Automatic razor blade changing system

Abstract

The present application belongs to the field of shavers, and particularly discloses an automatic shaver changing system for a handheld shaver, comprising: a changing module, which exerts a force on a head of the handheld shaver to detach the head from the handheld shaver after the handheld shaver reaches a set position; and a shaver rack, in which the handheld shaver is placed upside down and sent to the set position. In the present application, an external force is applied to the changing module, which indirectly acts on the head, thereby realizing contactless detachment of the head. Furthermore, a control assembly is added to control a driving mechanism for moving the handheld shaver, so that the upside-down shaver is detached with the head facing downward, reducing injury to the outside world.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of razor replacement in small household appliances, and particularly to an automatic razor replacement system. BACKGROUND

[0002] As a commonly used small household appliance, razors have been widely applied. They are favored by people due to their convenience and small size.

[0003] In the prior art, when the blade is used for a long time or has a problem, the razor replacement function is realized by disassembling the head assembly. In this process, the operator or user is easily scratched during replacement. SUMMARY

[0004] The embodiment of the present application provides an automatic razor replacement system for a handheld razor. The razor replacement system controls the handheld razor so that the problematic head is automatically disassembled and thus does not come into contact with the user's skin, thereby protecting the user.

[0005] The technical scheme for achieving the present application is as follows:

[0006] The automatic razor replacement system is used for a handheld razor and includes:

[0007] A razor replacement module that exerts a force on the head of the handheld razor to disassemble the head from the handheld razor after the handheld razor reaches a set position.

[0008] A razor holder on which the handheld razor is placed upside down and sent to the set position.

[0009] In the present technical scheme, the handheld razor is controlled to reach a certain position, and then the razor replacement module exerts a force on the head. The user does not need to directly contact the head, and the head is disassembled from the handheld razor. Specifically, the handheld razor can be moved to the set position by external force and control, and disassembly is achieved.

[0010] In the present technical scheme, the handheld razor is placed upside down on the razor holder, and the head faces the razor holder. The handheld razor is then moved to the set position by sliding on the razor holder, and the head is disassembled from the razor.

[0011] In the technical solution, the handheld shaver is selected, the volume is small, the head structure is relatively smaller, the blade on the head is easy to hurt the user, and the placed rack and the set position are combined to realize the effect of disassembling the head without contact when meeting the requirements.

[0012] As a further improvement of the application, the handheld shaver comprises a handle, the head is magnetically connected to the handle, and the head is separated from the handle under the action of force.

[0013] In the technical solution, the head is magnetically connected to the handle, compared with clamping or other connection methods, the magnetic connection method has fewer connection components, and when the external force is greater than the magnetic attraction force, the head can be smoothly disassembled to complete the replacement work of the head.

[0014] As a further improvement of the application, the shaver placing rack comprises a rack body, a handle clamping module fixed on the rack body, and the handle of the handheld shaver is clamped on the handle clamping module, and the handle forms an angle of 10°-30° with the horizontal plane.

[0015] In the technical solution, the handle clamping module clamps the handle on the rack body, and the handle is inclinedly arranged on the horizontal plane, at this time, the handle is equivalent to being inclinedly attached to the horizontal plane, and the stability of the handle assembly is ensured, if the handle is arranged vertically or parallel to the horizontal plane formed in the vertical direction of the handle clamping module, the assembly stability is poor, and accidents are prone to occur. Further, the angle of 10°-30° is arranged, when the head is disassembled later, the inclined acute angle stress is decomposed into multiple directions, which is convenient for disassembly, if the angle is less than 10°, the standing stability is poor, and if the angle is greater than 30°, the distance from the head changing module is too far, and the head is difficult to disassemble.

[0016] As a further improvement of the application, the head is closer to the head changing module than the handle, and the head changing module only applies force to the head.

[0017] In the technical solution, the head is close to the head changing module, and when the head changing module acts, only force is applied to the head, which avoids the collision and working influence of the head changing module on other structures, and the head is close to the head changing module, the assembly space is compact, and the head changing module slightly acts on the head to realize replacement and disassembly.

[0018] As a further improvement of the application, the head changing module applies downward force to the head, and the force is greater than the magnetic attraction force of the head.

[0019] The tool changing module provides a downward force, so that the tool head moves downward and away from the handle that is magnetically attracted to the tool head, thereby achieving disassembly, and the force is greater than the magnetic attraction force of the tool head, thereby achieving the effect of directly overcoming the magnetic attraction force and separating the tool head.

[0020] As a further improvement of the present application, the tool changing module comprises a tool changing body, a tool knocking device fixed to the tool changing body, the tool knocking device performing circular arc motion, and the action point of the tool head being located on the track of the circular arc motion.

[0021] In the present application, the tool knocking device is used to knock off the old tool head and replace it, and the action point of the tool head is cleverly arranged on the circular arc track of the tool knocking device, so that the tool head is directly knocked off when the tool knocking device performs circular arc motion, thereby achieving the effect of automatic tool changing.

[0022] As a further improvement of the present application, the tool knocking device comprises two symmetrical support arms, the support arms vertically extending to form a buckling arm, and the action point of the tool head being located at the region where the buckling arm and the support arm are connected.

[0023] In the present application, the support arm forms a buckling arm, which is formed by the same structure but forms a certain semi-closed space, thereby protecting the action point of the tool head in the semi-closed space and avoiding the action point from being touched by external or other structures, thereby reducing the occurrence of misoperation.

[0024] As a further improvement of the present application, the two support arms form a U-shaped structure, and the tool head is located in the avoiding region formed by the U-shaped structure.

[0025] In the present application, a U-shaped structure is formed, and the tool head is arranged at the bottom and protected by the two sides of the U-shaped structure, so that the tool head cannot be accidentally touched, and the region in the U-shaped structure can be used for movement, thereby achieving the avoiding effect for circular track movement.

[0026] As a further improvement of the present application, the tool changing body drives the tool knocking device to perform circular motion around the central axis of the tool changing body.

[0027] In this technical solution, circular motion is performed with the central axis of the tool changer body as the center. At this time, the avoidance space is cleverly utilized, and the tool changer body is driven, and then the power source or transmission component is set on the tool changer body. The entire tool changer module undertakes all the components to form a compact structure, and all movements are completed within the structure, with a sophisticated design.

[0028] As a further improvement of the present invention, the magnetic adsorption force is 3-8N.

[0029] In this technical solution, the magnetic attraction force is required to attract relatively small cutter heads, so the magnetic attraction force must be present. However, since automatic disassembly is required in the later stage, if the magnetic attraction force is too large, the additional force during disassembly will also increase, and the cost will increase. Therefore, it is only necessary to select a force that can be magnetically attracted, but the force will not be too large, and the cutter head will not fall off, which is within the range of 3-8N. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic structural diagram of the automatic blade changing system for shavers provided by the present invention;

[0031] Figure 2 A right side view of the automatic blade changing system for shavers provided by the present invention;

[0032] Figure 3 This is one of the structural schematic diagrams of the handle clamping module provided by the present invention;

[0033] Figure 4 This is the second structural diagram of the handle clamping module provided by the present invention;

[0034] Figure 5 A schematic structural diagram of the guide rail assembly provided by the present invention;

[0035] Figure 6 An assembly diagram of the handheld razor and shaving device provided by the present invention;

[0036] Figure 7 A schematic structural diagram of the knife-beating device provided by the present invention;

[0037] In the picture:

[0038] 100, handheld razor; 110, blade head; 120, handle; 200, blade changing module; 210, blade changing body; 220, blade beating device; 221, support arm; 222, buckle arm; 300, razor placement rack; 310, rack; 320, handle clamping module; 321, clamping slider; 322, triangular bevel block; 323, slider fixing; 324, spring; 400, guide rail assembly; 410, blade holder; 420, rack; 430, guide rail fixing block; 440, blade changing motor. DETAILED DESCRIPTION

[0039] The application will be described in detail below with reference to the embodiments shown in the drawings, but it should be noted that these embodiments are not limiting to the application, and equivalent transformations or substitutions of function, method or structure made by those skilled in the art according to these embodiments are within the protection scope of the application.

[0040] In the description of the embodiments, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting to the application.

[0041] In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0042] The terms "mounting", "connecting", "connection" should be broadly understood, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0043] First, in this embodiment, the working principle of the automatic razor blade changing system is introduced.

[0044] Referring to the drawings Figures 1-7 The automatic razor blade changing system in this embodiment is used for a handheld razor 100, which comprises:

[0045] The blade changing module 200 exerts a force on the blade head 110 on the handheld razor 100 to detach the blade head 110 from the handheld razor 100 after the handheld razor 100 reaches the set position.

[0046] The razor placing rack 300, the handheld razor 100 is placed upside down on the razor placing rack 300, and the handheld razor 100 is sent to the set position.

[0047] The working process of the present application is as follows: the tool changing module 200 is used as a power mechanism or driving mechanism, which in turn acts on the handheld shaver 100 placed on the shaver holder 300 to realize the non-contact disassembly of the head.

[0048] In this embodiment, in the handheld shaver, by controlling the handheld shaver to reach a certain position, and then making it close to the driving mechanism and the like, the corresponding disassembly is carried out, which ensures the accurate disassembly of the head. The set position is specifically the position where the head is close to the driving mechanism, at which time the driving mechanism directly acts to make the head be disassembled.

[0049] In the present application, external force is used to act on the tool changing module, which in turn indirectly acts on the head to realize the non-contact disassembly of the head. Further, the control assembly can be used to control the driving mechanism that drives the movement of the handheld shaver, so that the inverted shaver is disassembled with the head downward, reducing the harm to the outside world. In the present application, safety factors and the like are fully considered. Specifically, the handheld shaver is placed upside down, and the head is directed toward the inside of the shaver holder 300, and the disassembled head directly moves downward without moving upward or in other directions, so that the head after being stressed will not touch other structures or users even if it moves, and the safety is higher.

[0050] In the present application, the tool changing module is used to exert force on the head, and the user does not need to directly contact the head to disassemble the head from the handheld shaver. Specifically, the handheld shaver can be moved to a set position by means of external force and control to realize disassembly.

[0051] In the present application, specifically, a slide and the like can be provided on the shaver holder 300, so that the handheld shaver moves along the slide to the set position, thereby reducing the increase of the moving area outside. In the present application, the handheld shaver is selected, which is small in size and relatively small in head structure, so that the blades and the like on the head are easy to hurt the user. However, the increase of the holder and the set position makes it possible to realize the non-contact disassembly of the head when the requirements are met, while the prior art is mostly disassembled by hand, which is poor in automation.

[0052] Secondly, the specific structure of the handheld shaver 100 and the shaver holder, combined with the tool changing process, is introduced.

[0053] Referring to the accompanying Figure 1 In this embodiment, the handheld shaver 100 includes a handle 120, and the head 110 magnetically connected to the handle 120, and the head 110 is separated from the handle 120 under the action of force.

[0054] In the embodiment, the head 110 is connected to the handle 120 by magnetic attraction. Compared with clamping or other connection methods, the magnetic attraction method has fewer connection components, and when external force is greater than the magnetic attraction force, the head can be smoothly detached, thereby completing the head replacement work. Moreover, the magnetic attraction connection method is easy to clean and replace the connection part. In the embodiment, in order to achieve replacement at this time, a force is directly applied to the head 110 to move it downward, thereby achieving disengagement from the handle 120 and completing the disassembly process. In the embodiment, because the head is arranged downward, it has gravity at this time. The purpose of magnetic attraction is to complete connection and overcome gravity. If a downward force is applied at this time, the gravity and the magnetic attraction force are combined to overcome the magnetic attraction force, thereby completing disassembly.

[0055] Referring to the drawings, the razor holder 300 includes a holder body 310, a handle clamping module 320 fixed to the holder body 310, and the handle 120 of the manual razor 100 is clamped to the handle clamping module 320. After the handle 120 is clamped to the handle clamping module 320, the handle 120 forms an angle of 10°-30° with the horizontal plane.

[0056] In the embodiment, the handle clamping module 320 clamps the handle 120 to the holder body 310, and the handle 120 is arranged obliquely to the horizontal plane. At this time, the handle 120 is equivalent to being attached obliquely to the horizontal plane, and clamping is combined to ensure the stability of the handle 120 assembly. If the handle 120 is arranged vertically or parallel to the horizontal plane formed in the vertical direction of the handle clamping module, the assembly stability is poor, a large support body needs to be added for support, and the handle 120 is prone to swinging and accidents.

[0057] Further, the angle of 10°-30° is arranged. When the head is disassembled later, the oblique acute angle force is decomposed into multiple directions, which facilitates disassembly. If the angle is less than 10°, the handle 120 is unstable, and if the angle is greater than 30°, the distance between the handle 120 and the tool changing module is too far, which makes it difficult to disassemble. Compared with other assembly methods, the assembly with a small oblique angle has good force decomposition and cooperation when it is used later, especially when the tool changing device rotates. The rotation of the tool changing device only causes the head at the end to fall, and has little effect on the handle, thereby avoiding the handle from being driven to rotate.

[0058] In the embodiment, when assembled, the main body of the handle clamping module 320 is designed to be an oblique L shape, and the angle with the horizontal plane is 15 degrees, so that the whole is more beautiful, and the handle shaving razor is more easily detached when changing tools by decomposition of gravity. The front end of the main body is designed to be a U shape to hold the handle. The structure of the tightening block and the block fixing part is fixed together by a screw. The handle is clamped under the action of the spring. When the handle is removed, the top of the triangular inclined block is pressed to move the triangular inclined block downward, expand the block fixing part to drive the block to open to both sides, thereby releasing the handle and completing the removal of the handle. When the handle is released, the inclined block returns to the original position under the rebound force of the spring.

[0059] Referring to the drawings Figures 3-4 As shown in the drawings, in the present application, the handle 100 is clamped by the clamping slider 321 in the handle clamping module, so as to be fixed, and the handle clamping module 320 is provided with a supporting triangular inclined block 322, a slider fixing 323 and a spring 324 on the side away from the clamping slider 321, and the spring 324 is located below the triangular inclined block 322 and on both sides of the slider fixing 323, so as to achieve good clamping.

[0060] In order to realize high efficiency and space saving, the tool bit 110 is closer to the tool changing module 200 than the handle 120, and the tool changing module 200 only exerts force on the tool bit 10. Referring to the drawings, the tool bit 110 in the present application is close to the tool changing module 200, and when the tool changing module 200 acts, it only exerts force on the tool bit 110, avoiding the collision and work influence of the tool changing module 200 on other structures, and the tool bit is close to the tool changing module, the assembly space is compact, and the tool changing module slightly moves to act on the tool bit, realizing replacement, disassembly and the like. In the embodiment, the action of the tool bit falling is fully considered, and then the tool bit is arranged close to the tool changing module 200, and the tool changing module does not act on other structures, and the effect is better.

[0061] In order to disassemble more quickly, the tool changing module 200 exerts downward force on the tool bit 110, and the force is greater than the magnetic attraction force of the tool bit 110. In the present application, the tool changing module provides downward force, which is auxiliary to the previous reverse buckle setting, so that the tool bit moves downward and away from the handle with magnetic attraction, realizes disassembly, the force is greater than the magnetic attraction force of the tool bit, realizes the effect of directly overcoming the magnetic attraction force and separating it. In the present application, the space distribution is ingeniously utilized, so that the tool changing module is close to the tool bit, and directly acts on the tool bit for replacement, and the structure is ingenious and disassembly is convenient.

[0062] Again, the specific structure of the tool changing module is mainly introduced.

[0063] Referring to the drawings Figure 3 As shown in the drawings, the tool changing module 200 includes a tool changing body 210, a tool hitting device 220 fixed on the tool changing body 210, the tool hitting device 220 moves in a circular arc, and the action point of the tool bit 110 is located on the track of the circular arc movement.

[0064] In the embodiment, the old cutter head is knocked off and replaced by the knocking device 220, and the action point of the cutter head is ingeniously arranged on the circular arc track of the knocking device. When the knocking device performs the circular arc motion, the cutter head is directly knocked off, thereby achieving the effect of automatic tool changing. In the present application, compared with other track modes, the circular arc track can be completed by rotation, etc., and the circular arc track is shorter in length or width compared with the linear track, and the circular arc track can be partially parallel to the handle, etc., so that the overall structure tends to be square, etc., without lengthening the length, and the stability is better.

[0065] Specifically, the knocking device 220 includes two symmetrical support arms 221, which are vertically extended to form a buckle arm 222, and the action point of the cutter head 110 is located at the area where the buckle arm 222 is connected with the support arm 221.

[0066] In the embodiment, the support arm forms the buckle arm, which is formed by the same structure, but forms a certain semi-closed interval, so as to protect the action point of the cutter head in the semi-closed space, avoid the misoperation of external or other structures, touch the action point, and reduce the occurrence of misoperation.

[0067] In order to realize compact installation and avoidance, the two support arms 221 form a U-shaped structure, and the cutter head 110 is located in the avoidance area formed by the U-shaped structure. In the embodiment, the support arm forms a U-shaped structure, and the cutter head is arranged at the bottom, and the two sides of the cutter head are protected by the two sides of the U-shaped structure, so that the cutter head cannot be accidentally touched, and the area in the U-shaped structure can be used for movement, thereby realizing the avoidance of the circular track movement.

[0068] Further, in the embodiment, the support arm 221 of the knocking device forms a U-shaped structure, so that when the cutter head is knocked, the knocking device is turned to the position of the cutter head of the handheld shaver under the driving of the servo motor, the U-shaped device just clamps the two sides of the cutter head, so that the cutter head falls off from the handle and falls into the water tank. Then the knocking device is reversed to return to the original position.

[0069] In actual use, the cutter head 110 has a certain length, and the length of the handle is longer than the length of the cutter head, so that the cutter head is arranged in the handle. Figure 3 As can be seen, the support arm 221 of the knocking device forms a U-shaped structure to clamp the cutter head, but the cutter head is partially outside. At this time, the clamped cutter head is driven to move downward by continuing to rotate the knocking device, thereby realizing the knocking process.

[0070] In order to reduce the movement space of the knocking device, the tool changing body 210 drives the knocking device 220 to perform the circular motion around the central axis of the tool changing body 210.

[0071] In this embodiment, circular motion is performed with the central axis of the tool changer body as the center. At this time, the avoidance space is cleverly utilized, and the tool changer body is driven, and then the power source or transmission component is set on the tool changer body. The entire tool changer module undertakes all the components to form a compact structure, and all movements are completed within the structure, with a sophisticated design.

[0072] In order to achieve a better force, the magnetic adsorption force is 3-8N.

[0073] In this embodiment, the magnetic attraction force is required to attract a relatively small cutter head, so the magnetic attraction force must be present. However, since automatic disassembly is required later, if the magnetic attraction force is too large, the additional force during disassembly will also increase, and the cost will increase. Therefore, it is only necessary to select a force that can be magnetically attracted, but the force will not be too large, and the cutter head will not fall off, so it is necessary to select a force within the range of 3-8N.

[0074] The detailed usage process of the present invention is as follows: First, a movement area is set in the frame 310 of the razor placement rack 300, and a handle clamping module 320 is set on the side thereof. The cutter head assembled on the handheld razor 100 moves along the movement area to a position close to the handle clamping module 320 under the action of external force; secondly, the handle clamping module 320 is used to clamp the handle 120 of the handheld razor 100, and the cutter head 110 corresponds to the cutter changing module 200. At this time, the cutter changing module 200 The tool changer body 210 on the tool changer 0 has a symmetrical structure, with a handle clamping module 320 provided on one side and a drive mechanism, such as a motor, provided on the other side. A support arm 221 and a locking arm 222 are then provided on the tool-beating device 220 mounted on the tool changer body 210. The cutter head 110 is now located within the space formed by the support arm 221 and the locking arm 222, and the motor drives the tool-beating device 220 to rotate, causing the tool-beating device to act on the cutter head 110, thereby automatically disassembling the cutter head 110. In the present invention, the tool-beating device 220 performs a circular motion. At this time, its forward motion generates a downward arc trajectory, allowing the cutter head 110 to be disassembled. A new cutter head 110 can also be placed within the avoidance space of the tool-beating device, which then rotates in the reverse direction, generating an upward force that brings the new cutter head closer to the handle 120, thereby enabling the assembly of the new cutter head, thereby completing the disassembly of the old cutter head and the assembly of the new cutter head.

[0075] Refer to the attached Figure 5As shown, the guide rail assembly 400 is arranged on the razor placing rack 300 in the embodiment, and a cutter holder 410 for placing a new cutter head 110 is arranged on the guide rail assembly 400, the bottom of the cutter holder 410 is provided with a rack 420, the rack 420 is limited by a guide rail fixing block 430, and a cutter changing motor 440 is arranged below the rack 420, under the action of the cutter changing motor 440, the rack 420 drives the guide rail assembly 400 to move along the razor placing rack 300, the transportation of the new cutter head is realized, and when the new cutter head approaches the handle 120, the assembly is completed through magnetic attraction.

[0076] The above detailed description is only a specific description of the feasible embodiments of the present application, and is not used to limit the protection scope of the present application, and equivalent embodiments or changes made without departing from the spirit of the present application should be included in the protection scope of the present application.

[0077] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0078] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. Automatic razor blade changing system for handheld razors, characterized in that: include: a blade changing module, which applies a force to a blade head on the handheld shaver to remove the blade head from the handheld shaver after the handheld shaver reaches a set position; A razor placement rack, on which the handheld razor is placed upside down, and the handheld razor is moved to a set position; Among them, the tool changing module includes a tool changing body, a tool beating device fixed on the tool changing body, the tool beating device performs circular motion, and the action point of the tool head is located on the trajectory of the circular motion; the tool beating device includes two symmetrically arranged support arms, the support arms extend vertically to form a buckling arm, and the action point of the tool head is located in the area where the buckling arm and the support arm are connected.

2. The automatic blade changing system for shavers according to claim 1, characterized in that: The handheld shaver comprises a handle and a cutter head magnetically connected to the handle, and the cutter head is separated from the handle when a force is applied.

3. The automatic blade changing system for shavers according to claim 2, characterized in that: The razor placement rack includes a frame body and a handle clamping module fixed on the frame body. After the handle of the handheld razor is clamped in the handle clamping module, the handle forms an angle of 10°-30° with the horizontal plane.

4. The automatic blade changing system for shavers according to claim 3, characterized in that: The cutter head is closer to the cutter changing module than the handle, and the cutter changing module only applies force to the cutter head.

5. The automatic blade changing system for a shaver according to any one of claims 2 to 4, characterized in that: The tool changing module applies a downward force to the tool head, and the force is greater than the magnetic attraction of the tool head.

6. The automatic blade changing system for shavers according to claim 1, characterized in that: The two support arms form a U shape, and the cutter head is located in an avoidance area formed by the U shape.

7. The automatic blade changing system for shavers according to claim 1, characterized in that: The tool changing body drives the tool beating device to perform circular motion around the central axis of the tool changing body.

8. The automatic blade changing system for shavers according to claim 5, characterized in that: The magnetic attraction force is 3-8N.

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