Self-suction non-pressure gasoline welding and cutting torch

Abstract

The utility model relates to the technical field of welding torches, and discloses a self-suction type non-pressure gasoline welding and cutting torch which comprises a welding and cutting torch body, an air inlet pipe is fixedly installed at the left end of the welding and cutting torch body, a welding nozzle is fixedly installed at the bottom end of the left side of the air inlet pipe, and a protection assembly is arranged on the outer side of the welding nozzle. According to the self-suction type non-pressure gasoline welding and cutting torch, through cooperation of a fixed heat insulation ring, a connecting rod, a connecting ring plate, a protective shell and a magnet, the outer side of a welding nozzle can be protected after the welding nozzle is used, and heat at the welding nozzle can be dissipated; according to the welding and cutting torch convenient to use, the welding nozzle which is just used is prevented from making contact with other objects or a user to cause negative effects, meanwhile, through cooperation of a fixing sleeve, a spring, a movable rod and a handle, when the welding nozzle needs to be used, the protective shell can be rapidly opened, limiting and fixing treatment is conducted, and the protective shell is prevented from affecting use of the welding and cutting torch.

Description

Technical Field

[0001] The utility model relates to the technical field of welding torches, in particular to a self-priming pressureless gasoline welding and cutting torch. Background Art

[0002] The pressureless gasoline cutting machine adopts the working principle of the suction cutting torch. The oxygen is transported to the cutting nozzle for atomization and mixed with oxygen in a certain proportion for ignition. It does not require electricity and does not need to pressurize the gasoline, which overcomes the tedious preparation work before use. The fuel tank does not need to be pressurized, and the operation is simple. It can change the welding and cutting angles at will, is not prone to oil leakage, oil dripping, fire failure, and gasping, and the welding and cutting nozzles are not prone to coking and carbon deposition. It has good cutting quality, fast speed, strong capacity, good energy-saving effect, safety and reliability, and does not backfire. It can still work when the oil belt is broken, and the fracture does not leak oil. It can work at high places.

[0003] However, during the actual use of the above-mentioned equipment, the welding nozzle of the welding torch becomes high in temperature due to the influence of the flame combustion after use. At this time, when the staff needs to move and place the welding torch, the welding nozzle is easy to contact other objects or personnel, causing adverse effects. If it is necessary to wait for the welding nozzle to cool down completely, it will take a lot of time, which will delay the production process and efficiency. In view of this, we propose a self-priming pressureless gasoline welding torch. Summary of the invention

[0004] The utility model aims to provide a self-priming pressureless gasoline welding and cutting torch to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a self-priming non-pressure gasoline welding and cutting torch, comprising a welding and cutting torch body, an air intake pipe is fixedly installed at the left end of the welding and cutting torch body, a welding nozzle is fixedly installed at the left bottom end of the air intake pipe, and a protective component is arranged on the outside of the welding nozzle, and the protective component comprises:

[0006] A fixed heat-insulating ring, wherein the fixed heat-insulating ring is fixedly mounted on the outside of the welding nozzle, a connecting rod is fixedly mounted on the outside of the fixed heat-insulating ring, a connecting ring plate is fixedly mounted on one end of the connecting rod away from the fixed heat-insulating ring, fixed sleeves are fixedly mounted on both left and right ends of the outside of the connecting ring plate, a spring is fixedly mounted on the inner wall surface of one side of the fixed sleeve close to the connecting ring plate, a moving rod is fixedly mounted on one end of the spring away from the connecting ring plate, and the moving rod can squeeze the spring when it moves toward the spring, so that the spring is compressed to generate elastic potential energy;

[0007] A protective shell, the protective shell is hinged at the bottom end of the connecting ring plate, the protective shell can rotate around the hinge, the outer surface of the protective shell is provided with a through hole, the bottom surface of the protective shell is provided with a vent hole, a magnet is fixedly mounted at the bottom end of the side surface of the protective shell close to the welding nozzle, and the protective shell is sleeved on the outside of the welding nozzle;

[0008] The handle is fixedly mounted on the bottom end of the surface of the protective shell away from the welding nozzle. The protective shell can be pulled by the handle to drive the protective shell to rotate.

[0009] Preferably, the fixed sleeve is sleeved on the outer side of the fixed thermal insulation ring.

[0010] Preferably, the outer wall of the movable rod and the inner wall of the fixed sleeve are in contact with each other.

[0011] Preferably, the magnet is embedded in the inner wall of the protective shell.

[0012] Preferably, the interior of the protective shell is connected to the outside air through the through holes and the air holes.

[0013] Preferably, a vertical plate is fixedly mounted on the upper surface of the movable rod, and a rubber pad is fixedly mounted on the bottom end of the surface of one side of the protective shell close to the welding nozzle.

[0014] Compared with the prior art, the utility model provides a self-priming pressureless gasoline welding and cutting torch, which has the following beneficial effects:

[0015] 1. The self-priming pressureless gasoline welding and cutting torch can protect the outer side of the welding nozzle after use through the cooperation of the set fixed insulation ring, connecting rod, connecting ring plate, protective shell and magnet, and allow the heat at the welding nozzle to be dissipated to prevent the welding nozzle from contacting other objects or users after use, causing adverse consequences. At the same time, through the cooperation of the set fixed sleeve, spring, moving rod and handle, the protective shell can be quickly opened when the welding nozzle needs to be used, and the protective shell can be limited and fixed to prevent the protective shell from rotating downward and falling during the use of the welding nozzle to affect the use of the welding and cutting torch. The operation is simple.

[0016] 2. The self-priming pressureless gasoline welding and cutting torch can enable the user to move the moving rods on both sides with one hand through the vertical plate, which simplifies the operation process and is convenient to use. The rubber pad can reduce the impact damage when the two protective shells are fitted together and extend the service life of the protective shells. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the utility model at A;

[0019] Figure 3 It is a schematic diagram of the structure of the protective component of the utility model;

[0020] Figure 4It is a schematic diagram of the structure of the utility model at B;

[0021] Figure 5 It is a schematic diagram of the structure of C of the utility model.

[0022] In the figure: 1. welding torch body; 2. air inlet pipe; 3. welding nozzle; 401. fixed insulation ring; 402. connecting rod; 403. connecting ring plate; 404. fixed sleeve; 405. spring; 406. moving rod; 407. protective shell; 408. through hole; 409. air vent; 410. magnet; 411. handle; 501. vertical plate; 502. rubber pad. DETAILED DESCRIPTION

[0023] like Figure 1-Figure 5 As shown, the utility model provides a technical solution: a self-priming pressureless gasoline welding and cutting torch, comprising a welding and cutting torch body 1, an air intake pipe 2 is fixedly installed on the left end of the welding and cutting torch body 1, a welding nozzle 3 is fixedly installed on the left bottom end of the air intake pipe 2, and a protective component is arranged on the outer side of the welding nozzle 3.

[0024] The protective component includes: a fixed insulation ring 401, a protective shell 407 and a handle 411. The fixed insulation ring 401 is fixedly installed on the outside of the welding nozzle 3. A connecting rod 402 is fixedly installed on the outside of the fixed insulation ring 401. A connecting ring plate 403 is fixedly installed on one end of the connecting rod 402 away from the fixed insulation ring 401. The fixed insulation ring 401 can insulate the heat dissipated by the welding nozzle 3 when working, so as to prevent a large amount of heat from reaching the connecting ring plate 403 through the connecting rod 402.

[0025] Fixed sleeves 404 are fixedly installed on both left and right ends of the outer side of the connecting ring plate 403, and the fixed sleeve 404 is sleeved on the outer side of the fixed insulation ring 401. A spring 405 is fixedly installed on the inner wall surface of one side of the fixed sleeve 404 close to the connecting ring plate 403, and a moving rod 406 is fixedly installed on the end of the spring 405 away from the connecting ring plate 403. The outer wall of the moving rod 406 and the inner wall of the fixed sleeve 404 are in contact with each other. The inner wall of the fixed sleeve 404 can guide and limit the movement of the moving rod 406, so that the moving rod 406 can only perform linear motion in the left and right directions. When the moving rod 406 moves toward the inside of the fixed sleeve 404, it can squeeze the spring 405.

[0026] The protective shell 407 is hinged at the bottom end of the connecting ring plate 403. There are two protective shells 407. The two protective shells 407 are hinged at the left and right ends of the bottom surface of the connecting ring plate 403 in a mirror structure. When the two protective shells 407 are in a vertical state, they can fit together to protect the outside of the welding tip 3 to prevent the welding tip 3 from contacting other objects or users when the temperature is too high after welding is completed, causing adverse consequences. A through hole 408 is provided on the outer surface of the protective shell 407, and an air hole 409 is provided on the bottom surface of the protective shell 407. The interior of the protective shell 407 is connected to the outside air through the through hole 408 and the air hole 409. When the protective shell 407 wraps and protects the welding tip 3, the heat on the welding tip 3 can be slowly discharged through the through hole 408 and the air hole 409 to prevent the heat from being continuously enclosed in the protective shell 407 and unable to dissipate, thereby affecting the service life of the welding tip 3.

[0027] A magnet 410 is fixedly installed at the bottom of the side surface of the protective shell 407 close to the welding nozzle 3. The magnet 410 is embedded in the inner wall of the protective shell 407. The magnetic poles of the ends of the magnets 410 on the two protective shells 407 that are close to each other are similar. When the two protective shells 407 are attached, the magnet 410 can limit and fix the two protective shells 407. The handle 411 is fixedly installed at the bottom of the side surface of the protective shell 407 away from the welding nozzle 3. When the welding nozzle 3 needs to be used, the protective shell 407 can be pulled by the handle 411, so that the two protective shells 407 is separated, and after separation, the protective shell 407 is rotated to a horizontal state, and then the moving rod 406 is pushed into the fixed sleeve 404 and the spring 405 is compressed. When the protective shell 407 is rotated to a horizontal state, the moving rod 406 is released, and the moving rod 406 can be ejected from the fixed sleeve 404 under the action of the elastic potential energy of the spring 405, so that the moving rod 406 will enter the handle 411, and the handle 411 and the protective shell 407 are limited and fixed to prevent the protective shell 407 from falling off during the use of the welding nozzle 3 and affecting welding and cutting.

[0028] A vertical plate 501 is fixedly installed on the upper surface of the moving rod 406. The staff can pull the moving rod 406 through the vertical plate 501 to facilitate the movement of the moving rod 406. When the moving rod 406 needs to be moved, the vertical plates 501 on both sides can be pinched with one hand for easy operation. A rubber pad 502 is fixedly installed on the bottom end of the surface of one side of the protective shell 407 close to the welding nozzle 3. The thickness of the rubber pad 502 exceeds the protective shell 407. When the two protective shells 407 are fitted together, the rubber pad 502 can cushion the impact of the two protective shells 407 to avoid impact damage.

[0029] In the present invention, when the welding tip 3 needs to be used, the protective shell 407 can be pulled apart by the handle 411 to open the welding tip 3, and then the protective shell 407 is rotated to a horizontal state. During the rotation, the vertical plates 501 on both sides are pinched to drive the moving rod 406 to move inside the fixed sleeve 404. When the rotating protective shell 407 is rotated to a horizontal state, the vertical plates 501 are released, so that the moving rod 406 pops outward under the elastic potential energy of the spring 405 and enters the inside of the handle 411, The protective shell 407 is limited and fixed to prevent the protective shell 407 from falling downward during the use of the welding tip 3, thereby affecting the use of the welding tip 3. After the welding tip 3 is used, the movable rod 406 can be pulled into the fixed sleeve 404 through the vertical plate 501 to release the fixation of the handle 411, so that the protective shell 407 can be flipped to a vertical state under the action of its own gravity, and the outer side of the welding tip 3 is protected. When the two protective shells 407 are attached, the magnet 410 can fix and limit the protective shells 407 on both sides to complete the protection.

[0030] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A self-priming non-pressure gasoline welding and cutting torch, comprising a welding and cutting torch body (1), an air intake pipe (2) being fixedly mounted on the left end of the welding and cutting torch body (1), and a welding nozzle (3) being fixedly mounted on the left bottom end of the air intake pipe (2), characterized in that: A protective component is provided on the outer side of the welding nozzle (3), and the protective component comprises: A fixed heat-insulating ring (401), the fixed heat-insulating ring (401) being fixedly mounted on the outside of the welding nozzle (3), a connecting rod (402) being fixedly mounted on the outside of the fixed heat-insulating ring (401), a connecting ring plate (403) being fixedly mounted on one end of the connecting rod (402) away from the fixed heat-insulating ring (401), a fixed sleeve (404) being fixedly mounted on both left and right ends of the outside of the connecting ring plate (403), a spring (405) being fixedly mounted on the inner wall surface of one side of the fixed sleeve (404) close to the connecting ring plate (403), and a moving rod (406) being fixedly mounted on one end of the spring (405) away from the connecting ring plate (403); A protective shell (407), the protective shell (407) being hinged to the bottom end of the connecting ring plate (403), a through hole (408) being provided on the outer surface of the protective shell (407), a vent hole (409) being provided on the bottom surface of the protective shell (407), and a magnet (410) being fixedly mounted on the bottom end of a side surface of the protective shell (407) close to the welding nozzle (3); A handle (411) is fixedly mounted on the bottom end of a surface of a side of the protective shell (407) away from the welding nozzle (3).

2. A self-priming pressureless gasoline welding and cutting torch according to claim 1, characterized in that: The fixed sleeve (404) is sleeved on the outside of the fixed heat insulation ring (401).

3. A self-priming pressureless gasoline welding and cutting torch according to claim 1, characterized in that: The outer wall of the movable rod (406) and the inner wall of the fixed sleeve (404) fit together.

4. A self-priming pressureless gasoline welding and cutting torch according to claim 1, characterized in that: The magnet (410) is embedded in the inner wall of the protective shell (407).

5. A self-priming pressureless gasoline welding and cutting torch according to claim 1, characterized in that: The interior of the protective shell (407) is connected to the outside air via the through hole (408) and the air vent (409).

6. A self-priming pressureless gasoline welding and cutting torch according to claim 1, characterized in that: A vertical plate (501) is fixedly mounted on the upper surface of the moving rod (406), and a rubber pad (502) is fixedly mounted on the bottom end of a surface of one side of the protective shell (407) close to the welding nozzle (3).

Images