An electric hair clipper with replaceable blades

Abstract

This utility model discloses an electric hair clipper with a replaceable blade, belonging to the technical field of electric hair clippers. The utility model includes a handle and a blade. One end of the handle has a slot, and one side of the blade has a rectangular block that inserts into the slot. Two mounting slots are formed on both sides of the rectangular block, each containing a spring. One end of the spring is connected to a limiting block. Limiting holes are formed on both sides of the slot, with one end of the limiting block inserted into each hole. A button is fitted inside each limiting hole. This utility model, through the cooperation of the rectangular block and the slot, the engagement of the locking block and the slot, and the locking of the spring-driven limiting block and the limiting hole, constitutes a multi-directional, multi-point mechanical connection and locking system. This ensures that the blade and handle will not loosen or detach under high-speed vibration, greatly improving safety and stability during use and effectively avoiding operational risks caused by accidental blade displacement.

Description

Technical Field

[0001] This utility model relates to the field of electric hair clipper technology, specifically an electric hair clipper with replaceable blades. Background Technology

[0002] In modern family life and professional hairdressing settings, electric hair clippers are becoming increasingly widely used as a convenient and efficient hair-cutting tool. With the diversification of user needs, higher demands are being placed on the functionality, ease of use, and adaptability of electric hair clippers. Among these, the ease of replacement and stability of the blade, as the core component that directly acts on the hair, are particularly crucial.

[0003] Existing electric hair clippers use a simple snap-fit ​​mechanism to detachably connect the blade head to the handle. However, this snap-fit ​​structure is prone to wear and tear with frequent use, leading to loose connections and affecting the stability and safety of haircutting. Therefore, an electric hair clipper with a replaceable blade head is proposed to overcome the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide an electric hair clipper with a replaceable blade. Through the cooperation of the rectangular block and the slot, the engagement of the locking block and the slot, and the locking of the spring-driven limiting block and the limiting hole, a multi-directional and multi-point mechanical connection and locking system is formed. This ensures that the blade and the handle will not loosen or fall off under high-speed vibration, and solves the problem that the buckle structure is prone to wear due to frequent use, resulting in loose connection and affecting the stability and safety of hair cutting.

[0005] This utility model is achieved through the following technical solution: This utility model is an electric hair clipper with a replaceable blade, including a handle and a blade. One end of the handle has a slot, and one side of the blade has a rectangular block that is inserted into the slot. The rectangular block has mounting grooves on both sides, and a spring is installed inside the mounting groove. One end of the spring is connected to a limit block. Limit holes are opened on both sides of the slot, and one end of the limit block is inserted into the limit hole. A button is fitted inside the limit hole.

[0006] Furthermore, protrusions are provided on both sides of the handle, and a slot is provided on one side of each protrusion. Protrusions are provided on both sides of the cutter head, and a locking block is provided on one side of each protrusion, which is locked in the slot.

[0007] Furthermore, the slot has a drive shaft inside, and one end of the rectangular block has a groove. A connecting block fits in the groove and is connected to the drive shaft.

[0008] Furthermore, one side of the limiting block is designed as a beveled structure.

[0009] Furthermore, a switch is located on the top of the handle.

[0010] This utility model has the following beneficial effects: 1. This utility model, through the cooperation of rectangular blocks and slots, the engagement of card blocks and slots, and the locking of spring-driven limit blocks and limit holes, together constitutes a multi-directional, multi-point mechanical connection and locking system, ensuring that the cutter head and handle will not loosen or fall off under high-speed vibration, greatly improving the safety and stability of use, and effectively avoiding the operational risks caused by accidental displacement of the cutter head.

[0011] 2. When replacing the cutter head, the user only needs to press the buttons on both sides to drive the limiting block out of the limiting hole, thereby releasing the locking state and removing the cutter head. No tools are required, making it simple, fast, and labor-saving, greatly improving the user experience.

[0012] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of an electric hair clipper. Figure 2 A schematic diagram of the handle and cutter head structure; Figure 3 This is a schematic diagram of the handle structure; Figure 4 This is a schematic diagram of the cutter head structure.

[0014] In the diagram: 1. Handle; 101. Switch; 102. Protrusion; 103. Slot; 104. Drive shaft; 105. Slot; 106. Limiting hole; 107. Button; 2. Cutting head; 201. Protrusion; 202. Block; 203. Rectangular block; 204. Mounting slot; 205. Spring; 206. Limiting block; 207. Slide groove; 208. Connecting block. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-4This utility model provides a technical solution: an electric hair clipper with a replaceable blade, including a handle 1 and a blade 2. One end of the handle 1 has a slot 103, and one side of the blade 2 has a rectangular block 203. The rectangular block 203 is inserted into the slot 103, ensuring precise radial positioning of the blade 2, preventing it from shaking or rotating during use, ensuring efficient and stable power transmission, and providing a stable and reliable connection foundation. This is the core structure for the replaceable blade 2 function. Two mounting slots 204 are respectively provided on both sides of the rectangular block 203. A spring 205 is installed inside the mounting slot 204, providing preload force. One end of the spring 205 is connected to a limit block 2. 06. One end of the limiting block 206 is designed with a beveled structure for installation guidance and self-locking, making the installation process very smooth. The user only needs to push the cutter head 2 all the way to automatically lock it. Limiting holes 106 are opened on both sides of the slot 103. One end of the limiting block 206 is inserted into the limiting hole 106. The spring 205, the limiting block 206, and the limiting hole 106 provide pre-tightening force through the spring 205, pushing the limiting block 206 into the limiting hole 106 to fix the cutter head 2 (locked state). A button 107 is fitted inside the limiting hole 106. When the button 107 is pressed, the limiting block 206 is disengaged from the limiting hole 106, releasing the lock (unlocked state), realizing quick installation and locking of the cutter head 2. It can be installed with a "click" sound, without tools, providing an excellent experience. A mechanical interlock is provided to ensure that the cutter head 2 will not loosen under high vibration conditions, ensuring safety and reliability.

[0017] The handle 1 has protrusions 102 on both sides, and a slot 105 is formed on one side of each protrusion 102. The cutter head 2 has protruding plates 201 on both sides, and a locking block 202 is formed on one side of each protruding plate 201. The locking block 202 is engaged in the slot 105. The protrusions 102, slot 105, protruding plates 201, and locking block 202 combine to form an auxiliary positioning and anti-torsion structure. It provides an additional support point outside the main connection (slot 103 - rectangular block 203), increasing the rigidity of the connection. At the same time, the locking block 202 must be aligned with the slot 105 to be inserted, which serves to prevent errors and ensures that the user can only install the cutter head 2 in the correct direction.

[0018] The slot 103 houses a drive shaft 104. One end of the rectangular block 203 has a groove 207, within which a connecting block 208 fits. The connecting block 208 is connected to the drive shaft 104. The drive shaft 104, groove 207, and connecting block 208 form the critical path for power transmission. The motor inside the handle 1 rotates via the drive shaft 104, and the connecting block 208 on the drive shaft 104 is embedded in the groove 207 of the rectangular block 203. When the motor rotates, the connecting block 208 slides within the groove 207, simultaneously driving the cutter head 2 to reciprocate.

[0019] A switch 101 is located on the top of the handle 1 to control the circuit's on / off state. Users can use it to start or stop the hair clipper motor, providing the most basic and core operating functions. Its top-positioned design makes it convenient for thumb or forefinger operation and conforms to ergonomic principles.

[0020] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An electric hair clipper with replaceable blades, comprising a handle (1) and a blade (2), characterized in that: The handle (1) has a slot (103) at one end, and the blade (2) has a rectangular block (203) on one side, which is inserted into the slot (103); The rectangular block (203) has mounting slots (204) on both sides, and a spring (205) is provided inside the mounting slot (204). One end of the spring (205) is connected to a limiting block (206). Limiting holes (106) are provided on both sides of the slot (103), and one end of the limiting block (206) is inserted into the limiting hole (106). A button (107) is fitted inside the limiting hole (106).

2. The electric hair clipper with replaceable blades according to claim 1, characterized in that, The handle (1) has protrusions (102) on both sides, and a slot (105) is provided on one side of the protrusions (102). The blade (2) has protrusions (201) on both sides, and a locking block (202) is provided on one side of the protrusions (201). The locking block (202) is locked in the slot (105).

3. An electric hair clipper with replaceable blades according to claim 1, characterized in that, The slot (103) is provided with a drive shaft (104) inside. One end of the rectangular block (203) is provided with a groove (207). A connecting block (208) is fitted inside the groove (207). The connecting block (208) is connected to the drive shaft (104).

4. An electric hair clipper with replaceable blades according to claim 1, characterized in that, One side of the limiting block (206) is designed as a sloping structure.

5. An electric hair clipper with replaceable blades according to claim 1, characterized in that, The top of the handle (1) is provided with a switch (101).

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