Propaganda device for exhibition

Abstract

The invention discloses a propaganda device for exhibition, and relates to the field of exhibition display, the propaganda device comprises a base, the base is internally provided with a mounting cavity, and the propaganda device further comprises a display belt which is connected end to end to form a closed annular structure; the two first supporting rollers and the two second supporting rollers are arranged on the base, and the first supporting rollers and the second supporting rollers are partially arranged in the display belt and used for supporting the display belt; the first driving mechanism is mounted in the mounting cavity of the base, and the output end of the first driving mechanism is in transmission connection with the two first supporting rollers; according to the propaganda device for exhibition, through the synergistic effect of the first driving mechanism and the second driving mechanism, accurate zooming of the exhibition belt in the transverse direction and the longitudinal direction is achieved. When core content needs to be displayed in a highlighted mode, the display belt can be transversely contracted to focus the visual center, when panoramic information needs to be displayed, the display area can be longitudinally expanded to enhance immersion, a single device can adapt to different content proportions and display scenes through the form variability, and the space utilization rate is remarkably increased.

Description

Technical Field

[0001] The present invention relates to exhibition display technology, in particular to a publicity device for exhibition. Background Art

[0002] In the field of exhibitions and displays, traditional promotional devices generally have functional limitations. For example, in the field of early childhood education, static display boards are often used to display works and other content. Although static display boards are simple in structure, their display area is fixed and cannot be flexibly adjusted according to the proportion of displayed content or the venue space, resulting in low space utilization. Especially when different themes need to be displayed alternately, display boards must be frequently replaced or combined with multiple display boards, which is cumbersome and costly. On the other hand, although electronic display screens can attract audiences through dynamic images, their high power consumption characteristics require dedicated cooling systems when used outdoors or for long periods of time, significantly increasing the complexity and maintenance costs of the equipment, and the display effect is easily affected in strong light environments. Summary of the Invention

[0003] The purpose of the present invention is to provide a promotional device for exhibitions to solve the problems in the prior art of static display boards, such as low space utilization and cumbersome replacement due to fixed display area, and electronic display screens, such as high power consumption, complex maintenance and limited strong light display.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a promotional device for exhibition, comprising a base, an installation cavity being provided inside the base, and further comprising:

[0005] Display belt, connected end to end to form a closed loop structure;

[0006] Two first support rollers and two second support rollers are both arranged on the base, and the first support rollers and the second support rollers are both partially arranged inside the display belt and used to support the display belt;

[0007] The first driving mechanism is installed in the installation cavity of the base, and its output ends are respectively connected to the two first support rollers for driving the two first support rollers to move toward or away from each other along the width direction of the base;

[0008] The second driving mechanism is installed in the installation cavity of the base, and its output ends are respectively connected to the two second support rollers for driving the two second support rollers to move toward or away from each other along the length direction of the base;

[0009] When the first driving mechanism drives the two first supporting rollers to move toward each other and closer to each other along the width direction of the base, the second driving mechanism drives the two second supporting rollers to move away from each other and farther away from each other along the length direction of the base;

[0010] When the first driving mechanism drives the two first supporting rollers to move away from each other in the width direction of the base, the second driving mechanism drives the two second supporting rollers to move closer to each other in the length direction of the base;

[0011] A rotation driving mechanism, whose output end is connected to one of the first supporting rollers or the second supporting roller, is used to drive the first supporting roller or the second supporting roller connected thereto to rotate around its own axis.

[0012] Further, the first driving mechanism includes a first driving component and two first limiting members. The two first limiting members are correspondingly connected to the two first supporting rollers. The first limiting member is used to limit the corresponding first supporting roller to move in the width direction of the base.

[0013] Further, the first limiting member includes a longitudinal sliding groove opened on the base. A first sliding block is slidably connected to the inner wall of the longitudinal sliding groove. A shaft hole for the bottom end rotating shaft of the first supporting roller to pass through is opened on the first sliding block, and the inner wall of the shaft hole on the first sliding block is rotatably connected to the bottom end rotating shaft of the corresponding first supporting roller.

[0014] Further, the first driving component includes a transmission shaft. A first gear is fixedly sleeved on the outside of the transmission shaft. First racks are meshed on both sides of the first gear. The two first racks correspond to the two first sliding blocks one by one. One ends of the two first racks are respectively fixedly connected to the corresponding first sliding blocks. One end of the transmission shaft is connected to a second rotation driving member for driving it to rotate around its own axis. The same support frame is slidably connected to the outside of the two first racks, and one side of the support frame is fixedly connected to the inner wall of the installation cavity.

[0015] Further, the second driving mechanism includes a second driving component and two second limiting members. The two second limiting members are correspondingly connected to the two second supporting rollers. The second limiting member is used to limit the corresponding second supporting roller to move in the length direction of the base.

[0016] Further, the second limiting member includes a transverse sliding groove opened on the base. A second sliding block is slidably connected to the inner wall of the transverse sliding groove. A shaft hole for the bottom end rotating shaft of the second supporting roller to pass through is opened on the second sliding block, and the inner wall of the shaft hole on the second sliding block is rotatably connected to the bottom end rotating shaft of the corresponding second supporting roller.

[0017] Further, the second driving component includes a second gear. The second gear is fixedly sleeved on the outside of the transmission shaft. Second racks are meshed on both sides of the second gear. The two second racks correspond to the two second sliding blocks one by one. One ends of the two second racks are respectively fixedly connected to the corresponding second sliding blocks. The outside of the two second racks is respectively slidably connected to the support frame.

[0018] Further, an audio player is also provided. The audio player is fixedly installed on the upper surface of the base and is located inside the display belt.

[0019] Furthermore, a plurality of limiting strips are fixedly installed on the inner side wall of the display belt, and grooves matching the limiting strips are formed on both the first support roller and the second support roller.

[0020] Compared with the prior art, a publicity device for exhibitions provided by the present invention realizes precise scaling of the display belt in the horizontal and vertical directions through the synergistic effect of the first driving mechanism and the second driving mechanism. When it is necessary to prominently display the core content, the display belt can be horizontally contracted to focus on the visual center. When panoramic information needs to be presented, the display area can be vertically expanded to enhance the immersion. This morphological variability enables a single device to adapt to different content ratios and display scenarios, significantly improving the space utilization rate.

[0021] Through the meshing design of the limiting strips on the inner side of the display belt and the grooves of the support rollers, the slipping phenomenon of the display belt during the transmission process is effectively avoided, ensuring the stable operation of the display belt. The direct connection method between the rotary driving mechanism and the support roller reduces the energy loss in the transmission link, improves the power transmission efficiency, and simultaneously reduces the risk of mechanical failures.

[0022] Both the first driving mechanism and the second driving mechanism are driven by the same transmission shaft, and precise linkage of the horizontal and vertical movements is achieved through the gear-rack mechanism. When the horizontal support rollers move towards each other, the vertical support rollers automatically expand in the opposite direction, and vice versa, ensuring that the display belt always remains taut. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0024] Figure 1 External three-dimensional structure schematic diagram provided by an embodiment of the present invention;

[0025] Figure 2 Front view cross-sectional structure schematic diagram provided by an embodiment of the present invention;

[0026] Figure 3 Side view cross-sectional structure schematic diagram provided by an embodiment of the present invention;

[0027] Figure 4 Bottom view cross-sectional structure schematic diagram provided by an embodiment of the present invention;

[0028] Figure 5 Magnified schematic diagram of part A provided by an embodiment of the present invention Figure 3 in;

[0029] Figure 6A schematic diagram of a partial three-dimensional structure provided by an embodiment of the present invention;

[0030] Figure 7 A schematic diagram of the support structure provided by an embodiment of the present invention;

[0031] Figure 8 A schematic diagram of the dynamic changes of the display belt provided by an embodiment of the present invention.

[0032] Description of reference numerals:

[0033] 100, base; 200, display belt; 310, first support roller; 320, second support roller; 400, first driving mechanism; 410, longitudinal slide; 420, first slider; 430, transmission shaft; 440, first gear; 450, first rack; 460, second rotating driving member; 470, support frame; 500, second driving mechanism; 510, transverse slide; 520, second slider; 530, second gear; 540, second rack; 600, rotating driving mechanism; 700, audio player; 800, limit bar. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0035] See also Figures 1 to 8 A promotional device for exhibition includes a base 100, wherein the base 100 has a mounting cavity, and further includes:

[0036] The display belt 200 is connected end to end to form a closed loop structure;

[0037] Two first support rollers 310 and two second support rollers 320 are both provided on the base 100 , and the first support rollers 310 and the second support rollers 320 are both partially provided inside the display belt 200 and used to support the display belt 200 ;

[0038] The first driving mechanism 400 is installed in the installation cavity of the base 100, and its output end is respectively connected to the two first support rollers 310 for driving the two first support rollers 310 to move toward or away from each other along the width direction of the base 100;

[0039] The second driving mechanism 500 is installed in the installation cavity of the base 100, and its output end is respectively connected to the two second support rollers 320 for driving the two second support rollers 320 to move toward or away from each other along the length direction of the base 100;

[0040] When the first driving mechanism 400 drives the two first supporting rollers 310 to move towards each other in the width direction of the base 100 and approach each other, the second driving mechanism 500 drives the two second supporting rollers 320 to move away from each other in the length direction of the base 100;

[0041] When the first driving mechanism 400 drives the two first supporting rollers 310 to move away from each other in the width direction of the base 100 and move apart, the second driving mechanism 500 drives the two second supporting rollers 320 to move towards each other in the length direction of the base 100 and approach each other;

[0042] A rotation driving mechanism 600, whose output end is connected to one of the first supporting rollers 310 or the second supporting rollers 320, is used to drive the connected first supporting roller 310 or the second supporting roller 320 to rotate around its own axis.

[0043] The current publicity devices widely used in the exhibition industry mainly include static display boards and electronic display screens. Among them, the static display boards have fixed and non-adjustable sizes, cannot adapt to different content ratios, have low space utilization, the electronic display screens have high power consumption, and an additional heat dissipation system is required outdoors, resulting in high costs;

[0044] Therefore, in this application, the display belt 200 is wrapped around the outside of the two first supporting rollers 310 and the two second supporting rollers 320 to form a closed loop, and publicity and display can be carried out on the surface of the display belt 200. In order to improve the display effect and the attraction effect, the first driving mechanism 400 drives the two first supporting rollers 310 to move synchronously towards each other or away from each other in the longitudinal sliding grooves 410, and the second driving mechanism 500 drives the two second supporting rollers 320 to move synchronously towards each other or away from each other in the transverse sliding grooves 510 to adjust different forms of the display belt 200. And when the first supporting rollers 310 move towards each other (transversely contract), the second supporting rollers 320 automatically move away from each other (longitudinally expand), and vice versa, realizing the dynamic rectangular scaling of the area of the display belt 200, which can be adjusted in cooperation with the content displayed on the outer surface (display surface) of the display belt 200, breaking through the limitation of the fixed size of the traditional display board.

[0045] In an embodiment of the present invention, the first driving mechanism 400 includes a first driving component and two first limiting members. The two first limiting members are correspondingly connected to the two first supporting rollers 310, and the first limiting members are used to limit the corresponding first supporting rollers 310 to move in the width direction of the base 100;

[0046] The first limiting member includes a longitudinal sliding groove 410 opened on the base 100. A first sliding block 420 is slidably connected to the inner wall of the longitudinal sliding groove 410. A shaft hole for the bottom end rotating shaft of the first supporting roller 310 to pass through is opened on the first sliding block 420, and the inner wall of the shaft hole on the first sliding block 420 is rotatably connected to the bottom end rotating shaft of the corresponding first supporting roller 310;

[0047] The first driving assembly includes a transmission shaft 430. The top end of the transmission shaft 430 is rotatably connected to the inner wall of the installation cavity of the base 100. A first gear 440 is fixedly sleeved on the outside of the transmission shaft 430. First racks 450 are meshed on both sides of the first gear 440. The two first racks 450 correspond to the two first sliders 420 one by one. One ends of the two first racks 450 are respectively fixedly connected to their corresponding first sliders 420. The same support frame 470 is slidably connected to the outside of the two first racks 450. One side of the support frame 470 is fixedly connected to the inner wall of the installation cavity. One end of the transmission shaft 430 is connected with a second rotary driving member 460 for driving it to rotate around its own axis. The second rotary driving member 460 adopts a motor or a rotary cylinder. Transmission wheels are fixedly sleeved on the output shaft end of the second rotary driving member 460 and the outside of the transmission shaft 430. The same transmission belt is sleeved on the outside of the two transmission wheels. The second rotary driving member 460 drives the transmission shaft 430 to rotate through belt transmission;

[0048] Specifically, the first driving mechanism 400 drives the transmission shaft 430 to rotate through the second rotary driving member 460, driving the first gear 440 fixed on the transmission shaft 430 to rotate synchronously; The first gear 440 is meshed with the first racks 450 on both sides, converting the rotary motion into a linear motion, so that the two first racks 450 move synchronously in opposite directions; The linear motion of the first rack 450 pushes the first slider 420 fixedly connected thereto to slide along the longitudinal chute 410 of the base 100, thereby driving the two first support rollers 310 to move precisely towards or away from each other along the width direction of the base 100; During this process, the longitudinal chute 410 limits the slider to only translate along the width direction, and the shaft hole of the first slider 420 is rotatably connected to the rotating shaft of the first support roller 310, ensuring that the first support roller 310 can still rotate freely when moving, realizing the decoupling of the degrees of freedom of motion.

[0049] In an embodiment of the present invention, the second driving mechanism 500 includes a second driving assembly and two second limiting members. The two second limiting members are correspondingly connected to the two second support rollers 320. The second limiting member is used to limit the movement of the second support roller 320 corresponding thereto along the length direction of the base 100;

[0050] The second limiting member includes a transverse chute 510 opened on the base 100. A second slider 520 is slidably connected to the inner wall of the transverse chute 510. A shaft hole for the bottom rotating shaft of the second support roller 320 to pass through is opened on the second slider 520, and the inner wall of the shaft hole on the second slider 520 is rotatably connected to the bottom rotating shaft of the second support roller 320 corresponding thereto;

[0051] The second driving component includes a second gear 530 which is fixedly sleeved outside the transmission shaft 430. Second racks 540 are meshed with both sides of the second gear 530. The two second racks 540 correspond to the two second sliders 520 one by one. One ends of the two second racks 540 are respectively fixedly connected to their corresponding second sliders 520. The outer sides of the two second racks 540 are respectively slidably connected to the support frame 470;

[0052] Specifically, the second driving mechanism 500 drives the second gear 530 fixed on the transmission shaft 430 to rotate through the transmission shaft 430. The second gear 530 is meshed with the second racks 540 on both sides, converting the rotational motion into a linear motion, so that the two second racks 540 move synchronously in opposite directions; the linear motion of the second rack 540 pushes the second slider 520 fixedly connected thereto to slide along the transverse chute 510 of the base 100, thereby driving the two second support rollers 320 to move precisely towards or away from each other along the length direction of the base 100; during this process, the transverse chute 510 restricts the slider to only translate along the length direction, and the shaft hole of the second slider 520 is rotatably connected to the rotating shaft of the second support roller 320, ensuring that the second support roller 320 can still rotate freely during translation, realizing the decoupling of the longitudinal displacement and the self-rotation motion.

[0053] In an embodiment of the present invention, a mobile power source is provided on the base 100 for supplying power to electrical equipment. The mobile power source can adopt a detachable lithium battery pack.

[0054] In an embodiment of the present invention, an audio player 700 is further provided. The audio player 700 is fixedly installed on the upper surface of the base 100 and is located inside the display belt 200;

[0055] Specifically, the power supply end of the audio player 700 is connected to the mobile power source provided on the base 100. The audio player 700 can adopt a fixed speaker. The audio player 700 can play corresponding audio according to the content displayed on the display belt 200 to improve the display effect.

[0056] In an embodiment of the present invention, a plurality of limiting strips 800 are fixedly installed on the inner side wall of the display belt 200. Grooves matching the limiting strips 800 are provided on both the first support roller 310 and the second support roller 320;

[0057] Specifically, the movement of the display belt 200 is restricted by the engagement of the side wall of the groove with the limiting strip 800 to avoid the occurrence of the situation where the display belt 200 slips.

[0058] In an embodiment of the present invention, the rotary drive mechanism 600 is a motor or a rotary cylinder. The output shaft end of the rotary drive mechanism 600 is fixedly connected to the bottom rotating shaft of one of the first support rollers 310, and the rotary drive mechanism 600 is fixedly installed on the first slider 420 at the bottom of the first support roller 310;

[0059] Specifically, one of the first support rollers 310 is driven to rotate by the rotary drive mechanism 600. When the first support roller 310 rotates, the display belt 200 is driven to move by friction.

[0060] In an embodiment of the present invention, the rotary drive mechanism 600 is a motor or a rotary cylinder. The output shaft end of the rotary drive mechanism 600 is fixedly connected to the bottom rotating shaft of one of the second support rollers 320, and the rotary drive mechanism 600 is fixedly installed on the second slider 520 at the bottom of the second support roller 320;

[0061] Specifically, one of the second support rollers 320 is driven to rotate by the rotary drive mechanism 600. When the second support roller 320 rotates, the display belt 200 is driven to move by friction.

[0062] In an embodiment of the present invention, the material of the display belt 200 is selected as a polyester fiber base fabric, and the pattern to be displayed is directly printed on the surface of the display belt 200 by using UV spraying technology;

[0063] In an embodiment of the present invention, a display poster is pasted on the surface of the display belt 200.

[0064] In an embodiment of the present invention, the connection between the first support roller 310 and the first slider 420 / the second support roller 320 and the second slider 520 is detachable, so as to facilitate the disassembly of the first support roller 310 / the second support roller 320, and thus facilitate the replacement of the display belt 200.

[0065] In an embodiment of the present invention, heat dissipation grilles (not shown in the figure) are provided on the side wall of the base 100.

[0066] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A promotional device for exhibitions, comprising a base (100), wherein an installation cavity is arranged inside the base (100), and it is characterized in that, Also includes: A display belt (200) is connected end to end to form a closed loop structure; Two first support rollers (310) and two second support rollers (320) are both arranged on the base (100), and the first support rollers (310) and the second support rollers (320) are both partially arranged inside the display belt (200) and used to support the display belt (200); A first driving mechanism (400) is installed in the installation cavity of the base (100), and its output end is respectively connected to the two first support rollers (310) for driving the two first support rollers (310) to move toward or away from each other along the width direction of the base (100); The second driving mechanism (500) is installed in the installation cavity of the base (100), and its output end is respectively connected to the two second support rollers (320) for driving the two second support rollers (320) to move toward or away from each other along the length direction of the base (100); When the first driving mechanism (400) drives the two first supporting rollers (310) to move toward each other and toward each other along the width direction of the base (100), the second driving mechanism (500) drives the two second supporting rollers (320) to move away from each other and toward each other along the length direction of the base (100); When the first driving mechanism (400) drives the two first supporting rollers (310) to move away from each other along the width direction of the base (100), the second driving mechanism (500) drives the two second supporting rollers (320) to move toward each other along the length direction of the base (100); The rotary drive mechanism (600) has an output end connected to one of the first support rollers (310) or the second support rollers (320) and is used to drive the first support roller (310) or the second support roller (320) connected thereto to rotate around its own axis.

2. The promotional device for exhibition according to claim 1, wherein, The first driving mechanism (400) comprises a first driving assembly and two first limiting members, wherein the two first limiting members are correspondingly connected to the two first supporting rollers (310), and the first limiting members are used to limit the movement of the corresponding first supporting rollers (310) along the width direction of the base (100).

3. The promotional device for exhibitions according to claim 2, wherein The first limiting member includes a longitudinal slide groove (410) provided on the base (100), a first slider (420) being slidably connected to the inner wall of the longitudinal slide groove (410), an axial hole for the bottom end rotation shaft of the first support roller (310) to pass through being provided on the first slider (420), and the inner wall of the axial hole on the first slider (420) is rotatably connected to the bottom end rotation shaft of the corresponding first support roller (310).

4. A promotional device for exhibitions according to claim 1, characterized in that, The first driving assembly includes a transmission shaft (430). An external fixed sleeve of the transmission shaft (430) is provided with a first gear (440). Both sides of the first gear (440) are engaged with first racks (450). The two first racks (450) correspond to the two first sliders (420) one by one. One ends of the two first racks (450) are respectively fixedly connected to their corresponding first sliders (420). One end of the transmission shaft (430) is connected with a second rotary driving member (460) for driving it to rotate around its own axis. The outer sides of the two first racks (450) are slidably connected to the same support frame (470), and one side of the support frame (470) is fixedly connected to the inner wall of the installation cavity.

5. An exhibition promotion device according to claim 4, characterized in that, The second driving mechanism (500) includes a second driving assembly and two second limiting members. The two second limiting members are correspondingly connected to the two second supporting rollers (320). The second limiting members are used to limit the movement of the corresponding second supporting rollers (320) along the length direction of the base (100).

6. The promotional device for exhibitions according to claim 5, characterized in that, The second limiting member includes a transverse chute (510) formed in the base (100). A second slider (520) is slidably connected to the inner wall of the transverse chute (510). A shaft hole for the bottom shaft of the second supporting roller (320) to pass through is formed in the second slider (520), and the inner wall of the shaft hole in the second slider (520) is rotatably connected to the bottom shaft of the corresponding second supporting roller (320).

7. An exhibition promotion device according to claim 6, characterized in that, The second driving assembly includes a second gear (530). The second gear (530) is fixedly sleeved outside the transmission shaft (430). Both sides of the second gear (530) are engaged with second racks (540). The two second racks (540) correspond to the two second sliders (520) one by one. One ends of the two second racks (540) are respectively fixedly connected to their corresponding second sliders (520). The outer sides of the two second racks (540) are respectively slidably connected to the support frame (470).

8. An exhibition promotion device according to claim 1, characterized in that, An audio player (700) is further provided. The audio player (700) is fixedly installed on the upper surface of the base (100) and is located inside the display belt (200).

9. The promotional device for exhibition according to claim 1, characterized in that, A plurality of limiting strips (800) are fixedly installed on the inner side wall of the display belt (200). Grooves matching the limiting strips (800) are formed on both the first supporting roller (310) and the second supporting roller (320).

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