Corner joint and lamp box thereof

Abstract

According to the corner joint and the lamp box thereof, when the lamp box is in a display state, the first side rod and the second side rod are arranged at an angle of 180 degrees under the action of the corner joint; the third side rod and the fourth side rod are arranged at an angle of 180 degrees; when the lamp box is in a storage state, under the action of the corner joints, the first side rod and the second side rod are bent inwards, the third side rod and the fourth side rod are bent inwards, the included angle between the first side rod and the second side rod is 0 degree, the included angle between the third side rod and the fourth side rod is 0 degree, the bottom rod and the top rod are close to each other, at the moment, the overall occupied area of the lamp box is reduced, and the occupied area of the lamp box is reduced. And the lamp box is convenient to store and transport.

Description

Technical Field

[0001] The utility model relates to the field of advertising display, in particular to a corner joint and a light box thereof. Background Art

[0002] The light box has a frame structure, with a picture installed on the front or rear side of the frame, and LED lights installed inside the frame for illuminating and displaying the picture.

[0003] Conventional light boxes are detachable. When transporting the light box, it is necessary to disassemble the frame and the picture, and then disassemble and transport the frame.

[0004] When reinstalling the light box, it is necessary to reinstall the frame and the picture, which is time-consuming and laborious.

[0005] In summary, how to achieve the storage of the light box frame has become an urgent problem for researchers in this field. Content of the Utility Model

[0006] The technical problem to be solved by the utility model is: how to achieve the storage of the light box frame.

[0007] To solve the above technical problem, the technical solution adopted by the utility model is:

[0008] The utility model discloses a light box, including: a bottom rod arranged horizontally; a top rod arranged horizontally; a first side rod and a second side rod arranged vertically, the first side rod and the second side rod are connected by the corner joint; a third side rod and a fourth side rod arranged vertically, the third side rod and the fourth side rod are connected by the corner joint; the first side rod and the top rod are connected by a first hinge; the second side rod and the bottom rod are connected by a second hinge; the third side rod and the top rod are connected by a second hinge; the fourth side rod and the bottom rod are connected by a first hinge. In this solution, the first side rod, the second side rod, the third side rod, the fourth side rod, the bottom rod, and the top rod form a frame structure.

[0009] When the light box is in the display state, under the action of the corner joint, the first side rod and the second side rod are arranged at 180°; the third side rod and the fourth side rod are arranged at 180°.

[0010] When the light box is in the storage state, under the action of the corner joint, the first side rod and the second side rod are bent inward, the third side rod and the fourth side rod are bent inward, the included angle between the first side rod and the second side rod is 0°, the included angle between the third side rod and the fourth side rod is 0°, the bottom rod and the top rod are close to each other, and at this time, the overall floor area of the light box is reduced, which is convenient for the storage and transportation of the light box.

[0011] To achieve the integrated storage of the screen and the light box frame, in the present utility model, the bottom rod and the top rod are provided with first cloth-embedding grooves on their sides along the length direction; the first side rod, the second side rod, the third side rod, and the fourth side rod are provided with second cloth-embedding grooves on their sides along the length direction; the groove width of the first cloth-embedding groove is smaller than the groove width of the second cloth-embedding groove;

[0012] An embedding strip is provided at the edge of the screen. When the embedding strip is engaged with the first cloth-embedding groove, it prevents the left-right sliding when the top and bottom edges of the screen are engaged with the top rod and the bottom rod. When the embedding strip is engaged with the second cloth-embedding groove, it enables smooth sliding when the side edges of the screen are engaged with the first side rod, the second side rod, the third side rod, and the fourth side rod.

[0013] During storage, to prevent interference when the first side rod, the second side rod, the third side rod, and the fourth side rod are bent inward, in the present utility model, the first hinge member is provided with an extension section along the height direction; the length of the extension section is the sum of the thicknesses of the first side rod and the second side rod or the sum of the thicknesses of the third side rod and the fourth side rod;

[0014] The two first hinge members are arranged diagonally, and the two second hinge members are arranged diagonally. The first hinge member has an additional extension section compared to the second hinge member, and the height of the extension section matches the sum of the thicknesses of the horizontally arranged first side rod and the second side rod or the sum of the thicknesses of the horizontally arranged third side rod and the fourth side rod;

[0015] In other words, when the light box is in the storage state, the top rod, the third side rod, the fourth side rod, the first side rod, the second side rod, and the bottom rod are arranged in sequence from top to bottom.

[0016] To illustrate the specific structure of the corner joint, in the present utility model, the corner joint includes: a body; two rotating members respectively hinged to the top and bottom of the body; a pressing plate arranged on the back of the body through an elastic component and adapted to fit against the back of the body under the drive of the elastic component; an insertion groove arranged on the back of the rotating member; and a clamping member arranged at the front of the pressing plate and adapted to be clamped and engaged with the insertion groove;

[0017] The rotating member can be inserted into the card slots at the ends of the first side rod, the second side rod, the third side rod, and the fourth side rod to achieve insertion connection;

[0018] When the light box is in the display state, the insertion groove and the clamping member are engaged. At this time, the two rotating members are in a straight state, and the pressing plate always fits against the body under the action of the elastic component, thus preventing the separation of the insertion groove and the clamping member;

[0019] When the light box is in the storage state, the pressing plate is separated from the body. At this time, the insertion groove and the clamping member are separated, and the two rotating members are flipped.

[0020] To illustrate the specific structure of the elastic component, the elastic component of the present utility model includes: a stroke groove opened at the front part of the body; a rod body placed in the stroke groove, one end of which passes through the body and is connected to the pressing plate, and the other end is connected to a limiting part; a spring, one end of which abuts against the limiting part, and the other end abuts against the bottom of the stroke groove;

[0021] The spring acts on the limiting part and the stroke groove, so that the pressing plate can fit the body. When it is necessary to separate the pressing plate and the body, press the limiting part located in the stroke groove to separate the pressing plate and the body. At this time, the insertion groove and the clamping part can be separated, and the rotating part can rotate relative to the body.

[0022] The beneficial effects of the present utility model: The present utility model is a corner joint and its light box. When the light box is in the display state, under the action of the corner joint, the first side rod and the second side rod are arranged at 180°; the third side rod and the fourth side rod are arranged at 180°. When the light box is in the storage state, under the action of the corner joint, the first side rod and the second side rod are bent inward, the third side rod and the fourth side rod are bent inward, the included angle between the first side rod and the second side rod is 0°, the included angle between the third side rod and the fourth side rod is 0°, and the bottom rod and the top rod are close to each other. At this time, the overall floor area of the light box is reduced, which is convenient for the storage and transportation of the light box. Description of the Drawings

[0023] The present utility model will be further described below with reference to the drawings and embodiments.

[0024] Figure 1 is a schematic diagram of the unfolded structure of the light box;

[0025] Figure 2 is a schematic diagram of the semi-folded structure of the light box;

[0026] Figure 3 is a schematic diagram of the folded structure of the light box;

[0027] Figure 4 is Figure 1 an enlarged view of A;

[0028] Figure 5 is a schematic diagram of the structure of the corner joint;

[0029] Figure 6 is a cross-sectional view of the corner joint;

[0030] Figure 7 is an exploded view of the corner joint;

[0031] Figure 8 is an exploded view of the corner joint from another perspective;

[0032] In the figure: 1 - first side rod, 2 - second side rod, 3 - third side rod, 4 - fourth side rod, 5 - top rod, 51 - first cloth - embedding groove, 52 - second cloth - embedding groove, 6 - bottom rod, 7 - first hinge, 71 - extension section, 8 - second hinge, 9 - 10 - corner joint, 11 - body, 12 - rotating part, 13 - pressing plate, 14 - insertion groove, 15 - clamping part, 16 - stroke groove, 17 - rod body, 18 - limiting part, 19 - spring. Detailed implementation mode

[0033] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic way, so they only show the components related to the present utility model.

[0034] As Figures 1-3 shown, the present utility model discloses a light box, comprising: a horizontally - arranged bottom rod 6; a horizontally - arranged top rod 5; a first side rod 1 and a second side rod 2 arranged vertically, and the first side rod 1 and the second side rod 2 are connected by a corner joint 10; a third side rod 3 and a fourth side rod 4 arranged vertically, and the third side rod 3 and the fourth side rod 4 are connected by a corner joint 10; the first side rod 1 and the top rod 5 are connected by a first hinge 7; the second side rod 2 and the bottom rod 6 are connected by a second hinge 8; the third side rod 3 and the top rod 5 are connected by a second hinge 8; the fourth side rod 4 and the bottom rod 6 are connected by a first hinge 7.

[0035] In this solution, the first side rod 1, the second side rod 2, the third side rod 3, the fourth side rod 4, the bottom rod 6, and the top rod 5 form a frame structure;

[0036] As Figure 1 shown, when the light box is in the display state, under the action of the corner joint 10, the first side rod 1 and the second side rod 2 are arranged at 180°; the third side rod 3 and the fourth side rod 4 are arranged at 180°.

[0037] As Figure 2 shown, when the light box is in the storage state, under the action of the corner joint 10, the first side rod 1 and the second side rod 2 are bent inward, the third side rod 3 and the fourth side rod 4 are bent inward, the included angle between the first side rod 1 and the second side rod 2 is 0°, the included angle between the third side rod 3 and the fourth side rod 4 is 0°, the bottom rod 6 and the top rod 5 are close to each other. At this time, the overall floor area of the light box is reduced, which is convenient for the storage and transportation of the light box.

[0038] As Figure 4As shown, in order to achieve the integrated storage of the screen and the light box frame, the present utility model uses a bottom rod 6 and a top rod 5 with a first cloth-embedding groove 51 formed on the side along its length direction; a first side rod 1 and a second side rod 2 with a second cloth-embedding groove 52 formed on the side along its length direction; the groove width of the first cloth-embedding groove 51 is smaller than that of the second cloth-embedding groove 52;

[0039] An embedding strip is provided at the edge of the screen. When the embedding strip is engaged with the first cloth-embedding groove 51, it prevents the left and right sliding of the top and bottom edges of the screen when they are engaged with the top rod 5 and the bottom rod 6. When the embedding strip is engaged with the second cloth-embedding groove 52, it enables the smooth sliding of the side edges of the screen when they are engaged with the first side rod 1, the second side rod 2, the third side rod 3, and the fourth side rod 4.

[0040] As Figure 3 , 4 shown, in order to prevent interference when the first side rod 1, the second side rod 2, the third side rod 3, and the fourth side rod 4 are bent inward during storage, the present utility model uses a first hinge member 7 provided with an extension section 71 along the height direction; the length of the extension section 71 is the sum of the thicknesses of the first side rod 1 and the second side rod 2 or the sum of the thicknesses of the third side rod 3 and the fourth side rod 4;

[0041] The two first hinge members 7 are arranged diagonally, and the two second hinge members 8 are arranged diagonally. The first hinge member 7 has an additional extension section 71 compared with the second hinge member 8, and the height of the extension section 71 matches the sum of the thicknesses of the horizontally arranged first side rod 1 and the second side rod 2 or the sum of the thicknesses of the horizontally arranged third side rod 3 and the fourth side rod 4;

[0042] In other words, when the light box is in the storage state, the top rod 5, the third side rod 3, the fourth side rod 4, the first side rod 1, the second side rod 2, and the bottom rod 6 are arranged in sequence from top to bottom.

[0043] As Figures 5-8 shown, in order to illustrate the specific structure of the corner joint, the present utility model uses a corner joint 10 including: a body 11; two rotating members 12, which are respectively hinged to the top and bottom of the body 11; a pressing plate 13, which is arranged on the back of the body 11 through an elastic component and fits against the back of the body 11 under the drive of the elastic component; an insertion groove 14, which is arranged on the back of the rotating member 12; a clamping member 15, which is arranged on the front of the pressing plate 13 and is adapted to be clamped and engaged with the insertion groove 14;

[0044] The rotating member 14 can be inserted into the clamping grooves at the ends of the first side rod 1, the second side rod 2, the third side rod 3, and the fourth side rod 4 to achieve insertion connection;

[0045] When the light box is in the display state, the insertion groove 14 is engaged with the clamping member 15. At this time, the two rotating members 12 are in a straight line state, and the pressing plate 13 always fits against the body 11 under the action of the elastic component, thus preventing the separation of the insertion groove 14 and the clamping member 15;

[0046] When the light box is in the storage state, the pressing plate 13 is separated from the main body 11. At this time, the insertion groove 14 is disengaged from the engaging member 15, and the two rotating members 12 are turned over.

[0047] As Figures 5-8 shown, in order to illustrate the specific structure of the elastic component, the elastic component of the present utility model includes: a stroke groove 16 opened in the front part of the main body 11; a rod body 17 placed in the stroke groove 16, one end of which passes through the main body 11 and is connected to the pressing plate 13, and the other end is connected to a limiting portion 18; a spring 19, one end of which abuts against the limiting portion 18, and the other end abuts against the bottom of the stroke groove 16;

[0048] The spring 19 acts on the limiting portion 18 and the stroke groove 16, so that the pressing plate 13 can be attached to the main body 11. When it is necessary to separate the pressing plate 13 and the main body 11, press the limiting portion 18 located in the stroke groove 16 to separate the pressing plate 13 from the main body 11. At this time, the insertion groove 14 can be disengaged from the engaging member 15, and at this time, the rotating member 12 can rotate relative to the main body 11.

[0049] Taking the above ideal embodiment based on the present utility model as an inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A corner joint, characterized in that, Comprising: A body; Two rotating members respectively hinged to the top and bottom of the body; A pressing plate disposed on the back of the body through an elastic component and adapted to fit against the back of the body under the drive of the elastic component; An insertion groove disposed on the back of the rotating member; A clamping member disposed at the front of the pressing plate and adapted to be clamped and cooperated with the insertion groove.

2. The angular joint according to claim 1, wherein The elastic component includes: A stroke groove opened at the front of the body; A rod body disposed in the stroke groove, one end of which passes through the body and is connected to the pressing plate, and the other end of which is connected to a limiting portion; A spring, one end of which abuts against the limiting portion and the other end of which abuts against the bottom of the stroke groove.

3. A light box, comprising a corner joint according to any one of claims 1-2, characterized in that, Further comprising: A bottom rod disposed horizontally; A top rod disposed horizontally; A first side rod and a second side rod disposed vertically, the first side rod and the second side rod being connected by the corner joint; A third side rod and a fourth side rod disposed vertically, the third side rod and the fourth side rod being connected by the corner joint; The first side rod and the top rod are connected by a first hinge member; The second side rod and the bottom rod are connected by a second hinge member; The third side rod and the top rod are connected by a second hinge member; The fourth side rod and the bottom rod are connected by a first hinge member.

4. A light box according to claim 3, characterized in that, First embedding grooves are opened on the sides of the bottom rod and the top rod along their length directions; Second embedding grooves are opened on the sides of the first side rod, the second side rod, the third side rod and the fourth side rod along their length directions; The width of the first embedding groove is smaller than the width of the second embedding groove.

5. A light box according to claim 3, wherein The first hinge member is provided with an extension section in the height direction; The length of the extension section is the sum of the thicknesses of the first side rod and the second side rod or the sum of the thicknesses of the third side rod and the fourth side rod.

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