Magnetic attraction device

Abstract

The utility model discloses a magnetic device which comprises a first shell, a second shell, a bottom cover, a magnetic assembly and a reset piece, the first shell is provided with a containing cavity with an opening in one end, and the first shell is provided with a through hole communicated with the containing cavity. The second housing is movably connected to the first housing and can cover the through hole. The magnetic attraction assembly is contained in the containing cavity and comprises a first magnetic attraction piece and a second magnetic attraction piece, the first magnetic attraction piece is installed in the first shell, and the second magnetic attraction piece is installed in the second shell. The second shell is configured to move relative to the first shell in the direction from the bottom cover to the first shell, so that the second magnetic attraction piece can be close to or away from the first magnetic attraction piece along with movement of the second shell, the distance between the first magnetic attraction piece and the magnetic attraction equipment can be conveniently changed, and the magnetic attraction equipment can be taken down very easily and effortlessly. And the reset piece can drive the second shell to reset, so that the use convenience of the magnetic attraction equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of bracket technology for electronic devices, and in particular to a magnetic attraction device. Background Technology

[0002] Existing magnetic phone holders use internal magnets to strongly attract the phone or the phone case, thus fixing and supporting the phone. To ensure good adhesion, the magnetic force of the phone holder is often very strong. As a result, when the user needs to remove the phone, a large force perpendicular to the surface of the holder needs to be applied to separate the two, which seriously affects the user experience. Utility Model Content

[0003] The main purpose of this invention is to provide a magnetic attraction device that can ensure that the magnetic attraction device has sufficient magnetic force to properly attract the equipment, while making the action of separating the equipment from the magnetic attraction device easier.

[0004] To achieve the above objectives, this utility model proposes a magnetic attraction device, comprising:

[0005] The first housing has a receiving cavity open at one end and a through hole communicating with the receiving cavity;

[0006] The second housing is movably connected to the first housing and can cover the through hole;

[0007] A bottom cover is connected to the first housing and covers the opening;

[0008] A magnetic suction assembly is accommodated in the receiving cavity. The magnetic suction assembly includes a first magnetic suction member and a second magnetic suction member. The first magnetic suction member is installed on the first housing, and the second magnetic suction member is installed on the second housing.

[0009] The first housing has a first surface on the side opposite to the bottom cover, and the second housing has a second surface on the side opposite to the bottom cover. Both the first surface and the second surface are adapted to contact the magnetic attraction device. The second housing is configured to move relative to the first housing in a direction from the bottom cover to the first housing, so that the second surface moves away from the first surface in the direction from the bottom cover to the first housing. The magnetic attraction device also includes a reset member, one end of which is connected to the second housing and configured to drive the second housing to move in a direction from the first housing to the bottom cover.

[0010] In some embodiments, a direction parallel to the direction from the bottom cover to the first housing is defined as a first direction, and a direction perpendicular to the first direction is defined as a second direction. The side of the first housing facing the bottom cover is provided with a first extension extending along the first direction. The side of the first magnetic member away from the bottom cover contacts the side of the first housing facing the bottom cover. Either side of the first magnetic member arranged opposite to each other along the second direction contacts either side of the first extension arranged opposite to each other along the second direction.

[0011] The second housing has a second extension extending along the first direction on the side facing the bottom cover. The side of the second magnetic member away from the bottom cover contacts the side of the first housing facing the bottom cover. Either side of the first magnetic member, which is arranged opposite to each other along the second direction, contacts either side of the first extension that is arranged opposite to each other along the second direction.

[0012] In some embodiments, a direction parallel to the direction from the bottom cover to the first housing is defined as a first direction, and a direction perpendicular to the first direction is defined as a second direction. The side of the second housing facing the bottom cover is provided with a first limiting member extending along the first direction.

[0013] The reset element is a spring, which is wound around the periphery of the first limiting element, and one end of the reset element along the first direction is connected to the second housing and the other end is connected to the bottom cover.

[0014] In some embodiments, the first limiting member has a cavity extending along the first direction, the cavity communicating with the receiving cavity, the reset member being disposed within the cavity, and one end of the reset member being connected to the second housing along the first direction and the other end being connected to the bottom cover.

[0015] In some embodiments, the magnetic attraction device further includes a bracket, which is installed in the receiving cavity and has a clearance hole communicating with the receiving cavity. The first limiting member passes through the clearance hole and is movable relative to the bracket along the first direction. One end of the first magnetic member along the first direction abuts against the side of the bracket away from the bottom cover, and the other end abuts against the side of the first housing facing the bottom cover. One end of the second magnetic member along the first direction contacts the side of the second housing facing the bottom cover, and the other end is detachably in contact with the side of the bracket away from the bottom cover.

[0016] In some embodiments, the bracket is provided with a first limiting portion located on the periphery of the clearance hole and extending along the first direction. The side of the first limiting member facing the bracket is provided with a second limiting portion extending along the second direction. The side of the second limiting portion away from the bottom cover is detachably in contact with the side of the first limiting portion facing the bottom cover.

[0017] In some embodiments, the bracket further includes a protrusion located at one end of the first limiting portion facing the bottom cover, and the protrusion is located at either end of the first limiting portion disposed opposite to each other along the second direction. The protrusion is configured to detachably contact the second limiting portion such that the second surface is inclined relative to the first surface.

[0018] or,

[0019] The first limiting portion includes a first portion and a second portion disposed opposite to each other along the second direction. The distance from the side of the first portion facing the bottom cover to the side of the bottom cover facing the first housing is less than the distance from the side of the second portion facing the bottom cover to the side of the bottom cover facing the first housing, so that when the second limiting portion moves in the direction from the bottom cover to the first housing, it contacts the first portion before the second portion.

[0020] In some embodiments, the bracket is provided with a supporting portion, which is connected to one end of the first limiting portion away from the bottom cover. The end of the supporting portion away from the first limiting portion extends toward the first limiting member and is spaced apart from the first limiting member. One end of the reset member along the first direction abuts against the side of the supporting portion facing the bottom cover, and the other end abuts against the side of the second limiting portion away from the bottom cover.

[0021] In some embodiments, the bracket is provided with a guide hole located around the clearance hole, and the second housing is provided with a guide extending along the first direction on the side facing the bottom cover, the guide being configured to be slidably inserted into the guide hole.

[0022] In some embodiments, the magnetic suction device further includes a second limiting member and a bracket. The second limiting member includes a main body extending along the first direction and a protrusion extending along the second direction. The first limiting member has a cavity extending along the first direction, the cavity communicating with the receiving cavity. The main body is inserted into the cavity, and the side of the protrusion away from the bottom cover abuts against the side of the first limiting member facing the bottom cover.

[0023] The bracket is installed in the receiving cavity and has a clearance hole communicating with the receiving cavity. The first limiting member passes through the clearance hole and can move relative to the bracket in the first direction. The bracket has a supporting part. One end of the supporting part away from the bottom cover extends in the second direction toward the first limiting member. One end of the reset member along the first direction abuts against the side of the supporting part facing the bottom cover, and the other end abuts against the side of the protrusion away from the bottom cover.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] In the technical solution of this utility model, the magnetic suction device includes a first housing, a second housing, a bottom cover, a magnetic suction assembly, and a resetting member. The first housing has a receiving cavity with one end open, and a through hole communicating with the receiving cavity is provided on the first housing. The second housing is movably connected to the first housing and can cover the through hole. The magnetic suction assembly is received in the receiving cavity and includes a first magnetic suction member and a second magnetic suction member. The first magnetic suction member is installed in the first housing, and the second magnetic suction member is installed in the second housing. The second housing is configured to move relative to the first housing in a direction from the bottom cover to the first housing, so that the second magnetic suction member can move closer to or away from the first magnetic suction member as the second housing moves, thereby facilitating the change of the distance between the first magnetic suction member and the magnetic suction device. During the removal of the magnetic suction device, the second housing moves away from the bottom cover along with the magnetic suction device. As a result, the distance between the magnetic suction device and the first surface of the first housing increases, and the attraction force of the first magnetic suction member on the magnetic suction device weakens. At this time, the magnetic suction device can be removed from the magnetic suction device only by overcoming the attraction force of the second magnetic suction member, making the removal of the magnetic suction device very easy and effortless. After the second surface separates from the magnetic attraction device, the second housing can be reset under the drive of the reset component, which improves the ease of use of the magnetic attraction device. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the magnetic attraction device in one embodiment of the present invention; wherein the first surface and the second surface are flush.

[0028] Figure 2 This is a schematic diagram of the magnetic attraction device in another embodiment of the present invention; wherein, the second surface is located on the side of the first surface away from the bottom cover;

[0029] Figure 3 This is an exploded view of the magnetic attraction device in one embodiment of the present invention;

[0030] Figure 4 This is a cross-sectional view of the magnetic suction device in one embodiment of the present invention; wherein the second surface is parallel to the first surface, and the second surface is located on the side of the first surface away from the bottom cover;

[0031] Figure 5 This is a cross-sectional view of the magnetic attraction device in another embodiment of the present invention; wherein the second surface is inclined relative to the first surface;

[0032] Figure 6 This is a first-view structural schematic diagram of the bracket in one embodiment of the present invention;

[0033] Figure 7 This is a structural schematic diagram of the bracket from a second perspective in one embodiment of the present invention.

[0034] Explanation of icon numbers:

[0035] Magnetic attraction device 100;

[0036] First housing 110; receiving cavity 111; through hole 112; first surface 113; first extension 114;

[0037] Second housing 120; second surface 121; second extension 122; guide 123; first limiting member 124; cavity 1241;

[0038] Bottom cover 130;

[0039] Magnetic suction assembly 140; first magnetic suction element 141; second magnetic suction element 142;

[0040] Reset component 150;

[0041] Bracket 160; clearance hole 161; first limiting part 162; first part 1621; second part 1622; supporting part 163; guide hole 164;

[0042] Second limiting member 170; main body 171; protrusion 172;

[0043] First direction X; second direction Y.

[0044] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0046] In view of this, please refer to Figures 1 to 7 This invention provides a magnetic attraction device 100, comprising a first housing 110, a second housing 120, a bottom cover 130, and a magnetic attraction assembly 140. The first housing 110 has a receiving cavity 111 open at one end, and a through hole 112 communicating with the receiving cavity 111. The second housing 120 is movably connected to the first housing 110, covering the through hole 112, so that the side of the first housing 110 facing away from the opening has a complete surface, thereby ensuring that the components within the receiving cavity 111 are not disturbed by external factors, and ensuring the stability of the magnetic attraction device adsorbed on this surface. The bottom cover 130 is connected to the first housing 110 and covers the opening. The magnetic attraction assembly 140 is housed within the receiving cavity 111, thus the bottom cover 130 provides effective protection for the magnetic attraction assembly 140, preventing it from being affected by the external environment.

[0047] Please see Figure 3 and Figure 4 The magnetic attraction assembly 140 includes a first magnetic element 141 and a second magnetic element 142. The first magnetic element 141 is installed inside a first housing 110, while the second magnetic element 142 is installed inside a second housing 120. The second housing 120 is configured to move relative to the first housing 110 in a direction from the bottom cover 130 towards the first housing 110, allowing the second magnetic element 142 to move closer to or further away from the first magnetic element 141 as the second housing 120 moves. This enables graded adjustment of the attraction force of the magnetic attraction device 100, allowing the magnetic device to be easily separated from the magnetic attraction device 100. Furthermore, since both the first magnetic element 141 and the second magnetic element 142 act on the surface of the magnetic device when it is attracted to the magnetic attraction device 100, the stability of the attraction is effectively ensured, avoiding the risk of accidental detachment.

[0048] Please see Figure 1 , Figure 2 and Figure 4Specifically, the first housing 110 has a first surface 113 on the side opposite to the bottom cover 130, and the second housing 120 has a second surface 121 on the side opposite to the bottom cover 130. Both the first surface 113 and the second surface 121 are suitable for contacting the magnetic device. That is, under the combined action of the first magnetic member 141 and the second magnetic member 142, the magnetic device can be tightly attached to the first surface 113 and the second surface 121. When it is necessary to separate the magnetic device, only a slight external force needs to be applied to the magnetic device to make the second housing 120 move relative to the first housing 110, thereby causing the second magnetic member 142 to move away from the first surface 113 with the movement of the second housing 120, thus weakening the magnetic force and realizing the separation of the magnetic device from the first surface 113. It should be noted that during the process of separating the magnetic device from the first surface 113, the second surface 121 always maintains contact with the magnetic device under the action of the second magnetic member 142. When an external force is continuously applied to the magnetic attraction device, and the second housing 120 moves to its endpoint, the magnetic attraction device can separate from the second surface 121 under the action of the external force. At this point, the magnetic attraction device is completely detached from the magnetic attraction device 100. This application ensures the stability and convenience of the magnetic attraction device during the adsorption and separation process, greatly improving the user experience.

[0049] Please see Figure 3 and Figure 4 The magnetic attraction device 100 also includes a reset member 150, one end of which is connected to the second housing 120 and configured to drive the second housing 120 to move in the direction from the first housing 110 to the bottom cover 130. This allows the second housing 120 to automatically reset after being separated from the magnetic attraction device, ensuring that the magnetic attraction device 100 returns to its initial state for easy use next time. The reset member 150 can adopt various structures that can drive the second housing 120 to reset, including but not limited to springs, torsion springs, and elastic sheets.

[0050] It should be noted that a connection structure can be provided on the side of the bottom cover 130 opposite to the first housing 110. This connection structure can securely connect the magnetic device 100 to the external device, further enhancing the overall structural stability and ensuring that the magnetic device 100 can maintain efficient operation in various usage scenarios. External devices include, but are not limited to, tablets, smartphones, desktops, and other fixed surfaces; similarly, magnetic devices that can be magnetically connected to the first surface 113 of the magnetic device 100 include, but are not limited to, tablets, smartphones, desktops, and other fixed surfaces. When the external device connected to the bottom cover 130 is a desktop or other fixed surface, the magnetic device that can be connected to the first surface 113 can be an electronic device such as a tablet or smartphone.

[0051] Compared to related technologies that rely on a single magnetic element to provide adsorption force, this application employs a design where the first magnetic element 141 and the second magnetic element 142 work synergistically, significantly improving the stability and controllability of the adsorption force. Furthermore, the design allowing the first magnetic element 141 to move relative to the first mounting surface along the first direction X ensures efficient and convenient installation and removal of the first device, effectively preventing accidental drops and improving the ease of removal. Moreover, compared to the fixed adsorption method in related technologies, this application further optimizes the removal process by gradually eliminating the adsorption force through the movement of the first magnetic element 141 relative to the first mounting surface, reducing operational difficulty and enhancing the user experience. Additionally, the reset element 150 in this application allows the second housing 120 to automatically reset after separation, ensuring the magnetic device 100 is in a standby state, simplifying the operation process and extending the device's lifespan.

[0052] In some embodiments, both the first housing 110 and the second housing 120 may be made of materials capable of conducting magnetic forces, including but not limited to stainless steel, iron, and other metallic materials. Please refer to... Figure 4 For ease of description, a first direction X is defined as parallel to the direction from the bottom cover 130 to the first housing 110, and a second direction Y is defined as perpendicular to the first direction X. A first extension 114 extending along the first direction X is provided on the side of the first housing 110 facing the bottom cover 130. The side of the first magnetic member 141 facing away from the bottom cover 130 contacts the side of the first housing 110 facing the bottom cover 130. Either side of the first magnetic member 141, positioned opposite each other along the second direction Y, contacts either side of the first extension 114, positioned opposite each other along the second direction Y. The provision of the first extension 114 increases the contact area between the first magnetic member 141 and the first housing 110, enhancing the uniform distribution of the magnetic force and improving adsorption stability. Simultaneously, the design of the first extension 114 also increases the structural strength of the first housing 110, ensuring it is not easily deformed during frequent use and extending the overall service life of the device.

[0053] The material of the first extension 114 can be the same as that of the first housing 110. In other embodiments, the material used for the first extension 114 may be different from that of the first housing 110, and the material used for the first extension 114 has the property of blocking magnetic force transmission. Thus, the first extension 114 can be disposed between the first magnetic member 141 and the second magnetic member 142 to effectively block magnetic interference and ensure the accurate adsorption of the magnetic device 100.

[0054] The second housing 120 has a second extension 122 extending along the first direction X on the side facing the bottom cover 130. The side of the second magnetic member 142 away from the bottom cover 130 contacts the side of the first housing 110 facing the bottom cover 130. Either side of the first magnetic member 141, positioned opposite each other along the second direction Y, contacts either side of the first extension 114, positioned opposite each other along the second direction Y. The design of the second extension 122 not only enhances the connection stability between the second magnetic member 142 and the second housing 120, but also improves the structural rigidity of the second housing 120, preventing deformation during frequent use and further enhancing the overall durability of the device. To improve the installation stability of the second magnetic member 142, the material used for the second extension 122 is the same as that of the second housing 120, allowing the second magnetic member 142 to be firmly attached to the second housing 120 under its own magnetic force, ensuring no displacement during use and further improving the overall reliability and stability of the device.

[0055] In some embodiments, the material used for the second extension 122 may be different from the material of the second housing 120. Specifically, the second extension 122 may have the characteristic of blocking magnetic force transmission. Thus, the second extension 122 may be disposed between the second magnetic member 142 and the first magnetic member 141 to effectively block magnetic interference and prevent the first magnetic member 141 from affecting the movement of the second magnetic member 142.

[0056] Please see Figure 3 and Figure 4 To limit the movement of the second housing 120 relative to the first housing 110 along the first direction X, a first limiting member 124 extending along the first direction X is provided on the side of the second housing 120 facing the bottom cover 130. The reset member 150 can be a spring structure, which is wound around the periphery of the first limiting member 124. One end of the reset member 150 along the first direction X is connected to the second housing 120, and the other end is connected to the bottom cover 130. When the second housing 120 is subjected to an external force and moves away from the first housing 110, the spring is stretched or compressed. Once the external force disappears, the elastic restoring force of the spring will drive the second housing 120 back to its original position, ensuring precise movement. The cooperation between the first limiting member 124 and the reset member 150 not only limits the movement range of the second housing 120 but also provides a stable reset function, further improving the ease of operation and service life of the device.

[0057] The reset member 150 is disposed around the periphery of the first limiting member 124, thus the first limiting member 124 can effectively guide the extension and contraction of the spring, preventing the spring from deviating or jamming during movement, and ensuring smooth and accurate reset action. In some embodiments, the outer contour of the first limiting member 124 is cylindrical, so the spring can be sleeved on the outer periphery of the first limiting member 124 to enhance the constraint force of the first limiting member 124 on the spring, ensuring that the spring always stays on the predetermined trajectory during stretching or compression, avoiding reset failure caused by spring deviation, and further improving the stability and reliability of the device. In other embodiments, the receiving cavity 111 is provided with multiple springs, which are evenly distributed around the outer periphery of the first limiting member 124 and work together to enhance the uniformity and stability of the reset force, ensuring that the second housing 120 can still accurately reset when subjected to forces in multiple directions, further improving the anti-interference capability and service life of the device.

[0058] Please see Figure 4 In some embodiments, the first limiting member 124 has a cavity 1241 extending along a first direction X, which connects to the receiving cavity 111. A reset member 150 can be disposed within this cavity 1241, with one end of the reset member 150 connected to the second housing 120 and the other end connected to the bottom cover 130 along the first direction X. Thus, the cavity 1241 not only provides additional space for the first limiting member 124, preventing other components from interfering with its reset action on the second housing 120, improving the overall compactness and integration of the device, but also allows the reset member 150 to move more smoothly within the cavity 1241, reducing frictional resistance and improving reset efficiency. It also allows other components (such as wires or sensors) to be wired or arranged through the cavity 1241.

[0059] Please see Figures 3 to 7 The magnetic attraction device 100 also includes a bracket 160, which is installed in the receiving cavity 111 of the first housing 110 and has a clearance hole 161 communicating with the receiving cavity 111. The first limiting member 124 passes through the clearance hole 161 and can move relative to the bracket 160 along the first direction X, so that the second housing 120 can move along the first direction X under the action of external force, while ensuring that it can accurately return to the initial position when reset.

[0060] To enhance structural stability and reliability, one end of the first magnetic chuck 141 abuts against the side of the bracket 160 facing away from the bottom cover 130, while the other end abuts against the side of the first housing 110 facing the bottom cover 130. Thus, the bracket 160 provides additional support for the first magnetic chuck 141, preventing displacement during movement. One end of the second magnetic chuck 142 along the first direction X is connected to the side of the second housing 120 facing the bottom cover 130, while the other end is detachably in contact with the side of the bracket 160 facing away from the bottom cover 130. This allows the second magnetic chuck 142 to move along the first direction X with the second housing 120. During the resetting process of the second housing 120, the bracket 160 effectively limits the second magnetic chuck 142, ensuring its accurate return to the predetermined position, making the second surface 121 flush with the first surface 113, further enhancing the overall stability and resetting accuracy of the magnetic chuck device 100.

[0061] In some embodiments, the bracket 160 is made of a material capable of conducting magnetic force, and the attraction force of the bracket 160 on the second magnetic 142 is less than the attraction force of the second housing 120 on the second magnetic 142. This ensures that as the second housing 120 moves away from the bracket 160, the second magnetic 142 can always closely follow the second housing 120 and separate from the bracket 160. During the reset process of the second housing 120, the reset member 150 first applies a reset force to the second housing 120, and then the bracket 160 gradually attracts the second magnetic 142 under the magnetic attraction force of the second magnetic 142, ensuring its smooth return to its original position and avoiding shaking and deviation during the reset process. At the same time, it ensures the overall stability of the device after the second housing 120 is reset, preventing the second housing 120 from shifting relative to the first housing 110 under external vibration or impact, thereby improving the overall performance of the device and the user experience.

[0062] Please see Figure 3 , Figure 6 and Figure 7In some embodiments, to further prevent the second housing 120 from moving excessively and detaching from the receiving cavity 111, a first limiting portion 162 is provided on the periphery of the clearance hole 161, extending along a first direction X. A second limiting portion extending along a second direction Y is provided on the side of the first limiting member 124 facing the bracket 160. During the removal of the magnetic device, the magnetic device moves away from the bottom cover 130, and the second housing 120 moves with the magnetic device under the action of the second magnetic member 142. The magnetic device separates from the first surface 113, and the distance between them gradually increases, while the attraction force of the second magnetic member 142 on the magnetic device gradually weakens. When the second housing 120 moves to a preset position with the magnetic device, the end of the first limiting portion 162 facing the bottom cover 130 abuts against the side of the second limiting portion away from the bottom cover 130, restricting further movement of the second housing 120 and preventing it from excessively detaching from the receiving cavity 111. At the same time, a resistance opposite to the direction of movement of the magnetic device is provided, so that the magnetic device can separate from the second surface 121 while weakening or even eliminating the attraction force of the first magnetic element 141, thereby realizing the easy release function of the magnetic device.

[0063] During this process, the first limiting member 124 and the second limiting part work together to ensure that the second housing 120 remains within a predetermined range during movement, further improving the safety and reliability of the device. When the second housing 120 is reset by the resetting member 150, the contact between the first limiting part 162 and the second limiting part gradually disengages, and the second housing 120 smoothly returns to its original position under the action of the resetting force, ensuring the smoothness and accuracy of the resetting process.

[0064] To further enhance the detachment effect of the magnetic suction device 100 on the magnetic device, in some embodiments, the bracket 160 is also provided with a protrusion. This protrusion is located at the end of the first limiting portion 162 facing the bottom cover 130, and can be located at either end of the two opposite ends of the first limiting portion 162 along the second direction Y. Thus, when the protrusion contacts the second limiting portion, the second surface 121 can be tilted relative to the first surface 113, thereby further weakening the attraction force of the first magnetic suction member 141 on the magnetic device, making it easier for the magnetic device to separate from the second surface 121.

[0065] Specifically, as the second housing 120 moves away from the bottom cover 130 along with the magnetic device, the protrusion contacts the second limiting part before the first limiting part 162. As the second housing 120 continues to move, the second surface 121 gradually tilts relative to the first surface 113 until the first limiting part 162 abuts against the second limiting part. At this point, the maximum distance between the second surface 121 and the first surface 113 further increases, and the attraction force of the second magnetic member 142 on the magnetic device is further weakened. The magnetic device can detach from the second surface 121 with less pulling force, making removal easier and less strenuous. It should be noted that compared to applying a pulling force parallel to the magnetic field lines to detach the magnetic device, applying a pulling force perpendicular to or inclined to the magnetic field lines effectively reduces magnetic resistance, thus achieving more convenient removal of the magnetic device.

[0066] Understandably, the second limiting part can only contact the protrusion after moving a certain distance away from the bottom cover 130 along with the second housing 120. At this time, the second magnetic suction member 142 moves to the outside of the receiving cavity 111 through the through hole 112 along with the movement of the second housing 120. Therefore, when the second surface 121 tilts relative to the first surface 113 under the action of the protrusion, the second magnetic suction member 142 will not hinder the tilting of the second surface 121, ensuring a smooth tilting process. When the second housing 120 is reset under the action of the reset member 150, the second surface 121 is flush with the first surface 113. At this time, the second housing 120 can effectively seal the through hole 112, preventing dust and foreign objects from entering the receiving cavity 111, ensuring the cleanliness and stability of the internal structure, and extending the service life of the device. In this way, not only can the tilting effect of the second surface 121 be ensured, but the aesthetics and durability of the magnetic suction device 100 can also be improved, further optimizing the user experience.

[0067] Please see Figure 5In some embodiments, to achieve the effect of the second surface 121 tilting relative to the first surface 113, the first limiting part 162 includes a first portion 1621 and a second portion 1622 disposed opposite to each other along the second direction Y. The distance from the side of the first portion 1621 facing the bottom cover 130 to the side of the bottom cover 130 facing the first housing 110 is less than the distance from the side of the second portion 1622 facing the bottom cover 130 to the side of the bottom cover 130 facing the first housing 110. That is, along the first direction X, the size of the first portion 1621 is larger than the size of the second portion 1622. When the second limiting part moves away from the bottom cover 130 along with the second housing 120, the second limiting part first contacts the first portion 1621, and gradually tilts the second surface 121 during continuous movement until the second limiting part contacts the second portion 1622. This reduces the design and manufacturing difficulty of the first limiting part 162 while ensuring the smoothness and precision of the tilting process of the second surface 121, further improving the convenience and stability of the magnetic device's removal operation.

[0068] Please see Figure 4 , Figure 6 and Figure 7 To improve the installation reliability of the reset member 150, in some embodiments, the bracket 160 is further provided with a supporting portion 163. The supporting portion 163 is connected to the end of the first limiting portion 162 away from the bottom cover 130, and the end of the supporting portion 163 away from the first limiting portion 162 extends toward the first limiting member 124 and is spaced apart from the first limiting member 124. One end of the reset member 150 (spring) abuts against the side of the supporting portion 163 facing the bottom cover 130 along the first direction X, and the other end abuts against the side of the second limiting portion away from the bottom cover 130. Specifically, the supporting part 163, the first limiting part 162, the second limiting part, and the second limiting member 170 together define the mounting cavity, and the reset member 150 can be installed in the mounting cavity to avoid interference from other components in the receiving cavity 111 on the movement of the reset member 150. At the same time, it reduces the installation difficulty of the reset member 150 and ensures that it maintains a stable working state during the use of the equipment, further improving the reliability and durability of the overall structure.

[0069] To improve the stability of the movement of the second housing 120, in some embodiments, please refer to... Figure 3The bracket 160 is also provided with guide holes 164, which can be one or multiple. The following explanation uses multiple guide holes 164 as an example, where the multiple guide holes 164 are evenly distributed around the periphery of the avoidance hole 161. The second housing 120 has a guide member 123 extending along the first direction X on the side facing the bottom cover 130. The position and number of guide members 123 can correspond one-to-one with the guide holes 164. The guide member 123 is configured to slidably insert into the guide hole 164, ensuring that the second housing 120 maintains a stable trajectory during movement, avoiding deviation and shaking, ensuring precise docking and smooth separation of the magnetic attraction device 100, further improving user experience and equipment reliability.

[0070] Please see Figure 3 and Figure 4To improve the ease of assembly of the magnetic attraction device 100, in some embodiments, the magnetic attraction device 100 further includes a second limiting member 170 and a bracket 160. The second limiting member 170 includes a main body portion 171 extending along a first direction X and a protrusion 172 extending along a second direction Y. The protrusion 172 is connected to the end of the main body portion 171 near the bottom cover 130 along the first direction X. The first limiting member 124 has a cavity 1241 extending along the first direction X and communicating with the receiving cavity 111. The main body portion 171 is inserted into the cavity 1241 and connected to the first limiting member 124, so that the second limiting member 170 can move synchronously with the second housing 120. The side of the protrusion 172 facing away from the bottom cover 130 can abut against the side of the first limiting member 124 facing the bottom cover 130. The bracket 160 is installed in the receiving cavity 111 and has a clearance hole 161 communicating with the receiving cavity 111. The first limiting member 124 passes through the clearance hole 161 and can move relative to the bracket 160 along the first direction X. The bracket 160 has a supporting part 163. One end of the supporting part 163 away from the bottom cover 130 extends along the second direction Y toward the direction close to the first limiting member 124. One end of the resetting member 150 along the first direction X abuts against the side of the supporting part 163 facing the bottom cover 130, and the other end abuts against the side of the protrusion 172 away from the bottom cover 130. The second limiting member 170 facilitates the installation of the second housing 120 and the bracket 160. Specifically, the first limiting member 124 of the second housing 120 can be inserted into the clearance hole 161 in a direction away from the first housing 110. Then, the reset member 150 is fitted onto the outer periphery of the first limiting member 124, with the end of the reset member 150 near the first housing 110 contacting the abutment portion 163. Finally, the main body 171 of the second limiting member 170 is inserted into the cavity 1241 and connected to the first limiting member 124, with its protrusion 172 abutting against the end of the first limiting member 124 facing the bottom cover 130. At the same time, the end of the reset member 150 away from the first housing 110 is connected to the side of the protrusion 172 facing away from the bottom cover 130. This not only ensures the stability of the installation environment of the reset member 150 but also reduces the assembly difficulty of the second housing 120 and the bracket 160.

[0071] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0072] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or," "and / or," or "and / or" throughout the text implies three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where A and B are simultaneously satisfied. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0073] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A magnetic attraction device, characterized in that, include: The first housing has a receiving cavity open at one end and a through hole communicating with the receiving cavity; The second housing is movably connected to the first housing and can cover the through hole; A bottom cover is connected to the first housing and covers the opening; A magnetic suction assembly is accommodated in the receiving cavity. The magnetic suction assembly includes a first magnetic suction member and a second magnetic suction member. The first magnetic suction member is installed on the first housing, and the second magnetic suction member is installed on the second housing. The first housing has a first surface on the side opposite to the bottom cover, and the second housing has a second surface on the side opposite to the bottom cover. Both the first surface and the second surface are adapted to contact the magnetic attraction device. The second housing is configured to move relative to the first housing in a direction from the bottom cover to the first housing, so that the second surface moves away from the first surface in the direction from the bottom cover to the first housing. The magnetic attraction device also includes a reset member, one end of which is connected to the second housing and configured to drive the second housing to move in a direction from the first housing to the bottom cover.

2. The magnetic attraction device as described in claim 1, characterized in that, The direction parallel to the bottom cover pointing to the first housing is defined as the first direction, and the direction perpendicular to the first direction is defined as the second direction. The side of the first housing facing the bottom cover is provided with a first extension extending along the first direction. The side of the first magnetic member away from the bottom cover contacts the side of the first housing facing the bottom cover. Either side of the first magnetic member arranged opposite to each other along the second direction contacts either side of the first extension arranged opposite to each other along the second direction. The second housing has a second extension extending along the first direction on the side facing the bottom cover. The side of the second magnetic member away from the bottom cover contacts the side of the first housing facing the bottom cover. Either side of the first magnetic member, which is arranged opposite to each other along the second direction, contacts either side of the first extension that is arranged opposite to each other along the second direction.

3. The magnetic attraction device as described in claim 1, characterized in that, A first direction is defined as the direction parallel to the direction from the bottom cover to the first housing, and a second direction is defined as the direction perpendicular to the first direction. The second housing is provided with a first limiting member extending along the first direction on the side facing the bottom cover. The reset element is a spring, which is wound around the periphery of the first limiting element, and one end of the reset element along the first direction is connected to the second housing and the other end is connected to the bottom cover.

4. The magnetic attraction device as described in claim 3, characterized in that, The first limiting member has a cavity extending along the first direction, the cavity communicating with the receiving cavity, the reset member being disposed in the cavity, and one end of the reset member along the first direction being connected to the second housing and the other end being connected to the bottom cover.

5. The magnetic attraction device as described in claim 3, characterized in that, The magnetic attraction device further includes a bracket, which is installed in the receiving cavity and has a clearance hole communicating with the receiving cavity. The first limiting member passes through the clearance hole and can move relative to the bracket along the first direction. One end of the first magnetic member along the first direction abuts against the side of the bracket away from the bottom cover, and the other end abuts against the side of the first housing facing the bottom cover. One end of the second magnetic member along the first direction contacts the side of the second housing facing the bottom cover, and the other end can be detachably contacted against the side of the bracket away from the bottom cover.

6. The magnetic attraction device as described in claim 5, characterized in that, The bracket is provided with a first limiting part, which is located on the periphery of the clearance hole and extends along the first direction. The side of the first limiting part facing the bracket is provided with a second limiting part extending along the second direction. The side of the second limiting part away from the bottom cover is detachably in contact with the side of the first limiting part facing the bottom cover.

7. The magnetic attraction device as described in claim 6, characterized in that, The bracket is also provided with a protrusion located at one end of the first limiting portion facing the bottom cover, and the protrusion is located at either end of the two ends of the first limiting portion that are disposed opposite each other along the second direction. The protrusion is configured to detachably contact the second limiting portion such that the second surface is inclined relative to the first surface. or, The first limiting portion includes a first portion and a second portion disposed opposite to each other along the second direction. The distance from the side of the first portion facing the bottom cover to the side of the bottom cover facing the first housing is less than the distance from the side of the second portion facing the bottom cover to the side of the bottom cover facing the first housing, so that when the second limiting portion moves in the direction from the bottom cover to the first housing, it contacts the first portion before the second portion.

8. The magnetic attraction device as described in claim 6, characterized in that, The bracket is provided with a supporting part, which is connected to the end of the first limiting part away from the bottom cover. The end of the supporting part away from the first limiting part extends toward the first limiting member and is spaced apart from the first limiting member. One end of the reset member along the first direction abuts against the side of the supporting part facing the bottom cover, and the other end abuts against the side of the second limiting part away from the bottom cover.

9. The magnetic attraction device as described in claim 5, characterized in that, The bracket is provided with a guide hole located around the clearance hole. The second housing is provided with a guide member extending along the first direction on the side facing the bottom cover. The guide member is configured to be slidably inserted into the guide hole.

10. The magnetic attraction device as described in claim 3, characterized in that, The magnetic attraction device further includes a second limiting member and a bracket. The second limiting member includes a main body extending along the first direction and a protrusion extending along the second direction. The first limiting member has a cavity extending along the first direction, the cavity communicating with the receiving cavity. The main body is inserted into the cavity, and the side of the protrusion away from the bottom cover abuts against the side of the first limiting member facing the bottom cover. The bracket is installed in the receiving cavity and has a clearance hole communicating with the receiving cavity. The first limiting member passes through the clearance hole and can move relative to the bracket in the first direction. The bracket has a supporting part. One end of the supporting part away from the bottom cover extends in the second direction toward the first limiting member. One end of the reset member along the first direction abuts against the side of the supporting part facing the bottom cover, and the other end abuts against the side of the protrusion away from the bottom cover.

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