Shaver

Abstract

The shaver comprises a shell, a static knife, a movable knife, a static knife rest, a movable knife rest, a power source and a transmission mechanism, the static knife is installed on the static knife rest, the movable knife is installed on the movable knife rest, the static knife and the movable knife are always attached under the action of a spring, and the transmission mechanism is connected with the power source. The movable cutter and the static cutter can move relatively through a transmission mechanism to achieve the shearing action, an elastic frame and a spring which are located above the movable cutter frame are installed in the shell, the elastic frame is provided with an elastic piece, and the elastic piece is directly erected on the movable cutter frame or erected on the movable cutter frame under the action of the spring. By arranging the elastic frame and the spring, the movable knife of the movable knife rest can be tightly attached to the static knife of the static knife rest, the shearing effect is guaranteed, the movable knife rest rotates relative to the elastic frame, the spring cannot swing left and right, and the elastic frame can rotate relative to the elastic frame. And the service life of the spring mounting is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of shaving devices, in particular to a shaving device. Background Art

[0002] A shaver is an appliance that uses a motor to drive the relative motion of a moving blade and a stationary blade to shave hair or beards. It consists of a moving blade, a stationary blade, a moving blade holder, a stationary blade holder, a micro-motor, and a housing. It cuts hair or beards based on the shearing principle. To ensure effective shearing, a spring is typically used to hold the moving and stationary blades in contact. However, as the moving blade moves relative to the stationary blade, the end of the spring that contacts the moving blade will swing left and right. Over time, this can reduce the life of the spring or even cause it to detach. Utility Model Content

[0003] The purpose of the utility model is to provide a shaver in order to overcome the shortcomings and deficiencies of the prior art.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a shaver comprising a shell, a stationary blade, a movable blade, a stationary blade holder, a movable blade holder, a power source and a transmission mechanism, wherein the stationary blade is mounted on the stationary blade holder, and the movable blade is mounted on the movable blade holder, and the stationary blade and the movable blade always remain in contact with each other under the action of a spring, and the stationary blade and the movable blade are both provided with a number of corresponding blade edges, the transmission mechanism is connected to the power source, and the movable blade and the stationary blade can move relative to each other through the transmission mechanism to achieve a shearing action, an elastic frame and a spring located above the movable blade holder are installed in the shell, the elastic frame has a spring extending toward the movable blade holder, the spring is directly mounted on the movable blade holder or is mounted on the movable blade holder under the action of a spring, the two ends of the spring are respectively connected to the spring piece and the inner wall of the shell and the position of the spring is fixed, and the movable blade holder moves circumferentially relative to the spring piece.

[0005] As a preferred technical solution of the present invention, the spring piece is arc-shaped, and has a connecting end fixed in the shell and an abutting end mounted on the upper part of the movable tool holder, and the connecting end of the spring piece is higher than the abutting end.

[0006] As a preferred technical solution of the present invention, the outer side of the abutting end of the spring piece has a blocking piece extending upward and an abutting piece extending downward, and the spring piece is mounted on the upper part of the movable tool holder through the abutting piece.

[0007] As an optimal technical solution of the present invention, the shell includes an upper cover and a lower shell assembly assembled with each other, the inner wall of the lower shell assembly is provided with a support column located above the movable tool holder, and the inner wall of the upper cover is provided with a positioning column corresponding to the position of the support column, and the connecting end of the spring is clamped between the support column and the positioning column.

[0008] As a preferred technical solution of the present invention, the elastic frame further includes a connecting portion bent relative to the connecting end of the spring sheet and a connecting ring located above the connecting portion, wherein the connecting ring abuts against the inner top wall of the shell.

[0009] As an optimal technical solution of the present invention, there are several springs and they are arranged equidistantly around the connecting ring. The number of springs corresponds to the number of springs. A positioning portion is provided on the top wall of the shell. The upper end of the spring is sleeved on the positioning portion, and the lower end of the spring is placed on the abutting end of the spring.

[0010] As a preferred technical solution of the present invention, a positioning shaft that rotates relative to the movable tool holder in a circumferential direction is provided at the center of the upper portion of the movable tool holder, and the upper end of the positioning shaft is fixed or integrally formed on the inner top wall of the shell.

[0011] As an optimal technical solution of the present utility model, the transmission mechanism includes an eccentric piece, a swing piece, and a transmission shaft. A rotary groove is provided at the center of the upper part of the movable tool holder, and the lower end of the positioning shaft is inserted into the rotary groove. The swing piece is sleeved on the positioning shaft and the lower part of the swing part rotates with the rotary shaft. The eccentric piece and the transmission shaft are located on both sides of the swing piece. The lower end of the transmission shaft is inserted into the first movable groove of the movable tool holder, and the swing piece is provided with a second movable groove corresponding to the position of the eccentric piece. The eccentric piece is fixed to the top wall of the shell and the upper end of the eccentric piece is driven by a power source. The eccentric rod of the eccentric piece enters the second movable groove. When the eccentric piece rotates, the swing frame swings back and forth and drives the movable tool holder to rotate back and forth through the transmission shaft.

[0012] As a preferred technical solution of the present invention, the movable knife and the stationary knife are annular, the knife edges are evenly distributed on the inner circumference of the movable knife and the stationary knife, and the knife edges are located in the radial direction of the movable knife and the stationary knife.

[0013] As a preferred technical solution of the present invention, the movable knife holder and the stationary knife holder are both rotating bodies, the movable knife is fixed or integrally provided at the lower part of the movable knife holder, and the stationary knife is fixed or integrally provided at the lower part of the stationary knife holder. The movable knife holder is squeezed toward the stationary knife holder under the action of the elastic frame and the spring so that the movable knife is always close to the stationary knife, and the movable knife and the stationary knife are located at the opening below the shell.

[0014] To sum up, the beneficial effects of the present invention are as follows: the combination of the elastic frame and the spring can make the movable knife of the movable knife holder close to the static knife of the static knife holder, ensuring the shearing effect, and the movable knife holder rotates relative to the elastic frame, and the spring does not directly contact the movable knife holder, so it will not cause the spring to swing left and right, thereby improving the stability of the spring installation and the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the bottom structure of the utility model;

[0017] Figure 3 It is a top view of the utility model;

[0018] Figure 4 It is a cross-sectional view of AA of the present utility model;

[0019] Figure 5 It is a cross-sectional view of the utility model BB;

[0020] Figure 6 This is a structural diagram of the utility model without the upper cover;

[0021] Figure 7 This is a schematic diagram of the structure of the movable tool holder and the transmission mechanism in the utility model;

[0022] Figure 8 This is a schematic diagram of the structure of the static tool holder and the static tool in the utility model;

[0023] Figure 9 This is a schematic diagram of the structure of the elastic frame and spring in the utility model;

[0024] Figure 10 It is a structural diagram of the elastic frame in the utility model.

[0025] Figure numerals: 1. shell; 11. upper cover; 111. positioning column; 112. positioning part; 12. lower shell assembly; 121. upper shell; 1211. support column; 122. lower shell; 1221. tooth part; 2. static knife holder; 21. static knife; 3. movable knife holder; 31. movable knife; 32. rotating groove; 33. first movable groove; 4. transmission mechanism; 41. positioning shaft; 42. eccentric member; 421. eccentric rod; 43. swing member; 431. second movable groove; 44. transmission shaft; 45. bearing; 5. elastic frame; 51. spring; 511. connecting end; 512. abutting end; 5121. blocking piece; 5122. abutting piece; 52. connecting part; 53. connecting ring; 6. spring; 7. knife edge. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments and drawings. However, the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0027] The specific embodiments of the present utility model are described below with reference to the accompanying drawings.

[0028] like Figures 1 to 10 The shaver shown in the figure includes a housing 1, a stationary knife 21, a movable knife 31, a stationary knife holder 2, a movable knife holder 3, a power source (not shown in the figure) and a transmission mechanism 4. The stationary knife 21 is mounted on the stationary knife holder 2, and the movable knife 31 is mounted on the movable knife holder 3. The stationary knife 21 and the movable knife 31 always keep in contact with each other under the action of the spring 6. The stationary knife 21 and the movable knife 31 are provided with a plurality of corresponding blades 7. The transmission mechanism 4 is connected to the power source, and the movable knife 31 and the stationary knife 21 can move relative to each other through the transmission mechanism 4 to achieve a shearing action. An elastic frame 5 and a spring 6 are installed above the movable knife holder 3 in the housing 1. The elastic frame 5 has a spring plate 51 extending toward the movable blade holder 3. The spring plate 51 is directly mounted on the movable blade holder 3 or mounted on the movable blade holder 3 under the action of a spring 6. The two ends of the spring 6 are respectively connected to the spring plate 51 and the inner wall of the housing 1, and the position of the spring 6 is fixed. The movable blade holder 3 moves circumferentially relative to the spring plate 51. In this embodiment, there is a gap between the outer wall of the movable blade holder 3 and the inner wall of the stationary blade holder 2. This is a preferred embodiment to ensure that the movable blade holder 3 does not contact the stationary blade holder 2 during rotation, thereby reducing friction and making the movable blade holder 3 rotate more smoothly. The shaver of the present application can be used as a bald shear, a razor, or a hair clipper, depending on the user's needs.

[0029] Working principle: The combination of the elastic frame 5 and the spring 6 can make the movable knife 31 of the movable knife holder 3 close to the static knife 21 of the static knife holder 2, ensuring the shearing effect, and the movable knife holder 3 rotates relative to the elastic frame 5. The spring 6 does not directly contact the movable knife holder 3, so it will not cause the spring 6 to swing left and right, thereby improving the stability of the installation of the spring 6 and the service life.

[0030] The spring piece 51 is arc-shaped and has a connecting end 511 fixed in the shell 1 and an abutting end 512 mounted on the upper part of the movable tool holder 3. The connecting end 511 of the spring piece 51 is higher than the abutting end 512. The abutting end 512 directly acts on the movable tool holder 3 by utilizing the curvature of the spring piece 51 itself, or abuts against the movable tool holder 3 by utilizing the curvature of the spring piece 51 itself and the elastic force of the spring 6.

[0031] The outer side of the abutting end 512 of the spring piece 51 has a blocking piece 5121 extending upward and an abutting piece 5122 extending downward. The spring piece 51 is mounted on the upper part of the movable tool holder 3 through the abutting piece 5122 .

[0032] The shell 1 includes an upper cover 11 and a lower shell assembly 12 assembled with each other. The inner wall of the lower shell assembly 12 is provided with a support column 1211 located above the movable tool holder 3. The inner wall of the upper cover 11 is provided with a positioning column 111 corresponding to the support column 1211. The connecting end 511 of the spring 51 is clamped between the support column 1211 and the positioning column 111. The lower shell assembly 12 in this embodiment includes an upper shell part 121 and a lower shell part 122 assembled with it. The lower end of the lower shell part 122 is provided with an opening and the inner circumference of the opening is spaced apart with a plurality of teeth 1221. After the upper shell part 121 and the lower shell part 122 are assembled, the static tool holder 2 is limited to be located between the two.

[0033] The elastic frame 5 also includes a connecting portion 52 bent relative to the connecting end 511 of the elastic sheet 51 and a connecting ring 53 located above the connecting portion 52. The connecting ring 53 abuts against the inner top wall of the shell 1. The elastic sheets 51 are provided with several and are arranged equidistantly around the connecting ring 53. Several elastic sheets 51 are arranged clockwise or counterclockwise on the connecting ring 53 in the same direction. The number of springs 6 corresponds to the number of elastic sheets 51. A positioning portion 112 is provided on the inner top wall of the shell 1. The upper end of the spring 6 is sleeved on the positioning portion 112, and the lower end of the spring 6 is placed on the abutting end 512 of the elastic sheet 51. When installing the elastic frame 5, the connecting end 511 of each elastic sheet 51 is aligned with the support column 1211 and placed. After the upper cover 11 and the lower shell assembly 12 are assembled, the elastic frame 5 can be fixed.

[0034] A positioning shaft 41 is provided at the center of the upper portion of the movable tool holder 3 and is rotatable relative to the movable tool holder 3 in the circumferential direction. The upper end of the positioning shaft 41 is fixed to or integrally formed on the top wall of the housing 1 .

[0035] The transmission mechanism 4 includes an eccentric member 42, a swing member 43, and a transmission shaft 44. A rotary groove 32 is provided at the center of the upper portion of the movable tool holder 3. The lower end of the positioning shaft 41 is inserted into the rotary groove 32. The swing member 43 is sleeved on the positioning shaft 41 and the lower portion of the swing portion rotates with the rotary shaft. The swing member 43 rotates circumferentially relative to the positioning shaft 41. A bearing 45 is provided between the swing member 43 and the positioning shaft 41. The eccentric member 42 and the transmission shaft 44 are located on both sides of the swing member 43. The lower end of the transmission shaft 44 is inserted into the first end of the movable tool holder 3. In the movable groove 33, a second movable groove 431 is provided on the swinging member 43 at a position corresponding to the eccentric member 42. The eccentric member 42 is fixed to the inner top wall of the shell 1 and the upper end of the eccentric member 42 is driven by a power source. The eccentric rod 421 of the eccentric member 42 enters the second movable groove 431. When the eccentric member 42 rotates, the swinging frame swings back and forth and drives the movable tool holder 3 to rotate back and forth through the transmission shaft 44. In this embodiment, the first movable groove 33 and the second movable groove 431 are preferably oblong holes, and can also be rectangular or geometric shapes.

[0036] The power source drives the eccentric member 42 to rotate, and the eccentric rod 421 of the eccentric member 42 moves in the second movable groove 431, causing the swinging member 43 to swing back and forth. The transmission shaft 44 at the other end of the swinging member 43 is limited in the first movable groove 33, thereby causing the movable knife holder 3 to rotate back and forth, and the movable knife 31 and the blade 7 of the static knife 21 are misaligned to achieve a shearing action. Of course, the power source can also directly drive the movable knife holder 3 to rotate, so that the movable knife 31 of the movable knife holder 3 rotates continuously. In this embodiment, the power source is preferably a motor, and the power source is fixed to the upper cover 11.

[0037] The movable blade 31 and the stationary blade 21 are annular, and the blade edges 7 are evenly distributed on the inner peripheries of the movable blade 31 and the stationary blade 21 , respectively. The blade edges 7 are located in the radial direction of the movable blade 31 and the stationary blade 21 , respectively.

[0038] The movable knife holder 3 and the stationary knife holder 2 are both rotating bodies. The movable knife 31 is fixed or integrated at the lower part of the movable knife holder 3, and the stationary knife 21 is fixed or integrated at the lower part of the stationary knife holder 2. The movable knife holder 3 is squeezed toward the stationary knife holder 2 under the action of the elastic holder 5 and the spring 6 so that the movable knife 31 is always in close contact with the stationary knife 21. The movable knife 31 and the stationary knife 21 are located at the lower opening of the shell 1.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention as claimed, and the scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A shaver, comprising a housing (1), a stationary blade (21), a movable blade (31), a stationary blade holder (2), a movable blade holder (3), a power source and a transmission mechanism (4), wherein the stationary blade (21) is mounted on the stationary blade holder (2), and the movable blade (31) is mounted on the movable blade holder (3), wherein the stationary blade (21) and the movable blade (31) are always kept in contact with each other under the action of a spring (6), and the stationary blade (21) and the movable blade (31) are each provided with a plurality of corresponding blade edges (7), and the transmission mechanism (4) is connected to the power source, and the movable blade (31) and the stationary blade (21) can move relative to each other through the transmission mechanism (4) to achieve a shearing action, characterized in that: An elastic frame (5) and a spring (6) located above the movable blade holder (3) are installed in the housing (1); the elastic frame (5) has a spring sheet (51) extending in the direction of the movable blade holder (3); the spring sheet (51) is directly mounted on the movable blade holder (3) or is mounted on the movable blade holder (3) under the action of the spring (6); the two ends of the spring (6) are respectively connected to the spring sheet (51) and the inner wall of the housing (1); the position of the spring (6) is fixed; and the movable blade holder (3) moves circumferentially relative to the spring sheet (51).

2. The shaver according to claim 1, characterized in that: The spring piece (51) is arc-shaped and has a connecting end (511) fixed in the housing (1) and an abutting end (512) mounted on the upper part of the movable tool holder (3). The connecting end (511) of the spring piece (51) is located higher than the abutting end (512).

3. The shaver according to claim 2, characterized in that: The outer side of the abutting end (512) of the spring piece (51) has a blocking piece (5121) extending upward and an abutting piece (5122) extending downward, and the spring piece (51) is mounted on the upper part of the movable tool holder (3) through the abutting piece (5122).

4. The shaver according to claim 2, characterized in that: The housing (1) comprises an upper cover (11) and a lower shell assembly (12) assembled with each other; a support column (1211) located above the movable tool holder (3) is provided on the inner wall of the lower shell assembly (12); a positioning column (111) is provided on the inner wall of the upper cover (11) at a position corresponding to the support column (1211); and the connecting end (511) of the spring (51) is clamped between the support column (1211) and the positioning column (111).

5. The shaver according to any one of claims 2 to 4, characterized in that: The elastic frame (5) further comprises a connecting portion (52) bent relative to the connecting end (511) of the elastic sheet (51) and a connecting ring (53) located above the connecting portion (52), wherein the connecting ring (53) abuts against the inner top wall of the housing (1).

6. The shaver according to claim 5, characterized in that: The springs (51) are provided with a plurality of springs (51) and are arranged equidistantly around the connecting ring (53). The number of the springs (6) corresponds to the number of the springs (51). The inner top wall of the housing (1) is provided with a positioning portion (112). The upper end of the spring (6) is sleeved on the positioning portion (112), and the lower end of the spring (6) is placed on the abutting end (512) of the spring (51).

7. The shaver according to claim 1, characterized in that: A positioning shaft (41) is provided at the center of the upper portion of the movable tool holder (3) and is circumferentially rotatable relative to the movable tool holder (3). The upper end of the positioning shaft (41) is fixed to or integrally formed on the inner top wall of the housing (1).

8. The shaver according to claim 7, characterized in that: The transmission mechanism (4) includes an eccentric member (42), a swing member (43), and a transmission shaft (44). A rotary groove (32) is provided at the center of the upper portion of the movable knife holder (3). The lower end of the positioning shaft (41) is inserted into the rotary groove (32). The swing member (43) is sleeved on the positioning shaft (41) and the lower portion of the swing member rotates with the rotary shaft. The eccentric member (42) and the transmission shaft (44) are located on both sides of the swing member (43). The lower end of the transmission shaft (44) is inserted into the movable knife holder (3). In the first movable groove (33) of the frame (3), the swinging member (43) is provided with a second movable groove (431) corresponding to the position of the eccentric member (42); the eccentric member (42) is fixed to the inner top wall of the shell (1) and the upper end of the eccentric member (42) is driven by a power source; the eccentric rod (421) of the eccentric member (42) enters the second movable groove (431); when the eccentric member (42) rotates, the swinging frame swings back and forth and drives the movable tool holder (3) to rotate back and forth through the transmission shaft (44).

9. The shaver according to claim 1, characterized in that: The movable knife (31) and the stationary knife (21) are annular, the knife edges (7) are evenly distributed on the inner peripheries of the movable knife (31) and the stationary knife (21), and the knife edges (7) are located in the radial directions of the movable knife (31) and the stationary knife (21).

10. The shaver according to claim 9, characterized in that: The movable knife holder (3) and the stationary knife holder (2) are both rotating bodies. The movable knife (31) is fixed or integrally provided at the lower part of the movable knife holder (3), and the stationary knife (21) is fixed or integrally provided at the lower part of the stationary knife holder (2). Under the action of the elastic holder (5) and the spring (6), the movable knife holder (3) is pressed toward the stationary knife holder (2) so that the movable knife (31) is always in close contact with the stationary knife (21). The movable knife (31) and the stationary knife (21) are located at the lower opening of the housing (1).

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