A scroll light box capable of avoiding canvas wear and lag

Abstract

The utility model relates to rolling light box technical field, specifically disclose a kind of rolling light box of avoiding canvas abrasion jam, it is square base, the support base upper end is fixed with positioning frame, and positioning frame both sides are rotatably connected with closure cover, the support base, positioning frame and closure cover jointly constitute rolling light box casing.This avoid the rolling light box of canvas abrasion jam, in this rolling light box, by setting limit ball bearing for canvas side wall surface is positioned, there is the strip-shaped silica gel strip embedded with ball in the opening of limit ball bearing symmetrically, when canvas passes through limit ball bearing opening and rolls, ball is contacted with canvas and rolls, reduce friction, to effectively reduce the abrasion of canvas in the rolling process, and, limit ball bearing is slidably connected with the strip-shaped sleeve rod of positioning side plate, to flexibly adjust position, provide accurate guidance and limiting effect for canvas of different sizes.

Description

Technical Field

[0001] This utility model relates to the field of scrolling light box technology, specifically a scrolling light box that avoids canvas wear and jamming. Background Technology

[0002] Scrolling light boxes are widely used in the advertising field due to their ability to dynamically display multiple advertising images. They can often be seen in densely populated places such as shopping malls, streets, and stations. The basic structure of scrolling light boxes on the market is that there are upper and lower rollers driven by motors inside the box. The advertising canvas is rolled on these two rollers, and the canvas is displayed by the synchronous operation of the rollers.

[0003] However, traditional scrolling light boxes have a large number of advertising canvases. During operation, the diameter of the canvas wound on the upper and lower rollers will be different, causing the image to shift. In addition, when the canvas is scrolling, the sides are prone to friction with other parts inside the light box. Over time, the canvas is easily worn out, which seriously affects the advertising display effect, shortens the life of the canvas, and increases the cost of replacing the canvas. Summary of the Invention

[0004] The purpose of this invention is to provide a scrolling lightbox that avoids canvas wear and jamming, in order to solve the problems mentioned in the background art, where the diameter of the canvas wound on the upper and lower rollers differs during operation due to the large size of the advertising canvas, causing the image to shift. Furthermore, the canvas is prone to friction with other internal components of the lightbox during scrolling, resulting in easy wear and shortening the canvas's lifespan.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a scrolling lightbox that avoids canvas wear and jamming, including a support base, which is a square base, a positioning frame fixed at the upper end of the support base, and a closing cover rotatably connected to both sides of the positioning frame, the support base, the positioning frame and the closing cover together constitute the scrolling lightbox shell;

[0006] The closed cover has a display glass embedded inside, and the inner wall of the positioning frame has two positioning side plates. The two positioning side plates are installed on the inner wall of the positioning frame by bolts. There are four baffles at the upper and lower ends of the positioning side plates respectively.

[0007] The positioning side plate is fitted with a light frame, and LED light strips are evenly fixed on both sides of the light frame. There is a limiting ball frame on each side of the positioning side plate. The limiting ball frame is composed of a Y-shaped frame body, and the canvas passes through the opening of the limiting ball frame. Two auxiliary rollers are provided at the bottom of the positioning side plate, and the surfaces of the two ends of the auxiliary rollers are provided with sliding grooves. Limiting slides are slidably connected in the sliding grooves of the auxiliary rollers, and springs are installed between the limiting slides and the auxiliary rollers.

[0008] By adopting the above technical solution, the balls of the limiting ball holder reduce friction with the canvas, and the auxiliary roller and limiting slide limit the canvas, reducing wear and jamming.

[0009] Preferably, the display glass abuts against two shielding plates on the same side, and the four shielding plates are arranged in two groups of two, with two groups located on both sides of the positioning side plate.

[0010] By adopting the above technical solution, the display glass and the shielding plate abut against each other. The shielding plate further prevents debris from entering the lightbox and contacting the canvas, thus protecting the canvas and also protecting the display glass to a certain extent.

[0011] Preferably, the positioning side plate has a trapezoidal protrusion structure on its surface, and a strip-shaped sleeve is embedded on each side of the trapezoidal protrusion of the positioning side plate.

[0012] Using the above technical solution, the trapezoidal protrusions and strip-shaped sleeve structure of the positioning side plate provide a base for the installation and sliding of the limiting ball frame, making it easy to adjust the position of the limiting ball frame to adapt to different canvas states.

[0013] Preferably, the strip-shaped sleeve of the positioning side plate is slidably connected to one end of the limiting ball frame, and there is a limiting frame above the limiting ball frame and an auxiliary roller below the limiting ball frame.

[0014] Using the above technical solution, the limiting ball frame and the strip sleeve are slidably connected. Together with the limiting frame and the auxiliary roller, the canvas can be better limited and guided, ensuring stable scrolling of the canvas and avoiding jamming.

[0015] Preferably, the limiting ball holder has symmetrically arranged strip-shaped silicone strips inside the opening, and the limiting ball holder has balls embedded at equal intervals inside the strip-shaped silicone strips.

[0016] By adopting the above technical solution, the strip silicone strip and balls in the limiting ball holder transform sliding friction into rolling friction, significantly reducing the friction force when the canvas rolls and reducing wear.

[0017] Preferably, there are four limiting frames, with two limiting frames on the surface of the positioning side plate, and a motor is installed in the limiting frames on the same side. The end face of the limiting frame abuts against the end face of the canvas roller.

[0018] Using the above technical solution, the motor inside the limiting frame provides power to the canvas roller, and the limiting frame and the canvas roller abut against each other to ensure stable power transmission, so that the canvas rolls smoothly.

[0019] Preferably, the canvas roller is slidably connected to positioning frames on both sides, and the positioning frames are inserted into limiting frames.

[0020] Using the above technical solution, the positioning frame is inserted into the limiting frame to support and position the canvas roller, ensuring its stable rotation and further guaranteeing the stable operation of the canvas to avoid jamming.

[0021] Compared with the prior art, the beneficial effects of this utility model are: the scrolling lightbox that avoids canvas wear and jamming.

[0022] 1. Inside this scrolling lightbox, a limiting ball bearing frame is used to limit the side wall of the canvas. Symmetrically arranged strips of silicone rubber embedded with balls are placed within the opening of the limiting ball bearing frame. When the canvas rolls through the opening of the limiting ball bearing frame, the balls contact and roll with the canvas, transforming traditional sliding friction into rolling friction, reducing friction and effectively reducing wear on the canvas during the rolling process. Furthermore, the limiting ball bearing frame is slidably connected to the strip-shaped sleeve of the positioning side plate, allowing for flexible adjustment within a certain range during actual use, providing accurate guidance and limiting for canvases of different sizes. In addition, the limiting slide plate abuts against the canvas and can slide flexibly within the groove of the auxiliary roller, both limiting the canvas and allowing for fine-tuning according to the actual position and condition of the canvas, avoiding damage caused by hard friction with the canvas and further extending the canvas's lifespan.

[0023] 2. The positioning side panel inside this scrolling lightbox, together with the upper and lower end shielding panels, abuts against the display glass, forming an effective protective barrier. The shielding panels effectively block external dust, debris, etc., preventing them from entering the lightbox and contacting the canvas, thus avoiding scratches to the canvas caused by foreign objects. The positioning side panel is bolted to the inner wall of the positioning frame, and the detachable connection method facilitates the maintenance and replacement of the internal components of the lightbox. Furthermore, it is connected to the positioning side panel by a light fixture, providing uniform and sufficient lighting for the canvas, so that the content on the canvas can be clearly displayed on the outside of the display glass, improving the display effect of the canvas.

[0024] 3. The motor installed in the limit frame provides stable power to the canvas roller, enabling the canvas to roll smoothly. The cooperation between the positioning frame, the limit frame, and the canvas roller ensures the stable rotation of the canvas roller and avoids canvas jamming or uneven operation caused by unstable power transmission. The sliding connection between the positioning frame and the canvas roller facilitates quick changes of canvas content. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the overall internal three-dimensional structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the overall internal side section of the present invention.

[0028] Figure 4 This is a three-dimensional structural diagram of the installation of the positioning side plate and the shielding plate of this utility model;

[0029] Figure 5 This is a schematic diagram of the installation position of the lighting frame and auxiliary roller of this utility model;

[0030] Figure 6 This is a three-dimensional structural diagram of the installation of the canvas roller and positioning frame of this utility model.

[0031] In the diagram: 1. Support base; 2. Positioning frame; 3. Closing cover; 4. Display glass; 5. Positioning side plate; 6. Cover plate; 7. Limiting ball bearing frame; 8. Lighting frame; 9. Limiting frame; 10. Canvas roller; 11. Positioning frame; 12. Auxiliary roller; 13. Limiting slide. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figures 1-6 This utility model provides a technical solution: a scrolling lightbox that avoids canvas wear and jamming, including a support base 1, a positioning frame 2, a closing cover 3, a display glass 4, a positioning side plate 5, a shielding plate 6, a limiting ball frame 7, a light frame 8, a limiting frame 9, a canvas roller 10, a positioning frame 11, an auxiliary roller 12, and a limiting slide 13.

[0034] Among them, the support base 1 is a square base, the upper end of the support base 1 is fixed with a positioning frame 2, and the two sides of the positioning frame 2 are rotatably connected with a closing cover 3. The support base 1, the positioning frame 2 and the closing cover 3 together constitute the scrolling light box shell.

[0035] The closed cover 3 has a display glass 4 embedded inside, and the inner wall of the positioning frame 2 has two positioning side plates 5. The two positioning side plates 5 are installed on the inner wall of the positioning frame 2 by bolts. There are four shielding plates 6 at the upper and lower ends of the positioning side plates 5 respectively. The display glass 4 abuts against the two shielding plates 6 on the same side. The four shielding plates 6 are arranged in pairs, with two sets on both sides of the positioning side plates 5. The surface of the positioning side plates 5 has a trapezoidal protrusion structure, and a strip-shaped sleeve rod is embedded on each side of the trapezoidal protrusion of the positioning side plates 5. A light frame 8 is snapped into the positioning side plates 5, and LED light strips are evenly fixed on both sides of the light frame 8. There is a limiting ball frame 7 on each side of the positioning side plates 5.

[0036] Referring to the attached diagrams in the instruction manual Figures 1-6 As shown, the support base 1 is fixed to the display area of ​​the scrolling lightbox. The support base 1, as the overall base, provides a solid foundation for the entire lightbox and bears the entire weight of the lightbox. The positioning frame 2 is firmly fixed to the upper end of the support base 1 by bolts and other means, ensuring the stability of the overall structure of the lightbox. The closing covers 3 on both sides of the positioning frame 2 can be flipped up and rotated flexibly, which is convenient for staff to maintain the interior of the lightbox and replace the canvas. A sealing ring is installed at the connection between the positioning frame 2 and the closing cover 3 to keep the internal chamber closed. The display glass 4 embedded inside the closing cover 3 is clean and transparent to display the content of the canvas. When in use, a filter and heat dissipation holes are added to the positioning frame 2 according to the heat dissipation needs to facilitate the heat dissipation of the internal motor.

[0037] The baffles 6 on both sides of the positioning side plate 5 abut against the display glass 4, thereby blocking external debris and preventing it from entering the light box and contacting the canvas. At the same time, it can also protect the display glass 4 and the internal canvas structure. The light frame 8 connected in the positioning side plate 5 provides lighting for the canvas display, making it easy to clearly display the canvas content in different environments. The positioning side plate 5 is installed on the inner wall of the positioning frame 2 by bolts. The detachable connection method makes it easy to maintain and replace the internal components of the light box.

[0038] The strip-shaped sleeve of the positioning side plate 5 is slidably connected to one end of the limiting ball frame 7. A limiting frame 9 is located above the limiting ball frame 7, and an auxiliary roller 12 is located below the limiting ball frame 7. There are four limiting frames 9, with every two limiting frames 9 positioned on the surface of the positioning side plate 5. A motor is installed within each limiting frame 9 on the same side. The end face of the limiting frame 9 abuts against the end face of the canvas roller 10. Positioning frames 11 are slidably connected to both sides of the canvas roller 10, and the positioning frames 11 are inserted into the limiting frames 9. The ball bearing holder 7 is composed of a Y-shaped frame, and the canvas passes through the opening of the ball bearing holder 7. The opening of the ball bearing holder 7 is symmetrically arranged with strip-shaped silicone strips, and balls are equidistantly embedded in the strip-shaped silicone strips of the ball bearing holder 7. The bottom end of the positioning side plate 5 is provided with two auxiliary rollers 12, and the surfaces of both ends of the auxiliary rollers 12 are provided with sliding grooves. The sliding grooves of the auxiliary rollers 12 are slidably connected to the limiting slide pieces 13, and springs are installed between the limiting slide pieces 13 and the auxiliary rollers 12.

[0039] Referring to the attached diagrams in the instruction manual Figures 1-6 As shown, during installation and use, the canvas rollers 10 at both ends of the canvas are brought close to the two limiting frames 9 on the same side. The positioning frame 11 is then engaged with the limiting frame 9, aligning the limiting frame 9 with the canvas roller 10. This connects the output of the stepper motor inside the limiting frame 9 to the canvas roller 10. When the canvas roller 10 rotates, the positioning frame 11 rotates synchronously with the limiting frame 9, maintaining stability. At this point, the canvas passes through the two auxiliary rollers 12 below. Figure 3 and Figure 5As shown, the limiting slide 13 in the groove of the auxiliary roller 12 slides, and a spring is installed between the auxiliary roller 12 and the limiting slide 13. When the canvas has a slight lateral deviation during the rolling process, the limiting slide 13 will automatically fine-tune according to the position of the canvas, always maintain close contact with the canvas, further restrict the lateral movement of the canvas, ensure that the canvas always stays in the appropriate position during the rolling process, avoid deviation, and thus effectively prevent jamming.

[0040] During the transfer of the canvas to the auxiliary roller 12, it passes through the opening of the limiting ball frame 7, causing the balls inside the limiting ball frame 7 to contact and roll with the canvas, transforming the traditional sliding friction into rolling friction, which significantly reduces the friction with the canvas. The setting of the balls in the limiting ball frame 7 plays a guiding and initial limiting role, and also reduces the wear of the canvas. The limiting ball frame 7 is slidably connected to the strip sleeve embedded in the positioning side plate 5 at one end, and its position can be flexibly adjusted within a certain range to adapt to canvases of different widths.

[0041] Working principle: When using this scrolling lightbox that avoids canvas wear and jamming, the support base 1 serves as the basic component, supporting the entire scrolling lightbox. The positioning frame 2 is fixed on its upper end. The flip-top closing covers 3 on both sides of the positioning frame 2 together form the lightbox shell. The display glass 4 inside the closing cover 3 is used to display the canvas inside. There is a canvas roller 10 at each end of the canvas. The canvas roller 10 is inserted into the limiting frame 9 through the positioning frame 11 at both ends. The motor shafts in the two limiting frames 9 are respectively connected to one canvas roller 10. The two canvas rollers 10 are powered by electricity to make the canvas rotate.

[0042] At this time, the two canvas rollers 10 are arranged in parallel, and the canvas and the two auxiliary rollers 12 are bypassed. The position of the canvas is restricted by the limiting slide 13. The limiting slide 13 moves through the groove on the surface of the auxiliary rollers 12. When the canvas rolls, the limiting slide 13 can slide in the groove and can be finely adjusted according to the position of the canvas, further restricting the lateral movement of the canvas and ensuring that the canvas stays in the right position during the rolling process, avoiding deviation and jamming. The LED light strip on the surface of the light frame 8 provides a light source for the canvas display. The Y-shaped openings of the limiting ball frame 7 pass through both sides of the canvas. The balls in the limiting ball frame 7 can reduce the friction with the canvas, play a guiding and initial limiting role, and reduce the risk of canvas wear. Since the limiting ball frame 7 is slidably connected to the strip sleeves embedded on both sides of the trapezoidal protrusion on the surface of the positioning side plate 5 at one end, the position of the limiting ball frame 7 can be adjusted to adapt to different canvas conditions, increasing the overall practicality.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A scrolling lightbox to prevent canvas wear and jamming, comprising: The support base (1) is a square base. The upper end of the support base (1) is fixed with a positioning frame (2), and the two sides of the positioning frame (2) are rotatably connected with a closing cover (3). The support base (1), the positioning frame (2) and the closing cover (3) together constitute the scrolling light box shell. The feature is that: the closed cover (3) is fitted with a display glass (4), and the inner wall of the positioning frame (2) has two positioning side plates (5), and the two positioning side plates (5) are installed on the inner wall of the positioning frame (2) by bolts. The upper and lower ends of the positioning side plates (5) have four shielding plates (6). The positioning side plate (5) is fitted with a light frame (8), and LED light strips are evenly fixed on both sides of the light frame (8). There is a limiting ball frame (7) on each side of the positioning side plate (5). The limiting ball frame (7) is composed of a Y-shaped frame, and the canvas passes through the opening of the limiting ball frame (7). Two auxiliary rollers (12) are provided at the bottom of the positioning side plate (5), and the surfaces of the two ends of the auxiliary rollers (12) are provided with grooves. The limiting slide plate (13) is slidably connected in the groove of the auxiliary roller (12), and a spring is installed between the limiting slide plate (13) and the auxiliary roller (12).

2. A scrolling lightbox for avoiding canvas wear and jamming according to claim 1, characterized in that: The display glass (4) abuts against two shields (6) on the same side, and the four shields (6) are arranged in two groups of two, with two groups on both sides of the positioning side plate (5).

3. A scrolling lightbox for avoiding canvas wear and jamming according to claim 1, characterized in that: The positioning side plate (5) has a trapezoidal protrusion structure on its surface, and a strip-shaped sleeve is embedded on each side of the trapezoidal protrusion of the positioning side plate (5).

4. A scrolling lightbox for avoiding canvas wear and jamming according to claim 1, characterized in that: The strip-shaped sleeve of the positioning side plate (5) is slidably connected to one end of the limiting ball frame (7), and there is a limiting frame (9) above the limiting ball frame (7), and there is an auxiliary roller (12) below the limiting ball frame (7).

5. A scrolling lightbox for avoiding canvas wear and jamming according to claim 1, characterized in that: The limiting ball holder (7) has symmetrically arranged strip-shaped silicone strips inside the opening, and balls are equidistantly embedded in the strip-shaped silicone strips of the limiting ball holder (7).

6. A scrolling lightbox for avoiding canvas wear and jamming according to claim 4, characterized in that: There are 4 limiting frames (9), and every 2 limiting frames (9) are on the surface of the positioning side plate (5), and a motor is installed in the limiting frame (9) on the same side. The end face of the limiting frame (9) abuts against the end face of the canvas roller (10).

7. A scrolling lightbox for avoiding canvas wear and jamming according to claim 6, characterized in that: The canvas roller (10) is slidably connected to a positioning frame (11) on both sides, and the positioning frame (11) is inserted into the limiting frame (9).

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