CN218863798U - Electric lifting frame - Google Patents

Abstract

The application discloses electric crane. In the electric lifting frame, a first lifting pipe is movably connected with a first bearing pipe, and a second lifting pipe is movably connected with a second bearing pipe; the driving assembly comprises a transmission shaft and a driving piece, the driving piece is arranged on the first bearing pipe or the base, and the driving piece is used for driving the transmission shaft to rotate; first drive assembly sets up on first bearing pipe, and second drive assembly sets up on the second bearing pipe, and first drive assembly is connected to the one end of transmission shaft, and second drive assembly is connected to the other end of transmission shaft, and the transmission shaft goes up and down through the relative first bearing pipe of first drive assembly drive first fall way, and the transmission shaft goes up and down through the relative second bearing pipe of second drive assembly drive second fall way. The electric lifting frame can reduce the load of the lifting pipe, reduce the power consumption of the driving part and enable the lifting transmission to be more stable.

Description

Electric lifting frame

Technical Field

The application relates to the field of lifting devices, in particular to an electric lifting frame.

Background

Along with the more and more developed science and technology of modern society, often need display device just can carry out brief report meeting, at present, can mainly include the wall stores pylon, the metal frame of manual regulation formula, with electric power lift frame etc. with display device erector that sets up.

The Chinese patent with the application number of 202021197023.3 discloses a remote control electric lifting frame, which comprises a supporting frame and a lifting frame, wherein the lifting frame is movably connected with the supporting frame, a control assembly and a transmission assembly are arranged on the lifting frame, the transmission assembly comprises a mounting seat, a rotating rod and a worm, and the control assembly comprises a controller and a driving motor.

Among the electronic crane of prior art, control assembly and drive assembly all locate the crane on, cause the load of crane great, influence the stationarity that the crane goes up and down, cause driven reliability relatively poor.

SUMMERY OF THE UTILITY MODEL

The main technical problem who solves of this application provides an electric crane to solve prior art, electric crane's the fall way the load is great, the relatively poor technical problem of driven reliability.

In order to solve the technical problem, the application adopts a technical scheme that: provide an electronic crane, this electronic crane includes: a base; the first bearing pipe and the second bearing pipe are arranged at intervals and arranged on the base; the first lifting pipe is movably connected with the first bearing pipe, and the second lifting pipe is movably connected with the second bearing pipe; the first transmission assembly is arranged on the first bearing pipe, and the second transmission assembly is arranged on the second bearing pipe; drive assembly, including transmission shaft and driving piece, first drive assembly is connected to the one end of transmission shaft, and second drive assembly is connected to the other end of transmission shaft, and on the driving piece was fixed in first bearing pipe or base, the driving piece was used for driving the transmission shaft and rotates, and the transmission shaft goes up and down through the first relatively first bearing pipe of first drive assembly drive first fall way, and the transmission shaft goes up and down through the second relatively second bearing pipe of second drive assembly drive second fall way.

Furthermore, the driving piece is arranged at the bottom of the base; or the base is provided with an accommodating space, and the driving piece is fixed in the accommodating space.

Furthermore, the electric lifting frame further comprises a power module, the power module is fixed on the base, and the power module is used for providing power for the driving piece.

Furthermore, the electric lifting frame further comprises a control module, the control module is fixed on the base, and the control module is connected with the driving piece and used for controlling the driving piece.

Furthermore, the electric lifting frame further comprises a bearing part, one end of the bearing part is fixed on the first lifting pipe, the other end of the bearing part is fixed on the second lifting pipe, and the bearing part is used for bearing the display equipment.

Further, the display device is connected with the control module and interacts with the control module.

Furthermore, the transmission shaft is a telescopic shaft, the telescopic shaft at least comprises a first telescopic joint and a second telescopic joint, and the first telescopic joint and the second telescopic joint are movably connected, or the transmission shaft is an integrally arranged shaft.

Further, first transmission assembly includes first lead screw and first gear box, first gear box is fixed in on the first ascending and descending pipe, first lead screw activity is worn to establish in first ascending and descending pipe, second transmission assembly includes second lead screw and second gear box, the second gear box is fixed in on the second bears the weight of the pipe, the second lead screw activity is worn to locate in the second ascending and descending pipe, the one end and the first lead screw of transmission shaft pass through first gear box meshing, the other end and the second lead screw of transmission shaft pass through the meshing of second gear box, the transmission shaft rotates and drives first lead screw and second lead screw rotation, so that first ascending and descending pipe and second ascending and descending pipe realize the lift.

Further, the first elevator tube comprises at least one first tube, the at least one first tube being elevatable relative to the first carrier tube; the second elevator tube includes at least one second tube that is elevatable relative to the second load bearing tube.

Further, the bottom of base is provided with the movable pulley.

The beneficial effect of this application is: different from the situation of the prior art, in the electric lifting frame, the first lifting pipe is movably connected with the first bearing pipe, and the second lifting pipe is movably connected with the second bearing pipe; the first transmission assembly is arranged on the first bearing pipe, the second transmission assembly is arranged on the second bearing pipe, one end of the transmission shaft is connected with the first transmission assembly, the other end of the transmission shaft is connected with the second transmission assembly, the driving piece is fixed on the first bearing pipe or the base, the driving piece is used for driving the transmission shaft to rotate, the transmission shaft drives the first lifting pipe to lift relative to the first bearing pipe through the first transmission assembly, and the transmission shaft drives the second lifting pipe to lift relative to the second bearing pipe through the second transmission assembly. The electric lifting frame can reduce the load of the lifting pipe, so that the lifting pipe can be lifted more stably, and the power consumption of the driving piece can be reduced; in addition, this application adopts a driving piece just can carry out lift control to first fall way and second fall way simultaneously, simple structure, and the cost is lower.

Drawings

Fig. 1 is a schematic structural view of an embodiment of an electric crane provided in the present application;

figure 2 is an exploded schematic view of the motorized lift bracket shown in figure 1;

fig. 3 is a sectional view of the electric crane shown in fig. 1;

fig. 4 is a partial structural schematic view of the electric crane shown in fig. 1;

FIG. 5 is a schematic structural view of the first transmission assembly shown in FIG. 3;

FIG. 6 is a schematic structural view of an embodiment of the propeller shaft shown in FIG. 3;

fig. 7 is a schematic structural view of another embodiment of the propeller shaft shown in fig. 3.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The term "first" in this application is used for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise.

The application provides an electric lifting frame, this electric lifting frame can be used for the fixed thing of waiting to hold, and adjusts the height of waiting to hold the thing, should wait to hold the thing can carry out altitude mixture control's article etc. for display device, detecting instrument or other needs, will use below to wait to hold the thing as the display device example, introduces in detail the electric lifting frame of this application. The application provides an electric lifting frame's simple structure, the equipment of being convenient for, the cost is lower, and has higher reliability.

Referring to fig. 1, 2, 3 and 4, fig. 1 is a schematic structural view of an embodiment of an electric crane provided in the present application, fig. 2 is an exploded schematic view of the electric crane shown in fig. 1, and fig. 3 is a schematic sectional structural view of the electric crane shown in fig. 1, wherein the electric crane 10 includes: the lifting device comprises a base 21, a first bearing pipe 11 and a second bearing pipe 12 which are fixed on the base 21 and are arranged at intervals, a first lifting pipe 13 movably connected with the first bearing pipe 11, a second lifting pipe 14 movably connected with the second bearing pipe 12, a first transmission assembly 16 (shown in figure 3) arranged on the first bearing pipe 11, a second transmission assembly 17 (shown in figure 3) arranged on the second bearing pipe 12, and a driving assembly 15 (shown in figure 4) connected with the first transmission assembly 16 and the second transmission assembly 17.

The base 21 is used to support the first carrier pipe 11 and the second carrier pipe 12. The base 21 is not limited to a disc, a bracket, or the like, as long as it functions as a support.

The base 21 may be integrally formed with the first carrier pipe 11 and the second carrier pipe 12 to improve structural stability. In other embodiments, the base 21 may be detachably connected to the first carrier tube 11 and the second carrier tube 12.

As shown in fig. 3, the first transmission assembly 16 is disposed on the first carrier pipe 11, the second transmission assembly 17 is disposed on the second carrier pipe 12, and the first transmission assembly 16 and the second transmission assembly 17 are used for power steering and power transmission. For the construction of the first transmission assembly 16 and the second transmission assembly 17, reference is made to the following description of the embodiments.

As shown in fig. 3 and 4, the driving assembly 15 includes a transmission shaft 151 and a driving member 152, one end of the transmission shaft 151 is connected to the first transmission assembly 16, and the other end of the transmission shaft 151 is connected to the second transmission assembly 17. The driving member 152 is fixed on the first supporting tube 11 or the base 21, and the driving member 152 is connected to the transmission shaft 151 and is used for driving the transmission shaft 151 to rotate. The transmission shaft 151 drives the first lifting pipe 13 to lift relative to the first bearing pipe 11 through the first transmission assembly 16, and the transmission shaft 151 drives the second lifting pipe 14 to lift relative to the second bearing pipe 12 through the second transmission assembly 17. That is to say, in this application, the driving piece 152 controls the first elevator pipe 13 and the second elevator pipe 14 through the transmission shaft 151 at the same time, and through this kind of mode, can simplify the structure of electric crane 10, practice thrift the cost, and can make first elevator pipe 13 and second elevator pipe 14 realize synchronous lift.

Compared with the driving component 15 arranged on the lifting pipe or between the two lifting pipes, the arrangement mode of the lifting pipe driving device can reduce the load of the lifting pipes, enables the transmission of the lifting pipes to be more stable, and can reduce the power consumption of the driving component 152; the driving piece 152 is fixed on the base 21 or the bearing pipe, has better fixing strength, is not easy to shake and is reliable to install; in addition, the setting mode of this application can reduce the interference between drive assembly 15 and other parts, improves driven stability to improve electric crane 10's reliability.

In this embodiment, the driving member 152 may be a motor. In other embodiments, the driving member 152 may be another driving member capable of rotating the transmission shaft 151.

In one embodiment, the driving member 152 can be fixed on the first supporting tube 11 by a mounting base (not shown), the driving member 152 can be disposed in the mounting base, and a gear set can be disposed in the mounting base, and an output end of the driving member 152 is engaged with the transmission shaft 151 by the gear set, so that the driving member 152 drives the transmission shaft 151 to rotate.

In another embodiment, the base 21 forms an accommodating space (not shown), and the driving element 152 may be disposed in the accommodating space, or the driving element 152 may be fixed at the bottom of the base 21, so as to prevent the driving element 152 from being exposed, and further improve the appearance uniformity and the aesthetic property of the whole lifting frame.

Further, as shown in fig. 3, the first transmission assembly 16 includes a first gear box 160 and a first lead screw 161, the first gear box 160 is fixed on the first supporting tube 11, one end of the first lead screw 161 is connected to the first gear box 160, and the other end of the first lead screw 161 is movably disposed in the first lifting tube 13. The second transmission assembly 17 includes a second gear box 170 and a second lead screw 171, the second gear box 170 is fixed on the second carrier tube 12, one end of the second lead screw 171 is connected with the second gear box 170, the other end of the second lead screw 171 movably penetrates through the second lifting tube 14, one end of the transmission shaft 151 is connected with the first gear box 160, one end of the transmission shaft 151 is engaged with the first lead screw 161 through the first gear box 160, the other end of the transmission shaft 151 is connected with the second gear box 170, the other end of the transmission shaft 151 is engaged with the second lead screw 171 through the second gear box 170, the transmission shaft 151 rotates to drive the first lead screw 161 and the second lead screw 171 to rotate, and further drives the first lifting tube 13 and the second lifting tube 14 to lift.

Further, as shown in fig. 5, the first gear box 160 includes a fixing base 165, a first gear 162 and a second gear 163, one end of the transmission shaft 151 is inserted into the fixing base 165 and connected to the first gear 162, the first lead screw 161 is connected to the second gear 163, the first gear 162 is engaged with the second gear 163, and the transmission shaft 151 is engaged with the first lead screw 161 via the first gear 162 and the second gear 163 to perform power steering and transmission. That is, the transmission shaft 151 rotates to drive the first gear 162 to rotate, the first gear 162 drives the second gear 163 to rotate, and the second gear 163 drives the first screw 161 to rotate.

Furthermore, as shown in fig. 5, the first gear box 160 further includes a connecting shaft 164 and a plurality of bearings 166, the first gear 162 is sleeved on an outer surface of the connecting shaft 164, the connecting shaft 164 forms a fixing cavity (not shown), one end of the transmission shaft 151 is embedded in the fixing cavity, and the transmission shaft 151 is connected with the first gear 162 through the connecting shaft 164. The bearing 166 is fixed on the fixing base 165, and one end of the transmission shaft 151 and one end of the first lead screw 161 both extend into the fixing base 165 through the bearing 166, which will not be specifically described herein with respect to the arrangement of the bearing 166 as will be understood by those skilled in the art.

It will be appreciated that the structure of the second gearbox 170 is the same as the first gearbox 160, and reference may be made to the structure of the second gearbox 170 as described above in relation to the first gearbox 160. The other end of the transmission shaft 151 is engaged with the second lead screw 171 in the same manner as the transmission shaft 151 is engaged with the first lead screw 161, and a description thereof will not be repeated.

Through the above arrangement mode, the transmission shaft 151 can drive the first lead screw 161 and the second lead screw 171 to rotate simultaneously when rotating, so that the first lifting pipe 13 and the second lifting pipe 14 can be controlled by one driving part 152, and the first lifting pipe 13 and the second lifting pipe 14 can be ensured to lift synchronously.

Further, as shown in fig. 3 to 5, a first outer cylinder 131 is disposed in the first elevator tube 13, the first outer cylinder 131 is connected to the first elevator tube 13, specifically, the first outer cylinder 131 may be fixedly connected to a sidewall of the first elevator tube 13, or the first outer cylinder 131 may be further fixedly connected to a top of the first elevator tube 13, a second outer cylinder 141 is disposed in the second elevator tube 14, the second outer cylinder 141 is connected to the second elevator tube 14, specifically, the second outer cylinder 141 may be fixedly connected to a sidewall of the second elevator tube 14, or the second outer cylinder 141 may be further fixedly connected to a top of the second elevator tube 14, both the first outer cylinder 131 and the second outer cylinder 141 are provided with internal threads, the first lead screw 161 is in threaded connection with the first outer cylinder 131, and the second lead screw 171 is in threaded connection with the second outer cylinder 141. Since the first gear box 160 is fixed to the first carrier pipe 11 and the second gear box 170 is fixed to the second carrier pipe 12, the first elevating pipe 13 can be elevated with respect to the first carrier pipe 11 when the first screw 161 rotates with respect to the first outer cylinder 131, and the second elevating pipe 14 can be elevated with respect to the second carrier pipe 12 when the second screw 171 rotates with respect to the second outer cylinder 141.

Further, the first elevator tube 13 includes at least one first tube (not shown) that can be elevated and lowered with respect to the first carrier tube 11. Specifically, the first elevator tube 13 may include a first tube that is elevated relative to the first carrier tube 11. Alternatively, the first lifting pipe 13 may also include two first pipe members, wherein the two first pipe members are capable of sliding relative to each other and lifting relative to the first carrying pipe 11, and when one of the first pipe members is lifted to the maximum stroke, the other first pipe member is lifted. Alternatively, the two first pipes may be lifted and lowered simultaneously. The lifting stroke of the first lifting pipe 13 is increased by providing at least one first pipe.

The second elevator tube 14 may also include at least one second tubular (not shown) that is raised and lowered relative to the second carrier tube 12. It will be understood that the number and the arrangement of the at least one second tubular element may be identical to the at least one first tubular element, and will not be described again here.

The quantity of the first pipe fitting and the second pipe fitting can be flexibly set according to the actual lifting height so as to meet the lifting stroke requirements of the first lifting pipe 13 and the second lifting pipe 14. Meanwhile, the structural strength of the first lifting pipe 13 and the second lifting pipe 14 can be increased by the plurality of first pipe fittings and the plurality of second pipe fittings, and the lifting stability is ensured.

Further, as shown in fig. 2, in the present embodiment, the transmission shaft 151 is a telescopic shaft. That is to say, the length of transmission shaft 151 can stretch out and draw back, and this kind of setting, on the one hand, makes things convenient for the installation of transmission shaft 151. The drive shaft 151 may be reduced in length prior to installation so that it can be placed between the first carrier tube 11 and the second carrier tube 12, and the drive shaft 151 may be extended in length during installation so that it can be connected to the first drive assembly 16 and the second drive assembly 17. On the other hand, the whole installation of the electric crane 10 is also facilitated, and particularly, in the related art, when the crane is installed, the upright post on one side must be installed firstly, then the transmission shaft is installed, and then the upright post on the other side is installed, and if the installation sequence is wrong, the assembly can not be caused. The scheme of the application has no requirement on the installation sequence, and the assembly can be completed no matter whether the bearing pipe on one side is installed firstly and then the transmission shaft 151 is installed, or the bearing pipes on two sides are installed firstly and then the transmission shaft 151 is installed.

In other embodiments, the transmission shaft 151 may be an integrally disposed shaft, so that the reliability of the transmission structure may be improved.

In one embodiment, as shown in fig. 6, the drive shaft 151 may include a first telescopic joint 156, a second telescopic joint 153, and a third telescopic joint 154. The second telescopic joint 153 is located between the first telescopic joint 156 and the third telescopic joint 154, the first telescopic joint 156 is movably connected with one end of the second telescopic joint 153, and the other end of the second telescopic joint 153 is movably connected with the third telescopic joint 154. The first telescopic joint 156 can be shortened and lengthened relative to the second telescopic joint 153, and the third telescopic joint 154 can be shortened and lengthened relative to the second telescopic joint 153.

As shown in fig. 6, at the junction of first telescopic joint 156 and second telescopic joint 153 and/or the junction of second telescopic joint 153 and third telescopic joint 154, retaining member 155 can be provided, retaining member 155 is used for locking each junction, when needs shrink transmission shaft 151, then loosen retaining member 155, after transmission shaft 151 adjusts to suitable length, then lock the junction through retaining member 155, so, in order to improve the structural stability of transmission shaft 151.

In another embodiment, as shown in fig. 7, at the connection point of the first telescopic joint 156 and the second telescopic joint 153 and/or the connection point of the second telescopic joint 153 and the third telescopic joint 154, a screw 157 may be provided to fasten the connection points by the screw 157.

Alternatively, the telescopic shaft may be a hexagonal rod connection, for example, the first telescopic joint 156 and the third telescopic joint 154 may be an outer hexagonal rod, and the second telescopic joint 153 may be an inner hexagonal rod. Alternatively, the first telescopic joint 156 and the third telescopic joint 154 are inner hexagonal rods, and the second telescopic joint 153 is an outer hexagonal rod. In this way, the structure of the transmission shaft 151 is simplified, and the extension and retraction of the transmission shaft 151 are facilitated. In other embodiments, the telescopic shaft may also be in other ways that can realize transmission connection, such as key connection, "D" type hole and "D" type column connection, etc.

In other embodiments, the transmission shaft 151 may include only the first telescopic joint 156 and the second telescopic joint 153, and the first telescopic joint 156 and the second telescopic joint 153 are movably connected. In this way, the extension and contraction of the drive shaft 151 can be achieved.

Further, as shown in fig. 1 and 2, the electric crane 10 further includes a carrier 18, one end of the carrier 18 is fixed on the first elevator tube 13, the other end of the carrier 18 is fixed on the second elevator tube 14, the carrier 18 is used for carrying the object to be carried, for example, the carrier 18 can be used for fixing and supporting a display device (not shown). The display device is fixed on the electric lifting frame 10 and can be lifted by the electric lifting frame 10. The bearing member 18 may be a bearing frame, and the bearing member 18 may also be a bearing plate, which may be selected according to actual situations.

In the related art, the transmission shaft is disposed on the supporting member, and this arrangement may cause the weight to be applied to the transmission shaft to bend the transmission shaft when the supporting member bears a load, which may affect the transmission effect. In this application, transmission shaft 151 is fixed in on the carrier tube, and on driving piece 152 was fixed in carrier tube or base 21, mutually noninterfere with bearing 18, even when bearing 18 and bearing a heavy burden, on weight also can not be exerted transmission shaft 151, did not influence the transmission effect of transmission shaft 151.

Further, as shown in fig. 2, the electric lifting frame 10 further comprises a control module 19, the control module 19 is connected to the driving element 152, and the control module 19 is used for controlling the driving element 152, so that the electric lifting frame 10 can be automatically lifted. When receiving an instruction from an external device (the external device includes but is not limited to a hand controller, an external button, and the like), the control module 19 sends an instruction to the driving member 152, and the driving member 152 drives the first lead screw 161 and the second lead screw 171 to rotate through the transmission shaft 151, the first transmission assembly 16, and the second transmission assembly 17, so that the first lifting pipe 13 and the second lifting pipe 14 on both sides can simultaneously perform lifting movement.

In this embodiment, the control module 19 is fixed on the base 21. In this way, the load on the elevator tube can be reduced, and the stability of the installation of the control module 19 is also improved. Preferably, the control module 19 can be fixed in the accommodating space formed by the base 21, or the control module 19 can also be fixed at the bottom of the base 21, so as to further improve the uniformity and the aesthetic degree of the whole lifting frame.

Alternatively, a display device may be coupled to the control module 19 and interact with the control module 19. Specifically, the control module 19 may connect the display device through a wire or wirelessly and perform data interaction with the display device. The display device may be provided with an interactive button, and the user controls the control module 19 through the interactive button on the display device to realize the lifting of the display device. By this way, the display equipment is fully utilized, and the structure of the electric lifting frame 10 is simplified.

Further, as shown in fig. 2, the electric crane 10 further includes a power module 22, and the power module 22 is used for providing power for the driving member 152. The power module 22 is fixed on the base 21. Preferably, the power module 22 may be fixed in the accommodating space formed by the base 21, or the power module 22 is fixed at the bottom of the base 21, so as to prevent the power module 22 from being exposed outside, and improve the uniformity and the aesthetic degree of the whole crane.

Further, as shown in fig. 1 and 2, a sliding wheel 24 is provided at the bottom of the base 21, and the sliding wheel 24 is used for moving the electric crane 10 to meet the requirements of different places on the display device. The sliding wheels 24 may be universal wheels.

To sum up, the electric lifting frame 10 of the application can lighten the load of the lifting pipe, reduces the power consumption of the driving part 152, and the lightening of the load can make the lifting transmission more stable. Moreover, the driving assembly 15 and the bearing piece 18 do not interfere with each other, and by adopting the mode, the transmission reliability of the driving assembly 15 can be improved; in addition, this application can control first elevator pipe 13 and second elevator pipe 14 simultaneously through a driving piece 152, simplifies the structure of electric crane 10, reduces electric crane 10's cost.

The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims (10)

1. The utility model provides an electric crane, its characterized in that, electric crane includes:

a base;

the first bearing pipe and the second bearing pipe are arranged at intervals and arranged on the base;

the first lifting pipe is movably connected with the first bearing pipe, and the second lifting pipe is movably connected with the second bearing pipe;

the first transmission assembly is arranged on the first bearing pipe, and the second transmission assembly is arranged on the second bearing pipe;

drive assembly, including transmission shaft and driving piece, the one end of transmission shaft is connected first drive assembly, the other end of transmission shaft is connected second drive assembly, the driving piece is fixed in on first bore pipe or the base, the driving piece is used for the drive the transmission shaft rotates, the transmission shaft passes through first drive assembly drive first fall way is relative first bore the pipe and go up and down, the transmission shaft passes through second drive assembly drive the second fall way is relative the second is bore the pipe and go up and down.

2. The electric lifting frame according to claim 1, wherein the driving member is provided at the bottom of the base; alternatively, the first and second electrodes may be,

the base is formed with the accommodation space, the driving piece is fixed in the accommodation space.

3. The electric lifting frame according to claim 1, further comprising a power module fixed to the base, the power module being configured to provide power to the driving member.

4. The electric lifting frame according to claim 1, further comprising a control module fixed to the base, the control module being connected to the driving member and being configured to control the driving member.

5. The motorized lift crane of claim 4, further comprising a load bearing member having one end secured to the first elevator tube and another end secured to the second elevator tube, the load bearing member configured to bear a display device.

6. An electric crane according to claim 5, wherein the display device is connected to and interacts with the control module.

7. The electric lifting frame according to claim 1, wherein the transmission shaft is a telescopic shaft, the telescopic shaft at least comprises a first telescopic joint and a second telescopic joint, and the first telescopic joint and the second telescopic joint are movably connected, or the transmission shaft is an integrally arranged shaft.

8. The electric lifting frame according to claim 1, wherein the first transmission assembly comprises a first lead screw and a first gear box, the first gear box is fixed on the first bearing pipe, the first lead screw is movably arranged in the first lifting pipe in a penetrating manner, the second transmission assembly comprises a second lead screw and a second gear box, the second gear box is fixed on the second bearing pipe, the second lead screw is movably arranged in the second lifting pipe in a penetrating manner, one end of the transmission shaft is engaged with the first lead screw through the first gear box, the other end of the transmission shaft is engaged with the second lead screw through the second gear box, and the transmission shaft rotates to drive the first lead screw and the second lead screw to rotate so as to lift the first lifting pipe and the second lifting pipe.

9. The motorized lift frame of claim 1, wherein the first lift tube includes at least one first tubular member that is liftable with respect to the first load tube;

the second elevator tube includes at least one second tube that is elevatable relative to the second load bearing tube.

10. An electric lifting frame as claimed in claim 1, wherein the base is provided at its bottom with a sliding wheel.

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