Telescopic tool bit structure with beard discharging function and hair trimmer

By designing a telescopic knife head structure with whisker discharge function, the problem of scratching the skin and the gaps of the blades being blocked due to uneven skin during use is solved, achieving a more efficient, comfortable and safe shaving effect.

CN223013244UActive Publication Date: 2025-06-24NINGBO JIANGBEI KAIYI E-COMMERCE CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422236698.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-12
Publication Date
2025-06-24
Estimated Expiration
2034-09-12

AI Technical Summary

Technical Problem

During use, existing razors are prone to scratch the skin due to unevenness on the skin surface, and when there are more hair, the gaps in the blades are easily blocked, affecting the shaving efficiency and user experience.

Method used

A telescopic cutter head structure with whisker function is designed, including a tool holder assembly, a blade assembly and a whisker assembly. The blade assembly and the tool holder assembly are connected through an elastic component to achieve up and down telescopicity. The whisker assembly can be moved under the action of external force to discharge blocked hair.

Benefits of technology

Through the telescopic connection design, the blade can float flexibly, adapt to the concave and bumps on the skin surface and reduce skin scratches; the moving design of the whisker assembly can quickly remove blocked hair, keep the blade clean and sharp, and improve shaving comfort, safety and efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223013244U_ABST
    Figure CN223013244U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of hair trimmers, and discloses a telescopic tool bit structure with a beard arrangement function and a hair trimmer, the telescopic tool bit structure comprises a tool apron assembly, a blade assembly and a beard arrangement assembly, the beard arrangement assembly is movably connected between the tool apron assembly and the blade assembly, and the blade assembly and the tool apron assembly are connected in an up-down telescopic mode. Under the action of external force, the beard discharging assembly moves relative to the blade assembly so as to discharge hair blocked on the blade assembly. Due to the telescopic connection design between the blade assembly and the blade holder assembly, the blade can flexibly float during shaving, the shaver adapts to unevenness of the skin surface, skin scratching caused by uneven contact is prevented, and the shaving comfort and safety are improved; due to the movable design of the beard discharging assembly, hair blocked on the blade assembly can be rapidly discharged under the action of external force, and the continuity and high efficiency of the shaving process are ensured.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of hair trimmers, and more specifically, to a telescopic cutter head structure with a whisker discharging function and a hair trimmer. Background Art

[0002] There are various types of razors on the market currently, which are widely used in daily life. However, when a razor encounters unevenness on the skin surface during use, it is prone to scratching the skin, resulting in discomfort and a decline in the user experience. In addition, for shaving requirements with a large amount of hair (such as shaving the head), the blade gaps of the razor are easily blocked by hair, affecting the shaving efficiency. After the hair is blocked, the cutter head needs to be cleaned frequently, which makes the shaving process cumbersome and affects the user experience. For this reason, there is a lack of products on the market that can simultaneously have a whisker discharging function and a telescopic cutter head design. Summary of the Utility Model

[0003] To solve at least one of the above problems, the utility model first provides a telescopic cutter head structure with a whisker discharging function, including a cutter base assembly, a blade assembly, and a whisker discharging assembly. The whisker discharging assembly is movably connected between the cutter base assembly and the blade assembly, and the blade assembly is telescopically connected to the cutter base assembly vertically. Under the action of an external force, the whisker discharging assembly moves relative to the blade assembly to discharge the hair blocked on the blade assembly.

[0004] Optionally, the cutter base assembly includes a cutter base body and a bottom cover. The cutter base body and the bottom cover are connected to each other to form an installation chamber for the movable installation of the blade assembly and the whisker discharging assembly. The installation chamber has an upper opening for the blade assembly to be exposed; an elastic component is provided between the cutter base assembly and the blade assembly, and the blade assembly is telescopically connected to the cutter base assembly vertically under the elastic force of the elastic component.

[0005] Optionally, a soap bar is installed on the circumferential edge of the upper opening. During the shaving process, the upper surface of the soap bar and the upper surface of the blade assembly always keep in contact with the skin under the elastic force of the elastic component.

[0006] Optionally, the elastic component includes a first spring and a second spring arranged at intervals. The upper and lower ends of the first spring are respectively connected to the blade assembly and the bottom cover, and the upper and lower ends of the second spring are respectively connected to the blade assembly and the bottom cover.

[0007] Optionally, the first spring and the second spring are respectively connected to the left and right sides of the blade assembly.

[0008] Optionally, the blade assembly is provided with a first connecting post and a second connecting post, the bottom cover is provided with a third connecting post and a fourth connecting post, the upper and lower ends of the first spring are respectively sleeved outside the first connecting post and the third connecting post, the upper and lower ends of the second spring are respectively sleeved outside the second connecting post and the fourth connecting post, the first connecting post is directly above the third connecting post, and the second connecting post is directly above the fourth connecting post.

[0009] Optionally, the blade assembly includes a tool rest and a plurality of blades mounted on the tool rest. The plurality of blades are arranged parallel to each other at intervals, and a cutting edge is provided on the front side of each blade. There is a gap that penetrates up and down in front of each cutting edge; the whisker discharging assembly includes a whisker discharging block. Under the action of an external force, the whisker discharging block moves upward relative to the blade to discharge the hair blocked in the gap.

[0010] Optionally, the whisker discharging block is provided with a plurality of push pieces arranged in parallel at intervals. The push pieces are arranged in one-to-one correspondence with the gaps. When the whisker discharging block moves upward relative to the blade under the action of an external force, the push pieces are inserted into the gaps to discharge the hair blocked in the gaps.

[0011] Optionally, the whisker discharging assembly further includes a button slidably connected to the tool rest assembly. The button is provided with a first guiding slope, and the whisker discharging block is provided with a second guiding slope adapted to cooperate with the first guiding slope. When an external force pushes the button forward, the first guiding slope abuts against the second guiding slope and pushes the whisker discharging block upward to discharge the hair blocked in the gap; it further includes a third spring, a fourth spring and a fifth spring. The upper and lower ends of the third spring and the fourth spring are respectively connected to the blade assembly and the whisker discharging block, and the front and rear ends of the fifth spring are respectively connected to the tool rest assembly and the button.

[0012] Compared with the prior art, in the retractable cutter head structure with the whisker discharging function of the present utility model, the retractable connection design between the blade assembly and the tool rest assembly enables the blade to flexibly float during shaving, adapt to the unevenness of the skin surface, and prevent skin scratches caused by uneven contact. The buffering effect of the retractable connection also effectively reduces the pressure on the skin during shaving, improves the comfort and safety of shaving; the movable design of the whisker discharging assembly can quickly discharge the hair blocked on the blade assembly under the action of an external force, keep the blade always clean and sharp, ensure the coherence and high efficiency of the shaving process, reduce the cleaning frequency, and improve the convenience of use.

[0013] In addition, the present utility model provides a hair trimmer, which includes the retractable cutter head structure with the whisker discharging function as described above.

[0014] Compared with the prior art, the hair trimmer of the present utility model has the same advantages as the above-mentioned retractable cutter head structure with a whisker discharging function compared with the prior art, which will not be elaborated herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the retractable cutter head structure with a whisker discharging function according to an embodiment of the present utility model;

[0016] Figure 2 It is a cross-section of the retractable cutter head structure with a whisker discharging function according to an embodiment of the present utility model Figure 1 ;

[0017] Figure 3 It is a cross-section of the retractable cutter head structure with a whisker discharging function according to an embodiment of the present utility model Figure 2 ;

[0018] Figure 4 It is a structural diagram of the cutter base assembly according to an embodiment of the present utility model;

[0019] Figure 5 It is a structural diagram of the whisker discharging assembly according to an embodiment of the present utility model.

[0020] DESCRIPTION OF THE REFERENCE NUMERALS:

[0021] 1. Cutter base assembly; 11. Cutter base body; 12. Bottom cover; 121. Third connecting column; 122. Fourth connecting column; 13. Installation bin; 14. Soap bar; 2. Blade assembly; 21. Knife rest; 211. First connecting column; 212. Second connecting column; 22. Blade; 23. Gap; 3. Whisker discharging assembly; 31. Whisker discharging block; 311. Pushing piece; 312. Second guiding slope; 32. Button; 321. First guiding slope; 41. First spring; 42. Second spring; 5. Third spring; 6. Fourth spring; 7. Fifth spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to make the above-mentioned objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given with reference to the accompanying drawings.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship during the normal use of the product.

[0024] The terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the drawings of the embodiments of the present utility model, a coordinate system XYZ is provided, wherein the positive direction of the X-axis represents the left side, the negative direction of the X-axis represents the right side, the positive direction of the Y-axis represents the front side, the negative direction of the Y-axis represents the rear side, the positive direction of the Z-axis represents the upper side, and the negative direction of the Z-axis represents the lower side.

[0025] An embodiment of the present utility model provides a retractable cutter head structure with a whisker discharging function, which combines Figures 1 to 5 As shown, it includes a cutter base assembly 1, a blade assembly 2, and a whisker discharging assembly 3. The whisker discharging assembly 3 is movably connected between the cutter base assembly 1 and the blade assembly 2. Preferably, an elastic assembly is provided between the cutter base assembly 1 and the blade assembly 2. The blade assembly 2 is vertically telescopically connected to the cutter base assembly 1 under the elastic force of the elastic assembly. Under an external force, the whisker discharging assembly 3 moves relative to the blade assembly 2 to discharge the hair clogged on the blade assembly 2.

[0026] Among them, the cutter base assembly 1 is used to install and fix the blade assembly 2 and the whisker discharging assembly 3. The cutter base assembly 1 may be provided with guide rails or guide grooves for guiding the movement of the blade assembly 2 and the whisker discharging assembly 3, so as to achieve smooth telescopic and moving in the designed direction; the blade assembly 2 is usually composed of a plurality of sharp blade assemblies 2 to ensure efficient and clean shaving effect. The blade assembly 2 is installed on the cutter base assembly 1 and is connected to the cutter base assembly 1 through an elastic assembly to achieve the telescopic function of up and down floating; the elastic assembly is arranged between the cutter base assembly 1 and the blade assembly 2 and is usually composed of a spring or other elastic materials for providing a certain elastic force to enable the blade assembly 2 to perform up and down telescopic movement relative to the cutter base assembly 1 during shaving; the whisker discharging assembly 3 is connected to the cutter base assembly 1 and the blade assembly 2 through a guide rail or a sliding mechanism and can move relative to the blade assembly 2 under an external force. During shaving, when hair accumulates between the blades 22, the whisker discharging assembly 3 can move relative to the blade assembly 2 by the trigger of an external force (such as a manual button 32 or a push-pull mechanism, etc.) to timely remove the hair clogged on the blade assembly 2.

[0027] In the retractable cutter head structure with a whisker discharging function in this embodiment, the retractable connection design between the blade assembly 2 and the cutter base assembly 1 enables the blade 22 to float flexibly during shaving, adapting to the unevenness of the skin surface, preventing skin scratches caused by uneven contact. The buffering effect of the elastic component also effectively reduces the pressure on the skin during shaving, improving the comfort and safety of shaving; the movable design of the whisker discharging component 3 can quickly discharge the hair clogged on the blade assembly 2 under the action of an external force, keeping the blade 22 always clean and sharp, ensuring the coherence and efficiency of the shaving process, reducing the cleaning frequency, and enhancing the usability.

[0028] Optionally, as shown in Figure 4 , the cutter base assembly 1 includes a cutter base body 11 and a bottom cover 12. The cutter base body 11 and the bottom cover 12 are connected to each other to form an installation chamber 13 for the movable installation of the blade assembly 2 and the whisker discharging component 3. The installation chamber 13 has an upper opening for the blade assembly 2 to be exposed.

[0029] Among them, a guide groove or a guide rail may be provided on the cutter base body 11 for the movable installation and movement of the blade assembly 2 and the whisker discharging component 3; an upper opening is formed at the top of the cutter base body 11 for the blade assembly 2 to be exposed, so that the blade 22 can directly contact the skin to achieve efficient shaving; the bottom cover 12 is fixed to the cutter base body 11 by means of threads, snap-fits or other connection methods, and the bottom cover 12 is adapted to be connected to the handle; the whisker discharging component 3 can move horizontally or vertically relative to the blade assembly 2 under the action of an external force to remove the hair clogged on the blade assembly 2.

[0030] Optionally, as shown in Figure 1 and Figure 4 , a soap bar 14 is installed on the circumferential edge of the upper opening. During the hair shaving process, the upper surface of the soap bar 14 and the upper surface of the blade assembly 2 always keep in contact with the skin under the elastic force of the elastic component.

[0031] Among them, the material of the soap bar 14 is preferably a material with lubricating and moisturizing properties, which can provide additional lubrication and moisturizing effects during the shaving process to reduce skin irritation and discomfort. In addition, the soap bar 14 also helps to soften the hair, making it easier for the blade 22 to cut the hair during shaving and improving the shaving effect; the soap bar 14 is installed on the circumferential edge of the upper opening and can be arranged around the outer periphery of the blade assembly 2 to ensure that it always covers the surrounding area of the blade 22 during the shaving process and can provide continuous lubrication for the skin during shaving; during the shaving process, the upper surface of the soap bar 14 and the upper surface of the blade assembly 2 always maintain close contact with the skin. When the user shaves the skin, the soap bar 14 will come into contact with the skin surface and release lubricating and moisturizing components. And since the blade assembly 2 can move up and down relative to the knife holder assembly 1, even when the soap bar 14 is consumed a lot, the blade assembly 2 will move downward under the force during the shaving process until the soap bar 14 touches the skin, ensuring that the soap bar 14 can always be in contact with the skin throughout the shaving process.

[0032] Optionally, in combination with Figure 2 As shown, the elastic component includes a first spring 41 and a second spring 42 which are arranged at intervals. The upper and lower ends of the first spring 41 are respectively connected to the blade assembly 2 and the bottom cover 12, and the upper and lower ends of the second spring 42 are respectively connected to the blade assembly 2 and the bottom cover 12. The blade assembly 2 is connected to the bottom cover 12 through the first spring 41 and the second spring 42 and can float relative to the knife holder body 11 under the action of elastic force; the first spring 41 and the second spring 42 are arranged at intervals, which can provide a uniform elastic force distribution during the shaving process to prevent the blade assembly 2 from tilting or shaking during the shaving process, and the structure is simple and reliable.

[0033] Optionally, in combination with Figure 2 As shown, the first spring 41 and the second spring 42 are respectively connected to the left and right sides of the blade assembly 2. The length of the blade assembly 2 in the left-right direction of the overall structure is greater than the width in the front-back direction. The blade assembly 2 is supported left and right by the first spring 41 and the second spring 42 and can maintain stable up and down floating during the shaving process, enabling the blade assembly 2 to make adaptive adjustments to different skin areas during the shaving process and making the shaving effect more uniform.

[0034] Optionally, in combination with Figure 2As shown, the blade assembly 2 is provided with a first connecting post 211 and a second connecting post 212, the bottom cover 12 is provided with a third connecting post 121 and a fourth connecting post 122. The upper and lower ends of the first spring 41 are respectively sleeved outside the first connecting post 211 and the third connecting post 121, and the upper and lower ends of the second spring 42 are respectively sleeved outside the second connecting post 212 and the fourth connecting post 122. The first connecting post 211 is directly above the third connecting post 121, and the second connecting post 212 is directly above the fourth connecting post 122.

[0035] Among them, since the upper and lower ends of the spring are respectively fixed on the corresponding connecting posts of the blade assembly 2 and the bottom cover 12, the blade assembly 2 can rely on the elastic force of the spring to float smoothly up and down during the shaving process. The arrangement of the connecting posts further ensures the smoothness of the blade assembly 2 during the floating process, avoiding the displacement or loosening of the spring during use, and ensuring the uniform and smooth shaving effect of the blade assembly 2; the up-and-down alignment design of the connecting posts enables the spring to perform orderly elastic expansion and contraction in the vertical direction during the shaving process, avoiding the shaking of the blade assembly 2 caused by the inclination or misalignment of the spring.

[0036] Optionally, as shown in Figure 1 , Figure 3 , Figure 5 the blade assembly 2 includes a knife holder 21 and a plurality of blades 22 installed on the knife holder 21. The plurality of blades 22 are arranged parallel to each other at intervals, and a cutting edge is provided on the front side of each blade 22, and a gap 23 that penetrates up and down is provided in front of each cutting edge; the whisker removing assembly 3 includes a whisker removing block 31, and under the action of an external force, the whisker removing block 31 moves upward relative to the blade 22 to discharge the hair blocked in the gap 23.

[0037] Among them, the knife holder 21, as the supporting structure of the blade 22, can firmly fix the plurality of blades 22 and ensure the parallel and spaced arrangement of the blades 22; the plurality of blades 22 are arranged parallel to each other at intervals, enabling each blade 22 to work independently and providing a more uniform shaving effect. A cutting edge is provided on the front side of each blade 22 for cutting hair; the design of the gap 23 enables the hair shaved during the shaving process to smoothly enter and stay in these gaps 23. The gap 23 that penetrates up and down facilitates the movement of the whisker removing block 31 to remove the blocked hair. The external force makes the whisker removing block 31 move upward, pushing the blocked hair out of the gap 23 to ensure the smoothness of the shaving process and the cleanliness of the blade 22; the external force can be provided manually by the user or by an electric mechanical structure.

[0038] Optionally, as shown in Figure 1 , Figure 3 , Figure 5As shown, the whisker-removing block 31 is provided with a plurality of pushing pieces 311 arranged in parallel at intervals, and the pushing pieces 311 are arranged in one-to-one correspondence with the gaps 23. When the whisker-removing block 31 moves upward relative to the blade 22 under an external force, the pushing pieces 311 are inserted into the gaps 23 to discharge the hair blocked in the gaps 23. The number of the pushing pieces 311 is the same as the number of the blades 22 in the blade assembly 2, and the arrangement positions correspond to the gaps 23 of the blades 22 one by one. The design of the pushing pieces 311 matches the positions and sizes of the gaps 23 of the blades 22, ensuring that the pushing pieces 311 can be accurately inserted into the corresponding gaps 23 under an external force, which can not only effectively remove the hair blocked in the gaps 23, but also will not affect the operation of other components due to deviation or dislocation, greatly improving the whisker-removing efficiency and significantly reducing the decrease in shaving efficiency caused by hair blockage.

[0039] Optionally, as shown in combination with Figure 1 、 Figure 3 、 Figure 5 the whisker-removing assembly 3 further includes a button 32 slidably connected to the knife holder assembly 1. The button 32 is provided with a first guiding slope 321, and the whisker-removing block 31 is provided with a second guiding slope 312 adapted to cooperate with the first guiding slope 321. When an external force pushes the button 32 forward, the first guiding slope 321 abuts against the second guiding slope 312 and pushes the whisker-removing block 31 upward to discharge the hair blocked in the gap 23; it further includes a third spring 5, a fourth spring 6 and a fifth spring 7. The upper and lower ends of the third spring 5 and the fourth spring 6 are respectively connected to the blade assembly 2 and the whisker-removing block 31, and the front and rear ends of the fifth spring 7 are respectively connected to the knife holder assembly 1 and the button 32.

[0040] Among them, the button 32 is a manually triggered control component, which is convenient for the user to manually activate the whisker-removing function when needed; when an external force pushes the button 32, the button 32 slides forward, and the first guiding slope 321 and the second guiding slope 312 abut against each other. Through the oblique force of the slope contact, the whisker-removing block 31 is pushed upward. At this time, the pushing pieces 311 on the whisker-removing block 31 are inserted into the gaps 23 of the blades 22, quickly and effectively discharging the hair blocked in the gaps 23. The operation is simple and the cleaning process is efficient; the third spring 5 and the fourth spring 6 provide an elastic restoring force to ensure that the whisker-removing block 31 can quickly automatically reset to the initial position after the external force is released, preparing for the next whisker-removing action; the fifth spring 7 ensures that the button 32 can automatically return to its original position after the external force is released, avoiding the button 32 from jamming or affecting the user's operation, and improving the use efficiency and convenience.

[0041] Another embodiment of the present invention provides a hair trimmer, including the telescopic cutter head structure with the whisker-removing function as described above.

[0042] In the hair trimmer of this embodiment, the elastic connection design between the blade assembly 2 and the knife holder assembly 1 enables the blade 22 to float flexibly during shaving, adapt to the unevenness of the skin surface, prevent skin scratches caused by uneven contact, and the buffering effect of the elastic component also effectively reduces the pressure on the skin during shaving, improving the comfort and safety of shaving; the movable design of the whisker discharging component 3 can quickly discharge the hair blocked on the blade assembly 2 under the action of external force, keeping the blade 22 always clean and sharp, ensuring the coherence and efficiency of the shaving process, reducing the cleaning frequency, and improving the convenience of use.

[0043] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will all fall within the protection scope of the present utility model.

Claims

1. A telescopic blade structure with beard removal function, characterized in that: The utility model comprises a knife seat assembly (1), a blade assembly (2) and a hair removal assembly (3); the hair removal assembly (3) is movably connected between the knife seat assembly (1) and the blade assembly (2); the blade assembly (2) and the knife seat assembly (1) are telescopically connected up and down; under the action of an external force, the hair removal assembly (3) moves relative to the blade assembly (2) to remove the hair blocked on the blade assembly (2).

2. The telescopic blade structure with beard removal function according to claim 1, characterized in that: The knife seat assembly (1) comprises a knife seat body (11) and a bottom cover (12); the knife seat body (11) and the bottom cover (12) are interconnected to form an installation bin (13) for movably installing the blade assembly (2) and the beard removal assembly (3); the installation bin (13) has an upper opening for exposing the blade assembly (2); an elastic component is arranged between the knife seat assembly (1) and the blade assembly (2); the blade assembly (2) is telescopically connected to the knife seat assembly (1) in an upward and downward manner under the elastic force of the elastic component.

3. The telescopic blade structure with beard removal function according to claim 2, characterized in that: A soap bar (14) is installed on the circumferential edge of the upper opening. During shaving, the upper surface of the soap bar (14) and the upper surface of the blade assembly (2) always keep in contact with the skin under the elastic force of the elastic assembly.

4. The telescopic blade structure with beard removal function according to claim 2, characterized in that: The elastic component comprises a first spring (41) and a second spring (42) which are arranged at an interval from each other, wherein the upper and lower ends of the first spring (41) are respectively connected to the blade component (2) and the bottom cover (12), and the upper and lower ends of the second spring (42) are respectively connected to the blade component (2) and the bottom cover (12).

5. The telescopic blade structure with beard removal function according to claim 4, characterized in that: The first spring (41) and the second spring (42) are respectively connected to the left and right sides of the blade assembly (2).

6. The telescopic blade structure with beard removal function according to claim 5, characterized in that: The blade assembly (2) is provided with a first connecting column (211) and a second connecting column (212); the bottom cover (12) is provided with a third connecting column (121) and a fourth connecting column (122); the upper and lower ends of the first spring (41) are respectively sleeved on the outside of the first connecting column (211) and the third connecting column (121); the upper and lower ends of the second spring (42) are respectively sleeved on the outside of the second connecting column (212) and the fourth connecting column (122); the first connecting column (211) is located directly above the third connecting column (121); and the second connecting column (212) is located directly above the fourth connecting column (122).

7. The telescopic blade structure with beard removal function according to any one of claims 1 to 6, characterized in that: The blade assembly (2) comprises a blade holder (21) and a plurality of blades (22) mounted on the blade holder (21); the plurality of blades (22) are arranged in parallel and spaced apart from each other; a cutting edge is provided on the front side of each blade (22); and a gap (23) is provided in front of each cutting edge that passes through the gap from top to bottom; the beard removal assembly (3) comprises a beard removal block (31); under the action of an external force, the beard removal block (31) moves upward relative to the blade (22) to remove hair blocked in the gap (23).

8. The telescopic blade structure with beard removal function according to claim 7, characterized in that: The hair removal block (31) is provided with a plurality of push pieces (311) arranged in parallel at intervals, and the push pieces (311) are arranged in one-to-one correspondence with the gaps (23). When the hair removal block (31) moves upward relative to the blade (22) under the action of an external force, the push pieces (311) are inserted into the gaps (23) to remove the hair blocked in the gaps (23).

9. The telescopic blade structure with beard removal function according to claim 7, characterized in that: The beard removal assembly (3) further comprises a button (32) slidably connected to the blade holder assembly (1), the button (32) being provided with a first guide slope (321), the beard removal block (31) being provided with a second guide slope (312) suitable for cooperating with the first guide slope (321), when an external force pushes the button (32) forward, the first guide slope (321) abuts against the second guide slope (312) and pushes the beard removal block (31) upward to remove the hair blocked in the gap (23); and further comprises a third spring (5), a fourth spring (6) and a fifth spring (7), the upper and lower ends of the third spring (5) and the fourth spring (6) being respectively connected to the blade holder assembly (2) and the beard removal block (31), and the front and rear ends of the fifth spring (7) being respectively connected to the blade holder assembly (1) and the button (32).

10. A hair trimmer, characterized in that: It comprises a telescopic blade head structure with a beard removal function as described in any one of claims 1 to 9.