A climbing type exhibition banner hanging device

Abstract

A climbing exhibition banner hanging device, the present invention relates to the technical field of display equipment, the bottom of the base is fixed with a universal wheel, the side wall of the shell is longitudinally provided with a slide groove, a screw rod is provided inside the shell at the position of the slide groove, the upper end of the screw rod is screwed on the top wall of the shell by a bearing, the lower end of the screw rod is connected to the output shaft of the driving motor by a coupling, the driving motor is fixed on the partition, and the partition is fixed on the inner wall of the shell; a nut is screwed on the screw rod, a guide block is fixed on one side of the nut, the outer edge of the guide block slides up and down and is stuck in the guide groove, the guide groove is provided on the inner wall of the shell and is arranged opposite to the slide groove; a No. 1 electromagnet is fixed on the side of the nut opposite to the guide block. It can adjust the installation and display height of the exhibition banner at will according to the use requirements, and it is also convenient to install the banner, and the banner can be hung horizontally or vertically to meet the exhibition requirements of various forms.

Description

Technical Field

[0001] The invention relates to the technical field of display equipment, and in particular to a climbing type exhibition banner hanging device. Background Art

[0002] Banners are flags hung on a horizontal bar, between two flagpoles or mounted in a frame, used as an organization emblem, award flag, etc. to welcome the masses to hold banners and slogans. Currently, banners are only supported by two flagpoles, which has poor stability and can only be hung at a height determined by the length of the flagpoles. The height range is relatively limited, resulting in a small scope of application. Summary of the invention

[0003] The purpose of the present invention is to provide a reasonably designed climbing exhibition banner hanging device in view of the defects and shortcomings of the prior art, which can adjust the installation and display height of the exhibition banner at will according to the use requirements, and is also convenient for installing the banner. The banner can be hung horizontally or vertically to meet the needs of various exhibition forms.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: it comprises a shell, a screw rod, a nut, a hanging plate, a base, a universal wheel, a rotating shaft, a damping bearing, a partition, a No. 1 battery, a No. 1 electromagnet, a bearing, a guide block, a driving motor and an electric control panel; the electric control panel is fixed to the bottom outer wall of the shell, the base is fixed to the bottom of the shell, the universal wheel is fixed to the bottom of the base, a slide groove is longitudinally opened on the side wall of the shell, a screw rod is arranged inside the shell at the position of the slide groove, the upper end of the screw rod is screwed to the top wall of the shell by a bearing, and the lower end of the screw rod is connected to the top wall of the shell by a coupling. The output shaft of the driving motor is connected, the driving motor is fixed on the partition, and the partition is fixed on the inner wall of the shell; a nut is screwed on the screw rod, and a guide block is fixed on one side of the nut, and the outer edge of the guide block is slidably mounted in the guide groove, which is arranged on the inner wall of the shell and opposite to the slide groove; a No. 1 electromagnet is fixed on the side of the nut opposite to the guide block, and the No. 1 electromagnet is movably connected to the hanging plate, and the No. 1 electromagnet and the driving motor are both electrically connected to the No. 1 battery, which is fixed on the inner wall of the shell, and the hanging plate is movably arranged in the slide groove, The side wall of the scraper 4 is set in conflict with the side wall of the slide, and a card slot is opened in the side wall of the slide, and a magnet layer is attached to the front and rear side walls of the card slot; the hanging plate is composed of a hanging plate body, a wireless transmission module, a No. 2 battery, a No. 2 electromagnet, a positioning rod and a spring; the side wall of the hanging plate body that is set in conflict with the slide is provided with an embedded groove, and a spring is movably embedded in the embedded groove, one end of the spring is fixed on the inner wall of the embedded groove, and the other end of the spring is fixed to the inner end of the positioning rod, the positioning rod is movably set in the embedded groove, and the outer end of the positioning rod is movably stuck in the card slot and attached to the The magnet layer arranged on the front and rear side walls of the card slot is magnetically adsorbed; a No. 2 electromagnet is embedded in the hanging plate body located between the two opposite embedding grooves, a No. 2 battery and a wireless transmission module are embedded in the hanging plate body located on one side of the No. 2 electromagnet, and a plurality of hanging holes are opened on the hanging plate body on the side opposite to the wireless transmission module; the No. 2 electromagnet and the wireless transmission module are electrically connected to the No. 2 battery, and the No. 2 electromagnet is wirelessly controlled and connected to the electric control panel by the wireless transmission module; the No. 1 electromagnet 14 is wirelessly controlled and connected to the electric control panel by the wireless transmission module.

[0005] Furthermore, the shell at the bottom of the partition is a storage bin, and a bin door is hinged in the opening of the shell outside the storage bin by hinges, and a handle is fixed on the outer wall of the bin door.

[0006] Furthermore, grooves are opened in the surrounding walls of the base, and a rotating shaft is screwed in the groove by a damping bearing. The universal wheel is fixed to the outer wall of the rotating shaft by a connecting rod thereon. The rotating shaft is movably clamped in a through groove opened in the bottom wall of the groove, and a strong magnet is fixed to the inner wall of the through groove, and the rotating shaft and the strong magnet are movably magnetically adsorbed.

[0007] Furthermore, a handle is hingedly connected below the outer wall of the shell.

[0008] The working principle of the present invention is as follows: when it is necessary to display the banner horizontally, two of the hanging devices are taken and placed opposite to each other, then the No. 1 electromagnet is started to make the No. 1 electromagnet magnetic, and then a hanging plate is taken, and its inner edge is passed through the slide slot and adsorbed on the No. 1 electromagnet, and then another hanging plate is taken and movably inserted into the slide slot, and the upper and lower corners of one side of the banner are hooked in the hanging hole by a pull rope or a hook, and then the driving motor is started to work, and the driving motor drives the screw rod to rotate while driving the nut to move upward. When the nut moves upward, it drives one side of the banner to move upward. At this time, the hanging plates connected to the lower corners of the banner rise at the same time under the pulling action of the banner, until the two hanging plates rise to the required exhibition height, and then the driving motor is stopped. At this time, the power supply of the No. 2 electromagnet is turned off, and the No. 2 electromagnet The iron loses magnetism, causing the positioning rod to detach from the second electromagnet, and pops out of the slot under the action of the spring. At this time, the outer end of the positioning rod is inserted into the slot and is fixed by magnetic adsorption with the magnet layer, that is, the upper corner of one side of the banner is positioned, and the hanging plate connected to the lower corner of one side of the banner is hung downward under the action of its gravity, and then the power supply of the second electromagnet in the hanging plate is disconnected. At this time, the hanging plate is positioned in the slide slot by the positioning rod and the slot, so that the height positioning of one side of the banner can be achieved; then, the upper and lower corners of the other side of the banner are respectively hooked on the two hanging plates in the other hanging device, and the same operation is used to raise the other side of the banner to the required height, and finally the two relative hanging devices are moved to make the banner unfold horizontally, and the position positioning is achieved by the wheel lock on the universal wheel;

[0009] When it is necessary to display the banner vertically, take a hanging device of this invention, hook the two corners of the upper edge of the banner on a hanging plate attracted by the No. 1 electromagnet at the same time, and then hook the two corners of the lower edge of the banner on another hanging plate at the same time, and then start the driving motor to drive the hanging plate connected to the No. 1 electromagnet to move up to a suitable height, and then disconnect the power supply of the No. 2 electromagnet in the hanging plate. The hanging plate is positioned in the slide groove with the cooperation of its positioning rod and the card slot, and the hanging plate connected to the lower edge of the banner is suspended in the slide groove under the action of its gravity, so that the banner is unfolded vertically. Finally, disconnect the No. 2 electromagnet in the hanging plate below, and the hanging plate is positioned in the slide groove with the cooperation of its positioning rod and the card slot, so as to realize the vertical display of the banner.

[0010] After adopting the above structure, the beneficial effect of the present invention is: the present invention provides a climbing exhibition banner hanging device, which can adjust the installation and display height of the exhibition banner at will according to the use requirements, and it is also convenient to install the banner. The banner can be hung horizontally or vertically to meet various forms of exhibition needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the present invention.

[0012] Figure 2 yes Figure 1 AA section view.

[0013] Figure 3 yes Figure 1 Top view of the .

[0014] Figure 4 It is a structural schematic diagram of the hanging plate in the present invention.

[0015] Figure 5 It is a structural diagram of embodiment 1.

[0016] Figure 6 It is a structural diagram of the second embodiment.

[0017] Description of reference numerals:

[0018] Shell 1, slide groove 1-1, guide groove 1-2, card slot 1-3, screw rod 2, nut 3, hanging plate 4, hanging plate body 4-1, wireless transmission module 4-2, No. 2 battery 4-3, No. 2 electromagnet 4-4, positioning rod 4-5, spring 4-6, hanging hole 4-7, embedded groove 4-8, hinge 5, handle 6, base 7, groove 7-1, universal wheel 8, strong magnet 9, rotating shaft 10, damping bearing 11, warehouse door 12, partition 13, No. 1 battery 14, No. 1 electromagnet 15, bearing 16, guide block 17, drive motor 18, banner 19, electric control panel 20, handle 21. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figure 1-Figure 4As shown, this specific embodiment adopts the following technical scheme: it includes a shell 1, a screw rod 2, a nut 3, a hanging plate 4 (whose size can be processed into different sizes, which is not limited here), a base 7, a universal wheel 8, a rotating shaft 10, a damping bearing 11, a partition 13, a No. 1 battery 14, a No. 1 electromagnet 15, a bearing 16, a guide block 17, a drive motor 18 and an electric control panel 20; a handle 21 is hingedly connected to the lower part of the outer wall of the shell 1 by a hinge seat, which is convenient for dragging the entire suspension device, and the bottom outer wall of the shell 1 is fixed with an electric control panel 20 by bolt riveting (the electric control panel 20 is provided with a control panel for controlling the No. 1 electromagnet 15 and the No. 2 electromagnet 4-4 and a control switch for the drive motor 18, which is also provided with a wireless module for mutually controlling signal transmission with the wireless transmission module 4-2), a base 7 is welded and fixed to the bottom of the shell 1, a groove 7-1 is provided in the surrounding walls of the base 7, a rotating shaft 10 is screwed in the groove 7-1 by a damping bearing 11, the universal wheel 8 is fixed to the outer wall of the rotating shaft 10 by a connecting rod thereon (the connecting rod and the rotating shaft 10 are welded and fixed), the rotating shaft 10 is movably clamped in a through groove provided in the bottom wall of the groove 7-1, and a strong magnet 9 is fixed on the inner wall of the through groove, the rotating shaft 10 and the strong magnet 9 are movably magnetically adsorbed, and a slide groove 1- 1, a screw rod 2 is provided inside the housing 1 at the position of the slide groove 1-1, the upper end of the screw rod 2 is screwed to the top wall of the housing 1 by means of a bearing 16, the lower end of the screw rod 2 is connected to the output shaft of the driving motor 18 by means of a coupling, the bottom wall of the driving motor 18 is fixed to the partition 13 by means of bolts, and the partition 13 is welded and fixed to the inner wall of the housing 1; a nut 3 is screwed to the screw rod 2, a guide block 17 is welded and fixed to one side of the nut 3, the outer edge of the guide block 17 is slidably clamped in the guide groove 1-2 up and down, the guide groove 1-2 is provided on the inner wall of the housing 1, and is arranged opposite to the slide groove 1-1; a screw is riveted on the side of the nut 3 opposite to the guide block 17 There is a No. 1 electromagnet 15, which is movably connected to the hanging plate 4 by magnetic adsorption. The No. 1 electromagnet 15 and the driving motor 18 are electrically connected to the No. 1 battery 14. The No. 1 battery 14 is fixed on the inner wall of the shell 1. The hanging plate 4 is movably arranged in the slide groove 1-1, and the side wall of the hanging plate 4 is arranged to be in conflict with the side wall of the slide groove 1-1. A card slot 1-3 is provided through the side wall of the slide groove 1-1, and a magnet layer (not shown in the figure) is attached to the front and rear side walls of the card slot 1-3; the hanging plate 4 is composed of a hanging plate body 4-1, a wireless transmission module 4-2, a No. 2 battery 4-3, a No. 2 electromagnet 4-4, a positioning rod 4-5 and a spring 4-6;The side wall of the hanging plate body 4-1 that is in conflict with the slide groove 1-1 is provided with an embedding groove 4-8, and a spring 4-6 is movably embedded in the embedding groove 4-8. One end of the spring 4-6 is welded and fixed to the inner wall of the embedding groove 4-8, and the other end of the spring 4-6 is welded and fixed to the inner end of the positioning rod 4-5. The positioning rod 4-5 is movably arranged in the embedding groove 4-8, and the outer end of the positioning rod 4-5 is movably clamped in the clamping groove 1-3, and is magnetically adsorbed with the magnet layer attached to the front and rear side walls of the clamping groove 1-3; the hanging plate body 4-1 located between the two opposite embedding grooves 4-8 is embedded with a No. 2 electromagnet 4-4, and the hanging plate body 4-1 located on one side of the No. 2 electromagnet 4-4 is embedded with a No. 2 electromagnet Battery 4-3 and wireless transmission module 4-2, a plurality of hanging holes 4-7 are provided on the hanging plate body 4-1 on one side of the wireless transmission module 4-2; the No. 2 electromagnet 4-4 and the wireless transmission module 4-2 are both electrically connected to the No. 2 battery 4-3, the No. 2 electromagnet 4-4 is wirelessly controlled and connected to the electric control panel 20 by the wireless transmission module 4-2; the No. 1 electromagnet 15 is wirelessly controlled and connected to the electric control panel 20 by the wireless transmission module 4-2; the housing 1 at the bottom of the partition 13 is a storage bin, in which multiple hanging plates 4 are stored, a bin door 12 is hingedly connected to the opening of the housing 1 outside the storage bin by a hinge 5, and a handle 6 is bolted and fixed to the outer wall of the bin door 12. ;

[0021] After adopting the above structure, the beneficial effects of this specific implementation are as follows:

[0022] 1. Use the drive motor to drive the screw rod to rotate, thereby driving the adjustment of the upper and lower positions of the hanging plate to meet the needs of exhibition hanging at different heights;

[0023] 2. Use No. 1 electromagnet to quickly fix and detach the hanging plate and the nut;

[0024] 3. Use No. 2 electromagnet to limit and fix the hanging plate at different positions;

[0025] 4. The storage bin is used to place multiple hanging boards, which is convenient for the storage of hanging boards;

[0026] 5. Use one or two of the hanging devices to realize the display of banners in different states, increase its application scope, and produce different exhibition effects;

[0027] 6. Universal wheels can be used for easy movement;

[0028] 7. The universal wheel can be folded and unfolded under the action of the rotating shaft and the strong magnet, making it easy to place and move.

[0029] Embodiment 1:

[0030] See also Figure 5, this embodiment is to display the banner 19 horizontally; take two of the hanging devices and place them opposite to each other, then start the No. 1 electromagnet 15 to make the No. 1 electromagnet 15 magnetic, then take a hanging plate 4, pass its inner edge through the slide slot 1-1, adsorb it on the No. 1 electromagnet 15, then take a hanging plate 4, movably penetrate it in the slide slot 1-1, and hook the upper and lower corners of one side of the banner 19 in the hanging hole 4-7 by using a pull rope or a hook, and then start the driving motor 18 to work, the driving motor 18 drives the screw rod 2 to rotate while driving the nut 3 to move upward, and the nut 3 drives one side of the banner 19 to move upward while moving upward. At this time, the hanging plate 4 connected to the lower corner of the banner 19 rises at the same time under the pulling action of the banner 19, until the two hanging plates 4 rise to the required exhibition height, stop the driving motor 18, at this time, turn off the power supply of the No. 2 electromagnet 4-4, the No. 2 electromagnet 4-4 loses magnetism, causing the positioning rod 4-5 to separate from the No. 2 electromagnet 4-4, and under the action of the spring 4-6 The embedded slot 4-8 pops up downward, at this time, the outer end of the positioning rod 4-5 is stuck in the slot 1-3 and is magnetically fixed with the magnet layer, that is, the upper corner of one side of the banner 19 is positioned, and the hanging plate 4 connected to the lower corner of one side of the banner 19 is suspended downward under the action of its gravity, and then the power supply of the No. 2 electromagnet 4-4 in the hanging plate 4 is disconnected. At this time, the hanging plate 4 is positioned in the slide groove 1-1 by using the positioning rod 4-5 and the slot 1-3 to achieve the height positioning of one side of the banner 19; then, the upper and lower corners of the other side of the banner 19 are respectively hooked on the two hanging plates 4 in the other hanging device, and the same operation is used to raise the other side of the banner 19 to the required height, and finally the two relative hanging devices are moved to make the banner 19 unfold horizontally, and the four universal wheels 8 are pulled upward to make the connecting rods of the universal wheels 8 disengage from the strong magnets 9, and then continue to rotate upward until the universal wheels 8 are folded above the base 7, and finally the shell 1 is placed on the ground using the base 7.

[0031] Embodiment 2:

[0032] See also Figure 6, this embodiment is to display the banner 19 vertically, take a hanging device, hook the two corners of the upper edge of the banner 19 on a hanging plate 4 that is attracted by the first electromagnet 15 at the same time, and then hook the two corners of the lower edge of the banner 19 on another hanging plate 4 at the same time, and then start the driving motor 18 to drive the hanging plate 4 connected to the first electromagnet 15 to move to a suitable height, and then disconnect the power supply of the second electromagnet 4-4 in the hanging plate 4. The hanging plate 4 is positioned in the slide groove 1-1 under the cooperation of its positioning rod 4-5 and the card slot 1-3. The hanging plate 4 connected to the lower edge of the banner 19 is suspended in the slide groove 1-1 under the action of its gravity, so that the banner 19 is longitudinally unfolded. Finally, disconnect the second electromagnet 4-4 in the lower hanging plate 4, and the hanging plate 4 is positioned in the slide groove 1-1 under the cooperation of its positioning rod 4-5 and the card slot 1-3, so as to realize the longitudinal display of the banner 19.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A climbing type exhibition banner hanging device, characterized in that: It comprises a shell (1), a screw rod (2), a nut (3), a hanging plate (4), a base (7), a universal wheel (8), a rotating shaft (10), a damping bearing (11), a partition (13), a No. 1 battery (14), a No. 1 electromagnet (15), a bearing (16), a guide block (17), a driving motor (18) and an electric control panel (20); the electric control panel (20) is fixed to the outer wall of the bottom of the shell (1), the base (7) is fixed to the bottom of the shell (1), the universal wheel (8) is fixed to the bottom of the base (7), a sliding groove (1-1) is longitudinally opened on the side wall of the shell (1), a screw rod (2) is arranged inside the shell (1) at the position of the sliding groove (1-1), and the upper end of the screw rod (2) is screwed to the top wall of the shell (1) by means of a bearing (16). The lower end of the screw rod (2) is connected to the output shaft of the driving motor (18) by means of a coupling, the driving motor (18) is fixed on the partition (13), and the partition (13) is fixed on the inner wall of the housing (1); a nut (3) is screwed onto the screw rod (2), a guide block (17) is fixed on one side of the nut (3), the outer edge of the guide block (17) is slidably clamped in the guide groove (1-2) up and down, the guide groove (1-2) is provided on the inner wall of the housing (1) and is arranged opposite to the slide groove (1-1); a No. 1 electromagnet (15) is fixed on the side of the nut (3) opposite to the guide block (17), the No. 1 electromagnet (15) is movably connected to the hanging plate (4), and the No. 1 electromagnet (15) and the driving motor (18) are both electrically connected to a No. 1 battery (14). A No. 1 battery (14) is fixed on the inner wall of the shell (1); a hanging plate (4) is movably arranged in the slide groove (1-1) up and down, and the side wall of the hanging plate (4) is arranged to abut against the side wall of the slide groove (1-1); a card slot (1-3) is provided in the side wall of the slide groove (1-1); a magnet layer is attached to the front and rear side walls of the card slot (1-3); the hanging plate (4) is composed of a hanging plate body (4-1), a wireless transmission module (4-2), a No. 2 battery (4-3), a No. 2 electromagnet (4-4), a positioning rod (4-5) and a spring (4-6); a side wall of the hanging plate body (4-1) abutting against the slide groove (1-1) is provided with an embedded groove (4-8); a spring (4-6) is movably embedded in the embedded groove (4-8), and one end of the spring (4-6) The spring (4-6) is fixed on the inner wall of the embedded groove (4-8), and the other end of the spring (4-6) is fixed on the inner end of the positioning rod (4-5). The positioning rod (4-5) is movably arranged in the embedded groove (4-8), and the outer end of the positioning rod (4-5) is movably clamped in the clamping groove (1-3), and is magnetically adsorbed with the magnet layer attached to the front and rear side walls of the clamping groove (1-3); a second electromagnet (4-4) is embedded in the hanging plate body (4-1) located between the two opposite embedded grooves (4-8), a second battery (4-3) and a wireless transmission module (4-2) are embedded in the hanging plate body (4-1) located on one side of the second electromagnet (4-4), and a plurality of hanging holes (4-7) are opened on the hanging plate body (4-1) on the side opposite to the wireless transmission module (4-2);The No. 2 electromagnet (4-4) and the wireless transmission module (4-2) are both electrically connected to the No. 2 battery (4-3); the No. 2 electromagnet (4-4) is wirelessly controlled and connected to the electric control panel (20) by using the wireless transmission module (4-2); the No. 1 electromagnet (15) is wirelessly controlled and connected to the electric control panel (20) by using the wireless transmission module (4-2); the shell (1) at the bottom of the partition (13) is a storage bin, and a bin door (12) is hingedly connected to the opening of the shell (1) outside the storage bin by using a hinge (5), and the outer wall of the bin door (12) is A handle (6) is fixed on the base (7); a groove (7-1) is provided in the surrounding walls of the base (7); a rotating shaft (10) is rotatably connected in the groove (7-1) by means of a damping bearing (11); a universal wheel (8) is fixed to the outer wall of the rotating shaft (10) by means of a connecting rod thereon; the rotating shaft (10) is movably clamped in a through groove provided in the bottom wall of the groove (7-1); a strong magnet (9) is fixed on the inner wall of the through groove; the rotating shaft (10) and the strong magnet (9) are movably magnetically adsorbed; a handle (21) is hingedly connected to the lower part of the outer wall of the housing (1). ; 2. A method for using the climbing exhibition banner hanging device according to claim 1, characterized in that: When it is necessary to display the banner (19) horizontally, two of the hanging devices are taken and placed opposite to each other, and then the No. 1 electromagnet (15) is started to make the No. 1 electromagnet (15) magnetic, and then a hanging plate (4) is taken, and its inner edge is passed through the slide groove (1-1) and adsorbed on the No. 1 electromagnet (15), and then another hanging plate (4) is taken and movably inserted into the slide groove (1-1), and the upper and lower corners of one side of the banner (19) are hooked in the hanging hole (4-7) by a pull rope or a hook, and then the driving motor (1) is started. 18) works, the driving motor (18) drives the screw rod (2) to rotate and drives the nut (3) to move upward. While the nut (3) moves upward, it drives one side of the banner (19) to move upward. At this time, the hanging plate (4) connected to the lower corner of the banner (19) rises at the same time under the pulling action of the banner (19), until the two hanging plates (4) rise to the required exhibition height, the driving motor (18) is stopped, and at this time, the power supply of the second electromagnet (4-4) is turned off, and the second electromagnet (4-4) is demagnetized so that The positioning rod (4-5) is separated from the second electromagnet (4-4) and pops out of the slot (4-8) under the action of the spring (4-6). At this time, the outer end of the positioning rod (4-5) is inserted into the slot (1-3) and is magnetically adsorbed and fixed to the magnet layer, so that the upper corner of one side of the banner (19) is positioned. The hanging plate (4) connected to the lower corner of one side of the banner (19) is suspended downward under the action of its gravity, and then the power supply of the second electromagnet (4-4) in the hanging plate (4) is disconnected. At this time, the hanging plate (4) By using the positioning rod (4-5) and the card slot (1-3) to cooperate with each other and position it in the slide slot (1-1), the height positioning of one side of the banner (19) can be achieved; then, the upper and lower corners of the other side of the banner (19) are respectively hooked on two hanging plates (4) in another hanging device, and the same operation is performed to raise the other side of the banner (19) to the required height, and finally the two relative hanging devices are moved to make the banner (19) unfold horizontally, and the position positioning is achieved by using the wheel lock on the universal wheel (8); When it is necessary to display the banner (19) vertically, take a present hanging device, hook the two corners of the upper edge of the banner (19) on a hanging plate (4) adsorbed by the first electromagnet (15) at the same time, and then hook the two corners of the lower edge of the banner (19) on another hanging plate (4) at the same time, then start the driving motor (18), drive the hanging plate (4) connected to the first electromagnet (15) to move to a suitable height, disconnect the power supply of the second electromagnet (4-4) in the hanging plate (4), and the hanging plate (4) is moved upward. ) is positioned in the slide groove (1-1) under the cooperation of its positioning rod (4-5) and the card slot (1-3), and the hanging plate (4) connected to the lower edge of the banner (19) is suspended in the slide groove (1-1) under the action of its gravity, so that the banner (19) is longitudinally unfolded. Finally, the second electromagnet (4-4) in the lower hanging plate (4) is disconnected, and the hanging plate (4) is positioned in the slide groove (1-1) under the cooperation of its positioning rod (4-5) and the card slot (1-3), so that the banner (19) can be longitudinally unfolded.

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