Reversible picture pressing device in lamp box

Abstract

The utility model discloses a turnover picture pressing device in a lamp box. Comprising a turnover mechanism and a picture pressing mechanism, and the turnover mechanism comprises a first supporting plate and a second supporting plate. The first supporting plate and the second supporting plate which are hinged to each other are arranged, the second supporting plate is provided with the painting pressing mechanism capable of abutting against the canvas, the first supporting plate and the second supporting plate can be manually overturned, and meanwhile the overturned first supporting plate and the overturned second supporting plate can be fixed through the positioning bolts, so that the canvas can be stably fixed. And a painting pressing mechanism with a base and a vertical cylinder is arranged, a movable rod driven by a spring is arranged in the vertical cylinder, the movable rod is used for directly making contact with and abutting against the canvas, and due to the fact that the spring is telescopic, the movable rod can adapt to the thickness of the canvas, and adaptability is wider.

Description

Technical Field

[0001] The utility model belongs to the technical field of LED light boxes, and in particular relates to a flippable picture pressing device in a light box. Background Art

[0002] A large number of advertising light boxes need to be installed in public areas of subway stations to serve the purpose of lighting and advertising.

[0003] However, at present, the advertising images in such light boxes are mostly fixed to the inner frame of the light box using double-sided adhesive strips. Since the double-sided adhesive strips are easily dried and ineffective after being pasted for a long time, the advertising images will fall off; and when replacing the advertising images, the glue on the double-sided adhesive strips often sticks to the inner frame of the light box, which is inconvenient to remove, making it difficult to paste and fix the subsequent advertising images, and it is inconvenient to replace the advertising cloth, reducing maintenance efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a flippable picture pressing device in a light box to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a flippable picture pressing device in a light box, comprising a flipping mechanism 1 and a picture pressing mechanism 2.

[0006] The flip mechanism comprises a support plate 1 and a support plate 2; one side edge of the support plate 1 has an inner shaft, and one side edge of the support plate 2 has two sleeves movably connected to the inner shaft and sleeved on both ends of the inner shaft; the sleeves are provided with positioning bolts for fixing the sleeves;

[0007] The painting pressing mechanism comprises a base fixedly connected to the second support plate; a vertical tube is fixed on the base, and the vertical tube is movably connected to a movable rod; a spring is built into the vertical tube to drive the movable rod to move in a direction away from the second support plate; the movable rod is used to press the canvas in the light box.

[0008] One end of the movable rod is located in the vertical tube and is fixedly connected to a baffle; one end of the spring is connected to the movable rod through the baffle.

[0009] Preferably, the support plate has a base plate and a clamping plate arranged opposite to each other;

[0010] The flippable pressing device in the light box also includes a mounting plate installed between the bottom plate and the clamping plate;

[0011] The bottom plate and the clamping plate are slidably clamped on both sides of the mounting plate.

[0012] Preferably, the clamping plate is penetrated by a plurality of locking bolts which are screwed to the clamping plate;

[0013] An end of the locking bolt abuts against the mounting plate to fix the mounting plate.

[0014] Preferably, the base is fixedly connected to the support plate 2 by a plurality of fixing bolts distributed in a matrix.

[0015] Preferably, a pressure ball for contacting the canvas is fixed to the other end of the movable rod.

[0016] Technical effects and advantages of the utility model:

[0017] (1) In the utility model, support plates 1 and 2 are hinged to each other, and a painting pressing mechanism is provided on support plate 2 for pressing the canvas. In addition, support plates 1 and 2 can be manually flipped over, and the flipped support plates 1 and 2 can be fixed by positioning bolts, so that the canvas can be stably fixed.

[0018] (2) The utility model also provides a painting pressing mechanism with a base and a vertical tube, and a movable rod driven by a spring is provided in the vertical tube. The movable rod is used to directly contact and press the canvas. Since the spring is retractable, the movable rod can adapt to the thickness of the canvas and has a wider adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the picture pressing mechanism of the utility model;

[0021] Figure 3 For the utility model Figure 1 A is an enlarged schematic diagram of the details.

[0022] In the figure:

[0023] 1. Flipping mechanism; 11. Support plate 1; 111. Bottom plate; 112. Clamping plate; 113. Locking bolt; 114. Inner shaft; 12. Support plate 2; 121. Sleeve; 122. Positioning bolt; 2. Pressing mechanism; 21. Base; 22. Vertical tube; 23. Spring; 24. Movable rod; 241. Pressing ball; 25. Fixing bolt; 3. Mounting plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides Figure 1-Figure 3 A flippable picture pressing device in a light box is shown in the figure, comprising a flipping mechanism 1 and a picture pressing mechanism 2.

[0026] See also Figure 1 and Figure 3 The flip mechanism 1 includes a support plate 11 and a support plate 12; one side edge of the support plate 11 has an inner shaft 114, and one side edge of the support plate 12 has two sleeves 121 movably connected to the inner shaft 114 and sleeved on both ends of the inner shaft 114; a positioning bolt 122 for fixing the sleeve 121 is installed on the sleeve 121.

[0027] See also Figure 1 and Figure 2 The painting pressing mechanism 2 includes a base 21 fixedly connected to the second support plate 12; a vertical tube 22 is fixed on the base 21, and the vertical tube 22 is movably connected to a movable rod 24; the vertical tube 22 has a built-in spring 23 for driving the movable rod 24 to move in a direction away from the second support plate 12; the movable rod 24 is used to press the canvas in the light box.

[0028] Among them, the flip mechanism 1 can be directly connected to the light box through the support plate 11, and the support plate 12 forms a hinge structure with the support plate 12 through the inner shaft 114 and the sleeve 121, so that the support plate 12 can flip around the inner shaft 114, and can be fixed by the positioning bolt 122 to form a stable opening angle, which is convenient for users to fold and open the support plate 12. In addition, the spring 23 can drive the movable rod 24 to press the canvas. Since the spring 23 can be adaptively retracted, it can fix canvases of different thicknesses, which has wider adaptability and is easy to promote.

[0029] Further, one end of the movable rod 24 is located in the vertical tube 22 and fixedly connected to a baffle; one end of the spring 23 is connected to the movable rod 24 through the baffle. The spring 23 can drive the movable rod 24 to move through the baffle.

[0030] Further, a pressure ball 241 for contacting the canvas is fixed to the other end of the movable rod 24. The pressure ball 241 is made of rubber material, thereby reducing wear and damage to the canvas.

[0031] Specifically, the support plate 11 has a bottom plate 111 and a clamping plate 112 arranged opposite to each other. The flippable picture pressing device in the light box also includes a mounting plate 3 mounted between the bottom plate 111 and the clamping plate 112. The user can adjust the horizontal position of the flip mechanism 1 and the picture pressing mechanism 2 by adjusting the bottom plate 111 and the clamping plate 112 on the mounting plate 3, thereby adjusting the contact position with the canvas. The user can install multiple flip mechanisms 1 with picture pressing mechanisms 2 to achieve multi-point fixation of the canvas and improve stability.

[0032] Furthermore, a plurality of locking bolts 113 are threadedly connected to the clamping plate 112. The ends of the locking bolts 113 abut against the mounting plate 3 to fix the mounting plate 3. The bottom plate 111 and the clamping plate 112 are slidably clamped on both sides of the mounting plate 3. The support plate 11 can be stably fixed on the mounting plate 3 by the locking bolts 113, so that the overall structure can be installed more stably and the structural strength after installation can be improved.

[0033] Regarding the installation method of the base 21, in this embodiment, the base 21 is fixedly connected to the support plate 2 12 by a plurality of fixing bolts 25 distributed in a matrix. The plurality of fixing bolts 25 can stably and conveniently fix the base 21, so that the base 21 can be stably installed.

[0034] Working principle: The utility model is a flippable picture pressing device in a light box. When in use, the user can adjust the horizontal position of the flip mechanism 1 and the picture pressing mechanism 2 by adjusting the position of the bottom plate 111 and the clamping plate 112 on the mounting plate 3, thereby adjusting the contact position with the canvas. The user can install multiple flip mechanisms 1 with picture pressing mechanisms 2 to achieve multi-point fixation of the canvas. The spring 23 can drive the movable rod 24 to press the canvas. Since the spring 23 can be adaptively retracted, it can fix canvases of different thicknesses.

[0035] Finally, it should be noted that the above 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 aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A reversible pressing device in a light box, characterized in that: include: The turning mechanism (1) comprises a first support plate (11) and a second support plate (12); one side edge of the first support plate (11) comprises an inner shaft (114); one side edge of the second support plate (12) comprises two sleeves (121) movably connected to the inner shaft (114) and sleeved on both ends of the inner shaft (114); a positioning bolt (122) for fixing the sleeve (121) is installed on the sleeve (121); The painting pressing mechanism (2) comprises a base (21) fixedly connected to the second support plate (12); a vertical tube (22) is fixed on the base (21), and the vertical tube (22) is movably connected to a movable rod (24); a spring (23) is built into the vertical tube (22) for driving the movable rod (24) to move in a direction away from the second support plate (12); and the movable rod (24) is used to press the canvas in the light box.

2. The flippable pressing device for painting in a light box according to claim 1, characterized in that: One end of the movable rod (24) is located in the vertical tube (22) and is fixedly connected to a baffle; one end of the spring (23) is connected to the movable rod (24) via the baffle.

3. The flippable pressing device for painting in a light box according to claim 1, characterized in that: The support plate (11) has a bottom plate (111) and a clamping plate (112) which are arranged opposite to each other; The flippable pressing device in the light box also includes a mounting plate (3) mounted between the bottom plate (111) and the clamping plate (112); The bottom plate (111) and the clamping plate (112) are slidably clamped on both sides of the mounting plate (3).

4. The flippable pressing device for painting in a light box according to claim 3, characterized in that: The clamping plate (112) is penetrated by a plurality of locking bolts (113) which are screwed to the clamping plate (112); The end of the locking bolt (113) abuts against the mounting plate (3) to fix the mounting plate (3).

5. The flippable pressing device for painting in a light box according to claim 1, characterized in that: The base (21) is fixedly connected to the second support plate (12) via a plurality of fixing bolts (25) distributed in a matrix.

6. The flippable pressing device for painting in a light box according to claim 2, characterized in that: A pressure ball (241) for contacting the canvas is fixed to the other end of the movable rod (24).

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