KR100363120B1 - Auto ignition gas cutter - Google Patents

Abstract

The present invention is to generate a spark while releasing a gas mixture of oxygen and gas supplied through the tip, the handle is provided with a high voltage generator and a gas distribution device for generating a high voltage inside the handle, high voltage generator The automatic button ignition gas cutting machine is installed in the back part of the handle so that the button can be easily operated, and when the button is operated, a part of the gas is automatically distributed and supplied to the preliminary ignition gas. By means of a button 21 exposed to the back (back) portion of the handle 2, the lever 25 for simultaneously operating the conventional piezoelectric element 27 and the piston 34 of the gas distribution device portion 20-1. Since it is designed to be operated, it is not necessary to twist the hand when holding the handle (2) and to fix the held hand correctly after the ignition is completed. The user's personality and characteristics can be eliminated, since the button 21 can be provided by exposing the button 21 to the back of the handle 2 and the one proposed to expose the button to the side of the handle 2. It can be used selectively depending on.

Description

Auto ignition gas cutter

The present invention relates to an automatic ignition gas cutting machine used to cut a metal object to be cut, such as an iron plate.

In more detail, in order to generate a spark while releasing a mixed gas of the supplied gas and oxygen through the tip, the inside of the handle is provided with a high voltage generating unit and a gas distribution unit for generating a high voltage In addition, the button portion of the high voltage generator unit is installed on the back of the handle so that the button can be easily operated, and when the button is operated, a part of the gas is automatically distributed and supplied as a preliminary ignition gas.

The present invention is to improve the automatic ignition gas cutting machine that is pre-registered and pre-registered by me.

Conventional gas cutters, which have been commonly used, were not equipped with a device to automatically ignite the sparks, so there was a great danger when igniting the sparks. That is, since the conventional gas cutting machine is not provided with a device for automatically igniting the flame, it was necessary to ignite the flame by using a separate ignition mechanism such as a matcher, an industrial lighter, as well as a commonly used lighter. In this way, when the spark is ignited using a separate ignition mechanism, the ignition mechanism is ignited first, and the oxygen supply valve and the gas supply valve of the gas cutter are operated to release the mixed gas from the tip, and to close the spark of the ignition mechanism to the tip. This will ignite the mixed gas emitted from the tip and generate a strong flame.

As such, the conventional gas cutting machine, which is intended to ignite the flame by a manual (artificial) method, has a trouble of carrying a separate ignition mechanism together, and when the ignition mechanism ignites the mixed gas generated at the tip, Since it is necessary to eject the mixed gas while bringing the flame close to the tip, it is not easy to properly adjust the amount of the mixed gas, and there is a problem of frequent safety accidents such as burns when ignited.

In order to solve the problem of the conventional gas cutting machine, I have proposed an automatic ignition gas cutting machine registered in advance of Utility Model Registration No. 40791 and Patent No. 226322, respectively.

The automatic ignition gas cutting machine proposed in Utility Model Registration No. 40791 can automatically ignite the gas cutting machine by automatically generating a pre-ignition spark by operating the lever, but the hand holding the handle by the automatic lever Since it is not easy to press it, it is troublesome to operate the operating lever with the other hand while holding the handle with one hand, and then move the operating lever to the hand used to operate the gas supply valve and oxygen supply. Since the valve had to be operated, the ignition operation could not be carried out easily, and when the piezoelectric element was pressed by pressing one side of the actuating lever installed on the shaft, the nozzle was lifted and the ignition gas was supplied. The amount of supply of ignition gas could not be adjusted. Because it is not provided with the leaking high voltage of the piezoelectric element was not possible to exclude the concern that prevents the ignition is not smoothly made.

In order to solve this problem, the automatic ignition gas cutting machine, which has been proposed to be improved and registered in Patent No. 226322, has an ignition button on the side of the handle in which the thumb of the hand is held by the handle. Ignition can be performed more easily by allowing the finger to operate the ignition button, but since the ignition button is provided on the side of the handle, close the bottom of the hand to the back of the handle to operate the ignition button. There is a hassle to hold the inwardly turned state, and after the ignition is completed, there is a closed end that needs to be held again while correcting the hand that is twisted inwardly.

The present invention is to provide a more improved automatic ignition gas cutting machine to solve the above problems and closed ends.

The present invention allows the gas and oxygen supplied through the gas supply port and the oxygen supply port to mix and discharge through the tip, the high voltage generation and the gas to distribute the supplied gas to the inside of the handle and generate an ignition flame at the same time In the dispensing device portion, a button for operating a normal piezoelectric element is provided on the back portion of the handle, and a gas distributing means for distributing gas to the front and rear portions of the lever while having a lever under the button ( It is an object of the present invention to provide an automatic ignition gas cutting machine comprising a device) and a piezoelectric element for generating an ignition flame.

Another object of the present invention is to make it easy to operate the button in the state of holding the thumb portion on the back (top) of the handle, as in the case of using the automatic ignition gas cutter when holding the handle, the ignition is completed It is to provide an automatic ignition gas cutting machine that does not need to be gripped later.

Still another object of the present invention is to provide an automatic ignition gas cutting machine which generates a pre-ignition spark when the button is operated at the same time the high voltage generated from the piezoelectric element and the gas distributed by the gas distribution device are supplied to the ignition part of the tip. It is.

The above and other objects of the present invention,

While adjusting the amount of gas and oxygen introduced through the gas supply port 3 and the oxygen supply port 4 provided at the lower end of the handle 2 by the gas control valve 7 and the oxygen control valve 6, the handle (2) is supplied through the gas supply pipe 10 and the oxygen supply pipe 11 provided at the tip of the head bracket 13 so that it can be mixed and discharged through the tip (14), the handle (2) A high voltage generated by the operation of the button 21 is connected to the ignition unit 60 through a wire 29 which is provided with a conventional piezoelectric element 27 and inserted into the mixed gas supply pipe 12. Part of the gas supplied when the button 21 is operated when the button 21 is operated to be generated as a spark from the ignition pin 52 of the 60 is distributed, and the gas supply to the ignition unit 60 through the mixed gas supply pipe 12. The handle is supplied to the nozzle 53 so as to be ignited by a spark generated from the ignition pin 52. The button 21 provided in the tooth (2) to be exposed to the back portion of the handle (2), and the lower side of the button 21 to install the mandrel to the shaft (25) to rotate the lever 22, the lever The lower side of the 22 is provided with a conventional piezoelectric element 27 and the upper side is provided with a gas distribution unit 20-1 for distributing and supplying gas so that the lever 22 can be operated simultaneously. It is achieved by the automatic ignition gas cutter 1 characterized by the above.

1A and 1B are front cross-sectional views of different positions showing the structure of an autoignition gas cutting machine according to the present invention.

Figure 2 is a side end shaving showing the main portion of the automatic ignition gas cutting machine according to the present invention.

※ Explanation of symbols for main parts of drawing

1. Automatic ignition gas cutter 2. Handle 3. Gas supply port

4. Oxygen supply port 5.7. Gas Control Valve 6. Oxygen Control Valve

8. Distribution Bundle 9. Gas Supply Pipe 10. Gas Supply Pipe

11. Oxygen supply pipe 12. Mixed gas supply pipe 13. Head bracket

14. Tip 20. High voltage generation and gas distribution system 21. Rubber cap

22.Lever 25.26. Axis 27. Piezoelectric Element

34. Piston 37. Sealing ring 38. Cylinder

43. Balance spring 45. Gas supply path 50. Ignition part

51. Nozzle Cap 52. Ignition Pin 53. Gas Supply Nozzle

The above and other objects and features of the present invention will be more clearly understood by the following detailed description based on the accompanying drawings.

Figures 1a to 2 is an exemplary view showing a specific embodiment of the automatic ignition gas cutting machine 1 according to the present invention, Figures 1a and 1b is a side cross-sectional view of the present invention, Figure 2 is an extract showing the main parts It is an enlarged cross section.

As shown in Figure 1a and Figure 1b automatic ignition gas cutting machine 1 according to the present invention

The handle 2, which is equipped with the high voltage generating and gas distribution unit 20, and the gas supply pipe 10, the oxygen supply pipe 12, and the mixed gas supply pipe 12, which are mounted on the upper end of the handle 2, on the front end surface. Distributing bundle frame (8) provided, the head end of the gas supply pipe 10 and the oxygen supply pipe 12 and the mixed gas supply pipe 12 is inserted and fixed, the tip 14 and the ignition unit 50 is built It is roughly divided into (13).

The lower end of the handle (2) is provided with a gas supply port (3) for supplying gas and an oxygen supply port (4) for supplying oxygen, but the gas supply port (3) is provided with a gas control valve (5) The amount of gas can be controlled. The upper end of the handle (2) is provided with a cap bracket (9) integrally, but between the handle (2) and the cap bracket (9) was equipped with a high voltage generation and gas distribution unit 20 described in detail later.

The high voltage generation and gas distribution unit 20 is provided with a button 21 on the upper side of the handle (2) to be exposed to the back portion. The lower side of the button 21 is " "The lever 22 in the form of a mandrel rotatably installed on the shaft 25, but the pressing piece 23 formed on the outer side of the top is covered with a button 21, the lower side of the pressing piece 24 formed in the lower inner Is provided with a conventional piezoelectric element 27 so that the ignition button 28 of the piezoelectric element 27 is in contact with the bottom surface of the mill piece 24, the gas supplied to the upper side of the mill piece 24 to distribute the ignition unit ( And a gas distribution device portion 20-1 to be supplied to the tank 50).

The gas distribution device unit 20-1 forms a cylinder chamber 33 in the cap bracket 2-1 and is attached to the gas supply pipe 30 and the distribution bundle 8 by the inlet path 32. The gas supply pipe 10 was communicated with the gas supply passage 31 communicating with each other, and the mixed gas pipe 12 was communicated with each other by the gas supply passage 45. The cylinder chamber 33 is coupled to the cylinder housing 38 of the front and rear part by the screw portion 39, but is hermetically coupled by an outer airtight o-ring 42, and sealed inside the cylinder housing 38 at the front surface. Insert a piston (34) with a ring (37), but between the flange (36) of the piston (34) and the stop piece (38-1) of the cylinder housing (38), the spring (40) and the support ring ( 41) and the sealing ring 42 were sequentially installed, and the valve shaft 35 of the piston 34 was mandrel mounted on the distal end 24 of the lever 22 by the shaft 26.

In particular, the balance spring 43 is hung between the inner surface of the cap bracket 2-1 and the shaft 26 to prevent swinging and maintain balance when the piston 34 is operated. The spring hanger 43-1 is fixed to the inner surface of the bracket 2-1, and one end of the balance spring 43 can be hooked to the spring hanger 43-1.

In addition, the electric wire 29 connected to the piezoelectric element 27 is fitted into the mixed gas supply pipe 12 fixed to the distribution bundle frame 8 and the cap bracket 9, but is sealed at the inner end of the mixed gas supply pipe 12. The packing 44 was inserted and pressed inward to the crimping portion 12-1 so as to be kept in a closed state.

In addition, the head fitting 13 into which the tip ends of the gas supply pipe 10, the oxygen supply pipe 11, and the mixed gas supply pipe 12 are inserted and fixed, includes a tip mounting chamber 13-1 and a gas supply hole 13-2. ), Through the oxygen supply hole (13-3), the mixed gas supply hole (13-4), but the gas supply hole (13-2) and the oxygen supply hole (13-3) is equipped with a tip is equipped with a tip (14) It communicates with the chamber 13-1, and the ignition part 50 was provided in the front-end | tip of the mixed gas supply hole 13-4. The ignition unit 50 is equipped with a gas supply nozzle 53 in which the ignition coil 54 is wound at the front end of the mixed gas supply hole 13-4, and an electric wire 23 wired through the mixed gas supply pipe 12. ) Is connected to the ignition pin 52 located on the front lower side of the ignition coil (54).

The operation relationship will be described below.

The automatic ignition gas cutter 1 according to the present invention ignites a flame at the tip 14 by pressing the button 21 of the high voltage generation and gas distribution device unit 20 while supplying gas and oxygen. Will be.

The automatic ignition gas cutter 1 supplies gas and oxygen through the gas supply port 3 and the oxygen supply port 4, but operates the gas control valves 5 and 7 and the oxygen control valve 6 to operate the gas. And the supply amount of oxygen and the mixed gas of oxygen and gas are operated in a state in which the gas 14 is discharged through the tip 14 of the head bracket 13.

The gas supplied through the gas supply port 3 is supplied to the gas supply pipe 10 via the gas supply pipe 30 and the gas supply path 31, and the gas supplied to the gas supply pipe 10 is provided by the head bracket ( 13 is supplied to the tip mounting chamber 13-1 through the gas supply hole 13-2, and then discharged through the tip 14, when the supplied gas passes through the gas supply passage 31. A part is in the state led into the inlet path (32).

When a part of the gas supplied as described above is drawn into the inlet 32, the high voltage is generated and the button 21 of the gas distribution device unit 20 is pressed by the hand holding the handle 2. ) Rotates to the lower side with respect to the shaft (25), and when the lever 22 is rotated, the pressing piece (24) presses the ignition button (28) of the piezoelectric element (27) in the piezoelectric element (27) The high voltage is generated, the high voltage generated by the piezoelectric element 27 is supplied to the ignition pin 52 of the ignition unit 50 through the wire 29 to generate a spark.

In addition, when the lever 22 is operated, the valve shaft 35 installed on the mandrel 24 is pulled at the same time, so that the piston 34 retreats while compressing the spring 40, and the piston 34 retreats. As the sealing ring 37 closing the inlet passage 32 retreats at the same time, the inlet passage 32 is opened. When the inlet passage 32 is opened, the gas introduced into the inlet passage 32 is cylinder chamber. Drawn in (33). The gas introduced into the cylinder chamber 33 is supplied to the mixed gas supply pipe 12 through the gas supply path 45 to move, and the gas supplied through the mixed gas supply pipe 12 is mixed gas supply hole 13. -4) is injected from the gas supply nozzle (53).

By pressing the button 21 to operate the lever 22 as described above, spark is generated between the ignition pin 52 and the ignition coil 54 and at the same time gas is supplied from the gas supply nozzle 53. Since the gas is ignited by the spark, the ignited flame is discharged through the nozzle cap 51.

In this way, in the state where the ignition flame is ejected from the nozzle cap 53, the gas control valve 7 and the oxygen control valve (not specifically shown) are brought close to the cutting object (not specifically shown) such as an iron plate. 6) to further open, the mixed gas injected from the tip 14 is ignited by the spark generated from the nozzle cap 53 while hitting and spreading the cutting object, so that a strong flame at the tip 14 Will be generated.

In this way, when the mixed gas ejected from the tip 14 is ignited by the ignition flame to completely eject the flame of strong intensity, the thumb holding the button 21 is removed, and the inside of the piezoelectric element 27 is removed. The ignition button 28 is advanced by the elastic force of the built-in spring (not specifically shown), and the lever 22 is returned to its original state with respect to the shaft 25 by the advance of the ignition button 28. When the lever 22 returns to its original state, the piston 34 moves forward because the compressed spring 40 of the distribution gas unit 20-1 expands and pushes the flange 36. When the 34 returns to the original state, the sealing ring 37 closes the inlet passage 32 to block the supply of the distribution gas. When the supply of the distribution gas is blocked, the ignition flame generated from the nozzle cap 51 is It naturally dies out.

Therefore, a strong fire power is generated only at the tip 14.

As described above, the automatic ignition gas cutter 1 according to the present invention handles the lever 25 for simultaneously operating the piston 34 of the conventional piezoelectric element 27 and the gas distributor 20-1. Since it is operated by the button 21 exposed to the back (back) part of 2), it is not necessary to twist the hand while holding the handle 2, and correct the hand that was held after ignition is completed. The user's personality can be eliminated, and thus, the button 21 can be exposed to the back of the handle 2 and the button can be provided together with the one proposed to be exposed to the side of the handle 2. Can be used selectively depending on the and characteristics.

Claims (2)

While adjusting the amount of gas and oxygen introduced through the gas supply port 3 and the oxygen supply port 4 provided at the lower end of the handle 2 by the gas control valve 7 and the oxygen control valve 6, the handle (2) is supplied through the gas supply pipe 10 and the oxygen supply pipe 11 provided at the tip of the head bracket 13 so that it can be mixed and discharged through the tip (14), the handle (2) A high voltage generated by the operation of the button 21 is connected to the ignition unit 60 through a wire 29 which is provided with a conventional piezoelectric element 27 and inserted into the mixed gas supply pipe 12. Part of the gas supplied when the button 21 is operated when the button 21 is operated to be generated as a spark from the ignition pin 52 of the 60 is distributed, and the gas supply to the ignition unit 60 through the mixed gas supply pipe 12. The handle is supplied to the nozzle 53 so as to be ignited by a spark generated from the ignition pin 52. The button 21 provided in the tooth (2) to be exposed to the back portion of the handle (2), and the lower side of the button 21 to install the mandrel to the shaft (25) to rotate the lever 22, the lever The lower side of the 22 is provided with a conventional piezoelectric element 27 and the upper side is provided with a gas distribution unit 20-1 for distributing and supplying gas so that the lever 22 can be operated simultaneously. Automatic ignition gas cutting machine characterized by. The gas distribution device portion 20-1 is provided with a cylinder chamber 33 in the cap bracket 2-1, and the gas supply pipe 30 and the distribution bunching frame are formed by the inlet path 32. 8) the gas supply pipe (10) mounted in communication with the gas supply passage 31 for communicating with each other, and the mixed gas pipe 12 and the communication with each other by the gas supply passage 45, the cylinder chamber 33 The front and rear portions of the cylinder housing 38 having an open type are coupled to each other by a screw part 39, but are hermetically coupled by an outer airtight o-ring 42, and an interior of the cylinder housing 38 has a sealing ring 37 on its front surface. Insert the provided piston 34, but the spring 40, the support ring 41 and the sealing ring between the flange 36 of the piston 34 and the stop piece 38-1 of the cylinder housing 38 (42) were sequentially mounted, the valve shaft (35) of the piston (34) mandrel its distal end to the push piece (24) of the lever (22) by the shaft (26), and the piston (34). This little In order to prevent swinging and maintain balance when moving, the balance spring 43 is hung between the inner surface of the cap bracket 2-1 and the shaft 26, but the spring is formed on the inner surface of the cap bracket 2-1. Fixing the hook (43-1), one end of the balance spring 43 to the spring hook (43-1) characterized in that the automatic ignition gas cutter.