CN214399712U

CN214399712U - Double-shear type lifting mechanism

Info

Publication number: CN214399712U
Application number: CN202120408953.7U
Authority: CN
Inventors: 江潮辉; 蒋雯; 吴仪; 黄潮桂; 李卓辉
Original assignee: Guangdong University of Technology
Current assignee: Guangdong University of Technology
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-10-15
Anticipated expiration: 2031-02-24

Abstract

The utility model discloses a double-shear type lifting mechanism, which mainly comprises a driving device, a lifting device and an auxiliary supporting device. When the lifting mechanism works, the lifting motor rotates, the pushing block is driven by the first gear and the second gear to move upwards or downwards, and at the moment, the pushing block drives the Y-shaped module to drive the first connecting rod and the second connecting rod to unfold or fold so as to realize that the workbench is lifted or lowered in the longitudinal direction; meanwhile, the third connecting rod and the fourth connecting rod of the auxiliary supporting device are unfolded along with the upward movement or the downward movement of the Y-shaped module, so that side auxiliary support is provided for the lifting of the workbench, and the workbench can be lifted stably and smoothly. The utility model discloses still have simple structure, convenient operation, easy advantage of implementing.

Description

Double-shear type lifting mechanism

Technical Field

The utility model relates to a jacking equipment technical field especially relates to a double shear formula elevating system.

Background

The mechanism that possesses raising and lowering functions at present adopts traditional scissor-fork type elevating system mostly, its major disadvantage is that its lift in-process has one side the connecting rod can slide and lead to going up and down to the eminence when, the mechanism has one side not to have the connecting rod to support the gravity that receives for its top heavy object under, so the power of this department people or heavy object can produce a torsion to the mechanism, there is the tendency of turning on one's side, in order to let it stably satisfy atress and operation requirement in the engineering, generally select the material of higher strong rigidity for use, increase thickness promotes the atress ability. The high-altitude operation mechanism has the advantages that the whole mechanism is heavy and high in cost, a hydraulic transmission mode is generally adopted, the weight of the mechanism is further increased, and the mechanism is inconvenient to move, so that the weight of the high-altitude operation machine in China is generally in a unit of ton and is applied to an outdoor factory or a factory with a large space, the high-altitude operation machine is generally moved and steered in a differential wheel mode, the differential wheel is troublesome to steer, when the size of the lifter is particularly large, the turning radius is large, the required movement space is large, and the high-altitude operation machine is not flexible enough, so that the high-altitude operation tool which is light, flexible and convenient and flexible to operate and is really applied to indoor repair is temporarily unavailable in China. The existing indoor finishing workers in China also generally adopt a temporary local-material self-made ladder or a common herringbone ladder, the standardization and the standardization are insufficient, small accidents often occur, although the indoor height is low, certain risks also exist, the working efficiency of the self-made ladder or the herringbone ladder is not high, and the working place is often required to be transferred by getting on or off the ladder during working.

Accordingly, further improvements and improvements are needed in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a double-shear type elevating system.

The purpose of the utility model is realized through the following technical scheme:

a double-shear type lifting mechanism mainly comprises a driving device, a lifting device and an auxiliary supporting device. The driving device is arranged in the shell and is fixedly connected with the beam frame. The lifting device is arranged on the shell and connected with the driving device, and the driving end of the lifting device is fixedly connected with the bottom of the workbench. The auxiliary supporting device is installed on the shell and located outside the lifting device, the bottom of the auxiliary supporting device is fixedly connected with the shell, and the top of the auxiliary supporting device is fixedly connected with the bottom of the workbench. The lifting device is positioned in the auxiliary supporting device.

Specifically, the driving device mainly comprises a lifting motor, a first gear, a second gear and a lifting rod. The lifting motor is installed on the cross beam frame through the motor base and fixedly connected with the cross beam frame, and an output shaft of the lifting motor is in transmission connection with the first gear. The lifting rod is vertically arranged in the chassis, and two ends of the lifting rod are respectively connected with the top and the bottom of the chassis through bearings. The lifting rod is provided with external threads. The second gear is arranged on the lifting rod and is in meshed transmission with the first gear, the inner side surface of the second gear is provided with internal threads and is in threaded connection with the lifting rod, and the second gear is driven by the lifting rod to move up and down.

Specifically, the lifting device mainly comprises a pushing block, a Y-shaped module and a lifting module. The pushing block is fixedly arranged on the second gear, is connected with the lifting rod in a sliding mode and is driven by the second gear to move up and down. One end of the Y-shaped module is hinged with the pushing block, and the other end of the Y-shaped module is hinged with the lifting module and drives the lifting module to unfold or fold. One end of the lifting module is arranged on the shell, and the other end of the lifting module is connected with the bottom of the workbench.

Specifically, the lifting module is formed by connecting a plurality of groups of first scissors folding structures end to end in the longitudinal direction. The first scissors folding structure is at least provided with two groups in the transverse direction and comprises a first connecting rod, a second connecting rod and a first stabilizing rod. The first connecting rod and the second connecting rod are arranged in an X shape and are hinged in the middle, and two ends of the first connecting rod are hinged with the second connecting rod and the first connecting rod of the front group of first scissors folding structure and the second connecting rod of the rear group of first scissors folding structure respectively. The first stabilizer bar is arranged between two groups of first scissors folding structures which are adjacent in the transverse direction, and two ends of the first stabilizer bar are fixedly connected with the first connecting rod or the second connecting rod respectively.

Further, the first scissors folded configuration further includes a first stabilizing plate. The first stabilizing plate is arranged between two groups of transversely adjacent first scissors folding structures, and two ends of the first stabilizing plate are fixedly connected with the first connecting rod or the second connecting rod respectively.

Specifically, the Y-shaped modules are respectively arranged on two sides of the pushing block and mainly comprise a first push rod, a second push rod, a third push rod and a second stabilizing plate. The first push rod is longitudinally arranged, the bottom of the first push rod is hinged to the pushing block, and the top of the first push rod is hinged to the joint of the second push rod and the third push rod respectively. One end of the second push rod is hinged with one end of the third push rod. The other end of the second push rod and the other end of the third push rod are respectively hinged with the joint of the first connecting rod and the second connecting rod. The second stabilizing plate is arranged between the Y-shaped modules at two sides, and two ends of the second stabilizing plate are fixedly connected with the second push rod and the third push rod respectively.

Specifically, the auxiliary supporting device is formed by connecting a plurality of groups of second scissors folding structures end to end in the longitudinal direction. The second scissors folding structure is at least provided with two groups in the transverse direction and comprises a third connecting rod, a fourth connecting rod and a second stabilizing rod. The third connecting rod and the fourth connecting rod are arranged in an X shape and are hinged in the middle, and two ends of the third connecting rod are hinged with the fourth connecting rod and the first connecting rod of the front group of second scissors folding structure and the rear group of second scissors folding structure respectively. The second stabilizer bar is arranged between two groups of second scissors folding structures which are adjacent in the transverse direction, and two ends of the second stabilizer bar are fixedly connected with the third connecting rod or the fourth connecting rod respectively.

Further, the second scissors folded configuration further includes a third stabilizing panel and a fourth stabilizing panel disposed between two laterally adjacent sets of second scissors folded configurations. The third stabilizing plate is arranged on the fourth stabilizing plate and is perpendicular to the fourth stabilizing plate. And two ends of the third stabilizing plate and the fourth stabilizing plate are fixedly connected with the third connecting rod or the fourth connecting rod respectively.

The utility model discloses a working process and principle are: when the lifting mechanism works, the lifting motor rotates, the pushing block is driven by the first gear and the second gear to move upwards or downwards, and at the moment, the pushing block drives the Y-shaped module to drive the first connecting rod and the second connecting rod to unfold or fold so as to realize that the workbench is lifted or lowered in the longitudinal direction; meanwhile, the third connecting rod and the fourth connecting rod of the auxiliary supporting device are unfolded along with the upward movement or the downward movement of the Y-shaped module, so that side auxiliary support is provided for the lifting of the workbench, and the workbench can be lifted stably and smoothly. The utility model discloses still have simple structure, convenient operation, easy advantage of implementing.

Compared with the prior art, the utility model discloses still have following advantage:

(1) the utility model provides a double shear formula elevating system adopts the foldable elevating gear of scissors, makes elevating system can realize folding accomodating, reduces the space and occupies, conveniently carries simultaneously.

(2) The utility model provides a double shear formula elevating system adopts the foldable auxiliary stay device of scissors, makes the auxiliary stay can conveniently fold, reduces the space and occupies when improving the support nature.

Drawings

Fig. 1 is a perspective view of the portable liftable trolley provided by the utility model.

Fig. 2 is a front view of the portable liftable trolley provided by the utility model.

Fig. 3 is a left side view of the portable liftable trolley provided by the utility model.

Fig. 4 is a structural view of a chassis part provided by the present invention.

Fig. 5 is a schematic structural diagram of the inside of the chassis provided by the present invention.

Fig. 6 is a schematic structural diagram of the inside of the chassis (without the driving device) provided by the present invention.

Fig. 7 is a schematic structural diagram of the inside of the chassis (with the outer shell removed) provided by the present invention.

Fig. 8 is a top view of the interior of the chassis provided by the present invention.

Fig. 9 is a front view of the lifting mechanism provided by the present invention.

Fig. 10 is a left side view of the lifting mechanism provided by the present invention.

Fig. 11 is a perspective view of the lifting mechanism provided by the present invention.

Fig. 12 is a schematic structural diagram of the lifting mechanism provided by the present invention.

Fig. 13 is a schematic structural diagram of a driving device provided by the present invention.

Fig. 14 is a front view of the driving device provided by the present invention.

Fig. 15 is a schematic structural diagram of the workbench according to the present invention.

Fig. 16 is a schematic view of the lifting fence and a partial enlargement provided by the present invention.

Fig. 17 is a schematic structural diagram of the tool box provided by the present invention.

Fig. 18 is a top view of the tool box provided by the present invention.

The reference numerals in the above figures illustrate:

1-a chassis, 2-a lifting mechanism and 5-a workbench;

11-shell, 12-driving wheel, 13-driving motor, 14-driving circuit, 15-beam frame, 16-longitudinal beam frame;

21-driving device, 22-lifting device, 23-auxiliary supporting device, 31-lifting motor, 32-first gear, 33-second gear, 34-lifting rod, 35-pushing block, 36-first connecting rod, 37-second connecting rod, 38-first stabilizing rod, 39-first stabilizing plate, 40-first push rod, 41-second push rod, 42-third push rod, 43-second stabilizing plate, 44-third connecting rod, 45-fourth connecting rod, 46-second stabilizing rod, 47-third stabilizing plate, 48-fourth stabilizing plate;

51-platform, 52-tool box, 53-lifting rail, 54-fifth connecting rod, 55-sixth connecting rod, 56-button, 57-first clamping block, 58-mounting plate, 59-second clamping block, 60-inner plate, 61-outer plate, 62-partition plate and 63-sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention will be further described with reference to the accompanying drawings and examples.

Example 1:

as shown in fig. 1 to 18, the present embodiment discloses a portable liftable trolley, which mainly comprises a movable chassis 1, a lifting mechanism 2, and a foldable workbench 5. The lifting mechanism 2 is arranged on the chassis 1, the driving end of the lifting mechanism is fixedly connected with the bottom of the workbench 5, and the workbench 5 is driven to lift and position.

Specifically, the chassis 1 comprises a box-shaped shell 11, and a driving wheel 12, a driving motor 13, a driving circuit 14, a power supply device, a cross beam frame 15 and a longitudinal beam frame 16 which are arranged in the shell 11 and used for bearing. The beam frame 15 is horizontally arranged in the shell 11 and is fixedly connected with the shell 11. The longitudinal beam frame 16 is vertically arranged in the shell 11, and the bottom of the longitudinal beam frame is fixedly connected with the transverse beam frame 15. The driving motor 13 is installed on the beam frame 15 through a motor base and is fixedly connected with the beam frame 15, and the output end of the driving motor is in transmission connection with the driving wheel 12. The drive circuit 14 is disposed in the housing 11 and electrically connected to the drive motor 13. The power supply device is electrically connected with the driving circuit 14 and adopts a power battery or an external power supply mode to supply power.

As a preferred embodiment of the present invention, the driving wheel 12 is an omni wheel.

As the preferred scheme of the utility model, the longeron frame 16 adopts the design of falling trapezoidal structure.

Specifically, the lifting mechanism 2 mainly includes a driving device 21, a lifting device 22, and an auxiliary supporting device 23. The driving device 21 is installed in the housing 11 and is fixedly connected with the beam frame 15. The lifting device 22 is installed on the housing 11 and connected with the driving device 21, and the driving end of the lifting device is fixedly connected with the bottom of the workbench 5. The auxiliary supporting device 23 is installed on the housing 11 and located outside the lifting device 22, and the bottom of the auxiliary supporting device is fixedly connected with the housing 11, and the top of the auxiliary supporting device is fixedly connected with the bottom of the workbench 5. The lifting device 22 is positioned in the auxiliary supporting device 23.

Specifically, the driving device 21 mainly includes a lifting motor 31, a first gear 32, a second gear 33, and a lifting rod 34. The lifting motor 31 is installed on the beam frame 15 through a motor base and is fixedly connected with the beam frame 15, and an output shaft of the lifting motor is in transmission connection with the first gear 32. The lifting rod 34 is vertically arranged in the chassis 1, and two ends of the lifting rod are respectively connected with the top and the bottom of the chassis 1 through bearings. The lifting rod 34 is provided with external threads. The second gear 33 is arranged on the lifting rod 34, is in meshing transmission with the first gear 32, is internally provided with internal threads, is in threaded connection with the lifting rod 34, and is driven by the lifting rod 34 to move up and down.

Specifically, the lifting device 22 mainly includes a pushing block 35, a Y-shaped module, and a lifting module. The pushing block 35 is fixedly arranged on the second gear 33, is connected with the lifting rod 34 in a sliding manner, and is driven by the second gear 33 to move up and down. One end of the Y-shaped module is hinged with the pushing block 35, and the other end of the Y-shaped module is hinged with the lifting module and drives the lifting module to unfold or fold. One end of the lifting module is arranged on the shell 11, and the other end of the lifting module is connected with the bottom of the workbench 5.

Specifically, the lifting module is formed by connecting a plurality of groups of first scissors folding structures end to end in the longitudinal direction. The first scissors folded configuration is provided in at least two sets in the lateral direction, including a first link 36, a second link 37, and a first stabilizer bar 38. The first connecting rod 36 and the second connecting rod 37 are arranged in an X shape and hinged in the middle, and two ends of the first connecting rod 36 are hinged with the second connecting rod 37 and the first connecting rod 36 of the front group and the rear group of the first scissors in a folding structure respectively. The first stabilizer bar 38 is disposed between two laterally adjacent groups of first scissors foldable structures, and two ends of the first stabilizer bar are fixedly connected with the first connecting rod 36 or the second connecting rod 37 respectively.

Further, the first scissors folded configuration further includes a first stabilizing plate 39. The first stabilizing plate 39 is arranged between two groups of first scissors folding structures which are adjacent in the transverse direction, and two ends of the first stabilizing plate are fixedly connected with the first connecting rod 36 or the second connecting rod 37 respectively.

Specifically, the Y-shaped modules are respectively disposed on two sides of the pushing block 35, and mainly include a first push rod 40, a second push rod 41, a third push rod 42, and a second stabilizing plate 43. The first push rod 40 is longitudinally arranged, the bottom of the first push rod is hinged with the pushing block 35, and the top of the first push rod is hinged with the joint of the second push rod 41 and the third push rod 42 respectively. One end of the second push rod 41 is hinged with one end of the third push rod 42. The other end of the second push rod 41 and the other end of the third push rod 42 are respectively hinged with the joint of the first connecting rod 36 and the second connecting rod 37. The second stabilizing plate 43 is disposed between the Y-shaped modules at two sides, and two ends of the second stabilizing plate are fixedly connected with the second push rod 41 and the third push rod 42 respectively.

Specifically, the auxiliary supporting device 23 is formed by connecting a plurality of groups of second scissors folding structures end to end in the longitudinal direction. The second scissors folded configuration is provided in at least two sets in the lateral direction, including a third link 44, a fourth link 45, and a second stabilizer bar 46. The third connecting rod 44 and the fourth connecting rod 45 are arranged in an X shape and hinged in the middle, and two ends of the third connecting rod 44 are respectively hinged with the fourth connecting rod 45 and the first connecting rod 36 of the front group and the rear group of the second scissors in a folding structure. The second stabilizer bar 46 is disposed between two groups of second scissors folding structures adjacent in the transverse direction, and two ends of the second stabilizer bar are fixedly connected with the third connecting rod 44 or the fourth connecting rod 45 respectively.

Further, the second scissors folded configuration further comprises a third stabilizer panel 47 and a fourth stabilizer panel 48 disposed between two laterally adjacent sets of second scissors folded configuration. The third stabilizer plate 47 is disposed on the fourth stabilizer plate 48 and is perpendicular to the fourth stabilizer plate 48. The third and fourth stabilizing

plates

47 and 48 are fixedly connected to the third and fourth connecting

rods

44 and 45, respectively, at both ends thereof.

Specifically, the work table 5 mainly includes a platform 51, a tool box 52, and a manual lifting fence 53. The platform 51 is arranged on the top of the lifting mechanism 2 and is fixedly connected with the driving end of the lifting mechanism 2. The tool boxes 52 are arranged on four sides of the platform 51 and fixedly connected with the platform 51. The lifting fences 53 are mounted on four sides of the platform 51, and lifting of the fences and opening and closing of the tool box 52 are realized in a folding manner.

Specifically, the lifting rail 53 mainly includes a rail body, a fifth connecting rod 54, a sixth connecting rod 55, a button 56, a first pull wire, a first latch 57, a first rotating shaft, a first spring, and a mounting plate 58. One end of the fifth connecting rod 54 is hinged with the platform 51, and the other end is hinged with one end of the sixth connecting rod 55. The other end of the sixth link 55 is hinged to one side of the end of the mounting plate 58. The fifth link 54 and the sixth link 55 are provided on both sides of the mounting plate 58. The first shaft is vertically mounted on the other side of the end of the mounting plate 58. The first clamping block 57 is installed on the first rotating shaft and fixedly connected with the first rotating shaft. One end of the first spring is fixed on the mounting plate 58, and the other end of the first spring is connected with the first rotating shaft and drives the first clamping block 57 to pass through the mounting plate 58 and then be clamped in the hole of the sixth connecting rod 55, so that the sixth connecting rod 55 is positioned. The button 56 is disposed on a mounting plate 58. One end of the first pull wire is connected with the first fixture block 57 at one end of the mounting plate 58, and the other end of the first pull wire penetrates through the button 56 and then is connected with the first fixture block 57 at the other end of the mounting plate 58, so that the button 56 is pressed down and pulls the first pull wire, the first fixture block 57 is separated from the hole of the sixth connecting rod 55, and the sixth connecting rod 55 is unlocked. The fence body is arranged on four sides of the platform 51 and is positioned above the tool box 52. The mounting plate 58 is mounted on the fence body. When the lifting fence 53 is in a folded state, the button 56 is pressed down, the first pull wire is contracted towards the middle, so that the first clamping blocks 57 on the two sides are pulled, the first clamping blocks 57 rotate backwards around the first rotating shaft and are separated from the holes in the sixth connecting rod 55, the sixth connecting rod 55 is unlocked, the fence body is manually lifted to a set position, the button 56 is released, the first clamping blocks 57 are clamped into the holes of the sixth connecting rod 55 again under the action of the first spring, and the positioning and locking of the sixth connecting rod 55 and the fence body are realized.

Further, the lifting rail 53 further includes a second latch 59, a second rotating shaft, a second spring, and a second pull line. The second shaft is mounted vertically on a mounting plate 58. The second fixture block 59 is disposed on the second rotating shaft and is fixedly connected with the second rotating shaft. One end of the second spring is fixedly connected with the mounting plate 58, and the other end of the second spring is connected with the second rotating shaft and drives the second clamping block 59 to pass through the mounting plate 58 and then be clamped on the side surface of the sixth connecting rod 55, so that the sixth connecting rod 55 is positioned. One end of the second pull wire is connected with a second fixture block 59 at one end of the mounting plate 58, and the other end of the second pull wire passes through the button 56 and then is connected with a second fixture block 59 at the other end of the mounting plate 58. One end of the second pull wire is connected with a second fixture block 59 at one end of the mounting plate 58, and the other end of the second pull wire passes through the button 56 and then is connected with a second fixture block 59 at the other end of the mounting plate 58. The locking and unlocking principle of the second latch 59 is the same as that of the first latch 57 except that the second latch 59 is not caught in the hole of the sixth link 55 but caught at the side of the sixth link 55.

Specifically, the tool box 52 mainly includes an inner plate 60, a bottom plate, an outer plate 61, and a partition plate 62. The inner plate 60 is obliquely arranged, the upper end of the inner plate is fixedly connected with the bottom of the platform 51, and the lower end of the inner plate is fixedly connected with the bottom plate. The bottom plate is horizontally arranged. The outer plate 61 is vertically disposed on the bottom plate. The partition plates 62 are disposed between the inner plate 60 and the outer plate 61, and are respectively disposed perpendicular to the inner plate 60, the outer plate 61, and the bottom plate, and divide a cavity formed between the inner plate 60 and the outer plate 61 into a plurality of independent receiving spaces.

As a preferred embodiment of the present invention, the working table 5 further includes a sensor 63 for detecting a distance. The sensor 63 is mounted on the outside of the tool box 52 and is electrically connected to the controller.

The utility model discloses a working process and principle are: when the lifting fence is used, a worker stands on the workbench 5, operates the lifting fence 53 to lift the fence body, takes out the operating handle from the tool box 52 and controls the lifting motor 31 to rotate, the first gear 32 and the second gear 33 drive the pushing block 35 to move upwards, and meanwhile, the Y-shaped module drives the lifting module to expand to realize the stable lifting of the whole workbench 5; when the position needs to be moved, the driving motor 13 is controlled by operating the handle, so that the driving wheel 12 drives the chassis 1 to integrally move; after the work is finished, the worker only needs to control the lifting mechanism 2 to be folded and transfer the lifting rail 53 through the operating handle, and then the folding and the storage of the lifting trolley can be realized. The utility model discloses still have simple structure, convenient operation, easy advantage of implementing.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

Claims

1. A double-shear type lifting mechanism is characterized by comprising a driving device, a lifting device and an auxiliary supporting device; the driving device is arranged in the shell and is fixedly connected with the beam frame; the lifting device is arranged on the shell and connected with the driving device, and the driving end of the lifting device is fixedly connected with the bottom of the workbench; the auxiliary supporting device is arranged on the shell and positioned outside the lifting device, the bottom of the auxiliary supporting device is fixedly connected with the shell, and the top of the auxiliary supporting device is fixedly connected with the bottom of the workbench; the lifting device is positioned in the auxiliary supporting device;

the driving device comprises a lifting motor, a first gear, a second gear and a lifting rod; the lifting motor is arranged on the cross beam frame through a motor base and is fixedly connected with the cross beam frame, and an output shaft of the lifting motor is in transmission connection with the first gear; the lifting rod is vertically arranged in the chassis, and two ends of the lifting rod are respectively connected with the top and the bottom of the chassis through bearings; the lifting rod is provided with an external thread; the second gear is arranged on the lifting rod and is in meshed transmission with the first gear, the inner side surface of the second gear is provided with internal threads and is in threaded connection with the lifting rod, and the second gear is driven by the lifting rod to move up and down.

2. The dual scissor lift mechanism of claim 1, wherein the lift device comprises a pusher block, a Y-shaped module, and a lift module; the pushing block is fixedly arranged on the second gear, is connected with the lifting rod in a sliding manner and is driven by the second gear to move up and down; one end of the Y-shaped module is hinged with the pushing block, and the other end of the Y-shaped module is hinged with the lifting module and drives the lifting module to unfold or fold; one end of the lifting module is arranged on the shell, and the other end of the lifting module is connected with the bottom of the workbench.

3. A dual scissor lift mechanism as claimed in claim 2 wherein the lift module is formed from sets of first scissor fold configurations longitudinally end to end; the first scissors folding structure is at least provided with two groups in the transverse direction and comprises a first connecting rod, a second connecting rod and a first stabilizing rod; the first connecting rod and the second connecting rod are arranged in an X shape and are hinged in the middle, and two ends of the first connecting rod are respectively hinged with the second connecting rod and the first connecting rod of the front group and the rear group of the first scissors in a folding structure; the first stabilizer bar is arranged between two groups of first scissors folding structures which are adjacent in the transverse direction, and two ends of the first stabilizer bar are fixedly connected with the first connecting rod or the second connecting rod respectively.

4. The dual scissor lift mechanism of claim 3, wherein the first scissor fold configuration further comprises a first stabilizing plate; the first stabilizing plate is arranged between two groups of transversely adjacent first scissors folding structures, and two ends of the first stabilizing plate are fixedly connected with the first connecting rod or the second connecting rod respectively.

5. The dual scissor lift mechanism of claim 2 wherein the Y-shaped modules are disposed on either side of the pusher block and include a first push rod, a second push rod, a third push rod, and a second stabilizer plate; the first push rod is longitudinally arranged, the bottom of the first push rod is hinged with the pushing block, and the top of the first push rod is hinged with the joint of the second push rod and the third push rod respectively; one end of the second push rod is hinged with one end of the third push rod; the other end of the second push rod and the other end of the third push rod are respectively hinged with the joint of the first connecting rod and the second connecting rod; the second stabilizing plate is arranged between the Y-shaped modules at two sides, and two ends of the second stabilizing plate are fixedly connected with the second push rod and the third push rod respectively.

6. A dual scissor lift mechanism as claimed in claim 1 wherein the secondary support means is formed by groups of second scissor fold configurations longitudinally end to end; the second scissors folding structure is at least provided with two groups in the transverse direction and comprises a third connecting rod, a fourth connecting rod and a second stabilizing rod; the third connecting rod and the fourth connecting rod are arranged in an X shape and are hinged in the middle, and two ends of the third connecting rod are respectively hinged with the fourth connecting rod and the first connecting rod of the front group and the rear group of the second scissors in a folding structure; the second stabilizer bar is arranged between two groups of second scissors folding structures which are adjacent in the transverse direction, and two ends of the second stabilizer bar are fixedly connected with the third connecting rod or the fourth connecting rod respectively.

7. The dual scissor lift mechanism of claim 6, wherein the second scissor fold configurations further comprise a third stabilizer plate and a fourth stabilizer plate disposed between two laterally adjacent sets of second scissor fold configurations; the third stabilizing plate is arranged on the fourth stabilizing plate and is perpendicular to the fourth stabilizing plate; and two ends of the third stabilizing plate and the fourth stabilizing plate are fixedly connected with the third connecting rod or the fourth connecting rod respectively.