Welding and cutting gun nozzle convenient to replace

Abstract

The utility model relates to the field of welding and cutting gun accessories, in particular to a welding and cutting gun nozzle convenient to replace, which comprises a spray pipe, a nozzle connecting sleeve is mounted on one side of the spray pipe through a limiting groove in a clamping manner, a nozzle is fixedly mounted at one end of the nozzle connecting sleeve, a plurality of adjusting grooves are formed in the upper part of the spray pipe, and jacking reeds are mounted in the adjusting grooves in a limiting manner. The push piece is connected to the spray pipe in a sleeving mode, and a rotating ring is arranged on the side, away from the push piece, of the push piece. According to the utility model, the jacking reed arranged at the upper part of the spray pipe is matched with the rotating ring and the pushing piece to rotate, extrude and push, so that stable jacking force can be provided through the raised jacking reed when the spray pipe is connected with the welding and cutting gun, and the stability of the spray pipe and the welding and cutting gun is ensured; and the overall disassembly convenience and the service life of the nozzle are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding and cutting gun accessories, in particular to a welding and cutting gun nozzle which is easy to replace. Background Art

[0002] A welding torch is a gas cutting tool, also called a cutting torch or cutting gun. Its main function is to mix combustible gas and oxygen in the cutting torch to form a preheating flame with a certain heat energy and shape, and to eject a high-pressure oxygen flow from the center of the preheating flame to perform gas cutting.

[0003] The nozzle is a protective mechanism for the head of the welding gun, but during welding, a large amount of spatter is easily attached to the inner wall of the nozzle, causing the nozzle to be damaged and replaced. After a period of use, it will be eroded by high temperature, gas impact, and impurities such as welding slag, causing wear and corrosion on the inner wall of the nozzle. Currently, traditional nozzles are usually connected by threads, and the disassembly process often requires the use of tools. Unnecessary damage is easily caused during the twisting process, and multiple replacements will cause damage to the external thread at the top thread. Therefore, there is an urgent need for a welding gun nozzle that is easy to replace. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a welding and cutting gun nozzle which is easy to replace.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A welding gun nozzle that is easy to replace comprises a nozzle pipe, one side of the nozzle pipe is clamped with a nozzle connecting sleeve through a limiting groove, one end of the nozzle connecting sleeve is fixedly mounted with a nozzle, and a plurality of adjustment grooves are provided at the upper part of the nozzle pipe, a tightening spring sheet is limitedly installed in the adjusting groove, the other end of the tightening spring sheet is fixedly connected with a push sheet, the push sheet is sleeved on the nozzle pipe, and a rotating ring is provided on the side away from the push sheet.

[0007] In addition, a preferred structure is that a connecting nozzle is fixedly installed at one end of the nozzle.

[0008] In addition, a preferred structure is that a threaded wall is provided on one side of the tube wall of the nozzle, a rotating ring is screwed onto the threaded wall, and a corresponding thread is provided on the inner wall of the rotating ring.

[0009] In addition, a preferred structure is that a tightening spring is fixedly installed at one end inside the adjusting groove, a protrusion is provided on the side of the tightening spring close to the connecting mouth, and the other end is embedded in the adjusting groove and connected to the push piece.

[0010] In addition, a preferred structure is that the push piece is sleeve-slidably mounted on the nozzle body, and the other side of the push piece is in extrusion contact with the rotating ring.

[0011] In addition, a preferred structure is that limiting paddles are movably installed on both sides of the nozzle connecting sleeve, a paddle groove is provided on the outer side of the limiting paddle, a wedge block is provided on the inner wall, and a built-in steel sheet is fixedly installed inside the limiting paddle.

[0012] In addition, a preferred structure is that when the nozzle connecting sleeve is connected to the nozzle, the wedge block is locked with the limiting groove formed on the outer wall of the nozzle.

[0013] The beneficial effects of the utility model are:

[0014] In the utility model, a tightening spring sheet arranged on the upper part of the nozzle cooperates with the rotating ring and the pushing plate to rotate, squeeze and push, so that when the nozzle is connected to the welding gun, a stable pressing pressure can be provided by the raised tightening spring sheet, thereby ensuring the stability of both. At the same time, the nozzle can be freely disassembled through the nozzle connecting sleeve, which effectively improves the overall disassembly convenience and service life of the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a welding and cutting gun nozzle that is easy to replace proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of a welding and cutting gun nozzle that is easy to replace proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of a welding and cutting gun nozzle that is easy to replace proposed by the utility model;

[0018] Figure 4 The utility model discloses a structural schematic diagram of a welding and cutting gun nozzle which is easy to replace.

[0019] In the figure: 1 nozzle, 2 nozzle connecting sleeve, 3 nozzle, 4 limit paddle, 41 paddle groove, 5 tightening spring, 6 connecting nozzle, 7 threaded wall, 8 push piece, 9 rotating ring, 10 wedge block, 11 limit groove, 12 built-in steel sheet, 13 adjustment groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-4A welding gun nozzle that is easy to replace includes a nozzle pipe 1, a nozzle connecting sleeve 2 is clamped and installed on one side of the nozzle pipe 1 through a limiting groove 11, a nozzle 3 is fixedly installed on one end of the nozzle connecting sleeve 2, and a plurality of adjusting grooves 13 are opened at the upper part of the nozzle pipe 1, a tightening spring sheet 5 is limitedly installed in the adjusting groove 13, the other end of the tightening spring sheet 5 is fixedly connected to a push sheet 8, the push sheet 8 is sleeved on the nozzle pipe 1, and a rotating ring 9 is provided on the side away from the push sheet 8.

[0022] Furthermore, a connecting nozzle 6 is fixedly mounted on one end of the nozzle 1 .

[0023] Furthermore, a threaded wall 7 is provided on one side of the tube wall of the nozzle 1, and a rotating ring 9 is screwed on the threaded wall 7. The inner wall of the rotating ring 9 is provided with a corresponding thread. The rotating pushing function of the rotating ring 9 is realized by the setting of the thread and the threaded wall 7, thereby realizing the extrusion of the tightening spring 5.

[0024] Furthermore, a tightening spring 5 is fixedly installed at one end inside the adjusting groove 13, and a protrusion is provided on the side of the tightening spring 5 close to the connecting nozzle 6, and the other end is embedded in the adjusting groove 13 and connected to the push piece 8. The push piece 8 will squeeze the tightening spring 5 under the pushing action of the rotating ring 9, so that one end of the tightening spring 5 is raised, thereby improving the connection performance with the welding gun.

[0025] Furthermore, the push piece 8 is sleeve-slidably mounted on the tube body of the nozzle 1 , and the other side of the push piece 8 is in compression contact with the rotating ring 9 .

[0026] Furthermore, the two sides of the nozzle connecting sleeve 2 are movably installed with limit paddles 4, the outer side of the limit paddles 4 is provided with a paddle groove 41, the inner wall is provided with a wedge block 10, and the inner part of the limit paddles 4 is fixedly installed with a built-in steel sheet 12.

[0027] Furthermore, when the nozzle connecting sleeve 2 is connected to the nozzle 1 , the wedge block 10 is locked with the limiting groove 11 formed on the outer wall of the nozzle 1 .

[0028] In this embodiment, a connecting nozzle 6 is provided on one side of the nozzle 1, and the connecting nozzle 6 is connected to the welding gun, and the nozzle 1 is inserted into the connection of the welding gun. At this time, the raised section of the tightening spring 5 is slightly pressed against the pipe wall at the connection, and then the rotating ring 9 is rotated. The rotating ring 9 is spirally rotated through the threaded wall 7 provided on the nozzle 1, and the rotating ring 9 rotates forward and presses the push piece 8 on the other side. After receiving the thrust of the rotating ring 9, the push piece 8 moves toward the side of the connecting nozzle 6. The push piece 8 squeezes and deforms the tightening spring 5, so that the raised section of the tightening spring 5 further extends outward and further presses against the connecting pipe wall, thereby improving the stability of the connection between the two. At the same time, the thread setting can ensure the tightening performance and prevent loosening.

[0029] At the same time, the nozzle 3 is connected to the nozzle 1 through the nozzle connecting sleeve 2. A limiting groove 11 for clamping is provided on the nozzle 1. The limiting groove 11 is locked with the limiting paddle 4 provided in the nozzle connecting sleeve 2. A wedge block 10 is provided on the inner wall of the limiting paddle 4. The wedge block 10 is effectively locked and clamped with the limiting groove 11. By picking the paddle groove 41 on the limiting paddle 4, the limiting paddle 4 can be picked outward and the wedge block 10 can be separated from the limiting groove 11. Then, the nozzle 3 can be disassembled by moving the nozzle connecting sleeve 2.

[0030] In the actual use process, the built-in steel sheet 12 ensures the overall rigidity of the limiting paddle 4 , so that it can ensure that the wedge block 10 is stably clamped in the limiting groove 11 .

[0031] In the utility model, the tightening spring piece 5 provided on the upper part of the nozzle 1 cooperates with the rotating ring 9 and the pushing piece 8 to rotate, squeeze and push, so that when the nozzle 1 is connected to the welding gun, the raised tightening spring piece 5 can provide a stable pressing pressure to ensure the stability of both. At the same time, the nozzle 3 can be freely disassembled through the nozzle connecting sleeve 2, which effectively improves the overall disassembly convenience and service life of the nozzle.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A welding gun nozzle that is easy to replace, comprising a nozzle (1), characterized in that: A nozzle connecting sleeve (2) is clamped and installed on one side of the nozzle pipe (1) through a limiting groove (11), a nozzle (3) is fixedly installed on one end of the nozzle connecting sleeve (2), and a plurality of adjustment grooves (13) are provided on the upper part of the nozzle pipe (1), a tensioning spring sheet (5) is limitedly installed in the adjustment groove (13), the other end of the tensioning spring sheet (5) is fixedly connected to a push sheet (8), the push sheet (8) is sleeved on the nozzle pipe (1), and a rotating ring (9) is provided on the side away from the push sheet (8).

2. The easily replaceable welding gun nozzle according to claim 1, characterized in that: A connecting nozzle (6) is fixedly mounted on one end of the nozzle (1).

3. The easily replaceable welding gun nozzle according to claim 1, characterized in that: A threaded wall (7) is provided on one side of the pipe wall of the nozzle (1), a rotating ring (9) is screwed onto the threaded wall (7), and a corresponding thread is provided on the inner wall of the rotating ring (9).

4. The easily replaceable welding gun nozzle according to claim 1, characterized in that: A tensioning spring (5) is fixedly mounted at one end of the adjusting groove (13), a protrusion is provided on one side of the tensioning spring (5) close to the connecting nozzle (6), and the other end is embedded in the adjusting groove (13) and connected to the push piece (8).

5. The easily replaceable welding gun nozzle according to claim 1, characterized in that: The push piece (8) is sleeve-connected and slidably mounted on the nozzle (1) body, and the other side of the push piece (8) is in extrusion contact with the rotating ring (9).

6. The easily replaceable welding gun nozzle according to claim 1, characterized in that: The two sides of the nozzle connection sleeve (2) are movably mounted with limit paddles (4), the outer side of the limit paddles (4) is provided with a paddle groove (41), the inner wall is provided with a wedge block (10), and a built-in steel sheet (12) is fixedly mounted inside the limit paddles (4).

7. The easily replaceable welding gun nozzle according to claim 1, characterized in that: When the nozzle connecting sleeve (2) is connected to the nozzle pipe (1), the wedge block (10) is locked in a locking manner with a limiting groove (11) provided on the outer wall of the nozzle pipe (1).

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