JPS5919863Y2 - Valve device for gas lighter - Google Patents

Description

[Detailed description of the invention] This invention provides a nozzle on-off valve and a gas injection valve in a coaxial arrangement at the top and bottom of the fuel tank, and adjusts the amount of gas ejected from the nozzle on-off valve from the gas injection valve side. This invention relates to improvements in valve devices for gas lighters.

In general, this type of gas lighter valve device has a common cylindrical body for both gas injection and nozzle opening/closing valves inserted through the upper and lower parts of the fuel tank, and both valve mechanisms are housed inside the cylinder body. On the side, a valve cylinder is separately housed inside the aforementioned cylinder body,
A valve body is housed inside and the gas ejection amount of the nozzle opening/closing valve is adjusted by rotating the valve cylinder (Japanese Utility Model Publication No. 49-39162). A cylindrical metal fitting is provided for mounting the valve cylinder, and the valve cylinders for opening and closing the nozzle and for the gas injection valve are installed separately inside the metal fitting.
The operating shaft is moved up and down by the rotation of the gas injection valve cylinder to adjust the amount of gas ejected (Utility Model Act 1973-
No. 9493) was common.

In this type of conventional valve device, the valve barrel and the cylindrical stopper and cylindrical body for attaching the same are overlapped in a concentric arrangement, so the cylindrical stopper and cylindrical body are larger than the thickness of the valve barrel. The overall external size increases due to the thickness, and if the fuel tank is made thinner, the outer diameter of the cylindrical stopper, cylinder body, and valve barrel must be reduced accordingly.This causes the valve itself to become smaller and require processing. In addition to making it difficult to operate, reliability also inevitably became low.

In view of the above-mentioned problems, the present invention allows the use of a valve of the same size as a conventional lighter, even if the fuel tank is thin, without causing difficulties in processing and, in turn, reducing reliability. The purpose of the present invention is to provide a valve device for a gas lighter that does not cause any damage to the gas lighter.

The gist of the configuration is to insert an upper valve cylinder for storing the nozzle on-off valve from the top of the fuel tank, and insert a lower valve cylinder for storing the gas injection valve from the bottom in a coaxial arrangement with the upper valve cylinder. In a valve device for a gas lighter, which is capable of adjusting the amount of gas ejected from a nozzle opening/closing valve from the valve cylinder side, the upper end of the connecting cylinder is screwed into the inner end of the upper valve cylinder, and the upper end of the connecting cylinder is screwed into the inner end of the upper valve cylinder. The operating shaft for adjusting the gas ejection amount is passed through the connecting tube, and the lower end of the connecting tube is screwed into the upper end of a cylindrical stopper that is locked in the innermost part of the lower valve cylinder housing hole formed at the bottom of the fuel tank. , the upper end of the lower valve cylinder is screwed into the lower end of the cylindrical stopper so that it can move forward and backward, and the lower end of the operating shaft is brought into contact with the upper end of the lower valve cylinder, and the lower valve cylinder is screwed forward and backward. The operating shaft is moved up and down to adjust the amount of gas ejected.This eliminates the need for a conventional cylinder body for housing the valve cylinder that penetrates the fuel tank, and also eliminates the need for a connecting cylinder and lower valve. By attaching the cylindrical stopper for the cylinder to the innermost part of the lower valve cylinder housing hole provided in the fuel tank, it is possible to make the fuel tank thinner without reducing the outer diameter of the valve cylinder itself. be.

Next, an example of implementation of the present invention will be described with reference to the drawings.

1 is a fuel tank, and an upper partition wall 2A of the fuel tank 1
An upper valve cylinder housing hole 4 having a stepped portion 3A is bored in the upper valve cylinder housing hole 4.

Further, a lower valve cylinder housing hole 5 having a stepped portion 3B coaxially arranged with the upper valve cylinder housing hole 4 is bored in the lower partition wall 2B.

An upper valve cylinder 6 is inserted into the upper valve cylinder housing hole 4, and the enlarged diameter portion 6A of the upper valve cylinder 6 is engaged with the stepped portion 3A via a packing 7.

Moreover, the inside of the upper valve cylinder 6 has a valve seat 6B having a communication hole 6C.
It is divided into a valve chamber 8 and a filter medium storage chamber 9 that accommodates a porous filter medium 10.

The valve chamber 8 has a nozzle opening/closing valve 1 equipped with an elastic body 13 at the lower end.
2 can be freely accessed and removed.

The nozzle opening/closing valve 12 passes through a cylindrical body 14 fitted to the upper end of the valve chamber 8 and projects above the top of the fuel tank 1.

Further, the gas ejection hole 12A of the nozzle on-off valve 12 communicates with the valve chamber 8 via a communication hole 12B formed in the nozzle on-off valve 12.

A spring 18 is provided between the enlarged diameter portion 12C at the lower end of the nozzle on-off valve 12 and a fixing member 17 fixed to the lower side of the cylindrical body 14 via a packing 16. The communicating hole 6C is closed by pressing it toward the 6B side.

The inner end 6D of the upper valve cylinder 6 is screwed into the upper end of the connecting cylinder 19.

The connecting cylinder 19 has a communication hole 1 that communicates with the inside of the fuel tank 1.
9A is the perforation.

20 is a cylindrical stopper; the upper end of the cylindrical stopper 20 is threadedly engaged with the lower end of the connecting tube 19, and the engagement stepped portion 20B of the lower expanded diameter portion 20A is connected to the lower end of the cylindrical stopper 20; It is engaged with a stepped portion 3B formed at the innermost part of the valve cylinder housing hole 5.

A lower valve cylinder 21 is inserted into the lower valve cylinder housing hole 5 from the bottom side of the fuel tank 1, and is composed of a threaded cylinder 21A and an adjustment cylinder 21B, and accommodates a gas injection valve 24. The upper end of the threaded cylindrical body 21A is threaded into the lower end of the cylindrical stopper 20.

An operating shaft 22 for adjusting the gas ejection amount passes through the connecting cylinder 19, and the upper end of the operating shaft 22 touches the porous filter medium 10 accommodated in the innermost part of the filter medium storage chamber 9. The lower end thereof is in contact with the upper end of the threaded cylinder 21A.

A gas injection valve 24 is inserted into the lower valve cylinder 21 .

The gas injection valve 24 is formed with a small diameter portion 24A, and a gasket 28 fitted into the small diameter portion 24A is engaged with the stepped portion 21C of the adjustment cylinder 21B.

The upper part 24B of the gas injection valve 24 is inserted into the lower valve chamber 26 formed inside the threaded cylinder 21A of the lower valve cylinder 21, and is provided between the upper step part 24C and the upper end 26A of the lower valve chamber 26. The gas injection valve 24 is always pressed downward in the drawing by the spring 27.

A gas injection port 29 is provided in the lower side 24C of the gas injection valve 24.
is drilled.

The gas injection valve 24 is connected to the spring 27 at the gas injection valve port 29.
When pushed up against the elasticity of the small diameter portion 24A, the small diameter portion 24A communicates with the lower valve chamber 26 through a communication hole 30 formed in the small diameter portion 24A.

The lower valve chamber 26 communicates with the lower valve cylinder housing (L5) through a communication hole 31 formed in the threaded cylinder 21A.

Further, the lower valve cylinder housing hole 5 is isolated from the outside air by packings 32, 32 fitted around the outer periphery of the adjusting cylinder 21B.

A notch 33 for rotating the adjusting cylinder 21B with a finger or the like is formed at the lower end of the adjusting cylinder 21B.

34 is a packing interposed between the lower inner periphery of the upper valve cylinder 6 and the upper outer periphery of the connecting cylinder 19; 35 is a packing interposed between the lower outer periphery of the connecting cylinder 19 and the upper inner periphery of the cylindrical stopper 20;
Reference numeral 36 denotes a communication hole bored in the lower partition wall 2B, which communicates the lower valve cylinder housing hole 5 with the inside of the fuel tank 1.

37 is a communication hole bored between the upper partition wall 2A and the lower partition wall 2B.

Next, the operation of the gas lighter valve device constructed as described above will be explained.

When the nozzle opening/closing valve 12 is pulled up against the elasticity of the spring 18, the communication hole 6C of the valve seat 6B, which had been closed by the elastic body 13, opens, and the fuel gas in the fuel tank 1 flows through the communication holes 37, 19A, and the connecting hole. The gas passes through the gap between the cylinder 19 and the operating shaft 22 and the filter material 10, reaches the valve chamber 8 from the communication hole 6C, and is further ejected from the communication hole 12B to the upper part of the nozzle opening/closing valve 12 via the gas ejection hole 12A.

When the force to pull up the nozzle opening/closing valve 12 is released, the nozzle opening/closing valve 12 is lowered by the elasticity of the spring 18, and the elastic body 13 closes the communication hole 6C again, so that the ejection of fuel gas is stopped.

In order to adjust the flow rate of the fuel gas, the adjustment cylinder 21B of the lower valve cylinder 21 is rotated.

As the adjustment cylinder 21B rotates, the lower valve cylinder 21 itself spirally advances and retreats within the lower valve cylinder housing hole 5, and therefore the operating shaft 22 that is in contact with its upper end also moves up and down, causing the filter medium 10 to move up and down. This means that the fuel gas can be compressed or relaxed, and the flow of fuel gas can be adjusted.

Next, when filling fuel gas into the fuel tank 1, the gas injection valve 24 is pushed up against the elasticity of the spring 27, and the gas injection port 29, the communication hole 30, the lower valve chamber 26, the communication hole 31, and the A flow path leading to the communication hole 36 is formed.

When the force pushing up the gas injection valve 24 is released, the gas injection valve 24 descends due to the elasticity of the spring 27, and the lower valve chamber 26 is shut off from the outside air by the gasket 28.
The fuel gas sealed in the fuel tank 1 can be prevented from leaking to the outside air.

As is clear from the above description, the valve device for a gas lighter according to the present invention connects the upper valve cylinder inserted from the top of the fuel tank and the lower valve cylinder inserted from the bottom in sequence using the connecting cylinder and the cylindrical stopper. Since the structure is constructed by connecting the upper valve cylinder and the lower valve cylinder in a coaxial arrangement and in a series arrangement while screwing together, there is no need for a cylinder body that penetrates the fuel tank to accommodate the upper valve cylinder and the lower valve cylinder. The fuel tank can be made thinner without the difficulty of machining to reduce the outer diameter of the cylinder and the lower valve cylinder.

In addition, the cylindrical stopper that is locked in the innermost part of the lower valve cylinder housing hole and the upper end of the lower valve cylinder are screwed together so that they can move forward and backward, and the operating shaft can be moved up and down by screwing the lower valve cylinder forward and backward to filter the filter. compression of wood,
Since the nozzle is relaxed, the amount of gas ejected from the nozzle opening/closing valve can be easily adjusted.

Further, the inner end of the upper valve cylinder is screwed to the upper end of the connecting cylinder, and the lower end of the connecting cylinder is screwed into the upper end of the cylindrical stopper that is locked to the innermost part of the lower valve cylinder housing hole. Therefore, the upper valve cylinder can be tightly fixed to the fuel tank by tightening the cylindrical fastener.

[Brief explanation of the drawing]

The drawing is a partially omitted sectional view of the valve device for a gas lighter according to the present invention. DESCRIPTION OF SYMBOLS 1...Fuel tank, 5...Lower valve cylinder housing hole, 6...Upper valve cylinder, 6D...Inner end, 12... ...Nozzle opening/closing valve, 19...
・Connection cylinder, 20... Cylindrical stopper, 21...
... Lower valve cylinder, 22 ... Operating axis, 24 ...
...Gas injection valve.

Claims (1)

[Scope of utility model registration request] An upper valve cylinder for storing the nozzle on-off valve is inserted from the top of the fuel tank, and a lower valve cylinder for storing the gas injection valve is inserted from the bottom coaxially with the upper valve cylinder, and the nozzle on-off valve is inserted from the lower valve cylinder side. In the valve device for a gas lighter, the upper end of the connecting cylinder is screwed into the inner end of the upper valve cylinder, and an operation for adjusting the gas jetting amount is provided in the connecting cylinder. The lower end of the connecting tube is threaded into the upper end of a cylindrical stopper that is fixed to the innermost part of the lower valve cylinder receiving hole formed at the bottom of the fuel tank, and The upper end of the lower valve cylinder is screwed into the lower end so that it can move forward and backward, and the lower end of the operating shaft is brought into contact with the upper end of the lower valve cylinder, so that the operating shaft is moved up and down by screwing the lower valve cylinder forward and backward. A valve device for a gas lighter characterized by adjusting the amount of gas ejected.