Shaver with swinging type shaver head

By setting a connection fulcrum and an included angle α between the shaver head and the body, combined with an arc and interference fit, the shaver head achieves adaptive oscillation, solving the problems of shaver head offset and insufficient support in existing shavers, and improving shaving effect and stability.

CN223685480UActive Publication Date: 2025-12-19WENZHOU RUNWE ELECTRICAL APPLIANCE
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Patent Information

Application Number
CN202423303076.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-12-19
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Existing razor heads are prone to plastic deformation under strong external force, causing them to shift, and the spring structure lacks sufficient support, making it unable to effectively conform to the skin.

Method used

The blade head is fixed to the body via a connecting fulcrum. The blade head swings left and right relative to the body using the gap at angle α. Combined with the arc design and interference fit of the protrusions and concave holes, the blade head can adaptively conform to the skin.

Benefits of technology

The shaving head fits snugly against the skin without requiring the user to change hand position, improving shaving performance and stability while avoiding the shifting issues caused by the spring structure.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223685480U_ABST
Patent Text Reader

Abstract

A shaver with a swing-type shaver head comprises a shaver body, one end of the shaver body is provided with a matching part towards the shaver head; the tool bit is detachably arranged at the upper end of the machine body and provided with a plurality of rotary cutting assemblies, a connecting fulcrum is arranged between the tool bit and the matching part, and an included angle alpha is formed between a straight line L1 between the lowest point of the upper end of the machine body and the connecting fulcrum and a straight line L2 between the lowest end of the tool bit and the connecting fulcrum; and the tool bit swings left and right between the included angle a relative to the connecting fulcrum under the action of external force. After the tool bit and the machine body are combined, the tool bit and the machine body are fixed through the connecting fulcrum, the tool bit can rotate relative to the connecting fulcrum, a certain angle a exists between the lower end face of the tool bit and the upper end face of the machine body, and the tool bit can swing left and right relative to the machine body through a gap generated by the included angle a. Therefore, the hand-held direction does not need to be changed during use, and relative swinging of the cutter head is directly utilized to be attached to the skin.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of shaver, specifically relates to a head swing type shaver. BACKGROUND

[0002] The head of the shaver needs to realize multi-angle rotation to fit the skin of the user for shaving and cleaning, and the existing shaver generally adopts a spring structure to realize multi-angle rotation of the head, but the spring structure is prone to plastic deformation under a large external force, resulting in deviation of the head, and the spring structure lacks support and cannot make the head fit the skin of the user.

[0003] To this end, a shaver head seat structure is disclosed in Chinese patent CN221872077U, which sets a floating head seat in the head to realize relative floating of the head by the head seat. However, this method still needs to adjust the angle of the hand according to the curvature of the skin surface during use. SUMMARY

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a head swing type shaver.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A head swing type shaver comprises:

[0007] A machine body is provided with a matching part at one end towards the head direction;

[0008] A head is detachably arranged at the upper end of the machine body, provided with a plurality of rotary cutting components, and a connecting fulcrum between the head and the matching part,

[0009] A straight line L1 between the lowest point of the upper end of the machine body and the connecting fulcrum and a straight line L2 between the lowest end of the head and the connecting fulcrum have an included angle a, and the head swings left and right between the included angle a relative to the connecting fulcrum under the action of an external force.

[0010] The included angle a is between 5-15°.

[0011] The lower end surface of the head is designed as an arc line, the upper end surface of the machine body is matched with the lower end surface of the head, and there is a gap between the arc line of the lower end surface of the head and the arc line of the upper end surface of the machine body.

[0012] The matching part is a supporting wall arranged at the center of the upper end of the machine body, the supporting wall is provided with a convex point, and the inner wall of the head is provided with a concave hole matched with the positioning convex point.

[0013] The lower side of the concave hole is provided with an obliquely arranged embedding surface.

[0014] The support walls are symmetrically arranged on the front and back sides of the upper end of the machine body.

[0015] The utility model discloses the beneficial effect of: utilize the combination after the cutter head and the machine body, and the cutter head is fixed through the connecting fulcrum between the cutter head and the machine body, and the cutter head can rotate relative to the connecting fulcrum, utilize the certain angle a between the lower end surface of cutter head and the upper end surface of machine body, utilize the clearance of the included angle a, so that the cutter head can swing left and right relative to the machine body, and then can not change the hand direction when using, directly utilize the relative swing of cutter head, and skin is combined. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structural schematic diagram of the utility model.

[0017] Figure 2 It is the cross section schematic diagram of the utility model.

[0018] Figure 3 It is the explosion schematic diagram of the cutter head and the machine body of the utility model. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0020] It should be explained that all directionality indications such as up, down, left, right, front, back in the embodiments of the utility model are only used for explaining the relative position relationship, movement condition and the like between the components in a certain specific posture such as shown in the drawings, if the specific posture changes, then the directionality indications also change accordingly.

[0021] As Figure 3 The utility model discloses a cutter head swing type shaver, it includes machine body 200 and cutter head 100, compared with the cooperation mode of the cutter head and the machine body of prior art, the application utilizes two connecting fulcrums as the connecting structure of cutter head and machine body, and then the cutter head can swing relative to the machine body.

[0022] The machine body 200 is provided with a matching part 500 towards the cutter head direction at one end, and the machine body 200 is internally provided with a power mechanism and control mechanism for driving the rotation of the rotary cutting assembly of the cutter head, which is consistent with the existing product, so it is not described in detail, and because the transmission assembly cooperating with the cutting assembly itself has a spring, so in the actual process, the height difference caused by the cutter head swinging relative to the machine body does not affect the skin adhesion of the cutting assembly.

[0023] The cutter head 100 is detachably mounted on the upper part of the machine body and has several rotary cutting components 400. A connecting fulcrum 300 is provided between the cutter head and the mating part. The cutter head includes a cutter holder and cutting components mounted on the cutter holder. There can be two or more cutting components. In this embodiment, two are used as an example. They are arranged along the swing direction. At the same time, the detachable arrangement of the cutter head 100 and the machine body can better clean up the cut hair.

[0024] like Figure 1 As shown, the straight line L1 between the lowest point of the upper end of the machine body 200 and the connecting fulcrum 300 forms an angle α with the straight line L2 between the lowest point of the cutter head 100 and the connecting fulcrum 300, and the cutter head swings left and right relative to the connecting fulcrum 300 within the angle α under the action of external force.

[0025] That is, the connecting fulcrum is located at the highest point, and the machine body extends downward on both sides with the connecting fulcrum as the center. Similarly, the cutter head also extends downward on both sides with the connecting fulcrum as the center, and there is an angle between the two extension lines, which makes a gap between them, allowing the cutter head to swing left and right relative to the connecting fulcrum within the angle range.

[0026] In this embodiment, the straight line on the end face can also be an arc.

[0027] The included angle α is between 5 and 15° to match the angle changes of a human face and to better support the original transmission component for the cutting component, so as not to cause the cutting component to fail to transmit power due to excessive height difference.

[0028] The lower end face of the cutter head 100 is designed with an arc, and the upper end face of the machine body 200 is adapted to the lower end face of the cutter head 100. There is a gap between the arc of the lower end face of the cutter head 100 and the arc of the upper end face of the machine body 200. The existence of the gap allows the cutter head to swing relative to the machine body without being interfered with by the machine body, thus affecting the swing angle.

[0029] Example

[0030] like Figure 2 As shown, the mating part 500 is a support wall located at the center of the upper end of the machine body 200. The support wall has a protrusion, and the inner wall of the cutter head has a recessed hole that matches the positioning protrusion. In this embodiment, an interference fit is used to mate the cutter head with the machine body. After mating, the protrusion is embedded in the recessed hole. The protrusion is a round shaft or a dot, allowing the cutter head to swing relative to the protrusion.

[0031] The lower side of the recess is provided with an inclined embedding surface, which allows the protrusion to slide into the recess relative to the embedding surface, making it easier to install.

[0032] The support wall is symmetrically arranged on the front and back sides of the upper end of the machine body, and the thin wall design allows it to slightly deform when subjected to external force, thereby sliding out of the recess, and further, a corresponding inclined surface can be arranged on the sliding-out side to reduce the difficulty of disassembly.

[0033] In some other embodiments, a relatively slidable shaft member can also be used, similar to the buckle type connection of the existing shaver, by pressing the key to move inward, thereby releasing the cooperation with the head, and under the condition that the key is not subjected to force, the internal spring gives it a force to move outward, thereby maintaining the shaft connection of the two.

[0034] The embodiments should not be regarded as limiting the utility model, but any improvement made on the basis of the spirit of the utility model should be within the protection scope of the utility model.

Claims

1. A shaving razor having a head oscillation, characterized in that: It includes: The fuselage (200) is provided with a matching part (500) at one end towards the cutter head direction; The cutter head (100) is detachably arranged at the upper end of the fuselage, provided with a plurality of rotary cutting assemblies (400), and provided with a connecting fulcrum (300) between the matching part, The straight line L1 between the lowest point of the upper end of the fuselage (200) and the connecting fulcrum (300) and the straight line L2 between the lowest end of the cutter head (100) and the connecting fulcrum (300) exist an angle a, and the cutter head swings left and right relative to the connecting fulcrum (300) under the action of external force.

2. A shaving razor according to claim 1 characterized in that: The angle a is between 5-15°.

3. A shaving razor according to either claim 1 or claim 2 wherein: The lower end surface of the cutter head (100) is designed as an arc line, the upper end surface of the fuselage (200) is matched with the lower end surface of the cutter head (100), and there is a gap between the arc line of the lower end surface of the cutter head (100) and the arc line of the upper end surface of the fuselage (200).

4. A shaving razor according to claim 3 wherein: The matching part (500) is a supporting wall arranged at the center of the upper end of the fuselage (200), the supporting wall is provided with a convex point, and the inner wall of the cutter head is provided with a concave hole matched with the convex point.

5. A shaving razor according to claim 4 wherein: The lower side of the concave hole is provided with an obliquely arranged embedding surface.

6. The shaving head oscillating shaver of claim 4, characterized in that: The supporting wall is symmetrically arranged on the front and rear sides of the upper end of the fuselage.

Citation Information

Patent Citations

  • Tool apron structure of shaver

    CN221872077U