An electric clipper

Abstract

This utility model relates to the technical field of hair clipper products, and in particular to an electric hair clipper, including a housing and a control switch disposed on the housing. The control switch includes a power button and a speed adjustment button. The speed adjustment button is slidably disposed on the housing to adjust the output power of the electric hair clipper. The power button is integrated on the speed adjustment button and can turn the electric hair clipper on or off by moving relative to the speed adjustment button. This solves the problem of inconvenience for users to operate existing electric hair clippers.

Description

Technical Field

[0001] This utility model relates to the technical field of hair clipper products, and in particular to an electric hair clipper. Background Technology

[0002] Electric hair clippers, a common hair trimming tool in daily life, mainly consist of a housing, electromechanical components inside the housing, a control switch, and a blade. The control switch controls the electromechanical components to drive the blade to achieve the hair cutting function.

[0003] Currently, the most common types of electric hair clippers on the market are: single-speed clippers, which only have a power button and control the circuit of the electromechanical components by pressing the power button to start the clipper; and adjustable-speed clippers, which have a speed control button on the housing in addition to the power button, allowing adjustment of the clipper's output power. However, the latter has the following drawbacks:

[0004] There are issues with the operation of the electric clippers, such as inconvenience for operators and the relatively redundant surface structure of the machine casing. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide an electric hair clipper that solves the problem of inconvenience for personnel to use and operate existing electric hair clippers.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an electric hair clipper, including a housing and a control switch disposed on the housing. The control switch includes a power button and a speed control button. The speed control button is slidably disposed on the housing to adjust the output power of the electric hair clipper. The power button is integrated on the speed control button and can turn the electric hair clipper on or off when it is moved relative to the speed control button.

[0007] Furthermore, the speed control button has a through hole, and the power button is located inside the through hole.

[0008] By adopting the above technical solution and setting the through hole, the pressing stroke of the power button is ensured to be stable, while improving the integration of the two together.

[0009] Furthermore, the housing contains a circuit board and a trigger switch on the circuit board. The trigger switch includes a power switch, an acceleration switch, and a deceleration switch. The power switch is used to control the on / off state of the electric clipper circuit, and the acceleration and deceleration switches are used to adjust the output power of the electric clipper. The acceleration and deceleration switches are located at opposite ends of the displacement direction of the speed control key, and the power switch is located between the acceleration and deceleration switches.

[0010] By adopting the above technical solution, the acceleration switch and deceleration switch are placed at opposite ends, opposite to the sliding direction of the speed control key. This makes it easy for the speed control key to touch the acceleration switch or deceleration switch after sliding linearly to the desired position. The power switch is located between the acceleration switch and deceleration switch, corresponding to the position of the power button, so that the power switch can be touched when the power button is pressed.

[0011] Furthermore, the power button includes a pressing part that is movably connected to the speed control button and a trigger plate located at the bottom of the pressing part. The trigger plate corresponds to the position of the power switch and is configured to trigger the power switch when the pressing part is pressed.

[0012] By adopting the above technical solution, the trigger plate is designed to facilitate the direct transmission of pressing pressure to the power switch, eliminating mechanical transmission delay.

[0013] Furthermore, the housing has openings to accommodate the movement of the trigger plate.

[0014] By adopting the above technical solution, the opening is designed to facilitate the movement of the trigger plate inside, and also to facilitate the limiting and guiding of the movement direction of the trigger plate.

[0015] Furthermore, the speed control key includes a sliding part that is slidably connected to the housing and a push plate located at the bottom of the sliding part. The push plate is located inside the housing. When the sliding part slides, it synchronously drives the push plate to move to trigger the acceleration switch or deceleration switch.

[0016] By adopting the above technical solution, the push plate moves synchronously with the sliding part inside the housing, so that when the push plate slides on the housing, the acceleration switch or deceleration switch is triggered by the push plate.

[0017] Furthermore, the sliding part includes a sliding block and a pin located at the bottom of the sliding block. The push plate has a slot, and the sliding part is detachably connected to the push plate by inserting the pin into the slot.

[0018] By adopting the above technical solution, the sliding part is connected to the push plate through the pin, which facilitates the free combination or separation of the two, so that maintenance and replacement can be carried out when a certain component is damaged.

[0019] Furthermore, the housing is equipped with sliding holes to accommodate the pins that can slide freely along the direction of the speed control key.

[0020] By adopting the above technical solution, the sliding hole restricts the pins to slide only in the set direction, preventing the speed control key from shaking when sliding, and playing a guiding and limiting role.

[0021] Furthermore, an elastic reset structure is provided between the speed control key and the housing to reset the speed control key after displacement.

[0022] By adopting the above technical solution and setting the elastic reset structure, when the speed control key is pushed by external force to touch the trigger switch, the external force is removed and the speed control key can automatically reset to the initial position. Then, by touching the trigger switch multiple times, the electric clipper can be used to increase or decrease the speed.

[0023] Furthermore, the elastic reset structure includes a reset plate, a guide block, and a first elastic element. The reset plate is slidably mounted on the housing and is inserted into the pins to make the two move synchronously. One side of the guide block is elastically connected to the housing through the first elastic element, and the other side forms a wedge engagement with the reset plate.

[0024] By adopting the above technical solution, the elastic reset structure realizes the closed-loop operation of the speed control key "sliding-automatic reset" through the reset plate, guide block and first elastic element, which solves the pain point that the traditional speed control switch must be manually reset. Its technical advantages are reflected in the following effects: when the user releases the speed control key, the first elastic element pushes the guide block to move. It uses the wedge cooperation formed by the guide block and the reset plate to drive the speed control key to automatically return to the initial position, and the mechanical transmission structure is more stable.

[0025] Furthermore, both the reset plate and the guide block have V-shaped bevels on their adjacent sides.

[0026] By adopting the above technical solution, and utilizing the contact of the V-shaped inclined surface between the reset plate and the guide block, the speed control key can achieve the reset operation after displacement under the elastic action of the first elastic element, whether it triggers the acceleration switch forward or the deceleration switch downward.

[0027] Furthermore, the housing is provided with clearance notches to accommodate the first elastic element and the guide block.

[0028] By adopting the above technical solution, the clearance notch on the casing facilitates the placement of the first elastic element and the guide block, thereby optimizing the product structure and making the assembled components of the product more compact.

[0029] Furthermore, the push plate is equipped with fixed feet, and the circuit board has a sliding groove. The fixed feet are slidably positioned in the sliding groove so that the push plate and the circuit board are slidably connected.

[0030] By adopting the above technical solution, the fixed foot and the sliding groove form a secondary guide, which enhances the displacement stability of the push plate.

[0031] Furthermore, the power button is equipped with a second elastic element for resetting after displacement, with its two ends elastically loaded on the power button and the push plate, respectively.

[0032] By adopting the above technical solution, the second elastic element ensures that the power button can quickly spring back to its original position after the external force is removed.

[0033] Furthermore, the push plate is equipped with a positioning post, and one end of the second elastic element is nested on the positioning post.

[0034] By adopting the above technical solution, the design of the positioning column facilitates the positioning of the second elastic element on the push plate, thereby improving the connection stability between the two.

[0035] Furthermore, the housing includes an outer shell and a core housing located inside the outer shell. The speed control key is slidably mounted on the core housing, and the housing has an operation port at the position corresponding to the speed control key to allow the speed control key to slide.

[0036] By adopting the above technical solution, and by setting a separate inner casing for the speed control key to slide, the product's sealing performance is effectively improved, while the operation port allows for easy operation of the speed control key from the outside of the casing.

[0037] Furthermore, a dustproof plate is provided on the movement housing, which fits snugly around the bottom of the operating port, and the speed control key is slidably mounted on the dustproof plate.

[0038] By adopting the above technical solution, the operation port is sealed with a dustproof plate, thereby reducing or blocking hair from entering the machine body and effectively solving the problem of hair easily entering the interior of existing electric hair clippers and making cleaning inconvenient.

[0039] Compared with the prior art, the advantages of this utility model are:

[0040] 1. In this utility model, compared with the traditional design of separating the power button and speed control button, this application integrates the power button into the speed control button. Users can seamlessly switch between power on / off and speed control functions with one hand, avoiding excessive finger displacement. It is especially suitable for blind operation of the product when hands are wet or the product is held, effectively improving the convenience of product use.

[0041] 2. In this utility model, the power button is integrated into the speed control button, which can reduce the number of openings for the power button and speed control button on the surface of the casing, effectively reduce the risk of hair entering the casing, significantly improve the overall integrity of the equipment, and make the surface of the casing smoother, improving the smoothness and comfort when the user holds it. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the electric clipper structure of this utility model.

[0043] Figure 2 This is an exploded view of the electric clipper structure of this utility model.

[0044] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0045] Figure 4 This utility model Figure 2Enlarged view of the structure at point B in the middle.

[0046] Figure 5 This utility model Figure 2 Enlarged view of the structure at point C.

[0047] In the picture:

[0048] 1. Housing, 11. Bottom housing, 12. Front housing, 121. Operating port, 13. Mechanism housing, 131. Circumvention notch, 132. Sliding hole, 133. Opening, 134. Receiving groove, 135. Mounting foot.

[0049] 21 Speed ​​control key, 21a Through hole, 210 Sliding part, 211 Sliding block, 212 Pin, 22 Power key, 221 Pressing part, 222 Trigger plate, 223 Second elastic element, 23 Push plate, 231 Slot, 232 Positioning post, 233 Through hole, 234 Fixing foot.

[0050] 3. Elastic reset structure, 30. V-shaped inclined surface, 31. First elastic element, 32. Guide block, 321. Mounting hole, 33. Reset plate, 331. First through hole.

[0051] 4. Dustproof plate, 41. Second through hole, 411. Main hole, 412. Side hole, 42. Mounting hole.

[0052] 5. Circuit board, 51. Sliding groove.

[0053] 6. Trigger switch, 61. Deceleration switch, 62. Acceleration switch, 63. Power switch. Detailed Implementation

[0054] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0055] Reference Figure 1 and 2 The electric hair clipper mainly consists of a housing 1, electromechanical components, a control switch, and a moving blade. The electromechanical components are located inside the housing 1 and are used to drive the moving blade to reciprocate. The control switch is located on the surface of the housing 1 and sends an operation signal to the electromechanical components to start the electric hair clipper or adjust its speed.

[0056] The electromechanical components of the electric clipper are common in this field, so only a general description is given here. The electromechanical components mainly consist of a power module, a control module, a transmission module, and a power supply module. The power module includes a motor. The control module includes a circuit board 5, a trigger switch 6 connected to the circuit board 5, sensors, overload protection, etc. The transmission module mainly transmits the mechanical energy output by the motor to the cutter head to drive the cutter head to move. Its main components include a gear set, an eccentric wheel, a transmission shaft, and a bushing. The power supply module mainly consists of a battery, a charging port, and a voltage conversion circuit, etc. Its main function is to supply power to the circuit board 5 and the motor. Of course, the above modules may also include other structural components. For example, the power module may also include a heat sink for the motor, heat sink, etc. Since these are existing conventional designs and are not related to the utility model of this application, they will not be described in detail.

[0057] In this embodiment, the housing 1 of the electric clipper is typically composed of a bottom shell 11 and a top shell 12 covering the bottom shell 11. The electromechanical components are correspondingly disposed in the cavity formed after the two are covered, and the corresponding sliding components are slidably disposed on the top shell 12. The housing 1 in this embodiment can also adopt this structure.

[0058] Furthermore, in order to improve the sealing performance of the product and the rationality of the layout of each component, in this embodiment, the housing 1 also includes a core housing 13. The core housing 13 is located between the bottom housing 11 and the top housing 12. It is combined with the bottom housing 11 by means of screws, adhesives, etc., and the above-mentioned electromechanical components are confined in the placement cavity formed between the core housing 13 and the bottom housing 11. The top housing 12 is installed on the bottom housing 11 and covers the core housing 13. The speed control key 21 is slidably disposed on the core housing 13, and the top housing 12 is provided with an operation port 121 at the position corresponding to the speed control key 21, so as to operate the speed control key 21 to slide on the core housing 13 through the operation port 121.

[0059] Reference Figure 1 and 2 The control switch includes a power button 22 and a speed control button 21, both of which correspond to the trigger switch 6 on the circuit board 5. The trigger switch 6 includes a power switch 63, an acceleration switch 62, and a deceleration switch 61 on the circuit board 5. The speed control button 21 is slidably mounted on the core housing 13. When it slides into place on the core housing 13, it will trigger the acceleration switch 62 or the deceleration switch 61, thereby adjusting the output power of the electric clipper and achieving the purpose of motor speed regulation. The power button 22 is integrated on the speed control button 21 and can trigger the power switch 63 after moving relative to the speed control button 21, thereby starting or stopping the motor.

[0060] In this embodiment, the trigger switch 6 can be a capacitive touch switch, a resistive touch switch, a photoelectric switch / optical interruptor, a membrane switch, a piezoelectric switch, or a mechanical micro switch, etc. As long as the power button 22 can trigger the power switch 63 to turn on or off after displacement, and the speed control button 21 can trigger the acceleration switch 62 or the deceleration switch 61 after sliding, the trigger switch 6 can also be of other types. It can be a mechanical contact start method or a non-contact start method, such as inductive start, magnetic start, etc., which will not be elaborated here.

[0061] In this embodiment, refer to Figure 2 As an integrated combination of the power switch and the speed control key 21, the speed control key 21 has a through hole 21a inside. The power key 22 is movably disposed in the through hole 21a and can trigger the power switch 63 after moving along the through hole 21a. The through hole 21a can be located in the center of the power key 22 or in other positions. The two can be directly plugged in and movably connected, or they can be indirectly connected through other components. As long as the integrated setting of the two can be achieved and the corresponding trigger switch 6 can be triggered after their respective displacement, the power key 22 and the speed control key 21 can also have other structures, which will not be described in detail here.

[0062] In this embodiment, refer to Figure 2 and 3 The power switch 63, acceleration switch 62, and deceleration switch 61 can be directly integrated on the circuit board 5, or they can be installed in other positions via wires. As long as the acceleration switch 62 and deceleration switch 61 are located in the sliding direction of the speed control key 21, and the speed control key 21 can trigger the corresponding acceleration switch 62 or deceleration switch 61 after sliding into place on the mechanism housing 13, the power switch 63 is located between the acceleration switch 62 and deceleration switch 61. The three are arranged linearly, and the position of the power switch 63 corresponds to the position of the power button 22.

[0063] In this embodiment, refer to Figure 2 The power button 22 includes a pressing part 221 and a trigger plate 222 located at the bottom of the pressing part 221. The pressing part 221 is movably inserted through the through hole 21a of the speed control button 21. The trigger plate 222 is inserted through the core housing 13 and corresponds to the position of the power switch 63 on the circuit board 5. After pressing the pressing part 221, the trigger plate 222 descends to trigger the power switch 63, thereby turning on the electric clipper.

[0064] In this embodiment, to avoid the situation where the trigger plate 222 cannot be aligned with the power button 22 after the speed control key 21 moves synchronously with the power button 22, thus requiring the speed control key 21 to be reset before the power button 22 can be turned off when the electric clipper is turned off, preferably, the trigger plate 222 is set as a rectangular plate along the sliding direction of the speed control key 21. Its length is such that when the speed control key 21 moves to its extreme position, the trigger plate 222 can trigger the power switch 63 when the power button 22 is pressed. Thus, the problem of triggering the power switch 63 when the speed control key 21 slides to any position and the power button 22 is pressed can be solved by the rectangular trigger plate 222.

[0065] In this embodiment, the trigger plate 222 is a rectangular structure, specifically a cuboid. It can be imagined that as long as the speed adjustment key 21 can be slid to any position, the power switch 63 can be triggered by pressing the power button 22. Its structure can also be circular, triangular prism or other shapes. Its shape is not limited to a rectangular structure, and its shapes will not be listed one by one here.

[0066] Reference Figure 2 and 4 An opening 133 is provided on the mechanism housing 13 at the position corresponding to the trigger plate 222. The opening 133 is provided to facilitate the movement of the trigger plate 222 on the mechanism housing 13 to trigger the power switch 63.

[0067] In this embodiment, refer to Figure 2 As a specific embodiment of the speed control key 21, the speed control key 21 includes a sliding part 210 that is slidably connected to the mechanism housing 13 and a push plate 23 located at the bottom of the sliding part 210 and inside the mechanism housing 1. When the sliding part 210 slides, it synchronously drives the push plate 23 to move to trigger the acceleration switch 62 or the deceleration switch 61.

[0068] In this embodiment, refer to Figure 2 and 4 The surface of the movement housing 13 facing the face shell 12 is provided with a receiving groove 134, and the sliding part 210 is slidably disposed in the receiving groove 134.

[0069] In this embodiment, as an example of the sliding part 210 driving the push plate 23 to move synchronously, refer to... Figure 2 The sliding part 210 includes a sliding block 211 and pins 212 located on the front and rear sides of the bottom of the sliding block 211. The insert plate is provided with grooves corresponding to the two pins 212. The sliding plate moves synchronously with the push plate 23 through the cooperation of the pins 212 and the slot 231.

[0070] In this embodiment, a sliding hole 132 is provided on the movement housing 13 corresponding to the through position of the pin 212. The sliding hole 132 is provided on the movement housing 13 along the sliding direction of the sliding block 211. When the sliding block 211 slides, it drives the pin 212 and the push plate 23 to move. The pin 212 is correspondingly slidably disposed in the sliding hole 132.

[0071] In this embodiment, the purpose of placing the pin 212 on the bottom front and rear sides of the sliding block 211 is to provide space for the trigger plate 222, so as to optimize the composition precision between the various components of the product.

[0072] In this embodiment, the push plate 23 functions to trigger the corresponding acceleration switch 62 or deceleration switch 61 after the sliding block 211 moves synchronously. As one way to set the push plate 23, it can be slidably mounted on the circuit board 5. For details, refer to... Figure 2 , 3 4. The bottom of the push plate 23 is provided with a fixed foot 234, and the corresponding circuit board 5 is provided with a sliding groove 51 that forms a clearance fit with the fixed foot 234. The sliding groove 51 extends along the movement direction of the sliding block 211 to allow the fixed foot 234 to slide along the sliding groove 51. This design helps to improve the stability of the push plate 23 during displacement.

[0073] In this embodiment, the push plate 23 has a through hole 233 at its center, and the lower end of the corresponding trigger plate 222 is inserted into it to realize the combination between the power button 22 and the push plate 23, effectively improving the stability of the two after assembly.

[0074] In the above embodiment, the sliding block 211 is connected to the push plate 23 by the insertion of the pin 212 to achieve synchronous movement between the two. It is conceivable that as long as the sliding block 211 can drive the push plate 23 to move synchronously when it slides, the synchronous movement between the sliding block 211 and the push plate 23 can also be achieved in other ways. It can be a mechanical contact linkage, such as the aforementioned pin 212, or a non-contact waterproof method, such as a magnetic attraction method, that is, setting mutually attractive magnetic materials on the sliding block 211 and the push plate 23, and using magnetism to achieve synchronous driving of the push plate 23 when the sliding block 211 slides. Of course, there can be other methods, which will not be elaborated here.

[0075] Based on the above embodiments, in order to facilitate the automatic reset of the power button 22 after it is pressed, the power button 22 is also provided with a second elastic element 223.

[0076] Preferably, as a specific arrangement of the second elastic element 223, the second elastic element 223 can be elastically loaded between the power button 22 and the push plate 23. When the artificial finger applies pressure to the pressing part 221, the second elastic element 223 is elastically compressed. After the external force is removed, the second elastic element 223 resets and pushes the pressing part 221 to reset, thereby realizing the reset operation of the power button 22.

[0077] In this embodiment, the second elastic element 223 can be a compression spring, a spring, a torsion spring, or elastic rubber. As long as it can provide elastic restoring force after the power button 22 is pressed, it can also be other components or other mechanisms. The following describes its specific structure using the second elastic element 223 as a spring as an example.

[0078] Specifically, refer to Figure 2 and 4 One, two, or more springs can be set. Taking two as an example, the two springs are located on the front and back sides of the trigger plate 222 (the front and back sides in this article refer to the width direction of the electric clipper). The upper ends of the two springs are connected to the bottom of the pressing part 221, and the lower ends of the two springs are connected to the push plate 23. This completes the assembly of the springs.

[0079] In this embodiment, in order to improve the connection stability between the push plate 23 and the spring, a positioning post 232 can be set at the position of the spring on the push plate 23. By fitting the spring onto the positioning post 232, the stability of the spring installation can be improved. Similarly, a positioning post 232 can also be set at the bottom of the pressing part 221 to improve the assembly stability between it and the spring.

[0080] In this embodiment, the upper end of the spring is connected to the bottom of the pressing part 221. Of course, it is conceivable that the spring can also abut against the side of the trigger plate 222, which can also achieve the purpose of elastic support for the power button 22. For example, if there is a protrusion on the side of the trigger plate 222, the spring can be fitted on the protrusion to achieve the above effect.

[0081] Based on the above embodiments, the opening 133 provided on the movement housing 13 is located in the receiving groove 134 of the movement housing 13, and the opening 133 also serves to accommodate the spring.

[0082] In this embodiment, the lower end of the spring is mounted on the push plate 23. The advantage of this is that the push plate 23 can slide synchronously with the displacement of the sliding block 211. In this way, when the push plate 23, the spring, the pressing part 221 and the trigger plate 222 are displaced synchronously, the spring will only undergo vertical elastic deformation, thereby providing elastic restoring force for the pressing part 221. Of course, it is conceivable that the lower end of the spring is not located on the push plate 23, but can be located on the housing 1 or the circuit board 5. As long as it can provide elastic restoring force for the pressing part 221 after pressing, the spring can also be set in other positions, which will not be elaborated here.

[0083] Based on the above embodiments, in order for the speed control key 21 to quickly reset after sliding and touching the corresponding acceleration switch 62 or deceleration switch 61, an elastic reset structure 3 is also provided for the reset work after the speed control key 21 is displaced.

[0084] Specifically, refer to Figure 2 , 4 Taking the elastic reset structure 3 on the movement housing 13 as an example, it includes a reset plate 33, guide blocks 32, and a first elastic element 31. The reset plate 33 is located in the receiving groove 134 of the movement housing 13, and has a first through hole 331 inside. The lower end of the pin 212 of the sliding block 211 passes through the first through hole 331 and the sliding hole 132 in sequence to form an insertion with the push plate 23. When the sliding block 211 is displaced, it will drive the reset plate 33 to move synchronously through the pin 212. The guide blocks 32 and the first elastic element 31 are located on the front and rear sides of the receiving groove 134. The side of the two guide blocks 32 adjacent to each other forms a wedge fit with the side of the reset plate 33. The side of the two guide blocks 32 far apart from each other is elastically abutted against the movement housing 13 by a spring. In this way, the front and rear sides of the reset plate 33 are guided by the guide blocks. The guide block 32 and the first elastic element 31 are elastically pressed together. Since the guide block 32 and the reset plate 33 form a wedge fit, when the sliding block 211 moves to drive the pin 212 and the push plate 23 to move, the pin 212 synchronously drives the reset plate 33 to move relative to each other. During the movement, the reset plate 33 will squeeze the guide block 32 along the width direction of the housing 1 through the wedge fit between it and the guide block 32. At this time, the first elastic element 31 is compressed. When the external force pushing the sliding block 211 is removed, the first elastic element 31 resets and drives the guide block 32 to reset and push the reset plate 33 to the initial position. During the reset process, the reset plate 33 drives the sliding block 211 to reset through the pin 212. Thus, the speed adjustment key 21 is reset after speed adjustment. This process is repeated to achieve multiple upshift or downshift operations.

[0085] In the above embodiment, the moving direction of the sliding block 211 is the length direction of the housing 1, and the elastic extension direction of the first elastic member 31 is perpendicular to this direction in the horizontal plane, that is, the width direction of the housing 1.

[0086] In this embodiment, as a wedge-shaped fit between the reset plate 33 and the guide block 32, the adjacent sides of the reset plate 33 and the guide block 32 are provided with V-shaped inclined surfaces 30. The advantage of the V-shaped inclined surfaces 30 is that, regardless of whether the sliding block 211 triggers the acceleration switch 62 forward or the deceleration switch 61 backward, the reset work after displacement can be achieved under the elastic action of the first elastic member 31.

[0087] In this embodiment, the first elastic element 31 can be a spring, compression spring, elastic rubber, etc., as long as it can increase the elastic restoring force of the guide block 32 and the reset block after displacement.

[0088] Reference Figure 4In order to optimize the product structure, a clearance notch 131 is provided on the mechanism housing 13. The corresponding first elastic element 31 and guide block 32 are respectively provided in the clearance notch 131. A mounting hole 321 can be provided at the connection between the guide block 32 and the first elastic element 31 to facilitate the assembly between the first elastic element 31 and the guide block 32. Through the above design, the assembly accuracy of the product's dependent parts can be effectively improved.

[0089] In this embodiment, the elastic reset structure 3 includes a reset plate 33, a guide block 32, and a first elastic element 31. As long as it can reset the sliding block 211 after displacement to realize the reset function of the speed control key 21 after displacement, the elastic reset structure 3 can also be other components, mechanisms, or parts. Its setting position is not limited to the core shell 13. It can also be on the front shell 12 or the bottom shell 11, as long as it can realize its reset function.

[0090] Based on the above embodiments, in order to further improve the sealing effect of the product, and at the same time improve the smoothness of the sliding block 211 when sliding on the core housing 13.

[0091] In this embodiment, refer to Figure 2 A dustproof plate 4 is provided between the upper end face of the movement housing 13 and the front housing 12. The dustproof plate 4 is adapted to the shape of the receiving groove 134 on the movement housing 13 and is embedded in the receiving groove 134. The periphery of the dustproof plate 4 fits against the periphery of the operation port 121 on the front housing 12. The sliding block 211 is slidably disposed on the dustproof plate 4. By setting the dustproof plate 4, the sealing of the periphery of the operation port 121 can be improved, thereby preventing hair and other debris from entering the movement housing 13 through the operation port 121, improving the safety of product use and reducing the product failure rate.

[0092] In this embodiment, the dustproof plate 4 is provided with a second through hole 41 to allow the pin 212 and the trigger plate 222 to extend into the movement housing 13 through the second through hole 41.

[0093] Specifically, refer to Figure 5 The second through hole 41 includes a main hole 411 and a secondary hole 412. The secondary hole 412 is located on the front and rear sides of the main hole 411. The aforementioned pin 212 is correspondingly movably disposed in the side hole 412. When the sliding block 211 drives the pin 212 to slide, the pin 212 slides in the side hole 412. The position of the side hole 412 coincides with the position of the sliding hole 132 opened on the aforementioned movement housing 13 in the vertical direction, so as to allow the pin 212 to pass through the side hole 412 and the sliding hole 132 in sequence to connect with the push plate 23.

[0094] In this embodiment, the length of the side hole 412 in the sliding direction of the sliding block 211 is greater than the length of the main hole 411. This eliminates the need to design the opening length of the main hole 411 to be too large. The area of ​​the main hole 411 is sufficient to allow the power button 22 to move vertically. In turn, by reducing the area of ​​the second through hole 41, the amount of external dust entering the mechanism housing 13 can be reduced.

[0095] Preferably, the surface of the sliding block 211 of the dustproof plate 4 is a smooth plane so that the sliding block 211 can slide more smoothly. The material can be metal plate, plastic plate or other material plate.

[0096] By setting up the dustproof plate 4, not only is it dustproof, but it also avoids direct contact and friction between the sliding block 211 and the movement shell 13, which could easily cause wear on the movement shell 13, thus effectively reducing the subsequent maintenance cost of the product.

[0097] In this embodiment, refer to Figure 4 and 5 To further improve the stability of the dustproof plate 4 after assembly in the receiving groove 134 and to facilitate the assembly of the dustproof plate 4 on the movement housing 13, taking the receiving groove 134 as a rectangular groove as an example, the corresponding dustproof plate 4 is also a rectangular plate. At the four corners of the rectangle or other positions, there are mounting posts 135, and the corresponding positions of the dustproof plate 4 are provided with mounting holes 42. In this way, through the interlocking cooperation between the mounting posts 135 and the mounting holes 42, the ease of assembly of the dustproof plate 4 on the movement housing 13 and the stability effect after assembly can be improved.

[0098] Although the preferred embodiments of the present invention have been described in detail above, it should be clearly understood that various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electric hair clipper, comprising a housing and a control switch disposed on the housing, characterized in that, The control switch includes a power button and a speed control button. The speed control button is slidably mounted on the housing to adjust the output power of the electric clipper. The power button is integrated into the speed control button and can turn the electric clipper on or off relative to the speed control button.

2. The electric hair clipper according to claim 1, characterized in that, The speed control key has a through hole, and the power key is movably disposed within the through hole.

3. The electric hair clipper according to claim 1, characterized in that, The housing contains a circuit board and a trigger switch on the circuit board. The trigger switch includes a power switch, an acceleration switch, and a deceleration switch. The power switch is used to control the on / off state of the electric clipper circuit. The acceleration switch and the deceleration switch are used to adjust the output power of the electric clipper. The acceleration switch and the deceleration switch are located at opposite ends of the displacement direction of the speed control key, and the power switch is correspondingly located between the acceleration switch and the deceleration switch.

4. The electric hair clipper according to claim 3, characterized in that, The power button includes a pressing part movably connected to the speed control button and a trigger plate disposed at the bottom of the pressing part. The trigger plate corresponds to the position of the power switch and is configured to trigger the power switch when the pressing part is pressed.

5. An electric hair clipper according to claim 4, characterized in that, The housing has an opening to accommodate the movement of the trigger plate.

6. The electric hair clipper according to claim 3, characterized in that, The speed control key includes a sliding part that is slidably connected to the housing and a push plate located at the bottom of the sliding part. The push plate is located inside the housing. When the sliding part slides, it synchronously drives the push plate to move to trigger the acceleration switch or deceleration switch.

7. An electric hair clipper according to claim 6, characterized in that, The sliding part includes a sliding block and a pin located at the bottom of the sliding block. The push plate is provided with a slot, and the sliding part is detachably connected to the push plate by inserting the pin into the slot.

8. An electric hair clipper according to claim 7, characterized in that, The housing is provided with a sliding hole to accommodate the pins to slide freely along the displacement direction of the speed control key.

9. An electric hair clipper according to claim 7, characterized in that, An elastic reset structure is provided between the speed control key and the housing to reset the speed control key after displacement.

10. An electric hair clipper according to claim 9, characterized in that, The elastic reset structure includes a reset plate, a guide block, and a first elastic element. The reset plate is slidably disposed on the housing and is inserted into the pin to make the two move synchronously. One side of the guide block is elastically connected to the housing through the first elastic element, and the other side forms a wedge engagement with the reset plate.

11. An electric hair clipper according to claim 10, characterized in that, Both the reset plate and the guide block have V-shaped inclined surfaces on their adjacent sides.

12. An electric hair clipper according to claim 10, characterized in that, The housing is provided with a clearance notch to accommodate the first elastic element and the guide block.

13. An electric hair clipper according to claim 6, characterized in that, The push plate is provided with a fixed foot, and the circuit board is provided with a sliding groove. The fixed foot is slidably disposed in the sliding groove so that the push plate and the circuit board are slidably connected.

14. An electric hair clipper according to claim 6, characterized in that, The power button is provided with a second elastic element for resetting after displacement, and the two ends of the second elastic element are elastically loaded on the power button and the push plate, respectively.

15. An electric hair clipper according to claim 14, characterized in that, The push plate is provided with a positioning post, and one end of the second elastic element is nested on the positioning post.

16. An electric hair clipper according to any one of claims 1-15, characterized in that, The housing includes an outer shell and a core shell disposed inside the outer shell. The speed control key is slidably disposed on the core shell. The housing has an operation port corresponding to the position of the speed control key to allow the speed control key to slide.

17. An electric hair clipper according to claim 16, characterized in that, A dustproof plate is provided on the mechanism housing, and the dustproof plate fits snugly around the bottom periphery of the operation port. The speed adjustment key is slidably mounted on the dustproof plate.

Images