Plastic steel lamp box frame section

By using multi-dimensional snap-fitting and corner code fixing of the frame and connecting mechanism, the problems of easy loosening of the fabric in the plastic steel light box frame profile and cumbersome operation are solved, realizing the stable fixing and easy replacement of the light box fabric, improving installation efficiency and reducing maintenance costs.

CN224383868UActive Publication Date: 2026-06-19朱刚强

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
朱刚强
Filing Date
2025-07-12
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The existing plastic steel light box frame profiles have a simple design for fixing the fabric, which makes the fabric prone to wrinkles and loosening. Replacing the fabric is also cumbersome and increases maintenance costs.

Method used

The design employs four frame mechanisms and four connecting mechanisms, combined with the first and second fabric clamping mechanisms, to achieve full-range stable fixation of the lightbox fabric through snap-fit ​​and corner bracket fixing, simplifying the installation process and reducing maintenance costs.

Benefits of technology

It achieves a tight fit and flatness of the lightbox fabric, shortens installation time, reduces subsequent maintenance costs, and facilitates fabric replacement.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224383868U_ABST
    Figure CN224383868U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of lamp box frame section bar, disclose a kind of plastic steel lamp box frame section bar, including four frame mechanisms and four connecting mechanisms, four the frame mechanism upper end is uniformly provided with first cloth mechanism, four the connecting mechanism upper end is uniformly provided with second cloth mechanism.In the utility model, first cloth mechanism and second cloth mechanism work together, realize the stable fixation of lamp box cloth full range, the first fixed plate of side edge and first moving plate are adjusted spacing by bolt, cooperate first anti-skid line clamping cloth edge, prevent cloth surface slack due to tension, the second fixed plate of corner and second moving plate can be flexibly adjusted position, second anti-skid line enhances friction, expansion plate telescopic adaptation corner length change with moving plate, ensure that cloth surface can also be closely attached at edge, when replacing cloth surface, just loosen bolt sliding moving plate, without disassembling frame, it is easy and quick to operate, both ensure the flatness of lamp box cloth long-term use, and reduce later maintenance cost.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of light box frame profiles, and in particular to a plastic steel light box frame profile. Background Technology

[0002] Plastic steel light box frame profiles are made of polyvinyl chloride as the main raw material, with the addition of stabilizers, colorants, etc. They are used for the frame structure of light box frames, and are characterized by being lightweight, corrosion-resistant, and easy to process. They are used to fix the light box panel and internal light source, and also serve as a support and decoration. They are widely used in advertising light boxes and signs, and can improve the overall stability and aesthetics of the light box.

[0003] Existing PVC lightbox frame profiles mostly have simple lightbox fabric fixing mechanisms, which can only fix the sides of the fabric and lack effective fixing devices at the corners. This makes the fabric prone to wrinkles and loosening due to uneven tension. Moreover, replacing the fabric requires disassembling part of the frame, which is cumbersome and increases the later maintenance costs. Therefore, those skilled in the art have provided a PVC lightbox frame profile to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a plastic steel lightbox frame profile that significantly shortens installation time. At the same time, the rectangular frame structure is stable and provides solid support for the lightbox. The operation is simple and quick, ensuring the flatness of the lightbox fabric for long-term use and reducing later maintenance costs.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A plastic steel light box frame profile includes four frame mechanisms and four connecting mechanisms. Each of the four frame mechanisms is provided with a first fastening mechanism at its upper end, and each of the four connecting mechanisms is provided with a second fastening mechanism at its upper end.

[0007] Each of the four frame mechanisms includes a frame body, and each of the four frame bodies has a first corner code groove on one side of its upper end. Each of the four frame bodies also has a reinforcing groove at the lower front position of one side of its lower end. Each of the four connecting mechanisms includes a connecting corner, and each of the four connecting corners has a second corner code groove on its upper end. Each of the four first fabric clamping mechanisms includes a first fixing plate, multiple first fixing bolts, and a first moving plate. Each of the four first fixing plates and the first moving plate has a first anti-slip texture on one side opposite to the other. Each of the four second fabric clamping mechanisms includes a second fixing plate, two second moving plates, multiple second fixing bolts, and a telescopic plate. Each of the four second fixing plates and the multiple second moving plates has a second anti-slip texture on one side opposite to the other.

[0008] Furthermore, the four frame mechanisms are fixedly connected by four connecting mechanisms.

[0009] Furthermore, each of the four frames has a connecting groove at the rear of the upper end on one side, and an assembly groove at the rear of the lower end on one side.

[0010] Furthermore, a first locking block is fixedly provided at the lower front position on both sides of the four connecting corners, and a second locking block is fixedly provided at the lower rear position on both sides of the four connecting corners.

[0011] Furthermore, a third locking block is fixedly installed at the upper rear position on both sides of the four connecting corners.

[0012] Furthermore, each of the four first movable plates is slidably disposed inside the first fixed plate on one side, and each of the four first movable plates is fixedly connected to the first fixed plate by a plurality of first fixing bolts.

[0013] Furthermore, each of the second movable plates is slidably disposed inside the second fixed plate on one side, and the four second movable plates are fixedly connected by a plurality of second fixing bolts and the second fixed plate.

[0014] Furthermore, both sides of the four telescopic plates are fixedly connected to the second movable plate.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model proposes a plastic steel lightbox frame profile. This profile achieves a firm assembly through the multi-dimensional cooperation of the frame mechanism and the connecting mechanism. The first, second, and third corner clips are respectively inserted into the assembly groove, reinforcing groove, and connecting groove of the frame to form a three-dimensional snap-fit ​​structure. With the corner bracket fixing of the first and second corner bracket grooves, the adjacent frames are tightly connected without loosening, and the overall frame's resistance to deformation is significantly improved. This splicing method does not require complicated tools. Assembly can be completed by snap-fit ​​and corner bracket reinforcement, which greatly shortens the installation time. At the same time, the rectangular frame structure is stable and can provide solid support for the lightbox.

[0017] 2. This utility model proposes a plastic steel lightbox frame profile. The first and second fabric clamping mechanisms work together to achieve a stable fixation of the lightbox fabric throughout its entire range. The first fixed plate and the first movable plate on the side are spaced apart by bolts, and the first anti-slip texture clamps the fabric edge to prevent the fabric from loosening due to tension. The second fixed plate and the second movable plate at the corner can be flexibly adjusted in position. The second anti-slip texture enhances friction. The telescopic plate adapts to the change in corner length as the movable plate extends and retracts, ensuring that the fabric fits tightly at the corners. When replacing the fabric, simply loosen the bolts and slide the movable plate; there is no need to disassemble the frame. The operation is simple and quick, ensuring the flatness of the lightbox fabric for long-term use and reducing later maintenance costs. Attached Figure Description

[0018] Figure 1This is an axonometric view of the present invention;

[0019] Figure 2 This is a schematic diagram of the frame mechanism structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the connection mechanism structure of this utility model;

[0021] Figure 4 This is an enlarged view of section A of this utility model.

[0022] Legend:

[0023] 1. Frame mechanism; 2. Connecting mechanism; 3. First fabric clamping mechanism; 4. Second fabric clamping mechanism; 101. Frame body; 102. Connecting groove; 103. First corner bracket groove; 104. Reinforcing groove; 105. Assembly groove; 201. Connecting corner; 202. First clamping block; 203. Second clamping block; 204. Second corner bracket groove; 205. Third clamping block; 301. First fixing plate; 302. First fixing bolt; 303. First anti-slip texture; 304. First moving plate; 401. Second fixing plate; 402. Second anti-slip texture; 403. Second moving plate; 404. Second fixing bolt; 405. Telescopic plate. Detailed Implementation

[0024] 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.

[0025] Reference Figure 1-4 The present invention provides an embodiment of a plastic steel light box frame profile, comprising four frame mechanisms 1 and four connecting mechanisms 2. Each of the four frame mechanisms 1 is provided with a first fabric clamping mechanism 3 at its upper end, and each of the four connecting mechanisms 2 is provided with a second fabric clamping mechanism 4 at its upper end. The four frame mechanisms 1 are fixedly connected by the four connecting mechanisms 2.

[0026] Specifically, four frame mechanisms 1 constitute the main frame of the light box, four connecting mechanisms 2 are used to connect adjacent frame mechanisms 1 to form a rectangular light box frame, and the first fabric clamping mechanism 3 and the second fabric clamping mechanism 4 are used to fix the fabric of the light box to prevent the fabric from loosening. All parts work together to achieve the stable assembly of the light box frame and the reliable fixation of the fabric.

[0027] Reference Figure 1-3Each of the four frame mechanisms 1 includes a frame body 101. A connecting groove 102 is provided on the upper rear position of one side of each of the four frame bodies 101. A first corner code groove 103 is provided on one side of the upper end of each of the four frame bodies 101. A reinforcing groove 104 is provided on the lower front position of one side of each of the four frame bodies 101. An assembly groove 105 is provided on the lower rear position of one side of each of the four frame bodies 101. Each of the four connecting mechanisms 2 includes a connecting corner 201. A second corner code groove 204 is provided on the upper end of each of the four connecting corners 201. A first locking block 202 is fixedly provided on the lower front position of both sides of each of the four connecting corners 201. A second locking block 203 is fixedly provided on the lower rear position of both sides of each of the four connecting corners 201. A third locking block 205 is fixedly provided on the upper rear position of both sides of each of the four connecting corners 201.

[0028] Specifically, in the frame mechanism 1, the frame 101 is the basic frame structure, the connecting groove 102 is used to fix related components, the first corner code groove 103 cooperates with the second corner code groove 204 of the connecting corner 201 to enhance the connection stability through the corner code, the reinforcing groove 104 and the assembly groove 105 are used to cooperate with the locking blocks of the connecting mechanism 2 to achieve connection. In the connecting mechanism 2, the connecting corner 201 has a right angle structure, the first locking block 202 is inserted into the assembly groove 105, the second locking block 203 is inserted into the reinforcing groove 104, and the third locking block 205 is inserted into the connecting groove 102 to achieve a tight connection between the connecting corner 201 and the frame 101.

[0029] Reference Figure 2-4 Each of the four first fabric clamping mechanisms 3 includes a first fixed plate 301, multiple first fixed bolts 302, and a first movable plate 304. Each of the four first fixed plates 301 and the first movable plate 304 has a first anti-slip texture 303 on one side. Each of the four first movable plates 304 is slidably disposed inside the first fixed plate 301 on one side. Each of the four first movable plates 304 is fixedly connected to the first fixed plate 301 by multiple first fixed bolts 302. Each of the four second fabric clamping mechanisms 4 includes a second fixed plate 401, two second movable plates 403, multiple second fixed bolts 404, and a telescopic plate 405. Each of the four second fixed plates 401 and the multiple second movable plates 403 has a second anti-slip texture 402 on one side. Each of the multiple second movable plates 403 is slidably disposed inside the second fixed plate 401 on one side. Each of the four second movable plates 403 is fixedly connected to the second fixed plate 401 by multiple second fixed bolts 404. Both sides of each of the four telescopic plates 405 are fixedly connected to the second movable plates 403.

[0030] Specifically, in the first fabric clamping mechanism 3, the first fixed plate 301 is fixed to the frame 101, the first movable plate 304 can slide to adjust the distance between itself and the first fixed plate 301, and is fixed by the first fixed bolt 302. The first anti-slip texture 303 increases the friction of the fabric surface to prevent slippage and is used to fix the side of the lightbox fabric. In the second fabric clamping mechanism 4, the second fixed plate 401 is fixed to the connecting corner 201, the second movable plate 403 slides to adjust the distance and is fixed by the second fixed bolt 404, the second anti-slip texture 402 enhances the fixing effect, and the telescopic plate 405 adapts to the length requirements of different connection positions and is used to fix the corner of the lightbox fabric. The telescopic plate 405 is an elastic metal telescopic plate 405, composed of multiple nested metal sheets, which can extend and retract in length with the sliding of the second movable plate 403 to adapt to the length requirements of different connection positions and is used to fix the corner of the lightbox fabric.

[0031] Working principle: When assembling the plastic steel lightbox frame, first connect the connecting corners 201 of the four connecting mechanisms 2 to the frame bodies 101 of the four frame mechanisms 1 respectively. Insert the first locking blocks 202 on both sides of the connecting corner 201 into the assembly slots 105 of the frame body 101, the second locking blocks 203 into the reinforcing slots 104, and the third locking blocks 205 into the connecting slots 102, so that the connecting corners 201 and the frame body 101 fit tightly. At this time, the first corner code slots 103 and the second corner code slots 204 are aligned. The corner codes can be inserted and fixed to further strengthen the connection and form a rectangular lightbox frame. When installing the lightbox fabric, for the side lightbox fabric, place the fabric edge between the first fixing plate 301 and the first moving plate 304 of the first fabric clamping mechanism 3, slide the first moving plate 304 to make it close to the fabric surface, and tighten the first fixing bolts 302 to fix it. The first anti-slip texture 303 increases the friction and prevents the fabric surface from loosening and slipping. For the corner lightbox fabric, the corner portion of the fabric is placed between the second fixed plate 401 and the second movable plate 403 of the second fabric clamping mechanism 4. The position of the second movable plate 403 is adjusted according to the fabric tension, and the second fixed bolt 404 is tightened to fix it. The second anti-slip texture 402 enhances the fixing effect. The telescopic plate 405 extends and retracts with the movement of the second movable plate 403 to adapt to the change in connection length at the corner, ensuring that the lightbox fabric can also be firmly fixed at the corner. If the lightbox fabric needs to be replaced, simply loosen the first fixed bolt 302 and the second fixed bolt 404, slide the movable plate to remove the old fabric, replace it with a new fabric, and then re-fix it. The entire structure forms a stable frame through the firm connection between the frame mechanism 1 and the connecting mechanism 2. The first fabric clamping mechanism 3 and the second fabric clamping mechanism 4 enable convenient installation and fixing of the lightbox fabric, and facilitate later maintenance and replacement. It is suitable for the production and installation of various plastic steel lightboxes.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 plastic steel lightbox frame profile, comprising four frame mechanisms (1) and four connecting mechanisms (2), characterized in that: Each of the four frame mechanisms (1) is provided with a first fabric clamping mechanism (3) at its upper end, and each of the four connecting mechanisms (2) is provided with a second fabric clamping mechanism (4) at its upper end. Each of the four frame mechanisms (1) includes a frame body (101), and each of the four frame bodies (101) has a first corner code groove (103) on one side of its upper end. Each of the four frame bodies (101) has a reinforcing groove (104) at the lower front position of one side of its lower end. Each of the four connecting mechanisms (2) includes a connecting corner (201), and each of the four connecting corners (201) has a second corner code groove (204) on its upper end. Each of the four first fastening mechanisms (3) includes a first fixing plate (301) and a plurality of first fixing bolts. (302) and the first movable plate (304), the four first fixed plates (301) and the first movable plate (304) are provided with a first anti-slip texture (303) on the opposite side, the four second fastening mechanisms (4) each include a second fixed plate (401), two second movable plates (403), multiple second fixed bolts (404) and a telescopic plate (405), the four second fixed plates (401) and the multiple second movable plates (403) are provided with a second anti-slip texture (402) on the opposite side.

2. The PVC lightbox frame profile according to claim 1, characterized in that: The four frame mechanisms (1) are fixedly connected by four connecting mechanisms (2).

3. The PVC lightbox frame profile according to claim 1, characterized in that: Each of the four frames (101) has a connecting groove (102) at the rear of the upper end on one side, and an assembly groove (105) at the rear of the lower end on one side.

4. The PVC lightbox frame profile according to claim 1, characterized in that: A first locking block (202) is fixedly installed at the lower front position on both sides of the four connecting corners (201), and a second locking block (203) is fixedly installed at the lower rear position on both sides of the four connecting corners (201).

5. The PVC lightbox frame profile according to claim 1, characterized in that: A third locking block (205) is fixedly installed at the upper end of the rear position on both sides of the four connecting corners (201).

6. The PVC lightbox frame profile according to claim 1, characterized in that: The four first movable plates (304) are slidably disposed inside the first fixed plate (301) on one side, and the four first movable plates (304) are fixedly connected to the first fixed plate (301) by a plurality of first fixing bolts (302).

7. The PVC lightbox frame profile according to claim 1, characterized in that: The second movable plates (403) are slidably disposed inside the second fixed plate (401) on one side, and the four second movable plates (403) are fixedly connected to the second fixed plate (401) by a plurality of second fixing bolts (404).

8. The PVC lightbox frame profile according to claim 1, characterized in that: Both sides of the four telescopic plates (405) are fixedly connected to the second movable plate (403).