Adjustable cutting nozzle angle hand cutting torch
By designing a manual cutting gun with an adjustable nozzle angle, the problem of inconvenience caused by a fixed nozzle angle was solved, and the nozzle angle was flexibly adjusted, improving cutting efficiency and quality.
Patent Information
- Application Number
- CN202522114217.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-30
AI Technical Summary
The cutting nozzle angle of existing cutting torches is fixed and cannot be adjusted according to the needs of the site, resulting in inconvenience in use.
An adjustable nozzle angle hand-operated cutting torch was designed. The angle between the fixed part and the rotating part is controlled by fasteners to achieve flexible adjustment of the nozzle angle. The torch includes a cutting torch head, a fixed part and a rotating part. The arc-shaped design of the oxygen and mixed gas grooves and notches ensures the sealed connection of the gas channels.
It enables flexible adjustment of the cutting nozzle angle, improving cutting flexibility and efficiency, allowing cutting at different angles, saving time and improving cutting quality.
Smart Images
Figure CN224673969U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a manual cutting gun with an adjustable nozzle angle, belonging to the field of cutting equipment. Background Technology
[0002] Oxyacetylene cutting is a flame thermal cutting method that utilizes the high-temperature flame generated by the combustion of a mixture of oxygen and acetylene to cut metal. The cutting process consists of three stages: preheating, combustion, and slag removal. By adjusting the mixing ratio of oxygen and acetylene, three types of flames can be formed: carburizing flame, neutral flame, and oxidizing flame. Among them, the oxy-acetylene flame has the highest temperature, reaching approximately 3300℃, and is therefore commonly used for cutting. During cutting, the high-temperature flame brings the metal to its melting point, and then high-purity, high-speed oxygen is blown in, causing the metal to burn violently in the oxygen to generate oxides. Simultaneously, the kinetic energy of the high-pressure oxygen removes the oxides generated during combustion, achieving the purpose of cutting the metal. Currently, the cutting nozzle of the cutting torch is fixed to the torch body at a 90° angle. When cutting deep and narrow inner holes, it is particularly easy to damage the substrate, resulting in incomplete cutting of the inner hole. Sometimes, when the workpiece requires beveling, the angle must be manually adjusted, or the workpiece itself must be adjusted, to achieve the required angle, affecting cutting time and quality. Utility Model Content
[0003] The technical problem to be solved by this utility model is that the cutting nozzle angle of existing cutting guns is fixed and cannot be adjusted according to the needs of the site, which causes inconvenience in use.
[0004] The technical solution adopted by this utility model to solve its technical problem is: a manual cutting gun with an adjustable nozzle angle, including a cutting gun head and a fastener. The cutting gun head includes a fixed part and a rotating part. The front side wall of the fixed part is provided with an oxygen groove and a mixed gas groove, both of which are arc-shaped. The rear side wall of the rotating part is provided with an oxygen recess and a mixed gas recess, both of which are arc-shaped and their positions correspond to the oxygen groove and the mixed gas groove. The fixed part and the rotating part are rotatably connected. The fastener can control the included angle between the fixed part and the rotating part, and makes the front side wall of the fixed part and the rear side wall of the rotating part sealed together.
[0005] In the above-mentioned device, the oxygen groove and the mixed gas groove are arranged radially spaced apart, and the oxygen notch and the mixed gas notch are arranged radially spaced apart.
[0006] Furthermore, in the above-mentioned device, the fastener passes through the fixing part and the rotating part in sequence, and the insertion end is located at the center of the oxygen groove and the oxygen notch arc.
[0007] Furthermore, the fastener in the above device is a fastening screw, the rotating part is provided with a connecting hole, and the fixing part is provided with a fixing hole. The connecting hole is a through hole structure, and the fixing hole is a threaded hole structure. After the fastener passes through the connecting hole, it is screwed into the fixing hole and threadedly connected to the fixing part.
[0008] Furthermore, the fastener in the above device is a fastening bolt, the rotating part is provided with a connecting hole, and the fixing part is provided with a fixing hole. Both the connecting hole and the fixing hole are through holes. The screw of the fastener passes through the fixing part and the rotating part and is threadedly connected to the nut of the fastener.
[0009] Furthermore, in the above-mentioned device, the oxygen groove is located inside the gas mixture groove, and the oxygen inlet is located inside the gas mixture inlet.
[0010] The oxygen groove and / or oxygen notch in the above-mentioned device are semi-circular structures.
[0011] Furthermore, the gas mixing groove and / or gas mixing notch in the above device are semi-circular structures.
[0012] The oxygen groove and / or oxygen notch in the above-mentioned device have a semi-circular cross-section.
[0013] Furthermore, the cross-section of the gas mixture groove and / or gas mixture notch in the above-mentioned device is a semi-circular structure.
[0014] The beneficial effects of this invention are: the structure is simple and convenient to use, safe and reliable, and has a long service life. The cutting nozzle angle of this device can be adjusted by fasteners to change the angle between the fixed and rotating parts; the actual rotating part can rotate 270°. In actual use, if cutting objects in generally good positions is required, the nozzle can be adjusted to approximately 90°; if cutting in narrow and deep holes is required, the nozzle can be adjusted to an angle parallel to the cutting oxygen tube; if beveling is required, the nozzle can be adjusted to the desired angle for beveling without needing to adjust the workpiece angle, thus achieving the required bevel angle. This device saves cutting time and improves cutting quality, making workpiece cutting more flexible and significantly improving operational efficiency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model.
[0016] Figure 2 This is a schematic diagram of the main structure of this utility model.
[0017] Figure 3 This is a schematic diagram of the fixing part of this utility model.
[0018] Figure 4 This is a cross-sectional structural diagram of the fixing part of this utility model.
[0019] Figure 5 This is a schematic diagram of the rotating part of this utility model.
[0020] Figure 6 This is a schematic cross-sectional view of the rotating part of this utility model.
[0021] Figure 7 This is a schematic diagram of the rotating part of this utility model after rotation.
[0022] Figure 8 This is a schematic diagram of the structure of the rotating part of this utility model after a second rotation.
[0023] Figure 9 This is a schematic diagram of the structure of the rotating part of this utility model after three rotations.
[0024] Reference numerals: 1 is the head of the cutting torch, 11 is the fixing part, 111 is the fixing hole, 12 is the fastener, 13 is the rotating part, 131 is the connecting hole, 2 is the oxygen tube, 21 is the oxygen groove, 22 is the oxygen notch, 3 is the mixed gas tube, 31 is the mixed gas groove, 32 is the mixed gas notch, 4 is the acetylene tube, and 5 is the handle. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings.
[0026] like Figures 1 to 9As shown, this utility model discloses an adjustable nozzle angle hand cutter, including a cutter head 1 and a fastener 12. The cutter head 1 includes a fixing part 11 and a rotating part 13. The front side wall of the fixing part 11 is provided with an oxygen groove 21 and a mixed gas groove 31, both of which are arc-shaped. The rear side wall of the rotating part 13 is provided with an oxygen recess 22 and a mixed gas recess 32, both of which are arc-shaped and their positions correspond to the oxygen groove 21 and the mixed gas groove 31. The fixing part 11 and the rotating part 13 are rotatably connected. The fastener 12 can control the included angle between the fixing part 11 and the rotating part 13, and makes the front side wall of the fixing part 11 and the rear side wall of the rotating part 13 sealed together. Those skilled in the art will understand that the original cutting head 1 is preferably configured as a fixed part 11 and a rotating part 13 that are rotatably connected. The fixed part 11 is connected to the original oxygen pipe 2 and the mixed gas pipe 3, as well as the handle 5 and the acetylene pipe 4. An arc-shaped oxygen groove 21 and a mixed gas groove 31 are provided on the front side wall. The oxygen groove 21 should be connected to the oxygen pipe 2, and the mixed gas groove 31 should be connected to the mixed gas pipe 3. The rotating part 13 is used to fix the nozzle. Oxygen recess 22 and mixed gas recess 32 are provided on the rear side wall of the rotating part 13. Similarly, oxygen recess 22 and mixed gas recess 32 are respectively connected to the oxygen outlet and mixed gas outlet of the nozzle. The front side wall of the fixing part 11 and the rear side wall of the rotating part 13 are fitted together and sealed by fastener 12. That is, oxygen recess 21 is connected to oxygen recess 22 and mixed gas recess 31 is connected to mixed gas recess 32. The front side wall of the fixing part 11 and the rear side wall of the rotating part 13 are tightly fitted together by fastener 12 to achieve a sealed connection. Since the fixing part 11 and the rotating part 13 are actually made of copper, the front side wall of the fixing part 11 and the rear side wall of the rotating part 13 are actually pressed together by the fastener 12 to achieve a sealed connection between the front side wall of the fixing part 11 and the rear side wall of the rotating part 13. Meanwhile, in order to achieve the adjustment of the included angle between the rotating part 13 and the fixed part 11, it is preferable that the fixed part 11 and the rotating part 13 are rotatably connected. The front side wall of the fixed part 11 and the rear side wall of the rotating part 13 are the rotating surfaces of the fixed part 11 and the rotating part 13. The fastener 12 can control the included angle between the fixed part 11 and the rotating part 13, so that the fastener can actually control the included angle between the fixed part 11 and the rotating part 13, and can also make the front side wall of the fixed part 11 and the rear side wall of the rotating part 13 sealed together.
[0027] Preferably, in the above-described device, the oxygen groove 21 and the mixed gas groove 31 are arranged radially spaced apart, and the oxygen recess 22 and the mixed gas recess 32 are arranged radially spaced apart. Those skilled in the art will understand that, since the inlet end of the oxygen groove 21 is directly connected to the oxygen pipe 2, and the inlet end of the mixed gas groove 31 is connected to the mixed gas pipe 3, and the oxygen recess 22 and the mixed gas recess 32 are respectively connected to the oxygen outlet end and the mixed gas outlet end of the nozzle, and the positions of the oxygen recess 22 and the mixed gas recess 32 correspond to those of the oxygen groove 21 and the mixed gas groove 31, it is preferable that the oxygen groove 21 and the mixed gas groove 31 are arranged radially spaced apart, and the oxygen recess 22 and the mixed gas recess 32 are arranged radially spaced apart, in order to facilitate pipe arrangement on the fixing part 11 and the rotating part 13.
[0028] Preferably, in the above-described device, the fastener 12 passes sequentially through the fixing part 11 and the rotating part 13, with the insertion end located at the center of the arc of the oxygen groove 21 and the oxygen recess 22. Those skilled in the art will understand that, in order to ensure that the rotating part 13 rotates while the fixing part 11 and the rotating part 13 are fixed at their angles via the fastener 12, the oxygen groove 21 and the oxygen recess 22 remain connected, and the mixed gas groove 31 and the mixed gas recess 32 also remain connected. Therefore, in this device, the fastener 12 preferably passes sequentially through the fixing part 11 and the rotating part 13, with the insertion end located at the center of the arc of the oxygen groove 21 and the oxygen recess 22; that is, the fastener 12 is the rotation center of the fixing part 11 and the rotating part 13.
[0029] Preferably, in the above-described device, the fastener 12 is a fastening screw, the rotating part 13 is provided with a connecting hole 131, and the fixing part 11 is provided with a fixing hole 111. The connecting hole 131 is a through hole structure, and the fixing hole 111 is a threaded hole structure. The fastener 12 passes through the connecting hole 131 and is screwed into the fixing hole 111 to connect with the fixing part 11. Those skilled in the art will understand that this device only preferably uses a fastening screw for the fastener 12 to facilitate the connection between the fixing part 11 and the rotating part 13. In practice, the connecting hole 131 is provided on the rotating part 13, and the fixing hole 111 is provided on the fixing part 11. The connecting hole 131 and the fixing hole 111 should be located at the center of the arc of the oxygen groove 21 and the oxygen recess 22, which is also the center of the arc of the mixed gas groove 31 and the mixed gas recess 32. Further preferably, the connecting hole 131 is a through hole structure, and the fixing hole 111 is a threaded hole structure. The fastener 12 passes through the connecting hole 131 and is screwed into the fixing hole 111 to be threadedly connected to the fixing part 11.
[0030] Preferably, in the above-described device, the fastener 12 is a fastening bolt, the rotating part 13 is provided with a connecting hole 131, and the fixing part 11 is provided with a fixing hole 111. Both the connecting hole 131 and the fixing hole 111 are through holes. The screw of the fastener 12 passes through the fixing part 11 and the rotating part 13 and is threadedly connected to the nut of the fastener 12. Those skilled in the art will understand that this device only preferably uses a fastening bolt for the fastener 12 to facilitate the connection between the fixing part 11 and the rotating part 13. In practice, the connecting hole 131 is provided on the rotating part 13, and the fixing hole 111 is provided on the fixing part 11. The connecting hole 131 and the fixing hole 111 should be located at the center of the arc of the oxygen groove 21 and the oxygen recess 22, which is also the center of the arc of the mixed gas groove 31 and the mixed gas recess 32. Furthermore, it is even more preferable that both the connecting hole 131 and the fixing hole 111 are through holes, and the screw of the fastener 12 passes through the fixing part 11 and the rotating part 13 and is threadedly connected to the nut of the fastener 12.
[0031] Preferably, in the above-described device, the oxygen groove 21 is located inside the gas mixture groove 31, and the oxygen opening 22 is located inside the gas mixture opening 32. Those skilled in the art will understand that, therefore, for the convenience of pipe routing on the fixing part 11 and the rotating part 13, it is practically preferred that the oxygen groove 21 be located inside the gas mixture groove 31, and the oxygen opening 22 be located inside the gas mixture opening 32.
[0032] In the aforementioned device, the oxygen groove 21 and / or oxygen recess 22 are semi-circular structures. Those skilled in the art will understand that, in order to ensure that the opening ends of the oxygen groove 21 and the oxygen recess 22 are connected after the rotating part 13 rotates, the oxygen groove 21 and / or oxygen recess 22 are preferably semi-circular structures, and more preferably both the oxygen groove 21 and the oxygen recess 22 are semi-circular structures.
[0033] Preferably, the gas-mixing groove 31 and / or gas-mixing recess 32 in the above-described device are semi-circular structures. Those skilled in the art will understand that, in order to ensure that the opening ends of the gas-mixing groove 31 and gas-mixing recess 32 are connected after the rotating part 13 rotates, this device preferably has a semi-circular structure for the gas-mixing groove 31 and / or gas-mixing recess 32, and more preferably, both the gas-mixing groove 31 and gas-mixing recess 32 are semi-circular structures.
[0034] Preferably, the oxygen groove 21 and / or oxygen recess 22 in the above-mentioned device have a semi-circular cross-section. Those skilled in the art will understand that, for ease of manufacturing and to ensure stable gas flow, the oxygen groove 21 and / or oxygen recess 22 are preferably semi-circular in this device. More preferably, both the oxygen groove 21 and oxygen recess 22 are semi-circular, and their diameters are equal to the diameter of the oxygen tube 2.
[0035] Preferably, the cross-section of the gas mixing groove 31 and / or the gas mixing opening 32 in the above-mentioned device is a semi-circular structure. Those skilled in the art will understand that, for ease of manufacturing and to ensure stable gas flow, the gas mixing groove 31 and / or the gas mixing opening 32 are preferably semi-circular structures. More preferably, both the gas mixing groove 31 and the gas mixing opening 32 are semi-circular structures, and their diameters are equal to the diameter of the gas mixing pipe 3.
Claims
1. A manual cutting torch with an adjustable nozzle angle, comprising a torch head (1), characterized in that: It also includes a fastener (12). The cutting head (1) includes a fixed part (11) and a rotating part (13). The front side wall of the fixed part (11) is provided with an oxygen groove (21) and a mixed gas groove (31). The oxygen groove (21) and the mixed gas groove (31) are both arc-shaped. The rear side wall of the rotating part (13) is provided with an oxygen recess (22) and a mixed gas recess (32). The oxygen recess (22) and the mixed gas recess (32) are both arc-shaped and their positions correspond to the oxygen groove (21) and the mixed gas groove (31). The fixed part (11) and the rotating part (13) are rotatably connected. The fastener (12) can control the included angle between the fixed part (11) and the rotating part (13) and make the front side wall of the fixed part (11) and the rear side wall of the rotating part (13) sealed together.
2. The adjustable nozzle angle manual cutting gun according to claim 1, characterized in that: The oxygen groove (21) and the mixed gas groove (31) are arranged radially spaced apart, and the oxygen recess (22) and the mixed gas recess (32) are arranged radially spaced apart.
3. A manual cutting gun with an adjustable nozzle angle according to claim 2, characterized in that: The fastener (12) passes through the fixed part (11) and the rotating part (13) in sequence, and the insertion end is located at the center of the arc of the oxygen groove (21) and the oxygen notch (22).
4. A manual cutting gun with an adjustable nozzle angle according to claim 3, characterized in that: The fastener (12) is a fastening screw. The rotating part (13) is provided with a connecting hole (131), and the fixing part (11) is provided with a fixing hole (111). The connecting hole (131) is a through hole structure, and the fixing hole (111) is a threaded hole structure. The fastener (12) passes through the connecting hole (131) and is screwed into the fixing hole (111) to be threadedly connected to the fixing part (11).
5. A manual cutting gun with an adjustable nozzle angle according to claim 3, characterized in that: The fastener (12) is a fastening bolt. The rotating part (13) is provided with a connecting hole (131), and the fixing part (11) is provided with a fixing hole (111). Both the connecting hole (131) and the fixing hole (111) are through holes. The screw of the fastener (12) passes through the fixing part (11) and the rotating part (13) and is threadedly connected to the nut of the fastener (12).
6. A manual cutting gun with an adjustable nozzle angle according to claim 2, characterized in that: The oxygen groove (21) is located inside the mixed gas groove (31), and the oxygen opening (22) is located inside the mixed gas opening (32).
7. A manual cutting gun with an adjustable nozzle angle according to claim 1, characterized in that: The oxygen groove (21) and / or oxygen notch (22) are semi-circular structures.
8. A manual cutting gun with an adjustable nozzle angle according to claim 7, characterized in that: The gas mixing groove (31) and / or gas mixing opening (32) are semi-circular structures.
9. A manual cutting gun with an adjustable nozzle angle according to claim 1, characterized in that: The oxygen groove (21) and / or oxygen notch (22) have a semi-circular cross-section.
10. A manual cutting gun with an adjustable nozzle angle according to claim 9, characterized in that: The cross-section of the gas mixing groove (31) and / or gas mixing notch (32) is a semi-circular structure.