Shaver head for portable shaver

Abstract

A razor head for a portable razor, comprising: a razor holder having a central axis; the knife net is arranged in the knife net frame; the movable cutter assembly is configured to be in cutting fit with the cutter net; the floating cutter head frame is matched with the cutter net frame, the movable cutter assembly makes contact with the inner surface of the cutter net, and the floating cutter head frame comprises a movable cutter supporting frame with a through hole; at least two knife net supporting frames; the elastic supporting arm extends from one side of any one knife net supporting frame to the adjacent knife net supporting frame, a first protrusion arranged in the direction of the inner wall of the knife net frame is formed at the tail end of the elastic supporting arm, a limiting groove is formed in the inner wall of the knife net frame, and the first protrusion is embedded in the limiting groove. According to the portable shaver, the floating shaver head frame is modified, the elastic supporting arm serves as a limiting structure by rotating the caliper elastic supporting arm, meanwhile, the floating effect can be achieved, the structure is simpler and more compact, and the requirement for the small size of the portable shaver can be met.

Description

Technical Field

[0001] This utility model relates to personal care devices, specifically to a razor head for a portable razor. Background Technology

[0002] The head assembly of an electric shaver generally includes a stationary foil and a rotating blade located under the foil. By bringing the shaver close to the face, the beard is inserted into the foil, and electricity is used to drive the rotating blade to cut the hair that is in contact with the cutting edge of the rotating blade.

[0003] For portability, current shavers are designed to be small in size. Therefore, a single shaver head can be used as the shaving function. At the same time, the detachable design of the shaver head must be considered. Therefore, a corresponding floating head holder needs to be added to the foil cover and moving blades to keep the moving blades always attached to the foil cover. For the shaver head, ensuring the elasticity of the floating head holder is the basis for realizing the floating head. At the same time, minimizing the size of the head assembly while ensuring elasticity is also a necessary condition for reducing the size of the shaver. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a shaving head for a portable razor.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A razor head for a portable razor, comprising:

[0007] The knife-blade frame has a central axis;

[0008] A blade net is configured within the blade net frame;

[0009] The moving blade assembly is configured to engage with the blade mesh for cutting;

[0010] A floating cutter head holder, which cooperates with the cutter head holder to bring the moving cutter assembly into contact with the inner surface of the cutter head, and the floating cutter head holder includes:

[0011] A moving tool support bracket with through holes;

[0012] At least two blade support frames are formed by extending outward in the circumferential direction along the moving blade support frame, and a gap is formed between adjacent blade support frames;

[0013] The elastic support arm extends from one side of any one of the cutter mesh support frames toward the adjacent cutter mesh support frame, and its end has a first protrusion facing toward the inner wall of the cutter mesh frame.

[0014] The inner wall of the blade holder is provided with a limiting groove, and the first protrusion is embedded in the limiting groove.

[0015] The blade support frame and the elastic support arm are arranged concentrically with the moving blade support frame.

[0016] The inner wall of the blade frame is symmetrically provided with limiting blocks, and the surface of the limiting blocks is provided with limiting grooves.

[0017] The inner wall of the blade holder is symmetrically provided with stop blocks, and the stop blocks are coaxially arranged with the limiting block.

[0018] The arc length between two adjacent limiting blocks is adapted to the arc length of a knife net support frame and an elastic support arm.

[0019] The floating cutter head holder has a rotation direction that switches between an unlocked and locked state, and during rotation, the first protrusion of the elastic support arm has an unlocked state that is disengaged from the limiting groove and a locked state that is placed in the limiting groove.

[0020] The elastic support arm extends in the opposite direction of rotation from the blade support frame.

[0021] The front end of the blade support frame is provided with a second protrusion extending in the direction of rotation, and when in the locked state, the second protrusion abuts against the limiting block on the inner wall of the blade frame.

[0022] The outer wall of the elastic support arm is located inside the outer wall of the knife net support frame.

[0023] The upper surface of the blade mesh support frame is provided with several support blocks.

[0024] The beneficial effects of this utility model are as follows: This application modifies the floating head holder by using a rotating caliper elastic support arm, which serves as a limiting structure and also achieves a floating effect. This structure is simpler and more compact, and can meet the miniaturization requirements of portable shavers. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model.

[0026] Figure 2 This is a schematic diagram of the locked state disclosed in this utility model.

[0027] Figure 3 This is a schematic diagram of the unlocked state disclosed in this utility model.

[0028] Figure 4 for Figure 2 A cross-sectional schematic diagram of AA.

[0029] Figure 5 for Figure 2A cross-sectional view of BB.

[0030] Figure 6 This is a schematic diagram of the knife spacer structure.

[0031] Figure 7 This is the front view of the floating tool holder.

[0032] Figure 8 This is a schematic diagram of the floating tool head holder.

[0033] Figure 9 This is a schematic diagram of the moving blade assembly.

[0034] Figure 10 This is a cross-sectional schematic diagram of the moving blade assembly. Detailed Implementation

[0035] 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.

[0036] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0037] like Figure 1 As shown, this utility model discloses a shaving head for a portable razor. The shaving head has a small thickness and can be detachably connected to the razor body, making it easy to clean up the hair clippings generated during shaving.

[0038] The shaver head includes a foil frame and a foil, a moving blade assembly, and a floating head holder, which are placed sequentially inside the foil frame. The floating head holder is used to fix the foil and the moving blade assembly inside the foil frame to form a whole, so that they will not fall apart when disassembled.

[0039] like Figure 6 As shown, the knife frame 100 is ring-shaped and extends vertically through the frame. It has a central axis, which is its axial direction. Figure 4 As shown by the dashed line, the upper end of the blade holder is bent inward to form a protrusion for restricting the blade. The blade can be fixed between the floating blade holder and the protrusion, as shown in the figure. Figure 5As shown, the inner wall of the knife frame 100 is provided with a limiting groove 120, and the first protrusion 431 is embedded in the limiting groove 120. The limiting groove is set along the central axis and is long and narrow, which facilitates the first protrusion to be inserted.

[0040] The blade mesh 200 is disposed within the blade mesh frame 100, with its edges bent outwards for engagement with the boss.

[0041] like Figure 9 and Figure 10 As shown, the moving blade assembly 300 is configured to form a cutting engagement with the blade net 200. The moving blade assembly 300 includes a moving blade holder 340, a moving blade 310 disposed on the moving blade holder 340, and a moving blade linkage seat 330 that cooperates with the moving blade holder 340. The moving blade linkage seat 330 is vertically floating within the moving blade holder 340 and is used for linkage with the motor shaft of the shaver. A support plate 320 is provided between the moving blade holder and the moving blade to increase the strength of the moving blade. The moving blade holder also has several positioning shafts for limiting the movement of the moving blade. An elastic element, such as a spring, is provided between the moving blade linkage seat and the moving blade holder. The bottom of the moving blade holder has a mounting cavity, within which the moving blade can be movably disposed, thus utilizing the spring to give the structure a certain floating effect.

[0042] like Figure 7 and Figure 8 As shown, the floating cutter head holder 400 cooperates with the cutter head holder 100 to bring the moving cutter assembly 300 into contact with the inner surface of the cutter head 200. The floating cutter head holder 400 includes an integrally formed moving cutter support frame, a cutter head support frame, and an elastic support arm. The cutter head support frame is formed by an inclined arm extending from the moving cutter support frame, and the elastic support arm extends from the cutter head support frame in the same plane. The cutter head support frame 420 and the elastic support arm 430 are arranged concentrically with the moving cutter support frame 410. Figure 2 As shown by the dotted line, the ring formed by the blade support frame 420 and the elastic support arm 430 is on the outside of the moving blade support frame.

[0043] The moving tool support frame 410 has a through hole. The support frame is annular columnar. For better operation, its bottom can extend slightly outward to form an operating part. A corresponding rotation direction can be set on the operating part to indicate the locking direction. The through hole in the middle is used for the motor shaft to pass through and link with the moving tool linkage seat 330.

[0044] At least two blade support frames 420 extend outward in the circumferential direction along the moving blade support frame 410, and a gap l is formed between adjacent blade support frames 420, such as... Figure 3 As shown by the dashed line, there are two knife net support frames, which are symmetrically arranged and distributed in an arc shape. There is a gap l between the two knife net support frames, which can be the arc length.

[0045] The elastic support arm 430 extends from one side of any one of the knife net support frames 420 toward the adjacent knife net support frame 420, and its end has a first protrusion 431 facing toward the inner wall of the knife net frame 100. The thickness of the elastic support arm is less than the thickness of the knife net support frame, and the connection between the two is smooth, so that the elastic support arm has a certain elastic deformation capability, and thus, after it is used in conjunction with the knife net frame, it can achieve the effect of floating support.

[0046] How to operate the floating tool holder:

[0047] like Figure 3 As shown, place the floating tool head holder into the tool holder, with the rear end of the tool holder support close to the limiting block and the elastic support arm located behind another limiting block. Then proceed as follows... Figure 3 As shown in the diagram, when the elastic support arm rotates in the direction of rotation, the first protrusion moves towards the limiting block in front of the rotation direction. After rotating a certain angle, the first protrusion contacts the limiting block, and when subjected to continued force, the elastic support arm deforms inward, in the direction shown in the diagram. Figure 7 As shown by the arrow, this causes the first protrusion to engage with the limiting groove, as... Figure 2 As shown, at this time, the second protrusion of the blade support frame abuts against the limiting block, restricting it from continuing to rotate in the rotation direction, thus completing the locking.

[0048] Because the first protrusion of the elastic support arm engages with the limiting groove, the floating cutter head is locked. Since the entire floating cutter head is fixed to the cutter head frame only through the elastic support arm, the elastic deformation force of the elastic support arm can be used to achieve the floating effect of the cutter head frame when it is under force.

[0049] The inner wall of the blade holder 100 is symmetrically provided with limiting blocks 110, and the surface of the limiting block 110 is provided with a limiting groove 120. The limiting block can also play a positioning role to position the blade and ensure that the blade does not rotate.

[0050] The inner wall of the knife mesh frame 100 is symmetrically provided with stop blocks 130, and the stop blocks 130 are coaxially arranged with the limiting block 110. The presence of the stop blocks can prevent the elastic support arm from being directly stuck into the limiting groove, which would cause damage to the elastic support arm.

[0051] The arc length between two adjacent limiting blocks 110 is adapted to the arc length of a knife net support frame 420 and an elastic support arm 430, so that the two can move between the two limiting blocks and the elastic support arm can more easily insert the first protrusion into the limiting groove. Preferably, the side of the limiting block opposite to the rotation direction has a certain slope, which can better allow the first protrusion to enter.

[0052] The front and rear sides of the first protrusion are both sloping, which facilitates unlocking or locking operations.

[0053] The floating cutter head holder 400 has a rotation direction that switches between an unlocked and a locked state, and during rotation, the first protrusion 431 of the elastic support arm 430 has an unlocked state that is disengaged from the limiting groove 120 and a locked state that is placed in the limiting groove 120.

[0054] The elastic support arm 430 extends in the opposite direction of rotation from the blade support frame 420, so that it can deform inward when it contacts the limiting block, thereby locking the first protrusion into the limiting groove.

[0055] The front end of the blade support frame 420 is provided with a second protrusion 422 extending in the rotation direction. When it is in the locked state, the second protrusion 422 abuts against the limiting block 110 on the inner wall of the blade frame 100, which plays the role of maximum rotation limiting.

[0056] The outer wall of the elastic support arm 430 is located inside the outer wall of the blade support frame 420, such as... Figure 7 As shown by the dotted line, the outermost end of the first protrusion is located on the outer side of the outer wall of the knife net support frame, so that the first protrusion can be embedded in the limiting groove.

[0057] The upper surface of the blade support frame 420 is provided with several support blocks 421, which are used to support the blade.

[0058] The embodiments should not be regarded as limitations on the present invention, but any improvements made based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. A shaving head for a portable razor, characterized in that: It includes: The knife-edge frame (100) has a central axis; A blade net (200) is disposed within the blade net holder (100); The moving blade assembly (300) is configured to engage with the blade net (200) for cutting; A floating cutter head holder (400) cooperates with the cutter head holder (100) to bring the moving cutter assembly (300) into contact with the inner surface of the cutter head holder (200), and the floating cutter head holder (400) includes: A moving tool support bracket (410) with through holes; At least two blade support frames (420) are formed by extending outward in the circumferential direction along the moving blade support frame (410), and a gap is formed between adjacent blade support frames (420); The elastic support arm (430) extends from one side of any one of the knife net support frames (420) toward the adjacent knife net support frame (420), and its end has a first protrusion (431) facing toward the inner wall of the knife net frame (100). The inner wall of the knife frame (100) is provided with a limiting groove (120), and the first protrusion (431) is embedded in the limiting groove (120).

2. A shaving head for a portable razor according to claim 1, characterized in that: The blade support frame (420), the elastic support arm (430), and the moving blade support frame (410) are arranged at the same center.

3. A shaving head for a portable razor according to claim 1, characterized in that: The inner wall of the knife frame (100) is symmetrically provided with limiting blocks (110), and the surface of the limiting blocks (110) is provided with limiting grooves (120).

4. A shaving head for a portable razor according to claim 3, characterized in that: The inner wall of the knife mesh frame (100) is symmetrically provided with stop blocks (130), and the stop blocks (130) and the limiting block (110) are coaxially arranged.

5. A shaving head for a portable razor according to claim 1, characterized in that: The arc length between two adjacent limiting blocks (110) is adapted to the arc length of a knife net support frame (420) and an elastic support arm (430).

6. A shaving head for a portable razor according to claim 1, characterized in that: The floating cutter head holder (400) has a rotation direction that switches between an unlocked and locked state, and during rotation, the first protrusion (431) of the elastic support arm (430) has an unlocked state that is disengaged from the limiting groove (120) and a locked state that is placed in the limiting groove (120).

7. A shaving head for a portable razor according to claim 6, characterized in that: The elastic support arm (430) extends in the opposite direction of rotation from the knife net support frame (420).

8. A shaving head for a portable razor according to claim 6, characterized in that: The front end of the blade support frame (420) is provided with a second protrusion (422) extending in the rotation direction, and when in the locked state, the second protrusion (422) abuts against the limiting block (110) on the inner wall of the blade frame (100).

9. A shaving head for a portable razor according to claim 1, characterized in that: The outer wall of the elastic support arm (430) is located inside the outer wall of the knife net support frame (420).

10. A shaving head for a portable razor according to claim 1, characterized in that: The upper surface of the knife net support frame (420) is provided with several support blocks (421).

Images