CN221228929U - Lifting workbench - Google Patents

Abstract

The utility model discloses a lifting workbench, which comprises a working platform, a base, a lifting component, two groups of synchronous components and a power element. The lifting component comprises at least one group of lifting arms, and each group of lifting arms comprises at least two support arms whose middle parts are hinged and X-shaped; the upper ends of the two support arms are respectively provided with first sliding members slidably connected to the working platform, and the lower ends of the two support arms are respectively provided with second sliding members slidably connected to the base; a first synchronous component is connected between the two first sliding members, and a second synchronous component is connected between the two second sliding members; the threaded cooperation of the synchronous component lead screw and the transmission nut realizes the synchronization of movement between the two first sliding members and between the two second sliding members, and the lifting workbench is not easy to tip over, has good supporting stability, and is stable and smooth in lifting.

Description

Lifting workbench

Technical Field

The present application relates to the technical field of computer carrying equipment, and specifically to a lifting workbench.

Background technique

With the continuous development of society, flat panel displays, tablet computers, etc. are becoming more and more popular in ordinary households, and the corresponding brackets have emerged. The desktop workbench for carrying tablet computers in the related technology is also called a lifting workbench, a lifting work table, or a desktop computer bracket, etc. It is generally placed on a desktop or tabletop, and the height can be adjusted when in use to meet the needs of users for a healthy working method of standing or alternating between standing and sitting.

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

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

Utility Model Content

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

The technical solution of the present application is to provide a lifting workbench with the following structure:

Work platform;

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

A lifting assembly is connected between 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, each set of lifting arms includes at least two arms hinged in the middle to form an X shape: a first arm and a second arm, the upper ends of the two arms are respectively provided with a first sliding member slidably connected to the working platform, and the lower ends of the two arms are respectively provided with a second sliding member slidably connected to the base; the lifting workbench also includes,

Two groups of synchronization components: a first synchronization component and a second synchronization component;

The first synchronization component comprises an upper base and two first screw rods, the upper base is connected to the working platform, and the upper base is rotatably connected to two first transmission nuts with parallel axes and axially limited on the upper base, the two first screw rods are respectively threadedly connected to the two first transmission nuts, and the two first screw rods are respectively connected to the two first sliding members;

The second synchronization component includes a lower base and two second screw rods, the lower base is connected to the base, and the lower base is rotatably connected to two second transmission nuts with parallel axes and axially limited on the lower base, the two second screw rods are respectively threadedly connected to the two second transmission nuts, and the two second screw rods are respectively connected to the two second sliding members;

A power element is connected between the working platform and the base, and is used to provide a lifting force for the working platform to rise.

In some embodiments, two first fixing seats are connected to the upper base, and the two first fixing seats are each provided with a first through hole, and two first transmission nuts are respectively connected to the two first through holes; two second fixing seats are connected to the lower base, and the two second fixing seats are each provided with a second through hole, and two second transmission nuts are respectively connected to the two second through holes.

In some embodiments, the thread directions of the two first screw rods are set to opposite directions and the rotation speeds of the two first transmission nuts are set to the same speed; the thread directions of the two second screw rods are set to opposite directions and the rotation speeds of the two second transmission nuts are set to the same speed.

In some embodiments, the outer ends of the two first screw rods are respectively connected to the first connecting seats, and the two first connecting seats are respectively rotatably connected and axially limited on the two first sliding members; the outer ends of the two second screw rods are respectively connected to the second connecting seats, and the two second connecting seats are respectively rotatably connected and axially limited on the two second sliding members.

In some embodiments, the two first sliding members are respectively provided with first annular limit grooves corresponding to the two first connecting seats and are concave; each of the first connecting seats is connected to a first elastic limit block, and the first elastic limit block is embedded in the first annular limit groove; the two second sliding members are respectively provided with second annular limit grooves corresponding to the two second connecting seats and are concave; each of the second connecting seats is connected to a second elastic limit block, and the second elastic limit block is embedded in the second annular limit groove.

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

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 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 arm and the other end is rotatably connected to the second arm.

In some embodiments, the lifting work platform further includes a locking mechanism, and the locking mechanism includes a wrench connected to the work platform, and the wrench is connected to the control switch of the power element through a brake line.

In some embodiments, a keyboard tray is connected to the side of the work platform close to the user, and a support pad is connected to the bottom of the keyboard tray. When the work platform is in the lowest position, the bottom plane of the support pad is at the same level as the bottom plane of the base.

In summary, compared with the related art, the lifting work platform of the present application has the following advantages: the middle parts of the two support arms of the lifting arm of the lifting work platform are hinged in an X shape, and the upper ends of the two support arms are respectively provided with first sliding members slidably connected to the work platform, and the lower ends of the two support arms are respectively provided with second sliding members slidably connected to the base, so that the two support arms perform scissor-difference motion during the lifting process of the lifting work platform, so that the upper ends of the two support arms move toward each other or move away from each other at the same time, and the lower ends of the two support arms move toward each other or move away from each other at the same time; that is, during the lifting process of the lifting work platform, the upper ends and lower ends of the two support arms are simultaneously retracted toward the center or simultaneously expanded to both sides, so that within the entire height adjustment range of the lifting work platform, the support center of gravity of the lifting arm and the center of gravity of the load of the work platform remain relatively unchanged, or the support center of gravity of the lifting arm is always maintained on the same vertical line with the load center of gravity of the work platform, or the support center of gravity of the lifting arm coincides with the load center of gravity of the work platform and will not shift relatively, so that the support stability of the lifting work platform is good, and rollover is avoided, and the safety is high. Furthermore, the synchronization component adopts the combination of a lead screw and a transmission nut. When the sliding member drives the lead screw to move, the transmission nut can rotate in the circumferential direction. Conversely, limiting the rotation speed of the transmission nut can limit the movement speed of the lead screw, thereby keeping the two groups of lead screws of the synchronization component in synchronous motion. Therefore, with the setting of the two groups of synchronization components, when the working platform is raised or lowered relative to the base, the traction or restriction of the two groups of synchronization components can keep the two first sliding members and the two second sliding members in synchronous motion at all times, that is, the two groups of synchronization components make the upper and lower ends of the first arm and the second arm move toward or away from each other at the same time with the same displacement. This not only ensures the stability of the lifting and lowering of the working platform, but also ensures that the working platform will not tilt during the rising or falling process and always remains in a horizontal state.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of a lifting work platform according to some embodiments of the present application.

FIG. 2 is a schematic diagram of a lifting work platform from another angle according to some embodiments of the present application.

FIG. 3 is a schematic diagram of the side structure of a lifting work platform according to some embodiments of the present application.

FIG. 4 is a schematic cross-sectional structural diagram of a lifting work platform according to some embodiments of the present application.

FIG. 5 is an enlarged structural schematic diagram of portion A in FIG. 4 .

FIG. 6 is an enlarged structural schematic diagram of portion B in FIG. 4 .

FIG. 7 is a schematic diagram of a lifting work platform in a lowest position according to some embodiments of the present application.

FIG. 8 is a schematic diagram showing a lifting workbench according to some embodiments of the present application, in which the working platform is at the lowest position at another angle.

FIG. 9 is a schematic diagram of the working platform structure of a lifting workbench according to some embodiments of the present application.

FIG. 10 is a schematic diagram of the base structure of a lifting workbench according to some embodiments of the present application.

FIG. 11 is a schematic diagram of a partial cross-sectional structure of a lifting work platform according to some embodiments of the present application.

Description of reference numerals:

1. working platform, 100. first slide rail assembly, 101. first sliding member, 102. first annular limiting groove, 2. base, 200. second slide rail assembly, 201. second sliding member, 202. second annular limiting groove, 3. lifting arm, 300. first support arm, 301. second support arm, 4. power element, 5. first synchronization assembly, 500. upper base, 501. first screw rod, 502. first transmission nut, 503. first connecting seat, 504. first elastic limiting block, 505. first through hole, 506. first bearing, 507. first fixed seat, 6. second synchronization assembly, 600. lower base, 601. second screw rod, 602. second transmission nut, 603. second connecting seat, 604. second elastic limiting block, 605. second through hole, 606. second bearing, 607. second fixed seat, 7. wrench.

Detailed ways

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

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

In the embodiments of the present application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

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

Referring to Figures 1 to 11, an embodiment of the present application discloses a lifting workbench, which is also called a desktop workbench, a desktop lifting table, etc. Its structure includes a work platform 1, a base 2, a power element 4 and a lifting component connecting the work platform 1 and the base 2 for adjusting the height of the work platform 1 relative to the base 2. The power element 4 is connected between the work platform 1 and the base 2 to provide a lifting force for the work platform 1 to rise and to offset or partially offset the load-bearing capacity of the work platform 1; the work platform 1 is also called a table top, a storage panel, etc., and the base 2 is also called a base 2, a chassis, etc., and the base 2 is placed on a desktop or tabletop in the prior art.

In this embodiment, the power element 4 is a gas spring that can output a constant thrust, and the power element 4 outputs a linear thrust, and the thrust direction coincides with the axial direction of the power element 4. One end of the power element 4 is rotatably connected to the first arm 300 of the lifting arm 3, and the other end is rotatably connected to the second arm 301 of the lifting arm 3; in other embodiments, one end of the power element 4 is rotatably connected to the working platform 1, and the other end of the power element 4 is rotatably connected to the lifting assembly; one end of the power element 4 is rotatably connected to the base 2, and the other end of the power element 4 is rotatably connected to the lifting assembly; or one end of the power element 4 is rotatably connected to the working platform 1, and the other end of the power element 4 is rotatably connected to the base 2, wherein the other end of the power element 4 is rotatably connected to the lifting assembly, which means that the other end of the power element 4 is rotatably connected to the first arm 300 or the second arm 301 of the lifting assembly.

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

In this embodiment, the gas spring is a controllable gas spring with a control switch or a valve switch. In order to lock the working platform 1 to different heights of its travel, the lifting work platform also includes a locking mechanism, which includes a wrench 7 connected to the working platform 1, and the wrench 7 is connected to the control switch of the power element 4 through a brake line. When the wrench 7 is pulled, the control switch of the power element 4 is turned on, and the power element 4 is unfolded to drive the lifting arm 3 to rotate so that the working platform 1 rises to adjust the height.

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

In other embodiments, in order to ensure the smooth sliding 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 set on the first slide rail assembly 100 and the second slide rail assembly 200, so that the first sliding member 101 and the second sliding member 201 can slide more smoothly. The two first slide rail assemblies 100 can also be whole slide rails, but when the two first slide bars slide toward each other to the shortest distance, there is a certain gap between the two, and the gap is sufficient to provide support for the working platform 1. Similarly, the two second slide rail assemblies 200 can also be whole slide rails, but when the two second slide bars slide toward each other to the shortest distance, there is a certain gap between the two, and the gap is sufficient to provide support for the working platform 1.

In this embodiment, as shown in FIGS. 1, 2 and 3, the lifting arm 3 is a group, and the lifting arm 3 includes a first arm 300 and a second arm 301, the first arm 300 and the second arm 301 are crossed in an X shape and are hinged in the middle by a hinge pin; the upper ends of the two arms are respectively connected to the two first sliding members 101, and the lower ends of the two arms are respectively connected to the two second sliding members 201; when the height of the working platform 1 is adjusted relative to the base 2, the two arms perform a scissor difference motion, so that the upper ends of the two arms move toward each other or move away from each other at the same time, and at the same time, the two arms move in a scissor-like manner. The lower ends move towards or away from each other; that is, during the lifting process of the lifting work platform, the upper and lower ends of the two arms are simultaneously retracted toward the center or simultaneously expanded to both sides, so that within the entire height adjustment range of the lifting work platform, the support center of gravity of the lifting arm 3 and the center of gravity of the load of the working platform 1 remain relatively unchanged, or the support center of gravity of the lifting arm 3 is always maintained on the same vertical line as the load center of gravity of the working platform 1, or the support center of gravity of the lifting arm 3 coincides with the load center of gravity of the working platform 1 and will not shift relatively, thereby ensuring good support stability of the lifting work platform, avoiding rollover, and having high safety.

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-rotatably connected to 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, etc., and are arranged along the width direction of the working platform 1.

In order to keep the two first sliding members 101 synchronized during movement, or to keep the upper end of the first arm 300 and the upper end of the second arm 301 synchronized during movement, in this embodiment, as shown in Figures 2, 4, 5, 6, 9 and 10, the lifting workbench also includes two groups of synchronization components: a first synchronization component 5 and a second synchronization component 6; wherein the first synchronization component 5 includes an upper base 500 and two first screw rods 501, the upper base 500 is connected to the working platform 1, and the upper base 500 is rotatably connected to two first transmission nuts 502 with parallel axes and axially limited on the upper base 500, the two first screw rods 501 are respectively threadedly connected to the two first transmission nuts 502, and the two first screw rods 501 are respectively connected to the two first sliding members 101; the second synchronization component 6 includes a lower base 600 and two second screw rods 601, the lower base 600 is connected to the base 2, and the lower base 600 is rotatably connected to two first transmission nuts 502 with parallel axes and axially limited on the upper base 500. A second transmission nut 602 is axially limited on the lower base 600, and the two second screw rods 601 are respectively threadedly connected to the two second transmission nuts 602, and the two second screw rods 601 are respectively connected to the two second sliding members 201; the synchronization component adopts the cooperation of the screw rod and the transmission nut. When the sliding member drives the screw rod to move, the transmission nut can rotate in the circumferential direction. Conversely, limiting the rotation speed of the transmission nut can limit the movement speed of the screw rod, so that the two groups of screw rods of the synchronization component maintain synchronous movement; therefore, the setting of the two groups of synchronization components, when the working platform is raised or lowered relative to the base, the traction or restriction of the two groups of synchronization components can make the two first sliding members 101 and the two second sliding members 201 always maintain synchronous movement, that is, the two groups of synchronization components make the upper and lower ends of the first arm 300 and the second arm 301 move toward or away from each other at the same time with the same displacement, which can not only ensure the stability of the lifting and lowering of the working platform, but also ensure that the working platform will not tilt during the rising or falling process and always maintain a horizontal state.

In this embodiment, as shown in Figures 2, 9 and 10, when the working platform 1 rises relative to the base 2, the first arm 300 and the second arm 301 drive the two first screw rods 501 to move toward each other, and at the same time, the two second screw rods 601 are linked to move toward each other and close together; conversely, when the working platform 1 descends relative to the base 2, the first arm 300 and the second arm 301 drive the two first screw rods 501 to move away from each other, and at the same time, the two second screw rods 601 are linked to move away from each other and spread out; because the first synchronous component 5 and the second synchronous component 6 both use the threaded cooperation of the screw rod and the transmission nut to keep the movements of the two first screw rods 501 and the two second screw rods 601 synchronized, which not only ensures the stability of the lifting and lowering of the working platform 1, but also ensures that the working platform 1 will not tilt during the rising or falling process and always maintains a horizontal state.

Specifically in the embodiment, referring to Figures 5, 6, 9 and 10, two first fixed seats 507 are connected to the upper base 500, and the two first fixed seats 507 are each provided with a first through hole 505, and two first transmission nuts 502 are respectively connected to the two first through holes 505, and the two first transmission nuts 502 are both connected to the inner wall of the first through hole 505 through a first bearing 506; two second fixed seats 607 are connected to the lower base 600, and the two second fixed seats 607 are each provided with a second through hole 605, and two second transmission nuts 602 are respectively connected to the two second through holes 605, and the two second transmission nuts 602 are both connected to the inner wall of the second through hole 605 through a second bearing 606.

In this embodiment, in order to ensure the stability and synchronization of the translational motion of the first screw rod 501 and the second screw rod 601, the thread directions of the two first screw rods 501 are set to be opposite and the rotation speeds of the two first transmission nuts 502 are set to the same rotation speed; the thread directions of the two second screw rods 601 are set to be opposite and the rotation speeds of the two second transmission nuts 602 are set to the same rotation speed. In this way, when the two first screw rods 501 move toward or away from each other, the rotation directions of the two first transmission nuts 502 are the same, which facilitates the control of the rotation speed. The first bearing 506 parameters of the first transmission nut 502 can be set or the same friction force can be applied to the first transmission nut 502 to ensure that the rotation speeds of the two first transmission nuts 502 are the same. Similarly, when the two second screw rods 601 move toward or away from each other, the rotation directions of the two second transmission nuts 602 are the same, which facilitates the control of the rotation speed. The second bearing 606 parameters of the second transmission nut 602 can be set or the same friction force can be applied to the second transmission nut 602 to ensure that the rotation speeds of the two second transmission nuts 602 are the same.

As is well known, when the first arm 300 and the second arm 301 of the lifting arm 3 perform scissor-type motion, the first sliding member 101 and the second sliding member 201 connected to the first arm 300 and the second arm 301 perform translational motion while rotating around their own axes in the circumferential direction at the same time; therefore, in this embodiment, as shown in Figures 2, 4, 5, 6, 9, 10 and 11, the outer ends of the two first screw rods 501 are respectively connected to the first connecting seats 503, and the two first connecting seats 503 are respectively rotatably connected and axially limited on the two first sliding members 101; the outer ends of the two second screw rods 601 are respectively connected to the second connecting seats 603, and the two second connecting seats 603 are respectively rotatably connected and axially limited on the two second sliding members 201. Specifically, the two first sliding members 101 are respectively provided with first annular limiting grooves 102 corresponding to the two first connecting seats 503 and concave therein; each first connecting seat 503 is connected with a first elastic limiting block 504, which is embedded in the first annular limiting groove 102; the two second sliding members 201 are respectively provided with second annular limiting grooves 202 corresponding to the two second connecting seats 603 and concave therein; each second connecting seat 603 is connected with a second elastic limiting block 604, which is embedded in the second annular limiting groove 202. The elastic limiting block is embedded in the annular limiting groove to realize the axial limitation between the connecting seat and the sliding member, so as to make the synchronization of the first synchronous assembly 5 and the second synchronous assembly 6 more stable.

In the above embodiment, the first synchronous component 5 and the second synchronous component 6 have the same structure and are symmetrically arranged about the height center of the lifting workbench; similarly, according to the height position of the rotating shaft in the middle of the lifting arm 3, the size of the first synchronous component 5 and the second synchronous component 6 can be adjusted to adapt to the synchronous movement of the two first sliding members 101 and the two second sliding members 201.

In some embodiments, in order to facilitate the placement of the keyboard, a keyboard tray is connected to the side of the work platform 1 close to the user, and a support pad is connected to the bottom of the keyboard tray. When the work platform 1 is at the lowest position, the bottom plane of the support pad is at the same horizontal height as the bottom plane of the base 2. In this way, when the work platform 1 is at the lowest position, the support pad at the bottom of the keyboard tray is in contact with the ground or table top, which makes the standing stability of the lifting workbench 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 "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.

In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" etc. means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

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

Claims (9)

1. A lifting workbench, characterized in that: it includes Work platform; A base that sits on an existing table or countertop; and A lifting assembly is connected between 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, each set of lifting arms includes at least two arms hinged in the middle to form an X shape: a first arm and a second arm, the upper ends of the two arms are respectively provided with a first sliding member slidably connected to the working platform, and the lower ends of the two arms are respectively provided with a second sliding member slidably connected to the base; the lifting workbench also includes, Two groups of synchronization components: a first synchronization component and a second synchronization component; The first synchronization component comprises an upper base and two first screw rods, the upper base is connected to the working platform, and the upper base is rotatably connected to two first transmission nuts with parallel axes and axially limited on the upper base, the two first screw rods are respectively threadedly connected to the two first transmission nuts, and the two first screw rods are respectively connected to the two first sliding members; The second synchronization component includes a lower base and two second screw rods, the lower base is connected to the base, and the lower base is rotatably connected to two second transmission nuts with parallel axes and axially limited on the lower base, the two second screw rods are respectively threadedly connected to the two second transmission nuts, and the two second screw rods are respectively connected to the two second sliding members; A power element is connected between the working platform and the base, and is used to provide a lifting force for the working platform to rise. 2. The lifting workbench according to claim 1 is characterized in that: two first fixed seats are connected to the upper base, the two first fixed seats are each provided with a first through hole, and the two first through holes are respectively connected to two first transmission nuts; two second fixed seats are connected to the lower base, the two second fixed seats are each provided with a second through hole, and the two second through holes are respectively connected to two second transmission nuts. 3. The lifting workbench according to claim 2 is characterized in that: the thread directions of the two first screw rods are set to be opposite and the rotation speeds of the two first transmission nuts are set to the same speed; the thread directions of the two second screw rods are set to be opposite and the rotation speeds of the two second transmission nuts are set to the same speed. 4. The lifting workbench according to claim 3 is characterized in that: the outer ends of the two first screw rods are respectively connected to the first connecting seats, and the two first connecting seats are respectively rotatably connected and axially limited on the two first sliding members; the outer ends of the two second screw rods are respectively connected to the second connecting seats, and the two second connecting seats are respectively rotatably connected and axially limited on the two second sliding members. 5. The lifting workbench according to claim 4 is characterized in that: the two first sliding members are respectively provided with first annular limit grooves corresponding to the two first connecting seats and are concave; each of the first connecting seats is connected to a first elastic limit block, and the first elastic limit block is embedded in the first annular limit groove; the two second sliding members are respectively provided with second annular limit grooves corresponding to the two second connecting seats and are concave; each of the second connecting seats is connected to a second elastic limit block, and the second elastic limit block is embedded in the second annular limit groove. 6. The lifting workbench according to claim 1 is characterized in that: the working platform is connected with two groups of first slide rail assemblies distributed at intervals along the length direction, and the two groups of the first slide rail assemblies are respectively slidably connected with first slide rods, and the two first slide rods are arranged in parallel to form two first sliding parts; the base is connected with two groups of second slide rail assemblies distributed at intervals along the length direction, and the two groups of the second slide rail assemblies are respectively slidably connected with second slide rods, and the two second slide rods are arranged in parallel to form two second sliding parts. 7. The lifting workbench according to claim 1 is 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 one end of the power element is rotatably connected to the first arm and the other end is rotatably connected to the second arm. 8. The lifting work platform according to claim 7 is characterized in that: the lifting work platform also includes a locking mechanism, the locking mechanism includes a wrench connected to the work platform, and the wrench is connected to the control switch of the power element through a brake line. 9. The lifting workbench according to claim 1 is characterized in that a keyboard tray is connected to the side of the work platform close to the user, and a support pad is connected to the bottom of the keyboard tray. When the work 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.