KR200469722Y1 - Torch handle of hand-operated welding torch - Google Patents

Abstract

The present invention relates to a torch handle of a torch for manual welding, the torch handle for manual welding according to an embodiment of the present invention is a housing for accommodating a part of the torch head and the welding cable, and one end is rotatable to a part of the housing A trigger switch coupled to each other, a limit switch driven by the trigger switch, and a slide switch controlling rotation of the trigger switch. The slide switch is configured to include an inner portion of the housing spaced apart from the limit switch by a predetermined distance. The slide switch is slidably coupled to the guide protrusion formed in the protrusion, and the slide switch includes a body having a cutout portion inserted into the guide protrusion at a lower portion thereof, and a hook portion protruding at a predetermined position on one side of the cutout portion. Is a hinge provided at a predetermined position inside the housing A hinge portion inserted into the hinge portion, a pressing portion extending from one side surface of the hinge portion, and a protrusion portion protruding from one side of the hinge portion spaced apart by a predetermined distance in parallel with the pressing portion, and between the protrusion portion and the pressing portion. A space portion is formed, and the hook portion is inserted into the space portion when the slide movement is characterized in that for fixing the position of the trigger switch.

Description

Torch handle of torch for manual welding {TORCH HANDLE OF HAND-OPERATED WELDING TORCH}

The present invention relates to a torch handle of a manual welding torch, in which an operator performs a welding by supplying a welding wire while discharging a protective gas for welding by operating a trigger switch installed below the torch handle. A torch handle of a manual welding torch having a slide switch capable of fixing a position of a trigger switch in operation.

In general, gas welding or arc welding apparatus is mainly used for welding carbon steel, alloy steel, and colored metal. The gas welding or arc welding apparatus is used to supply current to the wire while feeding a consumable electrode wire serving as a welding rod to a molten weld pool at a constant speed. It is an apparatus which generate | occur | produces an arc between a wire and a base material by applying. The carbon dioxide arc welding is a welding torch to perform welding in a protective gas for welding, such as carbon dioxide, hydrogen, nitrogen, helium, argon.

Welding torch is divided into automatic welding torch and manual welding torch, and automatic welding torch means the torch attached to the automatic welding device which performs the welding operation automatically. The manual welding torch allows the operator to directly It means to carry out welding while holding by hand.

The manual welding torch will be described in more detail.After the operator grasps the torch handle and approaches the torch head to the welding area, the welding protective gas filled in the gas cylinder is pushed to the gas nozzle of the torch head by pressing the torch switch installed on the handle with a finger. At the same time as ejecting through, a wire feeder pushes the electrode wire to feed it to a position adjacent to the substrate. An arc is generated at an end of the electrode wire adjacent to the base material by electricity supplied through the welder, and the base material is welded while the electrode wire is melted.

The torch handle of the conventional manual welding torch is merely a means for the worker to grip and perform welding by hand to perform a welding operation. In more detail, the torch handle of the torch for manual welding includes a release rod for connecting the welding cable to the torch sea, a pressing ring for pressing the gas pipe of the welding cable, and a housing for accommodating the release rod and the welding cable.

The welding cable is provided with an exterior material for protecting the cable from external impact, a control cable for controlling the field, a conductor through which the welding current flows, that is, a power line, and a gas pipe for feeding the welding protective gas.

However, in the case of welding using the torch handle of the manual welding torch as described above, the worker is welded to eject through the arc generating wire and the gas nozzle of the welding protective gas torch head for welding the base material. At the time of operation, the trigger switch must be pressed all the time, so the fatigue of the worker is increased and workability is deteriorated. There is a problem that the same safety accident occurs.

The present invention is to solve the problems as described above, to improve the workability by allowing the welding wire and the welding protective gas to be ejected even if the operator does not hold the trigger switch when the operator performs the welding operation, It is an object of the present invention to provide a torch handle of a torch for manual welding that can reduce the fatigue of the operator and prevent the occurrence of a safety accident.

In order to achieve the above and other objects of the present invention, according to one embodiment of the present invention, in the torch handle of the torch for manual welding disposed between the torch head and the welding cable, a portion of the torch head and the welding cable is accommodated. And a trigger switch having one end rotatably coupled to a part of the housing, a limit switch driven by the trigger switch, and a slide switch controlling rotation of the trigger switch. The slide switch is slidably coupled to a guide protrusion protruding in the housing spaced apart from the limit switch by a predetermined distance, the slide switch has a body formed with an incision to be inserted into the guide projection at the bottom, and at a predetermined position on one side of the incision It is configured to include a protruding hook portion, the trigger The hinge portion is inserted into the hinge pin provided in a predetermined position of the housing, the pressing portion extending from one side of the hinge portion, and the protrusions protruding on one side of the hinge portion spaced apart at regular intervals in parallel with the pressing portion. A space portion is formed between the protrusion and the pressing portion, and the hook portion is inserted into the space portion to fix the position of the trigger switch when the slide switch slides. Provide a torch handle.

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An accommodation groove is formed at a predetermined position on one side of the pressing part, and an elastic member is installed in the accommodation groove.

The limit switch is characterized in that it comprises a push-pull switch that is ON (ON) / off (OFF) by the drive of the trigger switch.

According to an embodiment of the present invention, when the operator performs the welding operation, even if the operator does not press the trigger switch, the welding wire and the welding protection gas can be ejected to improve the workability and reduce the fatigue of the operator It is effective to prevent the occurrence of safety accidents.

1 is a perspective view showing a torch handle of a torch for manual welding according to an embodiment of the present invention;
Figure 2 is an exploded perspective view showing a torch handle of the torch for receiving welding according to an embodiment of the present invention.
FIG. 3 is a view showing an operating state of a trigger switch and a slide switch shown in FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are defined in consideration of the functions in the present invention, and this may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

1 is a perspective view showing a torch handle of a torch for manual welding according to an embodiment of the present invention, Figure 2 is an exploded perspective view showing a torch handle of a torch for receiving welding according to an embodiment of the present invention, Figure 3 is FIG. 2 is a diagram illustrating an operating state of a trigger switch and a slide switch shown in FIG. 2.

1 to 3, the torch handle 100 of the torch for manual welding according to an embodiment of the present invention is disposed between the torch head 104 and the welding cable 102, and the torch head is straight or predetermined. The torch body 104a bent at an angle of, the gas nozzle 104b for injecting the welding protective gas to the base material, and the insulator 104c for electrically insulating the gas nozzle 104b and the torch body 104a. It is made, including.

In addition, the torch handle 100 may include a housing 110 accommodating a portion of the torch head 104 and the welding cable 102, and a trigger switch 120 having one end rotatably coupled to a portion of the housing 110. , A limit switch 130 driven by the trigger switch 120, and a slide switch 140 for controlling the rotation of the trigger switch 120.

The housing 110 is composed of a lower housing 112 and an upper housing 114 fastened by a plurality of screws 106.

Here, the guide protrusion 112a for guiding the slide switch 140, which will be described later, slides at a predetermined position inside the lower housing 112, is protruded, and the upper housing 114 facing the guide protrusion 112a. An opening 114a to which the slide switch 140 is coupled is formed.

The trigger switch 120 is rotatably coupled to a hinge pin 116 formed at a predetermined position inside the lower housing 112. Such a trigger switch 120 is hinged 122 inserted into the hinge pin 116. And a pressing part 124 extending from the hinge part 122, and a protrusion 126 protruding from one side of the hinge part 122 by being spaced apart at a predetermined interval in parallel to one side of the pressing part 124. It is done by

Here, a predetermined space portion 128 is formed between one side surface of the pressing portion 124 and the protrusion portion 126. The space portion 128 has a hook portion formed on one side surface of the slide switch 140 to be described later. 144 is combined.

In addition, an accommodating groove (not shown) is formed at a predetermined position on one side of the pressing part 124, and the accommodating member is configured to allow the trigger switch 120 to be always pressed in a direction away from the limit switch 130 described later. One end of 150 is inserted.

The limit switch 130 is provided with a push-pull switch 132 in contact with one side of the trigger switch 120 at a predetermined position on one side, and the push-pull switch 132 has a trigger switch 120 having an elastic member. If it is moved in the direction away from the limit switch 130 by the 150 (OFF), the state is turned off (OFF), and when the trigger switch 120 is moved in a direction closer to the limit switch 130, it is ON (ON) limit The switch 130 is turned on / off.

The slide switch 140 is slidably coupled to the guide protrusion 112a protruding in the lower housing 112 provided to be spaced apart from the limit switch 130 by a predetermined distance to control the rotation of the trigger switch 120.

In the lower portion of the slide switch 140, a pair of extensions 142a are protruded at a predetermined position on one side of any one of the body 142 and the pair of extensions 142a formed symmetrically at regular intervals. It is formed including a hook portion 144, the handle portion 146 is formed on the upper portion of the body 142.

Here, the above-described guide protrusion 112a is inserted between the pair of extension portions 142a, and the hook portion 144 is pushed 124 as the slide switch 140 slides along the guide protrusion 112a. It is located in the space portion 128 formed between one side of the protrusion and the protrusion 126 to control the rotation of the trigger switch 120.

According to the above configuration, the trigger switch 120 is always pressed in the direction away from the limit switch 130 by the elastic member 150, wherein the push-pull switch 132 is maintained in the OFF (OFF) state It is becoming. However, when the trigger switch 120 is pressed by the operator in a direction against the elastic force of the elastic member 150, the push-pull switch 132 is turned on (ON) and the limit switch 130 is turned on together.

At this time, when the slide switch 140 is slid to move the hook portion 144 is located in the space portion 128 formed between one side of the pressing portion 124 and the protrusion 126, the position of the trigger switch 120 It is fixed, and at the same time the welding is continuously made even if the operator does not continue to press the trigger switch 120.

On the contrary, the trigger switch 120 is elastic when the slide switch 140 is slidably moved so that the hook portion 144 is separated from the space portion 128 formed between one side of the pressing portion 124 and the protrusion 126. The welding is stopped by moving in a direction away from the limit switch 130 by the elastic force of the member 150.

Therefore, the torch handle of the manual welding torch according to an embodiment of the present invention allows the welding wire and the welding protective gas to be ejected even when the operator does not press the trigger switch when the worker performs the welding work. It is effective to prevent the occurrence of safety accidents by reducing the fatigue of the operator.

Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art will appreciate that various modifications and changes may be made thereto without departing from the spirit of the present invention as set forth in the following claims. It will be understood.

100: torch handle of the torch for manual welding 132: push pull switch
102: welding cable 140: slide switch
104: torch head 142: body
104a: torch body 142a: extension part
104b: gas nozzle 144: hook portion
104c: insulator 146: handle portion
106: screw 150: elastic member
110: Housing
112: lower housing
112a: Guide protrusion
114: upper housing
114a: opening
116: hinge pin
120: trigger switch
122: hinge part
124: press
126: protrusion
128: space part
130: limit switch

Claims (6)

In the torch handle of the torch for manual welding disposed between the torch head and the welding cable,
A housing accommodating a portion of the torch head and a welding cable;
A trigger switch whose one end is rotatably coupled to a portion of the housing;
A limit switch driven by the trigger switch; And
And a slide switch for controlling the rotation of the trigger switch.
The slide switch is slidably coupled to a guide protrusion protruding in the housing spaced apart from the limit switch by a predetermined distance,
The slide switch includes a body formed with a cutout inserted into the guide protrusion at a lower portion, and a hook portion protruding at a predetermined position on one side of the cutout.
The trigger switch may include a hinge portion inserted into a hinge pin provided at a predetermined position inside the housing, a pressing portion extending from one side of the hinge portion, and spaced apart at a predetermined interval in parallel with the pressing portion to one side of the hinge portion. Including a protrusion formed protrusion,
Torch handle of the manual welding torch, characterized in that a space portion is formed between the protrusion and the pressing portion, the hook portion is inserted into the space portion when the slide switch slides to fix the position of the trigger switch.
delete delete delete The method according to claim 1,
Torch handle of the manual welding torch, characterized in that the receiving groove is formed at one side of the pressing portion predetermined position, the receiving groove is provided with an elastic member.
The method according to claim 1,
And the limit switch has a push-pull switch which is turned on / off by driving of the trigger switch.

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