Magnetic fixing structure and shaver

Abstract

The application relates to the field of shavers, and provides a magnetic attraction fixing structure and a shaver. The magnetic attraction fixing structure comprises a seat and a holder, the seat comprises a seat body and a cover body, the inner side wall of the seat body is circumferentially provided with a plurality of first installation grooves, the first installation grooves are open towards a center axis of the seat body and are adapted to embed first magnets, the cover body is adapted to be fixedly installed on the top of the seat body, and the outer side wall of the cover body is adapted to abut against and constrain the radial end face of the first magnet close to the center axis of the seat body, and the bottom of the holder is further provided with a plurality of second magnets at positions corresponding to the first magnets. The first magnet of the application is installed in the radially open first installation groove of the seat and axially constrains the first magnet; after the cover body and the seat body are assembled, the outer side wall of the cover body is adapted to abut against and radially constrain the radial end face of the first magnet close to the center axis of the seat body, the first magnet is more stably fixed, the connection failure problem caused by loosening of the first magnet is reduced, and the overall quality and service life of the product are improved.

Description

Technical Field

[0001] This utility model relates to the field of razors, and further to a magnetic fixing structure and a razor. Background Technology

[0002] Current shaver handles and shaving heads are detachably connected using magnetic attraction. The top of the shaving head has an upward-facing mounting slot where a magnet is placed axially, attracting the magnet on the shaving head to the magnet on the shaving body. However, currently, a layer of plastic or glue is heat-pressed onto the magnet on the shaving head for fixation. During this process, uneven plastic or glue layers or insecure fixation may occur, affecting the stability of the connection between the shaving head and shaving head. Therefore, this approach is both aesthetically unappealing and cumbersome in the manufacturing process. Utility Model Content

[0003] To address the aforementioned technical problems, the purpose of this utility model is to provide a magnetic fixing structure and a shaver. A first magnet is installed in a radially open first mounting groove on the shaver holder, forming an axial constraint on the first magnet. After the cover and the base are assembled, the outer wall of the cover is adapted to form a radial abutment constraint with the radial end face of the first magnet near the central axis of the base. The first magnet is more stably fixed, and the magnetic connection between the shaver holder and the shaver base is more reliable, reducing connection failures caused by loosening of the first magnet and improving the overall quality and service life of the product.

[0004] To achieve the above objectives, this utility model provides a magnetic fixing structure, including a tool holder and a tool support. The tool holder includes an axially assembled base and a cover. The inner sidewall of the base has a plurality of first mounting grooves distributed circumferentially. The openings of the first mounting grooves face the central axis of the base and are adapted to embed a first magnet. The cover is adapted to be fixedly installed on the top of the base, and the outer sidewall of the cover is adapted to form an abutment constraint with the radial end face of the first magnet near the central axis of the base.

[0005] The tool holder is adapted to install a tool mesh assembly, and a plurality of second magnets are provided at the bottom of the tool holder at the position corresponding to the first magnet. The first magnet and the second magnets are adapted to attract each other and detachably install the tool holder onto the tool base.

[0006] In some embodiments, the top of the base is provided with an assembly groove, and the first mounting groove is disposed on the groove wall of the assembly groove;

[0007] The cover includes an annular side and a central body. The central body is fitted into the assembly groove. The annular side extends axially along the outer edge of the central body and forms a radial abutment with the groove wall of the assembly groove. At this time, the annular side is adapted to abut and limit the radial end face of the first magnet.

[0008] In some embodiments, the seat includes an assembly body and a receiving body. The assembly body has the assembly groove, and the receiving body is adapted to place a transmission component. The assembly body has a plurality of arc-shaped recesses spaced apart circumferentially, and the first mounting groove is radially formed on the inner sidewall of the arc-shaped recesses. The outer contour of the central body of the cover matches the inner sidewall of the assembly body.

[0009] In some embodiments, the receiving body is provided with a support groove, the support groove is connected to the bottom wall of the first mounting groove, and a plurality of protruding support plates are distributed at intervals in the support groove, the tops of the support plates together forming a bottom support plane for placing the first magnet.

[0010] In some embodiments, the wall thickness of the receiving body gradually decreases from top to bottom along the axial direction, the support plate is triangular, the right-angle vertex of the support plate is located at the opening of the first mounting groove, and the right-angle vertex is provided with an arc transition portion, and the hypotenuse of the support plate matches the side wall of the receiving body.

[0011] In some embodiments, the inner sidewall of the seat is provided with circumferentially spaced snap-fit ​​grooves, and the outer sidewall of the cover is provided with a plurality of elastic snap-fit ​​blocks adapted to the snap-fit ​​grooves. The elastic snap-fit ​​blocks are distributed at equal angles along the circumference and their outer sidewalls are provided with guide slopes. The cover is snapped and fixed in the assembly groove of the seat by the radial snap-fit ​​engagement of the elastic snap-fit ​​blocks and the snap-fit ​​grooves.

[0012] In some embodiments, the inner sidewall of the seat is further provided with a plurality of placement blocks, which are adapted to abut against the bottom of the cover.

[0013] In some embodiments, the tool holder is provided with a plurality of second mounting slots, and the second magnet is fixedly installed in the second mounting slots.

[0014] According to another aspect of this application, a razor is further provided, including any of the magnetic fixing structures described in the preferred embodiments above.

[0015] Compared with the prior art, the magnetic fixing structure and razor provided by this utility model have at least one of the following beneficial effects:

[0016] 1. The first magnet is installed in the first mounting groove with a radial opening on the tool holder, and the first magnet is axially constrained. After the cover and the base are assembled, the outer wall of the cover is adapted to form a radial abutment constraint with the radial end face of the first magnet near the central axis of the base. The first magnet is more stably fixed, and the magnetic connection between the tool holder and the tool holder is more reliable. This reduces the connection failure problem caused by the loosening of the first magnet and improves the overall quality and service life of the product.

[0017] 2. The annular side extends axially along the outer edge of the central body and forms a radial abutment with the groove wall of the assembly groove. This not only enhances the connection strength between the cover and the base, but also provides a reliable abutment limit for the radial end face of the first magnet.

[0018] 3. The assembly body has several arc-shaped recesses distributed at intervals along the circumference. These arc-shaped recesses not only provide installation space for the first mounting slot, but also enhance the stability and aesthetics of the base through their unique shape design.

[0019] 4. By setting a support groove and a support plate at the bottom of the first mounting groove, the wall thickness at the top and bottom of the first mounting groove is effectively reduced, thereby reducing the risk of shrinkage during injection molding; the bottom support plane formed at the top of the support plate provides a stable support point for the first magnet, ensuring the stability and reliability of the first magnet after installation. Attached Figure Description

[0020] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0021] Figure 1 This is a cross-sectional view of the installation of the first magnet;

[0022] Figure 2 This is an exploded view of the knife holder;

[0023] Figure 3 This is a structural diagram of the base;

[0024] Figure 4 This is a structural diagram of the cover.

[0025] Explanation of icon numbers:

[0026] Tool holder 1, base body 11, assembly body 111, assembly groove 1111, arc-shaped recess 1112, first mounting groove 1113, first magnet 1114, snap-fit ​​groove 1115, receiving body 112, support groove 1121, support plate 1122, cover 12, annular side 121, central body 122, elastic locking block 113, placement block 114.

[0027] Tool holder 2, second mounting slot 21, second magnet 22. Detailed Implementation

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0029] To keep the drawings concise, each figure only schematically shows the parts relevant to the utility model, and these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0030] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0031] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Furthermore, in the description of this application, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this utility model. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

[0033] refer to Figure 1 and Figure 2This utility model provides a magnetic fixing structure, including a tool holder 1 and a tool post 2. The tool holder 1 includes a base 11 and a cover 12 that are axially assembled. The inner sidewall of the base 11 has a plurality of first mounting grooves 1113 distributed circumferentially. The openings of the first mounting grooves 1113 face the central axis of the base 11 and are adapted to embed first magnets 1114. The cover 12 is adapted to be fixedly installed on the top of the base 11, and the outer sidewall of the cover 12 is adapted to form abutment constraint with the radial end face of the first magnet 1114 near the central axis of the base 11. The tool post 2 is adapted to install a tool mesh assembly. The bottom of the tool post 2 is also provided with a plurality of second magnets 22 at the corresponding positions of the first magnets 1114. The first magnets 1114 and the second magnets 22 are adapted to attract each other and detachably install the tool post 2 onto the tool holder 1.

[0034] In this embodiment, the first magnet 1114 is installed in the first mounting groove 1113 with a radial opening on the tool holder 1, and the first magnet 1114 is axially constrained. After the cover 12 is assembled with the base 11, the outer wall of the cover 12 is adapted to form a radial abutment constraint with the radial end face of the first magnet 1114 near the central axis of the base 11. The first magnet 1114 is more stably fixed, and the magnetic connection between the tool holder 2 and the tool holder 1 is more reliable. This reduces the connection failure problem caused by the loosening of the first magnet 1114, and improves the overall quality and service life of the product.

[0035] Specifically, the tool holder 1 includes a base 11 and a cover 12 that are assembled together and axially connected. Multiple first mounting grooves 1113 are evenly distributed circumferentially on the inner wall of the base 11. The openings of these first mounting grooves 1113 face the central axis of the base 11, allowing a first magnet 1114 to be embedded radially into the first mounting groove 1113. The groove walls of the first mounting grooves 1113 then provide axial constraint for the first magnet 1114. The cover 12 is fixedly installed on the top of the base 11. After assembly, its outer wall can tightly fit against the radial end face of the first magnet 1114 near the central axis of the base 11, forming an effective radial contact constraint. This further strengthens the installation effect of the first magnet 1114, significantly improving its stability and greatly enhancing the reliability of the magnetic connection between the tool holder 2 and the tool holder 1. This effectively avoids the risk of connection failure caused by loosening of the first magnet 1114, strongly guaranteeing the overall quality and service life of the product.

[0036] The tool holder 2 is equipped with a floating blade mesh assembly to meet practical usage requirements. The specific structures of the tool holder 2, tool base 1, and blade mesh assembly are all existing technologies in the field, and will not be further described here. Several second magnets 22 are provided at the bottom of the tool holder 2 corresponding to the position of the first magnet 1114. When the first magnet 1114 and the second magnets 22 approach each other, they attract each other magnetically, enabling the tool holder 2 and tool base 1 to be detachably installed. This ensures the stability of the connection and facilitates subsequent disassembly and maintenance, providing great convenience to the user and demonstrating excellent performance and practicality of the entire magnetic fixing structure in practical applications. It is worth noting that this application does not further limit the installation method of the second magnets 22. Preferably, the tool holder 2 is provided with several second mounting slots 21, and the second magnets 22 are fixedly installed in the second mounting slots 21.

[0037] Further, refer to Figure 3 and Figure 4 The top of the base 11 is provided with an assembly groove 1111, and the first mounting groove 1113 is provided on the groove wall of the assembly groove 1111. The cover 12 includes an annular side 121 and a central body 122. The central body 122 is matched and installed in the assembly groove 1111. The annular side 121 extends axially along the outer edge of the central body 122 and forms a radial abutment with the groove wall of the assembly groove 1111. At this time, the annular side 121 is suitable for abutting and limiting the radial end face of the first magnet 1114.

[0038] In this embodiment, the annular side 121 extends axially along the outer edge of the central body 122 and forms a radial abutment with the groove wall of the mounting groove 1111. This not only enhances the connection strength between the cover 12 and the seat 11, but also provides a reliable abutment limit for the radial end face of the first magnet 1114.

[0039] Specifically, the top of the base 11 is provided with an assembly groove 1111, and a first mounting groove 1113 is disposed on the groove wall of the assembly groove 1111. The assembly groove 1111 provides positioning and foundation for the first mounting groove 1113, making the installation of the first magnet 1114 more stable, and also facilitating subsequent assembly operations. The cover 12 includes an annular side 121 and a central body 122. The central body 122 matches the groove opening of the assembly groove 1111, and can be precisely installed in the assembly groove 1111, ensuring a tight connection between the cover 12 and the base 11. The annular side 121 extends axially along the outer edge of the central body 122 and forms radial abutment with the groove wall at the groove opening of the assembly groove 1111. When the first magnet 1114 is installed in the first mounting groove 1113, the annular side 121 of the cover 12 can fit tightly against the radial end face of the first magnet 1114, thus forming a double constraint: on the one hand, the first mounting groove 1113 provides axial constraint to the first magnet 1114, ensuring its stability in the axial direction; on the other hand, the annular side 121 of the cover 12 abuts against the radial end face of the first magnet 1114, forming a radial constraint, further preventing the first magnet 1114 from loosening in the radial direction. This double constraint makes the first magnet 1114 more firmly fixed in the tool holder 1, greatly improving the reliability of the magnetic connection. It is worth noting that in modified embodiments, the side wall of the central body 122 can also be used to abut against the first magnet 1114 directly, as long as the cover 12 can form a radial constraint with the first magnet 1114, it is within the protection scope of this application.

[0040] Preferably, the seat 11 includes an assembly body 111 and a receiving body 112. The assembly body 111 is provided with an assembly groove 1111, and the receiving body 112 is suitable for placing a transmission component. The assembly body 111 has a plurality of arc-shaped recesses 1112 distributed circumferentially, and a first mounting groove 1113 is radially opened on the inner sidewall of the arc-shaped recesses 1112. The outer contour of the central body 122 of the cover 12 matches the inner sidewall of the assembly body 111.

[0041] In this embodiment, the assembly body 111 has several arc-shaped recesses 1112 distributed circumferentially. These arc-shaped recesses 1112 not only provide installation space for the first mounting groove 1113, but also enhance the stability and aesthetics of the seat body 11 through their unique shape design.

[0042] Specifically, the assembly body 111 is the core part of the base 11, and its interior is provided with an assembly groove 1111 for mounting the central body 122 of the cover 12. The receiving body 112 is located below the assembly body 111, and its internal space is used to house the transmission components. This separates the magnetic fixing structure from the transmission components, avoiding mutual interference and improving the overall operating efficiency and reliability of the device. The structural layout of the transmission components is prior art and will not be further described in this application. The arc-shaped recesses 1112 are distributed circumferentially around the assembly body 111, forming uniform circular or arc-shaped grooves around the circumference of the assembly body 111. First mounting grooves 1113 are radially formed on the inner sidewalls of these arc-shaped recesses 1112 for embedding the first magnet 1114. The main function of the arc-shaped recesses 1112 is to provide a mounting position for the first magnet 1114 and to enhance the fixing stability of the magnet through their shape design. These components, by radially abutting against the annular side 121 of the cover 12, further restrict the movement of the first magnet 1114, ensuring the reliability of the magnetic connection and also contributing to an aesthetically pleasing appearance, making the overall appearance of the base 11 more streamlined and harmonious. The outer contour of the central body 122 of the cover 12 matches the inner wall of the base 11, allowing the cover 12 to be tightly installed in the mounting groove 1111, ensuring the sealing and stability between the cover 12 and the base 11. The annular side 121 of the cover 12 forms a radial abutment against the groove wall of the mounting groove 1111, further enhancing the connection strength between the cover 12 and the base 11, and also providing reliable abutment and limiting for the radial end face of the first magnet 1114.

[0043] Furthermore, the housing body 112 is provided with a support groove 1121, which is connected to the bottom wall of the first mounting groove 1113. Several protruding support plates 1122 are distributed at intervals in the support groove 1121, and the tops of the support plates 1122 together form a bottom support plane for placing the first magnet 1114.

[0044] In this embodiment, by providing a support groove 1121 and a support plate 1122 at the bottom of the first mounting groove 1113, the wall thickness at the top and bottom of the first mounting groove 1113 is effectively reduced, thereby reducing the risk of shrinkage during injection molding; the bottom support plane formed at the top of the support plate 1122 provides a stable support point for the first magnet 1114, ensuring the stability and reliability of the first magnet 1114 after installation.

[0045] Specifically, the support groove 1121 is located inside the receiving body 112 and communicates with the bottom wall of the first mounting groove 1113. Several protruding support plates 1122 are spaced apart within the support groove 1121, allowing the support plates 1122 to directly support the bottom of the first mounting groove 1113, thereby reducing the wall thickness in that area. These support plates 1122 are evenly distributed within the support groove 1121, and their tops collectively form a bottom support plane. This bottom support plane is specifically designed to place the first magnet 1114, ensuring that the first magnet 1114 can be placed stably during installation and preventing tilting or loosening due to improper installation. Furthermore, the spaced distribution of the support plates 1122 evenly distributes the weight of the first magnet 1114, reducing local stress concentration and thus improving the overall stability of the structure. In this way, even with the reduced bottom wall thickness of the first mounting groove 1113, the first magnet 1114 can still be effectively supported and fixed. By setting the support groove 1121 and the support plate 1122, the problem of injection shrinkage caused by excessive wall thickness is effectively solved, improving the molding quality and production efficiency of the product. Reducing the wall thickness and simplifying the injection molding process helps to lower material and production costs, enhancing the product's market competitiveness. Furthermore, the support plate 1122 also elevates the first magnet 1114, further reducing the sidewall of the top of the first mounting groove 1113, ensuring that the wall thickness of the tool holder 1 does not affect the magnetic attraction effect of the first magnet 1114 and the second magnet 22. In other words, the support plate 1122 raises the first magnet 1114 to a suitable position, enabling it to better connect magnetically with the second magnet 22.

[0046] Preferably, the wall thickness of the receiving body 112 gradually decreases from top to bottom along the axial direction. The support plate 1122 is triangular, with its right-angle vertex located at the opening of the first mounting groove 1113, and the right-angle vertex having a rounded transition portion. The hypotenuse of the support plate 1122 matches the sidewall of the receiving body 112. In this embodiment, the wall thickness of the receiving body 112 gradually decreases from top to bottom along the axial direction. This not only helps to balance the strength and weight of the entire structure, but also reduces material usage, improves production efficiency and reduces costs. It also helps to reduce shrinkage during injection molding and improve the molding quality of the product. The triangular shape of the support plate 1122 provides high structural stability and can evenly distribute the weight of the first magnet 1114. The right-angle vertex of the support plate 1122 is located at the opening of the first mounting groove 1113, allowing the support plate 1122 to better fit with the opening of the first mounting groove 1113, thus providing a limiting and supporting function. The right-angle vertex of the support plate 1122 is provided with a rounded transition section, which can reduce stress concentration and avoid material fatigue and damage caused by sharp edges. The inclined side of the support plate 1122 matches the side wall of the receiving body 112, so that the support plate 1122 can better fit the shape of the receiving body 112, further improving the stability and reliability of the support.

[0047] Furthermore, the inner sidewall of the base 11 is provided with circumferentially spaced snap-fit ​​grooves 1115, and the outer sidewall of the cover 12 is provided with a number of elastic snap-fit ​​blocks 113 that are adapted to the snap-fit ​​grooves 1115. The elastic snap-fit ​​blocks 113 are distributed at equal angles along the circumference and their outer sidewalls are provided with guide slopes. Through the radial snap-fit ​​engagement between the elastic snap-fit ​​blocks 113 and the snap-fit ​​grooves 1115, the cover 12 is snapped and fixed in the assembly groove 1111 of the base 11.

[0048] In this embodiment, the base 11 and the cover 12 are fastened by the cooperation of the elastic locking block 113 and the locking groove 1115, which not only improves the convenience of assembly, but also enhances the stability of the structure.

[0049] Specifically, the inner wall of the base 11 is provided with multiple locking grooves 1115 spaced circumferentially. These locking grooves 1115 are evenly distributed to ensure that the cover 12 is evenly stressed during installation. The outer wall of the cover 12 is provided with several elastic blocks 113, which correspond one-to-one with the locking grooves 1115 on the base 11 to form a precise fit. The elastic blocks 113 are evenly distributed circumferentially, ensuring that the cover 12 is evenly stressed on the base 11 and improving the symmetry and stability of the assembly. The outer wall of each elastic block 113 is provided with a guide slope, which allows the cover 12 to slide more smoothly into the locking grooves 1115 of the base 11 during assembly, reducing assembly difficulty and improving assembly efficiency.

[0050] More specifically, when the cover 12 is installed into the mounting groove 1111 of the base 11, the elastic locking block 113 is first guided by the guide ramp and gradually enters the locking groove 1115. As the cover 12 is further pressed in, the elastic locking block 113 undergoes elastic deformation during its entry into the groove, and returns to its original shape after being fully inserted into the locking groove 1115, thereby achieving a radial locking fit. This locking method is not only firm and reliable, but also effectively prevents the cover 12 from loosening due to vibration or external force during use. Through the radial locking fit between the elastic locking block 113 and the locking groove 1115, the cover 12 is firmly fixed in the mounting groove 1111 of the base 11, which not only improves the convenience of assembly, but also enhances the stability and reliability of the overall structure, ensuring the good performance of the tool holder 1 during use.

[0051] It is worth noting that the detachable connection method of the base 11 and the cover 12 includes, but is not limited to, a snap-fit ​​structure, and can also be a screw connection, a threaded connection, a pin connection, etc. This application will not elaborate further or limit it here.

[0052] Furthermore, a number of placement blocks 114 are provided on the inner side wall of the seat 11, and the placement blocks 114 are adapted to abut against the bottom of the cover 12.

[0053] In this embodiment, the placement block 114 abuts against the bottom of the cover 12, providing additional support and positioning functions, and enhancing the contact stability between the cover 12 and the seat 11.

[0054] Specifically, when the cover 12 is installed into the mounting groove 1111 of the base 11, the bottom of the cover 12 abuts against the placement block 114 on the base 11, forming a tight contact. The placement block 114 can effectively disperse the pressure on the bottom of the cover 12, reduce local stress concentration, and thus improve the stability and reliability of the overall structure.

[0055] Furthermore, this application provides a razor that includes the magnetic fixing structure found in any of the above embodiments.

[0056] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this utility model. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A magnetic fixing structure, characterized in that, include: The tool holder includes an axially assembled base and a cover. The inner sidewall of the base has a plurality of first mounting grooves distributed circumferentially. The openings of the first mounting grooves face the central axis of the base and are adapted to embed a first magnet. The cover is adapted to be fixedly installed on the top of the base, and the outer sidewall of the cover is adapted to form an abutment constraint with the radial end face of the first magnet near the central axis of the base. The tool holder is adapted to mount a tool mesh assembly. At the bottom of the tool holder, at a position corresponding to the first magnet, a plurality of second magnets are also provided. The first magnet and the second magnets are adapted to attract each other and detachably mount the tool holder to the tool base.

2. The magnetic attraction fixing structure according to claim 1, characterized in that, The top of the base is provided with an assembly groove, and the first mounting groove is disposed on the groove wall of the assembly groove; The cover includes an annular side and a central body. The central body is fitted into the assembly groove. The annular side extends axially along the outer edge of the central body and forms a radial abutment with the groove wall of the assembly groove. At this time, the annular side is adapted to abut and limit the radial end face of the first magnet.

3. The magnetic attraction fixing structure according to claim 2, characterized in that, The base includes an assembly body and a receiving body. The assembly body has the assembly groove inside, and the receiving body is adapted to place the transmission component inside. The assembly body has a plurality of arc-shaped recesses distributed circumferentially, and the first mounting groove is radially opened on the inner sidewall of the arc-shaped recesses. The outer contour of the central body of the cover matches the inner sidewall of the assembly body.

4. The magnetic attraction fixing structure according to claim 3, characterized in that, The receiving body is provided with a support groove, which is connected to the bottom wall of the first mounting groove. Several protruding support plates are distributed at intervals in the support groove, and the top of the support plates together form a bottom support plane for placing the first magnet.

5. The magnetic attraction fixing structure according to claim 4, characterized in that, The wall thickness of the receiving body gradually decreases from top to bottom along the axial direction. The support plate is triangular, with the right-angle vertex of the support plate located at the opening of the first mounting groove, and the right-angle vertex is provided with an arc transition part. The hypotenuse of the support plate matches the side wall of the receiving body.

6. A magnetic attraction fixing structure according to any one of claims 1-5, characterized in that, The inner wall of the seat is provided with circumferentially spaced snap-fit ​​grooves, and the outer wall of the cover is provided with a number of elastic snap-fit ​​blocks that are adapted to the snap-fit ​​grooves. The elastic snap-fit ​​blocks are distributed at equal angles along the circumference and their outer walls are provided with guide slopes. The cover is snapped and fixed in the assembly groove of the seat by the radial snap-fit ​​cooperation between the elastic snap-fit ​​blocks and the snap-fit ​​grooves.

7. The magnetic attraction fixing structure according to claim 6, characterized in that, The inner side wall of the seat is also provided with several placement blocks, which are adapted to abut against the bottom of the cover.

8. The magnetic attraction fixing structure according to claim 1, characterized in that, The tool holder is provided with several second mounting slots, and the second magnet is fixedly installed in the second mounting slots.

9. A razor, characterized in that, Includes the magnetic attraction fixing structure as described in any one of claims 1-8.

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