Height-adjustable work table

Abstract

A height-adjustable work table, comprising a work platform (1), a base (2) and a lifting assembly, wherein the lifting assembly comprises at least one set of lifting arms (3), each set of lifting arms (3) including at least two support arms hinged in the middle: a first support arm (300) and a second support arm (301), a first end of the first support arm (300) and a first end of the second support arm (301) being slidably connected to the work platform (1), and a second end of the first support arm (300) and a second end of the second support arm (301) being slidably connected to the base (2); and the first ends and / or second ends of each set of lifting arms (3) are provided with synchronization assemblies, the synchronization assemblies being used for allowing the first end of the first support arm (300) and the first end of the second support arm (301) to synchronously move towards each other or synchronously move away from each other, and / or being used for allowing the second end of the first support arm (300) and the second end of the second support arm (300) to synchronously move towards each other or synchronously move away from each other. Thus, the height-adjustable work table does not easily flip over, has good support stability, and allows for stable and smooth lifting.

Description

A lifting work table Technical Field

[0001] The present application relates to the technical field of computer carrying equipment, and specifically to a lifting work table. Background Art

[0002] With the continuous development of society, flat-panel displays and tablet computers are becoming increasingly popular in ordinary households, and supporting stands have emerged. Related art refers to height-adjustable work tables for tablet computers, also known as height-adjustable workbenches or desktop computer stands. These are typically placed on a table or countertop and can be raised or lowered to adjust their height during use, meeting the needs of users for healthy working styles, such as standing or alternating between standing and sitting.

[0003] The desktop lifting work table of the related art generally includes a base, a work platform, and an X-shaped lifting arm arranged between the base and the work platform. The lifting arm includes two support rods with an X-shape hinged in the middle: a first support rod and a second support rod. The upper end of the first support rod is rotatably connected to the work platform, and the lower end of the first support rod slides on the base; the lower end of the second support rod is rotatably connected to the base, and the upper end of the second support rod slides on the work platform. The lifting work table also includes a power element, which is generally a gas spring. One end of the gas spring is connected to the work platform, and the other end of the gas spring is connected to the lifting arm. The gas spring is used to provide lifting force for the work platform to rise and to offset or partially offset the load-bearing capacity of the work platform. The lifting work table of the related art controls the action of the gas spring through a brake line and a wrench connected to the work platform, so that the height of the work platform can be adjusted.

[0004] During actual use, the inventor discovered that the lifting work table of the above-mentioned related technology has the following defects: the middle parts of the first support rod and the second support rod of the X-shaped lifting arm of the lifting work table of the related technology are hinged by a hinge pin. When the work platform rises or falls relative to the base, the lower end of the first support rod and the upper end of the second support rod both slide to one side of the lifting work table at the same time, which causes the supporting center of gravity of the lifting arm to deviate from the center of gravity of the load on the work platform, which can easily lead to rollover and pose a safety hazard. Summary of the Invention

[0005] The technical problem to be solved by this application is to overcome the defects of the above-mentioned related technologies and provide a lifting work table with good support stability, in which the support center of gravity of the lifting arm and the center of gravity of the work platform load remain relatively unchanged during lifting, thereby avoiding tipping over.

[0006] The technical solution of this application is to provide a lifting work table with the following structure:

[0007] work platform;

[0008] A base that sits on an existing table or countertop; and

[0009] A lifting assembly connecting the work platform and the base for adjusting the height of the work platform relative to the base, the lifting assembly comprising at least one set of lifting arms, each set of lifting arms comprising at least two arms hinged at the middle: a first arm and a second arm, wherein the first end of the first arm and the first end of the second arm are respectively slidably connected to the work platform, and the second end of the first arm and the second end of the second arm are respectively slidably connected to the base;

[0010] A synchronization component is provided between the first end of the first support arm and the first end of the second support arm of each group of the lifting arms, and the synchronization component is used to make the first end of the first support arm and the first end of the second support arm move toward each other or move away from each other synchronously;

[0011] And / or a synchronization component is provided between the second end of the first arm and the second end of the second arm of each group of the lifting arms, and the synchronization component is used to make the second end of the first arm and the second end of the second arm move toward each other or move away from each other synchronously.

[0012] In some embodiments, the synchronization assembly includes a first sliding member, a second sliding member and a synchronization gear, the first sliding member and the second sliding member move toward or away from each other along the length direction, and the first sliding member is provided with a first tooth portion along the length direction, and the second sliding member is provided with a second tooth portion along the length direction; the synchronization gear is located between the first sliding member and the second sliding member and is engaged with the first tooth portion and the second tooth portion respectively; the synchronization gear is rotatably connected to the working platform, and the first sliding member and the second sliding member are respectively connected to the first end of the first support arm and the first end of the second support arm of each group of the lifting arms; and / or the synchronization gear is rotatably connected to the base, and the first sliding member and the second sliding member are respectively connected to the second end of the first support arm and the second end of the second support arm of each group of the lifting arms.

[0013] In some embodiments, the first end of the first arm and the first end of the second arm of each group of the lifting arms are respectively connected to a first sliding rod that is slidably connected to the working platform, and the second end of the first arm and the second end of the second arm of each group of the lifting arms are respectively connected to a second sliding rod that is slidably connected to the base, the first sliding member and the second sliding member of the synchronization assembly are respectively connected to two of the first sliding rods; and / or the first sliding member and the second sliding member of the synchronization assembly are respectively connected to two of the second sliding rods.

[0014] In some embodiments, the outer ends of the first sliding member and the second sliding member are respectively formed with connecting seats, and the two connecting seats are respectively rotatably connected and axially limited on the two first sliding rods, and / or the two connecting seats are respectively rotatably connected and axially limited on the two second sliding rods.

[0015] In some embodiments, the synchronization assembly also includes a base connected to the work platform and / or base, the synchronization gear is rotatably connected in the base, and the base is provided with two guide holes located on both sides of the synchronization gear and for the first sliding member and the second sliding member to pass through respectively.

[0016] In some embodiments, the synchronization assembly includes a first traction arm, a second traction arm and a rotating arm, and the two ends of the rotating arm are respectively rotatably connected to the first traction arm and the second traction arm, so as to make the first traction arm and the second traction arm fold toward the center or unfold to both sides at the same time; the rotating arm is rotatably connected to the working platform, and the first traction arm and the second traction arm are respectively connected to the first end of the first support arm and the first end of the second support arm of each group of the lifting arms; and / or the rotating arm is rotatably connected to the base, and the first traction arm and the second traction arm are respectively connected to the second end of the first support arm and the second end of the second support arm of each group of the lifting arms.

[0017] In some embodiments, the first end of the first support arm and the first end of the second support arm of each group of the lifting arms are respectively connected to a first sliding rod that is slidably connected to the work platform, and the second end of the first support arm and the second end of the second support arm of each group of the lifting arms are respectively connected to a second sliding rod that is slidably connected to the base; the first traction arm and the second traction arm of the synchronization assembly are respectively rotatably connected to the two first sliding rods; and / or the first traction arm and the second traction arm of the synchronization assembly are respectively rotatably connected to the two second sliding rods.

[0018] In some embodiments, the synchronization assembly includes a first screw rod, a second screw rod and a support, the axes of the first screw rod and the second screw rod are arranged in parallel and move toward or away from each other along the axial direction; the support is rotatably connected to a first rotating block threadedly connected to the first screw rod and a second rotating block threadedly connected to the second screw rod, the first screw rod and the second screw rod are respectively connected to the first end of the first support arm and the first end of the second support arm of each group of the lifting arms, and / or the first screw rod and the second screw rod are respectively connected to the second end of the first support arm and the second end of the second support arm of each group of the lifting arms.

[0019] In some embodiments, the first end of the first arm and the first end of the second arm of each group of the lifting arms are respectively connected to a first sliding rod that is slidably connected to the work platform, and the second end of the first arm and the second end of the second arm of each group of the lifting arms are respectively connected to a second sliding rod that is slidably connected to the base; the first screw rod and the second screw rod of the synchronization assembly are respectively rotatably connected to the two first sliding rods; and / or the first screw rod and the second screw rod of the synchronization assembly are respectively rotatably connected to the two second sliding rods.

[0020] In some embodiments, two fixed seats are connected to the support, both of the fixed seats are provided with a through hole, and the first rotating block and the second rotating block are respectively connected to the two through holes; the thread directions of the first screw rod and the second screw rod are set to opposite directions and the rotation speeds of the first rotating block and the second rotating block are set to the same rotation speed.

[0021] In some embodiments, the synchronization component includes a parallelogram rotation structure and a track, the length direction of the track is perpendicular to the sliding direction of the end of the support arm, the parallelogram rotation structure has two relative first rotation connection points and two relative second rotation connection points, and the two second rotation connection points are respectively slidably connected to the track; the track is connected to the working platform, and the two first rotation connection points are respectively connected to the first end of the first support arm and the first end of the second support arm of each group of the lifting arms; and / or the track is connected to the base, and the two first rotation connection points are respectively connected to the second end of the first support arm and the second end of the second support arm of each group of the lifting arms.

[0022] In some embodiments, the first end of the first arm and the first end of the second arm of each group of the lifting arms are respectively connected to a first sliding rod that is slidably connected to the work platform, and the second end of the first arm and the second end of the second arm of each group of the lifting arms are respectively connected to a second sliding rod that is slidably connected to the base; the two first rotating connection points of the synchronization component are respectively rotationally connected to the two first sliding rods; and / or the two first rotating connection points of the synchronization component are respectively rotationally connected to the two second sliding rods.

[0023] In some embodiments, the parallelogram rotation structure includes four connecting rods that are sequentially connected end-to-end to form a parallelogram.

[0024] In some embodiments, the two first rotating connection points are respectively rotatably connected to a connecting block, the two connecting blocks are respectively rotatably connected and axially limited on the two first sliding rods, and / or the two connecting blocks are respectively rotatably connected and axially limited on the two second sliding rods.

[0025] In some embodiments, two sliders are slidably engaged on the track, and the two sliders are rotatably connected to the two second rotation connection points respectively.

[0026] In some embodiments, there are two synchronization components, and the two synchronization components are respectively arranged on the working platform and the base.

[0027] In some embodiments, the lifting assembly includes two groups of lifting arms, one group of the lifting arms includes a first arm and a second arm, and the first arm and the second arm are hinged; the other group of the lifting arms includes a third arm and the second arm, and the second arm and the third arm are hinged, the first end of the first arm, the first end of the second arm, and the first end of the third arm are respectively slidably connected to the working platform, and the second end of the first arm, the second end of the second arm, and the second end of the third arm are respectively slidably connected to the base.

[0028] In some embodiments, the lifting work table further includes a power element, which is used to provide lifting force for the work platform to rise.

[0029] In some embodiments, the power element is a gas spring or a spring.

[0030] In some embodiments, the power element is an electric push rod or a linear motor.

[0031] In some embodiments, the desktop lifting work table further includes a locking mechanism, wherein the locking mechanism includes a wrench connected to the work platform, and the wrench is connected to the control switch of the power element via a brake line.

[0032] In some embodiments, a keyboard tray is connected to the side of the work platform close to the user.

[0033] In summary, compared with the related art, the lifting work table of the present application has the following advantages: the two support arms of the lifting arm of the lifting work table are hinged in the middle, and the first ends of the two support arms are respectively slidably connected to the work platform, and the second ends of the two support arms are respectively slidably connected to the base, so that the two support arms perform scissor-like movement during the lifting process of the lifting work table, so that the first ends of the two support arms move toward each other or move away from each other at the same time, and at the same time, the second ends of the two support arms move toward each other or move away from each other at the same time; that is, during the lifting process of the lifting work table, the first ends and the second ends of the two support arms are simultaneously retracted toward the center or simultaneously expanded to both sides, so that within the entire height adjustment range of the lifting work table, the support center of gravity of the lifting arm and the center of gravity of the work platform load remain relatively unchanged, or the support center of gravity of the lifting arm is always maintained on the same vertical line as the load center of the work platform, or the support center of gravity of the lifting arm coincides with the load center of gravity of the work platform and will not shift relatively, so that the support stability of the desktop lifting work table is good, and rollover is avoided, and safety is high. Furthermore, the setting of the synchronization component is that when the working platform is raised or lowered relative to the base, the traction or restriction of the synchronization component can make the first ends of the two arms and / or the second ends of the two arms always maintain synchronous movement, that is, the synchronization component makes the upper and lower ends of the first arm and / or the second arm move toward or away from each other at the same time with the same displacement, which not only ensures the smoothness of the lifting and lowering of the working platform, but also ensures that the working platform will not tilt during the rising or descending process and always maintains a horizontal state. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] FIG1 is a schematic structural diagram of a lifting work table according to a first embodiment of the present application.

[0035] FIG2 is a schematic diagram of the lifting work table according to the first embodiment of the present application from another angle.

[0036] FIG3 is a schematic side structural diagram of the lifting work table of Example 1 of the present application.

[0037] FIG4 is a schematic diagram of the internal structure of the lifting work table of Example 1 of the present application.

[0038] FIG5 is a schematic diagram of the lifting work table in the first embodiment of the present application with the working platform at the lowest position.

[0039] FIG6 is a schematic diagram from another angle showing the working platform of the lifting work table in the first embodiment of the present application at the lowest position.

[0040] FIG7 is a schematic structural diagram of the working platform of the lifting work table in the first embodiment of the present application.

[0041] FIG8 is a schematic diagram of the base structure of the lifting work table of Example 1 of the present application.

[0042] FIG9 is a schematic diagram of a partial cross-sectional structure of the lifting work table of the first embodiment of the present application.

[0043] FIG10 is a schematic structural diagram of the lifting work table of the second embodiment of the present application.

[0044] FIG11 is a schematic diagram of the lifting work table according to the second embodiment of the present application from another angle.

[0045] Figure 12 is a schematic side structural diagram of the lifting work table of Example 2 of the present application.

[0046] FIG13 is a schematic diagram of the working platform of the lifting work table in the second embodiment of the present application in the lowest position.

[0047] FIG14 is a schematic diagram from another angle showing the working platform of the lifting work table in the second embodiment of the present application at the lowest position.

[0048] Figure 15 is a schematic diagram of the working platform structure of the lifting work table in Example 2 of the present application.

[0049] Figure 16 is a schematic diagram of the base structure of the lifting work table in Example 2 of the present application.

[0050] Figure 17 is a structural diagram of the lifting work table of Example 3 of the present application.

[0051] FIG18 is a schematic diagram of the lifting work table of the third embodiment of the present application from another angle.

[0052] Figure 19 is a side structural diagram of the lifting work table of Example 3 of the present application.

[0053] Figure 20 is a schematic cross-sectional structural diagram of the lifting work table of Example 3 of the present application.

[0054] FIG21 is a schematic diagram of the enlarged structure of portion A in FIG20 .

[0055] FIG22 is an enlarged structural diagram of portion B in FIG20 .

[0056] Figure 23 is a schematic diagram of the working platform of the lifting work table in Example 3 of the present application in the lowest position.

[0057] Figure 24 is a schematic diagram from another angle of the lifting work table in Example 3 of the present application, in which the working platform is at the lowest position.

[0058] Figure 25 is a schematic diagram of the working platform structure of the lifting work table in Example 3 of the present application.

[0059] Figure 26 is a schematic diagram of the base structure of the lifting work table in Example 3 of the present application.

[0060] Figure 27 is a structural diagram of the lifting work table of Example 4 of the present application.

[0061] Figure 28 is a schematic diagram of the lifting work table in embodiment 4 of the present application from another angle.

[0062] Figure 29 is a side structural diagram of the lifting work table of Example 4 of the present application.

[0063] Figure 30 is a schematic diagram of the working platform of the lifting work table in Example 4 of the present application in the lowest position.

[0064] Figure 31 is a schematic diagram from another angle of the lifting work table in Example 4 of the present application, in which the working platform is at the lowest position.

[0065] Figure 32 is a schematic diagram of the working platform structure of the lifting work table in Example 4 of the present application.

[0066] Figure 33 is a schematic diagram of the base structure of the lifting work table of Example 4 of the present application.

[0067] Description of reference numerals:

[0068] 1. Working platform, 100. First slide rail assembly, 101. First sliding rod, 102. First mounting plate, 2. Base, 200. Second slide rail assembly, 201. Second sliding rod, 202. Second mounting plate, 3. Lifting arm, 300. First support arm, 301. Second support arm, 302. Third support arm, 4. Power element, 5. First synchronization assembly, 500. Synchronous gear, 501. First sliding member, 502. Second sliding member, 503. First tooth portion, 504. Second tooth portion, 505. Base, 506. Guide hole, 507. First connecting seat, 508. Elastic limit block, 6. Wrench, 7. Second synchronization component, 700, first traction arm, 701, second traction arm, 702, rotating arm, 703, main shaft, 704, second connecting seat, 8, third synchronization component, 800, first screw rod, 801, second screw rod, 802, support, 803, first rotating block, 804, second rotating block, 805, third connecting seat, 806, fixed seat, 807, through hole, 808, bearing, 9, fourth synchronization component, 900, parallelogram rotating structure, 901, track, 902, first rotating connection point, 903, second rotating connection point, 904, connecting block, 905, connecting rod, 906, slider. DETAILED DESCRIPTION

[0069] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of the present application and are not intended to limit the scope of protection of the embodiments of the present application. Those skilled in the art may adjust them as needed to suit specific application scenarios.

[0070] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0071] In the embodiments of the present application, unless otherwise expressly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above," "above," and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. The first feature being "below," "below," and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present application, "multiple" means two or more, unless otherwise expressly and specifically limited.

[0072] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0073] Example 1:

[0074] Referring to Figures 1 to 9, an embodiment of the present application discloses a lifting work table, which is also called a desktop workbench, a desktop lifting table, etc. Its structure includes a work platform 1, a base 2, a power element 4 and a lifting component connecting the work platform 1 and the base 2 for adjusting the height of the work platform 1 relative to the base 2. The lifting component includes at least one set of lifting arms 3; the power element 4 is connected between the work platform 1 and the base 2, and is used to provide a lifting force for the work platform 1 to rise and to offset or partially offset the load-bearing capacity of the work platform 1; the work platform 1 is also called a table top, a storage panel, etc., and the base 2 is also called a base 2, a chassis, etc., and the base 2 is placed on a desktop or table top in the prior art.

[0075] In this embodiment, as shown in Figures 1, 2 and 3, the lifting arm 3 of the lifting assembly is a group, and the lifting arm 3 includes a first arm 300 and a second arm 301, the first arm 300 and the second arm 301 are crossed in an X shape and hinged in the middle by a hinge pin; the first end of the first arm 300 and the first end of the second arm 301 are respectively slidably connected to the working platform 1, and the second end of the first arm 300 and the second end of the second arm 301 are respectively slidably connected to the base 2; therefore, when the working platform 1 is adjusted in height relative to the base 2, the two arms perform a scissor-differential motion, so that the first ends of the two arms move toward each other or simultaneously. The lifting table is lifted or lowered, and the first and second ends of the two arms are moved toward each other or away from each other at the same time, that is, during the lifting process of the lifting table, the first ends and the second ends of the two arms are simultaneously retracted toward the center or simultaneously expanded to both sides, so that within the entire height adjustment range of the lifting table, the support center of gravity of the lifting arm 3 and the center of gravity of the load of the work platform 1 remain relatively unchanged, or the support center of gravity of the lifting arm 3 is always maintained on the same vertical line as the load center of gravity of the work platform 1, or the support center of gravity of the lifting arm 3 coincides with the load center of gravity of the work platform 1 and will not shift relatively, thereby ensuring good support stability of the lifting table, avoiding overturning, and having high safety.

[0076] In the above embodiment, the power element 4 is a gas spring capable of outputting thrust. The power element 4 outputs a linear thrust, the direction of which coincides with the axial direction of the power element 4. One end of the power element 4 is rotatably connected to the first arm 300 of the lifting arm 3, and the other end is rotatably connected to the second arm 301 of the lifting arm 3. The power element 4 is arranged at an angle.

[0077] Furthermore, in this embodiment, the gas spring is a controllable gas spring with a control switch or valve switch. To allow the work platform 1 to be locked at different heights within its travel range, the lift table also includes a locking mechanism. This locking mechanism comprises a wrench 6 connected to the work platform 1 and connected to the control switch of the power element 4 via a brake cable. When the wrench 6 is pulled, the control switch of the power element 4 is turned on, and the power element 4 deploys, driving the lift arm 3 to rotate, raising the work platform 1 for height adjustment.

[0078] In other embodiments, the power element 4 may also have the following connection methods: one end of the power element 4 is rotationally connected to the work platform 1, and the other end of the power element 4 is rotationally connected to the lifting assembly; or one end of the power element 4 is rotationally connected to the base 2, and the other end of the power element 4 is rotationally connected to the lifting assembly; or one end of the power element 4 is rotationally connected to the work platform 1, and the other end of the power element 4 is rotationally connected to the base 2; wherein, the other end of the power element 4 is rotationally connected to the lifting assembly, which means that the other end of the power element 4 is rotationally connected to the first arm 300 or the second arm 301 of the lifting assembly.

[0079] In other embodiments, the power element 4 can be horizontally arranged on the work platform 1 or the base 2; taking the power element 4 being horizontally arranged on the work platform 1 as an example, one end of the power element 4 is connected to the work platform 1, and the other end is connected to the first end of the first support arm 300 or the first end of the second support arm 301, that is, one end of the power element 4 is connected to the work platform 1, and the other end is connected to the sliding part of the support arm.

[0080] In other embodiments, the power element 4 may also be other linear drive mechanisms such as an electric push rod, a linear motor, and a hydraulic rod.

[0081] In other embodiments, the power element 4 may also be a spring configured as a torsion spring. For example, the torsion spring may be connected to the hinge axis of the first arm 300 and the second arm 301, with the two legs of the torsion spring respectively abutting against the first arm 300 and the second arm 301. This torsion spring can ensure that the first arm 300 and the second arm 301 always have a tendency to rotate and unfold upward. Alternatively, the spring may be configured as a cylindrical coil spring, with one end connected to the work platform 1 and the other end abutting against the first end of the first arm 300 or the first end of the second arm 301, ensuring that the first end of the first arm 300 or the first end of the second arm 301 always has a tendency to slide, causing the work platform 1 to rise.

[0082] Further in the above embodiment, the upper ends of the two arms are respectively connected to the two first sliding rods 101, and the lower ends of the two arms are respectively connected to the two second sliding rods 201; specifically, the first end of the first arm 300 and the first end of the second arm 301 of each group of lifting arms 3 are respectively connected to the first sliding rod 101 that is slidably connected to the working platform 1, and the second end of the first arm 300 and the second end of the second arm 301 of each group of lifting arms 3 are respectively connected to the second sliding rod 201 that is slidably connected to the base 2.

[0083] For example, as shown in Figures 1, 2, 6 and 8, the upper ends of the two arms are respectively provided with first sliding rods 101 that are slidably connected to the work platform 1, and the lower ends of the two arms are respectively provided with second sliding rods 201 that are slidably connected to the base 2; in other words, there are two first sliding rods 101 slidably connected to the work platform 1, and there are two second sliding rods 201 slidably connected to the base 2, the upper ends of the two arms are respectively connected to the two first sliding rods 101, and the lower ends of the two arms are respectively connected to the two second sliding rods 201. Specifically, the working platform 1 is connected with two groups of first slide rail assemblies 100 distributed at intervals along the length direction, each group of first slide rail assemblies 100 is provided with a slide groove extending along its length direction, and the slide grooves of the two groups of first slide rail assemblies 100 are respectively slidably connected with the first sliding rods 101; similarly, the base 2 is connected with two groups of second slide rail assemblies 200 distributed at intervals along the length direction, each group of second slide rail assemblies 200 is provided with a slide groove extending along its length direction, and the slide grooves of the two groups of second slide rail assemblies 200 are respectively slidably connected with the second sliding rods 201; in this embodiment, the two groups of first slide rail assemblies 100 and the two groups of second slide rail assemblies 200 are respectively opposite to each other and parallel to each other.

[0084] In other embodiments, in order to ensure the smooth sliding of the first sliding rod 101 and the second sliding rod 201, soft friction blocks are connected to the first sliding rod 101 and the second sliding rod 201, or friction pads are provided on the first slide rail assembly 100 and the second slide rail assembly 200, so that the first sliding rod 101 and the second sliding rod 201 can slide more smoothly. The two first slide rail assemblies 100 can also be whole slide rails, but when the two first slide rails slide toward each other to the shortest distance, there is a certain gap between the two, and the gap is sufficient to provide support for the work platform 1. Similarly, the two second slide rail assemblies 200 can also be whole slide rails, but when the two second slide rails slide toward each other to the shortest distance, there is a certain gap between the two, and the gap is sufficient to provide support for the work platform 1.

[0085] In this embodiment, as shown in Figures 1 and 2, the lifting assembly includes two sets of lifting arms 3, one of which includes a first arm 300 and a second arm 301, which are hingedly connected; the other set of lifting arms includes a third arm 302 and a second arm 301, which are hingedly connected. The first end of the first arm 300, the first end of the second arm 301, and the first end of the third arm 302 are respectively slidably connected to the work platform 1, and the second end of the first arm 300, the second end of the second arm 301, and the second end of the third arm 302 are respectively slidably connected to the base 2. This arrangement improves the structural stability of the lifting assembly and increases its load capacity.

[0086] In other embodiments, the lifting arms 3 of the lifting assembly may also be arranged in two groups, three groups, etc., and arranged along the width direction of the working platform 1 .

[0087] In order to ensure that the working platform 1 is stable and level when it is raised or lowered relative to the base 2, it is necessary to ensure that the two first sliding rods 101 and the two second sliding rods 201 remain synchronized during movement, that is, the upper end of the first arm 300 and the upper end of the second arm 301 remain synchronized during movement, and the lower end of the first arm 300 and the lower end of the second arm 301 remain synchronized during movement; specifically, the first end of the first arm 300 of each group of lifting arms 3 and the first end of the second arm 301, and / or the second end of the first arm 300 of each group of lifting arms 3 and the second end of the second arm 301 remain synchronized during movement.

[0088] In some embodiments, as shown in Figures 2, 4 and 7, a synchronization component is provided between the first end of the first arm 300 and the first end of the second arm 301 of each group of lifting arms 3, and the synchronization component is used to make the first end of the first arm 300 and the first end of the second arm 301 move toward each other or move away from each other synchronously; that is, the synchronization component is provided on the working platform 1, and is used to make the first ends of the two arms keep moving synchronously. Because the first arm 300 and the second arm 301 of the two arms are scissors-type lifting structures with the middle hinged in an X shape, when the first ends of the two arms keep moving synchronously, the second ends of the two arms also keep moving synchronously.

[0089] In some embodiments, as shown in Figures 2, 4, and 8, a synchronization assembly is provided between the second end of the first arm 300 and the second end of the second arm 301 of each set of lifting arms 3. The synchronization assembly is used to synchronize the second ends of the first arm 300 and the second arms 301 in moving toward or away from each other. In other words, the synchronization assembly is provided on the base 2 to synchronize the movement of the second ends of the two arms.

[0090] In this embodiment, as shown in Figures 2 and 4, in order to achieve better synchronous movement of the first and second ends of the first arm 300 and the second arm 301, the synchronization assembly is provided in two groups, which are respectively connected to the work platform 1 and the base 2. The configuration of the synchronization assembly allows the traction or restriction of the synchronization assembly to keep the first ends of the two arms and / or the second ends of the two arms in synchronous movement when the work platform 1 is raised or lowered relative to the base 2; that is, the synchronization assembly causes the upper and lower ends of the first arm 300 and / or the second arm 301 to move toward or away from each other at the same time with the same displacement. This not only ensures the smoothness of the lifting and lowering of the work platform 1, but also ensures that the work platform 1 will not tilt during the rising or lowering process and always remains in a horizontal state.

[0091] In the aforementioned embodiment, if the synchronization component is a group, such as being set on the work platform 1, since the second sliding rods 201 at the lower ends of the two support arms are in a sliding fit relationship with the base 2, one end of the power element 4 can be connected to the base 2 and the other end can be connected to the lifting arm 3 to limit the translational sliding between the base 2 and the two second sliding rods 201, or other self-locking mechanisms can be used to limit the translational sliding of the base 2.

[0092] To facilitate understanding of the inventive concept of the present application, the synchronization component of this embodiment is marked as a first synchronization component 5, specifically referring to Figures 2, 4, 6, 7 and 8. The first synchronization component 5 includes a first sliding member 501, a second sliding member 502 and a synchronization gear 500. The first sliding member 501 and the second sliding member 502 are arranged in parallel, and the first sliding member 501 and the second sliding member 502 move toward or away from each other along the length direction, and the first sliding member 501 is provided with a first tooth portion 503 along the length direction, and the second sliding member 502 is provided with a second tooth portion 504 along the length direction; the synchronization gear 500 is located between the first sliding member 501 and the second sliding member 502 and is meshed with the first tooth portion 503 and the second tooth portion 504 respectively; under the action of the meshing transmission of the first tooth portion 503 of the first sliding member 501 and the second tooth portion 504 of the second sliding member 502 with the synchronization gear 500 at the same time, the first sliding member 501 and the second sliding member 502 move toward or away from each other at the same time along the length direction.

[0093] Furthermore, in the above embodiment, the synchronous gear 500 is rotatably connected to the work platform 1, and the first sliding member 501 and the second sliding member 502 are respectively connected to the first end of the first support arm 300 and the first end of the second support arm 301 of each set of lifting arms 3; the synchronous gear 500 is rotatably connected to the base 2, and the first sliding member 501 and the second sliding member 502 are respectively connected to the second end of the first support arm 300 and the second end of the second support arm 301 of each set of lifting arms 3. Specifically, when the synchronous gear 500 is rotatably connected to the work platform 1, the first sliding member 501 and the second sliding member 502 of the first synchronous assembly 5 are respectively connected to the two first sliding rods 101, and when the synchronous gear 500 is rotatably connected to the base 2, the first sliding member 501 and the second sliding member 502 of the first synchronous assembly 5 are respectively connected to the two second sliding rods 201. The setting of the first synchronization component 5 is such that when the working platform 1 is raised or lowered relative to the base 2, the traction or restriction of the first synchronization component 5 can enable the two first sliding rods 101 and / or the two second sliding rods 201 to always maintain synchronous movement. That is, the first synchronization component 5 enables the upper and lower ends of the first support arm 300 and / or the second support arm 301 to move toward or away from each other at the same time with the same displacement. This not only ensures the smoothness of the lifting and lowering of the working platform 1, but also ensures that the working platform 1 will not tilt during the rising or falling process and always maintains a horizontal state.

[0094] In some embodiments, to ensure the smooth translational motion of the first and second sliding members 501, 502 and to ensure that their teeth always remain engaged with the synchronous gear 500, as shown in Figures 7 and 8, the first synchronization assembly 5 further includes a base 505. The synchronous gear 500 is rotatably connected to the base 505. The base 505 is provided with two guide holes 506, one on each side of the synchronous gear 500, for the first and second sliding members 501, 502 to pass through. The provision of the guide holes 506 on the base 505 prevents the first and second sliding members 501, 502 from deviating during motion, thereby maintaining stable motion of the first and second sliding members 501, 502. In this embodiment, the base 505 is connected to the work platform 1 and the base 2, respectively.

[0095] It is understood that when the first arm 300 and the second arm 301 of each set of lifting arms 3 perform scissor-like motion, the first sliding rod 101 and the second sliding rod 201 connected to the first arm 300 and the second arm 301 simultaneously perform translational motion and circumferential rotation around their own axes. Therefore, in this embodiment, as shown in Figures 2, 4, 7, 8, and 9, the outer ends of the first sliding member 501 and the second sliding member 502 are respectively formed with first connecting seats 507, and the two first connecting seats 507 are respectively rotatably connected and axially constrained on the two first sliding rods 101. In addition, the two first connecting seats 507 on the two sliding members of the first synchronization assembly 5 on the base 2 are respectively rotatably connected and axially constrained on the two second sliding rods 201. Specifically, in this embodiment, the two first sliding rods 101 are respectively provided with annular limiting grooves corresponding to the two first connecting seats 507 and are concave; each first connecting seat 507 is connected to an elastic limiting block 508, which is embedded in the annular limiting grooves; similarly, the two second sliding rods 201 are also respectively provided with annular limiting grooves for receiving the elastic limiting blocks 508 on the first connecting seats 507 of the first sliding member 501 and the second sliding member 502 of the first synchronization assembly 5 on the base 2. The elastic limiting blocks 508 embedded in the annular limiting grooves achieve axial limitation between the first connecting seats 507 and the sliding rods, thereby further stabilizing the synchronization of the two sliding members of the first synchronization assembly 5.

[0096] In some embodiments, to facilitate keyboard placement, a keyboard tray is attached to the side of the work platform 1 closest to the user. A support pad is attached to the bottom of the tray. When the work platform 1 is in its lowest position, the bottom plane of the support pad is at the same level as the bottom plane of the base 2. This ensures that when the work platform 1 is in its lowest position, the support pad at the bottom of the keyboard tray is in contact with the ground or tabletop, providing greater stability when the lifting work table is in its standing position.

[0097] Example 2:

[0098] 10 to 16 , an embodiment of the present application discloses a lifting work table, which provides a synchronization component of another structure; in order to distinguish it from the synchronization component of the above embodiment, the synchronization component of this embodiment is marked as a second synchronization component 7, specifically, the second synchronization component 7 includes a first traction arm 700, a second traction arm 701 and a rotating arm 702, and the two ends of the rotating arm 702 are respectively rotatably connected to the first traction arm 700 and the second traction arm 701, so as to make the first traction arm 700 and the second traction arm 701 fold toward the center or unfold to both sides at the same time; that is, when the rotating arm 702 rotates around its rotation center, the two ends of the rotating arm 702 simultaneously drive the first traction arm 700 and the second traction arm 701 to fold toward the center, and when the rotating arm 702 rotates in the opposite direction around its rotation center, the two ends of the rotating arm 702 simultaneously drive the first traction arm 700 and the second traction arm 701 to unfold to both sides.

[0099] In some embodiments, when the second synchronization component 7 is set on the work platform 1, the rotating arm 702 is rotatably connected to the work platform 1, and the first traction arm 700 and the second traction arm 701 are respectively connected to the first end of the first support arm 300 and the first end of the second support arm 301 of each group of lifting arms 3; when the second synchronization component 7 is set on the base 2, the rotating arm 702 is rotatably connected to the base 2, and the first traction arm 700 and the second traction arm 701 are respectively connected to the second end of the first support arm 300 and the second end of the second support arm 301 of each group of lifting arms 3.

[0100] Specifically, in this embodiment, as shown in Figures 10, 11, 15 and 16, the second synchronization assembly 7 is divided into two groups, and is respectively arranged on the working platform 1 and the base 2; the first traction arm 700 and the second traction arm 701 of the second synchronization assembly 7 on the working platform 1 are respectively rotatably connected to the two first sliding rods 101; the first traction arm 700 and the second traction arm 701 of the second synchronization assembly 7 on the base 2 are respectively rotatably connected to the two second sliding rods 201. When the working platform 1 rises and causes the two first sliding rods 101 to move toward each other, the two first sliding rods 101 link the first traction arm 700 and the second traction arm 701 to fold toward the center and cause the rotating arm 702 to rotate around its rotation center along the first direction; similarly, the two second sliding rods 201 on the base 2 link the first traction arm 700 and the second traction arm 701 of the second synchronization component 7 on the base 2 to fold toward the center; when the working platform 1 descends and causes the two first sliding rods 101 to move away from each other, the two first sliding members 501 link the first traction arm 700 and the second traction arm 701 to unfold to both sides and cause the rotating arm 702 to rotate around its rotation center along the second direction; the first direction and the second direction are opposite; that is, the first direction is clockwise, the second direction is counterclockwise, and vice versa.

[0101] In this embodiment, a first mounting plate 102 is installed at the bottom center of the working platform 1, and a second mounting plate 202 is installed at the bottom center of the base 2. The rotating arm 702 of the second synchronization component 7 on the working platform 1 and the rotating arm 702 of the second synchronization component 7 on the base 2 are respectively rotatably connected to the first mounting plate 102 and the second mounting plate 202 through the main shaft 703, and the two traction arms are arranged symmetrically about the center of the main shaft 703.

[0102] Similarly, in this embodiment, when the first arm 300 and the second arm 301 of each lifting arm 3 perform a scissor-like motion, the first sliding rod 101 and the second sliding rod 201 connected to the first arm 300 and the second arm 301 perform a circumferential rotation angle around their own axis while performing a translational motion. As shown in Figures 10, 11, 15 and 16, the two first sliding rods 101 are respectively provided with an inwardly concave annular limiting groove, and the two second sliding rods 201 are also respectively provided with an annular limiting groove; the annular limiting grooves are respectively axially limited and circumferentially rotated with the second connecting seat 704 connected thereto, and each second connecting seat 704 is connected to a limiting block, which is embedded in the annular limiting groove; the limiting block embedded in the annular limiting groove realizes axial limitation between the second connecting seat 704 and the sliding rod. The second connecting seats 704 on the two first sliding rods 101 are respectively connected to the outer ends of the first traction arm 700 and the second traction arm 701 of the second synchronization component 7 on the working platform 1 through hinge pins; similarly, the second connecting seats 704 on the two second sliding rods 201 are respectively connected to the outer ends of the first traction arm 700 and the second traction arm 701 of the second synchronization component 7 on the base 2 through hinge pins.

[0103] Similarly, in this embodiment, as shown in Figures 12, 13, and 14, the lifting work table, under the synchronous action of the second synchronization component 7, can not only ensure the smooth lifting and lowering of the work platform 1, but also ensure that the work platform 1 will not tilt during the ascent or descent process and always remain in a horizontal state. The other technical solutions of this embodiment are the same as those of the above-mentioned embodiment 1 and will not be repeated in this embodiment.

[0104] Example 3:

[0105] 17 to 26 , an embodiment of the present application discloses a lifting work table, which provides a synchronization component of another structure; in order to distinguish it from the synchronization component of the above embodiment, the synchronization component of this embodiment is marked as a third synchronization component 8, specifically, the third synchronization component 8 includes a first screw rod 800, a second screw rod 801 and a support 802, the axes of the first screw rod 800 and the second screw rod 801 are arranged in parallel and move toward or away from each other along the axial direction; a first rotating block 803 threadedly connected to the first screw rod 800 and a second rotating block 804 threadedly connected to the second screw rod 801 are rotatably connected to the support 802; that is, the third synchronization component 8 adopts the cooperation of the screw rod and the rotating block threadedly connected to the screw rod, when the sliding rods of the two arms of the lifting arm 3 drive the screw rod to move, the rotating block can rotate in the circumferential direction, conversely, limiting the rotation speed of the rotating block can limit the movement speed of the screw rod, so that the first screw rod 800 and the second screw rod 801 of the third synchronization component 8 maintain synchronous movement.

[0106] In some embodiments, as shown in Figures 17, 18, 25 and 26, when the third synchronization component 8 is set on the work platform 1, the support 802 is fixedly connected to the work platform 1, and the first screw rod 800 and the second screw rod 801 are respectively connected to the first end of the first arm 300 and the first end of the second arm 301 of each group of lifting arms 3; when the third synchronization component 8 is set on the base 2, the support 802 is fixedly connected to the base 2, and the first screw rod 800 and the second screw rod 801 are respectively connected to the second end of the first arm 300 and the second end of the second arm 301 of each group of lifting arms 3.

[0107] Specifically in this embodiment, as shown in Figures 17, 18, 25 and 26, there are two sets of third synchronization components 8, which are respectively arranged on the work platform 1 and the base 2; the first screw rod 800 and the second screw rod 801 of the third synchronization component 8 on the work platform 1 are respectively rotatably connected to the two first sliding rods 101; the first screw rod 800 and the second screw rod 801 of the third synchronization component 8 on the base 2 are respectively rotatably connected to the two second sliding rods 201. When the work platform 1 is raised or lowered relative to the base 2, the traction or restriction of the two sets of third synchronization components 8 can keep the two first sliding rods 101 and the two second sliding rods 201 in synchronous motion; that is, the two sets of third synchronization components 8 make the upper and lower ends of the first support arm 300 and the second support arm 301 move toward or away from each other at the same displacement, which not only ensures the smooth lifting and lowering of the work platform 1, but also ensures that the work platform 1 will not tilt during the raising or lowering process and always remains in a horizontal state.

[0108] In this embodiment, as shown in Figures 18, 25 and 26, when the working platform 1 rises relative to the base 2, the first arm 300 and the second arm 301 drive the first screw rod 800 and the second screw rod 801 to move toward each other, and at the same time, the first screw rod 800 and the second screw rod 801 of the third synchronous component 8 on the base 2 are linked to move toward each other and close together; conversely, when the working platform 1 descends relative to the base 2, the first arm 300 and the second arm 301 drive the first screw rod 800 and the second screw rod 801 to move away from each other, and at the same time, the first screw rod 800 and the second screw rod 801 of the third synchronous component 8 on the base 2 are linked to move away from each other and expand; the rotating block and the transmission nut threaded on the screw rod have the same function, and the threaded connection between the screw rod and the rotating block cooperates. The movements of the first screw rod 800 and the second screw rod 801 are kept synchronized, which not only ensures the smoothness of the lifting and lowering of the working platform 1, but also ensures that the working platform 1 will not tilt during the rising or falling process and always remains in a horizontal state, see the rising state and the falling state shown in Figures 19, 20, 23 and 24.

[0109] Further, referring to Figures 20, 21, 22, 25, and 26, two fixed seats 806 are connected to the support 802 of the third synchronization assembly 8. Both fixed seats 806 are provided with through holes 807. The first rotating block 803 and the second rotating block 804 are connected to the two through holes 807, respectively. The first rotating block 803 and the second rotating block 804 are connected to the inner walls of the through holes 807 via bearings 808. In this embodiment, to ensure the smoothness and synchronization of the translational motion of the first screw rod 800 and the second screw rod 801, the thread directions of the first screw rod 800 and the second screw rod 801 are set to opposite directions, and the rotation speeds of the first rotating block 803 and the second rotating block 804 are set to the same speed. In this way, when the first screw rod 800 and the second screw rod 801 move toward or away from each other, the first rotating block 803 and the second rotating block 804 rotate in the same direction, which facilitates the control of the rotation speed. Of course, the same rotational speed of the first rotating block 803 and the second rotating block 804 can also be ensured by setting the bearing 808 parameters of the first rotating block 803 and the second rotating block 804 or applying the same friction force to the first rotating block 803 and the second rotating block 804 .

[0110] Also in this embodiment, as shown in Figures 25 and 26, the outer ends of the first screw rod 800 and the second screw rod 801 of the third synchronization component 8 are respectively connected to a third connecting seat 805, and the third connecting seat 805 is axially limited and circumferentially rotated in the annular limiting groove of the first sliding rod 101 and / or the second sliding rod 201. A limiting block is connected to each third connecting seat 805, and the limiting block is embedded in the annular limiting groove; the axial limitation between the third connecting seat 805 and the sliding rod is achieved by embedding the limiting block in the annular limiting groove.

[0111] The other technical solutions of this embodiment are the same as those of the above-mentioned embodiment 1 and will not be described in detail in this embodiment.

[0112] Example 4:

[0113] 27 to 33 , an embodiment of the present application discloses a lifting work table, which provides a synchronization component of another structure; in order to distinguish it from the synchronization component of the above embodiment, the synchronization component of this embodiment is marked as a fourth synchronization component 9, specifically, the fourth synchronization component 9 includes a parallelogram rotation structure 900 and a track 901, the length direction of the track 901 is perpendicular to the sliding direction of the end of the support arm, the parallelogram rotation structure 900 has two relative first rotation connection points 902 and two relative second rotation connection points 903, and the two second rotation connection points 903 are respectively slidably connected to the track 901; utilizing the characteristics of the parallelogram rotation structure 900, when the two second rotation connection points 903 move toward or away from each other along the length direction of the track 901, the two first rotation connection points 902 of the parallelogram rotation structure 900 move away from or toward each other; that is, the two first rotation connection points 902 and the two second rotation connection points 903 always maintain synchronous movement.

[0114] In some embodiments, as shown in Figures 27, 28, 32 and 33, when the fourth synchronization component 9 is set on the working platform 1, the track 901 is fixedly connected to the working platform 1, and the two first rotation connection points 902 of the parallelogram rotation structure 900 are respectively connected to the first end of the first arm 300 and the first end of the second arm 301 of each group of lifting arms 3; when the fourth synchronization component 9 is set on the base 2, the track 901 is fixedly connected to the base 2, and the two first rotation connection points 902 are respectively connected to the second end of the first arm 300 and the second end of the second arm 301 of each group of lifting arms 3.

[0115] Specifically in this embodiment, as shown in Figures 27, 28, 32 and 33, the fourth synchronization component 9 is divided into two groups, and is respectively arranged on the working platform 1 and the base 2; the two first rotation connection points 902 of the fourth synchronization component 9 on the working platform 1 are respectively rotationally connected to the two first sliding rods 101; the two first rotation connection points 902 of the fourth synchronization component 9 on the base 2 are respectively rotationally connected to the two second sliding rods 201. In this way, when the working platform 1 rises relative to the base 2, the first arm 300 and the second arm 301 drive the two first sliding rods 101 to move toward each other, so that the two first rotation connection points 902 of the parallelogram rotation structure 900 move toward each other and get closer at the same time, and the two second rotation connection points 903 are linked to move away from each other along the length direction of the track 901; conversely, when the working platform 1 descends relative to the base 2, the first arm 300 and the second arm 301 drive the two first sliding rods 101 to move away from each other, so that the two first rotation connection points 902 of the parallelogram rotation structure 900 move away from each other and expand at the same time, and the two second rotation connection points 903 are linked to move toward each other along the length direction of the track 901. Therefore, the cooperation between the parallelogram rotating structure 900 and the track 901 can make the two first rotating connection points 902 move toward each other or move away from each other at the same time, which can effectively ensure that the upper end of the first arm 300 and the upper end of the second arm 301, and / or the lower end of the first arm 300 and the lower end of the second arm 301 always maintain synchronous movement; this not only ensures the stability of the lifting and lowering of the working platform 1, but also ensures that the working platform 1 will not tilt during the rising or falling process and always maintains a horizontal state.

[0116] In this embodiment, the track 901 is connected to the middle position of the bottom of the working platform 1 along the width direction of the working platform 1, and / or the track 901 is connected to the middle position of the bottom of the base 2 along the width direction of the base 2; in this embodiment, the two first rotation connection points 902 and the two second rotation connection points 903 both refer to the rotation vertices of the parallelogram rotation structure 900, which can be the rotation vertices or hinge points formed by the rotation axis, hinge pin, etc.

[0117] Further in this embodiment, the parallelogram rotation structure 900 includes four connecting rods 905 that are rotatably connected end to end in sequence to form a parallelogram. The four connecting rods 905 are equal in length and are rotatably connected through four rotating shafts. Two opposite vertices form two first rotation connection points 902, and another group of two opposite vertices form two second rotation connection points 903.

[0118] Also in this embodiment, as shown in Figures 27, 28, 32, and 33, the two first rotational connection points 902 of the fourth synchronous assembly 9 on the work platform 1 are rotatably connected to a connecting block 904 via a hinge pin. The two connecting blocks 904 are rotatably connected and axially limited within the annular limiting grooves on the two first sliding rods 101. The connecting blocks 904 rotatably connected to the two first rotational connection points 902 of the fourth synchronous assembly 9 on the base 2 are rotatably connected and axially limited within the annular limiting grooves on the two second sliding rods 201. Each connecting block 904 is connected to a limiting block, which is embedded in the annular limiting groove. The axial limitation between the connecting block 904 and the sliding rod is achieved by embedding the limiting block in the annular limiting groove.

[0119] In some embodiments, two sliders 906 are slidably engaged with the rail 901, and the two sliders 906 are rotatably connected to the two second rotational connection points 903, respectively. This allows the two second rotational connection points 903 to slide more smoothly relative to the rail. In this embodiment, the two sliders 906 are slidably engaged with the rail 901 and are configured to prevent them from separating from the rail 901.

[0120] The other technical solutions of this embodiment are the same as those of the above-mentioned embodiment 1 and will not be described in detail in this embodiment.

[0121] In the description of the embodiments of the present application, it should be noted that in the description of the present application, terms such as "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.

[0122] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0123] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A lifting work table, characterized in that: include Work platform; A base that sits on an existing tabletop or countertop; as well as A lifting assembly connected to the working platform and the base for adjusting the height of the working platform relative to the base, the lifting assembly comprising at least one set of lifting arms, each set of lifting arms comprising at least two arms hinged in the middle: a first arm and a second arm, and the first end of the first arm and the first end of the second arm are respectively slidably connected to the working platform, and the second end of the first arm and the second end of the second arm are respectively slidably connected to the base; A synchronization component is provided between the first end of the first support arm and the first end of the second support arm of each group of the lifting arms, and the synchronization component is used to make the first end of the first support arm and the first end of the second support arm move toward each other or move away from each other synchronously; And / or a synchronization component is arranged between the second end of the first arm and the second end of the second arm of each group of the lifting arms, and the synchronization component is used to make the second end of the first arm and the second end of the second arm move toward each other or move away from each other synchronously.

2. The lifting work table according to claim 1, characterized in that: The synchronization assembly includes a first sliding member, a second sliding member and a synchronization gear, the first sliding member and the second sliding member move toward or away from each other along the length direction, and the first sliding member is provided with a first tooth portion along the length direction, and the second sliding member is provided with a second tooth portion along the length direction; the synchronization gear is located between the first sliding member and the second sliding member and is respectively meshed with the first tooth portion and the second tooth portion; the synchronization gear is rotatably connected to the working platform, and the first sliding member and the second sliding member are respectively connected to the first end of the first branch arm and the first end of the second branch arm of each group of the lifting arms; and / or the synchronization gear is rotatably connected to the base, and the first sliding member and the second sliding member are respectively connected to the second end of the first branch arm and the second end of the second branch arm of each group of the lifting arms.

3. The lifting work table according to claim 2, characterized in that: The first end of the first arm and the first end of the second arm of each group of lifting arms are respectively connected to a first sliding rod slidably connected to the working platform, and the second end of the first arm and the second end of the second arm of each group of lifting arms are respectively connected to a second sliding rod slidably connected to the base; the first sliding member and the second sliding member of the synchronization component are respectively connected to two first sliding rods, and / or the first sliding member and the second sliding member of the synchronization component are respectively connected to two second sliding rods.

4. The lifting work table according to claim 3, characterized in that: The outer ends of the first sliding member and the second sliding member are respectively formed with connecting seats, and the two connecting seats are respectively rotatably connected and axially limited on the two first sliding rods, and / or the two connecting seats are respectively rotatably connected and axially limited on the two second sliding rods.

5. The lifting work table according to claim 2, characterized in that: The synchronization component also includes a base connected to the working platform and / or the base, the synchronization gear is rotatably connected in the base, and the base is provided with two guide holes respectively located on both sides of the synchronization gear and for the first sliding member and the second sliding member to pass through respectively.

6. The lifting work table according to claim 1, characterized in that: The synchronization component includes a first traction arm, a second traction arm and a rotating arm, and the two ends of the rotating arm are respectively rotatably connected to the first traction arm and the second traction arm, so as to make the first traction arm and the second traction arm be folded toward the center or unfolded toward both sides at the same time; the rotating arm is rotatably connected to the working platform, and the first traction arm and the second traction arm are respectively connected to the first end of the first support arm and the first end of the second support arm of each group of the lifting arms; and / or the rotating arm is rotatably connected to the base, and the first traction arm and the second traction arm are respectively connected to the second end of the first support arm and the second end of the second support arm of each group of the lifting arms.

7. The lifting work table according to claim 6, characterized in that: The first end of the first support arm and the first end of the second support arm of each group of the lifting arms are respectively connected to a first sliding rod slidably connected to the working platform, and the second end of the first support arm and the second end of the second support arm of each group of the lifting arms are respectively connected to a second sliding rod slidably connected to the base; the first traction arm and the second traction arm of the synchronization assembly are respectively rotatably connected to the two first sliding rods; And / or the first traction arm and the second traction arm of the synchronization assembly are respectively rotatably connected to the two second sliding rods.

8. The lifting work table according to claim 1, characterized in that: The synchronization assembly includes a first screw rod, a second screw rod and a support, the axes of the first screw rod and the second screw rod are arranged in parallel and move toward or away from each other along the axial direction; a first rotating block threadedly connected to the first screw rod and a second rotating block threadedly connected to the second screw rod are rotatably connected to the support, the first screw rod and the second screw rod are respectively connected to the first end of the first support arm and the first end of the second support arm of each group of the lifting arms, and / or the first screw rod and the second screw rod are respectively connected to the second end of the first support arm and the second end of the second support arm of each group of the lifting arms.

9. The lifting work table according to claim 8, characterized in that: The first end of the first support arm and the first end of the second support arm of each group of the lifting arms are respectively connected to a first sliding rod slidably connected to the working platform, and the second end of the first support arm and the second end of the second support arm of each group of the lifting arms are respectively connected to a second sliding rod slidably connected to the base; the first screw rod and the second screw rod of the synchronization assembly are respectively rotatably connected to the two first sliding rods; And / or the first screw rod and the second screw rod of the synchronization assembly are respectively rotatably connected to the two second sliding rods.

10. The lifting work table according to claim 8, characterized in that: Two fixed seats are connected to the support, and through holes are provided on the two fixed seats, and the first rotating block and the second rotating block are respectively connected to the two through holes; the thread directions of the first screw rod and the second screw rod are set to be opposite and the rotation speeds of the first rotating block and the second rotating block are set to be the same.

11. The lifting work table according to claim 1, characterized in that: The synchronization component includes a parallelogram rotation structure and a track, the length direction of the track is perpendicular to the sliding direction of the end of the support arm, the parallelogram rotation structure has two relative first rotation connection points and two relative second rotation connection points, and the two second rotation connection points are respectively slidably connected to the track; the track is connected to the working platform, and the two first rotation connection points are respectively connected to the first end of the first support arm and the first end of the second support arm of each group of the lifting arms; and / or the track is connected to the base, and the two first rotation connection points are respectively connected to the second end of the first support arm and the second end of the second support arm of each group of the lifting arms.

12. The lifting work table according to claim 11, characterized in that: The first end of the first support arm and the first end of the second support arm of each group of the lifting arms are respectively connected to a first sliding rod slidably connected to the working platform, and the second end of the first support arm and the second end of the second support arm of each group of the lifting arms are respectively connected to a second sliding rod slidably connected to the base; the two first rotating connection points of the synchronization component are respectively rotationally connected to the two first sliding rods; and / or the two first rotating connection points of the synchronization component are respectively rotationally connected to the two second sliding rods.

13. The lifting work table according to claim 11, characterized in that: The parallelogram rotation structure comprises four connecting rods which are connected end to end in rotation in sequence and form a parallelogram.

14. The lifting work table according to claim 12, characterized in that: The two first rotation connection points are rotationally connected with connection blocks respectively, the two connection blocks are rotationally connected and axially limited on the two first sliding rods respectively, and / or the two connection blocks are rotationally connected and axially limited on the two second sliding rods respectively.

15. The lifting work table according to claim 11, characterized in that: Two sliders are slidably matched on the track, and the two sliders are rotatably connected to the two second rotation connection points respectively.

16. The lifting work table according to claim 2, 6, 8 or 11, characterized in that: There are two synchronization components, and the two synchronization components are respectively arranged on the working platform and the base.

17. The liftable work table according to claim 1, characterized in that: The lifting assembly includes two groups of lifting arms, one group of the lifting arms includes a first arm and a second arm, and the first arm and the second arm are hinged; the other group of the lifting arms includes a third arm and the second arm, the second arm and the third arm are hinged, the first end of the first arm, the first end of the second arm and the first end of the third arm are respectively slidably connected to the working platform, and the second end of the first arm, the second end of the second arm and the second end of the third arm are respectively slidably connected to the base.

18. The liftable work table according to claim 1, characterized in that: The lifting work table also includes a power element, which is used to provide lifting force for the work platform to rise.

19. The lifting work table according to claim 18, characterized in that: The power element is a gas spring or a spring.

20. The lifting work table according to claim 18, characterized in that: The power element is an electric push rod or a linear motor.

21. The liftable work table according to claim 18, characterized in that: The tabletop lifting work table further comprises a locking mechanism, wherein the locking mechanism comprises a wrench connected to the work platform, and the wrench is connected to the control switch of the power element via a brake line.

22. The lifting work table according to claim 1, characterized in that: A keyboard tray is connected to a side of the work platform close to the user.

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