Plasma cutting torch

Abstract

The utility model discloses a plasma cutting torch, which relates to the technical field of plasma cutting guns, and comprises a gun handle, a gun head and an end head, one side of the end head far away from the gun head is fixedly connected with a nozzle, the outer wall surface of the gun handle is provided with a control switch I, the outer wall of the end head is sleeved with a rotating assembly, the rotating assembly comprises an inner ring column and an outer ring column, and the inner ring column and the outer ring column are fixedly connected with the nozzle. The inner ring wall of the inner ring column is fixedly connected with the outer wall of the end, the outer ring column is rotatably connected with the inner ring column, four electric telescopic rods are arranged on the outer wall of the outer ring column, a second control switch is further arranged on the outer wall face of the gun handle, and the second control switch is electrically connected with the four electric telescopic rods. And the output ends of the four electric telescopic rods face one side of the nozzle, the output ends of the four electric telescopic rods are fixedly connected with connecting rods, the ends, away from the electric telescopic rods, of the connecting rods are rotationally connected with rotating columns, and the device has the advantage that the cutting efficiency and effect of the plasma cutting gun are improved.

Description

Technical Field

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

[0002] A plasma cutting torch, also known as a plasma cutting gun, is a device that uses high-temperature plasma to cut metal materials. Its principle is to use high-temperature plasma to heat the metal material to above its melting point, and then use gases such as oxygen or nitrogen to blow away the molten metal, thereby achieving the purpose of cutting.

[0003] Currently, the cutting nozzles of existing plasma cutting torches on the market suffer from short service life and high damage rate due to the heat generated during steel cutting.

[0004] A plasma cutting torch with publication number CN218612190U includes a handle, a head, and an end cap. A control switch is provided on the wall of the handle, and a guide assembly is detachably connected to the wall of the end cap. By manually pulling two actuating plates, the first clamp is deformed, increasing the width of the opening of the first clamp. When the first clamp is pushed into the slot and the actuating plates are released, the elasticity of the first clamp causes the opening of the first clamp to shrink, and the first clamp is engaged in the slot, thus connecting the first clamp to the end cap.

[0005] The device controls the spray distance between the nozzle and the workpiece through a connecting plate, adjusting screw, and first clamp. However, the resistance generated when the connecting plate contacts the workpiece is large, which will cause wear on the cut edge of the workpiece and cannot effectively improve the cutting effect of the plasma torch. Therefore, it is necessary to design a plasma torch that can improve the efficiency and effect of plasma torch cutting. Utility Model Content

[0006] The purpose of this invention is to provide a plasma cutting torch to address the shortcomings of existing technologies and solve the problems mentioned in the background section.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a plasma cutting torch, including a handle, a head, and an end cap. A nozzle is fixedly connected to the side of the end cap away from the head. A control switch is provided on the outer wall of the handle. A rotating assembly is sleeved on the outer wall of the end cap. The rotating assembly includes an inner ring column and an outer ring column. The inner ring wall of the inner ring column is fixedly connected to the outer wall of the end cap. The outer ring column is rotatably connected to the inner ring column. Four electric telescopic rods are provided on the outer wall of the outer ring column. A control switch is also provided on the outer wall of the handle. The control switch is electrically connected to the four electric telescopic rods. The output ends of the four electric telescopic rods face the nozzle side. A connecting rod is fixedly connected to the output ends of the four electric telescopic rods. A rotating column is rotatably connected to the end of the connecting rod away from the electric telescopic rod. A groove is formed on the side of the rotating column away from the connecting rod. A ball is movably connected in the groove.

[0008] This utility model further illustrates that four limiting blocks are fixedly connected to the outer circumference of the inner ring column, and a limiting groove is formed on the inner wall of the outer ring column corresponding to each limiting block.

[0009] The present invention further explains that the limiting block is an arc-shaped block, and the four limiting blocks are evenly distributed in a circle with the axis of the inner ring column as the center.

[0010] The present invention further explains that the limiting groove is an arc-shaped groove, the arc length of the limiting groove is less than 1 / 4 of the inner diameter circumference of the outer ring column, and the arc length of the limiting block is 1 / 3 of the arc length of the limiting groove.

[0011] The present invention further illustrates that a shielding net is fitted on the side of the outer wall of the outer ring post away from the gun head, and the inner ring wall of the shielding net is fixedly connected to the outer ring post.

[0012] This utility model further illustrates that multiple stabilizing rings are connected to the four connecting rods. The multiple stabilizing rings are concentrically arranged with the outer ring column. The multiple stabilizing rings are linearly arranged along the axial direction of the connecting rods. The multiple stabilizing rings are all located on the side of the shielding net away from the electric telescopic rod.

[0013] This utility model further illustrates that four marker poles are fixedly connected to the screen, and the four marker poles are evenly distributed in a circle with the center of the screen as the center. Each marker pole is located in the middle position between two electric telescopic poles.

[0014] The present invention further describes that a cooling cavity is provided inside the inner ring column, and a liquid injection port is provided on the inner ring column along the axial direction and on the side near the nozzle. The liquid injection port is connected to the cooling cavity, and coolant is injected into the cooling cavity through the liquid injection port.

[0015] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model, by setting a rotating component, provides an electric telescopic rod, a connecting rod, a rotating column and a ball on the outside of the outer ring column, and effectively controls the spray distance from the nozzle to the cutting object according to the thickness of the object to be cut, thereby improving the cutting effect on the object.

[0016] By setting up a shielding net and a guide rod, the operator's safety is protected, and the guide rod helps to control the movement path of the nozzle to match the cutting path, thereby improving the cutting effect on the workpiece.

[0017] By setting a cooling chamber and a liquid injection port inside the inner ring column, and injecting coolant into the cooling chamber, the heat generated by the nozzle is cooled, thereby increasing the working time and service life of the nozzle, and thus improving the cutting efficiency of the cutting torch. Attached Figure Description

[0018] 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:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the end of this utility model and its related structures;

[0021] Figure 3 This is a schematic diagram of the disassembled cross-sectional structure of the rotating component of this utility model;

[0022] Figure 4 This is a schematic diagram showing the disassembled structure of the rotating column and related components of this utility model.

[0023] In the diagram: 1. Gun handle; 2. Gun head; 3. End; 4. Nozzle; 5. Control switch one; 6. Rotating assembly; 7. Inner ring column; 8. Outer ring column; 9. Limiting block; 10. Limiting groove; 11. Shielding net; 12. Electric telescopic rod; 13. Connecting rod; 14. Control switch two; 15. Stabilizing ring; 16. Rotating column; 17. Groove; 18. Sphere; 19. Circular groove; 20. Marker; 21. Cooling chamber; 22. Injection port. Detailed Implementation

[0024] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] Example 1, please refer to Figure 1-4 The present invention provides a technical solution: a plasma cutting torch, comprising a handle 1, a head 2 and an end 3, the head 2 being fixedly connected to the handle 1, the end 3 being fixedly connected to the head 2, the end 3 being cylindrical, and a nozzle 4 being fixedly connected to the side of the end 3 away from the head 2, the nozzle 4 being concentrically arranged with the end 3, and a control switch 5 being provided on the outer wall of the handle 1, the control switch 5 being used to control the opening and closing of the nozzle 4.

[0026] The outer wall of the end 3 is fitted with a rotating assembly 6, which includes an inner ring column 7 and an outer ring column 8. Both the inner ring column 7 and the outer ring column 8 are hollow cylinders. The inner ring column 7 is concentrically arranged with the end 3, and the inner ring wall of the inner ring column 7 is fixedly connected to the outer wall of the end 3. The outer ring column 8 is concentrically arranged with the inner ring column 7 and is rotatably connected to the inner ring column 7. The outer ring column 8 rotates around the axis of the inner ring column 7.

[0027] Four limiting blocks 9 are fixedly connected to the outer circumference of the inner ring column 7. The limiting blocks 9 are arc-shaped blocks, and the four limiting blocks 9 are evenly distributed in a circle with the axis of the inner ring column 7 as the center.

[0028] The inner wall of the outer ring column 8 is provided with a limiting groove 10 corresponding to each limiting block 9. The limiting groove 10 is an arc-shaped groove. The arc length of the limiting groove 10 is less than 1 / 4 of the inner diameter circumference of the outer ring column 8. The arc length of the limiting block 9 is 1 / 3 of the arc length of the limiting groove 10, thereby limiting the rotation angle of the outer ring column 8.

[0029] A shielding net 11 is fitted on the side of the outer wall of the outer ring post 8 away from the gun head 2. The shielding net 11 is a circular mesh structure. The inner ring wall of the shielding net 11 is fixedly connected to the outer ring post 8. The shielding net 11 and the outer ring post 8 are concentrically arranged. The shielding net 11 is used to block the hot particles splashed out when the cutting gun is cutting.

[0030] Four electric telescopic rods 12 are provided on the outer wall of the outer ring column 8. The four electric telescopic rods 12 are evenly distributed in a circle with the axis of the outer ring column 8 as the center.

[0031] Four electric telescopic rods 12 are vertically arranged. The fixed ends of the four electric telescopic rods 12 are fixedly connected to the outer wall of the outer ring column 8. The output ends of the four electric telescopic rods 12 face the nozzle 4. The output ends of the four electric telescopic rods 12 are all fixedly connected to the connecting rods 13 through the shielding net 11. The connecting rods 13 are concentrically arranged with the output shaft of the electric telescopic rods 12.

[0032] A control switch 2 14 is also provided on the outer wall of the gun handle 1. The control switch 2 14 is electrically connected to the four electric telescopic rods 12 and is used to control the extension and retraction of the output end of the electric telescopic rods 12 through the control switch 2 14.

[0033] Multiple stabilizing rings 15 are connected to the four connecting rods 13. The multiple stabilizing rings 15 are concentrically arranged with the outer ring post 8. The multiple stabilizing rings 15 are linearly arranged along the axial direction of the connecting rods 13. The multiple stabilizing rings 15 are all located on the side of the shielding net 11 away from the electric telescopic rod 12. They are used to connect the four connecting rods 13, thereby enhancing the stability between the four connecting rods 13 and protecting the nozzle 4 on the end 3 from damage by external forces.

[0034] A rotating column 16 is rotatably connected to the end of the connecting rod 13 away from the electric telescopic rod 12. The rotating column 16 is concentrically arranged with the connecting rod 13 and rotates around the axis of the connecting rod 13.

[0035] A groove 17 is provided on the side of the rotating column 16 away from the connecting rod 13. A ball 18 is movably connected in the groove 17. A circular groove 19 is provided on the two opposing sides of the inner wall of the groove 17 corresponding to the ball 18. The circular groove 19 is connected to the ball 18. The side of the ball 18 away from the rotating column 16 protrudes from the groove 17, thereby allowing the ball 18 to rotate on the surface of the workpiece.

[0036] Four marker rods 20 are fixedly connected to the mesh 11. The four marker rods 20 are evenly distributed in a circle with the center of the mesh 11 as the center. Each marker rod 20 is located in the middle position between two electric telescopic rods 12. It is used to assist the cutting torch in moving and cutting, and improve the cutting accuracy of the cutting torch.

[0037] In this embodiment, when it is necessary to cut the object, the output end of the electric telescopic rod 12 is extended by the control switch 14 according to the required thickness of the object, so that the ball 18 is pressed against the surface of the object, thereby accurately and stably controlling the distance between the nozzle 4 and the object, thereby improving the stability and accuracy of the jet cutting of the object.

[0038] Meanwhile, with the assistance of the markers 20 on the shielding net 11, the movement path of the nozzle 4 is controlled. During the movement of the nozzle 4, the spheres 18 on any two adjacent connecting rods 13 are always in contact with the surface of the object being cut, so that the nozzle 4 can still stably cut the object during the movement, thereby improving the cutting effect.

[0039] Example 2, based on Example 1, adds the following structure:

[0040] A cooling chamber 21 is provided inside the inner ring column 7. A liquid injection port 22 is provided on the inner ring column 7 along the axial direction and on the side close to the nozzle 2. The liquid injection port 22 is connected to the cooling chamber 21, and coolant is injected into the cooling chamber 21 through the liquid injection port 22.

[0041] In this embodiment, the heat generated by the nozzle 4 is transferred to the inner ring column 7 through the end 3. The heat is absorbed and cooled by the coolant, thereby achieving a cooling effect on the nozzle 4 and improving the working time and service life of the nozzle 4.

[0042] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A plasma cutting torch, characterized in that: The gun includes a handle (1), a head (2), and an end cap (3). A nozzle (4) is fixedly connected to the side of the end cap (3) away from the head (2). A control switch (5) is provided on the outer wall of the handle (1). A rotating assembly (6) is sleeved on the outer wall of the end cap (3). The rotating assembly (6) includes an inner ring post (7) and an outer ring post (8). The inner ring wall of the inner ring post (7) is fixedly connected to the outer wall of the end cap (3). The outer ring post (8) is rotatably connected to the inner ring post (7). Four electric telescopic rods (12) are provided on the outer wall of the outer ring post (8). The handle ( 1) Another control switch (14) is provided on the outer wall surface. The control switch (14) is electrically connected to four electric telescopic rods (12). The output ends of the four electric telescopic rods (12) face the nozzle (4). The output ends of the four electric telescopic rods (12) are fixedly connected to a connecting rod (13). The end of the connecting rod (13) away from the electric telescopic rod (12) is rotatably connected to a rotating column (16). The side of the rotating column (16) away from the connecting rod (13) is provided with a groove (17). A ball (18) is movably connected in the groove (17).

2. The plasma cutting torch according to claim 1, characterized in that: The inner ring column (7) has four limiting blocks (9) fixedly connected to its outer circumference. The inner wall of the outer ring column (8) has a limiting groove (10) corresponding to each limiting block (9).

3. A plasma cutting torch according to claim 2, characterized in that: The limiting block (9) is an arc-shaped block, and the four limiting blocks (9) are evenly distributed in a circle with the axis of the inner ring column (7) as the center.

4. A plasma cutting torch according to claim 3, characterized in that: The limiting groove (10) is an arc-shaped groove. The arc length of the limiting groove (10) is less than 1 / 4 of the inner diameter circumference of the outer ring column (8). The arc length of the limiting block (9) is 1 / 3 of the arc length of the limiting groove (10).

5. A plasma cutting torch according to claim 4, characterized in that: A shielding net (11) is fitted on the side of the outer wall of the outer ring post (8) away from the gun head (2), and the inner ring wall of the shielding net (11) is fixedly connected to the outer ring post (8).

6. A plasma cutting torch according to claim 1, characterized in that: Multiple stabilizing rings (15) are connected to the four connecting rods (13). The multiple stabilizing rings (15) are concentrically arranged with the outer ring column (8). The multiple stabilizing rings (15) are linearly arranged along the axial direction of the connecting rods (13). The multiple stabilizing rings (15) are all located on the side of the shielding net (11) away from the electric telescopic rod (12).

7. A plasma cutting torch according to claim 6, characterized in that: Four marker poles (20) are fixedly connected to the net (11). The four marker poles (20) are evenly distributed in a circle with the center of the net (11) as the center. Each marker pole (20) is located in the middle position between two electric telescopic poles (12).

8. A plasma cutting torch according to claim 7, characterized in that: A cooling chamber (21) is provided inside the inner ring column (7). An injection port (22) is provided on the inner ring column (7) along the axial direction and on the side close to the gun head (2). The injection port (22) is connected to the cooling chamber (21), and coolant is injected into the cooling chamber (21) through the injection port (22).

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