Combined advertising light box backboard

Abstract

The utility model belongs to the technical field of advertising lamp box equipment, specifically relates to a combined advertising lamp box backboard, including bottom plate, the lamp strip and fixed lid of setting in the bottom plate, form on the bottom plate lamp tank, the first side plate and second side plate that have the restriction lamp strip in the lamp tank, the first side plate forms the resistance piece on the side near the lamp strip, the first side plate and second side plate upper side have the extension, the fixed lid lower side has the close -mouthed portion with the extension cooperation, the first clamping groove is equipped with in the connecting cavity one end of bottom plate, the other side's connector has the second clamping groove with the first clamping groove cooperation, and the first clamping groove and second clamping groove are equipped with the clamping strip cooperation with it, to limit the movement of connector along the length direction of connecting cavity. The utility model can take out and put into the lamp strip from the lamp tank from the front of bottom plate, when the lamp strip is out of order, only needs to replace the lamp strip, need not to replace together with the bottom plate, not only convenient operation and save maintenance cost, the cooperation connection between bottom plate, both can be installed conveniently, and can be rolled up and be packed and transported conveniently.

Description

Technical Field

[0001] This utility model belongs to the technical field of advertising light box equipment, specifically relating to a combined advertising light box back panel. Background Technology

[0002] As a common advertising and promotional tool, light boxes are increasingly choosing LED light strips as their light source. Currently, most light boxes on the market use cold-rolled steel or aluminum plates for the back panels to mount LED light strips. Screws are directly driven into the flat plate or spring clips are used to fix the light strips. Once the light strips are installed, they cannot be removed. When a light strip malfunctions and needs replacement, the entire back panel must be replaced, increasing the maintenance cost of the light box. Furthermore, assembling these back panels is inconvenient, time-consuming, and labor-intensive. Utility Model Content

[0003] This utility model provides a modular advertising lightbox back panel to solve at least one of the above-mentioned technical problems.

[0004] The technical solution adopted by this utility model is as follows: a combined advertising light box back panel, including a base plate, a light strip disposed in the base plate, and a fixing cover, characterized in that a light groove is formed on the base plate, and a first side plate and a second side plate are provided in the light groove to restrict the light strip. The first side plate has a stop member formed on the side near the light strip. The upper side of the first side plate and the second side plate have an extension portion, and the lower side of the fixing cover has a closing portion that cooperates with the extension portion. A connector is formed on one side of the base plate, and a connecting cavity is formed on the other side. A first slot is provided at one end of the connecting cavity, and a second slot is provided on the connector to cooperate with the first slot. The first slot and the second slot are provided with locking strips to restrict the movement of the connector along the length direction of the connecting cavity.

[0005] In a preferred embodiment, the second side plate has a limiting member on the side near the light strip, the limiting member being a plurality of spring pieces distributed along the length direction of the base plate.

[0006] In a preferred embodiment, the spring is U-shaped, including a connecting portion and a deformable portion, and a plurality of movable holes are formed on the second side plate. The connecting portion extends into the movable holes to limit the position of the light strip in the light groove by the deformation of the spring.

[0007] In a preferred embodiment, the limiting members are in multiple sets, and each set of the limiting members is evenly arranged along the inner wall of the second side plate.

[0008] In a preferred embodiment, the abutment is a limiting strip extending along the length direction of the base plate.

[0009] In a preferred embodiment, the connector is configured as a cylindrical buckle, and the connecting cavity is configured as an arc-shaped groove hinged to the cylindrical buckle.

[0010] In a preferred embodiment, one end of the arc-shaped groove has a barbed end, and one end of the cylindrical buckle has a barbed protrusion that cooperates with it, so as to restrict the movement of the connector along the length direction of the connecting cavity by the cooperation of the two.

[0011] In a preferred embodiment, the fixing cover is provided with a locking post that contacts the light strip, and the locking post is provided with an internal threaded hole.

[0012] In a preferred embodiment, the base plate is provided with first openings evenly distributed along the length of the base plate, and the light strip is provided with second openings that cooperate with the first openings.

[0013] In a preferred embodiment, each side of the fixing cover is provided with a U-shaped opening.

[0014] Due to the adoption of the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0015] 1. In a preferred embodiment of this utility model, a light groove is provided on the base plate, and the first and second side plates are placed in the light groove. This makes the side of the base plate where the light strip is placed flatter, preventing the first and second side plates from snagging on workers' clothing or light strip wires during the installation of the base plate. Furthermore, the light groove, the first and second side plates act as reinforcing ribs, thereby enhancing the mechanical strength of the base plate and preventing bending or deformation. In addition, the abutments on the side plates facilitate the insertion of the light strip between the two side plates from one side, making it easy to remove and insert the light strip from the light groove. When the light strip malfunctions, it can be replaced simply by removing the strip from the side without the abutments, eliminating the need to replace the entire light panel. This not only makes operation convenient but also saves on maintenance costs. The extensions on the upper sides of the first and second side panels cooperate with the closing section on the lower side of the fixing cover, allowing the light strip between the first and second side panels to be fixed by installing the fixing cover. The connector on the base plate and the connecting cavity on the other side can cooperate to connect multiple base plates into one piece, so that multiple base plates can be combined to form a light box back panel of the corresponding size according to different light box sizes, which facilitates the quick installation of the advertising light box back panel.

[0016] Meanwhile, the first slot of the connecting cavity engages with the second slot on the connecting head via a locking strip, which can prevent the connecting head from sliding alternately along the length of the connecting cavity, thereby avoiding the movement of the two connected base plates.

[0017] 2. In a preferred embodiment of this utility model, when the limiting member on the side of the second side plate near the light strip is a plurality of U-shaped spring pieces distributed along the length of the base plate, the U-shaped spring pieces undergo elastic deformation when subjected to external force, storing elastic potential energy; when the external force disappears, the U-shaped spring pieces return to their original shape, releasing the elastic force. The cooperation between the movable hole and the U-shaped spring pieces allows the connecting part to be pulled out from the movable hole when the U-shaped spring pieces are in the extended state, and the curvature of the deformed part of the U-shaped spring pieces increases. When the light strip is inserted into the light groove, the elastic force of the U-shaped spring pieces will give the light strip a positive pressure. At this time, the deformation of the U-shaped spring pieces is compressed, the curvature of the deformed part decreases, and the deformed part gives the light strip a thrust in the opposite direction. Therefore, the friction between the U-shaped spring pieces and the light strip can be increased, reducing the sliding of the light strip relative to the light groove, thereby achieving a better anti-slip effect.

[0018] Meanwhile, multiple sets of limiting components are provided, and each set of limiting components is evenly arranged along the inner wall of the second side plate, which further increases the friction between the U-shaped spring and the light strip, thereby achieving a better anti-slip effect.

[0019] In addition, the limiting strip on the side of the first side panel near the light strip can effectively prevent the light strip from falling out of the light groove.

[0020] 3. In a preferred embodiment of this utility model, the connector is configured as a cylindrical buckle, and the connecting cavity is configured as an arc-shaped groove that is hinged to the cylindrical buckle. The bottom plates of the advertising light box back panel cooperate with each other through the cylindrical buckle and the arc-shaped groove of the light panel, so that the advertising light box back panel can be rolled up, making the advertising light box back panel easy to pack and transport.

[0021] In addition, one end of the arc-shaped groove has a barbed end, and the other end of the cylindrical buckle has a barbed protrusion that matches it. The two work together, with the barbed end hooking the barbed protrusion inside the arc-shaped groove. This restricts the movement of the cylindrical buckle along the length of the arc-shaped groove, but does not obstruct the movement of the cylindrical buckle along the circumference of the arc-shaped groove.

[0022] 4. As a preferred embodiment of this utility model, the locking post provided on the fixing cover can stop the contact with the light strip. The internal thread of the locking post can be screwed into a bolt, which, together with the first hole evenly distributed along the length of the base plate and the second hole on the light strip, further presses the light strip to prevent it from loosening.

[0023] 5. In a preferred embodiment of this utility model, a U-shaped opening is provided on the side of the fixing cover. The power cord of the advertising light box back panel passes through the U-shaped opening of the fixing cover, so that the electrical connection point between the power cord and the light strip is located below the fixing cover. The fixing cover can protect the electrical connection point and effectively prevent short circuits. Attached Figure Description

[0024] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0025] Figure 1 This is a schematic diagram of the structure of the combined advertising lightbox back panel of this utility model;

[0026] Figure 2 This is a schematic diagram of the base plate, light strip, and mounting cover;

[0027] Figure 3 A cross-sectional structural diagram of the back panel of a modular advertising lightbox;

[0028] Figure 4 This is a structural diagram of the first card slot, the second card slot, and the card strip;

[0029] Figure 5 This is a cross-sectional schematic diagram of the interaction between the limiting component and the light strip;

[0030] Figure 6 This is a schematic diagram of an enlarged cross-sectional view of the spring clip;

[0031] Figure 7 A schematic diagram of the cross-sectional structure of the barb's closing edge and its protrusion;

[0032] Figure 8 for Figure 2 Enlarged view of point A in the middle;

[0033] Figure 9 for Figure 2 Enlarged view of point B in the middle;

[0034] Figure 10 This is an enlarged structural diagram of the fixed cover;

[0035] Explanation of reference numerals in the attached figures

[0036] 1. Base plate; 110. First side plate; 111. Abutting component; 1111. Limiting strip; 120. Second side plate; 121. Limiting component; 1210. Spring piece; 1221. Connecting part; 1222. Deformation part; 1213. Movable hole; 130. Extension part; 140. Connecting head; 141. Second slot; 142. Cylindrical buckle; 1421. Barbed protrusion; 150. Connecting cavity; 151. First slot; 152. Arc-shaped slot; 1521. Barbed end; 153. Locking strip; 160. First opening;

[0037] 2. LED strip; 210. Second opening;

[0038] 3. Fixing cap; 310. Closure section; 320. Locking post; 321. Internal threaded hole; 330. U-shaped opening; Detailed Implementation

[0039] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0040] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0041] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "aspect," or "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] Example 1

[0045] like Figures 1-4As shown, a modular advertising lightbox back panel includes a base plate 1, a light strip 2 disposed within the base plate 1, and a fixing cover 3. The base plate 1 has a light groove, and within the light groove are a first side plate 110 and a second side plate 120 that restrict the light strip 2. The extension portion 130 on the upper side of the first side plate 110 and the second side plate 120 is an outwardly folded clip. The first side plate 110 has a stop member 111 on the side near the light strip 2. The light strip 2 is placed within the light groove and positioned between the stop member 111 and the second side plate 120 of the mounting groove. The fixing cover 3 has an inwardly folded clip at its lower end. The first side plate 110 of the light groove... The outwardly folded clips of the extension portion 130 on the upper side of the second side plate 120 and the inwardly folded clips of the closing portion on the lower side of the fixing cover 3 respectively engage with each other. A connector 140 is formed on one side of the base plate 1, and a connecting cavity 150 is formed on the other side, which are used to cooperate with the connector 140 and the connecting cavity 150 of the adjacent lamp plate respectively. A first slot 151 is provided at one end of the connecting cavity 150, and a second slot 141 is provided on the connector 140 to cooperate with the first slot 151. The first slot 151 and the second slot 141 are provided with locking strips 153 to restrict the movement of the connector 140 along the length direction of the connecting cavity 150.

[0046] Example 2

[0047] like Figure 5 and Figure 6 As shown, a combined advertising light box back panel, different from embodiment 1, has a spring piece 1210 with an elastic structure to effectively prevent the light strip 2 from falling out of the light groove through the deformation of the spring piece 1210.

[0048] Specifically, the second side plate 120 may have a movable hole 1213 formed on the spring piece 1210. The movable hole 1213 extends along the length of the base plate 1 on the side of the second side plate 120 near the light strip 2. The connecting part 1221 of the spring piece 1210 extends into the movable hole 1213. The spring piece 1210 has a deformable part 1222. Through the cooperation between the deformable part 1222 and the movable hole 1213, the spring piece 1210 can only move within the fixed range of the movable hole 1213. Utilizing the cooperation between the deformable part 1222 on the spring piece 1210 and the movable hole 1213, when the spring piece 1210 is in the extended state, the deformable part 1222 can pull the connecting part 1221 out of the movable hole 1213. At this time, the curvature of the deformable part 1222 reaches its maximum angle. When the LED strip 2 is inserted into the lamp groove, the LED strip 2 exerts a pushing force on the spring piece 1210 towards the bottom of the movable hole 1213. At this time, the deformation part 1222 deforms and is compressed, and the connecting part 1221 moves towards the bottom of the movable groove. Because the U-shaped spring piece 1210 is deformed and compressed, the curvature of the deformation part 1222 becomes smaller, and the deformation part 1222 exerts a pushing force in the opposite direction on the LED strip 2. Therefore, the friction between the U-shaped spring piece 1210 and the LED strip 2 can be increased, reducing the sliding of the LED strip 2 relative to the lamp groove. The deformation of the spring piece 1210 restricts the position of the LED strip 2 in the lamp groove, thereby achieving a better anti-slip effect.

[0049] Meanwhile, the limiting member 121 is set in multiple groups, and each group of limiting members 121 is evenly arranged along the inner wall of the second side plate 120. Depending on the length of the light strip 2, the restriction of the spring piece 1210 on the light strip 2 can be increased, further increasing the friction between the U-shaped spring piece 1210 and the light strip 2, thereby achieving a better anti-slip effect.

[0050] In addition, the limiting strip 1111 on the side of the first side plate 110 near the light strip 2 can effectively prevent the light strip 2 from falling out of the light groove.

[0051] Example 3

[0052] like Figure 7 As shown, a modular advertising lightbox back panel, different from embodiment 1, has a connector 140 configured as a cylindrical buckle 142, and a connecting cavity 150 configured as an arc-shaped slot 152 that can be hinged to the cylindrical buckle 142. The bottom plates 1 of the advertising lightbox back panel are connected by the cylindrical buckles 142 and the arc-shaped slots 152 on both sides of the bottom plate 1. When in use, one end of the cylindrical buckle 142 of the bottom plate 1 is inserted along the arc-shaped slot 152 of the other bottom plate 1. The cylindrical and arc-shaped design allows the advertising lightbox back panel to be rolled up after assembly, making it easy to pack and transport.

[0053] Meanwhile, one end of the arc-shaped groove 152 has a barbed opening 1521, and one end of the cylindrical buckle 142 has a barbed protrusion 1421 that cooperates with it. The barbed protrusion 1421 has a trapezoidal structure, and the barbed opening 1521 is an inverted trapezoidal structure that cooperates with the trapezoidal structure. When one end of the cylindrical buckle 142 is inserted along the arc-shaped groove 152 of another base plate 1, the narrow part of the barbed protrusion 1421 first passes through the wide part of the barbed opening 1521, and then the wide part of the barbed protrusion 1421 engages with the narrow part of the barbed opening 1521. The two cooperate with each other, which not only restricts the movement of the cylindrical buckle 142 along the length direction of the arc-shaped groove 152, but also does not block the circumferential movement of the cylindrical buckle 142 along the arc-shaped groove 152.

[0054] Example 4

[0055] like Figures 8-10 As shown, a combined advertising light box back panel, different from embodiment 1, has a locking post on the fixing cover 3 that abuts against the light strip 2. The bottom surface of the locking post abuts against the top surface of the light strip. This design can abut against the light strip 2, so that the light strip 2 is firmly locked in the light groove. The locking post 310 has an internal threaded hole 321. The internal thread of the locking post 310 can be screwed into a bolt. Together with the first hole 160 evenly distributed along the length direction of the base plate 1 and the second hole 210 on the light strip 2, the light strip 2 is further pressed tightly to prevent the light strip 2 from loosening.

[0056] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0057] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0058] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A modular advertising lightbox back panel, comprising a base plate (1), a light strip (2) disposed within the base plate (1), and a fixing cover (3), characterized in that, A light groove is formed on the base plate (1), and a first side plate (110) and a second side plate (120) are provided in the light groove to restrict the light strip (2). The first side plate (110) has a stop (111) on the side near the light strip (2). The upper sides of the first side plate (110) and the second side plate (120) have extension portions (130), and the lower side of the fixing cover (3) has a closing portion (310) that cooperates with the extension portions (130). A connector (140) is formed on one side and a connecting cavity (150) is formed on the other side. A first slot (151) is provided at one end of the connecting cavity (150). A second slot (141) that mates with the first slot (151) is provided on the connector (140). The first slot (151) and the second slot (141) are provided with locking strips (153) that mate with them to restrict the movement of the connector (140) along the length direction of the connecting cavity (150).

2. The modular advertising lightbox back panel of claim 1, wherein, The second side plate (120) has a limiting member (121) on the side near the light strip (2), the limiting member (121) being a plurality of spring pieces (1210) distributed along the length direction of the base plate (1).

3. The modular advertising light box back panel of claim 2, wherein, The spring piece (1210) is U-shaped, including a connecting part (1221) and a deformable part (1222). A plurality of movable holes (1213) are formed on the second side plate (120). The connecting part (1221) extends into the movable hole (1213) to limit the position of the light strip (2) in the light groove by the deformation of the spring piece (1210).

4. The modular advertising sign back panel of claim 3, wherein, The limiting member (121) is in multiple sets, and each set of the limiting member (121) is evenly arranged along the inner wall of the second side plate (120).

5. The modular advertising sign back panel of claim 1, wherein, The stop (111) is a limiting strip (1111) extending along the length direction of the base plate (1).

6. The modular advertising sign back panel of claim 1, wherein, The connector (140) is configured as a cylindrical buckle (142), and the connecting cavity (150) is configured as an arc-shaped groove (152) hinged to the cylindrical buckle (142).

7. The combined advertising lightbox back panel according to claim 6, characterized in that, The arc-shaped groove (152) has a barbed end (1521) at one end, and the cylindrical buckle (142) has a barbed protrusion (1421) at one end to cooperate with it, so as to restrict the movement of the connector (140) along the length direction of the connecting cavity (150) by the cooperation of the two.

8. The modular advertising sign back panel of claim 1, wherein, The fixing cover (3) is provided with a locking post (320) that is in contact with the light strip (2), and the locking post (320) is provided with an internal thread hole (321).

9. The modular advertising sign back panel of claim 1, wherein, The base plate (1) is provided with a first opening (160) evenly distributed along the length direction of the base plate (1), and the light strip (2) is provided with a second opening (210) that cooperates with the first opening (160).

10. The modular advertising sign back panel of claim 1, wherein, Each of the fixed covers has a U-shaped opening (330) on its side.

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