Plasma cutting gun

Abstract

The utility model discloses a plasma cutting gun which comprises a handle and a gun head, a trigger is arranged on the handle in a hinged mode, a safety device is arranged between the trigger and the handle in a matched mode, the safety device comprises a sliding rail fixedly arranged in the handle and a sliding poking piece arranged on the sliding rail in a matched mode, and a trigger check block is fixedly arranged on the sliding poking piece. According to the plasma cutting gun, the safety device is arranged between the trigger and the handle in a matched mode, a worker can lock and unlock the trigger by adjusting the position of the sliding shifting piece, the situation that the trigger is touched by mistake when the plasma cutting gun is temporarily placed or moved is avoided, construction safety is guaranteed, and the plasma cutting gun has high practicability.

Description

Technical Field

[0001] This utility model relates to the field of cutting tools, specifically to a plasma cutting torch. Background Technology

[0002] Plasma cutting torches utilize the heat of a high-temperature plasma arc to locally melt the metal at the workpiece's cut edge, and then use the momentum of high-speed plasma to expel the molten metal to form a kerf. They are widely used due to their advantages such as high cutting speed, high cutting precision, easy setting of cutting conditions, ease of automation and unmanned operation, and relatively low cost. Plasma cutting torches have a trigger; pulling the trigger starts the process. However, existing plasma cutting torches lack a trigger safety mechanism, which can easily lead to accidental triggering and potential danger during temporary placement or movement, indicating significant room for improvement. Utility Model Content

[0003] In view of the problems existing in the background art, the purpose of this utility model is to provide a plasma cutting torch, which effectively solves the problems existing in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A plasma cutting torch includes a handle and a torch head. A trigger is hinged to the handle, and a safety device is provided between the trigger and the handle. The safety device includes a slide rail fixed inside the handle and a sliding paddle that is fitted on the slide rail. A trigger stop is fixed on the sliding paddle.

[0006] Furthermore, the handle includes two symmetrically arranged half-shells, which are fixedly connected by screws.

[0007] Furthermore, the slide rail is fixed on one of the half-shells and a groove is provided inside the slide rail, and two sliders that cooperate with the groove are symmetrically fixed on the sliding paddle.

[0008] Furthermore, a double-point limiting mechanism is also provided between the sliding paddle and the slide rail. The double-point limiting mechanism includes a cavity disposed in the slide rail and a V-shaped spring disposed in the cavity. The cavity is connected to the channel. Each end of the V-shaped spring is provided with a retaining bead. Each slider is provided with a first retaining groove and a second retaining groove. When the retaining bead enters the first retaining groove, the trigger stop is aligned with the trigger. When the retaining bead enters the second retaining groove, the trigger stop is misaligned with the trigger.

[0009] Furthermore, the V-shaped spring is made of spring steel.

[0010] This utility model has the following beneficial technical effects:

[0011] The trigger and handle of this invention are equipped with a safety device. The operator can lock and unlock the trigger by adjusting the position of the sliding paddle, which avoids accidental triggering when the plasma cutting torch is temporarily placed or moved, thus ensuring construction safety and making it highly practical. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0013] Figure 2 This is a schematic diagram of the overall structure of this utility model after removing one half-shell;

[0014] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0015] Figure 4 This is a schematic diagram of the structure of the dual-point limiting mechanism in the embodiment of this utility model. Detailed Implementation

[0016] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0017] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] like Figure 1-4As shown, the plasma cutting gun described in this embodiment includes a handle 1 and a gun head 2. A trigger 3 is hinged to the handle 1. Specifically, a hinge shaft 4 is provided on the handle 1. One end of the trigger 3 is rotatably sleeved on the hinge shaft 4. A safety device is also provided between the trigger 3 and the handle 1. The safety device includes a slide rail 5 fixed inside the handle 1 and a sliding paddle 6 that is fitted on the slide rail 5. A trigger stop 7 is fixed on the sliding paddle 6. Adjusting the position of the sliding paddle 6 can control the trigger stop 7 to block and release the sliding paddle 6 on the side away from the hinge shaft 4.

[0019] The handle 1 includes two symmetrically arranged plastic half-shells, which are fixedly connected by screws; the slide rail 5 is fixed on one of the half-shells and has a groove 8 inside; the sliding paddle 6 has two sliders 9 that cooperate with the groove 8, and the sliders 9 have an L-shaped cross-section.

[0020] To limit the position of the sliding paddle 6, prevent it from sliding freely due to looseness, and facilitate the operator's judgment of the locked state of the trigger 3, a double-point limiting mechanism is set between the sliding paddle 6 and the slide rail 5. The double-point limiting mechanism includes a cavity 10 set in the slide rail 5 and a V-shaped spring piece 11 set in the cavity 10. The V-shaped spring piece 11 is made of spring steel, and the tip of the V-shaped spring piece 11 is fixed in the cavity 10. The cavity 10 is connected to the channel 8. Each end of the V-shaped spring piece 11 is provided with a retaining bead 12. The retaining bead 12 is hemispherical. Each slider 9 is provided with a first retaining groove 13 and a second retaining groove. When the retaining bead 12 enters the first retaining groove 13, the trigger stop 7 is aligned with the trigger 3. When the retaining bead 12 enters the second retaining groove, the trigger stop 7 is misaligned with the trigger 3.

[0021] The working principle of this embodiment is as follows:

[0022] When the plasma cutting torch needs to be used, slide the sliding lever 6 to the end of the handle 1. Stop when you feel the locking ball 12 enter the second locking slot. The trigger stop 7 is offset from the trigger 3. At this time, press the trigger 3. The trigger 3 can be retracted into the handle 1 and the plasma cutting torch can be started.

[0023] When you stop using the plasma cutter, slide the sliding paddle 6 towards the front of the handle 1. The retaining ball 12 will disengage from the second retaining slot. Continue sliding until you feel the retaining ball 12 enter the first retaining slot 13 and stop. The trigger stop 7 will be aligned with the trigger 3. At this time, press the trigger 3. When the trigger 3 retracts into the handle 1, it will be blocked by the trigger stop 7. The plasma cutter cannot be started.

[0024] Compared with the prior art, the trigger 3 and handle 1 in this embodiment are equipped with a safety device. The operator can lock and unlock the trigger 3 by adjusting the position of the sliding paddle 6, which avoids the accidental trigger 3 when the plasma cutting torch is temporarily placed or moved, thus ensuring construction safety and having strong practicality.

[0025] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A plasma cutting torch, comprising a handle and a torch head, wherein a trigger is hinged to the handle, characterized in that, The handle includes two symmetrically arranged half-shells, which are fixedly connected by screws. A safety device is provided between the trigger and the handle. The safety device includes a slide rail fixed inside the handle and a sliding paddle that is fitted on the slide rail. The slide rail is fixed on one of the half-shells and has a groove inside. Two sliders that fit into the groove are symmetrically fixed on the sliding paddle. A trigger stop is also fixed on the sliding paddle. A double-point limiting mechanism is also provided between the sliding paddle and the slide rail. The double-point limiting mechanism includes a cavity disposed in the slide rail and a V-shaped spring disposed in the cavity. The cavity is connected to the channel. Each end of the V-shaped spring is provided with a retaining bead. Each slider is provided with a first retaining groove and a second retaining groove. When the retaining bead enters the first retaining groove, the trigger stop is aligned with the trigger. When the retaining bead enters the second retaining groove, the trigger stop is misaligned with the trigger.

2. The plasma cutting torch according to claim 1, characterized in that, The V-shaped spring is made of spring steel.

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