Lamp box with canvas capable of being rapidly replaced
By designing structures such as a roll box, canvas roll, connecting rod, and sliding block, the problem of needing to disassemble the outer shell to replace the canvas in existing advertising light boxes has been solved, achieving a quick and easy canvas replacement and fixation effect.
Patent Information
- Application Number
- CN202520186367.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-06
AI Technical Summary
The existing advertising light boxes require disassembling the outer shell when changing the canvas, which is inconvenient to operate and difficult to fix.
The design incorporates a roll box, canvas roll, connecting rod, slider, and button. The canvas can be quickly installed and removed using elastic blocks and latches. The slider slides in the sliding groove and is fixed by the button and spring. The knob drives the canvas roll to rotate, thus rolling up and unrolling the canvas.
It enables quick canvas replacement without disassembling the outer casing, making the operation simple, time-saving, and labor-saving. The canvas replacement is neat and has a good fixing effect.
Smart Images
Figure CN223784862U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lightbox technology, and in particular to a lightbox with a quickly changeable canvas. Background Technology
[0002] Advertising light boxes are tools installed on walls and other locations to facilitate advertisers' promotion of their businesses. They combine the advantages of neon lights, flashing continuously day and night, using a combination of movement and stillness to attract attention. Various texts and patterns jump and alternate in an orderly fashion, creating a strong visual impact. While satisfying the viewer's visual experience, they can also help advertisers achieve maximum economic benefits. LED electronic flashing light boxes have become a shining jewel in the future of the advertising industry. Common advertising light boxes typically include a square frame and a back panel for fixed attachment to the wall.
[0003] When replacing the canvas inside existing advertising light boxes, it is usually necessary to disassemble the outer shell of the light box and then take out the canvas for replacement. This replacement method is relatively troublesome and inconvenient to operate, and it is also inconvenient to fix the canvas. In order to overcome the shortcomings of existing technology, we propose a light box that can quickly replace the canvas. Utility Model Content
[0004] The main purpose of this invention is to provide a lightbox with a quickly changeable canvas, which can effectively solve the problems in the background technology.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A lightbox with a quickly changeable canvas includes a lightbox body. A transparent cover is located in the middle of the front outer surface of the lightbox body. A scroll box is located at the lower end of the lightbox body. Two sets of elastic locking blocks are provided between the upper two sides of the scroll box and the lower two sides of the lightbox body. Sliding grooves are provided on both side walls of the lightbox body. A canvas scroll is located in the middle of the scroll box. A knob is located on the outer wall of one end of the scroll box, and the knob is connected to one end of the canvas scroll. The canvas body is wound around the outer wall of the canvas scroll. The upper end of the canvas body is provided with a connecting rod inside the light box body. Both ends of the connecting rod are provided with sliding blocks in the middle of the sliding grooves on both sides. Buttons are provided on the outer side walls of both sets of sliding blocks. Movable latches are provided on the inner side walls of both sets of sliding blocks. A connecting plate is provided inside the sliding block between the rear end of the movable latch and the rear end of the button. A spring is provided between the rear ends of both sets of buttons. A latch is provided on the inner walls of both sides of the upper end of the light box body. The movable latch engages with the latch.
[0007] Preferably, a latch is provided between the elastic block and the lower end of the light box body, the elastic block is detachably connected to the lower end of the light box body through the latch, the elastic block is made of elastic plastic, and the roll box is detachably connected to the light box body through the elastic block.
[0008] Preferably, a rotating interface is provided between both ends of the canvas roll and the inner wall of the roll box, and the two ends of the canvas roll are rotatably connected to the inner wall of the roll box through the rotating interface. A rotating interface is provided between the knob and one side wall of the roll box, and the knob is rotatably connected to the side wall of the roll box through the rotating interface.
[0009] Preferably, the sliding block is slidably connected to the sliding groove, the connecting rod is slidably connected to the inner wall of the light box body through the provided sliding block, and adhesive is provided between the upper end of the canvas body and the bottom of the connecting rod, and the upper end of the canvas body is adhesively connected to the bottom of the connecting rod through the provided adhesive.
[0010] Preferably, an opening is provided between the sidewall of the movable block and the sliding block, and the movable block is movably connected to the sidewall of the sliding block through the opening.
[0011] Preferably, a movable hole is provided between the button and the side wall of the slider, the button is movably connected to the side wall of the slider through the movable hole, and the two sets of buttons are elastically connected to the inner wall of the slider through a spring.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. In this utility model, the roller box, canvas roller, canvas body connecting rod, and sliding block can easily replace the canvas of the advertising light box without disassembling the outer shell of the advertising light box. Simply install the roller box at the lower end of the light box body and fit the sliding block into the sliding grooves on both sides of the light box body to easily install the canvas inside the light box. The operation is more convenient and faster, saving time and effort. The canvas roller can also make it easier to roll up the canvas, making the canvas replacement neater.
[0014] 2. In this utility model, the button, movable latch and spring can easily fix the sliding block to the inner wall of the sliding groove, preventing the sliding block from sliding off the middle of the sliding groove, making the canvas better fixed inside the light box body. People can also easily detach the sliding block from the middle of the sliding groove, making the disassembly and replacement process more convenient. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the disassembly and connection structure of the canvas roll and roll box of this utility model;
[0017] Figure 3 This is a schematic diagram of the connection structure between the movable card block and the button of this utility model;
[0018] Figure 4 This is a schematic diagram of the disassembled structure of the light box body of this utility model.
[0019] In the diagram: 1. Lightbox body; 2. Transparent cover; 3. Roll box; 4. Sliding groove; 5. Sliding block; 6. Connecting rod; 7. Canvas body; 8. Canvas roll; 9. Button; 10. Movable latch; 11. Elastic latch; 12. Connecting plate; 13. Spring; 14. Bayonet; 15. Knob. Detailed Implementation
[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0021] like Figures 1-2 As shown, the interior of the lightbox body 1 is used to install and display the canvas. A transparent cover 2 is provided in the middle of the front outer surface of the lightbox body 1. The transparent cover 2 is made of transparent material, making it easy for people to observe the content displayed inside the lightbox body 1. A scroll box 3 is provided at the lower end of the lightbox body 1. Two sets of elastic blocks 11 are provided between the upper two sides of the scroll box 3 and the lower two sides of the lightbox body 1. The elastic blocks 11 are made of elastic plastic and have a certain deformation performance. A latch is provided between the elastic blocks 11 and the lower end of the lightbox body 1, and the elastic blocks 11 and the latch are detachably connected. The scroll box 3 is detachably connected to the lower end of the lightbox body 1 through the elastic blocks 11. Sliding grooves 4 are provided on both side walls of the lightbox body 1. A canvas scroll 8 is provided in the middle of the scroll box 3. Rotating interfaces are provided between the two ends of the scroll 8 and the inner wall of the scroll box 3. The canvas scroll 8 is rotatably connected to the inner wall of the scroll box 3 through the rotating interfaces. A knob 15 is provided on the outer wall of one end of the scroll box 3. The knob 15 is connected to one end of the canvas scroll 8. Rotating the knob 15 can rotate the canvas scroll 8 in the middle of the scroll box 3. The canvas body 7 is wrapped around the outer wall of the canvas scroll 8. The canvas scroll 8 is used to roll up the canvas body 7. A connecting rod 6 is provided inside the light box body 1 at the upper end of the canvas body 7. The upper end of the canvas body 7 is pasted to the lower end of the connecting rod 6. Sliding blocks 5 are provided in the middle of the sliding grooves 4 on both sides of the connecting rod 6. The sliding blocks 5 can slide in the middle of the sliding grooves 4. The connecting rod 6 can move inside the light box body 1 through the sliding blocks 5.
[0022] like Figures 2-4As shown, buttons 9 are provided on both outer sidewalls of the two sets of sliding blocks 5. Movable holes are provided between the buttons 9 and the sidewalls of the sliding blocks 5, allowing the buttons 9 to movably connect to the sidewalls of the sliding blocks 5 through these holes. Movable latches 10 are provided on both inner sidewalls of the two sets of sliding blocks 5. Movable openings are provided between the movable latches 10 and the sidewalls of the sliding blocks 5, allowing the movable latches 10 to movably connect to the sidewalls of the sliding blocks 5 through these openings. The rear end of the movable latches 10 and the rear end of the buttons 9 are located inside the sliding blocks 5. Each is equipped with a connecting plate 12, which connects the rear end of the movable block 10 and the rear end of the button 9 inside the sliding block 5. A spring 13 is provided between the rear ends of the two sets of buttons 9. The buttons 9 are elastically connected to the inner wall of the sliding block 5 through the spring 13. The inner walls on both sides of the upper end of the light box body 1 are provided with slots 14. The movable block 10 engages with the slots 14. When the sliding block 5 slides to the upper end of the sliding groove 4, the movable block 10 engages with the slots 14 to lock the sliding block 5 in the middle of the sliding groove 4.
[0023] It should be noted that this utility model is a lightbox with a quick-change canvas. In use, the scroll box 3 is installed at the lower end of the lightbox body 1 via the elastic locking block 11. At the same time, the sliding blocks 5 on both sides of the connecting rod 6 are fitted into the sliding grooves 4 on both sides of the lightbox body 1. When people pinch the buttons 9 on both sides of the outer wall of the two sets of sliding blocks 5, they slide the sliding blocks 5 upward, which drives the connecting rod 6 to move upward inside the lightbox body 1. The lower end of the connecting rod 6 will pull the canvas body 7 to unfold inside the lightbox body 1, and the sliding blocks 5 will move to the sliding grooves 4. After the top of the slot 4, release button 9, and the movable latch 10 will engage with the latch 14, locking the sliding block 5 in the middle of the sliding slot 4 to fix the sliding block 5. When it is necessary to disassemble and replace, pinch button 9 on the side wall of the sliding block 5 again to move the sliding block 5 downward, while turning the knob 15 on the side wall of the scroll box 3. The animation canvas scroll 8 will rotate in the middle of the scroll box 3, rolling the canvas body 7 onto the outer wall of the canvas scroll 8. Then, remove the scroll box 3 from the bottom of the lightbox body 1 to replace it with a new scroll box 3.
[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A lightbox with a quickly changeable canvas, comprising a lightbox body (1), characterized in that: A transparent cover plate (2) is provided in the middle of the front outer surface of the light box body (1). A scroll box (3) is provided at the lower end of the light box body (1). Two sets of elastic locking blocks (11) are provided between the upper two sides of the scroll box (3) and the lower two sides of the light box body (1). Sliding grooves (4) are provided on both side walls of the light box body (1). A canvas scroll (8) is provided in the middle of the scroll box (3). A knob (15) is provided on the outer wall of one end of the scroll box (3). The knob (15) is connected to one end of the canvas scroll (8). The canvas body (7) is wrapped around the outer wall of the canvas scroll (8). The upper end of the canvas body (7) is on the light box body. (1) is provided with a connecting rod (6) inside. Both ends of the connecting rod (6) are provided with sliding blocks (5) in the middle of the sliding grooves (4) on both sides. Both sides of the two sets of sliding blocks (5) are provided with buttons (9). Both sides of the inner side of the two sets of sliding blocks (5) are provided with movable blocks (10). The rear end of the movable blocks (10) and the rear end of the buttons (9) are provided with a connecting plate (12) inside the sliding block (5). Both sides of the rear end of the two sets of buttons (9) are provided with springs (13). Both sides of the upper end of the light box body (1) are provided with slots (14). The movable blocks (10) are engaged with the slots (14).
2. The lightbox with a quickly changeable canvas according to claim 1, characterized in that: A latch is provided between the elastic latch (11) and the lower end of the light box body (1). The elastic latch (11) is detachably connected to the lower end of the light box body (1) through the latch. The elastic latch (11) is made of elastic plastic. The roll box (3) is detachably connected to the light box body (1) through the elastic latch (11).
3. A lightbox with a quickly changeable canvas according to claim 1, characterized in that: Rotation interfaces are provided between the two ends of the canvas roll (8) and the inner wall of the roll box (3). The two ends of the canvas roll (8) are rotatably connected to the inner wall of the roll box (3) through the provided rotation interfaces. A rotation interface is provided between the knob (15) and one side wall of the roll box (3). The knob (15) is rotatably connected to the side wall of the roll box (3) through the provided rotation interface.
4. A lightbox with a quickly changeable canvas according to claim 1, characterized in that: The sliding block (5) is slidably connected to the sliding groove (4), and the connecting rod (6) is slidably connected to the inner wall of the light box body (1) through the sliding block (5). Adhesive is provided between the upper end of the canvas body (7) and the bottom of the connecting rod (6), and the upper end of the canvas body (7) is bonded to the bottom of the connecting rod (6) through the adhesive.
5. A lightbox with a quickly changeable canvas according to claim 1, characterized in that: An opening is provided between the movable block (10) and the side wall of the sliding block (5), and the movable block (10) is movably connected to the side wall of the sliding block (5) through the opening.
6. A lightbox with a quickly changeable canvas according to claim 1, characterized in that: A movable hole is provided between the button (9) and the side wall of the sliding block (5). The button (9) is movably connected to the side wall of the sliding block (5) through the movable hole. The two sets of buttons (9) are elastically connected to the inner wall of the sliding block (5) through the spring (13).