Connecting structure of tool bit of hair clipper

Abstract

The utility model relates to the technical field of hair clippers, in particular to a hair clipper tool bit connecting structure which comprises a machine body and a shell, a U-shaped support is arranged on the machine body, connecting crankshafts used for driving the shell to rotate are installed at the two ends of the U-shaped support, the middle end of the U-shaped support is connected with the machine body, and a tool bit assembly is installed on the shell. A driving part for driving the tool bit assembly to work is arranged in the shell, the connecting crankshaft comprises fixed mounting sections which are arranged at the two ends and connected with the two ends of the U-shaped support, and a bent section used for avoiding the driving part is arranged between the fixed mounting sections; and the U-shaped bracket is used for enhancing the connection between the machine body and the shell, so that the stability of the device can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hair clippers, in particular to a connection structure of a hair clipper blade. Background Art

[0002] A hair clipper with publication number CN207736327U is disclosed, which includes a body, a cutter head connected to the body, and a charger for charging the body. The body includes a first half shell and a second half shell, which are connected to form a shell. The body also includes a connecting crankshaft arranged in the shell, a motor connected to the connecting crankshaft, and a power supply device connected to the motor. The connecting crankshaft is connected to the cutter head. A first waterproof ring is arranged between the first half shell and the second half shell. The motor and the power supply device are arranged in the circle of the first waterproof ring. A second waterproof ring for protecting the motor is arranged at the connection between the motor and the connecting crankshaft. The power supply device includes a rechargeable battery and a receiving coil electrically connected to the rechargeable battery. A transmitting coil is arranged in the charger, and the receiving coil and the transmitting coil charge the rechargeable battery through inductive coupling. With such a configuration, the hair clipper can be directly rinsed with water after use; it can be directly placed on the charger to realize wireless charging, which can make the hair clipper more convenient, clean and hygienic to use.

[0003] Although it discloses a hair clipper with a blade that rotates on a body, a connecting crankshaft is directly arranged on the shell to achieve rotation. However, such an arrangement does not have sufficient connection strength during use, which may cause deformation and affect use when subjected to increased external force. Utility Model Content

[0004] The technical problem to be solved by the utility model is that during the use of a hair clipper with a rotating blade head, the connection strength may be insufficient, resulting in inconvenience in use.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] First, a connection structure for a hair clipper cutter head is provided, comprising a body and a shell, wherein a U-shaped bracket is provided on the body, connecting crankshafts for driving the shell to rotate are installed at both ends of the U-shaped bracket, the middle end of the U-shaped bracket is connected to the body, a cutter head assembly is installed on the shell, a driving member for driving the cutter head assembly to work is provided in the shell, the connecting crankshaft comprises fixed installation sections arranged at both ends and connected to both ends of the U-shaped bracket, and a curved section for avoiding the driving member is provided between the fixed installation sections.

[0007] Furthermore, the shell is a spherical shell, and the rotation center of the connecting crankshaft passes through the center of the spherical shell; the spherical shape allows the shell to fit with the fuselage during rotation, ensuring that the device is more stable in use.

[0008] Furthermore, the cutter head assembly includes a first cutter head and a second cutter head, the first cutter head is integrally arranged with the shell, and the second cutter head is slidably connected to the first cutter head; the second cutter head slides relative to the first cutter head, thereby achieving the effect of cutting hair.

[0009] Furthermore, the driving member is a motor, and the output shaft of the motor is connected to the second cutter head for driving the second cutter head to move back and forth. Using the motor to drive the second cutter head to move back and forth makes it easy to install and has a low cost.

[0010] Furthermore, a power supply electrically connected to the motor is provided in the fuselage; the power supply provides electric power to the motor to ensure continuous and stable operation of the motor.

[0011] Furthermore, the fixed installation section and the bending section are integrally formed; the integrally formed connecting crankshaft is convenient to manufacture and improves work efficiency.

[0012] Furthermore, the fixed installation section is installed on the shell, and the cross section of the fixed installation section is rectangular; by utilizing the rectangular cross section, when the connected crankshaft rotates, the side surface can drive the shell to rotate synchronously.

[0013] Furthermore, a mounting plate for connecting to the fuselage is provided on the outer side of the corner of the middle end of the U-shaped bracket; the mounting plate is used to ensure that the U-shaped bracket is stably mounted on the fuselage, which is easy to disassemble and assemble, thereby improving the connection strength between the fuselage and the shell.

[0014] Furthermore, the mounting plate and the U-shaped bracket are integrally formed; the integrally formed U-shaped bracket and mounting plate are easy to manufacture and improve work efficiency.

[0015] Furthermore, a handle is installed on the connecting crankshaft; the setting of the handle can facilitate the user to smoothly drive the connecting crankshaft to rotate, thereby improving the use effect of the device.

[0016] The utility model has the following beneficial effects: the utility model utilizes a bracket to connect the fuselage and the shell, which can enhance the connection strength, is more stable when subjected to external force, is not easy to deform, has an anti-fall effect, and makes the device more stable when in use. At the same time, the setting of the mounting plate makes the device more convenient to assemble and disassemble, and facilitates maintenance. The setting of the bent section prevents interference during assembly, thereby improving the stability of the device. A closed-loop connection structure is formed between the mounting plate and the middle section of the U-shaped bracket and the fuselage, which can greatly improve the connection strength of the U-shaped bracket installed on the fuselage, making its connection more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 is a schematic diagram of the three-dimensional structure of this embodiment;

[0019] Figure 2 This is a schematic diagram of the explosion structure of this embodiment;

[0020] Figure 3 is a schematic diagram of the exploded structure of the shell of this embodiment;

[0021] Figure 4 This is a schematic diagram of the installation of the motor and the bracket of this embodiment;

[0022] Figure 5 is a schematic diagram of the installation of the bracket of this embodiment;

[0023] Figure 6 This is a schematic diagram of the handle installation structure of this embodiment. DETAILED DESCRIPTION

[0024] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0025] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The utility model provides a connection structure of a hair clipper blade, such as Figure 1 and Figure 2 As shown, it includes a body 10 and a shell 20, a U-shaped bracket 30 is installed on the body 10, a connecting crankshaft 40 is installed on the U-shaped bracket 30, a shell 20 is installed on the connecting crankshaft 40, a cutter head assembly is installed on the shell 20, and the shell 20 can rotate around the body 10 through the connecting crankshaft 40. In this embodiment, a motor 21 that drives the cutter head assembly to work is arranged in the shell 20, and the user trims the hair by holding the body 10 when using it. Specifically, the shell 20 is a spherical shell or a cylindrical shell.

[0029] Specifically, in this embodiment, the cutter head assembly includes a first cutter head 22 and a second cutter head 23 that are slidably connected, wherein a motor 21 is connected to the second cutter head 23, and the motor 21 is an eccentric motor. The eccentric motor drives the second cutter head 23 to reciprocate relative to the first cutter head 22, thereby cutting hair. The second cutter head 23 reciprocates relative to the first cutter head 22 along its length direction.

[0030] like Figure 2 and Figure 3 As shown, the fuselage 10 and the shell 20 are both formed by splicing two outer shells, wherein one end of the spliced ​​fuselage 10 is open, a bracket 30 is installed at the opening, a connecting crankshaft 40 is installed on the bracket 30, and the shell 20 is installed on the connecting crankshaft 40, and the side of the shell 20 is fitted with the opening of the fuselage 10, wherein a power supply is also installed in the fuselage 10, and the power supply is electrically connected to the motor 21, and a through hole is provided on the shell 20 to facilitate wiring to connect the power supply and the motor 21.

[0031] Specifically, in order to prevent interference in the installation between the connecting crankshaft 40 and the motor 21, the connecting crankshaft 40 includes a fixed installation section 41 coaxially arranged at both ends and a bent section 42 in the middle, wherein the fixed installation section 41 and the bent section 42 are integrally formed, and the side of the bent section 42 is in contact with the side of the motor 21. At the same time, the cross-section of the installation section 41 is rectangular and is connected to the shell 20. The connection between the installation section 41 and the U-shaped bracket 30 is circular. Since the shell 20 is formed by splicing two outer shells, when the two outer shells are spliced, the installation section 41 is connected to the shell 20, ensuring that after the shell 20 is spliced, the shell 20 can be driven to rotate when the installation section 41 is rotated.

[0032] Specifically, the cross-section of the mounting section 41 may also be a non-circular structure such as a triangle, a parallelogram or a prism, so as to ensure that the housing 20 can be driven to rotate when the mounting section 41 is rotated.

[0033] like Figure 4 and Figure 5 As shown, the two ends of the U-shaped bracket 30 are rotatably connected to the mounting section 41 respectively. The cross-section of the mounting section 41 at the position where the U-shaped bracket 30 is installed is circular, which plays the role of supporting the connecting crankshaft 40 and rotating the connecting crankshaft 40. The outer ends of the two corners of the U-shaped bracket 30 are integrally formed with mounting plates 31, which are connected to the fuselage 10 by means of the mounting plates 31. The mounting plates 31 are connected to the fuselage 10 by screws to achieve detachability and convenient disassembly and assembly. At the same time, a closed-loop connection structure is formed between the mounting plate 31 and the middle section of the U-shaped bracket 30 and the fuselage, which can greatly improve the connection strength of the U-shaped bracket 30 installed on the fuselage and make its connection more stable.

[0034] like Figure 2 and Figure 6 As shown, through holes 24 are provided at both ends of the U-shaped bracket 30 on the side of the fuselage 10, and the through holes 24 are used for the two ends of the U-shaped bracket 30 to pass through and connect with the connecting crankshaft 40. The cross-section of the through hole 24 is larger than the cross-section of the U-shaped bracket 30 to ensure that there is a certain margin when rotating. At the same time, a handle 25 is provided on the fixed installation section 41. By rotating the handle 25, the connecting crankshaft 40 can be driven to rotate, thereby driving the shell 20 to rotate synchronously.

[0035] It should be understood that the above description of the specific embodiments of the utility model is only for illustrating the technical route and features of the utility model, and its purpose is to enable those skilled in the art to understand the content of the utility model and implement it accordingly, but the utility model is not limited to the above specific implementation methods. All changes or modifications made within the scope of the claims of the utility model should be included in the protection scope of the utility model.

Claims

1. A connection structure for a hair clipper head, characterized in that: The invention comprises a body (10) and a shell (20), wherein a U-shaped bracket (30) is arranged on the body (10), and connecting crankshafts (40) for driving the shell (20) to rotate are installed at both ends of the U-shaped bracket (30), and the middle end of the U-shaped bracket (30) is connected to the body (10), and a cutter head assembly is installed on the shell (20), and a driving member for driving the cutter head assembly to work is arranged in the shell (20), and the connecting crankshaft (40) comprises fixed installation sections (41) arranged at both ends and connected to both ends of the U-shaped bracket (30), and a curved section (42) for avoiding the driving member is arranged between the fixed installation sections (41).

2. A connection structure for a hair clipper head according to claim 1, characterized in that: The housing (20) is a spherical housing, and the rotation center of the connecting crankshaft (40) passes through the center of the spherical housing.

3. A connection structure of a hair clipper head according to claim 1, characterized in that: The cutter head assembly comprises a first cutter head (22) and a second cutter head (23); the first cutter head (22) is integrally arranged with the housing (20), and the second cutter head (23) is slidably connected to the first cutter head (22).

4. A connection structure for a hair clipper head according to claim 3, characterized in that: The driving member is a motor (21), and the output shaft of the motor (21) is connected to the second cutter head (23) and is used to drive the second cutter head (23) to move back and forth.

5. A connection structure for a hair clipper head according to claim 4, characterized in that: A power source electrically connected to the motor (21) is arranged in the body (10).

6. A connection structure for a hair clipper head according to claim 1, characterized in that: The fixed installation section (41) and the bending section (42) are integrally formed.

7. A hair clipper blade connection structure according to claim 1, characterized in that: The fixed installation section (41) is installed on the housing (20), and the cross section of the fixed installation section (41) is rectangular.

8. The connection structure of a hair clipper head according to claim 1, characterized in that: The outer sides of the corners of the middle ends of the U-shaped brackets (30) are provided with mounting plates (31) for connecting with the fuselage (10).

9. A connection structure for a hair clipper head according to claim 8, characterized in that: The mounting plate (31) and the U-shaped bracket (30) are integrally formed.

10. The connection structure of a hair clipper head according to claim 1, characterized in that: A handle (25) is mounted on the connecting crankshaft (40).

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