A desktop lifting worktable with a synchronous lifting structure

Abstract

This invention discloses a desktop lifting workbench with a synchronized lifting structure. It includes a work platform, a base, and a lifting assembly. The lifting assembly includes at least two sets of lifting supports, each set comprising two arms: a first arm and a second arm. The upper end of the first arm is rotatably connected to a first connection point on the work platform, and the lower end of the second arm is rotatably connected to a second connection point on the base. The lower end of the first arm and the upper end of the second arm are rotatably connected via an intermediate connection point. The workbench also includes a synchronization structure and a power element. The synchronization structure ensures that the two sets of lifting supports rotate synchronously at all times. The power element provides the lift force for the work platform to rise. During lifting, the center of gravity of the lifting assembly remains relatively constant compared to the center of gravity of the work platform load, preventing tipping, providing good stability, and allowing for a large lifting stroke.

Description

Technical Field

[0001] This application relates to the field of computer support equipment technology, specifically a desktop lifting worktable with a synchronous lifting structure. Background Technology

[0002] With the continuous development of society, flat panel monitors and tablet computers are becoming increasingly common in ordinary households, and corresponding stands have emerged. Desktop workbenches used to support tablet computers, also known as height-adjustable workbenches, height-adjustable desks, or desktop computer stands, are typically placed on a desktop or tabletop and can be adjusted in height to meet the needs of users who prefer a healthy work style, such as standing or alternating between standing and sitting.

[0003] The related lifting platform, such as the applicant's earlier patent application CN206630226U entitled "Lifting Platform," discloses a lifting platform structure including a base, a work platform, and an X-shaped lifting assembly disposed between the base and the work platform. The lifting assembly includes two X-shaped support rods hinged at the center: 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 is slidably fitted onto 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 is slidably fitted onto the work platform. The lifting platform also includes a power element, typically a gas spring. One end of the gas spring is connected to the work platform, and the other end is connected to the lifting assembly. The gas spring provides lift for the work platform and counteracts or partially counteracts the load on the work platform. This related lifting platform uses a brake cable and a wrench connected to the work platform to control the gas spring's movement, thus making the work platform height adjustable.

[0004] During actual use, the inventors discovered the following defects in the desktop lifting worktables of the aforementioned related technologies: The first and second support rods of the lifting assembly of these desktop lifting worktables are hinged at the middle 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 simultaneously slide to one side of the lifting worktable. This causes the center of gravity of the lifting assembly to deviate from the center of gravity of the work platform's load, easily leading to tipping over and posing a safety hazard. Furthermore, the lifting stroke of these desktop lifting worktables is generally small, failing to meet the needs of users for floor-standing use. 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 desktop lifting worktable with a lifting synchronization structure in which the center of gravity of the lifting component and the center of gravity of the work platform load remain relatively unchanged during lifting, thus avoiding tipping over, providing good support stability, and having a large lifting stroke.

[0006] The technical solution of this application is to provide a desktop lifting worktable with a synchronous lifting structure having the following structure: it includes...

[0007] Work platform;

[0008] A base that can be placed on an existing desktop or tabletop; and

[0009] A lifting assembly connecting the work platform and the base for adjusting the height of the work platform relative to the base includes at least two sets of lifting brackets, each set of lifting brackets including two arms: a first arm and a second arm. The upper end of the first arm is rotatably connected to a first connection point on the work platform, and the lower end of the second arm is rotatably connected to a second connection point on the base. The lower end of the first arm and the upper end of the second arm are rotatably connected via an intermediate connection point. When the work platform is raised or lowered relative to the base, the intermediate connection point gradually moves closer to or further away from the line connecting the first connection point and the second connection point.

[0010] The synchronous structure includes at least one set of synchronous components. Each set of synchronous components includes a lead screw and a base respectively connected to two sets of lifting brackets. A rotatable rotating component is axially limited in the base, and the lead screw is threadedly connected to the rotating component. When the working platform is raised or lowered relative to the base, the lead screw moves along the axial direction of the rotating component to keep the two sets of lifting brackets rotating synchronously at all times.

[0011] A power element, connected between the work platform and the base, is used to provide lift for the work platform to rise.

[0012] In some embodiments, the two sets of lifting brackets are symmetrically arranged on both sides of the bottom of the working platform, and when the working platform is raised or lowered relative to the base, the middle connection points of the two sets of lifting brackets simultaneously move closer to each other or move further away from each other.

[0013] In some embodiments, the vertical projection of the first connection point on the working platform onto the horizontal plane corresponds to and coincides with the vertical projection of the second connection point on the base onto the horizontal plane. Furthermore, when the working platform rises to its maximum stroke, the vertical projections of the intermediate connection points of the two sets of lifting brackets onto the horizontal plane do not coincide with the vertical projections of the first connection point and the second connection point.

[0014] In some embodiments, the two first arms and two second arms of the two sets of lifting brackets are symmetrically arranged about the horizontal plane where the intermediate connection point is located.

[0015] In some embodiments, the synchronization structure includes two sets of synchronization components, which are arranged in parallel and are respectively connected to two first arms and two second arms of the two sets of lifting brackets.

[0016] In some embodiments, the two sets of synchronization components include a first synchronization component and a second synchronization component. A first crossbar is connected to each of the two first arms, and the lead screw and base of the first synchronization component are rotatably connected to the first crossbars of the two first arms, respectively. A second crossbar is connected to each of the two second arms, and the lead screw and base of the second synchronization component are rotatably connected to the second crossbars of the two second arms, respectively.

[0017] In some embodiments, the power element is a gas spring, one end of which is rotatably connected to the work platform or base, and the other end is rotatably connected to the lifting assembly; or one end of the power element is connected to the work platform and the other end is connected to the base; or one end of the power element is rotatably connected to the first support arm and the other end is rotatably connected to the second support arm; or both ends of the power element are rotatably connected to two sets of lifting brackets respectively.

[0018] In some embodiments, a mounting base is connected to the base, the mounting base has a through hole for the lead screw to pass through, the rotating member is axially limited in the through hole, and the rotating member is connected to the through hole through a bearing.

[0019] In some embodiments, the desktop lifting worktable further includes a locking mechanism, which includes a wrench connected to the worktable and connected to a control switch of the power element via a brake cable.

[0020] In some embodiments, a keyboard tray is connected to the side of the work platform closest to the user, and when the work platform is in its lowest position, the bottom plane of the keyboard tray is at the same horizontal level as the bottom plane of the base.

[0021] In summary, compared with related technologies, the desktop lifting worktable with a synchronous lifting structure of this application has the following advantages: First, at least two sets of lifting brackets are provided between the work platform and the base of the desktop lifting worktable with a synchronous lifting structure. Each set of lifting brackets includes a first arm and a second arm arranged from top to bottom and rotatably connected through a middle connection point. The upper end of the first arm is rotatably connected to the first connection point on the work platform, and the lower end of the second arm is rotatably connected to the second connection point on the base. The first connection point and the second connection point are respectively fixed on the work platform and the base; therefore, when the work platform is raised or lowered, the first connection point... The support points of the lifting bracket remain unchanged relative to the working platform and the second connection point relative to the base. This ensures that the center of gravity of the lifting component and the center of gravity of the working platform load remain relatively constant during the lifting process, or that the center of gravity of the lifting component and the center of gravity of the working platform load are always on the same vertical line, or that the center of gravity of the lifting component and the center of gravity of the working platform load coincide without relative offset. This effectively avoids the defect of the center of gravity of the lifting component gradually deviating from the center of gravity of the working platform load during the lifting process, resulting in good support stability, preventing tipping, and high safety.

[0022] In addition, the synchronization structure utilizes the threaded engagement of the lead screw and the rotating component. When one set of lifting brackets drives the lead screw to move, the rotating component can rotate circumferentially. Conversely, limiting the rotation speed of the rotating component can limit the moving speed of the lead screw, thereby enabling the two sets of lifting brackets to maintain synchronous rotation. When the work platform is raised or lowered relative to the base, the traction or restriction of the synchronization structure can keep the two sets of lifting brackets rotating synchronously at all times. This not only ensures the smoothness of the work platform's raising and lowering but also ensures that the work platform will not tilt during the rising or falling process and will always remain in a horizontal state.

[0023] Furthermore, each lifting bracket of the desktop lifting workbench with a synchronous lifting structure consists of two arms distributed along the height direction of the desktop lifting workbench. Therefore, the lifting stroke of the desktop lifting workbench is large, which can meet the needs of different users and the need for the lifting workbench to be used on the ground. Attached Figure Description

[0024] Figure 1 This is a structural diagram of a desktop lifting worktable with a synchronous lifting structure according to some embodiments of this application.

[0025] Figure 2 This is another schematic diagram of a desktop lifting worktable with a lifting synchronization structure according to some embodiments of this application.

[0026] Figure 3 This is a side view of a desktop lifting worktable with a synchronous lifting structure according to some embodiments of this application.

[0027] Figure 4 This is a schematic diagram of the lifting assembly of a desktop lifting worktable with a lifting synchronization structure according to some embodiments of this application.

[0028] Figure 5 This is a schematic diagram of the synchronization component of a desktop lifting worktable with a lifting synchronization structure according to some embodiments of this application.

[0029] Figure 6 This is a schematic diagram of another embodiment of a desktop lifting workbench with a synchronous lifting structure according to some embodiments of this application.

[0030] Figure 7 This is a structural schematic diagram of another embodiment of a desktop lifting workbench with a lifting synchronization structure according to some embodiments of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Working platform; 100. First connection point; 2. Base; 200. Second connection point; 201. Pull rod; 3. Lifting bracket; 300. First support arm; 301. Second support arm; 302. Intermediate connection point; 303. First crossbar; 304. Second crossbar; 4. Synchronization assembly; 400. Lead screw; 401. Base; 402. Rotating component; 403. Mounting seat; 404. Bearing; 5. Power component; 6. Wrench. Detailed Implementation

[0033] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0034] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0035] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0037] See Figures 1-6 As shown in the figure, this application discloses a desktop lifting workbench with a lifting synchronization structure. The desktop lifting workbench is also called a desktop work table, desktop lifting table, etc. Its structure includes a work platform 1, a base 2, a power element 5, and a lifting assembly connecting the work platform 1 and the base 2 for adjusting the height of the work platform 1 relative to the base 2. The power element 5 is connected between the work platform 1 and the base 2 to provide the lifting force for the work platform 1 to rise and to offset or partially offset the load of the work platform 1. The work platform 1 is also called a tabletop, a storage panel, an upper platform, etc., and the base 2 is also called a base frame, a lower platform, etc. The base 2 is placed on a desktop or tabletop in the prior art.

[0038] In some embodiments, such as Figure 1 , Figure 2 and Figure 3 As shown, the lifting assembly connecting the work platform 1 and the base 2 for adjusting the height of the work platform 1 relative to the base 2 includes at least two sets of lifting brackets 3. Each set of lifting brackets 3 includes two arms: a first arm 300 and a second arm 301. The first arm 300 and the second arm 301 are distributed sequentially from top to bottom along the height direction of the lifting worktable. The upper end of the first arm 300 is rotatably connected to a first connection point 100 on the work platform 1, and the lower end of the second arm 301 is rotatably connected to a second connection point 200 on the base 2. The lower end of the first arm 300 and the upper end of the second arm 301 are rotatably connected through an intermediate connection point 302. When the work platform 1 is raised or lowered relative to the base 2, the intermediate connection point 302 gradually approaches or moves away from the connection line between the first connection point 100 and the second connection point 200. Each lifting bracket 3 of this desktop lifting worktable with a synchronous lifting structure is distributed with two arms along the height direction of the desktop lifting worktable. Therefore, the lifting stroke of this desktop lifting worktable is large, which can meet the needs of different users and the need for the lifting worktable to be used on the ground.

[0039] Specifically in this embodiment, see Figure 1 , Figure 2, Figure 3 and Figure 4 As shown, there are two sets of lifting brackets 3, connected to both sides of the bottom of the working platform 1. Two sets of first connection points 100 are provided on both sides of the bottom of the working platform 1, each set of first connection points 100 includes two hinge seats connected to the working platform 1. Two sets of second connection points 200 are provided on both sides of the base 2, each set of second connection points 200 includes two hinge seats connected to the base 2. That is, the hinge seats on the working platform 1 form the first connection points 100, and the hinge seats on the base 2 form the second connection points 200. The upper ends of the two sets of lifting brackets 3 are rotatably connected to the two sets of first connection points 100 on both sides of the working platform 1, and the lower ends of the two sets of lifting brackets 3 are rotatably connected to the two sets of second connection points 200 on both sides of the base 2. The lower end of the first arm 300 of each set of lifting brackets 3 is rotatably connected to the upper end of the second arm 301 through an intermediate connection point 302, which is a hinge pin connecting the lower end of the first arm 300 and the upper end of the second arm 301. When the working platform 1 rises relative to the base 2, the two arms of the lifting bracket 3 rotate relative to each other, increasing the angle between them. At this time, the middle connection point 302 of the two sets of lifting brackets 3 moves in opposite directions. Conversely, when the working platform 1 falls relative to the base 2, the two arms of the lifting bracket 3 rotate relative to each other, decreasing the angle between them. At this time, the middle connection point 302 of the two sets of lifting brackets 3 moves towards each other.

[0040] In the above embodiment, two sets of lifting brackets 3 are provided between the work platform 1 and the base 2 of the desktop lifting workbench with a lifting synchronization structure. Each set of lifting brackets 3 includes a first arm 300 and a second arm 301 arranged from top to bottom and rotatably connected through a middle connection point 302. The upper end of the first arm 300 is rotatably connected to the first connection point 100 on the work platform 1, and the lower end of the second arm 301 is rotatably connected to the second connection point 200 on the base 2. The first connection point 100 and the second connection point 200 are respectively hinge seats fixed on the work platform 1 and the base 2. Therefore, when the work platform 1 is raised or lowered, the first connection point 100 is relative to the base 2. The working platform 1 and the second connection point 200 remain unchanged relative to the base 2, that is, the support points at both ends of the lifting bracket 3 remain unchanged. This ensures that during the lifting process, the center of gravity of the lifting component and the center of gravity of the load on the working platform 1 remain relatively unchanged, or the center of gravity of the lifting component and the center of gravity of the load on the working platform 1 are always on the same vertical line, or the center of gravity of the lifting component and the center of gravity of the load on the working platform 1 coincide without relative offset. Thus, during the lifting process, the lifting platform can effectively avoid the defect that the center of gravity of the lifting component gradually deviates from the center of gravity of the load on the working platform 1, making it stable, avoiding tipping over, and ensuring high safety.

[0041] Specifically, in this embodiment, two sets of lifting brackets 3 are symmetrically arranged on both sides of the bottom of the work platform 1, so that the work platform 1 remains horizontal when the lifting work platform is raised or lowered. Moreover, when the work platform 1 is raised or lowered relative to the base 2, the middle connection points 302 of the two sets of lifting brackets 3 simultaneously move towards each other or move away from each other. See Figure 3 As shown, the intermediate connection point 302 of the two sets of lifting brackets 3 is always located inside the desktop lifting worktable.

[0042] In the above embodiment, to ensure that the first arm 300 and the second arm 301 of the two sets of lifting brackets 3 remain synchronized during rotation, the work platform 1 remains horizontal during lifting. The desktop lifting worktable also includes a synchronization structure, such as... Figure 2 , Figure 4 and Figure 5 As shown, the synchronization structure includes at least one set of synchronization components 4. Each set of synchronization components 4 includes a lead screw 400 and a base 401 respectively connected to two sets of lifting brackets 3. A self-rotating rotating part 402 is axially limited inside the base 401, and the lead screw 400 is threadedly connected to the rotating part 402. When the working platform 1 is raised and lowered relative to the base 2, the lead screw 400 moves along the axial direction of the rotating part 402 to keep the two sets of lifting brackets 3 rotating synchronously at all times. Specifically, the synchronization structure utilizes the threaded engagement of the lead screw 400 and the rotating component 402. When one set of lifting brackets 3 drives the lead screw 400 to move, the rotating component 402 can rotate circumferentially. Conversely, limiting the rotation speed of the rotating component 402 can limit the moving speed of the lead screw 400, thereby enabling the two sets of lifting brackets 3 to maintain synchronous rotation. When the working platform 1 is raised or lowered relative to the base 2, the traction or restriction of the synchronization structure can ensure that the two sets of lifting brackets 3 always maintain synchronous rotation. This not only ensures the stability of the lifting of the working platform 1, but also ensures that the working platform 1 will not tilt during the rising or falling process and will always remain in a horizontal state.

[0043] Specifically in this embodiment, see Figure 1 and Figure 5 As shown, taking a set of synchronization components 4 as an example, the base 401 is rotatably connected to one of the two first arms 300 of the two sets of lifting brackets 3, and the lead screw 400 is rotatably connected to the other first arm 300. A mounting base 403 is connected inside the base 401, and the mounting base 403 has a through hole for the lead screw 400 to pass through. The rotating component 402 is axially limited within the through hole, and the rotating component 402 is connected to the through hole via a bearing 404. The rotational speed of the rotating component 402 can be ensured to be the set speed by setting the parameters of the bearing 404 of the rotating component 402 or by applying friction to the rotating component 402.

[0044] In the above embodiment, the two first arms 300 and two second arms 301 of the two sets of lifting brackets 3 are symmetrically arranged about the horizontal plane where the intermediate connection point 302 is located. That is, the first arms 300 and the second arms 301 of each set of lifting brackets 3 are symmetrically arranged about the intermediate connection point 302; and the vertical projection of the first connection point 100 on the horizontal plane on the working platform 1 corresponds to the vertical projection of the second connection point 200 on the horizontal plane on the base 2. In this way, when the working platform 1 is folded to the lowest position, the first connection point 100 on the working platform 1 and the second connection point 200 on the base 2 are vertically aligned, so that the working platform 1 can better maintain a horizontal state throughout its entire stroke range; when the working platform 1 rises to the maximum stroke, the vertical projection of the intermediate connection point 302 of the two sets of lifting brackets 3 on the horizontal plane does not coincide with the vertical projection of the first connection point 100 and the second connection point 200. That is, the middle connection point 302 of the two sets of lifting brackets 3 is always located at a position that is offset from the vertical connection line of the first connection point 100 and the second connection point 200, so as to avoid the defect that the first arm 300 and the second arm 301 cannot descend normally when rotated to 180 degrees, and make the lifting of the work platform 1 smoother.

[0045] In some embodiments, such as Figure 1 , Figure 2 and Figure 3 As shown, the synchronization structure includes two sets of synchronization components 4, which are arranged in parallel and connected to the two first arms 300 and the two second arms 301 of the two sets of lifting brackets 3, respectively. These two sets of synchronization components 4 ensure that the two first arms 300 and the two second arms 301 of the two sets of lifting brackets 3 rotate synchronously, thereby further improving the lifting synchronization of the two lifting brackets 3.

[0046] Specifically, in the above embodiments, see Figure 2 , Figure 3 and Figure 4 As shown, the two sets of synchronization components 4 include a first synchronization component and a second synchronization component. Each of the two first arms 300 is connected to a first crossbar 303. The lead screw 400 and base 401 of the first synchronization component are rotatably connected to the first crossbar 303 of the two first arms 300, respectively. Each of the two second arms 301 is connected to a second crossbar 304. The lead screw 400 and base 401 of the second synchronization component are rotatably connected to the second crossbar 304 of the two second arms 301, respectively. This arrangement ensures that the two sets of synchronization components 4 do not interfere with each other, and the synchronous rotation of the two first arms 300 is provided by the first synchronization component, while the synchronous rotation of the two second arms 301 is provided by the second synchronization component.

[0047] In some embodiments, the power element 5 is a gas spring capable of outputting a constant thrust. The power element 5 outputs a linear thrust, the direction of which coincides with the axial direction of the power element 5. There are various connection methods for the power element 5. One end of the power element 5 is rotatably connected to the working platform 1 or the base 2, and the other end is rotatably connected to the lifting assembly. In this embodiment, one end of the power element 5 is rotatably connected to the base 2, and the other end is rotatably connected to one of the second support arms 301. In other embodiments, one end of the power element 5 is connected to the working platform 1 and the other end is connected to the base 2; or one end of the power element 5 is rotatably connected to the first support arm 300 and the other end is rotatably connected to the second support arm 301; or both ends of the power element 5 are rotatably connected to two sets of lifting brackets 3 respectively.

[0048] In other embodiments, the power element 5 may also be an electric actuator, a linear motor, a hydraulic rod, or other linear drive mechanism.

[0049] In this embodiment, the power element 5 is specifically a controllable gas spring. One end of the power element 5 is rotatably connected to the pull rod 201 on the base 2, and the other end is rotatably connected to the second crossbar 304 on the second support arm 301. This keeps the power element 5 in an inclined state, effectively providing lift for the work platform 1. The power element 5 has a control switch or valve switch. To allow the work platform 1 to be locked to different heights of its travel, the lifting platform also includes a locking mechanism. The locking mechanism includes a wrench 6 connected to the work platform 1, and the wrench 6 is connected to the control switch of the power element 5 via a brake cable. When the wrench 6 is pulled, the control switch of the power element 5 is opened, and the power element 5 unfolds to drive the lifting assembly to rotate, thereby raising the work platform 1 to adjust its height.

[0050] In some embodiments, to facilitate keyboard placement, a keyboard tray is connected to the side of the work platform 1 closest to the user. When the work platform 1 is in its lowest position, the bottom plane of the keyboard tray is at the same horizontal level as the bottom plane of the base 2. This ensures better stability of the desktop lifting worktable when the work platform 1 is in its lowest position, with the bottom of the keyboard tray in contact with the ground or tabletop.

[0051] Another embodiment of this application discloses a desktop lifting worktable with a synchronous lifting structure, such as... Figure 6 As shown, in this embodiment, two sets of lifting brackets 3 are distributed sequentially along the length of the desktop lifting workbench. When the work platform 1 is raised or lowered relative to the base 2, the middle connection point 302 of the lifting components moves to the same side. In this embodiment, the synchronization structure includes at least one set of synchronization components 4. Other structures in this embodiment are as described in the previous embodiments, and will not be described repeatedly in this embodiment.

[0052] Another embodiment of this application discloses a desktop lifting worktable with a synchronous lifting structure, such as... Figure 7 As shown, in this embodiment, two sets of lifting supports 3 are symmetrically connected to the bottom of the working platform 1. The intermediate connection points 302 of the two sets of lifting supports 3 are both located on the outer side. When the working platform 1 rises relative to the base 2, the intermediate connection points 302 of the two sets of lifting supports 3 move towards each other, and when the working platform 1 descends relative to the base 2, the intermediate connection points 302 of the two sets of lifting supports 3 move away from each other. Other structures in this embodiment are the same as those in the previous embodiments, and will not be described repeatedly in this embodiment.

[0053] In the description of the embodiments of this application, it should be noted that the terms "inner" and "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship 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, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0054] In the description of this application, the references to terms such as "an embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0055] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A desktop lifting worktable with a synchronous lifting structure, characterized in that: It includes Work platform; A base that is placed on an existing desktop or tabletop; as well as A lifting assembly connecting the work platform and the base for adjusting the height of the work platform relative to the base includes at least two sets of lifting brackets, each set of lifting brackets including two arms: a first arm and a second arm. The upper end of the first arm is rotatably connected to a first connection point on the work platform, and the lower end of the second arm is rotatably connected to a second connection point on the base. The lower end of the first arm and the upper end of the second arm are rotatably connected via an intermediate connection point. When the work platform is raised or lowered relative to the base, the intermediate connection point gradually moves closer to or further away from the line connecting the first connection point and the second connection point. The synchronous structure includes at least one set of synchronous components. Each set of synchronous components includes a lead screw and a base respectively connected to two sets of lifting brackets. A rotatable rotating component is axially limited in the base, and the lead screw is threadedly connected to the rotating component. When the working platform is raised or lowered relative to the base, the lead screw moves along the axial direction of the rotating component to keep the two sets of lifting brackets rotating synchronously at all times. A power element, connected between the work platform and the base, is used to provide lift for the work platform to rise.

2. The desktop lifting worktable with a synchronous lifting structure according to claim 1, characterized in that: The two sets of lifting brackets are symmetrically arranged on both sides of the bottom of the working platform, and when the working platform is raised or lowered relative to the base, the middle connection points of the two sets of lifting brackets move closer to each other or move further away from each other at the same time.

3. The desktop lifting worktable with a synchronous lifting structure according to claim 2, characterized in that: The vertical projection of the first connection point on the working platform onto the horizontal plane corresponds to and coincides with the vertical projection of the second connection point on the base onto the horizontal plane. Furthermore, when the working platform rises to its maximum stroke, the vertical projections of the intermediate connection points of the two sets of lifting brackets onto the horizontal plane do not coincide with the vertical projections of the first connection point and the second connection point.

4. The desktop lifting worktable with a synchronous lifting structure according to claim 3, characterized in that: The two first arms and two second arms of the two sets of lifting brackets are symmetrically arranged about the horizontal plane where the intermediate connection point is located.

5. The desktop lifting worktable with a synchronous lifting structure according to claim 2, characterized in that: The synchronization structure includes two sets of synchronization components, which are arranged in parallel and connected to the two first arms and two second arms of the two sets of lifting brackets, respectively.

6. The desktop lifting worktable with a synchronous lifting structure according to claim 5, characterized in that: The two sets of synchronization components include a first synchronization component and a second synchronization component. A first crossbar is connected to each of the two first arms. The lead screw and base of the first synchronization component are rotatably connected to the first crossbars of the two first arms, respectively. A second crossbar is connected to each of the two second arms. The lead screw and base of the second synchronization component are rotatably connected to the second crossbars of the two second arms, respectively.

7. The desktop lifting worktable with a synchronous lifting structure according to claim 1, characterized in that: The base is connected to a mounting seat, which has a through hole for the lead screw to pass through. The rotating component is axially limited within the through hole, and the rotating component is connected to the through hole via a bearing.

8. The desktop lifting worktable with a synchronous lifting structure according to claim 1, characterized in that: The power element is a gas spring. One end of the power element is rotatably connected to the working platform or base, and the other end is rotatably connected to the lifting assembly; or one end of the power element is connected to the working platform and the other end is connected to the base; or one end of the power element is rotatably connected to the first support arm and the other end is rotatably connected to the second support arm; or both ends of the power element are rotatably connected to two sets of lifting brackets respectively.

9. The desktop lifting worktable with a synchronous lifting structure according to claim 8, characterized in that: The desktop lifting worktable also includes a locking mechanism, which includes a wrench connected to the work platform. The wrench is connected to the control switch of the power element via a brake cable.

10. The desktop lifting worktable with a synchronous lifting structure according to claim 1, characterized in that: The keyboard tray is connected to the side of the work platform closest to the user. When the work platform is in its lowest position, the bottom plane of the keyboard tray is at the same horizontal level as the bottom plane of the base.

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