CN216416374U - Multi-bearing rotation superposition control mechanism of deformable table - Google Patents

Abstract

The utility model relates to the technical field of deformable tables, and discloses a multi-bearing rotary superposition control mechanism of a deformable table, which comprises a central supporting part fixed on a supporting plate, wherein a rotating part is coaxially and rotatably connected to the central supporting part, the rotating part is fixedly connected with a chassis, a first installation position for installing a fan blade assembly is arranged above the chassis on the central supporting part, and a second installation position for installing a table top of the table is arranged above the first installation position on the central supporting part; the multi-bearing rotating and stacking control mechanism of the deformable table has the advantages of simple structural design, easiness in installation, convenience in operation and low cost.

Description

Multi-bearing rotation superposition control mechanism of deformable table

Technical Field

The utility model relates to the technical field of deformable tables, in particular to a multi-bearing rotating and stacking control mechanism of a deformable table.

Background

The in-process that the area enlarges is being carried out to the table that warp, needs realize the increase of table area through the mode from middle to periphery extension, at the in-process that the table warp, can not leave the rotation of table and then the deformation of drive table, and also the rotational design to the table provides more design spaces for the cooperation user demand, and present table stack slewing mechanism design is complicated, has with high costs, the problem that whole cost is high.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model provides a multi-bearing rotary superposition control mechanism of a deformable table, which has the advantages of simple structural design, easiness in installation, convenience in operation and low cost.

The technical scheme adopted by the utility model is as follows:

the utility model provides a rotatory stack control mechanism of multiaxis of table warp, is including fixing the central supporting part on the supporting disk, coaxial rotation is connected with rotation portion on the central supporting part, rotation portion and chassis fixed connection, the top that lies in the chassis on the central supporting part is equipped with the first installation position that is used for installing flabellum subassembly, the top that lies in first installation position on the central supporting part is equipped with the second installation position that is used for installing the desk mesa.

In this technical scheme, adopt central support portion and rotation portion normal running fit's structural design, first installation position and second installation position on the central support portion are used for installing flabellum subassembly and desk mesa respectively, rotation portion can rotate for central support portion, simultaneously after rotation portion and chassis fixed connection, then the chassis can realize rotating for central support portion through rotation portion, and then the rotation through the chassis conveniently realizes the drive to flabellum subassembly, above-mentioned structural design is simple, and simple to operate is swift, conveniently realize the rotatory deformation operation to the table, can to a great extent reduce the manufacturing cost of product.

Furthermore, in order to better support the chassis, the chassis support device further comprises a turntable coaxially arranged between the support plate and the chassis, and the chassis is rotatably connected with the support plate through the turntable.

It should be noted that, according to different use requirements of the desktop size, the size of the chassis may be different, and in the design of the chassis with a larger size, a better supporting effect on the chassis may be achieved by increasing the number of the rotating discs. Of course, the rotation axes of the turntable and the rotating part need to be consistent.

Further, for better realization the normal fit relation between desk mesa and the central support portion, simplify the project organization simultaneously, reduction in production cost, the second installation position is the arc tip that sets up in the central support portion upper end, arc tip and desk mesa normal fit.

In this design, central supporting part can be the support column structure who adopts wooden material, and the upper end of support column can be the arc terminal surface, certainly, the lower terminal surface of desk mesa be equipped with arc terminal surface complex arc wall to realize the two normal running fit relation, simultaneously, wooden material's support column still further reduced the accessory cost under the condition that can reach structural strength and satisfy the requirement, and then reduced the manufacturing cost of product.

Further, for better realization of the rotating fit relation between the table top and the central support part, the integrated fitting design is conveniently realized, the central support part and the rotating part are integrated into a whole, the central support part is the inner ring of the first rotating bearing, and the rotating part is the outer ring of the first rotating bearing.

Furthermore, in order to better realize the rotation of the table top, the table top is rotatably connected with the second mounting position through a second rotary bearing.

Further, the flabellum subassembly is including installing crank carousel, the even a plurality of horizontal slide rails that set up on the chassis of circumference on first installation position, along horizontal slide rail horizontal migration's translation flabellum subassembly and lift flabellum subassembly, circumference evenly is equipped with a plurality of crank connecting portions on the crank carousel, the upper end and the lower extreme of crank connecting portion are connected with the lower crank that drives translation flabellum subassembly along the last crank of horizontal slide rail removal and drive lift flabellum subassembly along horizontal slide rail removal respectively.

Among this technical scheme, the supporting disk is installed on the table frame, play the supporting role, the chassis can rotate for the supporting disk, because circumference evenly is equipped with a plurality of horizontal slide rails on the chassis, at chassis pivoted in-process, along with the rotation of horizontal slide rail, drive translation flabellum subassembly and lift flabellum subassembly simultaneously and remove along horizontal slide rail, when translation flabellum subassembly and lift flabellum subassembly outwards remove along horizontal slide rail simultaneously, then realize the extension of table, when translation flabellum subassembly and lift flabellum subassembly provide when inwards removing along horizontal slide rail, then realize withdrawing of table. The technical scheme has reasonable structure, can realize the extension and the retraction of the fan blades, realizes linkage operation among all components, and has simple and convenient operation.

Further, for the raising and lowering functions of better realization lift fan blade subassembly, conveniently realize the holistic expansion of table and withdraw, lift fan blade subassembly includes first horizontal slip subassembly and lift fan blade, first horizontal slip subassembly and lower articulate end connection, perpendicular sliding connection has first mounting panel on the first horizontal slip subassembly, lift fan blade installs on first mounting panel, be equipped with the gyro wheel on the first mounting panel, be equipped with the track board on the chassis, be equipped with the hypotenuse on the track board, thereby the in-process gyro wheel that first horizontal slip subassembly removed along horizontal sliding rail makes first mounting panel carry out the lifting movement for first horizontal slip subassembly through walking along the hypotenuse.

In the technical scheme, as the horizontal sliding rail is arranged on the chassis, the first horizontal sliding component is driven by the lower crank to move linearly along the horizontal sliding rail, and the fan blades arranged on the first mounting plate move linearly along with the linear movement of the first horizontal sliding component; the first horizontal sliding component is vertically connected with a first mounting plate in a sliding way, the first mounting plate is provided with a roller, the chassis is provided with a track plate, the track plate is provided with an inclined edge, the roller walks along the inclined edge in the process that the first horizontal sliding component moves along the horizontal sliding rail so as to enable the first mounting plate to move up and down relative to the first horizontal sliding component, the device has simple structural design, the track plate is designed at a position close to the outer end of the horizontal sliding rail, namely, when the first horizontal sliding component moves to be close to the outer end of the horizontal sliding rail, the first mounting plate can move upwards relative to the first horizontal sliding component due to the fact that the roller wheels travel along the inclined edge, the fan blades arranged on the first mounting plate with the lifting function can be flush with the fan blades of the adjacent translation fan blade assemblies, so that the flush of the extended desktop is realized; on the contrary, when the table needs to be retracted, the lower crank drives the first horizontal sliding assembly to move inwards along the horizontal sliding rail, the height of the fan blades mounted on the first mounting plate with the lifting function can move downwards along with the downward movement of the first mounting plate, so that the first horizontal sliding assembly is continuously driven to move towards the inner end of the horizontal sliding rail, the overlapping of the adjacent fan blades can be realized, the lifting movement of the fan blades can be simultaneously realized through the integral linear driving process of the fan blades, the structure is simple, the operation is convenient, and the retraction of the fan blades of the deformable table is facilitated.

Further, in order to guarantee that the flabellum of lift flabellum subassembly and translation flabellum subassembly's flabellum parallel and level under the rising state, translation flabellum subassembly includes second horizontal slip subassembly and translation flabellum, second horizontal slip subassembly and last articulate end connection, second horizontal slip subassembly include with horizontal slide rail sliding fit's slider, be equipped with the second mounting panel on the slider, translation flabellum installs on the second mounting panel, the height that highly is greater than the first mounting panel of second mounting panel.

Further, for the installation of better realization first mounting panel and first horizontal slip subassembly, first horizontal slip subassembly include with horizontal slide rail sliding fit's slider, be equipped with the connecting plate on the slider, the one end of connecting plate and the lower crank connection that the drive slider removed, the other end of connecting plate is equipped with the installation piece, the installation piece is with the perpendicular sliding connection of first mounting panel.

Further, for first mounting panel can be for the installation piece vertical slip, the bilateral symmetry of installation piece is equipped with perpendicular draw runner, the symmetry is equipped with the perpendicular slider with perpendicular draw runner sliding fit on the first mounting panel.

In order to improve the lifting stability of the first mounting plate, two vertical sliding strips are respectively arranged on two sides of the mounting block.

In order to facilitate the installation of the vertical sliding strip, the first installation plate is symmetrically provided with extension parts extending towards the direction of the sliding block, and in order to better realize the matching with the track plate, the outer side surfaces of the extension parts are provided with rollers. The opposite face of extension is equipped with the draw runner mounting groove, perpendicular slider fixed mounting is in the draw runner mounting groove, the lateral surface of extension is equipped with the gyro wheel.

In order to improve the reliability of the lifting and horizontal moving of the first mounting plate, the outer side surface of the extension part is provided with two rollers, and the two rollers are horizontally arranged side by side.

In order to enable the roller to smoothly move along the inclined edge on the track plate, the vertical plane of the track plate is parallel to the horizontal sliding rail.

In order to conveniently realize the installation of the track plate, the track plate is fixed on the chassis through screws. It should be noted that there are two track plates, and the two track plates are respectively located at two sides of the first mounting plate.

The utility model has the beneficial effects that: in this technical scheme, adopt central support portion and rotation portion normal running fit's structural design, first installation position and second installation position on the central support portion are used for installing flabellum subassembly and desk mesa respectively, rotation portion can rotate for central support portion, simultaneously after rotation portion and chassis fixed connection, then the chassis can realize rotating for central support portion through rotation portion, and then the rotation through the chassis conveniently realizes the drive to flabellum subassembly, above-mentioned structural design is simple, and simple to operate is swift, conveniently realize the rotatory deformation operation to the table, can to a great extent reduce the manufacturing cost of product.

Drawings

FIG. 1 is a schematic diagram of a first perspective of the present invention;

FIG. 2 is a schematic diagram of a second perspective of the present invention;

FIG. 3 is a schematic view of a table mounted on a table frame according to an embodiment of the present invention;

FIG. 4 is a schematic side view of a table mounted to a table top according to one embodiment of the present invention;

FIG. 5 is a schematic view of another embodiment of the present invention mounted on a table frame;

FIG. 6 is a schematic side view of another embodiment of the present invention mounted on a table;

FIG. 7 is a schematic structural view of another embodiment of the present invention mounted to a table top subassembly;

FIG. 8 is a schematic top view of the present invention;

FIG. 9 is a schematic view of the structure of the table frame of the present invention;

FIG. 10 is a schematic view of the construction of the support plate of the present invention;

FIG. 11 is a schematic view of the construction of the turntable according to the present invention;

FIG. 12 is a schematic view of the structure of the fixing frame of the present invention;

FIG. 13 is a schematic view of a first slew bearing in accordance with the present invention;

FIG. 14 is a schematic structural view of a chassis and horizontal slide rails according to the present invention;

FIG. 15 is a schematic view of the crank throw of the present invention;

FIG. 16 is a schematic view of the crank turntable of the present invention with the upper and lower cranks mounted thereon;

FIG. 17 is a schematic view of a second slew bearing in accordance with the present invention;

FIG. 18 is a schematic structural view of a connecting disc in the present invention;

FIG. 19 is a schematic view of the configuration of the table top of the present invention;

FIG. 20 is a schematic view of the structure of the fan blade assembly of the present invention;

FIG. 21 is a schematic top view of a part assembly of the elevator blade assembly of the present invention;

FIG. 22 is a side view of the first mounting plate of the present invention;

FIG. 23 is a schematic top view of a second mounting plate according to the present invention;

FIG. 24 is a side view of the second mounting plate of the present invention.

In the figure: a support disc 1; a chassis 2; a table top 3; a table frame 4; a first slewing bearing 5; a horizontal slide rail 6; a crank turntable 7; a second slewing bearing 8; a crank connecting portion 9; an upper crank 10; a lower crank 11; translating fan blade assembly 12; an elevator blade assembly 13; a slide 14; lift fan blades 15; a first mounting plate 16; a roller 17; a track plate 18; a beveled edge 19; a connecting plate 20; a mounting block 21; a vertical slide 22; an extension 23; a slide mounting groove 24; the translation fan blades 25; a second mounting plate 26; a turntable 27; a connecting disc 28; a fixed frame 29; a vertical slider 30; a center support portion 31; a rotating portion 32.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The utility model is further described with reference to the following figures and specific embodiments.

Example 1:

the embodiment of fig. 1 to 24 provides a multi-bearing rotary stacking control mechanism for a deformable table, which includes a central support portion 31 fixed on a support plate 1, a rotation portion 32 coaxially and rotatably connected to the central support portion 31, the rotation portion 32 fixedly connected to a chassis 2, a first installation position for installing a fan blade assembly on the central support portion 31 above the chassis 2, and a second installation position for installing a table top 3 on the central support portion 31 above the first installation position.

In this technical scheme, adopt central support portion 31 and rotation portion 32 normal running fit's structural design, first installation position and second installation position on the central support portion 31 are used for installing flabellum subassembly and desk mesa 3 respectively, rotation portion 32 can rotate for central support portion 31, simultaneously after rotation portion 32 and chassis 2 fixed connection, then chassis 2 can realize rotating for central support portion 31 through rotation portion 32, and then conveniently realize the drive to flabellum subassembly through the rotation on chassis 2, above-mentioned structural design is simple, simple to operate is swift, conveniently realize the rotatory deformation operation to the desk, can reduce the manufacturing cost of product to a great extent.

Example 2:

this embodiment is optimized based on embodiment 1 described above.

In order to better realize the support of the chassis 2, the device further comprises a turntable 27 coaxially arranged between the support plate 1 and the chassis 2, and the chassis 2 is rotatably connected with the support plate 1 through the turntable 27.

It should be noted that, according to different requirements of the desktop, the size of the chassis 2 may be different, and in the design of the chassis 2 with a larger size, a better supporting effect on the chassis 2 may be achieved by increasing the number of the rotating discs 27. As shown in fig. 7, an example is shown in which two turntables 27 are provided between the support plate 1 and the chassis 2, and of course, the rotation axes of the turntables 27 and the rotating portion 32 are required to be identical.

Example 3:

this embodiment is optimized based on embodiment 1 described above.

In order to better realize the rotating fit relationship between the table top 3 and the central support part 31, simplify the design structure and reduce the production cost, the second mounting position is an arc-shaped end part arranged at the upper end of the central support part 31, and the arc-shaped end part is rotatably matched with the table top 3.

As shown in fig. 5-7, in this design, the central supporting portion 31 may be a supporting pillar structure made of a wood material, the rotating portion 32 is a rotating ring structure sleeved outside the supporting pillar, the upper end of the supporting pillar may be an arc-shaped end surface, and of course, the lower end surface of the table top 3 is provided with an arc-shaped groove matched with the arc-shaped end surface, thereby realizing the rotating matching relationship between the two, and meanwhile, the supporting pillar made of a wood material can reach the condition that the structural strength meets the requirement, so that the accessory cost is further reduced, and further the production cost of the product is reduced.

Example 4:

this embodiment is optimized based on embodiment 1 described above.

In order to better realize the rotating fit relationship between the table top 3 and the central support portion 31 and facilitate the design of integrated accessories, the central support portion 31 and the rotating portion 32 are integrated into a first rotating bearing 5, the central support portion 31 is an inner ring of the first rotating bearing 5, and the rotating portion 32 is an outer ring of the first rotating bearing 5. The inner ring of the first rotary bearing 5 is fixedly connected with the middle part of the support disc 1 through a fixing frame 29.

Example 5:

this embodiment is optimized based on embodiment 1 described above.

In order to better realize the rotation of the table top 3, the table top 3 is rotatably connected with the second mounting position through a second rotary bearing 8. Specifically, the second rotary bearing 8 is installed at the lower end of the table top 3 through a connecting disc 28, the outer ring of the second rotary bearing 8 is fixed on the connecting disc 28, and the connecting disc 28 is fixed at the lower end of the table top 3.

Example 6:

this embodiment is optimized based on embodiment 1 described above.

The flabellum subassembly is including installing crank carousel 7 on first installation position, a plurality of horizontal slide rails 6 of circumference even setting on chassis 2, translation flabellum subassembly 12 and the lift flabellum subassembly 13 along horizontal slide rail 6 horizontal migration, circumference evenly is equipped with a plurality of crank connecting portion 9 on crank carousel 7, the upper end and the lower extreme of crank connecting portion 9 are connected with the lower crank 11 that drives translation flabellum subassembly 12 along the last crank 10 of horizontal slide rail 6 removal and drive lift flabellum subassembly 13 along horizontal slide rail 6 removal respectively.

Among this technical scheme, supporting disk 1 is installed on table frame 4, play the supporting role, chassis 2 can rotate for supporting disk 1, because circumference evenly is equipped with a plurality of horizontal slide rails 6 on chassis 2, at 2 pivoted in-process on chassis, along with horizontal slide rail 6's rotation, drive translation flabellum subassembly 12 and lift flabellum subassembly 13 simultaneously and remove along horizontal slide rail 6, when translation flabellum subassembly 12 and lift flabellum subassembly 13 simultaneously along horizontal slide rail 6 when outwards removing, then realize the extension of table, when translation flabellum subassembly 12 and lift flabellum subassembly 13 provide along horizontal slide rail 6 when inwards moving, then realize withdrawing of table. The technical scheme has reasonable structure, can realize the extension and the retraction of the fan blades, realizes linkage operation among all components, and has simple and convenient operation.

Example 7:

this embodiment is optimized based on embodiment 6 described above.

For the lift function of better realization lift fan blade subassembly 13, conveniently realize the holistic expansion of table and withdraw, lift fan blade subassembly 13 includes first horizontal slip subassembly and lift fan blade 15, first horizontal slip subassembly and the end connection of lower crank 11, vertical sliding connection has first mounting panel 16 on the first horizontal slip subassembly, lift fan blade 15 installs on first mounting panel 16, be equipped with gyro wheel 17 on the first mounting panel 16, be equipped with track board 18 on the chassis 2, be equipped with hypotenuse 19 on the track board 18, thereby the in-process gyro wheel 17 that first horizontal slip subassembly removed along horizontal slide 6 makes first mounting panel 16 carry out the lift removal for first horizontal slip subassembly through walking along hypotenuse 19.

In the technical scheme, as the horizontal sliding rail 6 is arranged on the chassis 2, the first horizontal sliding component is driven by the lower crank 11 to move linearly along the horizontal sliding rail 6, and the fan blades arranged on the first mounting plate 16 move linearly along with the linear movement of the first horizontal sliding component; the first horizontal sliding component is vertically and slidably connected with a first mounting plate 16, the first mounting plate 16 is provided with a roller 17, the chassis 2 is provided with a track plate 18, the track plate 18 is provided with a bevel edge 19, the roller 17 walks along the bevel edge 19 in the process that the first horizontal sliding component moves along the horizontal sliding rail 6, so that the first mounting plate 16 moves up and down relative to the first horizontal sliding component, the device has simple structural design, the track plate 18 is designed at a position close to the outer end of the horizontal sliding rail 6, namely, when the first horizontal sliding component moves to a position close to the outer end of the horizontal sliding rail 6, the first mounting plate 16 can walk along the bevel edge 19 due to the roller 17, so that the first mounting plate 16 moves up relative to the first horizontal sliding component, and the fan blades mounted on the first mounting plate 16 with the lifting function can be flush with the fan blades of the adjacent translation fan blade components 12, thereby realizing the leveling of the extended desktop; on the contrary, when the table needs to be retracted, the lower crank 11 drives the first horizontal sliding assembly to move inwards along the horizontal sliding rail 6, and then the fan blades mounted on the first mounting plate 16 with the lifting function move downwards along with the downward movement of the first mounting plate 16, so that the overlapping of the adjacent fan blades can be realized in the process of continuously driving the first horizontal sliding assembly to move towards the inner end of the horizontal sliding rail 6, and the lifting movement of the fan blades can be realized simultaneously through the integral linear driving process of the fan blades.

Example 8:

this embodiment is optimized based on embodiment 6 described above.

In order to ensure that the fan blades of the lifting fan blade assembly 13 are flush with the fan blades of the translational fan blade assembly 12 in a lifting state, the translational fan blade assembly 12 comprises a second horizontal sliding assembly and translational fan blades 25, the second horizontal sliding assembly is connected with the end of the upper crank 10, the second horizontal sliding assembly comprises a sliding block 14 in sliding fit with the horizontal sliding rail 6, a second mounting plate 26 is arranged on the sliding block 14, the translational fan blades 25 are mounted on the second mounting plate 26, and the height of the second mounting plate 26 is greater than that of the first mounting plate 16.

Example 9:

this embodiment is optimized based on embodiment 7 described above.

In order to better realize the installation of the first installation plate 16 and the first horizontal sliding assembly, the first horizontal sliding assembly comprises a sliding block 14 in sliding fit with the horizontal sliding rail 6, a connection plate 20 is arranged on the sliding block 14, one end of the connection plate 20 is connected with a lower crank 11 for driving the sliding block 14 to move, an installation block 21 is arranged at the other end of the connection plate 20, and the installation block 21 is vertically and slidably connected with the first installation plate 16.

Example 10:

this embodiment is optimized based on embodiment 9 described above.

In order to enable the first mounting plate 16 to vertically slide relative to the mounting block 21, vertical sliding strips 22 are symmetrically arranged on two sides of the mounting block 21, and vertical sliding blocks 30 which are in sliding fit with the vertical sliding strips 22 are symmetrically arranged on the first mounting plate 16.

In order to improve the lifting stability of the first mounting plate 16, two vertical sliding bars 22 are respectively arranged on two sides of the mounting block 21.

In order to facilitate the installation of the vertical slide 22, the first installation plate 16 is symmetrically provided with an extension 23 extending towards the slider 14, and in order to better realize the matching with the track plate 18, the outer side surface of the extension 23 is provided with a roller 17. The opposite surface of the extension part 23 is provided with a slide bar mounting groove 24, the vertical slide block 30 is fixedly mounted in the slide bar mounting groove 24, and the outer side surface of the extension part 23 is provided with a roller 17.

In order to improve the reliability of the lifting and horizontal movement of the first mounting plate 16, two rollers 17 are arranged on the outer side surface of the extension part 23, and the two rollers 17 are horizontally arranged side by side.

In order to allow the roller 17 to smoothly move along the inclined edge 19 of the track plate 18, the vertical plane of the track plate 18 is parallel to the horizontal sliding rail 6.

In order to facilitate the installation of the track plate 18, the track plate 18 is fixed to the chassis 2 by screws. It should be noted that there are two track plates 18, and the two track plates are respectively located on two sides of the first mounting plate 16.

The utility model is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.

Claims (10)

1. The utility model provides a rotatory stack control mechanism of multiaxis of warping table, its characterized in that: including fixing the central support portion on the supporting disk, coaxial rotation is connected with rotation portion on the central support portion, rotation portion and chassis fixed connection, the top that lies in the chassis on the central support portion is equipped with the first installation position that is used for installing fan blade assembly, the top that lies in first installation position on the central support portion is equipped with the second installation position that is used for installing the desk mesa.

2. The multi-bearing rotary stacking control mechanism of the convertible table as claimed in claim 1, wherein: the chassis is rotatably connected with the supporting plate through the turntable.

3. The multi-bearing rotary stacking control mechanism of the convertible table as claimed in claim 1, wherein: the second installation position is an arc-shaped end part arranged at the upper end of the central support part, and the arc-shaped end part is in running fit with the table top.

4. The multi-bearing rotary stacking control mechanism of the convertible table as claimed in claim 1, wherein: the first slewing bearing of central support portion and rotation portion formula as an organic whole, the central support portion is first slewing bearing's inner circle, rotation portion is first slewing bearing's outer lane.

5. The multi-bearing rotary stacking control mechanism of the convertible table as claimed in claim 1, wherein: the table top is rotatably connected with the second mounting position through a second rotary bearing.

6. The multi-bearing rotary stacking control mechanism of the convertible table as claimed in claim 1, wherein: the fan blade subassembly is including installing crank carousel, the even a plurality of horizontal slide rails that set up on the chassis of circumference on first installation position, along horizontal slide rail horizontal migration's translation fan blade subassembly and lift fan blade subassembly, circumference evenly is equipped with a plurality of crank connecting portion on the crank carousel, the upper end and the lower extreme of crank connecting portion are connected with the lower crank that drives translation fan blade subassembly along the last crank of horizontal slide rail removal and drive lift fan blade subassembly along horizontal slide rail removal respectively.

7. The multi-bearing rotary stacking control mechanism of the convertible table as claimed in claim 6, wherein: the lift flabellum subassembly includes first horizontal slip subassembly and lift flabellum, first horizontal slip subassembly and lower articulate end connection, perpendicular sliding connection has first mounting panel on the first horizontal slip subassembly, lift flabellum installs on first mounting panel, be equipped with the gyro wheel on the first mounting panel, be equipped with the track board on the chassis, be equipped with the hypotenuse on the track board, thereby the in-process gyro wheel that first horizontal slip subassembly removed along horizontal slide rail makes first mounting panel carry out the lift displacement for first horizontal slip subassembly through walking along the hypotenuse.

8. The multi-bearing rotary stacking control mechanism of the convertible table as claimed in claim 6, wherein: the translation flabellum subassembly includes second horizontal slip subassembly and translation flabellum, second horizontal slip subassembly and last articulate end connection, second horizontal slip subassembly include with horizontal slide rail sliding fit's slider, be equipped with the second mounting panel on the slider, translation flabellum installs on the second mounting panel, the height that highly is greater than the first mounting panel of second mounting panel.

9. The multi-bearing rotary stacking control mechanism of the convertible table as claimed in claim 7, wherein: the first horizontal sliding assembly comprises a sliding block in sliding fit with the horizontal sliding rail, a connecting plate is arranged on the sliding block, one end of the connecting plate is connected with a lower crank which drives the sliding block to move, an installation block is arranged at the other end of the connecting plate, and the installation block is in vertical sliding connection with the first installation plate.

10. The multi-bearing rotary stacking control mechanism of the convertible table as claimed in claim 9, wherein: the bilateral symmetry of installation piece is equipped with perpendicular draw runner, the symmetry is equipped with the perpendicular slider with perpendicular draw runner sliding fit on the first mounting panel.

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