CN111096548B

CN111096548B - Multifunctional office table

Info

Publication number: CN111096548B
Application number: CN202010092837.9A
Authority: CN
Inventors: 梁真泽; 赖井胜; 潘木森
Original assignee: Guangzhou Perfect Office Furniture Co ltd
Current assignee: Guangzhou Perfect Office Furniture Co ltd
Priority date: 2020-02-14
Filing date: 2020-02-14
Publication date: 2022-03-22
Anticipated expiration: 2040-02-14
Also published as: CN111096548A

Abstract

The invention relates to a multifunctional office table, belonging to the technical field of office tables; the technical key points comprise that: workstation and be used for supporting the strutting arrangement of workstation, strutting arrangement is including being located a plurality of support columns of workstation below, locating the support column with drive between the workstation pivoted rotating-structure and locating the support column is with the drive rotating-structure drives the elevation structure that the workstation goes up and down. The invention can solve the problem that the inclination angle of the existing office table is not adjustable, so as to further improve the comfort level of people in office.

Description

Multifunctional office table

Technical Field

The invention relates to the technical field of office tables, in particular to a multifunctional office table.

Background

Desks are widely used in people's work. At present, the height of the finished office table is generally fixed and unchangeable, so that people cannot adjust the height of the office table according to the height of the people, and the office table is in a comfortable state when the people work.

For solving this problem, chinese utility model patent that the grant bulletin number is CN208463233U discloses an intelligent desk convenient to height-adjusting, including the table, the below symmetry of table is equipped with two lift legs, is equipped with the dead lever in the lift leg, and lift leg and dead lever slide from top to bottom along the length direction of fixed rod, and are connected with the lifting rod between the lift leg that two symmetries set up, and the bottom of lifting rod is equipped with the drive structure that the drive lifting rod reciprocated along the length direction of fixed rod.

The above prior art solutions have the following drawbacks: although the problem that the height of the office table is not adjustable is solved in the prior art, the table plate can only lift along the vertical direction and cannot rotate with the lifting legs, so that people cannot adjust the inclination of the table plate, and the office table is not beneficial to further improving the office comfort.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a multifunctional office table, which solves the problem that the inclination angle of the existing office table is not adjustable, so as to further improve the comfort level of people in office.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a many functional type desk, includes the workstation and is used for supporting the strutting arrangement of workstation, strutting arrangement is including being located a plurality of support columns of workstation below, locating the support column with drive between the workstation pivoted rotating-structure and locating the support column is with the drive rotating-structure drives the elevation structure that the workstation goes up and down.

By adopting the technical scheme, the office table comprises the workbench and the supporting device, wherein the supporting device comprises the supporting column, the supporting column is provided with the lifting structure, and the lifting structure can drive the workbench to lift, so that the purpose of adjusting the height of the workbench is achieved, and people can adjust the height of the workbench according to the height of the desk, so that the comfort level of the people in office is improved; in addition, set up drive workstation pivoted rotating-structure between support column and the workstation to can adjust the turned angle of workstation according to actual need, with comfort level when further improving people's official working.

The present invention in a preferred example may be further configured to: the rotating structure comprises a mounting seat arranged below the workbench, a supporting rod with one end fixed on the mounting seat and the other end hinged to the workbench, a first driving piece arranged on the mounting seat and used for driving the workbench to rotate around one end of the supporting rod far away from the mounting seat, and a second driving piece used for driving the first driving piece to rotate towards one side of the supporting rod; one side of the first driving piece, which is close to the mounting seat, is hinged to the mounting seat, and the output end of the first driving piece is connected with the workbench.

By adopting the technical scheme, the mounting seat is arranged and used for mounting the first driving piece; one end of the supporting rod is fixed on the mounting seat, and the other end of the supporting rod is hinged with the workbench, so that the supporting rod can support the workbench on one hand, and the workbench can rotate around one end of the supporting rod, which is far away from the mounting seat, on the other hand; arranging a first driving piece, wherein the first driving piece is used for driving the workbench to rotate; set up the second driving piece, the second driving piece is used for driving the first driving piece toward one side slope of bracing piece, is favorable to making the workstation rotate to the position that is parallel to mutually with the support column, uses when being convenient for train.

The present invention in a preferred example may be further configured to: the output end of the first driving piece is connected with a sliding block which is connected with the workbench in a sliding manner, the workbench is provided with a sliding chute for the sliding block to slide, and the length direction of the sliding chute is vertical to the length direction of the supporting column; two opposite ends of the sliding block are respectively provided with two guide blocks, two opposite side walls of the sliding groove correspond to the guide blocks, a guide groove is formed in each guide block, the length direction of each guide groove is consistent with that of the corresponding sliding groove, and the guide blocks are connected with the guide grooves in a sliding mode.

By adopting the technical scheme, the first driving piece is started, the first driving piece drives the workbench to rotate around one side of the supporting rod, which is far away from the mounting seat, and at the moment, the sliding block slides along the sliding groove in the direction far away from the supporting rod, so that the workbench rotates; in addition, through setting up the guide block in the both sides that the sliding block is relative, the gliding guide way of guide block has been seted up to two lateral walls that the spout is relative, and the guide block is located the guide way, is favorable to spacing the sliding block to prevent that the sliding block breaks away from the spout, lead to first driving piece can't drive the workstation and get back to the horizontality.

The present invention in a preferred example may be further configured to: the lifting structure comprises a sliding seat arranged on the supporting column, the sliding seat is connected with a driving structure for driving the sliding seat to slide along the height direction of the supporting column, and the sliding seat is connected with the mounting seat.

By adopting the technical scheme, the driving structure drives the sliding seat to slide along the height direction of the supporting column, and when the sliding seat ascends, the mounting seat, the rotating structure on the mounting seat and the workbench also ascend, so that the office table is adaptive to people with higher height; when the sliding seat descends, the mounting seat, the rotating structure on the mounting seat and the workbench also descend, so that the office table is suitable for shorter people.

The present invention in a preferred example may be further configured to: the driving structure comprises a lifting motor arranged between two oppositely arranged supporting columns, a first transmission assembly connected with the output end of the lifting motor and a second transmission assembly connected with the first transmission assembly; the two groups of second transmission assemblies are arranged on two opposite sides of the first transmission assembly respectively, and are positioned inside the two oppositely arranged supporting columns respectively.

Through adopting above-mentioned technical scheme, start elevator motor, elevator motor drives first transmission assembly and rotates, and first transmission assembly drives two sets of second transmission assemblies that are located its both sides and rotates, and an elevator motor can be located the sliding seat lift of two support columns simultaneously promptly.

The present invention in a preferred example may be further configured to: the first transmission assembly comprises a first flat gear connected with an output shaft of the lifting motor, a second flat gear meshed with the first flat gear and a transmission shaft fixed to an inner ring of the second flat gear; wherein, the both ends of transmission shaft extend to in two relative support columns respectively.

Through adopting above-mentioned technical scheme, start elevator motor, elevator motor drives first pinion and rotates, and first pinion drives second pinion and rotates, and second pinion drives the transmission shaft and rotates, and the transmission shaft drives the second transmission assembly who is located its both ends and transmits.

The present invention in a preferred example may be further configured to: the second transmission assembly comprises a first bevel gear arranged at the end part of the transmission shaft, a second bevel gear meshed with the first bevel gear, a connecting shaft fixed on the inner ring of the second bevel gear and a screw rod fixedly connected with the connecting shaft; one end, close to the support column, of the connecting shaft is rotatably connected with the bottom of the support column, the connecting shaft and the screw rod are located on the same straight line, and the length direction of the connecting shaft is consistent with the height direction of the support column; in addition, the lead screw with sliding seat screw-thread fit, the sliding seat is equipped with spacing seat, the support column corresponds spacing seat is equipped with the spacing groove, the length direction of spacing groove with the direction of height of support column is unanimous, just spacing seat with spacing groove sliding connection.

By adopting the technical scheme, the transmission shaft rotates to drive the first bevel gear to rotate, the first bevel gear rotates to drive the second bevel gear and the connecting shaft of the inner ring of the second bevel gear to rotate, the screw rod is fixedly connected with the connecting shaft, and the screw rod and the connecting shaft are positioned on the same straight line, so that the length direction of the screw rod is consistent with the height direction of the supporting column; in addition, the sliding seat is in threaded fit with the screw rod, the two opposite sides of the sliding seat are provided with limiting seats, limiting grooves for the limiting seats to slide are formed in the supporting columns, the length direction of the limiting grooves is consistent with the height direction of the supporting columns, and under the limiting effect of the limiting seats and the limiting grooves, the sliding seat can only move along the length direction of the screw rod, so that the mounting seat, a rotating structure above the mounting seat and a workbench are driven to ascend or descend along the vertical direction.

The present invention in a preferred example may be further configured to: the bottom of the supporting column is also provided with supporting legs which are perpendicular to the supporting column, the supporting legs are provided with a plurality of moving assemblies which are convenient for moving the office table, and each moving assembly is connected with a driving source which drives the moving assembly to extend out of the supporting legs or enter the supporting legs; wherein, a plurality of the driving sources are controlled by the PLC controller in a unified way.

Through adopting above-mentioned technical scheme, the bottom of support column sets up the supporting legs, establishes the removal subassembly in the supporting legs, and the removal subassembly is connected and is moved the driving source that the subassembly got into or stretched out the supporting legs by the drive, and a plurality of driving source is by the same control of PLC controller, and the length that is favorable to driving a plurality of to remove the subassembly and stretches out is unanimous, has the advantage of being convenient for remove the desk.

The present invention in a preferred example may be further configured to: the movable assembly comprises a supporting shaft and a pulley, the supporting shaft is connected with the output end of the driving source, the pulley is connected with the supporting shaft, and the pulley is arranged at one end, far away from the driving source, of the supporting shaft.

Through adopting above-mentioned technical scheme, when needs remove the desk, start the driving source, make the driving source drive the outside that the pulley stretches out the supporting legs to make pulley and ground direct contact, at this moment, ground is kept away from to the supporting legs, is favorable to reducing the frictional force that the desk received, thereby reaches the purpose of being convenient for remove the desk.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the office table comprises a workbench and a supporting device, wherein the supporting device comprises a supporting column, the supporting column is provided with a lifting structure, and the lifting structure can drive the workbench to lift, so that the purpose of adjusting the height of the workbench is achieved, people can adjust the height of the workbench according to the height of the people, and the comfort level of the people in office is improved; in addition, a rotating structure for driving the workbench to rotate is arranged between the supporting column and the workbench, so that the rotating angle of the workbench can be adjusted according to actual needs, and the comfort level of people during office work is further improved;

2. arranging a mounting seat, wherein the mounting seat is used for mounting a first driving piece; one end of the supporting rod is fixed on the mounting seat, and the other end of the supporting rod is hinged with the workbench, so that the supporting rod can support the workbench on one hand, and the workbench can rotate around one end of the supporting rod, which is far away from the mounting seat, on the other hand; arranging a first driving piece, wherein the first driving piece is used for driving the workbench to rotate; the second driving piece is arranged and used for driving the first driving piece to incline towards one side of the supporting rod, so that the workbench can be conveniently rotated to a position parallel to the supporting column, and the training device is convenient to use during training;

3. the driving structure drives the sliding seat to slide along the height direction of the supporting column, and when the sliding seat ascends, the mounting seat, the rotating structure on the mounting seat and the workbench ascend, so that the office table is adaptive to people with higher height; when the sliding seat descends, the mounting seat, the rotating structure on the mounting seat and the workbench also descend, so that the office table is suitable for shorter people;

4. when the office table needs to be moved, the driving source is started, the driving source drives the pulleys to extend out of the outer sides of the supporting legs, the pulleys are in direct contact with the ground, at the moment, the supporting legs are far away from the ground, the friction force received by the office table is favorably reduced, and the purpose of facilitating movement of the office table is achieved.

Drawings

FIG. 1 is a side view of the desk of the present embodiment;

FIG. 2 is a schematic structural view of the office desk of the present embodiment in another state;

FIG. 3 is a sectional view of the desk of the present embodiment;

fig. 4 is a cross-sectional view of the support foot and the moving assembly of the present embodiment.

In the figure, 1, a workbench; 11. a chute; 12. a guide groove; 2. a support pillar; 21. a limiting groove; 3. a cross bar; 4. supporting legs; 41. a receiving cavity; 51. a mounting seat; 52. a support bar; 53. a first cylinder; 54. a second cylinder; 55. a slider; 551. a guide block; 61. a fixed seat; 62. a lifting motor; 631. a first spur gear; 632. a second spur gear; 633. a drive shaft; 641. a first bevel gear; 642. a second bevel gear; 643. a connecting shaft; 644. a screw rod; 65. a sliding seat; 651. a limiting seat; 66. a connecting rod; 71. a third cylinder; 72. a support shaft; 73. a pulley.

Detailed Description

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

In this embodiment: referring to fig. 1, the multifunctional office table disclosed by the invention comprises a workbench 1, and two supporting devices are symmetrically arranged below the workbench 1. Wherein, strutting arrangement includes

support column

2, and 2 perpendicular workstations 1 settings of support column, and are equipped with horizontal pole 3 between the support column 2 of two symmetrical settings. In this embodiment, the inside of support column 2 and horizontal pole 3 all is the cavity setting, is favorable to save material, reduces the manufacturing cost of desk. In addition, in order to improve the stability of desk, the bottom of support column 2 is equipped with supporting legs 4, and supporting legs 4 are "n" style of calligraphy, and supporting legs 4 welded fastening is in the support column 2 one end of keeping away from workstation 1.

In order to adjust the inclination angle of the desk, a rotating structure is arranged between the workbench 1 and the supporting column 2 in the embodiment. Referring to fig. 1 and 2, the rotation structure includes a mount 51, a support rod 52, a first driving member, and a second driving member.

Wherein, mount pad 51 is located between workstation 1 and the support column 2, and the one end fixed mounting of bracing piece 52 is on mount pad 51, and the other end of bracing piece 52 is toward the upwards extension of the direction slope that is close to workstation 1, and the one end that the mount pad 51 was kept away from to bracing piece 52 is articulated mutually with workstation 1.

The first driving member may be an air cylinder, a hydraulic cylinder, etc., in this embodiment, the first driving member is exemplified by a first air cylinder 53, a cylinder body of the first air cylinder 53 is hinged to one side of the mounting seat 51 opposite to the workbench 1, a piston rod of the first air cylinder 53 is hinged to a sliding block 55, a sliding groove 11 is arranged on one side of the workbench 1 facing the mounting seat 51, a length direction of the sliding groove 11 is perpendicular to a length direction of the supporting column 2, the sliding block 55 is located in the sliding groove 11, and the sliding block 55 is slidably connected with the sliding groove 11.

In order to limit the sliding block 55 in the sliding slot 11, two opposite sides of the sliding block 55 are respectively provided with a guide block 551, the two guide blocks 551 are positioned at two sides of the sliding slot 11 in the length direction, two opposite side walls of the sliding slot 11 are provided with guide grooves 12 corresponding to the guide blocks 551, the length direction of the guide grooves 12 is consistent with the length direction of the sliding slot 11, and the guide blocks 551 are in sliding connection with the guide grooves 12.

The second driving member may be an electric telescopic rod, an air cylinder, a hydraulic cylinder, etc., and in this embodiment, the second driving member is exemplified by the second air cylinder 54. The second cylinder 54 is located on one side of the first cylinder 53 away from the support rod 52, a cylinder body of the second cylinder 54 is hinged to the mounting seat 51, and a piston rod of the second cylinder 54 is hinged to the cylinder body of the first cylinder 53. Further, the end of the second cylinder 54 remote from the mounting base 51 is gradually moved closer to the first cylinder 53, and is inclined upward.

When training is needed, the first air cylinder 53 and the second air cylinder 54 are started, the piston rod of the first air cylinder 53 and the piston rod of the second air cylinder 54 extend simultaneously, so that the first air cylinder 53 drives the workbench 1 to rotate around one end, far away from the mounting seat 51, of the supporting rod 52, and the second air cylinder 54 drives the first air cylinder 53 to incline towards one side close to the supporting rod 52 until the workbench 1 rotates to a position parallel to the supporting column 2.

In this embodiment, the sliding block 55 is specifically a cylindrical block, and the two guide blocks 551 are located on two opposite end surfaces of the cylindrical block, which is beneficial to reducing the friction force applied to the sliding block 55 during sliding.

In addition, referring to fig. 1 and 3, in order to adjust the height of the working platform 1 and adjust the height of the working platform according to the height of the user, in this embodiment, a lifting structure for adjusting the height of the working platform 1 is provided in the supporting column 2.

Referring to fig. 3, the lifting structure includes a sliding seat 65 disposed in the supporting column 2, the sliding seat 65 is connected with the supporting column 2 in a vertical sliding manner along the height direction of the supporting column 2, and a connecting rod 66 is fixedly connected between the sliding seat 65 and the mounting seat 51. Wherein, the connecting rod 66 is perpendicular to the sliding seat 65 and the mounting seat 51. Further, the slide holder 65 is connected to a driving mechanism for driving the slide holder 65 to slide up and down.

Referring to fig. 3, the driving structure includes a lift motor 62, a first transmission assembly, and a second transmission assembly. Wherein, the below of horizontal pole 3 is fixed with fixing base 61, and lift motor 62 installs on fixing base 61.

The first transmission assembly includes a first flat gear 631, a second flat gear 632 and a transmission shaft 633. Referring to fig. 3, the first spur gear 631 is fixedly connected to an output shaft of the lifting motor 62, the second spur gear 632 is located in the cross bar 3, the second spur gear 632 is engaged with the first spur gear 631, and the cross bar 3 is provided with a through hole for the second spur gear 632 to be engaged with the first spur gear 631. The transmission shaft 633 is fixedly arranged at the inner ring of the second flat gear 632, two ends of the transmission shaft 633 respectively extend into the two symmetrically arranged support pillars 2, the transmission shaft 633 is rotatably connected with the support pillars 2, and the transmission shaft 633 rotates around the central axis thereof.

The second transmission assemblies are provided with two groups, and the two groups of second transmission assemblies are respectively positioned at two ends of the transmission shaft 633. The second transmission assembly includes a first bevel gear 641 fixedly mounted at one end of the transmission shaft 633, the first bevel gear 641 is engaged with a second bevel gear 642, a connecting shaft 643 is fixedly mounted at an inner ring of the second bevel gear 642, and a lead screw 644 is fixedly connected at one end of the connecting shaft 643 close to the sliding seat 65. Specifically, the length direction of the connecting shaft 643 is perpendicular to the length direction of the transmission shaft 633 and the screw rod 644, and one end of the connecting shaft 643 close to the bottom of the support column 2 is rotatably connected with the bottom of the support column 2. The sliding seat 65 is in threaded fit with the screw 644, a limiting seat 651 is respectively arranged on two opposite sides of the sliding seat 65, a limiting groove 21 is formed in the side wall of the supporting column 2 corresponding to the limiting seat 651 along the height direction of the supporting column 2, the limiting seat 651 is located in the limiting groove 21, and the limiting seat 651 is in sliding connection with the limiting groove 21.

When the lifting motor 62 is started, the output shaft of the lifting motor 62 drives the first flat gear 631 to rotate, the first flat gear 631 drives the second flat gear 632 to rotate, the second flat gear 632 drives the transmission shaft 633 in the cross bar 3 to rotate, the transmission shaft 633 drives the first bevel gear 641 to rotate, the first bevel gear 641 drives the second bevel gear 642 to rotate, the second bevel gear 642 drives the connection shaft 643 and the lead screw 644 fixedly connected to the transmission shaft 633 to rotate, under the limiting effect of the limiting seat 651 and the limiting groove 21, the sliding seat 65 in threaded fit with the lead screw 644 moves along the length direction of the lead screw 644, so that the rotating structure on the mounting seat 51 and the workbench 1 are driven to move up and down along the height direction of the support column 2, the height of the workbench 1 is adjusted through the lifting structure, and the workbench 1 meets the requirements of people with different heights.

In order to move the desk to a target position in training, referring to fig. 1 and 4, in this embodiment, the supporting legs 4 are provided with four groups of moving assemblies convenient for the desk to move, and the four groups of moving assemblies are arranged in a pairwise symmetrical manner.

The moving assembly comprises a supporting shaft 72 which is connected with the supporting leg 4 in a sliding manner along the height direction of the supporting column 2, a pulley 73 is fixedly connected to one end of the supporting shaft 72, and a driving source which drives the supporting shaft 72 and the supporting leg 4 to slide relatively is fixedly connected to the other end of the supporting shaft. The driving source may be an air cylinder, a hydraulic cylinder, etc., and in this embodiment, the driving source is specifically a third air cylinder 71, the third air cylinder 71 is fixedly installed on one side of the supporting foot 4 facing the workbench 1, and a piston rod of the third air cylinder 71 is fixedly connected with the supporting shaft 72. When the office table does not need to be moved, in order to enable the office table to be stably placed on the ground, in this embodiment, the receiving cavity 41 for receiving the pulley 73 is formed inside the supporting leg 4, and the pulley 73 is received into the receiving cavity 41 through the third cylinder 71, so that the office table can be stably placed on the ground; when the office table needs to be moved, the third cylinder 71 is only needed to be started, the supporting shaft 72 drives the pulley 73 to extend out of the outer side of the supporting foot 4, and the office table can be moved after the pulley 73 contacts the ground.

In order to make the pulleys 73 of the four sets of moving components synchronously extend and retract, in the embodiment, the four sets of third air cylinders 71 are controlled by the PLC controller, so that the four sets of moving components synchronously move simultaneously.

The implementation principle of the embodiment is as follows: the office table comprises a workbench 1 and a supporting device, wherein the supporting device comprises a supporting column 2, the supporting column 2 is provided with a lifting structure, and the lifting structure can drive the workbench 1 to lift, so that the purpose of adjusting the height of the workbench 1 is achieved, people can adjust the height of the workbench 1 according to the height of the people, and the comfort level of the people in office is improved; in addition, set up drive workstation 1 pivoted rotating-structure between support column 2 and the workstation 1 to can adjust workstation 1's turned angle according to actual need, comfort level when further improving people's official working.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. A multi-functional type desk, includes workstation (1) and is used for supporting strutting arrangement of workstation (1), its characterized in that: the supporting device comprises a plurality of supporting columns (2) positioned below the workbench (1), a rotating structure arranged between the supporting columns (2) and the workbench (1) to drive the workbench (1) to rotate, and a lifting structure arranged on the supporting columns (2) to drive the rotating structure to drive the workbench (1) to lift;

the rotating structure comprises a mounting seat (51) arranged below the workbench (1), a supporting rod (52) with one end fixed to the mounting seat (51) and the other end hinged to the workbench (1), a first driving piece arranged on the mounting seat (51) and used for driving the workbench (1) to rotate around one end, far away from the mounting seat (51), of the supporting rod (52), and a second driving piece used for driving the first driving piece to rotate towards one side of the supporting rod (52); one side, close to the mounting seat (51), of the first driving piece is hinged to the mounting seat (51), and the output end of the first driving piece is connected with the workbench (1);

the output end of the first driving piece is connected with a sliding block (55) which is in sliding connection with the workbench (1), the workbench (1) is provided with a sliding chute (11) for the sliding block (55) to slide, and the length direction of the sliding chute (11) is vertical to that of the supporting column (2); two opposite end parts of the sliding block (55) are respectively provided with two guide blocks (551), two opposite side walls of the sliding groove (11) are provided with guide grooves (12) corresponding to the guide blocks (551), the length direction of the guide grooves (12) is consistent with the length direction of the sliding groove (11), and the guide blocks (551) are in sliding connection with the guide grooves (12).

2. A multi-functional desk as recited in claim 1, wherein: the lifting structure comprises a sliding seat (65) arranged on the supporting column (2), the sliding seat (65) is connected with a driving mechanism for driving the sliding seat (65) to slide along the height direction of the supporting column (2), and the sliding seat (65) is connected with the mounting seat (51).

3. A multi-functional desk as recited in claim 2, wherein: the driving structure comprises a lifting motor (62) arranged between two oppositely arranged supporting columns (2), a first transmission assembly connected with the output end of the lifting motor (62) and a second transmission assembly connected with the first transmission assembly; the two groups of second transmission assemblies are arranged on two opposite sides of the first transmission assembly respectively, and are located inside the two oppositely arranged supporting columns (2).

4. A multi-functional desk as recited in claim 3, wherein: the first transmission assembly comprises a first flat gear (631) connected with an output shaft of the lifting motor (62), a second flat gear (632) meshed with the first flat gear (631), and a transmission shaft (633) fixed to an inner ring of the second flat gear (632); wherein, the two ends of the transmission shaft (633) respectively extend into the two oppositely arranged supporting columns (2).

5. A multi-functional desk as recited in claim 4, wherein: the second transmission assembly comprises a first bevel gear (641) arranged at the end part of the transmission shaft (633), a second bevel gear (642) meshed with the first bevel gear (641), a connecting shaft (643) fixed on the inner ring of the second bevel gear (642) and a screw rod (644) fixedly connected with the connecting shaft (643); one end, close to the supporting column (2), of the connecting shaft (643) is rotatably connected with the bottom of the supporting column (2), the connecting shaft (643) and the screw rod (644) are located on the same straight line, and the length direction of the connecting shaft (643) is consistent with the height direction of the supporting column (2); in addition, lead screw (644) with slide holder (65) screw-thread fit, slide holder (65) are equipped with spacing seat (651), support column (2) correspond spacing seat (651) are equipped with spacing groove (21), the length direction of spacing groove (21) is unanimous with the direction of height of support column (2), just spacing seat (651) with spacing groove (21) sliding connection.

6. A multi-functional desk as recited in claim 1, wherein: the bottom of the supporting column (2) is also provided with supporting legs (4), the supporting legs (4) are perpendicular to the supporting column (2), the supporting legs (4) are provided with a plurality of moving assemblies convenient for moving an office table, and each moving assembly is connected with a driving source for driving the moving assembly to extend out of the supporting legs (4) or enter the supporting legs (4); wherein, a plurality of the driving sources are controlled by the PLC controller in a unified way.

7. A multi-functional desk as recited in claim 6, wherein: the moving assembly comprises a supporting shaft (72) connected with the output end of the driving source and a pulley (73) connected with the supporting shaft (72), and the pulley (73) is arranged at one end, far away from the driving source, of the supporting shaft (72).