Adjustable tool bit and hair clipper
By setting a limit piece and a limit groove on the side of the hair clipper's blade and using a rotating adjustment handle to drive the movable blade to slide, the problems of large blade thickness and poor switching feel in the existing technology are solved, the miniaturization of the blade and continuous gear adjustment are achieved, and the operating experience is improved.
Patent Information
- Application Number
- CN202422037840.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-08-21
AI Technical Summary
The adjustable cutter head limit slot of the existing hair clipper is located at the bottom of the cutter head, which makes the overall design thicker and not conducive to miniaturization. In addition, the limit slot is difficult to switch accurately and continuously when switching gears, and the switching feel is poor.
The limiting part and limiting groove are set on the side of the cutter head. The movable part of the movable blade is driven to slide in the side direction by rotating the adjustment handle. The wave groove and the gear spring are used to achieve continuous gear adjustment, which enhances the hand feel and reduces the size of the cutter head.
The overall thickness of the cutter head is reduced, the gear adjustment is more continuous, the hand feel is improved, and the cutter head structure is compact. A crisp sound is produced during the adjustment process, which increases the sense of rhythm.
Smart Images
Figure CN223354313U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric hair clippers, in particular to an adjustable cutter head and a hair clipper. Background Art
[0002] With the rapid development of the hairdressing market, sales of hair clippers have increased significantly, and users are increasingly demanding easy-to-use hair clippers. Existing hair clippers have adjustable blades with stop slots located at the bottom of the blade, making the overall design thicker and hindering overall miniaturization. Furthermore, the stop slots make it difficult to accurately and continuously switch between gears, resulting in a poor switching feel. Utility Model Content
[0003] Based on this, the purpose of the present invention is to provide an adjustable cutter head, which reduces the overall thickness of the cutter head, improves the feel of switching gears, and reduces the volume of the hair clipper head by arranging a limit member and a limit groove on the side of the cutter head.
[0004] Part 1:
[0005] An adjustable cutter head comprises a fixed blade, a movable blade, a movable part of the movable blade, a fixed blade fixing part, an adjustment handle, and a movable part of the handle;
[0006] The fixed blade is fixedly connected to the fixed blade fixing member, the fixed blade fixing member is provided with the movable blade movable member which can slide along the second direction, and the movable blade movable member is connected to the movable blade;
[0007] The handle movable member is fixed to the outer side of the fixed blade fixing member, and the handle movable member is provided with a first through hole, a first groove and a limiting member, and the opening of the first groove faces the fixed blade fixing member; the side of the fixed blade fixing member corresponding to the handle movable member is provided with a first through hole and a second through hole; the side of the movable blade movable member corresponding to the handle movable member is provided with a connecting hole and a plurality of limiting grooves, and the plurality of limiting grooves are distributed along the second direction; one end of the limiting member is located in the first groove, and the other end passes through the second through hole of the fixed blade fixing member and is limited to one of the limiting grooves;
[0008] The adjustment handle includes a hand rod and a hand rod fixing part. The hand rod fixing part passes through the first through hole, the first penetration hole and the connecting hole in sequence to fix the hand rod to the movable part of the movable blade. When the hand rod rotates along the first direction, the hand rod fixing part moves in the first through hole and the first penetration hole and drives the movable part of the movable blade to slide in the second direction, and the other end of the limiting part slides from one limiting groove to another limiting groove.
[0009] The adjustable cutter head described in the utility model has a limit member and a limit slot disposed on the side of the movable member of the movable blade. This reduces the overall thickness of the cutter head, improves the feel of gear switching, and also increases the compactness of the cutter head structure, reducing the size of the hair clipper head. When the gear needs to be adjusted, the operating handle rotates in a first direction, driving the handle fixing member to move within the first through hole and the first through hole, thereby driving the movable member of the movable blade to move in a second direction. The movable member then drives the movable blade to move in the second direction. During this period, the limit slot of the movable member of the movable blade moves, causing the limit member to disengage and enter the next limit slot, completing one gear adjustment.
[0010] As a preferred solution, the plurality of limit grooves form a continuous wave groove, wherein the wave groove is provided with a plurality of raised portions and recessed portions arranged in sequence. The limit grooves form a continuous wave groove, which makes the gear adjustment process more continuous and the hand feel better.
[0011] As a preferred solution, the limiting member includes a marble and a shift spring, one end of the shift spring is located in the first groove, and the other end passes through the second through hole of the fixed blade fixing member, and the marble is pressed between the wave groove and the shift spring. The use of marbles and shift springs can produce a damping feeling when shifting. When the wave groove moves, the marble moves from the recessed position to the raised position and compresses the shift spring; when the wave groove continues to move, the shift spring resets to generate elastic force, pushing the marble from the raised position to the recessed position. The marble collides with the recessed position of the wave groove, producing a crisp "tick-tick" sound, which adds a sense of rhythm when adjusting each gear.
[0012] As a preferred embodiment, the adjustment handle further includes a bearing. The handle bar is provided with a receiving hole, the bearing is located within the receiving hole, and the handle bar fixing member passes through the bearing, the first through hole, the first through hole, and the connecting hole in sequence. Providing the receiving hole in the handle bar and installing the bearing ensures that the adjustment handle is not easily loosened when adjusting the gear.
[0013] As a preferred embodiment, the end of the handle bar near the receiving hole is further provided with a rotation axis, and the side of the movable handle member is further provided with a slot that matches the rotation axis, into which the rotation axis is inserted. With the arrangement of the rotation axis and the slot, when adjusting the gear, the handle rotates around the rotation axis as the center, making the adjustment process more stable.
[0014] As a preferred solution, the fixed blade is fixedly connected to the fixed blade fixing member via a first fixing member. The fixed blade is connected to the fixed blade fixing member via the fixing member, which is convenient for installation and disassembly.
[0015] As a preferred embodiment, the invention further comprises a movable blade slider, wherein the movable blade slider includes a movable blade spring, the movable blade spring being connected to the movable blade slider so that the movable blade slider can slide back and forth along the third direction, wherein the third direction is perpendicular to the second direction; the movable blade slider is fixedly connected to the movable blade. When the movable blade slider moves back and forth along the second direction, the movable blade spring in the movable blade slider simultaneously moves, thereby driving the movable blade slider to move, and the movable blade slider drives the movable blade to move back and forth. Furthermore, when the movable blade needs to move left and right along the third direction to cut hair, the movable blade slider slides under the restraint of the movable blade spring, thereby restraining the sliding of the movable blade.
[0016] As a preferred solution, the movable blade member is formed with an accommodation space, and the movable blade member includes a spring fixing block and a second fixing member. The spring fixing block, the movable blade spring, and the movable blade sliding member are located in the accommodation space, and a second groove is provided on the spring fixing block. Both ends of the movable blade spring are connected to the movable blade sliding member, and the middle portion of the movable blade spring is clamped in the second groove. The second fixing member covers the middle portion of the movable blade spring and is fixed to the spring fixing block. Providing the spring fixing block and installing the movable blade spring in the movable blade member not only simplifies the structure but also makes better use of the accommodation space in the movable blade member. The movable blade spring is clamped in the second groove, and the second fixing member covers the spring fixing block, which can play a protective role and increase the service life of the movable blade spring.
[0017] As a preferred solution, the movable blade slider includes a body connecting portion. The body connecting portion is connected to the body, so that the movable blade and the fixed blade head move relative to each other, thereby cutting hair.
[0018] Part II:
[0019] A hair clipper comprises a body and the adjustable cutter head described in the first part, wherein the body is connected to the adjustable cutter head. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is an exploded view of an adjustable cutter head;
[0021] Figure 2 It is a left view of an adjustable cutter head handle;
[0022] Figure 3 This is an assembly diagram of an adjustable cutter head;
[0023] Among them, 1-fixed blade, 2-moving blade, 3-moving blade movable part, 31-moving blade spring, 32-wave groove, 33-connecting hole, 34-second screw, 35-second groove, 5-moving blade sliding part, 51-body connecting part, 6-fixed blade fixing part, 61-first through hole, 62-second through hole, 63-third through hole, 64-first screw, 7-adjusting handle, 71-hand lever, 72-bearing, 73-third screw, 74-accommodating hole, 75-cylindrical rotating shaft, 8-handle movable part, 81-first through hole, 82-second through hole, 83-first groove, 84-marble, 85-gear spring, 86-cylindrical slot, 87-fourth screw, 91-first direction, 92-second direction, 93-third direction. DETAILED DESCRIPTION
[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.
[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0026] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.
[0027] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing embodiments of the present invention, cross-sectional views of device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.
[0028] like Figure 1-3 As shown, the adjustable cutter head described in the present invention includes a fixed blade 1, a movable blade 2, a movable blade movable part 3, a movable blade sliding part 5, a fixed blade fixing part 6, an adjustment handle 7, and a handle movable part 8.
[0029] The fixed blade 1 is fixedly connected to the bottom of the fixed blade fixing member 6 by a first screw 64. A handle movable member 8 is fixed to the outside of the fixed blade fixing member 6. The handle movable member 8 has a first through hole 81, a second through hole 82, a first groove 83, a marble 84 and a shift spring 85. The first groove 83 opens toward the fixed blade fixing member 6. The side of the fixed blade fixing member 6 corresponding to the handle movable member 8 has a first through hole 61, a second through hole 62 and a third through hole 63. The side of the movable blade movable member 3 corresponding to the handle movable member 8 is provided with a wave groove 32 and a connecting hole 33.
[0030] The movable blade part 3 is installed in the fixed blade fixing part 6, and an accommodating space is formed in the movable blade part 3. The movable blade part 3 includes a movable blade spring 31, a second screw 34 and a spring fixing block, and all are located in the accommodating space. The spring fixing block is provided with a second groove 35; both ends of the movable blade spring 31 are connected to the movable blade sliding part 5, the middle part of the movable blade spring 31 is clamped in the second groove 35, the second screw 34 is covered in the middle part of the movable blade spring 31 and fixed to the spring fixing block; the movable blade sliding part 5 is also located in the accommodating space, the movable blade sliding part 5 is fixedly connected to the movable blade 2, and the movable blade sliding part 5 drives the movable blade 2 to slide through the movable blade spring 31.
[0031] The adjustment handle 7 includes a handle 71, a bearing 72, and a third screw 73. The handle 71 is provided with a receiving hole 74, and the bearing 72 is located within the receiving hole 74. The third screw 73 passes through the bearing 72, the first through hole 81, the first through hole 61, and the connecting hole 33 in sequence, thereby rotatably securing the handle 71 to the movable blade member 3. A cylindrical rotating shaft 75 is also provided at the end of the handle 71 near the receiving hole 74. The side of the movable handle member 8 is also provided with a cylindrical retaining groove 86 that matches the cylindrical rotating shaft 75, and the cylindrical rotating shaft 75 is inserted into the cylindrical retaining groove 86.
[0032] The second through hole 82 of the movable handle member 8 communicates with the third through hole 63 of the fixed blade fixing member 6 and is fixed by a fourth screw 87. The movable handle member 8 is also provided with a ball 84 and a shift spring 85. One end of the shift spring 85 is located in the first groove 83, and the other end passes through the second through hole 62 of the fixed blade fixing member 6. The ball 84 abuts between the wave groove 32 and the shift spring 85. The ball 84 and the shift spring 85 adjust the shift position and fix it on the wave groove 32.
[0033] When the gear position needs to be adjusted, the operating handle 71 rotates in the first direction 91, the cylindrical rotating shaft 75 is constrained in the cylindrical locking groove 86, and the adjusting handle 7 rotates around the cylindrical rotating shaft 75, driving the third screw 73 to move in the first through hole 81 and the first through hole 61 along the second direction 92, thereby driving the movable blade movable member 3 to move in the second direction 92. The movable blade spring 31 in the movable blade movable member 3 simultaneously moves in the second direction 92, thereby driving the movable blade slider 5 to move in the second direction 92. The movable blade slider 5 drives the movable blade 2 to move in the second direction 92. In the present utility model, the first direction 91 is the circumferential direction around the cylindrical rotating shaft 75, and the second direction 92 is the extension direction of the wave groove 32.
[0034] At the same time, the wave groove 32 in the movable blade member 3 moves along the second direction 92. The wave groove 32 is provided with a plurality of raised and recessed positions arranged in sequence. When the wave groove 32 moves, the marble 84 moves from the recessed position to the raised position and compresses the gear spring 85, so that a damping feeling is generated when the gear is adjusted. The wave groove 32 continues to move along the second direction 92. The gear spring 85 resets and generates elastic force, pushing the marble 84 from the raised position to the recessed position. The marble 84 collides with the recessed position of the wave groove 32, producing a crisp "tick-tick" sound, completing a gear adjustment. During the gear adjustment process, the adjustment of each gear will be subject to a certain resistance, and a sound will be generated each time the adjustment is completed, so that a more rhythmic sense is generated when each gear is adjusted.
[0035] A hair clipper includes a body and an adjustable blade head. A movable blade slider 5 includes a body connection portion 51, which is connected to the body via the body connection portion 51. The body drives the body connection portion 51 to move along a third direction 93, thereby driving the movable blade 2 along the third direction 93 to cut hair. In the present invention, the movable blade 2 can move simultaneously in the second direction 92 and the third direction 93, with the third direction 93 being perpendicular to the second direction 92.
[0036] The above embodiment merely represents one embodiment of the present invention. Although the description is relatively specific and detailed, it should not be construed as limiting the scope of the patent. A person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and all such modifications and improvements fall within the scope of protection of the present invention.
Claims
1. An adjustable cutter head, characterized in that: It includes a fixed blade, a movable blade, a movable part of the movable blade, a fixed blade fixing part, an adjustment handle, and a movable part of the handle; The fixed blade is fixedly connected to the fixed blade fixing member, the fixed blade fixing member is provided with the movable blade movable member which can slide along the second direction, and the movable blade movable member is connected to the movable blade; The handle movable member is fixed to the outer side of the fixed blade fixing member, and the handle movable member is provided with a first through hole, a first groove and a limiting member, and the opening of the first groove faces the fixed blade fixing member; the side of the fixed blade fixing member corresponding to the handle movable member is provided with a first through hole and a second through hole; the side of the movable blade movable member corresponding to the handle movable member is provided with a connecting hole and a plurality of limiting grooves, and the plurality of limiting grooves are distributed along the second direction; one end of the limiting member is located in the first groove, and the other end passes through the second through hole of the fixed blade fixing member and is limited to one of the limiting grooves; The adjustment handle includes a hand rod and a hand rod fixing part. The hand rod fixing part passes through the first through hole, the first penetration hole and the connecting hole in sequence to fix the hand rod to the movable part of the movable blade. When the hand rod rotates along the first direction, the hand rod fixing part moves in the first through hole and the first penetration hole and drives the movable part of the movable blade to slide in the second direction, and the other end of the limiting part slides from one limiting groove to another limiting groove.
2. The adjustable cutter head according to claim 1, characterized in that: A plurality of the limiting grooves form a continuous wave groove, and the wave groove is provided with a plurality of raised portions and recessed portions arranged in sequence and at intervals.
3. The adjustable cutter head according to claim 2, characterized in that: The limiting component includes a marble and a shift spring, one end of the shift spring is located in the first groove, and the other end passes through the second through hole of the fixed blade fixing component, and the marble is pressed between the wave groove and the shift spring.
4. The adjustable cutter head according to claim 1, characterized in that: The adjustment handle also includes a bearing. A receiving hole is provided in the hand rod. The bearing is located in the receiving hole. The hand rod fixing member passes through the bearing, the first through hole, the first through hole and the connecting hole in sequence.
5. The adjustable cutter head according to claim 4, characterized in that: The end of the hand lever close to the accommodating hole is further provided with a rotating shaft, and the side of the handle movable part is further provided with a slot matching the rotating shaft, and the rotating shaft is embedded in the slot.
6. The adjustable cutter head according to claim 1, characterized in that: The fixed blade is fixedly connected to the fixed blade fixing member via a first fixing member.
7. The adjustable cutter head according to claim 1, characterized in that: It also includes a movable blade sliding part, the movable blade part includes a movable blade spring, the movable blade spring is connected to the movable blade sliding part, so that the movable blade sliding part can slide back and forth along the third direction, and the third direction is perpendicular to the second direction; the movable blade sliding part is fixedly connected to the movable blade.
8. The adjustable cutter head according to claim 7, characterized in that: The movable part of the movable blade is formed with an accommodating space, and the movable part of the movable blade includes a spring fixing block and a second fixing member. The spring fixing block, the movable blade spring and the movable blade sliding member are located in the accommodating space, and a second groove is provided on the spring fixing block; both ends of the movable blade spring are connected to the movable blade sliding member, and the middle part of the movable blade spring is clamped in the second groove, and the second fixing member cover is arranged on the middle part of the movable blade spring and is fixed to the spring fixing block.
9. The adjustable cutter head according to claim 1, characterized in that: The movable blade slider includes a body connecting portion.
10. A hair clipper comprising a body and the adjustable cutter head according to any one of claims 1 to 9, wherein the body is connected to the adjustable cutter head.