Magnetic suction tool bit cover and electric shaver

Abstract

The utility model relates to a magnetic suction cutter head cover and an electric shaver, the magnetic suction cutter head cover comprises a magnet device, a protective cover and an inner end cover, the protective cover is of a cover body structure with an opening at one end, and a first sealing surface is arranged in the protective cover; the inner end cover is provided with a second sealing surface, the first sealing surface and the second sealing surface are in sealing contact and form a containing cavity, and the magnetic attraction device is arranged in the containing cavity and sealed on the first sealing surface and the second sealing surface. According to the magnetic suction cutter head cover, the protective cover and the inner end cover are fixed together in an ultrahigh strength mode through ultrasonic welding, the fixing reliability can be guaranteed without being affected by the environment, and meanwhile the waterproof and dustproof effects on a magnetic suction device are achieved under the condition that no space is occupied.

Description

Technical Field

[0001] This utility model relates to the field of shaving products technology, and in particular to a magnetic shaver head cover and an electric shaver. Background Technology

[0002] Electric shavers are everyday items primarily used by men to groom their beards. Compared to manual shavers, which require shaving cream and can easily cause cuts, they offer advantages such as convenience, speed, and safety, and are increasingly being used in men's daily lives.

[0003] Electric shavers generally consist of a shaver body and a protective cap. When not in use, the cap covers the shaver body to protect the shaver head; when needed, it is simply removed. Currently, most protective caps on the market are magnetically attached to the shaver body. A fixing element within the cap holds the magnet in place, typically using double-sided tape or glue, or a snap-fit ​​connection. However, double-sided tape or glue is unreliable and easily affected by environmental factors, causing the adhesive strength to decrease and leading to the fixing element and magnet detaching. Snap-fit ​​connections, on the other hand, are space-consuming, resulting in a larger overall size and lacking waterproof and dustproof functionality. Utility Model Content

[0004] Based on this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a magnetic shaver head cover and an electric shaver. According to the embodiments of this utility model, the magnetic shaver head cover and the electric shaver use ultrasonic welding to fix the protective cover and the inner end cover together with ultra-high strength, which can ensure the reliability of the fixation without being affected by the environment. At the same time, it can achieve the effect of waterproofing and dustproofing the magnetic device without taking up space.

[0005] To achieve the above objectives, a first aspect of this utility model provides a magnetic suction knife head cover, comprising:

[0006] Magnetic suction device;

[0007] A protective cover, wherein the protective cover is a cover structure with one end open, and the interior of the protective cover is provided with a first sealing surface;

[0008] The inner end cap has a second sealing surface. The first sealing surface and the second sealing surface are in sealing contact and form a placement cavity. The magnetic suction device is disposed in the placement cavity and is sealed to the first sealing surface and the second sealing surface.

[0009] In one embodiment, the first sealing surface and the second sealing surface are fixed together by ultrasonic welding, and the second sealing surface and the first sealing surface form a periphery of welded ribs, which surround the placement cavity.

[0010] Therefore, according to the embodiment of the present invention, the magnetic suction knife head cover forms a placement cavity for placing the magnetic suction device by sealing the first sealing surface of the protective cover and the second sealing surface of the inner end cover. Ultrasonic welding is then used to weld the second sealing surface to the first sealing surface, forming a circumferential welded rib surrounding the placement cavity. This utilizes the ultra-high strength fixing force of ultrasonic welding to ensure a firm and reliable connection between the inner end cover and the protective cover, unaffected by environmental factors. Furthermore, without occupying the internal space of the protective cover, the circumferential welded rib effectively surrounds the magnetic suction device, providing dust and water protection. In addition, the ultrasonic welding of the protective cover and the inner end cover leaves no visible processing marks, effectively improving the aesthetics of the magnetic suction knife head cover.

[0011] In one embodiment, the placement cavity is formed by a groove, which is disposed on the first sealing surface or the second sealing surface; or, the placement cavity is formed by two grooves, each disposed on the first sealing surface and the second sealing surface.

[0012] In one embodiment, the inner side of the protective cover away from its opening is provided with the first sealing surface; the inner end cover is a cover structure with one end open, the outer side of the inner end cover away from its opening is provided with the second sealing surface, and the inner side of the inner end cover away from its opening is a magnetic surface, which is used to attract each other to the metal mesh cover of the shaver head.

[0013] In one embodiment, the end of the protective cover with an opening is a first abutting end, which is used to abut against the shaver body.

[0014] In one embodiment, the end of the inner end cap with an opening is a second abutting end, which is used to abut against the razor head.

[0015] In one embodiment, the first sealing surface and the second sealing surface are in sealed contact to form two or more placement cavities, the two or more placement cavities are respectively spaced apart, and each placement cavity is provided with the magnetic attraction device.

[0016] In one embodiment, the second sealing surface and the first sealing surface are fused together to form two or more welded ribs, and the two or more welded ribs are arranged to surround the placement cavity in sequence.

[0017] In one embodiment, the protective cover is made of plastic, and the inner end cap is also made of plastic.

[0018] A second aspect of this utility model provides an electric shaver that includes the magnetic shaver head cover described in any of the above embodiments. According to this utility model, the electric shaver utilizes ultrasonic welding to secure the protective cover and the inner end cover together with ultra-high strength, ensuring reliable fixation regardless of environmental influences. Simultaneously, it provides waterproof and dustproof protection for the magnetic shaver without occupying space.

[0019] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a cross-sectional schematic diagram of the magnetic suction knife head cover according to an embodiment of the present utility model;

[0021] Figure 2 This is one of the structural schematic diagrams of the inner end cap of the magnetic suction knife head cover according to an embodiment of the present utility model;

[0022] Figure 3 This is the second schematic diagram of the inner end cap of the magnetic suction knife head cover according to an embodiment of the present utility model;

[0023] Figure 4 This is a cross-sectional schematic diagram of an electric shaver according to an embodiment of the present utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 10. Protective cover; 11. First sealing surface; 12. First abutting end; 20. Inner end cover; 21. Second sealing surface; 22. Placement cavity; 23. Second abutting end; 30. Magnetic suction device; 40. Welding rib; 50. Shaver body; 60. Shaver head. Detailed Implementation

[0026] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention.

[0027] In related technologies, electric shavers generally consist of a shaver body and a protective cover. When not in use, the protective cover covers the shaver body to protect the shaver head; when in use, it is simply removed. Currently, protective covers on the market are generally connected to the shaver body magnetically. A fixing element within the cover holds the magnet in place, and the fixing element is typically bonded to the cover with double-sided tape or glue, or the fixing element is secured to the cover with clips. However, the reliability of double-sided tape or glue is poor, easily affected by environmental factors causing the adhesion to weaken, leading to the fixing element and magnet detaching. Clips, on the other hand, take up a lot of space, resulting in a larger overall size, and cannot achieve waterproof and dustproof functions.

[0028] In view of this, the present invention provides a magnetic shaver head cover and an electric shaver. According to the present invention, the magnetic shaver head cover and the electric shaver use ultrasonic welding to fix the protective cover 10 and the inner end cover 20 together with ultra-high strength, which can ensure the reliability of the fixation without being affected by the environment. At the same time, it can provide waterproof and dustproof effect for the magnetic shaver 30 without taking up space.

[0029] Please see Figures 1 to 4 The first aspect of this utility model provides a magnetic suction knife head cover, comprising:

[0030] Magnetic attraction device 30;

[0031] The protective cover 10 is a cover structure with one end open, and the interior of the protective cover 10 is provided with a first sealing surface 11;

[0032] The inner end cap 20 is provided with a second sealing surface 21. The first sealing surface 11 and the second sealing surface 21 are in sealing contact and form a placement cavity 22. The magnetic suction device 30 is disposed in the placement cavity 22 and is sealed to the first sealing surface 11 and the second sealing surface 21.

[0033] The first sealing surface 11 and the second sealing surface 21 are fixed together by ultrasonic welding, and the second sealing surface 21 and the first sealing surface 11 form a periphery of welding ribs 40, which surround the placement cavity 22.

[0034] In this embodiment of the present invention, a first sealing surface 11 is provided on the inner side of the end of the protective cover 10 away from its opening; the inner end cover 20 is a cover structure with one end open, a second sealing surface 21 is provided on the outer side of the end of the inner end cover 20 away from its opening, and the inner side of the end of the inner end cover 20 away from its opening is a magnetic surface, which is used to attract each other to the metal mesh cover of the shaver head 60; the outer side wall of the inner end cover 20 abuts against the inner side wall of the protective cover 10.

[0035] Furthermore, the protective cover 10 is made of plastic, and the inner end cover 20 is made of plastic. Alternatively, in some other embodiments, the first sealing surface 11 of the protective cover 10 is made of plastic, and the second sealing surface 21 of the inner end cover 20 is made of plastic, so that the second sealing surface 21 and the first sealing surface 11 can be ultrasonically welded to form a weld rib 40.

[0036] Therefore, according to the embodiment of the present invention, the magnetic suction knife head cover forms a placement cavity 22 for placing the magnetic suction device 30 by sealing the first sealing surface 11 of the protective cover 10 and the second sealing surface 21 of the inner end cover 20 in a sealed contact. The second sealing surface 21 and the first sealing surface 11 are welded together by ultrasonic welding to form a periphery-shaped weld rib 40 surrounding the placement cavity 22. In this way, the ultra-high strength fixing force of ultrasonic welding makes the connection between the inner end cover 20 and the protective cover 10 firm and reliable, and is not affected by environmental factors. Moreover, without occupying the internal space of the protective cover 10, the periphery-shaped weld rib 40 surrounds the magnetic suction device 30, which can effectively achieve the effect of dustproof and waterproof. In addition, the protective cover 10 and the inner end cover 20 are ultrasonically welded together, and no processing marks are visible, which effectively improves the aesthetics of the magnetic suction knife head cover.

[0037] Optionally, in some embodiments of this utility model, the placement cavity 22 is formed by a groove, which is disposed on the first sealing surface 11 or the second sealing surface 21. It can be understood that in these embodiments, the placement cavity 22 is recessed from the first sealing surface 11 or the second sealing surface 21. For example, when the placement cavity 22 is recessed from the first sealing surface 11, the second sealing surface 21 is provided with a welding rib 40 for welding; similarly, when the placement cavity 22 is recessed from the second sealing surface 21, the first sealing surface is provided with a welding rib 40 for welding.

[0038] Optionally, in some embodiments of this utility model, the placement cavity 22 is formed by two grooves, each disposed on the first sealing surface 11 and the second sealing surface 21. It can be understood that in these embodiments, the first sealing surface 11 is recessed to form a groove, and the second sealing surface 21 is also correspondingly recessed to form a groove, thus the two grooves together constitute the placement cavity 22 for placing the magnetic suction device 30.

[0039] The magnetic attraction device 30 is shaped to match the placement cavity 22, and its shape can be square, round, oval, or other irregular shapes. Furthermore, the magnetic attraction device 30 is made of magnetic material and can attract magnetic metals or other magnetic objects.

[0040] Optionally, in some embodiments of this utility model, two weld ribs 40 of different circumferential sizes are formed by welding the second sealing surface 21 and the first sealing surface 11 together, and the two weld ribs 40 are arranged to surround the placement cavity 22 in sequence. It can be understood that in some other embodiments, the number of weld ribs 40 formed by ultrasonic welding of the second sealing surface 21 and the first sealing surface 11 can be more than two, and the number of weld ribs 40 can be set according to actual needs. These embodiments should not be construed as limiting this utility model.

[0041] Optionally, in some embodiments of this utility model, two placement cavities 22 are recessed on the second sealing surface 21, the two placement cavities 22 are spaced apart, and each placement cavity 22 is provided with a magnetic attraction device 30. It can be understood that in other embodiments, the number of placement cavities 22 recessed on the second sealing surface 21 can be more than two, and the number of placement cavities 22 and magnetic attraction devices 30 can be set according to actual needs. These embodiments should not be construed as limiting this utility model.

[0042] like Figure 4 As shown, in some embodiments of this utility model, the end of the protective cover 10 with an opening is the first abutting end 12, which abuts against the shaver body 50; the end of the inner end cover 20 with an opening is the second abutting end 23, which abuts against the shaver head 60. That is, when the end of the protective cover 10 with an opening abuts against the shaver body 50, the end of the inner end cover 20 with an opening also abuts against the shaver head 60. Furthermore, the magnetic surface of the inner end cover 20 is attracted to the metal mesh cover of the shaver head 60, thereby fixing the magnetic shaver head cover onto the shaver body 50 and protecting the shaver head 60.

[0043] A second aspect of this utility model provides an electric shaver that includes a magnetic shaver head cover as described in any of the above embodiments. According to this utility model, the electric shaver uses ultrasonic welding to secure the protective cover 10 and the inner end cover 20 together with ultra-high strength, ensuring reliable fixation regardless of environmental influences. Simultaneously, it provides waterproof and dustproof protection for the magnetic shaver 30 without occupying space.

[0044] like Figure 4As shown, the electric shaver of this embodiment further includes a shaver body 50 and a shaver head 60. The shaver head 60 is disposed on the shaver body 50. The end of the protective cover 10 with an opening is a first abutting end 12, which abuts against the shaver body 50. The end of the inner end cover 20 with an opening is a second abutting end 23, which abuts against the shaver head 60. That is, when the end of the protective cover 10 with an opening abuts against the shaver body 50, the end of the inner end cover 20 with an opening also abuts against the shaver head 60. Furthermore, the magnetic surface of the inner end cover 20 is attracted to the metal mesh cover of the shaver head 60, thereby fixing the magnetic shaver head cover on the shaver body 50 and protecting the shaver head 60.

[0045] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this utility model.

[0046] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the magnetic suction knife head cover of the utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A magnetic knife head cover, characterized in that, include: Magnetic suction device; A protective cover, wherein the protective cover is a cover structure with one end open, and the interior of the protective cover is provided with a first sealing surface; The inner end cap has a second sealing surface. The first sealing surface and the second sealing surface are in sealing contact and form a placement cavity. The magnetic suction device is disposed in the placement cavity and is sealed to the first sealing surface and the second sealing surface.

2. The magnetic suction knife head cover according to claim 1, characterized in that: The first sealing surface and the second sealing surface are fixed together by ultrasonic welding, and the second sealing surface and the first sealing surface form a periphery of weld ribs, which surround the placement cavity.

3. The magnetic suction knife head cover according to claim 2, characterized in that: The placement cavity is formed by a single groove, which is disposed on the first sealing surface or the second sealing surface; or, the placement cavity is formed by two grooves, each disposed on the first sealing surface and the second sealing surface.

4. The magnetic suction knife head cover according to claim 1, characterized in that: The protective cover has a first sealing surface on its inner side at the end furthest from its opening; the inner end cover is a cover structure with one open end, and the outer side of the inner end cover furthest from its opening has a second sealing surface; the inner side of the inner end cover furthest from its opening is a magnetic surface, which is used to attract the metal mesh cover of the shaver head.

5. The magnetic suction knife head cover according to claim 4, characterized in that: The end of the protective cover with an opening is the first abutting end, which is used to abut against the shaver body.

6. The magnetic suction knife head cover according to claim 5, characterized in that: The end of the inner end cap with an opening is the second abutment end, which is used to abut against the razor head.

7. The magnetic suction knife head cover according to claim 1, characterized in that: The first sealing surface and the second sealing surface are in sealing contact to form two or more placement cavities, which are respectively spaced apart, and each placement cavity is provided with the magnetic attraction device.

8. The magnetic suction knife head cover according to claim 1, characterized in that: The second sealing surface and the first sealing surface are fused together to form two or more weld ribs, and the two or more weld ribs are arranged to surround the placement cavity in sequence.

9. The magnetic suction knife head cover according to claim 1, characterized in that: The protective cover is made of plastic, and the inner end cap is also made of plastic.

10. An electric shaver, characterized in that: Including the magnetic suction knife head cover as described in any one of claims 1 to 9.

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