Bright head machine

Abstract

A head polishing machine relates to the technical field of hair trimming and comprises a machine body and a trimming cutter head arranged at one end of the machine body, the machine body comprises a first end, a second end and a third end, the first end is used for being connected with the trimming cutter head, and a first mounting space used for mounting a gear set driving the trimming cutter head to act is arranged in the first end; the second end is arranged opposite to the first end, a clamping space for hand holding is formed between the second end and the first end, and a second mounting space for placing a control circuit board is arranged in the second end; the clamping section is connected between the first end and the second end, a third mounting space is formed in the clamping section, the driving motor is arranged in the third mounting space and electrically connected with the control circuit board, the driving end of the driving motor is in transmission connection with the gear set through a driving gear, and the driving motor is moved into the middle clamping section from a traditional base position; the gravity center of the machine body is located at the handheld part, so that the defect that the head is heavy is obviously overcome; meanwhile, the thickness of the second end can be greatly reduced, the overall shape is more harmonious, and the holding comfort is improved.

Description

Technical Field

[0001] This invention relates to the field of hair repair technology, specifically to a bald head machine. Background Technology

[0002] With increasing emphasis on personal image and hygiene, shaver heads have become widely used as a tool for shaving hair. A traditional shaver head mainly consists of a motor, shaver head, casing, and power supply. Its working principle involves the motor driving the shaver head to rotate at high speed or reciprocate, thereby shaving the hair.

[0003] For example, Chinese patent CN120396013A discloses a multi-functional angle-adjustable bald head machine. Most existing bald head machines require one hand to hold, which is not a very reasonable way to hold them. Similarly, some companies have launched a similar I-shaped body structure. This structure allows fingers to pass through and hold the machine, making it convenient to operate. However, due to its unreasonable internal layout, the motor and battery are concentrated at the bottom of the body (i.e., the end of the handheld part), resulting in a thicker base and a lower center of gravity. This causes a top-heavy problem during use, making it unstable to hold and affecting operating comfort and trimming effect. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a laser head machine.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A bald head machine includes a body and a trimming head disposed at one end of the body. The fuselage includes: The first end is used to connect the trimmer head, and there is a first mounting space inside for mounting a gear set that drives the trimmer head to move; The second end is disposed opposite to the first end, and the two form a gripping space for hand-held use, which contains a second mounting space for placing the control circuit board. The clamping section, connecting the first and second ends, has a flat outer contour and can be clamped between any two adjacent fingers. It contains a third mounting space, within which a drive motor is located and electrically connected to the control circuit board. Its drive end is connected to the gear set via a drive gear. Furthermore, the thickness of the second end is less than the thickness of the first end.

[0006] The clamping section has a teardrop-shaped cross-section along its axial direction, with a pointed tip facing the gripping direction and an arc-shaped sidewall that gradually widens backward from the pointed tip, and its outline dimensions smoothly increase along the finger insertion direction.

[0007] The drive motor is positioned within the third mounting space, biased towards the side of the clamping section cross-section furthest from the tip.

[0008] The front end of the third installation space is provided with an interface board, and the interface board is electrically connected to the control circuit board located in the second installation space.

[0009] The trimmer head includes a trimmer head support base and a plurality of trimmer head assemblies disposed on the trimmer head support base, which are divided into a central trimmer head assembly and a plurality of circumferential trimmer head assemblies disposed around the central trimmer head assembly.

[0010] The circumferential cutter head assembly has several protrusions evenly distributed around its periphery.

[0011] The gear set includes a central gear linked to the central cutter head assembly, a driven gear linked to the circumferential cutter head assembly, and several small gears that mesh with the central gear and the driven gear respectively.

[0012] The tip of the clamping section has a rounded transition structure.

[0013] The connection between the clamping section and the first end and / or the second end is a rounded transition structure.

[0014] The second installation space also contains an ultra-thin battery.

[0015] The beneficial effects of this invention are as follows: by moving the drive motor from the traditional base position to the middle clamping section, the center of gravity of the device is located at the handheld part, which significantly improves the defect of being top-heavy; at the same time, the thickness of the second end can be greatly reduced, the overall shape is more harmonious, and the grip comfort is improved; the clamping section adopts a teardrop-shaped cross section and is equipped with an eccentric motor, which further optimizes the internal space utilization and feel. Attached Figure Description

[0016] Figure 1 This is a simplified schematic diagram of the present invention.

[0017] Figure 2 This is the front view of the present invention.

[0018] Figure 3 This is a cross-sectional schematic diagram of the AA of the present invention.

[0019] Figure 4 This is a cross-sectional schematic diagram of the present invention BB.

[0020] Figure 5 This is a schematic diagram showing the interaction between the gear set, the trimmer head, and the drive motor of the present invention. Detailed Implementation

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

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain a specific posture (as shown in the figure).

[0023] like Figure 1 and Figure 2 As shown, the present invention discloses a bald head machine, which includes a body and a detachable trimming head 400 disposed at one end of the body.

[0024] The body comprises a first end 100, a clamping section 300, and a second end 200 connected in sequence. Specifically, the body consists of three main parts connected in sequence: the first end 100, the clamping section 300, and the second end 200. These three parts are connected sequentially along the length of the body to form a complete gripping body. The first end 100 is located at the top of the body and is used to connect and mount the trimmer head 400. It has a first mounting space 110 inside, which mainly accommodates the gear set 800 that drives the trimmer head 400. The structural design of the first end 100 must ensure the stability of the connection with the trimmer head 400 and the accuracy of the transmission.

[0025] The second end 200 is positioned opposite the first end 100, located at the end of the device body. A gripping space 500 for handheld use is formed between the first end 100 and the second end 200. Unlike traditional designs, the gripping space 500 in this embodiment is not completely filled by a single section of the device body, but rather is formed by the first end 100, the gripping section 300, and the second end 200, creating an area through which the operator's fingers can pass. In use, the operator can spread their fingers (usually the index, middle, and ring fingers) and pass them through the space formed between the gripping section 300 and the palm for gripping. This "through-grip" method provides more points of force and better control compared to a simple cylindrical grip, making turning and pressing during haircutting more stable and precise.

[0026] The second end 200 has a second mounting space 210 for mounting the control circuit board 700 and a power supply (such as a rechargeable battery) to provide power to the entire device. Specifically, the control circuit board 700 and the ultra-thin battery 900 are arranged side-by-side or stacked in the second mounting space 210, and are electrically connected by wires or flexible circuit boards to realize power supply and control signal transmission. The ultra-thin battery 900 preferably uses a polymer lithium battery or a solid-state battery, and its thickness can be controlled within 3-5 mm, which can perfectly fit the internal contour of the second end 200, so that the overall thickness of the second end 200 can be strictly controlled. The ultra-thin battery 900 has the characteristics of high energy density, thinness, and customizable shape, and can provide sufficient battery life in a limited space.

[0027] Meanwhile, for ease of operation, the power switch can be directly located on the side of the second end 200, that is, the end face facing the palm or little finger. This way, when holding the device, the thumb or other fingers can naturally touch the switch, enabling blind operation and improving the user experience.

[0028] The clamping section 300 connects the first end 100 and the second end 200, and its shape constitutes the main outline of the handheld part in this embodiment. Its outer contour is flat and can be clamped between any two adjacent fingers. In this embodiment, the fingers refer to the ring finger, middle finger, or index finger. The clamping section 300 has a third mounting space 310 inside to accommodate the drive motor 600. That is, the drive motor 600, which is usually located in the second end 200 (base) in a conventional design, is cleverly moved forward to the middle clamping section 300. The drive motor 600 is electrically connected to the control circuit board 700 installed in the second end 200, and is powered and controlled by it. A drive gear 610 is installed on the drive end (output shaft) of the drive motor 600. This drive gear 610 is connected to the gear set 800 installed in the first mounting space 110, thereby transmitting power to the trimmer head 400. This layout shifts the center of gravity of the device from the traditional end (second end) to the middle (clamping section), completely solving the problem of traditional laser head cameras being top-heavy and unstable due to the concentration of motors, batteries, and other components in the base. Furthermore, since the second end 200 no longer needs to accommodate a large motor, its thickness can be significantly reduced, resulting in a more harmonious and slimmer overall design.

[0029] Among them, such as Figure 4As shown, to further optimize the utilization of internal space and the grip feel, in this preferred embodiment, the drive motor 600 is eccentrically positioned within the third mounting space 310. Specifically, taking into account the special cross-sectional shape of the clamping section 300 described below, the drive motor 600 is mounted biased towards the thicker side of the cross-section of the clamping section 300 (i.e., the side away from the grip tip). This not only makes full use of the internal space and avoids the clamping section 300 becoming excessively thick due to the motor shaft coinciding with the center of the entire machine, but also ensures that the dimensions of the clamping section 300 in the grip direction are ergonomic, thus improving comfort.

[0030] In this embodiment, the internal space corresponding to the tip 320 (i.e., the protruding portion of the teardrop-shaped cross-section) is used to mount the interface board 710. The interface board 710 integrates electronic components such as a charging interface, data interface, and indicator lights. These components typically have a considerable height, and placing them within the second end 200 would force an increase in the thickness of the second end 200. By cleverly transferring the interface board 710 to the tip 320 of the clamping section 300, not only is the remaining space inside the clamping section fully utilized, but the internal layout of the second end 200 is also made simpler. The second end 200 only needs to accommodate the control circuit board 700 and the power supply, further reducing its thickness.

[0031] This layout shifts the center of gravity of the entire device from the traditional end (second end) to the middle (clamping section), completely solving the problem of top-heavy and unstable grip caused by the concentrated placement of motors, batteries, and other components in the base of traditional laser head cameras. Simultaneously, because the second end 200 utilizes an ultra-thin battery 900 and is integrated with the control circuit board 700, its thickness can be achieved to an extremely thin profile. Through optimized design, the thickness of the second end 200 can be half that of the first end 100. Figure 2 As shown, the overall design is more harmonious and thinner, achieving a true "small base" visual effect and operating experience.

[0032] Meanwhile, the interface is located at the tip of the clamping section, making it convenient for users to charge or plug and unplug data cables while holding the device, thus improving ease of use. The interface board 710 is electrically connected to the control circuit board 700 via a flexible circuit board or wires. This connection can be achieved by plugging them together and then soldering, or by using pins. In this embodiment, the interface board 710 is positioned perpendicular to the control circuit board 700, and a stable electrical connection point is formed between the two, ensuring the reliability of signal transmission.

[0033] like Figure 3As shown, the clamping segment 300 has a teardrop-shaped cross-section along its axial direction. This teardrop-shaped structure has a pointed tip 320 facing the gripping direction (i.e., approximately towards the second end 200), and an arc-shaped sidewall that gradually widens from the tip backward (i.e., towards the interior of the clamping segment 300 or away from the gripping direction). The overall cross-sectional dimensions smoothly increase along the finger insertion direction (i.e., from the second end 200 towards the first end 100). This biomimetic design conforms to the physiological curves of the web of the hand and the inner side of the fingers when gripping: the pointed tip 320 fits precisely into the web of the hand or the connection between the fingers and the palm, while the gradually widening arc-shaped sidewall naturally conforms to the thicker part of the palm, making the grip very full and comfortable, and preventing slippage or rotation in the hand, further enhancing operational stability.

[0034] To further enhance grip comfort and prevent hand discomfort, the tip 320 of the clamping section 300 adopts a rounded transition structure. Similarly, the connection between the clamping section 300 and the first end 100 and / or the second end 200 also adopts a rounded transition structure, making the overall body shape smooth and natural, without sharp edges.

[0035] The trimmer head 400 includes a head support base and a plurality of head assemblies disposed on the head support base, which are divided into a central head assembly 410 and a plurality of circumferential head assemblies 420 disposed around the central head assembly 410. This multi-head rotating layout can effectively increase the shaving area, reduce the number of reciprocating movements, and improve shaving efficiency.

[0036] Furthermore, a plurality of raised points 421 are evenly distributed circumferentially around the periphery of the circumferential blade assembly 420. These raised points 421 are preferably made of flexible materials, such as silicone, rubber, or thermoplastic elastomers, possessing a certain degree of elasticity to avoid damage to the scalp. The height of the raised points 421 is slightly higher than the cutting height of the blade assembly, ensuring that the raised points 421 can contact the scalp while the blade is shaving. The surface of the raised points 421 can be designed as a smooth hemispherical or arc-shaped surface to provide a comfortable feel. During the haircutting process, as the trimmer head 400 moves on the scalp, these raised points 421 roll or slide on the scalp with the movement of the blade, producing a gentle pressing effect on the scalp, thereby achieving a massage function. This massage effect can promote scalp blood circulation, relieve tension during the haircutting process, improve comfort, and also help to clean up the hair clippings attached to the scalp after being cut by the blade, making the shave cleaner and more thorough. The distribution density and number of raised dots 421 can be adjusted according to actual needs to achieve the best massage effect and user experience.

[0037] like Figure 5As shown, the gear set 800 is disposed within the first mounting space 110 and is used to synchronously and effectively transmit the power of the drive motor 600 to all cutter head assemblies. The gear set 800 for driving these cutter head assemblies includes a central gear 810, multiple driven gears 820, and multiple pinions 830. The central gear 810 is linked to the central cutter head assembly 410, that is, the rotation of the central gear 810 directly drives the central cutter head assembly 410 to rotate. Each driven gear 820 is linked to a corresponding circumferential cutter head assembly 420. The multiple pinions 830 are rotatably disposed within the cutter head support and mesh with the central gear 810 and the driven gears 820 respectively, thereby transmitting power between the central gear 810 and the driven gears 820 to achieve synchronous rotation of all cutters.

[0038] As a specific implementation of gear transmission, the central gear 810 is preferably a double-layer gear structure, which can be a gear structure with a relatively large thickness. Its upper layer meshes with the pinion 830 to drive the circumferential cutter head assembly 420; its lower layer directly meshes with the drive gear 610 at the end of the drive motor 600 to receive power from the drive motor 600. This double-layer gear design allows power input and power distribution to be completed on the same gear, resulting in a compact structure and high transmission efficiency.

[0039] In summary, this embodiment of the bald head trimmer innovatively arranges the drive motor 600 within the clamping section 300 in the middle of the body, combined with a special "teardrop-shaped" grip cross-section and a "through-type" grip space design. Simultaneously, the interface plate 710 is cleverly placed at the tip of the clamping section, significantly reducing the thickness of the second end 200 to half that of the first end 100. This successfully solves the drawbacks of traditional products, such as top-heavy design, unstable grip, and limited interface layout. The detachable blade design and efficient gear transmission system ensure the product's practicality and trimming performance.

[0040] 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 laser head camera, characterized in that: It includes the fuselage and a trimmer head (400) located at one end of the fuselage. The fuselage includes: The first end (100) is used to connect the trimmer head (400), and there is a first mounting space (110) therein for mounting a gear set (800) that drives the trimmer head (400) to move. The second end (200) is disposed opposite to the first end (100), and a gripping space (500) for hand-held use is formed between the two, and a second mounting space (210) for placing the control circuit board (700) is provided therein. A clamping section (300) is connected between the first end (100) and the second end (200). Its outer contour is flat and can be clamped between any two adjacent fingers. A third mounting space (310) is provided inside the clamping section. A drive motor (600) is located in the third mounting space (310) and is electrically connected to the control circuit board (700). Its drive end is connected to the gear set (800) through a drive gear (610). Furthermore, the thickness of the second end (200) is less than the thickness of the first end (100).

2. The laser head machine according to claim 1, characterized in that: The clamping section (300) has a teardrop-shaped cross-section along its axial direction, with a tip (320) facing the gripping direction and an arc-shaped sidewall that gradually widens backward from the tip, and its profile dimensions smoothly increase along the finger insertion direction.

3. The bald head machine according to claim 2, characterized in that: The drive motor (600) is disposed within the third mounting space (310) on the side of the cross section of the clamping segment (300) away from the tip (320).

4. A laser head machine according to claim 2 or 3, characterized in that: The front end of the third installation space (310) is provided with an interface board (710), and the interface board (710) is electrically connected to the control circuit board (700) located in the second installation space (210).

5. A laser head machine according to claim 1, characterized in that: The trimmer head (400) includes a head support base and a plurality of head assemblies disposed on the head support base, which are divided into a central head assembly (410) and a plurality of circumferential head assemblies (420) disposed around the central head assembly (410).

6. A laser head machine according to claim 5, characterized in that: The circumferential cutter head assembly (420) has several protrusions (421) evenly distributed around its periphery.

7. A laser head machine according to claim 5, characterized in that: The gear set (800) includes a central gear (810) linked to the central cutter head assembly (410), a driven gear (820) linked to the circumferential cutter head assembly (420), and a plurality of pinions (830) meshing with the central gear (810) and the driven gear (820) respectively.

8. A laser head machine according to claim 1, characterized in that: The tip of the clamping section (300) has a rounded transition structure.

9. A laser head machine according to claim 1, characterized in that: The connection between the clamping section (300) and the first end (100) and / or the second end (200) is a rounded transition structure.

10. A laser head machine according to claim 1, characterized in that: The second installation space (210) also contains an ultra-thin battery.

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