CN108451171B - Rotating variable round table - Google Patents

Abstract

The invention relates to a rotary and variable round table, which includes a table top and table feet, and is characterized in that: the table top includes a circular table board, a circular bottom board, an even number of fan-shaped table boards, and is used for folding and unfolding the fan-shaped table boards. The folding device; the circular table boards are arranged in parallel on the circular base plate, the even numbered fan-shaped table boards are evenly arranged between the circular table board and the circular base board, and the even numbered fan-shaped table boards are folded into two layers of staggered fan-shaped Table, the even number of fan-shaped table boards are unfolded and spliced into a complete circular fan-shaped table board. The fan-shaped table board is fixed on the circular base plate through the folding device, and the circular table board is driven to connect with the folding device. Boards fold and unfold. The design is reasonable, and the size of the desktop can be changed by rotating the circular table plate. The structure is simple, and the combination and installation are convenient and fast.

Description

Rotating variable round table

technical field

The invention relates to the field of home furnishing, in particular to a rotary variable round table.

Background technique

At present, when a family usually eats, there are usually 3 to 5 people, and only a fixed small round table is needed. However, for holidays or dinners with relatives and friends, a round table with a large diameter and a small turntable is required. At present, we can only purchase large-diameter table tops and small-diameter turntables separately, and place them on the original table for use. However, the storage of large-diameter table tops is not very convenient, especially for urban residents, whose living space is limited. Even if there is a place to put them, It also affects the aesthetics of the interior.

Patent application number 201510426717.7 provides a folding dining table with variable diameter, which can realize simultaneous dining by multiple people, but its structure is complex and difficult to assemble and install.

Contents of the invention

In order to solve the above problems, the present invention proposes a rotating and variable round table, which is reasonable in design, and the size of the table can be changed by rotating the circular table plate. The structure is simple, and the combination and installation are convenient and fast.

Technical scheme of the present invention:

A rotary variable round table, which includes a table top and table legs, characterized in that: the table top includes a circular table board, a circular bottom board, an even number of fan-shaped table boards, and a folding device for folding and unfolding the fan-shaped table boards .

The circular table boards are arranged in parallel on the circular bottom board, and the even-numbered fan-shaped table boards are evenly arranged between the circular table board and the circular bottom board, and the even-numbered fan-shaped table boards are folded into two layers of interlaced fan-shaped table boards. The fan-shaped table boards are unfolded and spliced into a complete circular fan-shaped table board. The fan-shaped table boards are fixed on the circular bottom plate through the folding device. The circular table boards are driven and connected to the folding device. .

The folding device includes a transmission rod, a fixed slide rail, a lifting carriage, a rotating shaft, and a transmission disc, a lifting disc and a bearing base arranged in parallel from top to bottom. The bearing base is fixedly mounted on a circular base plate, and the rotating shaft rotates vertically through the bearing. Installed on the bearing base, the top of the rotating shaft passes through the lifting plate and the transmission plate in turn, the top of the rotating shaft is connected with the circular table, there is a gap between the rotating shaft and the lifting plate, the rotating shaft is fixedly connected with the driving plate, and the upper and outer sides of the bearing base are uniformly arranged There are a number of uprights, the uprights pass through the lifting plate, a linear bearing is arranged between the upright and the lifting plate, the linear bearing is fixedly installed on the lifting plate, and a spring is set on the upright, and the two ends of the spring are respectively supported on the bearing base and the lifting plate. The fixed slide rails are radially fixed and installed on the circular bottom plate, and the lifting slides are fixed radially and radially on the lifting plate. The fixed slide rails and the lifting slides alternate with each other. One-to-one correspondence between the boards, the fan-shaped table boards are slidably connected to the fixed slide rail and the lifting carriage through the sliders, and the fan-shaped table boards are respectively hinged to the drive disc through the transmission rod, and the drive disc is rotated, and the drive rod pushes the fan-shaped table board along the fixed slide rail synchronously Move with the lifting carriage to fold and unfold. There are several trapezoidal wedges evenly arranged around the bottom of the lifting plate, and there are several force arms on the rotating shaft. The force arms correspond to the trapezoidal wedges one by one. The slope of the trapezoidal wedge slides, pushing the trapezoidal wedge to push the lifting plate, the lifting plate is at the upper limit position, all the fan-shaped tables are on the same horizontal plane, the lifting plate is at the lower limit position, and the fan-shaped table is divided into upper and lower layers.

Rotate the circular table, the circular table drives the rotating shaft to rotate, and the transmission plate connected with the rotating shaft rotates, and the fan-shaped table is driven to slide outward along the fixed slide rail and the lifting carriage through the transmission rod, and the moment arm set on the rotating shaft Rotate, the force arm slides upward along the slope of the trapezoidal wedge to push the lifting plate and the elastic force of the spring, the lifting plate moves up, and the lifting plate drives the fan-shaped table on the lower floor to move to realize the fan-shaped table.

Reverse rotation of the circular table, the circular table drives the rotating shaft to rotate in the opposite direction, and the transmission plate connected to the rotating shaft rotates in the opposite direction, and the fan-shaped table is driven to slide inward along the fixed slide rail and the lifting carriage respectively through the transmission rod, and simultaneously set The force arm on the rotating shaft rotates, and the force arm slides down along the slope of the trapezoidal wedge. The lifting plate presses the spring to move down under the action of its own weight, and the lifting plate drives the fan-shaped table on the lower floor to move down to realize the folding of the fan-shaped table.

To further improve and refine the above technical solution, the transmission disc and the lifting carriage are integrally cut and formed.

To further improve and refine the above technical solutions, considering that the fan-shaped table has a certain thickness, the complete circular fan-shaped table cannot be folded directly, and the upper and lower layers of the fan-shaped table must be firstly layered. We design the described When the rotation of the transmission disc drives the fan-shaped table boards to expand to the limit position, there is a gap between the fan-shaped table boards, so that the forward rotation of the drive disc drives the fan-shaped table boards that have been folded to the limit position to expand to the limit position first, and then continue to rotate the drive disc Only when the fan-shaped table is folded can it be spliced into a ring-shaped fan-shaped table, and the circular fan-shaped table that is spliced by the reverse rotation of the transmission disc is also unfolded to the limit position first, and then the drive disc is continued to drive the fan-shaped table to be folded to the limit position, thereby vacating the distance and time required for the upper and lower separation of the fan-shaped table, and then cooperate with the size specification of the trapezoidal wedge to set according to the lifting requirements of the lifting plate when the fan-shaped table is folded and unfolded, to ensure the smooth completion of the fold.

To further improve and refine the above technical solution, the top of the rotating shaft is provided with a card slot that runs through the outer peripheral surface of the rotating shaft, the bottom of the circular table is provided with a circular groove, the side wall of the circular groove is provided with a spring positioning pin, and the spring positioning pin The circular table board protrudes through the side wall of the circular groove. The circular table board is rotatably mounted on the rotating shaft through the bearing. The top of the rotating shaft extends into the circular groove of the circular table board. The card slot is connected, when the size of the desktop needs to be adjusted, press the spring positioning pin, the elastic positioning pin is stuck in the slot on the top of the rotating shaft, and the circular table can be rotated to adjust the size of the desktop. After the adjustment is completed, release the elastic positioning pin , the elastic positioning pin resets automatically, loosens the circular table, and rotates the circular table at this time, the table rotates around the shaft under the action of the bearing, and the shaft does not move due to the action of the transmission disc and the fan-shaped table connected to the transmission disc. will follow.

To further improve and refine the above technical solution, the top of the rotating shaft is provided with a slot that runs through the outer peripheral surface of the rotating shaft, the circular bottom plate is covered with a side wall, and a number of bayonet pins are evenly arranged on the inner wall of the side wall, corresponding to The outer periphery of the circular bottom plate is provided with an inclined chute, and pin grooves are respectively arranged on the upper and lower sides of the chute. The bayonet pin is located in the inclined chute. When the side panel is rotated, the bayonet slides along the chute, and the bayonet pin is located on the upper side. In the pin groove, the side panel is placed on the round table to prevent the circular table from rotating. The bayonet pin is located in the lower side pin groove, and the top of the side panel is located under the lower fan-shaped table. The overall shape of the round table is more beautiful, and at the same time In order to prevent the entry of external debris and affect the normal operation of the folding device, a disassembly opening is also provided at the bayonet position corresponding to the side panel on the outer periphery of the circular bottom plate, so as to facilitate the disassembly of the side panel.

To further improve and refine the above-mentioned technical solution, chamfers are arranged symmetrically at the two inner corners of the fan-shaped table on the upper floor after being folded, and openings are symmetrically provided at the two inner corners of the fan-shaped table on the lower floor after being folded, and when it is folded to the limit position, The chamfers of the upper fan-shaped table are fitted together, and the openings of the lower fan-shaped table are spliced into grooves, and the grooves are stuck on the outside of the slider of the upper fan-shaped table. This design ensures that the fan-shaped table can be maximized. Folding increases the upper limit of the length design of the fan-shaped table, and the diameter of the large round table formed by the fan-shaped table is larger.

To further improve and refine the above-mentioned technical solution, the sides of two adjacent fan-shaped table boards of the complete circular fan-shaped table board are provided with notches and protrusions that engage with each other. The complete circular fan-shaped table structure is more stable.

To further improve and refine the above-mentioned technical solution, a turntable balance wheel is arranged on the inner upper surface of the fan-shaped table on the upper floor after being folded to support the stable rotation of the circular table.

To further improve and refine the above-mentioned technical solution, a bearing is set on the arm, and the bearing rolls along the slope of the trapezoidal wedge.

To further improve and refine the above technical solution, a buffer and noise reduction pad is provided at the bottom of the transmission disc to play the role of buffer and noise reduction.

Compared with the prior art, the rotary and variable round table of the present invention is easy to operate and elegant in appearance. It only needs to operate the elastic positioning pin and rotate the circular table plate to realize the enlargement and reduction of the tabletop. When it becomes larger, it can be It can be used by many people to eat at the same time, and when it becomes small, it can be filled with a small space for daily use in the family; at the same time, when the size does not need to be adjusted, the circular table can be used in rotation, the structure is simple, and it is convenient to assemble and install.

Description of drawings

Fig. 1 is a schematic diagram of the structure when the rotating and variable round table is folded.

Fig. 2 is a schematic diagram of the structure when the rotary variable round table is unfolded.

Fig. 3 is a top view when the rotary variable round table is unfolded.

Fig. 4 is a schematic structural diagram of a circular table plate of a rotary variable round table.

Fig. 5 is a partial top view of the rotary variable round table.

Fig. 6 is a schematic diagram of a partial structure of a rotating and variable round table folding device.

Fig. 7 is a schematic diagram of unfolding and collapsing of fan-shaped table boards.

Fig. 8 is a diagram showing the relationship between the moment arm and the trapezoidal wedge of the rotary variable round table.

In the figure, circular table 01 circular bottom plate 04 fan-shaped table 02 retracting device 03; the circular table 01 is arranged in parallel with transmission rod 05 fixed slide rail 06 lifting carriage 07 rotating shaft 08 transmission plate 09 lifting plate 10 bearing base 11 column 12 linear bearing 13 spring 14 trapezoidal wedge 15 arm 16 side panel 17 bearing 18 spring positioning pin 19 circular groove 20 turntable balance wheel 21 buffer noise reduction pad 22.

Detailed ways

As shown in Figures 1-8, a rotating and variable round table includes a table top and table feet. The folding device 03 for folding and unfolding the board 02; the circular table board 01 is arranged in parallel above the circular bottom board 04, and the even fan-shaped table boards 02 are evenly arranged between the circular table board 01 and the circular bottom board 04. The fan-shaped table boards 04 are folded into two layers of interlaced fan-shaped table boards, and the even-numbered fan-shaped table boards 04 are unfolded and spliced to form a complete circular fan-shaped table board. Shaped table 01 drives and connects gathering device 03, and rotating circular table 01 controls fan-shaped table 04 to gather and expand; Described gathering device 03 comprises transmission rod 05, fixed slide rail 06, lifting carriage 07, rotating shaft 08 and by The transmission plate 09, the lifting plate 10 and the bearing base 11 are arranged in parallel from top to bottom. The bearing base 11 is fixedly installed on the circular bottom plate 04, and the rotating shaft 08 is installed on the bearing base 11 through the vertical rotation of the bearing. The top of the rotating shaft 08 passes through the lifting Disc 10, transmission disc 09, the top of the rotating shaft 09 is connected to the circular table 01, there is a gap between the rotating shaft 08 and the lifting disc 10, the rotating shaft 08 is fixedly connected to the driving disc 09, and the upper and outer sides of the bearing base 11 are uniformly arranged with a number of columns 12. The column 12 passes through the lifting plate 10, and a linear bearing 13 is arranged between the column 12 and the lifting plate 10. The linear bearing 13 is fixedly installed on the lifting plate 10, and a spring 14 is set on the column 12, and the two ends of the spring 14 are respectively pressed. On the bearing base 11 and the lifting disc 10, the fixed slide rail 06 is radially fixedly installed on the circular base plate 04, and the lifting carriage 07 is fixedly installed radially on the lifting disc 10, and the fixed slide rail 06 and the lifting slide The racks 07 alternate with each other, the fixed slide rails 06 and the lifting slides 07 correspond to the fan-shaped table boards 02 respectively, and the fan-shaped table boards 02 slide and connect the fixed slide rails 06 and the lifting slide racks 07 through sliders respectively, and the fan-shaped table boards 02 respectively pass through The transmission rod 05 is hinged with the transmission disc 09, and when the transmission disc 09 is rotated, the transmission rod 05 pushes the fan-shaped table 02 to move synchronously along the fixed slide rail 06 and the lifting carriage 07 for folding and unfolding. Wedge 15, rotating shaft 08 is provided with several moment arms 16, and moment arm 16 corresponds to trapezoidal wedge 15 one by one, moment arm 16 rotates with rotating shaft, moment arm 16 slides along the slope of trapezoidal wedge 15, promotes trapezoidal wedge 15 Push the lifting plate 10, the lifting plate 10 is located at the upper limit position, all the fan-shaped table boards 02 are on the same horizontal plane, the lifting plate 10 is located at the lower limit position, and the fan-shaped table board 02 is divided into upper and lower layers; considering that the fan-shaped table board 02 has With a certain thickness, the spliced and complete circular fan-shaped table boards cannot be folded directly. The fan-shaped table board 02 needs to be layered up and down first. When the transmission plate 09 we designed rotates to drive the fan-shaped table board 02 to expand to the limit position, the fan-shaped table board 02 There is a gap between the table boards 02, so that the fan-shaped table boards that are folded to the limit position are driven by the forward rotation of the transmission disc 09 to expand to the limit position first, and then continue to rotate the drive disc to drive the fan-shaped table boards to be folded to splice into a circular fan-shaped table board Similarly, the counter-rotating drive disc 09 drives the spliced circular fan-shaped table to expand to the limit position first, and then continues to rotate the drive disc to drive the fan-shaped table to close to the limit position, thereby freeing up the space required for the upper and lower separation of the fan-shaped table 02 The distance and time, combined with the size specifications of the trapezoidal wedge 14, are set according to the lifting requirements of the lifting plate when the fan-shaped table is folded and unfolded, so as to ensure the smooth completion of the fold; Card slot, the bottom of the circular table 01 is provided with a circular groove 20, the side wall of the circular groove is provided with a spring positioning pin 19, the spring positioning pin 19 extends out of the circular table 01 through the side wall of the circular groove, and the circular table 01 passes through The bearing is rotatably installed on the rotating shaft 08, and the top of the rotating shaft 08 extends into the circular groove 20 of the circular table, and the elastic positioning pin extends into the circular groove 20 and engages with the slot on the top of the rotating shaft 08. When the size of the desktop needs to be adjusted, press The spring locating pin 19 and the elastic locating pin 19 are stuck in the slot on the top of the rotating shaft 08, and the size of the desktop can be adjusted by rotating the circular table. At this time, the circular table 01 is rotated, and the circular table 01 rotates around the rotating shaft 08 under the action of the bearing, and the rotating shaft 08 does not move due to the drive plate 09 and the fan-shaped table 02 connected with the drive plate 09. It will turn around; the outer circumference of the circular bottom plate 01 is covered with side panels 17, and the inner walls of the side panels 17 are evenly provided with a number of bayonet pins, and the outer circumference of the corresponding circular bottom plate is provided with inclined chutes, and the upper and lower sides of the chute are respectively A pin groove is provided, the bayonet pin is located in the inclined chute, the side wall 17 is rotated, the bayonet slides along the chute, the bayonet is located in the pin groove on the upper side, and the side wall 17 is pushed against the circular table 01 to avoid The circular table plate rotates, the bayonet pin is located in the pin groove on the lower side, the top of the side panel 17 is located below the lower fan-shaped table plate 02, and the outer circumference of the circular bottom plate 04 corresponds to the position of the bayonet pin of the side wall plate 17. There is also a disassembly opening , the overall shape of the round table is more beautiful, and at the same time, it can prevent the entry of external debris and affect the normal operation of the folding device 03; after being folded, the two inner corners of the fan-shaped table 02 on the upper layer are symmetrically chamfered, and the fan-shaped table on the lower layer is folded. 02 There are symmetrical openings at the two corners on the inner side. When it is folded to the extreme position, the chamfers of the upper fan-shaped table will fit together, and the openings of the lower fan-shaped table will be spliced to form a groove, and the groove will be stuck in the sliding of the upper fan-shaped table. This design ensures that the fan-shaped table 02 can be folded to the greatest extent, which increases the upper limit of the design of the fan-shaped table 02, and the diameter of the large round table formed by the fan-shaped table 02 is larger; There are interlocking gaps and protrusions on the sides of the adjacent two fan-shaped table boards. Through the interlocking gaps and protrusions, the structure of the complete circular fan-shaped table board is more stable; after being folded, the fan-shaped table board on the upper layer 02 A turntable balance wheel is arranged on the upper surface of the inner side to support the smooth rotation of the circular table; the bearing 18 is set on the arm 16, and the bearing 18 rolls along the slope of the trapezoidal wedge; Noise Pad 21.

Due to the limitation of written expression, there are objectively unlimited specific structures. For those of ordinary skill in the art, without departing from the principle of the present invention, some improvements, modifications or changes can also be made, or Combining the above-mentioned technical features in an appropriate manner; these modifications, changes or combinations, or directly applying the idea and technical solution of the invention to other occasions without improvement shall be regarded as the protection scope of the present invention.

Claims (1)

1. A rotary variable round table, which includes a desktop and table feet, is characterized in that: the desktop includes a circular table, a circular base, an even number of fan-shaped table, and a handle for folding and unfolding the fan-shaped table. retracting device; The circular table boards are arranged in parallel on the circular bottom board, and the even-numbered fan-shaped table boards are evenly arranged between the circular table board and the circular bottom board, and the even-numbered fan-shaped table boards are folded into two layers of interlaced fan-shaped table boards. The fan-shaped table boards are unfolded and spliced into a complete circular fan-shaped table board. The fan-shaped table boards are fixed on the circular bottom plate through the folding device. The circular table boards are driven and connected to the folding device. ; The folding device includes a transmission rod, a fixed slide rail, a lifting carriage, a rotating shaft, and a transmission disc, a lifting disc and a bearing base arranged in parallel from top to bottom. The bearing base is fixedly mounted on a circular base plate, and the rotating shaft rotates vertically through the bearing. Installed on the bearing base, the top of the rotating shaft passes through the lifting plate and the transmission plate in turn, the top of the rotating shaft is connected with the circular table, there is a gap between the rotating shaft and the lifting plate, the rotating shaft is fixedly connected with the driving plate, and the upper and outer sides of the bearing base are uniformly arranged There are a number of uprights, the uprights pass through the lifting plate, a linear bearing is arranged between the upright and the lifting plate, the linear bearing is fixedly installed on the lifting plate, and a spring is set on the upright, and the two ends of the spring are respectively supported on the bearing base and the lifting plate. The fixed slide rails are radially fixed and installed on the circular bottom plate, and the lifting slides are fixed radially and radially on the lifting plate. The fixed slide rails and the lifting slides alternate with each other. One-to-one correspondence between the boards, the fan-shaped table boards are slidably connected to the fixed slide rail and the lifting carriage through the sliders, and the fan-shaped table boards are respectively hinged to the drive disc through the transmission rod, and the drive disc is rotated, and the drive rod pushes the fan-shaped table board along the fixed slide rail synchronously Move with the lifting carriage to fold and unfold. There are several trapezoidal wedges evenly arranged around the bottom of the lifting plate, and there are several force arms on the rotating shaft. The force arms correspond to the trapezoidal wedges one by one. The slope of the trapezoidal wedge slides, pushing the trapezoidal wedge to push the lifting plate, the lifting plate is at the upper limit position, all the fan-shaped tables are on the same horizontal plane, the lifting plate is at the lower limit position, and the fan-shaped table is divided into upper and lower layers; The transmission disc and the lifting carriage are integrally cut and formed; When the rotation of the transmission disc drives the fan-shaped table boards to expand to the limit position, there is a gap between the fan-shaped table boards, and the size specification of the trapezoidal wedge is set according to the lifting requirements of the lifting plate when the fan-shaped table boards are folded and unfolded; The top of the rotating shaft is provided with a card slot that runs through the outer peripheral surface of the rotating shaft, the bottom of the circular table is provided with a circular groove, the side wall of the circular groove is provided with a spring positioning pin, and the spring positioning pin extends out of the circular table through the side wall of the circular groove , the circular table is rotatably mounted on the rotating shaft through bearings, and the top of the rotating shaft extends into the circular groove of the circular table; The outer periphery of the circular bottom plate is provided with an inclined chute, and the circular bottom plate is set with a side panel, and the inner wall of the side panel is uniformly provided with a number of bayonet pins, which correspond to the inclined chute on the outer periphery of the circular bottom plate. There are pin grooves on the upper and lower sides of the groove, the bayonet is located in the inclined chute, the side wall is rotated, the bayonet slides along the chute, the bayonet is located in the upper side pin groove, and the side wall is pushed against the circular table , to prevent the round table from rotating, the bayonet pin is located in the pin groove on the lower side, and the top of the side wall is located under the fan-shaped table on the lower layer. A disassembly opening is also provided at the bayonet position corresponding to the side panel on the outer periphery of the circular bottom plate, so as to facilitate the disassembly of the side panel; After being folded, the inner side corners of the fan-shaped table on the upper layer are symmetrically provided with chamfers, and after being folded, the inner side corners of the fan-shaped table on the lower layer are symmetrically provided with openings. , the openings of the lower fan-shaped table are spliced to form a groove, and the groove is stuck on the outside of the slider of the upper fan-shaped table; Two adjacent fan-shaped table sides of the complete circular fan-shaped table are provided with positioning pins correspondingly; After being folded, a turntable balance wheel is arranged on the inner upper surface of the fan-shaped table on the upper floor; A bearing is set on the arm, and the bearing rolls along the slope of the trapezoidal wedge; A cushioning noise reduction pad is arranged at the bottom of the transmission disc.