Tool bit structure facilitating hair discharge and hair trimmer

By introducing rolling connected rollers and cleaning parts into the cutting head structure of the hair trimmer, the problem of hair accumulation in the blade gap is solved, and the self-cleaning ability and user experience of the trimmer is improved.

CN222792131UActive Publication Date: 2025-04-25NINGBO KAILI HLDG GRP
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Patent Information

Application Number
CN202420197331.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-01-26
Publication Date
2025-04-25
Estimated Expiration
2034-01-26

AI Technical Summary

Technical Problem

The stubble produced by existing hair trimmers during shaving is easily accumulated in the gaps between the blades, affecting the shaving efficiency, increasing the cleaning frequency, and having a poor experience.

Method used

A cutting head structure for hair discharge is designed, including a knife holder and a blade mounted on the knife holder. The knife holder is rolled with a roller, and the outer wall of the roller is provided with a cleaning part for driving the hair cut by the blade to move and discharge.

Benefits of technology

Through the rolling and cleaning part of the roller, it can effectively reduce the attachment of hair on the blade and the skin surface, reduce the accumulation of hair in the gap, and improve the self-cleaning ability of the hair trimmer.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a tool bit structure convenient for hair discharge and a hair trimmer, the tool bit structure comprises a tool rest and at least one blade installed on the tool rest, the tool rest is connected with a roller in a rolling manner, and the outer wall of the roller is provided with a cleaning part for driving the hair cut by the blade to move and discharge. According to the hair trimmer, the idler wheel is installed on the knife rest, the idler wheel can roll in the hair trimming process so that hair can be discharged along with shaving foam through the cleaning part, attachment of the hair to the blade and the skin surface is greatly reduced, accumulation of the hair in gaps can be reduced, and the self-cleaning capacity of the hair trimmer is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of hair trimmers, in particular to a cutter head structure and a hair trimmer that are convenient for hair discharge. Background Art

[0002] With existing hair trimmers, such as razors, the stubble produced during shaving is easily accumulated in the gaps between the blades. The stubble not only affects the shaving efficiency, but also increases the frequency of cleaning the razor, resulting in a poor shaving experience. Utility Model Content

[0003] In order to solve at least one aspect of the above problems, the utility model first provides a cutter head structure that is convenient for hair discharge, including a cutter holder and at least one blade installed on the cutter holder, the cutter holder is rotatably connected to a roller, the outer wall of the roller is provided with a cleaning part for driving the hair cut by the blade to move and discharge, and the cleaning part is a convex point or a convex strip or a scraper.

[0004] Optionally, the cleaning portion is a plurality of convex strips, and the plurality of convex strips are arranged at intervals on the circumferential outer wall of the roller.

[0005] Optionally, the blade is provided with a cutting edge for cutting hair, and the roller is arranged close to the cutting edge.

[0006] Optionally, the roller is unidirectionally rotatable relative to the tool holder.

[0007] Optionally, a hollow portion for hair discharge is provided on a side of the blade holder away from the blade.

[0008] Optionally, the left and right ends of the roller are respectively provided with pin shafts, and the left and right sides of the tool holder are respectively provided with shaft holes that cooperate with the pin shafts.

[0009] Optionally, a rubber strip is connected to the front side of the tool holder, and a lubricating strip is connected to the rear side; the tool holder is provided with a spring sheet for holding the blade upward, and both ends of each blade are held up by one of the spring sheets respectively.

[0010] Optionally, there are two rollers, the two rollers are arranged at an interval, and the blade is provided at the rear of each roller.

[0011] Optionally, two blades are arranged behind each roller.

[0012] Compared with the prior art, the utility model has a cutter head structure that facilitates hair discharge. A roller is installed on the cutter holder. During the hair trimming process, the roller can roll so that the hair can be discharged along with the shaving foam by using the cleaning part, which greatly reduces the adhesion of hair on the blade and the skin surface, and can also reduce the accumulation of hair in the gap, thereby improving the self-cleaning ability of the hair trimmer.

[0013] In addition, the utility model provides a hair trimmer, comprising the above-mentioned cutter head structure for facilitating hair discharge.

[0014] Compared with the prior art, the hair trimmer of the present invention and the above-mentioned cutter head structure for facilitating hair removal have the same advantages over the prior art, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The structure of the cutter head structure for facilitating hair removal according to the embodiment of the utility model Figure 1 ;

[0016] Figure 2 The structure of the cutter head structure for facilitating hair removal according to the embodiment of the utility model Figure 2 ;

[0017] Figure 3 A cross-sectional view of a cutter head structure for facilitating hair removal according to an embodiment of the utility model;

[0018] Figure 4 This is a cross-sectional schematic diagram of the cutter head structure for facilitating hair discharge according to an embodiment of the utility model when cutting hair, and the arrow marked on the roller indicates the rotation direction;

[0019] Figure 5 An exploded view of a cutter head structure for facilitating hair removal according to an embodiment of the utility model;

[0020] Figure 6 This is a partial structural diagram of a cutter head structure for facilitating hair discharge according to an embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 1. Knife holder; 11. Hollow part; 12. Axis hole; 13. Shrapnel; 2. Blade; 21. Blade; 3. Roller; 31. Raised strip; 32. Pin; 4. Rubber strip; 5. Lubricating strip; 6. Hair. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0024] In the description of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate positions or location relationships that are based on the positions or location relationships when the product is in normal use.

[0025] The terms "first" and "second" are used only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. The drawings of the embodiments of the present utility model are provided with a coordinate system XYZ, wherein the positive direction of the X-axis represents the left, the reverse direction of the X-axis represents the right, the positive direction of the Y-axis represents the front, the reverse direction of the Y-axis represents the back, the positive direction of the Z-axis represents the top, and the reverse direction of the Z-axis represents the bottom.

[0026] The utility model provides a cutter head structure that is convenient for hair removal. Figures 1 to 4 As shown, it includes a blade holder 1 and at least one blade 2 installed on the blade holder 1. The blade holder 1 is rollingly connected to a roller 3, and the outer wall of the roller 3 is provided with a cleaning portion for driving the hair 6 cut by the blade 2 to move and discharge.

[0027] Among them, the knife holder 1 is the support frame of the whole structure, which is used to fix and support the blade 2 and other related components; the roller 3 can rotate freely relative to the knife holder 1, and the roller 3 and the blade 2 are arranged close to each other, so as to facilitate the timely removal of the cut hair 6 when rolling; generally, the hair 6 must be lubricated with shaving foam before trimming the hair 6. When trimming the hair 6, the knife holder 1 and the blade 2 move relative to the skin, and the roller 3 rolls and rubs against the skin and rotates in the opposite direction of the movement of the knife holder 1 to discharge the hair 6 attached to the skin and the blade 2 along with the shaving foam; the hair 6 movement discharge means that the hair 6 follows the shaving foam to the outside of the knife head structure. The cleaning part is used to increase the friction between the roller 3 and the hair 6, so as to drive the hair 6 to move. The structure of the cleaning part can be convex points all over the outer wall of the roller 3, or multiple convex strips 31 or scrapers that can extend in the radial direction of the roller 3.

[0028] The cutter head structure of this embodiment is convenient for hair discharge, and a roller 3 is installed on the cutter holder 1. During the hair 6 trimming process, the roller 3 can roll so that the hair 6 can be discharged along with the shaving foam by the cleaning part, which greatly reduces the adhesion of the hair 6 on the blade 2 and the skin surface, and can also reduce the accumulation of the hair 6 in the gap, thereby improving the self-cleaning ability of the hair 6 trimmer.

[0029] Optionally, combined Figure 1 , Figure 3 , Figure 4 , Figure 5As shown, the cleaning portion includes a plurality of convex strips 31 arranged at intervals on the circumferential outer wall of the roller 3; the plurality of convex strips 31 are arranged at intervals, preferably evenly distributed in the circumferential direction of the roller 3, to ensure that the cleaning portion has a wider coverage range, thereby ensuring that the cleaning portion can drive the hair 6 to move during the entire rotation process of the roller 3; the convex strips 31 can increase the friction between the roller 3 and the hair 6, ensuring that the hair 6 can be driven to move and be discharged smoothly; the design of the plurality of convex strips 31 can improve the efficiency of the cleaning portion, making it easier to capture and remove the hair 6, and reducing the accumulation of hair 6 in the cutter head structure.

[0030] Optionally, combined Figure 3 , Figure 4 As shown, the blade 2 is provided with a blade 21 for cutting the hair 6, and the roller 3 is arranged close to the blade 21; the blade 21 may be sharp, slightly serrated or in other shapes to ensure effective cutting of the hair 6; the roller 3 is arranged close to the blade 21, and the roller 3 is located at the front side of the blade 21, so that the hair 6 cut by the blade 21 can be driven and discharged by the cleaning part in time; the coordinated work of the blade 21 and the roller 3 improves the cutting and hair removal efficiency, ensures that the hair 6 can be quickly cleaned after cutting, and reduces the possibility of accumulation.

[0031] Optionally, combined Figure 3 , Figure 4 As shown, the roller 3 is unidirectionally rotatable relative to the blade holder 1; the unidirectional rotation means that the roller 3 can roll freely in one direction, but may be restricted in another direction, that is, it can only rotate in the direction opposite to the moving direction of the blade holder 1, which can prevent the roller 3 from reversing and bringing back the hair 6; the unidirectional rotation can be achieved by arranging a one-way bearing at the end of the roller 3.

[0032] Optionally, combined Figure 2 , Figure 3 As shown, a hollow portion 11 for discharging hair 6 is provided on the side of the blade holder 1 away from the blade 2; the hollow portion 11 allows the hair 6 cut by the blade 2 to be smoothly discharged to the outside, that is, the hair 6 is discharged together with the shaving foam under the action of its own gravity, effectively reducing the accumulation of hair 6 in the blade head structure, and the hollow portion 11 also makes it easier for the user to clean the hair 6 remaining on the blade head structure.

[0033] Optionally, combined Figure 5 As shown, the left and right ends of the roller 3 are respectively provided with a pin shaft 32, and the left and right sides of the tool holder 1 are respectively provided with an axial hole 12 that cooperates with the pin shaft 32; the pin shaft 32 is an axis protruding from both ends of the roller 3, and the axial hole 12 is a hole or groove for accommodating the pin shaft 32. The pin shaft 32 cooperates with the axial hole 12 to ensure that the roller 3 can be firmly installed on the tool holder 1, so that the roller 3 can stably rotate on the tool holder 1 and maintain its normal rolling motion.

[0034] Optionally, combined Figure 1 As shown, the front side of the blade holder 1 is connected to a rubber strip 4 and the rear side is connected to a lubricating strip 5; the rubber strip 4 is made of rubber and is used to comb the hair 6 to a suitable state to facilitate cutting by the blade 2; the material of the lubricating strip 5 is preferably aloe vera, which has the effect of lubricating and soothing the skin, providing a softer and skin-protecting use experience, reducing the irritation to the skin during trimming, and providing a more comfortable trimming experience, especially suitable for sensitive skin; the lubricating strip 5 is arranged on the rear side of the blade 2 to ensure that the skin can contact the lubricating strip 5 in time after trimming the hair 6. The lubricating strip 5 contacts the user's skin to reduce irritation and provide a lubricating effect.

[0035] Optionally, combined Figure 6 As shown, the tool holder 1 is provided with a spring piece 13 for supporting the blade 2 upwards, and both ends of each blade 2 are supported by a spring piece 13 respectively to fix the position of the blade 2. The assembly structure is simple, which helps to improve the assembly efficiency; the spring piece 13 is preferably injection molded as one piece with the tool holder 1, which saves assembly steps and has a more solid structure. The spring piece 13 has a certain amount of elasticity and can be automatically adjusted according to the actual size of the blade 2 to ensure that the assembled blades 2 can be fixed in position, which can reduce the processing accuracy requirements of the blade 2 itself.

[0036] Optionally, combined Figures 1 to 5 As shown, there are two rollers 3, which are arranged at intervals. The blade 2 is arranged behind each roller 3, that is, an arrangement structure of roller 3, blade 2, roller 3, and blade 2 is formed from front to back; the interval between the two rollers 3 allows them to roll independently, while also ensuring their coordinated work to jointly push the cut hair 6 to move and discharge; the structure of the combination of multiple groups of blades 2 and rollers 3 can effectively improve the cutting efficiency and the hair 6 discharge efficiency, and also make the hair 6 trimmed more evenly.

[0037] Optionally, combined Figure 1 , Figure 3 , Figure 4 As shown, two blades 2 are arranged behind each roller 3, that is, each roller 3 corresponds to two blades 2, which improves the cutting efficiency, ensures that more hair 6 can be cut in a single rolling, and ensures the compactness of the structure.

[0038] Another embodiment of the present invention provides a hair trimmer 6, comprising the above-mentioned cutter head structure for facilitating hair discharge.

[0039] In the hair trimmer of this embodiment, a roller 3 is installed on the blade holder 1. During the hair trimming process, the roller 3 can roll so that the hair 6 can be discharged along with the shaving foam by the cleaning part, which greatly reduces the adhesion of the hair 6 on the blade 2 and the skin surface, and can also reduce the accumulation of the hair 6 in the gap, thereby improving the self-cleaning ability of the hair trimmer.

[0040] Although the disclosure is as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A cutter head structure for facilitating hair removal, characterized in that: The invention comprises a knife holder (1) and at least one blade (2) mounted on the knife holder (1); the knife holder (1) is rollingly connected to a roller (3); the outer wall of the roller (3) is provided with a cleaning portion for driving the hair (6) cut by the blade (2) to move and discharge; the cleaning portion is a convex point or a convex strip (31) or a scraper.

2. The cutter head structure for facilitating hair removal according to claim 1, characterized in that: The cleaning portion is a plurality of convex strips (31), and the plurality of convex strips (31) are arranged at intervals on the circumferential outer wall of the roller (3).

3. The cutter head structure for facilitating hair removal according to claim 1, characterized in that: The blade (2) is provided with a cutting edge (21) for cutting hair (6), and the roller (3) is arranged close to the cutting edge (21).

4. The cutter head structure for facilitating hair removal according to claim 1, characterized in that: The roller (3) is arranged to rotate in one direction relative to the tool holder (1).

5. The cutter head structure for facilitating hair removal according to claim 1, characterized in that: A hollow portion (11) for discharging hair (6) is provided on a side of the blade holder (1) away from the blade (2).

6. The cutter head structure for facilitating hair removal according to claim 1, characterized in that: The left and right ends of the roller (3) are respectively provided with pin shafts (32), and the left and right sides of the tool holder (1) are respectively provided with shaft holes (12) that match the pin shafts (32).

7. The cutter head structure for facilitating hair removal according to claim 1, characterized in that: The front side of the knife holder (1) is connected to a rubber strip (4), and the rear side is connected to a lubricating strip (5); the knife holder (1) is provided with a spring sheet (13) for supporting the blade (2) upward, and each blade (2) is supported at both ends by a spring sheet (13).

8. The cutter head structure for facilitating hair removal according to any one of claims 1 to 7, characterized in that: There are two rollers (3), which are arranged at an interval, and the blade (2) is arranged behind each roller (3).

9. The cutter head structure for facilitating hair removal according to claim 8, characterized in that: Two blades (2) are arranged behind each roller (3).

10. A hair trimmer, characterized in that: It comprises a cutter head structure for facilitating hair discharge as described in any one of claims 1 to 9.