A high-voltage electric arc automatic ignition cutting torch device suitable for casting cutting

Abstract

This utility model discloses a high-voltage electric arc automatic ignition cutting torch device suitable for casting cutting, including a cutting torch body and an ignition assembly. The gas pipe of the cutting torch body is fixed with a fixing component and a snap-fit ​​component. The ignition assembly includes an electric arc igniter. One end of the electric arc igniter is fixed with a connecting component, and the other end of the electric arc igniter is equipped with an electric arc generating head. The bottom ends of the connecting component and the fixing component are rotatably connected. The bottom end of the snap-fit ​​component has a snap-fit ​​groove. The electric arc generating head and the snap-fit ​​groove of the snap-fit ​​component are detachably connected by a snap-fit ​​method. The high-voltage electric arc automatic ignition replaces the traditional manual close-range ignition, completely avoiding direct contact between the operator and the ignition area, eliminating the risk of burns and deflagration caused by sudden electric arc or gas backfire. Moreover, the electric arc igniter does not require preheating. It can generate an electric arc instantly after the high-voltage circuit is started. The ignition response time is much shorter than the heating and temperature rise process of other igniters, making it especially suitable for continuous multiple ignition scenarios.

Description

Technical Field

[0001] This utility model belongs to the field of cutting torch structure technology, specifically relating to a high-voltage electric arc automatic ignition cutting torch device suitable for casting cutting. Background Technology

[0002] In casting cutting operations, traditional cutting torches often employ external igniters for direct ignition. This ignition method presents significant safety hazards, requiring operators to hold the igniter close to the torch, increasing the risk of burns or explosions due to sudden arcing or backfire. Furthermore, some igniters designed for ease of operation are often bulky and exposed outside the torch when not in use, making them inconvenient to store. They not only occupy space but also pose a risk of collision with surrounding equipment and workpieces in confined spaces or complex workpiece environments, causing damage, displacement, or accidental triggering. This affects the continuity and stability of the cutting operation, reducing the overall maneuverability of the torch. Especially in scenarios requiring frequent movement and turning, operators must exercise extra caution, increasing their workload and psychological stress, further increasing safety risks. Therefore, there is an urgent need for a compact, reliable, and highly safe high-voltage arc automatic ignition cutting torch device to overcome the shortcomings of existing technologies. Utility Model Content

[0003] To achieve the above objectives, this utility model provides the following technical solution: a high-voltage electric arc automatic ignition cutting torch device suitable for casting cutting, comprising a cutting torch body and an ignition assembly. The gas pipe of the cutting torch body is respectively fixed with a fixing component and a snap-fit ​​component. The ignition assembly includes an electric arc igniter. One end of the electric arc igniter is fixed with a connecting component, and the other end of the electric arc igniter is equipped with an electric arc generating head. The bottom ends of the connecting component and the fixing component are rotatably connected. The bottom end of the snap-fit ​​component is provided with a snap-fit ​​groove. The electric arc generating head and the snap-fit ​​groove of the snap-fit ​​component are detachably connected by a snap-fit ​​method.

[0004] As a preferred embodiment of this utility model, the arc igniter is arranged parallel to the gas pipe of the torch body through a fixing component and a snap-fit ​​component.

[0005] As a preferred embodiment of this utility model, the arc igniter includes an insulating shell, an arc generating head is disposed at one end of the insulating shell, a connector is fixed at the other end of the insulating shell, a high-voltage generating circuit is installed inside the insulating shell, and the arc generating head is electrically connected to the high-voltage generating circuit.

[0006] As a preferred embodiment of this utility model, the connector has a through hole at its center, the fixing member has a rotating shaft fixed at its bottom, and the connector is rotatably connected to the fixing member through the through hole via the rotating shaft.

[0007] As a preferred technical solution of this utility model, the bottom of the fixing member is integrally connected to a limiting block on one side of the rotating shaft.

[0008] Compared with the prior art, the beneficial effects of this utility model are:

[0009] (1) This utility model replaces the traditional manual close-range ignition with high-voltage electric arc automatic ignition, completely avoiding direct contact between the operator and the ignition area, eliminating the risk of burns and deflagration caused by sudden electric arc or gas backfire; and the electric arc igniter does not require preheating, and can generate an electric arc instantly after the high-voltage circuit is started. The ignition response time is much shorter than the heating process of other igniters, making it especially suitable for continuous multiple ignition scenarios. It is less affected by environmental humidity and dust, and can still maintain stable ignition performance under the complex working conditions of casting cutting.

[0010] (2) In the non-ignition state, the ignition component is parallel to the torch body through the snap-fit ​​structure, which greatly reduces the overall volume and solves the problem of traditional external igniters being exposed and occupying space. It is especially suitable for operation in narrow spaces or complex workpiece environments. In the non-working state, it is firmly locked to avoid collisions with surrounding equipment and workpieces during frequent movement or turning operations, reduce the risk of igniter damage, displacement or accidental triggering, and ensure the continuity of cutting operations.

[0011] (3) The rotating connection structure enables the rapid switching of the ignition components (working / storage state) without requiring operators to make extra movements, thus reducing the burden of operation; the positioning function of the limit block ensures accurate ignition position, improving ignition success rate and work efficiency. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the electric arc igniter in this utility model during ignition;

[0015] Figure 3 This is a schematic diagram of the structure of the arc igniter of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the fixing component in this utility model;

[0017] In the diagram: 1. Torch body; 2. Fixing component; 3. Clip-on component; 4. Arc igniter; 5. Connecting component; 6. Arc generator head; 7. Slot; 8. Insulating shell; 9. Perforation; 10. Rotating shaft; 11. Limiting block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example

[0020] Please see Figure 1-4 This utility model provides the following technical solution: a high-voltage electric arc automatic ignition cutting torch device suitable for casting cutting, including a cutting torch body 1 and an ignition assembly. The gas pipe body of the cutting torch body 1 is respectively fixed with a fixing member 2 and a snap-fit ​​member 3. The ignition assembly includes an electric arc igniter 4. One end of the electric arc igniter 4 is fixed with a connecting member 5, and the other end of the electric arc igniter 4 is equipped with an electric arc generating head 6. The bottom ends of the connecting member 5 and the fixing member 2 are rotatably connected. The bottom end of the snap-fit ​​member 3 is provided with a snap-fit ​​groove 7. The electric arc generating head 6 and the snap-fit ​​member 3 are detachably connected by a snap-fit ​​method.

[0021] In order to keep the arc igniter 4 in close contact with the torch body 1 when not ignited, reduce the overall space occupied, facilitate storage and avoid collision with surrounding objects, in this embodiment, as a preferred technical solution of the present invention, the arc igniter 4 is arranged parallel to the gas pipe of the torch body 1 through the fixing member 2 and the snap-fit ​​member 3.

[0022] In order to achieve stable generation and transmission of high-voltage electric arc, and at the same time protect the high-voltage generating circuit through the insulating shell 8 to avoid the risk of electric shock caused by the exposure of the high-voltage circuit and ensure the electrical safety of the operator, in this embodiment, as a preferred technical solution of the present invention, the arc igniter 4 includes an insulating shell 8, an arc generating head 6 is disposed at one end of the insulating shell 8, a connector 5 is fixed at the other end of the insulating shell 8, a high-voltage generating circuit is installed inside the insulating shell 8, and the arc generating head 6 is electrically connected to the high-voltage generating circuit.

[0023] In order to achieve a rotatable connection between the arc igniter 4 and the fixing member 2, so that the arc igniter 4 can rotate flexibly around the fixing member 2 and thus conveniently switch between the ignition working position and the storage position, in this embodiment, as a preferred technical solution of the present invention, the connecting member 5 has a through hole 9 at the center, and the fixing member 2 has a rotating shaft 10 fixed at the bottom. The connecting member 5 is rotatably connected to the fixing member 2 through the through hole 9 via the rotating shaft 10.

[0024] In order to limit the rotation angle of the arc igniter 4 and ensure that the arc generating head 6 can be accurately aligned with the flame outlet of the torch body 1 when it is in the ignition state, so as to ensure the accuracy and reliability of the ignition position, in this embodiment, as a preferred technical solution of the present invention, the bottom of the fixing member 2 is integrally connected to the limiting block 11 on one side of the rotating shaft 10.

[0025] In summary, by utilizing the above-described technical solution of this utility model, through

[0026] In the non-ignition retracted state: the arc igniter 4 forms a rotating connection base with the fixing part 2 through the connector 5, and its arc generating head 6 is engaged in the slot 7 of the locking part 3, so that the entire ignition assembly is kept parallel and close to the gas pipe of the torch body 1 through the dual positioning of the fixing part 2 and the locking part 3. At this time, the high-voltage generating circuit wrapped in the insulating shell 8 is in standby state, and the ignition assembly is retracted to the bottom of the torch body 1 to form a compact structure.

[0027] Ignition preparation operation: When ignition is required, the operator applies external force to the arc igniter 4, causing it to rotate around the shaft 10 at the bottom of the fixing part 2. The connecting part 5 rotates along the shaft 10 through the central through hole 9, causing the arc igniter 4 to disengage from the slot 7 of the snap-fit ​​part 3 and flip towards the flame outlet direction of the torch body 1. At the same time, the control switch on the insulating shell 8 that is electrically connected to the high voltage generating circuit is turned on.

[0028] Ignition position positioning: As the arc igniter 4 rotates, the limiting block 11 at the bottom of the fixing part 2 gradually contacts the connecting part 5, restricting its continued rotation, and finally making the arc generating head 6 accurately aligned with the gas ejection path of the torch body 1, ensuring the accuracy of the ignition position, and making the arc generating head 6 reach the preset ignition position.

[0029] High-voltage arc ignition: The high-voltage generating circuit inside the insulating shell 8 is activated, and high-voltage electricity is supplied to the arc generating head 6 through the wire. The arc generating head 6 generates a high-voltage arc instantly, which directly acts on the gas flow ejected from the torch to achieve rapid ignition of the gas.

[0030] Reset and Storage: After ignition, the operator rotates the arc igniter 4 in the reverse direction so that the arc generating head 6 is re-engaged into the slot 7 of the snap-fit ​​part 3. The entire ignition assembly is then returned to its stored state, parallel to the gas pipe of the torch body 1, ready for the next use.

[0031] Finally, it should be noted that, in this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high pressure arc automatic ignition torch device suitable for cutting of castings, comprising a torch body (1) and an ignition assembly, characterized in that: The gas pipe of the cutting torch body (1) is fixed with a fixing part (2) and a snap-fit ​​part (3). The ignition assembly includes an electric arc igniter (4). One end of the electric arc igniter (4) is fixed with a connector (5). The other end of the electric arc igniter (4) is equipped with an electric arc generating head (6). The bottom ends of the connector (5) and the fixing part (2) are rotatably connected. The bottom end of the snap-fit ​​part (3) is provided with a slot (7). The slot (7) of the electric arc generating head (6) and the snap-fit ​​part (3) are detachably connected by a snap-fit ​​method.

2. A high pressure arc automatic ignition torch device for cutting of castings according to claim 1, characterized in that: The electric arc igniter (4) is arranged parallel to the gas pipe of the torch body (1) through the fixing part (2) and the snap-fit ​​part (3).

3. A high pressure arc automatic ignition torch device for cutting of castings as claimed in claim 1 wherein: The arc igniter (4) includes an insulating shell (8), an arc generating head (6) is located at one end of the insulating shell (8), a connector (5) is fixed at the other end of the insulating shell (8), a high-voltage generating circuit is installed inside the insulating shell (8), and the arc generating head (6) is electrically connected to the high-voltage generating circuit.

4. A high pressure arc automatic ignition torch apparatus for cutting of castings as claimed in claim 1 wherein: The connector (5) has a through hole (9) at its center, and the fixing member (2) has a rotating shaft (10) fixed at its bottom. The connector (5) is rotatably connected to the fixing member (2) through the through hole (9) via the rotating shaft (10).

5. A high pressure arc automatic ignition torch apparatus for cutting of castings as claimed in claim 1 wherein: The bottom of the fixing member (2) is integrally connected to the limiting block (11) on one side of the rotating shaft (10).

Images