Lift table

Abstract

The utility model is suitable for the technical field of table, disclose a kind of lifting table. The lifting table includes table board, support leg assembly and drive assembly, support leg assembly includes first support leg and second support leg, first support leg includes first main support component and first auxiliary support component, second support leg includes second main support component and second auxiliary support component;The top of first main support component, second main support component, first auxiliary support component and second auxiliary support component is respectively movably connected in the bottom of table board;The bottom of first auxiliary support component is rotatably connected in first main support component, and the bottom of second auxiliary support component is rotatably connected in second main support component;Drive assembly is at least one transmission connection in first main support component, second main support component, first auxiliary support component, second auxiliary support component, to be used for driving support leg assembly to drive table board to ascend or descend. The application improves the stability of support leg assembly supporting table board.

Description

Technical Field

[0001] This utility model relates to the field of table technology, and in particular to a height-adjustable table. Background Technology

[0002] The related technology provides a height-adjustable desk, including a tabletop, a base, an X-shaped support leg assembly, and a gas spring. The base is located below the tabletop. The X-shaped support leg assembly includes two support legs that are X-shaped and cross each other between the tabletop and the base. The gas spring is inclinedly connected from the base between the tabletop and the base to drive the X-shaped support leg assembly to move the tabletop up and down, thereby adjusting the distance between the tabletop and the base.

[0003] The lifting desks provided by the above-mentioned related technologies have the following shortcomings in specific applications: (1) In the X-shaped support leg assembly, one of the two cross-arranged support legs forms a sliding support point with the base on one side of the tabletop. Therefore, when the X-shaped support leg assembly supports the tabletop, the sliding support point is prone to displacement when the tabletop is under force, resulting in poor stability after the tabletop is supported and raised by the X-shaped support leg assembly. (2) Due to the limitation of the X-shaped structure, the sliding stroke of the top of the two support legs cannot exceed half the length of the edge of the tabletop, thus limiting the lifting stroke of the tabletop and making it impossible to achieve a large lifting of the tabletop. (3) After the X-shaped support leg assembly supports the tabletop, in addition to the exposed X-shaped support leg assembly, there are many exposed parts under the tabletop, such as gas springs and slide rails on the base, which seriously affects the aesthetics of the lifting desk. Utility Model Content

[0004] The first objective of this utility model is to provide a height-adjustable table that solves the technical problem of poor stability in related technology height-adjustable tables after the tabletop is raised by the support leg assembly.

[0005] To achieve the above objectives, the present invention provides a height-adjustable desk, comprising:

[0006] Tabletop;

[0007] A support leg assembly, the support leg assembly being connected to the bottom of the tabletop for supporting the tabletop;

[0008] A drive assembly, which is connected to the support leg assembly, is used to drive the support leg assembly to raise or lower the tabletop.

[0009] The support leg assembly includes a first support leg and a second support leg. The first support leg includes a first main support component and a first auxiliary support component, and the second support leg includes a second main support component and a second auxiliary support component.

[0010] The bottom ends of the first main support member and the bottom ends of the second main support member are spaced apart below the tabletop along the first horizontal direction;

[0011] The top ends of the first main support member, the second main support member, the first auxiliary support member, and the second auxiliary support member are movably connected to the bottom of the tabletop.

[0012] The bottom end of the first auxiliary support member is rotatably connected to the first main support member, and the bottom end of the second auxiliary support member is rotatably connected to the second main support member;

[0013] The drive assembly is connected to at least one of the first main support member, the second main support member, the first auxiliary support member, and the second auxiliary support member for driving the first main support member and the second main support member to move in opposite directions, thereby driving the support leg assembly to raise or lower the table.

[0014] In one embodiment, in the first horizontal direction, the top end of the first main support member and the top end of the second main support member are located between the top end of the first auxiliary support member and the top end of the second auxiliary support member.

[0015] In one embodiment, the bottom end of the first auxiliary support member is rotatably connected to the portion of the first main support member located between the top and bottom ends, and the bottom end of the second auxiliary support member is rotatably connected to the portion of the second main support member located between the top and bottom ends.

[0016] In one embodiment, the bottom end of the first auxiliary support member is rotatably connected to the bottom end of the first main support member, and the bottom end of the second auxiliary support member is rotatably connected to the bottom end of the second main support member.

[0017] In one embodiment, the first main support member includes a first part and a second part, the upper part of the first part is movably connected to the bottom of the tabletop, the lower part of the first part is connected to the second part, and the second part extends along a second horizontal direction.

[0018] The second main support component includes a third part and a fourth part. The upper part of the third part is movably connected to the bottom of the tabletop, and the lower part of the third part is connected to the fourth part. The fourth part extends along the second horizontal direction.

[0019] Wherein, the first horizontal direction is perpendicular to the second horizontal direction.

[0020] In one embodiment, the first main support component includes two first support rods spaced apart in the second horizontal direction, and the top ends of the two first support rods are respectively movably connected to the bottom of the tabletop;

[0021] The second main support component includes two second support rods spaced apart in the second horizontal direction, and the top ends of the two second support rods are respectively movably connected to the bottom of the tabletop;

[0022] In the second horizontal direction, the two first supports are located between the two second supports;

[0023] The first horizontal direction is perpendicular to the second horizontal direction.

[0024] In one embodiment, the first main support member further includes a first connecting component, which is connected between the upper parts of the two first support rods; the drive assembly is drively connected to the first connecting component.

[0025] And / or, the first main support member further includes a second connecting component, the second connecting component being connected between the lower parts of the two first support rods, and the second main support member further includes a third connecting component, the third connecting component being connected between the lower parts of the two second support rods.

[0026] In one embodiment, the first main support member further includes a fourth connecting component, which is connected between the middle portions of the two first support rods, and the bottom end of the first auxiliary support member is rotatably connected to the fourth connecting component.

[0027] The second main support member further includes a fifth connecting component, which is connected between the middle portions of the two second support rods, and the bottom end of the second auxiliary support member is rotatably connected to the fifth connecting component.

[0028] In one embodiment, the first auxiliary support member includes two third support rods spaced apart in the second horizontal direction and a sixth connecting component connecting the upper parts of the two third support rods, wherein the bottom ends of the two third support rods are rotatably connected to the fourth connecting component.

[0029] The second auxiliary support component includes two fourth support rods spaced apart in the second horizontal direction and a seventh connecting component connecting the upper parts of the two fourth support rods. The bottom ends of the two fourth support rods are rotatably connected to the fifth connecting component.

[0030] In one embodiment, the distance from the connection point between the first main support member and the first auxiliary support member along the length direction of the first main support member to the top of the first main support member is equal to the length of the first auxiliary support member.

[0031] The distance from the connection point between the second main support member and the second auxiliary support member along the length of the second main support member to the top of the second main support member is equal to the length of the second auxiliary support member.

[0032] In one embodiment, the distance from the connection point between the first main support member and the first auxiliary support member along the length direction of the first main support member to the bottom end of the first main support member is equal to the length of the first auxiliary support member, and the distance from the connection point between the second main support member and the second auxiliary support member along the length direction of the second main support member to the bottom end of the second main support member is equal to the length of the second auxiliary support member.

[0033] In one embodiment, the top ends of the first main support member and the top ends of the second main support member are respectively rotatably connected to the bottom of the tabletop in a manner that allows them to move relative to the tabletop in the first horizontal direction;

[0034] The drive assembly is used to drive the first support leg and the second support leg to move in opposite directions, so as to drive the support leg assembly to raise or lower the table.

[0035] In one embodiment, the drive assembly is drively connected to at least one of the top ends of the first main support member and the second main support member to drive the top ends of the first main support member and the second main support member to move in opposite directions, respectively.

[0036] In one implementation, the drive assembly includes a power source and a first transmission mechanism;

[0037] The top end of the first main support member and the top end of the second main support member are connected to the power source for transmission.

[0038] The first transmission mechanism is connected between the top end of the first main support member and the top end of the second main support member, so as to drive the other of the top ends of the first main support member and the second main support member to move in opposite directions when one of the top ends of the first main support member and the second main support member moves under the drive of the power source.

[0039] In one embodiment, the height-adjustable table further includes a first moving member and a second moving member. The top end of the first main support member is rotatably connected to the first moving member and is movably connected to the bottom of the tabletop along the first horizontal direction through the first moving member. The top end of the second main support member is rotatably connected to the second moving member and is movably connected to the bottom of the tabletop along the first horizontal direction through the second moving member.

[0040] The power source is connected to one of the first moving part and the second moving part in a transmission connection.

[0041] The first transmission mechanism is connected between the first moving member and the second moving member to drive the other moving member in the opposite direction when one of the first moving member and the second moving member moves under the drive of the power source.

[0042] In one embodiment, the first transmission mechanism includes a pulley transmission mechanism;

[0043] Alternatively, the first transmission mechanism may include a sprocket and chain transmission mechanism;

[0044] Alternatively, the first transmission mechanism may include a combination of a pulley transmission mechanism and a sprocket and chain transmission mechanism.

[0045] In one embodiment, the first transmission mechanism includes a first guide wheel, a first flexible traction member, a second guide wheel, and a second flexible traction member;

[0046] The first guide wheel and the second guide wheel are spaced apart along the first horizontal direction at the bottom of the tabletop and are rotatably connected to the tabletop respectively;

[0047] The first flexible traction member is wound around the first guide wheel, and both ends of the first flexible traction member extend toward the side where the second guide wheel is located and are respectively connected to the first moving member and the second moving member;

[0048] The second flexible traction member is wound around the second guide wheel, and both ends of the second flexible traction member extend toward the side where the first guide wheel is located and are respectively connected to the first moving member and the second moving member.

[0049] In one embodiment, one end of the first flexible traction member is provided with a first positioning member in the shape of a column or a ball, and the other end is provided with a second positioning member in the shape of a column or a ball. One end of the first flexible traction member is connected to the first moving member through the locking cooperation between the first positioning member and the first moving member, and the other end of the first flexible traction member is connected to the second moving member through the locking cooperation between the second positioning member and the second moving member.

[0050] One end of the second flexible traction member is provided with a third positioning member in the shape of a column or a ball, and the other end is provided with a fourth positioning member in the shape of a column or a ball. One end of the second flexible traction member is connected to the first moving member through the locking cooperation of the third positioning member and the first moving member. The other end of the second flexible traction member is connected to the second moving member through the locking cooperation of the fourth positioning member and the second moving member.

[0051] In one embodiment, the first moving member has a first positioning groove, a first through groove, and a second through groove. The width of the first positioning groove extending along the first horizontal direction is greater than the sum of the diameters of the first positioning member and the third positioning member. The first positioning member and the third positioning member are respectively installed in the first positioning groove and respectively abut against the two side walls of the first positioning groove that are spaced apart and opposite to each other in the first horizontal direction. The first through groove and the second through groove extend from opposite sides of the first moving member in the first horizontal direction to the first positioning groove. The portion of the first flexible traction member near the first positioning member passes through the first through groove, and the portion of the second flexible traction member near the third positioning member passes through the second through groove.

[0052] And / or, the second moving member has a second positioning groove, a third through groove and a fourth through groove. The width of the second positioning groove extending along the first horizontal direction is greater than the sum of the diameters of the second positioning member and the fourth positioning member. The second positioning member and the fourth positioning member are respectively installed in the second positioning groove and respectively abut against the two side walls of the second positioning groove that are spaced apart and opposite to each other in the first horizontal direction. The third through groove and the fourth through groove extend from the opposite sides of the second moving member in the first horizontal direction to the second positioning groove. The portion of the first flexible traction member near the second positioning member passes through the third through groove, and the portion of the second flexible traction member near the fourth positioning member passes through the fourth through groove.

[0053] In one embodiment, the first transmission mechanism is a pulley transmission mechanism, both the first guide wheel and the second guide wheel are fixed pulleys, the first flexible traction member is a traction rope or metal wire, and the second flexible traction member is a traction rope or metal wire;

[0054] Alternatively, the first transmission mechanism is a combination of a pulley transmission mechanism and a sprocket and chain transmission mechanism, the first guide wheel is a fixed pulley, the first flexible traction member is a traction rope or metal wire, the second guide wheel is a sprocket, and the second flexible traction member is a chain;

[0055] Alternatively, the first transmission mechanism is a sprocket and chain transmission mechanism, where both the first guide wheel and the second guide wheel are sprockets, and both the first flexible traction member and the second flexible traction member are chains.

[0056] In one embodiment, the lifting table further includes a tension adjustment mechanism connected to at least one of the first guide wheel and the second guide wheel, and the tension adjustment mechanism is configured to adjust the distance between the first guide wheel and the second guide wheel under the action of an external force, so as to change the tension of at least one of the first flexible traction member and the second flexible traction member.

[0057] In one embodiment, the height-adjustable table further includes a first guide rail, which is integrally formed with a first guide slide and a second guide slide. The first guide slide and the second guide slide both extend along the first horizontal direction and are spaced apart in the second horizontal direction.

[0058] The first movable component is slidably connected to the first guide portion;

[0059] The second movable member is slidably connected to the second guide portion;

[0060] Wherein, the first horizontal direction is perpendicular to the second horizontal direction.

[0061] In one embodiment, the number of the first guide rail, the number of the first movable component, and the number of the second movable component are all two. The two first guide rails are spaced apart in the second horizontal direction. Each first guide rail is slidably mounted with one first movable component and one second movable component. The top end of the first main support component is rotatably connected to the two first movable components. The top end of the second main support component is rotatably connected to the two second movable components. The power source is connected to the two first movable components or the two second movable components in a transmission connection.

[0062] Alternatively, the number of the first guide rail, the number of the first moving parts, and the number of the second moving parts are all one; the top end of the first main support member is rotatably connected to the first moving part; the top end of the second main support member is rotatably connected to the second moving part. In one embodiment, the first guide slide and the second guide slide are integrally formed on the first guide rail as a first slide groove and a second slide groove.

[0063] And / or, the first moving part is a slider, a roller, or a bearing, and the second moving part is a slider, a roller, or a bearing.

[0064] In one embodiment, the first transmission mechanism is a gear and rack transmission mechanism, which includes a first rack, a first gear, and a second rack. The first rack, the first gear, and the second rack are distributed sequentially along a second horizontal direction, and the first rack and the second rack are movably connected to the bottom of the tabletop along the first horizontal direction. The first gear is rotatably mounted on the bottom of the tabletop, and the opposite sides of the first gear mesh with the first rack and the second rack, respectively.

[0065] The top end of the first main support member is rotatably connected to the first rack and is movably connected to the bottom of the tabletop along the first horizontal direction via the first rack.

[0066] The top end of the second main support member is rotatably connected to the second rack and is movably connected to the bottom of the tabletop along the first horizontal direction via the second rack;

[0067] The power source is driveably connected to one of the first rack and the second rack to drive one of the first rack and the second rack to move along the first horizontal direction, and to drive the other of the first rack and the second rack to move in the opposite direction via the first gear; or, the power source is driveably connected to the first gear to drive the first gear to drive the first rack and the second rack to move in the opposite direction.

[0068] The first horizontal direction is perpendicular to the second horizontal direction.

[0069] In one embodiment, the height-adjustable table further includes a second guide rail, the second guide rail having a third guide slide portion and a fourth guide slide portion, the third guide slide portion and the fourth guide slide portion both extending along the first horizontal direction and being spaced apart in the second horizontal direction;

[0070] The first rack is slidably connected to the third guide portion;

[0071] The second rack is slidably connected to the fourth guide portion.

[0072] In one embodiment, the power source is an electric motor, and the drive assembly further includes a screw transmission mechanism. The electric motor is connected to one of the top ends of the first main support member and the second main support member via the screw transmission mechanism.

[0073] Alternatively, the power source is a gas spring, which has a first telescopic rod that can extend and retract, and the first telescopic rod is connected to one of the top end of the first main support member and the top end of the second main support member.

[0074] Alternatively, the power source is an electric actuator, which has a second telescopic rod that can extend and retract, and the second telescopic rod is connected to one of the top ends of the first main support member and the second main support member.

[0075] In one implementation, the drive assembly includes a power source and a second transmission mechanism;

[0076] The power source is one, and the power source is connected to the top of the first main support member and the top of the second main support member respectively through the second transmission mechanism, so as to drive the top of the first main support member and the top of the second main support member to move in opposite directions.

[0077] In one embodiment, the second transmission mechanism includes a first screw, a second screw, a first nut, a second nut, and a transmission assembly;

[0078] The first screw and the second screw are distributed sequentially along the second horizontal direction, and both the first screw and the second screw extend along the first horizontal direction and are rotatably connected to the bottom of the table.

[0079] The first nut is threadedly connected to the first screw;

[0080] The second nut is threadedly connected to the second screw;

[0081] The top end of the first main support member is rotatably connected to the first nut, and the top end of the second main support member is rotatably connected to the second nut;

[0082] The power source is an electric motor, which is connected to the first screw and the second screw respectively via the transmission assembly;

[0083] Wherein, the helical direction of the first screw is opposite to that of the second screw, and the motor drives the first screw and the second screw to rotate in the same direction through the transmission assembly, thereby driving the first nut and the second nut to move the top ends of the first main support member and the top ends of the second main support member in opposite directions;

[0084] Alternatively, the helical direction of the first screw is the same as that of the second screw, and the motor drives the first screw and the second screw to rotate in opposite directions through the transmission assembly, thereby driving the first nut and the second nut to move the top ends of the first main support member and the top ends of the second main support member in opposite directions;

[0085] The first horizontal direction is perpendicular to the second horizontal direction.

[0086] In one embodiment, when the helical direction of the first screw is opposite to that of the helical direction of the second screw, the transmission assembly includes a second gear, a third gear, and a fourth gear;

[0087] The third gear is connected to or integrally formed with the first screw;

[0088] The fourth gear is connected to or integrally formed with the second screw;

[0089] The second gear is rotatably mounted on the bottom of the tabletop, and the opposite sides of the second gear mesh with the third gear and the fourth gear, respectively;

[0090] The motor is connected to the second gear transmission to drive the second gear to rotate and drive the third gear and the fourth gear to rotate, thereby driving the first screw and the second screw to rotate in the same direction.

[0091] In one embodiment, the second transmission mechanism includes a third screw, a third nut, and a fourth nut;

[0092] The third screw is rotatably connected to the bottom of the tabletop, and the third screw has a first spiral portion and a second spiral portion. The first spiral portion and the second spiral portion extend along the first horizontal direction, and the spiral direction of the first spiral portion is opposite to that of the second spiral portion.

[0093] The third nut is threadedly connected to the first helical portion;

[0094] The fourth nut is threadedly connected to the second helical portion;

[0095] The top end of the first main support member is rotatably connected to the third nut, and the top end of the second main support member is rotatably connected to the fourth nut;

[0096] The power source is an electric motor, which is connected to the third screw drive to drive the third screw to rotate, thereby driving the third nut and the fourth nut to move the top ends of the first main support member and the second main support member in opposite directions.

[0097] In one embodiment, the drive assembly includes a power source mounted on the bottom of the tabletop.

[0098] In one implementation, the drive assembly includes a power source, which is a motor, and the lifting table also includes a main control board, which is electrically connected to the motor to control the motor to work according to a trigger command.

[0099] The main control board is configured to, in response to the trigger command, control the motor to sequentially perform the following actions to drive the support leg assembly to raise or lower the tabletop: control the motor to operate in a first working mode during a first time period, control the motor to operate in a second working mode during a second time period, and control the motor to operate in a third working mode during a third time period, so that the speed at which the tabletop rises during the first time period and the speed at which the tabletop rises during the third time period are both less than the speed at which the tabletop rises during the second time period, or that the speed at which the tabletop falls during the first time period and the speed at which the tabletop falls during the third time period are both less than the speed at which the tabletop falls during the second time period.

[0100] As one implementation, controlling the motor to operate in a first operating mode during a first time period includes: controlling the motor to operate in a manner in which the drive voltage linearly increases from zero to a target voltage during the first time period;

[0101] The control of the motor to operate in a second operating mode during the second time period includes: controlling the motor to operate in a manner in which the drive voltage is maintained at the target voltage during the second time period;

[0102] The control of the motor to operate in a third operating mode during the third time period includes: controlling the motor to operate in a manner in which the drive voltage linearly decreases from the target voltage to zero during the third time period.

[0103] In one embodiment, the height-adjustable desk also includes a control device, which is mounted on the desk panel and connected to the power source and the main control board, respectively, for use by the user to send the trigger command to the main control board.

[0104] In one embodiment, the height-adjustable table also includes a battery, and the main control board is electrically connected to the battery, the motor, and the control device, respectively. The battery is used to supply power to the motor and the control device through the main control board.

[0105] And / or, the height-adjustable table also includes a power cord, and the main control board is electrically connected to the power cord, the motor, and the control device respectively. The power cord is used to electrically connect to a power supply device independent of the height-adjustable table and to supply power to the motor and the control device through the main control board.

[0106] In one embodiment, the drive assembly includes a power source, which is a gas spring;

[0107] The support leg assembly further includes a damping component, which is disposed between the bottom end of the first auxiliary support member and the first main support member, to reduce the speed at which the support leg assembly drives the table to descend during the process of the gas spring driving the support leg assembly to descend.

[0108] In one embodiment, the tabletop is provided with a support groove for placing and positioning a mobile phone or tablet computer;

[0109] And / or, the tabletop is equipped with a cable organizer for securing and positioning cables.

[0110] In one embodiment, the height-adjustable desk further includes a keyboard tray, the desk panel having a first front edge extending along the first horizontal direction, and the keyboard tray extending from below the desk panel along a second horizontal direction protruding beyond the first front edge;

[0111] The first horizontal direction is perpendicular to the second horizontal direction.

[0112] In one embodiment, the keyboard tray has a second front edge extending along the first horizontal direction and disposed away from the tabletop, the second front edge forming an arcuate edge that is concave relative to its two ends;

[0113] And / or, the tabletop also has a first rear edge and a clearance groove, the first front edge and the first rear edge are arranged at intervals opposite each other in the second horizontal direction, and the clearance groove is recessed from the first front edge toward the first rear edge.

[0114] In one embodiment, the height-adjustable table further includes a height-adjusting platform. The tabletop has a first front edge and a first rear edge that are spaced apart and opposite to each other in the second horizontal direction. The height-adjusting platform extends upward from the top of the tabletop, and the distance from the height-adjusting platform to the first rear edge is less than the distance to the first front edge.

[0115] The second objective of this utility model is to provide a height-adjustable desk, comprising:

[0116] A support leg assembly, the support leg assembly being connected to the bottom of the tabletop for supporting the tabletop;

[0117] A drive assembly, including a motor, is connected to the support leg assembly for driving the support leg assembly to raise or lower the tabletop;

[0118] A main control board, which is electrically connected to the motor, for controlling the operation of the motor;

[0119] The main control board is configured to, in response to a trigger command, control the motor to sequentially perform the following actions to drive the support leg assembly to raise or lower the tabletop: control the motor to operate in a first working mode during a first time period, control the motor to operate in a second working mode during a second time period, and control the motor to operate in a third working mode during a third time period, so that the speed at which the tabletop rises during the first time period and the speed at which the tabletop rises during the third time period are both less than the speed at which the tabletop rises during the second time period, or that the speed at which the tabletop falls during the first time period and the speed at which the tabletop falls during the third time period are both less than the speed at which the tabletop falls during the second time period.

[0120] As one implementation, controlling the motor to operate in a first operating mode during a first time period includes: controlling the motor to operate in a manner in which the drive voltage linearly increases from zero to a target voltage during the first time period;

[0121] The control of the motor to operate in a second operating mode during the second time period includes: controlling the motor to operate in a manner in which the drive voltage is maintained at the target voltage during the second time period;

[0122] The control of the motor to operate in a third operating mode during the third time period includes: controlling the motor to operate in a manner in which the drive voltage linearly decreases from the target voltage to zero during the third time period.

[0123] The first objective of this utility model is to provide a height-adjustable table that uses a drive assembly connected to a support leg assembly to drive the support leg assembly to raise or lower the tabletop, thereby achieving the tabletop's height adjustment function. Furthermore, the first support leg is configured to include a first main support member and a first auxiliary support member, and the second support leg is configured to include a second main support member and a second auxiliary support member. The bottom ends of the first and second main support members are spaced apart along a first horizontal direction below the tabletop. The top ends of the first and second main support members, the first auxiliary support member, and the second auxiliary support member are movably connected to the bottom of the tabletop. The bottom end of the first auxiliary support member is rotatably connected to the first main support member, and the bottom end of the second auxiliary support member is rotatably connected to the second main support member. Thus, the tabletop can be raised or lowered by... Since there is no guide rail structure at the bottom of the support leg assembly to guide the sliding of the support legs, on the one hand, the bottom ends of the first support leg and the second support leg can form relatively fixed support points on two opposite sides under the tabletop. When the support leg assembly supports the tabletop, the support points formed by the bottom ends of the first and second support legs will not shift in position when the tabletop is under force, thereby improving the stability of the tabletop after it is supported and raised by the support leg assembly. On the other hand, it can effectively simplify the structure of the height-adjustable table and reduce the number of exposed parts under the tabletop after the support leg assembly supports the tabletop, thereby improving the aesthetics of the height-adjustable table.

[0124] The second objective of this utility model is to provide a height-adjustable desk that uses a motor connected to a support leg assembly to drive the support leg assembly to raise or lower the desk panel, thereby achieving the desk panel's height adjustment function. Furthermore, the main control board controls the motor to operate in different modes during the three periods before, during, and after a cycle of driving the support leg assembly to raise or lower the desk panel. This ensures that the desk panel's raising and lowering speed is lower in the first and last periods than in the middle period, achieving a control scheme where the motor uses a slow start and slow stop in the first and last periods respectively. This helps ensure the smoothness and stability of the desk panel's raising and lowering process, improving user comfort when using the height-adjustable desk. Attached Figure Description

[0125] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0126] Figure 1This is a three-dimensional schematic diagram of a lifting table with frame-type support legs, a motor, and a pulley transmission mechanism provided in this embodiment of the utility model in its unfolded state;

[0127] Figure 2 yes Figure 1 A 3D illustration of the height-adjustable desk from another perspective;

[0128] Figure 3 yes Figure 1 A 3D diagram of the height-adjustable desk in its folded state;

[0129] Figure 4 yes Figure 3 A 3D illustration of the height-adjustable desk from another perspective;

[0130] Figure 5 yes Figure 1 Exploded view of the height-adjustable desk;

[0131] Figure 6 This is a schematic diagram showing the connection between the first transmission mechanism and the first and second moving parts, which employ a pulley transmission mechanism, provided in an embodiment of this utility model.

[0132] Figure 7 This is a three-dimensional schematic diagram of the first guide rail provided in this embodiment of the utility model;

[0133] Figure 8 This is a schematic diagram showing that the first flexible traction member and the second flexible traction member provided in this embodiment of the utility model are connected to the first moving member and the second moving member by the first positioning member, the third positioning member, the third positioning member, and the fourth positioning member;

[0134] Figure 9 yes Figure 8 A three-dimensional schematic diagram of the first and second moving parts;

[0135] Figure 10 This is a three-dimensional schematic diagram of a lifting table in its unfolded state, which employs frame-type support legs, a motor, and a gear and rack transmission mechanism, according to an embodiment of this utility model.

[0136] Figure 11 yes Figure 10 A magnified view of a portion of point A in the middle;

[0137] Figure 12 This is a three-dimensional schematic diagram of the lifting table in its unfolded state, which adopts frame-type support legs, gas springs and gear rack transmission mechanism according to an embodiment of the present utility model.

[0138] Figure 13 This is a three-dimensional schematic diagram of a lifting table in its unfolded state, which employs an inverted T-shaped support leg, a motor, and a pulley transmission mechanism, according to an embodiment of this utility model.

[0139] Figure 14 This is a simplified schematic diagram of the inverted T-shaped support leg provided in this embodiment of the utility model;

[0140] Figure 15 yes Figure 14 A simplified schematic diagram of a modified version of the central support leg;

[0141] Figure 16 yes Figure 14 A simplified schematic diagram of another variation of the middle support leg;

[0142] Figure 17 This is a three-dimensional schematic diagram of the lifting table with inverted T-shaped support legs, gas springs and pulley transmission mechanism provided in this embodiment of the utility model in the unfolded state;

[0143] Figure 18 This is a three-dimensional schematic diagram of the lifting table in the unfolded state, which adopts an inverted T-shaped support leg, a motor, a pulley transmission mechanism and a sprocket and chain transmission mechanism, according to an embodiment of this utility model.

[0144] Figure 19 yes Figure 18 A schematic diagram showing the connection between the pulley transmission mechanism, the sprocket and chain transmission mechanism, and the first and second moving parts;

[0145] Figure 20 This is a three-dimensional schematic diagram of the lifting table in the unfolded state, which adopts an inverted T-shaped support leg, a motor, and a twin screw transmission mechanism, according to an embodiment of this utility model.

[0146] Figure 21 This is a three-dimensional schematic diagram of a lifting table in its unfolded state, which employs frame-type support legs, a motor, and a single screw transmission mechanism, according to an embodiment of this utility model.

[0147] Figure 22 yes Figure 21 A three-dimensional schematic diagram of a lifting table with a motor and a single screw drive mechanism in its unfolded state;

[0148] Figure 23 This is a schematic diagram of the voltage change of the motor during one working cycle provided by an embodiment of the present invention;

[0149] Figure 24 This is a three-dimensional schematic diagram of a lifting table with a gas spring and a damping component provided in an embodiment of the present utility model;

[0150] Figure 25 This is a perspective view of a height-adjustable table with a keyboard tray provided in an embodiment of this utility model;

[0151] Figure 26 This is a three-dimensional schematic diagram of a height-adjustable table with a keyboard tray and an arc-shaped edge, provided in an embodiment of the present utility model.

[0152] Figure 27 This is a three-dimensional schematic diagram of a height-adjustable table with a height-increasing platform provided in an embodiment of this utility model;

[0153] Figure 28 This is a perspective view of a height-adjustable table with a keyboard tray and a height-adjustable platform provided in an embodiment of this utility model.

[0154] Reference numerals: 10, Adjustable desk; 100, Desk panel; 110, Support groove; 120, First front edge; 130, First rear edge; 140, Cable management device; 150, Clearance groove; 200, Support leg assembly; 210, First support leg; 211, First main support component; 2111, First support rod; 2112, First connecting component; 2113, Second connecting component; 2114, First anti-slip pad; 2115, Fourth connecting component; 2116, First part; 2117, Second part; 2101, First rod; 2102, Second rod; 2103, Third rod; 2104, Fourth rod; 2105, Fifth rod; 2106, Sixth rod; 212, First auxiliary support component; 21 21. Third support rod; 2122. Sixth connecting component; 220. Second support leg; 221. Second main support component; 2211. Second support rod; 2212. Third connecting component; 2213. Second anti-slip pad; 2214. Fifth connecting component; 2215. Third part; 2216. Fourth part; 222. Second auxiliary support component; 2221. Fourth support rod; 2222. Seventh connecting component; 230. First damping component; 240. Second damping component; 300. Drive assembly; 310. Power source; 311. Motor; 312. Gas spring; 320. First transmission mechanism; 321. First guide wheel; 322. First flexible traction component; 3221. First positioning component; 3222. Second positioning component. Components; 323, Second guide wheel; 324, Second flexible traction component; 3241, Third positioning component; 3242, Fourth positioning component; 325, First rack; 326, First gear; 327, Second rack; 3201, Pulley transmission mechanism; 3202, Sprocket and chain transmission mechanism; 3203, Gear and rack transmission mechanism; 330, Screw transmission mechanism; 340, Second transmission mechanism; 341, First screw; 342, Second screw; 343, First nut; 344, Second nut; 345, Third screw; 3451, First helical part; 3452, Second helical part; 346, Third nut; 347, Fourth nut; 348, Transmission assembly; 3481, Second gear; 3482, Third gear; 3 483. Fourth gear; 400. Control device; 500. First moving part; 510. First positioning groove; 511. First mounting port; 520. First through groove; 530. Second through groove; 600. Second moving part; 610. Second positioning groove; 611. Second mounting port; 620. Third through groove; 630. Fourth through groove; 700. Tension adjustment mechanism; 710. First tension adjustment component; 720. Second tension adjustment component; 800. First guide rail; 810. First guide slide; 820. Second guide slide; 900. Second guide rail; 101. Power cord; 102. Keyboard tray; 1021. Second front edge; 1022. Arc edge; 103. Raising platform; X, First horizontal direction; Y, Second horizontal direction;t1, the first time period; t2, the second time period; t3, the third time period. Detailed Implementation

[0155] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0156] The height-adjustable desk provided in this embodiment is particularly suitable for desktop desk applications (i.e., scenarios where the height-adjustable desk is placed on an office desk or other table). It can be used to support devices with displays such as monitors, laptops, tablets, or mobile phones. This height-adjustable desk can also be used as a learning platform, work platform, or entertainment platform, providing users with various usage scenarios for learning, work, and entertainment. In specific applications, the height of the desk can be adjusted to meet the needs of users working while seated or standing, as well as the usage needs of users of different heights. Furthermore, the height-adjustable desk provided in this embodiment is not limited to scenarios where it is placed on a table; it can also be used in other scenarios, such as placing it on the ground, sofa, chair, bed, or other supporting surfaces.

[0157] Reference Figure 1 As shown, the first aspect of this utility model provides a height-adjustable desk 10, including a tabletop 100 and a support leg assembly 200. The support leg assembly 200 is connected to the bottom of the tabletop 100 to support the tabletop 100. The support leg assembly 200 can raise or lower the tabletop 100 to achieve the height-adjustable function of the desk 10. The tabletop 100 can be used to support a monitor, laptop, tablet, mobile phone, or other items. The top of the support leg assembly 200 is connected to the tabletop 100, and the bottom of the support leg assembly 200 can be placed on a desk, other table, the ground, a sofa, a chair, or a bed, etc. (For ease of explanation, the following description uses the desk 10 placed on a desk as an example). The support leg assembly 200 is a height-adjustable component, and its lifting movement can be achieved by electric drive, pneumatic drive, or manual drive. That is, the support leg assembly 200 can drive the tabletop 100 to lift under the action of external forces such as electric drive, pneumatic drive, or manual drive to adjust the height of the tabletop 100. When the support leg assembly 200 stops driving the tabletop 100 to lift, it supports and maintains the height of the tabletop 100, thereby meeting the usage needs of different users for the height-adjustable table 10 in different scenarios.

[0158] Reference Figures 1 to 4 As shown, in one embodiment, the support leg assembly 200 is a foldable and unfoldable assembly, meaning that a portion of the support leg assembly 200 can be flipped relative to another portion to a folded state and an unfolded state. (Refer to...) Figure 3 and Figure 4 As shown, in the folded state, a portion of the support leg assembly 200 flips over to fit flush with the other portion; see reference. Figure 1 and Figure 2 As shown, in the unfolded state, a portion of the support leg assembly 200 flips to detach from the other portion and opens up. In this embodiment, the support leg assembly 200 adjusts the height of the tabletop 100 by folding and unfolding. Thus, when the height-adjustable table 10 needs to be folded away, the support leg assembly 200 can be folded under the tabletop 100, making the overall volume of the height-adjustable table 10 more compact and reducing the storage and transportation space required for the table 10.

[0159] Of course, in specific applications, the support leg assembly 200 can also adjust the height of the tabletop 100 in other ways. For example, as an alternative implementation, the support leg assembly 200 is a telescopic assembly, that is, a part of the support leg assembly 200 can move relative to another part to a nested state (a part is housed within another part) and an extended state (a part extends out of another part). In this alternative implementation, the support leg assembly 200 adjusts the height of the tabletop 100 by telescopic means.

[0160] Alternatively, as another alternative implementation, the support leg assembly 200 is a partially retractable and foldable / unfoldable component, meaning that a portion of the support leg assembly 200 can move relative to another portion to a nested state and an extended state, and at least two portions of the support leg assembly 200 can be flipped relative to each other to a folded state and an unfolded state. In this alternative implementation, the support leg assembly 200 adjusts the height of the tabletop 100 through a combination of retraction and folding.

[0161] Reference Figures 1 to 3As shown, in one embodiment, the support leg assembly 200 includes a first support leg 210 and a second support leg 220. The bottom ends of the first support leg 210 and the second support leg 220 are spaced apart along a first horizontal direction X below the tabletop 100. The top ends of the first support leg 210 and the second support leg 220 are respectively movably connected to the bottom of the tabletop 100. In this embodiment, the first horizontal direction X specifically refers to the left-right direction. The first support leg 210 and the second support leg 220 are two foldable support legs, that is, the support leg assembly 200 includes a foldable first support leg 210 and a foldable second support leg 220. Each foldable support leg is formed by two components movably connected. Specifically, the top ends of the two components constituting the support leg are respectively movably connected to the bottom of the tabletop 100. Since there is no guide rail structure at the bottom of the support leg assembly 200 to guide the sliding of the support legs, on the one hand, the bottom ends of the first support leg 210 and the second support leg 220 can form relatively fixed support points on two opposite sides under the tabletop 100. When the support leg assembly 200 supports the tabletop 100, the support points formed by the bottom ends of the first support leg 210 and the second support leg 220 will not shift in position when the tabletop 100 is under force, thereby improving the stability of the tabletop 100 after it is supported and raised by the support leg assembly 200. On the other hand, it can effectively simplify the structure of the height-adjustable table 10 and reduce the number of exposed parts under the tabletop 100 after the support leg assembly 200 supports the tabletop 100, thereby improving the aesthetics of the height-adjustable table 10. In addition, using two support legs to support the tabletop 100 from both sides under the tabletop 100 is simpler in structure than using X-shaped support legs, and has a smaller folding effect and more reliable stability.

[0162] Reference Figures 1 to 4As shown, in one embodiment, the first support leg 210 includes a first main support member 211 and a first auxiliary support member 212, and the second support leg 220 includes a second main support member 221 and a second auxiliary support member 222. The bottom ends of the first main support member 211 and the second main support member 221 are spaced apart along a first horizontal direction X below the tabletop 100. The top ends of the first main support member 211, the second main support member 221, the first auxiliary support member 212, and the second auxiliary support member 222 are movably connected to the bottom of the tabletop 100. The bottom end of the first auxiliary support member 212 is rotatably connected to the first main support member 211, and the bottom end of the second auxiliary support member 222 is rotatably connected to the second main support member 221. At least one of the first main support member 211, the second main support member 221, the first auxiliary support member 212, and the second auxiliary support member 222 can be driven by an external force to move the first main support member 211 and the second main support member 221 in opposite directions, thereby driving the support leg assembly 200 to raise or lower the tabletop 100. The bottom ends of the first main support member 211 and the second main support member 221 are used to support the desk. In this embodiment, the top ends of the first main support member 211, the second main support member 221, the first auxiliary support member 212, and the second auxiliary support member 222 are respectively movably connected to the bottom of the tabletop 100. Specifically, after the top ends of the first main support member 211, the second main support member 221, the first auxiliary support member 212, and the second auxiliary support member 222 are respectively connected to the bottom of the tabletop 100, they can still move relative to the tabletop 100 under the action of an external force (at least one of rotation and movement). The aforementioned first main support member 211 and second main support member 221 move in opposite directions, specifically meaning that the first main support member 211 moves in one direction and the second main support member 221 moves in the opposite direction. The bottom end of the first auxiliary support member 212 is rotatably connected to the first main support member 211, specifically meaning that the bottom end of the first auxiliary support member 212 is connected to the first main support member 211, and the first auxiliary support member 212 and the first main support member 211 can rotate relative to each other around their connection point, thereby enabling the first auxiliary support member 212 and the first main support member 211 to be flipped and folded or flipped and unfolded. The principle of the rotatable connection between the bottom end of the second auxiliary support member 222 and the second main support member 221 is the same as that of the rotatable connection between the bottom end of the first auxiliary support member 212 and the first main support member 211, and will not be described in detail here.In this embodiment, the first main support component 211 and the second main support component 221 can move in opposite directions in conjunction with external force, which helps to ensure that the table 100 rises or falls at basically the same speed when the support leg assembly 200 drives the table 100 to rise or fall, thereby helping to ensure the stability of the table 100's rise and fall.

[0163] In one embodiment, the top ends of the first main support member 211, the second main support member 221, the first auxiliary support member 212, and the second auxiliary support member 222 are movably connected to the bottom of the tabletop 100. This includes: the top ends of the first main support member 211, the second main support member 221, the first auxiliary support member 212, and the second auxiliary support member 222 are respectively connected to the bottom of the tabletop 100. The top end of the first main support member 211 can rotate relative to the tabletop 100 and move horizontally relative to the tabletop 100 in the first horizontal direction X; the top end of the second main support member 221 can rotate relative to the tabletop 100 and move horizontally relative to the tabletop 100 in the first horizontal direction X; the top end of the first auxiliary support member 212 can rotate relative to the tabletop 100; and the top end of the second auxiliary support member 222 can rotate relative to the tabletop 100. That is, during the lifting process of the lifting table 10, the top of the first main support member 211 and the top of the second main support member 221 rotate relative to the table 100 and move horizontally in the first horizontal direction X; the top of the first auxiliary support member 212 and the top of the second auxiliary support member 222 rotate relative to the table 100.

[0164] In one implementation, during the lifting and lowering process of the height-adjustable table 10, the horizontal movement of the top ends of the first main support member 211 and the second main support member 221 is a relatively opposite movement, that is, the top ends of the first main support member 211 and the second main support member 221 move in opposite directions. For example, the top end of the first main support member 211 moves horizontally to the left, and the top end of the second main support member 221 moves horizontally to the right; or, the top end of the first main support member 211 moves horizontally to the right, and the top end of the second main support member 221 moves horizontally to the left. This helps to ensure the centered distribution of the supporting force of the first main support member 211 and the second main support member 221 on the table 100 in the left and right directions during the lifting and lowering process of the table 100.

[0165] In one implementation, in the first horizontal direction X, the top of the first main support member 211 and the top of the second main support member 221 are located between the top of the first auxiliary support member 212 and the top of the second auxiliary support member 222. The top of the first auxiliary support member 212 and the top of the second auxiliary support member 222 are located on the left and right sides of the top of the first main support member 211 and the top of the second main support member 221, respectively. This helps to avoid interference between the top of the first auxiliary support member 212 and the top of the second auxiliary support member 222 and the movement of the top of the first main support member 211 and the top of the second main support member 221.

[0166] In one embodiment, the bottom end of the first auxiliary support member 212 is rotatably connected to the portion of the first main support member 211 located between its top and bottom ends, and the bottom end of the second auxiliary support member 222 is rotatably connected to the portion of the second main support member 221 located between its top and bottom ends. The bottom end of the first auxiliary support member 212 is rotatably connected to the portion of the first main support member 211 located between its top and bottom ends; that is, the bottom end of the first auxiliary support member 212 is rotatably connected to the first main support member 211, and the connection point between the bottom end of the first auxiliary support member 212 and the first main support member 211 is located between the top and bottom ends of the first main support member 211. The bottom end of the second auxiliary support member 222 is rotatably connected to the portion of the second main support member 221 located between its top and bottom ends. Specifically, the bottom end of the second auxiliary support member 222 is rotatably connected to the second main support member 221, and the connection point between the bottom end of the second auxiliary support member 222 and the second main support member 221 is located between the top end and the bottom end of the second main support member 221. More specifically, the first main support member 211 and the first auxiliary support member 212 are arranged in a Y-shape, and the second main support member 221 and the second auxiliary support member 222 are also arranged in a Y-shape. That is, the projections of the first main support member 211 and the first auxiliary support member 212 onto a vertical plane parallel to the first horizontal direction X are both Y-shaped. The projections of the first main support member 211 and the second main support member 221 onto a vertical plane parallel to the first horizontal direction X are either V-shaped or X-shaped. Of the two components constituting the first support leg 210 (i.e., the first main support component 211 and the first auxiliary support component 212), the top ends of the two components are movably connected to the bottom of the tabletop 100, and only the bottom end of one component is supported on the desk. In this embodiment, two Y-shaped support legs are used to support both sides of the tabletop 100. On the one hand, this allows the support leg assembly 200 to form more support points at the bottom of the tabletop 100, and the support leg assembly 200 can form a stable triangular support structure on both the left and right sides of the tabletop 100, thereby improving the stability and reliability of the support leg assembly 200 in supporting the tabletop 100, as well as improving the load-bearing capacity of the tabletop 100. On the other hand, the two Y-shaped support legs have a small folding effect, that is, the height-adjustable table 10 can be folded to a very small volume.

[0167] In one embodiment, the height-adjustable table 10 provided by this utility model further includes a base. The bottom ends of the first main support member 211 and the second main support member 221 are spaced apart on the base along a first horizontal direction X, and the bottom ends of the first main support member 211 and the second main support member 221 are rotatably connected to the base. By providing a base, the contact area between the height-adjustable table 10 and the supporting surface can be increased, further ensuring the stability of the support for the height-adjustable table 10. Of course, in specific applications, it is also possible not to provide a base.

[0168] As one implementation method, the base has a rectangular frame structure, that is, the base is a rectangular frame with four side edges connected end to end in sequence. This design can effectively reduce the weight and cost of the base.

[0169] In the above scheme, the connection between the first auxiliary support member 212 and the first main support member 211 is located in the middle of the first main support member 211, and the connection between the second auxiliary support member 222 and the second main support member 221 is located in the middle of the second main support member 221. The first support leg 210 and the second support leg 220 are two Y-shaped support legs. Of course, in specific applications, the arrangement of the first support leg 210 and the second support leg 220 is not limited to this. For example, as an alternative implementation, the first support leg 210 and the second support leg 220 are two V-shaped support legs, that is, the bottom end of the first auxiliary support member 212 is rotatably connected to the bottom end of the first main support member 211, and the bottom end of the second auxiliary support member 222 is rotatably connected to the bottom end of the second main support member 221. Using these alternative implementation schemes, the support leg assembly 200 can also form triangular support structures on the left and right sides of the tabletop 100 respectively.

[0170] Reference Figure 1 and Figure 2As shown, in one embodiment, the first main support member 211 includes two first support rods 2111 spaced apart in the second horizontal direction Y, with the top ends of the two first support rods 2111 respectively movably connected to the bottom of the tabletop 100. The second main support member 221 includes two second support rods 2211 spaced apart in the second horizontal direction Y, with the top ends of the two second support rods 2211 respectively movably connected to the bottom of the tabletop 100. In this embodiment, the second horizontal direction Y is the front-to-back direction. The first main support member 211 and the second main support member 221 are both frame-shaped, that is, the first main support member 211 and the second main support member 221 each have two support rods spaced apart in the front-to-back direction. This can increase the distribution range of the supporting force of the first main support member 211 and the second main support member 221 on the tabletop 100. In this way, on the one hand, it is beneficial to increase the stability of the support leg assembly 200 supporting the tabletop 100, and on the other hand, it is beneficial to reduce the stress concentration phenomenon. This also makes it easier to use smaller first support rods 2111 and second support rods 2211 to meet the load requirements of the support leg assembly 200. Of course, in specific applications, the arrangement of the first main support member 211 and the second main support member 221 is not limited to this. For example, as an alternative implementation, the first main support member 211 and the second main support member 221 can also be configured as a single-rod structure. Specifically, the first main support member 211 includes a single fifth support rod, and the second main support member 221 includes a single sixth support rod. That is, the first main support member 211 includes one fifth support rod, and the second main support member 221 includes one sixth support rod. The top end of the fifth support rod is movably connected to the bottom of the tabletop 100; the top end of the sixth support rod is movably connected to the bottom of the tabletop 100. Alternatively, as another alternative implementation, one of the first main support member 211 and the second main support member 221 can be a frame structure, and the other can be a single-rod structure.

[0171] Reference Figure 1 and Figure 2As shown, in one embodiment, in the second horizontal direction Y, two first support rods 2111 are located between two second support rods 2211. In this embodiment, the two second support rods 2211 constituting the second main support member 221 are respectively located on the front and rear sides of the two first support rods 2111 constituting the first main support member 211. That is, the width of the first main support member 211 in the front-rear direction is smaller than the width of the second main support member 221 in the front-rear direction. The two first support rods 2111 and the two second support rods 2211 are staggered in the front-rear direction, so that the two first support rods 2111 will not interfere with the two second support rods 2211 when moving in the left-right direction. In this way, on the one hand, the stroke of the two first support rods 2111 in the left-right direction can be greater than half the length of the table 100 in the left-right direction, which is beneficial to the lifting stroke of the table 100; on the other hand, the first main support member 211 and the second main support member 221 can intersect each other when moving closer to each other, making the structure of the lifting table 10 more compact when it is in the folded state. Of course, in specific applications, as an alternative implementation, in the second horizontal direction Y, the two second supports 2211 can also be located between the two first supports 2111.

[0172] Reference Figure 1 and Figure 2 As shown, in one embodiment, the first main support member 211 further includes a first connecting member 2112, which is connected between the upper parts of the two first support rods 2111. The drive assembly 300 is connected to the first connecting member 2112 (described in detail below). The upper part of the first support rod 2111 is the upper half of the first support rod 2111. In this embodiment, by connecting the upper parts of the two first support rods 2111 through the first connecting member 2112, the two first support rods 2111 can be connected as a whole, thereby improving the structural stability of the first main support member 211 and allowing one drive assembly 300 to simultaneously drive the upper parts of the two first support rods 2111 through the first connecting member 2112.

[0173] Reference Figure 1 and Figure 2 As shown, in one embodiment, the first main support member 211 further includes a second connecting member 2113, which connects the lower parts of the two first support rods 2111. The lower part of the first support rod 2111 is the lower half of the first support rod 2111. In this embodiment, connecting the lower halves of the two first support rods 2111 through the second connecting member 2113 can further improve the structural stability of the first main support member 211.

[0174] In one implementation, the first connecting component 2112 is connected between the top ends of the two first support rods 2111. The second connecting component 2113 is connected between the bottom ends of the two first support rods 2111. The top end of the first support rod 2111 is the uppermost part of the first support rod 2111. The bottom end of the first support rod 2111 is the lowermost part of the first support rod 2111. In this embodiment, connecting the first connecting component 2112 between the top ends of the two first support rods 2111 reduces the number of exposed parts after the support leg assembly 200 supports the tabletop 100, thereby improving the aesthetics of the height-adjustable desk 10. Connecting the second connecting component 2113 between the bottom ends of the two first support rods 2111 increases the contact area between the first main support member 211 and the desk, thereby improving the stability and reliability of the first main support member 211 supporting the desk.

[0175] In one embodiment, the first connecting component 2112 is a rod-shaped component, that is, the first connecting component 2112 is a first connecting rod, which has a simple structure. The first connecting rod can be integrally formed with the two first support rods 2111, or it can be manufactured separately from the two first support rods 2111 and then assembled together.

[0176] In one embodiment, the second connecting component 2113 is a rod-shaped component, that is, the second connecting component 2113 is a second connecting rod, which has a simple structure. The second connecting rod can be integrally formed with the two first support rods 2111, or it can be manufactured separately from the two first support rods 2111 and then assembled together.

[0177] Reference Figure 1 and Figure 2 As shown, in one embodiment, the first main support member 211 further includes a first anti-slip pad 2114, which is sleeved on at least a portion of the second connecting member 2113. The first anti-slip pad 2114 increases the friction between the first main support member 211 and the desk, thereby preventing the bottom end of the first main support member 211 from shifting position when the desk 100 is under force after the support leg assembly 200 supports it, thus improving the stability of the desk 100 after it is supported and raised by the support leg assembly 200.

[0178] In one embodiment, a first anti-slip pad 2114 is respectively fitted onto both ends of the second connecting component 2113.

[0179] Reference Figure 1 and Figure 2As shown, in one embodiment, the second main support member 221 further includes a third connecting member 2212, which is connected between the lower parts of the two second support rods 2211. The lower part of the second support rod 2211 is the lower half of the second support rod 2211. In this embodiment, by connecting the lower parts of the two second support rods 2211 through the third connecting member 2212, the two second support rods 2211 can be connected into one unit, thereby improving the structural stability of the second main support member 221.

[0180] In one implementation, the third connecting component 2212 is connected between the bottom ends of the two second support rods 2211, which helps to increase the contact area between the second main support component 221 and the desk. The bottom end of the second support rod 2211 is the lowest part of the second support rod 2211.

[0181] In one embodiment, the third connecting component 2212 is a rod-shaped component, that is, the third connecting component 2212 is a third connecting rod, which has a simple structure. The third connecting rod can be integrally formed with the two second support rods 2211, or it can be manufactured separately from the two second support rods 2211 and then assembled together.

[0182] Reference Figure 1 and Figure 2 As shown, in one embodiment, the second main support member 221 further includes a second anti-slip pad 2213, which is sleeved on at least a portion of the third connecting member 2212. The provision of the second anti-slip pad 2213 helps to increase the friction between the second main support member 221 and the desk, thereby preventing the bottom end of the second main support member 221 from shifting position when the desk 100 is under force after the support leg assembly 200 supports it, thus improving the stability of the desk 100 after it is supported and raised by the support leg assembly 200.

[0183] In one embodiment, a second anti-slip pad 2213 is respectively fitted onto both ends of the third connecting component 2212.

[0184] Reference Figure 1 and Figure 2 As shown, in one embodiment, the first main support member 211 further includes a fourth connecting member 2115, which is connected between the middle portions of the two first support rods 2111. The bottom end of the first auxiliary support member 212 is rotatably connected to the fourth connecting member 2115. The fourth connecting member 2115 is provided to further improve the structural stability of the first main support member 211 and facilitates the rotatable connection between the first auxiliary support member 212 and the first main support member 211.

[0185] In one embodiment, the bottom end of the first auxiliary support member 212 is rotatably connected to the fourth connecting member 2115 via a hinge, a pivot, or a damping hinge.

[0186] In one embodiment, the fourth connecting member 2115 is a rod-shaped member, that is, the fourth connecting member 2115 is a fourth connecting rod.

[0187] Reference Figure 1 and Figure 2 As shown, in one embodiment, the second main support member 221 further includes a fifth connecting member 2214, which is connected between the middle portions of the two second support rods 2211. The bottom end of the second auxiliary support member 222 is rotatably connected to the fifth connecting member 2214. The provision of the fifth connecting member 2214 can, on the one hand, further improve the structural stability of the second main support member 221, and on the other hand, facilitate the rotatable connection between the second auxiliary support member 222 and the second main support member 221.

[0188] In one embodiment, the bottom end of the second auxiliary support member 222 is rotatably connected to the fifth connecting member 2214 via a hinge, pivot, or damping hinge.

[0189] In one embodiment, the fifth connecting member 2214 is a rod-shaped member, that is, the fifth connecting member 2214 is a fifth connecting rod.

[0190] Reference Figure 1 and Figure 2 As shown, in one embodiment, the first auxiliary support member 212 includes two third support rods 2121 spaced apart in the second horizontal direction Y, and a sixth connecting member 2122 connecting the upper parts of the two third support rods 2121. The bottom ends of the two third support rods 2121 are rotatably connected to the fourth connecting member 2115. In this embodiment, the first auxiliary support member 212 is configured with two third support rods 2121 spaced apart in the front-rear direction, which helps to increase the range of the supporting force distribution of the first auxiliary support member 212 on the tabletop 100. This helps to further increase the stability of the support leg assembly 200 supporting the tabletop 100. In addition, connecting the two third support rods 2121 into one unit through the sixth connecting member 2122 helps to improve the stability and reliability of the first auxiliary support member 212.

[0191] In one embodiment, the sixth connecting component 2122 is connected between the top ends of the two third support rods 2121. The sixth connecting component 2122 is rotatably connected to the bottom of the tabletop 100. In this embodiment, connecting the sixth connecting component 2122 between the top ends of the two third support rods 2121 allows the first auxiliary support member 212 to connect the two third support rods 2121 into one unit via the sixth connecting component 2122, thereby improving the structural stability of the first auxiliary support member 212. Furthermore, it reduces the number of exposed parts after the support leg assembly 200 supports the tabletop 100, thus improving the aesthetics of the height-adjustable table 10. In addition, the first auxiliary support member 212 is rotatably connected to the bottom of the tabletop 100 via the sixth connecting component 2122, so that the third support rods 2121 only need to be connected to the sixth connecting component 2122, without the need for a structure for connecting to the tabletop 100, simplifying the structure of the two third support rods 2121.

[0192] In one embodiment, the sixth connecting member 2122 is a rod-shaped member, that is, the sixth connecting member 2122 is a sixth connecting rod.

[0193] Reference Figure 1 and Figure 2 As shown, in one embodiment, the second auxiliary support member 222 includes two fourth support rods 2221 spaced apart in the second horizontal direction Y, and a seventh connecting member 2222 connecting the upper parts of the two fourth support rods 2221. The bottom ends of the two fourth support rods 2221 are rotatably connected to the fifth connecting member 2214. The principle of setting the seventh connecting member 2222 in the second auxiliary support member 222 is similar to the principle of setting the sixth connecting member 2122 in the first auxiliary support member 212, and will not be described in detail here.

[0194] In one implementation, the seventh connecting component 2222 is connected between the top ends of the two third support rods 2121. The seventh connecting component 2222 is rotatably connected to the bottom of the tabletop 100. The principle of the connection position setting of the seventh connecting component 2222 can be referred to that of the sixth connecting component 2122, and will not be described in detail here.

[0195] In one embodiment, the seventh connecting member 2222 is a rod-shaped member, that is, the seventh connecting member 2222 is a seventh connecting rod.

[0196] In one implementation, the distance from the connection point between the first main support member 211 and the first auxiliary support member 212 along the length of the first main support member 211 to its top is equal to the length of the first auxiliary support member 212. The first main support member 211 is divided into a first segment and a second segment along its length. The first segment extends from the connection point between the first main support member 211 and the first auxiliary support member 212 to the top of the first main support member 211, and the second segment extends from the connection point between the first main support member 211 and the first auxiliary support member 212 to the bottom of the first main support member 211. In this embodiment, the first segment and the first auxiliary support member 212 are of equal length, thus forming an isosceles triangle structure with the tabletop 100. This helps to ensure that the tops of the first main support member 211 and the first auxiliary support member 212 are at the same height, thereby ensuring the levelness of the tabletop 100. Of course, in specific applications, as an alternative implementation, the distance from the connection point of the first main support member 211 and the first auxiliary support member 212 along the length direction of the first main support member 211 to the top of the first main support member 211 can also be greater than or less than the length of the first auxiliary support member 212. In this case, the tabletop 100 can be kept horizontal by adjusting the tilt angle of the first main support member 211 and the first auxiliary support member 212.

[0197] In one implementation, the distance from the connection point between the second main support member 221 and the second auxiliary support member 222 along the length of the second main support member 221 to its top is equal to the length of the second auxiliary support member 222. The second main support member 221 is divided into a third segment and a fourth segment along its length. The third segment extends from the connection point between the second main support member 221 and the second auxiliary support member 222 to the top of the second main support member 221, and the fourth segment extends from the connection point between the second main support member 221 and the second auxiliary support member 222 to the bottom of the second main support member 221. The principle by which the third segment, the second auxiliary support member 222, and the tabletop 100 form an isosceles triangle structure is similar to the principle by which the first segment, the first auxiliary support member 212, and the tabletop 100 form an isosceles triangle structure, and will not be described in detail here. Of course, in specific applications, as an alternative implementation, the distance from the connection point of the second main support member 221 and the second auxiliary support member 222 along the length direction of the second main support member 221 to the top of the second main support member 221 can also be greater than or less than the length of the second auxiliary support member 222.

[0198] In one implementation, the distance from the connection point between the first main support member 211 and the first auxiliary support member 212 along the length of the first main support member 211 to its bottom is equal to the length of the first auxiliary support member 212. That is, the second segment is equal in length to the first auxiliary support member 212. This ensures that the bottom of the first main support member 211 does not shift position during the lifting and lowering of the tabletop 100 by the support leg assembly 200, thereby improving the stability of the support leg assembly 200 supporting the tabletop 100. Of course, in specific applications, as an alternative implementation, the distance from the connection point between the first main support member 211 and the first auxiliary support member 212 along the length of the first main support member 211 to its bottom can also be greater than or less than the length of the first auxiliary support member 212.

[0199] In one implementation, the distance from the connection point between the first main support member 211 and the first auxiliary support member 212 along the length direction of the first main support member 211 to its top, the distance from the connection point between the first main support member 211 and the first auxiliary support member 212 along the length direction of the first main support member 211 to its bottom, and the length of the first auxiliary support member 212 are all equal. That is, the lengths of the first segment, the second segment, and the first auxiliary support member 212 are all equal, and the connection point between the first main support member 211 and the first auxiliary support member 212 is the midpoint of the first main support member 211. This facilitates better folding performance and improved stability of the support for the tabletop 100 between the first main support member 211 and the first auxiliary support member.

[0200] In one implementation, the distance from the connection point between the second main support member 221 and the second auxiliary support member 222 along the length of the second main support member 221 to its bottom end is equal to the length of the second auxiliary support member 222. Of course, in specific applications, as an alternative implementation, the distance from the connection point between the second main support member 221 and the second auxiliary support member 222 along the length of the second main support member 221 to its bottom end can also be greater than or less than the length of the second auxiliary support member 222.

[0201] In one implementation, the distance from the connection point between the second main support member 221 and the second auxiliary support member along the length direction of the second main support member 221 to its top, the distance from the connection point between the second main support member 221 and the second auxiliary support member 222 along the length direction of the second main support member 221 to its bottom, and the length of the second auxiliary support member 222 are all equal. That is, the third segment, the fourth segment, and the length of the second auxiliary support member 222 are all equal, and the connection point between the second main support member 221 and the second auxiliary support member 222 is the midpoint of the second main support member 221. This facilitates better folding performance and improved stability of the support for the tabletop 100 between the second main support member 221 and the second auxiliary support member.

[0202] In one implementation, the top end of the first auxiliary support member 212 is located directly above the bottom end of the first main support member 211. This helps to better prevent the bottom end of the first main support member 211 from shifting position during the lifting and lowering of the tabletop 100 by the support leg assembly 200. Of course, in specific applications, as an alternative implementation, the top end of the first auxiliary support member 212 can also be located diagonally above the bottom end of the first main support member 211.

[0203] In one implementation, the top end of the second auxiliary support member 222 is located directly above the bottom end of the second main support member 221. This helps to better prevent the bottom end of the first main support member 211 from shifting position during the lifting and lowering of the tabletop 100 by the support leg assembly 200. Of course, in specific applications, as an alternative implementation, the top end of the second auxiliary support member 222 can also be located diagonally above the bottom end of the second main support member 221.

[0204] In the above scheme, the first main support member 211 and the second main support member 221 adopt a frame structure. However, in specific applications, the arrangement of the first main support member 211 and the second main support member 221 is not limited to this. For example, refer to... Figures 13 to 20As shown, as an alternative implementation, the first main support member 211 includes a first part 2116 and a second part 2117. The upper part of the first part 2116 is movably connected to the bottom of the tabletop 100, and the lower part of the first part 2116 is connected to the second part 2117. The second part 2117 extends along the second horizontal direction Y. The second main support member 221 includes a third part 2215 and a fourth part 2216. The upper part of the third part 2215 is movably connected to the bottom of the tabletop 100, and the lower part of the third part 2215 is connected to the fourth part 2216. The fourth part 2216 extends along the second horizontal direction Y. The first horizontal direction X and the second horizontal direction Y are perpendicular to each other. The second part 2117 extending along the second horizontal direction Y mainly means that the dimension of the second part 2117 extending in the second horizontal direction Y is greater than the dimension of the lower part of the first part 2116 extending in the second horizontal direction Y. The fourth part 2216 extends along the second horizontal direction Y, meaning that the dimension of the fourth part 2216 extending in the second horizontal direction Y is greater than the dimension of the lower part of the third part 2215 extending in the second horizontal direction Y. The arrangement of the second part 2117 and the fourth part 2216 is mainly used to increase the contact area between the support leg assembly 200 and the desk, ensuring the stability of the first support leg 210 and the second support leg 220 in supporting the tabletop 100, thereby helping to prevent the height-adjustable desk 10 from tipping over in the second horizontal direction Y.

[0205] In one implementation, the top end of the first part 2116 is movably connected to the bottom of the tabletop 100, and the bottom end of the first part 2116 is connected to the second part 2117. The top end of the third part 2215 is movably connected to the bottom of the tabletop 100, and the bottom end of the third part 2215 is connected to the fourth part 2216.

[0206] Reference Figure 13 and Figure 14 As shown, in one embodiment, the first part 2116 includes a first rod 2101, and the second part 2117 includes a second rod 2102. The first rod 2101 extends from bottom to top to the bottom of the tabletop 100, and the second rod 2102 extends along the second horizontal direction Y. The first main support member 211 is an inverted T-shaped structure formed by the first rod 2101 and the second rod 2102. In this way, the first support leg 210 is supported on the desk by the second rod 2102, which can increase the contact area between the first support leg 210 and the desk.

[0207] Of course, in specific applications, the configuration methods for Part 2116 and Part 2117 are not limited to the above scheme. For example, refer to... Figure 15As shown, as an alternative embodiment to the first part 2116 and the second part 2117 described above, the first part 2116 includes a first rod 2101, and the second part 2117 includes a second rod 2102, a third rod 2103, and a fourth rod 2104. The first rod 2101 extends obliquely upwards to the bottom of the tabletop 100, the second rod 2102 extends along the second horizontal direction Y, and the third rod 2103 and the fourth rod 2104 extend obliquely downwards from both ends of the second rod 2102, respectively. In this way, by supporting the desk with the bottom ends of the third rod 2103 and the fourth rod 2104, the contact area between the first support leg 210 and the desk can also be increased.

[0208] Or, refer to Figure 16 As shown, as an alternative embodiment of the first part 2116 and the second part 2117 described above, the first part 2116 includes a first rod 2101, and the second part 2117 includes a second rod 2102, a third rod 2103, a fourth rod 2104, a fifth rod 2105, and a sixth rod 2106. The first rod 2101 extends obliquely upwards to the bottom of the tabletop 100. The second rod 2102 extends along a second horizontal direction Y. The third rod 2103 and the fourth rod 2104 extend obliquely downwards from both ends of the second rod 2102, respectively. The fifth rod 2105 extends from the end of the third rod 2103 along the second horizontal direction Y. The sixth rod 2106 extends from the end of the fourth rod 2104 along the second horizontal direction Y. The fifth rod 2105 and the sixth rod 2106 can extend towards each other or in opposite directions.

[0209] Reference Figure 13 As shown, in one embodiment, the third part 2215 includes a seventh rod, and the fourth part 2216 includes an eighth rod. The seventh rod extends obliquely upwards to the bottom of the tabletop 100, and the eighth rod extends along the second horizontal direction Y. The first main support member 211 is an inverted T-shaped structure formed by the seventh and eighth rods. In this way, the second support leg 220 is supported on the desk by the eighth rod, thereby increasing the contact area between the first support leg 210 and the desk. Other configurations of the third part 2215 and the fourth part 2216 can be referred to the first part 2116 and the second part 2117, and will not be described in detail here.

[0210] In the above implementation scheme, the first main support member 211, the second main support member 221, the first auxiliary support member 212, and the second auxiliary support member 222 are all members with fixed lengths. Of course, in specific applications, as an alternative implementation scheme, at least one of the first main support member 211, the second main support member 221, the first auxiliary support member 212, and the second auxiliary support member 222 can also be a telescopic member or a foldable member. For example, both the first main support member 211 and the second main support member 221 can be telescopic, allowing the lengths of the first main support member 211 and the second main support member 221 to be adjusted by telescopic movement, thereby increasing the maximum height of the tabletop 100 from the support surface; or, both the first main support member 211 and the second main support member 221 can be foldable. Since the maximum height of the lifting table 10 is determined by the lengths of the first main support member 211 and the second main support member 221, the lengths of the first main support member 211 and the second main support member 221 can be adjusted by folding or unfolding to effectively increase the maximum height of the tabletop 100 from the support surface.

[0211] Reference Figure 1 and Figure 2 As shown, in one embodiment, the height-adjustable desk 10 also includes a drive assembly 300, which is connected to the support leg assembly 200 for driving the support leg assembly 200 to raise or lower the desk 100. The drive assembly 300 primarily drives the support leg assembly 200 to move, thereby raising or lowering the desk 100, thus enabling height adjustment and retraction of the desk 100 to meet the needs of different users in different scenarios. The drive assembly 300 can be electrically or pneumatically driven. In this embodiment, the drive assembly 300 drives the support leg assembly 200 to move, raising or lowering the desk 100, thereby freeing users from manual operation and improving user comfort when using the height-adjustable desk 10.

[0212] In one implementation, the drive assembly 300 is driveably connected to at least one of the first main support member 211, the second main support member 221, the first auxiliary support member 212, and the second auxiliary support member 222, to drive the first main support member 211 and the second main support member 221 to move in opposite directions, thereby enabling the drive support leg assembly 200 to raise or lower the tabletop 100. In this embodiment, the drive assembly 300 may be driveably connected to only one of the first main support member 211, the second main support member 221, the first auxiliary support member 212, and the second auxiliary support member 222, or it may be driveably connected to two, three, or even four of the first main support member 211, the second main support member 221, the first auxiliary support member 212, and the second auxiliary support member 222. The drive assembly 300 drives the support leg assembly 200 to raise or lower the table 100 by driving the first main support member 211 and the second main support member 221 to move in opposite directions. That is, the table 100 is raised or lowered by driving the first main support member 211 and the second main support member 221 to move in two opposite directions. This helps to ensure that the table 100 remains horizontal during the raising and lowering process.

[0213] In one embodiment, the top ends of the first main support member 211 and the second main support member 221 are movably connected to the bottom of the tabletop 100 in a rotatable manner and are movable relative to the tabletop 100 in the first horizontal direction X. The drive assembly 300 is used to drive the first support leg 210 and the second support leg 220 to move in two opposite directions, so as to drive the support leg assembly 300 to raise or lower the tabletop 100. In this embodiment, the drive assembly 300 moves the support leg assembly 200 by driving the top of the first main support member 211 and the top of the second main support member 221 to move in two opposite directions. For example, the top of the first main support member 211 moves horizontally to the left, and the top of the second main support member 221 moves horizontally to the right; or, the top of the first main support member 211 moves horizontally to the right, and the top of the second main support member 221 moves horizontally to the right. This helps to ensure the alignment of the top of the first main support member 211 and the top of the second main support member 221 in the left-right direction during the movement of the support leg assembly 200, thereby preventing the table 100 from tilting during the lifting and lowering process.

[0214] In one implementation, the drive assembly 300 is driveably connected to at least one of the upper parts of the first main support member 211 and the second main support member 221 to drive the top ends of the first main support member 211 and the second main support member 221 to move in two opposite directions, respectively. In this embodiment, the drive assembly 300 transmits driving force to the support leg assembly 200 by being driveably connected to the upper parts of the first main support member 211 and / or the second main support member 221, thereby driving the support leg assembly 200 to move and facilitating better driving of the top ends of the first main support member 211 and the second main support member 221 to move in opposite directions. Of course, in specific applications, as an alternative implementation, the drive assembly 300 can also transmit driving force to the support leg assembly 200 by being driveably connected to at least one of the upper parts of the first auxiliary support member 212 and the second auxiliary support member 222.

[0215] In one implementation, the drive assembly 300 is driveably connected to at least one of the top ends of the first main support member 211 and the second main support member 221 to drive the top ends of the first main support member 211 and the second main support member 221 to move in two opposite directions. In this embodiment, the drive assembly 300 transmits driving force to the support leg assembly 200 by being driveably connected to the top ends of the first main support member 211 and / or the second main support member 221, thereby driving the support leg assembly 200 to move. This allows the drive assembly 300 to be positioned close to the bottom of the tabletop 100, thereby reducing the number of exposed parts after the support leg assembly 200 supports the tabletop 100, and thus improving the aesthetics of the height-adjustable table 10. Of course, in specific applications, as an alternative implementation, the drive assembly 300 can also be driveably connected to at least one of the top ends of the first auxiliary support member 212 and the second auxiliary support member 222.

[0216] In one embodiment, in the scheme where the first main support member 211 includes two first support rods 2111 and a first connecting member 2112 connecting the two first support rods 2111, the drive assembly 300 is connected to the first connecting member 2112 in a transmission manner. The drive assembly 300 drives the two first support rods 2111 to move synchronously through the first connecting member 2112.

[0217] Reference Figure 2 , Figure 4 and Figure 5 As shown, in one embodiment, the drive assembly 300 includes a power source 310, which provides driving force for the support leg assembly 200 to drive the table 100 to move up and down.

[0218] In one implementation, the number of power sources 310 is one, meaning the height-adjustable table 10 includes a single power source 310. The power source 310 is driveably connected to at least one of the first support leg 210 and the second support leg 220 to drive a portion of the top end of the first support leg 210 and a portion of the top end of the second support leg 220 to move in opposite directions relative to each other in the first horizontal direction X, thereby adjusting the distance between the tabletop 100 and the bottom end of the first support leg 210, and adjusting the distance between the tabletop 100 and the bottom end of the second support leg 220. This embodiment uses a single power source 310 to drive the support leg assembly 200 to raise or lower the tabletop 100 by driving at least one of the first support leg 210 and the second support leg 220. That is, the movement of the first support leg 210 and the second support leg 220 shares the same power source 310. This reduces the number and cost of the power sources 310 in the height-adjustable table 10, and also reduces the complexity of the control system and eliminates left-right lifting deviations caused by asynchronous control of multiple power sources 310.

[0219] In one embodiment, the power source 310 is connected in a transmission connection to at least one of the upper part of the first main support member 211 and the upper part of the second main support member 221.

[0220] In one embodiment, the power source 310 is connected to at least one of the top ends of the first main support member 211 and the second main support member 221 for driving the top ends of the first main support member 211 and the second main support member 221 to move in opposite directions relative to each other in the first horizontal direction X.

[0221] In one implementation, the power source 310 is mounted on the bottom of the tabletop 100 along the first horizontal direction X. This embodiment mounts the power source 310 to the bottom of the tabletop 100, so that the power source 310 is not directly visible after the support leg assembly 200 supports the tabletop 100. This further reduces the number of exposed parts under the tabletop 100 after the support leg assembly 200 supports the tabletop 100, thereby improving the aesthetics of the height-adjustable table 10. Of course, in specific applications, as an alternative implementation, the mounting method of the power source 310 is not limited to this. For example, one end of the power source 310 can be mounted to the tabletop 100, and the other end can be mounted to the support leg assembly 200, so that the power source 310 is mounted in an inclined direction.

[0222] Reference Figure 1 , Figure 2 and Figure 4 As shown, in one embodiment, the height-adjustable table 10 also includes a control device 400, which is mounted on the tabletop 100 and connected to the power source 310 for user operation to control the power source 310 to drive the support leg assembly 200 to move, thereby causing the tabletop 100 to rise or fall.

[0223] In one implementation, the control device 400 is one of a lever, push button, button, knob, or touch control. When the control device 400 is a lever, the user can control the power source 310 to drive the support leg assembly 200 to raise and lower the tabletop 100 by moving the lever to different positions. When the control device 400 is a push button, the user can control the power source 310 to drive the support leg assembly 200 to raise and lower the tabletop 100 by pushing the push button to different positions. When the control device 400 is a button, the user can control the power source 310 to drive the support leg assembly 200 to raise and lower the tabletop 100 by pressing different buttons. When the control device 400 is a knob, the user can control the power source 310 to drive the support leg assembly 200 to raise and lower the tabletop 100 by rotating the knob to different positions. When the control device 400 is a touch control, the user can control the power source 310 to drive the support leg assembly 200 to raise and lower the table 100 by touching different touch areas of the touch control.

[0224] In one implementation, the control device 400 extends from the bottom of the tabletop 100 and protrudes beyond the edge of the tabletop 100. Specifically, the control device 400 is located at the bottom of the tabletop 100, with a portion of the control device 400 directly beneath the tabletop 100, and the other portion (the control area of ​​the control device 400) extending beyond the edge of the tabletop 100. This design facilitates user operation, minimizes the impact of the entire control device 400 being exposed, thus reducing its impact on the overall aesthetics of the height-adjustable table 10, and also avoids the control device 400 occupying the top surface of the tabletop 100. Of course, in specific applications, the arrangement of the control device 400 is not limited to this. For example, as an alternative implementation, the control device 400 may also be located on the side of the tabletop 100, on the top of the tabletop 100, or entirely on the bottom of the tabletop 100.

[0225] Reference Figure 2As shown, in one embodiment, the drive assembly 300 further includes a first transmission mechanism 320; one of the upper parts of the first main support member 211 and the second main support member 221 is driveably connected to the power source 310. The first transmission mechanism 320 is driveably connected between the upper parts of the first main support member 211 and the second main support member 221, so as to drive the other of the first main support member 211 and the second main support member 221 to move in the opposite direction when one of the first main support member 211 and the second main support member 221 moves under the drive of the power source 310. In this embodiment, the power source 310 is only connected to one of the first main support member 211 and the second main support member 221. The first main support member 211 and the second main support member 221 are connected through the first transmission mechanism 320. This not only allows a single power source 310 to drive the first main support member 211 and the second main support member 221, but also ensures that the positions of the first main support member 211 and the second main support member 221 are not simultaneously limited by the position of the power source 310. This helps to balance the structural reliability and large stroke of the first main support member 211 and the second main support member 221.

[0226] In one implementation, the top end of the first main support member 211 and the top end of the second main support member 221 are connected to the power source 310. A first transmission mechanism 320 is connected between the top ends of the first main support member 211 and the second main support member 221, so that when one of the top ends of the first main support member 211 and the second main support member 221 moves under the drive of the power source 310, it drives the other of the top ends of the first main support member 211 and the second main support member 221 to move in the opposite direction. In this embodiment, the power source 310, the first transmission mechanism 320, and the top ends of the first main support member 211 and the second main support member 221 are connected to each other, which facilitates the placement of more components close to the bottom of the tabletop 100. This reduces the number of exposed components after the support leg assembly 200 supports the tabletop 100, and also ensures the stable and reliable installation of the power source 310 and the first transmission mechanism 320.

[0227] Reference Figure 2 , Figure 5 and Figure 6As shown, in one embodiment, the height-adjustable table 10 further includes a first moving member 500 and a second moving member 600. The top end of the first main support member 211 is rotatably connected to the first moving member 500 and is movably connected to the bottom of the tabletop 100 along a first horizontal direction X via the first moving member 500. That is, the first moving member 500 is movably connected to the bottom of the tabletop 100, and the top end of the first main support member 211 is rotatably connected to the first moving member 500. The top end of the second main support member 221 is rotatably connected to the second moving member 600 and is movably connected to the bottom of the tabletop 100 along a first horizontal direction X via the second moving member 600. That is, the second moving member 600 is movably connected to the bottom of the tabletop 100, and the top end of the second main support member 221 is rotatably connected to the second moving member 600. A power source 310 is drive-connected to one of the first moving member 500 and the second moving member 600. The first transmission mechanism 320 is connected between the first moving member 500 and the second moving member 600 to drive the other moving member 500 and the other moving member 600 to move in opposite directions when one of the first moving member 500 and the second moving member 600 moves under the drive of the power source 310. In this embodiment, the top end of the first main support member 211 is indirectly and movably connected to the bottom of the tabletop 100 via the first movable member 500, and the top end of the second main support member 221 is movably connected to the bottom of the tabletop 100 via the second movable member 600. In this way, without setting complex connection structures on the tabletop 100, the first main support member 211 and the second main support member 221 can achieve the effect of the top end of the first main support member 211 being able to rotate and move horizontally relative to the tabletop 100, and the top end of the second main support member 221 being able to rotate and move horizontally relative to the tabletop 100, thereby reducing the manufacturing difficulty of the tabletop 100, the first main support member 211 and the second main support member 221.

[0228] Reference Figure 2 , Figure 6 , Figure 8 , Figure 18 and Figure 19As shown, in one embodiment, the first transmission mechanism 320 includes at least one of a pulley transmission mechanism 3201 and a sprocket and chain transmission mechanism 3202, that is: the first transmission mechanism 320 includes a pulley transmission mechanism 3201; or, the first transmission mechanism 320 includes a sprocket and chain transmission mechanism 3202; or, the first transmission mechanism 320 includes a combination of a pulley transmission mechanism 3201 and a sprocket and chain transmission mechanism 3202. The pulley transmission mechanism 3201 consists of a pulley and a flexible traction member wound around the pulley. The sprocket and chain transmission mechanism 3202 consists of a sprocket and a chain wound around the sprocket. Using pulley transmission mechanism 3201 and / or sprocket and chain transmission mechanism 3202 to achieve reverse linkage between the first moving part 500 and the second moving part 600 has the following advantages: the manufacturing precision, manufacturing difficulty, and manufacturing cost of pulley transmission mechanism 3201 and sprocket and chain transmission mechanism 3202 are relatively low; the installation and adjustment of pulley transmission mechanism 3201 and sprocket and chain transmission mechanism 3202 are relatively convenient, and the maintenance cost is relatively low.

[0229] Reference Figure 2 , Figure 6 , Figure 8 , Figure 18 and Figure 19As shown, in one embodiment, the first transmission mechanism 320 includes a first guide wheel 321, a first flexible traction member 322, a second guide wheel 323, and a second flexible traction member 324. The first guide wheel and the second guide wheel 323 are spaced apart along a first horizontal direction X at the bottom of the tabletop 100 and are rotatably connected to the tabletop 100. The first flexible traction member 322 is wound around the first guide wheel 321, and both ends of the first flexible traction member 322 extend toward the side where the second guide wheel 323 is located and are respectively connected to the first moving member 500 and the second moving member 600. The second flexible traction member 324 is wound around the second guide wheel 323, and both ends of the second flexible traction member 324 extend toward the side where the first guide wheel 321 is located and are respectively connected to the first moving member 500 and the second moving member 600. One end of the first flexible traction member 322 and one end of the second flexible traction member 324 extend from opposite sides (left and right sides) of the first moving member 500 and are connected to the first moving member 500. The other ends of the first flexible traction member 322 and the second flexible traction member 324 are connected to the second moving member 600 from opposite sides (left and right sides), respectively. The first guide wheel 321 and the first flexible traction member 322 form a pulley transmission mechanism 3201 or a sprocket and chain transmission mechanism 3202, and the second guide wheel 323 and the second flexible traction member 324 form another pulley transmission mechanism 3201 or a sprocket and chain transmission mechanism 3202. A flexible traction member refers to a strip-shaped flexible element that can be bent and transmit tension. In this embodiment, the first flexible traction member 322, the first moving member 500, the second flexible traction member 324, and the second moving member 600 are connected end to end in sequence to form a circumferentially closed ring structure, which is roughly waist-shaped. The waist-shaped hole, also known as an oblong hole, is a shape formed by two parallel straight edges and two arc edges connected to the two ends of the two straight edges. The first moving member 500 and the second moving member 600 move back and forth in opposite directions on the two straight edges. Specifically, when the power source 310 drives one of the first moving part 500 and the second moving part 600 to move horizontally to the left, one of the flexible traction components can pull the other of the first moving part 500 and the second moving part 600 to move horizontally to the right; when the power source 310 drives one of the first moving part 500 and the second moving part 600 to move horizontally to the right, the other flexible traction component can pull the other of the first moving part 500 and the second moving part 600 to move horizontally to the left. In this embodiment, two guide wheels and two flexible traction components are used to achieve the reverse linkage connection between the first moving part 500 and the second moving part 600, which has a simple structure, low cost, and is convenient to install and adjust.

[0230] Reference Figure 8 and Figure 9As shown, in one embodiment, the first flexible traction member 322 has a first positioning member 3221 in the shape of a column or a ball at one end and a second positioning member 3222 in the shape of a column or a ball at the other end. One end of the first flexible traction member 322 is connected to the first moving member 500 through the locking cooperation between the first positioning member 3221 and the first moving member 500. The other end of the first flexible traction member 322 is connected to the second moving member 600 through the locking cooperation between the second positioning member 3222 and the second moving member 600. The first positioning element 3221 and the second positioning element 3222 are positioning posts or positioning balls, and the first moving element 500 and the second moving element 600 are provided with structures for the first positioning element 3221 and the second positioning element 3222 to be engaged and positioned. Thus, in practical applications, simply engaging and positioning the first positioning element 3221 and the second positioning element 3222 with the first moving element 500 and the second moving element 600 respectively achieves the connection between the first flexible traction element 322 and the first moving element 500 and the second moving element 600, making installation convenient. Of course, in practical applications, the connection method between the first flexible traction element 322 and the first moving element 500 and the second moving element 600 is not limited to this. For example, as an alternative implementation, the first flexible traction element 322 can also be connected to the first moving element 500 and the second moving element 600 by threaded connection, binding, bonding, or welding.

[0231] Reference Figure 8 and Figure 9 As shown, in one embodiment, the second flexible traction member 324 has a columnar or spherical third positioning member 3241 at one end and a columnar or spherical fourth positioning member 3242 at the other end. One end of the second flexible traction member 324 is connected to the first moving member 500 through the locking engagement of the third positioning member 3241, and the other end of the second flexible traction member 324 is connected to the second moving member 600 through the locking engagement of the fourth positioning member 3242. The connection principle between the second flexible traction member 324 and the first moving member 500 and the second moving member 600 is similar to the connection principle between the first flexible traction member 322, the first moving member 500 and the second moving member 600, and will not be described in detail here.

[0232] Reference Figure 2 , Figure 8 and Figure 9As shown, in one embodiment, the first moving member 500 has a first positioning groove 510, a first through groove 520, and a second through groove 530. The width of the first positioning groove 510 extending along the first horizontal direction X is greater than the sum of the diameters of the first positioning member 3221 and the third positioning member 3241. The first positioning member 3221 and the third positioning member 3241 are respectively installed in the first positioning groove 510 and abut against the two side walls of the first positioning groove 510 that are spaced apart and opposite to each other in the first horizontal direction X. The first through groove 520 and the second through groove 530 extend from opposite sides of the first moving member 500 in the first horizontal direction X to the first positioning groove 510. The portion of the first flexible traction member 322 near the first positioning member 3221 passes through the first through groove 520, and the portion of the second flexible traction member 324 near the third positioning member 3241 passes through the second through groove 530. The first positioning groove 510 has a first mounting opening 511 that penetrates the top of the first moving member 500. The first through groove 520 and the second through groove 530 are respectively disposed through the top of the first moving member 500. The first positioning member 3221 and the third positioning member 3241 can be installed into the first positioning groove 510 from the first mounting port 511 respectively. Parts of the first flexible traction member 322 and the second flexible traction member 324 are respectively inserted into the first through groove 520 and the second through groove 530 from the top of the first moving member 500. After the first positioning member 3221 and the third positioning member 3241 are installed into the first positioning groove 510 through the first mounting port 511, they abut against the left and right inner side walls of the first positioning groove 510 respectively. The left and right inner side walls of the first positioning groove 510 limit the first positioning member 3221 and the third positioning member 3241 respectively, thereby realizing the locking and cooperation between the first positioning member 3221 and the third positioning member 3241 and the first moving member 500. This cooperation method not only ensures the stability of the connection between the first flexible traction member 322, the second flexible traction member 324 and the first moving member 500, but also gives the first positioning member 3221 and the third positioning member 3241 a certain degree of freedom of movement, thereby facilitating the installation and fixation of the first flexible traction member 322 and the second flexible traction member 324 on the first moving member 500.

[0233] In one embodiment, the two side walls of the first positioning groove 510, which are arranged at intervals opposite each other in the first horizontal direction X, are arc-shaped. This allows the outer side wall of the first positioning member 3221 to better fit against the two side walls of the first positioning groove 510, thereby improving the stability of the first positioning member 3221 and the third positioning member 3241 in the first positioning groove 510.

[0234] In one embodiment, the distance between the two side walls of the first positioning groove 510, which are arranged at intervals opposite each other in the first horizontal direction X, is greater than the sum of the diameters of the first positioning member 3221 and the third positioning member 3241. This facilitates the installation of the first positioning member 3221 and the third positioning member 3241 in the first positioning groove 510.

[0235] Reference Figure 2 , Figure 8 and Figure 9 As shown, in one embodiment, the second moving member 600 has a second positioning groove 610, a third through groove 620, and a fourth through groove 630. The width of the second positioning groove 610 extending along the first horizontal direction X is greater than the sum of the diameters of the second positioning member 3222 and the fourth positioning member 3242. The second positioning member 3222 and the fourth positioning member 3242 are respectively installed in the second positioning groove 610 and respectively abut against the two side walls of the second positioning groove 610 that are spaced apart and opposite to each other in the first horizontal direction X. The third through groove 620 and the fourth through groove 630 extend from opposite sides of the second moving member 600 in the first horizontal direction X to the second positioning groove 610. The portion of the first flexible traction member 322 near the second positioning member 3222 passes through the third through groove 620, and the portion of the second flexible traction member 324 near the fourth positioning member 3242 passes through the fourth through groove 630. The first positioning groove 510 has a second mounting opening 611 that extends through the top of the second movable member 600. The second positioning member 3222 and the fourth positioning member 3242 can be installed into the second positioning groove 610 through the second mounting opening 611, respectively. The setting principle of the second positioning groove 610, the third through groove 620 and the fourth through groove 630 on the second movable member 600 is similar to that of the first positioning groove 510, the first through groove 520 and the second through groove 530 on the first movable member 500, and will not be described in detail here.

[0236] Reference Figure 2 , Figure 5 , Figure 6 , Figure 8 , Figure 13 and Figure 17As shown, in a first embodiment of the first transmission mechanism 320, the first transmission mechanism 320 is a pulley transmission mechanism 3201. The first guide wheel 321 and the second guide wheel 323 are both fixed pulleys. The first flexible traction member 322 and the second flexible traction member 324 are both metal wires. The metal wires can be steel wire or other metal wires. When the power source 310 drives one of the first moving member 500 and the second moving member 600 to move the first transmission mechanism 320, the positions of the shafts of the two fixed pulleys remain fixed to change the direction of the force. The first flexible traction member 322 and the second flexible traction member 324 move around the two fixed pulleys respectively, and pull the other of the first moving member 500 and the second moving member 600 to move, thereby realizing the reverse linkage between the first moving member 500 and the second moving member 600. In this embodiment, using two pulley transmission mechanisms 3201 to achieve the reverse linkage connection between the first moving member 500 and the second moving member 600 simplifies the structure of the first transmission mechanism 320 and reduces the cost significantly. Using metal wire as the flexible traction element helps ensure the tensile strength of the first flexible traction element 322 and the second flexible traction element 324, thereby ensuring their service life. Of course, in specific applications, the first flexible traction element 322 and the second flexible traction element 324 are not limited to using metal wire. For example, in alternative embodiments, at least one of the first flexible traction element 322 and the second flexible traction element 324 can also be a traction rope, which can be a fiber rope.

[0237] Or, refer to Figure 18 and Figure 19 As shown, in a second embodiment of the first transmission mechanism 320, the first transmission mechanism 320 is a combination of a pulley transmission mechanism 3201 and a sprocket and chain transmission mechanism 3202. The first guide wheel 321 is a fixed pulley, the first flexible traction member 322 is a traction rope or wire, the second guide wheel 323 is a sprocket, and the second flexible traction member 324 is a chain. In this embodiment, the reverse linkage connection between the first moving member 500 and the second moving member 600 can also be achieved by using one pulley transmission mechanism 3201 and one sprocket and chain transmission mechanism 3202, and its cost is relatively low.

[0238] Alternatively, as a third embodiment of the first transmission mechanism 320, the first transmission mechanism 320 is a sprocket and chain transmission mechanism 3202, in which the first guide wheel 321 and the second guide wheel 323 are both sprockets, and the first flexible traction member 322 and the second flexible traction member 324 are both chains. In this embodiment, the reverse linkage connection between the first moving member 500 and the second moving member 600 can also be achieved by using two sprocket and chain transmission mechanisms 3202 in cooperation, and its cost is relatively low.

[0239] Reference Figure 4, Figure 5 and Figure 6 As shown, in one embodiment, the height-adjustable table 10 also includes a tension adjustment mechanism 700. The tension adjustment mechanism 700 is connected to at least one of the first guide wheel 321 and the second guide wheel 323, and is configured to adjust the distance between the first guide wheel 321 and the second guide wheel 323 under the action of an external force, thereby changing the tension of at least one of the first flexible traction member 322 and the second flexible traction member 324. In specific applications, the tension adjustment mechanism 700 can adjust the distance between the first guide wheel 321 and the second guide wheel 323 under the user's operation to tension the first flexible traction member 322 and the second flexible traction member 324, thereby reducing the error in the linkage between the first moving member 500 and the second moving member 600, and further facilitating the precise linkage between the first support leg 210 and the second support leg 220, maintaining the level of the tabletop 100.

[0240] Reference Figure 4 , Figure 5 and Figure 6 As shown, in one embodiment, the tension adjustment mechanism 700 includes a first tension adjustment member 710. The first tension adjustment member 710 is connected to the first guide wheel 321 and movably connected to the tabletop 100. It is used to drive the first guide wheel 321 towards or away from the second guide wheel 323 under the action of an external force to adjust the tension of the first flexible traction member 322. Under user operation, the first tension adjustment member 710 can adjust the first guide wheel 321 to move left or right to tension the first flexible traction member 322, thereby reducing the error in the linkage between the first moving member 500 and the second moving member 600, and further facilitating precise linkage between the first support leg 210 and the second support leg 220, maintaining the tabletop 100 horizontally.

[0241] In one implementation, the first tension adjusting member 710 is an adjusting screw. By screwing the adjusting screw in or out, the first guide wheel 321 can be adjusted to move to the right or left.

[0242] Reference Figure 4 , Figure 5 and Figure 6As shown, in one embodiment, the tension adjustment mechanism 700 includes a second tension adjustment member 720. The second tension adjustment member 720 is connected to the second guide wheel 323 and movably connected to the tabletop 100. It is used to drive the second guide wheel 323 towards or away from the first guide wheel 321 under the action of an external force to adjust the tension of the second flexible traction member 324. Under user operation, the second tension adjustment member 720 can adjust the second guide wheel 323 to move left or right to tension the second flexible traction member 324, thereby reducing the error in the linkage between the first moving member 500 and the second moving member 600, and further facilitating the precise linkage between the first support leg 210 and the second support leg 220, maintaining the level of the tabletop 100. It should be noted that the tension adjustment mechanism 700 may include both the first tension adjustment member 710 and the second tension adjustment member 720, or it may include only one of the first tension adjustment member 710 and the second tension adjustment member 720.

[0243] In one implementation, the second tension adjusting member 720 is an adjusting screw.

[0244] Reference Figure 2 , Figure 5 and Figure 7 As shown, in one embodiment, the height-adjustable table 10 further includes a first guide rail 800, which integrally forms a first guide slide portion 810 and a second guide slide portion 820. Both the first guide slide portion 810 and the second guide slide portion 820 extend along a first horizontal direction X and are spaced apart along a second horizontal direction Y. A first moving member 500 is slidably connected to the first guide slide portion 810. A second moving member 600 is slidably connected to the second guide slide portion 820. The first horizontal direction X and the second horizontal direction Y are perpendicular to each other. The first guide slide portion 810 is mainly used to provide a movement path for the first moving member 500, so that the first moving member 500 can only reciprocate along the first guide slide portion 810 in the first horizontal direction X. The second guide slide portion 820 is mainly used to provide a movement path for the second moving member 600, so that the second moving member 600 can only reciprocate along the second guide slide portion 820 in the first horizontal direction X. In this embodiment, the first guide slide 810 and the second guide slide 820 are integrally formed on the same guide rail. This reduces the number of parts, thereby reducing assembly steps, and also ensures the relative positional accuracy of the first guide slide 810 and the second guide slide 820. Of course, in specific applications, as an alternative embodiment, the first guide slide 810 and the second guide slide 820 can also be separately disposed on two different guide rails.

[0245] In the above scheme, the first horizontal direction X is the left-right direction, and the second horizontal direction Y is the front-back direction. Of course, in an alternative implementation, the first horizontal direction X can also be the front-back direction, and the second horizontal direction Y can be the left-right direction.

[0246] In one embodiment, the first guide slide 810 is a first groove integrally formed on the first guide rail 800. The second guide slide 820 is a second groove integrally formed on the first guide rail 800. The first guide rail 800 is an integrally formed profile, on which the first and second grooves are formed through along its length. The first moving member 500 is at least partially movably disposed within the first groove, and the second moving member 600 is at least partially movably disposed within the second groove. In this embodiment, the first guide slide 810 and the second guide slide 820 are configured as a first groove and a second groove integrally formed on the first guide rail 800. This, on the one hand, helps to reduce the material cost of the first guide rail 800, and on the other hand, facilitates the extrusion manufacturing of the first guide rail 800.

[0247] In one implementation, the first moving member 500 is a slider. The first groove includes a first groove body and a first groove opening. Both the first groove body and the first groove opening are disposed along a first horizontal direction X, penetrating the first guide rail 800. The first groove body is located between the top and bottom of the first guide rail 800. The first groove opening extends from the bottom of the first guide rail 800 and connects to the first groove body. The width of the first groove opening is smaller than the width of the first groove body. The first moving member 500 includes a first slider body and a first connecting lug. The first connecting lug protrudes from the bottom of the first slider body. The first slider body is slidably inserted into the first groove body. The first connecting lug extends from the first groove opening below the first guide rail 800 and is rotatably connected to the top end of the first main support member 211. One end of the first flexible traction member 322 and one end of the second flexible traction member 324 are respectively connected to the first slider body. The first slider body is mainly used to achieve a sliding fit with the first guide rail 800, and the first connecting lug is mainly used to achieve a rotatable connection with the first main support member 211. The first groove is mainly used to limit the position of the first slider body and guide the first slider to reciprocate along the first horizontal direction X. The first slot is mainly used to avoid the first connecting lug, so that the first connecting lug can extend below the first guide rail 800 and be rotatably connected to the top of the first main support member 211. In this embodiment, the first moving member 500 is a slider, which can realize sliding engagement with the first groove and rotatable connection with the first main support member 211. Of course, in specific applications, the arrangement of the first moving member 500 is not limited to this. For example, as an alternative embodiment, the first moving member 500 can also be a roller or a bearing.

[0248] In one implementation, the second moving member 600 is a slider. The second groove includes a second groove body and a second groove opening, both extending through the first guide rail 800 along a first horizontal direction X. The second groove body is located between the top and bottom of the first guide rail 800, and the second groove opening extends from the bottom of the first guide rail 800, connecting to the second groove body. The width of the second groove opening is smaller than the width of the second groove body. The second moving member 600 includes a second slider body and a second connecting lug. The second connecting lug protrudes from the bottom of the second slider body, allowing the second slider body to slidably pass through the second groove body. The second connecting lug extends from the second groove opening below the first guide rail 800 and is rotatably connected to the top of the second main support member 221. One end of the first flexible traction member 322 and one end of the second flexible traction member 324 are respectively connected to the second slider body. Of course, in specific applications, the arrangement of the second moving member 600 is not limited to this. For example, as an alternative implementation, the second moving member 600 can also be a roller or a bearing.

[0249] Reference Figure 2 , Figure 5 and Figure 7As shown, in a first embodiment of the first guide rail 800, there are two first guide rails 800, and correspondingly two first moving parts 500 and two second moving parts 600. The two first guide rails 800 are spaced apart in the second horizontal direction Y, and each first guide rail 800 is slidably mounted with one first moving part 500 and one second moving part 600. The first main support member 211 includes two first support rods 2111 spaced apart in the second horizontal direction Y, and the top ends of the two first support rods 2111 are rotatably connected to the two first moving parts 500 respectively. The second main support member 221 includes two second support rods 2211 spaced apart in the second horizontal direction Y, and the top ends of the two second support rods 2211 are rotatably connected to the two second moving parts 600 respectively. The power source 310 is connected to either the two first moving parts 500 or the two second moving parts 600 via a transmission connection. In this embodiment, the top ends of the first main support member 211 and the second main support member 221 are guided to move along the first horizontal direction X by setting up double guide rails spaced back and forth. This allows the support leg assembly 200 to provide left and right support points for the tabletop 100 via the left and right-side-arranged first and second support legs 210 and 220, and also to provide front and rear support points for the tabletop 100 via each support leg. This ensures reliable support for the tabletop 100 in all directions (front, back, left, and right), thereby improving the stability and reliability of the height-adjustable table 10. The first guide rail 800 in this embodiment is applicable to the frame-shaped first main support member 211 (i.e., the first main support member 211 including two first support rods 2111) and the frame-shaped second main support member 221 (i.e., the second main support member 221 including two second support rods 2211).

[0250] As a further embodiment of the first implementation of the first guide rail 800, the number of power sources 310 is one. The power source 310 is connected to the top ends of the two first support rods 2111 and the two first moving parts 500 through the first connecting component 2112. This facilitates the synchronous driving of the top ends of the two first support rods 2111 and the two first moving parts 500 by a single power source 310.

[0251] Or, refer to Figures 13 to 20As shown, in a second embodiment of the first guide rail 800, the number of first guide rails 800, the number of first moving parts 500, and the number of second moving parts 600 are all one; the top end of the first main support member 211 is rotatably connected to the first moving part 500; the top end of the second main support member 221 is rotatably connected to the second moving part 600. The first guide rail 800 of this embodiment is applicable to the aforementioned single-rod first main support member 211 (i.e., the first main support member 211 including a single fifth support rod) and single-rod second main support member 221 (i.e., the second main support member 221 including a single sixth support rod), and is applicable to the aforementioned inverted T-shaped or quasi-inverted T-shaped first main support member 211 (i.e., the first main support member 211 including a first part 2116 and a second part 2117) and inverted T-shaped or quasi-inverted T-shaped second main support member 221 (i.e., the second main support member 221 including a third part 2215 and a fourth part 2216).

[0252] As a further embodiment of the second implementation of the first guide rail 800, the first guide rail 800 is centered on the two opposite edges of the tabletop 100 in the second horizontal direction Y. This makes it easier for the support points provided by the support leg assembly 200 to the tabletop 100 to be close to the middle area of ​​the tabletop 100 in the front and rear directions, thereby reducing the probability of the tabletop 100 tipping over under force.

[0253] Reference Figure 2 , Figure 10 and Figure 11As shown, in a fourth embodiment of the first transmission mechanism 320, the first transmission mechanism 320 is a gear and rack transmission mechanism 3203. The first transmission mechanism 320 includes a first rack 325, a first gear 326, and a second rack 327. The first rack 325, the first gear 326, and the second rack 327 are sequentially distributed along the second horizontal direction Y, and the first rack 325 and the second rack 327 are movably connected to the bottom of the tabletop 100 along the first horizontal direction X. The first gear 326 is rotatably mounted on the bottom of the tabletop 100, and the opposite sides of the first gear 326 mesh with the first rack 325 and the second rack 327, respectively. The top end of the first main support member 211 is rotatable. The first main support member 221 is rotatably connected to the bottom of the tabletop 100 via the first rack 325 and movable along the first horizontal direction X; the top end of the second main support member 221 is rotatably connected to the second rack 327 and movable along the first horizontal direction X; the power source 310 is connected to one of the first rack 325 and the second rack 327 to drive one of the first rack 325 and the second rack 327 to move along the first horizontal direction X, and drives the other of the first rack 325 and the second rack 327 to move in the opposite direction via the first gear 326; the first horizontal direction X and the second horizontal direction Y are perpendicular to each other. In practical applications, when the power source 310 drives one of the first rack 325 and the second rack 327 to move, the first gear 326 will rotate accordingly and drive the other of the first rack 325 and the second rack 327 to move in the opposite direction. This causes the top ends of the first main support member 211 and the second main support member 221 to move in two opposite directions, thereby achieving the effect of reverse linkage between the top ends of the first main support member 211 and the second main support member 221 driven by a single power source 310 and the first transmission mechanism 320. Of course, in practical applications, as an alternative implementation, the power source 310 can also be connected to the first gear 326 to drive the first gear 326 to drive the first rack 325 and the second rack 327 to move in opposite directions. In this alternative implementation, the power source 310 is a motor 311.

[0254] Reference Figure 2 , Figure 10 and Figure 11As shown, in a further embodiment of the fourth implementation of the first transmission mechanism 320 described above, the lifting table 10 further includes a second guide rail 900, which has a third guide slide portion and a fourth guide slide portion. Both the third and fourth guide slide portions extend along a first horizontal direction X and are spaced apart along a second horizontal direction Y. A first rack 325 is slidably connected to the third guide slide portion; a second rack 327 is slidably connected to the fourth guide slide portion. The third guide slide portion is mainly used to provide a movement path for the first rack 325, so that the first rack 325 can only reciprocate along the third guide slide portion in the first horizontal direction X. The fourth guide slide portion is mainly used to provide a movement path for the second rack 327, so that the second rack 327 can only reciprocate along the fourth guide slide portion in the first horizontal direction X. In this embodiment, the second guide rail 900 is integrally formed with a third guide slide and a fourth guide slide, meaning that the third and fourth guide slides are integrally formed on the same guide rail. This reduces the number of parts, thus reducing assembly steps, and also ensures the relative positional accuracy of the third and fourth guide slides. Other configurations of the second guide rail 900 (number, position, etc.) can refer to the first guide rail 800 described above (refer to...). Figure 2 (This will not be elaborated further here. Of course, in specific applications, as an alternative implementation, the third and fourth guide slides can also be set separately on two different guide rails.)

[0255] Reference Figure 2 , Figure 4 , Figure 5 , Figure 10 , Figure 13 and Figure 18As shown, in the first embodiment of the power source 310, the power source 310 is a motor 311. The drive assembly 300 also includes a screw drive mechanism 330. The motor 311 is connected to the top of the first main support member 211 or the top of the second main support member 221 via the screw drive mechanism 330. The power source 310 uses a motor 311, meaning it employs an electric drive scheme, which facilitates the output of greater power, thereby improving the load capacity of the height-adjustable table 10. The screw drive mechanism 330 can convert the rotational power output by the motor 311 into linear motion power and transmit it to the top of the first main support member 211 or the top of the second main support member 221. Furthermore, in this embodiment, the screw drive mechanism 330 is a mechanism with a mechanical self-locking function. After the height-adjustable table 10 is raised to its designated position, the motor 311 stops running. The mechanical self-locking function of the screw drive mechanism 330 keeps the support leg assembly 200 stationary, thereby ensuring the stability of the tabletop 100. The power source 310 in this embodiment can be applied to the first embodiment, the second embodiment, the third embodiment, and the fourth embodiment of the first transmission mechanism 320.

[0256] Or, refer to Figure 12 and Figure 17 As shown, in a second embodiment of the power source 310, the power source 310 is a gas spring 312. The gas spring 312 has a first telescopic rod that can extend and retract. The first telescopic rod is connected to the top end of the first main support member 211 or the top end of the second main support member 221. In this embodiment, the power source 310 adopts a pneumatic drive scheme. The gas spring 312 can directly output linear motion power. The first telescopic rod can extend along a first horizontal direction X or extend in an inclined direction. The power source 310 in this embodiment can also be applied to the first embodiment, the second embodiment, the third embodiment, and the fourth embodiment of the first transmission mechanism 320.

[0257] Alternatively, as a third embodiment of the power source 310, the power source 310 is an electric actuator with a retractable second telescopic rod. The second telescopic rod is connected to the top end of either the first main support member 211 or the top end of the second main support member 221. In this embodiment, the power source 310 employs an electric drive scheme. The electric actuator can directly output linear motion power. The second telescopic rod can extend along the first horizontal direction X or be arranged to extend in an inclined direction. The power source 310 in this embodiment can also be applied to the first, second, third, and fourth embodiments of the first transmission mechanism 320 described above.

[0258] In the above scheme, the drive assembly 300 adopts a configuration of a power source 310 and a first transmission mechanism 320, with the power source 310 being connected to one of the first main support member 211 and the second main support member 221. Of course, in specific applications, the configuration of the drive assembly 300 is not limited to this; for example, refer to… Figure 20 and Figure 21 As shown, in an alternative embodiment, the drive assembly 300 includes a power source 310 and a second transmission mechanism 340. The power source 310 is one in number, and it is connected via the second transmission mechanism 340 to the top ends of the first main support member 211 and the second main support member 221, respectively, to drive the top ends of the first main support member 211 and the second main support member 221 to move in opposite directions. In this alternative embodiment, the power source 310 is simultaneously connected to both the first main support member 211 and the second main support member 221.

[0259] Reference Figure 20 and Figure 21As shown, in a first embodiment of the second transmission mechanism 340, the second transmission mechanism 340 includes a first screw 341, a second screw 342, a first nut 343, a second nut 344, and a transmission assembly 348; the first screw 341 and the second screw 342 are distributed sequentially along the second horizontal direction Y, and the first screw 341 and the second screw 342 both extend along the first horizontal direction X and are rotatably connected to the bottom of the tabletop 100; the first nut 343 is threaded to the first screw 341; the second nut 344 is threaded to the second screw 342; the top end of the first main support member 211 is rotatably connected to the first nut 343, and the top end of the second main support member 221 is rotatably connected to the second nut 344; the power source 310 is a motor 311, and the motor 311 is connected to the first screw 341 and the second screw 342 respectively through the transmission assembly 348. In this embodiment, the helical direction of the first screw 341 is opposite to that of the second screw 342, and the motor 311 drives the first screw 341 and the second screw 342 to rotate in the same direction through the transmission assembly 348. This drives the first nut 343 and the second nut 344 to move the top ends of the first main support member 211 and the second main support member 221 in opposite directions. The first horizontal direction X and the second horizontal direction Y are perpendicular to each other. In this embodiment, by using a single motor 311 to simultaneously drive two screws with opposite helical directions to rotate in the same direction, the nuts on the two screws are driven to move the top ends of the first main support member 211 and the second main support member 221 in opposite directions, thereby achieving the effect of driving the top ends of the first main support member 211 and the second main support member 221 in opposite directions through a single motor 311. Furthermore, since the first screw 341 and the second screw 342 are staggered in the second horizontal direction Y in this embodiment, the horizontal movement stroke of the top end of the first main support member 211 and the top end of the second main support member 221 can also be designed to be greater than half the dimension of the tabletop 100 extending in the first horizontal direction X, thereby increasing the lifting stroke of the lifting table 10.

[0260] Reference Figure 20 and Figure 21As shown, in a further embodiment of the first implementation of the second transmission mechanism 340, when the helical direction of the first screw 341 is opposite to that of the second screw 342, the transmission assembly 348 includes a second gear 3481, a third gear 3482, and a fourth gear 3483. The third gear 3482 is connected to or integrally formed with the first screw 341. The fourth gear 3483 is connected to or integrally formed with the second screw 342. The second gear 3481 is rotatably mounted on the bottom of the tabletop 100, and the opposite sides of the second gear 3481 mesh with the third gear 3482 and the fourth gear 3483, respectively. The motor 311 is connected to the second gear 3481 for driving the second gear 3481 to rotate and drive the third gear 3482 and the fourth gear 3483 to rotate, thereby driving the first screw 341 and the second screw 342 to rotate in the same direction. The transmission connection between the motor 311 and the second gear 3481 can be either a direct connection between the motor's output shaft and the second gear 3481, or an indirect connection via other transmission mechanisms. For example, the motor can be indirectly connected to the second gear 3481 via a worm gear transmission mechanism or an additional gear transmission mechanism. In this embodiment, the motor 311 drives the two screws to rotate in the same direction via a gear transmission mechanism, resulting in a simple and compact structure.

[0261] As a second embodiment of the second transmission mechanism 340, the second transmission mechanism 340 includes a first screw 341, a second screw 342, a first nut 343, a second nut 344, and a transmission assembly; the first screw 341 and the second screw 342 are distributed sequentially along the second horizontal direction Y, and the first screw 341 and the second screw 342 both extend along the first horizontal direction X and are rotatably connected to the bottom of the table 100 respectively; the first nut 343 is threadedly connected to the first screw 341; the second nut 344 is threadedly connected to the second screw 342; the top end of the first main support member 211 is rotatably connected to the first nut 343, and the top end of the second main support member 221 is rotatably connected to the second nut 344; the power source 310 is a motor 311, and the motor 311 is connected to the first screw 341 and the second screw 342 respectively through the transmission assembly. In this embodiment, the first screw 341 has the same helical direction as the second screw 342, and the motor 311 drives the first screw 341 and the second screw 342 to rotate in opposite directions via a transmission assembly. This drives the first nut 343 and the second nut 344 to move the top ends of the first main support member 211 and the second main support member 221 in opposite directions. The first horizontal direction X and the second horizontal direction Y are perpendicular to each other. In this embodiment, by having one motor 311 simultaneously drive two screws with the same helical direction to rotate in opposite directions, the nuts on the two screws drive the top ends of the first main support member 211 and the second main support member 221 to move in opposite directions, thereby achieving the effect of driving the top ends of the first main support member 211 and the second main support member 221 in opposite directions through a single motor 311. Furthermore, in this embodiment, the first screw 341 and the second screw 342 are also staggered in the second horizontal direction Y. Therefore, the horizontal movement stroke of the top end of the first main support member 211 and the top end of the second main support member 221 can also be designed to be greater than half the dimension of the tabletop 100 extending in the first horizontal direction X, thereby increasing the lifting stroke of the lifting table 10.

[0262] Reference Figure 22As shown, in a third embodiment of the second transmission mechanism 340, the second transmission mechanism 340 includes a third screw 345, a third nut 346, and a fourth nut 347. The third screw 345 is rotatably connected to the bottom of the tabletop 100, and the third screw 345 has a first helical portion 3451 and a second helical portion 3452. The first helical portion 3451 and the second helical portion 3452 extend along a first horizontal direction X, and the helical direction of the first helical portion 3451 is opposite to the helical direction of the second helical portion 3452. The third nut 346 is threadedly connected to the first helical portion 3451. The fourth nut 347 is threadedly connected to the second helical portion 3452. The top end of the first main support member 211 is rotatably connected to the third nut 346, and the top end of the second main support member 221 is rotatably connected to the fourth nut 347. The power source 310 is a motor 311, which is connected to the third screw 345 for driving the third screw 345 to rotate. This drives the third nut 346 and the fourth nut 347 to move the top ends of the first main support member 211 and the second main support member 221 in opposite directions. In this embodiment, a single motor 311 drives a screw with a bidirectional thread to rotate, thereby driving the two opposite nuts on the screw to move the top ends of the first main support member 211 and the second main support member 221 in opposite directions. This achieves the effect of driving the top ends of the first main support member 211 and the second main support member 221 in opposite directions through a single motor 311.

[0263] Reference Figure 2 , Figure 4 , Figure 10 , Figure 13 , Figure 18 and Figure 23As shown, in one embodiment, when the power source 310 is a motor 311, the height-adjustable table 10 also includes a main control board, which is electrically connected to the motor 311 to control the motor 311 to operate according to a trigger command. The main control board is configured to, in response to the trigger command, control the motor 311 to sequentially perform the following actions to drive the support leg assembly 200 to raise or lower the table 100: control the motor 311 to operate in a first working mode during a first time period t1, control the motor 311 to operate in a second working mode during a second time period t2, and control the motor 311 to operate in a third working mode during a third time period t3, so that the speed at which the table 100 rises during the first time period t1 and the speed at which the table 100 rises during the third time period t3 are both less than the speed at which the table 100 rises during the second time period t2, or that the speed at which the table 100 falls during the first time period t1 and the speed at which the table 100 falls during the third time period t3 are both less than the speed at which the table 100 falls during the second time period t2. In this embodiment, the motor 311 includes a first time period t1, a second time period t2, and a third time period t3 in one cycle of driving the table 100 to rise and one cycle of driving the table 100 to fall. The motor 311 operates in different ways in these three time periods within the same cycle, resulting in different power outputs from the motor 311 in the three time periods. Furthermore, the lifting speed of the table 100 in the first and second time periods is less than that in the middle time period. That is, the motor 311 adopts a slow start and slow stop control scheme in the first and second time periods, respectively. This helps to ensure the smoothness and stability of the lifting process of the table 100.

[0264] Specifically, the main control board is configured to: respond to the first trigger command, control the motor 311 to sequentially perform the following actions to drive the support leg assembly 200 to lift the tabletop 100: control the motor 311 to operate in a first working mode during the first time period t1, control the motor 311 to operate in a second working mode during the second time period t2, and control the motor 311 to operate in a third working mode during the third time period t3, so that the speed at which the tabletop 100 rises during the first time period t1 and the speed at which the tabletop 100 rises during the third time period t3 are both less than the speed at which the tabletop 100 rises during the second time period t2.

[0265] Specifically, the main control board is also configured to: in response to the second trigger command, control the motor 311 to sequentially perform the following actions to drive the support leg assembly 200 to lower the table 100: control the motor 311 to operate in a first working mode during the first time period t1, control the motor 311 to operate in a second working mode during the second time period t2, and control the motor 311 to operate in a third working mode during the third time period t3, so that the speed at which the table 100 descends during the first time period t1 and the speed at which the table 100 descends during the third time period t3 are both less than the speed at which the table 100 descends during the second time period t2.

[0266] Reference Figure 22 and Figure 23 As shown, in one embodiment, the control motor 311 operates in a first operating mode during a first time period t1, including: the control motor 311 operates by linearly increasing the drive voltage from zero to a target voltage during the first time period t1. The control motor 311 operates in a second operating mode during a second time period t2, including: the control motor 311 operates by maintaining the drive voltage at the target voltage during the second time period t2. The control motor 311 operates in a third operating mode during a third time period t3, including: the control motor 311 operates by linearly decreasing the drive voltage from the target voltage to zero during the third time period t3. In this implementation scheme, during the first time period t1, the motor 311 speed is controlled to accelerate slowly by linearly increasing the voltage, thereby slowly accelerating the support leg assembly 200 to drive the table 100 to rise or fall, so as to achieve a slow start effect; during the second time period t2, the motor 311 speed is controlled to stabilize by constant voltage, thereby uniformly driving the support leg assembly 200 to drive the table 100 to rise or fall; during the third time period t3, the motor 311 speed is controlled to decelerate slowly by linearly decreasing the voltage, thereby slowly decelerating the support leg assembly 200 to drive the table 100 to rise or fall, until the motor 311 stops running, so as to achieve a slow stop effect.

[0267] In one implementation, the control device 400 is mounted on the tabletop 100 and connected to the power source 310 and the main control board, respectively, for user operation to send trigger commands to the main control board. In this implementation, the trigger command is a command generated by the user operating the control device 400; that is, the user can control the motor 311 to drive the support leg assembly 200 to raise and lower the tabletop 100 by operating the control device 400. The operation is simple, convenient, and labor-saving. Of course, in specific applications, as an alternative implementation, the trigger command can also be generated in other ways. For example, the user can also generate a trigger command by operating a remote control, mobile phone, or other mobile terminal to control the motor 311 to drive the support leg assembly 200 to raise and lower the tabletop 100.

[0268] In one implementation, the main control board is further configured to drive the motor 311 to rotate in a first drive current direction in response to a first trigger command. The main control board is also configured to drive the motor 311 to rotate in a second drive current direction in response to a second trigger command. The first drive current direction is opposite to the second drive current direction; that is, the drive current direction of the motor 311 during the upward movement of the lifting table 10 is opposite to the drive current direction of the motor 311 during the downward movement of the lifting table 10.

[0269] In one implementation, the height-adjustable desk 10 also includes a battery. The main control board is electrically connected to the battery, motor 311, and control device 400. The battery powers the motor 311 and control device 400 via the main control board. The battery acts as a built-in power source for the height-adjustable desk 10. This built-in power source design facilitates the portable use of the desk 10, expands its application scenarios, and enhances its product value. Of course, in specific applications, as an alternative implementation, the height-adjustable desk 10 can also be implemented without a battery.

[0270] As one implementation, the battery and main control board are integrated into the motor 311, which improves the compactness of the product structure and reduces the number of connecting wires between the battery, main control board, and motor 311. Of course, in specific applications, as an alternative implementation, the battery and / or main control board can also be installed separately from the motor 311.

[0271] Reference Figure 1 and Figure 4 As shown, in one embodiment, the height-adjustable desk 10 also includes a power cord 101. The main control board is electrically connected to the power cord 101, the motor 311, and the control device 400. The power cord 101 is used to electrically connect to a power supply device independent of the height-adjustable desk 10 and to supply power to the motor 311 and the control device 400 through the main control board. The power supply device is an external power source for the height-adjustable desk 10, which can specifically be a socket connected to mains power. In this embodiment, the use of an external power source facilitates the long-term fixed use of the height-adjustable desk 10. It should be noted that the height-adjustable desk 10 may include both a battery and a power cord 101, or it may include only one of the two.

[0272] In one implementation, the height-adjustable desk 10 also includes a height sensor disposed at the bottom of the desk panel 100 to detect the height position of the desk panel 100 relative to the office desk. Of course, in specific applications, the height-adjustable desk 10 may not have a height sensor, or the height sensor may be disposed on the support leg assembly 200.

[0273] In one implementation, the height-adjustable desk 10 also includes a position sensor located at the bottom of the desk 100 to detect the position of the top end of the first main support member 211 and / or the position of the top end of the second main support member 221, thereby facilitating the detection of the height of the desk 100. Of course, in specific applications, the height-adjustable desk 10 may not be equipped with a position sensor.

[0274] Reference Figure 24As shown, in one embodiment, when the power source 310 is a gas spring 312, the support leg assembly 200 also includes a first damping component 230 and a second damping component 240. The first damping component 230 is located between the bottom end of the first auxiliary support member 212 and the first main support member 211, and the second damping component 240 is located between the bottom end of the second auxiliary support member 222 and the second main support member 221. The first damping component 230 and the second damping component 240 are used to slow down the descent speed of the support leg assembly 200 and the table 100 during the process of the gas spring 312 driving the support leg assembly 200 to descend. The first damping component 230 and the second damping component 240 can be torsion springs or other types of dampers (such as hydraulic dampers, pneumatic dampers, etc.), which are mainly used to prevent the table 100 from descending rapidly. In practical applications, when the height-adjustable table 10 descends to a lower position, as the folding angle of the two side support legs increases, the first damping component 230 and the second damping component 240 automatically take effect. Through the elastic force of the torsion spring or the damping force of the damper, the descent speed of the support legs is slowed down, thereby avoiding the tabletop 100 from falling too quickly due to the increase of the gravitational component force. This helps to improve the operational safety and user comfort during the lifting process of the height-adjustable table 10.

[0275] Reference Figure 1 As shown, in one embodiment, the tabletop 100 is provided with a support groove 110 for placing and positioning a mobile phone or tablet computer. The support groove 110 can be used as a stand for the mobile phone and / or tablet computer, thereby expanding the functionality of the height-adjustable table 10. Of course, in specific applications, as an alternative implementation, the tabletop 100 may not be provided with a support groove 110.

[0276] Reference Figure 1 As shown, in one embodiment, the tabletop 100 has a first front edge 120 and a first rear edge 130, which are spaced apart and opposite to each other in the second horizontal direction Y. Both the first front edge 120 and the first rear edge 130 extend along the first horizontal direction X. The distance from the support groove 110 to the first front edge 120 is less than the distance to the first rear edge 130, that is, the support groove 110 is located close to the front side of the tabletop 100, so that the user can easily place their mobile phone or tablet computer on the support groove 110 to pick up or put it down.

[0277] Reference Figure 1 As shown, in one embodiment, the tabletop 100 is equipped with a cable organizer 140 for securing and positioning cables. The cable organizer 140 is used to organize the cables of the display screen placed on the tabletop 100, thereby preventing the cables from being too messy and affecting the aesthetics and the lifting and lowering of the height-adjustable table 10. Of course, in specific applications, as an alternative implementation, the tabletop 100 may not be equipped with the cable organizer 140.

[0278] In one implementation, the cable organizer 140 has a cable groove for inserting and positioning cables.

[0279] In one implementation, the cable organizer 140 is located less than its distance to the first rear edge 130 than it is located to the first front edge 120, or the cable organizer 140 is positioned along the first rear edge 130. In this embodiment, the cable organizer 140 is positioned close to the rear side of the tabletop 100 to facilitate cable management and reduce cable exposure.

[0280] Reference Figure 25 As shown, in one embodiment, the height-adjustable desk 10 also includes a keyboard tray 102, which extends from below the desk panel 100 along a second horizontal direction Y and protrudes beyond the first front edge 120. Specifically, the keyboard tray 102 is connected to the desk panel 100 and extends from below the desk panel 100, protruding from the front of the desk panel 100. The keyboard tray 102 can be used to place a keyboard or laptop, thus facilitating the expansion of the storage space of the height-adjustable desk 10. Of course, in specific applications, as an alternative implementation, the height-adjustable desk 10 may not include a keyboard tray 102.

[0281] Reference Figure 26 As shown, in one embodiment, the keyboard tray 102 has a second front edge 1021 extending along the first horizontal direction X and disposed away from the tabletop 100. The second front edge 1021 forms an arcuate edge 1022 that is concave relative to its two ends. The arcuate edge 1022 of the keyboard tray 102 can provide a comfortable, enveloping fit for the user, thereby improving the user's comfort when using the height-adjustable desk 10. Of course, in specific applications, the arrangement of the second front edge 1021 is not limited to this. For example, as an alternative embodiment, the second front edge 1021 is a straight edge extending along the first horizontal direction X.

[0282] Reference Figure 27 As shown, in one embodiment, the tabletop 100 also has a recessed groove 150, which is recessed from the first front edge 120 toward the first rear edge 130. The recessed groove 150 allows a notch to be formed on the front side of the tabletop 100, thereby exposing a larger area of ​​the keyboard tray 102 within a limited space. When a laptop or keyboard is placed on the keyboard tray 102, at least a portion of the laptop or keyboard can be supported on the area of ​​the keyboard tray 102 located below the recessed groove 150, thus preventing the front edge of the tabletop 100 from obstructing the keyboard placed on the keyboard tray 102 or interfering with the laptop placed on the keyboard tray 102.

[0283] In one implementation, the clearance groove 150 is a U-shaped groove, a trapezoidal groove, or a semi-circular groove.

[0284] In one implementation, the clearance groove 150 is centered relative to the first front edge 120 in the first horizontal direction X.

[0285] Reference Figure 27 As shown, in one embodiment, the height-adjustable desk 10 further includes a riser platform 103. The desk 100 has a first front edge 120 and a first rear edge 130 that are spaced apart and opposite to each other in the second horizontal direction Y. The riser platform 103 extends upward from the top of the desk 100, and the distance from the riser platform 103 to the first rear edge 130 is less than the distance to the first front edge 120. A display screen can be placed on the riser platform 103. The riser platform 103 can further increase the top height of the height-adjustable desk 10. Of course, in specific applications, as an alternative implementation, the height-adjustable desk 10 may not have the riser platform 103.

[0286] Reference Figure 28 As shown, in one embodiment, the height-adjustable desk 10 includes both a keyboard tray 102 and a riser platform 103. This allows for full utilization of the three-dimensional space to enhance the functionality of the height-adjustable desk 10. Of course, in specific applications, as an alternative implementation, the height-adjustable desk 10 may include only one of the keyboard tray 102 and the riser platform 103, or may include neither the keyboard tray 102 nor the riser platform 103.

[0287] Reference Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 23As shown, the lifting table 10 provided in the second aspect of the present invention includes a tabletop 100, a support leg assembly 200, a drive assembly 300, and a main control board. The support leg assembly 200 is connected to the bottom of the tabletop 100 to support the tabletop 100. The drive assembly 300 includes a motor 311, which is connected to the support leg assembly 200 for driving the support leg assembly 200 to raise or lower the tabletop 100. The main control board is electrically connected to the motor 311 for controlling the operation of the motor 311. The main control board is configured to, in response to a trigger command, control motor 311 to sequentially perform the following actions to drive the support leg assembly 200 to raise or lower the tabletop 100: motor 311 operates in a first working mode during a first time period t1, operates in a second working mode during a second time period t2, and operates in a third working mode during a third time period t3, so that the rising speed of tabletop 100 during the first time period t1 and the rising speed of tabletop 100 during the third time period t3 are both less than the rising speed of tabletop 100 during the second time period t2, or the falling speed of tabletop 100 during the first time period t1 and the falling speed of tabletop 100 during the third time period t3 are both less than the falling speed of tabletop 100 during the second time period t2. In this embodiment, by setting a slow start and slow stop control scheme for motor 311, the smoothness and stability of the tabletop 100's raising and lowering process are improved, and the adverse phenomenon of the display screen falling due to excessive vibration of motor 311 is avoided.

[0288] In one implementation, the control motor 311 operates in a first operating mode during a first time period t1, including: the control motor 311 operates by linearly increasing the drive voltage from zero to a target voltage during the first time period t1. The control motor 311 operates in a second operating mode during a second time period t2, including: the control motor 311 operates by maintaining the drive voltage at the target voltage during the second time period t2. The control motor 311 operates in a third operating mode during a third time period t3, including: the control motor 311 operates by linearly decreasing the drive voltage from the target voltage to zero during the third time period t3.

[0289] Specifically, the main control board is configured to: respond to the first trigger command, control the motor 311 to sequentially perform the following actions to drive the support leg assembly 200 to raise or lower the table 100: control the motor 311 to work in the first working mode during the first time period t1, control the motor 311 to work in the second working mode during the second time period t2, and control the motor 311 to work in the third working mode during the third time period t3, so that the speed at which the table 100 rises during the first time period t1 and the speed at which the table 100 rises during the third time period t3 are both less than the speed at which the table 100 rises during the second time period t2.

[0290] Specifically, the main control board is also configured to: in response to the second trigger command, control the motor 311 to sequentially perform the following actions to drive the support leg assembly 200 to lower the table 100: control the motor 311 to operate in a first working mode during the first time period t1, control the motor 311 to operate in a second working mode during the second time period t2, and control the motor 311 to operate in a third working mode during the third time period t3, so that the speed at which the table 100 descends during the first time period t1 and the speed at which the table 100 descends during the third time period t3 are both less than the speed at which the table 100 descends during the second time period t2.

[0291] In one implementation, the main control board is further configured to drive the motor 311 to rotate in a first drive current direction in response to a first trigger command. The main control board is also configured to drive the motor 311 to rotate in a second drive current direction in response to a second trigger command. The first drive current direction is opposite to the second drive current direction; that is, the drive current direction of the motor 311 during the upward movement of the lifting table 10 is opposite to the drive current direction of the motor 311 during the downward movement of the lifting table 10.

[0292] In one implementation, the height-adjustable table 10 also includes a control device 400. The control device 400 is mounted on the tabletop 100 and connected to the power source 310 and the main control board, respectively, for user operation to send trigger commands to the main control board. In this implementation, the trigger command is a command generated by the user operating the control device 400. That is, the user can control the motor 311 to drive the support leg assembly 200 to raise and lower the tabletop 100 by operating the control device 400. The operation is simple, convenient, and labor-saving. Of course, in specific applications, as an alternative implementation, the trigger command can also be generated in other ways. For example, the user can also generate a trigger command by operating a remote control, mobile phone, or other mobile terminal to control the motor 311 to drive the support leg assembly 200 to raise and lower the tabletop 100.

[0293] In one implementation, the control device 400 is one of a lever, push button, button, knob, or touch control.

[0294] Apart from the differences described above, other parts of the height-adjustable table 10 provided in the second aspect of this utility model embodiment can be referred to the height-adjustable table 10 provided in the first aspect above, and will not be described in detail here.

[0295] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A height-adjustable desk, characterized in that: include: Tabletop; A support leg assembly, the support leg assembly being connected to the bottom of the tabletop for supporting the tabletop; A drive assembly, which is connected to the support leg assembly, is used to drive the support leg assembly to raise or lower the tabletop. The support leg assembly includes a first support leg and a second support leg. The first support leg includes a first main support component and a first auxiliary support component, and the second support leg includes a second main support component and a second auxiliary support component. The bottom ends of the first main support member and the bottom ends of the second main support member are spaced apart below the tabletop along the first horizontal direction; The top ends of the first main support member, the second main support member, the first auxiliary support member, and the second auxiliary support member are movably connected to the bottom of the tabletop. The bottom end of the first auxiliary support member is rotatably connected to the first main support member, and the bottom end of the second auxiliary support member is rotatably connected to the second main support member; The drive assembly is connected to at least one of the first main support member, the second main support member, the first auxiliary support member, and the second auxiliary support member for driving the first main support member and the second main support member to move in opposite directions, thereby driving the support leg assembly to raise or lower the table.

2. The height-adjustable desk as described in claim 1, characterized in that: In the first horizontal direction, the top ends of the first main support member and the second main support member are located between the top ends of the first auxiliary support member and the second auxiliary support member.

3. The height-adjustable desk as described in claim 1, characterized in that: The bottom end of the first auxiliary support member is rotatably connected to the portion of the first main support member located between the top and bottom ends, and the bottom end of the second auxiliary support member is rotatably connected to the portion of the second main support member located between the top and bottom ends.

4. The height-adjustable desk as described in claim 1, characterized in that: The bottom end of the first auxiliary support member is rotatably connected to the bottom end of the first main support member, and the bottom end of the second auxiliary support member is rotatably connected to the bottom end of the second main support member.

5. The height-adjustable desk as described in claim 1, characterized in that: The first main support component includes a first part and a second part. The upper part of the first part is movably connected to the bottom of the tabletop, and the lower part of the first part is connected to the second part. The second part extends along a second horizontal direction. The second main support component includes a third part and a fourth part. The upper part of the third part is movably connected to the bottom of the tabletop, and the lower part of the third part is connected to the fourth part. The fourth part extends along the second horizontal direction. Wherein, the first horizontal direction is perpendicular to the second horizontal direction.

6. The height-adjustable desk as described in claim 1, characterized in that: The first main support component includes two first support rods spaced apart in the second horizontal direction, and the top ends of the two first support rods are respectively movably connected to the bottom of the tabletop; The second main support component includes two second support rods spaced apart in the second horizontal direction, and the top ends of the two second support rods are respectively movably connected to the bottom of the tabletop; In the second horizontal direction, the two first supports are located between the two second supports; The first horizontal direction is perpendicular to the second horizontal direction.

7. The height-adjustable desk as described in claim 6, characterized in that: The first main support component further includes a first connecting component, which is connected between the upper parts of the two first support rods; the drive assembly is connected to the first connecting component in a transmission manner. And / or, the first main support member further includes a second connecting component, the second connecting component being connected between the lower parts of the two first support rods, and the second main support member further includes a third connecting component, the third connecting component being connected between the lower parts of the two second support rods.

8. The height-adjustable desk as described in claim 7, characterized in that: The first main support member further includes a fourth connecting component, which is connected between the middle portions of the two first support rods, and the bottom end of the first auxiliary support member is rotatably connected to the fourth connecting component; The second main support member further includes a fifth connecting component, which is connected between the middle portions of the two second support rods, and the bottom end of the second auxiliary support member is rotatably connected to the fifth connecting component.

9. The height-adjustable desk as described in claim 8, characterized in that: The first auxiliary support component includes two third support rods spaced apart in the second horizontal direction and a sixth connecting component connecting the upper parts of the two third support rods. The bottom ends of the two third support rods are rotatably connected to the fourth connecting component. The second auxiliary support component includes two fourth support rods spaced apart in the second horizontal direction and a seventh connecting component connecting the upper parts of the two fourth support rods. The bottom ends of the two fourth support rods are rotatably connected to the fifth connecting component.

10. The height-adjustable desk as described in any one of claims 1 to 3 or any one of claims 5 to 9, characterized in that: The distance from the connection point between the first main support member and the first auxiliary support member along the length of the first main support member to the top of the first main support member is equal to the length of the first auxiliary support member. The distance from the connection point between the second main support member and the second auxiliary support member along the length of the second main support member to the top of the second main support member is equal to the length of the second auxiliary support member.

11. The height-adjustable desk as described in claim 10, characterized in that: The distance from the connection point between the first main support member and the first auxiliary support member along the length direction of the first main support member to the bottom end of the first main support member is equal to the length of the first auxiliary support member. The distance from the connection point between the second main support member and the second auxiliary support member along the length direction of the second main support member to the bottom end of the second main support member is equal to the length of the second auxiliary support member.

12. The height-adjustable desk as described in claim 1, characterized in that: The top ends of the first main support member and the top ends of the second main support member are movably connected to the bottom of the tabletop in a manner that allows them to rotate and move relative to the tabletop in the first horizontal direction. The drive assembly is used to drive the first support leg and the second support leg to move in opposite directions, so as to drive the support leg assembly to raise or lower the table.

13. The height-adjustable desk as described in claim 12, characterized in that: The drive assembly is drively connected to at least one of the top ends of the first main support member and the second main support member to drive the top ends of the first main support member and the second main support member to move in opposite directions, respectively.

14. The height-adjustable desk as described in claim 1, characterized in that: The drive assembly includes a power source and a first transmission mechanism; The top end of the first main support member and the top end of the second main support member are connected to the power source for transmission. The first transmission mechanism is connected between the top end of the first main support member and the top end of the second main support member, so as to drive the other of the top ends of the first main support member and the second main support member to move in opposite directions when one of the top ends of the first main support member and the second main support member moves under the drive of the power source.

15. The height-adjustable desk as described in claim 14, characterized in that: The height-adjustable table also includes a first moving component and a second moving component. The top end of the first main support component is rotatably connected to the first moving component and is movably connected to the bottom of the tabletop along the first horizontal direction through the first moving component. The top end of the second main support component is rotatably connected to the second moving component and is movably connected to the bottom of the tabletop along the first horizontal direction through the second moving component. The power source is connected to one of the first moving part and the second moving part in a transmission connection. The first transmission mechanism is connected between the first moving member and the second moving member to drive the other moving member in the opposite direction when one of the first moving member and the second moving member moves under the drive of the power source.

16. The height-adjustable desk as described in claim 15, characterized in that: The first transmission mechanism includes a pulley transmission mechanism; Alternatively, the first transmission mechanism may include a sprocket and chain transmission mechanism; Alternatively, the first transmission mechanism may include a combination of a pulley transmission mechanism and a sprocket and chain transmission mechanism.

17. The height-adjustable desk as described in claim 16, characterized in that: The first transmission mechanism includes a first guide wheel, a first flexible traction member, a second guide wheel, and a second flexible traction member; The first guide wheel and the second guide wheel are spaced apart at the bottom of the tabletop along the first horizontal direction and are rotatably connected to the tabletop respectively; The first flexible traction member is wound around the first guide wheel, and both ends of the first flexible traction member extend toward the side where the second guide wheel is located and are respectively connected to the first moving member and the second moving member; The second flexible traction member is wound around the second guide wheel, and both ends of the second flexible traction member extend toward the side where the first guide wheel is located and are respectively connected to the first moving member and the second moving member.

18. The height-adjustable desk as described in claim 17, characterized in that: One end of the first flexible traction member is provided with a first positioning member in the shape of a column or a ball, and the other end is provided with a second positioning member in the shape of a column or a ball. One end of the first flexible traction member is connected to the first moving member through the locking cooperation between the first positioning member and the first moving member, and the other end of the first flexible traction member is connected to the second moving member through the locking cooperation between the second positioning member and the second moving member. One end of the second flexible traction member is provided with a third positioning member in the shape of a column or a ball, and the other end is provided with a fourth positioning member in the shape of a column or a ball. One end of the second flexible traction member is connected to the first moving member through the locking cooperation of the third positioning member and the first moving member. The other end of the second flexible traction member is connected to the second moving member through the locking cooperation of the fourth positioning member and the second moving member.

19. The height-adjustable desk as described in claim 18, characterized in that: The first moving member has a first positioning groove, a first through groove, and a second through groove. The width of the first positioning groove extending along the first horizontal direction is greater than the sum of the diameters of the first positioning member and the third positioning member. The first positioning member and the third positioning member are respectively installed in the first positioning groove and respectively abut against the two side walls of the first positioning groove that are spaced apart and opposite to each other in the first horizontal direction. The first through groove and the second through groove extend from opposite sides of the first moving member in the first horizontal direction to the first positioning groove. The portion of the first flexible traction member near the first positioning member passes through the first through groove, and the portion of the second flexible traction member near the third positioning member passes through the second through groove. And / or, the second moving member has a second positioning groove, a third through groove and a fourth through groove. The width of the second positioning groove extending along the first horizontal direction is greater than the sum of the diameters of the second positioning member and the fourth positioning member. The second positioning member and the fourth positioning member are respectively installed in the second positioning groove and respectively abut against the two side walls of the second positioning groove that are spaced apart and opposite to each other in the first horizontal direction. The third through groove and the fourth through groove extend from the opposite sides of the second moving member in the first horizontal direction to the second positioning groove. The portion of the first flexible traction member near the second positioning member passes through the third through groove, and the portion of the second flexible traction member near the fourth positioning member passes through the fourth through groove.

20. The height-adjustable desk as described in claim 17, characterized in that: The first transmission mechanism is a pulley transmission mechanism, the first guide wheel and the second guide wheel are both fixed pulleys, the first flexible traction member is a traction rope or metal wire, and the second flexible traction member is a traction rope or metal wire; Alternatively, the first transmission mechanism is a combination of a pulley transmission mechanism and a sprocket and chain transmission mechanism, the first guide wheel is a fixed pulley, the first flexible traction member is a traction rope or metal wire, the second guide wheel is a sprocket, and the second flexible traction member is a chain; Alternatively, the first transmission mechanism is a sprocket and chain transmission mechanism, where both the first guide wheel and the second guide wheel are sprockets, and both the first flexible traction member and the second flexible traction member are chains.

21. The height-adjustable desk as described in claim 17, characterized in that: The lifting table also includes a tension adjustment mechanism connected to at least one of the first guide wheel and the second guide wheel, and the tension adjustment mechanism is configured to adjust the distance between the first guide wheel and the second guide wheel under the action of an external force, so as to change the tension of at least one of the first flexible traction member and the second flexible traction member.

22. The height-adjustable desk as described in claim 15, characterized in that: The lifting table also includes a first guide rail, which is integrally formed with a first guide slide and a second guide slide. The first guide slide and the second guide slide both extend along the first horizontal direction and are spaced apart in the second horizontal direction. The first movable component is slidably connected to the first guide portion; The second movable member is slidably connected to the second guide portion; Wherein, the first horizontal direction is perpendicular to the second horizontal direction.

23. The height-adjustable desk as described in claim 22, characterized in that: The number of the first guide rail, the number of the first movable component, and the number of the second movable component are all two. The two first guide rails are spaced apart in the second horizontal direction. Each first guide rail can be slidably mounted with one first movable component and one second movable component. The top end of the first main support component is rotatably connected to the two first movable components. The top end of the second main support component is rotatably connected to the two second movable components. The power source is connected to the two first movable components or the two second movable components in a transmission connection. Alternatively, the number of the first guide rails, the number of the first moving parts, and the number of the second moving parts are all one; the top end of the first main support member is rotatably connected to the first moving part; and the top end of the second main support member is rotatably connected to the second moving part.

24. The height-adjustable desk as described in claim 22, characterized in that: The first guide slide and the second guide slide are integrally formed on the first guide rail as a first slide groove and a second slide groove; And / or, the first moving part is a slider, a roller, or a bearing, and the second moving part is a slider, a roller, or a bearing.

25. The height-adjustable desk as described in claim 14, characterized in that: The first transmission mechanism is a gear and rack transmission mechanism, which includes a first rack, a first gear, and a second rack. The first rack, the first gear, and the second rack are distributed sequentially along a second horizontal direction, and the first rack and the second rack are movably connected to the bottom of the tabletop along the first horizontal direction. The first gear is rotatably mounted on the bottom of the tabletop, and the opposite sides of the first gear mesh with the first rack and the second rack, respectively. The top end of the first main support member is rotatably connected to the first rack and is movably connected to the bottom of the tabletop along the first horizontal direction via the first rack. The top end of the second main support member is rotatably connected to the second rack and is movably connected to the bottom of the tabletop along the first horizontal direction via the second rack; The power source is driveably connected to one of the first rack and the second rack to drive one of the first rack and the second rack to move along the first horizontal direction, and to drive the other of the first rack and the second rack to move in the opposite direction via the first gear; or, the power source is driveably connected to the first gear to drive the first gear to drive the first rack and the second rack to move in the opposite direction. The first horizontal direction is perpendicular to the second horizontal direction.

26. The height-adjustable desk as described in claim 25, characterized in that: The lifting table also includes a second guide rail, which has a third guide slide and a fourth guide slide. The third guide slide and the fourth guide slide both extend along the first horizontal direction and are spaced apart in the second horizontal direction. The first rack is slidably connected to the third guide portion; The second rack is slidably connected to the fourth guide portion.

27. The height-adjustable desk as described in any one of claims 14 to 26, characterized in that: The power source is an electric motor, and the drive assembly further includes a screw transmission mechanism. The electric motor is connected to the top of the first main support member and the top of the second main support member through the screw transmission mechanism. Alternatively, the power source is a gas spring, which has a first telescopic rod that can extend and retract, and the first telescopic rod is connected to one of the top end of the first main support member and the top end of the second main support member. Alternatively, the power source is an electric actuator, which has a second telescopic rod that can extend and retract, and the second telescopic rod is connected to one of the top ends of the first main support member and the second main support member.

28. The height-adjustable desk as described in claim 1, characterized in that: The drive assembly includes a power source and a second transmission mechanism; The power source is one, and the power source is connected to the top of the first main support member and the top of the second main support member respectively through the second transmission mechanism, so as to drive the top of the first main support member and the top of the second main support member to move in opposite directions.

29. The height-adjustable desk as described in claim 28, characterized in that: The second transmission mechanism includes a first screw, a second screw, a first nut, a second nut, and a transmission assembly; The first screw and the second screw are distributed sequentially along the second horizontal direction, and both the first screw and the second screw extend along the first horizontal direction and are rotatably connected to the bottom of the table. The first nut is threadedly connected to the first screw; The second nut is threadedly connected to the second screw; The top end of the first main support member is rotatably connected to the first nut, and the top end of the second main support member is rotatably connected to the second nut; The power source is an electric motor, which is connected to the first screw and the second screw respectively via the transmission assembly; Wherein, the helical direction of the first screw is opposite to that of the second screw, and the motor drives the first screw and the second screw to rotate in the same direction through the transmission assembly, thereby driving the first nut and the second nut to move the top ends of the first main support member and the top ends of the second main support member in opposite directions; Alternatively, the helical direction of the first screw is the same as that of the second screw, and the motor drives the first screw and the second screw to rotate in opposite directions through the transmission assembly, thereby driving the first nut and the second nut to move the top ends of the first main support member and the top ends of the second main support member in opposite directions; The first horizontal direction is perpendicular to the second horizontal direction.

30. The height-adjustable desk as described in claim 29, characterized in that: When the helical direction of the first screw is opposite to that of the helical direction of the second screw, the transmission assembly includes a second gear, a third gear, and a fourth gear; The third gear is connected to or integrally formed with the first screw; The fourth gear is connected to or integrally formed with the second screw; The second gear is rotatably mounted on the bottom of the tabletop, and the opposite sides of the second gear mesh with the third gear and the fourth gear, respectively; The motor is connected to the second gear transmission to drive the second gear to rotate and drive the third gear and the fourth gear to rotate, thereby driving the first screw and the second screw to rotate in the same direction.

31. The height-adjustable desk as described in claim 28, characterized in that: The second transmission mechanism includes a third screw, a third nut, and a fourth nut; The third screw is rotatably connected to the bottom of the tabletop, and the third screw has a first spiral portion and a second spiral portion. The first spiral portion and the second spiral portion extend along the first horizontal direction, and the spiral direction of the first spiral portion is opposite to that of the second spiral portion. The third nut is threadedly connected to the first helical portion; The fourth nut is threadedly connected to the second helical portion; The top end of the first main support member is rotatably connected to the third nut, and the top end of the second main support member is rotatably connected to the fourth nut; The power source is an electric motor, which is connected to the third screw drive to drive the third screw to rotate, thereby driving the third nut and the fourth nut to move the top ends of the first main support member and the second main support member in opposite directions.

32. The height-adjustable desk as described in any one of claims 1 to 9, 12 to 26, or 28 to 31, characterized in that: The drive assembly includes a power source, which is mounted on the bottom of the tabletop.

33. The height-adjustable desk as described in any one of claims 1 to 9, 12 to 26, or 28 to 31, characterized in that: The drive assembly includes a power source, which is a motor. The lifting table also includes a main control board, which is electrically connected to the motor to control the motor to work according to a trigger command. The main control board is configured to, in response to the trigger command, control the motor to sequentially perform the following actions to drive the support leg assembly to raise or lower the tabletop: control the motor to operate in a first working mode during a first time period, control the motor to operate in a second working mode during a second time period, and control the motor to operate in a third working mode during a third time period, so that the speed at which the tabletop rises during the first time period and the speed at which the tabletop rises during the third time period are both less than the speed at which the tabletop rises during the second time period, or that the speed at which the tabletop falls during the first time period and the speed at which the tabletop falls during the third time period are both less than the speed at which the tabletop falls during the second time period.

34. The height-adjustable desk as described in claim 33, characterized in that: The control of the motor to operate in a first operating mode during a first time period includes: controlling the motor to operate in a manner in which the drive voltage linearly increases from zero to the target voltage during the first time period; The control of the motor to operate in a second operating mode during the second time period includes: controlling the motor to operate in a manner in which the drive voltage is maintained at the target voltage during the second time period; The control of the motor to operate in a third operating mode during the third time period includes: controlling the motor to operate in a manner in which the drive voltage linearly decreases from the target voltage to zero during the third time period.

35. The height-adjustable desk as described in claim 33, characterized in that: The height-adjustable desk also includes a control device, which is installed on the desk and connected to the power source and the main control board, respectively, for user operation to send the trigger command to the main control board.

36. The height-adjustable desk as described in claim 35, characterized in that: The height-adjustable table also includes a battery. The main control board is electrically connected to the battery, the motor, and the control device. The battery is used to supply power to the motor and the control device through the main control board. And / or, the height-adjustable table also includes a power cord, and the main control board is electrically connected to the power cord, the motor, and the control device respectively. The power cord is used to electrically connect to a power supply device independent of the height-adjustable table and to supply power to the motor and the control device through the main control board.

37. The height-adjustable desk as described in any one of claims 1 to 9 or any one of claims 12 to 26, characterized in that: The drive assembly includes a power source, which is a gas spring; The support leg assembly further includes a damping component, which is disposed between the bottom end of the first auxiliary support member and the first main support member, to reduce the speed at which the support leg assembly drives the table to descend during the process of the gas spring driving the support leg assembly to descend.

38. The height-adjustable desk as described in any one of claims 1 to 9, 12 to 26, or 28 to 31, characterized in that: The tabletop is equipped with support grooves for placing and positioning mobile phones or tablets; And / or, the tabletop is equipped with a cable organizer for securing and positioning cables.

39. The height-adjustable desk as described in claim 1, characterized in that: The height-adjustable desk also includes a keyboard tray, the desk panel has a first front edge extending along the first horizontal direction, and the keyboard tray extends from below the desk panel along a second horizontal direction and protrudes beyond the first front edge; The first horizontal direction is perpendicular to the second horizontal direction.

40. The height-adjustable desk as described in claim 39, characterized in that: The keyboard tray has a second front edge extending along the first horizontal direction and disposed away from the tabletop, the second front edge forming an arcuate edge that is concave relative to its two ends; And / or, the tabletop also has a first rear edge and a clearance groove, the first front edge and the first rear edge are arranged at intervals opposite each other in the second horizontal direction, and the clearance groove is recessed from the first front edge toward the first rear edge.

41. The height-adjustable table as described in any one of claims 1 to 9, 12 to 26, 28 to 31, 39, or 40, characterized in that: The height-adjustable table also includes a height-adjusting platform. The tabletop has a first front edge and a first rear edge that are spaced apart and opposite to each other in a second horizontal direction. The height-adjusting platform extends upward from the top of the tabletop, and the distance from the height-adjusting platform to the first rear edge is less than the distance to the first front edge.

42. A height-adjustable desk, characterized in that: include: Tabletop; A support leg assembly, the support leg assembly being connected to the bottom of the tabletop for supporting the tabletop; A drive assembly, including a motor, is connected to the support leg assembly for driving the support leg assembly to raise or lower the tabletop; A main control board, which is electrically connected to the motor, for controlling the operation of the motor; The main control board is configured to, in response to a trigger command, control the motor to sequentially perform the following actions to drive the support leg assembly to raise or lower the tabletop: control the motor to operate in a first working mode during a first time period, control the motor to operate in a second working mode during a second time period, and control the motor to operate in a third working mode during a third time period, so that the speed at which the tabletop rises during the first time period and the speed at which the tabletop rises during the third time period are both less than the speed at which the tabletop rises during the second time period, or that the speed at which the tabletop falls during the first time period and the speed at which the tabletop falls during the third time period are both less than the speed at which the tabletop falls during the second time period.

43. The height-adjustable desk as described in claim 42, characterized in that: The control of the motor to operate in a first operating mode during a first time period includes: controlling the motor to operate in a manner in which the drive voltage linearly increases from zero to the target voltage during the first time period; The control of the motor to operate in a second operating mode during the second time period includes: controlling the motor to operate in a manner in which the drive voltage is maintained at the target voltage during the second time period; The control of the motor to operate in a third operating mode during the third time period includes: controlling the motor to operate in a manner in which the drive voltage linearly decreases from the target voltage to zero during the third time period.

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