Electric lifting worktable

Abstract

The utility model discloses an electric lifting working table which comprises a working platform, a base, a lifting assembly and an electric driving assembly, the lifting assembly comprises at least two sets of lifting arms, and each set of lifting arms comprises two supporting arms with the middles hinged to form an X shape; at least one synchronous assembly is arranged between the two groups of lifting arms; the synchronous assembly consists of a first pull rod, a second pull rod, a parallelogram rotating structure and a track; the first pull rod is connected with the first ends of the first supporting arms of the two sets of lifting arms, and the second pull rod is connected with the first ends of the second supporting arms of the two sets of lifting arms. The electric driving assembly is used for enabling the first pull rod and the second pull rod to move face to face or back to back at the same time so as to adjust the height of the working platform. According to the electric lifting worktable, the lifting assembly is good in structural stability, high in supporting capacity, good in stability during height adjustment, not prone to shaking and good in user experience feeling.

Description

Technical Field

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

[0002] With the continuous development of society, flat panel displays, tablet computers, etc. are becoming more and more popular in ordinary households, and the corresponding brackets have emerged. The lifting work table for carrying tablet computers in the related technology, also known as lifting workbench, or desktop computer bracket, etc., is generally placed on the desktop or tabletop, and can be raised and lowered to adjust the height when in use to meet the needs of users for healthy working methods such as standing office or alternating between standing and sitting.

[0003] The lifting work table of the related technology, such as the lifting workbench disclosed in the patent application with announcement number CN117481456A previously applied by the applicant of this case, has a structure including a work platform, a base, and at least one group of lifting arms, each group of lifting arms including at least two support arms hinged in the middle to form an X-shape; the upper ends of the two support arms are respectively provided with first sliding members slidably connected to the work platform, and the lower ends of the two support arms are respectively provided with second sliding members slidably connected to the base; a first synchronization component located at the bottom of the work platform and protruding downward is connected between the two first sliding members, and a second synchronization component located on the base is connected between the two second sliding members; the synchronization component enables the other two relative rotation connection points to move synchronously through the sliding cooperation of the two relative rotation connection points of the parallelogram rotation structure with the track, thereby synchronizing the movement between the two first sliding members and between the two second sliding members.

[0004] During actual use, the inventor discovered that the lifting work table of the above-mentioned related technology has the following defects: the lifting work table of the related technology has poor structural stability of the lifting component, resulting in poor supporting capacity, especially when the working platform is at the highest position, it is easy to shake; furthermore, the minimum distance between the upper ends of the two arms of the lifting arm or the lower ends of the two arms is set relatively large, so that the span of the synchronization component is large, and the coordination stability between the synchronization component and the ends of the two arms is relatively poor, resulting in shaking and frustration of the working platform when the height is adjusted, and the user experience is poor. Utility Model Content

[0005] The technical problem to be solved by the present application is to overcome the defects of the above-mentioned related technologies and provide an electric lifting work table with good structural stability and strong supporting capacity of the lifting component, good stability during height adjustment, not easy to shake and good user experience.

[0006] The technical solution of the present application is to provide an electric lifting work table having the following structure:

[0007] Work platform;

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

[0009] 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 two sets of lifting arms, each set of lifting arms comprising two arms hinged in the middle in an X shape: 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;

[0010] At least one synchronization component, the synchronization component includes a first pull rod, a second pull rod, a parallelogram rotation structure and a track connected to the working platform or the base, and 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; the two first rotation connection points are respectively connected to the first pull rod and the second pull rod, and the two second rotation connection points are respectively slidably connected to the track; the first pull rod is respectively connected to the first end of the first support arm of the two groups of lifting arms, and the second pull rod is respectively connected to the first end of the second support arm of the two groups of lifting arms; or the first pull rod is respectively connected to the second end of the first support arm of the two groups of lifting arms, and the second pull rod is respectively connected to the second end of the second support arm of the two groups of lifting arms;

[0011] An electric drive assembly is connected to the working platform or the base, and the electric drive assembly is transmission-connected to the parallelogram rotating structure, and is used to drive the parallelogram rotating structure to rotate so that the first pull rod and the second pull rod move toward or away from each other at the same time.

[0012] In some embodiments, the electric drive assembly includes a drive motor and a lead screw connected in the track, the drive motor is transmission-connected to the lead screw, and the lead screw is threadedly connected to two sliding members that can approach toward or move away from each other when the lead screw rotates; the two sliding members are respectively connected to the two second rotation connection points.

[0013] In some embodiments, a hollow support tube is connected to the work platform or the base, the inner hole of the support tube forms the track, and the two sliding members are slidably fitted in the inner hole of the support tube; the support tube is provided with a guide hole connected to the inner hole of the support tube along the length direction, and the connecting pin between the second rotating connection point and the sliding member is slidably fitted in the guide hole.

[0014] In some embodiments, there are two synchronization components: a first synchronization component and a second synchronization component, and the first synchronization component and the second synchronization component are respectively arranged on the working platform and the base; the first pull rod of the first synchronization component is respectively connected to the first end of the first support arm of the two groups of lifting arms, and the second pull rod is respectively connected to the first end of the second support arm of the two groups of lifting arms; the first pull rod of the second synchronization component is respectively connected to the second end of the first support arm of the two groups of lifting arms, and the second pull rod is respectively connected to the second end of the second support arm of the two groups of lifting arms; the electric drive component is connected to the working platform, and the two sliding parts on the screw are respectively connected to the two second rotating connection points of the first synchronization component.

[0015] In some embodiments, the parallelogram rotation structure includes four connecting rods that are sequentially connected end to end and rotate to form a parallelogram.

[0016] In some embodiments, a first slide groove is provided on the working platform, and 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 slider that slides in the first slide groove; a second slide groove is provided on the base, 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 slider that slides in the second slide groove.

[0017] In some embodiments, the first sliding block and the second sliding block are both provided with guide ribs protruding outward and extending along the sliding direction, and the guide ribs are respectively fitted with the inner peripheral wall of the sliding groove.

[0018] In some embodiments, a keyboard tray is detachably connected to a side of the work platform close to the user.

[0019] In summary, compared with the related art, the electric lifting work table of the present application has the following advantages: the electric lifting work table is provided with at least one synchronization component, which includes a first pull rod, a second pull rod, a parallelogram rotation structure and a track connected to the work platform or the base; the two first rotation connection points of the parallelogram rotation structure are respectively connected to the first pull rod and the second pull rod, and the electric drive component of the electric lifting work table drives the parallelogram rotation structure to rotate so that the first pull rod and the second pull rod move toward or away from each other at the same time, so that the first end of the first branch arm and the first end of the second branch arm of each group of lifting arms keep moving toward or away from each other at the same time, or the second end of the first branch arm and the second end of the second arm of each group of lifting arms keep moving toward or away from each other at the same time; the setting of the synchronization component not only makes the lifting between the two groups of lifting arms always synchronized, but also the first pull rod and the second pull rod of the synchronization component are connected to the two groups of lifting arms, so that the structural stability between the two groups of lifting arms is better and the supporting capacity is strong; even when the work platform is at the highest position, it is not easy to shake. In addition, with the joint support of the two groups of lifting arms, not only can the supporting capacity of the working platform meet the requirements, but also the minimum distance between the first end of the first arm and the first end of the second arm of each group of lifting arms, or between the second end of the first arm and the second end of the second arm, can be set smaller, thereby making the span of the synchronization component small and the coordination stability between the synchronization component and the arm end good, which can effectively avoid shaking or stuttering of the working platform when adjusting the height, and provide a good user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an electric lifting work table according to some embodiments of the present application.

[0021] Figure 2 It is a schematic diagram of the back structure of an electric lifting work table according to some embodiments of the present application.

[0022] Figure 3 It is a schematic diagram of the bottom structure of an electric lifting work table according to some embodiments of the present application.

[0023] Figure 4 It is a schematic cross-sectional structure diagram of an electric lift work table according to some embodiments of the present application.

[0024] Figure 5 It is a front schematic diagram of a synchronization component of an electric lifting work table according to some embodiments of the present application.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of a synchronization component of an electric lifting work table according to some embodiments of the present application.

[0026] Figure 7This is a schematic diagram of the bottom of a working platform of an electric lifting work table according to some embodiments of the present application.

[0027] Figure 8 It is a schematic cross-sectional view of a working platform of an electric lifting work table according to some embodiments of the present application.

[0028] Fig. 9 This is a schematic diagram of a folded state of an electric lift work table according to some embodiments of the present application.

[0029] Fig.10 It is a side schematic diagram of a folded state of an electric lifting work table according to some embodiments of the present application.

[0030] Description of reference numerals:

[0031] 1. working platform, 100, first slide groove, 2. base, 200, second slide groove, 3. lifting assembly, 300, lifting arm, 301, first support arm, 302, second support arm, 303, fixing rod, 304, first slider, 305, second slider, 306, guide rib, 4. keyboard tray, 5. electric drive assembly, 500, drive motor, 501, lead screw, 502, sliding member, 503, connecting pin, 6. synchronization assembly, 600, first rotating connection point, 601, second rotating connection point, 602, track, 603, connecting rod, 604, hinged seat, 605, support tube, 606, guide hole, 607, first pull rod, 608, second pull rod. DETAILED DESCRIPTION

[0032] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0033] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0034] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a 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 higher in level than the second feature. A first feature being "below", "below" or "below" a 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 lower in level than the second feature.

[0035] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] See also Figure 1 to Figure 7 As shown, an embodiment of the present application discloses an electric lift work table, which is also called a desktop workbench, a desktop lift table, etc. Its structure includes a work platform 1, a base 2 and a lifting component 3 connecting the work platform 1 and the base 2 for adjusting the height of the work platform 1 relative to the base 2; the work platform 1 is also called a table top, an upper platform, a storage panel, etc., the base 2 is also called a base, a lower platform, a chassis, etc., and the base 2 is placed on a desktop or table top in the prior art.

[0037] In this embodiment, if Figure 1 , Figure 2 and Figure 3 As shown, the lifting assembly 3 includes two groups of lifting arms 300, and each group of lifting arms 300 includes two arms hinged in the middle to form an X shape: a first arm 301 and a second arm 302, that is, the first arm 301 and the second arm 302 are crossed in the middle to form an X shape, and the crossing part is rotatably connected by a rotating shaft, and the first end of the first arm 301 and the first end of the second arm 302 are respectively slidably connected to the working platform 1, and the second end of the first arm 301 and the second end of the second arm 302 are respectively slidably connected to the base 2.

[0038] For example, two hollow metal square tubes are connected to the bottom of the working platform 1, and a support tube is connected between the two metal square tubes. The two hollow metal square tubes are respectively arranged corresponding to the two groups of lifting arms 300, and the inner holes of the metal square tubes form a first slide groove 100. The first end of the first arm 301 and the first end of the second arm 302 of each group of lifting arms 300 are respectively connected to a first slider 304 that slides in the first slide groove 100; similarly, the base 2 has two parallel square metal tubes, and a support tube is connected between the two square metal tubes. The inner holes of the square metal tubes form a second slide groove 200, and the second end of the first arm 301 and the second end of the second arm 302 of each group of lifting arms 300 are respectively connected to a second slider 305 that slides in the second slide groove 200.

[0039] It can be understood that the first support arm 301 or the second support arm 302 is a rod or plate with a certain length, having two ends, namely a first end and a second end relative to the first end; specifically in this embodiment, the first end, namely the upper end, is located at the end of the support arm close to the working platform, and the second end, namely the lower end, is located at the end of the support arm close to the base.

[0040] It is not difficult to understand that when the height of the working platform 1 is adjusted relative to the base 2, the first arm 301 and the second arm 302 of the lifting arm perform scissor difference motion or shear motion around the rotation axis in the middle thereof, and the two first sliders 304 connected to the first end of the first arm 301 and the first end of the second arm 302 move toward each other or move away from each other in the first slide groove 100 at the same time, and at the same time, the two second sliders 305 connected to the second end of the first arm 301 and the second end of the second arm 302 move toward each other or move away from each other in the second slide groove 200 at the same time; therefore, within the entire height adjustment range of the electric lifting work table, the support center of gravity of the lifting component 3 and the center of gravity of the load of the working platform 1 remain relatively unchanged, or the support center of gravity of the lifting component 3 is always maintained on the same vertical line as the load center of gravity of the working platform 1, or the support center of gravity of the lifting component 3 coincides with the load center of gravity of the working platform 1 and will not shift relatively, so that the lifting work table has good support stability, strong load-bearing capacity, and avoids rollover, with high safety.

[0041] For example, Figure 1 and Figure 4 As shown, at this time, the working platform 1 is at the highest position relative to the base 2, and the supporting center of gravity of the lifting assembly 3 and the center of gravity of the load of the working platform 1 are maintained on the vertical center line of the working platform 1; Fig. 9 and Fig.10 As shown, the working platform 1 is in a folded state relative to the base 2 , while the supporting center of gravity of the lifting assembly 3 and the center of gravity of the load of the working platform 1 are still maintained on the vertical center line of the working platform 1 .

[0042] In some embodiments, in order to make the first slider 304 and the second slider 305 at the end of the arm slide more smoothly in the slide groove, the first slider 304 and the second slider 305 are provided with a guide rib 306 protruding outward and extending along the sliding direction. Figure 3 As shown, the guide ribs 306 are respectively fitted with the inner peripheral wall of the slide groove, which can ensure that the first slider 304 and the second slider 305 will not shake laterally along the slide groove when sliding in the slide groove.

[0043] Furthermore, in the present embodiment, the lifting arms 300 of the lifting assembly 3 are divided into two groups, and the two groups of lifting arms 300 are respectively arranged on both sides of the bottom of the working platform 1, and are symmetrically arranged; in other embodiments, the lifting arms 300 of the lifting assembly 3 can also be arranged in three groups, four groups, etc., and are arranged in sequence along the length direction of the working platform 1.

[0044] It is understandable that when the two arms perform scissor difference motion, if the horizontal displacement and rotation angle of the upper ends of the two arms or / and the lower ends of the two arms are not synchronized or there is a movement lag, it is easy to cause the working platform 1 to tilt or the lifting and lowering is not smooth or stuck; in the embodiment of the present application, in order to avoid these defects, the lifting work table also includes at least one synchronization component 6, see Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the synchronization component 6 includes a first pull rod 607, a second pull rod 308, a parallelogram rotation structure and a track 602 connected to the work platform 1 or the base 2, and the length direction of the track 602 is perpendicular to the sliding direction of the end of the support arm; the parallelogram rotation structure has two relative first rotation connection points 600 and two relative second rotation connection points 601; the two first rotation connection points 600 are rotationally connected to the first pull rod 607 and the second pull rod 608 respectively, and the two second rotation connection points 601 are slidingly connected to the track 602 respectively; because the two second rotation connection points 601 are limited to sliding along the length direction of the track 602, when the two second rotation connection points 601 move toward or away from each other, the two first rotation connection points 600 are linked to move away from or toward each other, so that the first pull rod 607 and the second pull rod 608 move away from or toward each other at the same time, that is, the synchronization component keeps the first pull rod 607 and the second pull rod 608 moving toward or away from each other synchronously.

[0045] In this embodiment, the parallelogram rotation structure includes four connecting rods 603 that are rotationally connected end to end in sequence and form a parallelogram. The four connecting rods 603 are rotationally connected through four rotating shafts, and the rotating shafts at two vertices respectively form two first rotating connection points 600 and two second rotating connection points 601. That is, the first rotating connection point 600 and the second rotating connection point 601 both refer to the rotating vertices of the parallelogram rotation structure, which can be rotating vertices or hinge points formed by rotating shafts, hinge pins, rotating joints, etc.

[0046] Further, in this embodiment, the first pull rod 607 is respectively connected to the first ends of the two first support arms 301 of the two groups of lifting arms, and the second pull rod 608 is respectively connected to the first ends of the two second support arms 302 of the two groups of lifting arms; or the first pull rod 607 is respectively connected to the second ends of the two first support arms 301 of the two groups of lifting arms, and the second pull rod 608 is respectively connected to the second ends of the two second support arms 302 of the two groups of lifting arms.

[0047] For example, Figure 2 and Figure 3 As shown, when the track 602 of the synchronization component 6 is connected to the bottom of the working platform 1, the synchronization component 6 is set on the working platform 1, and the first end and the second end of the first pull rod 607 are respectively connected to the first ends of the two first support arms 301 of the two groups of lifting arms 300, and the first end and the second end of the second pull rod 608 are respectively connected to the first ends of the two second support arms 302 of the two groups of lifting arms 300; when the track 602 of the synchronization component 6 is connected to the base 2, the synchronization component 6 is set on the base 2, and the first end and the second end of the first pull rod 607 are respectively connected to the second ends of the two first support arms 301 of the two groups of lifting arms 300, and the first end and the second end of the second pull rod 608 are respectively connected to the second ends of the two second support arms 302 of the two groups of lifting arms 300.

[0048] Further, the synchronization component 6 is installed on the working platform 1, specifically: a first track extending along the length direction of the support tube 605 is formed on the support tube 605 at the bottom of the working platform 1, the two second rotation connection points 601 of the parallelogram rotation structure are slidably fitted in the first track, the centers of the first pull rod 607 and the second pull rod 608 are respectively installed with hinge seats 604, and the two first rotation connection points 600 of the parallelogram rotation structure are respectively hinged to the two hinge seats 604. The synchronization component 6 is installed on the base 2, specifically: a second track extending along the length direction of the support tube 605 is formed on the support tube 605 of the base 2, the two second rotation connection points 601 of the parallelogram rotation structure are slidably fitted in the second track, the centers of the first pull rod 607 and the second pull rod 608 are respectively installed with hinge seats 604, and the two first rotation connection points 600 of the parallelogram rotation structure are respectively hinged to the two hinge seats 604.

[0049] Furthermore, the electric lifting work table also includes an electric drive component 5, which is connected to the work platform 1 or the base 2, and the electric drive component 5 is transmission connected to the parallelogram rotation structure, used to drive the parallelogram rotation structure to rotate so that the first pull rod 607 and the second pull rod 608 move toward each other or away from each other at the same time; in this embodiment, the electric drive component 5 is transmission connected to the two second rotation connection points 601, used to drive the two second rotation connection points 601 to move toward each other or away from each other at the same time along the track 602.

[0050] Furthermore, the electric drive assembly 5 includes a drive motor 500, a motor controller and a hand controller. The drive motor 500 is a DC motor. The drive motor 500 is electrically connected to the motor controller, and the motor controller is electrically connected to the hand controller. The hand controller is installed on the working platform 1 and is provided with an ascending button, a descending button, a switch, etc., for sending control instructions to the motor controller to control the action of the drive motor 500. The drive motor 500 is in transmission connection with the two second rotating connection points 601. After receiving the control instruction, it drives the synchronization assembly 6 to act, thereby driving the two second rotating connection points 601 to move synchronously toward each other or synchronously away from each other, and linking the two pull rods and the two arm ends of the lifting arm 300 to move synchronously toward each other or synchronously away from each other, so as to achieve the height adjustment of the working platform 1.

[0051] In this embodiment, the two first rotating connection points 600 of the synchronization component 6 are respectively connected to the first pull rod 607 and the second pull rod 608, and the electric drive component 5 of the electric lifting work table drives the parallelogram rotating structure to rotate so that the first pull rod 607 and the second pull rod 608 move toward or away from each other at the same time, so that the first end of the first arm 301 and the first end of the second arm 302 of each group of lifting arms 300 keep moving toward or away from each other at the same time, or the second end of the first arm 301 and the second end of the second arm 302 of each group of lifting arms 300 keep moving toward or away from each other at the same time; the setting of the synchronization component 6 not only makes the lifting between the two groups of lifting arms 300 always synchronized, but also the first pull rod 607 and the second pull rod 608 of the synchronization component 6 are connected to the two groups of lifting arms 300, so that the structural stability between the two groups of lifting arms 300 is better and the supporting capacity is strong; even when the working platform 1 is at the highest position, it is not easy to shake. In addition, with the joint support of the two groups of lifting arms 300, not only can the supporting capacity of the working platform 1 meet the requirements, but also the minimum distance between the first end of the first arm 301 and the first end of the second arm 302 of each group of lifting arms 300, or the second end of the first arm 301 and the second end of the second arm 302 can be set smaller, thereby reducing the span of the synchronization component 6 and improving the coordination stability between the synchronization component 6 and the arm end, effectively preventing the working platform 1 from shaking or stalling when adjusting its height, and providing a good user experience.

[0052] In the above embodiment, the span of the synchronization component 6 refers to the distance between the two first rotation connection points 600 when the first pull rod 607 and the second pull rod 608 move toward each other to the minimum distance; and the distance between the two first rotation connection points 600 when the first pull rod 607 and the second pull rod 608 move away from each other to the maximum distance; in other words, when the synchronization component 6 is at the minimum span, it is smaller than the minimum span of the synchronization component 6 of the related technology, and when the synchronization component 6 is at the maximum span, it is smaller than the maximum span of the synchronization component 6 of the related technology.

[0053] Further in this embodiment, in order to synchronize the movements between the first arm 301 and the second arm 302 of the two sets of lifting arms 300. Figure 3 As shown, there are two synchronization components 6: a first synchronization component and a second synchronization component, which are respectively arranged on the working platform 1 and the base 2; the first pull rod 607 of the first synchronization component is respectively connected to the first end of the first arm 301 of the two lifting arms 300, and the second pull rod 608 is respectively connected to the first end of the second arm 302 of the two lifting arms 300; the first pull rod 607 of the second synchronization component is respectively connected to the second end of the first arm 301 of the two lifting arms 300, and the second pull rod 608 is respectively connected to the second end of the second arm 302 of the two lifting arms 300. The electric drive component 5 is connected to the working platform 1 and is respectively connected to the two second rotation connection points of the first synchronization component.

[0054] In this embodiment, if Figure 3 , Figure 7 and Figure 8 As shown, the electric drive assembly 5 includes a drive motor 500 and a lead screw 501 connected in a track 602, the drive motor 500 is connected to the lead screw 501 in a transmission connection, and the lead screw 501 is threadedly connected with two sliding members 502 that can move toward or away from each other when the lead screw 501 rotates; the two sliding members 502 are respectively connected to the two second rotation connection points 601. Specifically in this embodiment, the lead screw 501 includes two coaxially arranged lead screw monomers with opposite thread directions, and the two sliding members 502 are respectively threadedly connected to the two lead screw monomers; the two sliding members 502 are slidably matched in the inner hole of the support tube 605; the support tube 605 is provided with a guide hole 606 connected to the inner hole of the support tube 605 along the length direction, and the connecting pin 503 between the second rotation connection point 601 and the sliding member 502 is slidably matched in the guide hole 606. When the drive motor 500 drives the lead screw 501 to rotate, the two sliding members 502 on the lead screw 501 move toward or away from each other at the same time. In this way, the two second rotation connection points 601 of the synchronization component 6 can be driven to move toward each other or move away from each other at the same time.

[0055] For example, when the working platform 1 rises relative to the base 2, the electric drive assembly 5 drives the two second rotating connection points 601 to move in opposite directions, so that the two first rotating connection points 600 move in opposite directions at the same time, and the two first pull rods 303 move in opposite directions at the same time, so that the two arm ends of each set of lifting arms 300 move in opposite directions at the same time, and the working platform 1 is in an ascending state relative to the base 2; when the working platform 1 descends relative to the base 2, the electric drive assembly 5 drives the two second rotating connection points 601 to move in opposite directions, so that the two first rotating connection points 600 move in opposite directions at the same time and move away from each other, and the two first pull rods 303 move in opposite directions at the same time, so that the two arm ends of each set of lifting arms 300 move in opposite directions at the same time, and the working platform 1 is in a descending state relative to the base 2. Therefore, the setting of the two synchronization assemblies 6 ensures that the working platform 1 will not tilt during the ascending or descending process and always maintains a horizontal state.

[0056] In other embodiments, two electric push rods may be provided to drive the two second rotating connection points 601 to move toward each other or away from each other at the same time. That is, the driving ends of the two electric push rods are respectively connected to the two second rotating connection points 601 to drive the two second rotating connection points 601 to move toward each other or away from each other at the same time.

[0057] In some embodiments, Figure 1 and Figure 3 As shown, in order to facilitate the placement of the keyboard, a keyboard tray 4 is detachably connected to the side of the work platform 1 close to the user, and a support pad is connected to the bottom of the keyboard tray 4. When the work platform 1 is at the lowest position, the bottom plane of the support pad is at the same horizontal height as the bottom plane of the base 2. In this way, when the work platform 1 is at the lowest position, the support pad at the bottom of the keyboard tray 4 contacts the ground or the table top, which makes the electric lifting work table more stable when standing.

[0058] 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 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.

[0059] 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" etc. 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 may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0060] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An electric 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 two sets of lifting arms, each set of lifting arms comprising two arms hinged in the middle in an X shape: 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; At least one synchronization component, the synchronization component includes a first pull rod, a second pull rod, a parallelogram rotation structure and a track connected to the working platform or the base, and 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; the two first rotation connection points are respectively connected to the first pull rod and the second pull rod, and the two second rotation connection points are respectively slidably connected to the track; the first pull rod is respectively connected to the first end of the first support arm of the two groups of lifting arms, and the second pull rod is respectively connected to the first end of the second support arm of the two groups of lifting arms; or the first pull rod is respectively connected to the second end of the first support arm of the two groups of lifting arms, and the second pull rod is respectively connected to the second end of the second support arm of the two groups of lifting arms; An electric drive assembly is connected to the working platform or the base, and the electric drive assembly is transmission-connected to the parallelogram rotating structure, and is used to drive the parallelogram rotating structure to rotate so that the first pull rod and the second pull rod move toward or away from each other at the same time.

2. The electric lifting work table according to claim 1, characterized in that: The electric drive assembly includes a drive motor and a lead screw connected in the track, the drive motor is transmission-connected to the lead screw, and the lead screw is threadedly connected to two sliding members that can move toward each other or away from each other when the lead screw rotates; the two sliding members are respectively connected to the two second rotation connection points.

3. The electric lifting work table according to claim 2, characterized in that: A hollow support tube is connected to the working platform or the base, the inner hole of the support tube forms the track, and the two sliding members are slidably fitted in the inner hole of the support tube; the support tube is provided with a guide hole connected to the inner hole of the support tube along the length direction, and the connecting pin between the second rotating connection point and the sliding member is slidably fitted in the guide hole.

4. The electric lifting work table according to claim 2, characterized in that: There are two synchronization components: a first synchronization component and a second synchronization component, and the first synchronization component and the second synchronization component are respectively arranged on the working platform and the base; the first pull rod of the first synchronization component is respectively connected to the first end of the first support arm of the two groups of lifting arms, and the second pull rod is respectively connected to the first end of the second support arm of the two groups of lifting arms; the first pull rod of the second synchronization component is respectively connected to the second end of the first support arm of the two groups of lifting arms, and the second pull rod is respectively connected to the second end of the second support arm of the two groups of lifting arms; the electric drive component is connected to the working platform, and the two sliding parts on the lead screw are respectively connected to the two second rotating connection points of the first synchronization component.

5. The electric lifting work table according to claim 1, 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.

6. The electric lifting work table according to claim 1, characterized in that: A first slide groove is provided on the working platform, and 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 slider slidably fitted in the first slide groove; a second slide groove is provided on the base, 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 slider slidably fitted in the second slide groove.

7. The electric lifting work table according to claim 6, characterized in that: The first sliding block and the second sliding block are both provided with guide convex ribs protruding outward and extending along the sliding direction, and the guide convex ribs are respectively fitted with the inner peripheral wall of the sliding groove.

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

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