber and gas valve components thereof and a windshield. An upper end of the shell is provided with an activation button which presses against a piezoelectric cap of the piezoelectric device. The utility model is characterized in that a position inside the shell near the activation button is provided with a limited fitting which is matched with the activation button, thereby the activation button can not completely reposition upwards. The utility model originally puts forward the theory to prevent the activation button from completely repositioning. When in ignition, due to the ignition action is needed to be finished in succession, children with weak harmonizing ability are hard to imitate the ignition and lose interests and do not play with the lighter again for no ignition happens after normally and directly pressing the activation button for a plurality of times, thus effectively preventing accident ignition from happening.

Description

A kind of anti-children's safety lighter

Technical field

The utility model relates to a kind of lighter, especially refers to a kind of piezoelectric type lighter that has safeties, can prevent children's mis-ignition.

Background technology

Existing piezoelectric type lighter generally comprises shell, be positioned at the piezo-electric device of shell, fuel chamber and air-valve assembly thereof, shell upper end be provided with piezo-electric device in the piezoelectricity cap offset press hand, need only press during use and press hand, the piezoelectricity cap of piezo-electric device is compressed thereupon, when its compression travel reaches the igniting stroke, the hammer of piezo-electric device Yin Qinei clashes into piezo-electric crystal and discharges high voltage electric energy, and send electric spark at place, the gas outlet of air-valve assembly by the galvanic circle, and air-valve assembly discharges combustion gas this moment simultaneously under the effect of pressing hand, and combustion gas runs into electric spark and promptly realizes sparking.

Original lighter does not have safeties mostly, the operation of promptly pressing hand is unrestricted, thereby can't prevent in transportation and carry and press hand because of unexpected percussion in the process and strike sparks that also can't stop children to miss sparking because of playing, its result causes contingencies such as fire easily.So in order to improve the security of lighter, people design various safeties, its principle mainly contains two kinds:

First kind to be safeties in nature stop presses hand and make it and can't be pressed, during sparking, then move earlier in safeties, it is removed pressing the obstruction of hand, press again and press hand and can strike sparks, as the patent No. is 96245667.5 Chinese utility model " the piezoelectric type lighter of band safeties ", the patent No. is 00264032.5 the disclosed scheme that comes to this of Chinese utility model " being provided with the lighter of locking key ", this class lighter is when reality is used, the user must press in the operation safeties and press hand, and two actions must be finished with a finger, not only need cooperative ability preferably, and must operate with bigger power, thereby prevented children's mis-ignition preferably, yet, this is provided with obstacle also for simultaneously normal sparking, on the other hand, owing to be subjected to the restriction of lighter volume, the piece volumes of safeties is less, in light weight, can not have enough intensity, the user tends to be eager sparking and has forgotten first operation safeties, directly firmly push in this case and press hand, very likely lighter is caused damage, and, this situation also occurs on one's body the children easily, owing to when normal running, operate for singly referring to, therefore appearing children is directly to press (many do not have the lighter of safeties be exactly like this igniting) of pressing that hand just can light a fire, under the ordering about of curiosity, he might go into overdrive directly to press and press hand in the hope of sparking, thereby lighter is caused damage;

Second kind is that safeties directly do not stop and press being pressed of hand, but stop it to press to the igniting stroke, even piezo-electric device is not enough in lighting a fire because of the stroke of piezoelectricity cap, as the patent No. is 97210601.4 Chinese utility model patent " safe electronic lighter " a kind of scheme that comes to this, it " is equipped with a rubber-like safety locking bar; safety lock club head end face is corresponding with operating parts guide groove top end face; distance h between the two is less than the igniting stroke of igniter; when sparking; the igniter operating parts is depressed; will slide relatively in the top of safe locking bar in the guide groove of operating parts in the igniter mounting groove in body, reach h when pressing down distance, near but do not reach the igniting stroke, two corresponding end faces of operating parts guide groove top and safety lock club head contact, produce a suitable resistance, stop operating parts to continue to move downward.This moment, igniter also can not excite high-voltage spark that lighter is lighted, have only and continue consciously at this moment to apply bigger pressure to operating parts, operating parts guide groove top end face acts on safety lock club head end face, component on its horizontal direction will force safe locking bar to produce strain, operating parts just can continue to be depressed into igniter and excite the required igniting stroke of high-voltage spark, the fuel gas that the some gas valve has discharged ".It has overcome the operational deficiencies of above-mentioned first kind of lighter preferably, promptly when children in when sparking imitation, pressing hand can be pressed, but can can't strike sparks because the igniting stroke is not enough, after repeatedly attempting, children will lose interest and no longer play, and lighter is also unlikely so damage.But because the action of the normal ignition of this scheme is still with conventional consistent, just need to strengthen the dynamics that presses down, thereby can't prevent children's mistake sparking that finger power is bigger, on the other hand, its safety lock club head end face and operating parts guide groove top are after multi-pass operation, contact surface between the two can become smooth because of wearing and tearing, thereby in use for some time, the safety lock club head can diminish gradually to the resistance at operating parts guide groove top, finally make the operator need not apply bigger power and just can easy to doly light a fire, thereby lost safety effect.

Summary of the invention

Technical problem to be solved in the utility model is that a kind of new piezoelectric type lighter that has safeties, can prevent children's mis-ignition is provided at above-mentioned prior art present situation, when directly pressing down at the safety position of not removing safeties when pressing hand, press that hand can be pressed but can can't strike sparks less than the igniting stroke because of piezo-electric device up to pressing down also.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: these anti-children's safety lighter comprises shell, is positioned at the piezo-electric device of shell, fuel chamber and air-valve assembly thereof, shell upper end be provided with piezo-electric device in the piezoelectricity cap offset press hand, it is characterized in that contiguous position of pressing hand also is provided with a locating part in housing, itself and press between the hand and cooperatively interact, make that pressing hand can't fully upwards reset after igniting is used.

Described locating part can be arranged on the other locking bar of piezo-electric device for one, the upper design of this locking bar has to pass presses on hand corresponding guide groove and the outer end is exposed to the upper hem outside the shell, and this upper hem has a step in the bending place, when pressing hand upwards resetting along with resetting of piezo-electric device after igniting use to finish, the guide groove bottom of promptly pressing hand is subjected to step on the locking bar and stops and can't fully upwards reset; Perhaps, described locating part is one to be arranged on the other locking bar of piezo-electric device, the upper design of this locking bar has to pass presses on hand corresponding guide groove and the outer end is exposed to the upper hem outside the shell, and the described hand guide groove bottom of pressing is narrower, and form a step at intersection with its top, and described locking bar is assembled into the trend that has all the time towards step one side, when after igniting use to finish, pressing hand and upwards resetting along with resetting of piezo-electric device, described locking bar upper hem is stuck on the step of pressing the hand guide groove, presses hand and can't fully upwards reset and make.

Compared with prior art, the utility model has been broken through to stop in original design to press subordinate pressure or stop and has been pressed the principle that subordinate is depressed into the igniting stroke, propose in a creative way to stop to press the principle that hand resets fully, make that press hand just can't reach the igniting stroke next time when being pressed, the piezoelectricity cap of compressed thereupon piezo-electric device does not just reach the igniting stroke naturally yet, can't strike sparks, thereby prevent unexpected generation of striking sparks effectively.And to realize normal ignition, then press press hand before, must carry out a step pre-operation earlier, releasing is to pressing the spacing of hand, make and press hand and piezo-electric device and fully upwards reply and put in place, press down this moment again presses hand on earth, and the compression travel of the piezoelectricity cap of piezo-electric device will have enough igniting strokes as prior art, thereby makes the piezo-electric device normal ignition.Because igniting action of the present utility model needs one one afterwards to finish two different actions earlier, therefore for the more weak children of the coordination ability, be difficult to the imitation igniting, and children press hand and after can't lighting a fire all the time repeatedly directly pressing down with the routine action, can lose interest to this, no longer play; Simultaneously, in case, can not cause damage to lighter even the adult presses hand to pressing directly to press under the spacing situation of hand not removing in use yet.

Description of drawings

Fig. 1 is the cross-sectional schematic of locking bar under nature among the utility model first embodiment;

Fig. 2 presses piezo-electric device partial schematic sectional view when pressing hand for locking bar among Fig. 1 under nature;

Fig. 3 is the three-dimensional decomposition texture schematic diagram of Fig. 1;

Fig. 4 after promoting locking bar among Fig. 1, does not press when pressing hand, presses the cross-sectional schematic that hand and piezoelectricity cap reset;

Fig. 5 promotes locking bar among Fig. 1, and presses the cross-sectional schematic when pressing hand;

Fig. 6 is the cross-sectional schematic of locking bar under nature among the utility model second embodiment;

Fig. 7 be among Fig. 6 A-A to partial schematic diagram;

Fig. 8 is the three-dimensional decomposition texture schematic diagram of Fig. 6;

Fig. 9 after promoting locking bar among Fig. 6, does not press when pressing hand, presses the cross-sectional schematic that hand and piezoelectricity cap reset;

Figure 10 be among Fig. 9 B-B to partial schematic diagram;

Figure 11 promotes locking bar among Fig. 6, and presses the cross-sectional schematic when pressing hand.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

First embodiment sees that Fig. 1 is to shown in Figure 3, it comprises shell 4, is positioned at the piezo-electric device 2 of shell 4, fuel chamber 8 and air-valve assembly 5 thereof, wherein air-valve assembly comprises air-out needle 51 and the metal material seesaw 52 that links to each other with air-out needle 51, piezo-electric device 2 comprises piezoelectricity cap 21, piezoelectrics 22, shell 4 upper ends be provided with piezo-electric device 2 in piezoelectricity cap 21 offset press hand 1, and be provided with vertical guide groove 11 pressing hand 1 side; The influence of wind-engaging also is provided with windshield 6 above air-out needle in order to prevent to strike sparks, and is provided with the adjustable ring 7 of regulating flame size at the sidewall of shell 4;

Described locating part is one to be arranged on the other locking bar 3 of piezo-electric device, the upper hem 31 on these locking bar 3 tops passes presses on the hand 1 corresponding guide groove 11 and the outer end is exposed to outside the shell 4, but become operating parts, and this upper hem 31 has a step 32 in the bending place, when pressing hand 1 after igniting is used, when under the resetting-mechanism effect of piezo-electric device 2, upwards resetting, guide groove 11 bottoms of promptly pressing hand 1 are subjected to step 32 on the locking bar 3 and stop and can't fully upwards reset, lower hem 33 pads of these locking bar 3 bottoms are under the bottom of piezo-electric device 2, in order to locate whole locking bar 3.

When locking bar 3 in the raw the time, when promptly not being pushed, because the bottom of guide groove 11 is supported by the step on the locking bar 3 32, make that pressing hand 1 does not reset fully, and piezoelectricity cap 21 is pressed the control of hand 1 and also is in the state that does not reset, thereby the bump in the piezoelectrics 22 24 can not reset, as shown in Figure 2, at this moment, press hand 1 although can press, piezoelectricity cap 21 is glided, drive bump 24 simultaneously and glide, but compression spring 23 in the downslide process not by compression, therefore bump 24 can not produce enough impacts, make and to discharge between itself and the piezoelectrics 22, promptly can't produce voltage, so piezoelectrics 22 can not discharge igniting at piezoelectrics two interpolars, lighter can not be struck sparks, thereby plays the effect of security insurance.

When needs are struck sparks, must be that operating parts inwardly pushes away with being exposed to shell 4 outer locking bar 3 upper hems 31 earlier, as shown in Figure 4, at this moment, the bottom of pressing hand 1 guide groove 11 no longer is subjected to keeping out of locking bar step 32, pressing hand 1 upwards slides under the screen resilience effect of piezoelectricity cap 21 and resets, supported by the upper hem 31 of locking bar 3 until guide groove 11 bottoms, simultaneously, piezoelectricity cap 21 also obtains an amount of return-stroke and is in complete reset mode, and press and press hand 1 this moment, as shown in Figure 5, make the conducting strip 53 that is positioned under it, piezoelectricity cap 21 and piezoelectrics 22 move down, and by principles well-known, make piezoelectrics 22 discharges, conducting strip 53 is oppressed an end of seesaws 52 simultaneously, make the other end perk of seesaw 52 and jack-up air-out needle 51 and make air outlet valve discharge combustion gas, this moment, the Mars of piezoelectrics 22 2 utmost point discharge generation was lighted the combustion gas of releasing from air outlet valve, realized the igniting purpose.And in pressing the process that hand 1 presses, locking bar 3 is owing to be returned to original position under the screen resilience effect of self, thereby unclamp after the igniting and press hand, press in the process that hand 1 resets under the power of doing of piezoelectricity cap 21 screen resiliences, step 32 on the locking bar 3 props up the bottom of pressing hand 1 guide groove 11 once more, makes that pressing hand 1 can not reset fully, and piezoelectricity cap 21 can not reset fully, if press again and press hand 1, still can't strike sparks.

Second embodiment sees that Fig. 6 is to shown in Figure 8, itself and the first embodiment difference are described narrower in guide groove 11 bottoms of pressing hand 1, and form a step 12 at intersection with its top, locking bar 3 ' be assembled into has all the time the trend towards step one side, the lower hem 32 of this locking bar 3 ' bottom ' also fill up under the bottom of piezo-electric device 2.After igniting use to finish, when pressing hand 1 and upwards resetting along with resetting of piezo-electric device 2, described locking bar 3 ' upper hem 31 ' be stuck on the step 12 of pressing hand guide groove 11 was pressed hand 1 and can't fully upwards be resetted and make.Thereby both made to press and press hand 1 and can not strike sparks, its principle that can not strike sparks is identical with above-mentioned first embodiment, is not repeated.

When needs are struck sparks, must be earlier with the locking bar 3 ' upper hem 31 ' thruster left that is exposed to outside the shell 4, obtain as Fig. 9, state shown in Figure 10, at this moment, step 12 on the guide groove 11 no longer be subjected to locking bar 3 ' upper hem 31 ' keep out, pressing hand 1 upwards slides under the screen resilience effect of piezoelectricity cap 21 and resets, until locking bar 3 ' upper hem 31 ' offset with guide groove 11 bottoms, make piezoelectricity cap 21 also obtain an amount of return-stroke and be in reset mode, at this moment press and press hand 1, as shown in figure 11, make the conducting strip 53 that is positioned under it, piezoelectricity cap 21 and piezoelectrics 22 move down, thereby make piezoelectrics 22 discharges, conducting strip 53 is oppressed an end of seesaws 52 simultaneously, make the other end perk of seesaw 52 and jack-up air-out needle 51 and make air outlet valve discharge combustion gas, this moment, the Mars of piezoelectrics 22 2 utmost point discharge generation was lighted the combustion gas of releasing from air outlet valve, realized the igniting purpose.And in pressing the process that hand 1 depresses, locking bar 3 ' owing to be returned to original position under the screen resilience effect of self, thereby unclamp after the igniting and press hand 1, press in the process that hand 1 resets under the power of doing of piezoelectricity cap 21 screen resiliences, locking bar 3 ' upper hem 31 ' fasten the step of pressing on hand 1 guide groove 11 12 once more, make that pressing hand 1 can not reset fully, piezoelectricity cap 21 can not reset fully, if press again and press hand 1, still can't strike sparks, thereby reach the purpose that prevents the accident collision sparking.

Piezo-electric device in the foregoing description all is a formal dress, and promptly the piezoelectricity cap is descending at last, piezoelectrics, and the present invention in fact can be applicable to the lighter that piezo-electric device is upside-down mounting (figure slightly) equally, and this is also within the protection domain of invention.

Claims (4)

1, a kind of anti-children's safety lighter, comprise shell, be positioned at piezo-electric device, fuel chamber and air-valve assembly thereof and the windshield of shell, shell upper end be provided with piezo-electric device in the piezoelectricity cap offset press hand, it is characterized in that contiguous position of pressing hand also is provided with a locating part in housing, itself and press between the hand and cooperatively interact, make that pressing hand can't fully upwards reset after igniting is used.

2, anti-children's according to claim 1 safety lighter, it is characterized in that described locating part is one to be arranged on the other locking bar of piezo-electric device, the upper design of this locking bar has to pass presses on hand corresponding guide groove and the outer end is exposed to the upper hem outside the shell, and this upper hem has a step in the bending place, when pressing hand upwards resetting along with resetting of piezo-electric device after igniting use to finish, the guide groove bottom of promptly pressing hand is subjected to step on the locking bar and stops and can't fully upwards reset.

3, anti-children's according to claim 1 safety lighter, it is characterized in that described locating part is one to be arranged on the other locking bar of piezo-electric device, the upper design of this locking bar has to pass presses on hand corresponding guide groove and the outer end is exposed to the upper hem outside the shell, and the described hand guide groove bottom of pressing is narrower, and form a step at intersection with its top, and described locking bar is assembled into the trend that has all the time towards step one side, when after igniting use to finish, pressing hand and upwards resetting along with resetting of piezo-electric device, described locking bar upper hem is stuck on the step of pressing the hand guide groove, presses hand and can't fully upwards reset and make.

4,, it is characterized in that described locking bar bottom also has a lower hem, and pad is under the bottom of piezo-electric device according to claim 2 or 3 described anti-children's safety lighter.

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