Lamp box capable of replacing LED (light-emitting diode) lamp strip by blind insertion

Abstract

The utility model provides a light box capable of blind insertion and replacement of LED light bars, which comprises a box body, a diffusion plate, connecting supports, a fixing plate and the LED light bars, the diffusion plate is arranged in the box body, two ends of the fixing plate are respectively connected with the box body through one connecting support, the fixing plate is arranged at an installation port of the box body, and the LED light bars are arranged on the fixing plate. The connecting support comprises a first rotating shaft, a first connecting plate, a second connecting plate and a telescopic part, the telescopic part is connected between the first connecting plate and the second connecting plate, the first connecting plate is rotationally connected around the first rotating shaft, the second connecting plate is fixedly connected with the fixing plate, and the telescopic direction of the telescopic part is perpendicular to the axial direction of the first rotating shaft. According to the lamp box capable of replacing the LED lamp strip in the blind insertion mode, the fixing plate can move to extend out of the box body or retract into the box body through the telescopic piece, and meanwhile the fixing plate can rotate around the first rotating shaft, so that the LED lamp strip on the fixing plate faces the direction of an operator, and the LED lamp strip is very convenient to maintain and replace.

Description

Technical Field

[0001] The utility model relates to the field of light boxes, in particular to a light box capable of blindly inserting and replacing LED light strips. Background Art

[0002] As the demand for LED lighting and outdoor lighting continues to grow, the frequency and power of LED light strips are also increasing. This increases the risk of LED light strip damage, causing lighting equipment and advertising poster boxes that use multiple LED light strips to malfunction. Even repairs and replacements require professionals to disassemble the entire product for repair and replacement, which is very inconvenient and costly.

[0003] Therefore, it is necessary to provide a light box that can blindly replace LED light strips to solve the above technical problems. Utility Model Content

[0004] The utility model provides a light box with blindly pluggable LED light strips to solve the problems in the prior art that light boxes are very inconvenient to repair and have high repair costs.

[0005] In order to solve the above technical problems, the technical solution of the present invention is: a light box that can blindly replace LED light strips, comprising: a box body, a diffuser plate, a connecting bracket, a fixing plate, a transparent plate, a back plate, a diffuser plate, and an LED light strip, wherein the transparent plate and the back plate are respectively provided on opposite sides of the box body, the diffuser plate is provided in the box body, a mounting opening is provided on one side of the box body located between the transparent plate and the back plate, both ends of the fixing plate are respectively connected to the inner wall of the box body through one of the connecting brackets, the fixing plate is located at the mounting opening, and the LED light strip is provided on the fixing plate;

[0006] The connecting terminal is used to electrically connect the LED light strip and the power supply. The connecting terminal is provided with a power connection spring, and the power connection spring includes a positive power connection spring and two negative power connection springs respectively located on both sides of the positive power connection spring. A positive power connection pin and two negative power connection pins are provided at both ends of the LED light strip. The two negative power connection pins are symmetrically arranged on both sides of the positive power connection pin. The positive power connection spring is electrically connected to the positive power connection pin, and the two negative power connection springs are electrically connected to the two negative power connection pins one by one.

[0007] In the present invention, the power connecting spring includes an elastic piece, a connecting piece, a first curved piece and a second curved piece. The connecting piece is connected to one side of the connecting terminal. The first curved piece is connected between the elastic piece and the connecting piece. The first curved piece is bent and extended in a direction away from the connecting terminal. The second curved piece is connected to one end of the elastic piece away from the first curved piece. The side of the second curved piece away from the connecting piece is an outer convex surface for electrically connecting to the LED light strip.

[0008] Among them, the light box that can blindly replace the LED light strip also includes a limit block, the connecting terminal and the limit block are stacked on the fixed plate, the limit block is located between the connecting terminal and the fixed plate, one end of the connecting terminal protrudes from the limit block, the power connection spring is located at the end of the connecting terminal protruding from the limit block, and the end face of the LED light strip is in contact with the limit block.

[0009] In the present utility model, the connecting bracket includes a first rotating shaft, a first connecting plate, a second connecting plate, and a telescopic member, the first rotating shaft is fixedly connected to the inner wall of the box body, the telescopic member is connected between the first connecting plate and the second connecting plate, the first connecting plate is rotatably connected around the first rotating shaft, the second connecting plate is fixedly connected to the fixed plate, the axial direction of the first rotating shaft is consistent with the extension direction of the LED light strip, and the telescopic direction of the telescopic member is perpendicular to the axial direction of the first rotating shaft;

[0010] The track of the fixed plate rotating around the first rotating shaft includes a light supply position and a mounting position, and the track of the fixed plate extending and retracting along with the retractable member includes an inward retraction position and an extended position;

[0011] When the fixing plate is located at the light-supply position and the retracted position at the same time, the LED light strip is located inside the box and shines light in the direction of the diffusion plate; when the fixing plate is located at the installation position and the extended position at the same time, the LED light strip extends out of the installation opening and faces the external space of the installation opening.

[0012] In which, the connecting bracket also includes a spring, an elastic gasket, and a nut member. The spring and the elastic gasket are sleeved on the first rotating shaft. The nut member is threadedly connected to the first rotating shaft. The nut members are provided on both sides of the first connecting plate. The elastic gasket is provided between the nut member and the first connecting plate, and between the nut member and the spring. The spring is compressed and arranged between the inner wall of the box and the elastic gasket.

[0013] Furthermore, the telescopic part includes a first hinge plate and a second hinge plate, the first hinge plate and the second hinge plate form a damped rotation connection around the second rotating axis, the end of the first hinge plate away from the second hinge plate forms a damped rotation connection with the first connecting plate around the third rotating axis, the end of the second hinge plate away from the first hinge plate forms a damped rotation connection with the second connecting plate around the fourth rotating axis, the second rotating axis, the third rotating axis, and the fourth rotating axis are parallel, and the second rotating axis is perpendicular to the first rotating axis.

[0014] In addition, the first connecting plate includes a first plate body and a second plate body connected to form an L-shaped structure, the first plate body is rotatably connected to the first rotating shaft, the second plate body is connected to the first hinge plate, and the second connecting plate is provided with a folding angle of 165°-175°, and the convex side of the folding angle is close to the fixed plate.

[0015] In the present invention, the box body includes frames and plugs, the four frames are connected by the plugs to form a frame structure, and the back plate and the transparent plate are respectively encapsulated and arranged on the openings on both sides of the frame structure.

[0016] Wherein, the mounting port is arranged on one of the frame, and a buckle groove is arranged on the outer surface of the frame where the mounting port is located, and the buckle groove is connected to the mounting port. When the fixing plate is installed in the mounting port, the end surface of the fixing plate is exposed in the buckle groove.

[0017] In the present invention, a positioning strip for positioning the LED light strip is provided on the fixing plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the fixing plate of the light box of the present invention that can blindly replace the LED light strip can be extended outside the box or retracted into the box through the telescopic part, and at the same time the fixing plate can be rotated around the first rotating axis so that the LED light strip on the fixing plate faces the direction of the operator, which makes it very convenient to repair and replace the LED light strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. The drawings described below are only drawings corresponding to some embodiments of the present invention.

[0020] Figure 1 This is one of the exploded structural diagrams of the light box of the utility model that can blindly replace LED light strips.

[0021] Figure 2 This is the second exploded structural diagram of the light box of the utility model that can blindly replace the LED light strip.

[0022] Figure 3 This is a cross-sectional view of the light box of the utility model that can blindly replace the LED light strip.

[0023] Figure 4 for Figure 3 A magnified view of the local structure at point X in the middle.

[0024] Figure 5 This is a schematic structural diagram of the connection terminals of the utility model for facilitating quick replacement of light strips.

[0025] Figure 6 for Figure 5 Bottom view of the connecting terminal.

[0026] Figure 7 This is a schematic diagram of the partial structure of the LED light bar of the present invention, which is convenient for quick replacement of the light bar. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0028] Directional terms mentioned in this invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "side", "top" and "bottom", are only used with reference to the directions of the drawings. The directional terms used are used to illustrate and understand the invention, and are not intended to limit the invention.

[0029] The terms "first" and "second" in the present invention are used for descriptive purposes only and should not be understood as indicating or implying relative importance, nor as limiting the order of precedence.

[0030] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, connection can be a detachable connection or a connection of an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be internal communication between two components or an interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0031] In the prior art, when the LED light strip of a light box is damaged and needs to be repaired or replaced, professionals need to disassemble the entire product for repair and replacement, which is very inconvenient and has high repair costs.

[0032] The following is a preferred embodiment of a light box that can blindly replace LED light strips, provided by the present invention, which can solve the above technical problems.

[0033] Please refer to Figure 1 、 Figure 2 as well as Figure 3 In the figures, units with similar structures are represented by the same reference numerals.

[0034] The utility model provides a light box capable of blindly inserting and replacing LED light strips, comprising: a box body 1, a diffuser plate 13, a connecting bracket 2, a fixing plate 3, and an LED light strip 4. One side of the box body 1 is a light outlet, and a mounting opening is provided on a side of the box body 1 adjacent to the light outlet. The diffuser plate 13 is disposed within the box body 1 and seals the light outlet. Both ends of the fixing plate 3 are connected to the inner wall of the box body 1 via a connecting bracket 2. The fixing plate 3 is located at the mounting opening, and the LED light strip 4 is disposed on the fixing plate 3.

[0035] Please refer to Figure 4 The connecting bracket 2 includes a first rotating shaft 21, a first connecting plate 22, a second connecting plate 23, and a telescopic member. The first rotating shaft 21 is fixedly connected to the inner wall of the box body 1. The telescopic member is connected between the first connecting plate 22 and the second connecting plate 23. The first connecting plate 22 is rotatably connected around the first rotating shaft 21. The second connecting plate 23 is fixedly connected to the fixed plate 3. The axial direction of the first rotating shaft 21 is consistent with the extension direction of the LED light strip 4. The telescopic direction of the telescopic member is perpendicular to the axial direction of the first rotating shaft 21.

[0036] The track of the fixed plate 3 rotating around the first rotating shaft 21 includes a light-supplying position and a mounting position, and the track of the fixed plate 3 extending and retracting along with the retractable member includes a retracting position and an extending position.

[0037] When the fixing plate 3 is in the light-supplying position and the retracted position, the LED light strip 4 is located inside the housing 1 and shines light toward the diffuser plate 13. In other words, the LED light strip 4 is encapsulated inside the housing 1 and can diffuse light through the diffuser plate 13. When the fixing plate 3 is in the mounting position and the extended position, the LED light strip 4 extends beyond the mounting opening and faces the space outside the mounting opening. In other words, the LED light strip 4 can now face the operator, making it very convenient for the operator to repair or replace the LED light strip.

[0038] Please refer to Figure 4In this embodiment, the connecting bracket 2 also includes a spring 29, an elastic gasket 2A (the elastic gasket 2A can be made of rubber or plastic), and a nut 2B. The spring 29 and the elastic gasket 2A are sleeved on the first rotating shaft 21. The nut 2B is threadedly connected to the first rotating shaft 21. Nuts 2B are provided on both sides of the first connecting plate 22. Elastic gaskets 2A are provided between the nut 2B and the first connecting plate 22, and between the nut 2B and the spring 29. The spring 29 is compressed and arranged between the inner wall of the box and the elastic gasket 2A.

[0039] In this way, the spring 29 squeezes the elastic gasket 2A and transmits the elastic force to the nut 2B, generating friction between them, so that when the first connecting plate 22 rotates to the set position, it can be maintained in the set rotation position by the friction, making the position of the fixed plate 3 more stable.

[0040] Among them, the first rotating shaft 21 can be directly connected to the inner wall of the box body, or the first rotating shaft 21 can be fixedly connected to the inner wall of the box body 1 through the support member 2D. The support member 2D can also be connected to the first rotating shaft 21 through the corresponding nut member 2C, and an elastic gasket can also be set between the nut member 2C and the support member 2D, so that the spring 29 is compressed between the nut member 2C and the nut member 2B.

[0041] Please refer to Figure 4 In this embodiment, the telescopic member specifically includes a first hinge plate 24 and a second hinge plate 25. The first hinge plate 24 and the second hinge plate 25 form a damped rotation connection around a second rotation axis 26. The end of the first hinge plate 24 away from the second hinge plate 25 forms a damped rotation connection with the first connecting plate 22 around a third rotation axis 27. The end of the second hinge plate 25 away from the first hinge plate 24 forms a damped rotation connection with the second connecting plate 23 around a fourth rotation axis 28. The second rotation axis 26, the third rotation axis 27, and the fourth rotation axis 28 are parallel to each other, and the second rotation axis 26 is perpendicular to the first rotation axis 21. In this way, the fixed plate 3 can be extended out of the installation opening by rotating the first hinge plate 24 and the second hinge plate 25. The damped rotation of the second rotation axis 26, the third rotation axis 27, and the fourth rotation axis 28 allows the fixed plate 3 to remain in the set position after being moved.

[0042] In this embodiment, the first connecting plate 22 comprises a first plate and a second plate connected in an L-shaped structure. The first plate is rotatably connected to the first rotating shaft 21, and the second plate is connected to the first hinge plate 24, resulting in a convenient connection and a compact structure. The second connecting plate 23 is provided with a 165°-175° angle, with the convex side of the angle closer to the fixed plate 3. By changing the angle, a more suitable installation connection with the installation opening is facilitated.

[0043] Please refer to Figure 4-Figure 6The light box in this embodiment, which facilitates quick replacement of the light strip 4, further includes a connecting terminal 5 for electrically connecting the LED light strip 4 to a power source. The connecting terminal 5 is provided with a power connection spring, which includes an elastic piece 511, a connecting piece 514, a first curved piece 512, and a second curved piece 513. The connecting piece 514 is connected to one side of the connecting terminal. The first curved piece 512 is connected between the elastic piece 511 and the connecting piece 514. The first curved piece 512 bends and extends away from the connecting terminal. The second curved piece 513 is connected to the end of the elastic piece 511 away from the first curved piece 512. The side of the second curved piece 513 away from the connecting piece 514 is a convex surface for electrically connecting to the LED light strip 4. This makes it very easy to install and connect to the LED light strip 4, and the electrical connection is very stable.

[0044] The light box in this embodiment, which is convenient for quick replacement of the light strip 4, also includes a limit block 6. The connecting terminal 5 and the limit block 6 are stacked on the fixed plate 3. The limit block 6 is located between the connecting terminal 5 and the fixed plate 3. One end of the connecting terminal 5 protrudes from the limit block 6. The power connection spring is located at the end of the connecting terminal 5 protruding from the limit block 6. The end face of the LED light strip 4 contacts the limit block 6, so that the position of the LED light strip 4 is stable and the electrical contact with the power connection spring is stable.

[0045] Please refer to Figure 5 and Figure 7 In addition, the connecting terminal 5's electrical springs include a positive electrical spring 51 and two negative electrical springs 52 located on either side of the positive electrical spring 51. A positive electrical pin 41 and two negative electrical pins 42 are provided at both ends of the LED light strip 4. The two negative electrical pins 42 are symmetrically arranged on either side of the positive electrical pin 41. The positive electrical spring 51 is electrically connected to the positive electrical pin 41, and the two negative electrical springs 52 are electrically connected to the two negative electrical pins 42 in a one-to-one correspondence. This ensures that the connecting terminal 5 and the LED light strip 4 can achieve electrical connection regardless of whether they are installed in the forward or reverse direction, enabling blind-plug assembly of the LED light strip 4, making assembly very convenient.

[0046] Please refer to Figure 2 The box body 1 in this embodiment includes a frame 11, a plug 12, a back panel 15, and a transparent panel 14. The four frames 11 are connected by plugs 12 to form a frame structure. The assembled box structure facilitates the installation of internal components. The back panel 15 and the transparent panel 14 are respectively enclosed in the openings on both sides of the frame structure. The installation port is located on the side of the box body between the back panel 15 and the transparent panel 14.

[0047] It is understandable that the location of the transparent plate 14 is the light outlet, and the diffusion plate 13 is located on the inner side of the transparent plate 14 .

[0048] Please refer to Figure 4The mounting port is provided on one of the frames 11, and a buckle groove 111 is provided on the outer surface of the frame 11 where the mounting port is located. The buckle groove 111 is communicated with the mounting port. When the fixing plate 3 is installed in the mounting port, the end surface of the fixing plate 3 is exposed in the buckle groove 111, which makes it convenient for the operator to pull out the fixing plate 3 from the buckle groove 111 for maintenance operations.

[0049] Please refer to Figure 1 In this embodiment, a positioning strip 31 for positioning the LED light strip 4 is provided on the fixing plate 3 to facilitate the positioning and installation of the LED light strip 4.

[0050] When the light box with blind-insertable LED light strips of this embodiment needs to be repaired or replaced, the operator only needs to apply force to the fixing plate 3 from the buckle slot 111. By overcoming the damping force of the second rotating shaft 26, the third rotating shaft 27, and the fourth rotating shaft 28, the first hinge plate 24 and the second hinge plate 25 rotate, thereby pulling the fixing plate 3 out of the installation opening. The fixing plate 3 can then be controlled to rotate about the first rotating shaft 21 so that the LED light strip 4 faces the operator, which greatly facilitates the operator's repair and replacement of the LED light strip.

[0051] After the repair and replacement is completed, the fixing plate 3 is controlled to rotate and move until it is closed to the installation opening.

[0052] This completes the disassembly and assembly process of the light box that can blindly replace the LED light bar when repairing the LED light bar in this embodiment.

[0053] In this preferred embodiment, a fixing plate of a light box that can blindly replace an LED light strip can be moved by a telescopic part to extend out of the box or retract into the box. At the same time, the fixing plate can be rotated around the first rotating axis so that the LED light strip on the fixing plate faces the direction of the operator, which makes it very convenient to repair and replace the LED light strip.

[0054] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined by the claims.

Claims

1. A light box with blind-insertion replacement LED light strips, characterized in that: include: A box, a connecting bracket, a fixing plate, a transparent plate, a back plate, a diffusion plate, a connecting terminal, and an LED light strip, wherein the transparent plate and the back plate are respectively provided on opposite sides of the box, the diffusion plate is provided in the box, a mounting opening is provided on one side of the box between the transparent plate and the back plate, both ends of the fixing plate are connected to the inner wall of the box via one of the connecting brackets, the fixing plate is located at the mounting opening, and the LED light strip is provided on the fixing plate; The connecting terminal is used to electrically connect the LED light strip and the power supply. The connecting terminal is provided with a power connection spring, and the power connection spring includes a positive power connection spring and two negative power connection springs respectively located on both sides of the positive power connection spring. A positive power connection pin and two negative power connection pins are provided at both ends of the LED light strip. The two negative power connection pins are symmetrically arranged on both sides of the positive power connection pin. The positive power connection spring is electrically connected to the positive power connection pin, and the two negative power connection springs are electrically connected to the two negative power connection pins one by one.

2. The light box with blind-pluggable LED light strips according to claim 1, characterized in that: The power connecting spring includes an elastic piece, a connecting piece, a first curved piece and a second curved piece. The connecting piece is connected to one side of the connecting terminal. The first curved piece is connected between the elastic piece and the connecting piece. The first curved piece is bent and extended in a direction away from the connecting terminal. The second curved piece is connected to one end of the elastic piece away from the first curved piece. The side of the second curved piece away from the connecting piece is an outer convex surface for electrically connecting to the LED light strip.

3. The light box with blind-pluggable LED light strips according to claim 2, characterized in that: The light box that can blindly replace the LED light strip also includes a limit block, the connecting terminal and the limit block are stacked on the fixed plate, the limit block is located between the connecting terminal and the fixed plate, one end of the connecting terminal protrudes from the limit block, the power connection spring is located at the end of the connecting terminal protruding from the limit block, and the end face of the LED light strip is in contact with the limit block.

4. The light box with blind-pluggable LED light strips according to claim 1, characterized in that: The connecting bracket includes a first rotating shaft, a first connecting plate, a second connecting plate, and a telescopic member, wherein the first rotating shaft is fixedly connected to the inner wall of the box body, the telescopic member is connected between the first connecting plate and the second connecting plate, the first connecting plate is rotatably connected around the first rotating shaft, and the second connecting plate is fixedly connected to the fixed plate, the axial direction of the first rotating shaft is consistent with the extension direction of the LED light strip, and the telescopic direction of the telescopic member is perpendicular to the axial direction of the first rotating shaft; The track of the fixed plate rotating around the first rotating shaft includes a light supply position and a mounting position, and the track of the fixed plate extending and retracting along with the retractable member includes an inward retraction position and an extended position; When the fixing plate is located at the light-supply position and the retracted position at the same time, the LED light strip is located inside the box and shines light in the direction of the diffusion plate; when the fixing plate is located at the installation position and the extended position at the same time, the LED light strip extends out of the installation opening and faces the external space of the installation opening.

5. The light box with blind-pluggable LED light strips according to claim 4, characterized in that: The connecting bracket also includes a spring, an elastic gasket, and a nut member. The spring and the elastic gasket are sleeved on the first rotating shaft. The nut member is threadedly connected to the first rotating shaft. The nut members are provided on both sides of the first connecting plate. The elastic gasket is provided between the nut member and the first connecting plate, and between the nut member and the spring. The spring is compressed and arranged between the inner wall of the box and the elastic gasket.

6. The light box with blind-pluggable LED light strips according to claim 4, characterized in that: The telescopic member includes a first hinge plate and a second hinge plate, the first hinge plate and the second hinge plate form a damped rotation connection around a second rotating axis, one end of the first hinge plate away from the second hinge plate forms a damped rotation connection with the first connecting plate around a third rotating axis, and one end of the second hinge plate away from the first hinge plate forms a damped rotation connection with the second connecting plate around a fourth rotating axis, the second rotating axis, the third rotating axis, and the fourth rotating axis are parallel, and the second rotating axis is perpendicular to the first rotating axis.

7. The light box with blind-pluggable LED light strips according to claim 6, characterized in that: The first connecting plate includes a first plate body and a second plate body connected to form an L-shaped structure, the first plate body is rotatably connected to the first rotating shaft, the second plate body is connected to the first hinge plate, and the second connecting plate is provided with a folding angle of 165°-175°, and the convex side of the folding angle is close to the fixed plate.

8. The light box with blind-pluggable LED light strips according to claim 1, characterized in that: The box body includes a frame and a plug. The four frames are connected by the plug to form a frame structure. The back plate and the transparent plate are respectively sealed and arranged on the openings on both sides of the frame structure.

9. The light box with blind-pluggable LED light strips according to claim 8, characterized in that: The mounting opening is arranged on one of the frame, and a buckle groove is arranged on the outer surface of the frame where the mounting opening is located, and the buckle groove is connected to the mounting opening. When the fixing plate is installed in the mounting opening, the end surface of the fixing plate is exposed in the buckle groove.

10. The light box with blind-pluggable LED light strips according to claim 1, characterized in that: The fixing plate is provided with a positioning strip for positioning the LED light strip.

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