Simple tool bit rotating structure and manual shaver

Abstract

The simple tool bit rotating structure comprises a tool frame, an installation portion and an elastic piece, the tool frame is connected with the installation portion in a hinged mode, the elastic piece is connected between the tool frame and the installation portion, and the tool bit rotating structure is arranged on the installation portion. And the rotating force of the cutter frame relative to the mounting part is adjusted by selecting the elastic pieces with different rotating forces. According to the shaver, the elastic piece is directly arranged between the shaver frame and the mounting part, the rotating force of the shaver frame relative to the mounting part can be adjusted only by utilizing the elastic piece, and the number of parts is reduced, so that the matching among the parts is reduced, the structural design is simplified, and the manufacturing cost of the shaver is reduced; in addition, the adjusting process of the rotating force of the shaver head is greatly simplified, adjustment can be completed only by replacing the elastic piece, operation is simple and clear, and using convenience and experience feeling are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hair trimmers, in particular to a simple cutter head rotating structure and a manual shaver. Background Art

[0002] The manual shavers currently widely used on the market have a relatively complex structure when it comes to realizing the blade rotation function. To achieve this function, a combination of multiple parts is usually required, and the adjustment of the rotation force also requires the cooperation of multiple parts, which not only increases the complexity of the structure, but also makes the operation less convenient. Utility Model Content

[0003] In order to solve at least one aspect of the above problems, the utility model first provides a simple cutter head rotation structure, including a cutter frame, a mounting portion and an elastic member, the number of the elastic members is one or more, the cutter frame and the mounting portion are hingedly connected to each other, the elastic member is connected between the cutter frame and the mounting portion, and the rotational force of the cutter frame relative to the mounting portion is adjusted by selecting the elastic members with different rotational forces.

[0004] Optionally, the lower end of the knife frame is provided with two first hinge blocks and second hinge blocks which are spaced apart from each other on the left and right sides, and the left and right sides of the mounting portion are respectively provided with a first rotation limit groove and a second rotation limit groove, the first hinge block is hingedly connected to the first rotation limit groove, and the second hinge block is hingedly connected to the second rotation limit groove.

[0005] Optionally, the elastic member is a parallel double torsion spring, which includes a first torsion spring, a second torsion spring and a connecting rod, the first torsion spring and the second torsion spring are connected to each other through the connecting rod, the first hinge block is provided with a first mounting bin for placing the first torsion spring, the second hinge block is provided with a second mounting bin for placing the second torsion spring, two ends of the first torsion spring are respectively abutted against the first mounting bin and the first rotation limiting groove, and two ends of the second torsion spring are respectively abutted against the second mounting bin and the second rotation limiting groove.

[0006] Optionally, it further includes a rotating shaft, which passes through the first hinge block, the first torsion spring, the mounting portion, the second torsion spring and the second hinge block.

[0007] Optionally, the first rotation limit groove and the second rotation limit groove are symmetrically arranged with each other, and in an initial state, the front side surface of the first hinge block abuts against the front inner wall of the first rotation limit groove, and the front side surface of the second hinge block abuts against the front inner wall of the second rotation limit groove, and when the knife frame swings backward to a maximum angle during shaving, the rear side surface of the first hinge block abuts against the rear inner wall of the first rotation limit groove, and the rear side surface of the second hinge block abuts against the rear inner wall of the second rotation limit groove.

[0008] Optionally, a handle is further included, and the handle is integrally formed with the mounting portion; the elastic member is detachably connected between the knife frame and the mounting portion, so that the elastic member with different rotational forces can be replaced to adjust the rotational force of the knife frame relative to the mounting portion.

[0009] Optionally, the knife frame is installed with a blade assembly, and the blade assembly has a cutting surface, and the cutting surface is located on the front side of the knife frame.

[0010] Optionally, the blade assembly includes a plurality of blades spaced apart from each other vertically, a cutting edge is provided at the lower end of each blade, and all the cutting edges form the cutting surface.

[0011] Optionally, a guide surface is provided at the front lower end of the knife frame.

[0012] Compared with the prior art, the simple cutter head rotation structure in the utility model directly sets an elastic part between the cutter frame and the mounting part. The rotation force of the cutter frame relative to the mounting part can be adjusted by only using the elastic part, which reduces the number of parts and thus reduces the coordination between the various parts, simplifies the structural design, and reduces the manufacturing cost of the razor. It also greatly simplifies the adjustment process of the rotation force of the cutter head of the razor. The adjustment can be completed by simply replacing the elastic part. The operation is simple and clear, which improves the convenience and experience of use.

[0013] In addition, the utility model provides a manual shaver, comprising the simple cutter head rotating structure as described above.

[0014] Compared with the prior art, the manual shaver described in the present invention has the same advantages as the above-mentioned simple blade rotating structure over the prior art, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a simple cutter head rotating structure according to an embodiment of the utility model;

[0016] Figure 2 A cross-sectional view of a simple cutter head rotating structure according to an embodiment of the utility model;

[0017] Figure 3This is a structural diagram of an elastic member of an embodiment of the utility model installed on a knife frame;

[0018] Figure 4 This is a structural diagram of an elastic member installed on a mounting portion according to an embodiment of the utility model.

[0019] Description of reference numerals:

[0020] 1. Blade frame; 11. First hinge block; 111. First mounting compartment; 12. Second hinge block; 121. Second mounting compartment; 13. Guide surface; 2. Mounting portion; 21. First rotation limit groove; 22. Second rotation limit groove; 3. Elastic member; 31. First torsion spring; 32. Second torsion spring; 33. Connecting rod; 4. Rotating axis; 5. Handle; 6. Blade assembly; 61. Cutting surface; 62. Blade; 621. Cutting edge. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0022] In the description of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate positions or location relationships that are based on the positions or location relationships when the product is in normal use.

[0023] The terms "first" and "second" are used only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. The drawings of the embodiments of the present utility model are provided with a coordinate system XYZ, wherein the positive direction of the X-axis represents the left, the reverse direction of the X-axis represents the right, the positive direction of the Y-axis represents the front, the reverse direction of the Y-axis represents the back, the positive direction of the Z-axis represents the top, and the reverse direction of the Z-axis represents the bottom.

[0024] The utility model provides a simple cutter head rotating structure, combined with Figures 1 to 4 As shown, it includes a knife frame 1, a mounting portion 2 and an elastic member 3, the number of the elastic member 3 is one or more, the knife frame 1 and the mounting portion 2 are hingedly connected to each other, the elastic member 3 is connected between the knife frame 1 and the mounting portion 2, and the rotational force of the knife frame 1 relative to the mounting portion 2 is adjusted by selecting the elastic member 3 with different rotational forces.

[0025] The elastic member 3 can be detachably connected between the knife frame 1 and the mounting portion 2, so that the user can replace the elastic member 3 with different rotational forces to adjust the rotational force of the knife frame 1 relative to the mounting portion 2 to meet his own comfort; the elastic member 3 can also be non-detachably connected between the knife frame 1 and the mounting portion 2. During production and manufacturing, the rotational force of the knife frame 1 relative to the mounting portion 2 can be determined according to the needs of different customers, and the elastic member 3 with the corresponding rotational force can be assembled according to the determined rotational force. After assembly, the elastic member 3 cannot be disassembled during normal use; the number of elastic members 3 can be one or more, and the specific number is selected according to design requirements; the elastic member 3 can be a torsion spring or a sheet metal member with elastic force.

[0026] Among them, the blade frame 1 and the mounting portion 2 are hingedly connected to achieve flexible rotation of the blade frame 1 relative to the mounting portion 2 during shaving. The hinge structure in this embodiment may adopt a pin or hinge design to ensure that the blade frame 1 can rotate smoothly around a fixed point while maintaining the accuracy of shaving. The design position and angle of the hinge point are precisely calculated to ensure that the rotation range of the blade frame 1 during use is moderate, which can effectively follow the facial contour without excessive rotation affecting the shaving effect; the elastic member 3 is fixed between the blade frame 1 and the mounting portion 2 by means of a pin, a slot, etc., so that it can be easily disassembled and assembled, and elastic members 3 of different specifications can be quickly replaced as needed to adjust the rotation force of the blade frame 1.

[0027] The simple cutter head rotation structure in the present embodiment directly sets an elastic member 3 between the cutter frame 1 and the mounting portion 2. The rotation force of the cutter frame 1 relative to the mounting portion 2 can be adjusted by using only the elastic member 3, which reduces the number of parts and thus reduces the coordination between the various parts, simplifies the structural design, and reduces the manufacturing cost of the razor. It also greatly simplifies the adjustment process of the rotation force of the cutter head of the razor. The adjustment can be completed by simply replacing the elastic member 3. The operation is simple and clear, which improves the convenience and experience of use.

[0028] Optionally, combined Figure 1 , Figure 3As shown, the lower end of the blade frame 1 is provided with two first hinge blocks 11 and second hinge blocks 12 which are spaced apart from each other. The left and right sides of the mounting portion 2 are provided with first rotation limiting grooves 21 and second rotation limiting grooves 22 respectively. The first hinge block 11 is hingedly connected to the first rotation limiting grooves 21, and the second hinge block 12 is hingedly connected to the second rotation limiting grooves 22. The convex design of the hinge block facilitates the hinge connection with the rotation limiting grooves of the mounting portion 2, ensuring that the blade frame 1 can rotate reliably during use, and the structure is more compact; the rotation limiting grooves can effectively limit the rotation range of the blade frame 1, prevent excessive rotation, and provide a more accurate and safe shaving experience; the above two sets of hinge structures ensure that the blade frame 1 can be balanced when shaving, reducing the shaking or instability caused by the single-point hinge, thereby improving the accuracy and comfort of shaving.

[0029] Optionally, combined Figures 1 to 4 As shown, the elastic member 3 is a parallel double torsion spring, which includes a first torsion spring 31, a second torsion spring 32 and a connecting rod 33. The first torsion spring 31 and the second torsion spring 32 are connected to each other through the connecting rod 33. The first hinge block 11 is provided with a first mounting bin 111 for placing the first torsion spring 31, and the second hinge block 12 is provided with a second mounting bin 121 for placing the second torsion spring 32. The two ends of the first torsion spring 31 are respectively abutted against the first mounting bin 111 and the first rotation limiting groove 21, and the two ends of the second torsion spring 32 are respectively abutted against the second mounting bin 121 and the second rotation limiting groove 22, to help control the rotation force and angle of the knife frame 1.

[0030] Among them, the parallel double torsion spring provides double elastic support, so that the knife frame 1 has a more balanced torque distribution when rotating, enhances the stability of the knife head rotation, and makes the rotation synchronization of the two sets of hinged structures better, and the number of parts is minimized, which improves the efficiency of replacing the elastic member 3; the two installation bins are designed as a storage space that matches the size of the torsion spring, ensuring that the torsion spring is firmly fixed in the installation bin and will not be separated or shifted due to vibration during use. In addition, the elastic member 3 can also be composed of two independent single torsion springs.

[0031] Optionally, combined Figures 1 to 4As shown, it also includes a rotating shaft 4, which is inserted into the first hinge block 11, the first torsion spring 31, the mounting portion 2, the second torsion spring 32 and the second hinge block 12. The rotating shaft 4 not only plays a connecting role between these components, but also provides support and guidance when the knife frame 1 rotates, ensuring the coordinated movement of the various components to avoid misalignment or asynchronism; the parallel double torsion springs are first placed in the mounting compartment of the knife frame 1, and then the hinged portion of the knife frame 1 is assembled into the rotation limit groove of the mounting portion 2, and then the knife frame 1 and the mounting portion 2 are fixed together by the rotating shaft 4, and the assembly is completed. The entire structure is more integrated and simplified, and the complex assembly steps are reduced.

[0032] Optionally, combined Figure 4 As shown, the first rotation limit groove 21 and the second rotation limit groove 22 are symmetrically arranged with each other, ensuring that the cutter frame 1 can maintain balance during rotation, so that the hinge blocks on both sides are evenly stressed, ensuring the comfort and accuracy of shaving; in the initial state, the front side surface of the first hinge block 11 abuts against the front inner wall of the first rotation limit groove 21, and the front side surface of the second hinge block 12 abuts against the front inner wall of the second rotation limit groove 22, preventing unnecessary shaking of the cutter head when not in use; when shaving, when the cutter frame 1 swings backward to the maximum angle, the rear side surface of the first hinge block 11 abuts against the rear inner wall of the first rotation limit groove 21, and the rear side surface of the second hinge block 12 abuts against the rear inner wall of the second rotation limit groove 22, limiting the further swing of the cutter frame 1 and preventing it from excessive rotation; the angle of the rotation limit groove can be designed according to the rotation angle requirement of the cutter head.

[0033] Optionally, combined Figure 1 , Figure 2 As shown, it also includes a handle 5, and the handle 5 is integrally formed with the mounting portion 2, that is, the handle 5 and the mounting portion 2 are made of the same material and are formed at one time during the manufacturing process, saving assembly steps; the mounting portion 2 is preferably arranged at the upper end of the handle 5 to make the structure more compact.

[0034] Optionally, combined Figure 1 , Figure 2 As shown, the blade frame 1 is installed with a blade assembly 6 for cutting hair, and the blade assembly 6 has a cutting surface 61, and the cutting surface 61 is located on the front side of the blade frame 1, ensuring that when the shaver is in use, the cutting surface 61 can directly contact the skin or hair to achieve the best shaving effect; the blade assembly 6 can be tightly connected to the blade frame 1 by a buckle, screw or embedded design to ensure that it will not loosen or fall off during shaving.

[0035] Optionally, combined Figure 1 , Figure 2As shown, the blade assembly 6 includes a plurality of blades 62 arranged at intervals up and down, and a cutting edge 621 is provided at the lower end of each blade 62, and all the cutting edges 621 form the cutting surface 61. The design of the plurality of blades 62 enables the blade assembly 6 to provide the function of multiple cutting edges 621 during the shaving process, thereby improving the shaving effect; the blades 62 in the blade assembly 6 are arranged at intervals up and down, thereby ensuring that the blades 62 do not interfere with each other, thereby providing a better shaving effect, enabling the cutting edge 621 of each blade 62 to work independently, while also reducing the accumulation of hair and improving the shaving efficiency.

[0036] Optionally, combined Figure 1 , Figure 2 As shown, a guide surface 13 is provided at the lower front end of the blade frame 1; the guide surface 13 is preferably a curved surface, which guides the blade assembly 6 to contact the skin at a correct angle when in use, with a smooth transition, thereby optimizing the comfort and efficiency of shaving.

[0037] Another embodiment of the utility model provides a manual shaver, comprising the simple cutter head rotating structure as described above.

[0038] In the manual shaver of the present embodiment, an elastic member 3 is directly arranged between the blade frame 1 and the mounting portion 2. The rotation force of the blade frame 1 relative to the mounting portion 2 can be adjusted by only using the elastic member 3, thereby reducing the number of parts and thus reducing the coordination between the various parts, simplifying the structural design, and reducing the manufacturing cost of the shaver; it also greatly simplifies the process of adjusting the rotation force of the shaver head, and the adjustment can be completed by only replacing the elastic member 3. The operation is simple and clear, and the convenience and experience of use are improved.

[0039] Although the disclosure is as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A simple cutter head rotating structure, characterized in that: The invention comprises a knife frame (1), a mounting portion (2) and an elastic member (3), wherein the number of the elastic member (3) is one or more, the knife frame (1) and the mounting portion (2) are hingedly connected to each other, the elastic member (3) is connected between the knife frame (1) and the mounting portion (2), and the rotational force of the knife frame (1) relative to the mounting portion (2) is adjusted by selecting the elastic member (3) with different rotational forces.

2. The simple cutter head rotating structure according to claim 1, characterized in that: The lower end of the knife frame (1) is provided with two first hinge blocks (11) and a second hinge block (12) which are spaced apart from each other on the left and right sides and protrude downwards; the left and right sides of the mounting portion (2) are provided with a first rotation limiting groove (21) and a second rotation limiting groove (22) respectively; the first hinge block (11) is hingedly connected to the first rotation limiting groove (21), and the second hinge block (12) is hingedly connected to the second rotation limiting groove (22).

3. The simple cutter head rotating structure according to claim 2, characterized in that: The elastic member (3) is a parallel double torsion spring, comprising a first torsion spring (31), a second torsion spring (32) and a connecting rod (33); the first torsion spring (31) and the second torsion spring (32) are connected to each other via the connecting rod (33); the first hinge block (11) is provided with a first mounting bin (111) for placing the first torsion spring (31); the second hinge block (12) is provided with a second mounting bin (121) for placing the second torsion spring (32); two ends of the first torsion spring (31) are respectively in contact with the first mounting bin (111) and the first rotation limiting groove (21); and two ends of the second torsion spring (32) are respectively in contact with the second mounting bin (121) and the second rotation limiting groove (22).

4. The simple cutter head rotating structure according to claim 3, characterized in that: It also comprises a rotating shaft (4), wherein the rotating shaft (4) passes through the first hinge block (11), the first torsion spring (31), the mounting portion (2), the second torsion spring (32) and the second hinge block (12).

5. The simple cutter head rotating structure according to claim 2, characterized in that: The first rotation limiting groove (21) and the second rotation limiting groove (22) are arranged symmetrically with each other. In an initial state, the front side surface of the first hinge block (11) abuts against the front inner wall of the first rotation limiting groove (21), and the front side surface of the second hinge block (12) abuts against the front inner wall of the second rotation limiting groove (22). When the blade frame (1) swings backward to a maximum angle during shaving, the rear side surface of the first hinge block (11) abuts against the rear inner wall of the first rotation limiting groove (21), and the rear side surface of the second hinge block (12) abuts against the rear inner wall of the second rotation limiting groove (22).

6. The simple cutter head rotating structure according to claim 1, characterized in that: The knife blade further comprises a handle (5), wherein the handle (5) is integrally formed with the mounting portion (2); the elastic member (3) is detachably connected between the knife frame (1) and the mounting portion (2), so that the elastic member (3) with different rotational forces can be replaced to adjust the rotational force of the knife frame (1) relative to the mounting portion (2).

7. The simple cutter head rotating structure according to any one of claims 1 to 6, characterized in that: The blade frame (1) is installed with a blade assembly (6), and the blade assembly (6) has a cutting surface (61), and the cutting surface (61) is located on the front side of the blade frame (1).

8. The simple cutter head rotating structure according to claim 7, characterized in that: The blade assembly (6) comprises a plurality of blades (62) spaced apart from each other in an upper and lower direction, each blade (62) being provided with a cutting edge (621) at the lower end, and all the cutting edges (621) forming the cutting surface (61).

9. The simple cutter head rotating structure according to claim 7, characterized in that: A guide surface (13) is provided at the front lower end of the knife frame (1).

10. A manual shaver, characterized in that: It comprises a simple cutter head rotating structure as described in any one of claims 1 to 9.

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