CN1115519C - Lighter - Google Patents

Abstract

A lighter comprises a shell (11), a middle sleeve (12), an air pipe (13) and a hand press wheel assembly (14), and particularly comprises air valves such as a lower valve (2), a valve (6), a pressure reducing sheet (7), an upper pressure reducing sheet (9) and a pressure stabilizing valve (10), wherein combustible gas flows through a cavity (3), an air groove (4) and an upper cavity (5) from the lower valve (2), the valve (6) is automatically opened, and the combustible gas is ignited to an outlet through the pressure reducing sheet (7), a flow splitting chamber (8), the upper pressure reducing sheet (9) and the pressure stabilizing valve (10), so that the combustible gas which is ignited each time is supplied is quantitative combustible gas, the quantitative gas is automatically extinguished after being combusted, in addition, a protective cover (17) is additionally arranged on the top surface of the lighter to cover the hand press wheel, and the safety during transportation and carrying is ensured.

Description

lighter

technical field

The invention relates to a lighter, in particular to a simple portable plastic lighter.

Background technique

Currently, the plastic lighters widely used in the market lack safety and are easy to be ignited by children. In addition, the user has to press the gas valve with his hand when using the lighter, and cannot automatically turn off the flame at regular intervals.

Contents of the invention

The object of the present invention is to provide a lighter that can automatically turn off the flame at regular intervals.

The present invention is realized in such a way that a lighter is provided, which includes a shell constituting the outer shape of the lighter and the supporting body of its inner parts, the hollow middle sleeve is inserted and fixed at a predetermined position of the shell, and the middle sleeve is provided with a light for lighting. As for the hand pressure wheel assembly, the air pipe for supplying combustible gas is installed and fixed at the lower end of the middle sleeve, and at least two gas valves capable of forming a quantitative supply of combustible gas are provided on the combustible gas path between the air pipe and the hand pressure wheel assembly.

The lighter may also include a protective cover on the top to cover the hand pressure wheel.

The advantage of the present invention is that, by adopting more than two gas valve structures on the combustible gas supply channel of the lighter, the combustible gas supplied each time is a quantitative combustible gas, thereby realizing the purpose of automatically turning off the flame at regular intervals. In addition, in the lighter A protective cover is added on the top to cover the hand pressure wheel, which completely prevents the possibility of the hand pressure wheel being accidentally touched and ignited, ensuring the safety during transportation and carrying.

Description of drawings

Embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the figure,

Fig. 1 is the structural representation of timing automatic extinguishing lighter of the present invention;

Fig. 2 is a comparative explanatory diagram of a single-valve lighter and a multi-valve lighter of the present invention;

Fig. 3 is a structural schematic view of the structure including the protective cover of the present invention, wherein the shell of the lighter is omitted to show the internal structure.

Detailed ways

Referring to Fig. 1, the timing automatic extinguishing lighter of the present invention includes a housing 11, a middle sleeve 12, an air pipe 13, a hand pressure wheel assembly 14, and a shaft sleeve 15, and in particular, a sliding sleeve 1, a lower valve 2, a cavity 3. Air tank 4, upper chamber body 5, valve 6, pressure reducing plate 7, shunt chamber 8, upper pressure reducing plate 9, pressure stabilizing valve 10. Wherein, the shell 11 forms the shell and skeleton of the lighter and the supporting body of the parts such as the middle sleeve 12, the middle sleeve 12 is inserted and fixed at the predetermined position of the housing 11, the middle sleeve 12 is a hollow shell-shaped structure, and the hollow part is not Equal-diameter cylindrical cavity, the cavity at the upper end is used to install the pressure stabilizing valve 10 and the bushing 15, the hand pressure wheel assembly 14 is installed in the bushing 15, used for ignition, the lower end of the middle sleeve is stuck into the air pipe 13, Install the sliding sleeve 1, the lower valve 2, the valve 6, the decompression piece 7, and the upper decompression piece 9 in the middle sleeve 12 and the trachea 13 to form a cavity 3, an air groove 4, an upper cavity 5, and a shunt chamber 8 , the position of each component and each tank chamber has been marked in the figure.

The working process of the present invention is as follows: when the rotating hand pressure wheel is ignited, the flint is pushed downward, and the sliding sleeve 1 is pressed downward to push the lower valve 2 to open, so that the combustible gas with pressure is quantitatively released from the cavity 3 along the arrow The direction shown is injected into the two air grooves 4 from both sides, and enters the upper cavity 5 through the air groove 4, and the valve 6 is automatically opened due to the pressure of the gas, passes through the decompression plate 7, enters the shunt chamber 8, and then passes through the upper chamber. The decompression sheet 9 automatically opens the pressure-stabilizing valve 10 by the air pressure of the gas, ignites to the top outlet, and the flame of the lighter begins to burn. When the internal pressure of the combustible gas is lower than a certain pressure, the valves from the valve 6 to the pressure stabilizing valve 10 are automatically closed to cut off the supply of the combustible gas, so that the flame is automatically extinguished quickly.

Referring to Fig. 2, Fig. 2 is the explanatory diagram of the functional state comparison of the lighter of single gas valve and multi-gas valve, and horizontal axis is burning time, counts in seconds, and vertical axis is flame height, counts in centimeters, broken line 1 is to have two Or the combustion effect and fire tail situation of the lighter with more than two gas valve devices, broken line 2 is the corresponding situation of the lighter with single gas valve, it can be clearly seen in the figure that the lighter with multi-gas valve (two or more) devices After being ignited, the flame height is relatively high, and it will automatically turn off in about two seconds without leaving any flame tail. However, the flame height of the single-valve lighter decreases rapidly after ignition, and leaves a longer flame tail, as shown in the figure. It is more dangerous to turn off the flame after the tail remains for about one second, therefore, the multi-air valve design of the present invention is just much superior.

Referring to Fig. 3, Fig. 3 is the structural explanatory drawing that comprises protective cover structure of the present invention, the structure of the left part in this figure has been given explanation in Fig. 1, does not repeat here, outside Fig. 1 parts, also Specially added a protective cover 17, located at the top, and the pin positioning lock 18, windshield 19, reinforcing rib 20, gas filling valve 21, like this, after being provided with the metal protective cover 17, the protective cover 17 can cover the hand pressure wheels, completely avoiding the possibility of accidentally touching the ignition during transportation or during carry-on, in particular, an elastic pin positioning lock is also used to make the protective cover 17 safe and stable, and can be firmly fixed on the cover and two positions fully open. The open position of the protective cover shown in the figure is far away from the flame, the flame of the lighter will not burn to the protective cover, even if it is a plastic protective cover, there will be no problem, and it will not be touched by the flame.

A metal windshield 19 has been set up at the place where the flame is ignited next to the hand pressure wheel, and two larger air holes are opened on both sides of the cover, so that there is enough air for combustion, and the heat dissipation is fast.

A reinforcing rib is added at the bottom of the inner cavity of the casing, and the reinforcing rib 20 is erected upward from the bottom along the middle part, on the one hand, the structural strength of the casing is strengthened, and the internal pressure of the combustible gas is reduced, so that the use is safe and the firepower is stable. .

A gas filling valve 21 is added inside the bottom of the housing, and new flammable liquefied gas can be added after the flammable liquefied gas inside is used up, so as to be suitable for the environmental protection requirements of different countries.

Claims (9)

1. A lighter, comprising a housing (11) that constitutes the outer shape of the lighter and its internal parts support body, the hollow middle sleeve (12) is inserted and fixed at a predetermined position of the housing (11), and the middle sleeve (12) is provided with a There is a hand pressure wheel assembly (14) for ignition, and the air pipe (13) for supplying combustible gas is installed and fixed at the lower end of the middle sleeve. At least two gas valves for metering combustible gas. 2. The lighter according to claim 1, characterized in that a lower valve (2), a valve (6), a decompression piece (7), an upper Pressure reducing sheet (9) and pressure stabilizing valve (10). 3. The lighter according to claim 1, characterized in that it comprises a sliding sleeve (1), a lower valve (2), a cavity (3), an air groove (4), an upper cavity (5), a valve (6), pressure reducing piece (7), shunt chamber (8), upper pressure reducing piece (9), pressure stabilizing valve (10), wherein, the upper cavity of the middle sleeve (12) is equipped with a pressure stabilizing valve (10) And the shaft sleeve (15), the hand pressure wheel assembly (14), the sliding sleeve (1), the lower valve (2), the valve (6), the pressure relief piece (7), and the upper pressure relief piece are installed in the shaft sleeve (15) (9) is installed in the trachea (13) and the middle sleeve (12), forming a cavity (3), an air groove (4), an upper cavity (5) and a distribution chamber (8). When ignited, the hand pressure wheel The assembly (14) is pushed downwards to ignite, the sliding sleeve (1) is pressed downwards, and the lower valve (2) is pushed to open, so that a certain amount of combustible gas flows through the cavity (3), the gas groove (4), the upper cavity ( 5), and automatically open the valve (6) through the pressure reducing plate (7), the split chamber (8), the upper pressure reducing plate (9) and the pressure stabilizing valve (10) to the outlet to ignite, and automatically turn off the flame after the quantitative gas is burned. 4. The lighter according to claim 1, characterized in that, when the internal pressure of the combustible gas is lower than a certain pressure, the valves from the valve (6) to the pressure stabilizing valve (10) are automatically closed to cut off the supply of the combustible gas. 5. The lighter according to claim 1, characterized in that it also includes an air filling valve (21), which is arranged inside the bottom of the casing for adding fresh air. 6. The lighter according to claim 1, characterized in that it also includes a protective cover (17), which is arranged on the top and covers the hand pressure wheel. 7. The lighter according to claim 6, characterized in that it also includes a pin positioning lock (18) installed in the housing to fix the protective cover (17) on the cover and fully open two positions. 8. The lighter according to claim 1, characterized in that it also includes a metal windshield (19), and large air holes are opened on both sides of the cover. 9. The lighter according to claim 1, characterized in that it further comprises a reinforcing rib (20) erected upwards from the bottom of the housing along the middle.

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