A hand-held small welding machine with a quick detachable welding gun head

Abstract

The utility model discloses a handheld small -size welding machine of quick dismounting and changing welding torch head, including organism, is seted up with the mounting groove to the organism, the detachable connection has the torch head in the mounting groove, is located the movable cavity below the mounting groove and is seted up with the through -hole between movable cavity and mounting groove, the convex piece of extension in movable cavity is slidably connected with the mounting groove, the round hole of being convenient for flame is seted up to the convex piece, the convex piece and torch head bottom all fixed magnetic sheet, so when replacing torch head, the torch head is moved outward to make two pieces of magnetic sheet separate, and when installing, with the approach of torch head, the convex piece slides up to enter the installation cavity and is inhaled with the magnetic sheet on torch head, the torch head is fixed in the mounting groove to complete the assembly, and the design makes the replacement and assembly of torch head more convenient and fast, and it is convenient for operation to realize.

Description

Technical Field

[0001] This utility model belongs to the field of welding machinery, and relates to welding torches, and in particular to a handheld mini welding machine with a quick-change welding torch head. Background Technology

[0002] A welding torch is the part used in the welding process to perform the welding operation. It is a tool used for gas welding, shaped like a gun, with a nozzle at the front that sprays out a high-temperature flame as a heat source. It is flexible, convenient, quick, and the process is simple.

[0003] For example, a fireproof glass door with publication number CN218542055U includes a door frame and a fireproof glass door leaf, wherein: the door frame is mounted on the cavity wall, and the fireproof glass door leaf is symmetrically installed inside the door frame; the door frame also has a middle frame, and the fireproof glass door leaf is located on two opposite sides of the middle frame; an outward hinge is provided between the door frame and the fireproof glass door leaf, and the fireproof glass door leaf can rotate on the door frame through the hinge point of the outward hinge; fireproof glass is provided inside the middle frame.

[0004] The existing welding torch with publication number CN202147085U includes a torch shell and an end cap assembly disposed on the torch shell. The interior of the torch shell and the end cap assembly forms a cavity. A welding torch shaft assembly and a fixing sleeve fixed to the torch shell are disposed in the cavity. An energized coil is disposed in the fixing sleeve. A conductive chuck is disposed at the front end of the welding torch shaft assembly. The rear end of the welding torch shaft assembly is detachably connected to the fixing sleeve through an armature. A bushing is coaxially sleeved on the welding torch shaft assembly. A positioning rod extending outward is disposed on the outer edge of the bushing. The torch shell has a hole for engaging with the positioning rod. The armature is cross-shaped, and the fixing sleeve has a cross-shaped hole that matches the armature.

[0005] However, when welding other parts, the welding torches mentioned above need to have their torch heads replaced to make them compatible with different parts. However, the existing torch heads are all fixed by threaded engagement or screws, which makes replacement quite troublesome. Utility Model Content

[0006] This utility model provides a handheld mini welding machine with a quick-change welding gun head, which allows for easy replacement of the gun head via Cixi.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a handheld small welding machine with a quick-change welding gun head, comprising a body, characterized in that the body has an installation groove, a gun head is detachably connected in the installation groove, a movable cavity is provided below the installation groove, a through hole is provided between the movable cavity and the installation groove, a convex piece extending into the installation groove is slidably connected in the movable cavity, the convex piece has a round hole for facilitating the passage of flame, and magnetic pieces are fixed at the bottom of the convex piece and the gun head. When the two magnetic pieces attract each other, the convex piece passes through the through hole and enters the installation groove, and the gun head is installed in the installation groove.

[0008] A further preferred technical solution of this utility model is as follows: a plurality of extension pieces extending toward the side of the mounting groove are fixedly connected to the convex piece, and a protrusion that can pass through the machine body and enter the mounting groove is fixedly connected to the side wall of each extension piece near the mounting groove. A slot is provided on the gun head to facilitate the protrusion to be inserted. When the two magnetic pieces attract each other, the protrusion is inserted into the slot.

[0009] A further preferred embodiment of this utility model is that the protrusion, the extension piece, and the convex piece are all integrally formed.

[0010] A further preferred technical solution of this utility model is as follows: the body is provided with an annular groove communicating with the movable cavity, the extension piece slides in the annular groove, and when the two magnetic pieces attract each other, both the extension piece and the convex piece slide upward.

[0011] A further preferred technical solution of this utility model is as follows: a plurality of push blocks are fixedly connected to the inner sidewall of the annular groove. When the extension piece slides upward, the push blocks abut against the extension piece, the extension piece deforms, and the protrusion enters the mounting groove and engages with the slot.

[0012] A further preferred embodiment of this utility model is that the pusher is a triangular block.

[0013] A further preferred embodiment of this utility model is as follows: a plurality of springs are fixedly connected between the convex sheet and the bottom surface of the movable cavity. When the two magnetic sheets attract each other, the springs deform.

[0014] A further preferred embodiment of this utility model is that the protrusion has an arc-shaped surface.

[0015] Compared with the prior art, this utility model includes a body with a mounting groove. A gun head is detachably connected to the mounting groove. A movable cavity is located below the mounting groove, and a through hole is provided between the movable cavity and the mounting groove. A convex piece extending into the mounting groove is slidably connected in the movable cavity. The convex piece has a round hole to facilitate the passage of flame. Both the convex piece and the bottom of the gun head are fixed with magnetic pieces. Therefore, when replacing the gun head, the gun head is moved outward to separate the two magnetic pieces. During installation, as the gun head approaches, the convex piece slides upward to enter the mounting cavity and engages with the magnetic piece on the gun head. At this time, the gun head is fixed in the mounting groove, thus completing the assembly. This design makes the replacement and assembly of the gun head more convenient and quick, and easier to operate. Attached Figure Description

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded view of the present invention; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0018] In the diagram: 1. Body; 2. Gun head; 3. Mounting slot; 4. Through hole; 5. Convex piece; 6. Extension piece; 7. Protrusion; 8. Round hole; 9. Movable cavity; 10. Spring; 11. Slot; 12. Push block; 13. Annular groove; 14. Magnetic sheet. Detailed Implementation

[0019] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0020] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0021] like Figures 1-3As shown, a handheld mini welding machine with a quick-change welding torch head includes a body 1. The body 1 has a mounting groove 3, and a torch head 2 is detachably connected to the mounting groove 3. A movable cavity 9 is located below the mounting groove 3, and a through hole 4 is provided between the movable cavity 9 and the mounting groove 3. A convex piece 5 extending into the mounting groove 3 is slidably connected in the movable cavity 9. A round hole 8 is provided on the convex piece 5 to facilitate the passage of flame. Magnetic pieces 14 are fixed at the bottom of both the convex piece 5 and the torch head 2. When the two magnetic pieces 14 attract each other, the convex piece 5 passes through the through hole 4 and enters the mounting groove 3, and the torch head 2 is installed in the mounting groove 3.

[0022] like Figures 1-3 As shown, when it is necessary to assemble the gun head 2 and the body 1, the gun head 2 is brought closer to the mounting groove 3. At this time, as the gun head 2 approaches, the two magnetic pieces 14 attract each other, and the convex piece 5 slides to one side of the mounting groove 3, so that the convex piece 5 enters the mounting groove 3 until the magnetic pieces 14 on the gun head 2 and the magnetic pieces 14 on the convex piece 5 attract each other. At this time, the gun head 2 is installed in the mounting groove 3. like Figures 1-3 As shown, the above operation makes it more convenient and faster to replace the nozzle 2, and it is easier and more convenient to implement during operation, effectively shortening the time for replacing the nozzle 2.

[0023] like Figures 1-3 As shown, several springs 10 are fixedly connected between the convex plate 5 and the bottom surface of the movable cavity 9. When the two magnetic plates 14 attract each other, the springs 10 deform.

[0024] like Figures 1-3 As shown, by setting the spring 10, when the gun head 2 is separated from the mounting groove 3, the deformed spring 10 can drive the convex piece 5 to slide downward, thereby resetting it and preventing the convex piece 5 from being located in the mounting groove 3 and affecting the installation.

[0025] like Figures 1-4 As shown, a number of extension pieces 6 are fixedly connected to the convex piece 5, extending towards the side of the mounting groove 3. Each extension piece 6 is fixedly connected to a protrusion 7 that can pass through the body 1 and enter the mounting groove 3 on the side wall of the mounting groove 3. The gun head 2 is provided with a slot 11 to facilitate the insertion of the protrusion 7. When the two magnetic pieces 14 attract each other, the protrusion 7 is inserted into the slot 11.

[0026] like Figures 1-4 As shown, when the gun head 2 is installed, as the gun head 2 gradually enters the mounting groove 3, the magnetic piece 14 on the convex piece 5 is attracted by the magnetic piece 14 on the gun head 2, causing the convex piece 5 and the extension piece 6 to gradually slide towards one side of the mounting groove 3 until the two magnetic pieces 14 attract each other. At this time, the bottom surface of the convex piece 5 also faces the mounting groove 3, and the protrusion 7 will also enter the mounting groove 3 and form a snap-fit ​​with the slot 11 on the gun head 2. like Figures 1-4As shown, the cooperation between the protrusion 7 and the slot 11 effectively limits the sliding range of the gun head 2 along the depth direction of the mounting groove 3, and also effectively limits the rotation range of the gun head 2, preventing displacement of the gun head 2 during use and affecting welding. This design further improves the stability of the gun head 2 installation and makes the installation of the gun head 2 more secure.

[0027] like Figures 1-4 As shown, the bump 7, the extension piece 6, and the convex piece 5 are all integrally formed, which facilitates manufacturing and saves materials during manufacturing, thereby reducing costs.

[0028] like Figures 1-4 As shown, the protrusion 7 has an arc-shaped surface, which makes it easy to remove the gun head 2 by moving the gun head 2 outward when disassembling it, thus facilitating replacement. This design facilitates disassembly and installation.

[0029] like Figures 1-4 As shown, the body 1 has an annular groove 13 that communicates with the movable cavity 9. The extension piece 6 slides in the annular groove 13. When the two magnetic pieces 14 attract each other, the extension piece 6 and the convex piece 5 slide upward. This design facilitates the sliding of the extension piece 6 and reserves a certain space for the extension piece 6.

[0030] like Figures 1-4 As shown, several push blocks 12 are fixedly connected to the inner wall of the annular groove 13. When the extension piece 6 slides upward, the push block 12 abuts against the extension piece 6, the extension piece 6 deforms and the protrusion 7 enters the mounting groove 3 and engages with the slot 11.

[0031] like Figures 1-4 As shown, by setting the push block 12, when the extension piece 6 slides upward, the push block 12 pushes the extension piece 6 to deform, thereby causing the protrusion 7 to enter the mounting groove 3 and form a snap-fit ​​with the slot 11. This design achieves the function of pushing the protrusion 7 to snap-fit ​​with the slot 11.

[0032] like Figures 1-4 As shown, push block 12 is a triangular block, which can facilitate the deformation of extension piece 6.

[0033] The aforementioned extension piece 6, magnetic piece 14, convex piece 5, and spring 10 are all made of high-temperature resistant materials, thereby ensuring that the above structure can operate normally at high temperatures.

[0034] The present invention provides a handheld mini welding machine with a quickly replaceable welding torch head. Specific examples have been used to illustrate the principle and implementation of the invention. The descriptions of these embodiments are merely for the purpose of helping to understand the invention and its core concepts. It should be noted that those skilled in the art can make various improvements and modifications to the invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims.

Claims

1. A handheld mini welding machine with a quickly replaceable welding torch head, comprising a body, characterized in that, The body has a mounting groove, and a gun head is detachably connected to the mounting groove. A movable cavity is located below the mounting groove, and a through hole is provided between the movable cavity and the mounting groove. A convex piece extending into the mounting groove is slidably connected in the movable cavity. A round hole is provided on the convex piece to facilitate the passage of flame. Magnets are fixed to the bottom of both the convex piece and the gun head. When the two magnets attract each other, the convex piece passes through the through hole and enters the mounting groove, and the gun head is installed in the mounting groove.

2. The handheld mini welding machine with a quickly replaceable welding torch head as described in claim 1, characterized in that, The convex plate is fixedly connected with several extension plates extending towards the side of the mounting groove. Each extension plate has a protrusion fixedly connected to the side wall of the mounting groove that can pass through the machine body and enter the mounting groove. The gun head is provided with a slot to facilitate the protrusion to be inserted. When the two magnetic plates attract each other, the protrusion is inserted into the slot.

3. A handheld mini welding machine with a quickly replaceable welding torch head as described in claim 2, characterized in that, The bump, extension piece, and convex piece are all integrally formed.

4. A handheld mini welding machine with a quickly replaceable welding torch head as described in claim 2, characterized in that, The body has an annular groove that communicates with the movable cavity. The extension piece slides within the annular groove. When the two magnetic pieces attract each other, both the extension piece and the convex piece slide upwards.

5. A handheld mini welding machine with a quickly replaceable welding torch head according to claim 4, characterized in that, Several push blocks are fixedly connected to the inner wall of the annular groove. When the extension piece slides upward, the push blocks abut against the extension piece, the extension piece deforms, and the protrusion enters the mounting groove and engages with the slot.

6. A handheld mini welding machine with a quickly replaceable welding torch head according to claim 5, characterized in that, The push block is a triangular block.

7. A handheld mini welding machine with a quickly replaceable welding torch head according to claim 1, characterized in that, Several springs are fixedly connected between the convex sheet and the bottom surface of the movable cavity. When two magnetic sheets attract each other, the springs deform.

8. A handheld mini welding machine with a quickly replaceable welding torch head according to claim 2, characterized in that, The protrusion has an arc-shaped surface.

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