Lifting platform

Abstract

The invention discloses a lifting platform which comprises a working platform, a base and a lifting assembly, the lifting assembly comprises at least one set of lifting arms, each set of lifting arms comprises at least two supporting arms, namely a first supporting arm and a second supporting arm, the middles of the supporting arms intersect in an X shape, the supporting arms are not connected, and the upper ends of the two supporting arms are connected with sliding parts in sliding connection with the working platform respectively. The lower ends of the two support arms are rotationally connected with the hinge seats on the base respectively; when the height of the working platform is adjusted relative to the base, the two sliding pieces move oppositely or oppositely at the same time. Each lifting arm further comprises a connecting rod assembly which comprises a first connecting rod and a second connecting rod, the first connecting rod, the working platform and the first supporting arm form a triangular supporting structure, and the second connecting rod, the working platform and the second supporting arm form a triangular supporting structure. The lifting table is not prone to rollover, good in supporting stability, simple in installation structure and stable in lifting.

Description

Technical Field

[0001] This application relates to the technical field of computer carrying devices, and specifically relates to a lifting platform. Background Art

[0002] With the continuous development of society, flat panel displays, tablet computers, etc. have become more and more popular in ordinary families, and the corresponding brackets have emerged as the times require. The lifting platforms in related technologies for carrying tablet computers, also known as lifting workbenches, lifting work desks, or desktop computer brackets, etc., are generally placed on desktops or tabletops, and the height can be adjusted up and down during use to meet the needs of users for a healthy way of working standing or alternating between standing and sitting.

[0003] The structure of the lifting platform in related technologies generally includes a base, a working platform, and an X-shaped lifting arm arranged between the base and the working platform. The lifting arm includes two struts hinged in the middle to form an X shape: a first strut and a second strut. The upper end of the first strut is rotatably connected to the working platform, and the lower end of the first strut is slidably fitted on the base; the lower end of the second strut is rotatably connected to the base, and the upper end of the second strut is slidably fitted on the working platform; this lifting workbench also includes a power element, which is generally a gas spring, and this gas spring is used to provide the lifting force for the working platform to rise and to offset or partially offset the load of the working platform. This related technology lifting platform controls the action of the gas spring through a cable and a wrench connected to the working platform so that the height of the working platform can be adjusted.

[0004] The inventor found the following defects in the lifting platform of the above related technologies during actual use: The middle parts of the first strut and the second strut of the X-shaped lifting arm of this related technology lifting platform are hinged by a hinge pin. When the working platform rises and falls relative to the base, the lower end of the first strut and the upper end of the second strut both slide towards one side of the lifting workbench at the same time, and the center of gravity of the load on the working platform deviates from the support center of gravity of the X-shaped lifting arm, which is likely to cause tipping and has potential safety hazards; furthermore, the middle parts of the first strut and the second strut of the X-shaped lifting arm are hinged by a hinge pin, and the installation accuracy requirements for the hinge pin are relatively high, and the installation or calibration is relatively troublesome. Otherwise, when the lifting arm rises and falls, the working platform cannot be kept in a horizontal state. Summary of the Invention

[0005] The technical problem to be solved by this application is to overcome the defects of the above related technologies and provide a lifting platform that is not easy to tip over, has good support stability, a simple installation structure, and smooth lifting.

[0006] The technical solution of this application is to provide a lifting platform with the following structure: It includes

[0007] A working platform;

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

[0009] A lifting component connecting the working platform and the base for adjusting the height of the working platform relative to the base. The lifting component includes at least one set of lifting arms, and each set of lifting arms includes at least two arms that cross in the middle to form an X shape and are not connected to each other: a first arm and a second arm. The upper ends of the two arms are respectively connected with sliding members that are slidably connected to the working platform, and the lower ends of the two arms are respectively rotatably connected to hinge seats on the base. When the height of the working platform is adjusted relative to the base, the two sliding members move towards each other or away from each other simultaneously; each set of lifting arms further includes,

[0010] A link assembly, which includes a first link and a second link. The upper end of the first link is rotatably connected to the working platform, and the lower end of the first link is rotatably connected to the first arm; the upper end of the second link is rotatably connected to the working platform, and the lower end of the second link is rotatably connected to the second arm; wherein, the first link, the working platform and the first arm, and the second link, the working platform and the second arm respectively form triangular support structures;

[0011] The lifting table further includes a power element, which is arranged between the working platform and the base and is used to provide the lifting force for the working platform to rise.

[0012] In some embodiments, the first link is arranged parallel to the second arm, and the second link is arranged parallel to the first arm; the distance from the rotation connection point at the upper end of the first link to the center line between the two sliding members is equal to the distance from the rotation connection point at the upper end of the second link to the center line between the two sliding members.

[0013] In some embodiments, two sets of spaced-apart slide rail assemblies are connected along the length direction at the bottom of the working platform. A first slide bar and a second slide bar are respectively slidably connected to the two sets of slide rail assemblies, and the first slide bar and the second slide bar form the two sliding members.

[0014] In some embodiments, the power element is a gas spring. One end of the power element is rotatably connected to the working platform or the base, and the other end is rotatably connected to the lifting component; or one end of the power element is connected to the working platform and the other end is connected to the base; or both ends of the power element are respectively rotatably connected to the first arm and the second arm.

[0015] In some embodiments, the desktop lifting workbench further includes a locking mechanism. The locking mechanism includes a wrench connected to the working platform, and the wrench is connected to the control switch of the power element through a cable.

[0016] In some embodiments, a connecting rod is connected to the base, and a swing arm protruding upward from the second arm is connected to one side of the second arm close to the base. One end of the power element is rotatably connected to the connecting rod, and the other end of the power element is rotatably connected to the swing arm; when the working platform is in the lowest position, the axis of the power element is inclined relative to the plane where the base is located.

[0017] In some embodiments, a keyboard tray is connected to the side of the working platform close to the user, and a support pad is connected to the bottom of the keyboard tray. When the working platform is in the lowest position, the bottom plane of the support pad is at the same horizontal height as the bottom plane of the base.

[0018] Another technical solution of the present application is to provide a lifting platform having the following structure: It includes

[0019] A working platform;

[0020] A base placed on an existing desktop or tabletop; and

[0021] A lifting assembly connecting the working platform and the base for adjusting the height of the working platform relative to the base. The lifting assembly includes at least one set of lifting arms, and each set of lifting arms includes at least two arms that cross in the middle to form an X shape and are not connected to each other: a first arm and a second arm. The lower ends of the two arms are respectively connected with sliding members that are slidably connected to the base, and the upper ends of the two arms are respectively rotatably connected to hinge seats on the working platform; when the height of the working platform is adjusted relative to the base, the two sliding members move towards each other or away from each other simultaneously; each set of the lifting arms further includes,

[0022] A connecting rod assembly, which includes a first connecting rod and a second connecting rod. The first connecting rod is arranged parallel to the second arm, and the second connecting rod is arranged parallel to the first arm; the lower end of the first connecting rod is rotatably connected to the base, and the upper end of the first connecting rod is rotatably connected to the first arm; the lower end of the second connecting rod is rotatably connected to the base, and the upper end of the second connecting rod is rotatably connected to the second arm; wherein, the first connecting rod, the base and the first arm, and the second connecting rod, the base and the second arm respectively form a triangular support structure;

[0023] The lifting platform further includes a power element, which is arranged between the working platform and the base and is used to provide the lifting force for the working platform to rise.

[0024] In summary, compared with the related art, a lifting platform of the present application has the following advantages:

[0025] First, the first arm and the second arm of the lifting arm of the lifting platform are arranged in a cross-shaped and non-connected X-shaped manner, that is, the first arm and the second arm of the lifting arm are independently arranged and do not connect or interfere with each other. In this way, compared with the lifting arm with the middle parts of the first arm and the second arm hinged in the related art, the assembly between the first arm and the second arm is avoided, the assembly process is simplified, and its installation structure is simple.

[0026] Secondly, the lower ends of the two arms of the lifting arm are respectively rotatably connected to the hinge seats on the base, and the upper ends of the two arms are respectively connected to two sliding members on the working platform; or the upper ends of the two arms of the lifting arm are respectively rotatably connected to the hinge seats on the working platform, and the lower ends of the two arms are respectively connected to two sliding members on the base; in this way, during the lifting process of the lifting platform, the rotation connection points of the lower ends of the two arms with the base always remain unchanged, and the two sliding members connected to the upper ends of the two arms move towards each other or away from each other simultaneously on the working platform; or the rotation connection points of the upper ends of the two arms with the working platform always remain unchanged, and the two sliding members connected to the lower ends of the two arms move towards each other or away from each other simultaneously on the base; thus, within the entire height adjustment range of the lifting platform, the support center of gravity of the lifting arm always remains on the same vertical line as the load center of gravity of the working platform, or the support center of gravity of the lifting arm coincides with the load center of gravity of the working platform and does not shift relatively, so that the support stability of the lifting platform is good, it is not easy to tip over, and the safety is high.

[0027] Furthermore, with the setting of the connecting rod assembly, when the working platform moves up and down relative to the base, the first connecting rod and the second connecting rod can ensure that the two sliding members slide synchronously and rotate synchronously, so that the rotation and lifting of the first arm and the second arm are kept synchronous, and the working platform always remains in a horizontal state; in addition, the first connecting rod, the working platform and the first arm, and the second connecting rod, the working platform and the second arm respectively form a triangular support structure, or the first connecting rod, the base and the first arm, and the second connecting rod, the base and the second arm respectively form a triangular support structure, thereby improving the support stability and structural stability of the lifting platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of a lifting platform according to some embodiments of the present application.

[0029] Figure 2 is another perspective schematic diagram of a lifting platform according to some embodiments of the present application.

[0030] Figure 3 is a schematic side structural diagram of a lifting platform according to some embodiments of the present application.

[0031] Figure 4Schematic diagram of the bottom structure of a lifting platform according to some embodiments of the present application.

[0032] Figure 5 Schematic diagram of the working platform of a lifting platform in the lowest position according to some embodiments of the present application.

[0033] Figure 6 Schematic diagram of the lifting arm of a lifting platform according to some embodiments of the present application.

[0034] Figure 7 Another perspective schematic diagram of the lifting arm of a lifting platform according to some embodiments of the present application.

[0035] Figure 8 Schematic diagram of the lifting of the lifting arm of a lifting platform according to some embodiments of the present application.

[0036] Description of reference numerals:

[0037] 1. Working platform, 100. Slide rail, 2. Base, 200. Connecting rod, 3. Lifting arm, 300. First support arm, 301. Second support arm, 302. Swing arm, 303. First connecting rod, 304. Second connecting rod, 4. Keyboard tray, 400. Support pad, 5. Power element, 6. First slide bar, 600. Second slide bar, 7. Wrench, 8. Hinge seat. Detailed implementation manners

[0038] First of all, those skilled in the art should understand that these embodiments 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 according to needs to adapt to specific application scenarios.

[0039] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "connected" and "connected" 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 those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0040] In the embodiments of the present application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the 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, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0041] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] See Figures 1 to 8 As shown, an embodiment of the present application discloses a lifting table, which is also called a desktop workbench, a desktop lifting table, etc. Its structure includes a working platform 1, a base 2, a power element 5, and a lifting assembly connecting the working platform 1 and the base 2 for adjusting the height of the working platform 1 relative to the base 2. The power element 5 is arranged between the working platform 1 and the base 2, and is used to provide the lifting force for the working platform 1 to rise and offset or partially offset the load of the working platform 1; the working platform 1 is also called a table board, a placing panel, etc., and the base 2 is also called a base, a chassis, etc. The base is placed on the desktop or tabletop in the prior art.

[0043] In this embodiment, the power element 5 is a gas spring that can output a constant thrust. The power element 5 outputs a linear thrust, and the direction of the thrust coincides with the axis direction of the power element 5. One end of the power element 5 is rotatably connected to the base 2, and the other end of the power element 5 is rotatably connected to the lifting assembly; in other embodiments, one end of the power element 5 is rotatably connected to the working platform 1, and the other end of the power element 5 is rotatably connected to the lifting assembly; or one end of the power element 5 is rotatably connected to the working platform 1, and the other end of the power element 5 is rotatably connected to the base; or both ends of the power element 5 are respectively rotatably connected to the first arm 300 and the second arm 301 of a set of lifting arms 3. Among them, the other end of the power element 5 being rotatably connected to the lifting assembly means that the other end of the power element 5 is rotatably connected to the first arm 300 or the second arm 301 of the lifting assembly.

[0044] In other embodiments, the power element 5 may also be other linear driving mechanisms such as an electric push rod, a linear motor, a hydraulic rod, etc.

[0045] In this embodiment, specifically, the gas spring is a controllable gas spring, which has a control switch or a valve switch. In order to enable the working platform 1 to be locked at different heights of its stroke, the lifting platform further includes a locking mechanism. The locking mechanism includes a wrench 7 connected to the working platform 1, and the wrench 7 is connected to the control switch of the power element 5 through a cable. Pull the wrench 7 to drive the control switch of the power element 5 to open, and the power element 5 expands to drive the lifting arm 3 to rotate to raise the working platform 1 to adjust the height.

[0046] In some embodiments, as Figure 1 and Figure 3 shown, a connecting rod 200 is connected to the base 2. On one side of the second arm 301 close to the base 2, a swing arm 302 with a free end protruding upward from the second arm 301 is connected. One end of the power element 5 is rotatably connected to the connecting rod 200, and the other end of the power element 5 is rotatably connected to the free end of the swing arm 302; when the working platform 1 is in the lowest position, the axis of the power element 5 is inclined with respect to the plane where the base 2 is located. In this way, when the working platform 1 is in the lowest position, the power element 5 can also provide sufficient lifting force to expand the working platform 1 upward from the lowest position.

[0047] In the above embodiment, the lifting assembly connects the working platform 1 and the base 2 for adjusting the height of the working platform 1 relative to the base 2. The lifting assembly includes at least one set of lifting arms 3. Each set of lifting arms 3 includes at least two arms that cross in the middle to form an X shape and are not connected to each other: a first arm 300 and a second arm 301. The upper ends of the two arms are respectively connected with sliding members that are slidably connected to the working platform 1, and the lower ends of the two arms are respectively rotatably connected to the hinge seats on the base 2; when the working platform 1 adjusts its height relative to the base 2, the two sliding members move towards each other or away from each other simultaneously.

[0048] In this embodiment, as Figure 2 、 Figure 3 and Figure 4 shown, the bottom of the working platform 1 is connected with a slide rail assembly. The slide rail assembly includes two sets of slide rails 100 with the same or parallel length directions. Both of the two slide rails 100 are provided with sliding grooves extending along their length directions; a first slide bar 6 that is slidably fitted in the sliding groove of one set of slide rails 100 of the working platform 1 is connected to the upper end of the first arm 300, and a second slide bar 600 that is slidably fitted in the sliding groove of the other set of slide rails 100 of the working platform 1 is connected to the upper end of the second arm 301, and the first slide bar 6 and the second slide bar 600 are arranged in parallel. The first slide bar 6 and the second slide bar 600 form two sliding members; in other embodiments, the two sets of slide rails 100 can also be an integral slide rail, but when the first slide bar 6 and the second slide bar 600 slide towards each other to the shortest distance, there is a certain gap between them, and this gap can provide sufficient support for the working platform 1.

[0049] In the above embodiment, the first arm 300 and the second arm 301 cross to form an X shape and are not connected to each other; that is, the first arm 300 and the second arm 301 are independently arranged, and the first arm 300 and the second arm 301 are not hinged by a hinge pin; that is, the first arm 300 and the second arm 301 of the lifting arm 3 are respectively independently arranged and do not connect or interfere with each other. Compared with the lifting arm 3 in the related art where the middle parts of the first arm 300 and the second arm 301 are hinged, the assembly between the first arm 300 and the second arm 301 is avoided, the assembly process is simplified, and its installation structure is simple.

[0050] In this embodiment, the first arm 300 is a rectangular frame, the second arm 301 is a single rod, and the second arm 301 is cross - arranged at the middle position of the first arm 300. In other embodiments, the lifting arms 3 of the lifting assembly can also be arranged in two groups, three groups, four groups, etc., and are distributed along the width direction of the working platform 1.

[0051] It is not difficult to understand that in this embodiment, when the power element 5 drives the lifting arm 3 to rotate to raise the working platform 1, the lower ends of the first arm 300 and the second arm 301 respectively rotate relative to the base 2, so that the angles between the first arm 300 and the second arm 301 and the horizontal plane where the base 2 is located gradually become larger; at the same time, the upper ends of the first arm 300 and the second arm 301 move towards each other; conversely, when the working platform 1 folds downward relative to the base 2, the angles between the first arm 300 and the second arm 301 and the horizontal plane where the base 2 is located gradually become smaller, and the upper ends of the first arm 300 and the second arm 301 move away from each other.

[0052] In this embodiment, as Figure 2 and Figure 3 shown, the lower ends of the two arms of the lifting arm 3 are respectively rotatably connected to the hinge seats 8 on the base 2, and the upper ends of the two arms are respectively connected to two sliding members on the working platform 1; in this way, during the lifting process of the lifting platform, the rotation connection points of the lower ends of the two arms with the base 2 always remain unchanged, and the two sliding members connected to the upper ends of the two arms move towards each other or away from each other simultaneously on the working platform 1; thus, within the entire height adjustment range of the lifting platform, the support center of gravity of the lifting arm 3 always remains 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 arm 3 coincides with the load center of gravity of the working platform 1 and does not shift relatively, so that the support stability of the lifting platform is good, it is not easy to tip over, and the safety is high.

[0053] It is not difficult to understand that when the first arm 300 and the second arm 301 of the lifting arm 3 perform a scissor-like movement, while the sliding members on the first arm 300 and the second arm 301 or the first sliding rod 6 and the second sliding rod 600 are performing a translational movement, they rotate around their own axes in the circumferential direction by an angle; in order to synchronize the translation and rotation of the two sliding members, in this embodiment, each set of lifting arms 3 further includes a connecting rod assembly, the connecting rod assembly includes a first connecting rod 303 and a second connecting rod 304, the upper end of the first connecting rod 303 is rotatably connected to the working platform 1, and the lower end of the first connecting rod 303 is rotatably connected to the first arm 300; the upper end of the second connecting rod 304 is rotatably connected to the working platform 1, and the lower end of the second connecting rod 304 is rotatably connected to the second arm 301; wherein, the first connecting rod 303, the working platform 1 and the first arm 300, and the second connecting rod 304, the working platform 1 and the second arm 301 respectively form a triangular support structure.

[0054] In the above embodiment, when the working platform 1 is lifted or lowered relative to the base 2, the first connecting rod 303 and the second connecting rod 304 can ensure that the two sliding members slide synchronously and rotate synchronously, so that the rotational lifting of the first arm 300 and the second arm 301 is kept synchronous, and the working platform 1 is always in a horizontal state; in addition, the first connecting rod 303, the working platform 1 and the first arm 300, and the second connecting rod 304, the working platform 1 and the second arm 301 respectively form a triangular support structure, thereby improving the support stability and structural stability of the lifting platform.

[0055] Further in this embodiment, as Figure 2 、 Figure 6 and Figure 7 shown, the first connecting rod 303 is arranged in parallel with the second arm 301, and the second connecting rod 304 is arranged in parallel with the first arm 300; the distance from the rotation connection point at the upper end of the first connecting rod 303 to the center line between the two sliding members is equal to the distance from the rotation connection point at the upper end of the second connecting rod 304 to the center line between the two sliding members. That is, the rotation connection points at the upper ends of the first connecting rod 303 and the second connecting rod 304 are in the same plane, and the rotation connection points at the lower ends of the first connecting rod 303 and the second connecting rod 304 are also in the same plane. In this way, when the working platform 1 is lifted or lowered relative to the base 2, the first connecting rod 303 and the second connecting rod 304 will not interfere with the rotation of the first arm 300 and the second arm 301, so that the lifting of the working platform 1 is more stable and remains in a horizontal state.

[0056] As Figure 8 shown, when the working platform 1 descends a certain height relative to the base 2, the first arm 300 and the second arm 301 both rotate downward by the same angle, and the first connecting rod 303 and the second connecting rod 304 also rotate synchronously by the same angle, so that the working platform 1 can remain in a horizontal state during the lifting and lowering process.

[0057] For another example Figure 1 and Figure 2 As shown, for the convenience of placing the keyboard, a keyboard tray 4 is connected to the side of the work platform 1 close to the user. A support pad 400 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 400 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 400 at the bottom of the keyboard tray 4 contacts the ground or the tabletop, which makes the standing stability of the lifting platform better.

[0058] In another embodiment, the structure of the lifting platform includes a work platform 1, a base 2 placed on an existing desktop or tabletop, 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. Each set of lifting arms 3 includes at least two arms that cross in the middle to form an X shape and are not connected to each other: a first arm 300 and a second arm 301. The lower ends of the two arms are respectively connected with sliding members that are slidably connected to the base 2, and the upper ends of the two arms are respectively rotatably connected to the hinge seats on the work platform 1; when the work platform 1 adjusts its height relative to the base 2, the two sliding members move towards each other or away from each other simultaneously; each set of lifting arms further includes a connecting rod assembly, which includes a first connecting rod and a second connecting rod. The first connecting rod is arranged parallel to the second arm, and the second connecting rod is arranged parallel to the first arm; the lower end of the first connecting rod is rotatably connected to the base, and the upper end of the first connecting rod is rotatably connected to the first arm; the lower end of the second connecting rod is rotatably connected to the base, and the upper end of the second connecting rod is rotatably connected to the second arm; wherein, the first connecting rod, the base and the first arm, and the second connecting rod, the base and the second arm respectively form a triangular support structure; the lifting platform further includes a power element 5, and the power element 5 is arranged between the work platform and the base for providing the lifting force for the work platform 1 to rise.

[0059] That is to say, compared with the previous embodiment, in this embodiment, the two sliding members are installed on the base, and the hinge seats are installed on the work platform. Correspondingly, the connecting rod assembly is rotatably connected to the base; and other technical means in this embodiment are the same as those in the previous embodiment, so this embodiment will not be described repeatedly.

[0060] In the description of the embodiments of the present application, it should be noted that in the description of the present application, the terms indicating the direction or positional relationship such as "inside", "outside", etc. are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description, rather than indicating or implying that the device or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0061] In the description of the present application, the descriptions referring to terms such as "one embodiment", "some embodiments", "in this embodiment", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0062] As described above, it is only the specific implementation manner 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 those skilled in the art within the technical scope disclosed by the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A lifting platform, characterized in that: It includes a working platform; a base placed on an existing desktop or tabletop; and a lifting assembly connecting the working platform and the base for adjusting the height of the working platform relative to the base. The lifting assembly includes at least one set of lifting arms, and each set of lifting arms includes at least two arms that cross in the middle to form an X shape and are not connected to each other: a first arm and a second arm. The upper ends of the two arms are respectively connected with sliding members that are slidably connected to the working platform, and the lower ends of the two arms are respectively rotatably connected to hinge seats on the base. When the height of the working platform is adjusted relative to the base, the two sliding members move towards each other or away from each other simultaneously; each set of lifting arms further includes, a link assembly, which includes a first link and a second link. The upper end of the first link is rotatably connected to the working platform, and the lower end of the first link is rotatably connected to the first arm; the upper end of the second link is rotatably connected to the working platform, and the lower end of the second link is rotatably connected to the second arm; wherein, the first link, the working platform and the first arm, and the second link, the working platform and the second arm respectively form triangular support structures; the lifting table further includes a power element, which is arranged between the working platform and the base and is used to provide the lifting force for the working platform to rise.

2. The lift table according to claim 1, wherein: The first link is arranged parallel to the second arm, and the second link is arranged parallel to the first arm; the distance from the rotation connection point at the upper end of the first link to the center line between the two sliding members is equal to the distance from the rotation connection point at the upper end of the second link to the center line between the two sliding members.

3. The lift table according to claim 1, characterized in that: Two sets of spaced-apart slide rail assemblies are connected along the length direction at the bottom of the working platform. A first slide bar and a second slide bar are respectively slidably connected to the two sets of slide rail assemblies, and the first slide bar and the second slide bar form the two sliding members.

4. The lift table 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 the 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 both ends of the power element are respectively rotatably connected to the first arm and the second arm.

5. The lift table according to claim 4, wherein: The desktop lifting workbench further includes a locking mechanism, which includes a wrench connected to the working platform. The wrench is connected to the control switch of the power element through a cable.

6. The lift table according to claim 1, wherein: A link is connected to the base. A swing arm protruding upward from the second arm is connected to the side of the second arm close to the base. One end of the power element is rotatably connected to the link, and the other end of the power element is rotatably connected to the swing arm; when the working platform is in the lowest position, the axis of the power element is inclined relative to the plane of the base.

7. The lifting platform according to claim 1, wherein: A keyboard tray is connected to the side of the working platform close to the user. A support pad is connected to the bottom of the keyboard tray. When the working platform is in the lowest position, the bottom plane of the support pad is at the same horizontal height as the bottom plane of the base.

8. A lifting platform, characterized in that: It includes a working platform; a base placed on an existing desktop or tabletop; and A lifting assembly connecting the working platform and the base for adjusting the height of the working platform relative to the base. The lifting assembly includes at least one set of lifting arms, and each set of lifting arms includes at least two arms that cross in the middle to form an X shape and are not connected to each other: a first arm and a second arm. The lower ends of the two arms are respectively connected with sliding members that are slidably connected to the base, and the upper ends of the two arms are respectively rotatably connected to hinge seats on the working platform. When the height of the working platform is adjusted relative to the base, the two sliding members move towards each other or away from each other simultaneously. Each set of lifting arms further includes, a connecting rod assembly, which includes a first connecting rod and a second connecting rod. The first connecting rod is arranged parallel to the second arm, and the second connecting rod is arranged parallel to the first arm. The lower end of the first connecting rod is rotatably connected to the base, and the upper end of the first connecting rod is rotatably connected to the first arm. The lower end of the second connecting rod is rotatably connected to the base, and the upper end of the second connecting rod is rotatably connected to the second arm. Wherein, the first connecting rod, the base and the first arm, and the second connecting rod, the base and the second arm respectively form triangular support structures; The lifting platform further includes a power element, which is arranged between the working platform and the base and is used to provide the lifting force for the working platform to rise.

Images