CN207020931U - Lamp house cloth component and lamp box - Google Patents

Abstract

The utility model embodiment, which provides a kind of lamp house cloth component and lamp box, the lamp house cloth component, includes lamp house cloth, the first holding sheet, the second holding sheet and the layer that expands with cold and contracts with heat；First holding sheet and second holding sheet are arranged at intervals to form a grasping part；The lamp house cloth and the layer that expands with cold and contracts with heat are overlapped and are connected in the grasping part.The utility model has each material layer for avoiding lamp house cloth because of the effect for separation of expanding with heat and contract with cold.

Description

Light box cloth components and light boxes

technical field

The utility model relates to the technical field of light boxes, in particular to a light box cloth assembly and a light box.

Background technique

Light box cloth is widely used in the production of outdoor advertising light boxes because of its good flexibility, uniform light transmission, long life, and easy division and installation.

At present, outdoor advertising light boxes can display business logo (logo, company text name, icon or a combination of the two) information to improve the recognition of the business. However, due to thermal expansion and contraction of the existing light box cloth, each material layer is prone to peeling off, resulting in gaps and affecting the display effect.

Utility model content

The embodiment of the utility model provides a light box cloth assembly and a light box, which can improve the effect of preventing material layer separation of the light box cloth due to thermal expansion and contraction.

The embodiment of the utility model provides a light box cloth assembly, including a light box cloth, a first clamping layer, a second clamping layer, and a cold expansion and heat shrinkable layer;

The first clamping layer and the second clamping layer are spaced apart to form a clamping space;

The light box cloth and the heat-expandable and heat-shrinkable layer are overlapped and locked in the clamping space.

The embodiment of the utility model also provides a light box, including a frame and a light box cloth assembly, the light box cloth assembly is installed on the frame, and the light box cloth assembly is the light box cloth assembly described in any one of the above.

The utility model is provided with a thermal expansion and thermal contraction layer, so that the thermal expansion and contraction of the light box cloth can offset each other with the thermal expansion and contraction layer, avoiding the phenomenon that the material layer of the light box cloth is peeled off.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present utility model more clearly, the following will briefly introduce the drawings required for the description of the embodiments. Apparently, the drawings in the following description are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative work.

Fig. 1 is a schematic diagram of the first structure of the light box provided by the embodiment of the present invention.

Fig. 2 is a second structural schematic view of the light box provided by the embodiment of the present invention.

Fig. 3 is a schematic diagram of the third structure of the light box provided by the embodiment of the present invention.

Fig. 4 is a schematic diagram of the fourth structure of the light box provided by the embodiment of the present invention.

Fig. 5 is a schematic diagram of the fifth structure of the light box provided by the embodiment of the present invention.

Fig. 6 is a schematic diagram of the sixth structure of the light box provided by the embodiment of the utility model.

Fig. 7 is a cross-sectional view of the light box cloth assembly provided by the embodiment of the present invention.

Fig. 8 is a first cross-sectional view of the light box cloth provided by the embodiment of the present invention.

Fig. 9 is a second cross-sectional view of the light box cloth provided by the embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present utility model.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", Orientation indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. Or the positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be configured in a specific orientation, and operation, and therefore cannot be construed as a limitation of the utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection, electrical connection or mutual communication; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the mutual communication of two components role relationship. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "below" a second feature may include direct contact between the first and second features, and may also include the first and second features being in direct contact with each other. The features are not in direct contact but through another feature between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

The disclosure below provides many different implementations or examples for realizing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the utility model. Furthermore, the present disclosure may repeat reference numerals and/or reference letters in different instances, such repetition is for simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, various specific process and material examples are provided herein, but one of ordinary skill in the art may recognize the use of other processes and/or the use of other materials.

The embodiment of the utility model provides a light box. The light box can be applied to large outdoor billboards, or to storefronts of merchants to deliver merchant information to users.

As shown in FIG. 1 , the light box 100 includes a light box cloth assembly 10 and a frame 20 . Wherein, the frame 20 may be made of materials such as metal, plastic or wooden boards. The outer contour of the frame 20 may be a cuboid. In some embodiments, the outer contour of the frame 20 may also be in other shapes such as a sphere.

The light box cloth assembly 10 is installed on the frame 20 . Wherein, the light box cloth assembly 10 may cover a part of the surface of the frame 20 . For example, when the frame 20 is a rectangular parallelepiped frame, the light box cloth assembly 10 may cover one surface of the frame 20 .

In some embodiments, the surface of the frame 20 covered with the light box cloth assembly 10 may also be provided with a glass layer. The glass layer can press the light box cloth assembly 10 against the surface of the frame 20 while providing protection for the light box cloth assembly 10 .

In some embodiments, as shown in FIG. 2 , the light box 100 further includes a light source 30 . The light source 30 is installed inside the frame 20 . The light source 30 may be a point light source, a surface light source and other types of light sources. The light box cloth assembly 10 has light transmittance. When the external ambient light is dark at night or during the day, the light source 30 is turned on to transmit visible light to the outside through the light box cloth assembly 10 , thereby improving the visibility of the light box 100 .

In some embodiments, the light source 30 may be a surface light source formed by a plurality of light emitting diodes. The light source 30 includes a plurality of light emitting diodes 31 spaced apart from each other. A surface light source 30 formed by a plurality of light emitting diodes can be arranged parallel to the light box cloth 10 . The light emitting surface of the light source 30 faces the light box cloth assembly 10 .

In some embodiments, as shown in FIG. 3 , the light source 30 may be a surface light source formed by a plurality of light emitting diodes. The light source 30 includes a plurality of light emitting diodes 31 spaced apart from each other. A surface light source 30 formed by a plurality of light emitting diodes may be disposed on a side wall of the light box 100 . That is, the surface light source 30 and the light box cloth assembly 10 are perpendicular to each other. The light emitting diodes 31 in the light source 30 can be arranged at a certain angle. For example, an angle of 30 degrees is formed between the light emitting diode 31 and the plane where the light source 30 is located. The light emitted by the light source 30 is directed towards the light box cloth assembly 10 . When the external ambient light is dark at night or during the day, the light source 30 is turned on to transmit visible light to the outside through the light box cloth assembly 10 , thereby improving the visibility of the light box 100 .

In some embodiments, as shown in FIG. 4 , the light source 30 may be a surface light source formed by a plurality of light emitting diodes. The light source 30 includes a plurality of light emitting diodes 31 spaced apart from each other. Wherein, the light source 30 may include a first part 301 arranged parallel to the light box cloth assembly 10 and a second part 302 arranged perpendicular to the light box cloth assembly 10 . The light-emitting surface of the first portion 301 faces the light box cloth assembly 10 . The LEDs 31 in the second portion 302 may be arranged at an angle. For example, an angle of 30 degrees is formed between the light emitting diode 31 and the plane where the second portion 302 is located. Therefore, the light emitted by the second part 302 is also directed towards the light box cloth assembly 10 .

In some embodiments, as shown in FIG. 5 , the light box 100 further includes a control circuit 40 . The control circuit 40 is installed inside the frame 20 . Wherein, the control circuit 40 is connected with the light source 30 . The control circuit 40 is used to control the light source 30 to be turned on and off. For example, the user can set the timing at which the light source 30 is turned on and off. When the time reaches the preset turn-on time, the control circuit 40 controls the light source 30 to turn on. Therefore, the light source 30 emits visible light to the outside through the light box cloth 10 , thereby improving the visibility of the light box 100 . When the time reaches the preset turn-off time, the control circuit 40 controls the light source 30 to turn off, so as to save electric energy.

In some embodiments, as shown in FIG. 6 , the light box 100 further includes an ambient light sensor 50 . An ambient light sensor 50 is installed inside the frame 20 . An ambient light sensor may also be referred to as an ambient brightness sensor. Wherein, the ambient light sensor 50 is used to detect the intensity of external ambient light.

In some embodiments, the ambient light sensor 50 is connected to the control circuit 40 to input the ambient light intensity signal detected by the ambient light sensor 50 into the control circuit 40 . Wherein, the control circuit 40 may include a comparison circuit. The comparison circuit is used for comparing the signal input by the ambient light sensor 50 with the preset signal. When the ambient light intensity value detected by the ambient light sensor 50 is less than the preset threshold value, it means that the external environment is dark, and now the control circuit 40 controls the light source 30 to turn on; when the ambient light intensity value detected by the ambient light sensor 50 is greater than or equal to the When the threshold is preset, it means that the external environment is bright, and the control circuit 40 controls the light source 30 to turn off.

Wherein, the preset threshold may be a preset ambient light intensity value. For example, the preset threshold may be 500. When the ambient light intensity value detected by the ambient light sensor 50 is less than 500, the control circuit 40 controls the light source 30 to turn on; when the ambient light intensity value detected by the ambient light sensor 50 is greater than or equal to 500, the control circuit 40 controls the light source 30 to turn off.

In some embodiments, light box 100 may interface with a background processor. Wherein, the ambient light sensor 50 and the control circuit 40 can be electrically connected to the processor. The ambient light sensor 50 sends the detected ambient brightness information to the processor. A preset threshold can be pre-stored in the processor. The preset threshold may be an ambient light intensity value. When the processor judges that the ambient light brightness value is less than the preset threshold value, it sends an opening signal to the control circuit 40, so that the control circuit 40 controls the light source 30 to turn on; when the processor judges that the ambient light brightness value is greater than or equal to the preset threshold value , send a turn-off signal to the control circuit 40, so that the control circuit 40 controls the light source 30 to turn off.

In some embodiments, when the light source 30 is turned on, the control circuit 40 is also used to control the luminous intensity of the light source 30 according to the ambient brightness value detected by the ambient light sensor 50 . For example, when the light source 30 is turned on, the control circuit 40 gradually increases the luminous intensity of the light source 30 according to the increase of the ambient brightness value.

In some embodiments, when the light source 30 includes a plurality of LEDs 31 , the control circuit 40 controls the number of lighted LEDs in the light source 30 according to the ambient brightness value. For example, when the light source 30 includes 200 light-emitting diodes, the control circuit 40 can control the number of light-emitting diodes according to the correspondence shown in Table 1:

Table 1

Referring to FIG. 7 , FIG. 7 is a cross-sectional view of the light box cloth assembly 10 provided by the embodiment of the present invention. Wherein, the light box cloth assembly 10 includes a light box cloth 10a, a first clamping layer 10b, a second clamping layer 10c, a thermal expansion and thermal contraction layer 10d and an elastic connection structure 10e.

Wherein, the first clamping layer 10b and the second clamping layer 10c are arranged at intervals to form a clamping space, one end of the elastic connecting structure 10e is connected to the first clamping layer 10b, and the other end of the elastic connecting structure 10e is connected to the second clamping layer. The holding layer 10c is connected. The light box cloth 10a and the heat-expandable and heat-shrinkable layer 10d are overlapped and locked in the clamping space.

The free length of the elastic connection structure 10e along the direction perpendicular to the clamping surface of the first clamping layer 10b is less than the total thickness of the light box cloth 10a and the thermal expansion and heat shrinkable layer 10d; so that the first clamping layer 10b and the light box cloth One side of the second clamping layer 10a elastically abuts against one side of the thermal expansion and heat shrinkable layer 10d.

In some embodiments, the thermal expansion and thermal contraction layer 10d includes metal antimony and/or metal bismuth.

In some embodiments, the elastic connection structure 10e may be made of rubber material.

Please continue to refer to FIG. 7 , the light box fabric 10 a includes a film layer 11 , a reflective layer 12 , a substrate layer 13 and a fabric layer 14 . The thin film layer 11 , reflective layer 12 , substrate layer 13 and fabric layer 14 are stacked in sequence.

Wherein, the film layer 11 is a film that can pass visible light. The film layer 11 can be made of polyethylene, polypropylene, polyvinyl chloride, polystyrene or resin. The thin film layer 11 covers the reflective layer 12 . The thin film layer 11 can provide protection for the reflective layer 12 . For example, the thin film layer 11 can provide a dustproof effect for the reflective layer 12 , and the thin film layer 11 can isolate the reflective layer 12 from air so that the reflective layer 12 has an anti-corrosion function. In some embodiments, film layer 11 may be a transparent film.

In some embodiments, toner may be added to the film layer 11 to make the film layer 11 appear green or blue. Therefore, the overall color of the light box cloth 10a also appears to be the same color as the film layer 11 .

The reflective layer 12 can transmit the visible light emitted by the light source 30 inside the light box 100 . The material of the reflective layer 12 includes metal. The reflective layer 12 may be disposed on the substrate layer 13 by vacuum evaporation or vacuum magnetron sputtering, so that the reflective layer 12 has a reflective effect on visible light. When visible light is reflected on the reflective layer 12, the surface of the light box cloth 10a at least exhibits metallic luster. Metallic luster refers to the luster reflected by the surface of the metal after polishing. In some embodiments, the material of the reflective layer 12 includes metal with high reflectivity to visible light. Wherein, the reflective layer 12 may include one or more of chromium, aluminum, silver, and nickel. For example, reflective layer 12 may be an alloy of aluminum and silver. In some embodiments, non-metallic materials can also be added to the reflective layer 12 .

The base layer 13 can also transmit visible light. The substrate layer 13 provides a base for the reflective layer 12 to adhere to. In some embodiments, the material of the substrate layer 13 is polyvinyl chloride. In some embodiments, toner may be added to the substrate layer 13 so that the substrate layer 13 exhibits the same color as the film layer 11 . When the film layer 11 is a transparent film, the overall color of the light box cloth 10 a is the same color as that of the base material layer 13 .

The fabric layer 14 can transmit visible light. The material of the cloth layer 14 can be materials such as fiber, polyester (polyester), polyamide (nylon, also known as nylon), polyacrylonitrile (acrylic), polyurethane (spandex).

Since the reflective layer 12 is provided in the light box cloth 10a, the light box cloth 10a can reflect external light, so that the surface of the light box cloth 10a can present a metallic luster. When viewed from different angles outside the light box cloth 10a, the light box cloth 10a can present a gradient color effect.

In some embodiments, the film layer 11 , the reflective layer 12 and the substrate layer 13 can be irreversibly bonded by an adhesive to form a light-transmitting film layer 15 . Wherein, the irreversible method means that after the light-transmitting film layer 15 is formed, the thin film layer 11 , the reflective layer 12 and the substrate layer 13 cannot be separated again.

In some embodiments, as shown in FIG. 8 , an adhesive layer 16 is disposed between the film layer 11 and the reflective layer 12 . The film layer 11 and the reflective layer 12 are bonded together by an adhesive layer 16 . Wherein, the film layer 11 , the adhesive layer 16 , the reflective layer 12 and the substrate layer 13 are bonded together to form the transparent film layer 15 .

In some embodiments, as shown in FIG. 9 , a pressure-sensitive adhesive 17 is disposed between the transparent film layer 15 and the cloth layer 14 . The light-transmitting film layer 15 and the fabric layer 14 are bonded to each other through the pressure-sensitive adhesive 17 .

The light box cloth and the light box provided by the embodiment of the utility model are introduced above in detail. In this paper, specific examples are used to illustrate the principle and implementation of the utility model. The description of the above embodiment is only used to help understand the utility model. At the same time, for those skilled in the art, according to the idea of the utility model, there will be changes in the specific implementation and application scope. In summary, the contents of this specification should not be construed as limiting the utility model.

Claims (20)

1. A light box cloth assembly, characterized in that it comprises a light box cloth, a first clamping layer, a second clamping layer, and a thermal expansion and thermal contraction layer; The first clamping layer and the second clamping layer are spaced apart to form a clamping space; The light box cloth and the heat-expandable and heat-shrinkable layer are overlapped and locked in the clamping space. 2. The light box cloth assembly according to claim 1, further comprising an elastic connection structure, one end of the elastic connection structure is connected to the first clamping layer, and the other end of the elastic connection structure is connected to the first clamping layer. The second clamping layer is connected; The free length of the elastic connecting structure along the direction perpendicular to the first clamping layer is smaller than the total thickness of the light box cloth and the thermal expansion and thermal contraction layer. 3 . The light box fabric assembly according to claim 1 , wherein the thermal expansion and thermal contraction layer comprises metal antimony and/or metal bismuth. 4. The light box cloth assembly according to claim 1, wherein the light box cloth comprises a reflective layer, a base material layer and a cloth layer, and the reflective layer, the base material layer and the cloth layer are stacked in sequence, and the reflective The material of the layer includes metal, and the cloth layer has light transmission. 5 . The light box cloth assembly according to claim 4 , wherein the reflective layer is made of at least one of chromium, aluminum, silver and nickel. 6. The light box cloth assembly according to claim 5, wherein the material of the base material layer is polyvinyl chloride. 7. The light box fabric assembly according to any one of claims 4 to 6, wherein the light box fabric further comprises a film layer, and the film layer is arranged on the side of the reflective layer away from the fabric layer . 8. The light box cloth assembly according to claim 7, wherein an adhesive layer is arranged between the film layer and the reflection layer. 9 . The light box fabric assembly according to claim 7 , wherein the film layer, the reflective layer and the substrate layer are bonded together to form a light-transmitting film layer. 10 . The light box cloth assembly according to claim 9 , wherein a pressure-sensitive adhesive is disposed between the transparent film layer and the cloth layer. 11 . 11. The light box cloth assembly according to any one of claims 4 to 6, wherein the reflective layer is disposed on the base material layer by vacuum evaporation or vacuum magnetron sputtering. 12. A light box, characterized in that it comprises a frame and a light box cloth assembly, the light box cloth assembly is installed on the frame, and the light box cloth assembly is the light box cloth assembly according to any one of claims 1 to 11 . 13. The light box of claim 12, further comprising a light source mounted inside the frame. 14. The light box according to claim 13, wherein the light source is a surface light source, and the light emitting surface of the light source faces the light box cloth. 15. The light box of claim 14, wherein the light source comprises a plurality of light emitting diodes. 16. The light box according to claim 15, further comprising a control circuit, the control circuit is installed inside the frame, the control circuit is connected to the light source, and the control circuit is used to control the Turning the light source on and off. 17. The light box of claim 16, further comprising an ambient light sensor mounted inside the frame. 18. The light box according to claim 17, wherein the ambient light sensor is connected to the control circuit, and the control circuit turns on the A light source, the control circuit turns off the light source when the ambient light sensor detects that the ambient brightness value is greater than or equal to the preset threshold. 19. The light box according to claim 18, wherein the control circuit is further configured to adjust the luminous intensity of the light source according to the ambient brightness value detected by the ambient light sensor when the light source is turned on. 20. The light box according to claim 19, wherein the control circuit is used to control the light emitting diode inside the light source according to the ambient brightness value detected by the ambient light sensor when the light source is turned on quantity.