CN117481455A - Table top lifting workbench - Google Patents

Abstract

The invention discloses a desktop lifting workbench, which comprises a workbench, a base, lifting components, two groups of synchronous components and a power element, wherein the lifting components comprise at least one group of lifting arms, and each group of lifting arms comprises at least two support arms with the middle parts hinged in an X shape; the upper ends of the two support arms are respectively provided with a first sliding part in sliding connection with the working platform, and the lower ends of the two support arms are respectively provided with a second sliding part in sliding connection with the base; a first synchronous component is connected between the two first sliding pieces, and a second synchronous component is connected between the two second sliding pieces; the synchronous component is connected with the lifting working table through the two traction arms which rotate synchronously, so that the movement between the two first sliding parts and the movement between the two second sliding parts are kept synchronous, and the lifting working table is not easy to roll over, good in supporting stability and stable and smooth in lifting.

Description

Table top lifting workbench

Technical Field

The application relates to the technical field of computer bearing equipment, in particular to a desktop lifting workbench.

Background

With the continuous development of society, flat panel displays, tablet computers and the like are becoming more and more popular in ordinary families, and a bracket matched with the flat panel displays, the tablet computers and the like is generated. The related art desktop workbench for carrying a tablet personal computer, which is also called a lifting workbench, a desktop computer bracket or the like, is generally placed on a desktop or a table top, and can be lifted and adjusted in height when in use, so as to meet the requirements of a healthy office mode that a user stands for office or stands for alternate office.

The desktop lifting workbench of the related art generally comprises a base, a working platform and an X-shaped lifting arm arranged between the base and the working platform, wherein the lifting arm comprises two struts with middle parts hinged to be X-shaped: the upper end of the first supporting rod is rotatably connected with the working platform, and the lower end of the first supporting rod is in sliding fit on the base; the lower end of the second supporting rod is rotatably connected with the base, and the upper end of the second supporting rod is in sliding fit on the working platform; the lifting workbench further comprises a power element, the power element is generally a gas spring, one end of the gas spring is connected with the working platform, the other end of the gas spring is connected with the lifting arm, and the gas spring is used for providing lifting force for lifting the working platform and counteracting or partially counteracting the bearing of the working platform. The lifting workbench of the related art controls the action of the gas spring through the brake cable and the spanner connected to the workbench, so that the height of the workbench is adjustable.

The inventor finds that the lifting workbench of the related art has the following defects in the actual use process: the middle parts of the first supporting rod and the second supporting rod of the X-shaped lifting arm of the desktop lifting workbench in the related art are hinged through the hinge pin, when the workbench ascends or descends relative to the base, the lower end of the first supporting rod and the upper end of the second supporting rod simultaneously slide to one side of the lifting workbench, so that the supporting gravity center of the lifting arm deviates from the gravity center of the load of the workbench, side turning is easy to occur, and potential safety hazards are caused.

Disclosure of Invention

The technical problem to be solved by the application is to overcome the defects of the related art, and provide the tabletop lifting workbench which has the advantages that the supporting gravity center of the lifting arm and the gravity center of the load of the workbench are kept unchanged relatively when the lifting workbench is lifted, rollover is avoided, and the supporting stability is good.

The technical solution of the application is to provide a desktop lifting workbench with the following structure: the device comprises a working platform;

a base placed on an existing desktop or counter top; and

connect work platform with the base is used for adjusting work platform for the lifting unit of base height, lifting unit includes at least a set of lifting arm, and every group lifting arm includes that two at least middle parts are articulated the support arm that is X shape: the upper ends of the first support arm and the second support arm are respectively provided with a first sliding part which is in sliding connection with the working platform, and the lower ends of the two support arms are respectively provided with a second sliding part which is in sliding connection with the base; the desktop lifting workbench further comprises a lifting device,

the first synchronous component is arranged between the two first sliding pieces and comprises two first traction arms which are folded towards the center or unfolded towards two sides at the same time, and the two first traction arms are respectively connected with the two first sliding pieces and are used for enabling the two first sliding pieces to always keep synchronous movement when the height of the working platform is adjusted relative to the base;

the second synchronous component is arranged between the two second sliding parts and comprises two second traction arms which are folded towards the center or unfolded towards two sides at the same time, and the two second traction arms are respectively connected with the two second sliding parts and are used for enabling the two second sliding parts to always keep synchronous movement when the height of the working platform is adjusted relative to the base;

and the power element is connected between the working platform and the base and is used for providing lifting force for the lifting of the working platform.

In some embodiments, the working platform is connected with two groups of first sliding rail assemblies distributed at intervals along the length direction, the two groups of first sliding rail assemblies are respectively connected with first sliding rods in a sliding manner, and the two first sliding rods are arranged in parallel and form two first sliding pieces; the base is connected with two groups of second sliding rail assemblies which are distributed at intervals along the length direction, the two groups of second sliding rail assemblies are respectively connected with second sliding rods in a sliding manner, and the two second sliding rods are arranged in parallel and form two second sliding pieces.

In some embodiments, the first synchronization assembly comprises a first rotating arm rotatably connected to the working platform, and two ends of the first rotating arm are respectively rotatably connected with the two first traction arms; when the working platform ascends to enable the two first sliding pieces to move in opposite directions, the two first sliding pieces are linked with the two first traction arms to fold towards the center and enable the first rotating arm to rotate around the rotating center of the first rotating arm along the first direction; when the working platform descends to enable the two first sliding parts to move oppositely, the two first sliding parts are linked with the two first traction arms to be unfolded to two sides, and the first rotating arm rotates around the rotating center of the first traction arm along the second direction; the first direction is opposite to the second direction.

In some embodiments, the second synchronizing assembly comprises a second rotating arm rotatably connected to the base, and two ends of the second rotating arm are respectively rotatably connected with the two second traction arms; when the working platform ascends to enable the two second sliding pieces to move in opposite directions, the two second sliding pieces are linked with the two second traction arms to fold towards the center, and the second rotating arms rotate around the rotating centers of the second traction arms along the first direction; when the working platform descends to enable the two second sliding parts to move oppositely, the two second sliding parts are linked with the two second traction arms to be unfolded to two sides, and the second rotating arm rotates around the rotating center of the second rotating arm along a second direction; the first direction is opposite to the second direction.

In some embodiments, the two first traction arms are respectively and rotatably connected with the two first sliding pieces, and the two first traction arms are respectively and axially limited on the two first sliding pieces; the two second traction arms are respectively and rotatably connected with the two second sliding pieces, and the two second traction arms are respectively and axially limited on the two second sliding pieces.

In some embodiments, the two first sliding pieces are respectively connected with a first connecting seat in a rotating manner along the circumferential direction, and the two first sliding pieces are respectively provided with a first annular limiting groove which corresponds to the two first connecting seats and is concave inwards; each first connecting seat is connected with a first elastic limiting block, the first elastic limiting blocks are embedded in the first annular limiting grooves, and the two first connecting seats are respectively and rotatably connected with the two first traction arms; the two second sliding pieces are respectively connected with a second connecting seat in a rotating manner along the circumferential direction, and are respectively provided with a second annular limiting groove which corresponds to the two second connecting seats and is concave inwards; each second connecting seat is connected with a second elastic limiting block, the second elastic limiting blocks are embedded in the second annular limiting grooves, and the two second connecting seats are respectively and rotatably connected with the two second traction arms.

In some embodiments, a first main shaft is connected to the bottom of the working platform, the first rotating arm is rotatably connected to the first main shaft, and the two first traction arms are symmetrically arranged about the center of the first main shaft; the bottom of base is connected with the second main shaft, the second rotating arm rotatable coupling is in on the second main shaft, two the second traction arm is with the center symmetry setting of second main shaft.

In some embodiments, the power element is a gas spring, one end of the power element is rotatably connected with the working platform or the base, and the other end of the power element is rotatably connected with the lifting assembly; or one end of the power element is connected with the working platform, and the other end of the power element is connected with the base; or one end of the power element is rotatably connected with the first support arm, and the other end of the power element is rotatably connected with the second support arm.

In some embodiments, the tabletop lifting workbench further comprises a locking mechanism, wherein the locking mechanism comprises a spanner connected to the workbench, and the spanner is connected with the control switch of the power element through a brake cable.

In some embodiments, a keyboard tray is connected to a side of the working platform, which is close to the user, and a support pad is connected to the bottom of the keyboard tray, and when the working platform is at the lowest position, the bottom plane of the support pad and the bottom plane of the base are at the same level.

To sum up, compared with the related art, the desktop lifting workbench has the following advantages: the middle parts of two support arms of the lifting arm of the desktop lifting workbench are hinged to be X-shaped, the upper ends of the two support arms are respectively provided with a first sliding part which is in sliding connection with a working platform, the lower ends of the two support arms are respectively provided with a second sliding part which is in sliding connection with a base, so that the two support arms do differential scissors movements in the lifting process of the lifting workbench, the upper ends of the two support arms simultaneously move in opposite directions or simultaneously move in opposite directions, and the lower ends of the two support arms simultaneously move in opposite directions or move in opposite directions; that is, in the lifting process of the lifting workbench, the upper ends and the lower ends of the two support arms are folded towards the center or unfolded towards the two sides at the same time, so that the supporting gravity center of the lifting arm and the gravity center of the load of the working platform are kept unchanged relatively in the whole height adjusting range of the lifting workbench, or the supporting gravity center of the lifting arm and the gravity center of the load of the working platform are kept on the same vertical line all the time, or the supporting gravity center of the lifting arm and the gravity center of the load of the working platform are overlapped and cannot deviate relatively, and the supporting stability of the lifting workbench of the tabletop is good, rollover is avoided, and the safety is high. Furthermore, the first synchronous component and the second synchronous component are arranged, when the working platform is lifted relative to the base, the traction arms of the two synchronous components can enable the two first sliding parts to always keep synchronous movement, and enable the two second sliding parts to always keep synchronous movement, namely, the two synchronous components enable the upper end and the lower end of the first support arm and the lower end of the second support arm to simultaneously move oppositely or reversely, so that the lifting stability of the working platform can be ensured, and the working platform is ensured not to incline in the lifting or descending process and always keeps a horizontal state.

Drawings

Fig. 1 is a schematic structural view of a table top lifting table according to some embodiments of the present application.

Fig. 2 is another angular schematic view of a table top lift table according to some embodiments of the present application.

Fig. 3 is a schematic side view of a table top lifting table according to some embodiments of the present application.

Fig. 4 is a schematic view of a work platform of a desktop lift table in a lowermost position according to some embodiments of the present application.

Fig. 5 is another angular schematic view of a work platform of a desktop lift table in a lowermost position according to some embodiments of the present application.

Fig. 6 is a schematic view of a work platform structure of a desktop lift table according to some embodiments of the present application.

Fig. 7 is a schematic view of a base structure of a table top lifting table according to some embodiments of the present application.

Fig. 8 is a schematic view of a partial cross-sectional structure of a table top lift table according to some embodiments of the present application.

Reference numerals illustrate:

1. the device comprises a working platform, 100, a first sliding rail component, 101, a first sliding part, 102, a base, 103, a first annular limiting groove, 2, a base, 200, a second sliding rail component, 201, a second sliding part, 202, a pull rod, 203, a second annular limiting groove, 3, a lifting arm, 300, a first support arm, 301, a second support arm, 4, a power element, 5, a first synchronous component, 500, a first rotating arm, 501, a first traction arm, 502, a first main shaft, 503, a first connecting seat, 504, a first elastic limiting block, 6, a second synchronous component, 600, a second rotating arm, 601, a second traction arm, 602, a second main shaft, 603, a second connecting seat, 604, a second elastic limiting block, 7 and a spanner.

Detailed Description

First, it should be understood by those skilled in the art that these embodiments are merely for explaining 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 adapt it as desired to suit a particular application.

In the description of the embodiments of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in the embodiments of the present application will be understood by those of ordinary skill in the art in a specific context.

In the examples herein, a first feature "on" or "under" a second feature may be either the first and second features in direct contact, or the first and second features in indirect contact via an intermediary, unless expressly stated and defined otherwise. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

The present application is described in further detail below with reference to the drawings and specific examples.

Referring to fig. 1 to 8, the embodiment of the application discloses a table top lifting workbench, which is also called a table top workbench, a table top lifting table and the like, and structurally comprises a workbench 1, a base 2, a power element 4 and a lifting assembly for connecting the workbench 1 and the base 2 and adjusting the height of the workbench 1 relative to the base 2, wherein the power element 4 is connected between the workbench 1 and the base 2 and is used for providing lifting force for lifting the workbench 1 and counteracting or partially counteracting the bearing of the workbench 1; the work platform 1 is also called a table board, a panel board, etc., and the base 2 is also called a base, a chassis, etc., which is placed on a table top or a table top of the prior art.

In this embodiment, the power element 4 is a gas spring capable of outputting a constant thrust, and the power element 4 outputs a linear thrust, and the direction of the thrust coincides with the axial direction of the power element 4; one end of the power element 4 is rotatably connected with the first support arm 300 and the other end is rotatably connected with the second support arm 301, in other embodiments, one end of the power element 4 is rotatably connected with the working platform 1, and the other end of the power element 4 is rotatably connected with the lifting assembly; or one end of the power element 4 is rotatably connected with the base 2, and the other end of the power element 4 is rotatably connected with the lifting assembly; or one end of the power element 4 is rotatably connected with the working platform 1, and the other end of the power element 4 is rotatably connected with the base 2.

In other embodiments, the power element 4 may be an electric push rod, a linear motor, a hydraulic rod, or other linear driving mechanism.

In this embodiment, the gas spring is specifically a controllable gas spring having a control switch or a valve switch. In order to allow the work platform 1 to be locked to different levels of its travel, the table top lifting work platform further comprises a locking mechanism comprising a wrench 7 connected to the work platform 1, the wrench 7 being connected to the control switch of the power element 4 via a brake cable. The spanner 7 is pulled, a control switch of the driving power element 4 is turned on, the driving power element 4 is unfolded to drive the lifting arm 3 to rotate, and the working platform 1 is lifted to adjust the height.

In this embodiment, as shown in fig. 1, 2, 6 and 8, the upper ends of the two support arms are respectively provided with a first sliding member 101 slidably connected to the working platform 1, and the lower ends of the two support arms are respectively provided with a second sliding member 201 slidably connected to the base 2; in other words, the working platform 1 is slidably connected with two first sliding pieces 101, the base 2 is slidably connected with two second sliding pieces 201, the upper ends of the two support arms are respectively connected with the two first sliding pieces 101, and the lower ends of the two support arms are respectively connected with the two second sliding pieces 201; specifically, the working platform 1 is connected with two groups of first sliding rail assemblies 100 distributed at intervals along the length direction, each group of first sliding rail assemblies 100 is provided with a sliding groove extending along the length direction, first sliding bars are respectively connected in the sliding grooves of the two groups of first sliding rail assemblies 100 in a sliding manner, and the two first sliding bars are arranged in parallel and form two first sliding pieces 101; similarly, the base 2 is connected with two groups of second sliding rail assemblies 200 which are distributed at intervals along the length direction, each group of second sliding rail assemblies 200 is provided with a sliding groove which extends along the length direction, second sliding bars are respectively connected in the sliding grooves of the two groups of second sliding rail assemblies 200 in a sliding manner, and the two second sliding bars are arranged in parallel and form two second sliding pieces 201; in the present embodiment, the two sets of first sliding rail assemblies 100 and the two sets of second sliding rail assemblies 200 are respectively opposite up and down and parallel to each other.

In other embodiments, in order to ensure the sliding stability of the first sliding member 101 and the second sliding member 201, soft friction blocks are connected to the first sliding member 101 and the second sliding member 201, or friction pads are provided on the first sliding rail assembly 100 and the second sliding rail assembly 200, so that the sliding of the first sliding member 101 and the second sliding member 201 is smoother. The two first sliding rail assemblies 100 may be whole sliding rails, but when the two first sliding rails slide to the shortest distance in opposite directions, a certain gap is provided between the two first sliding rails, and the gap may be enough to provide support for the working platform 1. Similarly, the two second sliding rail assemblies 200 may be whole sliding rails, but when the two second sliding rails slide to the shortest distance in opposite directions, a certain gap is provided between the two second sliding rails, and the gap may be enough to provide support for the working platform 1.

In this embodiment, as shown in fig. 1, 2 and 3, the lifting arms 3 are a group, and the lifting arms 3 include a first support arm 300 and a second support arm 301, the first support arm 300 and the second support arm 301 intersect to form an X shape, and the middle parts of the first support arm 300 and the second support arm 301 are hinged by a hinge pin; the upper ends of the two support arms are respectively connected with the two first sliding pieces 101, and the lower ends of the two support arms are respectively connected with the two second sliding pieces 201; when the working platform 1 is adjusted in height relative to the base 2, the two support arms do differential scissors movement, so that the upper ends of the two support arms move oppositely or move back to back at the same time, and the lower ends of the two support arms move oppositely or move back to back at the same time; that is, in the lifting process of the lifting workbench, the upper ends and the lower ends of the two support arms are folded towards the center or unfolded towards the two sides at the same time, so that the supporting gravity center of the lifting arm 3 and the gravity center of the load of the working platform 1 are kept unchanged relatively in the whole height adjusting range of the lifting workbench, or the supporting gravity center of the lifting arm 3 and the gravity center of the load of the working platform 1 are kept on the same vertical line all the time, or the supporting gravity center of the lifting arm 3 and the gravity center of the load of the working platform 1 are overlapped and cannot deviate relatively, and the supporting stability of the lifting workbench of the tabletop is good, rollover is avoided, and the safety is high.

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 connected in a cross rotation manner at a middle position of the first arm 300. In other embodiments, the lifting arms 3 of the lifting assembly may be provided in two, three, etc. and arranged along the width direction of the work platform 1.

In order to synchronize the two first sliders 101 during movement or to synchronize the upper ends of the first arms 300 and the second arms 301 during movement, in this embodiment, as shown in fig. 2 and 6, the table top lifting table further includes a first synchronizing assembly 5 disposed between the two first sliders 101, and the first synchronizing assembly 5 includes two first traction arms 501 that are folded or unfolded simultaneously to the center or both sides, and the two first traction arms 501 are respectively connected to the two first sliders 101 for always maintaining the two first sliders 101 in synchronous movement when the height of the working platform 1 is adjusted with respect to the base 2; that is, when the upper ends of the first arm 300 and the second arm 301 move toward each other or move away from each other, the first synchronizing assembly 5 is linked to move, so that the two first traction arms 501 of the first synchronizing assembly 5 are folded toward the center or unfolded toward both sides at the same time, and the synchronous movement of the two first traction arms 501 ensures the synchronous sliding of the two first sliding members 101.

In this embodiment, as shown in fig. 6, the first synchronization assembly 5 includes a first rotating arm 500 rotatably connected to the working platform 1, and two ends of the first rotating arm 500 are rotatably connected to two first traction arms 501 respectively; when the working platform 1 is lifted to enable the two first sliding pieces 101 to move towards each other, the two first sliding pieces 101 are linked with the two first traction arms 501 to fold towards the center and enable the first rotating arm 500 to rotate around the rotating center of the first traction arms in the first direction; when the working platform 1 descends to enable the two first sliding pieces 101 to move oppositely, the two first sliding pieces 101 are linked with the two first traction arms 501 to be unfolded to two sides, and the first rotating arm 500 is rotated around the rotating center of the first traction arms along the second direction; the first direction is opposite to the second direction; that is, the first direction is clockwise and the second direction is counter-clockwise, and vice versa.

In the above embodiment, the bottom of the working platform 1 is connected with the base 102, the base 102 is connected with the first spindle 502, the center of the first rotating arm 500 is rotatably connected to the first spindle 502, the inner ends of the two first traction arms 501 are respectively hinged with the two ends of the first rotating arm 500, and the two first traction arms 501 are symmetrically arranged about the center of the first spindle 502.

In some embodiments, in order to make the lifting of the working platform 1 smoother and to keep the two second sliders 201 synchronous during the movement, or to keep the lower ends of the first arm 300 and the second arm 301 synchronous during the movement, in this embodiment, as shown in fig. 2 and 7, the desktop lifting platform further comprises a second synchronizing assembly 6 disposed between the two second sliders 201, and the second synchronizing assembly 6 comprises two second traction arms 601 that are folded toward the center or unfolded toward the two sides simultaneously, and the two second traction arms 601 are respectively connected to the two second sliders 201, for keeping the two second sliders 201 always synchronous during the height adjustment of the working platform 1 relative to the base 2; that is, when the lower ends of the first arm 300 and the second arm 301 move toward each other or move away from each other, the second synchronizing assembly 6 is linked to move, so that the two second traction arms 601 of the second synchronizing assembly 6 are folded toward the center or unfolded toward both sides simultaneously, and the synchronous movement of the two second traction arms 601 ensures the synchronous sliding of the two second sliding members 201.

In this embodiment, as shown in fig. 7, the second synchronizing assembly 6 includes a second rotating arm 600 rotatably connected to the base 2, and two ends of the second rotating arm 600 are rotatably connected to two second traction arms 601, respectively; when the working platform 1 is lifted to enable the two second sliding pieces 201 to move towards each other, the two second sliding pieces 201 link the two second traction arms 601 to fold towards the center and enable the second rotating arm 600 to rotate around the rotating center along the first direction; when the working platform 1 descends to enable the two second sliding pieces 201 to move oppositely, the two second sliding pieces 201 are linked with the two second traction arms 601 to be unfolded to two sides, and the second rotating arm 600 rotates around the rotating center of the second traction arms along the second direction; the first direction is opposite to the second direction; that is, the first direction is clockwise and the second direction is counter-clockwise, and vice versa.

In the above embodiment, the bottom of the base 2 is connected with the pull rod 202, the pull rod 202 is connected with the second spindle 602, the center of the second rotating arm 600 is rotatably connected to the second spindle 602, the inner ends of the two second traction arms 601 are respectively hinged with two ends of the second rotating arm 600, and the two second traction arms 601 are symmetrically arranged about the center of the second spindle 602.

As is well known, when the first arm 300 and the second arm 301 of the lifting arm 3 perform differential scissors movements, the first slider 101 and the second slider 201 connected to the first arm 300 and the second arm 301 perform translational movements while rotating circumferentially around their axes by an angle; therefore, in the present embodiment, as shown in fig. 2, 7 and 5, the two first traction arms 501 are rotatably connected to the two first sliding members 101, respectively, and the two first traction arms 501 are axially limited on the two first sliding members 101, respectively; the two second traction arms 601 are respectively and rotatably connected with the two second sliding pieces 201, and the two second traction arms 601 are respectively and axially limited on the two second sliding pieces 201. Specifically, the two first sliding parts 101 are respectively connected with a first connecting seat 503 in a rotating manner along the circumferential direction, and the two first sliding parts 101 are respectively provided with a first annular limiting groove 103 which corresponds to the two first connecting seats 503 and is concave inwards; each first connecting seat 503 is connected with a first elastic limiting block 504, the first elastic limiting blocks 504 are embedded in the first annular limiting grooves 103, and the two first connecting seats 503 are respectively and rotatably connected with the two first traction arms 501; the two second sliding pieces 201 are respectively connected with a second connecting seat 603 in a rotating way along the circumferential direction, and the two second sliding pieces 201 are respectively provided with a second annular limiting groove 203 which corresponds to the two second connecting seats 603 and is concave inwards; each second connecting seat 603 is connected with a second elastic limiting block 604, the second elastic limiting blocks 604 are embedded in the second annular limiting grooves 203, and the two second connecting seats 603 are respectively and rotatably connected with the two second traction arms 601. The elastic limiting block is embedded in the annular limiting groove to realize axial limiting between the connecting seat and the sliding piece. Thereby making the synchronicity of the first synchronization component 5 and the second synchronization component 6 more stable.

In the above embodiment, the first synchronization assembly 5 and the second synchronization assembly 6 have the same structure and are symmetrically arranged with respect to the height center of the lifting table; in other embodiments, for ensuring synchronous movement of the upper end of the first arm 300 and the upper end of the second arm 301, and of the lower end of the first arm 300 and the lower end of the second arm 301; the synchronous component can also have other structures, for example, a guide seat is arranged at the bottom of the working platform, two traction arms are parallel to each other and are in sliding fit with the guide seat, and a certain friction force is arranged between the guide seat and the two traction arms. When the two sliding parts or the first sliding rod and the second sliding rod move oppositely, the two traction arms are close to or folded on the guide seat, and when the two sliding parts move oppositely, the two traction arms are unfolded towards the two sides of the guide seat along the sliding direction, and constant friction force between the guide seat and the two traction arms is used for ensuring synchronous movement of the two sliding parts; or the synchronous mechanism can also be a parallelogram rotating structure formed by connecting rods, two opposite rotating points are respectively connected with the two sliding parts, the other two rotating points are limited to slide in the direction perpendicular to the sliding direction of the two sliding parts, and the two opposite rotating points of the parallelogram rotating structure can be folded inwards or unfolded outwards simultaneously.

In some embodiments, in order to facilitate placement of the keyboard, a keyboard support is connected to a side of the working platform 1 close to the user, a support pad is connected to the bottom of the keyboard support, and when the working platform 1 is at the lowest position, the bottom plane of the support pad and the bottom plane of the base 2 are at the same level. Therefore, when the working platform 1 is at the lowest position, the supporting pad at the bottom of the keyboard support is contacted with the ground or the table surface, so that the stability of standing of the tabletop lifting working platform is better.

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 "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or component must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the description of the present application, descriptions of the terms "one embodiment," "some embodiments," "in this embodiment," "specific examples," or "some examples," etc., mean that a particular feature, mechanism, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, mechanisms, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present application should be covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a desktop elevating platform which characterized in that: it comprises

A working platform;

a base placed on an existing desktop or counter top; and

connect work platform with the base is used for adjusting work platform for the lifting unit of base height, lifting unit includes at least a set of lifting arm, and every group lifting arm includes that two at least middle parts are articulated the support arm that is X shape: the upper ends of the first support arm and the second support arm are respectively provided with a first sliding part which is in sliding connection with the working platform, and the lower ends of the two support arms are respectively provided with a second sliding part which is in sliding connection with the base; the desktop lifting workbench further comprises a lifting device,

the first synchronous component is arranged between the two first sliding pieces and comprises two first traction arms which are folded towards the center or unfolded towards two sides at the same time, and the two first traction arms are respectively connected with the two first sliding pieces and are used for enabling the two first sliding pieces to always keep synchronous movement when the height of the working platform is adjusted relative to the base;

the second synchronous component is arranged between the two second sliding parts and comprises two second traction arms which are folded towards the center or unfolded towards two sides at the same time, and the two second traction arms are respectively connected with the two second sliding parts and are used for enabling the two second sliding parts to always keep synchronous movement when the height of the working platform is adjusted relative to the base;

and the power element is connected between the working platform and the base and is used for providing lifting force for the lifting of the working platform.

2. The desktop lift table of claim 1, wherein: the working platform is connected with two groups of first sliding rail assemblies which are distributed at intervals along the length direction, the two groups of first sliding rail assemblies are respectively connected with first sliding rods in a sliding manner, and the two first sliding rods are arranged in parallel and form two first sliding pieces; the base is connected with two groups of second sliding rail assemblies which are distributed at intervals along the length direction, the two groups of second sliding rail assemblies are respectively connected with second sliding rods in a sliding manner, and the two second sliding rods are arranged in parallel and form two second sliding pieces.

3. The desktop lift table of claim 1, wherein: the first synchronous assembly comprises a first rotating arm rotatably connected to the working platform, and two ends of the first rotating arm are respectively and rotatably connected with the two first traction arms; when the working platform ascends to enable the two first sliding pieces to move in opposite directions, the two first sliding pieces are linked with the two first traction arms to fold towards the center and enable the first rotating arm to rotate around the rotating center of the first rotating arm along the first direction; when the working platform descends to enable the two first sliding parts to move oppositely, the two first sliding parts are linked with the two first traction arms to be unfolded to two sides, and the first rotating arm rotates around the rotating center of the first traction arm along the second direction; the first direction is opposite to the second direction.

4. A desktop lift table as in claim 3 wherein: the second synchronous component comprises a second rotating arm which is rotatably connected to the base, and two ends of the second rotating arm are respectively and rotatably connected with the two second traction arms; when the working platform ascends to enable the two second sliding pieces to move in opposite directions, the two second sliding pieces are linked with the two second traction arms to fold towards the center, and the second rotating arms rotate around the rotating centers of the second traction arms along the first direction; when the working platform descends to enable the two second sliding parts to move oppositely, the two second sliding parts are linked with the two second traction arms to be unfolded to two sides, and the second rotating arm rotates around the rotating center of the second rotating arm along a second direction; the first direction is opposite to the second direction.

5. The desktop lift table of claim 4, wherein: the two first traction arms are respectively and rotatably connected with the two first sliding pieces, and are respectively and axially limited on the two first sliding pieces; the two second traction arms are respectively and rotatably connected with the two second sliding pieces, and the two second traction arms are respectively and axially limited on the two second sliding pieces.

6. The desktop lift table of claim 5, wherein: the two first sliding pieces are respectively connected with a first connecting seat in a rotating manner along the circumferential direction, and are respectively provided with first annular limiting grooves which correspond to the two first connecting seats and are concave inwards; each first connecting seat is connected with a first elastic limiting block, the first elastic limiting blocks are embedded in the first annular limiting grooves, and the two first connecting seats are respectively and rotatably connected with the two first traction arms; the two second sliding pieces are respectively connected with a second connecting seat in a rotating manner along the circumferential direction, and are respectively provided with a second annular limiting groove which corresponds to the two second connecting seats and is concave inwards; each second connecting seat is connected with a second elastic limiting block, the second elastic limiting blocks are embedded in the second annular limiting grooves, and the two second connecting seats are respectively and rotatably connected with the two second traction arms.

7. The desktop lift table of claim 4, wherein: the bottom of the working platform is connected with a first main shaft, the first rotating arm is rotatably connected to the first main shaft, and the two first traction arms are symmetrically arranged about the center of the first main shaft; the bottom of base is connected with the second main shaft, the second rotating arm rotatable coupling is in on the second main shaft, two the second traction arm is with the center symmetry setting of second main shaft.

8. The desktop lift table of claim 1, wherein: the power element is a gas spring, one end of the power element is rotatably connected with the working platform or the base, and the other end of the power element is rotatably connected with the lifting assembly; or one end of the power element is connected with the working platform, and the other end of the power element is connected with the base; or one end of the power element is rotatably connected with the first support arm, and the other end of the power element is rotatably connected with the second support arm.

9. The desktop lift table of claim 8, wherein: the desktop lifting workbench further comprises a locking mechanism, wherein the locking mechanism comprises a spanner connected to the workbench, and the spanner is connected with the control switch of the power element through a brake cable.

10. The desktop lift table of claim 1, wherein: one side of the working platform, which is close to a user, is connected with a keyboard support, the bottom of the keyboard support is connected with a supporting pad, and when the working platform is at the lowest position, the bottom plane of the supporting pad and the bottom plane of the base are at the same horizontal height.