Scraper knife

Abstract

The utility model discloses a scraper knife and relates to the technical field of vehicle paint surface particle processing, the scraper knife comprises a knife handle and a knife head, the knife handle comprises a knife rod and a connecting piece, the knife head comprises a blade, a knife holder and a fixer, the blade comprises a triangular blade, and the knife rod and the knife holder are connected through the connecting piece, so that an included angle is formed between the knife rod and the knife holder. The fixator is connected with the knife holder, and the triangular blade is connected with the fixator. According to the technical scheme, the triangular blade with the three edges provided with the flat cutting edge, the concave cutting edge and the convex cutting edge respectively is adopted, the triangular blade can be suitable for various plane structures of a vehicle body, the triangular blade can be accurately attached to the vehicle body paint face, vehicle body paint face particles are shoveled to be flat at a time, and the quality and efficiency of vehicle body paint face particle treatment are improved; the triangular blade and the blade holder are connected through the fixing device, the cutting edges are switched through the fixing device, the structure is simple, and disassembly and assembly are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle paint surface particle treatment, in particular to a scraper. Background Art

[0002] After the vehicle body is sprayed with the mid-coat, all the particles on the vehicle body need to be ground on the mid-coat inspection line. Usually, water grinding is used to grind the particles, but a large amount of grinding dust will be generated after grinding, which requires multiple wiping and dust removal processes. In some corners that cannot be wiped, there is still grinding dust remaining. When the top coating robot sprays, the dust will be blown onto the outer panel, eventually resulting in poor quality of the particles after coating.

[0003] To reduce the generation of grinding dust during particle grinding and reduce the occurrence of defects in the painted particles, particles within the baseline value are flattened with a scraper. Then, after spraying the top coat, the flattened particles are completely covered by the top coat, which can meet production needs. However, the existing scraper blades are of a single type and cannot be applied to various flat structures of the car body. In the use scenarios of concave and convex surfaces of the car body, the paint particles cannot be scraped flat and the blade can easily scratch the paint around the particle points, causing secondary defects. In addition, when processing car body paint particles on the plane, the existing scraper blade often does not fit the paint surface, resulting in rough treatment of the paint particle points, which requires further grinding, resulting in low efficiency in processing paint particles.

[0004] Therefore, how to improve the quality and efficiency of vehicle body paint particle treatment is a problem that needs to be solved urgently. Utility Model Content

[0005] The main purpose of the utility model is to provide a scraper, aiming to solve the problem of how to improve the quality and efficiency of vehicle body paint particle processing.

[0006] To achieve the above-mentioned purpose, the utility model proposes a scraper for processing paint particles on a car body, the scraper comprising a handle and a blade head, the handle comprising a knife rod and a connecting piece, the knife head comprising a blade, a knife support and a fixer, the blade comprising a triangular blade, the knife rod and the knife support being connected by the connecting piece so that an angle is formed between the knife rod and the knife support, the fixer being connected to the knife support, the triangular blade being connected to the fixer, the triangular blade being located on the side of the knife support facing away from the fixer, and the side of the triangular blade facing away from the knife support being used to abut against the paint surface of the car body; the three sides of the triangular blade are respectively provided with a flat blade edge, a concave blade edge and a convex blade edge, the fixer can drive the triangular blade to move in a direction away from the knife support so that the triangular blade can be separated from the knife support, and the triangular blade can rotate relative to the knife support.

[0007] In one embodiment, a limiting groove for accommodating the triangular blade is provided on the tool holder, and a groove wall of the limiting groove can limit the rotation of the triangular blade located in the limiting groove.

[0008] In one embodiment, the fixer includes a driving assembly and an elastic return member, and the knife holder is further provided with a through hole connected to the limiting groove, the triangular blade includes a connected body and a fixed shaft, the three sides of the body are respectively provided with the flat blade, the concave blade and the convex blade, the limiting groove is used to accommodate the body, the groove wall of the limiting groove can limit the rotation of the body located in the limiting groove, the driving assembly extends into the through hole and is connected to the fixed shaft, the driving assembly includes a working position and a switching position, the driving assembly can reciprocate between the working position and the switching position, when the driving assembly is in the working position, the body is located in the limiting groove, when the driving assembly is in the switching position, the driving assembly drives the fixed shaft to move relative to the through hole, so that the body is located outside the limiting groove, and the body located outside the limiting groove can rotate relative to the knife holder; the elastic return member is provided between the driving assembly and the knife holder, and the elastic return member can drive the driving assembly to move from the switching position to the working position.

[0009] In one embodiment, the driving assembly includes a button, a transmission member and a rotating member, the button is connected to the transmission member, the rotating member is rotatably installed on a side of the transmission member facing away from the button, and one end of the rotating member away from the transmission member extends into the through hole and is connected to the fixed shaft; the button includes the working position and the switching position, and the button can reciprocate between the working position and the switching position. When the button is in the working position, the body is located in the limiting groove, and when the button is in the switching position, the button drives the fixed shaft to move relative to the through hole through the transmission member and the rotating member, so that the body is located outside the limiting groove, and the body located outside the limiting groove can drive the rotating member to rotate relative to the tool support through the fixed shaft; the elastic return member is located between the transmission member and the tool support, and the elastic return member can drive the button from the switching position to the working position through the transmission member.

[0010] In one embodiment, the transmission member includes a connecting part, a transmission part and an adjusting part, one end of the transmission part is rotatably connected to the rotating member, the other end of the transmission part passes through the adjusting part and is threadedly connected to the connecting part, the side of the connecting part away from the adjusting part is connected to the button, and the elastic return member is located between the adjusting part and the tool support, so that the elastic return member can drive the button to move from the switching position to the working position through the adjusting part and the connecting part.

[0011] In one embodiment, the rotating member is detachably connected to the fixed shaft;

[0012] and / or,

[0013] The button is detachably connected to the transmission member.

[0014] In one embodiment, a mounting hole is provided on the rotating member, and the fixed shaft is interference-fitted with the mounting hole.

[0015] In one embodiment, the thickness of the body is greater than the depth of the limiting groove.

[0016] In one embodiment, the knife rod includes a telescopic rod, the telescopic rod includes a telescopic area and a gripping area, the telescopic area is slidably matched with the gripping area, and the end of the telescopic area away from the gripping area is connected to the connecting member to form the angle between the gripping area and the knife support, and the scraper also includes a non-slip rubber pad, which is arranged on the gripping area.

[0017] In one embodiment, the angle is 25° to 35°;

[0018] and / or,

[0019] The triangular blade comprises a carbon alloy steel triangular blade.

[0020] The blade is then rotated 120° clockwise or counterclockwise relative to the support to switch the blade, and the fixer is then released so that the fixer can drive the triangular blade to return to its original position and fit the support again. The triangular blade is suitable for various plane structures of the car body to meet the needs of use. When the paint surface of the car body is a plane structure, the flat blade can be used to process the paint particles of the car body. When the paint surface of the car body is a concave structure, the convex blade can be used to process the paint particles of the car body. When the paint surface of the car body is a convex structure, the flat blade can be used to process the paint particles of the car body. The concave blade can be used to process the paint particles of the car body, so that the triangular blade can accurately fit the paint surface of the car body, and the paint particles of the car body can be flattened at one time, thereby improving the quality of the paint particle processing of the car body, avoiding the secondary adverse situation of scratching the paint surface of the car body caused by the single blade type and the non-fitting of the paint surface of the car body, and avoiding the situation that the paint particles of the car body are rough and need to be polished again, thereby effectively improving work efficiency; and the knife bar and the knife holder are connected by a connecting piece to form an angle between the knife bar and the knife holder, which conforms to ergonomic design and is more convenient to operate. Compared with the existing scraper with a 0° or 180° angle between the knife bar and the knife holder, it can improve the operating experience and avoid the triangular blade scratching the paint surface of the car body. During operation, the operator holds the knife bar so that the side of the blade facing away from the knife holder fits the paint surface of the car body, lightly presses the triangular blade and pushes the triangular blade forward at a constant speed, so that the particles on the paint surface of the car body can be flattened at one time without the need for re-polishing, thereby effectively improving working efficiency. The embodiment of the utility model adopts a triangular blade with three sides respectively provided with a flat blade, a concave blade and a convex blade, which can be applicable to various plane structures of the car body and meet the use requirements, so that the triangular blade can accurately fit the paint surface of the car body and flatten the paint particles of the car body at one time, thereby improving the quality and efficiency of the paint particle processing of the car body; by adopting a fixer to lock the triangular blade and the knife holder, and using the fixer to switch the blade, the structure is simple, easy to assemble and disassemble, convenient to operate, and time and labor are saved; by forming an angle between the knife rod and the knife holder, the operating experience is improved, it conforms to the ergonomic design, is more convenient to operate, and effectively improves the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 This is a structural diagram of an embodiment of a scraper blade of the present invention;

[0023] Figure 2 This is a schematic structural diagram from another perspective of an embodiment of the scraper of the utility model;

[0024] Figure 3 This is a structural diagram from another perspective of an embodiment of the scraper of the utility model;

[0025] Figure 4 This is a structural diagram of an embodiment of a blade of a scraper according to the present invention;

[0026] Figure 5 This is a structural diagram of an embodiment of a drive assembly of a scraper blade according to the present invention;

[0027] Figure 6 This is another structural schematic diagram of an embodiment of a drive assembly of a scraper blade according to the present invention;

[0028] Figure 7 This is a structural diagram of an embodiment of a transmission component of a scraper blade of the present invention;

[0029] Figure 8 This is a structural schematic diagram of another perspective of an embodiment of the transmission component of the scraper of the utility model;

[0030] Figure 9 This is a structural schematic diagram from another perspective of an embodiment of the transmission component of the scraper of the utility model.

[0031] Description of Figure Numbers:

[0032] 100, scraper; 1, handle; 11, blade bar; 111, telescopic rod; 1111, telescopic area; 1112, grip area; 12, connector; 2, blade head; 21, blade; 211, triangular blade; 2111, body; 21111, flat blade; 21112, concave blade; 21113, convex blade; 2112, fixed shaft; 22, blade support; 221, limit slot; 222, through hole; 23, Fixer; 231, drive assembly; 2311, button; 23111, working position; 23112, switching position; 2312, transmission part; 23121, connecting part; 23122, transmission part; 23123, adjustment part; 23124, positioning hole; 2313, rotating part; 23131, mounting hole; 232, elastic reset part; 233, first shell; 234, second shell; 3, anti-slip rubber pad.

[0033] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0035] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, and back), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0036] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] After the vehicle body is sprayed with the mid-coat, all the particles on the vehicle body need to be ground on the mid-coat inspection line. Usually, water grinding is used to grind the particles, but a large amount of grinding dust will be generated after grinding, which requires multiple wiping and dust removal processes. In some corners that cannot be wiped, there is still grinding dust remaining. When the top coating robot sprays, the dust will be blown onto the outer panel, eventually resulting in poor quality of the particles after coating.

[0038] To reduce the generation of grinding dust during particle grinding and reduce the occurrence of defects in the painted particles, particles within the baseline value are flattened with a scraper. Then, after spraying the top coat, the flattened particles are completely covered by the top coat, which can meet production needs. However, the existing scraper blades are of a single type and cannot be applied to various flat structures of the car body. In the use scenarios of concave and convex surfaces of the car body, the paint particles cannot be scraped flat and the blade can easily scratch the paint around the particle points, causing secondary defects. In addition, when processing car body paint particles on the plane, the existing scraper blade often does not fit the paint surface, resulting in rough treatment of the paint particle points, which requires further grinding, resulting in low efficiency in processing paint particles.

[0039] The main purpose of the utility model is to provide a scraper, aiming to solve the problem of how to improve the quality and efficiency of vehicle body paint particle processing.

[0040] See also Figures 1 to 4 In one embodiment of the present invention, the scraper 100 is used to process paint particles on a car body. The scraper 100 includes a handle 1 and a cutter head 2. The handle 1 includes a cutter bar 11 and a connector 12. The cutter head 2 includes a blade 21, a cutter holder 22, and a holder 23. The blade 21 includes a triangular blade 211. The cutter bar 11 and the cutter holder 22 are connected by the connector 12 so that an angle A is formed between the cutter bar 11 and the cutter holder 22. The holder 23 is connected to the cutter holder 22. The triangular blade 211 is connected to the holder 23. The triangular blade 211 is located on the side of the tool holder 22 away from the fixer 23, and the side of the triangular blade 211 away from the tool holder 22 is used to abut against the paint surface of the car body; the three sides of the triangular blade 211 are respectively provided with a flat blade 21111, a concave blade 21112 and a convex blade 21113, and the fixer 23 can drive the triangular blade 211 to move away from the tool holder 22 so that the triangular blade 211 can be separated from the tool holder 22, and the triangular blade 211 can rotate relative to the tool holder 22.

[0041] In the embodiment of the present invention, the triangular blade 211 is locked with the knife holder 22 by the fixer 23, so that the side of the triangular blade 211 away from the knife holder 22 can abut against the paint surface of the vehicle body to process the paint surface particles of the vehicle body. The triangular blade 211 is an equilateral triangular blade, which is an equilateral triangular thin block structure. The three sides of the triangular blade 211 are respectively provided with a flat blade 21111, a concave blade 21112 and a convex blade 21113. When switching the blade, the triangular blade 211 is driven by the fixer 23 to move away from the knife holder 22, so that the triangular blade 211 The blade 211 can be separated from the knife holder 22, and then the triangular blade 211 can be rotated 120 degrees clockwise or counterclockwise relative to the knife holder 22 to switch the blade, and then the holder 23 can be loosened so that the holder 23 can drive the triangular blade 211 to return to its original position and fit into the knife holder 22 again. The structure is simple, easy to assemble and disassemble, easy to operate, and time-saving and labor-saving; the triangular blade 211 can be suitable for various plane structures of the car body to meet the use requirements. When the paint surface of the car body is a flat structure, the flat blade 21111 can be used to process the paint surface particles of the car body, and when the paint surface of the car body is a concave structure, the flat blade 21111 can be used to process the paint surface particles of the car body. The convex blade 21113 processes the paint particles on the body of the vehicle. When the paint surface of the body of the vehicle is a convex structure, the concave blade 21112 can be used to process the paint particles on the body of the vehicle. The triangular blade 211 can accurately fit the paint surface of the body of the vehicle and scrape the paint particles on the body of the vehicle flat at one time, avoiding the situation where the paint surface of the body of the vehicle is scratched due to the single blade type not fitting the paint surface of the body and causing secondary defects, and the situation where the paint particles on the body of the vehicle are rough and need to be polished again, thereby effectively improving the quality and efficiency of the paint particle processing of the body of the vehicle. The knife bar 11 and the knife holder 22 are connected by the connecting piece 12 so that the knife bar 11 and the knife holder 22 are connected. The angle A formed between the knife holders 22 conforms to the ergonomic design and is more convenient to operate. Compared with the existing scraper 100 with a 0° or 180° angle between the knife rod 11 and the knife holder 22, it can improve the operating experience and prevent the triangular blade 211 from scratching the paint surface of the car body. During operation, the operator holds the knife rod 11 so that the side of the blade 21 facing away from the knife holder 22 is in contact with the paint surface of the car body. The triangular blade 211 is lightly pressed and pushed forward at a constant speed. The particles on the paint surface of the car body can be scraped flat at one time without the need for re-polishing, which effectively improves the working efficiency.

[0042] The technical solution of the present invention adopts a triangular blade 211 with three sides respectively provided with a flat blade 21111, a concave blade 21112 and a convex blade 21113, which can be suitable for various plane structures of the vehicle body and meet the use requirements, so that the triangular blade 211 can accurately fit the paint surface of the vehicle body and flatten the paint particles of the vehicle body at one time, thereby improving the quality and efficiency of the paint particle processing of the vehicle body; by adopting a fixer 23 to lock the triangular blade 211 and the knife holder 22, and by using the fixer 23 to switch the blade, the structure is simple, easy to assemble and disassemble, convenient to operate, and time and labor are saved; by forming an angle A between the knife rod 11 and the knife holder 22, the operating experience is improved, it conforms to ergonomic design, is more convenient to operate, and effectively improves the working efficiency.

[0043] See also Figure 6 In one embodiment, a limiting groove 221 for accommodating the triangular blade 211 is provided on the tool holder 22, and the groove wall of the limiting groove 221 can limit the rotation of the triangular blade 211 located in the limiting groove 221; specifically, the limiting groove 221 is abraded on the side of the tool holder 22 away from the fixer 23. By setting the limiting groove 221, the triangular blade 211 can be prevented from rotating relative to the tool holder 22 when the triangular blade 211 processes the paint particles on the car body, thereby improving the stability of the connection of the triangular blade 211 and preventing the triangular blade 211 from loosening and scratching the paint surface of the car body during operation.

[0044] See also Figures 4 to 6In one embodiment, the holder 23 includes a driving assembly 231 and an elastic reset member 232. The knife holder 22 is further provided with a through hole 222 connected to the limiting groove 221. The triangular blade 211 includes a main body 2111 and a fixed shaft 2112 connected thereto. The three sides of the main body 2111 are respectively provided with a flat blade 21111, a concave blade 21112 and a convex blade 21113. The limiting groove 221 is used to accommodate the main body 2111. The groove wall of the limiting groove 221 can limit the rotation of the main body 2111 located in the limiting groove 221. The driving assembly 231 extends into the through hole 222 and is in contact with the main body 2111. The fixed shaft 2112 is connected, and the driving component 231 includes a working position 23111 and a switching position 23112. The driving component 231 can reciprocate between the working position 23111 and the switching position 23112. When the driving component 231 is in the working position 23111, the body 2111 is located in the limiting groove 221. When the driving component 231 is in the switching position 23112, the driving component 231 drives the fixed shaft 2112 to move relative to the through hole 222, so that the body 2111 is located outside the limiting groove 221. The body 2111 located outside the limiting groove 221 can rotate relative to the knife holder 22; The elastic reset member 232 is arranged between the driving assembly 231 and the knife holder 22, and the elastic reset member 232 can drive the driving assembly 231 to move from the switching position 23112 to the working position 23111; specifically, when the driving assembly 231 is in the working position 23111, the body 2111 is located in the limiting groove 221, and at this time, the side of the body 2111 facing away from the knife holder 22 is used to abut against the paint surface of the vehicle body to process the paint surface particles of the vehicle body; when the driving assembly 231 moves from the working position 23111 to the switching position 23112, the driving assembly 231 can drive the body 2111 through the fixed shaft 2112 Move in the direction away from the limiting groove 221 so that the main body 2111 is located outside the limiting groove 221. At this time, the operator can rotate the main body 2111 120° clockwise or counterclockwise to replace the blade on the main body 2111 to adapt to different vehicle body plane structures; after the blade is replaced, the drive assembly 231 is released, and the elastic reset member 232 drives the drive assembly 231 to move from the switching position 23112 to the working position 23111, so that the drive assembly 231 drives the main body 2111 to be re-located in the limiting groove 221 through the fixed shaft 2112 to perform the vehicle body paint particle processing operation.

[0045] In one embodiment, the driving assembly 231 includes a button 2311, a transmission member 2312 and a rotating member 2313. The button 2311 is connected to the transmission member 2312. The rotating member 2313 is rotatably installed on the side of the transmission member 2312 away from the button 2311. The end of the rotating member 2313 away from the transmission member 2312 extends into the through hole 222 and is connected to the fixed shaft 2112. The button 2311 includes a working position 23111 and a switching position 23112. The button 2311 can reciprocate between the working position 23111 and the switching position 23112. The button 2311 is in the working position 23111. When the body 2111 is located in the limiting groove 221, and the button 2311 is in the switching position 23112, the button 2311 drives the fixed shaft 2112 to move relative to the through hole 222 through the transmission member 2312 and the rotating member 2313, so that the body 2111 is located outside the limiting groove 221. The body 2111 located outside the limiting groove 221 can drive the rotating member 2313 to rotate relative to the knife holder 22 through the fixed shaft 2112; the elastic reset member 232 is located between the transmission member 2312 and the knife holder 22, and the elastic reset member 232 can drive the button 2311 to move from the switching position 23112 through the transmission member 2312 23. When the tool 2311 is moved from the working position 23111 to the switching position 23112, the button 2311 can drive the body 2111 to move away from the limiting groove 221 through the transmission member 2312, the rotating member 2313 and the fixed shaft 2112 so that the body 2111 is located outside the limiting groove 221. At this time, the operator can rotate the body 2111 clockwise Or rotate 120° counterclockwise, the main body 2111 drives the rotating part 2313 to rotate relative to the transmission part 2312 and the knife holder 22 through the fixed shaft 2112, so as to replace the blade on the main body 2111 to adapt to different vehicle body plane structures; after the blade is replaced, release the button 2311, and the elastic reset part 232 drives the button 2311 to move from the switching position 23112 to the working position 23111 through the transmission part 2312, and the transmission part 2312 can drive the main body 2111 to be re-located in the limiting groove 221 through the rotating part 2313 and the fixed shaft 2112 to perform the vehicle body paint particle processing operation.

[0046] See also Figures 5 to 9In one embodiment, the transmission member 2312 includes a connecting portion 23121, a transmission portion 23122 and an adjusting portion 23123. One end of the transmission portion 23122 is rotatably connected to the rotating member 2313. The other end of the transmission portion 23122 passes through the adjusting portion 23123 and is threadedly connected to the connecting portion 23121. The side of the connecting portion 23121 away from the adjusting portion 23123 is connected to the button 2311. The elastic return member 232 is located between the adjusting portion 23123 and the knife holder 22 so that the elastic return member 232 can pass through the adjusting portion. 23123 and the connecting portion 23121 drive the button 2311 to move from the switching position 23112 to the working position 23111; specifically, in order to realize the transmission connection between the transmission member 2312 and the button 2311 and the rotating member 2313, the connecting portion 23121 can be a nut, one end of the transmission member 23122 is provided with a slot for rotationally connecting with the rotating member 2313, the other end of the transmission member 23122 passes through the adjusting portion 23123 and is provided with a threaded section threadedly connected to the nut, and the end of the nut away from the threaded section is connected to the button 2311 The adjusting portion 23123 is located between the nut and the rotating member 2313, and the looseness or tightness between the adjusting portion 23123 and the rotating member 2313 can be adjusted by adjusting the threaded fit between the nut and the threaded segment, thereby meeting the requirement of switching the blade of the triangular blade 211. In addition, in this embodiment, the elastic reset member 232 can be a spring plunger, and the adjusting portion 23123 is provided with positioning holes 23123 at intervals along the circumferential direction. 124, one end of the spring plunger passes through the positioning hole 23124, and the other end of the spring plunger is connected to the knife holder 22. When the button 23111 moves from the working position 23111 to the switching position 23112, the spring plunger is in a compressed state, so that the body 2111 can be located outside the limiting groove 221. After the button 23111 is released, the spring plunger drives the button 23111 to move from the switching position 23112 to the working position 23111 through the adjusting portion 23123 and the connecting portion 23121, so that the body 2111 can be located in the limiting groove 221.

[0047] According to one embodiment of the present invention, the elastic return member 232 can be a spring, which is sleeved on the outer wall of the rotating member 2313, and the two ends of the spring are respectively connected to the adjustment part 23123 and the knife holder 22, so that the spring can drive the button 2311 to move from the switching position 23112 to the working position 23111 through the adjustment part 23123 and the connecting part 23121.

[0048] In this embodiment, the fixer 23 also includes a first shell 233 and a second shell 234. The first shell 233 and the second shell 234 are respectively arranged on both sides of the adjustment portion 23123. The end of the first shell 233 away from the adjustment portion 23123 is connected to the button 2311, and the end of the second shell 234 away from the adjustment portion 23123 is connected to the knife holder 22. By setting the first shell 233 and the second shell 234, it is possible to prevent debris from entering the interior of the fixer 23, causing damage to the internal structure of the fixer 23 and affecting the service life of the fixer 23.

[0049] In one embodiment, the rotating member 2313 is detachably connected to the fixed shaft 2112; and / or the button 2311 is detachably connected to the transmission member 2312; specifically, the rotating member 2313 and the fixed shaft 2112 can be detachably connected by bolt connection or snap connection, which has a simple structure and is easy to assemble and disassemble. When the triangular blade 211 is worn, the triangular blade 211 can be replaced without the need for overall scrapping, which can improve the utilization rate of the scraper 100 and reduce production costs; an external thread is provided on the button 2311, and an internal thread matching the external thread is provided on the transmission member 2312, thereby realizing the detachable connection between the button 2311 and the transmission member 2312, which has a simple structure, is easy to assemble and disassemble, and has a stable connection.

[0050] In one embodiment, a mounting hole 23131 is provided on the rotating part 2313, and the fixed shaft 2112 is interference fit with the mounting hole 23131; specifically, the connection between the rotating part 2313 and the fixed shaft 2112 is achieved by interference fit between the fixed shaft 2112 and the mounting hole 23131, which can reduce the number of parts, simplify the mechanical structure, reduce costs, and be easy to implement and manufacture. The interference fit can provide higher coaxial accuracy, so that the rotating part 2313 and the fixed shaft 2112 can be well aligned, reducing the possibility of eccentricity and shaking, and there is no problem of looseness and wear. The reliability is high and stable working performance can be maintained for a long time.

[0051] In one embodiment, the thickness of the main body 2111 is greater than the depth of the limiting groove 221; specifically, when the button 2311 is located in the working position 23111, the main body 2111 is located in the limiting groove 221, and the thickness of the main body 2111 is greater than the depth of the limiting groove 221, so that at least part of the structure of the main body 2111 can extend out of the limiting groove 221, thereby avoiding the knife support 22 from contacting the paint surface of the vehicle body and damaging the coating film.

[0052] See also Figure 3In one embodiment, the blade 11 includes a telescopic rod 111, which includes a telescopic area 1111 and a gripping area 1112. The telescopic area 1111 and the gripping area 1112 are slidably engaged with each other. The end of the telescopic area 1111 away from the gripping area 1112 is connected to the connecting member 12 so that an angle A is formed between the gripping area 1112 and the blade holder 22. The scraper 100 also includes an anti-slip rubber pad 3, which is arranged in the gripping area 1112. Specifically, the scraper 100 can change the length of the blade 11 through the sliding engagement of the telescopic area 1111 and the gripping area 1112, thereby improving the practicality of the scraper 100. By providing the anti-slip rubber pad 3 in the gripping area 1112, the operator's gripping experience can be optimized. The scraper 100 solves the problems of the existing scraper 100, such as being bulky, inconvenient to use, having a poor grip, and insufficient length of the blade 11 when processing paint particles on the car body at a farther end.

[0053] In this embodiment, the knife rod 11 also includes a button, which is connected to the end of the gripping area 1112 away from the telescopic area 1111. A locking pin is provided on the gripping area 1112, and a limiting hole is provided on the telescopic area 1111 corresponding to the locking pin. The button is transmission-connected with the locking pin, and the button is used to drive the locking pin to move out of the limiting hole; when the knife rod 11 is extended, the telescopic area 1111 is manually pulled to slide relative to the gripping area 1112 until the automatic locking pin extends into the limiting hole to limit the sliding of the telescopic area 1111 relative to the gripping area 1112. At this time, the paint particle processing work of the vehicle body can be carried out. After the work is completed, press the button, and the button drives the locking pin to move out of the limiting hole, so that the telescopic area 1111 can slide to the original position relative to the gripping area 1112.

[0054] According to one embodiment of the present invention, the telescopic rod 111 includes an electric telescopic rod, which can be extended or retracted by a button or a remote control without any effort, and the operation is convenient and quick. In addition, the electric telescopic rod can reduce the time and difficulty of manual operation and improve work efficiency through automated control and precise positioning.

[0055] See also Figure 3In one embodiment, the angle A is 25° to 35°; and / or the triangular blade 211 includes a carbon alloy steel triangular blade; specifically, an angle A is formed between the knife bar 11 and the knife holder 22, and the angle A is 25° to 35°, which conforms to the ergonomic design and is more convenient to operate. Compared with the existing scraper 100 with a 0° or 180° angle between the knife bar 11 and the knife holder 22, it can improve the operating experience and prevent the triangular blade 211 from scratching the paint surface of the car body. During operation, the operator holds the knife bar 11 so that the side of the blade 21 facing away from the knife holder 22 is in contact with the paint surface of the car body, and lightly presses the triangular blade 211 and pushes the triangular blade 211 forward at a uniform speed, so that the particles on the paint surface of the car body can be scraped flat at one time, thereby effectively improving the working efficiency. Preferably, in this embodiment In the embodiment, the angle A between the shank 11 and the blade holder 22 is 30°; by adopting a carbon alloy steel triangular blade, the hardness of the triangular blade 211 is improved, ensuring that the blades on the three sides of the triangular blade 211 are sharp, strong and not easy to deform, and can avoid scratching the paint surface of the car body due to deformation of the blade when it is in contact with the paint surface of the car body. It can also ensure that the triangular blade 211 will not wear and become blunt when used for a long time. Compared with the blade of the existing scraper 100, there is no need to polish the blade frequently, which reduces the work preparation time and improves work efficiency. In addition, the blade of the existing scraper 100 will become unusable after being polished many times because the blade 21 is worn too short, causing the shank 11 to contact the car body. The use of a carbon alloy steel triangular blade also increases the service life and reduces the production cost.

[0056] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A scraper for processing paint particles on automobile bodies, characterized in that: The scraper blade includes a handle and a cutter head, the handle includes a knife rod and a connecting piece, the knife head includes a blade, a knife holder and a fixer, the blade includes a triangular blade, the knife rod and the knife holder are connected by the connecting piece so that an angle is formed between the knife rod and the knife holder, the fixer is connected to the knife holder, and the triangular blade is connected to the fixer, the triangular blade is located on the side of the knife holder away from the fixer, and the side of the triangular blade away from the knife holder is used to abut the paint surface of the car body; the three sides of the triangular blade are respectively provided with a flat blade edge, a concave blade edge and a convex blade edge, the fixer can drive the triangular blade to move in a direction away from the knife holder so that the triangular blade can be separated from the knife holder, and the triangular blade can rotate relative to the knife holder.

2. The scraper according to claim 1, wherein: The knife holder is provided with a limiting groove for accommodating the triangular blade, and the groove wall of the limiting groove can limit the rotation of the triangular blade located in the limiting groove.

3. The scraper according to claim 2, wherein: The fixing device comprises a driving assembly and an elastic return member, the knife holder is further provided with a through hole connected to the limiting groove, the triangular blade comprises a connected body and a fixed shaft, the three sides of the body are respectively provided with the flat blade, the concave blade and the convex blade, the limiting groove is used to accommodate the body, the groove wall of the limiting groove can limit the rotation of the body located in the limiting groove, the driving assembly extends into the through hole and is connected to the fixed shaft, the driving assembly comprises a working position and a switching position, the driving assembly can reciprocate between the working position and the switching position, when the driving assembly is in the working position, the body is located in the limiting groove, when the driving assembly is in the switching position, the driving assembly drives the fixed shaft to move relative to the through hole so that the body is located outside the limiting groove, and the body located outside the limiting groove can rotate relative to the knife holder; the elastic return member is provided between the driving assembly and the knife holder, and the elastic return member can drive the driving assembly to move from the switching position to the working position.

4. The scraper according to claim 3, wherein: The driving assembly includes a button, a transmission member and a rotating member, the button being connected to the transmission member, the rotating member being rotatably installed on a side of the transmission member facing away from the button, and one end of the rotating member away from the transmission member extending into the through hole and connected to the fixed shaft; the button includes the working position and the switching position, and the button can reciprocate between the working position and the switching position. When the button is in the working position, the body is located in the limiting groove, and when the button is in the switching position, the button drives the fixed shaft to move relative to the through hole through the transmission member and the rotating member, so that the body is located outside the limiting groove, and the body located outside the limiting groove can drive the rotating member to rotate relative to the tool support through the fixed shaft; the elastic return member is located between the transmission member and the tool support, and the elastic return member can drive the button from the switching position to the working position through the transmission member.

5. The scraper according to claim 4, wherein: The transmission member includes a connecting part, a transmission part and an adjusting part. One end of the transmission part is rotatably connected to the rotating member, and the other end of the transmission part passes through the adjusting part and is threadedly connected to the connecting part. The side of the connecting part away from the adjusting part is connected to the button. The elastic return member is located between the adjusting part and the tool holder, so that the elastic return member can drive the button to move from the switching position to the working position through the adjusting part and the connecting part.

6. The scraper according to claim 4, wherein: The rotating member is detachably connected to the fixed shaft; and / or, The button is detachably connected to the transmission member.

7. The scraper blade according to claim 4, wherein: The rotating member is provided with a mounting hole, and the fixed shaft is interference-fitted with the mounting hole.

8. The scraper according to claim 3, wherein: The thickness of the body is greater than the depth of the limiting groove.

9. The scraper blade according to any one of claims 1 to 8, characterized in that The knife bar includes a telescopic rod, which includes a telescopic area and a gripping area. The telescopic area is slidably matched with the gripping area. The end of the telescopic area away from the gripping area is connected to the connecting piece so that the angle is formed between the gripping area and the knife support. The scraper also includes a non-slip rubber pad, which is arranged on the gripping area.

10. The scraper blade according to any one of claims 1 to 8, characterized in that The angle is 25° to 35°; and / or, The triangular blade comprises a carbon alloy steel triangular blade.

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