Comb cover adjusting self-locking structure and hair trimmer

Abstract

The utility model relates to hair trimming device field discloses a comb cover adjustment self -locking structure and hair trimmer. It includes comb cover body, adjustment assembly, elastic self -locking assembly and shell, and adjustment assembly is connected with comb cover body and synchronous movement, elastic self -locking assembly includes gear and locking piece, gear is connected with adjustment assembly rotation, and synchronous movement, the inside fixed connection of shell has rack, and rack and gear interlock, locking piece and adjustment assembly swing joint, are suitable for the rotation of gear locking or unlocking, when the pressure is added to adjustment assembly, will drive locking piece to remove the locking of gear, to promote adjustment assembly moves, when the pressure on adjustment assembly is cancelled, locking piece is automatically inserted in the gear corresponding tooth slot, to lock adjustment assembly and comb cover body of moving any distance. The utility model can operate the adjustment comb cover telescopic distance with one hand, and the telescopic length of comb cover body is adjusted and will pass through elastic self -locking assembly and is automatically locked.

Description

Technical Field

[0001] This utility model relates to the technical field of hair trimming devices, specifically to a comb sleeve adjustment self-locking structure and a hair trimmer. Background Technology

[0002] Hair trimmers are primarily used for trimming hair or body hair in daily life. Existing hair trimmers typically feature a sliding comb cover, which allows adjustment of the distance between the trimmer blades and the skin, thus achieving different hair lengths. The hair trimmer includes a locking mechanism and an adjustment mechanism. The adjustment mechanism controls the extension and retraction length of the comb cover, while the locking mechanism locks or unlocks the comb cover at the adjusted length. Additionally, a knob is mounted on the outer casing of the hair trimmer, connected to the adjustment mechanism, allowing adjustment of the comb cover's extension and retraction length by rotating the knob.

[0003] When trimming hair, sometimes you hold the comb with one hand, but when you need to adjust the length of the comb sleeve, you need to use both hands. One hand holds the hair trimmer, and the other hand adjusts the locking mechanism to unlock it. Then you turn the knob to adjust it. It is not possible to operate and adjust with one hand, which makes it inconvenient to adjust the length of the comb sleeve. Utility Model Content

[0004] To address at least one of the aforementioned problems, this utility model first provides a comb sleeve adjustment self-locking structure, including a comb sleeve body, an adjustment component, an elastic self-locking component, and a housing. The comb sleeve body and the adjustment component are slidably connected to the housing. The adjustment component is connected to the comb sleeve body and moves synchronously. One side of the adjustment component is exposed outside the housing for operation. The elastic self-locking component includes a gear and a locking member. The gear is rotatably connected to the adjustment component and moves synchronously. A rack is fixedly connected inside the housing, and the rack meshes with the gear. The locking member is movably connected to the adjustment component and is adapted to lock or unlock the rotation of the gear. When pressure is applied to the adjustment component, the locking member is driven to release the gear, thereby pushing the adjustment component to move the comb sleeve body freely along the length direction of the rack. When the pressure on the adjustment component is removed, the locking member automatically inserts into the corresponding tooth groove of the gear to lock the adjustment component and the comb sleeve body after moving any distance.

[0005] Optionally, the adjustment assembly includes a connecting frame that slides inside the housing, the connecting frame being detachably connected to the comb cover body and moving synchronously.

[0006] Optionally, the adjustment assembly includes a sliding bracket slidably disposed inside the housing, the comb body being connected to the sliding bracket and moving synchronously, and the gear and the locking member being rotatably connected to the sliding bracket and moving synchronously.

[0007] Optionally, a driving elastic element is connected to the locking member, and the driving elastic element causes the locking member to always tend to be inserted into the tooth groove.

[0008] Optionally, the elastic self-locking assembly further includes an unlocking press member, which is movably connected to the sliding bracket. The pressure on the adjusting assembly is applied to the unlocking press member, which drives the locking member to disengage from the tooth groove, thereby unlocking.

[0009] Optionally, the sliding bracket is provided with a reset elastic element. When the pressure on the adjusting component is removed, the reset elastic element drives the unlocking pressing element to rotate and reset, so that the locking element is inserted into the corresponding tooth groove.

[0010] Optionally, the adjustment assembly further includes a top cover connected to the top of the sliding bracket and moving synchronously with the sliding bracket. The top cover is exposed outside the housing. The top cover is provided with a flexible deformable element. The unlocking press is located below the flexible deformable element and in contact with the unlocking press. When the flexible deformable element is subjected to pressure, it will be recessed so that the pressure is applied to the unlocking press, driving the unlocking press to rotate.

[0011] Optionally, the side wall of the locking member is fixedly provided with a bent support foot, which contacts the unlocking pressing member. When unlocking, the unlocking pressing member rotates and drives the bent support foot to disengage the locking member from the tooth groove.

[0012] Optionally, the housing is provided with a drive spring and a top ball, and the adjustment component is provided with multiple gear slots. The multiple gear slots are arranged at intervals along the moving direction of the adjustment component. The drive spring drives the top ball to be inserted into any of the gear slots so that the adjustment component produces a gear feel when it moves.

[0013] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0014] 1. When adjusting the telescopic length of the comb body, hold the hair trimmer with one hand, place your thumb on the adjustment component and apply pressure to the adjustment component to release the locking component of the elastic self-locking component on the comb body. Then, push or pull the adjustment component with your thumb to move it. The adjustment component will then move the comb body. It can be operated with one hand and is convenient. After the comb body has moved any distance, as long as you release the pressure applied to the adjustment component, the elastic self-locking component will automatically lock the movement of the adjustment component and the comb body. During the hair trimming process, the comb body will not move relative to the adjustment component due to resistance, which improves the stability of the comb body after adjustment.

[0015] 2. The flexible deformable part can not only cover the through groove of the flexible pressing part, ensuring the aesthetic appearance, but also can be concave after being pressed, so that the pressing pressure is applied to the unlocking pressing part, driving the locking part to disengage from the tooth groove and realize unlocking. At the same time, the flexible deformable part also provides visual guidance for the operator, helping the operator to intuitively and accurately press the thumb on the location of the unlocking pressing part.

[0016] 3. The gear and rack are in a mechanical meshing state, while the rack is in a fixed state. Therefore, only when the gear and rack are meshed and rotate freely can the adjusting component drive the comb body to move. The elastic self-locking structure locks the rotation of the gear, and the meshing of the rack and gear will also form a limit on the rotation of the gear, which improves the stability when locking the adjusting component.

[0017] 4. The locking part is rotatably connected to the sliding bracket. When the unlocking pressing part is pressed, it can drive the locking part to rotate, so that the locking part can be disengaged from the tooth groove. This prevents stress concentration when the locking part is unlocked, thus preventing the locking part from breaking due to stress concentration and improving the overall service life.

[0018] 5. When the force applied to the flexible deformable part is removed, the locking part will automatically insert into the corresponding slot under the action of the driving elastic part to lock the rotation of the gear, thereby locking the movement of the adjustment component and the comb body. At the same time, the unlocking press part will automatically rotate and reset under the action of the reset elastic part for the next press. The overall operation is convenient and semi-automatic.

[0019] In addition, this utility model provides a hair trimmer, including the comb sleeve adjustment self-locking structure as described above.

[0020] Compared with the prior art, the hair trimmer described in this utility model has the same advantages as the above-mentioned comb adjustment self-locking structure, which will not be repeated here. Attached Figure Description

[0021] Figure 1 This is an exploded view of the comb sleeve adjustment self-locking structure in an embodiment of this utility model;

[0022] Figure 2 This is a cross-sectional view of the comb sleeve adjustment self-locking structure in an embodiment of this utility model;

[0023] Figure 3 This is an exploded view of the comb body, adjusting component, and elastic self-locking component in an embodiment of this utility model;

[0024] Figure 4 This is an exploded view of the adjusting component and the elastic self-locking component in the embodiments of this utility model;

[0025] Figure 5 This is a diagram showing the meshing structure of the gear, locking plate, and rack in an embodiment of this utility model;

[0026] Figure 6 The structure of the sliding bracket and the elastic self-locking assembly in the embodiments of this utility model. Figure 1 ;

[0027] Figure 7 The structure of the sliding bracket and the elastic self-locking assembly in the embodiments of this utility model. Figure 2 .

[0028] Explanation of reference numerals in the attached drawings: 1. Comb body; 2. Adjustment assembly; 21. Connecting frame; 211. Snap-fit ​​groove; 22. Sliding bracket; 221. Snap-fit ​​foot; 222. Connecting shaft; 223. Insertion shaft; 224. Fixed shaft; 225. Hook post; 226. Gear slot; 23. Top cover; 24. Flexible deformable component; 3. Elastic self-locking assembly; 31. Gear; 32. Locking component; 33. Unlocking press component; 34. Reset elastic component; 35. Drive elastic component; 36. Ear plate; 37. Bending foot; 4. Rack; 41. Extension plate; 42. Drive spring; 43. Top ball; 5. Outer shell. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the following description is provided in conjunction with the appendix. Figure 1-7 This application will be described in further detail.

[0030] The accompanying drawings of this utility model embodiment provide a coordinate system XYZ, where the positive direction of the X-axis represents the right, the negative direction of the X-axis represents the left, the positive direction of the Y-axis represents the front, the negative direction of the Y-axis represents the back, the positive direction of the Z-axis represents the top, and the negative direction of the Z-axis represents the bottom.

[0031] In a first aspect, this utility model embodiment provides a comb sleeve adjustment self-locking structure, referring to... Figure 1 and Figure 2The comb sleeve adjustment self-locking structure includes a comb sleeve body 1, an adjustment component 2, an elastic self-locking component 3, and a housing 5. The comb sleeve body 1 and the adjustment component 2 are slidably connected to the housing 5. The adjustment component 2 is connected to the comb sleeve body 1 and moves synchronously. One side of the adjustment component 2 is exposed outside the housing 5 for operation. The elastic self-locking component 3 includes a gear 31 and a locking member 32. The gear 31 is rotatably connected to the adjustment component 2 and moves synchronously. A rack 4 is fixedly connected inside the housing 5, and the rack 4 meshes with the gear 31. The locking member 32 is movably connected to the adjustment component 2 and is suitable for locking or unlocking the rotation of the gear 31. When pressure is applied to the adjustment component 2, the locking member 32 will be driven to release the lock on the gear 31, thereby pushing the adjustment component 2 to move the comb sleeve body 1 freely along the length direction of the rack 4. When the pressure on the adjustment component 2 is removed, the locking member 32 automatically inserts into the corresponding tooth groove of the gear 31 to lock the adjustment component 2 and the comb sleeve body 1 after moving any distance.

[0032] When adjusting the telescopic length of the comb body 1, hold the hair trimmer with one hand, place your thumb on the adjustment component 2 and apply pressure to the adjustment component 2 to release the locking of the elastic self-locking component 3 on the comb body 1. Then push or pull the adjustment component 2 with your thumb to move it, and the adjustment component 2 will drive the comb body 1 to move. It can be operated with one hand and is convenient.

[0033] Reference Figures 1 to 3 The comb body 1 is inserted into the front end of the outer shell 5 and can move within the outer shell 5. The adjustment assembly 2 includes a connecting frame 21, a sliding bracket 22, and a top cover 23. The connecting frame 21 is located between the sliding bracket 22 and the comb body 1, and is snap-fitted to the comb body 1 and rotatably connected to the sliding bracket 22; the top cover 23 is snap-fitted to the top of the sliding bracket 22. The sliding bracket 22 moves inside the outer shell 5, and the top cover 23 is exposed outside the outer shell 5. The top of the top cover 23 has a through groove, and a flexible deformable element 24 is provided at the opening of the through groove. The flexible deformable element 24 is made of soft rubber, and the top cover 23 is made of hard plastic. The flexible deformable element 24 and the top cover 23 are integrally processed by a two-color injection molding process. When the flexible deformable part 24 is pressed, it will be recessed, which will drive the locking part 32 to release the rotation of the gear 31. Then, when a push or pull force is applied to the upper cover 23, the sliding bracket 22 will move synchronously with the upper cover 23 to drive the connecting frame 21 to move and drive the comb body 1 to move.

[0034] The comb sleeve body 1, inserted into the outer casing 5, has two interlocking grooves 211 at one end. The connecting frame 21, near the comb sleeve body 1, has two integrally formed interlocking legs 221, spaced apart. These legs interlock and engage with the two grooves 211, allowing the comb sleeve body 1 and connecting frame 21 to move synchronously. Furthermore, the interlocking connection between the comb sleeve body 1 and connecting frame 21 makes it easier to disassemble and replace the comb sleeve body 1 when a different type needs to be used.

[0035] Reference Figures 1 to 3 The front of the outer shell 5 is arc-shaped, making hair trimming more convenient. The connecting frame 21 moves inside the arc-shaped front part of the outer shell 5. Therefore, the comb body 1 has a rotating hole on the side near the sliding bracket 22. The sliding bracket 22 has an integrally formed connecting shaft 222. The connecting shaft 222 is rotatably inserted into the rotating hole, so that the sliding bracket 22 and the connecting frame 21 can rotate relative to each other. This makes it easier for the sliding bracket 22 to push the connecting frame 21 during movement, and it is less likely to get stuck.

[0036] Reference Figures 2 to 4 The sliding bracket has an internal mounting groove, within which the gear 31 is located. A through-hole is formed on the side wall of the sliding bracket, extending through the bracket and communicating with the mounting groove. A connecting shaft 223 is inserted into the through-hole, and the gear 31 is fitted onto and rotatably connected to the shaft 223. Both ends of the connecting shaft 223 protrude from the through-hole and are cantilevered, abutting against the two inner walls of the outer casing 5, preventing movement during use. A rack 4 is bolted to the interior of the outer casing 5, positioned below the gear 31, and meshes with it. When the sliding bracket 22 moves, it drives the gear 31 to move synchronously. Due to the meshing of the rack 4 and gear 31, the gear 31 rotates relative to the sliding bracket 22 during movement.

[0037] Since gear 31 and rack 4 are meshed together, and gear 31 and sliding bracket 22 move synchronously, the rotation of gear 31, once locked by locking member 32, cannot push sliding bracket 22 to move, thus locking the movement of sliding bracket 22, connecting frame 21, and comb sleeve body 1. This improves the stability of locking comb sleeve body 1 after movement adjustment.

[0038] Reference Figures 2 to 5The elastic self-locking assembly 3 also includes an unlocking press 33. Both the locking member 32 and the unlocking press 33 are rotatably connected to the sliding bracket 22. Both are located near the tail of the sliding bracket 22 and move synchronously with it. The locking member 32 is adapted to be inserted into any of the tooth slots of the gear 31 to lock the rotation of the gear 31, or to disengage from the tooth slot to unlock. The unlocking press 33 is located within the through slot and below the flexible deformable member 24, abutting against it. When pressure is applied to the flexible deformable member 24, the unlocking press 33 is driven to rotate. This rotation causes the locking member 32 to rotate, completely disengaging it from the tooth slot and unlocking it. Afterward, pushing or pulling the top cover 23 will drive the sliding bracket 22 to move the connecting frame 21 and the comb body 1.

[0039] In detail, the unlocking press 33 is rotatably sleeved on the protruding through hole of the insertion shaft 223 in a cantilevered state, allowing the unlocking press 33 to rotate around the insertion shaft 223 as its axis of rotation. A reset elastic element 34 is connected to the unlocking press plate. When the pressing force applied to the unlocking press 33 is released, the reset elastic element 34 drives the unlocking press 33 to automatically rotate and reset. In this embodiment, the reset elastic element 34 is preferably a torsion spring. In another embodiment, the reset elastic element 34 can be a spring or a V-shaped spring sheet. The torsion spring is sleeved on the insertion shaft 223, with one side contacting and pressing against the unlocking press 33; the other side contacts and presses against the sliding bracket 22. After the unlocking press 33 rotates under the pressing force, it drives the torsion spring to deform and generate elastic potential energy. Therefore, when the pressing force on the unlocking press 33 disappears, the torsion spring drives the unlocking press 33 to automatically rotate and reset.

[0040] Reference Figures 2 to 5 A fixed shaft 224 is integrally formed on the sliding bracket 22, and the locking member 32 is rotatably sleeved on the fixed shaft 224, so that the locking member 32 is rotatably connected to the sliding bracket 22. A driving elastic member 35 is connected to the locking member 32, and the driving elastic member 35 drives the locking member 32 to always tend to be inserted into the tooth groove.

[0041] Reference Figures 2 to 7The driving elastic element 35 is a tension spring. The locking element 32 has an integrally bent lug plate 36 on the side away from the sliding bracket 22 and connected to the connecting frame 21. The lug plate 36 has a hook hole, and one side of the tension spring is hooked to the lug plate 36 through the hook hole. A hook post 225 is interference-fitted onto the sliding bracket 22, located above the lug plate 36. The side of the tension spring away from the lug plate 36 is hooked to the hook post 225. In other embodiments, the driving elastic element 35 can be a spring sheet. The side wall of the locking element 32 has an integrally bent bent support leg 37, which contacts the unlocking press 33. During unlocking, the unlocking press 33 rotates under pressure, causing the bent support leg 37 to rotate, which in turn rotates the entire locking element 32, causing it to disengage from the toothed groove. At this time, the tension spring is under tension due to the pull of the lug plate 36. When the pressing force on the unlocking button 33 is released, the tension spring will automatically drive the locking part 32 to rotate and reset, so that the locking part 32 is inserted into the corresponding tooth groove to lock the rotation of the gear 31.

[0042] Reference Figures 2 to 7 An extension plate 41 is integrally formed on the side of the rack 4 near the connecting frame 21, extending upwards. A spring groove is formed at the top of the extension plate 41, and a drive spring 42 is placed inside the spring groove. A top ball 43 is connected to the top of the drive spring 42, and the top ball 43 is located within the spring groove. The two ends of the drive spring 42 abut against the bottom of the spring groove and the top ball 43, respectively. Multiple gear slots 226 are formed on the sliding bracket 22, located above the top ball 43. The multiple gear slots 226 are arranged at intervals along the moving direction of the sliding bracket 22. The drive spring 42 drives the top ball 43 to be inserted into any gear slot 226, with the top end of the top ball 43 located within the gear slot 226 and the bottom end within the spring groove. When the sliding bracket 22 is moved and adjusted, the top ball 43 can be sequentially inserted into multiple gear slots 226 within the adjustment range, producing a gear shift feel. The top of the top bead 43 is spherical, so when the sliding bracket 22 moves, the top bead 43 can smoothly detach from the corresponding gear slot 226 and enter the adjacent gear slot 226.

[0043] The implementation principle of the self-locking structure for adjusting the comb cover in this embodiment is as follows: When adjusting the telescopic length of the comb cover body 1, hold the hair trimmer shell 5 with one hand, place your thumb on the flexible deformable part 24 and apply pressure to the flexible deformable part 24. The flexible deformable part 24 will then be concave, so that the pressing pressure acts on the unlocking pressing part 33, driving the unlocking pressing part 33 to rotate. After the unlocking pressing part 33 rotates, it will drive the bent support leg 37 to rotate, and then drive the entire locking part 32 to rotate, so that the locking part 32 disengages from the tooth groove. Then, push or pull the upper cover 23 with your thumb. The upper cover 23 drives the sliding bracket 22, the connecting bracket 21 and the comb cover body 1 to move. The gear 31 will rotate under the action of the rack 4, so that the telescopic length of the comb cover body 1 is adjusted.

[0044] After adjusting the telescopic distance of the comb body 1, release the thumb to remove the pressure applied to the flexible deformable element 24. The reset elastic element 34 drives the unlocking pressing element 33 to rotate and reset. At the same time, the locking element 32 will automatically rotate and reset under the action of the driving elastic element 35 and insert into the corresponding slot to lock the rotation of the gear 31. Since the gear 31 and the rack 4 are meshed, and the gear 31 and the sliding bracket 22 move synchronously, the movement of the sliding bracket 22 is locked, thereby locking the movement of the comb body 1.

[0045] Secondly, another embodiment of the present invention provides a hair trimmer, including the comb adjustment self-locking structure described in the first aspect above.

[0046] Similarly, the components included in the "components," "mechanisms," and "devices" of this disclosure can also be flexibly combined. They can be modularly produced according to actual needs and assembled as an independent module; or they can be assembled separately to form a module in this device. The division of the above-mentioned components in this disclosure is only one embodiment for ease of reading and is not intended to limit the scope of protection of this disclosure. Any technical solution that includes the above-mentioned components and has the same function should be understood as an equivalent technical solution of this disclosure.

[0047] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0048] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0050] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] It should be noted that when a component is referred to as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to another component," it can be directly connected to the other component or there may be an intervening component. Furthermore, when a component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in conventional technologies and will not be elaborated upon here.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above embodiments are merely illustrative of several implementation methods of this disclosure, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this disclosure, and these modifications and improvements all fall within the protection scope of this disclosure.

Claims

1. A structure for adjusting and self-locking a hairpin, characterized by: The assembly includes a comb body (1), an adjusting component (2), an elastic self-locking component (3), and a housing (5). The comb body (1) and the adjusting component (2) are slidably connected to the housing (5). The adjusting component (2) is connected to the comb body (1) and moves synchronously. One side of the adjusting component (2) is exposed outside the housing (5) for operation. The elastic self-locking component (3) includes a gear (31) and a locking element (32). The gear (31) is rotatably connected to the adjusting component (2) and moves synchronously. A rack (4) is fixedly connected inside the housing (5), and the rack (4) is engaged with the gear (31). The locking member (32) is movably connected to the adjusting component (2) and is adapted to lock or unlock the rotation of the gear (31). When pressure is applied to the adjusting component (2), the locking member (32) will be driven to release the lock on the gear (31), so as to push the adjusting component (2) to drive the comb body (1) to move freely along the length direction of the rack (4). When the pressure on the adjusting component (2) is removed, the locking member (32) is automatically inserted into the tooth groove corresponding to the gear (31) to lock the adjusting component (2) and the comb body (1) that have moved any distance.

2. The interlocking structure of claim 1, wherein: The adjustment component (2) includes a connecting frame (21) that slides inside the outer casing (5). The connecting frame (21) is detachably connected to the comb body (1) and moves synchronously.

3. The interlocking structure of claim 1, wherein: The adjustment component (2) includes a sliding bracket (22) that is slidably disposed inside the outer shell (5). The comb body (1) is connected to the sliding bracket (22) and moves synchronously. The gear (31) and the locking member (32) are both rotatably connected to the sliding bracket (22) and move synchronously.

4. The interlock structure of claim 3, wherein: The locking member (32) is connected to a driving elastic member (35), which drives the locking member (32) to always have the tendency to be inserted into the tooth groove.

5. The interlocking structure of claim 3, wherein: The elastic self-locking component (3) further includes an unlocking press (33), which is movably connected to the sliding bracket (22). The pressure on the adjusting component (2) will act on the unlocking press (33), and the unlocking press (33) will drive the locking component (32) to disengage from the tooth groove, thereby unlocking.

6. The interlocking structure of claim 5, wherein: The sliding bracket (22) is provided with a reset elastic element (34). When the pressure on the adjusting component (2) is removed, the reset elastic element (34) drives the unlocking press (33) to rotate and reset, so that the locking element (32) is inserted into the corresponding tooth groove.

7. The interlock structure of claim 5, wherein: The adjustment assembly (2) also includes an upper cover (23), which is connected to the top of the sliding bracket (22) and moves synchronously with the sliding bracket (22). The upper cover (23) is exposed to the outside of the outer shell (5). The upper cover (23) is provided with a flexible deformable element (24). The unlocking press (33) is located below the flexible deformable element (24) and is in contact with the unlocking press (33). When the flexible deformable element (24) is subjected to pressure, it will be concave so that the pressure is applied to the unlocking press (33) and drives the unlocking press (33) to rotate.

8. The interlock structure of claim 5, wherein: The side wall of the locking member (32) is fixedly provided with a bent support leg (37). The bent support leg (37) is in contact with the unlocking press member (33). When unlocking, the unlocking press member (33) rotates and drives the bent support leg (37) to drive the locking member (32) out of the tooth groove.

9. The tuck adjustment self-locking structure according to any one of claims 1-8, wherein: The housing (5) is provided with a drive spring (42) and a top ball (43). The adjustment component (2) is provided with a plurality of gear slots (226). The plurality of gear slots (226) are arranged at intervals along the moving direction of the adjustment component (2). The drive spring (42) drives the top ball (43) to be inserted into any of the gear slots (226) so that the adjustment component (2) generates a gear feel when it moves.

10. A hair trimmer characterized by Includes the comb sleeve adjustment self-locking structure as described in any one of claims 1-9.

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