Protective cover structure for plasma cutting gun head

Abstract

The utility model discloses a protective cover structure for a plasma cutting gun head, and relates to the technical field of plasma cutting guns, the gun head of a cutting gun body is provided with a fastening thread, the cutting gun body is screwed with a protective cover thread through the fastening thread, the protective cover comprises an assembly thread sleeve and a protective cylinder sleeve which are integrally connected, and the protective cylinder sleeve is fixedly connected with the assembly thread sleeve. Three sets of cleaning scrapers are slidably connected to the interior of the protective sleeve in a star-triangle mode, and the protective sleeve is annularly sleeved with a brake knob for driving the cleaning scrapers. In the installation and use process of the plasma cutting gun head protection cover structure, when the plasma cutting gun head adheres to slag due to splashing caused by melting, only the brake knob needs to be rotated, the cleaning scraper is pushed to rotate and transmit along the protection sleeve, and the slag adhering to the plasma cutting gun head and the protection cover is scraped and cleaned in time; daily maintenance work can be completed without overall disassembly and assembly, and the practicability is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of plasma cutting torch, especially the protective cover structure for plasma cutting torch head. BACKGROUND

[0002] Plasma cutting torch is widely used because of fast cutting speed, high cutting precision and easy setting of cutting conditions, which uses the heat of high-temperature plasma arc to locally melt the metal at the cutting edge of the workpiece and forms a cutting gap by discharging the molten metal with the momentum of high-speed plasma, and is widely used in industrial production field. During daily use, a protective cover is usually arranged at the head part of the plasma cutting torch to play a protective isolation role. For example, the protective cover of the plasma cutting torch disclosed in the Chinese patent network (publication announcement number CN210060088U) is arranged on the nozzle seat at the nozzle part of the torch head and connected with the torch head body to play a protective role for the nozzle.

[0003] However, the protective cover of the plasma cutting torch disclosed in the above patent and the existing market still has some deficiencies. The existing protective cover of the plasma cutting torch mostly only has a single anti-collision cover protection function, and the protective performance is relatively single. For the molten slag splashed on the plasma cutting torch head during the melting cutting process, effective treatment cannot be achieved, and the protective cover structure needs to be disassembled and assembled as a whole to clean the molten slag, which is complicated and easy to delay the cutting progress. Therefore, the technical personnel in the field provide the protective cover structure for the plasma cutting torch head to solve the problems raised in the above background. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides the protective cover structure for the plasma cutting torch head, which solves the problem of the protective cover of the existing plasma cutting torch raised in the above background technology.

[0005] To achieve the above purpose, the utility model is implemented by the following technical scheme: the protective cover structure for the plasma cutting torch head, comprising a cutting torch body;

[0006] The head of the cutting torch body is provided with a fastening thread, and the cutting torch body is screwed with the protective cover through the fastening thread;

[0007] The protective cover comprises an assembly screw sleeve and a protective sleeve, and the inside of the protective sleeve is slidably connected with three groups of cleaning scrapers in a star triangle form, and the outside of the protective sleeve is sleeved with a brake knob for driving the cleaning scrapers;

[0008] The protective sleeve comprises a protective sleeve and a track sliding groove opened in the inside of the protective sleeve;

[0009] The cleaning scraper comprises a track slider and two groups of scraper bodies symmetrically arranged at two ends of the track slider.

[0010] As a further technical scheme of the present application, a first blade is arranged on one side of the scraper body and is attached to the inner wall of the protective sleeve, and a second blade is arranged on the other side of the scraper body and is attached to the head of the cutting gun body.

[0011] As a further technical scheme of the present application, the two groups of scraper bodies are arranged in a fan shape, and the included angle between the two groups of scraper bodies is 60°.

[0012] As a further technical scheme of the present application, a guide sliding buckle is arranged at one end of the back plate of the track slider, and the guide sliding buckle is fixedly connected with the brake knob.

[0013] Three groups of guide sliding grooves are symmetrically arranged on the cylindrical wall of the protective sleeve along the circumferential direction of the track sliding groove.

[0014] As a further technical scheme of the present application, the guide sliding buckle and the guide sliding groove are adapted to each other, and the rotation displacement angle of the guide sliding buckle along the guide sliding groove is 60°.

[0015] As a further technical scheme of the present application, the outer diameter of the track slider is adapted to the inner diameter of the cavity of the track sliding groove.

[0016] As a further technical scheme of the present application, the head of the cutting gun body is provided with a stop screw sleeve above the fastening thread.

[0017] The protective cover structure for the plasma cutting gun head provided by the present application has the following advantages compared with the prior art:

[0018] 1. The plasma cutting gun head protective cover structure is screwed onto the head of the cutting gun body through the fastening thread arranged on the cutting gun body, and the cleaning scraper is closely attached to the head of the cutting gun body, thereby serving as a cleaning component and a supporting rib, further improving the integrated assembly performance of the protective cover and the plasma cutting gun, and better preventing collision and impact.

[0019] 2. During the installation and use of the plasma cutting gun head protective cover structure, when the plasma cutting gun head is adhered with molten slag due to melting and splashing, the brake knob is only needed to be rotated to drive the cleaning scraper to rotate along the protective sleeve, thereby timely scraping and cleaning the molten slag adhered to the plasma cutting gun head and the protective cover, and the daily maintenance work can be completed without overall disassembly, thereby bettering the practical performance. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Structure diagram of protective cover structure for plasma cutting torch head;

[0021] Figure 2 Bottom view of protective cover structure for plasma cutting torch head;

[0022] Figure 3 Disassembly diagram of protective cover structure for plasma cutting torch head;

[0023] Figure 4 Structure diagram of protective cover in protective cover structure for plasma cutting torch head;

[0024] Figure 5 Exploded view of protective cover in protective cover structure for plasma cutting torch head;

[0025] Figure 6 Partial sectional view of protective cover in protective cover structure for plasma cutting torch head;

[0026] Figure 7 Structure diagram of protective cylinder sleeve in protective cover structure for plasma cutting torch head;

[0027] Figure 8 Structure diagram of cleaning scraper in protective cover structure for plasma cutting torch head.

[0028] In the figure: 1, cutting torch body; 2, protective cover; 3, fastening thread; 4, stop screw sleeve; 21, assembly screw sleeve; 22, brake knob; 23, protective cylinder sleeve; 231, protective sleeve; 232, track sliding groove; 233, guide sliding groove; 24, cleaning scraper; 241, track sliding block; 242, guide sliding buckle; 243, scraper body; 244, first blade; 245, second blade. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] Please refer to Figures 1-8The utility model provides a protective cover structure technical scheme for plasma cutting gun head: the utility model discloses a protective cover structure for plasma cutting gun head, including cutting gun body 1, the gun head of cutting gun body 1 is provided with fastening thread 3, and cutting gun body 1 is screwed with the protective cover 2 through fastening thread 3, the protective cover 2 includes the assembly screw -nut 21 and the protection cylinder cover 23 of integral connection, the gun head of cutting gun body 1 is provided with the stop screw nut 4 of the fastening thread 3 top, the stop limit of stop screw nut 4 is used, when the assembly screw -nut 21 is screwed with fastening thread 3, with the mutual opposite of stop screw nut 4, the assembly orientation of protective cover 2 is limited, positioned.

[0031] The inside of protection cylinder cover 23 is slidably connected with three groups of cleaning scrapers 24 in star triangle form, the cleaning scraper 24 includes track slide 241 and two groups of scraper bodies 243 symmetrically installed at both ends of track slide 241, one side of scraper body 243 is provided with first blade 244 abutting with the inner wall of protection cylinder cover 23, and the other side of scraper body 243 is provided with second blade 245 abutting with the gun head of cutting gun body 1, by abutting first blade 244 on one side of scraper body 243 with the inner wall of protection cylinder cover 23 and abutting second blade 245 on the other side with the gun head of cutting gun body 1, on the one hand, the scraping action of the two groups of blades can be used to scrape and clean the molten slag splashed on the inner wall of the protective cover and the cutting gun head, on the other hand, it can be used as a support rib part to improve the cover stability of the protective cover on the cutting gun head and strengthen the anti-collision and anti-impact protection performance of the cutting gun head.

[0032] The two groups of scraper bodies 243 are arranged in a fan shape, and the fan angle between the two groups of scraper bodies 243 is 60°, by setting the two groups of scraper bodies 243 to be 60° angle, each group of scraper bodies 243 only needs to rotate 60° during cleaning and scraping, and the circumferential cleaning process can be completed.

[0033] The outside of protection cylinder cover 23 is sleeved with brake knob 22 for driving cleaning scraper 24, back plate one end of track slide 241 is provided with guide slide buckle 242, and guide slide buckle 242 is fixedly connected with brake knob 22, three groups of guide sliding grooves 233 are formed in the circumferential star triangle symmetry of the barrel wall of protection sleeve 231 along the track sliding groove 232, guide slide buckle 242 and guide sliding groove 233 are slidably matched, and the knob displacement angle of guide slide buckle 242 along guide sliding groove 233 is 60°, by rotating brake knob 22, guide slide buckle 242 is driven to rotate and displace 60° in the groove direction of guide sliding groove 233, then track slide 241 is pushed to rotate 60° in the cavity circumferential rotation of track sliding groove 232, so that each group of scraper bodies 243 rotates 60° in the circumferential direction, and the circumferential scraping and cleaning work of the cutting gun head and the inner wall of the protective cover can be carried out, and the splashed and adhered molten slag is cleaned.

[0034] The protective sleeve 23 comprises a protective sleeve 231 and a track sliding groove 232 opened in the inside of the protective sleeve 231. The outer diameter of the track sliding block 241 is matched with the inner diameter of the cavity of the track sliding groove 232, and the cleaning scraper 24 can be circumferentially rotated and displaced by the guiding matching of the track sliding block 241 and the track sliding groove 232, which can keep the close-fitting performance and can also perform the scraping cleaning work.

[0035] The working principle of the utility model is as follows: when the protective cover structure is used as the protective component of the plasma cutting torch head, the protective cover 2 is screwed and fixed in the torch head part of the cutting torch body 1 by screwing along the thread of the fastening thread 3, so as to play a cover protection role, and at the same time of installing the protective cover 2, the cleaning scraper 24 in the inside is synchronously attached on the cutting torch head, which forms the supporting rib on one hand, improves the integral assembly with the cutting torch body 1, and strengthens the anti-collision and anti-impact protection performance of the cutting torch head, and on the other hand, the cleaning scraper 24 is used as the cleaning component to scrape and clean the molten slag splashed on the inner wall of the protective cover 2 and the cutting torch head;

[0036] When the cutting torch head is adhered with the molten slag due to the melting and splashing, the brake knob 22 is only needed to be actuated, the guiding displacement of the guiding sliding buckle 242 and the guiding sliding groove 233 is used to push each group of scraper bodies 243 to rotate 60° in the circumferential direction, the blades on the two sides of the scraper body 243 are used to scrape and clean the cutting torch head and the inner wall of the protective cover in the circumferential direction, the splashed and adhered molten slag is cleaned, the integral disassembly is not needed, the daily cleaning and maintenance work can be completed in real time, and the practicality is better.

[0037] The above only describes the preferred embodiments of the utility model, and it should be pointed out that for ordinary skilled persons in the technical field, some improvements and decorations can be made without departing from the principle of the utility model, and these improvements and decorations should also be regarded as the protection range of the utility model. The structures, devices and operation methods not specifically described and explained in the utility model are implemented according to the conventional means in the field without special description and limitation.

Claims

1. A protective cover structure for a plasma cutting torch tip, characterized in that, Including the cutting gun body (1); The head of the cutting gun body (1) is provided with a fastening thread (3), and the cutting gun body (1) is screwed to the protective cover (2) through the fastening thread (3); The protective cover (2) includes an integrally connected assembly screw sleeve (21) and a protective sleeve (23). The interior of the protective sleeve (23) is slidably connected with three sets of cleaning scrapers (24) in a star-triangle pattern, and the outer ring of the protective sleeve (23) is fitted with a brake knob (22) for driving the cleaning scrapers (24). The protective sleeve (23) includes a protective sleeve (231) and a track groove (232) opened inside the protective sleeve (231). The cleaning scraper (24) includes a track slider (241) and two sets of scraper bodies (243) installed symmetrically at both ends of the track slider (241).

2. The protective cover structure for a plasma cutting torch head according to claim 1, characterized in that, The scraper body (243) has a first blade (244) that fits against the inner wall of the protective sleeve (23) on one side, and a second blade (245) that fits against the head of the cutting gun body (1) on the other side.

3. The protective cover structure for a plasma cutting torch head according to claim 1, characterized in that, The two sets of scraper bodies (243) are arranged in a fan shape, and the included angle between the two sets of scraper bodies (243) is 60°.

4. The protective cover structure for a plasma cutting torch head according to claim 1, characterized in that, The back plate of the track slider (241) is provided with a guide slide (242) at one end, and the guide slide (242) is fixedly connected to the brake knob (22); The protective sleeve (231) has three sets of guide grooves (233) in a star-triangular symmetrical form along the circumference of the track groove (232) on the cylindrical wall.

5. The protective cover structure for a plasma cutting torch head according to claim 4, characterized in that, The guide slide buckle (242) and the guide slide groove (233) slide and adapt to each other, and the knob displacement angle of the guide slide buckle (242) along the guide slide groove (233) is 60°.

6. The protective cover structure for a plasma cutting torch head according to claim 1, characterized in that, The outer diameter of the track slider (241) is adapted to the inner diameter of the track groove (232).

7. The protective cover structure for a plasma cutting torch head according to claim 1, characterized in that, The head of the cutting gun body (1) is provided with a stop screw sleeve (4) directly above the fastening thread (3).

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