Novel tooth pitch control mechanism for electric hair cutter

Abstract

The utility model discloses a novel electric hair cutter pitch control mechanism which comprises a lower cutter and an upper cutter, a fixed cutter frame is arranged above the lower cutter, the bottom of the lower cutter is in threaded connection with two lower screws, guide rails are fixedly arranged on the left side and the right side of the fixed cutter frame respectively, and the guide rails are connected with the upper cutter frame. An upper limiting groove and a lower limiting groove are formed in the left side wall of the fixed knife rest, an upper knife is arranged above the lower knife, a movable knife rest is fixedly connected to the upper portion of the upper knife, and a knife head body is arranged above the upper knife. By arranging an adjusting key, an adjusting groove, an inner spring, a gear buckle, a clamping box, a small screw, a gear, a pressure spring, a gasket and a fixing screw, the adjusting key drives the gear buckle to slide into another tooth groove from one tooth groove of the gear while rotating, and the gear buckle collides with the left wall and the right wall of the clamping box under the pressure of the inner spring to generate clear and melodious gear sound; and meanwhile, a gear self-locking function is achieved by matching with a tooth groove of the gear.

Description

Technical Field

[0001] The utility model relates to the technical field of XX, in particular to a novel tooth pitch control mechanism for an electric hair clipper. Background Art

[0002] An electric hair clipper is a commonly used hair cutting and styling tool and is one of the most commonly used tools by barbers. Generally, it includes an electric hair clipper head and an electric hair clipper body. The electric hair clipper head is the main functional component of the electric hair clipper, mainly including an upper blade, a lower blade and other auxiliary parts, and the tooth pitch between the upper and lower blades is controlled by an adjustment key.

[0003] In the prior art, the adjustment key mechanism of the electric hair clipper is mainly arranged on the main body, and the parts of the cutter head are not easy to disassemble and clean, thus affecting the use function. Moreover, the gear feeling during gear adjustment of the adjustment key is very poor, and there is no clear and pleasant gear sound, seriously affecting the user experience. Content of the Utility Model

[0004] The purpose of the utility model is to provide a novel tooth pitch control mechanism for an electric hair clipper. When the adjustment key rotates, it drives the gear latch to slide from one tooth groove of the gear into another tooth groove. Under the pressure of the inner spring, the gear latch collides with the left and right walls of the cartridge to produce a clear and pleasant gear sound. At the same time, it cooperates with the tooth grooves of the gear to play a gear self-locking function. All parts of the cutter head can be disassembled, which is convenient for cleaning the interior.

[0005] To achieve the above purpose, a novel tooth pitch control mechanism for an electric hair clipper is provided, including: a lower blade and an upper blade. A fixed cutter holder is arranged above the lower blade. The bottom of the lower blade is threadedly connected with two lower screws. Guide rails are fixedly arranged on both the left and right sides of the fixed cutter holder. An upper and lower limit groove is arranged on the left side wall of the fixed cutter holder. An upper blade is arranged above the lower blade. A movable cutter holder is fixedly connected above the upper blade. A cutter head main body is arranged above the upper blade. A guide groove is arranged on the left side wall of the cutter head main body. An adjustment component is arranged on the left side of the cutter head main body. A rotating part is fixedly arranged on the adjustment component. A spring guard is arranged inside the cutter head main body. A cutter head spring and a fixing nut are clamped above the cutter head main body. A main body upper cover is clamped on the top of the cutter head main body. An upper screw is threadedly connected to the top of the main body upper cover.

[0006] According to the described novel tooth pitch control mechanism for an electric hair clipper, the adjustment component includes an adjustment key, an adjustment slot, an inner spring, a gear shift latch, a cartridge, a small screw, a gear, a compression spring, a gasket, and a fixing screw. An adjustment slot is provided at the bottom of the adjustment key. The inner spring and the gear shift latch are clamped inside the adjustment slot. The inner spring is located on the right side of the gear shift latch. A cartridge is clamped inside the adjustment slot. The bottom of the cartridge is threadedly connected to the small screw. A gear, a compression spring, and a gasket are arranged inside the adjustment key, and are distributed in sequence from right to left. A fixing screw is threadedly connected to the left side wall of the adjustment key.

[0007] According to the described novel tooth pitch control mechanism for an electric hair clipper, the rotating member is located on the right side of the adjustment key and is inside the guide slot.

[0008] According to the described novel tooth pitch control mechanism for an electric hair clipper, the fixing screw passes through the upper and lower limit slots and the cutter head body and is threadedly connected to the fixing nut. The fixing screw passes through the gear, the compression spring, and the gasket and is connected to the adjustment key.

[0009] According to the described novel tooth pitch control mechanism for an electric hair clipper, sliding grooves are provided on the left and right sides of the cutter head body, and the guide rail is inside the sliding grooves. This facilitates the movement of the fixed cutter holder.

[0010] According to the described novel tooth pitch control mechanism for an electric hair clipper, the cartridge is fixedly connected to the adjustment key through the small screw, and the gear shift latch meshes with the gear. This facilitates adjustment.

[0011] According to the described novel tooth pitch control mechanism for an electric hair clipper, the fixed cutter holder is fixedly connected to the lower cutter through a lower screw. The anti-winding spring is located in front of the movable cutter holder. The movable cutter holder is clamped with the cutter head spring. The cutter head spring and the fixing nut are located below the main body upper cover. The main body upper cover is fixedly connected to the cutter head body through an upper screw. The connections between all components adopt detachable installation, which facilitates the cleaning of the interior.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] 1. By providing the adjustment key, the adjustment slot, the inner spring, the gear shift latch, the cartridge, the small screw, the gear, the compression spring, the gasket, and the fixing screw, when the adjustment key rotates, it drives the gear shift latch to slide from one tooth groove of the gear into another tooth groove. The gear shift latch collides with the left and right walls of the cartridge under the pressure of the inner spring, producing a clear and pleasant gear sound. At the same time, it cooperates with the tooth grooves of the gear to achieve the gear self-locking function.

[0014] 2. By setting the lower blade, fixed tool rest, guide rail, upper and lower limit slots, upper blade, movable tool rest, tool head body, guide slot, anti-wind-up spring, tool head spring, fixing nut, main body upper cover, upper screw and lower screw, each component of the tool head can be disassembled, facilitating the cleaning of the interior.

[0015] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. Brief Description of the Drawings

[0016] The following further describes the present utility model in conjunction with the drawings and embodiments;

[0017] Figure 1 is the front view of a novel tooth pitch control mechanism for an electric hair clipper of the present utility model;

[0018] Figure 2 is the exploded view of a novel tooth pitch control mechanism for an electric hair clipper of the present utility model;

[0019] Figure 3 is the exploded structural view of the adjustment assembly of a novel tooth pitch control mechanism for an electric hair clipper of the present utility model;

[0020] Figure 4 is the sectional view of the adjustment assembly of a novel tooth pitch control mechanism for an electric hair clipper of the present utility model;

[0021] Figure 5 is the sectional view of a novel tooth pitch control mechanism for an electric hair clipper of the present utility model.

[0022] In the figure: 1. Lower blade; 2. Fixed tool rest; 3. Guide rail; 4. Upper and lower limit slots; 5. Upper blade; 6. Movable tool rest; 7. Tool head body; 8. Guide slot; 9. Adjustment assembly; 10. Rotating part; 11. Anti-wind-up spring; 12. Tool head spring; 13. Fixing nut; 14. Main body upper cover; 15. Upper screw; 16. Lower screw;

[0023] 901. Adjustment key; 902. Adjustment slot; 903. Inner spring; 904. Gear position buckle; 905. Card box; 906. Small screw; 907. Gear; 908. Compression spring; 909. Gasket; 910. Fixing screw. Detailed Description of the Embodiments

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-5 , the present utility model provides a technical solution: a new type of electric clipper tooth pitch control mechanism, comprising: a lower blade 1 and an upper blade 5. Above the lower blade 1, a fixed tool rest 2 is provided. At the bottom of the lower blade 1, two lower screws 16 are threadedly connected. The fixed tool rest 2 and the lower blade 1 are fixedly connected through the lower screws 16. Guide rails 3 are fixedly provided on both the left and right sides of the fixed tool rest 2. An upper and lower limit groove 4 is provided on the left side wall of the fixed tool rest 2 for limiting the rotating member 10. Above the lower blade 1, an upper blade 5 is provided. Above the upper blade 5, a movable tool rest 6 is fixedly connected. Above the upper blade 5, a tool head main body 7 is provided. A guide groove 8 is provided on the left side wall of the tool head main body 7. Chute grooves are provided on both the left and right sides of the tool head main body 7. The guide rails 3 are located inside the chute grooves, enabling the tool head main body 7 to be connected through the guide rails 3 on the fixed tool rest 2. On the left side of the tool head main body 7, an adjustment assembly 9 is provided. A rotating member 10 is fixedly provided on the adjustment assembly 9. The rotating member 10 is located on the right side of the adjustment key 901. The rotating member 10 is located inside the guide groove 8, enabling the adjustment key 901 to rotate within a certain angle range. When the adjustment key 901 rotates, it abuts against the guide groove 8 on the fixed tool rest 2 through the rotating member 10, thereby causing the fixed tool rest 2 to move back and forth along the chute groove of the tool head main body 7. Inside the tool head main body 7, a hair prevention spring 11 is provided. The hair prevention spring 11 is located in front of the movable tool rest 6. The lower end of the hair prevention spring 11 abuts against the upper blade 5 to prevent hair from entering the interior. Above the tool head main body 7, a tool head spring 12 and a fixing nut 13 are snap-connected. The movable tool rest 6 is snap-connected with the tool head spring 12. The tool head spring 12 and the fixing nut 13 are located below the main body upper cover 14. The top of the tool head main body 7 is snap-connected with the main body upper cover 14. On the top of the main body upper cover 14, an upper screw 15 is threadedly connected. The main body upper cover 14 and the tool head main body 7 are fixedly connected through the upper screw 15.

[0026] The adjusting component 9 includes an adjusting key 901, an adjusting slot 902, an inner spring 903, a gear buckle 904, a card box 905, a small screw 906, a gear 907, a compression spring 908, a gasket 909 and a fixing screw 910. The adjusting key 901 is provided with an adjusting slot 902 at the bottom, the inner spring 903 and the gear buckle 904 are clamped inside the adjusting slot 902, the inner spring 903 is located on the right side of the gear buckle 904, the card box 905 is clamped inside the adjusting slot 902, the bottom of the card box 905 is threadedly connected with a small screw 906, the adjusting key 901 is provided with a gear 907, a compression spring 908 and a gasket 909, the gear 907, the compression spring 908 and the gasket 909 are arranged from right to left in sequence, and the card box 905 is provided with a small screw 906 at the bottom. The box 905 is fixedly connected to the adjustment key 901 by a small screw 906, and the gear buckle 904 is meshed with the gear 907. When the adjustment key 901 rotates, it drives the gear buckle 904 to slide from one tooth groove of the gear 907 to another tooth groove. Under the pressure of the inner spring 903, the gear buckle 904 collides with the left and right walls of the card box 905 to produce a crisp and pleasant gear sound, and at the same time cooperates with the tooth groove of the gear 907 to play a gear self-locking function. A fixing screw 910 is threadedly connected on the left side wall of the adjustment key 901, and the fixing screw 910 passes through the upper and lower limit grooves 4 and the cutter head body 7 and is threadedly connected with the fixing nut 13. The fixing screw 910 passes through the gear 907, the compression spring 908, the gasket 909 and the adjustment key 901.

[0027] Working principle: the adjustment component 9 is connected to the cutter head body 7 through the fixing screw 910, the rotating member 10 passes through the upper and lower limit grooves 4 and is located inside the guide groove 8. When the adjustment key 901 is rotated, the rotating member 10 is pressed against the guide groove 8 on the fixed cutter holder 2, so that the fixed cutter holder 2 moves back and forth along the slide groove of the cutter head body 7 to cut hair. When the adjustment key 901 is rotated, the gear buckle 904 is driven to slide from one tooth groove of the gear 907 to another tooth groove. The gear buckle 904 collides with the left and right walls of the card box 905 under the pressure of the inner spring 903 to produce a crisp and pleasant gear sound, and at the same time cooperates with the tooth groove of the gear 907 to achieve a gear self-locking function.

[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A novel tooth pitch control mechanism for an electric hair clipper, comprising: The lower knife (1) and the upper knife (5), characterized in that a fixed tool holder (2) is arranged above the lower knife (1), the bottom of the lower knife (1) is threadedly connected with lower screws (16), the number of the lower screws (16) is two, guide rails (3) are fixedly arranged on both the left and right sides of the fixed tool holder (2), an upper and lower limit groove (4) is arranged on the left side wall of the fixed tool holder (2), an upper knife (5) is arranged above the lower knife (1), a movable tool holder (6) is fixedly connected above the upper knife (5), a tool head main body (7) is arranged above the upper knife (5), a guide groove (8) is arranged on the left side wall of the tool head main body (7), an adjusting assembly (9) is arranged on the left side of the tool head main body (7), a rotating member (10) is fixedly arranged on the adjusting assembly (9), an anti-winding spring (11) is arranged inside the tool head main body (7), a tool head spring (12) and a fixing nut (13) are clamped above the tool head main body (7), a main body upper cover (14) is clamped on the top of the tool head main body (7), and an upper screw (15) is threadedly connected to the top of the main body upper cover (14).

2. The novel tooth pitch control mechanism of an electric hair clipper according to claim 1, characterized in that: The adjusting assembly (9) includes an adjusting key (901), an adjusting groove (902), an inner spring (903), a gear stop (904), a cartridge case (905), a small screw (906), a gear (907), a compression spring (908), a gasket (909) and a fixing screw (910). An adjusting groove (902) is arranged at the bottom of the adjusting key (901), an inner spring (903) and a gear stop (904) are clamped inside the adjusting groove (902), the inner spring (903) is located on the right side of the gear stop (904), a cartridge case (905) is clamped inside the adjusting groove (902), the bottom of the cartridge case (905) is threadedly connected with a small screw (906), a gear (907), a compression spring (908) and a gasket (909) are arranged inside the adjusting key (901), the gear (907), the compression spring (908) and the gasket (909) are distributed in sequence from right to left, and a fixing screw (910) is threadedly connected to the left side wall of the adjusting key (901).

3. A novel tooth pitch control mechanism for an electric hair clipper as described in claim 1, characterized in that: The fixed tool holder (2) and the lower knife (1) are fixedly connected through the lower screws (16), the anti-winding spring (11) is located in front of the movable tool holder (6), the movable tool holder (6) is clamped with the tool head spring (12), the tool head spring (12) and the fixing nut (13) are located below the main body upper cover (14), and the main body upper cover (14) and the tool head main body (7) are fixedly connected through the upper screw (15).

4. The novel electric hair clipper tooth pitch control mechanism according to claim 2, characterized in that: The fixing screw (910) passes through the upper and lower limit groove (4) and the tool head main body (7) and is threadedly connected with the fixing nut (13), and the fixing screw (910) passes through the gear (907), the compression spring (908) and the gasket (909) and the adjusting key (901).

5. The novel tooth pitch control mechanism of an electric hair clipper according to claim 2, characterized in that: The cartridge case (905) and the adjusting key (901) are fixedly connected through the small screw (906), and the gear stop (904) is engaged with the gear (907).

6. The novel tooth pitch control mechanism of an electric hair clipper according to claim 1, wherein: The rotating member (10) is located on the right side of the adjusting key (901), and the rotating member (10) is located inside the guide groove (8).

7. The novel tooth pitch control mechanism of an electric hair clipper according to claim 1, wherein: Chute grooves are provided on the left and right sides of the cutter head body (7), and the guide rail (3) is located inside the chute grooves.

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