A rapidly replaceable plasma electrode

Abstract

The utility model relates to the technical field of plasma electrode, disclose a kind of plasma electrode of quick replacement, including gun head seat, gun barrel and operation handle, the top of the gun barrel is connected with gun head seat, the left side outside of the gun head seat is provided with gun head thread groove, the left side of the gun head seat is inserted with plasma electrode head, the outside of the plasma electrode head is equipped with cutting nozzle head.The utility model is equipped with convenient replacement structure, when using, the left side of the plasma electrode head is inserted into the middle of gun head seat, and the cutting nozzle head is inserted into the left side of gun head seat, and the plasma electrode head in the inside of gun head seat is equipped, by using hexagonal wrench and inserting the adjusting slot opened in the outside of cutting nozzle head, the cutting nozzle head is engaged in the left side of gun head seat, finally, the fixing cover is equipped in the outside gun head thread groove of cutting nozzle head, the adjusting rib block carries out thread engagement with gun head thread groove with fixing cover, so as to realize the function of convenient replacement.

Description

Technical Field

[0001] This utility model relates to the field of plasma electrode technology, specifically to a quick-replaceable plasma electrode. Background Technology

[0002] Plasma cutting guns are a processing method used for metal cutting. They melt metal using a high-temperature plasma arc and use a high-speed plasma stream to expel the molten material to form a cutting kerf. They are mainly used in the processing of metal sheets such as stainless steel, carbon steel, and aluminum. The plasma electrodes inside the cutting gun have a limited lifespan due to the high-temperature operation, making them common consumables that need to be replaced frequently.

[0003] Traditional plasma electrode head replacements require the cutting torch to be cooled before replacement, and often necessitate the use of a special handle. Adjustable wrenches or pliers cannot be used for direct tightening. Furthermore, the small size of specialized wrenches makes subsequent electrode installation difficult if lost. Therefore, we propose a quick-replacement plasma electrode to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide a quick-replaceable plasma electrode to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-replaceable plasma electrode, comprising a gun head base, a gun barrel, and an operating handle. The gun head base is connected to the top of the gun barrel. A gun head threaded groove is provided on the left outer side of the gun head base. A plasma electrode head is inserted into the left side of the gun head base. A cutting nozzle is fitted around the plasma electrode head. An adjustment slot is provided on the outside of the cutting nozzle. A fixing cover is fitted around the adjustment slot. An adjustment rib is installed on the outside of the fixing cover.

[0006] As a further technical solution of this utility model, the front and rear ends of the cutting nozzle are provided with adjustment slots, four sets of adjustment blocks are provided outside the fixed cover, and the plasma electrode head is installed between the gun head seat and the cutting nozzle.

[0007] As a further technical solution of this utility model, the cutting nozzle is driven to engage with the inner thread of the gun head seat through the adjusting slot, the fixing cover is sleeved on the outside of the cutting nozzle, and the adjusting block drives the fixing cover to engage with the gun head thread groove on the left side of the gun head seat.

[0008] As a further technical solution of this utility model, an auxiliary sleeve is fitted on the outer surface of the gun barrel, an insulating ring block is provided inside the auxiliary sleeve, a magnetic block is embedded on the left side of the auxiliary sleeve, and an adjusting screw is installed at the bottom of the auxiliary sleeve.

[0009] As a further technical solution of this utility model, the auxiliary sleeve carries an internal heat-insulating ring block and is sleeved on the outside of the gun barrel. The adjusting screw is threaded into the bottom of the auxiliary sleeve to fix the auxiliary sleeve to the outside of the gun barrel. The auxiliary sleeve is magnetically attracted to the metal by an externally embedded magnetic block.

[0010] As a further technical solution of this utility model, an operating grip is connected to the bottom of the gun barrel, a start button is provided on the left side of the operating grip, a stop block is installed on the outside of the start button, a lower connecting seat is connected to the bottom of the operating grip, an adjusting sleeve is connected to the right side of the lower connecting seat, a connecting thread groove is provided on the outside of the lower connecting seat, an inner connecting tube is provided inside the lower connecting seat, and a lower protective seat sleeve is fitted on the outside of the lower connecting seat.

[0011] As a further technical solution of this utility model, the operating handle is connected to the inner connecting pipe through the lower connecting seat, the adjusting sleeve is flipped outside the lower connecting seat, the lower connecting seat and the adjusting sleeve are provided with connecting thread grooves, and the lower protective seat sleeve is threadedly engaged with the connecting thread grooves on the lower connecting seat and the adjusting sleeve.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this kind of quick-replaceable plasma electrode not only realizes the function of easy replacement and adjustment limit, but also realizes the function of quick connection;

[0013] (1) By setting a structure that facilitates replacement, the present invention is beneficial as follows: When in use, the plasma electrode head is inserted into the middle left side of the gun head seat, and the cutting nozzle is inserted into the left side of the gun head seat to fit the plasma electrode head inside the gun head seat. The cutting nozzle is engaged with the internal threads of the gun head seat by using a wrench. If there is no special wrench, a hex wrench can be used to open an adjustment slot on the outside of the cutting nozzle so that the cutting nozzle is engaged inside the left side of the gun head seat. Finally, the fixing cover is fitted onto the external gun head thread groove of the cutting nozzle so that the adjusting block carries the fixing cover and engages with the gun head thread groove. The fixing cover is fixed on the left side of the gun head seat to fix the cutting nozzle and the plasma electrode head inside the cutting nozzle for a second time, thereby realizing the function of easy replacement and making it convenient to replace the plasma electrode head without professional tools.

[0014] (2) By setting an adjustment limit structure, the present invention is beneficial in that: when in use, the auxiliary sleeve is sleeved on the outside of the gun barrel, and the heat insulation ring block inside the auxiliary sleeve will isolate the force generated inside the gun barrel, so that the temperature cannot be transmitted to the auxiliary sleeve, and prevent the magnetic block embedded on the outside of the auxiliary sleeve from being demagnetized. At the same time, the magnetic block on the outside of the auxiliary sleeve can be magnetically attracted to some metals, which makes it convenient to fix and limit the gun barrel. Loosening the adjustment screw at the bottom of the auxiliary sleeve can slide the auxiliary sleeve on the outside of the gun barrel to adjust the corresponding position, thereby realizing the adjustment limit function.

[0015] (3) By setting a quick connection structure, the present invention is beneficial in that: when in use, after the gun wire is passed through the lower protective seat, the adjusting sleeve block on the outside of the lower connecting seat is flipped open, the gun wire is connected to the inner connecting tube inside the lower connecting seat, and then the adjusting sleeve block and the lower connecting seat are closed. In between, the connecting thread groove on the outside of the lower protective seat and the lower connecting seat are threadedly engaged, and the gun wire is quickly connected to the operating handle, which facilitates quick assembly and disassembly of the gun wire during use, thereby realizing the quick connection function. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present utility model;

[0017] Figure 2 This is a schematic diagram of the unfolded structure of the nozzle holder and the cutting tip of this utility model;

[0018] Figure 3 This is a side sectional view of the auxiliary sleeve structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the unfolded structure of the lower connecting seat and the lower protective seat sleeve of this utility model.

[0020] In the diagram: 1. Fixed cover; 2. Nozzle holder; 3. Nozzle barrel; 4. Auxiliary sleeve; 5. Operating handle; 6. Stop block; 7. Start button; 8. Lower protective sleeve; 9. Magnetic block; 10. Insulation ring block; 11. Adjusting screw; 12. Cutting nozzle; 13. Plasma electrode head; 14. Nozzle threaded groove; 15. Adjusting slot; 16. Adjusting ridge block; 17. Connecting threaded groove; 18. Adjusting sleeve block; 19. Lower connecting seat; 20. Inner connecting tube. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4An embodiment of this utility model is provided: a quick-replaceable plasma electrode, including a gun head seat 2, a gun rod 3 and an operating handle 5. The gun head seat 2 is connected to the top of the gun rod 3. A gun head thread groove 14 is provided on the left side of the gun head seat 2. A plasma electrode head 13 is inserted into the left side of the gun head seat 2. A cutting nozzle 12 is sleeved on the outside of the plasma electrode head 13. An adjustment slot 15 is opened on the outside of the cutting nozzle 12. A fixing cover 1 is sleeved on the outside of the adjustment slot 15. An adjustment ridge block 16 is installed on the outside of the fixing cover 1.

[0023] The cutting nozzle 12 has adjustment slots 15 at its front and rear ends. Four sets of adjustment blocks 16 are provided on the outside of the fixed cover 1. The plasma electrode head 13 is installed between the gun head seat 2 and the cutting nozzle 12. The cutting nozzle 12 is driven to engage with the inner thread of the gun head seat 2 through the adjustment slots 15. The fixed cover 1 is sleeved on the outside of the cutting nozzle 12. The adjustment blocks 16 drive the fixed cover 1 to engage with the gun head thread groove 14 on the left side of the gun head seat 2.

[0024] Specifically, such as Figure 1 and Figure 2 As shown, by setting up a structure that facilitates replacement, when in use, the plasma electrode head 13 is inserted into the middle of the left side of the nozzle holder 2, and the cutting tip 12 is inserted into the left side of the nozzle holder 2 to fit the plasma electrode head 13 inside the nozzle holder 2. A wrench is used to make the cutting tip 12 engage with the internal threads of the nozzle holder 2. If a special wrench is not available, an adjustment slot 15 can be opened on the outside of the cutting tip 12 to make the cutting tip 12 engage inside the left side of the nozzle holder 2. Finally, the fixing cover 1 is fitted onto the external nozzle thread groove 14 of the cutting tip 12, so that the adjusting block 16 carries the fixing cover 1 and engages with the nozzle thread groove 14. The fixing cover 1 is fixed on the left side of the nozzle holder 2 to fix the cutting tip 12 and the plasma electrode head 13 inside the cutting tip 12 for a second fixation, thereby realizing the function of easy replacement.

[0025] The gun barrel 3 is fitted with an auxiliary sleeve 4, the auxiliary sleeve 4 is provided with a heat insulation ring block 10 inside, a magnetic block 9 is embedded on the left side of the auxiliary sleeve 4, and an adjusting screw 11 is installed at the bottom of the auxiliary sleeve 4.

[0026] The auxiliary sleeve 4, carrying the internal heat insulation ring 10, is fitted onto the outside of the gun barrel 3. The adjusting screw 11 engages with the bottom of the auxiliary sleeve 4 to fix the auxiliary sleeve 4 to the outside of the gun barrel 3. The auxiliary sleeve 4 is magnetically attracted to the metal through the externally embedded magnetic block 9.

[0027] Specifically, such as Figure 1 and Figure 3As shown, by setting an adjustment limit structure, when in use, the auxiliary sleeve 4 is fitted onto the outside of the gun barrel 3. The heat insulation ring block 10 inside the auxiliary sleeve 4 isolates the force generated inside the gun barrel 3, preventing the temperature from being transferred to the auxiliary sleeve 4 and preventing the magnetic block 9 embedded on the outside of the auxiliary sleeve 4 from being demagnetized. At the same time, the magnetic block 9 on the outside of the auxiliary sleeve 4 can be magnetically attracted to some metals, which facilitates the fixation and limitation of the gun barrel 3. Loosening the adjustment screw 11 at the bottom of the auxiliary sleeve 4 allows the auxiliary sleeve 4 to slide and adjust to the corresponding position outside the gun barrel 3, thereby realizing the adjustment and limit function.

[0028] The bottom of the gun barrel 3 is connected to the operating grip 5. The left side of the operating grip 5 is provided with the start button 7. The start button 7 is equipped with a stop block 6. The bottom of the operating grip 5 is connected to the lower connecting seat 19. The right side of the lower connecting seat 19 is connected to the adjusting sleeve block 18. The lower connecting seat 19 is provided with the connecting thread groove 17 on the outside. The lower connecting seat 19 is provided with the inner connecting tube 20 inside. The lower connecting seat 19 is covered with the lower protective seat sleeve 8.

[0029] The operating handle 5 is connected to the inner connecting pipe 20 through the lower connecting seat 19. The adjusting sleeve 18 is flipped outside the lower connecting seat 19. The lower connecting seat 19 and the adjusting sleeve 18 are provided with connecting thread grooves 17. The lower protective seat sleeve 8 is threadedly engaged with the connecting thread grooves 17 outside the lower connecting seat 19 and the adjusting sleeve 18.

[0030] Specifically, such as Figure 1 and Figure 4 As shown, by setting up a quick-connect structure, when in use, after passing the gun wire through the lower protective sleeve 8, the adjusting sleeve 18 on the outside of the lower connecting seat 19 is flipped open, and the gun wire is connected to the inner connecting tube 20 inside the lower connecting seat 19. Then, the adjusting sleeve 18 and the lower connecting seat 19 are closed, and the lower protective sleeve 8 and the connecting thread groove 17 on the outside of the lower connecting seat 19 are threaded together, so that the gun wire can be quickly connected to the operating handle 5. This facilitates quick installation and removal of the gun wire during use, thus realizing the quick-connect function.

[0031] Working Principle: In use, the plasma electrode head 13 is inserted into the middle left side of the nozzle holder 2. The cutting tip 12 is then inserted into the left side of the nozzle holder 2 to fit the plasma electrode head 13 inside. If a special wrench is unavailable, a hex wrench can be used to create an adjustment slot 15 on the outside of the cutting tip 12, allowing the cutting tip 12 to engage inside the left side of the nozzle holder 2. Finally, the fixing cover 1 is fitted onto the external nozzle thread groove 14 of the cutting tip 12, allowing the adjusting block 16 to engage the fixing cover 1 with the nozzle thread groove 14, thus fixing the fixing cover 1 to the left side of the nozzle holder 2 for secondary fixation of the cutting tip 12 and the plasma electrode head 13 inside. Afterwards, the lower protective cover 8 is removed from the lower connecting seat 19, and the gun wire is passed through the lower protective cover. After the protective sleeve 8 is installed, flip open the adjusting sleeve 18 on the outside of the lower connecting seat 19. After connecting the gun wire to the inner connecting tube 20 inside the lower connecting seat 19, close the adjusting sleeve 18 and the lower connecting seat 19. Then, thread the connecting thread groove 17 on the outside of the lower protective sleeve 8 and the lower connecting seat 19 to engage. Quickly connect the gun wire to the operating handle 5. Loosen the adjusting screw 11 at the bottom of the auxiliary sleeve 4 to slide the auxiliary sleeve 4 to adjust its position outside the gun barrel 3. The heat insulation ring 10 inside the auxiliary sleeve 4 will isolate the force generated inside the gun barrel 3, preventing the temperature from being transferred to the auxiliary sleeve 4 and preventing the magnetic block 9 embedded on the outside of the auxiliary sleeve 4 from being demagnetized. At the same time, the magnetic block 9 on the outside of the auxiliary sleeve 4 can be magnetically attracted to some metals, which is convenient for fixing and limiting the gun barrel 3.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A quick-change plasma electrode, comprising a nozzle holder (2), a nozzle shaft (3), and an operating grip (5), characterized in that: The top of the gun barrel (3) is connected to a gun head seat (2). A gun head thread groove (14) is provided on the left side of the gun head seat (2). A plasma electrode head (13) is inserted into the left side of the gun head seat (2). A cutting nozzle (12) is sleeved on the outside of the plasma electrode head (13). An adjustment slot (15) is opened on the outside of the cutting nozzle (12). A fixing cover (1) is sleeved on the outside of the adjustment slot (15). An adjustment prism (16) is installed on the outside of the fixing cover (1).

2. The quick-replaceable plasma electrode according to claim 1, characterized in that: The cutting nozzle (12) has adjustment slots (15) at its front and rear ends. Four sets of adjustment blocks (16) are provided outside the fixed cover (1). The plasma electrode head (13) is installed between the nozzle seat (2) and the cutting nozzle (12).

3. The quick-replaceable plasma electrode according to claim 1, characterized in that: The cutting nozzle (12) is driven to engage with the inner thread of the gun head seat (2) through the adjusting slot (15). The fixing cover (1) is sleeved on the outside of the cutting nozzle (12). The adjusting block (16) drives the fixing cover (1) to engage with the gun head thread groove (14) on the left side of the gun head seat (2).

4. The quick-replaceable plasma electrode according to claim 1, characterized in that: The gun barrel (3) is fitted with an auxiliary sleeve (4), and the auxiliary sleeve (4) is provided with a heat insulation ring block (10) inside. A magnetic block (9) is embedded on the left side of the auxiliary sleeve (4), and an adjusting screw (11) is installed at the bottom of the auxiliary sleeve (4).

5. A quick-replaceable plasma electrode according to claim 4, characterized in that: The auxiliary sleeve (4) carries the internal heat insulation ring (10) and is fitted on the outside of the gun barrel (3). The adjusting screw (11) is threaded into the bottom of the auxiliary sleeve (4) to fix the auxiliary sleeve (4) to the outside of the gun barrel (3). The auxiliary sleeve (4) is magnetically attracted to the metal through the externally embedded magnetic block (9).

6. The quick-replaceable plasma electrode according to claim 1, characterized in that: The bottom of the gun barrel (3) is connected to an operating grip (5). A start button (7) is provided on the left side of the operating grip (5). A stop block (6) is installed on the outside of the start button (7). A lower connecting seat (19) is connected to the bottom of the operating grip (5). An adjusting sleeve block (18) is connected to the right side of the lower connecting seat (19). A connecting thread groove (17) is provided on the outside of the lower connecting seat (19). An inner connecting tube (20) is provided inside the lower connecting seat (19). A lower protective seat sleeve (8) is fitted on the outside of the lower connecting seat (19).

7. A quick-replaceable plasma electrode according to claim 6, characterized in that: The operating handle (5) is connected to the inner connecting pipe (20) through the lower connecting seat (19). The adjusting sleeve (18) is flipped outside the lower connecting seat (19). The lower connecting seat (19) and the adjusting sleeve (18) are provided with connecting thread grooves (17). The lower protective seat sleeve (8) is threadedly engaged with the connecting thread grooves (17) outside the lower connecting seat (19) and the adjusting sleeve (18).

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