Magnetic drive base device and rhythm furniture

Abstract

The utility model provides a magnetic drive base device which comprises a fixing frame, a rhythm frame, an elastic connecting piece and a magnetic drive mechanism, the magnetic drive mechanism comprises a coil assembly and a magnetic drive assembly, the coil assembly is arranged to switch magnetic poles at a preset frequency, and the magnetic drive assembly reciprocates in a variable magnetic field of the coil assembly; wherein the magnetomotive assembly comprises a permanent magnet, a channel hole is formed in the middle of the permanent magnet, a fixing rod is arranged in the channel hole in a penetrating mode, the two ends of the fixing rod are relatively fixed to the fixing frame, and the coil assembly is fixed to the outer side of the fixing rod in a sleeving mode and coaxially arranged in the channel hole. A channel hole is formed in the center of the permanent magnet and used for containing the coil assembly, and collision with the coil assembly in the axial direction is eradicated. In addition, the permanent magnet always falls into an area with a strong magnetic field of the coil assembly in the reciprocating motion process, so that the borne magnetic force is relatively balanced, the full-stroke power of the magnetomotive assembly is sufficient, and smooth operation of the rhythm frame is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of household articles, and more particularly to a magnetic drive base device and a rhythmic furniture. Background Art

[0002] To meet the diverse needs of people, household products have gradually derived a variety of additional functions. Among them, rhythmic furniture can assist users in full-body relaxation through the reciprocating movement of the chassis within a predetermined stroke at a certain frequency. At the same time, it also has the effects of promoting digestion, burning fat and losing weight, which can effectively improve the quality of users' lives and has gradually become an essential leisure item in people's lives.

[0003] The main functional component of traditional rhythmic furniture is the chassis, which includes a first frame body, a second frame body, and a drive mechanism for driving the first frame body to move relative to the second frame body. The drive mechanism usually uses a magnetic drive method. In the related art, the patent with the publication number CN219148428U discloses a new vibration chassis structure of a massage chair. Specifically, the drive mechanism includes a coil and a magnet. The magnet is disposed on one side of the coil. By switching the direction of the current, the magnetic pole of the coil is changed, and then the attractive and repulsive forces between the coil and the magnet are alternately generated, thereby driving the first frame body to perform a reciprocating movement. However, the inventor found in the specific implementation process that when the magnet and the coil are opposite in the same pole and repel each other, the magnet moves away from the coil, and as the magnet gradually moves away from the coil, the repulsive force of the coil on the magnet becomes weaker and weaker, resulting in insufficient magnet power and limited single movement stroke. On the contrary, the magnet will be attracted too close to the coil or even collide with each other, which will not only accelerate the damage of the magnet or the coil, but also cause obvious jamming in the operation of the chassis and poor user experience. Summary of the Utility Model

[0004] To solve the above technical problems, the embodiments of the present application provide a magnetic drive base device and a rhythmic furniture, in which the magnetic drive mechanism of the base device and the rhythmic furniture outputs sufficient power and avoids collision accidents at the same time.

[0005] The first aspect of the present application provides a magnetic drive base device, including:

[0006] A fixed frame;

[0007] A rhythmic frame, which is arranged to be able to reciprocate relative to the fixed frame; and

[0008] A magnetic drive mechanism, including a coil assembly fixedly relative to the fixed frame and a magnetic moving assembly fixedly relative to the rhythmic frame. The coil assembly is arranged to switch magnetic poles at a predetermined frequency, and the magnetic moving assembly is alternately driven by two opposite magnetic forces in the changing magnetic field of the coil assembly to drive the rhythmic frame to reciprocate relative to the fixed frame;

[0009] Among them, the magnetic driving component includes a permanent magnet with a channel hole formed in the middle, and a fixing rod is inserted into the channel hole and fixedly connected to the fixing frame at both ends. The coil assembly is sleeved and fixed on the outer side of the fixing rod and coaxially arranged in the channel hole.

[0010] The magnetic drive base device according to the first aspect of the embodiments of the present application has at least the following beneficial effects:

[0011] By providing a channel hole at the center of the permanent magnet to accommodate the coil assembly, the coil assembly is fixed in the channel hole by a fixing rod inserted into the channel hole. When the permanent magnet reciprocates, the coil assembly can be correspondingly accommodated in the channel hole, thus preventing collision with the coil assembly in the axial direction. In addition, both ends of the fixing rod are fixedly connected to the fixing frame, and the fixing effect of the coil assembly in the radial direction is good, preventing the coil assembly from colliding with the inner wall of the channel hole in the radial direction; on the other hand, during the reciprocating movement of the permanent magnet, it always falls into the area with a relatively strong magnetic field of the coil assembly, so the magnetic force received is relatively balanced, and the magnetic driving component has sufficient power throughout the stroke, ensuring the smooth operation of the rhythm frame.

[0012] In a possible implementation manner, one permanent magnet is provided, and the coil assembly is axially offset from the center of the permanent magnet in the channel hole. By axially offsetting the coil assembly from the center of a single permanent magnet, the permanent magnet can reciprocate in the area with a relatively stronger magnetic field intensity of the coil assembly, receiving a greater magnetic force and having more sufficient operating power.

[0013] In a possible implementation manner, two permanent magnets are provided, and the two permanent magnets are connected by docking one end with the same magnetic pole. The channel hole penetrates and communicates with the two permanent magnets. By connecting the two permanent magnets by docking one end with the same magnetic pole to form a magnetic driving component, under the action of the magnetic field of the coil assembly, the magnetic forces received by each permanent magnet in the magnetic field of the coil assembly are in the same direction and can be superimposed, so the magnetic driving component can obtain greater power.

[0014] In a possible implementation manner, the length of the coil assembly in its axial direction is greater than or equal to the length of the permanent magnet. It can provide a magnetic field environment with greater intensity, increase the power obtained by the magnetic driving component, and improve the upper limit of the reciprocating movement stroke of the rhythm frame.

[0015] In a possible implementation manner, the length of the coil assembly in its axial direction is less than the length of the permanent magnet. It is convenient for the manufacturing and assembly of the coil assembly and reduces the production cost.

[0016] In a possible implementation, the magnetic drive assembly further includes a sleeve for assembling and fixing two of the permanent magnets. The sleeve includes an installation cylinder with an inner hole diameter adapted to the permanent magnets and fastening rings that fix the permanent magnets by abutting against the corresponding ends of the permanent magnets from both ends of the installation cylinder. Fixing two permanent magnets through the sleeve has a simple structure and firm effect.

[0017] In a possible implementation, an iron core is further provided at the center of the coil assembly, and the middle section of the fixing rod is fixedly disposed through the iron core and both ends are fixed to the fixing frame. Providing the iron core can further enhance the magnetic field intensity of the coil assembly.

[0018] In a possible implementation, the fixing frame includes:

[0019] A first main frame, in which several first keels are provided;

[0020] A support frame, which includes two support plates arranged in parallel at a predetermined distance. The bottoms of the support plates are fixed to the corresponding first keels; and

[0021] A footrest, fixed to the bottom of the main frame, with a hemispherical support portion formed at the end;

[0022] Wherein, fixing holes are formed in each of the support plates, both ends of the fixing rod are respectively disposed through the fixing holes, and a first locking member is further provided to lock the fixing rod from the outer end of the support plate.

[0023] By providing a support frame on the fixing frame to fixedly install the fixing rod, and then fixing the entire coil assembly, the coil assembly is prevented from shifting in the radial direction, ensuring the structural stability of the base device.

[0024] In a possible implementation, the rhythm frame includes:

[0025] A second main frame, in which several second keels are provided; and

[0026] Adapter plates, two of which are provided and arranged in parallel at a predetermined distance. The tops of the adapter plates are fixed to the corresponding second keels;

[0027] Wherein, avoiding holes corresponding to the coil assembly are formed in each of the adapter plates, the peripheries of the avoiding holes abut against the outer end faces of the fastening rings, and a second locking member is further provided to lock the fastening rings from the outer ends of the adapter plates.

[0028] By providing an adapter plate on the rhythm stand for installing and fixing the magnetic drive assembly, a clearance hole is provided in the adapter plate to prevent interference between the adapter plate and the coil assembly during the reciprocating movement of the magnetic drive assembly, which affects the smoothness of the swing of the rhythm stand. At the same time, the periphery of the clearance hole tightly abuts against the outer end face of the fastening ring to fix the installation positions of the two permanent magnets.

[0029] In a second aspect of the present application, a rhythm furniture is provided. By adopting the magnetic drive base device and the furniture body described in any one of the above, the furniture body is installed on the rhythm stand to achieve the rhythm effect of carrying the user for reciprocating movement, with a smooth swinging process, no bumping or jamming, and sufficient power even after long-term operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0031] Figure 1 It is an overall three-dimensional structure schematic diagram of an optional embodiment of the present application.

[0032] Figure 2 It is an exploded structure schematic diagram after splitting the rhythm stand and the fixed stand of an optional embodiment of the present application.

[0033] Figure 3 It is an exploded structure schematic diagram of the split state of the magnetic drive mechanism of an optional embodiment of the present application.

[0034] Figure 4 is Figure 1 A cross-sectional schematic diagram longitudinally cut along the central axis of the channel hole.

[0035] Figure 5 It is a cross-sectional schematic diagram longitudinally cut along the central axis of the channel hole of another optional embodiment of the present application.

[0036] Figure 6 It is a cross-sectional schematic diagram longitudinally cut along the central axis of the channel hole of still another optional embodiment of the present application.

[0037] Reference numerals: fixing frame - 1, rhythm frame - 2, connecting member - 3, magnetic drive mechanism - 4, coil assembly - 41, magnetic moving assembly - 43, channel hole - 4301, permanent magnet - 430, fixing rod - 410, sleeve - 432, mounting cylinder - 4321, fastening ring - 4323, iron core - 412, perforation 414, first main frame - 10, first keel - 101, support frame - 12, support plate - 121, foot support - 14, support portion - 141, fixing hole - 1210, first locking member - 16, second main frame - 20, second keel - 201, adapter plate - 22, avoidance hole - 221, second locking member - 26. Detailed implementation manners

[0038] The embodiments of the present implementation manner will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present implementation manner, and should not be construed as a limitation to the present implementation manner.

[0039] In the description of the present implementation manner, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present implementation manner and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present implementation manner.

[0040] In the description of the present implementation manner, the meaning of several is one or more, the meaning of multiple is two or more, and understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number. If the first and second are described only for the purpose of distinguishing technical features, they should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0041] In the description of the present implementation manner, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present implementation manner in combination with the specific content of the technical solution.

[0042] The magnet includes a hard magnet and a soft magnet. The permanent magnet 430 in this application is a hard magnet, and the coil assembly 41 is a kind of soft magnet. The coil assembly 41 usually includes an insulating tube and wires that are wound around the insulating tube one by one and are electrically insulated from each other. After the coil assembly 41 is energized, a magnetic field will be generated, and the two ends of the coil assembly 41 will form a south pole and a north pole. The distribution law of the magnetic field intensity is that the closer to the two ends of the coil assembly 41, the greater the magnetic field intensity. At this time, the permanent magnet 430 located in the magnetic field of the coil assembly 41 will be subjected to a magnetic force and move in one direction under the drive of the magnetic force. When the current direction of the coil assembly 41 is switched, the magnetic pole direction of the coil assembly 41 will be reversed. At this time, the permanent magnet 430 will be subjected to a magnetic force opposite to the current movement direction. After being subjected to the force, the permanent magnet 430 stops its current movement trend and immediately moves in the opposite direction. By reasonably controlling the switching frequency of the current direction, the reciprocating movement of the magnetic drive assembly 43 can be realized.

[0043] See Figure 1 and Figure 2 , Figure 1 shows a three-dimensional structure of a magnetic drive base device of this application; Figure 2 For Figure 1 The structure schematic diagram after splitting the device. In an embodiment of this application, the magnetic drive base device includes a fixed frame 1, a rhythm frame 2, and a magnetic drive mechanism 4 that drives the rhythm frame 2 to reciprocate relative to the fixed frame 1. The coil assembly 41 in the magnetic drive mechanism 4 is relatively fixed to the fixed frame 1, and the magnetic drive assembly 43 is relatively fixed to the rhythm frame 2. The coil assembly 41 is set to reverse the magnetic poles at a predetermined frequency. The magnetic drive assembly 43 is alternately driven by two magnetic forces in opposite directions in the changing magnetic field of the coil assembly 41 to drive the rhythm frame 2 to reciprocate relative to the fixed frame 1.

[0044] Furthermore, the magnetic drive assembly 43 includes a permanent magnet 430 with a channel hole 4301 opened in the middle. Another fixed rod 410 is inserted into the channel hole 4301 and is relatively fixed to the fixed frame 1 at both ends. The coil assembly 41 is sleeved and fixed on the outside of the fixed rod 410 and is coaxially arranged in the channel hole 4301.

[0045] In the specific implementation process, after the coil assembly 41 is energized, a predetermined magnetic field is formed. The permanent magnet 430 is subjected to a corresponding magnetic force within the predetermined magnetic field and is driven by this magnetic force to move along the axial direction of the channel hole 4301, and the rhythm frame 2 also moves synchronously; after a predetermined interval of time, the current direction in the reverse coil assembly 41 is reversed. The permanent magnet 430 is subjected to an opposite magnetic force within the magnetic field. Under the action of this magnetic force, the permanent magnet 430 gradually stops the moving trend in the current moving direction and then moves in the opposite direction; alternately switching the current direction can form a reciprocating motion. It can be understood that to ensure that the channel hole 4301 and the coil assembly 41 do not interfere with each other, the inner diameter of the channel hole 4301 should be adapted to the outer diameter of the coil assembly 41, so as to form a clearance fit; on the other hand, the fixed frame 1 and the rhythm frame 2 are connected through corresponding connectors 3: the connector 3 can be designed to generate elastic deformation only in the axial direction parallel to the channel hole 4301; or the clearance fit design between the channel hole 4301 and the coil assembly 41 includes a space for offsetting the elastic deformation amount of the connector 3 in the radial direction of the channel hole 4301, and the elastic deformation amount generated by the connector 3 in the axial direction of the channel hole 4301 is the stroke amount of the reciprocating motion of the rhythm frame 2.

[0046] Furthermore, multiple sets of magnetic drive mechanisms 4 in the present application can be provided. The multiple sets of magnetic drive mechanisms 4 are arranged at intervals between the fixed frame 1 and the rhythm frame 2, which can achieve the distribution and control of the balance force, avoid tilting or instability, thereby reducing the vibration and swing of the entire base device and improving the stability during operation; in addition, through the multiple sets of drive mechanisms 4 arranged at intervals, more uniform and comprehensive force transmission can be provided. Each magnetic drive assembly 43 can apply a magnetic driving force to the rhythm frame 2, so that the force can be evenly distributed on the entire frame system of the rhythm frame 2, enhancing the force transmission effect.

[0047] See Figures 4 - 6 , the permanent magnet 430 and the coil assembly 41 can adopt the following two structural designs to achieve magnetic drive: when only one permanent magnet 430 is used, see Figure 6 , the center of the coil assembly 41 should be set offset from the center of the permanent magnet 430 to avoid the magnetic forces at both ends of the permanent magnet 430 being equal in magnitude and opposite in direction and canceling each other out, resulting in the inability to start the magnetic drive assembly 43. Further, the center of the coil assembly 41 should be offset from the center of the permanent magnet 430 by at least the distance of one reciprocating stroke to avoid the centers of the two being aligned during the reciprocating motion, resulting in the cancellation of the magnetic forces at both ends of the permanent magnet and insufficient power; when two permanent magnets 430 are used, see Figure 4 and Figure 5, two permanent magnets 430 are connected by docking one end with the same magnetic pole. Under the magnetic field of the coil assembly 41, the magnetic forces received by each permanent magnet 430 in the magnetic field of the coil assembly 41 are always in the same direction, and there is no magnetic force cancellation effect. After the superposition of the same-direction magnetic forces, the magnetic drive assembly 43 can obtain greater power. It can be understood that the channel hole 4301 should penetrate through the two permanent magnets 430 in sequence for the installation and fixation of the coil assembly 41, and the installation position of the coil assembly 41 can be set at any position within the channel hole 4301, without worrying about the magnetic force cancellation caused by the alignment of the center of the coil assembly 41 and the permanent magnet 430.

[0048] Furthermore, adopting the structural design of connecting two permanent magnets 430 by docking one end with the same magnetic pole requires overcoming the strong repulsive force between the two permanent magnets 430. Therefore, in some embodiments, referring to Figure 5 , the magnetic drive assembly 43 further includes a sleeve 432 for assembling and fixing the two permanent magnets 430. The sleeve 432 includes an installation cylinder 4321 with an inner hole diameter adapted to the permanent magnet 430 and fastening rings 4323 that abut against the corresponding ends of the permanent magnet 430 from both ends of the installation cylinder 4321. Installing and fixing the two permanent magnets 430 through the sleeve 432 has a simple structure and a firm effect.

[0049] Referring to Figure 4 and Figure 5 , in some embodiments, the length of the coil assembly 41 in its axial direction can be set to be less than the length of the outer permanent magnet 430. When the permanent magnet 430 makes a reciprocating motion, the coil assembly 41 is always within the channel hole 4301, reducing the risk of collision; in some embodiments, the length of the coil assembly 41 in its axial direction is set to be greater than or equal to the length of the outer permanent magnet 430. The coil assembly 41 can provide a magnetic field environment with greater intensity, increasing the magnetic force obtained by the magnetic drive assembly 43 and raising the upper limit of the reciprocating motion stroke of the rhythm frame 2. Further, the magnetic field intensity of the coil assembly 41 can be further enhanced by setting an iron core 412 at the center of the coil assembly 41. Specifically, the coil assembly 41 can be directly formed by winding a wire around the outside of the iron core 412 turn by turn.

[0050] Participate Figure 1 and Figure 2 , in some embodiments, the fixing frame 1 includes a first main frame 10. A number of first keels 101 are provided inside the first main frame 10. A foot support 14 is provided at the bottom of the first main frame 10, and a support frame 12 is fixed on the first keel 101. The end of the foot support 14 forms a hemispherical support portion 141, increasing the contact surface with the placement platform and making the placement of the base device more stable. Specifically, the hemispherical support portion 141 can be made of a ductile material such as rubber, having a certain buffering and shock-absorbing effect and reducing the shaking of the fixing frame 1 during the operation of the rhythm frame 2.

[0051] Refer to Figure 2 and Figure 3 , the support frame 12 includes two support plates 121 arranged in parallel at a predetermined distance. The bottom of the support plate 121 is fixed to the corresponding first keel 101. Wherein, a fixing hole 1210 is formed on each support plate 121. Both ends of the fixing rod 410 are respectively inserted into the fixing hole 1210, and a first locking member 16 is further provided to lock the fixing rod 410 from the outer end of the support plate 121. By providing the support frame 12 on the fixing frame 1 to fixedly install the fixing rod 410, and then fixing the coil assembly 41 and the fixing frame 1, the displacement of the coil assembly 41 is prevented, and the structural stability of the base device is ensured. In specific implementation, the first locking member 16 can adopt common fixing parts such as screws, positioning pins, buckles, and clamp members; the two support plates 121 can be fixed on the same first keel 101, or can be fixed on different first keels 101, or one support plate 121 can be fixed on multiple first keels 101. The connection relationship between the support plate 121 and the first keel 101 only depends on the distribution of the first keel 101 at the predetermined position for installing the support plate 121 on the first main frame 10.

[0052] It can be understood that the magnetic driving assembly 43 in the driving mechanism 4 of the present application is used to drive the rhythm frame 2 to perform reciprocating motion, and the coil assembly 41 needs to be relatively stationary, that is, there is no relative movement between the coil assembly 41 and the fixing rod 410. Specifically, the coil assembly 41 and the fixing rod 410 can be connected and fixed by welding, integral molding, etc., or a through hole 414 can be formed at the center of the coil assembly 41 (refer to Figure 3 ). After the fixing rod 410 passes through the through hole 414, a positioning member is provided at each end of the coil assembly 41 to jointly limit the axial and radial displacements of the coil assembly 41 by controlling the matching accuracy between the through hole 414 and the fixing rod 410 and the axial limiting effect of the positioning member. The fixing rod 410 can be provided as one or more. Each fixing rod 410 should also be arranged parallel to the central axis of the channel hole 4301 to avoid interference with the inner wall of the channel hole 4301; when the center of the coil assembly 41 is provided with an iron core 412, the fixing rod 410 and the iron core 412 are preferably integrally formed, and then the wire is wound around the outer side of the iron core 412 turn by turn to form the coil assembly 41.

[0053] Therefore, during the assembly process, the fixed connection coil assembly 41 and the fixing rod 410 should be connected first. Then, the two ends of the fixing rod 410 are correspondingly inserted into the fixing holes 1210 of the support plates 121 at the corresponding ends. Finally, the first locking member 16 is installed to tightly lock the fixing rod 410. It can be understood that before installing the fixing rod 410, at least one of the support plates 121 cannot be pre-fixed to the first keel 101 to facilitate the insertion operation of the fixing rod 410; or both support plates 121 are pre-fixed to the first keel 101, and at the same time, guiding grooves (not shown in the figure) extending to the edges of the support plates 121 are provided around the holes of the two fixing holes 1210. The fixing rod 410 with the coil assembly 41 fixedly installed thereon slides along the groove walls of the guiding grooves from the openings of the guiding grooves provided at the edges of the support plates 121 and finally abuts into the fixing holes 1210. Finally, the fixing rod 410 is locked by the first locking member 16.

[0054] Participate Figure 1 and Figure 3 , in some embodiments, the rhythm frame 2 includes a second main frame 20 and an adapter plate 22. A plurality of second keels 201 are provided inside the second main frame 20. The adapter plates 22 are provided in two pieces and are arranged in parallel at a predetermined distance and the tops are fixed to the corresponding second keels 201. Each adapter plate 22 is provided with an avoidance hole 221 corresponding to the coil assembly 41. The periphery of the avoidance hole 221 abuts against the outer end face of the fastening ring 4323. Another second locking member 26 locks the fastening ring 4323 from the outer end of the adapter plate 22, and the sleeve 432 in the magnetic drive assembly 43 and the adapter plate 22 are relatively fixed.

[0055] By providing the adapter plate 22 on the rhythm frame 2 for installing and fixing the magnetic drive assembly 43, wherein the avoidance hole 221 is provided on the adapter plate 22 to prevent interference between the adapter plate 22 and the coil assembly 41 during the reciprocating movement of the magnetic drive assembly 43, which affects the smoothness of the operation of the rhythm frame 2. At the same time, the periphery of the avoidance hole 221 also tightly abuts against the outer end face of the fastening ring 4323, and the inner end face of the fastening ring 4323 correspondingly abuts against the two end faces of the two permanent magnets 430. Then, the second locking member 26 is used to fixedly lock the adapter plate 22 and the fastening ring 4323 to complete the fixed connection of the permanent magnet 430, the sleeve 432 and the adapter plate 22.

[0056] Specifically, the second locking member 26 can adopt common fixing members such as screws, pins, buckles, and clamp members; the connection relationship between the two adapter plates 22 and the second keel 201 only depends on the distribution of the second keel 201 at the predetermined positions on the second main frame 20 for installing the adapter plates 22.

[0057] See Figure 5, It can be understood that the channel hole 4301 in the magnetic driving component 43 of the driving mechanism 4 of the present application needs to be coaxially arranged with the coil component 41. Therefore, the adapter plate 22 and the support plate 121 need to be misaligned in the axial direction of the channel hole 4301. Among them, the adapter plate 22 needs to reciprocate with the magnetic driving component 43. To prevent the support plate 121 from blocking the movement of the adapter plate 22, the support plate 121 is usually arranged outside the adapter plate 22. Preferably, the distance between the support plate 121 and the adapter plate 22 at the same end is greater than or equal to half of the reciprocating movement stroke of the magnetic driving component 43.

[0058] During the assembly process, due to the strong force between the two permanent magnets 430, therefore, the adapter plate 22 on one side and the fastening ring 4323 should be fixed first with the second fastener 26. Then, the installation cylinder 4321 is sleeved on the opposite side of the fastening ring 4323. Then, two permanent magnets 430 are placed, and the fastening ring 4323 and the adapter plate 22 on the other side are abutted again. The fastening ring 4323 and the adapter plate 22 on the corresponding side are tightly connected by using the second fastener 26. Finally, the adapter plate 22 is fixed to the second skeleton, that is, the installation of the magnetic driving component 43 is completed. It can be understood that both ends of the installation cylinder 4321 will be fixed by the extrusion of the adapter plate 22, and it can also be relatively fixed with the fastening ring 4323 by interference fit.

[0059] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this implementation. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0060] Although the embodiments of this implementation have been shown and described, those of ordinary skill in the art can understand that: various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of this implementation. The scope of this implementation is defined by the claims and their equivalents.

Claims

1. A magnetic drive base device, characterized in that, Comprising: A fixing frame; A rhythm frame, which is arranged to be able to reciprocate relative to the fixing frame; And A magnetic drive mechanism, including a coil assembly fixedly arranged relative to the fixing frame and a magnetic moving assembly fixedly arranged relative to the rhythm frame. The coil assembly is arranged to switch magnetic poles at a predetermined frequency, and the magnetic moving assembly is driven by two opposite magnetic forces alternately within the changing magnetic field of the coil assembly to drive the rhythm frame to reciprocate relative to the fixing frame; Wherein, the magnetic moving assembly includes a permanent magnet with a channel hole formed in the middle, and a fixing rod passes through the channel hole and is fixedly arranged at both ends relative to the fixing frame. The coil assembly is sleeved and fixed outside the fixing rod and coaxially arranged within the channel hole.

2. The magnetic drive base device according to claim 1, wherein There is 1 permanent magnet, and the coil assembly is arranged to deviate from the center of the permanent magnet in the axial direction of the channel hole.

3. The magnetic drive base device according to claim 1, characterized in that, There are 2 permanent magnets, and one end of the 2 permanent magnets with the same magnetic poles is butted and connected, and the channel hole penetrates through the 2 permanent magnets.

4. The magnetic drive base device according to claim 3, characterized in that, The length of the coil assembly in its axial direction is greater than or equal to the length of the permanent magnet.

5. The magnetic drive base device according to claim 3, characterized in that, The length of the coil assembly in its axial direction is less than the length of the permanent magnet.

6. The magnetic drive base device according to claim 1, characterized in that, The magnetic moving assembly further includes a sleeve for assembling and fixing the 2 permanent magnets. The sleeve includes an installation cylinder with an inner hole diameter adapted to the permanent magnet and a fastening ring for fixing the permanent magnet by pressing against the corresponding end faces of the permanent magnet at both ends of the installation cylinder.

7. The magnetic drive base device according to claim 1, characterized in that A iron core is further arranged at the center of the coil assembly, and the middle section of the fixing rod passes through and is fixed within the iron core and is fixed to the fixing frame at both ends.

8. The magnetic drive base device according to claim 1, wherein, The fixing frame includes: A first main frame, and several first keels are arranged within the first main frame; A support frame, which includes two support plates arranged in parallel at a predetermined distance. The bottom of the support plate is fixed to the corresponding first keel; and A footrest, which is fixed to the bottom of the main frame and a hemispherical support portion is formed at the end; Wherein, a fixing hole is formed on each support plate, and both ends of the fixing rod respectively pass through the fixing holes, and a first locking member is further arranged to lock the fixing rod from the outer end of the support plate.

9. The magnetic drive base device according to claim 6, wherein, The rhythm frame includes: A second main frame, and several second keels are arranged within the second main frame; and A transfer plate, and there are two transfer plates arranged in parallel at a predetermined distance. The top of the transfer plate is fixed to the corresponding second keel; Wherein, an avoidance hole corresponding to the coil assembly is formed on each transfer plate, the periphery of the avoidance hole abuts against the outer end face of the fastening ring, and a second locking member is further arranged to lock the fastening ring from the outer end of the transfer plate.

10. A rhythmic furniture, characterized in that, Comprising the magnetic drive base device according to any one of claims 1-9 and a furniture body, and the furniture body is installed on the rhythm frame.

Images