CN112425892A

CN112425892A - Combined office furniture

Info

Publication number: CN112425892A
Application number: CN202011262074.4A
Authority: CN
Inventors: 黄祖权
Original assignee: Hangzhou Yutong Cultural Creative Co ltd
Current assignee: Hangzhou Yutong Cultural Creative Co ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-03-02

Abstract

The invention discloses combined office furniture, which comprises a first cabinet body, a second cabinet body positioned on one side of the first cabinet body, a table plate arranged above the first cabinet body and the second cabinet body, a first lifting device and a second lifting device for adjusting the height of the table plate, and a driving device for driving the first lifting device and the second lifting device to operate; the invention adopts the bilaterally symmetrical lifting device, the lifting process is stable and the synchronism is high, and the firmness of the support can be ensured after the lifting.

Description

Combined office furniture

Technical Field

The invention relates to the field of office supplies, in particular to combined office furniture.

Background

Office furniture is indispensable office equipment in working environments of enterprises, public institutions, government offices and the like. Along with the development of society, people also have higher and higher requirements on the desk, not only reflect on desk material, colour, size etc. because the height of desk is fixed, the long-term work of working crowd over a table leads to cervical vertebra, lumbar vertebra sick and pain to appear, influences health and office efficiency, needs a liftable desk to adapt to the crowd of not co-altitude.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the combined office furniture, which adopts the bilaterally symmetrical lifting device, has stable lifting process and high synchronism, and can ensure the firmness of support after lifting.

In order to achieve the purpose, the invention adopts the following technical scheme: a combined office furniture comprises a first cabinet body, a second cabinet body positioned on one side of the first cabinet body, a table plate arranged above the first cabinet body and the second cabinet body, a first lifting device and a second lifting device for adjusting the height of the table plate, and a driving device for driving the first lifting device and the second lifting device to operate; the first lifting device comprises a first fixed seat and a second fixed seat which are fixedly arranged on a first cabinet body, a screw rod, a first internal thread block, a second internal thread block, a first rotating shaft, a second rotating shaft, a first sliding rail, a first sliding block, a second sliding block, a fixed block, a first rotating rod, a second rotating rod, a plurality of teeth, a plurality of tooth grooves, a plurality of elastic elements and a plurality of elastic elements, wherein the two ends of the screw rod are respectively rotatably arranged on the first fixed seat and the second fixed seat, the first internal thread block is sleeved at one end of the screw rod, the second internal thread block is sleeved at the other end of the screw rod, the first rotating shaft is rotatably arranged on the first internal thread block, the second rotating shaft is rotatably arranged on the second internal thread block, the first sliding rail is movably arranged on the first sliding rail, the fixed block is, The third slide block is movably arranged on the first rotating rod and is rotatably sleeved on the first rotating shaft, the fourth slide block is movably arranged on the second rotating rod and is rotatably sleeved on the second rotating shaft, and the guide rod is fixedly arranged on the first fixed seat and the second fixed seat at two ends respectively and movably penetrates through the first internal thread block and the second internal thread block; one half of the screw is provided with a positive thread and the other half is provided with a reverse thread; the driving device drives the screw to rotate, so as to drive the first internal thread block and the second internal thread block to move relatively close to each other and drive the third slider and the fourth slider to move relatively close to each other, so as to drive the first rotating rod and the second rotating rod to rotate relatively close to each other, drive the first slider and the second slider to move relatively close to each other, complete the rise of the table plate, and drive the screw to rotate reversely to complete the fall of the table plate; the invention drives the screw rod to rotate through the driving device, so that the first internal thread block and the second internal thread block relatively move close to each other, the guide rod is arranged to enable the first internal thread block and the second internal thread block to move along the directions of the first internal thread block and the second internal thread block, the rotation of the first internal thread block and the second internal thread block in the moving process is avoided, even if the first internal thread block and the second internal thread block move along a straight line, the first internal thread block and the second internal thread block drive the third slide block and the fourth slide block to relatively close to each other in the relatively close moving process, so that the first rotating rod and the second rotating rod relatively close to each other to rotate, the third slide block and the fourth slide block are respectively positioned on the first rotating rod and the second rotating rod to move, the first slide block and the second slide block relatively close to each other, finally, the table plate is lifted, the teeth are arranged on the first rotating rod and the second rotating rod and are arranged in a meshed manner, so that the synchronism of the first rotating rod and the second rotating rod in, make the two rotation in-process laborsaving effect through above-mentioned first bull stick and second bull stick setting, can improve the degree of cooperation of screw rod and first internal thread piece and second internal thread piece through the guide bar setting, reduce the wearing and tearing of screw rod, through first elevating gear and second elevating gear bilateral symmetry formula elevating gear, the steady and synchronism of rising process is high, ensures the roughness of table, can ensure the fastness of support after rising.

The first lifting device further comprises a first support, a second support, a first groove, an equal distance and a plurality of first idler wheels, a second idler wheel, two third idler wheels, two fourth idler wheels and a first idler wheel, wherein the first support is sleeved on the first rotating shaft in a rotating mode, the second support is sleeved on the second rotating shaft in a rotating mode, the first groove is formed in the first support, the equal distance is rotated and arranged on the second support, the first idler wheels and the second idler wheels roll in the first groove, the first third idler wheels and the second idler wheels roll in the first groove, the first support is arranged on the first support, the second support is arranged on the second support, the second support is arranged on the first cabinet.

The first lifting device further comprises a plurality of first racks movably arranged on the first internal thread block at equal intervals, a plurality of second racks movably arranged on the first internal thread block between two adjacent first racks, a bottom plate fixedly arranged on the first cabinet body, a first wave groove arranged on the bottom plate, a second wave groove, two first balls arranged at two ends of the first racks and respectively positioned in the first wave groove and the second wave groove, two second balls arranged at two ends of the second racks and respectively positioned in the first wave groove and the second wave groove, a plurality of first gears rotatably arranged on the first internal thread block and respectively engaged with the first racks and the second racks, two first spring telescopic rods arranged at two ends of the first racks and used for resetting the first spring telescopic rods, and two second spring telescopic rods arranged at two ends of the second racks and used for resetting the second spring telescopic rods.

The first lifting device further comprises a first limiting block and a second limiting block which are fixedly arranged on the table plate, and a third spring telescopic rod, one end of the third spring telescopic rod is fixedly arranged on the fixing block, and the other end of the third spring telescopic rod is located in the middle of the first limiting block and the second limiting block.

The driving device comprises a second gear fixedly sleeved on the first lifting device screw, a third gear fixedly sleeved on the second lifting device screw, a driving shaft respectively rotatably arranged on the first cabinet body and the second cabinet body, a fourth gear fixedly sleeved on the driving shaft and meshed with the second gear, a fifth gear fixedly sleeved on the driving shaft and meshed with the third gear, and a motor for driving the driving shaft to rotate.

The first cabinet body comprises a main body, a drawer arranged in the main body, two second slide rails fixedly arranged on two inner walls of the main body, a second groove arranged on the second slide rails, a first inclined plane, a second inclined plane, a third inclined plane, a fourth inclined plane, a plurality of fifth rollers, a plurality of sixth rollers and a plurality of fourth rollers, wherein the first inclined plane, the second inclined plane, the third inclined plane and the fourth inclined plane are arranged in the second groove, the fifth rollers roll on the drawer and roll on the first inclined plane and the second inclined plane, the fifth rollers are arranged on the drawer in an interlaced mode, the fifth rollers are arranged on the drawer in an equidistant mode, and the sixth rollers roll on the third.

The first cabinet body further comprises a third groove arranged on the drawer, a third slide rail fixedly arranged on the main body, a first fixed shaft with one end fixedly arranged on the main body, a second fixed shaft with one end fixedly arranged on the drawer, a plurality of fifth slide blocks with equal distance and capable of being movably arranged on the third slide rail, a sixth slide block and a seventh slide block which are movably arranged on the fifth slide block, a plurality of third rotary shafts arranged between two adjacent fifth slide blocks, a fourth rotary shaft rotatably arranged on the sixth slide block, a fifth rotary shaft rotatably arranged on the seventh slide block, a third rotary rod rotatably sleeved on the third rotary shaft and provided with one end rotatably sleeved on the fourth rotary shaft and the other end rotatably sleeved on the fifth rotary shaft, a fourth rotary rod symmetrically rotatably sleeved on the third rotary shaft and provided with one end rotatably sleeved on the fourth rotary shaft and the other end rotatably sleeved on the first fixed shaft and provided with the other end rotatably sleeved on the fourth rotary shaft, a fifth rotary rod with one end rotatably sleeved on the first fixed shaft and provided with the other end rotatably sleeved on, One end of the first rotating rod is rotatably sleeved on the first fixed shaft, the other end of the first rotating rod is rotatably sleeved on the fifth rotating shaft, one end of the first rotating rod is rotatably sleeved on the second fixed shaft, the other end of the first rotating rod is rotatably sleeved on the fourth rotating shaft, the other end of the first rotating rod is rotatably sleeved on the second fixed shaft, the other end of the first rotating rod is rotatably sleeved on the fifth rotating shaft, the eighth rotating rod is fixedly sleeved on one end of the third rotating shaft, and one end of the third rotating rod is rotatably sleeved on the fixed plate and rolls and is positioned in the third groove; the three seventh rollers are distributed in an equilateral triangle; and the three seventh rollers on the adjacent fixed plates are symmetrically arranged.

The invention has the following advantages: the screw rod is driven to rotate by the driving device, so that the first internal thread block and the second internal thread block move relatively close to each other, the guide rod is arranged to enable the first internal thread block and the second internal thread block to move along the direction of the first internal thread block and the second internal thread block, the rotation of the first internal thread block and the second internal thread block in the moving process is avoided, even if the first internal thread block and the second internal thread block move along a straight line, the first internal thread block and the second internal thread block drive the third sliding block and the fourth sliding block to relatively close to each other in the relatively close moving process, so that the first rotating rod and the second rotating rod relatively close to each other and rotate, the third sliding block and the fourth sliding block are respectively positioned on the first rotating rod and the second rotating rod to move simultaneously, so that the first sliding block and the second sliding block relatively close to each other and finally the table plate rises, the teeth are arranged on the first rotating rod and the second rotating rod and are meshed with each other, so that the synchronism of the first rotating rod and the second rotating rod, make the two rotation in-process laborsaving effect through above-mentioned first bull stick and second bull stick setting, can improve the degree of cooperation of screw rod and first internal thread piece and second internal thread piece through the guide bar setting, reduce the wearing and tearing of screw rod, through first elevating gear and second elevating gear bilateral symmetry formula elevating gear, the steady and synchronism of rising process is high, ensures the roughness of table, can ensure the fastness of support after rising.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic front view of the present invention.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a partial sectional view taken along line a-a of fig. 2.

Fig. 5 is a partial sectional view taken along line B-B of fig. 2.

Fig. 6 is a partial sectional view taken along line C-C of fig. 2.

Fig. 7 is a partial sectional view taken along line D-D in fig. 4.

Fig. 8 is an enlarged view of fig. 7 at B.

Fig. 9 is a schematic view of a driving device.

Fig. 10 is a side view of the present invention.

Fig. 11 is a sectional view taken along line E-E of fig. 10.

Fig. 12 is an enlarged view of fig. 11 at C.

Fig. 13 is a partial sectional view taken along line G-G of fig. 11.

Fig. 14 is an enlarged view of fig. 13 at D.

Fig. 15 is a sectional view taken along line F-F in fig. 11.

Fig. 16 is an enlarged view at E in fig. 15.

Fig. 17 is a partial sectional view taken along line H-H in fig. 11.

Fig. 18 is a partial sectional view taken along line I-I in fig. 17.

Fig. 19 is an enlarged view of fig. 18 at F.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 19, a piece of combined office furniture comprises a first cabinet body 1, a second cabinet body 2 located at one side of the first cabinet body, a table plate 3 arranged above the first cabinet body and the second cabinet body, a first lifting device 4 and a second lifting device 5 for adjusting the height of the table plate, and a driving device 6 for driving the first lifting device and the second lifting device to operate; the first lifting device 4 comprises a first fixed seat 41 and a second fixed seat 42 which are fixedly arranged on the first cabinet body, a screw 43 with two ends respectively rotatably arranged on the first fixed seat and the second fixed seat, a first internal thread block 44 sleeved at one end of the screw, a second internal thread block 45 sleeved at the other end of the screw, a first rotating shaft 46 which is rotatably arranged on the first internal thread block, a second rotating shaft 47 which is rotatably arranged on the second internal thread block, a first slide rail 48 arranged on the table, a first slide block 49 and a second slide block 410 which are movably arranged on the first slide rail, a fixed block 411 arranged on the first cabinet body, a first rotating rod 412 with one end rotatably arranged on the fixed block and the other end rotatably arranged on the first slide block, a second rotating rod 413 with one end rotatably arranged on the fixed block and the other end rotatably arranged on the second slide block, a plurality of teeth which are equidistantly arranged on the first rotating rod, and a plurality of teeth which are equidistantly arranged on the second rotating rod with, A third sliding block 416 movably arranged on the first rotating rod and rotatably sleeved on the first rotating shaft, a fourth sliding block 417 movably arranged on the second rotating rod and rotatably sleeved on the second rotating shaft, and a guide rod 418, two ends of which are respectively fixedly arranged on the first fixing seat and the second fixing seat and movably arranged on the first internal thread block and the second internal thread block in a penetrating manner; one half of the screw is provided with a positive thread and the other half is provided with a reverse thread; the screw rod is driven to rotate by the driving device, so that the first internal thread block and the second internal thread block relatively approach to move, the first rotating shaft and the second rotating shaft relatively approach to move, the first internal thread block and the second internal thread block move along the direction of the first internal thread block and the second internal thread block through the guide rod, the rotation of the first internal thread block and the second internal thread block in the moving process is avoided, even if the first internal thread block and the second internal thread block move along a straight line, the first internal thread block and the second internal thread block drive the third slide block and the fourth slide block to relatively approach to each other in the moving process of relatively approaching, so that the first rotating rod and the second rotating rod relatively approach to rotate, the third slide block and the fourth slide block are respectively positioned on the first rotating rod and the second rotating rod to move, the first slide block and the second slide block relatively approach to move, finally the table plate is lifted, teeth are arranged on the first rotating rod and the second rotating rod and are meshed with each other, thereby it is better to make first bull stick and the relative rotation in-process synchronism of second bull stick, make the two rotate the in-process laborsaving effect through above-mentioned first bull stick and second bull stick setting, can improve the degree of cooperation of screw rod and first internal thread piece and second internal thread piece through the guide bar setting, reduce the wearing and tearing of screw rod, through first elevating gear and second elevating gear bilateral symmetry formula elevating gear, the steady and synchronism of rising process is high, ensure the roughness of table, can ensure the fastness of support after rising.

The first lifting device 4 further comprises a first support 419 rotatably sleeved on the first rotating shaft, a second support 420 rotatably sleeved on the second rotating shaft, a first groove 421 arranged on the first support, a plurality of first rollers 422 and second rollers 423 which are rotatably arranged on the second support at equal intervals and roll in the first groove, two third rollers 424 which are rotatably arranged on the first support and roll on the first cabinet body, and two fourth rollers 425 which are rotatably arranged on the second support and roll on the first cabinet body, wherein the first rollers and the second rollers are in one-to-one correspondence; the first support and the second support can be used for supporting one end of the first rotating shaft and one end of the second rotating shaft, so that the first rotating shaft and the second rotating shaft are prevented from being bent after being stressed, the first internal thread block and the second internal thread block are relatively close to each other and move relatively in the moving process, the first rotating shaft and the second rotating shaft are relatively close to each other and move relatively, the first support and the second support are relatively far away from each other in the moving process, namely the first rotating rod and the second rotating rod are relatively close to each other and move relatively in the rotating process, the first rotating rod and the second rotating rod can be better supported, the firmness in the supporting process of the first rotating rod and the second rotating rod is improved, the stability in the rising process of the table board is ensured, and the first support and the second support can be stressed together in the relative moving process through the first groove on the first support and the first roller and the second roller on the second support, the messenger can bear heavier table, can reduce the wearing and tearing of first support and second support through first gyro wheel and second gyro wheel setting, and the two removes the in-process straightness accuracy height, sets up the wearing and tearing that reduce between first support and the first cabinet body through third gyro wheel and fourth gyro wheel.

The first lifting device 4 further comprises a plurality of first racks 426 which are equidistantly and movably arranged on the first internal thread block, a plurality of second racks 427 which are positioned between two adjacent first racks and movably arranged on the first internal thread block, a bottom plate 428 which is fixedly arranged on the first cabinet body, a first wave groove 429 which is arranged on the bottom plate, and a second wave groove 430, two first rolling balls 431 arranged at two ends of the first rack and respectively positioned in the first wave groove and the second wave groove to roll, two second rolling balls 432 arranged at two ends of the second rack and respectively positioned in the first wave groove and the second wave groove to roll, a plurality of first gears 433 rotatably arranged on the first internal thread block and respectively engaged with the first rack and the second rack, two first spring telescopic rods 434 arranged at two ends of the first rack and used for resetting the first rack, and two second spring telescopic rods 435 arranged at two ends of the second rack and used for resetting the second rack; in the moving process of the first internal thread block, the two first balls are respectively positioned in the first wave groove and the second wave groove to roll, the two second balls are respectively positioned in the first wave groove and the second wave groove to roll, so that the first rack and the second rack relatively move, the synchronism of the relative movement of the first rack and the second rack can be improved again by the arrangement of the first gear, the first rack and the second rack can be reset through the arrangement of the first spring telescopic rod and the second spring telescopic rod, and improves the linkage of the first rack and the second rack, so that the first ball and the second ball can roll along the first wavy groove and the second wavy groove better, the arrangement reduces the reaction force on the first internal thread block, better protects the screw rod, prolongs the service life of the screw rod, the screw rod can be calibrated, the straightness of the screw rod is ensured, and the screw rod is better matched with the first internal thread block.

The first lifting device 4 further comprises a first limiting block 436 and a second limiting block 437 which are fixedly arranged on the table plate, and a third spring telescopic rod 438, one end of which is fixedly arranged on the fixed block, and the other end of which is positioned between the first limiting block and the second limiting block; through the setting of third spring telescopic link indirect relation between messenger's table and the first cabinet body, can prescribe a limit to third spring telescopic link one end through first stopper and the setting of second limiting plate, ensure that the table is located directly over the first cabinet body and the second cabinet body and rises or descend, avoid the table to rise or descend the in-process table dislocation, even the table can vertically rise or descend.

The driving device 6 comprises a second gear 61 fixedly sleeved on a screw of the first lifting device 4, a third gear 62 fixedly sleeved on a screw of the second lifting device 5, a driving shaft 63 respectively rotatably arranged on the first cabinet body and the second cabinet body, a fourth gear 64 fixedly sleeved on the driving shaft and meshed with the second gear, a fifth gear 65 fixedly sleeved on the driving shaft and meshed with the third gear, and a motor 66 for driving the driving shaft to rotate; the driving shaft is driven by the motor to rotate, so that the fourth gear and the fifth gear rotate in phase, the fourth gear is meshed with the second gear, the fifth gear is meshed with the third gear, the second gear and the third gear rotate in phase, the screw of the first lifting device 4 and the screw of the second lifting device 5 rotate in phase, and the first lifting device and the second lifting device can be driven to start simultaneously.

The first cabinet body 1 comprises a main body 11, a drawer 12 arranged in the main body, two second slide rails 13 fixedly arranged on two inner walls of the main body, a second groove 14 arranged on the second slide rails, a first inclined surface 15, a second inclined surface 16, a third inclined surface 17 and a fourth inclined surface 18 arranged in the second groove, a plurality of fifth rollers 19 which are equidistantly rotatably arranged on the drawer and roll on the first inclined surface and the second inclined surface, and a plurality of sixth rollers 110 which are alternately arranged with the plurality of fifth rollers and are equidistantly rotatably arranged on the drawer and roll on the third inclined surface and the fourth inclined surface; opening and closing in-process of drawer, make a plurality of fifth gyro wheels be located the second inslot on the second slide rail and roll, make a plurality of sixth gyro wheels be located the second inslot roll on the second slide rail, can improve the area of contact between fifth gyro wheel and the sixth gyro wheel through first inclined plane to fourth inclined plane setting, carry on spacingly to the both ends of fifth gyro wheel and sixth gyro wheel simultaneously, make better along the removal of second slide rail direction of drawer, can install more fifth gyro wheels and sixth gyro wheels through fifth gyro wheel and sixth gyro wheel position setting, make the drawer can adorn more heavy article.

The first cabinet 1 further includes a third groove 111 disposed on the drawer, a third slide rail 112 fixedly disposed on the main body, a first fixed shaft 113 having one end fixedly disposed on the main body, a second fixed shaft 114 having one end fixedly disposed on the drawer, a plurality of fifth sliders 115 movably disposed on the third slide rail at equal intervals, a sixth slider 116 and a seventh slider 117 movably disposed on the fifth sliders, a plurality of third rotating shafts 118 disposed between two adjacent fifth sliders, a fourth rotating shaft 119 rotatably disposed on the sixth slider, a fifth rotating shaft 120 rotatably disposed on the seventh slider, a third rotating rod 121 rotatably sleeved on the third rotating shaft and having one end rotatably sleeved on the fourth rotating shaft and the other end rotatably sleeved on the fifth rotating shaft, a fourth rotating rod 122 symmetrically rotatably sleeved on the third rotating shaft and having one end rotatably sleeved on the fourth rotating shaft and the other end rotatably sleeved on the fifth rotating shaft, a first rotating rod and a second rotating rod, A fifth rotating rod 123 with one end rotatably sleeved on the first fixed shaft and the other end rotatably sleeved on the fourth rotating shaft, a sixth rotating rod 124 with one end rotatably sleeved on the first fixed shaft and the other end rotatably sleeved on the fifth rotating shaft, a seventh rotating rod 125 with one end rotatably sleeved on the second fixed shaft and the other end rotatably sleeved on the fourth rotating shaft, an eighth rotating rod 126 with one end rotatably sleeved on the second fixed shaft and the other end rotatably sleeved on the fifth rotating shaft, a fixed plate 127 fixedly arranged on one end of the third rotating shaft, and three seventh rollers 128 with one ends rotatably arranged on the fixed plate and rolling in the third groove; the three seventh rollers are distributed in an equilateral triangle; the three seventh rollers on the adjacent fixing plates are symmetrically arranged; the first fixing shaft and the second fixing shaft are relatively far away from each other in the drawer opening process, the fifth rotating rod and the sixth rotating rod are relatively rotated, the seventh rotating rod and the eighth rotating rod are relatively rotated, the third rotating rod and the fourth rotating rod are relatively rotated, the third rotating shafts are equidistantly far away from each other, the sixth sliding block and the seventh sliding block are relatively close to each other and move, the fourth rotating shaft and the fifth rotating shaft are relatively close to each other and move, the fifth sliding blocks are equidistantly move, the first fixing shaft is fixedly arranged on the main body, the second fixing shaft is fixedly arranged on the drawer, therefore, the drawer opening moving distance can be limited through the arrangement, the drawer is prevented from being separated from the second sliding rail, meanwhile, the good supporting effect is achieved on the opened drawer, the cooperation between the fifth roller and the sixth roller and the second sliding rail is better protected, the equidistant fixing plate is far away from each other in the third rotating shaft equidistant keeping process, and the seventh roller is positioned in the third groove to roll, the seventh idler wheel can be used for avoiding the fixed plate from rotating in the moving process, so that the fixed plate only moves, namely the third rotating shaft is positioned in the third groove to move, the seventh idler wheel is used for reducing the resistance or abrasion suffered by the third rotating shaft in the moving process, the third groove is used for ensuring the straightness in the moving process of the third rotating shaft, the drawer can be better supported by the arrangement, the effect is equivalent to a reinforcing rib effect, and the service life of the whole drawer is prolonged; the seventh rollers are distributed and arranged to enable the number of the seventh rollers which are positioned on the upper wall and the lower wall of the third groove to roll to be consistent, so that the seventh rollers are stressed uniformly and are evenly distributed by the gravity of the drawer.

The motor is commercially available.

Claims

1. A modular office furniture which characterized in that: the table comprises a first cabinet body (1), a second cabinet body (2) positioned on one side of the first cabinet body, a table plate (3) arranged above the first cabinet body and the second cabinet body, a first lifting device (4) and a second lifting device (5) for adjusting the height of the table plate, and a driving device (6) for driving the first lifting device and the second lifting device to operate; the first lifting device (4) comprises a first fixed seat (41) and a second fixed seat (42) which are fixedly arranged on the first cabinet body, a screw rod (43) with two ends respectively rotatably arranged on the first fixed seat and the second fixed seat, a first internal thread block (44) sleeved at one end of the screw rod, a second internal thread block (45) sleeved at the other end of the screw rod, a first rotating shaft (46) which is rotatably arranged on the first internal thread block in a penetrating manner, a second rotating shaft (47) which is rotatably arranged on the second internal thread block in a penetrating manner, a first sliding rail (48) arranged on the table plate, a first sliding block (49) and a second sliding block (410) which are movably arranged on the first sliding rail, a fixed block (411) arranged on the first cabinet body, one end of the first rotating rod (412) which is rotatably arranged on the fixed block and the other end of the first rotating rod is rotatably arranged on the first sliding block, one end of the second, The gear rack comprises a plurality of teeth which are equidistantly arranged on a first rotating rod, a plurality of tooth sockets which are meshed with the teeth and are equidistantly arranged on a second rotating rod, a third sliding block (416) which is movably arranged on the first rotating rod and is rotatably sleeved on a first rotating shaft, a fourth sliding block (417) which is movably arranged on the second rotating rod and is rotatably sleeved on a second rotating shaft, and a guide rod (418) of which the two ends are respectively fixedly arranged on a first fixed seat and a second fixed seat and movably arranged on a first internal thread block and a second internal thread block in a penetrating way; half of the screw rod is set for positive thread and the other half is set for reverse thread.

2. A modular office furniture piece according to claim 1, wherein: the first lifting device (4) further comprises a first support (419) which is rotatably sleeved on the first rotating shaft, a second support (420) which is rotatably sleeved on the second rotating shaft, a first groove (421) which is arranged on the first support, a plurality of first rollers (422) and second rollers (423) which are arranged on the second support and are positioned in the first groove in a rotating mode, two third rollers (424) which are arranged on the first support and are positioned in the first cabinet body in a rotating mode, and two fourth rollers (425) which are arranged on the second support and are positioned in the first cabinet body in a rotating mode, wherein the first rollers and the second rollers are in one-to-one correspondence.

3. A modular office furniture piece according to claim 1, wherein: the first lifting device (4) further comprises a plurality of first racks (426) which are equidistantly and movably arranged on the first internal thread block, a plurality of second racks (427) which are positioned between two adjacent first racks and movably arranged on the first internal thread block, a bottom plate (428) fixedly arranged on the first cabinet body, a first wave groove (429) and a second wave groove (430) which are arranged on the bottom plate, two first balls (431) which are arranged at two ends of the first racks and respectively positioned in the first wave groove and the second wave groove and roll, two second balls (432) which are arranged at two ends of the second racks and respectively positioned in the first wave groove and the second wave groove, a plurality of first gears (433) which are rotatably arranged on the first internal thread block and respectively engaged with the first racks and the second racks, and two first spring telescopic rods (434) which are arranged at two ends of the first racks and are used for resetting the first internal thread block, Two second spring telescopic rods (435) arranged at two ends of the second rack and used for resetting the second rack.

4. A modular office furniture piece according to claim 1, wherein: the first lifting device (4) further comprises a first limiting block (436) and a second limiting block (437) which are fixedly arranged on the table plate, and a third spring telescopic rod (438) with one end fixedly arranged on the fixed block and the other end positioned in the middle of the first limiting block and the second limiting block.

5. A modular office furniture piece according to claim 1, wherein: the driving device (6) comprises a second gear (61) fixedly sleeved on a screw rod of the first lifting device (4), a third gear (62) fixedly sleeved on a screw rod of the second lifting device (5), a driving shaft (63) respectively rotatably arranged on the first cabinet body and the second cabinet body, a fourth gear (64) fixedly sleeved on the driving shaft and meshed with the second gear, a fifth gear (65) fixedly sleeved on the driving shaft and meshed with the third gear, and a motor (66) for driving the driving shaft to rotate.

6. A modular office furniture piece according to claim 1, wherein: the first cabinet body (1) comprises a main body (11), a drawer (12) arranged in the main body, two second slide rails (13) fixedly arranged on two inner walls of the main body, a second groove (14) arranged on the second slide rails, a first inclined plane (15) arranged in the second groove, a second inclined plane (16), a third inclined plane (17) and a fourth inclined plane (18), a plurality of fifth rollers (19) which are arranged on the drawer in an equidistant rotating mode and roll on the first inclined plane and the second inclined plane, and a plurality of sixth rollers (110) which are arranged on the drawer in an equidistant rotating mode and roll on the third inclined plane and the fourth inclined plane in a staggered mode.

7. The modular office furniture of claim 6, wherein: the first cabinet body (1) further comprises a third groove (111) arranged on the drawer, a third sliding rail (112) fixedly arranged on the main body, a first fixing shaft (113) with one end fixedly arranged on the main body, a second fixing shaft (114) with one end fixedly arranged on the drawer, a plurality of fifth sliding blocks (115) movably arranged on the third sliding rail at equal intervals, a sixth sliding block (116) and a seventh sliding block (117) movably arranged on the fifth sliding block, a plurality of third rotating shafts (118) arranged between every two adjacent fifth sliding blocks, a fourth rotating shaft (119) rotatably arranged on the sixth sliding block, a fifth rotating shaft (120) rotatably arranged on the seventh sliding block, a third rotating rod (121) rotatably sleeved on the third rotating shaft and with one end rotatably sleeved on the fourth rotating shaft and the other end rotatably sleeved on the fifth rotating shaft, and a fourth rotating rod (122) rotatably sleeved on the fifth rotating shaft and symmetrically arranged on the third rotating rod and with one end rotatably sleeved on the fourth rotating shaft and the other end rotatably sleeved on the fourth rotating shaft, A fifth rotating rod (123) with one end rotatably sleeved on the first fixed shaft and the other end rotatably sleeved on the fourth rotating shaft, a sixth rotating rod (124) with one end rotatably sleeved on the first fixed shaft and the other end rotatably sleeved on the fifth rotating shaft, a seventh rotating rod (125) with one end rotatably sleeved on the second fixed shaft and the other end rotatably sleeved on the fourth rotating shaft, an eighth rotating rod (126) with one end rotatably sleeved on the second fixed shaft and the other end rotatably sleeved on the fifth rotating shaft, a fixed plate (127) fixedly arranged on one end of the third rotating shaft, and three seventh rollers (128) with one ends rotatably arranged on the fixed plate and rolling in the third groove; the three seventh rollers are distributed in an equilateral triangle; and the three seventh rollers on the adjacent fixed plates are symmetrically arranged.