Heat insulation structure for cutting gun

Abstract

The utility model discloses a heat insulation structure for a cutting gun, and relates to the technical field of cutting guns, a cutting gun barrel is sequentially provided with an inner hollow pipe and an outer hollow pipe from inside to outside in the pipeline direction of the cutting gun barrel, the inner hollow pipe and the outer hollow pipe are integrally screwed through a positioning bolt, a heat insulation inner pipe is arranged between every two adjacent supporting ring sleeves, and a heat insulation outer pipe is arranged between every two adjacent supporting ring sleeves. According to the heat insulation structure of the cutting gun, the cutting gun barrel is sequentially and annularly sleeved with the inner hollow-out pipe and the outer hollow-out pipe, the cutting gun barrel is fixed through a rotary knob of a positioning bolt, the heat insulation structure in an integrated installation form is formed, and then heat insulation protection of the inner hollow-out pipe and anti-collision protection of the outer hollow-out pipe are utilized; the inner hollow-out pipe, the outer hollow-out pipe and the cutting gun pipe are integrally combined, stress is more stable due to integral assembly, stress is more uniform when the cutting gun pipe is impacted by the outside, and the protection effect is better.

Description

Technical Field

[0001] This utility model relates to the field of cutting guns, and in particular to a heat insulation structure for cutting guns. Background Technology

[0002] The cutting torch utilizes the heat of a high-temperature plasma arc to locally melt the metal at the workpiece's cut edge, and then uses the momentum of high-speed plasma to expel the molten metal to form a kerf. It is suitable for cutting various metal materials and features high cutting speed and high precision. Because the barrel of the plasma cutting torch is subject to high-speed plasma movement inside, its temperature is relatively high. Therefore, a heat insulation layer is usually required on the outer wall of the barrel. As shown in the heat insulation structure of a cutting torch disclosed on the China Patent Network (publication announcement number CN213560475U), this type of device effectively achieves heat insulation of the cutting torch by setting a heat insulation perforated tube on the cutting torch, resulting in good heat insulation effect.

[0003] However, the heat insulation structures for cutting guns mentioned in the aforementioned patents and those currently used in the market still have some shortcomings: existing heat insulation structures for cutting guns using a cylindrical hollow structure, while providing insulation through a single structure, offer relatively limited overall insulation and protection, and are poor in terms of self-protection against external impacts and knocks. Therefore, those skilled in the art have provided a heat insulation structure for cutting guns to address the problems mentioned in the background section. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a heat insulation structure for cutting guns, which solves the problem mentioned in the background art that the existing heat insulation structures for cutting guns have poor self-collision and anti-collision protection effects.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat insulation structure for a cutting gun, comprising a cutting gun barrel;

[0006] The cutting gun barrel is provided with an inner hollow tube and an outer hollow tube from the inside to the outside along its pipeline direction, and the inner hollow tube and the outer hollow tube are screwed together by positioning bolts.

[0007] The inner hollow tube includes multiple sets of support rings arranged in one piece, and a heat-insulating inner tube is provided between two adjacent sets of support rings.

[0008] The outer hollow tube includes multiple sets of pressure-bearing rings arranged in one piece, and a heat dissipation outer tube is provided between each two adjacent sets of pressure-bearing rings.

[0009] As a further technical solution of this utility model: the heat insulation inner tube is a circular hollow tube structure.

[0010] As a further technical solution of this utility model: the heat dissipation outer tube is a diamond-shaped hollow tube structure, and the heat dissipation outer tube is provided with multiple sets of outwardly extending anti-collision protrusions in the circumferential arrangement.

[0011] As a further technical solution of this utility model: the number of the support ring sleeve and the pressure bearing ring sleeve are the same, and the support ring sleeve and the pressure bearing ring sleeve are one to one opposite each other.

[0012] As a further technical solution of this utility model: the inner diameter of the support ring sleeve is similar to the outer diameter of the cutting gun barrel, and the outer diameter of the support ring sleeve is adapted to the inner diameter of the pressure bearing ring sleeve.

[0013] As a further technical solution of this utility model: the pressure bearing rings at the upper and lower ends are provided with multiple sets of second threaded holes arranged in their circumference, and the support rings at the upper and lower ends are provided with multiple sets of first threaded holes arranged in their circumference. The second threaded holes and the first threaded holes overlap and face each other, and the mating ends of the second threaded holes and the first threaded holes are screwed together with the positioning bolts.

[0014] This utility model provides a heat insulation structure for a cutting gun, which has the following advantages compared with the prior art:

[0015] The heat insulation structure of this cutting gun is based on the sequential ringing of the inner and outer hollow tubes around the cutting gun barrel, and is fixed by the knobs of the positioning bolts to form an integrated heat insulation structure. The inner hollow tube provides heat insulation protection, while the outer hollow tube provides impact protection, achieving a dual effect of heat insulation and impact protection. Furthermore, the integrated combination of the inner and outer hollow tubes with the cutting gun barrel makes the overall assembly more stable under stress, resulting in more uniform stress distribution and better protection when subjected to external impacts. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a heat insulation structure for a cutting gun.

[0017] Figure 2 A partial cross-sectional view of a heat insulation structure for a cutting gun;

[0018] Figure 3 This is a schematic diagram of a heat insulation structure for a cutting gun.

[0019] Figure 4 This is a schematic diagram of the internal hollow tube in a heat insulation structure for a cutting gun.

[0020] Figure 5 This is a schematic diagram of the outer hollow tube in a heat insulation structure for a cutting gun;

[0021] Figure 6 This is a planar schematic diagram of the outer hollow tube in a heat insulation structure for a cutting gun.

[0022] In the diagram: 1. Cutting gun barrel; 2. Inner hollow tube; 21. Support ring sleeve; 22. Insulating inner tube; 23. First threaded hole; 3. Outer hollow tube; 31. Pressure bearing ring sleeve; 32. Heat dissipation outer tube; 33. Second threaded hole; 34. Anti-collision flange; 4. Positioning bolt. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-6 This utility model provides a heat insulation structure for a cutting gun: a heat insulation structure for a cutting gun includes a cutting gun barrel 1. The cutting gun barrel 1 has an inner hollow tube 2 and an outer hollow tube 3 arranged sequentially from the inside to the outside along its pipe direction. The inner hollow tube 2 and the outer hollow tube 3 are integrally screwed together by positioning bolts 4. The inner hollow tube 2 includes multiple sets of support rings 21 integrally arranged, and the outer hollow tube 3 includes multiple sets of pressure-bearing rings 31 integrally arranged. The pressure-bearing rings 31 at both the upper and lower ends have multiple sets of support rings 21 arranged circumferentially. The upper and lower end support rings 21 have multiple sets of first threaded holes 23 arranged circumferentially. The second threaded holes 33 overlap with the first threaded holes 23 and the mating ends of the second threaded holes 33 and the first threaded holes 23 are screwed into the positioning bolts 4. By using the thread fit between the positioning bolts 4 and the first threaded holes 23 and the second threaded holes 33, the inner hollow tube 2 and the outer hollow tube 3 are screwed together as a whole and screwed into the cutting gun barrel 1 to form a stable integrated assembly.

[0025] The number of support rings 21 and pressure rings 31 is the same, and the support rings 21 and pressure rings 31 are one-to-one opposite each other. The inner diameter of the support ring 21 is similar to the outer diameter of the cutting gun barrel 1, and the outer diameter of the support ring 21 is compatible with the inner diameter of the pressure ring 31. By fitting the support rings 21 and pressure rings 31 one-to-one and assembling them as a whole on the cutting gun barrel 1, the cutting gun barrel 1, the inner hollow tube 2, and the outer hollow tube 3 form a whole assembly. When subjected to external impact, the impact force is smoothly transferred to the heat insulation structure and the cutting gun barrel 1, avoiding single-point force that may cause impact damage or knocking.

[0026] Each of the two adjacent sets of support rings 21 is provided with a heat-insulating inner tube 22. The heat-insulating inner tube 22 is a circular hollow tube structure. By setting the inner hollow tube 2 to a circular hollow tube structure, it can not only achieve the heat insulation effect, but also conduct heat and dissipate the heat transferred to the inner hollow tube 2.

[0027] A heat dissipation outer tube 32 is provided between each of the two adjacent sets of pressure-bearing rings 31. The heat dissipation outer tube 32 has a diamond-shaped hollow tube structure, and multiple sets of outwardly extending anti-collision convex edges 34 are arranged circumferentially on the heat dissipation outer tube 32. By setting the outer hollow tube 3 to a diamond-shaped hollow tube structure and setting outwardly extending anti-collision convex edges 34 on its hollow tube, the diamond-shaped hollow tube structure not only has a heat dissipation effect, but the combination of the diamond-shaped hollow tube structure and the anti-collision convex edges 34 also has good pressure resistance and deformation buffering characteristics, thus playing an anti-collision protection role.

[0028] The working principle of this utility model is as follows: When the heat insulation structure is used to insulate the cutting gun barrel 1, the combination of the inner hollow tube 2 and the outer hollow tube 3 is sequentially inserted into the cutting gun barrel 1, and the first threaded hole 23 and the second threaded hole 33 at the upper and lower ends of the tube are aligned and opposite each other. Then, the positioning bolt 4 is used to match the threads of the first threaded hole 23 and the second threaded hole 33 to screw the combination of the inner hollow tube 2 and the outer hollow tube 3 together and screw it into the cutting gun barrel 1 to form a stable integrated assembly state.

[0029] In subsequent assembly and use of the heat insulation structure, the inner hollow tube 2, based on the circular hollow tube structure, not only provides heat insulation for the cutting gun barrel 1, but also conducts and dissipates the heat transferred to the inner hollow tube 2. Furthermore, the outer hollow tube 3, based on the diamond hollow tube structure, with an outwardly extending anti-collision protrusion 34 on its hollow tube, further enhances the heat dissipation effect. The combination of the diamond hollow tube structure and the anti-collision protrusion 34 also has good pressure resistance and deformation buffering characteristics, playing an anti-collision protection role. When subjected to external impact, it evenly transfers the impact force to the heat insulation structure and the cutting gun barrel 1, avoiding single-point force that could lead to impact damage or knocking, thus improving the self-impact resistance of the heat insulation structure and the anti-collision protection of the cutting gun barrel 1.

[0030] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A heat insulation structure for a cutting gun, characterized in that, Including cutting the gun barrel (1); The cutting gun barrel (1) is provided with an inner hollow tube (2) and an outer hollow tube (3) in sequence from the inside to the outside along its pipeline direction, and the inner hollow tube (2) and the outer hollow tube (3) are screwed together by a positioning bolt (4); The inner hollow tube (2) includes multiple sets of support rings (21) arranged in one piece, and a heat-insulating inner tube (22) is provided between two adjacent sets of support rings (21); The outer hollow tube (3) includes multiple sets of pressure-bearing rings (31) arranged in an integral manner, and a heat dissipation outer tube (32) is provided between two adjacent sets of pressure-bearing rings (31).

2. The heat insulation structure for a cutting gun according to claim 1, characterized in that, The heat-insulating inner tube (22) has a circular hollow tube structure.

3. The heat insulation structure for a cutting gun according to claim 1, characterized in that, The heat dissipation outer tube (32) has a diamond-shaped hollow tube structure, and multiple sets of anti-collision protrusions (34) extending outward are arranged in the circumferential direction of the heat dissipation outer tube (32).

4. The heat insulation structure for a cutting gun according to claim 1, characterized in that, The number of the support rings (21) and the pressure rings (31) are the same, and the support rings (21) and the pressure rings (31) are one-to-one opposite each other.

5. The heat insulation structure for a cutting gun according to claim 1, characterized in that, The inner diameter of the support ring (21) is similar to the outer diameter of the cutting gun barrel (1), and the outer diameter of the support ring (21) is adapted to the inner diameter of the pressure ring (31).

6. The heat insulation structure for a cutting gun according to claim 1, characterized in that, The pressure-bearing rings (31) at both ends are provided with multiple sets of second threaded holes (33) arranged in their circumference, and the support rings (21) at both ends are provided with multiple sets of first threaded holes (23) arranged in their circumference. The second threaded holes (33) and the first threaded holes (23) overlap and face each other, and the mating ends of the second threaded holes (33) and the first threaded holes (23) are screwed together with the positioning bolts (4).

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