Tabletop lifting workbench

Abstract

The utility model discloses a desktop lifting workbench, which comprises a working platform, a base and a lifting assembly, the lifting assembly comprises at least two groups of lifting arms, each group of lifting arms comprises two support arms, the middle parts of the two support arms are hinged to form an X shape, the upper ends of the two support arms are matched on the working platform in a sliding manner, and the lower ends of the two support arms are matched on the base in a sliding manner; the working platform or the base is provided with at least one synchronous assembly. The synchronous assembly comprises a first pull rod, a second pull rod and a swing arm mechanism. A first traction arm and a second traction arm of the swing arm mechanism are rotationally connected with the first pull rod and the second pull rod respectively; the first pull rod is connected with the first ends of the two first supporting arms of the two sets of lifting arms, and the second pull rod is connected with the first ends of the two second supporting arms of the two sets of lifting arms. According to the table top lifting workbench, the lifting assembly is good in structural stability, high in supporting capacity, good in stability during height adjustment, not prone to shaking and good in user experience feeling.

Description

Technical Field

[0001] The present application relates to the technical field of computer carrying equipment, and in particular to a desktop lifting workbench. Background Art

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

[0003] A lifting workbench of related technology, such as the lifting workbench disclosed in the patent application with publication number CN117481455A previously applied by the applicant of this case, has a structure including a working platform, a base, and at least one group of lifting arms, each group of lifting arms including at least two support arms hinged in the middle to form an X-shape; the upper ends of the two support arms are respectively provided with first sliding members slidably connected to the 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 synchronization component located at the bottom of the working platform and protruding downward is connected between the two first sliding members, and a second synchronization component located on the base is connected between the two second sliding members; the synchronization component uses two synchronously rotating traction arms to synchronize the movements between the two first sliding members and between the two second sliding members.

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

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

[0006] The technical solution of the present application is to provide a desktop lifting workbench with the following structure:

[0007] Work platform;

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

[0009] A lifting assembly connected to the working platform and the base for adjusting the height of the working platform relative to the base, the lifting assembly comprising two sets of lifting arms, each set of lifting arms comprising two arms hinged in the middle in an X shape: a first arm and a second arm, and the first end of the first arm and the first end of the second arm are respectively slidably connected to the working platform, and the second end of the first arm and the second end of the second arm are respectively slidably connected to the base;

[0010] At least one synchronization component, the synchronization component includes a first pull rod, a second pull rod and a swing arm mechanism, the swing arm mechanism includes a rotating arm rotatably connected to the working platform or the base, and the two ends of the rotating arm are respectively rotatably connected to the first traction arm and the second traction arm which simultaneously move toward the center or simultaneously expand to both sides, the first traction arm and the second traction arm are respectively rotatably connected to the first pull rod and the second pull rod; the first pull rod is respectively connected to the first end of the first support arm of the two groups of lifting arms, and the second pull rod is respectively connected to the first end of the second support arm of the two groups of lifting arms; or the first pull rod is respectively connected to the second end of the first support arm of the two groups of lifting arms, and the second pull rod is respectively connected to the second end of the second support arm of the two groups of lifting arms.

[0011] In some embodiments, a first slide groove is provided on the working platform, and the first end of the first arm and the first end of the second arm of each group of lifting arms are respectively connected to a first slider that slides in the first slide groove; a second slide groove is provided on the base, and the second end of the first arm and the second end of the second arm of each group of lifting arms are respectively connected to a second slider that slides in the second slide groove.

[0012] In some embodiments, the first sliding block and the second sliding block are both provided with guide ribs protruding outward and extending along the sliding direction, and the guide ribs are respectively fitted with the inner peripheral wall of the sliding groove.

[0013] In some embodiments, there are two synchronization components, and the two synchronization components are respectively arranged on the working platform and the base.

[0014] In some embodiments, the desktop lifting workbench further includes a power element, which is connected between the work platform and the base and is located on a side close to one of the sets of lifting arms, and is used to provide lifting force for the work platform to rise.

[0015] In some embodiments, the first end of the power element is rotatably connected to the working platform or the base, and the second end is rotatably connected to the lifting assembly; or the first end of the power element is rotatably connected to the working platform and the second end is rotatably connected to the base; or the first end of the power element is rotatably connected to the first branch arm of the lifting arm and the second end is rotatably connected to the second branch arm of the lifting arm; wherein the power element is one of a gas spring, a hydraulic cylinder and a linear actuator.

[0016] In some embodiments, a connecting rod is connected between the two first arms or the two second arms of the two groups of lifting arms, the first end of the power element is rotatably connected to the connecting rod, and the second end of the power element is rotatably connected to the second pull rod or the first pull rod.

[0017] In some embodiments, the desktop lifting workbench also includes a locking mechanism, which is connected to the work platform and / or the base, and is used to lock the work platform at any height of its travel; or the locking mechanism is connected to the lifting assembly, and is used to lock the work platform at any height of its travel.

[0018] In some embodiments, the locking mechanism includes a bayonet connected to the working platform or the base and a lock disk connected to the rotating arm, and the lock disk is provided with a plurality of bayonet holes distributed circumferentially around the rotation center of the rotating arm, and a wrench is rotatably connected to the working platform or the base, and the wrench is connected to the bayonet through a cable, and is used to control the bayonet pin to be inserted into or out of the bayonet hole; or

[0019] The locking mechanism includes a locking pin connected to the working platform or the base, a locking plate slidably connected to the working platform or the base and connected to the first end or the second end of the support arm, and the locking plate is provided with a plurality of locking holes spaced apart along the sliding direction, and a driving handle is rotatably connected to the working platform or the base, and the driving handle is connected to the locking pin through a cable, so as to control the locking pin to be inserted into or out of the locking hole.

[0020] In some embodiments, a keyboard tray is detachably connected to a side of the work platform close to the user.

[0021] In summary, the desktop lifting workbench of the present application has the following advantages compared with the related art: the desktop lifting workbench includes at least one synchronization component, the synchronization component includes a first pull rod, a second pull rod and a swing arm mechanism, the first traction arm and the second traction arm of the swing arm mechanism are rotatably connected to the first pull rod and the second pull rod respectively, and the swing arm mechanism can make the first pull rod and the second pull rod keep moving toward or away from each other at the same time; furthermore, the first pull rod and the second pull rod of the synchronization component can make the first end of the first branch arm and the first end of the second branch arm of each group of lifting arms keep moving toward or away from each other at the same time, or make the second end of the first branch arm and the second end of the second arm of each group of lifting arms keep moving toward or away from each other at the same time; the setting of the synchronization component not only makes the lifting between the two groups of lifting arms always synchronized, but also the first pull rod and the second pull rod of the synchronization component are connected to the two groups of lifting arms, so that the structural stability between the two groups of lifting arms is better and the supporting capacity is strong; even when the work platform is at the highest position, it is not easy to shake. In addition, with the joint support of the two groups of lifting arms, not only can the supporting capacity of the working platform meet the requirements, but also the minimum distance between the first end of the first arm and the first end of the second arm of each group of lifting arms, or between the second end of the first arm and the second end of the second arm, can be set smaller, thereby making the span of the synchronization component small and the coordination stability between the synchronization component and the arm end good, which can effectively avoid shaking or stuttering of the working platform when adjusting the height, and provide a good user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a desktop lifting workbench according to some embodiments of the present application.

[0023] Figure 2 This is a schematic diagram from another angle of a desktop lifting workbench according to some embodiments of the present application.

[0024] Figure 3 This is a schematic diagram of the internal structure of a base of a desktop lifting workbench according to some embodiments of the present application.

[0025] Figure 4 It is a schematic diagram of the installation structure of a lifting arm of a desktop lifting workbench according to some embodiments of the present application.

[0026] Figure 5 It is a schematic cross-sectional structure diagram of a desktop lifting workbench according to some embodiments of the present application.

[0027] Figure 6 It is a schematic diagram of folding a desktop lifting workbench according to some embodiments of the present application.

[0028] Figure 7 It is a side schematic diagram of a desktop lifting workbench according to some embodiments of the present application.

[0029] Figure 8 It is a side schematic diagram of a desktop lifting workbench in a folded state according to some embodiments of the present application.

[0030] Fig. 9 It is a schematic diagram of a desktop lifting workbench according to other embodiments of the present application.

[0031] Fig.10 It is a schematic diagram of the bottom structure of a desktop lifting workbench according to other embodiments of the present application.

[0032] Fig.11 It is a schematic diagram of a desktop lifting workbench according to some embodiments of the present application.

[0033] Fig.12 This is a bottom schematic diagram of a desktop lifting workbench according to some embodiments of the present application.

[0034] Fig.13 It is a schematic diagram of a locking mechanism of a desktop lifting workbench according to some embodiments of the present application.

[0035] Fig.14 It is a three-dimensional structural schematic diagram of a locking mechanism of a desktop lifting workbench according to some embodiments of the present application.

[0036] Fig.15 It is a schematic diagram of the assembly structure of a locking mechanism of a desktop lifting workbench according to other embodiments of the present application.

[0037] Description of reference numerals:

[0038] 1. working platform, 100, first slide, 2. base, 200, second slide, 3. lifting assembly, 300, lifting arm, 301, first support arm, 302, second support arm, 303, connecting rod, 304, first slider, 305, second slider, 306, guide rib, 4. keyboard tray, 5. power element, 6. synchronization assembly, 600, rotating arm, 601, first traction arm, 602, second traction arm, 603, first pull rod, 604, second pull rod, 605, fixed seat, 606, locking disk, 607, card hole, 608, card pin, 609, bracket, 7. locking plate, 700, locking hole, 701, locking pin, 702, slide. DETAILED DESCRIPTION

[0039] 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.

[0040] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0041] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] See also Figures 1 to 8 As shown, an embodiment of the present application discloses a desktop lifting workbench, which is also called a desktop workbench, a desktop lifting table, etc. Its structure includes a work platform 1, a base 2 and a lifting component 3 connecting the work platform 1 and the base 2 for adjusting the height of the work platform 1 relative to the base 2; the work platform 1 is also called a table top, an upper platform, a storage panel, etc., the base 2 is also called a base, a lower platform, a chassis, etc., and the base 2 is placed on a desktop or table top in the prior art.

[0044] In this embodiment, if Figure 1 , Figure 2 and Figure 3 As shown, the lifting assembly 3 includes two groups of lifting arms 300, and each group of lifting arms 300 includes two arms hinged in the middle to form an X shape: a first arm 301 and a second arm 302, that is, the first arm 301 and the second arm 302 are crossed in the middle to form an X shape, and the crossing part is rotatably connected by a rotating shaft, and the first end of the first arm 301 and the first end of the second arm 302 are respectively slidably connected to the working platform 1, and the second end of the first arm 301 and the second end of the second arm 302 are respectively slidably connected to the base 2.

[0045] For example, two hollow metal square tubes are connected to the bottom of the working platform 1, and an intermediate connecting tube is connected between the two metal square tubes. The two hollow metal square tubes are respectively arranged corresponding to the two groups of lifting arms 300, and the inner holes of the metal square tubes form a first slide groove 100. The first end of the first arm 301 and the first end of the second arm 302 of each group of lifting arms 300 are respectively connected to a first slider 304 that slides in the first slide groove 100; similarly, the base 2 has two parallel square metal tubes, and an intermediate connecting tube is connected between the two square metal tubes. The inner holes of the square metal tubes form a second slide groove 200, and the second end of the first arm 301 and the second end of the second arm 302 of each group of lifting arms 300 are respectively connected to a second slider 305 that slides in the second slide groove 200.

[0046] It can be understood that the first support arm 301 or the second support arm 302 is a rod or plate with a certain length, having two ends, namely a first end and a second end relative to the first end; specifically in this embodiment, the first end, namely the upper end, is located at the end of the support arm close to the working platform, and the second end, namely the lower end, is located at the end of the support arm close to the base.

[0047] It is not difficult to understand that when the height of the working platform 1 is adjusted relative to the base 2, the first arm 301 and the second arm 302 of the lifting arm perform scissor difference motion or shear motion around the rotation axis in the middle thereof, and the two first sliders 304 connected to the first end of the first arm 301 and the first end of the second arm 302 move toward each other or move away from each other in the first slide groove 100 at the same time, and at the same time, the two second sliders 305 connected to the second end of the first arm 301 and the second end of the second arm 302 move toward each other or move away from each other in the second slide groove 200 at the same time; therefore, within the entire height adjustment range of the lifting work table, the support center of gravity of the lifting component 3 and the center of gravity of the load of the working platform 1 remain relatively unchanged, or the support center of gravity of the lifting component 3 is always maintained on the same vertical line as the load center of gravity of the working platform 1, or the support center of gravity of the lifting component 3 coincides with the load center of gravity of the working platform 1 and will not shift relatively, so that the lifting work platform has good support stability, strong load-bearing capacity, and avoids rollover, with high safety.

[0048] For example, Figure 1 and Figure 7 As shown, at this time, the working platform 1 is at the highest position relative to the base 2, and the supporting center of gravity of the lifting assembly 3 and the center of gravity of the load of the working platform 1 are maintained on the vertical center line of the working platform 1; Figure 5 and Figure 8 As shown, the working platform 1 is in the middle position of its travel relative to the base 2 , while the supporting center of gravity of the lifting assembly 3 and the center of gravity of the load of the working platform 1 are still maintained on the vertical center line of the working platform 1 .

[0049] In some embodiments, in order to make the first slider 304 and the second slider 305 at the end of the arm slide more smoothly in the slide groove, the first slider 304 and the second slider 305 are provided with a guide rib 306 protruding outward and extending along the sliding direction. Figure 3 As shown, the guide ribs 306 are respectively fitted with the inner peripheral wall of the slide groove, which can ensure that the first slider 304 and the second slider 305 will not shake laterally along the slide groove when sliding in the slide groove.

[0050] Furthermore, in the present embodiment, the lifting arms 300 of the lifting assembly 3 are divided into two groups, and the two groups of lifting arms 300 are respectively arranged on both sides of the bottom of the working platform 1, and are symmetrically arranged; in other embodiments, the lifting arms 300 of the lifting assembly 3 can also be arranged in three groups, four groups, etc., and are arranged in sequence along the length direction of the working platform 1.

[0051] It is understandable that when the two arms make a scissor difference motion, if the horizontal displacement and rotation angle of the upper ends of the two arms or / and the lower ends of the two arms are not synchronized or there is a movement lag, it is easy to cause the working platform 1 to tilt or the lifting and lowering are not smooth or stuck; in the embodiment of the present application, in order to avoid these defects, the desktop lifting workbench also includes at least one synchronization component 6, such as Figure 2 , Figure 3 and Figure 4 As shown, the synchronization assembly 6 includes a first pull rod 603, a second pull rod 604 and a swing arm mechanism, the swing arm mechanism includes a rotating arm 600 rotatably connected to the working platform 1 or the base 2, and the two ends of the rotating arm 600 are respectively rotatably connected to the first traction arm 601 and the second traction arm 602 that simultaneously move toward the center or simultaneously expand to both sides, the first traction arm 601 and the second traction arm 602 are respectively rotatably connected to the first pull rod 603 and the second pull rod 604; the first pull rod 603 is respectively connected to the two sets of lifting arms 300 The first end of the first support arm 301 of the two lifting arms 300 is connected, and the second pull rod 604 is respectively connected to the first end of the second support arm 302 of the two lifting arms 300; or the first pull rod 603 is respectively connected to the second end of the first support arm 301 of the two lifting arms 300, and the second pull rod 604 is respectively connected to the second end of the second support arm 302 of the two lifting arms 300; after the first pull rod 603 and the second pull rod 604 are connected to the support arms of the lifting arms 300, the first pull rod 603 and the second pull rod 604 are in parallel.

[0052] Furthermore, the center of the rotating arm 600 is rotatably connected to the working platform 1 or the base 2 via a rotating shaft, and the first traction arm 601 and the second traction arm 602 are rotatably connected to the two ends of the rotating arm 600 respectively. When the rotating arm 600 is driven to rotate, the two ends of the rotating arm 600 drive the first traction arm 601 and the second traction arm 602 to gather inward along the rotation direction, so that the first pull rod 603 and the second pull rod 604 move toward each other at the same time; when the rotating arm 600 is driven to rotate in the opposite direction, the two ends of the rotating arm 600 drive the first traction arm 601 and the second traction arm 602 to rotate in the opposite direction and expand outward, so that the first pull rod 603 and the second pull rod 604 move away from each other at the same time.

[0053] Further in this embodiment, Figure 4 As shown, the centers of the first pull rod 603 and the second pull rod 604 are both connected with a fixing seat 605 , and the outer ends of the first traction arm 601 and the second traction arm 602 are hinged to the fixing seats 605 on the first pull rod 603 and the second pull rod 604 , respectively.

[0054] In this embodiment, the swing arm mechanism of the synchronization component 6 can make the first pull rod 603 and the second pull rod 604 keep moving toward or away from each other at the same time; the first pull rod 603 and the second pull rod 604 of the synchronization component 6 can make the first end of the first branch arm 301 and the first end of the second branch arm 302 of each group of lifting arms 300 keep moving toward or away from each other at the same time, or make the second end of the first branch arm 301 and the second end of the second branch arm 302 of each group of lifting arms 300 keep moving toward or away from each other at the same time; the setting of the synchronization component 6 not only makes the lifting between the two groups of lifting arms 300 always synchronized, but also the first pull rod 603 and the second pull rod 604 of the synchronization component 6 are connected to the two groups of lifting arms 300, so that the structural stability between the two groups of lifting arms 300 is better and the supporting capacity is strong; even when the working platform 1 is at the highest position, it is not easy to shake. In addition, with the joint support of the two groups of lifting arms 300, not only can the supporting capacity of the working platform 1 meet the requirements, but also the minimum distance between the first end of the first arm 301 and the first end of the second arm 302 of each group of lifting arms 300, or the second end of the first arm 301 and the second end of the second arm 302 can be set smaller, thereby reducing the span of the synchronization component 6 and improving the coordination stability between the synchronization component 6 and the arm end, effectively preventing the working platform 1 from shaking or stalling when adjusting its height, and providing a good user experience.

[0055] In this embodiment, the span of the synchronization component 6 refers to the span between the first end of the first arm 301 and the first end of the second arm 302, or the span between the second end of the first arm 301 and the second end of the second arm 302 when they are at the minimum distance, and the span between the first rod 603 and the second rod 604 when they are at the maximum distance. In this embodiment, when the synchronization component 6 is at the minimum span, it is smaller than the minimum span of the synchronization component in the related art, and when the synchronization component 6 is at the maximum span, it is smaller than the maximum span of the synchronization component in the related art.

[0056] In some embodiments, the desktop lifting workbench further includes a power element 5, which is connected between the work platform 1 and the base 2 and is located on a side close to one of the lifting arms 300, and is used to provide a lifting force for the work platform 1 to rise and to provide a load-bearing or partial load-bearing for the work platform 1. The power element 5 can be a gas spring, a hydraulic cylinder, or a linear actuator. The power element 5 is located on a side close to one of the lifting arms 300, so that the torque of the power element 5 is shortened, the locking effect is better, more stable, and does not shake.

[0057] In the embodiments of the present application, Fig. 9 and Fig.10 As shown, the power element 5 is a gas spring, which is a self-locking gas spring, has a control valve, and a rotating member or a driving member that can drive the gas spring to control the valve to open is connected to the working platform 1 or the base 2. The first end of the power element 5 is rotatably connected to the first arm 301 of the lifting arm 300, and the second end is rotatably connected to the second arm 302 of the lifting arm 300. The power element 5 can drive the first arm 301 of the lifting arm 300 to rotate relative to the second arm 302, thereby driving the working platform 1 to rise.

[0058] For example, Fig.10 and Fig.12 As shown, the power element 5 is a gas spring, a connecting rod 303 is connected between the second arms 302 of the two sets of lifting arms 300, the first end of the power element 5 is rotatably connected to the connecting rod 303, and the second end of the power element 5 is rotatably connected to the second pull rod 604; in other embodiments, a connecting rod 303 can also be connected between the first arms 301 of the two sets of lifting arms 300.

[0059] In other embodiments, the power element 5 is a gas spring, the first end of the power element 5 is rotatably connected to the work platform 1 or the base 2, and the second end is rotatably connected to the first arm 301 or the second arm 302 of the lifting assembly 3; or the first end of the power element 5 is rotatably connected to the work platform 1 and the second end is rotatably connected to the base 2. There are various connection methods for the power element 5, which can be set according to specific needs.

[0060] In some embodiments, the power element 5 is a linear actuator, such as Figure 1 and Figure 3 As shown, the first end of the linear actuator is hinged to the second pull rod 604, and the second end is hinged to the connecting rod 303 between the two sets of lifting arms 300. The structure of the linear actuator generally includes a drive motor and an actuator body that is transmission-connected to the drive motor, and the actuator body has an actuator end that can axially reciprocate relative to the actuator body; the linear actuator can output linear thrust and tension; the linear actuator can also be replaced by a linear motor or an electric push rod.

[0061] It is not difficult to understand that when the power element 5 is a linear actuator, the desktop lifting workbench is an electric desktop lifting workbench, and the linear actuator itself can provide the load-bearing or supporting force of the work platform 1, and there is no need to set up an additional locking mechanism at this time; similarly, for desktop lifting workbenches with lower load-bearing requirements, its power element 5 can use a controllable gas spring or a self-locking gas spring, and the self-locking force of the gas spring can keep the work platform 1 at a certain height. For desktop lifting workbenches with higher load-bearing requirements and using gas springs as power elements 5, they are generally equipped with a locking mechanism, which is connected to the work platform 1 or the base 2, and is used to lock the work platform 1 at any height of its travel; or in some embodiments, the locking mechanism can also be connected between the two arms of the lifting arm 300, and is used to lock the work platform 1 at any height of its travel.

[0062] In this embodiment, the structure of the locking mechanism can adopt the following locking method.

[0063] In some embodiments, see Fig.11 , Fig.12 , Fig.13 and Fig.14As shown, the locking mechanism includes a latch pin 608 connected to the working platform 1 or the base 2 and a locking disk 606 connected to the rotating arm 600, and the locking disk 606 is provided with a plurality of latch holes 607 distributed circumferentially around the rotation center of the rotating arm 600. A wrench is rotatably connected to the working platform 1 or the base 2, and the wrench is connected to the latch pin 608 through a cable, and is used to control the latch pin 608 to be inserted into or out of the latch hole 607. Specifically, the locking disk 606 and the rotating arm 600 are an integral structure, a bracket 609 is connected to the working platform 1 or the base 2, a latch pin 608 is connected to the bracket 609, and the latch pin 608 includes a pin body that can axially move into or out of the latch hole 607 and a spring for resetting the pin body, and the spring connects the pin body and the bracket 609; in a natural state, the pin body of the latch pin 608 is inserted into the latch hole 607 under the action of the spring, so that the rotation of the rotating arm 600 is locked, the distance between the first pull rod 603 and the second pull rod 604 is fixed, and the height of the working platform 1 remains unchanged; when the height of the working platform 1 needs to be adjusted, the wrench is pulled, and the wrench drives the pin body of the latch pin 608 to disengage from the latch hole 607 through the cable, and the rotating arm 600 is unlocked, and the height of the working platform 1 can be adjusted at this time.

[0064] In some embodiments, see Fig.15 As shown, the locking mechanism includes a locking pin 701 connected to the working platform 1 or the base 2, a locking plate 7 connected to the first end or the second end of the support arm is slidably connected to the working platform 1 or the base 2, and the locking plate 7 is provided with a plurality of locking holes 700 spaced apart along the sliding direction, and a driving handle is rotatably connected to the working platform 1 or the base 2, and the driving handle is connected to the locking pin 701 through a cable, and is used to control the locking pin 701 to be inserted into or out of the locking hole 700. Specifically in this embodiment, in order to make the locking plate 7 slide in the horizontal direction in the slide groove, a slide seat 702 is connected to the tail end of the locking plate 7, and under the support of the slide seat 702, the locking plate 7 can slide in the horizontal direction along with the end of the support arm. A support frame is connected to the working platform 1 or the base 2, and a spring is connected between the locking pin 701 and the support frame, and under the action of the spring, the locking pin 701 always has a movement tendency to be plugged into the locking hole 700; in the locked state, the locking pin 701 is inserted into the locking hole 700 under the action of the spring, so that the sliding of the locking plate 7 is locked, and the height of the working platform 1 remains unchanged; when the height of the working platform 1 needs to be adjusted, the driving handle is turned, and the driving handle drives the locking pin 701 to disengage from the locking hole 700 through the cable, and the locking plate 7 is unlocked, and the height of the working platform 1 can be adjusted at this time.

[0065] In some embodiments, Figure 1 and Figure 6As shown, in order to facilitate the placement of the keyboard, a keyboard tray 4 is detachably connected to the side of the work platform 1 close to the user, and a support pad is connected to the bottom of the keyboard tray 4. When the work platform 1 is at the lowest position, the bottom plane of the support pad is at the same horizontal height as the bottom plane of the base 2. In this way, when the work platform 1 is at the lowest position, the support pad at the bottom of the keyboard tray 4 contacts the ground or the table top, which makes the standing stability of the desktop lifting workbench better.

[0066] 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.

[0067] 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.

[0068] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A desktop lifting workbench, characterized in that: include Work platform; A base that sits on an existing table or countertop; and A lifting assembly connected to the working platform and the base for adjusting the height of the working platform relative to the base, the lifting assembly comprising two sets of lifting arms, each set of lifting arms comprising two arms hinged in the middle in an X shape: a first arm and a second arm, and the first end of the first arm and the first end of the second arm are respectively slidably connected to the working platform, and the second end of the first arm and the second end of the second arm are respectively slidably connected to the base; At least one synchronization component, the synchronization component includes a first pull rod, a second pull rod and a swing arm mechanism, the swing arm mechanism includes a rotating arm rotatably connected to the working platform or the base, and the two ends of the rotating arm are respectively rotatably connected to the first traction arm and the second traction arm which simultaneously move toward the center or simultaneously expand to both sides, the first traction arm and the second traction arm are respectively rotatably connected to the first pull rod and the second pull rod; the first pull rod is respectively connected to the first end of the first support arm of the two groups of lifting arms, and the second pull rod is respectively connected to the first end of the second support arm of the two groups of lifting arms; or the first pull rod is respectively connected to the second end of the first support arm of the two groups of lifting arms, and the second pull rod is respectively connected to the second end of the second support arm of the two groups of lifting arms.

2. The desktop lifting workbench according to claim 1, characterized in that: A first slide groove is provided on the working platform, and the first end of the first arm and the first end of the second arm of each group of lifting arms are respectively connected to a first slider slidably fitted in the first slide groove; a second slide groove is provided on the base, and the second end of the first arm and the second end of the second arm of each group of lifting arms are respectively connected to a second slider slidably fitted in the second slide groove.

3. The desktop lifting workbench according to claim 2, characterized in that: The first sliding block and the second sliding block are both provided with guide convex ribs protruding outward and extending along the sliding direction, and the guide convex ribs are respectively fitted with the inner peripheral wall of the sliding groove.

4. The desktop lifting workbench according to claim 1, characterized in that: There are two synchronization components, and the two synchronization components are respectively arranged on the working platform and the base.

5. The desktop lifting workbench according to claim 1, characterized in that: The desktop lifting workbench also includes a power element, which is connected between the work platform and the base and is located on a side close to one group of lifting arms, and is used to provide lifting force for the work platform to rise.

6. The desktop lifting workbench according to claim 5, characterized in that: The first end of the power element is rotatably connected to the working platform or the base, and the second end is rotatably connected to the lifting assembly; or the first end of the power element is rotatably connected to the working platform and the second end is rotatably connected to the base; or the first end of the power element is rotatably connected to the first branch arm of the lifting arm and the second end is rotatably connected to the second branch arm of the lifting arm; wherein the power element is one of a gas spring, a hydraulic cylinder and a linear actuator.

7. The desktop lifting workbench according to claim 6, characterized in that: A connecting rod is connected between the two first arms or the two second arms of the two groups of lifting arms, the first end of the power element is rotatably connected to the connecting rod, and the second end of the power element is rotatably connected to the second pull rod or the first pull rod.

8. The desktop lifting workbench according to claim 1, characterized in that: The desktop lifting workbench also includes a locking mechanism, which is connected to the work platform or the base and is used to lock the work platform at any height of its travel; or the locking mechanism is connected to the lifting component and is used to lock the work platform at any height of its travel.

9. The desktop lifting workbench according to claim 8, characterized in that: The locking mechanism comprises a bayonet connected to the working platform or the base and a lock plate connected to the rotating arm, and the lock plate is provided with a plurality of bayonet holes distributed circumferentially around the rotation center of the rotating arm, and a wrench is rotatably connected to the working platform or the base, and the wrench is connected to the bayonet through a cable and is used to control the bayonet pin to be inserted into or out of the bayonet hole; or The locking mechanism includes a locking pin connected to the working platform or the base, a locking plate slidably connected to the working platform or the base and connected to the first end or the second end of the support arm, and the locking plate is provided with a plurality of locking holes spaced apart along the sliding direction, and a driving handle is rotatably connected to the working platform or the base, and the driving handle is connected to the locking pin through a cable, so as to control the locking pin to be inserted into or out of the locking hole.

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

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