Electric skin preparation and hair shaving mechanism convenient to disassemble and assemble

By designing an electric hair-shaver mechanism that is easy to assemble and disassemble, and utilizing guide limit screws and elastic limit components, the problem of difficult disassembly of the electric hair-shaver mechanism has been solved, achieving efficient disassembly and safe operation, and reducing the risk of cross-infection.

CN223657064UActive Publication Date: 2025-12-12CHANGDE FIRST PEOPLES HOSPITAL
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Patent Information

Application Number
CN202423099437.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2025-12-12
Estimated Expiration
2034-12-16

AI Technical Summary

Technical Problem

The disassembly of blades in existing electric hair-shaving mechanisms is quite troublesome, increasing the risk of cross-infection and operational difficulty.

Method used

An electric hair removal mechanism was designed, comprising a gripping body, a shaving plate, a cutting blade, and an elastic limiting component. Through the cooperation of the guide limiting screw and the elastic limiting component, the cutting blade can be stably installed and easily disassembled, avoiding the use of additional tools.

Benefits of technology

It improves ease of operation, reduces operational difficulty and time costs, minimizes the risk of cross-infection from instruments, and protects the scalp from damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an electric skin preparation and hair removal mechanism convenient to disassemble and assemble, which comprises a holding body, a hair removal device and a hair removal device, one end of the skin preparation toothed plate is inserted into the insertion cavity, the other end of the skin preparation toothed plate is provided with hair passing teeth protruding out of the holding body, the hair passing teeth are arranged at intervals so that hair can penetrate through tooth gaps of the adjacent hair passing teeth, and a mounting gap is formed between the skin preparation toothed plate and the holding body; the cutting tooth cutter is movably mounted on the skin preparation tooth plate, is partially embedded into the mounting gap, and is provided with tooth blades attached to the hair passing teeth, and the tooth blades are arranged at intervals and are used for cutting hair penetrating through the tooth gap; and the elastic limiting piece is elastically and movably mounted on the holding body, is used for limiting the skin preparation toothed plate, and can move until the limiting of the skin preparation toothed plate is relieved. The skin preparation tooth plate and the cutting tooth cutter are convenient to replace, operation convenience is improved, extra tools are not needed, and operation difficulty and time cost are reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field, in particular, relate to a kind of electric skin preparation hair-removing mechanism of easy disassembly. BACKGROUND

[0002] Head surgery before skin preparation, that is, the process of cleaning and hair removal on the patient's head before surgery, this step is crucial for the success of the operation and the safety of the patient, skin preparation can remove dirt, oil and dead skin cells on the scalp, these substances may contain bacteria, increase the risk of postoperative infection; Hair removal can reduce the place where bacteria hide, reduce the possibility of postoperative infection; After removing hair, doctors can see the surgical area more clearly, which is crucial for precise surgical procedures; After skin preparation, the surgical area can be disinfected more effectively, as disinfectant can cover the skin surface more evenly; During the operation, hair may interfere with the operation of surgical instruments, skin preparation and hair removal can eliminate this interference; Patients may need to be in bed for a long time after surgery, and the scalp without hair is easier to clean and care.

[0003] In order to prevent cross-infection of instruments, the cutting tool for hair removal needs to be disassembled and replaced, and the conventional electric hair-removing mechanism is more troublesome to disassemble the cutting tool, which is not easy to operate and needs to be disassembled with the aid of tools, increasing the operation difficulty of disassembly and replacement. SUMMARY

[0004] The utility model aims at at least one of the technical problems existing in the prior art. To this end, the utility model provides an electric skin preparation hair-removing mechanism of easy disassembly.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] An electric skin preparation hair-removing mechanism of easy disassembly, comprising: a holding body, a front end of which is provided with an insertion cavity with one end open; a skin preparation tooth plate, one end of which is inserted into the insertion cavity, and the other end of which is provided with a hair passing tooth protruding from the holding body, the hair passing tooth is arranged at intervals to allow hair to pass through the gap between adjacent hair passing teeth, and the skin preparation tooth plate has an installation gap with the holding body; a cutting tooth cutter, which is movably installed on the skin preparation tooth plate and partially embedded in the installation gap, is provided with a tooth edge in contact with the hair passing tooth, the tooth edge is arranged at intervals, and the tooth edge is used for cutting the hair passing through the gap; and an elastic limiting piece, which is elastically movably installed on the holding body, is used for limiting the skin preparation tooth plate and can be moved to release the limitation of the skin preparation tooth plate.

[0007] Further, a threaded hole is provided on the skin preparation tooth plate, a guide limiting screw is threadedly connected to the threaded hole, the cutting tooth cutter is provided with a strip-shaped hole through which the guide limiting screw passes, and the length direction of the strip-shaped hole is the same as the moving direction of the cutting tooth cutter.

[0008] Further, the guide limiting screw comprises a threaded segment, a straight column segment and a screw head, the threaded segment, the straight column segment and the screw head are coaxial and the diameters are gradually increased, the threaded segment is threadedly connected with the threaded hole, the diameter of the straight column segment is matched with the width of the strip-shaped hole, and the cutting tooth cutter is attached to the screw head.

[0009] Further, the guide limiting screw and the strip-shaped hole are arranged in plurality.

[0010] Further, one end of the skin preparation tooth plate inserted into the insertion cavity is provided with a limiting block extending out of the insertion cavity, the limiting block is provided with a limiting hole, the elastic limiting piece is an elastic limiting column movably installed on the outer wall of the holding body, and the limiting column is inserted into the limiting hole to limit the skin preparation tooth plate.

[0011] Further, the outer wall of the holding body is provided with a mounting strip, the mounting strip is provided with a mounting hole, the limiting column is movably arranged in the mounting hole, the limiting column is provided with a convex ring, a compression spring is sleeved on the limiting column, and the compression spring is located between the mounting strip and the convex ring.

[0012] Further, the mounting hole, the limiting column and the compression spring are provided with multiple groups.

[0013] Further, the upper end of the limiting column passes through the mounting hole and is connected through a horizontal rod.

[0014] Further, the side wall of the insertion cavity away from the passing tooth is provided with an outlet for the limiting block to pass through.

[0015] Further, the edge of the limiting column inserted into the limiting hole is provided with a chamfer.

[0016] The utility model has the following beneficial effects:

[0017] The activity of the cutting tooth cutter enables the tooth blade to cut the hair passing through the tooth gap, realizes hair cutting, the skin preparation tooth plate can effectively prevent the scalp tissue from being directly contacted with the tooth blade and being cut, causes the scalp loss, the skin preparation tooth plate protects the scalp, and the tooth blade only shaves the hair.

[0018] In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. The utility model will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings constituting a part of this application serve to provide further understanding of the present application, the schematic embodiments of the present application and the description thereof serve to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0020] Figure 1 is a whole structure schematic view of the embodiment of the present application;

[0021] Figure 2 is an enlarged view of A of Figure 1

[0022] Figure 3 is an exploded state structure schematic view of Figure 1

[0023] Figure 4 is an enlarged view of B of Figure 3

[0024] Figure 5 is a partial structure schematic view of the holding body;

[0025] Figure 6 is a cutting tooth cutter sectional view.

[0026] Legend:

[0027] holding body 100, plug-in cavity 110, outlet 111, mounting strip 120, mounting hole 121;

[0028] skin tooth plate 200, over-releasing tooth 210, tooth gap 211, mounting gap 220, threaded hole 230, guide limiting screw 240, threaded section 241, straight column section 242, screw head 243, limiting block 250, limiting hole 251, avoiding slot 260;

[0029] cutting tooth cutter 300, tooth edge 310, strip-shaped hole 320, embedding slot 330;

[0030] elastic limiting piece 400, convex ring 410, compression spring 420, cross bar 430. DETAILED DESCRIPTION

[0031] It should be understood that the specific embodiments described herein are merely intended to explain the present application, and are not used to limit the present application.

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. ​​​

[0033] It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications will also change accordingly.

[0034] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0035] Please refer to Figure 1 and Figure 2 , the present application provides a preferred embodiment of a convenient disassembly of the electric skin preparation hair removal mechanism, including holding body 100, skin preparation tooth plate 200, cutting tooth cutter 300 and elastic limiting piece 400.

[0036] The front end of the holding body 100 is provided with an open-ended plug-in cavity 110, and the holding body 100 can be held by hand; the skin preparation tooth plate 200 is inserted into the plug-in cavity 110, and the other end of the skin preparation tooth plate 200 is provided with the over hair tooth 210 protruding from the holding body 100, referring to Figure 4 , the over hair tooth 210 is arranged at intervals to allow the hair to pass through the tooth gap 211 between adjacent over hair teeth 210, and the skin preparation tooth plate 200 and the holding body 100 have an installation gap 220. The plug-in cavity 110 is formed on the boss protruding from the end surface of the holding body 100, and the other area of the end surface of the holding body 100 without boss is formed with the installation gap 220 and the skin preparation tooth plate 200.

[0037] The cutting tooth cutter 300 is movably installed on the skin preparation tooth plate 200 and partially embedded in the installation gap 220, that is, the cutting tooth cutter 300 is located between the skin preparation tooth plate 200 and the holding body 100. The cutting tooth cutter 300 is provided with a tooth edge 310 abutting the over hair tooth 210, and the tooth edge 310 is arranged at intervals, and the tooth edge 310 is used for cutting the hair passing through the tooth gap 211. Referring to Figure 3 , the cutting tooth cutter 300 can move left and right, and the left and right directions are the width directions of the cutting tooth cutter 300 and the skin preparation tooth plate 200.

[0038] The elastic limiting piece 400 is elastically movably installed on the holding body 100, and is used for limiting the skin preparation tooth plate 200.

[0039] The skin preparation tooth plate 200 can effectively prevent the scalp tissue from being directly contacted with the tooth edge 310 and being cut, causing the scalp loss, and the skin preparation tooth plate 200 protects the scalp, so that the tooth edge 310 only shaves the hair; through the elastic limiting piece 400, the skin preparation tooth plate 200 can be flexibly limited and released, the design facilitates replacement of the skin preparation tooth plate 200 and the cutting tooth cutter 300, improves the operation convenience, does not need to rely on additional tools, and reduces the operation difficulty and time cost. The skin preparation tooth plate 200 and the cutting tooth cutter 300 need to be disassembled after use, so as to avoid cross infection of other patients caused by repeated use, and the skin preparation tooth plate 200 and the cutting tooth cutter 300 can be used once or used again after being disinfected and cleaned.

[0040] With reference to Figure 3 In some embodiments of the utility model, the skin preparation tooth plate 200 is provided with a threaded hole 230, the threaded hole 230 is threadedly connected with a guide limiting screw 240, the cutting tooth cutter 300 is provided with a strip-shaped hole 320 through which the guide limiting screw 240 passes, the length direction of the strip-shaped hole 320 is the same as the movement direction of the cutting tooth cutter 300, the guide limiting screw 240 and the strip-shaped hole 320 are matched to realize the movement guide and limiting of the cutting tooth cutter 300, so that the cutting tooth cutter 300 moves stably.

[0041] With reference to Figure 6 In further embodiments of the utility model, the guide limiting screw 240 comprises a threaded section 241, a straight column section 242 and a screw head 243, the threaded section 241, the straight column section 242 and the screw head 243 are coaxial and the diameters gradually increase, the threaded section 241 is threadedly connected with the threaded hole 230, the diameter of the straight column section 242 is matched with the width of the strip-shaped hole 320, so as to play a role of stable guide, the cutting tooth cutter 300 is attached to the screw head 243, the diameter of the screw head 243 is greater than the width of the strip-shaped hole 320, so as to limit the cutting tooth cutter 300, the straight column section 242 is matched with the strip-shaped hole 320, so that the cutting tooth cutter 300 does not separate from the skin preparation tooth plate 200, and the cutting tooth cutter 300 is attached to the screw head 243, so that the cutting tooth cutter 300 is limited in the thickness direction and does not obviously jump in the up-down direction, so that the cutting of the hair is more effective.

[0042] As Figure 5As shown, it can be understood that the holding body 100 can be provided with a driving motor, the driving motor drives the output shaft 130 to reciprocate left and right, the output shaft 130 is inserted into the embedded groove 330 of the cutting tooth cutter 300, so that the output shaft 130 drives the cutting tooth cutter 300 to reciprocate left and right, so as to cut the hair. In order to avoid structural interference during installation, the spare skin tooth plate 200 is provided with a avoiding slot 260 for the output shaft 130 to pass through, the driving motor can be a telescopic motor to directly drive the output shaft 130 to reciprocate, of course the driving motor can also drive the output shaft 130 to reciprocate through a transmission mechanism. The holding body 100 can be built-in battery or through the wire harness and plug to plug into the socket to obtain the electric energy, so as to power the driving motor.

[0043] Referring to Figure 3 In further embodiments of the utility model, the guide limiting screw 240 and the strip-shaped hole 320 are arranged in multiple, so as to realize multiple position limiting guide, improve the stability of the movement of the cutting tooth cutter 300.

[0044] Referring to Figure 2 And Figure 3 In further embodiments of the utility model, one end of the spare skin tooth plate 200 inserted into the plug-in cavity 110 is provided with a limiting block 250 extending out of the plug-in cavity 110, the limiting block 250 is provided with a limiting hole 251, the elastic limiting part 400 is an elastic movable limiting column installed on the outer wall of the holding body 100, the limiting column is inserted into the limiting hole 251 to realize the limiting of the spare skin tooth plate 200, when it is needed to disassemble the spare skin tooth plate 200, the limiting column can be operated to disengage from the limiting hole 251 to realize the release of the limiting of the spare skin tooth plate 200.

[0045] Referring to Figure 2 And Figure 3 In further embodiments of the utility model, the outer wall of the holding body 100 is provided with a mounting strip 120, the mounting strip 120 is provided with a mounting hole 121, the limiting column is movably arranged in the mounting hole 121, the limiting column is provided with a convex ring 410, the limiting column below the convex ring 410 can be inserted into the limiting hole 251, the profile of the convex ring 410 is larger than the limiting hole 251, so as to realize the limiting of the depth of the limiting column inserted into the limiting hole 251, the limiting column is provided with a compression spring 420, the compression spring 420 is located between the mounting strip 120 and the convex ring 410, the compression spring 420 drives the limiting column to keep the state of being inserted into the limiting hole 251, so as to realize stable limiting, when it is needed to disassemble, the limiting column can be lifted up, so that the limiting column resists the elastic force of the compression spring 420 and disengages from the limiting hole 251, so as to be separated from the disassembly of the spare skin tooth plate 200.

[0046] Referring to Figure 2 And Figure 3In further embodiments of the present application, the mounting holes 121, the limiting posts and the compression springs 420 are provided with multiple groups, thereby achieving multi-position limiting and avoiding the force being concentrated on one limiting post.

[0047] Referring to Figure 2 and Figure 3 In further embodiments of the present application, the upper ends of the limiting posts pass through the mounting holes 121 and are connected in series by a cross bar 430. Specifically, the upper ends of the limiting posts are provided with hole positions for the cross bar 430 to pass through and install, and all the limiting posts are connected by the cross bar 430, so that when disassembled, the cross bar 430 can be directly lifted to achieve the separation of all the limiting posts from the limiting holes 251, thereby facilitating the disassembly.

[0048] Referring to Figure 2 and Figure 3 In further embodiments of the present application, the side wall of the insertion cavity 110 away from the overhanging tooth 210 is provided with an outlet 111 for the limiting block 250 to pass through, so that the limiting block 250 passes out of the insertion cavity 110 from the outlet 111, thereby avoiding structural interference.

[0049] In specific embodiments of the present application, the edge of the limiting post inserted into the limiting hole 251 is provided with a chamfer, so that it is easier to insert at the initial stage.

[0050] The above is only the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An electrically powered shaving hair-removing mechanism which is easy to disassemble, characterized in that, The utility model relates to a skinning tooth plate and cutting tooth knife, and belongs to the field of skinning tooth plate and cutting tooth knife. The utility model discloses a skinning tooth plate and cutting tooth knife, which comprises a holding body (100) provided with an open-end insertion cavity (110) at the front end; a skinning tooth plate (200) inserted into the insertion cavity (110) at one end and provided with overpassing teeth (210) protruding from the holding body (100) at the other end, the overpassing teeth (210) are arranged at intervals to allow hair to pass through the tooth gaps (211) between adjacent overpassing teeth (210), and the skinning tooth plate (200) has an installation gap (220) with the holding body (100); a cutting tooth knife (300) movably mounted on the skinning tooth plate (200) and partially embedded in the installation gap (220), provided with tooth edges (310) abutting the overpassing teeth (210), the tooth edges (310) are arranged at intervals, and the tooth edges (310) are used for cutting the hair passing through the tooth gaps (211); and an elastic limiting member (400) elastically movably mounted on the holding body (100) and used for limiting the skinning tooth plate (200) and capable of being moved to release the limitation on the skinning tooth plate (200). The skinning tooth plate (200) is provided with a threaded hole (230), a guide limiting screw (240) is threadedly connected to the threaded hole (230), the cutting tooth knife (300) is provided with a strip-shaped hole (320) through which the guide limiting screw (240) passes, and the length direction of the strip-shaped hole (320) is the same as the moving direction of the cutting tooth knife (300). The guide limiting screw (240) comprises a threaded section (241), a straight column section (242) and a screw head (243), the threaded section (241), the straight column section (242) and the screw head (243) are coaxial and the diameters gradually increase, the threaded section (241) is threadedly connected to the threaded hole (230), the diameter of the straight column section (242) is matched with the width of the strip-shaped hole (320), and the cutting tooth knife (300) abuts the screw head (243). The guide limiting screw (240) and the strip-shaped hole (320) are arranged in multiple groups.

2. The electrically powered shaving hair removal mechanism of claim 1, wherein, The end of the skinning tooth plate (200) inserted into the insertion cavity (110) is provided with a limiting block (250) extending out of the insertion cavity (110), the limiting block (250) is provided with a limiting hole (251), the elastic limiting member (400) is a limiting column elastically movably mounted on the outer wall of the holding body (100), and the limiting column is inserted into the limiting hole (251) to limit the skinning tooth plate (200).

3. The electrically powered shaving hair removal mechanism of claim 2, wherein, The outer wall of the holding body (100) is provided with a mounting strip (120), the mounting strip (120) is provided with a mounting hole (121), the limiting column is movably arranged in the mounting hole (121), the limiting column is provided with a protruding ring (410), a compression spring (420) is sleeved on the limiting column, and the compression spring (420) is located between the mounting strip (120) and the protruding ring (410).

4. The electrically powered shaving apparatus of claim 2 wherein, The mounting hole (121), the limiting column and the compression spring (420) are arranged in multiple groups.

5. The electrically powered shaving apparatus of claim 1, wherein: The upper end of the limiting column passes through the mounting hole (121) and is connected by a cross rod (430).

6. The electrically powered shaving hair removal mechanism of claim 5, wherein, The side wall of the insertion cavity (110) away from the overpassing teeth (210) is provided with an outlet (111) through which the limiting block (250) passes.

7. The electrically powered shaving apparatus of claim 6 wherein, ​ 8. The electrically powered shaving apparatus of claim 7 wherein, ​ 9. The electrically powered shaving apparatus of claim 6 wherein, ​ 10. The electrically powered shaving hair removal mechanism of claim 5, wherein, The end edge of the limiting column inserted into the limiting hole (251) is provided with a chamfer. The end edge of the limiting column inserted into the limiting hole (251) is provided with a chamfer.