Single-blade haircut tool

By employing a sliding locking pin and push rod design in the blade holder assembly of the single-blade hairdressing tool, the problems of unstable blade fixation and difficult disassembly are solved, enabling a safe and efficient replacement process and ensuring operational stability and safety.

CN121572373APending Publication Date: 2026-02-27陈子俊
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Patent Information

Application Number
CN202511884226.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-15
Publication Date
2026-02-27

AI Technical Summary

Technical Problem

In existing technologies, the blade fixing structure is not secure, the disassembly and replacement process is laborious, and there is a safety hazard of cutting fingers.

Method used

The tool holder assembly is made of one piece and is mechanically locked or unlocked by a sliding locking pin. The tool holder assembly is locked and unlocked at the upper part away from the blade to avoid direct contact with the blade area. Combined with the push rod quick disassembly design, it ensures safety and efficiency.

Benefits of technology

This improves the stability of the blade fixing structure and the safety of the replacement operation, avoids the risk of finger cuts, and enhances replacement efficiency and operational safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The tool comprises a first scissor arm and a second scissor arm, a scissor part of the first scissor arm is provided with a detachably-connected scissor seat assembly, a scissor platform part of the second scissor arm is provided with a detachably-connected scissor platform, a scissor seat of the scissor seat assembly comprises a base and a vertical plate, and at least two inserting grooves are formed in the top of the vertical plate; the lower end of the front wall of the inserting groove extends forwards to form a clamping groove, an inserting hole corresponding to the inserting groove is formed in the top face of the scissor part, the sliding lock pin penetrates through the inserting hole to be arranged in the inserting groove, a clamping hook matched with the clamping groove is arranged at the front end of the sliding lock pin, the inserting hole moves the sliding lock pin, clamping or separation of the clamping hook and the clamping groove is achieved, and locking or unlocking operation of the scissor holder is completed. The operation area is arranged on the upper portion away from the blade, the sliding lock pin is arranged, and the fixing structure is firm and stable; when the tool apron assembly is disassembled, a hand does not need to directly contact a cutting edge area, the finger cutting risk is avoided, and the safety and efficiency of replacement operation are improved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hair cutting tools, in particular to a single-blade hair cutting tool. BACKGROUND

[0002] Traditional scissors-type hair cutting tools adopt two relatively arranged blades to realize hair cutting through extrusion and occlusion between the two blades. In this process, the hair appears to be convex at the center line due to the pressure applied from both sides, resulting in unnatural cutting edges and problems such as insufficient hair tail neatness and unstable hair drop points. In addition, since the hair cutting action is transmitted from the intersection of the blades to the end, the hair near the intersection is cut first, and the hair far away is cut later, causing the hair cutting process to be unable to be completed synchronously in the entire blade range, resulting in limited hair cutting trajectory and poor directionality. Moreover, if the blade is not sharp enough, it is more likely to cause pulling and clamping, damaging the hair scales and making the hair surface rough, which adversely affects the hair quality.

[0003] Therefore, the utility model discloses a hair cutting scissors, including first handle and second handle that are connected through hinging, and the blade and the supporting table arranged at the end of the handle, when the two handles are closed, the blade is abutted on the rubber knife table, realizing the cutting mode similar to cutting vegetables, making the hair form the bevel cut from the single side direction, effectively controlling the cutting angle and the trend of the hair, and realizing the diversified three-dimensional cutting effect. However, in the scheme, the blade assembly includes a blade outer sleeve, a blade wrapping layer and a blade nested in sequence, the blade wrapping layer is slid into the blade outer sleeve together with the blade, and is fixed through the clamping structure of the convex position and the concave position, the firmness of the blade fixing structure is poor, and looseness or falling off is easy to occur in the use process, thereby affecting the hair cutting precision and operation safety; in addition, the clamping connection structure is laborious to disassemble and replace, and has the safety hazard of cutting fingers. SUMMARY

[0004] In view of the above defects, the technical problem to be solved by the present application is to provide a single-blade hair cutting tool to solve the problems of poor firmness of the blade fixing structure in the prior art, laborious disassembly and replacement process, and safety hazard of cutting fingers.

[0005] Therefore, the present application provides a single-blade hair cutting tool, which comprises a first cutting arm and a second cutting arm connected by hinging, the first cutting arm comprising a scissors part, a first hinging part and a first handle part in sequence, the second cutting arm comprising a blade table part, a second hinging part and a second handle part in sequence, the scissors part being provided with a detachably connected blade seat assembly, the blade table part being provided with a detachably connected blade table, and further comprising a sliding lock pin for locking and unlocking.

[0006] The knife seat assembly comprises a knife blade and a knife seat, the knife blade is integrally formed on the knife seat, the cutting edge of the knife blade protrudes from the bottom surface of the knife seat and is arranged towards the direction of the knife rest. The bottom surface of the knife seat comprises a base, the width of the base is smaller than the overall width of the scissors part; the top surface of the base is provided with a vertical plate, at least two insertion slots are formed on the top of the vertical plate, the front wall of the insertion slot extends forward to form a clamping groove at the lower end, which is used for mechanical locking.

[0007] The bottom surface of the scissors part is provided with a knife seat groove matched with the shape of the vertical plate, and the top surface is provided with an insertion hole corresponding to the insertion slot, the insertion hole penetrates into the knife seat groove to form a through structure, which facilitates the installation and operation of the sliding lock pin.

[0008] The sliding lock pin is composed of a push plate and a sliding block, which are connected as an integral structure through a connecting block. The front end of the sliding block is provided with a clamping hook, the shape of the clamping hook is matched with the shape of the clamping groove, when the vertical plate is inserted into the knife seat groove, the sliding lock pin passes through the insertion hole from above and is embedded into the corresponding insertion slot.

[0009] The sliding lock pin is configured: pushing the push plate can drive the sliding block to slide along the insertion hole, so as to realize the clamping or disengagement of the clamping hook and the clamping groove, and then complete the locking or unlocking operation of the knife seat.

[0010] Based on the above technical scheme, the operation area is arranged at the upper part away from the cutting edge, the sliding lock pin is arranged at the upper part, the knife seat assembly is locked and unlocked, the fixing structure is firm and stable; in addition, when disassembling the knife seat assembly, the cutting edge area does not need to be directly contacted by hand, the risk of finger injury is avoided, and the safety and efficiency of replacement operation are improved.

[0011] Further, in the above technical preferred embodiment, preferably, a push rod is arranged between the two insertion slots on the vertical plate, a through hole is arranged on the top surface of the scissors part corresponding to the push rod, the push rod is arranged to pass through the through hole, the knife seat can be disengaged by pressing the push rod, the quick disassembly is completed, and the cutting edge does not need to be contacted during the disassembly process, so the safety is high.

[0012] In another preferred embodiment of the above technology, the knife rest comprises a table surface and a mounting plate arranged on the bottom surface of the table surface, the top surface of the knife rest part is provided with a knife rest groove, the shape of the mounting plate is matched with the knife rest groove, the mounting plate can be inserted into the knife rest groove and fixed by screws. This structure realizes the quick installation and stable connection of the knife rest, improves the assembly efficiency and use stability.

[0013] Further, the cross section of the platform is isosceles trapezoidal, the top surface is a flat plane, and the two sides extend downward and outward, and the platform is connected to the two sides of the mounting plate through a slope. On the one hand, the slope design is beneficial to the smooth falling of the hair after cutting, avoids the accumulation of hair to block the view, and ensures that the hairdresser can clearly observe the cutting area; on the other hand, the slope is closely fitted with the inner wall of the cutter slot, effectively reduces the fitting gap, prevents the hair from entering the inside of the cutter slot, avoids the accumulation of foreign matter to cause the cutter to loosen or deviate, and enhances the reliability and service life of the overall structure.

[0014] In another preferred embodiment, the first hinge part is provided with a first connecting hole, and the second hinge part is provided with a second connecting hole, and the two are rotatably connected through a rotating shaft member. The rotating shaft member includes a fastening bolt and an adjusting nut, and the fastening bolt passes through the first connecting hole and the second connecting hole in sequence and is fixed by the adjusting nut. The outer end of the first connecting hole is provided with a counterbore, and the head of the fastening bolt is embedded therein to keep the external surface smooth and beautiful; the first connecting hole is a circular through hole, and the second connecting hole is a double flat hole or a D-shaped hole, so that the fastening bolt rod and the second connecting hole form a rotation prevention fit. By rotating the adjusting nut, the pre-tightening force between the first cutting arm and the second cutting arm can be flexibly adjusted to meet the individual needs of different users for the tightness of the hand feeling, and the operation comfort and cutting precision are effectively improved.

[0015] Further, the first handle part is provided with a first finger ring, and the second handle part is provided with a second finger ring, which are respectively adapted to the thumb and the index finger of the hairdresser, in line with the ergonomic design, comfortable and natural to hold, labor-saving and efficient to operate.

[0016] In another preferred design, the width of the base is less than the overall width of the cutter, and the front and rear ends of the base extend outward relative to the two ends of the stand to form an enclosing plate structure. The enclosing plate can effectively seal the gap between the front and rear ends of the cutter seat groove, block the hair from entering the inside of the groove, prevent the cutter seat assembly from loosening due to the accumulation of foreign matter, and thus ensure the high precision and running stability during the cutting process.

[0017] In addition, the width of the connecting block is less than the total width of the push plate and the sliding block, the rear section width of the jack is matched with the connecting block, and the front section width is matched with the sliding block, so that the connecting block can freely slide in the length direction of the jack, and at the same time, a limiting structure is formed in the vertical direction to effectively prevent the sliding locking pin from accidentally falling off, greatly improving the use safety and structural reliability.

[0018] In a preferred embodiment, a plurality of parallel strip-shaped grooves are formed in the cutter along the length direction of the platform, and the strip-shaped grooves penetrate through the width direction of the platform, which can adapt to various hair style trimming and styling needs, and enhance the functional diversity and application range of the tool.

[0019] Furthermore, the top surface of the push plate adopts an arc-shaped design and is provided with anti-slip protrusions at intervals, which makes it easier for fingers to apply force to push, improving the operating feel and control precision.

[0020] In summary, the single-blade hair clipper provided by this invention solves the technical defects of existing technologies, such as unstable blade fixation, difficulty in replacement, and the risk of cuts. Compared with traditional structures, this application has the following significant advantages:

[0021] The blade and blade holder are integrally molded. The blade holder has a slot with a groove at the front end. The top surface of the scissor section has a corresponding insertion hole. The sliding locking pin has a hook that matches the groove. The sliding locking pin passes through the insertion hole and inserts into the slot. The sliding locking pin reliably engages or quickly disengages the hook from the groove, thus achieving a secure lock or easy unlocking of the blade holder. The entire locking mechanism is located in the upper, non-cutting edge area of ​​the scissor section, away from the blade. This ensures structural robustness and operational stability, and eliminates the risk of finger cuts when disassembling the blade holder assembly without requiring hand contact with the blade area, improving the safety and efficiency of the replacement operation. Attached Figure Description

[0022] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments of the present invention or the prior art will be briefly introduced and explained below. Obviously, the drawings described below are only some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the single-blade hairdressing tool provided by the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of the rear view of the single-blade hair clipper shown;

[0025] Figure 3 for Figure 1 A schematic diagram of the assembly of the rotating shaft component in the single-blade hair clipper shown;

[0026] Figure 4 for Figure 1 The diagram shows the exploded structure of a single-blade hair clipper.

[0027] Figure 5 for Figure 1 A longitudinal cross-sectional view of the single-blade barber tool shown;

[0028] Figure 6 for Figure 1 A cross-sectional view of the single-blade barber tool shown.

[0029] Figure 7 Figure 1 is a schematic diagram of the knife seat assembly in the present application;

[0030] Figure 8 Figure 2 is a schematic diagram of the first shear arm in the present application;

[0031] Figure 9 Figure 3 is a schematic diagram of the first shear arm in the present application; Figure 8

[0032] Figure 10 Figure 4 is a schematic diagram of the sliding lock pin in the present application;

[0033] Figure 11 Figure 5 is a schematic diagram of the knife table and the second shear arm in the present application;

[0034] Figure 12 Figure 6 is a schematic diagram of one embodiment of the knife table in the present application;

[0035] Figure 13 Figure 7 is a schematic diagram of the knife table in the present application; Figure 12

[0036] Figure 14 Figure 8 is a schematic diagram of another embodiment of the knife table in the present application;

[0037] Figure 15 Figure 9 is a schematic diagram of the third embodiment of the knife table in the present application.

[0038] Figures 1-15 In the present application, the corresponding relationship of the parts is as follows:

[0039] The first shear arm 10, the second shear arm 20, the knife seat assembly 30, the knife table 40, the sliding lock pin 50, and the rotating shaft component 60;

[0040] The shear part 11, the first hinged part 12, the first handle part 13, and the first ring 14;

[0041] The knife table part 21, the second hinged part 22, the second handle part 23, and the second ring 24;

[0042] The blade 31 and the knife seat 32;

[0043] The knife seat groove 111, the insertion hole 112, and the through hole 113;

[0044] The knife table groove 211;

[0045] The base 321, the vertical plate 322, the insertion slot 323, the push rod 324, the clamping slot 325, and the sealing plate 326;

[0046] The table surface 41, the mounting plate 42, the screw 43, the strip-shaped slot 44, and the slope 45;

[0047] ​​Pushing plate 51, sliding block 52, connecting block 53, clamping hook 54, anti-skid convex rib 55;

[0048] Fastening bolt 61, adjusting nut 62, gasket 63. DETAILED DESCRIPTION

[0049] The technical solutions of the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings of the embodiments of the present application. Obviously, the following described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0050] In order to make the technical solutions and embodiments of the present application clearer and more understandable, several preferred specific embodiments for implementing the technical solutions of the present application are introduced below.

[0051] It should be noted that the orientation words such as "inner", "outer", "front", "rear", "left" and "right" in this paper are described based on the product use state as the reference object. Obviously, the use of the corresponding orientation words does not constitute a limitation on the protection scope of the present application.

[0052] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , the present application provides a single-blade hair cutting tool, which comprises a first shear arm 10 and a second shear arm 20 connected by a hinge. Wherein, the first shear arm 10 comprises a scissors part 11, a first hinge part 12 and a first handle part 13 in sequence; the second shear arm 20 comprises a knife table part 21, a second hinge part 22 and a second handle part 23 in sequence.

[0053] The scissors part 11 is provided with a detachable knife seat assembly 30, and the first handle part 13 is provided with a first ring 14. The knife table part 21 is provided with a detachable knife table 40, the knife seat assembly 30 is arranged opposite to the knife table 40, and the second handle part 23 is provided with a second ring 24. The first ring 14 and the second ring 24 are respectively adapted to the thumb and the index finger of a hairdresser, used to control the relative rotation of the first shear arm 10 and the second shear arm 20 around the hinge point, so that the knife seat assembly 30 is pressed against the knife table 40 to realize the hair cutting operation, while ensuring that the fingers are stably attached during the operation to prevent slipping and falling off.

[0054] Please also refer to Figure 6 , the knife seat assembly 30 comprises a blade 31 and a knife seat 32, the blade 31 is integrally formed on the knife seat 32, and the cutting edge part of the blade 31 protrudes from the bottom surface of the knife seat 32 and is arranged towards the knife table 40 to form a hair cutting cooperation.

[0055] Please also refer to Figure 7 The base 321 has a top surface provided with a vertical plate 322, and the top of the vertical plate 322 is provided with two insertion slots 323, and a push rod 324 is arranged between the two insertion slots 323. The front wall of the insertion slot 323 extends forward to form a clamping groove 325 at the lower end, which is used to cooperate with the sliding lock pin 50 to realize locking and unlocking of the cutter seat assembly 30.

[0056] As shown in Figure 8 , Figure 9 , the bottom surface of the scissors part 11 is provided with a cutter seat groove 111 matched with the shape of the vertical plate 322, and the top surface of the scissors part 11 is provided with two insertion holes 112 and a through hole 113 corresponding to the insertion slots 323 and the push rod 324 respectively.

[0057] As shown in Figure 10 , the sliding lock pin 50 includes a push plate 51 and a sliding block 52, which are connected through a connecting block 53 to form an integrated structure. The front end of the sliding block 52 is provided with a clamping hook 54 matched with the clamping groove 325 in shape, which is configured to move the sliding block 52 along the insertion hole 112 by driving the push plate 51, realize the clamping or disengagement of the clamping hook 54 and the clamping groove 325, and then complete the locking or unlocking operation of the cutter seat 32.

[0058] The width of the connecting block 53 is smaller than the width of the push plate 51 and the sliding block 52, the rear section of the insertion hole 112 is matched with the connecting block 53 in width, and the front section is matched with the sliding block 52 in width, so that the connecting block 53 can slide freely in the length direction of the insertion hole 112 and be limited in the vertical direction to prevent the sliding lock pin 50 from falling off.

[0059] The installation and disassembly process of the cutter seat 32 is as follows:

[0060] When installing the cutter seat 32, the vertical plate 322 of the cutter seat 32 is inserted into the cutter seat groove 111, the first scissors arm 10 and the second scissors arm 20 are rotated, the blade 31 is pressed against the cutter platform 40, and the preliminary positioning of the cutter seat assembly 30 on the scissors part 11 is realized. Then, the sliding block 52 of the sliding lock pin 50 is aligned with the front end entrance of the insertion hole 112, passes through the insertion hole 112 and is inserted into the corresponding insertion slot 323, the push rod 324 passes through the through hole 113, and then the push plate 51 is pushed forward, so that the sliding block 52 drives the clamping hook 54 to advance and be clamped with the clamping groove 325, and the cutter seat 32 is locked, and normal hair cutting operation can be performed at this time.

[0061] When the cutter seat assembly 30 needs to be replaced, the push plate 51 is pulled backward to make the clamping hook 54 exit the clamping groove 325, and the locking state is released, and then the push rod 324 is pressed downward, and the cutter seat assembly 30 falls off from the cutter seat groove 111 to complete the quick disassembly. During the disassembly process, the fingers do not need to contact the blade 31, so that the fingers can be prevented from being cut and the safety is high.

[0062] The top surface of the push plate 51 is arc-shaped and is provided with anti-skid ribs 55 at intervals, facilitating operation.

[0063] In the prior art, the knife seat assembly and the scissors part are connected in an upper and lower push-in type clamping manner, which has safety hazards when replacing the knife seat assembly. Especially when disassembling the knife seat assembly, since the blade is very sharp, the distance between the exposed part of the knife seat assembly and the bottom surface of the scissors part is short, and a protective net can be sleeved during installation, but the protective net cannot play a role during downward disassembly, and finger cutting accidents are prone to occur.

[0064] Therefore, in the scheme of the present application, the mechanical locking or unlocking and releasing is achieved by setting a sliding lock pin 50 on the upper part of the scissors part 11 away from the blade edge, and the user does not need to touch the blade edge when disassembling the knife seat assembly 30, especially by pressing down the push rod to make the knife seat fall off, thereby completely avoiding the risk of finger cutting and improving the operation safety and efficiency of replacing the knife seat assembly.

[0065] In addition, the clamping hook 54 on the sliding lock pin 50 and the clamping groove 325 on the knife seat 32 are matched in an elastic clamping manner, which can provide a clear "in-place feeling", ensure that the knife seat assembly 30 is installed stably and accurately in position, and avoid the problem that the knife seat assembly is not inserted in place in the existing design, causing the knife seat assembly to retreat under pressure during use, affecting the hair cutting accuracy and the accuracy of hairstyle shaping.

[0066] In order to facilitate the disassembly and assembly of the knife seat 32, the periphery of the vertical plate 322 and the groove wall of the knife seat groove 111 are matched in a gap type, although the two side gaps of the knife seat groove 111 can be closed by the bottom surface of the knife seat 32, but since there is a gap between the front and rear ends of the vertical plate 322 and the knife seat groove 111, small hair fragments are easy to enter the knife seat groove 111 along the gap, and long-term accumulation can cause the knife seat assembly 30 to loosen, affecting the hair cutting accuracy.

[0067] To solve this problem, in the scheme of the present application, the front and rear ends of the base 321 extend outward relative to the two end sides of the vertical plate 322, forming a sealing plate 326. The sealing plate 326 is pressed against the bottom surface of the scissors part 11, sealing the front and rear end gaps of the knife seat groove 111, blocking the entry of hair fragments into the inside of the knife seat groove 111, and avoiding the problem that the accumulation of foreign matter causes the knife seat assembly 30 to loosen and affects the hair cutting accuracy.

[0068] In order to improve the replacement safety and prevent the fingers of the operator from being cut by the sharp blade, the present application is also provided with an expansion sleeve matched with the shape of the blade part of the blade 31, and preferably a metal mesh protective cover (such as a steel mesh expansion sleeve) is sleeved on the blade edge of the blade 31. During the installation and / or disassembly of the knife seat assembly 30, the blade edge is always wrapped inside the expansion sleeve and completely hidden, thereby improving the operation safety.

[0069] As Figure 11 ,Figure 12 , Figure 13 As shown, the top surface of the blade holder 21 is provided with a blade holder groove 211, and the blade holder 40 is detachably installed in the blade holder groove 211. Specifically, the blade holder 40 includes a table surface 41 and a mounting plate 42 disposed on the bottom surface of the table surface 41. The shape of the mounting plate 42 is adapted to the blade holder groove 211, and after being inserted into the blade holder groove 211, it is fastened and fixed by screws 43, which facilitates later maintenance or replacement of blade holders 40 of different specifications to meet the needs of different hair styling. Figure 14 , Figure 15 The blade plate shown has multiple parallel strip grooves 44 along the length of the work surface 41. The strip grooves 44 are arranged through the width of the work surface 41 to achieve thinning operation during hair styling. The width and number of strip grooves 44 can be designed into various forms according to different hair styling needs to meet different requirements.

[0070] The cross-section of the tabletop 41 is an isosceles trapezoid with a flat top surface and two sides that slope downwards. This design allows the cut hair strands to slide smoothly down the slope, avoiding accumulation and obstructing the view, and ensuring that the hairdresser can clearly observe the cutting area.

[0071] The two sides of the table 41 and the mounting plate 42 are connected by ramps 45. The ramps 45 fit tightly against the inner wall of the tool holder groove 211, reducing the clearance and preventing hair fragments from entering the tool holder groove 211. This prevents the tool holder 40 from loosening or shifting due to the accumulation of foreign objects, thus improving the overall reliability of the structure. The front and rear ends of the table 41 are also equipped with sealing plates, which have the same function as the sealing plate 326 on the tool holder 32, and will not be described in detail here.

[0072] In this application, the blade holder 40 is integrally molded from a resin material. The resin material is relatively hard, but also has a certain degree of toughness. It can only undergo slight deformation when subjected to sharp objects such as blades. Therefore, it can both protect the blade and quickly cut hair. It is low in cost and reduces the overall weight of the cutter, making it convenient to use.

[0073] Please see again Figure 4 , Figure 11 The first hinge portion 12 is provided with a first connecting hole, and the second hinge portion 22 is provided with a second connecting hole. The two are rotatably connected by a rotating shaft component 60. The rotating shaft component 60 includes a fastening bolt 61 and an adjusting nut 62. After the fastening bolt 61 passes through the first connecting hole and the second connecting hole in sequence, it is tightened and fixed by the adjusting nut 62.

[0074] By rotating the adjusting nut 62, the preload between the first cutting arm 10 and the second cutting arm 20 can be adjusted, thereby controlling the flexibility of their rotation around the hinge axis of the fastening bolt 61, meeting the personalized needs of different users for the tightness of the hand, and improving operating comfort and haircutting accuracy.

[0075] Preferably, the first connecting hole outer end is provided with a counterbore, the head of the fastening bolt 61 is embedded in the counterbore, the outer surface is flat without protrusions, and the hair is prevented from being entangled or clamped in the gap during the haircut.

[0076] Further, the first connecting hole is a circular through hole, the second connecting hole is a double flat hole or a D-shaped hole, the rod of the fastening bolt 61 cooperates with the D-shaped hole or the double flat hole to achieve circumferential limiting. Therefore, during the rotation of the adjusting nut 62, the fastening bolt 61 will not rotate, which facilitates quick adjustment and can achieve accurate control of the tightness. This structure can also effectively prevent the nut from being loosened in reverse during long-term use, maintaining the stable cooperation between the shear arms.

[0077] A gasket 63 is arranged between the adjusting nut 62 and the second shear arm 20 to disperse pressure, reduce wear, and enhance the anti-loosening performance.

[0078] The scheme ensures safety, stability, and does not damage the hair quality, and realizes guided cutting. Compared with the traditional double-blade scissors, the scheme can avoid the rebound and turbulence of hair at the moment of breaking, maintain the integrity and natural direction of the hair tail. With slight force to pull the hair and press down the blade assembly, the gum material knife table can produce slight deformation, so that the hair is broken, the pulling force of the hair can be controlled during the breaking period, the hair produces different angle fracture, inclined single oblique surface, and controls the hair to produce guided different angle trend three-dimensional effect. When operating, the knife seat assembly and the knife table are folded to clamp the hair, there is no need to pull the hair bundle with force by hand, long and short hair can be cut off, which is not only convenient to operate, but also saves labor, and different length of hair can be trimmed.

[0079] The single-blade structure redefines the cutting mechanism, completely discards the defects such as hair bulge and rough fracture caused by extrusion in the traditional double-blade cutting, effectively avoids the irregular breaking phenomenon caused by double-blade clamping. The cutting surface is smoother and more regular, and under the condition of not applying additional tension or pulling, the hair natural and orderly landing and level transition are realized, the delicate and soft outline gradient effect is presented, and the coherence and visual beauty of the hairstyle line are significantly improved.

[0080] The non-extrusion cutting method is adopted, the rolling and friction on the hair shaft are avoided, the scale structure is completely protected, the physical damage rate is significantly reduced, the hair quality can maintain healthy luster even after long-term use, and the original appearance of the hair is protected.

[0081] Overall optimize the safety, stability and controllability of the cutting process, significantly reduce the technical threshold, enable the hairdresser to achieve precise cutting and complex creative modeling in a lower risk and higher efficiency way. Not only improve the professionalism and comfort of operation, but also open up new technical paths and development possibilities for modern hair design, and promote the hairdressing process from experience-driven to fine, personalized and technological new stage. Get rid of the dependence on high-risk methods, the operation safety has achieved a qualitative leap - customers only feel the mild stimulation brought by slight tension in the use process, as if experiencing a gentle scalp massage, bringing a unique experience of physical and mental relaxation, significantly improving the emotional added value and perceived quality in the service process.

[0082] Without deliberately pulling the hair tail, precise cutting can be completed, breaking through the technical limitations of traditional cutting knives only suitable for long hair operation, widely compatible with short hair, medium hair and different texture hair, perfectly solving the operation problem in short hair processing, greatly expanding the application range and technical adaptability, and providing solid support for diversified hair design.

[0083] In summary, the single-blade hair cutting tool provided by the present application has the following advantages compared with the prior art:

[0084] First, by setting a sliding locking pin on the upper part of the scissors part away from the blade to lock and unlock, there is no need to directly touch the blade area with hands when disassembling the cutter holder assembly, avoiding the risk of finger cutting, and significantly improving the safety and operation efficiency of replacing the cutter holder assembly.

[0085] Second, a push rod is arranged on the cutter holder, and the cutter holder can be detached by pressing the push rod, which is fast and safe.

[0086] Third, the cross section of the table is isosceles trapezoidal, the top surface is flat, and the two side edges are inclined downward, so that the cut hair can slide down smoothly without affecting the hairdresser's vision.

[0087] Fourth, the two side surfaces of the table and the mounting plate are connected through a slope, and the slope is closely matched with the inner side of the cutter table groove, reducing the gap and effectively preventing the hair from entering the cutter table groove and causing the cutter table to loosen, improving the reliability and stability of use.

[0088] Fifth, the cutter table is detachably installed, and different forms of cutter tables can be replaced according to different hairdressing needs to meet different hairdressing application scenarios.

[0089] Finally, it should be noted that the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0090] The present application is not limited to the above-described best mode, and any person should know that structural changes made under the inspiration of the present application, any technical solutions with the same or similar to the present application, fall within the protection scope of the present application.

Claims

1. A single-blade hair clipper, comprising a first scissor arm and a second scissor arm hinged together, the first scissor arm comprising, in sequence, a scissor section, a first hinge section, and a first handle section; the second scissor arm comprising, in sequence, a blade holder section, a second hinge section, and a second handle section, wherein the scissor section is provided with a detachably connected blade holder assembly, and the blade holder section is provided with a detachably connected blade holder, characterized in that, It also includes a sliding locking pin, The blade holder assembly includes a blade and a blade holder. The blade is integrally formed on the blade holder, and the cutting edge of the blade protrudes from the bottom surface of the blade holder and is positioned towards the blade table. The blade holder includes a base, the width of which is less than the overall width of the scissor section. The top surface of the base is provided with a vertical plate, and the top of the vertical plate is provided with at least two slots. The lower end of the front wall of the slots extends forward to form a groove. The bottom surface of the scissor section is provided with a knife holder groove that matches the shape of the upright plate, and the top surface of the scissor section is provided with a insertion hole that corresponds to the slot, and the insertion hole communicates with the knife holder groove; The sliding locking pin includes a push plate and a slider, which are connected by a connecting block to form an integral structure. The slider has a hook at its front end, the shape of which is adapted to the slot. The upright plate is inserted into the tool holder slot, and the sliding locking pins pass through the insertion holes and are inserted into the corresponding slots. The sliding locking pin is configured to: push the push plate to move the slider along the insertion hole, thereby engaging or disengaging the hook from the slot, and locking or unlocking the tool holder.

2. The single-blade hairdressing tool according to claim 1, characterized in that, A push rod is provided between the two slots on the upright plate, and a through hole corresponding to the push rod is provided on the top surface of the scissor part, through which the push rod passes.

3. The single-blade hairdressing tool according to claim 1, characterized in that, The tool holder includes a table surface and a mounting plate disposed on the bottom surface of the table surface. A tool holder groove is provided on the top surface of the tool holder. The shape of the mounting plate is adapted to the tool holder groove, and it is inserted into the tool holder groove and fixed by screws.

4. The single-blade hairdressing tool according to claim 3, characterized in that, The cross-section of the platform is an isosceles trapezoid with a flat top surface and two sides that extend downwards. The platform and the two sides of the mounting plate are connected by a ramp transition.

5. The single-blade hairdressing tool according to claim 1, characterized in that, The first hinge portion is provided with a first connecting hole, and the second hinge portion is provided with a second connecting hole. The two are rotatably connected by a rotating shaft component. The rotating shaft component includes a fastening bolt and an adjusting nut. The fastening bolt passes through the first connecting hole and the second connecting hole in sequence and is then tightened and fixed by the adjusting nut. The outer end of the first connecting hole is provided with a countersunk hole, and the head of the fastening bolt is embedded in the countersunk hole. The first connecting hole is a circular through hole, and the second connecting hole is a double-flat-edge hole or a D-shaped hole. The shank of the fastening bolt mates with the D-shaped hole or the double-flat-edge hole.

6. The single-blade hairdressing tool according to claim 1, characterized in that, The first grip portion is provided with a first finger ring, and the second grip portion is provided with a second finger ring. The first finger ring and the second finger ring are respectively adapted to the hairdresser's thumb and index finger.

7. The single-blade hairdressing tool according to claim 1, characterized in that, The width of the base is less than the overall width of the scissor section, and the front and rear ends of the base extend outward relative to the two ends of the upright plate to form a sealing plate.

8. The single-blade hairdressing tool according to claim 1, characterized in that, The width of the connecting block is smaller than the width of the push plate and the slider. The width of the rear section of the socket matches the width of the connecting block, and the width of the front section matches the width of the slider. The connecting block can slide freely along the length direction of the socket.

9. The single-blade hairdressing tool according to claim 3, characterized in that, The tool holder has multiple parallel slots along the length of the table surface, and the slots extend through the table surface along its width.

10. The single-blade hairdressing tool according to claim 1, characterized in that, The top surface of the push plate is arc-shaped and has anti-slip protrusions spaced apart.

Citation Information

Patent Citations

  • Hair clipper

    CN208812149U