CN211833393U

CN211833393U - Liftable and rotatable dining table

Info

Publication number: CN211833393U
Application number: CN202020307446.XU
Authority: CN
Inventors: 赵松; 赵明贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2020-11-03
Anticipated expiration: 2030-03-13

Abstract

The utility model discloses a liftable and rotatable dining table, which comprises a dining table body, wherein the dining table body comprises a table top and table legs, and further comprises a supporting base, a supporting shaft and a rotary lifting device, the rotary lifting device comprises a rotary table top, a turntable, a rotary mechanism and a lifting mechanism, an opening matched with the rotary table top is arranged at the central position of the table top, the supporting base is arranged at the back of the table top and is positioned below the opening, the lower end of the supporting shaft is fixed in the supporting base, the lower end of the lifting mechanism is arranged in the supporting base, the turntable is arranged at the upper end of the lifting mechanism, and the rotary mechanism is arranged in the turntable; the turntable can be driven to rotate around the supporting shaft and move up and down under the action of the lifting mechanism; the rotating table top arranged on the turntable is driven to synchronously move through the rotating and lifting motion of the turntable. Adopt the dining table, have reasonable in design, its simple structure, convenient operation, stability is good, nimble rotation, its practicality is strong, safe practical, is fit for using widely.

Description

Liftable and rotatable dining table

Technical Field

The utility model relates to a dining table technical field in the daily life field, specifically speaking are liftable and rotatory dining table.

Background

The dining table is one of the essential home furnishings in families and restaurants, is an important home furnishing facility in the life of people, and along with the continuous improvement of the living standard of substances, the use requirements of various articles are improved day by day, besides paying attention to the attractive appearance, the functional performance is emphasized, the traditional dining table cannot meet the requirements of people, and people begin to search for a more comfortable home furnishing facility.

The dining table is divided into a rotatable dining table and a fixed dining table according to whether the tabletop can rotate, the rotatable dining table in the prior art is generally characterized in that a rotatable turntable is placed on the tabletop, a rotatable tabletop is placed on the turntable, the rotatable tabletop and the turntable can be fixed or movable, and the problem of inconvenience in long-distance dish clamping is basically solved. But has the following disadvantages in the using process: firstly, when people eat hot pots in winter, the rotary table top and the rotary table are generally taken away, then hot pots or induction cookers are placed on the table top, and because the hot pots are too much higher than the table top, dishes in the pots cannot be observed, and people need to stand up when eating food, the hot pots are extremely inconvenient to use; in order to use the chafing dish conveniently, many restaurants have to be specially equipped with chafing dish tables; secondly, when the rotary table top needs to be lifted for use, if the rotary table top is used as a cake table in the past birthday, the birthday effect is influenced; thirdly, the storage is needed to be carefully carried out when the rotary turntable is not used, which brings great disadvantages to the storage; fourthly, the rotating table top has poor stability and is easy to incline in the rotating process.

Along with the continuous improvement of the living standard of people, in order to bring convenience to diners, an automatic rotating dining table appears to meet the diversified demands of the diners, and the diners feel elegant and comfortable. However, the existing automatic revolving dining table is generally controlled by adopting an electric control mode, and the electric control mode also has the following disadvantages in the using process: firstly, an external power supply is needed, electric shock or fire accidents are easy to happen, and potential safety hazards exist; secondly, because the electric wires are arranged around the dining table, if the electric wires are not placed well, the electric wires are easy to mix the old or children, and safety threats are brought to diners; thirdly, when power failure occurs, the dining table cannot be used. Therefore, the existing dining table needs to be improved, and the dining table with a simple structure and convenient operation and use is provided to meet the diversified requirements of people.

Therefore, aiming at the defects of the prior rotary dining table in the using process, the dining table with simple structure, flexible rotation and strong practicability needs to be designed, thereby being convenient for people to use and bringing convenience to diners.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to the problem that exists among the background art to rotary table top operates inconvenient technical problem in solving current dining table, provides a simple structure, rotates in a flexible way, and the stationarity is good, operation and convenient to use can realize automatic rising and rotatory dining table through manual operation, in order to satisfy people diversified demand, specifically speaking is a liftable and rotatory dining table.

For solving the technical problem, the utility model discloses the technical scheme who adopts does: a lifting and rotating dining table comprises a dining table body, the dining table body comprises a table top and table legs for supporting the table top, and further comprises a supporting base, a supporting shaft and a rotating and lifting device, the rotating and lifting device comprises a rotating table top, a turntable, a rotating mechanism and a lifting mechanism, an opening which is communicated from top to bottom is arranged at the central position of the table top, the opening is matched with the appearance structure of the rotating table top and can accommodate the rotating table top, the supporting base is arranged at the back of the table top and is positioned below the opening, the lower end of the supporting shaft is fixed in the supporting base, the lower end of the lifting mechanism is arranged in the supporting base, the turntable is arranged at the upper end of the lifting mechanism, the rotating mechanism is arranged in the turntable, a through hole which is communicated from top to bottom is arranged at the central position of the turntable, the aperture of the through hole is larger than the outer diameter of the supporting shaft, the upper end of the supporting shaft extends to the upper part of the turntable through the through hole, a blind hole matched with the supporting shaft is formed in the center of the rotary table top, the rotary table top is detachably connected with the supporting shaft through the blind hole, and the rotary table top can rotate on the turntable along the supporting shaft under the action of the rotary mechanism; the turntable can be driven to rotate and lift around the support shaft above the support base under the action of the lifting mechanism; through the rotary lifting motion of the rotary disc, the rotary table top arranged on the rotary disc can be driven to synchronously move along with the rotary disc, so that the rotary table top is lifted at the opening.

Furthermore, the lifting and rotating dining table of the present invention, wherein the lifting mechanism comprises a plurality of connecting members and a pull rod, the connecting members comprise a first hinge, a first connecting shaft, a connecting rod, a second hinge and a second connecting shaft, one side of the first hinge is fixed in the supporting base, one side of the second hinge is fixed on the bottom surface of the rotating disc, the other side of the first hinge and the second hinge is respectively provided with a connecting hole corresponding to the first connecting shaft and the second connecting shaft, one end of the connecting rod is connected with the first hinge by the first connecting shaft passing through the corresponding connecting hole, the other end of the connecting rod is connected with the second hinge by the second connecting shaft passing through the corresponding connecting hole, and the two ends of the connecting rod form a hinge type linkage structure by the corresponding first connecting shaft and the second connecting shaft, the connecting rod can rotate 360 degrees along with the corresponding first hinge and the second hinge through the first connecting shaft and the second connecting shaft; one end of the pull rod is fixed on the bottom surface of the turntable, and the other end of the pull rod is a free end which extends to the outer side of the turntable and is positioned below the table top in the dining table body; under the action of external force, the pull rod drives the rotary table to surround the supporting shaft to rotate, and in the rotating process of the rotary table, the first hinge drives the connecting rod to synchronously rotate and drive the second hinge to link through the connecting rod under the action of the first connecting shaft and the second connecting shaft, so that the rotary table is lifted in the rotating process.

Furthermore, the lifting and rotating dining table of the present invention, wherein the lifting mechanism comprises a plurality of connecting members and a pull rod, the connecting members comprise a first universal joint, a second universal joint and a connecting shaft, the first universal joint is disposed in the supporting base, the second universal joint is disposed on the bottom surface of the turntable, two ends of the connecting shaft are respectively connected to the corresponding first universal joint and the second universal joint, and the connecting shaft can realize 360-degree rotation through the first universal joint and the second universal joint; one end of the pull rod is fixed on the bottom surface of the turntable, and the other end of the pull rod is a free end which extends to the outer side of the turntable and is positioned below the table top in the dining table body; under the action of external force, the pull shaft drives the turntable to surround the supporting shaft to rotate, and in the rotating process of the turntable, the first universal joint drives the connecting shaft to synchronously rotate and move, and the second universal joint drives the connecting shaft to be linked, so that the turntable can be lifted in the rotating process.

Further, a liftable and rotatory dining table, wherein the connecting piece is equipped with threely, three connecting piece be cyclic annular evenly distributed in support between base and the carousel.

Furthermore, the dining table of the present invention is capable of lifting and rotating, wherein the rotating table top and the turntable are both arranged in a circular structure, and the outer diameter of the turntable is smaller than the outer diameter of the rotating table top; the rotating mechanism consists of a supporting ring and a rotating ring, the supporting ring is annularly arranged at the outer edge of the top surface of the turntable, the rotating ring is annularly and coaxially arranged on the top surface of the turntable together with the supporting ring, the rotating ring is arranged in the supporting ring and meshed with the supporting ring, and the rotating ring can rotate on the turntable along with the supporting ring; the rotating ring is abutted and contacted with the back surface of the rotating table top, so that the rotating table top can rotate around the supporting shaft on the rotating disc.

Further, a liftable and rotatory dining table, wherein still be equipped with a plurality of elastomeric support columns on the rotatory ring, a plurality of elastomeric support columns use the back shaft as the center, evenly distributed in rotatory ring is last.

Further, a liftable and rotatory dining table, wherein still inlay in the through-hole one with back shaft assorted abrasionproof axle sleeve, the carousel passes through rotary lifting mechanism and drives its rotary motion in-process, the abrasionproof axle sleeve is passed to the upper end of back shaft, can make it extend to the carousel top.

Further, a dining table that can rise, fall and rotate, wherein the support base comprises a plurality of bracing pieces and a backup pad, the upper end of a plurality of bracing pieces with the back fixed connection of desktop, its lower extreme all with be located backup pad fixed connection of opening below.

Further, the utility model discloses a dining table that can rise, fall and rotate, wherein desktop and rotatory desktop all adopt timber, organic glass or marble material preparation.

Further, the utility model discloses a dining table that can go up and down and rotate, wherein the desktop of dining table body is any one structure in square, circular or the ellipse.

Adopt a liftable and rotatory dining table, because desktop central point puts the department be equipped with rotatory desktop assorted opening, and the back of desktop is equipped with supports base and back shaft it is equipped with the carousel to support the base through elevating system be equipped with rotary mechanism in the carousel, through elevating system can drive the carousel and realize going up and down rotating the in-process to can drive rotatory desktop through rotary mechanism and rotate on the carousel, solved the problem that fixed desktop can't realize local lift. When the rotary table top does not need to be lifted in the using process, the rotary table top is positioned in the opening, and the upper surface of the rotary table top and the table top are positioned on the same plane, so that the rotary table top can be used as a common dining table; when the rotating table top needs to be lifted or rotated, the lifting mechanism is rotated by hands under the action of external force, the turntable can be controlled to move up and down, the lifting function of the turntable is realized, then the rotating table top is rotated by hands, and the purpose that the rotating table top rotates on the turntable can be achieved under the action of the rotating mechanism, so that the using function of the dining table is expanded, users around the dining table can have meals conveniently, and convenience is brought to dining.

To sum up, the dining table have reasonable in design, its simple structure, convenient to use during the operation, stability is good, and nimble rotation, its practicality is strong, safe practical, is fit for using widely.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a partial structure of the present invention;

FIG. 3 is a schematic partial cross-sectional view of FIG. 2;

FIG. 4 is a schematic view of a partial structure of the present invention;

FIG. 5 is a schematic partial cross-sectional view of FIG. 4;

FIG. 6 is a state diagram of the rotating table top when the utility model is used;

fig. 7 is a state diagram of the rotating table top descending during the use of the utility model.

Shown in the figure: 1-tabletop, 2-table feet, 3-supporting base, 31-supporting rod, 32-supporting plate, 4-supporting shaft, 5-rotating tabletop, 51-blind hole, 6-turntable, 61-through hole, 62-supporting ring, 63-elastic supporting column, 7-opening, 8-rotating mechanism, 81-supporting ring, 82-rotating ring, 83-elastic supporting column, 9-lifting mechanism, 91-pull rod, 92-first hinge, 93-first connecting shaft, 94-connecting rod, 95-second hinge, 96-second connecting shaft, 97-first universal joint, 98-second universal joint, 99-connecting shaft and 10-abrasion-proof shaft sleeve.

Detailed Description

In order to more fully explain the utility model, the following embodiments are combined to further clearly and completely describe the technical solution of the present invention, and the examples are only used to explain the present invention, but not to limit the scope of the present invention.

Example 1

As shown in fig. 1 to 3, 6 and 7, the dining table of the present invention comprises a dining table body, the dining table body comprises a table top 1 and table legs 2 for supporting the table top 1, and further comprises a supporting base 3, a supporting shaft 4 and a rotary lifting device, the rotary lifting device comprises a rotary table top 5, a turntable 6, a rotating mechanism 8 and a lifting mechanism 9, an opening 7 is formed at the center of the table top 1, the opening 7 is matched with the shape of the rotary table top 5 and can accommodate the rotary table top 5, the supporting base 3 is arranged at the back of the table top 1 and is located below the opening 7, the lower end of the supporting shaft 4 is fixed in the supporting base 3, the lower end of the lifting mechanism 9 is arranged in the supporting base 3, the turntable 6 is arranged at the upper end of the lifting mechanism 9, the rotating mechanism 8 is arranged in the rotating disc 6, a through hole 61 which is through up and down is arranged at the central position of the rotating disc 6, the aperture of the through hole 61 is larger than the outer diameter of the supporting shaft 4, the upper end of the supporting shaft 4 extends to the upper part of the rotating disc 6 through the through hole 61, a blind hole 51 which is matched with the supporting shaft 4 is arranged at the central position of the rotating table top 5, the rotating table top 5 is detachably connected with the supporting shaft 4 through the blind hole 51, and the rotating table top 5 can rotate on the rotating disc 6 along the supporting shaft 4 under the action of the rotating mechanism 8; the turntable 6 can be driven to rotate and lift around the support shaft 4 above the support base 3 under the action of the lifting mechanism 9; through the rotatory elevating movement of carousel 6, can drive rotatory desktop 5 that sets up on carousel 6 along with carousel 6 synchronous motion, realize rotatory desktop 5 goes up and down in opening 7 department, works as rotatory desktop 5 descends along with carousel 6, can make the top surface of rotatory desktop 5 with the upper surface of desktop 1 flushes, uses as general dining table, and works as rotatory desktop 5 rises along with carousel 6, makes the bottom surface of rotatory desktop 5 slightly be higher than the upper surface of desktop 1, just so can regard as rotatory dining table to use.

Furthermore, the lifting and rotating dining table of the present invention, wherein the lifting mechanism 9 comprises a plurality of connecting members and a pull rod 91, the connecting members comprise a first hinge 92, a first connecting shaft 93, a connecting rod 94, a second hinge 95 and a second connecting shaft 96, one side of the first hinge 92 is fixed in the supporting base 3, one side of the second hinge 95 is fixed on the bottom surface of the turntable 6, the other side of the first hinge 92 and the second hinge 95 is respectively provided with a connecting hole corresponding to the first connecting shaft 93 and the second connecting shaft 96, one end of the connecting rod 94 is connected with the first hinge 92 by the first connecting shaft 93 passing through the corresponding connecting hole, the other end of the connecting rod 94 is connected with the second hinge 95 by the second connecting shaft 96 passing through the corresponding connecting hole, two ends of the connecting rod 94 form a hinge type linkage structure by the corresponding first connecting shaft 93 and the second connecting shaft 96, the connecting rod 94 can rotate 360 degrees along with the corresponding first hinge 92 and second hinge 95 through the first connecting shaft 93 and the second connecting shaft 96; one end of the pull rod 91 is fixed on the bottom surface of the turntable 6, and the other end is a free end which extends to the outer side of the turntable 6 and is positioned below the table top 1 in the table body; under the action of external force, the pull rod 91 drives the rotary table 6 to surround the supporting shaft 4 to rotate, and in the rotating process of the rotary table 6, the first hinge 92 drives the connecting rod 94 to synchronously rotate and drive the second hinge 95 to be linked through the connecting rod 94 under the action of the first connecting shaft 93 and the second connecting shaft 96, so that the rotary table 6 is lifted in the rotating and lifting motion process. In the practical application process, the lifting height can be adjusted.

Further, a liftable and rotatory dining table, wherein the connecting piece is equipped with threely, three connecting piece be cyclic annular evenly distributed in support between base 3 and the carousel 6.

Furthermore, in the dining table of the present invention, the rotary table top 5 and the turntable 6 are both arranged in a circular structure, wherein the outer diameter of the turntable 6 is smaller than the outer diameter of the rotary table top 5; the rotating mechanism 8 is composed of a supporting ring 81 and a rotating ring 82, the supporting ring 81 is annularly arranged at the outer edge of the top surface of the rotating disc 6, the rotating ring 82 is annularly and coaxially arranged on the top surface of the rotating disc 6 with the supporting ring 81, the rotating ring 82 is arranged inside the supporting ring 81 and is meshed with the supporting ring 81, and the rotating ring 82 can rotate on the rotating disc 6 along with the supporting ring 81; the rotation of the rotating table top 5 around the supporting shaft 4 on the turntable 6 is realized by the contact of the rotating ring 82 and the back of the rotating table top 5.

Further, a dining table that can rise and fall and rotate, wherein still be equipped with a plurality of elastomeric support columns 83 on rotatory ring 82, a plurality of elastomeric support columns 83 use back shaft 4 as the center, evenly distributed in rotatory ring 82 is last.

Further, a liftable and rotatory dining table, wherein still inlay in the through-hole 61 one with 4 assorted abrasionproof axle sleeves 10 of back shaft, carousel 6 drives its rotary motion in-process through rotatory elevating system, abrasionproof axle sleeve 10 is passed to the upper end of back shaft 4, can make it extend to 6 tops of carousel.

Further, a dining table that can rise, fall and rotate, wherein support base 3 comprises a plurality of bracing pieces 31 and a backup pad 32, a plurality of bracing pieces 31 the upper end with the back fixed connection of desktop 1, its lower extreme all with be located backup pad 32 fixed connection of opening 7 below.

Further, a dining table that can rise, fall and rotate, wherein desktop 1 and rotatory desktop 5 all adopt timber, organic glass or marble material preparation.

Further, the utility model discloses a dining table that can go up and down and rotate, wherein the desktop 1 of dining table body is any one structure in square, circular or the ellipse.

In the practical use process, with the dining table of the embodiment, the rotating table top 5 is firstly installed on the turntable 6 and is connected with the supporting shaft 4 through the blind hole 51, so that the fast installation can be realized. When the rotating table top 5 does not need to be lifted, the rotating table top 5 is positioned in the opening 7, and the upper surface of the rotating table top and the table top 1 are positioned on the same plane, so that the rotating table top can be used as a common dining table. When the rotating table top 5 needs to be lifted or rotated, the pull rod 91 is pulled by a hand under the action of external force, the rotating disc 6 is driven to rotate through the pull rod 91, the connecting piece consists of a first hinge 92, a first connecting shaft 93, a connecting rod 94, a second hinge 95 and a second connecting shaft 96, two ends of the connecting rod 94 are respectively connected with the corresponding first hinge 92 and the second hinge 95 through the first connecting shaft 93 and the second connecting shaft 96 to form a hinge type linkage structure, and the connecting rod 94 can rotate 360 degrees along with the corresponding first hinge 92 and the corresponding second hinge 95 through the first connecting shaft 93 and the second connecting shaft 96; in the rotating process of the turntable 6, the first hinge 92 drives the connecting rod 94 to rotate synchronously, and under the action of the first connecting shaft 93 and the second connecting shaft 96, the connecting rod 94 drives the second hinge 95 to link. Through the arranged first hinge 92 and second hinge 95, the connecting rod 94 forms a multi-link mechanism under the action of the first connecting shaft 93 and the second connecting shaft 96, so that the rotary table 6 can realize a lifting function in the rotating process, and the specific lifting height can be adjusted as required. Then, the rotating tabletop 5 is rotated by hands, and under the action of the rotating mechanism 8, the purpose that the rotating tabletop 5 rotates on the rotary disc 6 can be achieved, so that the lifting or rotating function of the rotating tabletop 5 is realized, the using function of the dining table is expanded, users around the dining table can have meals conveniently, and convenience is brought to dining.

Example 2

As shown in fig. 1 and fig. 4 to fig. 7, the main structure of the dining table of the present invention is the same as the dining table of embodiment 1, the difference is that the structure of the lifting mechanism 9 is different, the lifting mechanism 9 comprises a plurality of connecting members and a pull rod 91, the connecting members comprise a first universal joint 97, a second universal joint 98 and a connecting shaft 99, the first universal joint 97 is disposed in the supporting base 3, the second universal joint 98 is disposed on the bottom surface of the turntable 6, two ends of the connecting shaft 99 are respectively connected with the corresponding first universal joint 97 and the second universal joint 98, and the connecting shaft 99 can realize 360-degree rotation through the first universal joint 97 and the second universal joint 98; one end of the pull rod 91 is fixed on the bottom surface of the turntable 6, and the other end is a free end which extends to the outer side of the turntable 6 and is positioned below the table top 1 in the table body; under the action of external force, the pull rod 91 drives the rotary table 6 to rotate around the supporting shaft 4, and in the rotating process of the rotary table 6, the first universal joint 97 drives the connecting shaft 99 to synchronously rotate and drives the connecting shaft 99 to link with each other through the second universal joint 98. The turntable 6 is lifted and lowered during the rotation movement through the connecting shaft 99 by the first universal joint 97 and the second universal joint 98.

In the practical use process, with the dining table of the embodiment, the rotating table top 5 is firstly installed on the turntable 6 and is connected with the supporting shaft 4 through the blind hole 51, so that the fast installation can be realized. When the rotating table top 5 does not need to be lifted, the rotating table top 5 is positioned in the opening 7, and the upper surface of the rotating table top and the table top 1 are positioned on the same plane, so that the rotating table top can be used as a common dining table. When the rotating table top 5 needs to be lifted or rotated, the pull rod 91 is pulled by hand under the action of external force, the rotating disc 6 is driven to rotate through the pull rod 91, the connecting piece consists of a first universal joint 97, a second universal joint 98 and a connecting shaft 99, two ends of the connecting shaft 99 are respectively connected with the corresponding first universal joint 97 and the second universal joint 98, and the connecting shaft 99 can realize 360-degree rotation through the first universal joint 97 and the second universal joint 98; in the rotating process of the turntable 6, the first universal joint 97 drives the connecting shaft 99 to synchronously rotate, and the connecting shaft 99 can rotate along with the second universal joint 98 in the rotating process, so that the turntable 6 can be lifted in the rotating process, and the specific lifting height can be adjusted as required. Then, the rotating tabletop 5 is rotated by hands, and under the action of the rotating mechanism 8, the purpose that the rotating tabletop 5 rotates on the rotary disc 6 can be achieved, so that the lifting or rotating function of the rotating tabletop 5 is realized, the using function of the dining table is expanded, users around the dining table can have meals conveniently, and convenience is brought to dining.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art can make various modifications and changes, and any modifications, equivalent replacements, improvements, etc. made by using the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a liftable and rotatory dining table, includes the dining table body, the dining table body is including desktop (1) and be used for supporting table foot (2) of desktop (1), its characterized in that: the table further comprises a supporting base (3), a supporting shaft (4) and a rotary lifting device, wherein the rotary lifting device comprises a rotary table top (5), a rotary table (6), a rotary mechanism (8) and a lifting mechanism (9), an opening (7) which is through up and down is arranged at the central position of the table top (1), the opening (7) is matched with the appearance structure of the rotary table top (5) and can accommodate the rotary table top (5), the supporting base (3) is arranged on the back surface of the table top (1) and is positioned below the opening (7), the lower end of the supporting shaft (4) is fixed in the supporting base (3), the lower end of the lifting mechanism (9) is arranged in the supporting base (3), the rotary table (6) is arranged at the upper end of the lifting mechanism (9), and the rotary mechanism (8) is arranged in the rotary table (6), a through hole (61) which is through up and down is formed in the center of the turntable (6), the aperture of the through hole (61) is larger than the outer diameter of the supporting shaft (4), the upper end of the supporting shaft (4) extends above the turntable (6) through the through hole (61), a blind hole (51) matched with the supporting shaft (4) is formed in the center of the rotary table top (5), the rotary table top (5) is detachably connected with the supporting shaft (4) through the blind hole (51), and the rotary table top (5) can rotate on the turntable (6) along the supporting shaft (4) under the action of the rotating mechanism (8); the turntable (6) can be driven to rotate and lift around the supporting shaft (4) above the supporting base (3) under the action of the lifting mechanism (9); through the rotary lifting motion of the turntable (6), the rotary table top (5) arranged on the turntable (6) can be driven to move synchronously along with the turntable (6), and the rotary table top (5) is lifted at the opening (7).

2. A liftable and rotatable dining table according to claim 1, wherein: the lifting mechanism (9) comprises a plurality of connecting pieces and a pull rod (91), each connecting piece comprises a first hinge (92), a first connecting shaft (93), a connecting rod (94), a second hinge (95) and a second connecting shaft (96), one side edge of each first hinge (92) is fixed in the supporting base (3), one side edge of each second hinge (95) is fixed on the bottom surface of the rotary disc (6), connecting holes corresponding to the first connecting shafts (93) and the second connecting shafts (96) are respectively formed in the other sides of the first hinge (92) and the second hinge (95), one end of each connecting rod (94) penetrates through the corresponding connecting hole through the first connecting shaft (93) to be connected with the first hinge (92), and the other end of each connecting rod (94) penetrates through the corresponding connecting hole through the second connecting shaft (96) to be connected with the second hinge (95), two ends of the connecting rod (94) form a hinge type linkage structure through the corresponding first connecting shaft (93) and the second connecting shaft (96), and the connecting rod (94) can rotate 360 degrees along with the corresponding first hinge (92) and the second hinge (95) through the first connecting shaft (93) and the second connecting shaft (96); one end of the pull rod (91) is fixed on the bottom surface of the turntable (6), and the other end of the pull rod is a free end which extends to the outer side of the turntable (6) and is positioned below the table top (1) in the dining table body; under the exogenic action, through pull rod (91) drive carousel (6) and center on back shaft (4) rotate carousel (6) rotate the in-process, through first hinge (92) drive connecting rod (94) synchronous revolution to under the effect of first connecting axle (93) and second connecting axle (96), drive second hinge (95) linkage through connecting rod (94), make carousel (6) realize going up and down at rotatory in-process.

3. A liftable and rotatable dining table according to claim 1, wherein: the lifting mechanism (9) comprises a plurality of connecting pieces and a pull rod (91), the connecting pieces are composed of a first universal joint (97), a second universal joint (98) and a connecting shaft (99), the first universal joint (97) is arranged in the supporting base (3), the second universal joint (98) is arranged on the bottom surface of the turntable (6), two ends of the connecting shaft (99) are respectively connected with the corresponding first universal joint (97) and the second universal joint (98), and the connecting shaft (99) can rotate for 360 degrees through the first universal joint (97) and the second universal joint (98); one end of the pull rod (91) is fixed on the bottom surface of the turntable (6), and the other end of the pull rod is a free end which extends to the outer side of the turntable (6) and is positioned below the table top (1) in the dining table body; under the action of external force, the pull rod (91) drives the turntable (6) to surround the supporting shaft (4) to rotate the turntable (6), the first universal joint (97) drives the connecting shaft (99) to rotate synchronously, and the second universal joint (98) drives the connecting shaft (99) to be linked, so that the turntable (6) is lifted in the rotating process.

4. A liftable and rotatable dining table according to claim 2 or 3, wherein: the connecting pieces are three and are uniformly distributed between the supporting base (3) and the rotary table (6) in an annular mode.

5. A liftable and rotatable dining table according to claim 1, wherein: the rotary table top (5) and the rotary table (6) are both arranged in a circular structure, wherein the outer diameter of the rotary table (6) is smaller than that of the rotary table top (5); the rotating mechanism (8) is composed of a supporting ring (81) and a rotating ring (82), the supporting ring (81) is annularly arranged at the outer edge of the top surface of the turntable (6), the rotating ring (82) is annularly and coaxially arranged on the top surface of the turntable (6) with the supporting ring (81), the rotating ring (82) is arranged inside the supporting ring (81) and meshed with the supporting ring (81), and the rotating ring (82) can rotate on the turntable (6) along with the supporting ring (81); the rotating ring (82) is in contact with the back surface of the rotating table top (5) in a propping mode, so that the rotating table top (5) can rotate around the supporting shaft (4) on the rotating disc (6).

6. A liftable and rotatable dining table according to claim 5, wherein: the rotating ring (82) is further provided with a plurality of elastic supporting columns (83), and the elastic supporting columns (83) are uniformly distributed on the rotating ring (82) by taking the supporting shaft (4) as a center.

7. A liftable and rotatable dining table according to claim 1, wherein: still inlay in through-hole (61) have one with back shaft (4) assorted abrasionproof axle sleeve (10), carousel (6) drive its rotary motion in-process through rotatory elevating system, abrasionproof axle sleeve (10) are passed to the upper end of back shaft (4), can make it extend to carousel (6) top.

8. A liftable and rotatable dining table according to claim 1, wherein: the supporting base (3) is composed of a plurality of supporting rods (31) and a supporting plate (32), the upper ends of the supporting rods (31) are fixedly connected with the back of the desktop (1), and the lower ends of the supporting rods are fixedly connected with the supporting plate (32) below the opening (7).

9. A liftable and rotatable dining table according to claim 1, wherein: the tabletop (1) and the rotary tabletop (5) are both made of wood, organic glass or marble materials.

10. A liftable and rotatable dining table according to claim 1, wherein: the table top (1) of the dining table body is in any one structure of a square structure, a circular structure or an oval structure.