CN215344405U

CN215344405U - Base lifting mechanism and magnetic suspension device

Info

Publication number: CN215344405U
Application number: CN202121713265.8U
Authority: CN
Inventors: 许锋
Original assignee: Dongguan Qiandao E Commerce Co ltd
Current assignee: Dongguan Qiandao E Commerce Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-12-28
Anticipated expiration: 2031-07-27

Abstract

The utility model discloses a base lifting mechanism, which comprises a base, a base cover and a lifting mechanism arranged between the base and the base cover, wherein the lifting mechanism comprises a clamping component, a movable component and a first elastic component; a magnetic levitation apparatus is also disclosed. When the base cover is pressed downwards by external force, the meshing position of the tooth part and the bottom of the ring tooth is changed, the convex key of the movable part moves upwards from the gap between the clamping positions by the first elastic part, and the base cover are provided with buckling structures to limit the maximum stroke of the upward movement of the convex key. The maximum stroke is the distance from the bottom of the magnetic suspension body suspended at the preset position to the upper surface of the base cover when the base cover and the base are combined together, and the magnetic suspension body can be lifted without additionally arranging a driver on the base.

Description

Base lifting mechanism and magnetic suspension device

Technical Field

The utility model relates to a base lifting mechanism and a magnetic suspension device.

Background

The magnetic suspension device makes the suspension body suspend in the preset position because of the magnetic force effect, thereby through the mysterious, deep and auspicious sense of visual impact, because of so magnetic suspension device is often by people as decoration, show thing. The existing magnetic suspension device mainly has two types, one type is an up-draft type, a coil is positioned above, a suspended matter is positioned below, and the balance between the coil and the suspended matter and the gravity is maintained by means of suction force, and the other type is a down-draft type, the coil is positioned below, the suspended matter is positioned above, and the balance between the coil and the gravity is maintained by means of repulsion force.

The push-down type is that in the process of realizing suspension, a user needs to manually find and place the suspension body at the preset position relative to the base. This process of finding the preset position by feel may be difficult and lengthy for new users and may thus lose patience and interest.

Therefore, a design of vertically pushing the suspension body upwards to a preset position by using a lifting mechanism appears, and the use and study cost of a user is reduced. For example, chinese patent CN210693804U discloses a magnetic levitation apparatus and a base thereof having a lifting mechanism, wherein the lifting mechanism includes a threaded column immovably mounted with respect to the base and a lifting bracket for supporting a magnetic assembly of the base, a driving force required for generating a relative rotation between the threaded column and the threaded portion of the lifting bracket is provided by a driver such as a motor as described in the specification, however, the driver is mounted on the base, which affects the structure and placement position of the magnetic assembly and control member, thereby increasing the area of the base.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a base lifting mechanism, and aims to solve the technical problem that the existing lifting mechanism for a magnetic suspension device needs to be additionally provided with drivers such as a motor and the like to drive lifting, so that the structures and the placing positions of a magnetic assembly and a control piece are influenced.

In order to achieve the above object, the present invention provides a susceptor lifting mechanism, which includes a susceptor, a susceptor cover, and a lifting mechanism disposed between the susceptor and the susceptor cover;

the lifting mechanism comprises a clamping component, a movable component and a first elastic component;

the clamping component is fixedly arranged on the substrate and provided with a ring tooth bottom and a vertical cylinder body, a clamping position is arranged on the vertical cylinder body at a gap, the movable component can move up and down along the clamping component, one end of the movable component is movably connected to the base cover, a tooth part is arranged at the edge of the other end of the movable component to abut against the ring tooth bottom of the clamping component, and a convex key is arranged in the radial direction to limit the movable component between the clamping position of the clamping component and the ring tooth bottom;

the first elastic part is arranged between the base cover and the base, when the convex key is clamped at the clamping position, the meshing position of the tooth part and the bottom of the ring tooth is changed when the base cover is pressed, the convex key of the movable part is moved upwards from the gap between the clamping positions by the first elastic part, and the base cover are provided with buckling structures to limit the maximum stroke of the upward movement of the convex key.

Preferably, the cylinder body of the clamping component is vertically covered outside the bottom of the ring gear, the inner side of the cylinder body is provided with an inclined clamping position, the movable component is arranged in the cylinder body, and the outer side of the movable component is provided with an inclined convex key corresponding to the clamping position.

Preferably, the lifting mechanism further comprises a second elastic element, a limiting sleeve is radially arranged inside the movable part, a screw is movably arranged in the movable part relatively and penetrates through the limiting sleeve to be fixedly connected to the base cover, and the second elastic element is sleeved on the periphery of the screw between the base cover and the limiting sleeve.

Preferably, the lifting mechanisms are at least two and are symmetrically arranged relative to the center of the substrate.

Another objective of the present invention is to provide a magnetic suspension apparatus, which includes the above-mentioned base lifting mechanism and magnetic suspension body, wherein the base is provided with a magnetic assembly having an upper surface with the same magnetism as the lower surface of the magnetic suspension body so as to suspend the magnetic suspension body at a predetermined position above the center of the base, and the base or the base cover is provided with a control member, and an electromagnetic coil assembly and a hall sensor electrically connected to the control member.

Preferably, the magnetic assembly is four permanent magnets which are symmetrical with the center of the substrate or a permanent magnet with a vertical hollow structure.

Preferably, the hall sensor is arranged at the center position of the base, and the electromagnetic coils are symmetrically arranged on the base cover at the center position of the base.

Preferably, the edge of the base is vertically and upwardly provided with a fastener, the edge of the base cover is provided with a matched buckle groove extending inwards corresponding to the fastener, and the length of the buckle groove in the vertical direction is the distance from the upper surface of the base cover to the bottom end of the magnetic suspension body at the preset position.

Preferably, a vertical positioning column is arranged at the center of the upper surface of the base cover, and a positioning hole is correspondingly arranged at the bottom end of the magnetic suspension body.

Preferably, a raised power interface is arranged on the side edge of the base, an avoidance hole is correspondingly formed in the base cover, and the thickness of the raised power interface is the same as that of the side edge of the base cover.

Compared with the prior art, the utility model has the following beneficial effects:

when the base and the base cover are combined together, namely when the convex key is clamped at the clamping position, the meshing position of the tooth part and the bottom of the ring tooth is changed when the base cover is pressed downwards by external force, the convex key of the movable part moves upwards from the gap between the clamping positions by the first elastic part, and the base cover are provided with buckling structures to limit the maximum stroke of the upward movement of the convex key. The maximum stroke is the distance from the bottom of the magnetic suspension body suspended at the preset position to the upper surface of the base cover when the base cover and the substrate are combined together; the meshing position of the tooth part of the base cover and the bottom of the ring tooth is pressed again to change, so that the convex key is limited at the clamping position.

Drawings

FIG. 1 is a schematic structural diagram of a susceptor lift mechanism according to the present invention;

FIG. 2 is a schematic cross-sectional view of a base lifting mechanism according to the present invention;

FIG. 3 is a schematic structural diagram of a magnetic levitation apparatus according to the present invention;

fig. 4 is a schematic view of a magnetic levitation apparatus according to the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the present invention and should not be construed as limiting the present invention, and all other embodiments that can be obtained by one skilled in the art based on the embodiments of the present invention without inventive efforts shall fall within the scope of protection of the present invention.

In one embodiment, referring to fig. 1-2, the susceptor lifting mechanism includes a substrate 1, a substrate cover 2, and a lifting mechanism 3 disposed between the substrate 1 and the substrate cover 2, the lifting mechanism 3 includes a locking member 310, a movable member 320, and a first elastic member 330; the clamping component 310 is fixedly arranged on the substrate 1, the clamping component 310 is provided with a ring tooth bottom 311 and a vertical cylinder 312, a clamping part 3121 is arranged on the vertical cylinder 312 in a clearance way, the movable component 320 can move up and down along the clamping component 310, one end of the movable component 320 is movably connected to the base cover 2, the other end of the movable component is provided with a tooth part 321 at the edge thereof to abut against the ring tooth bottom 311 of the clamping component 310, and a convex key 322 is arranged in the radial direction to limit the movable component between the clamping part 3121 of the clamping component 310 and the ring tooth bottom 311;

the first elastic member 330 is disposed between the base cover 2 and the base 1, when the key 322 is locked at the position of the lock 3121, the engaging position between the tooth 321 and the ring tooth bottom 311 is changed when the base cover 2 is pressed, the first elastic member 330 moves the key 322 of the movable member 320 upward from the gap 3122 between the lock 3121, and the base 1 and the base cover 2 are provided with a locking structure to limit the maximum stroke of the upward movement of the key 322.

The cylinder 312 of the blocking component 310 is vertically covered outside the ring tooth bottom 311, the inner side of the cylinder 312 is provided with an inclined blocking position 3121, the movable component 320 is arranged in the cylinder 312, and the outer side of the movable component 320 is provided with an inclined convex key 322 corresponding to the blocking position 3121.

In the present embodiment, the number of the lifting mechanisms 3 is four, and the lifting mechanisms are arranged symmetrically with respect to the center of the substrate 1. The first elastic member 330 in each lifting mechanism 1 is a large spring movably disposed between the base cover 2 and the base 1, and is used to support the base cover 2 to move upward, and when the base cover 2 moves to a preset position, the snap structure between the base cover 2 and the base 1 limits the base cover 2 to continue moving upward, so as to ensure that the base cover 2 stops at the preset position during the maximum upward movement stroke of the base cover 2. Four bottom plates radially extend from the bottom of the locking member 310 and are fixed on the substrate 1 by four screws. The clamping component 310 can be an integral structure with a ring gear bottom 311 structure and a vertical cylinder 312 with a clamp 3121 arranged in a gap, or can be arranged by matching the ring gear bottom 311 structure with the cylinder 312 structure to obtain the outer diameter of the ring gear bottom 311 structure and fitting the inner diameter of the circular cylinder 312, and the two structures are fixed together. Meanwhile, the movable component 320 is arranged in the cylinder 312 of the position-limiting component 310 in a clearance way, can move up and down and can rotate along the anticlockwise or clockwise direction relative to the position-limiting component 310, the tooth part 321 of the movable component 320 is meshed with the annular tooth bottom part 311 of the position-limiting component 310, so that the movable component 320 can only rotate one tooth pitch when rotating relative to the position-limiting component 310, the clearance between the position-limiting positions 3121 is arranged, the clearance 3122 is slightly larger than the transverse section length of the convex key 322, when the base cover 2 and the base 1 are combined, the convex key 322 of the movable component 320 is limited at the bottom of the position-limiting position 3121, because of the elastic action of the large spring, the base cover 2 is pressed downwards by external force, the tooth part 321 rotates to the next tooth through the inclination angle of the convex key 322, at the vertical direction, the convex key 322 just rotates to the position of the clearance 3122 between the position-limiting positions 3121, the pressure for pressing the base cover 2 downwards is released slowly, the base cover 2 moves upward to the maximum stroke and just to the preset position under the elastic action of the large spring. When pressure is applied to the base cover 2 downwards again until the tooth part 321 abuts against the ring tooth bottom part 311, the key 322 rotates to the next or back to the previous tooth due to the inclination angle of the key 322, at the moment, the key 322 rotates to the lower part of the blocking position 3121 in the vertical direction, after the pressure is released, the key 322 is blocked at the lower part of the blocking position 3121, and the base cover 2 and the base 1 are closed again.

The lifting mechanism 3 further includes a second elastic member 350, a position-limiting sleeve 323 is radially disposed inside the movable member 320, a screw 340 is movably disposed inside the movable member 320, the screw 340 passes through the position-limiting sleeve 323 and is fixedly connected to the base cover 2, and the second elastic member 350 is sleeved on the periphery of the screw 340 between the base cover 2 and the position-limiting sleeve 323.

The second elastic member 350 is a small spring, two ends of which have elastic potential energy are respectively abutted to the base cover 2 and the limiting sleeve 323, the screw hole 210 is disposed on the inner side of the base cover 2 corresponding to the screw 340, and the screw 340 passes through the limiting sleeve 323 and extends into the screw hole 210 and is screwed, so that the movable member 320 can slide up and down and rotate left and right relative to the screw 340. When the base cover 2 is pressed downwards, the small spring is compressed and presses the movable part 320 to move downwards, when the base cover 2 and the base 1 are combined together, the screw 340 is limited by the limiting sleeve 323, so that the base cover 2 cannot be loosened or move upwards due to the elastic recovery of the large spring, and the movable part 320 can rotate left and right relative to the screw 340 to ensure that the base cover 2 cannot be driven to rotate along with the screw when the tooth part 321 rotates into the next tooth of the ring tooth bottom 311, and a relatively stable state is kept.

In this embodiment, referring to fig. 1-4, the magnetic suspension apparatus includes the above-mentioned base lifting mechanism and the magnetic suspension 4, wherein the base 1 is provided with a magnetic assembly having an upper surface with the same magnetism as the lower surface of the magnetic suspension 4 so as to suspend the magnetic suspension 4 at a predetermined position above the center of the base 1, the base 1 is provided with a control member 6 and a hall sensor 8 electrically connected to the control member 6, and the base cover is fixedly provided with an electromagnetic coil assembly 7.

Specifically, the magnetic assembly is four disk-shaped permanent magnets 5 which are symmetrical by taking the center of the substrate 1 as the center, four Hall sensors 8 are arranged at the center of the substrate 1, and four electromagnetic coils 7 are symmetrically arranged on the substrate cover 2 by taking the center of the substrate 1 as the center. When the base cover 2 and the substrate 1 are combined together, the lower surface of the electromagnetic coil 7 fixedly arranged on the base cover 2 just contacts with the substrate 1, the lower surface of the electromagnetic coil 7 and the lower surface of the permanent magnet 5 are basically kept horizontal, the four electromagnetic coils 7 are positioned on the periphery of the four permanent magnets 5, and the four lifting mechanisms 3 are positioned on the periphery of the four electromagnetic coils 7.

The edge of the substrate 1 is vertically and upwards provided with a fastener 120, the edge of the substrate cover 2 is inwards extended with a matched buckle groove 240 corresponding to the fastener 120, wherein the length of the buckle groove 240 in the vertical direction is the distance from the upper surface of the substrate cover 2 to the bottom end of the magnetic suspension body 4 at a preset position; the center of the upper surface of the base cap 2 is provided with a vertical positioning column 230, and the bottom of the magnetic suspension 4 is correspondingly provided with a positioning hole 410.

When the magnetic suspension 4 passes through the positioning hole 410 and is positioned on the positioning column 230 on the upper surface of the base cover 2, if the base cover 2 and the substrate 1 are combined together, the base cover 2 is pressed downward to make the convex key 322 of the movable component 320 pop out of the position lock 3121, the base cover 2 and the magnetic suspension 4 on the base cover are sent upward to the preset position, at this time, the magnetic repulsion force generated between the permanent magnet 5 on the substrate 1 and the magnetic suspension 4 counteracts the gravity of the magnetic suspension 4 to make the magnetic suspension 4 suspend at the preset position, at this time, the base cover 2 is pressed again, the magnetic suspension 4 will not move downward along with the base cover 2, and when the convex key 322 is clamped at the lower end of the position lock 3121 again, the lifting operation of the magnetic suspension 4 is completed. The Hall sensor 8 detects the horizontal deviation of the magnetic suspension 4 relative to the preset position and transmits the deviation information to the control member 6, so that the control member 6 controls the current passing through the electromagnetic coil 7 and the direction of the current to correct the deviation.

The side of the substrate 1 is provided with a raised power interface 110, the base cover 2 is correspondingly provided with an avoiding hole 220, and the thickness of the raised power interface 110 is the same as that of the side of the base cover 2. When the base cover 2 is covered on the substrate 1, the raised power interface 110 and the side outer ring of the base cover 2 are in one surface.

The above description is only a part of or preferred embodiments of the present invention, and neither the text nor the drawings should be construed as limiting the scope of the present invention, and all equivalent structural changes, which are made by using the contents of the present specification and the drawings, or any other related technical fields, are included in the scope of the present invention.

Claims

1. A base lifting mechanism is characterized by comprising a base, a base cover and a lifting mechanism arranged between the base and the base cover;

2. The susceptor lift mechanism according to claim 1, wherein the barrel of the detent member is vertically covered outside the bottom of the ring gear, the inside of the barrel is provided with the inclined detent, the movable member is disposed inside the barrel, and the outside of the movable member is provided with the inclined tab corresponding to the detent.

3. The susceptor lift mechanism according to claim 1 or 2, further comprising a second elastic member, wherein a stop collar is radially disposed inside the movable member, a screw is movably disposed in the movable member and passes through the stop collar to be fixedly connected to the base cover, and the second elastic member is disposed around the screw between the base cover and the stop collar.

4. The susceptor lift mechanism of claim 1, wherein the lift mechanism is at least two and is symmetrically disposed about the center of the substrate.

5. A magnetic levitation apparatus comprising the substrate lifting mechanism and the magnetic levitation body as claimed in any one of claims 1 to 4, wherein the substrate is provided with a magnetic assembly having an upper surface with the same magnetism as a lower surface of the magnetic levitation body so that the magnetic levitation body is levitated at a predetermined position above the center of the substrate, and the substrate or the substrate cover is provided with a control member and an electromagnetic coil assembly and a Hall sensor electrically connected to the control member.

6. Magnetic levitation apparatus as claimed in claim 5, wherein the magnetic assembly is four permanent magnets that are centrosymmetric about the substrate or a permanent magnet with a vertical hollow structure.

7. The magnetic levitation device as recited in claim 5, wherein the Hall sensor is disposed at a center position of the base, and the electromagnetic coils are symmetrically disposed on the base cover at the center position of the base.

8. The magnetic levitation device as recited in claim 5, wherein the base edge is vertically provided with a fastener upward, the base cover edge is provided with a matching slot inward extending along the corresponding fastener, and the length of the slot in the vertical direction is the distance from the upper surface of the base cover to the bottom end of the magnetic suspension body at a preset position.

9. The magnetic levitation device as recited in claim 5, wherein a vertical positioning column is disposed at a central position of the upper surface of the base cover, and a positioning hole is correspondingly disposed at the bottom end of the magnetic levitation body.

10. The magnetic levitation device as recited in claim 5, wherein the lateral side of the base is provided with a protruding power interface, the base cover is correspondingly provided with an avoiding hole, and the thickness of the protruding power interface is the same as the thickness of the lateral side of the base cover.