An electric clipper

Abstract

This utility model belongs to the field of electric clipper technology, specifically relating to an electric clipper, including an upper cover and a bottom cover. The upper cover and the bottom cover cooperate to form a receiving space. A panel is provided at the front end of the upper cover, and a cutter head assembly is provided at the front side of the bottom cover. A swing arm shaft is provided at the front end of the bottom cover, and a swing arm is sleeved on the swing arm shaft. The front end of the swing arm is connected to the cutter head assembly, and the rear end of the swing arm is connected to a drive mechanism for driving its left and right swing. A swing arm cap is provided at the top end of the swing arm shaft, and the bottom of the swing arm cap abuts against the top of the swing arm. The two sides of the swing arm cap are fixed to the bottom cover by bolts. By sleeved on the swing arm shaft on the bottom cover, with the swing arm cap pressing down on the top of the swing arm and the top end of the swing arm shaft embedded in it, and the two sides of the swing arm cap being fixed to the bottom cover by bolts, the swing arm shaft and the swing arm are fixed to the bottom cover in a sandwich manner, making the swing arm swing more stable and easier to replace without disassembling the whole machine for replacement.

Description

Technical Field

[0001] This utility model belongs to the field of electric clipper technology, specifically relating to an electric clipper. Background Technology

[0002] Electric clippers, as a core tool for hairdressing, styling, and pet grooming, have seen their technological advancements consistently focused on power efficiency, cutting precision, and user experience. Reciprocating electric clippers, with their compact structure and powerful motor, dominate the market. However, in existing technologies, the replacement efficiency and maintenance costs of the lever, a key component for power transmission, have become critical pain points limiting product lifespan and user experience.

[0003] Traditional electric clipper arms are typically fixed to the base using oil-impregnated bearings or riveting. For example, a rigid connection between the arm and base via an oil-impregnated bearing requires specialized tools to disassemble the base and access the arm. This design necessitates complete disassembly of the cutter head assembly for arm replacement, requiring additional tools and a thorough understanding of the product's structure. Furthermore, improper handling can easily lead to base deformation or bearing damage, resulting in low maintenance efficiency, high costs, and a short product lifespan. Summary of the Invention

[0004] I. Technical problems to be solved

[0005] This utility model addresses the aforementioned deficiencies in the existing technology by proposing an electric clipper that solves the problems of low maintenance efficiency, high cost, and short lifespan caused by the need to disassemble the entire machine to replace the swing arm.

[0006] II. Technical Solution

[0007] To solve the above-mentioned technical problems, the present invention provides an electric hair clipper, including an upper cover and a bottom cover, which cooperate to form a receiving space. A panel is provided at the front end of the upper cover, a blade assembly is provided at the front side of the bottom cover, a rocker arm shaft is provided at the front end of the bottom cover, a rocker arm is sleeved on the rocker arm shaft, the front end of the rocker arm is connected to the blade assembly, and a drive mechanism for driving the rocker arm to swing left and right is connected to the rear end of the rocker arm. A rocker arm cap is provided at the top end of the rocker arm shaft, the bottom of the rocker arm cap abuts against the top of the rocker arm, and the two sides of the rocker arm cap are fixedly connected to the bottom cover by bolts.

[0008] Preferably, the drive mechanism includes a rotary motor disposed inside the accommodating space, the output end of the rotary motor is connected to an eccentric shaft, and a rotary wheel connected to the rear end of the rocker arm is disposed on the eccentric shaft.

[0009] Preferably, the rocker arm includes a rocker arm body sleeved on the rocker arm shaft, the front end of the rocker arm body is provided with a connecting rod connected to the cutter head assembly, and the rear end of the rocker arm body is provided with a U-shaped connecting part that contacts the rotating wheel. The rotating wheel is connected to the U-shaped connecting part in a transmission manner. Specifically, the rotating wheel is oscillatingly connected to the two sides inside the U-shaped connecting part.

[0010] Preferably, the cutter head assembly includes a bottom blade, a movable blade connected to the bottom blade, a connecting groove on the movable blade that matches the front end of the connecting rod, a first spring plate connected to the movable blade, a nylon strip between one end of the first spring plate and the movable blade, and a locking mechanism connected to the other end of the first spring plate. The locking mechanism is fixedly mounted on the bottom blade by bolts.

[0011] Preferably, the locking mechanism includes a main body seat disposed on the bottom blade, a pin disposed on the main body seat, a locking spring sleeved on the pin, a lock buckle connected to one end of the locking spring, and a hinge block connected to the other end of the locking spring.

[0012] Preferably, a positioning block is provided between the main body seat and the hinge block, a latch is provided at the top of the main body seat, and a second spring sheet is provided between the main body seat and the latch. One end of the second spring sheet is riveted to the main body seat, and the bottom of the other end of the second spring sheet abuts against the top of the hinge block.

[0013] Preferably, the bottom of the panel is provided with a buckle, and the top cover is provided with a slot that matches the buckle.

[0014] Preferably, a battery is installed inside the space formed by the top cover and the bottom cover, a charging interface is provided at the rear end of the bottom cover, and a gear switch is provided on the top cover.

[0015] III. Beneficial Effects

[0016] Compared with the prior art, this utility model fixes the swing arm shaft and the swing arm to the bottom cover by fitting the swing arm shaft onto the bottom cover, with a swing arm cap pressing down on the top of the swing arm shaft and the top of the swing arm shaft embedded inside it. The two sides of the swing arm cap are fixed to the bottom cover by bolts, forming a sandwich-like manner to fix the swing arm shaft and the swing arm to the bottom cover. This makes the swing arm swing more stable, easier to replace, and eliminates the need to disassemble the whole machine for replacement. It also has high maintenance efficiency, low cost, and longer service life. Attached Figure Description

[0017] Figure 1 A schematic diagram of the three-dimensional structure of an electric clipper. Figure 1 .

[0018] Figure 2 A schematic diagram of the three-dimensional structure of an electric clipper. Figure 2 .

[0019] Figure 3 This is a schematic diagram of the internal three-dimensional structure of an electric clipper.

[0020] Figure 4 This is an exploded view of the internal three-dimensional structure of an electric clipper.

[0021] Figure 5 This is a cross-sectional view of an electric clipper.

[0022] Figure 6 This is a three-dimensional structural diagram of the blade assembly of an electric clipper.

[0023] Figure 7 This is a cross-sectional view of the blade assembly of an electric clipper.

[0024] Figure 8 This is a three-dimensional structural diagram of the locking mechanism of an electric clipper.

[0025] Figure 9 This is an exploded three-dimensional diagram of the locking mechanism of an electric clipper.

[0026] In the picture:

[0027] 1 is the top cover; 2 is the bottom cover; 21 is the charging interface; 3 is the panel; 31 is the buckle; 32 is the slot; 4 is the blade assembly; 41 is the bottom blade; 42 is the moving blade; 43 is the connecting groove; 44 is the first spring plate; 45 is the nylon strip; 46 is the locking mechanism; 461 is the main body base; 462 is the pin; 463 is the locking spring; 464 is the buckle; 465 is the hinge block; 466 is the positioning block; 467 is the second spring plate; 5 is the rocker arm shaft; 6 is the rocker arm; 61 is the rocker arm body; 62 is the connecting rod; 63 is the U-shaped connecting part; 7 is the drive mechanism; 71 is the rotary motor; 72 is the eccentric shaft; 73 is the rotating wheel; 8 is the rocker arm cap; 9 is the gear switch. Detailed Implementation

[0028] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but should not be used to limit the scope of this utility model. Example 1

[0029] Combination Figure 1 , Figure 2 , Figure 3 As shown, the electric clipper of this embodiment includes an upper cover 1 and a bottom cover 2. The upper cover 1 and the bottom cover 2 cooperate to form a receiving space. A panel 3 is provided at the front end of the upper cover 1. A blade assembly 4 is provided at the front side of the bottom cover 2. A swing arm shaft 5 is provided at the front end of the bottom cover 2. A swing arm 6 is sleeved on the swing arm shaft 5. The front end of the swing arm 6 is connected to the blade assembly 4. A drive mechanism 7 for driving the swing arm 6 to swing left and right is connected to the rear end of the swing arm 6. A swing arm cap 8 is provided at the top end of the swing arm shaft 5. The bottom of the swing arm cap 8 abuts against the top of the swing arm 6. The two sides of the swing arm cap 8 are fixedly connected to the bottom cover 2 by bolts.

[0030] The upper cover 1 and the bottom cover 2 work together to form a housing space, providing installation and protection for other internal components of the electric hair clipper. A panel 3 is located at the front of the upper cover 1, serving decorative, protective, and auxiliary positioning functions. The cutter head assembly 4 is located on the front side of the bottom cover 2, directly contacting the hair being trimmed for cutting. A swing arm shaft 5 is located at the front of the bottom cover 2, serving as the rotation axis for the swing arm 6. The swing arm 6 is fitted onto the swing arm shaft 5, with its front end connected to the cutter head assembly 4 and its rear end connected to the drive mechanism 7. The swing arm 6 transmits power to the drive mechanism 7 and drives the cutter head assembly 4, converting the rotation or reciprocating motion of the drive mechanism 7 into the left-right swinging motion of the cutter head assembly 4. A swing arm cap 8 covers the top of the swing arm shaft 5, with its bottom abutting against the top of the swing arm 6, and its sides are fixedly connected to the bottom cover 2 by bolts. The swing arm cap 8 mainly serves to fix the position of the swing arm 6 on the swing arm shaft 5, preventing the swing arm 6 from falling off the swing arm shaft 5 during swinging and ensuring the stability of the swing arm 6's movement.

[0031] The drive mechanism 7 is connected to the rear end of the swing arm 6 and is used to drive the swing arm 6 to swing left and right. Power is transmitted to the cutter head assembly 4 via the swing arm 6, enabling the cutter head assembly 4 to perform the cutting action. The drive mechanism 7 generates power and transmits it to the rear end of the connected swing arm 6, driving the swing arm 6 to swing left and right around the swing arm axis 5. Since the front end of the swing arm 6 is connected to the cutter head assembly 4, the left and right swing of the swing arm 6 will drive the cutter head assembly 4 to swing left and right synchronously. During the left and right swing of the cutter head assembly 4, it comes into contact with the hair being trimmed, achieving the hair cutting function. At the same time, the swing arm cap 8, through its fixed connection with the bottom cover 2, securely restricts the swing arm 6 to the swing arm axis 5, ensuring that the swing arm 6 is accurately positioned and moves stably during the swing, thereby ensuring that the cutter head assembly 4 can complete the cutting work normally and effectively.

[0032] Combination Figure 4 As shown, the drive mechanism 7 includes a rotary motor 71 disposed within the accommodating space. The output end of the rotary motor 71 is connected to an eccentric shaft 72, and a rotating wheel 73, connected to the rear end of the rocker arm 6, is mounted on the eccentric shaft 72. Specifically, the drive mechanism 7 is disposed within the accommodating space formed by the cooperation of the upper cover 1 and the bottom cover 2. The eccentric shaft 72 is a special type of shaft whose axis does not coincide with the center of rotation, causing eccentric motion when the rotary motor 71 drives the eccentric shaft 72 to rotate. The rotating wheel 73 is mounted on the eccentric shaft 72 and connected to the rear end of the rocker arm 6. The rotating wheel 73 serves to transmit and convert power, transmitting the eccentric rotational motion of the eccentric shaft 72 to the rocker arm 6, enabling the rocker arm 6 to move in a specific manner.

[0033] The rotating wheel 73 is connected to the rear end of the pendulum rod 6. The eccentric rotation of the rotating wheel 73 will cause the pendulum rod 6 to swing left and right around the pendulum rod axis 5. Specifically, during the rotation of the rotating wheel 73, the connection point between its different positions and the rear end of the pendulum rod 6 will change position with the rotation, thereby applying forces in different directions to the pendulum rod 6, causing the pendulum rod 6 to swing left and right around the pendulum rod axis 5.

[0034] The front end of the swing arm 6 is connected to the blade assembly 4, so the left and right swing of the swing arm 6 will drive the blade assembly 4 to swing left and right synchronously. When the blade assembly 4 swings left and right, its blade part contacts the hair being trimmed, and the hair is cut through rapid reciprocating motion, thereby achieving the trimming function of electric clippers. The swing arm 6 includes a swing arm body 61 sleeved on the swing arm shaft 5. The front end of the swing arm body 61 is provided with a connecting rod 62 connected to the blade assembly 4, and the rear end of the swing arm body 61 is provided with a U-shaped connecting part 63 that contacts the rotating wheel 73. The rotating wheel 73 is oscillatingly connected to the two sides inside the U-shaped connecting part 63. The swing arm body 61 is sleeved on the swing arm shaft 5 and can rotate around the swing arm shaft 5. The swing arm shaft 5 provides a stable rotation center for the swing arm body 61, so that the swing motion of the swing arm 6 has an accurate trajectory and positioning. The connecting rod 62 is located at the front end of the swing arm body 61 and is connected to the blade assembly 4. The connecting rod 62 transmits the swing motion of the swing arm body 61 to the cutter head assembly 4, so that the cutter head assembly 4 can move together with the swing arm 6, thereby realizing the shearing function.

[0035] The U-shaped connecting part 63 is located at the rear end of the rocker arm body 61 and has a U-shaped structure. The U-shaped connecting part 63 is the key part that contacts and connects with the rotating wheel 73. The inner sides of the U-shaped connecting part 63 are oscillatingly connected to the rotating wheel 73, allowing the rotating wheel 73 to drive the U-shaped connecting part 63 during rotation, thereby causing the entire rocker arm 6 to oscillate. During eccentric rotation, the rotating wheel 73 interacts with the inner sides of the U-shaped connecting part 63 at the rear end of the rocker arm 6. This causes the U-shaped connecting part 63 to drive the rocker arm body 61 to oscillate left and right around the rocker arm axis 5. The connecting rod 62 at the front end of the rocker arm body 61 is connected to the cutter head assembly 4. When the rocker arm body 61 oscillates left and right, the connecting rod 62 transmits this oscillating motion to the cutter head assembly 4, causing the cutter head assembly 4 to oscillate left and right along with the rocker arm 6.

[0036] Combination Figures 6-9As shown, the blade assembly 4 includes a bottom blade 41, on which a movable blade 42 is connected. The movable blade 42 has a connecting groove 43 that matches the front end of the connecting rod 62. A first spring plate 44 is connected to the movable blade 42. A nylon strip 45 is provided between one end of the first spring plate 44 and the movable blade 42, and a locking mechanism 46 is connected to the other end of the first spring plate 44. The locking mechanism 46 is fixedly installed on the bottom blade 41 by bolts. The bottom blade 41 serves as the basic component of the blade assembly 4, providing mounting support for other components. The bottom blade 41 has a flat and sharp cutting edge and is the fixed part of the blade assembly 4 that enables the cutting function. It works in conjunction with the movable blade 42 to trim hair.

[0037] The movable blade 42 is mounted on the bottom blade 41. The movable blade 42 has a connecting groove 43 that matches the front end of the connecting rod 62. Through the connecting groove 43, the movable blade 42 can be stably connected to the connecting rod 62 of the swing arm 6, thereby transmitting the swing motion of the swing arm 6 and causing the movable blade 42 to reciprocate relative to the bottom blade 41.

[0038] The first spring plate 44 is connected to the moving blade 42, serving as an elastic support and repositioning mechanism. The first spring plate 44 provides elastic force during the movement of the moving blade 42, ensuring that the moving blade 42 and the bottom blade 41 always maintain a suitable pressure and relative position, making the shearing action more stable and effective.

[0039] A nylon strip 45 is disposed between one end of the first spring plate 44 and the moving blade 42. The nylon strip 45 has good wear resistance and self-lubricating properties, which can reduce friction and wear between the first spring plate 44 and the moving blade 42, reduce noise during operation, and ensure that the elastic effect of the first spring plate 44 can be stably transmitted to the moving blade 42.

[0040] The other end of the first spring plate 44 is connected to the locking mechanism 46, which is fixedly mounted on the bottom blade 41 by bolts. The function of the locking mechanism 46 is to firmly fix the first spring plate 44 to the bottom blade 41, ensuring the stability and reliability of the entire cutter head assembly 4 structure and preventing the first spring plate 44 from loosening or falling off during operation.

[0041] Furthermore, the locking mechanism 46 includes a main body seat 461 mounted on the bottom blade 41. A pin 462 is mounted on the main body seat 461, and a locking spring 463 is sleeved on the pin 462. One end of the locking spring 463 is connected to a latch 464, and the other end is connected to a hinge block 465. Specifically, the main body seat 461 is the basic support component of the locking mechanism 46 and is fixedly mounted on the bottom blade 41. The main body seat 461 has a certain strength and stability, providing a mounting base for other components of the entire locking mechanism 46, ensuring that the locking mechanism 46 will not easily loosen or shift during the operation of the blade assembly 4. Its shape and size are determined according to the overall design requirements of the locking mechanism 46, and it is designed with mounting holes that match the bottom blade 41 for secure fixing to the bottom blade 41 with bolts.

[0042] Pin 462 is mounted on the main body 461, serving as a support shaft for the locking spring 463 and guiding and securing the locking spring 463. Pin 462 typically has a smooth surface to reduce friction during the insertion and movement of the locking spring 463, ensuring smooth extension and retraction. Its length and diameter need to be designed according to the specifications of the locking spring 463 and the working requirements of the locking mechanism 46 to ensure that the locking spring 463 can be stably fitted onto the pin 462 and will not easily fall off.

[0043] The locking spring 463, fitted onto the pin 462, is an elastic element. Both ends of the locking spring 463 are connected to a latch 464 and a hinge block 465, respectively. Its elastic deformation controls the movement of the latch 464 and hinge block 465, thus achieving the locking function. The latch 464, connected to one end of the locking spring 463, is the component in the locking mechanism 46 that directly performs the locking action. The latch 464 can securely lock or release the target component. The hinge block 465, connected to the other end of the locking spring 463, cooperates with the latch 464 to jointly complete the action of the locking mechanism 46. The shape and structure of the hinge block 465 are designed according to the overall design requirements of the locking mechanism 46 to ensure that it can work in conjunction with the latch 464 and the locking spring 463 to achieve the locking and unlocking functions.

[0044] Combination Figure 7 , Figure 8 and Figure 9As shown, a positioning block 466 is provided between the main body base 461 and the hinge block 465. A latch 464 is provided on the top of the main body base 461. A second spring plate 467 is provided between the main body base 461 and the latch 464. One end of the second spring plate 467 is riveted to the main body base 461, and the bottom of the other end of the second spring plate 467 abuts against the top of the hinge block 465. Specifically, the positioning block 466 is located between the main body base 461 and the hinge block 465, and serves to limit the range and direction of movement of the hinge block 465. The positioning block 466 can prevent the hinge block 465 from shifting or moving excessively during movement, ensuring the accurate and stable operation of the latching mechanism 46.

[0045] The latch 464 is located on the top of the main body 461 and is a key component in the latching mechanism 46 that directly realizes the locking function, capable of firmly locking or releasing the target component. One end of the second spring plate 467 is riveted to the main body 461, and the bottom of the other end abuts against the top of the hinge block 465. The second spring plate 467 is an elastic element with the characteristic of storing and releasing energy. In the latching mechanism 46, the second spring plate 467 plays the role of providing elastic force and controlling the movement of the hinge block 465 and the latch 464. Its shape is usually thin and has a certain degree of curvature to generate appropriate elastic force. Example 2

[0046] Combination Figure 2 As shown, compared to Embodiment 1, in this embodiment, a buckle 31 is provided at the bottom of the panel 3, and a slot 32 matching the buckle 31 is provided on the upper cover 1. Specifically, a buckle 31 is provided at the bottom of the panel 3, and the buckle 31 is a structural part on the panel 3 used for connecting and fixing with other components. The upper cover 1 is provided with a slot 32, the position of which corresponds to the buckle 31 at the bottom of the panel 3, and the shape, size, and other characteristics of the slot 32 match those of the buckle 31 to achieve the connection between the two.

[0047] When it is necessary to connect panel 3 and top cover 1 together, the buckle 31 at the bottom of panel 3 is aligned with the slot 32 on top cover 1, and then a little force is applied to make the buckle 31 insert into the slot 32. Since the buckle 31 and the slot 32 match each other, after insertion, the buckle 31 will be locked by the slot 32, realizing a stable connection between panel 3 and top cover 1.

[0048] The upper cover 1 and the bottom cover 2 form a space containing a battery. A charging interface 21 is located at the rear of the bottom cover 2, and a gear switch 9 is located on the upper cover 1. Specifically, the battery is placed inside the space formed by the upper cover 1 and the bottom cover 2, where it stores and releases electrical energy through internal chemical reactions, providing power to the entire device (such as electronic equipment, power tools, etc.). The charging interface 21, located at the rear of the bottom cover 2, is the component that connects the battery to an external power source to achieve the charging function. The charging interface 21 can have USB or DC interfaces, etc. The charging interface 21 typically contains conductive contacts that, when connected to an external charger plug, establish an electrical path, allowing electrical energy from the external power source to be transferred to the battery for charging. The gear switch 9 is located on the upper cover 1, and its specific location is chosen for user convenience, generally in a place that is easily accessible and convenient for operation, such as the edge, side, or front of the upper cover 1—a conspicuous area easily touched by fingers.

[0049] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. An electric clipper, comprising an upper cover (1) and a bottom cover (2), the upper cover (1) and the bottom cover (2) cooperating to form a receiving space, the front end of the upper cover (1) being provided with a panel (3), and the front side of the bottom cover (2) being provided with a blade assembly (4), characterized in that: The front end of the bottom cover (2) is provided with a rocker arm shaft (5), and a rocker arm (6) is sleeved on the rocker arm shaft (5). The front end of the rocker arm (6) is connected to the cutter head assembly (4). The rear end of the rocker arm (6) is connected to a drive mechanism (7) for driving it to swing left and right. The top end of the rocker arm shaft (5) is covered with a rocker arm cap (8). The bottom of the rocker arm cap (8) abuts against the top of the rocker arm (6). The two sides of the rocker arm cap (8) are fixedly connected to the bottom cover (2) by bolts.

2. The electric hair clipper according to claim 1, characterized in that, The drive mechanism (7) includes a rotary motor (71) disposed inside the accommodating space. The output end of the rotary motor (71) is connected to an eccentric shaft (72), and a rotary wheel (73) connected to the rear end of the rocker arm (6) is disposed on the eccentric shaft (72).

3. An electric clipper according to claim 2, characterized in that The rocker arm (6) includes a rocker arm body (61) sleeved on the rocker arm shaft (5). The front end of the rocker arm body (61) is provided with a connecting rod (62) connected to the cutter head assembly (4). The rear end of the rocker arm body (61) is provided with a U-shaped connecting part (63) that contacts the rotating wheel (73). The rotating wheel (73) and the U-shaped connecting part (63) are connected in a transmission manner.

4. An electric clipper according to any one of claims 1 or 3, characterized in that, The cutter head assembly (4) includes a bottom blade (41), a movable blade (42) is connected to the bottom blade (41), the movable blade (42) has a connecting groove (43) that matches the front end of the connecting rod (62), a first spring plate (44) is connected to the movable blade (42), a nylon strip (45) is provided between one end of the first spring plate (44) and the movable blade (42), and a locking mechanism (46) is connected to the other end of the first spring plate (44). The locking mechanism (46) is fixedly installed on the bottom blade (41) by bolts.

5. An electric clipper according to claim 4, characterized in that The locking mechanism (46) includes a main body seat (461) set on the bottom blade (41), a pin (462) set on the main body seat (461), a locking spring (463) sleeved on the pin (462), a lock (464) connected to one end of the locking spring (463), and a hinge block (465) connected to the other end of the locking spring (463).

6. An electric clipper according to claim 5, characterized in that A positioning block (466) is provided between the main body base (461) and the hinge block (465). A latch (464) is provided on the top of the main body base (461). A second spring piece (467) is provided between the main body base (461) and the latch (464). One end of the second spring piece (467) is riveted to the main body base (461), and the bottom of the other end of the second spring piece (467) abuts against the top of the hinge block (465).

7. An electric clipper according to claim 6, characterized in that The bottom of the panel (3) is provided with a buckle (31), and the top cover (1) is provided with a slot (32) that matches the buckle (31).

8. An electric clipper according to claim 7, characterized in that The storage space formed by the top cover (1) and the bottom cover (2) contains a battery. The bottom cover (2) has a charging interface (21) at its rear end, and the top cover (1) has a gear switch (9).

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