Storage type advertising device

Abstract

The utility model discloses a storage type advertising device which comprises two single screens. A rotating mechanism is arranged on the base in the bottom box, and the lifting mechanism is arranged on the rotating mechanism. A movable connecting structure is arranged between the two single screens, and the connecting structure is used for connecting the two single screens into a whole when the two single screens are overlapped up and down; the lifting mechanism only directly acts on one single screen, and the other single screen needs to receive lifting power of the lifting mechanism through a connecting structure. The rotating mechanism is used for driving the whole lifting mechanism to rotate, so that the two separated single screens are switched between an overlapping position and an opposite position; at the overlapping position, the two single screens are overlapped up and down; and at the opposite positions, the back surfaces of the two single screens are opposite to each other. The two single screens at opposite positions are stored in the bottom box from the opening of the bottom box; the movable box is used for covering the two single screens at the opening in the upper side of the bottom box.

Description

Technical Field

[0001] The utility model relates to an advertising tool, in particular to a retractable advertising device with a detachable and movable display screen. Background Art

[0002] As a mobile advertising platform, compared with a light box advertisement, an advertising vehicle has flexible and diverse advertising methods. According to the content and environmental conditions to be advertised, it can not only carry out mobile advertising placement, but also stay at a fixed point to centrally advertise to specific audiences. Because of these characteristics of the advertising vehicle, the existing advertising vehicle has become an important advertising medium. The structure of the existing advertising vehicle includes a wheeled base, and a vertical display screen is arranged on the base. The display screen is used to play advertising pictures to ensure the advertising effect.

[0003] For small-scale advertising activities, setting a display screen on the advertising vehicle can meet the audience's acceptance of the advertising content. However, for large-scale or relatively complex advertising, the simple display effect of a single large screen cannot be guaranteed. Some changes need to be made in the relative position relationship between the display screen itself or between the display screen and the base to meet the actual advertising needs.

[0004] The Chinese patent document (Publication No.: CN 208706202U) discloses a flip-screen advertising vehicle, which has a base. A fixed screen is arranged on the base. A flip screen is hinged at the upper side edge of the fixed screen. A pushing mechanism is connected to the flip screen. Under the action of the pushing mechanism, the flip screen switches between two positions. One position is that the flip screen is parallel to the fixed screen, and the other position is that the flip screen overlaps the fixed screen in the vertical direction. A plurality of oppositely extending protruding strips are arranged in pairs on the back surfaces of both the fixed screen and the flip screen. The ends of two protruding strips in a pair are movably connected together through a pivot; the pushing mechanism includes driving strips arranged in pairs on the back surfaces of both the fixed screen and the flip screen. The outer ends of two driving strips in a pair are respectively movably connected to the back surfaces of the fixed screen and the flip screen through connecting pieces. The inner ends of the two driving strips are hinged together. The upper end of the cylinder-type lifting mechanism is movably connected to the hinge point of the two driving strips.

[0005] The display screen in this kind of advertising vehicle needs to be split and flipped to reduce its height for convenient parking in a small space after use. However, the corresponding display screen on it won't be too large, otherwise it will affect the working stability of the flipping mechanism. With the improvement of aesthetic requirements and the clear presentation of advertising content, advertising vehicles with small-sized display screens can't meet the current demand for large-sized advertising pictures. In addition, since advertising is carried out outdoors and the outdoor environment is relatively complex, especially in rainy and snowy weather, the external rainwater will erode the electrical components on the display screen. Usually, after the activity is over, the general way is to store it in a warehouse to avoid the erosion of rainwater. In the case of no suitable warehouse, the advertising vehicle is generally left standing outdoors. Under the existing technical conditions, the advertising activity is relatively troublesome and the display screen on the advertising vehicle is easily damaged. Summary of the Invention

[0006] The technical problem to be solved by the present invention: Provide a retractable advertising device, in which the display screen is suitable for retraction and can provide certain protection for the display screen after the advertising activity is over.

[0007] To solve the above technical problem, the technical solution of the present invention: A retractable advertising device, including a display screen with a split structure. The display screen includes two single screens, and there is a joint surface in the horizontal direction between the two single screens. The two single screens overlap or separate up and down from the joint surface. Its characteristics also include:

[0008] A bottom box, the upper side of the bottom box is open. There is a base in the bottom box, and a rotating mechanism is provided on the base. A lifting mechanism is arranged on the rotating mechanism, and the lifting mechanism is used to lift and lower the display screen; An active connection structure is arranged between the two single screens, and the connection structure is used to connect the two single screens into a whole when they overlap up and down; The lifting mechanism directly acts on only one of the single screens, and the other single screen needs to receive the lifting power of the lifting mechanism through the connection structure;

[0009] The rotating mechanism is used to drive the whole lifting mechanism to rotate, so that the two separated single screens can be switched between the overlapping position and the opposite position; At the overlapping position, the two single screens overlap up and down; At the opposite position, the two single screens face each other back to back;

[0010] When in the opposite position, the two single screens are retracted into the bottom box from the opening of the bottom box; An active activity box is used to cover the two single screens at the opening on the upper side of the bottom box.

[0011] In actual application, the display screen mainly presents two states. One is the working state, in which the display screen provides an integrated large-area advertising content display screen, and the two single screens overlap each other up and down; the other is the non-working state, that is, when the use is completed or suspended under bad weather conditions, the two single screens usually need to be separated and placed on the base in the bottom box with their backs facing each other, and the movable box is set at the mouth of the bottom box to cover the display screen.

[0012] Furthermore, a folding screen is movably provided at the end of the single screen in the horizontal direction, and the folding screen corresponds to the height of the corresponding single screen. An opening and closing power mechanism is provided between the folding screen and the corresponding single screen, and the opening and closing power mechanism is used to unfold the folding screen so that the display surfaces of the folding screen and the single screen are on the same plane, or to fold the folding screen to the back side of the single screen. The folding screen and the single screen are movably connected, so that when not in use, the horizontal size of the display screen becomes smaller, so that the display screen is conveniently stored in the bottom box, reducing the volume occupied by the advertising device and facilitating storage.

[0013] Furthermore, the opening and closing power mechanism includes a column fixed on the back frame, a power structure is connected to the column, two hinged push plates are connected to the power structure, and the two push plates are respectively movably connected to the corresponding folding screen and the single screen. This opening and closing power mechanism has a simple structure and is convenient for opening and closing the folding screen.

[0014] Furthermore, the movable box and the bottom box connected together form a rectangular parallelepiped, and the movable box is formed by splicing at least two separate single boxes, and a number of connecting fasteners are provided between the movable box and the bottom box to realize their connection and fixation. This makes it easy to cover the mouth of the bottom box and saves effort in operation.

[0015] Furthermore, the connection structure includes a connection block, which is movably arranged at the joint surface of one single screen, and a plug interface is provided at a corresponding position of the joint surface of the other single screen. The connection block is connected to the power mechanism in a transmission manner, and the power mechanism is used to drive the connection block inserted into the plug interface to translate. The connection structure can also be a latch and lock structure. Now, a structure in which the connection block and the plug interface cooperate is adopted, and the connection block can translate in the plug interface, and the size of the plug interface can be set to be relatively large, thereby facilitating the plug-in cooperation between the plug interface and the connection block, and improving the accuracy and efficiency of the operation.

[0016] Further, the connecting body is offset on the inner end of the connecting block. The connecting body is connected to the power mechanism. The inner side surface of the outer end of the connecting block is an inclined surface. When realizing the connection, the power mechanism generally pushes the connecting block to move towards its outer end direction. With the provided inclined surface, when the connecting block translates, the inclined surface will press against the mouth of the insertion interface, thereby effectively promoting the joint surfaces on the two single screens to fit together, which is beneficial to stably connecting the two single screens into a whole.

[0017] Further, the rotating mechanism includes a turntable rotatably arranged on the base. The lifting mechanism is vertically arranged on the turntable. The turntable is in transmission connection with the driving mechanism. This structure of the rotating mechanism is simple and has good working reliability.

[0018] Further, the driving mechanism includes a driving gear. A toothed ring is coaxially arranged on the turntable. The driving gear meshes with the toothed ring. This well realizes the rotational drive of the turntable and has good working stability.

[0019] Further, a plurality of guide rods are perpendicularly fixed to the base. Guide holes are provided on the single screen. The guide holes are used to be sleeved onto the guide rods to realize that the single screen is vertically and naturally placed on the base. The cooperation of the guide rods and the guide holes can effectively realize that the two single screens are stably placed on the base in a vertical posture, so that when the advertising device moves, the stability of the single screen is good, which is beneficial to providing protection for the single screen.

[0020] Further, telescopic support legs are provided at the corners of the bottom box. The support legs are connected to the base. A support plate is provided at the bottom end of the support legs. The area of the support plate is larger than the lateral area of the support legs. The area of the support plate can be determined according to actual load-bearing requirements. The base is supported by the support legs and the support plate. The material requirement for the bottom box is relatively low. The working stability of the display screen is good, and it can provide protection for the bottom box.

[0021] Therefore, the beneficial effects of the present utility model are as follows: In this advertising device, the display screen is a split structure, including two single screens. When conducting advertising, the two split screens can be connected into a whole, thereby providing a relatively large screen and ensuring the advertising effect. When not in use, the connection structure, lifting mechanism, and rotating mechanism arrange the two single screens side by side, facilitating the storage of the display screen into the bottom box. Through the setting of the movable box, it can provide a covering function for the display screen. Even when parked outdoors, it can effectively prevent rainwater from eroding the display screen, protect the electrical components on the display screen, ensure the service life of the display screen, and have good working stability. Due to the protection of the movable box and the bottom box, there is no need to store it in a warehouse separately, which can effectively simplify the usage steps of this advertising device and reduce operation trouble. Through the cooperation of the lifting mechanism, rotating mechanism, and connection structure, the relative position between the two single screens can be changed to meet the reasonable requirements for the change of the display screen structure state under different states of the advertising device, making it convenient for users to use this advertising device while ensuring the advertising effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. is a structural diagram of this advertising device in the non-use state.

[0023] Figure 2 is Figure 1 a structural diagram of the view after removing the box body.

[0024] Figure 3 is Figure 2 a structural diagram of the view after removing some panels.

[0025] Figure 4 is Figure 3 a structural diagram of the view after removing some structures.

[0026] Figure 5 is Figure 4 a structural diagram of the view after removing some structures.

[0027] In the figure, 1, bottom box; 2, connecting fastener; 3, support plate; 4, single box; 5, support leg; 6, single screen; 7, sunlight board; 8, base; 9, back frame; 10, connecting block; 11, folding screen; 12, exterior cylinder; 13, joint surface; 14, push plate; 15, opening and closing cylinder; 16, column; 17, lifting mechanism; 18, turntable; 19, guide rod. DETAILED DESCRIPTION OF THE INVENTION

[0028] Combined with the accompanying drawings, the advertising device is used to display some advertising content outdoors. When not in use, the display screen can be stored as a whole. The advertising device uses the display screen to display the advertising content in a dynamic picture, and combines some sound, light, and electricity to display the content to be presented in an all-round way. The structure of the display screen includes a back frame 9 located at the back and a panel located at the front. The back plate is generally welded by iron profiles, and the panel is generally an LED screen.

[0029] Figure 1 The structure of the advertising device includes a box body, which is a split structure, including a bottom box 1 located at the bottom side and a movable box located at the upper side. The upper side of the bottom box 1 is open, and the movable box can cover the mouth of the bottom box 1. In order to facilitate taking and placing, the movable box itself is also a split structure. Figure 1 As shown in the figure, the movable box is formed by splicing two single boxes 4. Of course, the movable box can also be formed by splicing more than two single boxes 4. However, when the movable box is connected to the bottom box 1, the overall box body is a rectangular parallelepiped structure. In order to make the box body form a whole, a number of connecting fasteners 2 are arranged between the bottom box 1 and the movable box. The connecting fasteners 2 realize the fixing of the movable box and the bottom box 1 together, and the two single boxes 4 are also fixed together by the connecting fasteners 2. A base 8 is arranged in the bottom box 1, and the display screen is arranged on the base 8 in a vertical state. The base 8 can be the bottom plate of the bottom box 1, or it can be a structure arranged separately in the bottom box 1. The base 8 is generally a platform welded by iron profiles, and the display screen is supported on the base 8.

[0030] In order to facilitate the support of the advertising device, a telescopic support leg 5 is provided at each of the four corners of the bottom box 1. The upper end of the support leg 5 is connected to the base 8, and the lower end of the support leg 5 is connected to a support plate 3, the area of ​​which is larger than the lateral size of the support leg 5. The support leg 5 can be extended and retracted by hand crank or hydraulic transmission. Before the advertising device is used, the support leg 5 needs to be extended downward, and the support plate 3 is used to directly contact the ground, and the support plate 3 provides support for the entire device.

[0031] A sun panel 7 is also horizontally arranged at the top of the display screen. When the display screen is in use, the sun panel 7 can provide a certain degree of protection for the display screen.

[0032] Figure 5 As shown in FIG. 1 , a rotating mechanism is arranged on the base 8, and the rotating mechanism includes a rotatable disk-shaped rotating disk 18, a driving gear is arranged on the outer side of the rotating disk 18, and a gear ring is arranged on the rotating disk 18, and the gear ring is arranged coaxially with the rotating disk 18, and the driving gear meshes with the gear ring from the outer side of the gear ring. The driving gear is generally connected to the motor transmission, and the driving gear drives the rotating disk 18 to rotate through the driving gear ring. The driving gear generally drives the rotating disk 18 to rotate within the range of ±180 degrees.

[0033] The lifting mechanism 17 is vertically arranged on the turntable 18, and the display screen is connected to the lifting mechanism 17. Driven by the lifting mechanism 17, the display screen rises or falls. The lifting mechanism 17 can be a vertical hydraulic cylinder or a lead screw mechanism. An exterior cylinder 12 is also sleeved outside the lifting mechanism 17. Figure 4 It is shown in the figure that there are three exterior cylinders 12, and these three exterior cylinders 12 are movably sleeved together. Among them, the upper end of the innermost small-sized exterior cylinder 12 is connected to the top end of the lifting mechanism 17. When the lifting mechanism 17 works, the inner exterior cylinder 12 will rise and fall together to wrap the lifting mechanism 17 in any state of the display screen.

[0034] The display screen is of a split structure, including two single screens 6. Each single screen 6 has an independent panel and a back frame 9. During operation, the two single screens 6 respectively display a part of the overall picture. There is a joint surface 13 in the horizontal direction between the two single screens 6, and the two single screens 6 overlap and fit or separate from each other at the joint surface 13.

[0035] A movable connection structure is arranged between the two single screens 6. The connection structure is used to realize the connection between the two single screens 6. Only when the two single screens 6 overlap vertically and their joint surfaces 13 are in contact with each other can the connection structure connect the two single screens 6 into a whole. The top end of the lifting mechanism 17 is directly connected to only one of the single screens 6. After the two single screens 6 are connected into a whole through the connection structure, the other single screen 6 can receive the lifting power of the lifting mechanism 17, and the two single screens 6 rise, fall or rotate together under the action of the lifting mechanism 17.

[0036] During the actual working process, the display screen has two working positions, namely the overlapping position and the relative position. The turntable 18 realizes the switching of the display screen between the two working positions through the lifting mechanism 17. The so-called overlapping position means that the two single screens 6 overlap vertically; the so-called relative position means that the backs of the two single screens 6 face each other. The heights of the two single screens 6 can be different. When storing after use, both of the two single screens 6 are simultaneously placed on the base 8. The turntable 18 drives the entire lifting mechanism 17 to rotate, so that the two separated single screens 6 are switched between the overlapping position and the relative position, so as to connect the two single screens 6 together or place the two single screens 6 vertically on the base 8. When the two single screens 6 are vertically placed on the base 8, their back frames 9 face each other.

[0037] In order to expand the lateral size of the display screen, a folding screen 11 is hinged at the end of the single screen 6 in the horizontal direction. As shown in the figure, the folding screen 11 is symmetrically hinged at both ends of the single screen 6. In addition to the lateral size being smaller than that of the single screen 6, the height of the folding screen 11 is equal to or not much different from that of the connected single screen 6. The structure of the folding screen 11 is the same as that of the single screen 6, and also includes a back frame 9 and a panel that are fitted and fixed together. An opening and closing power mechanism is provided between the folding screen 11 and the corresponding single screen 6. In the use state, the display surfaces of the folding screen 11 and the single screen 6 connected thereto are in the same plane; after use, the opening and closing power mechanism can make the folding screen 11 fold and fit toward the back side of the single screen 6.

[0038] The opening and closing power mechanism includes a column 16 fixed on the back frame 9, and a power structure is connected to the column 16. The opening and closing power mechanism shown in the figure is an opening and closing cylinder 15, and two hinged push plates 14 are connected to the extended end of the piston rod of the opening and closing cylinder 15. The two push plates 14 are movably connected to the back frames 9 of the corresponding folding screen 11 and the single screen 6. The push plates 14 are arc-shaped, and the arc-shaped openings on the two push plates 14 are opposite.

[0039] The connection structure includes a connection block 10, which is movably arranged at the joint surface 13 on one of the monomer screens 6, and a plug interface is provided at the corresponding position of the joint surface 13 of the other monomer screen 6. The connection block 10 is connected to the power mechanism in a transmission manner, and the power mechanism is used to drive the connection block 10 inserted into the plug interface to move horizontally. The power mechanism is a power cylinder, which is horizontally arranged on the monomer screen 6, and the power cylinder can make the connection block 10 move horizontally. The connection block 10 is an offset structural member, and a connecting body is integrally formed on the inner end of the connection block 10, and the connecting body is connected to the piston rod of the power cylinder. The inner side surface of the outer end of the connection block 10 is an inclined surface. When the two monomer screens 6 are connected, the power cylinder will drive the connection block 10 to move toward its outer end, so that the inclined surface on the connection block 10 will push the mouth of the plug interface, so that the two monomer screens 6 are tightly attached together at the joint surface 13, and the clamping of the connection block 10 also makes the two monomer screens 6 connected as a whole. The two single screens 6 are provided with several pairs of connection blocks 10 and plug interfaces at their joint surfaces 13, and the corresponding power cylinders are controlled by the same air circuit. When the two single screens 6 are connected and fixed, all the connection blocks 10 act simultaneously under the joint action of their corresponding power cylinders. The connection blocks 10 can also be uniformly actuated by a power cylinder through a transmission mechanism, so as to realize the two single screens 6 being firmly connected together.

[0040] A plurality of guide rods 19 are vertically fixedly connected to the base 8. There are usually four guide rods 19. Each single screen 6 corresponds to two guide rods 19. The upper end of the guide rod 19 is a pointed tip. A guide hole is provided on the single screen 6, and more specifically, a guide hole is provided on the back frame 9 of the single screen 6. The guide rods 19 correspond to the positions of the two single screens 6 when the display screens are in relative positions. The two guide rods 19 are plugged into the corresponding plug-in holes on a single screen 6. Under the support of the guide rods 19, the single screen 6 is placed vertically on the base 8.

[0041] The advertising device works according to the following steps, with the display screen being in the relative position as the working starting point. In fact, before the advertising device works, it is generally necessary to move the advertising device to a place where advertising is required by means of a vehicle.

[0042] When work is required, the support legs 5 are extended downward, and the support plate 3 contacts the ground, so that the advertising device is in a stationary state. The connecting fasteners 2 are operated to move the two single boxes 4 away from the bottom box 1, and the display screens are in relative positions, that is, the two single screens 6 are arranged side by side with intervals, and their backs are facing each other. The lifting mechanism 17 is started to raise a single screen 6 connected to the lifting mechanism 17. After the single screen 6 is disengaged from the guide rod 19, the single screen 6 is continued to be lifted upward into place. In fact, as long as the single screen 6 is higher than the bottom box 1 as a whole, it will be fine. The driving gear works, and the turntable 18 rotates 180 degrees. The lifted single screen 6 is rotated to the upper side of the other single screen 6, and the other single screen 6 is naturally placed on the base 8. The lifting mechanism 17 lowers the lifted single screen 6, so that the joint surfaces 13 of the two single screens 6 are in contact with each other, and the connecting block 10 is plugged into the corresponding plug interface. The power cylinder is activated to drive the connecting block 10 to move horizontally, so that the two single screens 6 are connected into an integral display screen, thereby realizing the screen closure. The entire display screen is lifted upward so that the display screen is higher than the position of the bottom box 1, and then the opening and closing cylinder 15 is started so that all the folding screens 11 are unfolded outward to be flush with the single screen 6. The lifting mechanism 17 is started again, and the lifting mechanism 17 lifts the entire display screen upward. After reaching the target height, the display screen can play the picture. Sometimes, in order to increase the audience of the display screen picture, the drive gear can also be started to make the display screen rotate circumferentially during the process of playing the picture.

[0043] When use is completed, activate the opening and closing cylinder 15 so that the folding screen 11 folds inward and fits against the back frame 9 of the corresponding single screen 6. Activate the lifting mechanism 17, and the lifting mechanism 17 drives the entire display screen to descend. When the other single screen 6 on the lower side is placed upright on the base 8, sensors or travel switches, microswitches can be set at corresponding positions on the base 8 to sense whether the single screen 6 has reached the base 8, or the travel of the lifting mechanism 17 can be used to determine whether the single screen has descended in place. After the single screen 6 has descended in place, the piston on the power cylinder retracts, causing the connecting block 10 to move to the insertion interface position, and the connecting block 10 does not lock the two single screens 6. The lifting mechanism 17 rises again, and all the connecting blocks 10 are disengaged from their corresponding insertion interfaces, and the lifting mechanism 17 drives the single screen 6 on the upper side to rise. This rising distance is generally small, and theoretically, it is only necessary for the insertion interface to be disengaged from the connecting block 10. After the upper single screen 6 is above the bottom box 1, activate the rotating mechanism so that the lifting mechanism 17 drives the single screen 6 to rotate 180 degrees, causing the backs of the two single screens 6 to face each other. The lifting mechanism 17 drives the single screen 6 thereon to descend vertically and rest on the base 8, and the corresponding guide rod 19 is inserted into the corresponding guide hole. Install the two single boxes 4 on the bottom box 1 to cover the display screen and the folding screen 11.

Claims

1. A retractable advertising device, comprising a split-structure display screen, the display screen comprising two single screens, a horizontal joint surface between the two single screens, the two single screens overlapping or separating from each other at the joint surface, characterized in that: Also includes: The bottom box has an opening on the upper side, and a base is arranged inside the bottom box. A rotating mechanism is arranged on the base, and a lifting mechanism is arranged on the rotating mechanism. The lifting mechanism is used to lift the display screen; a movable connecting structure is arranged between the two single screens, and the connecting structure is used to connect the two single screens into a whole when they overlap up and down; the lifting mechanism directly acts on only one of the single screens, and the other single screen needs to receive the lifting power of the lifting mechanism through the connecting structure; The rotating mechanism is used to drive the lifting mechanism to rotate as a whole, so that the two separated single screens are switched between the overlapping position and the relative position; in the overlapping position, the two single screens overlap up and down; in the relative position, the backs of the two single screens are opposite to each other; When the two single screens are in relative positions, they are stored in the bottom box through the opening of the bottom box; the movable box is used to cover the two single screens at the opening on the upper side of the bottom box.

2. The retractable advertising device according to claim 1, characterized in that: A folding screen is movably connected to the end of the single screen in the horizontal direction. The folding screen corresponds to the corresponding single screen in height. An opening and closing power mechanism is arranged between the folding screen and the corresponding single screen. The opening and closing power mechanism is used to unfold the folding screen so that the display surfaces of the folding screen and the single screen are on the same plane, or to fold the folding screen to the back side of the single screen.

3. The retractable advertising device according to claim 2, characterized in that: The opening and closing power mechanism comprises a column fixed on the back frame, the column is connected to a power structure, the power structure is connected to two hinged push plates, and the two push plates are movably connected to the corresponding folding screen and the single screen respectively.

4. The retractable advertising device according to claim 1, characterized in that: The movable box and the bottom box connected together form a rectangular parallelepiped. The movable box is formed by splicing at least two split single boxes. A plurality of connecting fasteners are arranged between the movable box and the bottom box to connect and fix them.

5. The retractable advertising device according to claim 1, characterized in that: The connection structure includes a connection block, which is movably arranged at the joint surface on a single screen, and a plug interface is provided at a corresponding position of the joint surface of the other single screen. The connection block is transmission-connected to a power mechanism, and the power mechanism is used to drive the connection block inserted into the plug interface to translate.

6. The retractable advertising device according to claim 5, characterized in that: The connecting body is offset on the inner end of the connecting block, the connecting body is connected to the power mechanism, and the inner side surface of the outer end of the connecting block is an inclined surface.

7. The retractable advertising device according to claim 1, characterized in that: The rotating mechanism comprises a rotating disk rotatably arranged on a base, the lifting mechanism is vertically arranged on the rotating disk, and the rotating disk is drivingly connected to the driving mechanism.

8. The retractable advertising device according to claim 7, characterized in that: The driving mechanism comprises a driving gear, and a gear ring is coaxially arranged on the rotating disk, and the driving gear is meshed with the gear ring.

9. The retractable advertising device according to claim 1, characterized in that: A plurality of guide rods are vertically fixedly connected to the base, and guide holes are arranged on the single screen. The guide holes are used for sleeve connection to the guide rods so that the single screen can be naturally placed on the base in a vertical manner.

10. The retractable advertising device according to claim 1, characterized in that: A telescopic supporting leg is provided at the corner of the bottom box, the supporting leg is connected to the base, a supporting plate is provided at the bottom end of the supporting leg, and the area of ​​the supporting plate is larger than the lateral area of ​​the supporting leg.

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