Slide rail device convenient for replacing canvas for lamp box production

By designing a lightbox sliding rail device, and utilizing elastic limit blocks and snap rings, the automatic unfolding and fixing of the canvas is achieved, solving the problem of inconvenient canvas replacement in existing lightboxes and improving convenience and display effect.

CN223784863UActive Publication Date: 2026-01-09HUNAN CHENGXUN OPTOELECTRONICS CO LTD
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Patent Information

Application Number
CN202520188224.3
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

Technical Problem

The existing lightboxes are inconvenient to change when the canvas is changed, requiring multiple people to assist and are prone to wrinkles, which affects the display effect.

Method used

A sliding rail device including a fixed lightbox, mounting bracket and side frame was designed. Using elastic material limit blocks, compression rings and snap rings, the canvas can be automatically unfolded and fixed by the cooperation of side strips and ball bearings, avoiding manual assistance.

Benefits of technology

It improves the ease of canvas replacement, avoids wrinkles, ensures the canvas is fully unfolded, and enhances the display effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a slide rail device convenient for replacing canvas for lamp box production, which relates to the technical field of lamp box slide rails and comprises a fixed lamp box, a mounting rack is slidably mounted in the fixed lamp box, and a side frame is fixedly mounted on the left side of the mounting rack. According to the sliding rail device facilitating canvas replacement for lamp box production, the clamping rings in the canvas groove and the elastic rings in the groove in the inner side frame are utilized, one side of the canvas is fixed through the elastic rings in the inner side frame, the other side of the canvas is connected between the clamping rings in the canvas groove in an embedded mode, and therefore the canvas can be unfolded conveniently; and the upper end and the lower end of the canvas are limited through the side edge strips, when the side edge strips pass through the extrusion rings on the two sides, the side edge strips on the two sides deform, the upper side and the lower side of the canvas are locked, the canvas is fixed, the canvas is prevented from being wrinkled due to the gravity effect, and the canvas is fully unfolded.
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Description

Technical Field

[0001] This utility model relates to the field of light box slide rail technology, and more specifically, to a slide rail device for light box production that facilitates canvas replacement. Background Technology

[0002] A lightbox generally refers to a box-like structure with an internal lighting source and a surface covered with translucent material to display text and images. Its main function is to illuminate the displayed content, serving purposes such as advertising, information display, and decorative enhancement. It can also highlight the display effect in dimly lit environments and attract people's attention.

[0003] Existing light boxes are not very convenient in terms of canvas replacement. They usually require the entire light box to be disassembled. During the installation process, the operator must hold the canvas until it is completely fixed. Sometimes multiple people are needed to complete this task. Otherwise, the canvas is prone to wrinkles, which affects the display effect. Utility Model Content

[0004] The main objective of this invention is to provide a sliding rail device for easy canvas replacement in lightbox production, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A sliding rail device for easy canvas replacement in lightbox production includes a fixed lightbox, a mounting frame slidably mounted inside the fixed lightbox, and a side frame fixedly mounted on the left side of the mounting frame.

[0007] The fixed light box includes a light box frame, glass sheets are fixedly installed on both sides of the light box frame, mounting rails are fixedly installed at both the upper and lower ends of the inner wall of the light box frame, and fixing bolts are threadedly installed at both the upper and lower ends of the left side of the light box frame.

[0008] The installation track includes a track frame. A limiting block is fixedly installed at the bottom of the inner wall of the track frame. A fixing groove is opened on the left side of the limiting block. Limiting grooves are opened on both sides of the limiting block. Upper grooves are opened on both sides of the upper end of the inner wall of the track frame. Multiple fixing blocks are fixedly installed inside the upper grooves. A compression ring is fixedly installed at one end of the multiple fixing blocks. A sliding block is fixedly installed at the other end of the compression ring. The sliding block is slidably installed inside the upper groove. A rolling shaft is rotatably installed inside the compression ring. The compression ring is arc-shaped and made of elastic material.

[0009] Preferably, the mounting frame includes two mounting frames, with an inner frame fixedly mounted on the right side of each mounting frame. The inner frame is movably fitted inside the light box frame. Positioning blocks are fixedly mounted on both sides of the right end of each mounting frame, and the positioning blocks are slidably mounted on both sides of the inner wall of the track frame.

[0010] Preferably, side strips are fixedly installed at both ends of the two mounting frames facing each other, the side strips are made of elastic material, multiple ball bearings are rotatably installed on both sides of the top of the mounting frame, and a mounting block is fixedly installed on the left side of the top of the mounting frame.

[0011] Preferably, the mounting frame is movably sleeved on the outer surface of the limiting block, the ball bearing is rotatably mounted inside the limiting groove, the mounting block is embedded in the fixed groove, the mounting block is fixedly mounted inside the fixed groove by fixing bolts, the side strips at both ends are movably mounted between the two extrusion rings, and the rolling shaft is rotatably mounted on the outside of the side strips.

[0012] Preferably, the side frame includes an outer frame, and a canvas groove is provided on the left side of the outer frame. Multiple snap rings are fixedly installed on both sides of the inner wall of the canvas groove, and the snap rings are made of elastic material.

[0013] Preferably, the left side of the inner frame is provided with a groove for embedding and installing the canvas, and multiple elastic rings identical to the snap rings are fixedly installed on both sides of the inner wall of the groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. By using the snap rings inside the canvas slot and the elastic rings in the grooves inside the inner frame, the elastic rings inside the inner frame are used to fix one side of the canvas, and the other side of the canvas is fitted between the snap rings inside the canvas slot to fix the other side of the canvas, so that the canvas can be unfolded without the need for other personnel to assist in the installation, thus improving the convenience of canvas installation.

[0016] 2. The side strips limit the upper and lower ends of the canvas. When the mounting frame is pushed into the lightbox frame, the side strips deform as they pass the compression rings on both sides, locking the upper and lower sides of the canvas and fixing it in place. This prevents the canvas from wrinkling due to gravity and allows the canvas to fully unfold. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the fixed light box structure of this utility model;

[0019] Figure 3This is a schematic diagram of the installation track structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the mounting bracket structure of this utility model;

[0021] Figure 5 For the present utility model Figure 4 Schematic diagram of the structure at point A in the middle;

[0022] Figure 6 This is a schematic diagram of the side frame structure of this utility model.

[0023] The attached diagram is labeled as follows: 1. Fixed light box; 2. Mounting bracket; 3. Side frame; 11. Light box frame; 12. Glass plate; 13. Fixing bolt; 14. Mounting track; 141. Track frame; 142. Limiting block; 143. Fixing groove; 144. Limiting groove; 145. Upper side groove; 146. Fixing block; 147. Compression ring; 148. Sliding block; 149. Rolling shaft; 21. Mounting frame; 22. Inner frame; 23. Positioning block; 24. Mounting block; 25. Ball bearing; 26. Side strip; 31. Outer frame; 32. Canvas groove; 33. Snap-fit ​​ring. Detailed Implementation

[0024] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0025] As attached Figure 1 - Appendix Figure 6 As shown, an embodiment of this utility model provides a sliding rail device for easy canvas replacement in lightbox production, including a fixed lightbox 1, a mounting bracket 2 and a side frame 3. The mounting bracket 2 is slidably installed inside the fixed lightbox 1, and the left side of the mounting bracket 2 is fixedly installed with the side frame 3. The side frame 3 is detachably installed on the left side of the fixed lightbox 1.

[0026] like Figure 2 As shown, the fixed light box 1 includes a light box frame 11, a glass plate 12 and mounting rails 14 fixedly installed at the upper and lower ends of the inner wall of the light box frame 11. The two sides of the light box frame 11 are respectively fixedly installed with two glass plates 12. The upper and lower ends of the left side of the light box frame 11 are threaded with fixing bolts 13.

[0027] like Figure 3As shown, the mounting track 14 includes a track frame 141, a limiting block 142, and a compression ring 147. The bottom end of the inner wall of the track frame 141 is fixedly installed with the limiting block 142. A fixing groove 143 is provided on the left side of the limiting block 142. Limiting grooves 144 are provided on both sides of the limiting block 142. Upper grooves 145 are provided on both sides of the upper end of the inner wall of the track frame 141. Multiple fixing blocks 146 are fixedly installed inside the upper groove 145. One end of the multiple fixing blocks 146 is fixedly installed with the compression ring 147. A sliding block 148 is fixedly installed on the other end of the compression ring 147. The sliding block 148 is slidably installed inside the upper groove 145. A rolling shaft 149 is rotatably installed inside the compression ring 147. The compression ring 147 is arc-shaped and made of elastic material.

[0028] like Figure 2 - Figure 6 As shown, the mounting frame 2 includes two mounting frames 21. An inner frame 22 is fixedly installed on the right side of the two mounting frames 21. The inner frame 22 is movably fitted inside the light box frame 11. Positioning blocks 23 are fixedly installed on both sides of the right end of the mounting frame 21. The positioning blocks 23 are slidably installed on both sides of the inner wall of the track frame 141.

[0029] Among them, side strips 26 are fixedly installed at both ends of the two mounting frames 21 facing each other. The side strips 26 are made of elastic material. Multiple ball bearings 25 are rotatably installed on both sides of the top of the mounting frame 21. A mounting block 24 is fixedly installed on the left side of the top of the mounting frame 21.

[0030] The side strips 26 limit the upper and lower ends of the canvas. When the mounting frame 21 is pushed into the lightbox frame 11, the side strips 26 will contact the sides of the compression rings 147 when they pass the compression rings 147 on both sides. This causes the compression rings 147 to be compressed and deformed. The reaction force of the compression rings 147 then compresses the sides of the side strips 26, causing the side strips 26 on both sides to deform and lock the upper and lower sides of the canvas, thus fixing the canvas.

[0031] Among them, the mounting frame 21 is movably sleeved on the outer surface of the limiting block 142, the ball bearing 25 is rotatably installed inside the limiting groove 144, the mounting block 24 is embedded in the fixed groove 143, the mounting block 24 is fixedly installed inside the fixed groove 143 by the fixing bolt 13, the two side strips 26 are movably installed between the two extrusion rings 147, and the rolling shaft 149 is rotatably installed on the outside of the side strips 26.

[0032] By setting the ball bearing 25, the mounting frame 21 can easily slide on the outer surface of the limiting block 142, making it easy to pull the mounting bracket 2 out of the fixed light box 1, and thus making it easier to replace the canvas.

[0033] like Figure 4As shown in the figure, the side frame 3 includes an outer frame 31. A canvas groove 32 is provided on the left side of the outer frame 31. Multiple snap rings 33 are fixedly installed on both sides of the inner wall of the canvas groove 32. The snap rings 33 are made of elastic material.

[0034] The inner frame 22 has a groove on the left side for mounting the canvas, and multiple elastic rings identical to the snap ring 33 are fixedly installed on both sides of the inner wall of the groove.

[0035] By utilizing the snap-fit ​​rings 33 inside the canvas groove 32 and the elastic rings in the grooves inside the inner frame 22, one side of the canvas can be fitted between the elastic rings inside the inner frame 22. The reaction force of the elastic rings fixes one side of the canvas. Then, the other side of the canvas is fitted between the snap-fit ​​rings 33 inside the canvas groove 32 to fix the other side of the canvas, so that the canvas can be unfolded without the need for other personnel to assist in the installation, thus improving the convenience of canvas installation.

[0036] The working process of this utility model is as follows:

[0037] When the canvas needs to be replaced, the fixing bolt 13 is rotated to move it out of the mounting block 24. The side frame 3 is pulled to move the mounting bracket 2 out of the lightbox frame 11. Then, one side of the canvas is fitted between the elastic rings inside the inner frame 22. The reaction force of the elastic rings is used to fix one side of the canvas. Then, the canvas is unfolded and the other side of the canvas is fitted between the snap rings 33 inside the canvas groove 32. After the snap rings 33 deform, the reaction force fixes the other side of the canvas so that the canvas can be unfolded.

[0038] The top and bottom sides of the canvas are located between the side strips 26 inside the mounting frames 21 at the top and bottom ends, respectively. The canvas is laid inside the mounting frame 21, and the side frame 3 is pushed so that the mounting frame 21 is pushed into the lightbox frame 11. When the side strips 26 pass the compression rings 147 on both sides, the side strips 26 will contact the sides of the compression rings 147, causing the compression rings 147 to be compressed and deformed. Through the reaction force of the compression rings 147, the side strips 26 on both sides are compressed and deformed, locking the top and bottom sides of the canvas and fixing the canvas. When the mounting frame 21 is pushed into the lightbox frame 11, the mounting block 24 is inserted into the fixing groove 143. By rotating the fixing bolt 13, the mounting block 24 is locked into the fixing groove 143, completing the installation.

[0039] Finally, it should be noted that: the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A slide rail device for easy canvas replacement in lightbox production, comprising fixing the lightbox (1), characterized in that: The fixed light box (1) is slidably installed with a mounting bracket (2), and a side frame (3) is fixedly installed on the left side of the mounting bracket (2); The fixed light box (1) includes a light box frame (11), glass plates (12) are fixedly installed on both sides of the light box frame (11), mounting rails (14) are fixedly installed on the upper and lower ends of the inner wall of the light box frame (11), and fixing bolts (13) are threadedly installed on the upper and lower ends of the left side of the light box frame (11). The mounting track (14) includes a track frame (141). A limiting block (142) is fixedly installed at the bottom of the inner wall of the track frame (141). A fixing groove (143) is opened on the left side of the limiting block (142). Limiting grooves (144) are opened on both sides of the limiting block (142). An upper side groove (145) is opened on both sides of the upper end of the inner wall of the track frame (141). Multiple fixing blocks (146) are fixedly installed inside the upper side groove (145). A compression ring (147) is fixedly installed at one end of the multiple fixing blocks (146). A sliding block (148) is fixedly installed at the other end of the compression ring (147). The sliding block (148) is slidably installed inside the upper side groove (145). A rolling shaft (149) is rotatably installed inside the compression ring (147). The compression ring (147) is arc-shaped and made of elastic material.

2. The slide rail device for easy canvas replacement in lightbox production according to claim 1, characterized in that: The mounting frame (2) includes two mounting frames (21). An inner frame (22) is fixedly installed on the right side of the two mounting frames (21). The inner frame (22) is movably fitted inside the light box frame (11). Positioning blocks (23) are fixedly installed on both sides of the right end of the mounting frame (21). The positioning blocks (23) are slidably installed on both sides of the inner wall of the track frame (141).

3. A slide rail device for easy canvas replacement in lightbox production according to claim 2, characterized in that: Side strips (26) are fixedly installed at both ends of the two mounting frames (21) facing each other. The side strips (26) are made of elastic material. Multiple ball bearings (25) are rotatably installed on both sides of the top of the mounting frame (21). A mounting block (24) is fixedly installed on the left side of the top of the mounting frame (21).

4. A slide rail device for easy canvas replacement in lightbox production according to claim 3, characterized in that: The mounting frame (21) is movably sleeved on the outer surface of the limiting block (142), the ball (25) is rotatably installed inside the limiting groove (144), the mounting block (24) is embedded in the fixed groove (143), the mounting block (24) is fixedly installed inside the fixed groove (143) by the fixing bolt (13), the side strips (26) at both ends are movably installed between the two extrusion rings (147), and the rolling shaft (149) is rolled on the outside of the side strip (26).

5. A slide rail device for easy canvas replacement in lightbox production according to claim 2, characterized in that: The side frame (3) includes an outer frame (31), and a canvas groove (32) is provided on the left side of the outer frame (31). Multiple snap rings (33) are fixedly installed on both sides of the inner wall of the canvas groove (32). The snap rings (33) are made of elastic material.

6. A slide rail device for easy canvas replacement in lightbox production according to claim 5, characterized in that: The inner frame (22) has a groove for mounting the canvas on the left side, and multiple elastic rings identical to the snap ring (33) are fixedly installed on both sides of the inner wall of the groove.