CN115342288A - Folding cable manager and automatic lifting platform of multiple projectors thereof - Google Patents

Abstract

The invention provides a folding cable manager and an automatic lifting platform of a plurality of projectors thereof, wherein the folding cable manager comprises: the cable tube bundle comprises a plurality of cable tube bundle pieces, wherein two side walls of each cable tube bundle piece are bent into grooves so as to define a cable channel with the bottom wall of each cable tube bundle piece to contain cables, the head end and the tail end of each cable tube bundle piece respectively extend out of a connecting shaft arm in an opposite-inclined mode, the cable tube bundle pieces are connected through the connecting shaft arms through rotating shafts to form a serial connection in an end-to-end mode, and a lead space is defined between openings at two ends of each cable channel and the rotating shafts. Therefore, the problem of cable arrangement during equipment hoisting is solved.

Description

Folding cable manager and automatic lifting platform of multiple projectors thereof

Technical Field

The invention relates to the field of stage/cinema hoisting equipment, in particular to a folding cable manager and an automatic lifting platform of multiple projectors thereof.

Background

In an existing multimedia immersive experience project, in order to display a huge picture, a plurality of projectors are generally used to form a picture splicing and fusing mode. Consequently mean to regulate and control many huge projectors of quantity and put with modes such as default orientation, angle, if however adopt traditional furred ceiling mode to set up, then the installation degree of difficulty is great earlier stage, and is unfavorable for later stage maintenance and overhaul, and if directly put on the stage, then both occupied stage space, again pleasing to the eye to the equipment cable is also difficult for hiding and tube bank, causes the potential safety hazard easily.

Therefore, how to flexibly install the projectors with huge number is ensured to realize the high-quality image playing effect, and the method is beneficial to the later-stage safe and convenient maintenance and is an important factor for testing whether the project can be continuously and stably operated.

Therefore, the inventor considers the design of the hoisting technology of the traditional stage lamp, however, in practice, the hoisting rod scheme suitable for the traditional stage lamp is not suitable for fixing a large number of projectors, the projector is heavier than the stage lamp, and each projector has the requirement on the projection direction and angle, so that the hanging and mounting difficulty on the support is high, and meanwhile, the inventor also notes that the hoisting scheme in the prior art does not consider the arrangement problem of equipment cables, so that the problems of winding or shielding projection and the like of the equipment cables are easily caused in the hoisting and lifting process, and the projection accidents are easily caused.

Disclosure of Invention

Therefore, the invention mainly aims to provide a folding type cable manager and an automatic lifting platform of a plurality of projectors thereof, so as to solve the problem of cable arrangement during equipment lifting.

To achieve the above object, according to a first aspect of the present invention, there is provided a folding cable manager including: the cable tube bundle comprises a plurality of cable tube bundle pieces, wherein two side walls of each cable tube bundle piece are bent into grooves so as to define a cable channel with the bottom wall of each cable tube bundle piece to contain cables, the head end and the tail end of each cable tube bundle piece respectively extend out of a connecting shaft arm in an opposite-inclined mode, the cable tube bundle pieces are connected through the connecting shaft arms through rotating shafts to form a serial connection in an end-to-end mode, and a lead space is defined between openings at two ends of each cable channel and the rotating shafts. When the cable tube bundle pieces are stretched, the cable is pressed with the tracing to be kept regular in the wire space through the rotating shaft in the stretching process, and when the cable tube bundle pieces are stacked, the bent cable exposed at the wire space is bundled in the wire space through the rotating shaft, and a space required by bulging is provided for the bent part of the cable through the wire space.

In a possible preferred embodiment, the folding cable manager further comprises: and a folding guide piece arranged on the outer side wall of the cable channel of each cable tube bundle, wherein the head of the folding guide piece extends outwards of the cable tube bundle in an inclined state to form a guide head. When the cable tube bundles are stacked, the cable tube bundles can be accurately stacked by being limited and guided by the guide head of the folding guide piece.

To achieve the above object, according to a second aspect of the present invention, there is provided a multi-projector automatic lifting platform comprising: the foldable cable manager comprises a lifting device, a loading platform and a foldable cable manager, wherein the loading platform is connected with the lifting end of the lifting device to form a hoisting structure, the head end and the tail end of the foldable cable manager are respectively connected with the lifting device and the loading platform to synchronously drive the foldable cable manager to switch between a stretching state and a stacking state along with the lifting of the loading platform, and cables inserted into the foldable cable manager by tube bundles make corresponding postures, wherein the foldable cable manager is made of any one of the foldable cable managers.

In a possible preferred embodiment, the lifting device comprises: a suspension frame, a lifter, a controller; the loading platform comprises: the lifting device comprises a lifting frame and a platform base, wherein the lower part of the lifting frame is connected with the platform base, a lifting point extends outwards from the lower part of the top of the lifting frame, the lifting end of the lifter is connected with the lifting point, and the lifter is fixed on a suspension frame and connected with a controller.

In a possible preferred embodiment, the top of the hanger is provided with a contact piece and a positioning piece, the suspension frame is provided with a positioning hole, a top stopper and a buffer piece, the top stopper is connected with the controller, so that when the hanger is lifted to the limit height through the lifter, the positioning piece is inserted into the positioning hole, the contact piece abuts against the buffer piece, and the top of the hanger triggers the top stopper to stop the lifter through the controller.

In a possible preferred embodiment, a tilt angle sensor is arranged on the hanger frame near the hanging point, and the tilt angle sensor is connected with the controller, so that when the hanging point on one side of the hanger frame is inclined, the tilt angle sensor is triggered to enable the lifter to adjust the lifting height of the hanging point on the side through the controller.

In a possible preferred embodiment, the bottom of the platform base is provided with a bottom stopper, and the bottom stopper is connected with the controller so as to trigger the bottom stopper to stop the operation of the lifter through the controller when the platform base descends to the limit height through the lifter.

In order to achieve the above object, according to a third aspect of the present invention, there is provided a multi-projector automatic lifting platform comprising: a lift device, a loading platform, a collapsible cable manager, wherein the lift device comprises: a suspension frame, a lifter, a controller; the loading platform comprises: the foldable cable manager comprises a hanger and a platform base, wherein the lower part of the hanger is connected with the platform base, a lifting point extends outwards from the lower part of the top of the hanger, the lifting end of a lifter is connected with the lifting point, the lifter is fixed on a suspension frame and is connected with a controller, the head end and the tail end of the foldable cable manager are respectively connected with the suspension frame and the hanger so as to synchronously drive the foldable cable manager to switch between a stretching/stacking state along with the lifting of the hanger, and a cable inserted into the foldable cable manager by a tube bundle makes a corresponding gesture, wherein the foldable cable manager comprises: the cable tube bundle comprises a plurality of cable tube bundle pieces, wherein the cable tube bundle pieces are respectively provided with connecting shaft arms which extend outwards in a reverse inclined manner from head to tail, the cable tube bundle pieces are connected in series by virtue of rotating shafts of the connecting shaft arms from head to tail, two sides of each cable tube bundle piece are folded to form a cable channel, the outer side wall of the cable channel is further provided with a folding guide piece, and the head of the folding guide piece is inclined to extend out of the cable tube bundle piece.

In a possible preferred embodiment, a contact piece and a positioning piece are arranged at the top of the hanger, a bottom limiter is arranged at the bottom of the platform base, a positioning hole, a top limiter and a buffer piece are arranged on the suspension frame, wherein the top limiter and the bottom limiter are respectively connected with the controller, so that when the hanger is lifted to the limit height through the lifter, the positioning piece is inserted into the positioning hole, the contact piece is abutted against the buffer piece, and the top of the hanger triggers the top limiter to stop the lifter through the controller; when the platform base descends to the limit height through the lifter, the bottom limiter is triggered to stop the lifter through the controller.

In a possible preferred embodiment, an inclination angle sensor is arranged on the hanger close to the hanging point, the inclination angle sensor is connected with the controller, and when the hanging point on one side of the hanger inclines, the inclination angle sensor is triggered to enable the lifter to adjust the lifting height of the hanging point on the side through the controller.

The folding cable manager and the multi-projector automatic lifting platform thereof can stably bear a large number of projectors on a platform base with a horizontal angle, so that the projection direction and the angle of the projectors are more convenient and reliable to adjust and fix, and the folding cable manager is specially designed and adopts a mode of folding/stretching along with lifting so as to bundle equipment cables, so that when each cable bundle piece is stretched, the cables are pressed along with a partner in the stretching process through a rotating shaft to be kept regular in a wire space, and meanwhile, the rotating shaft of a connecting shaft arm is driven to be far away from an opening of a cable channel, so that the obstruction to the cable stretching is reduced.

On the other hand, through the multi-projector automatic lifting platform provided by the scheme, the maintenance work of the projector does not need to be carried out high-altitude climbing operation, and the projector is automatically lowered, so that maintenance personnel can overhaul and replace the projector on the ground, the maintenance and overhaul efficiency of the projector can be improved, the maintenance convenience is improved, and the working risk of the maintenance personnel is reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 to 3 are schematic structural views of a collapsible cable manager according to a first embodiment of the present invention in a collapsed state;

FIG. 4 is a schematic view illustrating the presence and absence of the inner shaft when the cable is bent, wherein the cable sheath without the inner shaft shows a broken state, according to the first embodiment of the present invention;

FIG. 5 is a schematic view showing a state where a cable harness is coupled to a rotary shaft via a coupling arm according to a first embodiment of the present invention;

FIG. 6 is a schematic view of the first embodiment of the present invention showing the cable harness extended with the hinge eventually moving away from the cable channel;

fig. 7 to 9 are schematic structural views illustrating the lowering of the multi-projector automatic lifting platform according to the second embodiment of the present invention;

fig. 10 to 13 are schematic structural views illustrating the multi-projector automatic lifting platform in the second embodiment of the present invention when being lifted;

fig. 14 is a schematic view showing a top stopper provided to the suspension frame in the second embodiment of the present invention;

FIG. 15 is a schematic structural view of a second embodiment of the present invention in which a bottom stopper is disposed at the bottom of the platform base.

Description of the reference numerals

The cable guide comprises a cable tube bundle 1, a lifting device 2, a loading platform 3, a cable 9, a cable channel 11, a wire groove 12, a connecting shaft arm 13, a rotating shaft 14, a folding guide piece 15, a suspension frame 21, a lifter 22, a hanger 31, a platform base 32, a hanging point 33, a ring chain 34, a contact piece 311, a positioning piece 312, a positioning hole 211, a top stopper 212, a buffer piece 213, an inclination angle sensor 331 and a bottom stopper 321.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the present product is conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. And the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in combination with the prior art as the case may be. Furthermore, the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. One or more of the illustrated components may be required or unnecessary, and the relative positions of the illustrated components may be adjusted according to actual needs.

(A)

Referring to fig. 1 to 6, in a first aspect of the present invention, there is provided a folding cable manager, including: a plurality of cable tube bundles 1, wherein two side walls of each cable tube bundle 1 are bent into grooves to define a cable channel 11 with the bottom wall of the cable tube bundle 1 for receiving cables. As shown in fig. 1, the grooves on the two side walls of the cable tube bundle 1 in this example are the trunking 12, which is used for holding the stacked cable tube bundle 1 above in addition to the cable bundle, and the trunking 12 structure can also reduce the weight and facilitate the cable installation and obstacle clearance.

Furthermore, the two ends of each cable tube bundle 1 are respectively and reversely inclined and extended with a connecting shaft arm 13, wherein as shown in fig. 1, one side of the connecting shaft arm 13 at the two sides of the cable tube bundle 1 is inclined upwards, and the other side is inclined downwards, and each cable tube bundle 1 is connected in series by the connecting shaft arm 13 and a rotating shaft 14, so that on one hand, a wire space can be defined between the two end openings of each cable channel 11 and the rotating shaft 14, and convenience is brought to the subsequent tube bundle and folding of cables. On the other hand, the connecting shaft mode enables the rotating shaft 14 to be basically aligned with the bottom surface of the cable tube bundle 1 stacked up and down and the side wall of the wire groove 12 for bearing when the cable tube bundle is folded and stretched, so that the cable is prevented from being interfered when the cable tube bundle is folded, and meanwhile, as shown in fig. 4, the connecting shaft can also be used as an inner shaft when the cable is bent, so that the cable is prevented from being broken when the cable is structured.

In addition, when each cable tube bundle 1 is stretched, the rotating shaft 14 can press the cables regularly in the wire space along with the tracing in the stretching process, so as to avoid the cables from being staggered in the stretching process, and when each cable tube bundle 1 is stacked, the bent cables exposed in the wire space are bundled in the wire space through the rotating shaft 14, and more importantly, when the cables are bent, as shown in fig. 4, the problem of the raised part of the bent part is often found, if the raised part is pressed intentionally, the problem of the broken sheath of the cables can be caused, so at the opening of the cable channel 11, namely the bent position of the cables, in the embodiment, the wire space is left between the connecting shaft arm 13 and the opening of the cable channel 11 through the extending connecting shaft arm 13, thereby providing the space required for the raised part of the cable bent part, and the rotating shaft 14 can also serve as the bent cables, so as to avoid the cables from being damaged.

On the other hand, it is worth mentioning that since the two side connecting arms 13 of the cable harness 1 are designed to be inclined upward and downward, respectively, in a side direction, the rotating shaft 14 is gradually away from the opening of the cable channel 11 when they are connected in series, as shown in fig. 5 to 6, in a stretching state, thereby reducing the obstruction of the cable stretching. Therefore, through the design of the cable tube bundle 1, the effects can be achieved at the same time, the problem that the cable is folded and damaged is solved, the cable is structured, and the problem that the cable is wound and scattered is avoided.

Further, in order to regulate the stacked state of the respective cable harnesses 1 in the folded state, the folding cable manager further includes: a folding guide piece 15, as shown in fig. 1 to 3, the folding guide piece 15 being provided on an outer side wall of the cable passage 11 of each of the cable tube members 1, wherein a head of the folding guide piece 15 extends outward of the cable tube member 1 in an inclined state to form a guide head. So that the cable tube bundles 1 can be accurately stacked by being restricted and guided by the guide head of the folding guide piece 15 when the cable tube bundles 1 are stacked.

(II)

Referring to fig. 7 to 15, in a second aspect of the present invention, there is provided an automatic lifting platform for multiple projectors, including: the foldable cable manager comprises a lifting device 2, a loading platform 3 and a foldable cable manager, wherein the loading platform 3 is connected with the lifting end of the lifting device 2 to form a hoisting device, the head end and the tail end of the foldable cable manager are respectively connected with the lifting device 2 and the loading platform 3 to synchronously drive the foldable cable manager to switch between a stretching state and a stacking state along with the lifting of the loading platform 3, and the cable inserted into the foldable cable manager is made into a corresponding posture by a tube bundle, wherein the foldable cable manager is made of any one of the foldable cable managers in the first embodiment. Therefore, a hoisting platform can be formed for stably and reliably bearing the plurality of projectors.

Specifically, in a preferred embodiment, the lifting device 2 comprises: a suspension frame 21, a lifter 22, a controller, wherein the lifter 22 is preferably an electric chain 34 hoist in the embodiment; the loading platform 3 includes: the lifting frame 31 and the platform base 32, wherein the lower part of the lifting frame 31 is connected with the platform base 32, a lifting point 33 extends outwards from the lower part of the top of the lifting frame 31, the electric chain 34 hoist is connected with the lifting point 33 through a chain 34, and the lifter 22 is fixed on the suspension frame 21 and connected with the controller.

As shown in fig. 7 to 10 and 14, in a preferred embodiment, the top of the hanger 31 is provided with a contact piece 311 and a positioning piece 312, the suspending frame 21 is provided with a positioning hole 211, a top stopper 212 and a buffer 213, wherein the top stopper 212 is connected to a controller (not shown in the figure), so that when the hanger 31 is lifted to a limit height by the lifter 22, the positioning piece 312 is inserted into the positioning hole 211, thereby ensuring that the contact piece 311 of the hanger 31 can accurately abut against the buffer 213, so that the top of the hanger 31 can accurately trigger the top stopper 212, and the lifter 22 stops operating by the controller.

In another preferred embodiment, in order to make the hanger 31 have a leveling function, an inclination sensor 331 is disposed on the hanger 31 near the hanging point 33, and the inclination sensor 331 is connected to the controller, so that when the hanging point 33 on one side of the hanger 31 is inclined, the inclination sensor 331 is triggered to make the lifter 22 adjust the lifting height of the hanging point 33 on the side through the controller, so that the loading platform 3 is always in a horizontal state, thereby safely and reliably carrying the upper projector, and avoiding the risks of projection angle error caused by the platform inclination or projector falling caused by the platform inclination.

On the other hand, as shown in fig. 15, in order to automatically control the descending limit of the platform, the bottom stopper 321 is disposed at the bottom of the platform base 32, and the bottom stopper 321 is connected to the controller, so that when the platform base 32 descends to the limit height through the elevator 22, the bottom stopper 321 is triggered to stop the operation of the elevator 22 through the controller.

In summary, the foldable cable manager and the multi-projector automatic lifting platform thereof provided by the invention can stably bear a large number of projectors on the platform base 32 with a horizontal angle, so that the projection direction and angle of the projectors are more convenient and reliable to adjust and fix, and in addition, the folding cable manager with a special design is adopted to bundle equipment cables in a folding/stretching mode along with lifting, so that each cable bundle piece 1 is stretched, the cables are pressed along with a partner in the stretching process through the rotating shaft 14 to be kept regular in a wire space, and meanwhile, the rotating shaft 14 of the connecting shaft arm 13 is driven to be far away from the opening of the cable channel 11, so that the obstruction to the cable stretching is reduced, and meanwhile, when each cable bundle piece 1 is stacked, the cables exposed in the wire space through the rotating shaft 14 are bent in the wire space, so that the cables are not misplaced due to folding extrusion, and the bent cables can be provided with a space required for raising and scattering through the wire space, thereby the bending angle of the cables can be increased when the cables are folded, the cables are not easy to be damaged when the cables are folded, the cables are prevented from being wound and distributed in the process of raising and scattering, and the cables are effectively protected.

On the other hand, through the automatic lifting platform for the multiple projectors, maintenance work on the projectors does not need to be carried out high-altitude climbing operation any more, the projectors are automatically lowered, and maintenance personnel can overhaul and replace the projectors on the ground, so that the maintenance efficiency of the projectors can be improved, the maintenance convenience is improved, and the working danger of the maintenance personnel is reduced.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The invention is to be limited only by the following claims, and their full scope and equivalents, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.

In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.

Claims (10)

1. A folding cable manager, comprising: the cable tube bundle comprises a plurality of cable tube bundle pieces, wherein two side walls of each cable tube bundle piece are bent into grooves so as to define a cable channel with the bottom wall of each cable tube bundle piece to contain cables, the head end and the tail end of each cable tube bundle piece respectively extend out of a connecting shaft arm in an opposite-inclined mode, the cable tube bundle pieces are connected through the connecting shaft arms through rotating shafts to form a serial connection in an end-to-end mode, and a lead space is defined between openings at two ends of each cable channel and the rotating shafts.

2. The folding cable manager of claim 1, further comprising: and a folding guide piece arranged on the outer side wall of the cable channel of each cable tube bundle, wherein the head of the folding guide piece extends outwards of the cable tube bundle in an inclined state to form a guide head.

3. A multi-projector automatic lifting platform is characterized by comprising: the foldable cable manager comprises a lifting device, a loading platform and a foldable cable manager, wherein the loading platform is connected with the lifting end of the lifting device to form a hoisting device, the head end and the tail end of the foldable cable manager are respectively connected with the lifting device and the loading platform so as to synchronously drive the foldable cable manager to switch between a stretching state and a stacking state along with the lifting of the loading platform, and the foldable cable manager makes corresponding postures by using cables inserted in the foldable cable manager, and is made by adopting the foldable cable manager as claimed in any one of claims 1 or 2.

4. The multi-projector robotic lift platform of claim 3, wherein the lift mechanism comprises: a suspension frame, a lifter, a controller; the loading platform comprises: the lifting device comprises a lifting frame and a platform base, wherein the lower part of the lifting frame is connected with the platform base, a lifting point extends outwards from the lower part of the top of the lifting frame, the lifting end of the lifter is connected with the lifting point, and the lifter is fixed on a suspension frame and connected with a controller.

5. The multi-projector automatic lifting platform according to claim 4, wherein the top of the hanger is provided with a contact piece and a positioning piece, the suspension frame is provided with a positioning hole, a top stopper and a buffer piece, wherein the top stopper is connected to the controller, so that when the hanger is lifted to a limit height by the lifter, the positioning piece is inserted into the positioning hole, the contact piece abuts against the buffer piece, and the top of the hanger triggers the top stopper to stop the lifter through the controller.

6. The multi-projector self-elevating platform as claimed in claim 5, wherein the hanger is provided with an inclination sensor near the hanging point, and the inclination sensor is connected to the controller, so that when the hanging point on one side of the hanger is inclined, the inclination sensor is triggered to control the lifter to adjust the elevating height of the hanging point on the side via the controller.

7. The multi-projector automatic lifting platform of claim 5, wherein the bottom of the platform base is provided with a bottom stopper, and the bottom stopper is connected with the controller so as to trigger the bottom stopper to stop the operation of the lifter through the controller when the platform base is lowered to a limit height through the lifter.

8. A multi-projector automatic lifting platform is characterized by comprising: a lifting device, a loading platform, a folding cable manager, wherein the lifting device comprises: a suspension frame, a lifter, a controller; the loading platform comprises: the foldable cable manager comprises a hanger and a platform base, wherein the lower part of the hanger is connected with the platform base, a lifting point extends outwards from the lower part of the top of the hanger, the lifting end of a lifter is connected with the lifting point, the lifter is fixed on a suspension frame and is connected with a controller, the head end and the tail end of the foldable cable manager are respectively connected with the suspension frame and the hanger so as to synchronously drive the foldable cable manager to switch between a stretching/stacking state along with the lifting of the hanger, and a cable inserted into the foldable cable manager by a tube bundle makes a corresponding gesture, wherein the foldable cable manager comprises: the cable tube bundle comprises a plurality of cable tube bundle pieces, wherein the cable tube bundle pieces are respectively connected with each other end to end in a serial manner through connecting shaft arm rotating shafts in an outward reverse inclined manner, two sides of each cable tube bundle piece are folded to form a cable channel, a folding guide piece is further arranged on the outer side wall of the cable channel, and the head of the folding guide piece is inclined to extend out of the cable tube bundle piece.

9. The multi-projector automatic lifting platform according to claim 8, wherein the top of the hanger is provided with a contact piece and a positioning piece, the bottom of the platform base is provided with a bottom stopper, and the suspension frame is provided with a positioning hole, a top stopper and a buffer piece, wherein the top stopper and the bottom stopper are respectively connected with the controller, so that when the hanger is lifted to a limit height by the lifter, the positioning piece is inserted into the positioning hole, the contact piece abuts against the buffer piece, and the top of the hanger triggers the top stopper to stop the operation of the lifter by the controller; when the platform base descends to the limit height through the lifter, the bottom limiter is triggered to stop the lifter through the controller.

10. The multi-projector automatic lifting platform of claim 8, wherein the lifting frame is provided with an inclination sensor near the lifting point, the inclination sensor is connected with the controller, when the lifting point on one side of the lifting frame is inclined, the inclination sensor is triggered to enable the lifter to adjust the lifting height of the lifting point on the side through the controller.

Images