A hair cutting device employing a roller operated switch

Abstract

A hair cutting device with a roller type operation switch, comprising: a housing; a roller arranged along the axial direction of the housing and rotatable about its own axis, the rotation direction of the roller being perpendicular to the axial direction of the housing; a circuit board arranged in the housing; an encoder linked with a first shaft on one side of the roller; a support for rotatably supporting a second shaft on the other side of the roller; and a touch switch electrically arranged on the circuit board and located below the second shaft, the roller being pressable by force so that the second shaft triggers the touch switch. The two core functions of speed adjustment and switch / mode switching are integrated in one roller, simplifying the appearance of the device and optimizing the operation mode, and different function controls are realized by rotation and pressing of the roller. The cutting speed can be linearly or steplessly adjusted by rolling operation, the control being more fine and direct, greatly improving the operation efficiency and trimming effect.

Description

Technical Field

[0001] This utility model relates to the field of facial contouring technology, specifically to a hair trimming device using a roller-type operating switch. Background Technology

[0002] Existing hair trimming devices typically control power on / off and a limited number of speed settings via mechanical toggle switches or separate buttons. These control methods have the following drawbacks: Inconvenient to operate: Users need to switch or press multiple times to find the appropriate gear, making it impossible to achieve fast and linear speed adjustment.

[0003] Single function: Switches are usually only responsible for turning on and off or switching gears, with low functional integration and complex user interface.

[0004] Poor user experience: During trimming, especially when frequent speed adjustments are required (such as when dealing with parts of different fineness), traditional switches cannot be operated blindly with one hand, affecting operational efficiency and accuracy.

[0005] Therefore, there is an urgent need in the field for a switch solution that can integrate multiple control functions and provide an intuitive and precise operating experience to meet the high-performance requirements of modern hair cutting devices. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a hair cutting device using a roller-type operating switch.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A hair-cutting device employing a roller-type operating switch, comprising: The housing, which constitutes the handle of the hair-cutting device, has an axial direction; A roller is arranged along the axial direction of the housing and is rotatable about its own axis. The direction of rotation of the roller is perpendicular to the axial direction of the housing and is at least partially exposed outside the handle for user operation. The circuit board is housed within the casing; An encoder is electrically disposed at one end of the circuit board and is linked to a first shaft on one side of the roller. A bracket for rotatably supporting a second shaft on the other side of the roller; A tactile switch, electrically mounted on the circuit board and located below the second axis, The roller can be pressed, causing the second axis to trigger the tactile switch. The encoder and tactile switch are configured to be electrically connected to the drive motor of the hair cutting device. The rotation of the roller is used to adjust the speed of the drive motor through the encoder, thereby controlling the movement speed of the cutter head assembly.

[0008] The bracket is configured to allow the second axis to displace when pressed, thereby triggering the tactile switch.

[0009] The bracket is provided with a guide groove along the pressing direction, and the end of the second shaft can be slidably disposed in the guide groove.

[0010] The force for resetting the second axis is provided by the tactile switch.

[0011] The encoder is a rotary encoder, which generates pulse signals corresponding to the direction and / or amount of rotation by receiving the rotation of the first shaft.

[0012] The surface of the roller is provided with anti-slip texture or knurling.

[0013] The trigger signal of the tactile switch is used to control the start / stop of the drive motor or the mode switching.

[0014] The beneficial effects of this invention are as follows: It integrates two core functions—speed adjustment and on / off / mode switching—on a single roller, simplifying the device's appearance and optimizing operation. Different functions are controlled by rotating and pressing the roller. The shearing speed can be adjusted linearly or steplessly through rolling, providing more precise and direct control and significantly improving operational efficiency and trimming results. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0017] Figure 3 for Figure 2 Enlarged diagram of point A in the diagram.

[0018] Figure 4 This is a front view of the roller of this utility model.

[0019] Figure 5 This is a schematic diagram of the roller structure of this utility model.

[0020] Figure 6 This is a cross-sectional view of the roller of this utility model. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] It should be noted that all directional indicators in this utility model embodiment, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicator will also change accordingly.

[0023] This utility model provides a hair cutting device using a roller-type operating switch. Hair cutting devices include shavers, nose hair trimmers, hair clippers, and razors. This embodiment uses hair clippers as an example. Figure 1 and Figure 2 As shown, the housing 100 forms part of the handle of the hair cutting device. The roller 600 is arranged along the axial direction of the housing 100, and its rotation direction is perpendicular to the axial direction of the housing 100. The circumferential surface of the roller 600 is provided with anti-slip texture 21 or knurling to ensure friction when the fingers come into contact with the roller and to avoid operational errors caused by wet hands or slipping hands.

[0024] The housing 100, which constitutes the handle of the hair cutting device, has an axial direction, wherein the axial direction is the length direction of the housing.

[0025] like Figure 3 As shown, a roller 600 is arranged along the axial direction of the housing 100 and can rotate about its own axis. The rotation direction of the roller 600 is perpendicular to the axial direction of the housing 100 and is at least partially exposed outside the handle for user operation.

[0026] The circuit board 400 is disposed inside the housing 100 and is fixed inside the housing by screws.

[0027] An encoder 500 is electrically disposed at one end of the circuit board 100 and is linked to a first shaft 610 on one side of the roller 600. In this embodiment, the encoder 500 is a rotary encoder, which generates pulse signals corresponding to the direction and / or amount of rotation by receiving the rotation of the first shaft 610. That is, when the roller rotates, the first shaft 620 drives the encoder knob to rotate, the encoder generates a corresponding pulse signal, which is sent to the control system of the hair cutting device. The system adjusts the speed of the drive motor 200 steplessly or in stages according to the frequency or number of signals, thereby ultimately controlling the movement speed of the cutter head assembly.

[0028] like Figure 4 , Figure 5 and Figure 6 As shown, the second shaft 620 on the other side of the roller 600 is supported by a bracket 700. The bracket 700 is configured to allow the second shaft 620 to displace when pressed, thereby triggering the tactile switch 800. Specifically, the bracket 700 has a guide groove 710 along the pressing direction, and the end of the second shaft 620 is slidably disposed within the guide groove 710, as shown in the pressing direction. Figure 6 As indicated by the middle arrow Y. The second shaft is rotatably disposed within the guide groove, and can also slide relative to the guide groove under the action of external force. On the circuit board, a tactile switch 800 is disposed directly below the second shaft, and its electrical properties are disposed on the circuit board 100.

[0029] When the user presses the roller 600, the second shaft 620 slides in the guide groove and moves downward, triggering the tactile switch 800. This trigger signal can be defined as controlling the main power switch of the hair cutting device to achieve one-button power on / off, or it can be defined as switching the working mode, such as normal mode, silent mode, or powerful mode.

[0030] The force for resetting the second shaft 620 is provided by the tactile switch 800. The self-resetting force of the tactile switch 800 is used directly to support the second shaft, while reducing the distance between the two, so that a slight press of the roller can trigger the tactile switch.

[0031] In some embodiments, an elastic reset element, such as a spring, may be provided in the guide groove, such that when the roller is pressed, the spring is compressed, and when the user releases the pressing force, the spring resets and the rebound force generated will push the roller back to the initial position.

[0032] The surface of the roller 600 is provided with anti-slip textures or knurling to enhance the aesthetics of the roller while further improving friction.

[0033] This embodiment combines encoding and press-triggered functions through a roller structure, utilizing its rotation and pressing to provide a highly integrated, intuitive, and precise control interface, significantly improving the product's user experience and market competitiveness.

[0034] The embodiments should not be regarded as limitations on the present invention, but any improvements made based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. A hair cutting device employing a roller-type operating switch, characterized in that: It includes: The housing (100), which constitutes the handle of the hair cutting device, has an axial direction; A roller (600) is arranged along the axial direction of the housing (100) and is rotatable about its own axis. The rotation direction of the roller (600) is perpendicular to the axial direction of the housing (100) and is at least partially exposed outside the handle for user operation. A circuit board (400) is disposed within the housing (100); An encoder (500) is electrically disposed at one end of the circuit board (400) and is linked to a first shaft (610) on one side of the roller (600); A bracket (700) is used to rotatably support a second shaft (620) on the other side of the roller (600). A tactile switch (800) is electrically disposed on the circuit board (400) and located below the second axis (620). The roller (600) can be pressed, causing the second axis (620) to trigger the tactile switch (800). The encoder (500) and tactile switch (800) are configured to be electrically connected to the drive motor (200) of the hair cutting device. The rotation of the roller (600) is used to adjust the speed of the drive motor (200) through the encoder (500), thereby controlling the movement speed of the cutter head assembly (300).

2. The hair cutting device using a roller-type operating switch according to claim 1, characterized in that: The bracket (700) is configured to allow the second axis (620) to be displaced when pressed, thereby triggering the tactile switch (800).

3. A hair cutting device employing a roller-type operating switch according to claim 1 or 2, characterized in that: The bracket (700) is provided with a guide groove (710) along the pressing direction, and the end of the second shaft (620) can be slidably disposed in the guide groove (710).

4. A hair cutting device employing a roller-type operating switch according to claim 3, characterized in that: The force for resetting the second axis (620) is provided by the tactile switch (800).

5. A hair cutting device employing a roller-type operating switch according to claim 1, characterized in that: The encoder (500) is a rotary encoder that generates pulse signals corresponding to the direction and / or amount of rotation by receiving the rotation of the first shaft (610).

6. A hair cutting device employing a roller-type operating switch according to claim 1, characterized in that: The surface of the roller (600) is provided with anti-slip texture or knurling.

7. A hair cutting device employing a roller-type operating switch according to claim 1, characterized in that: The trigger signal of the tactile switch (800) is used to control the start / stop or mode switching of the drive motor (200).

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