Child-preventing security igniting gun

Abstract

The invention relates to a child-resistant safety ignition gun, which comprises a handle for holding and a gun barrel extending outwards, wherein a fuel gas box, an air valve device thereof and a piezoelectric ignition device are arranged in the handle; and an ignition trigger for driving the piezoelectric ignition device to ignite and driving the air valve device to release air is arranged on the abdomen of the handle and part of the ignition trigger is exposed out of the handle. The child-resistant safety ignition gun is characterized in that a protecting device which makes the ignition trigger not restore completely after finishing using the ignition gun is also arranged in the handle, wherein the protecting device comprises a safety switch and a restorable blocking piece, wherein part of the safety switch is exposed outside a mounting hole corresponding to the handle; and the restorable blocking piece which can overcome restoring force to move under the drive of the safety switch, can resist the ignition trigger in the restoring state so that the ignition trigger cannot restore completely, and generate displacement and release the limitation on the ignition trigger under the drive of the safety switch so that the ignition trigger is restored. Besides, the child-resistant safety ignition gun has the advantages of simple and compact structure and high reliability.

Description

technical field [0001] The invention relates to an ignition gun, in particular to an ignition gun which can prevent children from mistakenly igniting because the user only presses the ignition trigger but cannot normally ignite. Background technique [0002] Existing igniter generally comprises a handle that can be held and a igniter tube that extends outwards from the handle upper end, is provided with gas box and its gas valve device, piezoelectric ignition device and ignition trigger in the handle, The box is filled with liquefied combustible gas. When in use, press the ignition trigger, and the gas valve will open accordingly. At the same time, the piezoelectric ignition device will generate electric sparks at the nozzle of the ignition gun through the wire, and ignite the combustible gas delivered to the nozzle of the ignition gun through the gas delivery pipe. Gas, at this time, if you keep pressing the ignition trigger and don't let go, you can maintain a burning flam...

AI Technical Summary

Problems solved by technology

However, because of its ease of operation, and its shape, function, and use are all like a toy, it is easy to be accidentally ignited by children playing, thereby causing safety hazards

[0003] In order to overcome the above defects, various ignition guns with safety devices have appeared, and most of the safety devices can automatically reset, that is, when the ignition gun is not used or after use, its safety device is always in the "off" automatically. At this time, only the ignition trigger is pressed but the ignition gun that cannot be ignited due to insufficient ignition stroke is designed, such as Chinese Patent No. 01246127.X "A Kind of Child Safety Ignition Gun", 02260474. "Ignition Gun" is such a solution. Although it can press the ignition trigger, it cannot be ignited by fully pressing the ignition stroke, so it overcomes the above defects well. However, in the process of use, the patent number is 01246127.X The cross rod used in "A Child Safety Lighting Gun" is a single piece with a large volume. When moving between the back and abdomen in the handle, it only relies on the guide groove on the side wall of the handle, so it will not move during the movement. Shake and become unstable between the side walls of the handle, resulting in the defect of poor ignition reliability; and when installing, because the return spring is against the upper part of the vertical rod, the force on the cross rod is unbalanced, and it is easy to make it out of the installation position. It makes installation time-consuming and troublesome; while the patent No. 02260474.X "Child-proof safety ignition gun" uses a slider, the upper edge of the slider is sandwiched between the ignition button and the piezoelectric ignition device, and the front end is thinner. In the natural state, the thinner part of the front end of the upper flap is sandwiched between the ignition button and the piezoelectric ignition device, so that the piezoelectric cap has an advance stroke in the natural state, but this stroke has not yet Make the piezoelectric cap reach the ignition stroke, so it cannot be ignited; the volume of the slider is also relatively large, the structure is relatively complicated, and it is not easy to process; moreover, the slider needs to be placed vertically, and the upper flange of the slider and the piezoelectric ignition device Adjacent, the lower flange of the slider is adjacent to the gas valve device, which makes it necessary to stagger the length of the slider in the vertical direction between the gas valve device and the piezoelectric ignition device, so that the volume of the entire ignition gun handle is elongated; In addition, since most piezoelectric ignition devices are not returned to their original positions after being used once, the piezoelectric is not easy to start when the piezoelectric ignition device is fired again. In this patent, a commission stroke is set for the piezoelectric ignition device in a natural state. During use, the piezoelectric ignition device is prone to malfunction due to failure to return to its original position

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