Elastic rotating structure of tool bit set of manual hair removing tool

By designing an elastic rotating structure for the blade assembly of a manual hair removal razor, the problem of uneven pressure on the complex contours of the skin in traditional hair removal razors is solved, achieving adaptive fitting and improving shaving effect and user experience.

CN224210004UActive Publication Date: 2026-05-08NINGBO MEICHAOFENG DAILY NECESSITIES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO MEICHAOFENG DAILY NECESSITIES CO LTD
Filing Date
2025-06-03
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Traditional razor blades cannot adapt to the unevenness of the skin surface, resulting in uneven pressure, skin irritation, and hair residue.

Method used

A manual hair removal razor head assembly with an elastic rotating structure was designed, including a pressure fitting component and a rotating component. The razor head achieves adaptive fitting by utilizing the sliding cooperation of the pressure spring and the rotating block, and the contact pressure between the razor head and the skin is adjusted by elastic deformation.

Benefits of technology

It effectively solves the problem of uneven pressure on the complex contours of the skin caused by traditional razors, improving shaving results and user comfort, and avoiding skin irritation and hair residue.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an elastic rotation structure of a tool bit group of a manual hair removal cutter, which relates to the technical field of hair removal cutters and comprises a handle bottom cover and a pressure fitting component, the pressure fitting component comprises a semi-arc block fixedly connected to the handle bottom cover, a sliding groove is formed in the semi-arc block, a rotating block is connected to the sliding groove in a sliding manner, and the rotating block is provided with a rotating shaft. A mounting seat is fixedly connected to the interior of the handle bottom cover, and a pressure elastic piece is fixedly connected to the top end of the mounting seat; the bottom end of the handle bottom cover is fixedly connected with a top rotating ring, and the interior of the top rotating ring is fixedly connected with an extension block; by means of the design, when the skin protrudes, the scalpel head can float upwards to prevent the skin from being stimulated by overlarge pressure; when the skin is sunken, the tool bit can extend downwards under the action of the elastic piece, contact pressure is kept, hair is prevented from remaining, the problems of skin irritation and hair remaining caused by uneven pressure when a traditional hair removing tool shaves are effectively solved, and the shaving effect and use experience of the manual hair removing tool are improved.
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Description

Technical Field

[0001] This utility model relates to the field of depilatory razor technology, and in particular to a structure for elastically rotating the blade head assembly of a manual depilatory razor. Background Technology

[0002] A hair removal razor is a tool that removes hair from the human body surface through physical cutting, plucking, or light energy. Common types include manual models that use a blade to manually cut the hair, which are portable but require lubrication.

[0003] Traditional razors typically use a fixed-pressure blade support method, which cannot adapt to the unevenness of the skin surface. When shaving complex contour areas of the skin, the pressure between the blade and the skin is uneven, which can easily lead to excessive pressure in some areas causing skin irritation, while insufficient pressure in other areas results in hair residue.

[0004] Therefore, this utility model provides a structure for the elastic rotation of the manual depilatory razor head assembly. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a structure for the elastic rotation of the manual depilatory razor head assembly.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a structure for elastic rotation of a manual hair removal razor head assembly, including a handle bottom cover and a pressure bonding component. The pressure bonding component includes a semi-arc block fixedly connected to the handle bottom cover. A sliding groove is provided inside the semi-arc block, and a rotating block is slidably connected to the sliding groove. A mounting base is fixedly connected inside the handle bottom cover, and a pressure spring is fixedly connected to the top of the mounting base.

[0007] The rotating assembly has a top rotating ring fixedly connected to the bottom end of the handle bottom cover, an extension block fixedly connected inside the top rotating ring, and a bottom rotating ring rotatably connected to the outside of the top rotating ring.

[0008] In a preferred embodiment, a handle top cover is provided at the top of the handle bottom cover, and a blade is fixedly connected to the bottom end of the bottom rotating ring.

[0009] In a preferred embodiment, the handle top cover has four internal corner holes, and the handle bottom cover has four internal corner posts fixedly connected to it.

[0010] In a preferred embodiment, the outer side of the locking pin is inserted into the locking hole.

[0011] In a preferred embodiment, the end of the pressure spring away from the mounting base is fixedly connected to the rotating block, and the bottom end of the rotating block is fixedly connected to the extension block.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] This invention utilizes a bottom rotating ring to drive the top rotating ring to move. The top rotating ring, through an extension block, drives a rotating block to slide within a groove in a semi-circular block. This causes the pressure spring to undergo elastic deformation, generating a restoring force, which is then transmitted back to the shaving head via the rotating block, extension block, top rotating ring, and bottom rotating ring. This design allows the shaving head to float upwards when encountering raised skin to avoid excessive pressure and skin irritation. When encountering sunken skin, the shaving head can extend downwards under the action of the spring, maintaining contact pressure and preventing hair residue. This effectively solves the problems of skin irritation and hair residue caused by uneven pressure during shaving with traditional razors, improving the shaving effect and user experience of manual razors. Attached Figure Description

[0014] Figure 1 A perspective view of the structure of a manual hair removal razor head assembly that can rotate elastically, as provided by this utility model;

[0015] Figure 2 A schematic diagram of a pressure bonding component structure for a manual hair removal razor head assembly with elastic rotation, provided by this utility model;

[0016] Figure 3 A schematic diagram of the locking post structure for the elastic rotation of the manual depilatory blade head assembly provided by this utility model;

[0017] Figure 4 This utility model provides a schematic diagram of the rotating component structure of a manual depilatory razor head assembly that rotates elastically.

[0018] Legend:

[0019] 1. Handle bottom cover;

[0020] 2. Pressure bonding assembly; 21. Semi-arc block; 22. Slide groove; 23. Rotary block; 24. Mounting base; 25. Pressure spring;

[0021] 3. Rotating assembly; 31. Extension block; 32. Top rotating ring; 33. Bottom rotating ring;

[0022] 4. Handle top cover; 5. Blade head; 6. Clamping hole; 7. Clamping post. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1 - Figure 4 As shown, this embodiment provides a technical solution: a structure for a manual hair removal razor with 5 sets of elastically rotating blades, including a handle base cover 1 and a pressure bonding component 2. The pressure bonding component 2 includes a semi-arc block 21 fixedly connected to the handle base cover 1. A sliding groove 22 is provided inside the semi-arc block 21. A rotating block 23 is slidably connected to the sliding groove 22. A mounting base 24 is fixedly connected inside the handle base cover 1. A pressure spring 25 is fixedly connected to the top of the mounting base 24. The end of the pressure spring 25 away from the mounting base 24 is fixedly connected to the rotating block 23.

[0025] The semi-circular block 21 provides a guiding and supporting base structure for the rotating block 23. Fixed to the handle bottom cover 1, it ensures the stable installation position of the entire pressure-fitting assembly 2 and forms the main frame of the pressure-fitting assembly 2. It provides physical space and a connection basis for the subsequent cooperation between the slide groove 22 and the rotating block 23. The slide groove 22 provides a sliding track for the rotating block 23, restricting its movement trajectory and allowing it to move in a specific direction. This allows the position of the rotating block 23 to be adjusted according to the user's skin contour and shaving pressure changes. The rotating block 23 cooperates with the slide groove 22 to achieve sliding and transmits the elastic force of the pressure spring 25 to the shaving head 5. As a key component for pressure transmission, it... The force generated by the elastic deformation of the pressure spring 25 is used to adjust the pressure of the part connected to the razor head 5 on the skin to achieve the best shaving fit. The mounting base 24 serves as a fixed support point for the pressure spring 25, providing a stable installation position for the pressure spring 25, ensuring that the pressure spring 25 can be correctly installed inside the handle bottom cover 1 and can properly exert its elastic function. The pressure spring 25 generates elastic force. When the user applies a certain force to the razor, the pressure spring 25 will undergo elastic deformation. This force is transmitted through the rotating block 23, so that the razor head 5 can appropriately adjust the degree of fit with the skin according to the magnitude and direction of this force, just like an elastic buffer device, balancing the pressure between the razor head 5 and the skin.

[0026] Rotating component 3, a top rotating ring 32 is fixedly connected to the bottom end of the handle bottom cover 1, an extension block 31 is fixedly connected inside the top rotating ring 32, the bottom end of the rotating block 23 is fixedly connected to the extension block 31, a bottom rotating ring 33 is rotatably connected to the outside of the top rotating ring 32, a handle top cover 4 is provided at the top of the handle bottom cover 1, and a blade head 5 is fixedly connected to the bottom end of the bottom rotating ring 33;

[0027] The top rotating ring 32, as an intermediate component connecting the rotating block 23 and the bottom rotating ring 33, transmits the movement of the rotating block 23 to itself through the extension block 31. Then, through the rotational connection with the bottom rotating ring 33, it realizes the rotational movement of the shaving head 5. At the same time, it provides a stable support platform for the bottom rotating ring 33, allowing the bottom rotating ring 33 to rotate smoothly on its outer side. The extension block 31 transmits the movement of the rotating block 23 to the top rotating ring 32, acting as a bridge for power transmission. It transmits the movement state and force changes of the pressure bonding component 2 to the rotating component 3. It is a key component connecting the pressure bonding component 2 and the rotating component 3. The bottom rotating ring 33 is directly connected to the shaving head 5. Through the rotational connection on the outer side of the top rotating ring 32, it realizes the rotation of the shaving head 5, converting the movement of the top rotating ring 32 into the rotational movement of the shaving head 5, so that the shaving head 5 can rotate flexibly within a certain range to adapt to the shaving angle of different parts of the user's body.

[0028] The handle top cover 4 has four internal corner holes 6, and the handle bottom cover 1 has four internal corner holes 7. The outer side of the clamping pin 7 is inserted into the clamping hole 6.

[0029] The top cover 4 and the bottom cover 1 of the handle cooperate to form a complete outer shell of the shaver handle, providing a closed protective space for the various internal components. At the same time, the internal structure is used to connect and fix it with the bottom cover 1 of the handle. The snap hole 6 cooperates with the snap post 7 on the bottom cover 1 of the handle to tightly connect the top cover 4 and the bottom cover 1 of the handle together. The snap-fit ​​method allows the top cover 4 and the bottom cover of the handle to be assembled quickly and easily, while ensuring the firmness of the connection. The snap post 7 cooperates with the snap hole 6 to position and fix the top cover 4 of the handle, providing an accurate installation position for the top cover 4 of the handle, and ensuring that the connection between the top cover 4 of the handle and the bottom cover 1 of the handle is tight and precise.

[0030] Working principle:

[0031] like Figure 1 - Figure 4 As shown:

[0032] In use: First, when the user holds the bottom cover 1 and top cover 4 of the handle and applies pressure to the skin with the blade 5, the reaction force of the skin is transmitted through the blade 5 to the bottom rotating ring 33. This causes the top rotating ring 32, which is rotatably connected to the bottom rotating ring 33, to have an upward or tilting displacement tendency. This, in turn, causes the rotating block 23, which is fixedly connected to the top of the extension block 31, to slide along a specific arc trajectory within the groove 22 of the semi-arc block 21. This causes the pressure spring 25, which is fixedly connected to the rotating block 23, to become elastic. The deformation causes the pressure spring 25 to generate a reverse elastic restoring force, which is then continuously and evenly transmitted back to the blade head 5 through the rotating block 23, the extension block 31, the top rotating ring 32, and the bottom rotating ring 33. This drives the blade head 5 to always elastically conform to the user's skin contour. When encountering a skin protrusion, the blade head 5 can float upward; when encountering a skin depression, the blade head 5 can extend downward under the action of the pressure spring 25 to maintain contact pressure. This achieves the effect of adapting to the skin contour, buffering the use pressure, and improving comfort.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A structure for a manually operated hair removal razor head assembly that rotates elastically, comprising a handle base cover (1), characterized in that, It also includes a pressure bonding component (2), which includes a semi-circular block (21) fixedly connected to the handle bottom cover (1), a sliding groove (22) is provided inside the semi-circular block (21), a rotating block (23) is slidably connected to the sliding groove (22), a mounting base (24) is fixedly connected inside the handle bottom cover (1), and a pressure spring (25) is fixedly connected to the top of the mounting base (24). The rotating assembly (3) has a top rotating ring (32) fixedly connected to the bottom end of the handle bottom cover (1), an extension block (31) fixedly connected inside the top rotating ring (32), and a bottom rotating ring (33) rotatably connected to the outside of the top rotating ring (32).

2. The structure of a manual hair removal razor head assembly with elastic rotation according to claim 1, characterized in that: The top of the handle bottom cover (1) is provided with a handle top cover (4), and the bottom of the bottom rotating ring (33) is fixedly connected with a blade (5).

3. The structure of a manual hair removal razor head assembly with elastic rotation according to claim 2, characterized in that: The handle top cover (4) has four internal corner holes (6), and the handle bottom cover (1) has four internal corner holes (7).

4. The structure of a manual hair removal razor head assembly with elastic rotation according to claim 3, characterized in that: The outer side of the locking pin (7) is inserted into the locking hole (6).

5. The structure of a manual hair removal razor head assembly with elastic rotation according to claim 1, characterized in that: The end of the pressure spring (25) away from the mounting base (24) is fixedly connected to the rotating block (23), and the bottom end of the rotating block (23) is fixedly connected to the extension block (31).