Light-emitting lamp box with multi-aluminum-profile combined structure

Abstract

The light-emitting lamp box of the multi-aluminum-profile combined structure comprises an outer frame, a support is fixed to the back of the outer frame, the bottom of the support is connected with a base, and a detachable picture box body is arranged in the outer frame; the picture box body comprises a box door and a box body shell, the box door comprises a box cover door and a canvas door, one side of the box cover door is rotationally connected with one side of the box body shell through a stainless steel row chain, and one side of the canvas door is rotationally connected with one side of the box cover door through another stainless steel row chain; the rotating directions of the box cover door and the canvas door are opposite; the box body shell comprises a plurality of LED lamps irradiating forwards, a cam lock is arranged on the other side of the box body shell, a lock catch groove matched with the cam lock is arranged on the other side of the box cover door, and opening and closing of the box cover door are achieved by rotating the cam lock. A replaceable picture is arranged in the canvas door, and the middle position of the box cover door is of a transparent structure through which the replaceable picture can be seen. According to the invention, the convenience of picture replacement, the high efficiency of repair and maintenance and the flexibility of assembly type production are integrated.

Description

Technical Field

[0001] The invention relates to a luminous light box with a structure of multiple aluminum profiles, belonging to the technical field of light boxes. Background Art

[0002] With the booming development of the outdoor advertising industry and the aesthetic upgrade of urban construction, outdoor light boxes must not only withstand the test of bad weather, but also meet the modern needs of fast content replacement, reduced maintenance costs and green environmental protection. The inconvenience of traditional light boxes in image replacement and maintenance often leads to higher operating costs and longer downtime. Summary of the invention

[0003] The technical problem to be solved by the present invention is: how to conveniently replace, maintain and service the images on the light box, reduce operating costs and shorten downtime.

[0004] In order to solve the above technical problems, the technical solution of the present invention is to provide a light-emitting light box with a composite structure of multiple aluminum profiles, characterized in that it includes an outer frame, a bracket is fixed to the back of the outer frame, the bottom of the bracket is connected to the base, and a detachable picture box is provided in the outer frame;

[0005] The picture box includes a box door and a box shell, and the box door includes a box cover door and a canvas door. One side of the box cover door is rotatably connected to one side of the box shell through a stainless steel chain, and one side of the canvas door is rotatably connected to one side of the box cover door through another stainless steel chain; the box cover door and the canvas door rotate in opposite directions;

[0006] The box shell includes a plurality of LED lights irradiating forward, a cam lock is provided on the other side of the box shell, and a lock slot matching the cam lock is provided on the other side of the box cover door. The box cover door can be opened and closed by rotating the cam lock;

[0007] A replaceable picture is arranged inside the canvas door, and a transparent structure through which the replaceable picture can be seen is located in the middle of the box cover door.

[0008] Preferably, the box cover door comprises a box cover profile, the box cover profile is a frame-type structure, and the front end of the box cover profile is sealed and connected to the box cover panel;

[0009] The canvas door includes a picture frame profile, which is a frame-shaped structure. A picture card board is provided at the rear end of the picture frame profile, and a card slot is provided on the front surface of the picture card board for placing a replaceable picture.

[0010] The outer side of one end of the box cover profile is rotatably connected to the box body profile through a stainless steel chain, and the inner side of one end of the box cover profile is rotatably connected to the outer side of one end of the picture frame profile of the canvas door through another stainless steel chain; the rotation directions of the two stainless steel chains are opposite; the other end of the box cover profile is provided with a lock slot matching the cam lock; the box cover panel is a transparent PC board;

[0011] A socket is provided on the other side of the picture card board, and the replaceable picture can be inserted into the picture card board through the socket; the socket position of the picture card board on the other end of the picture frame profile is an open structure, which makes room for the replaceable picture to be inserted into the picture card board.

[0012] Preferably, the two ends of one side of the stainless steel chain are welded to the outer end of the picture frame profile, and the middle position is locked and connected to the picture frame profile by a locking screw; the two ends of the other side of the stainless steel chain are welded to the inner end of the box cover profile, and the middle position is locked and connected to the box cover profile by a locking screw.

[0013] Preferably, the picture box is divided into a single-picture box and a double-picture box, the single-picture box has a pair of replaceable pictures inside its canvas door; the double-picture box has two pairs of replaceable pictures inside its canvas door; the double-picture box also includes a middle separate profile, the left and right ends of the middle separate profile are fixed on the inner walls of the left and right ends of the picture frame profile, and the upper and lower ends of the back of the middle separate profile are provided with bayonet grooves, which are respectively used to limit the positions of the upper and lower picture card boards.

[0014] Preferably, the box cover profile and the box body profile are connected to the stainless steel chain by screws and slider nuts respectively; the slider nut comprises a slider nut body, a screw hole and a ball groove are provided at the middle position of the front end of the slider nut body, the screw hole and the ball groove are arranged along the length direction of the slider nut body, the screw hole is fastened to the stainless steel chain by screws, a spring and a ball are arranged in the ball groove, the ball is located at the end position of the ball groove, and the size of the ball groove end position is smaller than the maximum diameter of the ball; the size of the slider nut hole end position is not less than the height of the slider nut body, and is smaller than the width of the slider nut body;

[0015] The slider nut hole is a track-shaped structure in the length direction, and the end in the length direction is closed. The cross section of the slider nut hole is a trapezoidal structure, and the slider nut is a long strip structure.

[0016] Press the ball to slide sideways into the slider nut hole, then release it, insert the entire slider nut into the slider nut hole, and completely enter the slider nut hole. The slider nut supports the ball through the spring, thereby supporting and restricting it in the slider nut hole; then screw through the stainless steel chain and the screw hole of the slider nut to fasten it.

[0017] Preferably, the slider nut body is provided with concave steps on both sides of the back side of the ball groove, and the middle position of the rear end of the slider nut body is raised at the positions on both sides, and the width of the protrusion matches the size of the position of the slider nut hole port;

[0018] After the entire slider nut is completely inserted into the slider nut hole, the middle position protrusion at the rear end of the slider nut body is arranged at the end position of the slider nut hole, and the concave steps on both sides of the rear end of the slider nut body abut against the inner wall of the slider nut hole end.

[0019] Preferably, the box shell includes a box profile, which is a U-shaped frame structure, the inner wall of the rear side of the box profile is connected to the light board, the rear end of the box profile is connected to the rear sealing plate, the rear sealing plate is located behind the light board, and a plurality of LED lights are connected to the front surface of the light board. One side of the front end of the box profile is rotatably connected to the box door, and a lock hole is provided on the other side of the box profile, and the tongue lock passes through the lock hole and is fixedly connected to the side wall of the other side of the box profile.

[0020] Preferably, the bracket includes a main frame, a support rod is vertically provided at the top and middle position of the main frame respectively, a connecting plate for connecting with the base is fixed to the bottom end of the main frame, each support rod is provided with a limit connecting piece, the number of the limit connecting pieces on each support rod is the same as the total number of all double-screen boxes and single-screen boxes, the limit connecting piece is fastened to the double-screen box and / or the single-screen box by fasteners; the limit connecting piece is inserted into the rear end groove of the box profile and is connected by screws, and the screws also pass through the light board and are fastened to the limit connecting piece and the box profile.

[0021] Preferably, a first cover plate is provided on the upper part of the back side of the main frame, and a second cover plate is provided on the lower part of the back side of the main frame. The main frame is a hollow structure, and openings are provided on the back side of the main frame at the positions of the first cover plate and the second cover plate, so that the wires can be inserted from the opening at the bottom second cover plate position and pass through the inside of the main frame to connect with the LED lamp; the opening at the first cover plate position is the plug-in position for the wires to connect to the LED lamp, and the first cover plate is a long strip structure; the structure of the second cover plate is smaller than that of the first cover plate, and a threading hole for the power supply line to pass through is provided in the middle of the second cover plate.

[0022] Preferably, the double-screen box and the single-screen box are both tilted left and right inside the outer frame.

[0023] The present invention integrates the convenience of changing screens, the high efficiency of repair and maintenance, and the flexibility of assembly production, creating an eye-catching lighting effect visual experience to achieve the best advertising display effect.

[0024] Compared with the prior art, the present invention has at least one of the following characteristics:

[0025] 1. Requirements for outdoor environment: Outdoor light boxes are exposed to natural conditions such as wind and rain, large temperature differences, and strong ultraviolet rays, and require a stable structure that is weather-resistant and well sealed. The use of high-quality aluminum profiles, with their natural anti-corrosion, light weight, and high strength, provides a solid foundation for the long-term stable operation of the light box.

[0026] 2. Quick screen replacement mechanism: The unique open structure design makes it possible to replace screens without professional tools. It can be quickly operated by one person, greatly shortening downtime and improving advertising update efficiency.

[0027] 3. Modular maintenance structure: Each component is modularly designed, and damaged parts can be disassembled and replaced separately, which simplifies the maintenance process and reduces maintenance costs.

[0028] 4. Assembly production reduces on-site cutting and welding operations, reduces energy consumption and waste generation, and is in line with modern green production concepts.

[0029] 5. The prefabricated design simplifies logistics and transportation, requiring only simple assembly on site, shortening the project cycle and adapting to rapid response to changes in market demand.

[0030] 6. Heat dissipation optimization design: Combined with the excellent thermal conductivity of aluminum profiles, an efficient heat dissipation structure is designed to ensure that the LED light source works stably for a long time, reduce light decay, and maintain a long-lasting and bright lighting effect.

[0031] 7. Use high-brightness, low-power LED lights, combined with precise optical lens design to ensure even light distribution, avoid glare and light spots, and improve picture color saturation and contrast.

[0032] 8. On the basis of maintaining the convenience of changing the screen and convenient maintenance, the lighting system and the aluminum profile structure are integrated to ensure that all electronic components are sealed and waterproof to adapt to the changing outdoor climate. At the same time, through advanced assembly production technology, the production cycle is accelerated, each component is ensured to be accurately connected, the on-site installation steps are simplified, and the overall efficiency and quality control are improved.

[0033] 9. Through precise CAD design and BIM technology, the components of the light box can be standardized and prefabricated to reduce on-site construction time and error rate.

[0034] 10. The box cover profile and the box body profile in the present invention are respectively connected to the stainless steel chain through slider nuts. The slider nuts are used to facilitate the adjustment of the upper and lower gaps of the light box door and the adjustment of the surface flatness, which significantly improves the product quality. The slider nuts have the advantages of precise adjustment within a certain range, disassembly and reinstallation, easy maintenance, and strong flexibility. If the connection method of the slider nut is changed to welding, it will be detrimental to the flatness of the product, easy to deform, and difficult to repair after welding. In actual production and manufacturing, it is not conducive to the operation of other processes, such as inconvenient surface treatment, clumsy products when welded together, and inconvenient operation during assembly, and there is a certain degree of interference. If the connection method of the slider nut is changed to screw fixed connection, there is a defect of falling due to the frequent opening and closing of the light box door.

[0035] The invention not only improves the technical content and aesthetics of outdoor advertising facilities, but also effectively controls costs, increases product flexibility and competitiveness through the application of various processing technologies such as welding and assembly production, and promotes the healthy development of the outdoor media market. At the same time, it also makes a positive contribution to promoting smart city construction and environmental protection. The use of environmentally friendly materials and high-efficiency light sources reduces energy consumption, and combined with the long-life design of the light box, it reflects the adherence to the concept of sustainable development and is in line with the trend of green manufacturing and circular economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of a luminous light box with a composite structure of multiple aluminum profiles;

[0037] Figure 2 It is a front view schematic diagram of a luminous light box with a composite structure of multiple aluminum profiles;

[0038] Figure 3 It is a side view schematic diagram of a luminous light box with a composite structure of multiple aluminum profiles;

[0039] Figure 4 It is a schematic diagram of the top surface of a luminous light box with a composite structure of multiple aluminum profiles;

[0040] Figure 5 It is a disassembled schematic diagram of a luminous light box with a composite structure of multiple aluminum profiles;

[0041] Figure 6 for Figure 2 BB cross-sectional view;

[0042] Figure 7 for Figure 6 An enlarged schematic diagram of the C position in the middle;

[0043] Figure 8 for Figure 6 A magnified schematic diagram of the position D in the middle;

[0044] Fig. 9 is a front perspective view of the bracket;

[0045] Fig.10 is a back perspective view of the bracket;

[0046] Fig.11 is a front view of the bracket;

[0047] Fig.12 is a side view of the bracket;

[0048] Fig.13 This is a schematic diagram of the back side of the bracket;

[0049] Fig.14 is a schematic diagram of the top surface of the bracket;

[0050] Fig.15 for Figure 2 AA section view;

[0051] Fig.16 for Fig.15 The enlarged schematic diagram at position E in the middle;

[0052] Fig.17 for Fig.15 The enlarged schematic diagram at the F position in the middle;

[0053] Fig.18 This is the top cross-sectional view of the double-screen cabinet when it is opened;

[0054] Fig.19 It is a side sectional view of a double-screen box;

[0055] Fig. 20 for Figure 2 Middle CC section view;

[0056] Fig.21 for Fig.18 An enlarged schematic diagram of the G position in the middle;

[0057] Fig. 22 for Fig.18 A magnified schematic diagram of the H position in the middle;

[0058] Fig.23 This is a schematic diagram of the slider nut being installed into the slider nut hole of the box profile;

[0059] Fig.24 It is a schematic diagram after the slider nut is installed into the slider nut hole of the box profile;

[0060] Fig.25 It is a front view of the slider nut body;

[0061] Fig.26 It is a side view of the slider nut body;

[0062] Fig. 27 It is a schematic diagram of the top surface of the slider nut body;

[0063] Fig.28 This is a schematic diagram of the splitting of a single-screen cabinet;

[0064] Fig.29 It is a front view of the box profile;

[0065] Fig.30 for Fig.29 BJ-BJ cross-sectional view;

[0066] Fig.31 for Fig.29 BK-BK cross-sectional view;

[0067] Fig.32 It is a three-dimensional diagram of the box profile;

[0068] Fig.33 This is a front view of the door;

[0069] Fig.34 for Fig.33 AK-AK cross-sectional view;

[0070] Fig.35 for Fig.33 AJ-AJ cross-sectional view;

[0071] Fig.36 This is a schematic diagram of the disassembly of the box door;

[0072] Fig.37 for Fig.34 An enlarged schematic diagram of the position I in the middle;

[0073] Fig.38 for Fig.35 A magnified schematic diagram of the J position in the middle;

[0074] Fig.39 for Fig.35 A magnified schematic diagram of the middle K position;

[0075] Fig.40 It is a front view diagram of the canvas door of the double-picture box;

[0076] Fig.41 for Fig.40 CJ-CJ cross-sectional view;

[0077] Fig.42 for Fig.40 CK-CK cross-sectional view;

[0078] Fig.43 A three-dimensional image of the canvas door of a double-image box;

[0079] Fig.44 for Fig.42 An enlarged schematic diagram of the M position in the middle;

[0080] Fig.45 for Fig.42 A magnified schematic diagram of the N position in the middle;

[0081] Fig.46 for Fig.41 An enlarged schematic diagram of the L position in the middle;

[0082] Fig.47 It is a comparative diagram of the picture frame profile and the middle separate profile;

[0083] Fig.48Schematic diagrams for comparing picture frame profiles at different positions (the latter is the structure at the opening position of the picture card board, and the former is the structure at other positions except the opening position of the picture card board). DETAILED DESCRIPTION

[0084] In order to make the present invention more clearly understood, preferred embodiments are described in detail below with reference to the accompanying drawings.

[0085] The present invention provides a luminous light box with a combination structure of various aluminum profiles, such as Figure 1-Figure 48 As shown, it includes an outer frame 2, a bracket 1 is fixed to the back of the outer frame 2, the bottom of the bracket 1 is connected to the base 4, and two detachable double-screen boxes 3 and a single-screen box 5 are arranged in the outer frame 2.

[0086] In this embodiment, the double-screen box 3 and the single-screen box 5 are both tilted left and right in the outer frame 2, that is, one side of the double-screen box 3 and the single-screen box 5 is arranged in the outer frame 2, and the other side is tilted outward for easy opening, and the tilt angle is 6°.

[0087] The double-picture box 3 comprises a box door and a box shell 33 , wherein the box door covers and is rotatably connected to the box shell 33 .

[0088] The box shell 33 includes a box profile 332, which is a U-shaped frame structure. The inner wall of the rear side of the box profile 332 is connected to the light board 331 through an external hexagonal screw 8. The rear end of the box profile 332 is connected to a rear sealing plate 333, which is located behind the light board 331. A plurality of LED lights 334 are connected to the front surface of the light board 331. One side of the front end of the box profile 332 is rotatably connected to the box door, and a lock hole 336 is provided on the other side of the box profile 332. The tongue lock 335 passes through the lock hole 336 and is fixedly connected to the side wall of the other side of the box profile 332, such as Fig.17 shown.

[0089] The bracket 1 includes a main frame 11, and a support rod 12 is vertically provided at the top and middle positions of the main frame 11 respectively. A connecting plate 16 is fixed to the bottom end of the main frame 11 for connecting with the base 4. Three limiting connecting pieces 13 are provided on each support rod 12, which are used to fasten and connect two double-screen boxes 3 and one single-screen box 5 through fasteners (that is, the corresponding limiting connecting pieces 13 on the two support rods 12 are respectively connected to the upper and lower ends of the two double-screen boxes 3 and one single-screen box 5). A first cover plate 14 is provided on the upper part of the back side of the main frame 11, and a second cover plate 15 is provided on the lower part of the back side of the main frame 11. The main frame 11 is a hollow structure, and openings are provided on the back side of the main frame 11 at the positions of the first cover plate 14 and the second cover plate 15, so that the wires are inserted from the opening at the bottom second cover plate 15 and pass through the inside of the main frame 11 to be connected with the LED lamp 334. The opening at the position of the first cover plate 14 is the plug-in position for connecting the wires to the LED lamp 334. The first cover plate 14 is a long strip structure, which is convenient for connecting and replacing the wires. The structure of the second cover plate 15 is smaller than that of the first cover plate 14. A wire threading hole is provided in the middle of the second cover plate 15, and only the power wire needs to pass through.

[0090] The limiting connecting piece 13 is inserted into the rear end groove of the box profile 332 and connected by an external hexagonal screw 8. The external hexagonal screw 8 also passes through the lamp board 331 and is fastened together with the limiting connecting piece 13 and the box profile 332.

[0091] The outer frame 2 is provided with a long hole for the limiting connecting piece 13 to pass through. After the outer frame 2 passes through the limiting connecting piece 13, it is welded and connected to the front end of the support rod 12.

[0092] In this embodiment, the lamp panel 331 is a white aluminum-plastic panel; the rear sealing panel 333 is an aluminum plate; the outer frame 2 is a bent galvanized plate; the main frame 11 is a black flat tube; the support rod 12 is an angle steel; the base 4 is a skirt panel formed by bending an aluminum plate; the model of the tongue lock 335 is EMKA; the support rod 12 and the limiting connecting plate 13 are an integrally formed structure.

[0093] The box door is a double-layer door, which includes a box cover door 31 and a canvas door 32. The box cover door 31 is connected to one side of the box shell 33 through a stainless steel chain 6, and the canvas door 32 is connected to one side of the box cover door 31 through a stainless steel chain 6.

[0094] The box cover door 31 includes a box cover profile 312 . The box cover profile 312 is a frame-shaped structure. The front end of the box cover profile 312 is sealed and connected to the box cover panel 311 .

[0095] The canvas door 32 includes a picture frame profile 323 , which is a frame-shaped structure. A picture card board 322 is provided at the rear end of the picture frame profile 323 , and a card slot is provided on the front surface of the picture card board 322 for placing a replaceable picture 321 .

[0096] The outer side of one end of the box cover profile 312 is rotatably connected to the box body profile 332 through a stainless steel row chain 6, and the inner side of one end of the box cover profile 312 is rotatably connected to the outer side of one end of the picture frame profile 323 of the canvas door 32 through another stainless steel row chain 6. The rotation directions of the two stainless steel row chains 6 are opposite. Among them, the box cover panel 311 is a transparent PC board; the picture card board 322 is a milky white PC board. The other end of the box cover profile 312 is provided with a lock groove matching the tongue lock 335. By rotating the tongue lock 335, when the tongue on the tongue lock 335 is stuck in the lock groove, the locking function is realized; by rotating the tongue lock 335, when the tongue on the tongue lock 335 comes out of the lock groove, the unlocking function is realized, so that the box door can be opened.

[0097] like Fig.16 , Fig.21 As shown, the box cover profile 312 and the box body profile 332 are connected to the stainless steel chain 6 via hexagon socket round head screws and slider nuts 7 respectively.

[0098] Since the slider nut hole 75 is a track-type structure and is closed at the top and bottom, and the cross section of the slider nut hole 75 is a trapezoidal structure, the slider nut 7 can only be embedded from one side. Therefore, the design structure of the slider nut 7 is as follows:

[0099] like Fig.25 , Fig.26 , Fig. 27 As shown, the slider nut 7 is a long strip structure, and the slider nut 7 is a hexagon socket head screw with a special spring nut; the slider nut 7 includes a slider nut body 71, and a screw hole 73 and a ball groove 74 are opened in the middle position of the front end of the slider nut body 71. The screw hole 73 and the ball groove 74 are arranged along the length direction of the slider nut body 71. The screw hole 73 is used to fasten the connection with the stainless steel row chain 6 through the hexagon socket head screw. The ball groove 74 is installed with a spring and a ball. The ball is located at the end position of the ball groove 74, and the size of the end position of the ball groove 74 is smaller than the maximum diameter of the ball. The slider nut body 71 is provided with concave steps 72 on both sides of the back of the ball groove 74, that is, the middle position of the rear end of the slider nut body 71 is protruding from the two sides, and the width of the protrusion matches the size of the end position of the slider nut hole 75. The size of the end position of the slider nut hole 75 is not less than the height of the slider nut body 71, and is smaller than the width of the slider nut body 71.

[0100] The slider nut 7 is first inserted into the slider nut hole 75 of the box profile 332, and then the hexagon socket round head screw is passed through the stainless steel chain 6 to fasten the slider nut 7. The process of the slider nut 7 entering the slider nut hole 75 of the box profile 332 is as follows: Fig.23 , Fig.24As shown, by pressing the ball to slide sideways into the slider nut hole 75 and then releasing it, the entire slider nut 7 is inserted into the slider nut hole 75 and completely enters the slider nut hole 75. The slider nut 7 supports the ball through the spring, thereby being fixed and supported in the slider nut hole 75, and a protrusion at the middle position of the rear end of the slider nut body 71 is provided at the end position of the slider nut hole 75, and the recessed steps 72 on both sides of the rear end of the slider nut body 71 abut against the inner wall of the end of the slider nut hole 75.

[0101] like Fig.44 As shown, in order to solve the problems of welding deformation and the problem of unstable installation when using locking screws 9 alone, segmented welding and fixing with locking screws 9 are adopted to solve the safety and firmness of opening and improve the quality of the overall product. That is, the two ends of one side of the stainless steel chain 6 are welded to the outer ends of the picture frame profile 323, and the middle position is locked and connected to the picture frame profile 323 by locking screws 9. In this embodiment, locking screws 9 are stainless steel pan head self-tapping locking screws (triangular head). Similarly, the two ends of the other side of the stainless steel chain 6 are welded to the inner ends of the box cover profile 312, and the middle position is locked and connected to the box cover profile 312 by locking screws 9.

[0102] A socket is provided on the other side of the picture card plate 322 (ie, the side opposite to the stainless steel chain 6 ), and the replaceable picture 321 can be inserted into the picture card plate 322 through the socket.

[0103] The other end of the picture frame profile 323 is located at the insertion position of the picture card plate 322 and is an open structure (that is, the card slot 3261 is cut off, such as Fig.48 and the picture frame profile 323 is provided with a bayonet slot 3261 at other positions outside this position, such as Fig.48 As shown in the left figure, it is convenient for inserting the picture card board 322 and limiting the position of the picture card board 322, that is, the edge part is removed to make room for the replaceable picture 321 to be inserted into the picture card board 322.

[0104] The structures of the single-picture box 5 and the double-picture box 3 are roughly the same, with the difference that: there is no middle separate profile 326 in the middle of the canvas door 32 of the single-picture box 5, and only one picture card board 322 is provided; the canvas door 32 of the double-picture box 3 is provided with a middle separate profile 326 in the middle position, dividing the entire canvas door 32 into two parts, each part is provided with a picture card board 322, and each picture card board 322 is provided with a pair of replaceable pictures 321.

[0105] Each canvas door 32 is provided with a first corner code 324 at the four corners thereof. Fig.45 As shown, the middle position of the canvas door 32 of the double-screen box 3 and the upper and lower ends of both sides of the middle single profile 326 are provided with second corner codes 325, such as Fig.46 shown.

[0106] The left and right ends of the middle separate profile 326 are fixed on the inner walls of the left and right ends of the picture frame profile 323, and the upper and lower ends of the back of the middle separate profile 326 are provided with bayonet grooves 3261, which are respectively used to limit the positions of the upper and lower picture clamping plates 322.

[0107] If the middle single profile 326 is used to splice up and down with the picture frame profile 323, such as Fig.47 As shown in the right figure, the middle part is wider, the overall appearance is not harmonious and beautiful, and there is a seam at the joint of the two profiles, which is an obvious defect. Therefore, in this embodiment, the middle separate profile 326 cuts off the concave part on the outside of the picture frame profile 323 and is made into an integrally formed structure, such as Fig.47 As shown in the left figure, avoid the above problems.

Claims

1. A luminous light box with a composite structure of multiple aluminum profiles, characterized in that: It comprises an outer frame (2), a bracket (1) is fixed on the back of the outer frame (2), the bottom of the bracket (1) is connected to the base (4), and a detachable picture box is arranged inside the outer frame (2); The picture box comprises a box door and a box shell (33), wherein the box door comprises a box cover door (31) and a canvas door (32), wherein one side of the box cover door (31) is rotatably connected to one side of the box shell (33) via a stainless steel row chain (6), and one side of the canvas door (32) is rotatably connected to one side of the box cover door (31) via another stainless steel row chain (6); the box cover door (31) and the canvas door (32) rotate in opposite directions; The box housing (33) includes a plurality of LED lights (334) that illuminate forward, a tongue lock (335) is provided on the other side of the box housing (33), and a lock groove that matches the tongue lock (335) is provided on the other side of the box cover door (31). By rotating the tongue lock (335), the box cover door (31) can be opened and closed. A replaceable picture (321) is arranged inside the canvas door (32), and a transparent structure through which the replaceable picture (321) can be seen is located in the middle of the box cover door (31).

2. The luminous light box with multiple aluminum profile combined structure as claimed in claim 1, characterized in that: The box cover door (31) comprises a box cover profile (312), the box cover profile (312) is a frame-type structure, and the front end of the box cover profile (312) is sealed and connected to the box cover panel (311); The canvas door (32) comprises a picture frame profile (323), the picture frame profile (323) is a frame-shaped structure, a picture card board (322) is arranged at the rear end of the picture frame profile (323), and a card slot is arranged on the front surface of the picture card board (322) for placing a replaceable picture (321); The outer side of one end of the box cover profile (312) is rotatably connected to the box body profile (332) through a stainless steel row chain (6), and the inner side of one end of the box cover profile (312) is rotatably connected to the outer side of one end of the picture frame profile (323) of the canvas door (32) through another stainless steel row chain (6); the rotation directions of the two stainless steel rows of chains (6) are opposite; the other end of the box cover profile (312) is provided with a lock groove matching the tongue lock (335); the box cover panel (311) is a transparent PC board; A socket is provided on the other side of the picture card board (322), and the replaceable picture (321) can be inserted into the picture card board (322) through the socket; the socket position of the picture card board (322) on the other end of the picture frame profile (323) is an open structure, which makes room for the replaceable picture (321) to be inserted into the picture card board (322).

3. The luminous light box with a composite structure of multiple aluminum profiles as claimed in claim 2, characterized in that: The two ends of one side of the stainless steel chain (6) are welded to the outer ends of the picture frame profile (323), and the middle position is locked and connected to the picture frame profile (323) via a locking screw (9); the two ends of the other side of the stainless steel chain (6) are welded to the inner ends of the box cover profile (312), and the middle position is locked and connected to the box cover profile (312) via a locking screw (9).

4. The luminous light box with a composite structure of multiple aluminum profiles as claimed in claim 2, characterized in that: The picture box is divided into a single-picture box (5) and a double-picture box (3). A pair of replaceable pictures (321) is arranged in the canvas door (32) of the single-picture box (5); two pairs of replaceable pictures (321) are arranged in the canvas door (32) of the double-picture box (3); the double-picture box (3) further comprises a middle single profile (326), the left and right ends of the middle single profile (326) are fixed on the inner walls of the left and right ends of the picture frame profile (323), and the upper and lower ends of the back of the middle single profile (326) are provided with bayonet grooves (3261), which are respectively used to limit the positions of the upper and lower picture clamping plates (322).

5. The luminous light box with a composite structure of multiple aluminum profiles as claimed in claim 2, characterized in that: The box cover profile (312) and the box body profile (332) are connected to the stainless steel row chain (6) by screws and slider nuts (7) respectively; the slider nut (7) comprises a slider nut body (71); a screw hole (73) and a ball groove (74) are provided at the middle position of the front end of the slider nut body (71); the screw hole (73) and the ball groove (74) are arranged along the length direction of the slider nut body (71); the screw hole (73) is fastened to the stainless steel row chain (6) by screws; a spring and a ball are arranged in the ball groove (74); the ball is located at the end position of the ball groove (74), and the size of the end position of the ball groove (74) is smaller than the maximum diameter of the ball; the size of the end position of the slider nut hole (75) is not smaller than the height of the slider nut body (71) and is smaller than the width of the slider nut body (71); The slider nut hole (75) is a track-shaped structure in the length direction, and the end in the length direction is closed, the cross section of the slider nut hole (75) is a trapezoidal structure, and the slider nut (7) is a long strip structure; The ball bearing is pressed and slid sideways into the slider nut hole (75), and then released, so that the entire slider nut (7) is inserted into the slider nut hole (75). The slider nut (7) completely enters the slider nut hole (75) and supports the ball bearing through the spring, thereby supporting and restricting it in the slider nut hole (75); and then the stainless steel chain (6) is screwed through the screw hole (73) of the slider nut (7) to be fastened and connected.

6. The multiple aluminum profile combined structure luminous light box as claimed in claim 5, characterized in that: The slider nut body (71) is provided with concave steps (72) on both sides of the back side of the ball groove (74), and the middle position of the rear end of the slider nut body (71) is protruding at the positions of the two sides, and the width of the protrusion matches the size of the port position of the slider nut hole (75); After the entire slider nut (7) completely enters the slider nut hole (75), the protrusion at the middle position of the rear end of the slider nut body (71) is arranged at the end position of the slider nut hole (75), and the concave steps (72) on both sides of the rear end of the slider nut body (71) abut against the inner wall of the end of the slider nut hole (75).

7. The luminous light box with a composite structure of multiple aluminum profiles as claimed in claim 1, characterized in that: The box shell (33) comprises a box profile (332), the box profile (332) is a U-shaped frame structure, the rear inner wall of the box profile (332) is connected to the light board (331), the rear end of the box profile (332) is connected to a rear sealing plate (333), the rear sealing plate (333) is located behind the light board (331), and a plurality of LED lights (334) are connected to the front surface of the light board (331), one side of the front end of the box profile (332) is rotatably connected to the box door, and a lock hole (336) is provided on the other side of the box profile (332), and a tongue lock (335) passes through the lock hole (336) and is fixedly connected to the side wall of the other side of the box profile (332).

8. The multiple aluminum profile combined structure luminous light box as claimed in claim 7, characterized in that: The bracket (1) comprises a main frame (11), wherein a support rod (12) is vertically arranged at the top and middle position of the main frame (11), and a connecting plate (16) for connecting with a base (4) is fixed at the bottom end of the main frame (11). A limit connecting piece (13) is arranged on each support rod (12), and the number of the limit connecting pieces (13) on each support rod (12) is the same as the total number of all double-screen boxes (3) and single-screen boxes (5). The limit connecting piece (13) is fastened to the double-screen box (3) and / or the single-screen box (5) through a fastener; the limit connecting piece (13) is inserted into the rear end groove of the box profile (332) and connected by a screw, and the screw also passes through the light board (331) and is fastened to the limit connecting piece (13) and the box profile (332).

9. The multiple aluminum profile combined structure luminous light box as claimed in claim 8, characterized in that: A first cover plate (14) is provided at the upper part of the back side of the main frame (11), and a second cover plate (15) is provided at the lower part of the back side of the main frame (11). The main frame (11) is a hollow structure. Openings are provided at the positions of the first cover plate (14) and the second cover plate (15) on the back side of the main frame (11), so that the electric wires can be inserted from the opening at the bottom second cover plate (15) and pass through the inside of the main frame (11) to be connected to the LED lamp (334); the opening at the first cover plate (14) is a plug-in position for the electric wires to connect to the LED lamp (334), and the first cover plate (14) is a long strip structure; the structure of the second cover plate (15) is smaller than that of the first cover plate (14), and a threading hole for the power supply line to pass through is provided in the middle of the second cover plate (15).

10. The luminous light box with multiple aluminum profile combined structure as claimed in claim 1, characterized in that: The double-picture box (3) and the single-picture box (5) are both arranged inside the outer frame (2) in a tilted manner to the left and right.

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