Tool bit structure with oil storage tank and hair trimmer

By incorporating an oil reservoir into the blade structure of the hair trimmer, the contact area between the moving and stationary blades is automatically lubricated and cooled, thus solving the heat problem of the moving blades and improving efficiency and user experience.

CN223849317UActive Publication Date: 2026-01-30NINGBO UNIBONO APPLIANCE CO LTD
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Patent Information

Application Number
CN202520530719.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-01-30
Estimated Expiration
2035-03-25

AI Technical Summary

Technical Problem

Existing hair trimmers' blades tend to generate heat during reciprocating motion, requiring frequent manual addition of lubricating oil or grease, resulting in time-consuming and laborious operation and a poor user experience.

Method used

An oil reservoir is installed in the blade structure of the hair trimmer. The oil reservoir stores lubricant, which automatically lubricates and cools the contact area between the moving blade and the stationary blade through the oil outlet, eliminating the need for manual addition.

Benefits of technology

It enables smooth blade movement, eliminating the need for frequent manual lubrication and improving efficiency and user experience.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223849317U_ABST
    Figure CN223849317U_ABST
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Abstract

The utility model relates to the technical field of hair trimmers, and discloses a tool bit structure with an oil storage groove and a hair trimmer, the tool bit structure with the oil storage groove comprises a fixed cutter and a movable cutter movably abutted against the fixed cutter, the fixed cutter is provided with an abutting block suitable for abutting against the movable cutter, the contact part of the movable cutter and the abutting block is a contact part, and the movable cutter is provided with an oil storage groove. An oil storage groove is formed between the fixed cutter and the abutting block, lubricant is arranged in the oil storage groove, and an oil outlet communicated with the oil storage groove is formed in the abutting block. The oil storage tank is arranged between the fixed cutter and the abutting block, and a lubricant in the oil storage tank is discharged from the oil outlet to the contact part during use, so that the contact part is lubricated and cooled, the moving cutter is ensured to swing smoothly, the operation of frequently and manually adding the lubricant to the contact part is not needed, time and labor are saved, and the use experience is good.
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Description

TECHNICAL FIELD

[0001] The utility model relates to hair trimmer technical field, specifically, a kind of cutter head structure and hair trimmer with oil reservoir. BACKGROUND

[0002] Some existing hair trimmer products such as electric clipper, its cutter head structure includes fixed knife and the moving knife reciprocating relative to fixed knife, moving knife is abutted on fixed knife by spring, elastic sheet and other elastic members, when using, motor in hair trimmer drives moving knife to swing back and forth, and hair is trimmed by the cooperation of fixed knife and moving knife;But the moving knife of some existing hair trimmer, since contact with fixed knife, heat is easily generated in the process of swinging back and forth, and it is necessary to manually add lubricating oil or grease to the contact part of fixed knife and moving knife frequently when using, to cool and lubricate moving knife, so that moving knife swings smoothly, the operation of manually adding lubricating oil or grease frequently is time-consuming and labor-saving, and trimming efficiency is low, and the use experience is not good. SUMMARY

[0003] To solve at least one aspect of the above problems, the utility model provides a kind of cutter head structure with oil reservoir, it is suitable for being set on hair trimmer, cutter head structure with oil reservoir includes: fixed knife and the moving knife that is abutted on the fixed knife, the fixed knife is provided with the abutment block suitable for being abutted with the moving knife, the part of the moving knife and the abutment block contact is contact part, oil reservoir is arranged between the fixed knife and the abutment block, lubricant is arranged in the oil reservoir, the abutment block is provided with oil outlet that is communicated with the oil reservoir;When using, the lubricant in the oil reservoir is discharged to the contact part by the oil outlet, to lubricate and cool the contact part;The utility model is provided with oil reservoir between fixed knife and abutment block, and lubricant in oil reservoir is discharged to contact part from oil outlet when using, to reach the effect of lubricating and cooling contact part, ensure that moving knife swings smoothly, without the operation of manually adding lubricant to contact part frequently, time-saving and labor-saving, and the use experience is good.

[0004] Optionally, the fixed knife is provided with mounting groove for mounting the abutment block, and the abutment block is embeddedly mounted in the mounting groove.

[0005] Optionally, the mounting groove includes groove bottom wall, and the oil reservoir is opened on the groove bottom wall.

[0006] Optionally, the oil reservoir is strip-shaped, the oil reservoir extends along the swinging direction of the moving knife, and the oil outlet is provided with a plurality of oil outlets along the extension direction of the oil reservoir.

[0007] Optionally, the fixed blade is provided with a fixed blade tooth, the moving blade is provided with a moving blade tooth, the abutting block comprises a first abutting block abutting against the moving blade tooth, the oil storage groove comprises a first oil storage groove arranged between the fixed blade and the first abutting block, and the oil outlet comprises a first oil outlet communicating with the first oil storage groove.

[0008] Optionally, the first abutting block is provided with a tooth portion corresponding to the fixed blade tooth, and the first abutting block is made of ceramic material.

[0009] Optionally, the moving blade is provided with a moving blade tooth, an end of the moving blade away from the moving blade tooth is provided with a supporting block, the abutting block comprises a second abutting block abutting against the supporting block, the oil storage groove comprises a second oil storage groove arranged between the fixed blade and the second abutting block, and the oil outlet comprises a second oil outlet communicating with the second oil storage groove.

[0010] Optionally, the lubricant is a liquid lubricant or a semi-solid lubricant.

[0011] Optionally, the oil storage groove is provided with an oil absorption and release member.

[0012] Compared with the prior art, the cutter head structure with an oil storage groove in the utility model is provided with an oil storage groove between the fixed blade and the abutting block, the lubricant in the oil storage groove is discharged from the oil outlet to the contact portion during use, so that the contact portion is lubricated and cooled, the moving blade swings smoothly, manual lubricant addition operation on the contact portion is not required frequently, time and labor are saved, and the use experience is good; the fixed blade is provided with a mounting groove for mounting the abutting block, the abutting block is embeddedly mounted in the mounting groove, so that the abutting block does not interfere with the swing of the moving blade, and the normal swing of the moving blade is avoided; the oil outlet is provided with a plurality of oil outlets along the extension direction of the oil storage groove, so that the lubricant in the oil storage groove can be discharged from the plurality of oil outlets, and the lubrication of the moving blade is more uniform; the first abutting block is made of ceramic material, the ceramic material is not easy to heat, the requirement for lubrication is low, and the small blade edge of the tooth portion on the first abutting block is also easy to grind; when the lubricant in the oil storage groove is a liquid lubricant with low viscosity, the oil absorption and release member is arranged in the oil storage groove, so that the lubricant in the oil storage groove is not discharged and consumed too quickly.

[0013] In addition, the utility model also provides a hair trimmer, which comprises the cutter head structure with an oil storage groove, and the hair trimmer also has the beneficial effects of the cutter head structure with an oil storage groove, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a perspective view of the cutter head structure with an oil storage groove of the utility model;

[0015] Figure 2 It is a perspective view of the cutter head structure with an oil storage groove of the utility model; Figure 1 It is an enlarged view of A part in the middle.

[0016] Figure 3 is a sectional view of the cutter head structure with an oil storage groove of the utility model;

[0017] Figure 4 is Figure 3 is an enlarged view of the middle B part;

[0018] Figure 5 is an exploded view of the cutter head structure with an oil storage groove of the utility model;

[0019] The corresponding component names of the various reference numerals in the figure are: 1 is a fixed cutter, 101 is a fixed cutter tooth, 11 is a mounting groove, 111 is a groove bottom wall, 2 is a moving cutter, 201 is a moving cutter tooth, 202 is a support block, 203 is an air clearance groove, 3 is an abutting block, 31 is a first abutting block, 311 is a tooth part, 32 is a second abutting block, 4 is an oil storage groove, 41 is a first oil storage groove, 42 is a second oil storage groove, 5 is an oil outlet, 51 is a first oil outlet, and 52 is a second oil outlet. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model will be described in detail below with reference to the drawings.

[0021] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", etc. is based on the orientation or position relationship when the product is normally used.

[0022] The terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features.

[0023] Reference Figures 1-5The utility model discloses a knife head structure with oil storage groove is suitable for setting on hair trimmer, and the knife head structure with oil storage groove includes: fixed knife 1 and movable knife 2 of abutting on fixed knife 1, fixed knife 1 is metal material, fixed knife 1 is provided with abutting block 3 suitable for abutting with movable knife 2, the part of movable knife 2 and abutting block 3 contact is contact part, because movable knife 2 abuts on abutting block 3 and simultaneously carries out the action of swinging, easily leads to the temperature of contact part, and some existing knife head structures are prevented that the temperature of contact part is too high and causes lubricant to consume too fast, need frequently lubricating and cooling contact part to guarantee the normal swing of movable knife, and the operation is troublesome, fixed knife 1 and abutting block 3 are provided with oil storage groove 4 between, oil storage groove 4 is provided with lubricant, and abutting block 3 is provided with oil outlet 5 that communicates with oil storage groove 4, when using, namely when hair trimmer carries out hair trimming work, this knife head structure will be driven by person and follow to carry out the action such as overturning, swinging, translation, at this time, the lubricant in oil storage groove 4 shakes and is discharged to contact part through oil outlet 5 to lubricate and cool contact part to guarantee that movable knife swings smoothly, the utility model is provided with oil storage groove between fixed knife and abutting block, and the lubricant in oil storage groove is discharged to contact part from oil outlet when using, thereby reach the effect of lubricating and cooling contact part, guarantee that movable knife swings smoothly, need not frequently manually adding lubricant operation to contact part, save time and effort, and the use experience is good.

[0024] Referring to Figure 1 , Figure 3 and Figure 5 , fixed knife 1 is provided with installation groove 11 for installing abutting block 3, and abutting block 3 is embeddedly installed in installation groove 11, and abutting block 3 is flush or close to flush with the upper surface of fixed knife 1, and abutting block 3 is embeddedly installed, so that abutting block 3 does not interfere with the swing of movable knife, avoiding affecting the normal swing of movable knife; installation groove 11 includes groove bottom wall 111, and oil storage groove 4 is formed on groove bottom wall 111, so that the lubricant in oil storage groove 4 can flow into installation groove 11 and then be discharged to contact part along oil outlet 5; abutting block 3 can be fixed in installation groove 11 by glue; oil storage groove 4 is strip-shaped, and extends along the swing direction or approximate swing direction of movable knife 2, so that the lubricant discharged in oil storage groove 4 is located at or close to the position of contact part, so that contact part can contact the lubricant discharged in oil storage groove 4 when movable knife swings, to lubricate and cool contact part; oil outlet 5 is provided with a plurality of oil outlets along the extension direction of oil storage groove 4, and the extension direction includes a direction parallel to the extension direction of oil storage groove 4 and a direction close to parallel to the extension direction of oil storage groove 4, so that the lubricant in oil storage groove 4 can be discharged from multiple oil outlets 5, making the lubrication of movable knife more uniform; oil outlet 5 is a round through hole, and an external oil filler nozzle can be aligned with oil outlet 5 to add lubricant to oil storage groove 4, which is convenient to add.

[0025] Referring to Figures 1-4The fixed cutter 1 is provided with fixed cutter teeth 101, the moving cutter 2 is provided with moving cutter teeth 201, the abutting block 3 includes a first abutting block 31 abutting against the moving cutter teeth 201, the oil storage groove 4 includes a first oil storage groove 41 arranged between the fixed cutter 1 and the first abutting block 31, the oil outlet 5 includes a first oil outlet 51 communicating with the first oil storage groove 41, and the contact part includes a first contact part where the moving cutter teeth 201 contact the first abutting block 31; in use, the lubricant in the first oil storage groove 41 is discharged from the first oil outlet 51 to the first contact part for lubrication and cooling; the first abutting block 31 is provided with a tooth part 311 corresponding to the fixed cutter teeth 101, the hair is trimmed through cooperation of the tooth part 311 and the moving cutter teeth 201, the first abutting block 31 is made of ceramic material, the ceramic material is not easy to heat, and the requirement for lubrication is low, the tooth part 311 on the first abutting block 31 is also easy to grind, and the main reason why the small edge of the ceramic material is easy to grind lies in its high hardness and wear resistance; the ceramic material generally has high hardness, which enables it to effectively remove small protrusions and wear marks on the surface of the metal, thereby restoring the sharpness of the cutter; in addition, the chemical properties of the ceramic are stable, and it is not easy to react with most chemicals, so it will not cause corrosion or damage to the cutter during the grinding process.

[0026] Referring to Figure 1 and Figure 2 , the moving cutter 2 is provided with moving cutter teeth 201, the end of the moving cutter 2 away from the moving cutter teeth 201 is provided with a support block 202, the support block 202 is symmetrically provided with two, and the support block 202 supports and stabilizes the moving cutter 2 to make the moving cutter 2 swing stably; the support block 202 and the moving cutter teeth 201 form an avoidance groove 203 therebetween, the avoidance groove 203 reduces the contact heating area of the moving cutter 2 and the fixed cutter to avoid large-area heating; the abutting block 3 includes a second abutting block 32 abutting against the support block 202, the oil storage groove 4 includes a second oil storage groove 42 arranged between the fixed cutter 1 and the second abutting block 32, the oil outlet 5 includes a second oil outlet 52 communicating with the second oil storage groove 42, and the contact part includes a second contact part where the support block 202 contacts the second abutting block 32; in use, the lubricant in the second oil storage groove 42 is discharged from the second oil outlet 52 to the second contact part for lubrication and cooling; the lubricant is a liquid lubricant or a semi-solid lubricant, the liquid lubricant can also be various lubricating oils, and the semi-solid lubricant can be a semi-solid lubricant that becomes liquid when heated.

[0027] Referring to Figure 1 , Figure 3 and Figure 4 , when the lubricant in the oil storage groove 4 is a liquid lubricant with low viscosity, an oil absorption and slow release member is arranged in the oil storage groove 4, the oil absorption and slow release member is sponge, cotton, oil absorption cloth or other materials with certain oil absorption and slow release of lubricating oil, so that the lubricant in the oil storage groove 4 will not be discharged too quickly and exhausted; when the lubricant in the oil storage groove is a liquid lubricant with high viscosity, the oil absorption and slow release member is not required.

[0028] The cutter head structure with an oil storage groove in the utility model, the fixed cutter and the abutting block are provided with the oil storage groove, the lubricant in the oil storage groove is discharged from the oil outlet to the contact part during use, so that the effect of lubricating and cooling the contact part is achieved, the swinging of the moving cutter is smooth, and the operation of manually adding lubricant to the contact part frequently is not needed, time and effort are saved, and the use experience is good; The fixed cutter is provided with a mounting groove for mounting the abutting block, the abutting block is embeddedly mounted in the mounting groove, so that the abutting block does not interfere with the swinging of the moving cutter, and the normal swinging of the moving cutter is avoided; The oil outlet is provided with a plurality of oil outlets along the extension direction of the oil storage groove, so that the lubricant in the oil storage groove can be discharged from the plurality of oil outlets, and the lubrication of the moving cutter is more uniform; The first abutting block is made of ceramic material, the ceramic material is not easy to heat, the requirement for lubrication is low, and the small tooth part on the first abutting block is also easy to grind; When the lubricant used in the oil storage groove is a liquid lubricant with low viscosity, the oil storage groove is provided with an oil absorption and slow-release part, so that the lubricant in the oil storage groove will not be discharged and consumed too quickly.

[0029] In addition, the utility model also provides a hair trimmer, including above-mentioned cutter head structure with oil storage groove, this hair trimmer also has the beneficial effect of above-mentioned cutter head structure with oil storage groove, and this will not repeat here.

[0030] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled persons in the technical field, several improvements and refinements can be made without departing from the technical principles of the utility model, and these improvements and refinements should also be regarded as the protection range of the utility model.

Claims

1. A blade head structure with an oil reservoir adapted to be provided on a hair trimmer, the blade head structure with an oil reservoir comprising: The fixed knife (1) and the movable knife (2) abutting against the fixed knife (1), characterized in that the fixed knife (1) is provided with an abutting block (3) adapted to abut against the movable knife (2), the part of the movable knife (2) in contact with the abutting block (3) is a contact part, an oil storage groove (4) is arranged between the fixed knife (1) and the abutting block (3), a lubricant is arranged in the oil storage groove (4), and the abutting block (3) is provided with an oil outlet (5) in communication with the oil storage groove (4); in use, the lubricant in the oil storage groove (4) is discharged to the contact part through the oil outlet (5) to lubricate and cool the contact part.

2. The blade head structure with oil reservoir according to claim 1, wherein The fixed knife (1) is provided with a mounting groove (11) for mounting the abutting block (3), and the abutting block (3) is embeddedly mounted in the mounting groove (11).

3. The insert structure with a reservoir according to claim 2, wherein The mounting groove (11) comprises a groove bottom wall (111), and the oil storage groove (4) is formed on the groove bottom wall (111).

4. The blade head structure with oil reservoir according to claim 1, wherein The oil storage groove (4) is in a strip shape, extends along the swinging direction of the movable knife (2), and the oil outlet (5) is provided with a plurality of oil outlets arranged along the extension direction of the oil storage groove (4).

5. The blade head structure with oil reservoir according to claim 1, wherein The fixed knife (1) is provided with a fixed knife tooth (101), the movable knife (2) is provided with a movable knife tooth (201), the abutting block (3) comprises a first abutting block (31) abutting against the movable knife tooth (201), the oil storage groove (4) comprises a first oil storage groove (41) arranged between the fixed knife (1) and the first abutting block (31), and the oil outlet (5) comprises a first oil outlet (51) in communication with the first oil storage groove (41).

6. The blade head structure with oil reservoir according to claim 5, wherein The first abutting block (31) is provided with a tooth part (311) corresponding to the fixed knife tooth (101), and the first abutting block (31) is made of ceramic material.

7. The blade head structure with oil reservoir according to claim 1, wherein The movable knife (2) is provided with a movable knife tooth (201), and one end of the movable knife (2) away from the movable knife tooth (201) is provided with a supporting block (202); the abutting block (3) comprises a second abutting block (32) abutting against the supporting block (202); the oil storage groove (4) comprises a second oil storage groove (42) arranged between the fixed knife (1) and the second abutting block (32); and the oil outlet (5) comprises a second oil outlet (52) in communication with the second oil storage groove (42).

8. The blade head structure with oil reservoir according to claim 1, wherein The lubricant is a liquid lubricant or a semi-solid lubricant.

9. The blade head structure with oil reservoir according to any one of claims 1-8, wherein, The oil storage groove (4) is provided with an oil absorption and release member.

10. A hair trimmer characterized by A knife head structure with an oil storage groove as claimed in any one of claims 1-9.