Hand-held appliance with a tool bit having a drive structure

Abstract

This utility model discloses a handheld device with a built-in drive structure for the blade head, including a main body and a blade head unit. The blade head unit is detachably connected to the main body. The blade head unit includes: a shell with a hollow inner cavity and an opening at the upper end of the shell communicating with the hollow inner cavity; a blade assembly arranged within the hollow inner cavity, with a portion of the blade assembly extending through the opening to the upper end of the shell or flush with the upper surface of the shell; and a drive assembly arranged within the hollow inner cavity, used to drive the blade assembly to cut hair, with its output end connected to the blade assembly. This utility model has a reasonable structural design. By setting the blade head unit to include a shell, a blade assembly, and a drive assembly, and by placing the drive assembly within the blade head unit, the maintainability and flexibility of the handheld device are improved, as is the convenience of cleaning and maintaining the blade head unit. Furthermore, the blade head unit is detachably connected to the main body.

Description

Technical Field

[0001] This utility model relates to the field of handheld devices, and in particular to a handheld device with a self-driving structure for the blade head. Background Technology

[0002] In the field of handheld personal care devices, existing technologies present several problems. A common approach is to house the drive unit within the main body, connecting the blades via a transmission mechanism. This makes blade removal difficult. Repairs require disassembling the entire device, demanding advanced technical skills and incurring high costs, resulting in poor maintainability. Cleaning the blades after use is inconvenient, and residual dirt can easily breed bacteria. Furthermore, because the drive unit is concentrated in the main body, blade functionality is limited. Users cannot quickly switch to different blades as needed, often requiring the purchase of multiple devices, increasing costs and wasting resources. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a handheld device with a built-in drive structure for the blade head, in light of the current state of the technology.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows: a handheld device with a self-driving structure for the blade head, comprising a main body and a blade head unit, wherein the blade head unit is detachably connected to the main body, and the blade head unit includes:

[0005] The outer shell has a hollow inner cavity, and the upper end of the outer shell is provided with an opening communicating with the hollow inner cavity;

[0006] A blade assembly, wherein the blade assembly is arranged in a hollow inner cavity, and a portion of the blade assembly extends through an opening to the upper end of the housing or is flush with the upper surface of the housing;

[0007] A drive assembly is arranged inside a hollow cavity. The drive assembly is used to drive the blade assembly to cut hair. The output end of the drive assembly is connected to the blade assembly.

[0008] The effects achieved by the above components are as follows: By setting the detachable blade unit to be connected to the main body, and the blade unit including the outer shell, blade assembly and drive assembly, the maintainability and flexibility of the handheld device are improved by setting the drive assembly inside the blade unit, the convenience of cleaning and maintenance of the blade unit is enhanced, the detachable blade unit can be easily removed from the main body after use, and the interior can be thoroughly cleaned to prevent dirt and hair residue from breeding bacteria and protect the user's health. In case of blade head failure, it is not necessary to disassemble the entire handheld device, reducing the difficulty and cost of repair; at the same time, different functional blade units can be replaced to meet diverse care needs such as shaving, trimming nose hair or sideburns, improving the versatility of the handheld device.

[0009] Preferably, the blade assembly includes a shaving blade passing through the opening and a fixed support disposed inside the upper housing and connected to the shaving blade. The shaving blade includes an outer foil and an inner blade disposed inside the outer foil, and the shaving blade has at least one component.

[0010] The aforementioned components achieve the following effects: by setting the blade assembly including a shaving blade and a fixed support, and the shaving blade including an outer foil and an inner blade, with at least one shaving blade, the shaving effect is guaranteed. The outer foil guides the beard and prevents the skin from being scratched by the inner blade. The inner blade works in conjunction with the outer foil to cut. Multiple shaving blades can meet the needs of different areas and hair densities, improving efficiency and quality. At the same time, stability is ensured. The fixed support firmly connects the shaving blade to the upper housing, preventing the blade from shaking or shifting during operation, ensuring a consistent and reliable shaving effect.

[0011] Preferably, the driving component includes a motor, and the inner tool is driven by the output end of the motor to reciprocate along the inner edge of the outer tool.

[0012] The effects achieved by the above components are as follows: By setting the drive assembly including a motor, efficient power transmission is achieved. The drive assembly is placed inside the shaving head unit, and the output end is directly connected to the internal blade, reducing energy loss and allowing the internal blade to obtain strong and stable power, enhancing shaving ability and improving results. The drive assembly also includes a fixing bracket set at the upper end of the motor and a bracket set at the lower end of the motor, which further enhances drive stability. The fixing bracket supports the motor and the bracket set, and the bracket set stabilizes the motor, keeping the drive assembly stable inside the shaving head, reducing vibration and noise, and extending service life.

[0013] Preferably, the outer casing also includes a connection module that is electrically connected to the main body of the device.

[0014] The aforementioned components achieve the following effects: by setting up a connection module, the replacement of the cutter head unit is facilitated, allowing users to easily disassemble and install different functional cutter head units to meet diverse needs. The operation is simple and quick, improving the user experience. At the same time, it ensures the stability of the electrical connection, provides stable power transmission to the motor, and guarantees the normal operation of the cutter head unit.

[0015] Preferably, the connection module includes a mounting base arranged at the lower end of the housing, a first connector is provided in the mounting base, and a second connector is provided on the main body of the machine body to cooperate with and connect with the first connector.

[0016] The effects achieved by the above components are as follows: by setting the connection module including a mounting base, with a first connector inside the mounting base, and a second connector on the main body that mates with the first connector, a quick electrical connection is achieved. When the cutter head unit is installed, the first connector and the second connector quickly and accurately establish a connection without complicated wiring, improving ease of use and ensuring reliable connection, reducing contact failures; it also improves the versatility of the handheld device, making it easier to match different functional cutter head units with the main body.

[0017] Preferably, a handheld device with a built-in drive structure for the blade head includes a main body and a blade head unit, wherein the blade head unit is detachably connected to the main body and includes:

[0018] The outer shell has a hollow inner cavity, and the upper end of the outer shell is provided with at least one opening communicating with the hollow inner cavity;

[0019] A blade assembly, wherein the blade assembly is arranged in a hollow inner cavity, and a portion of the blade assembly extends through an opening to the upper end of the housing or is flush with the upper surface of the housing;

[0020] A drive assembly is arranged inside a hollow cavity. The drive assembly is used to drive the blade assembly to cut hair. The output end of the drive assembly is connected to the blade assembly.

[0021] Preferably, the blade assembly includes an outer blade sheath installed in the opening, an inner blade installed in the outer blade sheath, and a transmission component connecting the inner blade to the drive assembly, wherein the inner blade is connected to the drive assembly via the transmission component.

[0022] Preferably, the drive assembly includes a motor and a transmission wheel arranged on the output end of the motor, the transmission wheel being connected to a transmission component.

[0023] Compared with existing technologies, the advantages of this invention are as follows: By setting the shaving head unit to include a housing, a blade assembly, and a drive assembly, and by placing the drive assembly within the shaving head unit, the maintainability and flexibility of the handheld device are improved, and the convenience of cleaning and maintaining the shaving head unit is enhanced. The shaving head unit is detachably connected to the main body. In the blade assembly, the cooperation between the outer foil and the inner blade, along with the fixing support, ensures shaving performance and component stability. The drive assembly is built into the shaving head unit, and its output end is directly connected to the inner blade, achieving efficient power transmission and enhancing drive stability. The connection module facilitates shaving head replacement and ensures stable electrical connections. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2This is a cross-sectional structural diagram of the present invention;

[0026] Figure 3 This is an exploded structural diagram of the present invention;

[0027] Figure 4 This is an exploded structural diagram of the cutter head unit of this utility model;

[0028] Figure 5 This is a cross-sectional structural diagram of the cutter head unit of this utility model.

[0029] Reference numerals: 1. Main body; 2. Blade unit; 3. Outer shell; 4. Blade assembly; 5. Drive assembly; 6. Opening; 7. Shaver; 8. Fixing support; 9. Outer foil; 10. Inner blade; 11. Fixing frame; 12. Motor; 13. Bracket base; 14. Output end; 15. Connecting module; 16. Mounting base; 17. First connecting member; 18. Second connecting member; 19. Transmission component; 20. Transmission wheel.

[0030] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0031] 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 each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0032] Furthermore, in addition to indicating orientation or positional relationship, the aforementioned terms may also be used to indicate other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. For those skilled in the art, the specific meaning of these terms in this utility model can be understood according to the specific circumstances.

[0033] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral structures; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two devices, components, or parts. The connection methods described herein are existing technologies without any modifications and are common knowledge to those skilled in the art. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0035] In this embodiment 1,

[0036] like Figures 1 to 5 As shown, this utility model provides a handheld device with a built-in drive structure for the blade head, including a main body 1 and a blade head unit 2. The blade head unit 2 is detachably connected to the main body 1, and the blade head unit 2 includes:

[0037] The outer shell 3 has a hollow inner cavity, and the upper end of the outer shell 3 is provided with an opening 6 communicating with the hollow inner cavity;

[0038] Blade assembly 4, which is arranged in the hollow inner cavity, and a portion of the blade assembly 4 extends through the opening 6 to the upper end of the outer shell 3 or is flush with the upper surface of the outer shell 3.

[0039] The drive assembly 5 is arranged in the hollow inner cavity and is used to drive the blade assembly 4 to cut the hair. The output end 14 of the drive assembly 5 is connected to the blade assembly 4.

[0040] The blade unit 2 is detachably connected to the main body 1. The blade unit 2 includes a housing 3, a blade assembly 4, and a drive assembly 5. By placing the drive assembly 5 inside the blade unit 2, the maintainability and flexibility of the handheld device are improved, and the convenience of cleaning and maintaining the blade unit 2 is enhanced. The detachable blade unit 2 can be easily removed from the main body after use, allowing for thorough cleaning of the interior and preventing the growth of bacteria from dirt and hair residue, thus protecting user health. In case of blade head failure, it is not necessary to disassemble the entire handheld device, reducing repair difficulty and cost. At the same time, different functional blade units 2 can be replaced to meet diverse care needs such as shaving, trimming nose hair, or sideburns, improving the versatility of the handheld device.

[0041] The blade assembly 4 includes a shaving blade 7 passing through the opening 6 and a fixed support 8 disposed inside the upper housing 3 and connected to the shaving blade 7. The shaving blade 7 includes an outer blade net 9 and an inner blade 10 disposed inside the outer blade net 9. There is at least one shaving blade 7.

[0042] By setting the blade assembly 4 to include a shaving blade 7 and a fixing support 8, and the shaving blade 7 including an outer foil 9 and an inner blade 10, and having at least one shaving blade 7, the shaving effect is guaranteed. The outer foil 9 guides the beard into the blade and prevents the skin from being scratched by the inner blade 10. The inner blade 10 and the outer foil 9 work together to cut the hair. Multiple shaving blades 7 can meet the needs of different areas and hair densities, improving efficiency and quality. At the same time, stability is ensured. The fixing support 8 securely connects the shaving blade 7 to the upper housing 3, preventing the blade from shaking or shifting during operation, and ensuring a consistent and reliable shaving effect.

[0043] The drive assembly 5 includes a motor 12, and the inner cutter 10 is driven to reciprocate along the inner edge of the outer cutter through the output end 14 of the motor 12.

[0044] By incorporating a motor 12 into the drive assembly 5, efficient power transmission is achieved. The drive assembly 5 is placed inside the shaving head unit 2, and its output end 14 is directly connected to the inner blade 10, reducing energy loss and providing the inner blade 10 with strong and stable power, enhancing shaving ability and improving results. The drive assembly 5 also includes a fixing bracket 11 located at the upper end of the motor 12 and a bracket seat 13 located at the lower end of the motor 12, which further enhances drive stability. The fixing bracket 11 supports the motor 12 and the bracket seat 13, and the bracket seat 13 stabilizes the motor 12, keeping the drive assembly 5 stable inside the shaving head, reducing vibration and noise, and extending service life.

[0045] The outer casing 3 also includes a connection module 15 that is electrically connected to the main body 1.

[0046] By setting up the connection module 15, the replacement of the cutter head unit 2 is facilitated. Users can easily disassemble and install different functional cutter head units 2 to meet diverse needs. The operation is simple and quick, improving the user experience. At the same time, it ensures the stability of the electrical connection, stably transmits power to the motor 12, and ensures the normal operation of the cutter head unit 2.

[0047] The connection module 15 includes a mounting base 16 arranged at the lower end of the outer casing 3. A first connector 17 is provided in the mounting base 16, and a second connector is provided on the main body 1 to cooperate with and connect with the first connector 17.

[0048] By setting the connection module 15 to include a mounting base 16, a first connector 17 is provided in the mounting base 16, and a second connector is provided on the main body 1 to cooperate with the first connector 17, a quick electrical connection is achieved. When the cutter head unit 2 is installed, the first connector 17 and the second connector are quickly and accurately connected without complicated wiring, improving ease of use and ensuring reliable connection, reducing contact failures; it also improves the versatility of the handheld device and facilitates the matching of cutter head units 2 with different functions with the main body 1.

[0049] A handheld device with a built-in drive structure for the blade head includes a main body 1 and a blade head unit 2. The blade head unit 2 is detachably connected to the main body 1 and includes:

[0050] The outer shell 3 has a hollow inner cavity, and the upper end of the outer shell 3 is provided with at least one opening 6 communicating with the hollow inner cavity;

[0051] Blade assembly 4, which is arranged in the hollow inner cavity, and a portion of the blade assembly 4 extends through the opening 6 to the upper end of the outer shell 3 or is flush with the upper surface of the outer shell 3.

[0052] The drive assembly 5 is arranged in the hollow inner cavity and is used to drive the blade assembly 4 to cut the hair. The output end 14 of the drive assembly 5 is connected to the blade assembly 4.

[0053] The blade assembly 4 includes an outer blade net 9 installed in the opening 6, an inner blade 10 installed in the outer blade net 9, and a transmission member 19 that connects the inner blade 10 and the drive assembly 5 respectively. The inner blade 10 is connected to the drive assembly 5 through the transmission member 19.

[0054] The drive assembly 5 includes a motor 12 and a transmission wheel 20 arranged on the output end 14 of the motor 12. The transmission wheel 20 is connected to the transmission component 19.

[0055] In this embodiment 2,

[0056] like Figures 1 to 5As shown, this utility model, by setting the shaving head unit 2, includes a housing 3, a blade assembly 4, and a drive assembly 5, improves the maintainability and flexibility of the handheld device and enhances the convenience of cleaning and maintenance of the shaving head unit 2 by placing the drive assembly 5 inside the shaving head unit 2. The shaving head unit 2 is detachably connected to the main body 1. In the blade assembly 4, the outer foil 9 cooperates with the inner blade 10, and the fixing support 8 ensures shaving effect and component stability. The drive assembly 5 is built into the shaving head unit 2, and its output end 14 is directly connected to the inner blade 10, achieving efficient power transmission and enhancing drive stability. The connection module 15 facilitates shaving head replacement and ensures stable electrical connection.

[0057] In this embodiment 3,

[0058] like Figures 1 to 5 As shown, during shaving, the outer foil 9 is close to the skin, guiding the beard into its fine mesh. The motor 12 starts, and the inner blade 10, driven by the output end 14, moves relatively left and right along the outer foil 9, cutting the beard that has entered the mesh, thus completing the shaving action. The fixing bracket 8 in the blade assembly 4 tightly connects the shaving blade 7 to the upper outer shell 3, ensuring the stability of the shaving blade 7 during operation, thereby ensuring the consistency and reliability of the shaving effect. The main body 1 contains a power unit, which can be a battery or a power adapter. If a battery is used, it powers the entire device with its stored electrical energy; if a power adapter is used, it converts mains power into electrical energy suitable for the device. The electrical energy generated by the power unit is transmitted to the first connector 17 via the second connector on the main body 1. Since the first connector 17 is electrically connected to the motor 12, the electrical energy is thus transferred to the motor 12 in the drive assembly 5, providing it with working power.

[0059] In this embodiment 3,

[0060] like Figure 4 and Figure 5 As shown, when the handheld device is turned on, the drive assembly 5, installed in the hollow cavity of the housing 3 of the blade unit 2, begins to work. The motor 12 in the drive assembly 5 starts, and the transmission wheel 20 at the output end 14 of the motor 12 rotates accordingly. Since the transmission wheel 20 is connected to the transmission component 19 in the blade assembly 4, the rotation of the transmission wheel 20 is transmitted to the inner blade 10 through the transmission component 19. The inner blade 10 is installed in the outer blade net 9, which is installed in the opening 6 of the housing 3. Driven by the power, the inner blade 10 begins to move, cooperating with the outer blade net 9. The outer blade net 9 guides the hair in and prevents the skin from being scratched by the inner blade 10, while the inner blade 10 performs a cutting action under the power transmitted by the transmission component 19, thereby achieving the cutting of the hair.

[0061] In the description of this specification, references are made to the terms "one embodiment", "some embodiments", "example", "specific example".

[0062] The descriptions using terms such as "example" or "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0063] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, welding, and bonding that are mature in the existing technology, and will not be described in detail here.

[0064] The above description is only a preferred embodiment of this utility model. For those skilled in the art, various modifications and variations can be made in the specific implementation and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A handheld device with a self-driving structure for the blade head, comprising a main body (1) and a blade head unit (2), wherein the blade head unit (2) is detachably connected to the main body (1), characterized in that: The cutter head unit (2) includes: The outer shell (3) has a hollow inner cavity, and the upper end of the outer shell (3) is provided with an opening (6) communicating with the hollow inner cavity. Blade assembly (4), the blade assembly (4) is arranged in the hollow inner cavity, and part of the blade assembly (4) extends through the opening (6) to the upper end of the outer shell (3) or is flush with the upper end surface of the outer shell (3); The drive assembly (5) is arranged in the hollow cavity. The drive assembly (5) is used to drive the blade assembly (4) to cut the hair. The output end (14) of the drive assembly (5) is connected to the blade assembly (4).

2. A handheld device with a self-driving structure for the blade head according to claim 1, characterized in that: The blade assembly (4) includes a shaving blade (7) passing through the opening (6) and a fixed support (8) connected to the shaving blade (7) in the hollow inner cavity. The shaving blade (7) includes an outer blade net (9) and an inner blade (10) disposed in the outer blade net (9). The shaving blade (7) has at least one blade.

3. A handheld device with a self-driving structure for the blade head according to claim 2, characterized in that: The drive assembly (5) includes a motor (12), and the inner cutter (10) is driven by the output end (14) of the motor (12) to reciprocate along the inner edge of the outer cutter.

4. A handheld device with a self-driving structure for the blade head according to claim 1, characterized in that: The outer shell (3) also includes a connection module (15) that is electrically connected to the fuselage body (1).

5. A handheld device with a self-driving structure for the blade head according to claim 4, characterized in that: The connection module (15) includes a mounting base (16) arranged at the lower end of the outer shell (3), a first connector (17) is provided in the mounting base (16), and a second connector (18) is provided on the body (1) to cooperate with and connect with the first connector (17).

6. A handheld device with a self-driving structure for the blade head, comprising a main body (1) and a blade head unit (2), wherein the blade head unit (2) is detachably connected to the main body (1), characterized in that: The cutter head unit (2) includes: The outer shell (3) has a hollow inner cavity, and the upper end of the outer shell (3) is provided with at least one opening (6) communicating with the hollow inner cavity. Blade assembly (4), the blade assembly (4) is arranged in the hollow inner cavity, and part of the blade assembly (4) extends through the opening (6) to the upper end of the outer shell (3) or is flush with the upper end surface of the outer shell (3); The drive assembly (5) is arranged in the hollow cavity. The drive assembly (5) is used to drive the blade assembly (4) to cut the hair. The output end (14) of the drive assembly (5) is connected to the blade assembly (4).

7. A handheld device with a self-driving structure for the blade head according to claim 6, characterized in that: The blade assembly (4) includes an outer blade net (9) installed in the opening (6), an inner blade (10) installed in the outer blade net (9), and a transmission member (19) connecting the inner blade (10) and the drive assembly (5) respectively. The inner blade (10) is connected to the drive assembly (5) through the transmission member (19).

8. A handheld device with a self-driving structure for the blade head according to claim 7, characterized in that: The drive assembly (5) includes a motor (12) and a drive wheel (20) arranged on the output end (14) of the motor (12), the drive wheel (20) being connected to the drive member (19) in a transmission.

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