An intelligent hair clipper capable of automatically trimming hair length

By combining a limiting comb, a reduction motor, and a lever mechanism, the electric hair clipper achieves automatic adjustment of cutting length and precision, solving the problem of uneven cutting in existing technologies and improving cutting efficiency and results.

CN224407673UActive Publication Date: 2026-06-26XIYU LONGHUI (BEIJING) TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIYU LONGHUI (BEIJING) TECHNOLOGY CO LTD
Filing Date
2025-07-01
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing electric hair clippers require hairdressers to manually operate the comb and blades during the haircutting process, which demands a high level of skill and results in uneven haircuts, making it difficult to achieve a smooth and neat hair surface.

Method used

By employing a combination of a limiting comb, a reduction motor, a gear rack and pinion mechanism, and a lever mechanism, the haircutting length and precision are automatically adjusted, and the hair is dried by a blower, reducing the hassle of changing tools.

Benefits of technology

It improves the precision and efficiency of haircutting, reduces the technical threshold, ensures a smooth hair surface and eliminates the need for frequent tool changes, thus enhancing the haircutting experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to hairdressing equipment technical field, the utility model discloses an automatic trimming hair length's intelligent hairdressing device, including the lower shell and upper shell of mutual splicing setting, the surface fixed setting of lower shell has the mounting piece, the surface fixed connection of upper shell has control panel, the front side sliding connection of lower shell has the limit comb, the middle part fixed connection of lower shell and upper shell has the mounting bracket, the side vertical sliding connection of mounting bracket has the reduction motor, the output of reduction motor rotatory connection has the gear, the top engagement of gear has the rack, one end fixed connection of rack has the link element, the side of link element relative to rack and limit comb movable joint, through limit comb, when hairdressing, need not handheld comb, and can through the distance that limit comb projects, control the length of cutting hair, through control top bracket and tension spring, limit comb under the quick return of tension spring, to promote the trimming accuracy, improves the trimming efficiency simultaneously.
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Description

Technical Field

[0001] This utility model relates to the field of hairdressing equipment technology, specifically to an intelligent hair clipper that automatically trims the length of hair. Background Technology

[0002] An electric hair clipper is a hair styling tool that uses electricity to drive the blades to cut hair. It is widely used in homes, hair salons, and professional hairdressing settings.

[0003] In existing techniques, during a haircut, the hairdresser needs to hold a comb in one hand and use it to comb the hair up and place it against the front and lower part of the clipper head held in the other hand. The operation requires combing and cutting one hair at a time, alternating up and down and left and right, and pressing and overlapping. The key is to leave room for the height of the haircut when the comb is close to the scalp. This requires the angle of the comb surface on different dimensions of the scalp to be consistent and naturally connected in order to cut a round and neat hair surface. This requires a high level of hairdressing skill. Unskilled people cannot stably control the comb surface, which will result in an uneven hair surface and uneven hair joints after the haircut. Utility Model Content

[0004] The purpose of this utility model is to provide an intelligent hair clipper that automatically trims hair length, thereby solving the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: it includes a lower shell and an upper shell that are assembled together, a mounting component is fixedly disposed on the surface of the lower shell, a control panel is fixedly connected to the surface of the upper shell, and a limit comb is slidably connected to the front side of the lower shell;

[0005] The lower housing and the upper housing are fixedly connected to a mounting bracket. A reduction motor is vertically slidably connected to one side of the mounting bracket. A gear is rotatably connected to the output end of the reduction motor. A rack is meshed at the top of the gear. A connecting piece is fixedly connected to one end of the rack. The side of the connecting piece relative to the rack is movably engaged with the limiting comb.

[0006] The top of the connector is fitted with one end of a tension spring, and the end of the tension spring away from the connector is fitted on the inner wall of the lower housing.

[0007] A pressing plate is provided on the front side of the mounting component, and a top bracket is fixedly connected to the bottom of the pressing plate. A groove is provided at the bottom of the top bracket, and the groove of the top bracket cooperates with the coupling of the gear and the reduction motor. A spring is provided at the bottom of the reduction motor and is located inside the upper housing.

[0008] Preferably, a cutter head motor is fixedly connected to the other side of the mounting bracket, and a movable cutter head is drivenly connected to the eccentric shaft of the cutter head motor. A fixed cutter head is provided on the top surface of the movable cutter head, and the fixed cutter head is fixedly connected to the front side of the lower housing.

[0009] Preferably, the lower surface of the movable cutter head is fixedly connected to a spring-driven section, and the spring has a stop section in the middle, which abuts against the inner wall of the lower housing.

[0010] Preferably, the compression spring is fixedly connected to a central shaft, and the two ends of the central shaft are symmetrically and movably connected to pry bars, with the end of the pry bar near the central shaft abutting against the inner wall of the lower housing.

[0011] Preferably, the inner surface of the mounting component has a slot, and a push base is provided below the mounting component.

[0012] Preferably, extension rods are fixedly inserted into both sides of the push base, and the extension rods are slidably disposed on the side wall of the mounting frame. The end of the extension rod away from the push base abuts against the surface of the pry bar away from the lower housing. A contact plate is fixedly connected to the top of the push base, and the contact plate is slidably disposed on the mounting component. The pry bar rotates with the connection point between one end and the lower housing as the fulcrum.

[0013] Preferably, springs are symmetrically installed on both sides of the inside of the push base, and a pressure handle is provided through and vertically sliding on one side of the contact plate. A pressure shaft is fixedly connected to the bottom of the pressure handle, and the pressure shaft is engaged with the mounting part by a slot.

[0014] Preferably, a battery, a fan, and a ventilation backplate are fixedly installed inside the upper housing.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. In this utility model, the limiting comb eliminates the need to hold a comb in one hand and a clipper in the other during haircuts. The clipper automatically adjusts the extension distance of the limiting comb to control the length of the cut, improving trimming precision and reducing the technical barrier. Furthermore, when making the second cut after the first cut, the top support and tension spring are controlled, and pressing the pressing plate disengages the gear rack. The limiting comb quickly returns to its original position under the action of the tension spring, allowing the second cut to continue, thus improving trimming efficiency. The forward and reverse rotation speeds of the reduction motor can also be set and the start and stop controls can be adjusted to allow the limiting comb to return to its original position or move forward and stop at the desired hair height for automatic cyclic haircutting, making it more intelligent.

[0017] 2. In this utility model, the lever mechanism pushes and pulls the spring to move the movable cutter head forward and shorten the distance between it and the fixed cutter head, thereby achieving fine adjustment of the short haircut. When the touch plate pushes the push seat to the front of the mounting part, the pressure shaft is engaged in the slot, and the second spring presses the pressure shaft to lock the position of the movable cutter head, ensuring the stability of the setting and accuracy of the trimming height.

[0018] 3. In this utility model, the airflow circulation formed by the air inlet and outlet through the operation of the fan can conveniently dry the hair and blow away the loose hair, reducing the need for manual hair cleaning and eliminating the need for the traditional method of frequently changing tools to dry the hair after putting down the hair clipper and picking up the hair dryer. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a bottom view of the structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the rack, connector, tension spring, and limiting comb of this utility model;

[0023] Figure 5 This is a schematic diagram of the card slot structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the movable cutter head, fixed cutter head, and compression spring of this utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the push base, contact plate and pressure handle of this utility model;

[0026] Figure 8 This is a side sectional view of the upper and lower shells of this utility model.

[0027] In the diagram: 1. Lower housing; 2. Upper housing; 3. Mounting component; 301. Slot; 4. Control panel; 5. Limit comb; 6. Mounting bracket; 7. Gear motor; 8. Gear; 9. Rack; 10. Connecting component; 11. Tension spring; 12. Pressing plate; 13. Top bracket; 14. Spring 1; 15. Blade motor; 16. Movable blade; 17. Fixed blade; 18. Compression spring; 181. Propulsion section; 182. Abutment section; 19. Central shaft; 20. Pry bar; 21. Push base; 22. Extension rod; 23. Contact plate; 24. Spring 2; 25. Pressure handle; 26. Pressure shaft; 27. Battery; 28. Fan; 29. ​​Ventilation back panel. Detailed Implementation

[0028] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0029] Example 1: Please refer to Figure 1 and Figure 2The present invention provides a technical solution: including a lower shell 1 and an upper shell 2 that are assembled together; a mounting part 3 is fixedly provided on the surface of the lower shell 1; a control panel 4 is fixedly connected to the surface of the upper shell 2; and a limit comb 5 is slidably connected to the front side of the lower shell 1.

[0030] like Figure 2 As shown, the limiting comb 5 is slidably installed on the front side of the lower housing 1. During the haircutting process, the limiting comb 5 is inserted and installed on the post of the front end connector 10 of the rack 9. The distance of the limiting comb 5 extending can be adjusted through the control panel 4, so as to conveniently control the effective length of the hair surface from the scalp after the hair is cut off.

[0031] A mounting bracket 6 is fixedly connected inside the lower housing 1 and the upper housing 2. A reduction motor 7 is vertically slidably connected to one side of the mounting bracket 6. A gear 8 is rotatably connected to the output end of the reduction motor 7. A rack 9 is meshed on the top of the gear 8. A connecting piece 10 is fixedly connected to one end of the rack 9. The side of the connecting piece 10 relative to the rack 9 is movably engaged with the limiting comb 5.

[0032] like Figure 3 As shown, during a haircut, the barber uses the control panel 4 to drive the gear 8 to rotate via the reduction motor 7. The gear 8 meshes with the rack 9, converting the rotational motion into linear motion. The connector 10 at one end of the rack 9 pushes the limiting comb 5 to slide forward along the groove on the front side of the lower housing 1, thus increasing the distance between the surface of the limiting comb 5 and the surface of the fixed blade 17. Since the surface of the limiting comb 5 is in contact with the scalp, the blade motor 15 starts to cut the hair, completing the automatic adjustment of the hair length after the haircut.

[0033] One end of a tension spring 11 is sleeved on the top of the connector 10, and the end of the tension spring 11 away from the connector 10 is sleeved on the inner wall of the lower housing 1.

[0034] A pressing plate 12 is provided on the front side of the mounting part 3. A top bracket 13 is fixedly connected to the bottom of the pressing plate 12. A groove is provided at the bottom of the top bracket 13. The groove of the top bracket 13 is engaged with the shaft of the gear 8 and the reduction motor 7. A spring 14 is provided inside the upper housing 2 at the bottom of the reduction motor 7.

[0035] like Figure 6As shown, the groove at the bottom of the top support 13 is used to readjust the extension length of the limiting comb 5 when performing the second cut after the first cut. The limiting comb 5 needs to be quickly returned to its original position to improve the efficiency of haircutting. At this time, the barber presses the pressing plate 12, which causes the top support 13, which is fixedly connected to the bottom, to press the axial direction of the connection between the gear 8 and the reduction motor 7 downward. The spring 14 is compressed, and the gear 8 and the rack 9 are disengaged. The extended limiting comb 5 can be quickly pulled back under the tension of the tension spring 11 to improve the efficiency of operation. The forward and reverse rotation speeds of the reduction motor and the start and stop control can also be set to make the limiting comb return to its original position or move forward and stop at the required hair height for cyclic haircutting.

[0036] Example 2: Please refer to Figure 5 and Figure 7 The present invention provides a technical solution: a cutter motor 15 is fixedly connected to the other side of the mounting bracket 6, a movable cutter head 16 is driven by the shaft of the eccentric shaft of the cutter motor 15, a fixed cutter head 17 is provided on the top surface of the movable cutter head 16, and the fixed cutter head 17 is fixedly connected to the front side of the lower housing 2.

[0037] like Figure 6 As shown, the output end of the blade motor 15 is rotatably connected to an eccentric shaft, which is connected to the movable blade 16 in a transmission manner. During the rotation of the eccentric shaft, the movable blade 16 moves back and forth laterally on the fixed blade 17, and cooperates with the fixed blade 17 to cut the hair.

[0038] The lower surface of the movable cutter head 16 is fixedly connected to the pushing section 181 of the compression spring 18, and the middle part of the compression spring 18 is provided with the abutting section 182, which abuts against the inner wall of the lower housing 1.

[0039] The compression spring 18 is fixedly connected to the central shaft 19. The two ends of the central shaft 19 are symmetrically and movably connected to the pry bar 20. The end of the pry bar 20 near the central shaft 19 abuts against the inner wall of the lower housing 1.

[0040] The inner surface of the mounting part 3 is provided with a slot 301, and a push seat 21 is provided below the mounting part 3;

[0041] Extension rods 22 are fixedly inserted into both sides of the push base 21. The extension rods 22 are slidably mounted on the side wall of the mounting bracket 6. The end of the extension rod 22 away from the push base 21 abuts against the surface of the pry bar 20 away from the lower housing 1. A contact plate 23 is fixedly connected to the top of the push base 21. The contact plate 23 is slidably mounted on the mounting part 3. The pry bar 20 rotates with the connection point between one end and the lower housing 1 as the fulcrum.

[0042] like Figure 6As shown, during hair cutting, by pushing the contact plate 23 forward, the contact plate 23 slides on the surface of the mounting part 3. Its bottom drives the push seat 21 and the extension rod 22 to move forward synchronously. When the extension rod 22 pushes the pry bar 20, the central shaft 19 and the pry bar 20 form a lever mechanism. The pry bar 20 rotates with the connection of the lower housing 1 as the fulcrum, so that the compression spring 18 is compressed. The pushing section 181 of the compression spring 18 moves forward, causing the movable blade to slide forward. The distance between the movable blade and the fixed blade is shortened, so that the length of the hair being cut is shortened. By adjusting the distance between the tooth head of the movable blade 16 and the tooth head of the fixed blade 17, the length of the hair being cut can be further adjusted to ensure the free setting of the cutting height and the stability of the accuracy.

[0043] Springs 24 are symmetrically installed on both sides of the inside of the push base 21. A pressure handle 25 is provided through and vertically sliding on one side of the contact plate 23. A pressure shaft 26 is fixedly connected to the bottom of the pressure handle 25. The pressure shaft 26 is engaged with the mounting part 3 by the slot 301.

[0044] like Figure 7 As shown, when it is necessary to restrict the position of the movable cutter head 16, the contact plate 23 pushes the push base 21 to the front side of the mounting part 3, and the spring 24 automatically springs up, pressing the pressure shaft 26 upward. At this time, the pressure shaft 26 is locked into the slot 301 of the mounting part 3; and one side of the pressure handle 25 protrudes from the top of the contact plate 23, and the restriction can be released by pressing with a finger, thereby limiting the movable cutter head 16.

[0045] The upper housing 2 has a battery 27, a fan 28 and a ventilation backplate 29 fixedly installed inside.

[0046] like Figure 3 and Figure 2 As shown, when in use, the battery 27 powers the whole machine. After the fan 28 is started, airflow is introduced into the machine body through the through hole on the surface of the lower housing 1, and output to the outside through the ventilation back plate 29 inside the machine body. This makes it convenient for the barber to quickly and easily blow away the cut hair during or after the haircut, making it easier to cut hair more cleanly and quickly during the haircut, and eliminating the hassle of picking up a hair dryer to dry the hair after the haircut.

[0047] The working process of this utility model is as follows:

[0048] The control panel 4 starts the geared motor 7, which drives the gear 8 to rotate and mesh with the rack 9, converting the rotational motion into linear motion. This causes the connecting piece 10 to push the limiting comb 5 to slide along the groove to achieve length adjustment. When the pressing plate 12 is pressed, the top bracket 13 presses down the shaft of the gear 8 and the fixed geared motor 7. The spring 14 is compressed, causing the gear 8 and rack 9 to disengage. The limiting comb 5 quickly returns to its original position under the tension of the tension spring 11, realizing convenient switching and reset of the effective trimming length. The forward and reverse rotation speeds of the geared motor and the start and stop controls can also be set to make the limiting comb return to its original position or move forward and stop at the required hair height for cyclic hair cutting.

[0049] Pushing the contact plate 23 forward moves the push base 21 and the extension rod 22. The extension rod 22 pushes the pry bar 20 to rotate around the fulcrum. Through the lever mechanism, the spring 18 is compressed, causing the movable cutter head 16 to move forward and shorten the distance with the fixed cutter head 17, thus achieving fine adjustment of the trimming length. When the contact plate 23 pushes the push base 21 to the front of the mounting part 3, the pressure shaft 26 is engaged in the slot 301, and the spring 24 presses against the pressure shaft 26, locking the position of the movable cutter head 16 and ensuring the free setting and accuracy stability of the effective trimming length.

[0050] Battery 27 powers the starter fan 28. Airflow is introduced into the machine body through the through hole in the lower housing 1, passes through the ventilation back plate 29 and is discharged outward, forming an airflow circulation. This airflow can blow away the hair clippings generated during the trimming process, preventing hair clippings from remaining on the head, thus functioning as a hair dryer. At the same time, it dissipates heat from the motor and other components, ensuring the continuous operation of the equipment.

[0051] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0052] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0053] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A smart hair clipper that automatically trims hair length, characterized in that, It includes a lower shell (1) and an upper shell (2) that are assembled together. The surface of the lower shell (1) is fixedly provided with a mounting part (3), and the surface of the upper shell (2) is fixedly connected with a control panel (4). The front side of the lower shell (1) is slidably connected with a limit comb (5). The lower housing (1) and the upper housing (2) are fixedly connected to a mounting bracket (6). A reduction motor (7) is vertically slidably connected to one side of the mounting bracket (6). A gear (8) is rotatably connected to the output end of the reduction motor (7). A rack (9) meshes with the top of the gear (8). A connector (10) is fixedly connected to one end of the rack (9). The side of the connector (10) relative to the rack (9) is movably engaged with the limiting comb (5). The top of the connector (10) is fitted with one end of a tension spring (11), and the end of the tension spring (11) away from the connector (10) is fitted on the inner wall of the lower housing (1); The front side of the mounting piece (3) is provided with a pressing piece (12), and the bottom of the pressing piece (12) is fixedly connected with a top bracket (13). The bottom of the top bracket (13) is provided with a groove, and the groove of the top bracket (13) is engaged with the shaft of the gear (8) and the reduction motor (7). The bottom of the reduction motor (7) is abutted against a spring (14) provided inside the upper housing (2).

2. The intelligent hair clipper that automatically trims hair length according to claim 1, characterized in that: The mounting bracket (6) is fixedly connected to the inner side of the blade motor (15), and the eccentric shaft of the blade motor (15) is connected to the movable blade (16). The top surface of the movable blade (16) is provided with a fixed blade (17), and the fixed blade (17) is fixedly connected to the front side of the lower housing (1).

3. The intelligent hair clipper that automatically trims hair length according to claim 2, characterized in that: The lower surface of the movable cutter head (16) is fixedly connected to the advancing section (181) of the compression spring (18), and the middle part of the compression spring (18) is provided with an abutting section (182), which abuts against the inner wall of the lower housing (1).

4. The intelligent hair clipper that automatically trims hair length according to claim 3, characterized in that: The compression spring (18) is fixedly connected to a central shaft (19), and the two ends of the central shaft (19) are symmetrically and movably connected to pry bars (20). The end of the pry bar (20) near the central shaft (19) abuts against the inner wall of the lower housing (1).

5. The intelligent hair clipper that automatically trims hair length according to claim 1, characterized in that: The inner surface of the mounting component (3) is provided with a slot (301), and the inner surface of the mounting component (3) is provided with a push seat (21).

6. The intelligent hair clipper that automatically trims hair length according to claim 5, characterized in that: An extension rod (22) is movably inserted into both sides of the hole in the push base (21). The extension rod (22) is slidably disposed on the side wall of the mounting bracket (6). The end of the extension rod (22) away from the push base (21) abuts against the surface of the pry bar (20) away from the lower housing (1). A contact plate (23) is fixedly connected to the top of the push base (21). The contact plate (23) is slidably disposed on the outside of the mounting component (3). The pry bar (20) rotates and abuts against the lower housing (1) with one end of its connection point as the fulcrum.

7. The intelligent hair clipper that automatically trims hair length according to claim 6, characterized in that: Springs 2 (24) are symmetrically installed on both sides of the inside of the push base (21). A pressure handle (25) is provided through and vertically sliding on one side of the contact plate (23). A pressure shaft (26) is fixedly connected to the bottom of the pressure handle (25). The pressure shaft (26) is engaged with the mounting part (3) by a slot (301) through which it moves back and forth.

8. The intelligent hair clipper that automatically trims hair length according to claim 1, characterized in that: The upper housing (2) is equipped with a battery (27), a fan (28), and a ventilation backplate (29).