Moving knife adjusting induction hair clipper
By designing a circumferentially rotatable knob assembly, using multiple second contact surfaces to contact the first contact surface, the problem of the existing haircut push rod needs to be turned in reverse, and the function of rotating the knob in one direction is realized , improves the consumption experience.
Patent Information
- Application Number
- CN202323595287.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-26
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2033-12-26
AI Technical Summary
The existing hair clipper needs to turn the knob in reverse when the push rod is reset, and cannot rotate circumferentially, which affects the consumption experience.
A knob assembly including a knob bracket and a knob cap is designed. The knob cap can drive the knob bracket to rotate circumferentially, contact with the first contact surface through a plurality of second contact surfaces, and control the feed amount and gear position of the push rod.
It realizes that the knob can rotate in one direction, which can both move forward and reset without reverse rotation, improving the consumption experience.
Smart Images
Figure CN222430803U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hair clippers, in particular to a hair clipper with a movable blade adjustment sensor. Background Art
[0002] The cutter head of the hair clipper includes a movable blade and a fixed blade. The movable blade is a reciprocating blade that cooperates with the fixed blade to perform haircuts. When adjusting the position of the movable blade relative to the fixed blade, a push rod slidably disposed on the body of the hair clipper is usually used to contact the movable blade and push the movable blade to generate displacement. In order to facilitate the control of the displacement of the push rod, in the prior art, a knob is provided and then the knob is engaged with the push rod. Through the engaged knob and push rod, the arc of the knob rotation can be controlled to accurately control the feed amount of the push rod, and the feed amount of the push rod can be accurately divided into gears.
[0003] However, in the above method, when the push rod is reset, the knob needs to be rotated in the opposite direction, and the knob cannot be rotated in a circular direction (that is, it always rotates in one direction), which affects the consumer experience. Utility Model Content
[0004] The main purpose of the utility model is to provide a movable blade adjustment induction hair clipper with a knob capable of circumferential rotation.
[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a movable blade adjustment induction hair clipper, comprising a housing, a blade head assembly arranged at one end of the housing, a push rod slidably arranged on the housing, and a knob assembly rotatably arranged on the housing, a middle portion of the push rod is provided with a clearance groove, the knob assembly passes through the clearance groove and is rotatably connected to the housing, and a first contact surface that contacts the knob assembly is provided on one side of the push rod corresponding to the blade head assembly;
[0006] The knob assembly includes a knob bracket and a knob cap installed on the knob bracket. Rotating the knob cap can drive the knob bracket to rotate circumferentially on the shell. The knob bracket is provided with multiple second contact surfaces for abutting and cooperating with the first contact surface. The length of the perpendicular line from each second contact surface to the rotation center of its knob bracket is different, and the perpendicular lines are symmetrically distributed; the second contact surface abuts against the first contact surface to push the push rod to move toward the tool head assembly.
[0007] Furthermore, the second contact surfaces are provided with 8 pieces, and the angle between each second contact surface and the perpendicular line of the rotation center of the knob bracket is 45°;
[0008] A symmetry line is drawn between the plane where the shortest vertical line is located and the plane where the longest vertical line is located, and the vertical line on one side of the symmetry line gradually becomes longer along the rotation direction of the knob bracket.
[0009] Furthermore, a positioning ring is provided at the position of the corresponding knob bracket of the shell, a positioning ring rotatably cooperated with the positioning ring is provided on the knob bracket, a mounting frame is provided in the middle of the positioning ring, a positioning frame is provided in the middle of the positioning ring, the positioning frame is fixedly installed with the mounting frame, a control unit and a touch point are provided on the positioning frame, the control unit is connected with the touch point and can control the start and stop of the cutter head assembly; a clearance hole is opened at the top of the knob cap at the position of the positioning frame, the top of the positioning frame passes through the knob cap, and the touch point can be triggered by touching the top of the positioning frame with a finger.
[0010] Furthermore, the cutter head assembly includes a fixed knife, a movable knife, a torsion spring body and a torsion spring bracket, the movable knife is located above the fixed knife, the torsion spring body is placed in the torsion spring bracket and both ends of the torsion spring body are connected to the movable knife, the torsion spring bracket includes a lower rotating shaft and an upper contact rod, the torsion spring bracket is rotatably connected to the bottom of the shell through the lower rotating shaft, and one end of the push rod is in contact with the contact rod, which is used to push the torsion spring bracket to rotate in the direction of approaching and moving away from the movable knife with the rotating shaft as the center.
[0011] Furthermore, the bottom surface of the knob cap is slidably matched with the shell, and an M-shaped notch is provided on the bottom surface of the knob cap, and the notch faces the direction of the shell.
[0012] Furthermore, it also includes a knob cover, which is arranged on the top of the positioning frame and does not affect the normal triggering of the touch point by the finger.
[0013] The beneficial effects of the utility model are embodied in:
[0014] The utility model controls the feed amount of the push rod by having different lengths of perpendicular lines from each second contact surface to the rotation center of its knob bracket, and accurately divides the feed amount of the push rod into gears; because the perpendicular lines are symmetrically distributed, the push rod can be adjusted to move forward and reset only by turning the knob in one direction, without having to turn the knob in the opposite direction, thus providing a good consumer experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is an overall view of the movable blade adjustment induction hair clipper of the utility model;
[0016] Figure 2 It is a structural exploded diagram of the knob assembly described in the utility model;
[0017] Figure 3 A half-section view of the blade adjustment sensor hair clipper of the utility model;
[0018] Figure 4 for Figure 3 Magnified view at A in the middle;
[0019] Figure 5 This is a schematic diagram of the cooperation between the push rod and the knob bracket in the utility model;
[0020] Figure 6 It is a top view of the knob bracket described in the utility model;
[0021] Figure 7 This is a structural view of the push rod described in the utility model;
[0022] Figure 8 This is an internal structure diagram of the cutter head assembly described in the utility model;
[0023] Fig. 9 This is a structural view of the torsion spring bracket described in the utility model.
[0024] In the figure:
[0025] 1. Shell; 11. Positioning ring; 12. Mounting bracket; 2. Cutting head assembly; 21. Fixed cutter; 22. Moving cutter; 23. Torsion spring body; 24. Torsion spring bracket; 241. Rotating shaft; 242. Contact rod; 3. Push rod; 31. Displacement groove; 32. First contact surface; 4. Knob assembly; 41. Knob bracket; 411. Positioning ring; 412. Second contact surface; 42. Positioning bracket; 421. Control unit; 43. Knob cap; 431. Displacement hole; 432. Notch; 5. Battery; 6. Motor; 7. Knob cover. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other.
[0027] See also Figure 1-Figure 9 .
[0028] The utility model discloses a movable blade adjustment induction hair clipper, comprising a housing 1, a blade head assembly 2 arranged at one end of the housing 1, a push rod 3 slidably arranged on the housing 1, and a knob assembly 4 rotatably arranged on the housing 1;
[0029] A clearance groove 31 is provided in the middle of the push rod 3, and the knob assembly 4 is rotatably connected to the housing 1 through the clearance groove 31. A first contact surface 32 that contacts the knob assembly 4 is provided on one side of the push rod 3 corresponding to the cutter head assembly 2;
[0030] The knob assembly 4 includes a knob bracket 41 and a knob cap 43 installed on the knob bracket 41. Rotating the knob cap 43 can drive the knob bracket 41 to rotate circumferentially on the shell 1 (that is, it can rotate all the way to the left or all the way to the right). The knob bracket 41 is provided with a plurality of second contact surfaces 412 for abutting and cooperating with the first contact surface 32. The length of the perpendicular line from each second contact surface 412 to the rotation center of its knob bracket 41 is different, and the perpendicular lines are symmetrically distributed; the second contact surface 412 abuts against the first contact surface 32 to push the push rod 3 to move toward the direction of the tool head assembly 2.
[0031] The utility model controls the feed amount of the push rod 3 by having different lengths of perpendicular lines from each second contact surface 412 to the rotation center of its knob bracket 41, and accurately divides the feed amount of the push rod 3 into gears; because the perpendicular lines are symmetrically distributed, the push rod 3 can be adjusted to move forward and reset only by turning the knob in one direction, without having to turn the knob in the opposite direction, which provides a good consumer experience.
[0032] In one embodiment, there are 8 second contact surfaces 412, and the angle between each second contact surface 412 and the perpendicular line from the rotation center of the knob bracket 41 is 45°; the distribution pattern of each perpendicular line is: a symmetry line is made with the plane where the shortest perpendicular line is located and the plane where the longest perpendicular line is located, and the perpendicular line on one side of the symmetry line gradually changes from short to long along the rotation direction of the knob bracket 41.
[0033] In one embodiment, a positioning ring 11 is provided at a position corresponding to the knob bracket 41 of the shell 1, and a positioning ring 411 that rotates with the positioning ring 11 is provided on the knob bracket 41, a mounting frame 12 is provided in the middle of the positioning ring 11, and a positioning frame 42 is provided in the middle of the positioning ring 411. The positioning frame 42 is fixedly installed with the mounting frame 12, and a control unit 421 and a touch point are provided on the positioning frame 42. The control unit 421 is connected to the touch point and can control the start and stop of the cutter head assembly 2; a clearance hole 431 is provided at the top of the knob cap 43 at a position corresponding to the positioning frame 42, and the top of the positioning frame 42 passes through the knob cap 43, and the touch point can be triggered by touching the top of the positioning frame 42 with a finger.
[0034] In a specific implementation, a battery 5 and a motor 6 are provided inside the shell 1. The battery 5 supplies power to the motor 6, the control unit 421, the touch point and other power-consuming components. The motor 6 is electrically connected to the control unit 421. When the operator adjusts the position of the movable knife 22, the finger is placed on the knob position to contact the knob. Since the top of the positioning frame 42 is located in the middle of the knob, the touch point will be automatically triggered after the finger is placed on the knob. At this time, the control unit 421 receives the touch signal from the touch point, controls the motor 6 to stop, and stops the movement of the cutter head assembly 2. When the touch signal from the touch point is received again, the motor 6 is controlled to start, so that the cutter head assembly 2 continues to move, thereby improving the safety of the equipment.
[0035] In one embodiment, the cutter head assembly 2 includes a fixed knife 21, a movable knife 22, a torsion spring body 23 and a torsion spring bracket 24, the movable knife 22 is located above the fixed knife 21, the torsion spring body 23 is placed in the torsion spring bracket 24 and both ends of the torsion spring body 23 are connected to the movable knife 22, the torsion spring bracket 24 includes a lower rotating shaft 241 and an upper contact rod 242, the torsion spring bracket 24 is rotatably connected to the bottom of the shell 1 through the lower rotating shaft 241, and one end of the push rod 3 is in contact with the contact rod 242, which is used to push the torsion spring bracket 24 to rotate in the direction of approaching and moving away from the movable knife 22 with the rotating shaft 241 as the center.
[0036] In a specific implementation, the torsion spring body 23 is located in the middle of the torsion spring bracket 24, and the push rod 3 pushes the contact rod 242 to rotate the torsion spring bracket 24 toward the moving knife 22. The movement of the torsion spring bracket 24 drives the torsion spring body 23 to move. Since the end of the torsion spring body 23 connected to the moving knife 22 is elastic, the torsion spring body 23 drives the moving knife 22 to produce a planar displacement. When the push rod 3 retreats, the torsion spring pushes the torsion spring bracket 24 in the opposite direction to rotate away from the moving knife 22 under the action of the elastic force.
[0037] In one embodiment, the bottom surface of the knob cap 43 is slidably matched with the housing 1, and an M-shaped notch 432 is provided on the bottom surface of the knob cap 43, and the notch 432 faces the housing 1. With this design, the bottom surface of the knob cap 43 is slidably matched with the housing 1 to reduce the amount of broken hair entering between the knob cap 43 and the housing 1 and affecting the normal rotation of the knob. The M-shaped notch 432 can store the broken hair in the notch 432 even if some broken hair enters, thereby avoiding affecting the normal rotation of the knob.
[0038] In one embodiment, a knob cover 7 is further included, which is arranged on the top of the positioning frame 42 and does not affect the normal triggering of the touch point by the finger. This design mainly protects the positioning frame 42 and the touch point.
[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
[0040] It should be noted that if the embodiments of the present invention involve directional indications (such as up and down), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0041] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0042] In addition, "plurality" means two or more.
Claims
1. A hair clipper with a movable blade adjustment sensor, comprising a housing (1), a blade head assembly (2) arranged at one end of the housing (1), a push rod (3) slidably arranged on the housing (1), and a knob assembly (4) rotatably arranged on the housing (1), characterized in that: A clearance groove (31) is provided in the middle of the push rod (3), the knob assembly (4) passes through the clearance groove (31) and is rotatably connected to the housing (1), and a first contact surface (32) in contact with the knob assembly (4) is provided on one side of the push rod (3) corresponding to the cutter head assembly (2); The knob assembly (4) comprises a knob bracket (41) and a knob cap (43) mounted on the knob bracket (41); the knob cap (43) is rotated to drive the knob bracket (41) to rotate circumferentially on the housing (1); a plurality of second contact surfaces (412) for abutting and cooperating with the first contact surface (32) are provided on the knob bracket (41); the length of a vertical line from each second contact surface (412) to the rotation center of the knob bracket (41) is different, and the vertical lines are symmetrically distributed; the push rod (3) is pushed to move in the direction of the cutter head assembly (2) by the second contact surface (412) abutting against the first contact surface (32).
2. The hair clipper with movable blade (22) adjustment sensor according to claim 1, characterized in that: There are eight second contact surfaces (412), and the angle between each second contact surface (412) and a perpendicular line to the rotation center of the knob bracket (41) is 45°; A symmetry line is drawn with the plane where the shortest vertical line is located and the plane where the longest vertical line is located, and the vertical line on one side of the symmetry line gradually becomes longer from short along the rotation direction of the knob bracket (41).
3. The hair clipper with movable blade (22) adjustment sensor according to claim 1 or 2, characterized in that: A positioning ring (11) is arranged at a position corresponding to the knob bracket (41) of the shell (1), and a positioning ring (411) rotatably matched with the positioning ring (11) is arranged on the knob bracket (41), a mounting frame (12) is arranged in the middle of the positioning ring (11), and a positioning frame (42) is arranged in the middle of the positioning ring (411), the positioning frame (42) and the mounting frame (12) are fixedly installed, and a control unit (421) and a touch point are arranged on the positioning frame (42), and the control unit (421) is connected to the touch point and can control the start and stop of the cutter head assembly (2); a clearance hole (431) is opened at the top of the knob cap (43) at a position corresponding to the positioning frame (42), and the top of the positioning frame (42) passes through the knob cap (43), and the touch point can be triggered by a finger touching the top of the positioning frame (42).
4. The hair clipper with movable blade (22) adjustment sensor according to claim 1 or 2, characterized in that: The cutter head assembly (2) comprises a fixed cutter (21), a movable cutter (22), a torsion spring body (23) and a torsion spring bracket (24); the movable cutter (22) is located above the fixed cutter (21); the torsion spring body (23) is placed in the torsion spring bracket (24) and both ends of the torsion spring body (23) are connected to the movable cutter (22); the torsion spring bracket (24) comprises a lower rotating shaft (241) and an upper contact rod (242); the torsion spring bracket (24) is rotatably connected to the bottom of the shell (1) via the lower rotating shaft (241); one end of the push rod (3) contacts the contact rod (242) and is used to push the torsion spring bracket (24) to rotate in a direction close to or away from the movable cutter (22) with the rotating shaft (241) as the center.
5. The hair clipper with movable blade (22) adjustment sensor according to claim 1 or 2, characterized in that: The bottom surface of the knob cap (43) is slidably matched with the housing (1), and an M-shaped notch (432) is provided on the bottom surface of the knob cap (43), and the notch (432) faces the housing (1).
6. The hair clipper with movable blade (22) adjustment sensor according to claim 3, characterized in that: It also includes a knob cover (7), which is arranged on the top of the positioning frame (42) and does not affect the normal triggering of the touch point by the finger.