Shaver blade head capable of smooth operation

Abstract

A shaver blade head capable of smooth operation, the shaver blade head comprising a base (1), wherein a fixed cutter holder (2) is provided on the base (1); an accommodating groove (21) having an opening at the upper end is provided in the fixed cutter holder (2); the fixed cutter holder (2) is provided with fixed cutters (22) on two sides of the opening of the accommodating groove (21), respectively; a blade head frame (3) is provided on the fixed cutter holder (2); a movable blade (4) is provided on the fixed cutter holder (2) in a relatively movable manner; the movable blade (4) is provided with movable cutters (41) corresponding to the fixed cutters (22) on two ends thereof, respectively; the fixed cutters (22) are pressed against the upper end of the movable blade (4); an elastic support (5) is provided in the accommodating groove (21); the elastic support (5) comprises a bottom surface (51) pressed against the bottom wall of the accommodating groove (21) and an elastic wall (52) arranged on the bottom surface (51) and extending upwards to push against the movable blade (4) such that the movable blade (4) is closely attached to the fixed cutters (22); a moving carrier (42) capable of driving the movable blade (4) to move is provided on the movable blade (4); a driving head (43) for connection to power is provided on the moving carrier (42); an intermediate cutter holder (6) moving along with the moving carrier (42) is arranged on the moving carrier (42); an intermediate movable cutter (7) is provided on the intermediate cutter holder (6); and an intermediate cutter mesh (8) covering the intermediate movable cutter (7) is provided on the blade head frame (3). The shaver blade head has a simple structure, and the elastic support makes the movable cutters operate smoothly.

Description

A shaver head with smooth operation

Technical field

[0001] The invention relates to a shaver head. [Background Technology]

[0002] To cut longer body hair, shavers typically use a fixed blade and a moving blade to cut the hair. With the fixed blade positioned at the bottom and the moving blade positioned at the top, this can damage the skin. Later, some designs with the fixed blade positioned at the top and the moving blade positioned at the bottom appeared on the market, such as Patent No. 201420666920.2, entitled "A Stationary Blade for an Electric Shaver and a Blade Assembly Incorporating the Same." While this design prevents skin damage, the moving blade holder is supported by a spring, making it unstable when moving back and forth and resulting in uneven operation.

[0003] [Summary of the invention]

[0004] The object of the present invention is to overcome the deficiencies of the prior art and to provide a shaver head which has a simple structure, is easy to install and operates smoothly.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] The cam is provided with a plurality of movable blades, and the movable blades are respectively provided with a movable blade at both ends of the movable blade and a movable blade corresponding to the fixed blade. The movable blade is pressed against the upper end of the movable blade, and the cam is provided with an elastic frame. The elastic frame includes a bottom surface pressed against the bottom wall of the cam and an elastic wall provided on the bottom surface and extending upward to press the movable blade so that the movable blade is closely attached to the fixed blade. The movable blade is provided with a movable frame capable of driving the movable blade to move, the movable frame is provided with a driving head for receiving power, the movable frame is provided with an intermediate blade frame that moves with the movable frame, the intermediate blade frame is provided with an intermediate movable blade, and the cutter head frame is provided with an intermediate blade net covering the intermediate movable blade.

[0007] The shaver head for a smoothly-running shaver as described above is characterized in that: the fixed blade holder is U-shaped, the fixed blades are arranged at the two end edges of the U-shaped opening and are arranged horizontally, the two side walls of the fixed blade holder are provided with movable blade insertion openings below the fixed blades, the movable blades are arranged in the inner receiving groove, and the movable blades pass through the movable blade insertion openings.

[0008] The shaver head for a smoothly-running shaver as described above is characterized in that the elastic frame is U-shaped, the elastic walls are two side walls of the U-shape, and the two elastic walls are relatively open from bottom to top.

[0009] The above-mentioned shaver head with smooth operation is characterized in that: the elastic wall presses the movable blade through an arc transition, two elastic frames are provided along the length direction of the accommodating groove, and the length of the elastic frame is several times greater than the width of the U-shape of the elastic frame.

[0010] The shaver head for a smoothly-running shaver as described above is characterized in that: a mounting hole is provided at the bottom end of the fixed blade holder, a guide boss is provided on the base that extends from the mounting hole into the accommodating groove, the guide boss is provided with a guide groove, and one end of the movable holder extends into the guide groove.

[0011] The shaver head for a smoothly-running shaver as described above is characterized in that a through hole is provided in the middle of the base, the drive head is provided in the through hole, the movable frame is buckled with the drive head, and a power plug slot is provided on the drive head.

[0012] The shaver head of the shaver having smooth operation as described above is characterized in that: a movable blade hole is provided in the middle portion of the movable blade, the intermediate blade holder and the intermediate movable blade are arranged in the movable blade hole, the intermediate blade holder is provided with a plurality of insertion holes, the movable frame is provided with a plurality of inserting pieces which are inserted into the insertion holes one by one, the intermediate movable blade is in an inverted U shape, the intermediate blade holder is arranged in the inverted U-shaped opening, the side wall of the intermediate movable blade is provided with a plurality of buckle holes and a slot with the opening facing downward, the side wall of the intermediate blade holder is provided with a buckle platform which can be buckled into the buckle hole and an inserting platform which is inserted into the slot, the lower end of the intermediate blade holder is provided with an elastic member groove, and one end of the elastic member groove is pressed against a spring on the movable frame.

[0013] The shaver head for a smoothly-running shaver as described above is characterized in that: the lower end of the fixed blade holder is a plane, the upper end surface of the base is a plane for the lower end of the fixed blade holder to rest against, a plurality of positioning bosses are provided on the upper end surface of the base, and a plurality of positioning holes are provided on the lower end surface of the fixed blade holder for the positioning bosses to be inserted one by one.

[0014] The shaver head for a smoothly-running shaver as described above is characterized in that hooks that are snapped onto the fixed blade holder are provided at the lower ends of the left and right sides of the shaver head frame, and one end of the shaver head frame presses against the opening edge of the accommodating groove and covers the opening of the accommodating groove.

[0015] The shaver head for a smoothly-running shaver as described above is characterized in that: two relatively spaced positioning protrusions are respectively provided on the left and right sides of the shaver head frame, a mounting frame is relatively rotatably plugged into the shaver head frame, an insertion shaft is respectively provided at the left and right ends of the mounting frame, the left and right insertion shafts are respectively inserted from the left and right ends of the shaver head frame, a torsion spring is provided on the insertion shaft, and the torsion spring is respectively pressed against the two positioning protrusions.

[0016] The beneficial effects of the present invention are as follows: by providing an elastic frame, the bottom surface of the elastic frame is pressed against the bottom wall of the accommodating groove, so that the elastic frame is stably installed, and the elastic wall only supports the movable blade upward instead of the movable frame, so that the movable blade is stable when moving, making the movable blade more stable and stable against the fixed blade, and the operation is smooth, the noise is low, the structure is simple, and the installation is convenient; the two side walls of the fixed blade frame are provided with movable blade insertion openings, and the movable blade passes through the movable blade insertion openings, which facilitates the positioning and installation of the movable blade.

Brief Description of the Drawings

[0017] FIG1 is a perspective view of the present invention;

[0018] FIG2 is a cross-sectional view of the present invention;

[0019] FIG3 is an exploded view of the present invention;

[0020] FIG4 is a perspective view of components of the present invention. [Specific implementation method]

[0021] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0022] As shown in Figures 1 to 4, a shaver head for a stable operation includes a base 1, a fixed blade holder 2 provided on the base 1, a receiving slot 21 with an upper opening provided in the fixed blade holder 2, fixed blades 22 arranged in a row on either side of the opening of the receiving slot 21, and the fixed blades 22 arranged in a row. In this embodiment, the fixed blade holder 2 is U-shaped, and the fixed blades 22 are arranged horizontally at the two end edges of the U-shaped opening. The length of the fixed blade holder 2 is several times greater than the width of the U-shaped opening. A cutter head holder 3 is provided on the fixed blade holder 2, and a movable blade 4 is relatively movably provided on the fixed blade holder 2. The movable blade 4 is a flat piece, and movable blades 41 corresponding to the fixed blade 22 are respectively provided at both ends of the movable blade 4. The movable blades 41 are arranged in a row. The fixed blade 22 is pressed against the upper end of the movable blade 4, that is, the fixed blade 22 is on top and the movable blade 4 is on the bottom. The movable blade 41 moves relative to the fixed blade 22 to shear body hair. An elastic frame 5 is installed within the receiving groove 21. The elastic frame 5 includes a bottom surface 51 that presses against the bottom wall of the receiving groove 21 and an elastic wall 52 that extends upward from the bottom surface 51 and presses against the movable blade 4, forcing the movable blade 4 against the fixed blade 22. The bottom surface 51 abuts against the bottom wall of the receiving groove 21, making the elastic frame 5 more stable. The movable blade 4 is provided with a movable frame 42 that drives the movable blade 4. The movable frame 42 is equipped with a drive head 43 for receiving power. The drive head 43 receives power to swing back and forth, causing the movable frame 42 to move back and forth along the length of the receiving groove 21. The movable frame 42 is equipped with an intermediate blade holder 6 that moves with the movable frame 42. The intermediate blade holder 6 is equipped with an intermediate movable blade 7. The cutter head holder 3 is equipped with an intermediate blade net 8 that covers the intermediate movable blade 7 to shave body hair. The intermediate blade holder 6 and the intermediate blade net 8 are located between the two rows of fixed blades 22.

[0023] To facilitate the installation of the movable blade 4, movable blade insertion openings 23 are provided on both side walls of the fixed blade holder 2 below the fixed blade 22. The movable blade 4 is disposed within the inner receiving groove 21, and the movable blade 41 extends through the movable blade insertion openings 23. The movable blade insertion openings 23 position the movable blade 41, so that the movable blade 41 can only move along the length of the receiving groove 21, but cannot move up and down. The lower end of the fixed blade holder 2 is flat, and the upper end surface of the base 1 is a flat surface for the lower end of the fixed blade holder 2 to rest against. A plurality of positioning bosses 14 are provided on the upper end surface of the base 1, and a plurality of positioning holes 25 are provided on the lower end surface of the fixed blade holder 2 for the positioning bosses 14 to be inserted one by one.

[0024] In the preferred embodiment, the elastic frame 5 is U-shaped, with elastic walls 52 forming the two side walls of the U-shape. The two elastic walls 52 extend from bottom to top, creating a compressive elastic force. The elastic walls 52 press against the moving blade 4 through a circular transition, preventing scratches. Two elastic frames 5 are provided along the length of the accommodating slot 21, and their length is several times greater than the width of the U-shape, ensuring stable support.

[0025] To facilitate the installation of the movable frame 42, a mounting hole 24 is provided at the bottom end of the fixed blade holder 2, and a guide boss 11 is provided on the base 1, which extends from the mounting hole 24 into the receiving groove 21. The guide boss 11 is provided with a guide groove 12. One end of the movable frame 42 extends into the guide groove 12. The guide groove 12 extends along the length of the receiving groove 21. There are two guide bosses 11. When the movable frame 42 slides, it is guided by the guide groove 12, so that the movable frame 42 moves smoothly. A through hole 13 is provided in the middle of the base 1, and a drive head 43 is provided in the through hole 13. The movable frame 42 is snap-fitted with the drive head 43. The drive head 43 is provided with a power plug slot 44. The lower end of the movable frame 42 extends from the mounting hole 24, and the upper end of the drive head 43 extends from the mounting hole 24. The movable frame 42 and the drive head 43 are fastened together by two pairs of hooks.

[0026] To facilitate installation of the intermediate blade holder 6 and intermediate movable blade 7, a movable blade hole 45 is provided in the middle of the movable blade 4, and movable blades 41 are provided on opposite sides of the movable blade 4. The intermediate blade holder 6 and the intermediate movable blade 7 are disposed within the movable blade hole 45. The intermediate blade holder 6 is provided with a plurality of insertion holes 60, and the movable frame 42 is provided with a plurality of inserts 40 that are inserted into the insertion holes 60 one by one, thereby clamping the intermediate blade holder 6 within the movable frame 42. The middle movable blade 7 is in an inverted U-shape, and the middle blade holder 6 is arranged in the inverted U-shaped opening. The side walls of the middle movable blade 7 are provided with multiple buckle holes 71 and slots 72 with downward openings. The side walls of the middle blade holder 6 are provided with buckle platforms 63 that can buckle into the buckle holes 71 and insert platforms 64 that are inserted into the slots 72. The buckle platforms 63 have inclined guide surfaces to facilitate the buckle platforms 63 sliding into the buckle holes 71. The lower end of the middle blade holder 6 is provided with an elastic member groove 61 with a downward opening. One end of the elastic member groove 61 is pressed against a spring 62 on the movable frame 42, so that the middle movable blade 7 is squeezed downward, improving safety. The lower ends of the left and right sides of the cutter head frame 3 are provided with buckle hooks 31 that are snapped onto the fixed blade holder 2. One end of the cutter head frame 3 presses against the opening edge of the accommodating groove 21 and covers the opening of the accommodating groove 21.

[0027] In order to facilitate the installation and use of the cutter head frame 3, two relatively spaced positioning protrusions 32 are respectively provided on the left and right sides of the cutter head frame 3. A mounting frame 9 is relatively rotatably plugged into the cutter head frame 3. An insertion shaft 91 is respectively provided at the left and right ends of the mounting frame 9. The left and right insertion shafts 91 are respectively inserted from the left and right ends of the cutter head frame 3. A torsion spring 10 is provided on the insertion shaft 91. The torsion spring 10 is respectively pressed against the two positioning protrusions 32, and the cutter head frame 3 can swing around the insertion shaft 91.

Claims

1. A shaver head with stable operation, comprising a base (1), wherein a fixed blade holder (2) is arranged on the base (1), and characterized in that: The fixed knife holder (2) is provided with a receiving groove (21) with an upper end opening, the fixed knife holder (2) is provided with fixed knives (22) on both sides of the opening of the receiving groove (21), the fixed knife holder (2) is provided with a cutter head holder (3), the fixed knife holder (2) is provided with a movable blade (4) which can be relatively moved, and movable knives (41) corresponding to the fixed knife (22) are respectively provided at both ends of the movable blade (4), the fixed knife (22) is pressed against the upper end of the movable blade (4), and an elastic frame (5) is provided in the receiving groove (21), and the elastic frame (5) includes a bottom wall pressed against the bottom wall of the receiving groove (21). The movable blade (4) is provided with a movable frame (42) which can drive the movable blade (4) to move, the movable frame (42) is provided with a driving head (43) for receiving power, the movable frame (42) is provided with an intermediate blade frame (6) which moves with the movable frame (42), the intermediate blade frame (6) is provided with an intermediate movable blade (7), and the blade head frame (3) is provided with an intermediate blade net (8) which covers the intermediate movable blade (7).

2. A smooth-running shaver head according to claim 1, characterized in that: The fixed knife holder (2) is U-shaped, the fixed knife (22) is arranged at the two end edges of the U-shaped opening and is arranged horizontally, the two side walls of the fixed knife holder (2) are provided with a movable knife insertion opening (23) below the fixed knife (22), the movable knife blade (4) is arranged in the inner groove (21), and the movable knife (41) passes through the movable knife insertion opening (23).

3. A smooth-running shaver head according to claim 1, characterized in that: The elastic frame (5) is U-shaped, and the elastic wall (52) is the two side walls of the U-shape. The two elastic walls (52) are relatively open from bottom to top.

4. A smooth-running shaver head according to claim 3, characterized in that: The elastic wall (52) presses the movable blade (4) through an arc transition, and two elastic frames (5) are provided along the length direction of the accommodating groove (21). The length of the elastic frame (5) is several times greater than the width of the U-shape of the elastic frame (5).

5. A smooth-running shaver head according to claim 1, characterized in that: The bottom end of the fixed blade holder (2) is provided with a mounting hole (24), the base (1) is provided with a guide boss (11) extending from the mounting hole (24) into the receiving groove (21), the guide boss (11) is provided with a guide groove (12), and one end of the movable frame (42) extends into the guide groove (12).

6. A smooth-running shaver head according to claim 5, characterized in that: A through hole (13) is provided in the middle of the base (1), the driving head (43) is arranged in the through hole (13), the moving frame (42) is buckled with the driving head (43), and a power plug slot (44) is provided on the driving head (43).

7. A smooth-running shaver head according to claim 1, characterized in that: The movable blade (4) is provided with a movable blade hole (45) in the middle part, the intermediate blade holder (6) and the intermediate movable blade (7) are arranged in the movable blade hole (45), the intermediate blade holder (6) is provided with a plurality of insertion holes (60), the movable frame (42) is provided with a plurality of inserting pieces (40) which are inserted into the insertion holes (60) one by one, the intermediate movable blade (7) is in an inverted U shape, the intermediate blade holder (6) is arranged in the inverted U-shaped opening, the side wall of the intermediate movable blade (7) is provided with a plurality of buckle holes (71) and a slot (72) with an opening facing downward, the side wall of the intermediate blade holder (6) is provided with a buckle platform (63) which can be buckled into the buckle hole (71) and an inserting platform (64) which is inserted into the slot (72), the lower end of the intermediate blade holder (6) is provided with an elastic member groove (61), one end of the elastic member groove (61) is pressed against a spring (62) on the movable frame (42).

8. A smooth-running shaver head according to claim 1, characterized in that: The lower end of the fixed knife holder (2) is a plane, the upper end surface of the base (1) is a plane for the lower end of the fixed knife holder (2) to abut against, a plurality of positioning bosses (14) are provided on the upper end surface of the base (1), a plurality of positioning holes (25) are provided on the lower end surface of the fixed knife holder (2) for the positioning bosses (14) to be inserted one by one, and a bottom surface (51) is provided.

9. A smooth-running shaver head according to claim 1, characterized in that: The lower ends of the left and right sides of the tool head frame (3) are provided with hooks (31) that are snapped onto the fixed tool frame (2), and one end of the tool head frame (3) is pressed against the opening edge of the accommodating groove (21) to cover the opening of the accommodating groove (21).

10. A smooth-running shaver head according to claim 1, characterized in that: The left and right sides of the cutter head frame (3) are respectively provided with two relatively spaced positioning protrusions (32); the cutter head frame (3) is relatively rotatably plugged with a mounting frame (9); the left and right ends of the mounting frame (9) are respectively provided with insertion shafts (91); the left and right insertion shafts (91) are respectively inserted from the left and right ends of the cutter head frame (3); the insertion shafts (91) are respectively provided with torsion springs (10); the torsion springs (10) are respectively pressed against the two positioning protrusions (32).

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