CN115641788A - Advertising lamp box - Google Patents

Abstract

The present application relates to an advertising light box, and relates to the technical field of advertising light boxes. A number of lamp beads, a first clip is provided between the bracket and the lamp trough, one end of the lamp trough is detachably mounted on the bracket through the first clip, and a second clip is provided between the bracket and the lamp trough The other end of the lamp trough is detachably mounted on the bracket through the second clamping piece. The application has the effect of facilitating the maintenance of the LED lamp.

Description

an advertising light box

technical field

The present application relates to the technical field of advertising light boxes, in particular to an advertising light box.

Background technique

Advertising light boxes are generally used for outdoor advertising. Usually, the outermost layer of the light box is a light cloth or acrylic board, which is used to carry advertising information. When the light is sufficient during the day, people can directly see the advertising information carried on the advertising light box. The LED lights light up to illuminate the light cloth or acrylic board, so that people can clearly see the advertising information carried by the light box.

The LED lights in the existing advertising light boxes are installed in the light grooves, and the light grooves are installed in the advertising light boxes through screws, and multiple light grooves are arranged and installed in the light boxes; when the LED lights are damaged and need to be repaired and replaced, the lights need to be replaced first. The groove is removed from the box body, and then the lamp bead is replaced. The light groove is fixed in the box body by screws, so it is not convenient to maintain the LED lamp.

Contents of the invention

In order to facilitate the maintenance of LED lamps, the present application provides an advertising light box.

An advertising light box provided by this application adopts the following technical scheme:

An advertising light box, comprising a bracket, a sealing plate arranged around the bracket, a backboard arranged on the bracket, an advertising board for carrying advertisement information, a light groove and a number of lamp beads arranged in the light groove, the bracket and the light groove There is a first clamping piece between them, one end of the light trough is detachably mounted on the bracket through the first clamping piece, a second clamping piece is arranged between the bracket and the light trough, and the other end of the light trough is passed through The second clip is detachably mounted on the bracket.

By adopting the above technical solution, the two ends of the light trough are respectively fixed by the first clamping piece and the second clamping piece, so that the light trough can be detachably connected to the bracket, making the installation and disassembly of the light trough more convenient and quick. When the LED lamp is damaged, it is convenient to repair the LED lamp.

Optionally, the first clamping member includes a first spring steel sheet fixed on the bracket, a block fixed on the side of the lamp groove away from the lamp bead, and an abutment block, and the first spring steel sheet includes a bottom plate and a The slanting plates arranged at both ends of the bottom plate, the ends of the two sloping plates facing away from the bottom plate are arranged close to each other, and the side of the clamping block facing away from the first spring steel sheet is provided with reinforcing ribs.

By adopting the above technical scheme, the clamping block is squeezed in from the opening positions of the two slanting plates, and thus clamped into the first spring steel sheet, which is convenient for installation. When it needs to be disassembled, just pull out the clamping block from the opening positions of the two sloping plates , The ribs make the block more stable when it is installed and disassembled.

Optionally, a mounting block is fixed on the side of the two inclined plates facing the bottom plate, and a roller is connected to the end of the mounting block rotatably facing away from the bottom plate.

By adopting the above technical solution, the roller facilitates the insertion and extraction of the clamping block during installation and disassembly, making the installation and disassembly of one end of the lamp trough more convenient.

Optionally, the second clip includes a fixed block fixed to the bracket, a buckle fixed to the end of the fixed block facing the lamp trough, and a second spring steel sheet fixed to the side of the lamp trough away from the lamp bead. Two spring steel sheets are clamped on the buckle, and the buckle includes two clamping rods fixed on the fixed block and a clamping block fixed on the end of the clamping rod away from the fixed block, and the two clamping blocks are arranged close to each other .

By adopting the above technical solution, the second spring steel sheet is clamped to the buckle through interference fit so that the other end of the light trough is also fixed, and the installation and disassembly of the light trough is facilitated by the buckle.

Optionally, the abutting block slides through the bottom plate, both ends of the abutting block are provided with limit blocks, the bracket is fixed with a mounting plate, and the mounting plate is hinged with the first rotating rod and the second rotating rod. Two rotating rods, one end of the first rotating rod and the second rotating rod are hinged on the mounting plate, a first connecting rod is arranged between the first rotating rod and the second rotating rod, and one end of the first connecting rod It is hinged to the unhinged end of the first rotating rod, and the other end is hinged to the side of the second rotating rod. The mounting plate is provided with a first guide sleeve, and a first push block is slipped inside the first guide sleeve. , the first push block and the abutment block are coaxially arranged and the first push block is in contact with the abutment block, a second connecting rod is arranged between the first rotating rod and the pushing block, and the second connecting rod One end is hinged to the middle part of the first rotating rod, the other end is hinged to the end of the pushing block away from the abutting block, the mounting plate is hinged to a third rotating rod, one end of the third rotating rod is hinged to the mounting plate, the second A third connecting rod is arranged between the rotating rod and the third rotating rod, one end of the third connecting rod is hinged to the unhinged end of the second rotating rod, and the other end is hinged to the middle part of the third rotating rod.

By adopting the above-mentioned technical scheme, turning the unhinged end of the third rotating rod, the rotation of the third rotating rod will drive the movement of the third connecting rod, thereby driving the rotation of the second rotating rod, while the second rotating rod rotates and pulls the first connecting rod through the first connecting rod. The rotating rod rotates, and the first rotating rod rotates through the conduction of the second connecting rod so that the first pushing block slides and moves along the first guide sleeve, the first pushing block pushes the abutting block to move and pushes the locking block out of the first spring steel sheet, Therefore, it is convenient to disassemble the lamp groove.

Optionally, the mounting plate is hinged with a fourth rotating rod and a fifth rotating rod, one end of the fourth rotating rod and the fifth rotating rod is hinged to the mounting plate, and the connection between the fourth rotating rod and the fifth rotating rod A fourth connecting rod is arranged between them, one end of the fourth connecting rod is hinged to the unhinged end of the fourth rotating rod, and the other end is hinged to the side of the fifth rotating rod, the mounting plate is provided with a second guide sleeve, A second push block is provided for sliding in the second guide sleeve, a fifth connecting rod is arranged between the second push block and the fourth rotating rod, and one end of the fifth connecting rod is hinged to the fourth rotating rod. The middle part of the rod, the other end of which is hinged to the end of the second push block away from the fixed block, the fixed block slides through the first push block, the first push block and the second push block are collinearly arranged and the first push The side of the block facing the second spring steel sheet is provided with a slope, the slope is set away from the second push block, and the fixed block is slid to pass through a second push block for pushing the second spring steel sheet out of the buckle, so The sliding direction of the second pushing block is perpendicular to the sliding direction of the first pushing block, and the end of the second pushing block away from the second spring steel sheet abuts against the inclined surface, and the fixed block is provided for making the first pushing block The reset part of the block reset.

By adopting the above technical solution, turning the fifth rotating rod drives the fourth rotating rod to rotate through the conduction of the fourth connecting rod, and continues to drive the second pushing block to move through the conduction of the fifth connecting rod, thereby pushing the first pushing block to move, and because The first push block is provided with a slope, so while the first push block is moving, the second push block slides perpendicular to the sliding direction of the first push block due to the effect of the slope, and then the second spring steel sheet is pushed out of the buckle, which is convenient Disassembly of the light trough; reset the first push block through the reset member, preventing the first push block from being unable to reset due to its own gravity and hindering the subsequent installation of the light trough.

Optionally, the reset member includes two guide rods fixed on the fixed block, a reset spring sleeved on the guide rods, a blocking block fixed on the end of the guide rods, and two reset blocks slidingly sleeved on the guide rods , the two guide rods are located on both sides of the first push block, the two reset blocks are respectively fixed on both sides of the first push block, one end of the return spring is fixed to the fixed block, and the other end is fixed to the reset block.

By adopting the above technical solution, relying on the elastic force of the return spring to push the reset block to move along the guide rod, thereby driving the first push block to move, so that the first push block is reset.

Optionally, one side of the sealing plate located at the lower end of the support is hinged to the support, and a fixing plate is provided on the side away from the hinged side, the fixing plate is pierced with several fixing screws, and the fixing screws are threadedly connected to the bracket.

By adopting the above technical solution, by opening the sealing plate at the lower end of the bracket, it is convenient to maintain the inside of the box body, so that there is no need to disassemble the advertising board on the outer layer for maintenance.

Optionally, the sealing plate located at the lower end of the bracket is provided with several water leakage holes.

By adopting the above-mentioned technical solution, the water leakage hole reduces the accumulation of water due to reasons such as weather.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The two ends of the light trough are respectively fixed by the first clamping piece and the second clamping piece, so that the light trough can be detachably connected to the bracket, making the installation and disassembly of the light trough more convenient and quick. When the LED lamp in the box is damaged , it is convenient to maintain the LED lamp;

2. Turn the third rotating rod to drive the second rotating rod to rotate through the movement of the third connecting rod. When the second rotating rod rotates, it pulls the first rotating rod to rotate through the first connecting rod. The first rotating rod rotates through the movement of the second connecting rod. The conduction makes the first pushing block slide and move along the first guide sleeve, the first pushing block pushes the abutting block to move and pushes the locking block out of the first spring steel sheet, thereby facilitating the disassembly of the lamp trough;

3. Turn the fifth rotating rod to drive the fourth rotating rod to rotate through the conduction of the fourth connecting rod, and continue to drive the second pushing block to move through the conduction of the fifth connecting rod, thereby pushing the first pushing block to move, and because the first pushing block There is a slope, so when the first push block is moving, the second push block slides perpendicular to the sliding direction of the first push block due to the action of the slope, and then the second spring steel sheet is pushed out of the buckle, which facilitates the disassembly of the lamp trough ;

4. By opening the sealing plate at the lower end of the bracket, it is convenient to maintain the inside of the box, so that there is no need to disassemble the outer advertising board for maintenance, and the water leakage hole reduces the accumulation of water due to weather and other reasons.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of Embodiment 1 of the present application.

FIG. 2 is a schematic structural diagram of the first clamping member in Embodiment 1 of the present application.

FIG. 3 is a schematic structural diagram of a third rotating rod and a third connecting rod in Embodiment 1 of the present application.

FIG. 4 is a schematic structural diagram of a second clamping member in Embodiment 1 of the present application.

Fig. 5 is a schematic diagram of the structure of the lower end sealing plate and the water leakage hole in the first embodiment of the present application.

Fig. 6 is a schematic structural view of the third connecting rod and the fifth rotating rod in the second embodiment of the present application.

Explanation of reference signs:

1. Bracket; 2. Sealing plate; 3. Back plate; 4. Advertisement board; 5. Lamp groove; , inclined plate; 72, clamping block; 73, abutting block; 8, second clamping piece; 81, fixed block; 82, buckle; 821, clamping rod; 822, clamping block; 83, second spring Steel sheet; 9, reinforcing rib; 10, installation block; 11, roller; 12, limit block; 13, installation plate; 14, first rotating rod; 15, second rotating rod; 16, first connecting rod; 17 1, the first guide sleeve; 18, the first push block; 19, the second connecting rod; 20, the third rotating rod; 21, the third connecting rod; 22, the fourth rotating rod; 23, the fifth rotating rod; 24, The fourth connecting rod; 25, the second guide sleeve; 26, the second pushing block; 27, the fifth connecting rod; 28, the first pushing block; 29, the slope; 30, the second pushing block; 31, reset piece; 311 , guide rod; 312, back-moving spring; 313, blocking block; 314, reset block; 32, fixed plate; 33, fixing screw; 34, leakage hole.

Detailed ways

The present application will be described in further detail below in conjunction with accompanying drawings 1-6.

Embodiment one:

The embodiment of the present application discloses an advertising light box. Referring to FIG. 1, it includes a bracket 1, a sealing plate 2 arranged around the bracket 1, a back plate 3 welded to the bracket 1, and an advertising board 4 for carrying advertising information. Type lamp trough 5 and a number of lamp beads 6 arranged in the lamp trough 5, the advertising board 4 is an acrylic board or lamp cloth, the section of the lamp trough 5 is U-shaped and several lamp troughs 5 are arranged vertically. A first clip 7 is provided between the bracket 1 and the lamp trough 5, and the upper end of the lamp trough 5 is detachably mounted on the bracket 1 through the first clip 7; a second clip is provided between the bracket 1 and the lamp trough 5 8. The lower end of the lamp trough 5 is detachably mounted on the bracket 1 through the second clip 8 . When the lamp bead 6 in the lamp trough 5 is damaged, the lamp trough 5 can be quickly disassembled through the first clamping member 7 and the second clamping member 8, so as to facilitate maintenance of LED lamps and the like.

Referring to FIG. 2 , the first clamping member 7 includes a first spring steel sheet 71 fixed to the bracket 1 by screws, a clamping block 72 welded to the side of the lamp groove 5 away from the lamp bead 6 and an abutment block 73 , the first spring steel sheet The sheet 71 includes a bottom plate 711 and inclined plates 712 integrally formed at both ends of the bottom plate 711. The ends of the two inclined plates 712 facing away from the bottom plate 711 are arranged close to each other. Squeezed into between the sloping plate 712 and the bottom plate 711 , so that the locking block 72 is clamped in the first spring steel sheet 71 . The side of the clamping block 72 away from the first spring steel sheet 71 is welded with reinforcing ribs 9, and the reinforcing ribs 9 make the clamping block 72 more stable; the side of the inclined plate 712 towards the bottom plate 711 is fixed with the mounting block 10 by screws, and the mounting block 10 The end away from the bottom plate 711 is rollingly connected with a roller 11, so that when the block 72 squeezes in from the opening, the sliding friction becomes rolling friction, which is convenient for the block 72 to squeeze in; The side wall and the abutment platform make the upper end of the lamp trough 5 fixed, and when dismounting, apply force to the opposite direction to pull out the clamping block 72, which is very convenient for dismounting.

Referring to Figures 2 and 3, the abutment block 73 slides through the bottom plate 711, and both ends of the abutment block 73 are welded with limit blocks 12, and the limit block 12 limits the sliding distance of the abutment block 73 to prevent abutment Block 73 falls off from base plate 711; Support 1 is fixed with mounting plate 13 by screw, and mounting plate 13 is hinged with first rotating rod 14 and second rotating rod 15, and one end of first rotating rod 14 and second rotating rod 15 is hinged on installation Plate 13, a first connecting rod 16 is arranged between the first rotating rod 14 and the second rotating rod 15, one end of the first connecting rod 16 is hinged to the unhinged end of the first rotating rod 14, and the other end is hinged to the second rotating rod 14. On the side of the rod 15, the mounting plate 13 is welded with a first guide sleeve 17, and the first guide sleeve 17 slides through a first push block 18, the first push block 18 is coaxially arranged with the abutment block 73 and the first The push block 18 is in contact with the abutment block 73 . A second connecting rod 19 is arranged between the first rotating rod 14 and the pushing block. One end of the second connecting rod 19 is hinged to the middle part of the first rotating rod 14, and the other end is hinged to the end of the pushing block away from the abutting block 73. The mounting plate 13 is hinged with a third rotating rod 20, one end of the third rotating rod 20 is hinged on the mounting plate 13, a third connecting rod 21 is arranged between the second rotating rod 15 and the third rotating rod 20, and one end of the third connecting rod 21 It is hinged to the unhinged end of the second rotating rod 15 , and the other end is hinged to the middle part of the third rotating rod 20 . Rotate the unhinged end of the third rotating rod 20 downwards, and the third rotating rod 20 rotates to drive the third connecting rod 21 to move downwards so as to drive the second rotating rod 15 to rotate downwards. When the second rotating rod 15 rotates downwards, it passes The first connecting rod 16 pulls the first rotating rod 14 to rotate downward, and the first rotating rod 14 rotates downward through the conduction of the second connecting rod 19 so that the first push block 18 slides and presses down along the first guide sleeve 17. The pushing block 18 presses down to push the abutting block 73 to move and push the clamping block 72 out of the first spring steel sheet 71 , so as to facilitate the disassembly of the lamp groove 5 .

Referring to FIG. 4 , the second clip 8 includes a fixing block 81 fixed to the bracket 1 by screws, a buckle 82 welded to the end of the fixing block 81 facing the lamp trough 5 , and fixed to the side of the lamp trough 5 facing away from the lamp bead 6 by screws. The second spring steel sheet 83, the second spring steel sheet 83 is clamped on the buckle 82, the buckle 82 includes two clamping rods 821 welded to the fixed block 81 and integrally formed on the end of the clamping rod 821 away from the fixed block 81 The two clamping blocks 822 are arranged close to each other, and the second spring steel sheet 83 is engaged with the buckle 82, so that the lower end of the lamp trough 5 is fixed.

Referring to Fig. 4, the mounting plate 13 is hinged with the fourth rotating rod 22 and the fifth rotating rod 23, one end of the fourth rotating rod 22 and the fifth rotating rod 23 is hinged on the mounting plate 13, the fourth rotating rod 22 and the fifth rotating rod 23 is provided with a fourth connecting rod 24, one end of the fourth connecting rod 24 is hinged to the unhinged end of the fourth rotating rod 22, and the other end is hinged to the side of the fifth rotating rod 23, and the mounting plate 13 is provided with a second The guide sleeve 25, the second guide sleeve 25 slides through a second push block 26, a fifth connecting rod 27 is arranged between the second push block 26 and the fourth rotating rod 22, and one end of the fifth connecting rod 27 is hinged In the middle of the fourth rotating rod 22 , the other end is hinged to the end of the second pushing block 26 away from the fixing block 81 . The fixed block 81 slides and is provided with the first push block 28, the first push block 28 and the second push block 26 are collinearly arranged and the first push block 28 is provided with a slope 29 towards the side of the second spring steel sheet 83, the slope 29 is set away from the second push block 26, and the fixed block 81 slides through the second push block 30 for pushing the second spring steel sheet 83 out of the buckle 82. The sliding direction of the second push block 30 is the same as that of the first push block. The sliding direction of 28 is vertical, and one end of the second push block 30 away from the second spring steel sheet 83 abuts against the inclined surface 29; the fifth rotating rod 23 is turned downwards to drive the fourth rotating rod 22 through the conduction of the fourth connecting rod 24 to Rotate down, and continue to drive the second push block 26 to press down through the conduction of the fifth connecting rod 27, thereby pushing the first push block 28 to press down, and because the first push block 28 is provided with a slope 29, the first push block 28 is in the downward direction. While pressing, the second push block 30 slides perpendicular to the sliding direction of the first push block 28 due to the action of the slope 29, and then pushes the second spring steel sheet 83 out of the buckle 82, facilitating the disassembly of the lamp slot 5. The fixing block 81 is provided with a reset member 31 for resetting the first push block 28. After the lamp trough 5 is disassembled, the first push block 28 is reset by the reset member 31, preventing the first push block 28 from being hindered by its own gravity. Subsequent installation of the lamp trough 5.

Referring to Fig. 4, the reset member 31 includes two guide rods 311 welded to the upper end of the fixed block 81, a reset spring 312 sleeved on the guide rods 311, a blocking block 313 welded to the ends of the guide rods 311, and two sliding sleeves. On the reset block 314 of the guide rod 311, the two guide rods 311 are respectively located on both sides of the first push block 28, and the two reset blocks 314 are respectively welded on both sides of the first push block 28, and one end of the return spring 312 is welded to the fixed The other end of the block 81 is welded to the reset block 314. After the lamp trough 5 is removed, relying on the elastic force of the return spring 312, the first pushing block 28 moves upward along the guide rod 311 to complete the reset.

Referring to Fig. 5, one side of the cover plate 2 at the lower end of the bracket 1 is hinged to the bracket 1 through a hinge, and a fixed plate 32 is integrally formed on the side away from the handover side, so that the cover plate 2 at the lower end can be rotated, which is convenient for the LED from the lower end of the light box. The maintenance of the lamp does not need to remove the acrylic plate or lamp cloth outside the light box, and the maintenance process is more convenient and fast; the fixing plate 32 is pierced with a number of fixing screws 33, and the fixing screws 33 are threadedly connected to the bracket 1 and located at the bracket 1, so that the fixing plate 32 can be fixed. fixed. The sealing plate 2 at the lower end is provided with some water leakage holes 34 to reduce the accumulation of water in the casing due to reasons such as weather.

The implementation principle of the embodiment of the present application is: open the sealing plate 2 located at the lower end of the bracket 1, turn the fifth rotating rod 23 to drive the fourth rotating rod 22 to rotate through the conduction of the fourth connecting rod 24, and continue to rotate through the conduction of the fifth connecting rod 27. Drive the second push piece 26 to move, thereby promote the first push piece 28 to move, and because the first push piece 28 is provided with the slope 29, so the first push piece 28 is moving, the second push piece 30 is due to the effect of the slope 29 Slide perpendicular to the sliding direction of the first push block 28, and then push the second spring steel sheet 83 out of the buckle 82, so that the lower end of the lamp groove 5 is disassembled; The second rotating rod 15 rotates, and when the second rotating rod 15 rotates, the first rotating rod 14 is pulled by the first connecting rod 16 to rotate, and the first rotating rod 14 rotates through the conduction of the second connecting rod 19 to make the first push block 18 move along The first guide sleeve 17 slides and moves, the first pushing block 18 pushes the abutting block 73 to move and pushes the clamping block 72 out of the first spring steel sheet 71, so that the upper end of the lamp trough 5 is disassembled, thereby disassembling the entire lamp trough 5, It is convenient for subsequent maintenance.

Embodiment two:

Referring to Fig. 2, Fig. 4 and Fig. 6, the difference between the present embodiment and the embodiment is that: the fifth rotating rod 23 is hinged to the third connecting rod 21 at one end which is away from the hinged mounting plate 13, and the third rotating rod 20 is rotated at the same time Drive the second rotating rod 15 and the fifth rotating rod 23 to rotate, the length of the second pushing block 26 is greater than the length of the first pushing block 18, so that the second spring steel sheet 83 is first pushed out of the buckle 82, and the second spring steel After the sheet 83 is pushed out of the buckle 82, continue to rotate the third rotating lever 20, so that the block 72 is pushed out of the first spring steel sheet 71, thereby disassembling the upper and lower ends of the lamp groove 5 successively.

All of the above are preferred embodiments of the application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made according to the structure, shape, and principle of the application should be covered by the protection scope of the application. Inside.

Claims (9)

1. An advertising light box, comprising a bracket (1), a sealing plate (2) arranged around the bracket (1), a backboard (3) arranged on the bracket (1), an advertising board (4) for carrying advertising information ), a lamp trough (5) and a number of lamp beads (6) arranged in the lamp trough (5), characterized in that a first clip (7) is arranged between the bracket (1) and the lamp trough (5) ), one end of the lamp trough (5) is detachably mounted on the bracket (1) through the first clamping piece (7), and a second clamping piece ( 8), the other end of the lamp trough (5) is detachably mounted on the bracket (1) through the second clip (8). 2. An advertising light box according to claim 1, characterized in that: the first clip (7) includes a first spring steel sheet (71) fixed to the bracket (1), fixed to the light groove ( 5) The clamping block (72) and the abutment block (73) on the side away from the lamp bead (6), the first spring steel sheet (71) includes the bottom plate (711) and the inclined plates respectively arranged at both ends of the bottom plate (711). plate (712), the ends of the two inclined plates (712) away from the bottom plate (711) are arranged close to each other, and the side of the block (72) away from the first spring steel sheet (71) is provided with reinforcing ribs (9 ). 3. An advertising light box according to claim 2, characterized in that: a mounting block (10) is fixed on the side of the two inclined plates (712) facing the bottom plate (711), and the mounting block (10) One end away from the bottom plate (711) is rotatably connected with a roller (11). 4. An advertising light box according to claim 3, characterized in that: the second clip (8) includes a fixed block (81) fixed to the bracket (1), fixed to the fixed block (81) toward The buckle (82) at one end of the lamp trough (5) and the second spring steel sheet (83) fixed on the side of the lamp trough (5) away from the lamp bead (6), the second spring steel sheet (83) snaps In the buckle (82), the buckle (82) includes two clamping rods (821) fixed on the fixed block (81) and a clamping rod fixed on the end of the clamping rod (821) away from the fixed block (81). block (822), two clamping blocks (822) are arranged close to each other. 5. An advertising light box according to claim 4, characterized in that: the abutment block (73) slides through the bottom plate (711), and both ends of the abutment block (73) are provided with limited A block (12), the bracket (1) is fixed with a mounting plate (13), and the mounting plate (13) is hinged with a first rotating rod (14) and a second rotating rod (15), the first rotating One end of the rod (14) and the second rotating rod (15) is hinged to the mounting plate (13), and a first connecting rod (16) is arranged between the first rotating rod (14) and the second rotating rod (15) , one end of the first connecting rod (16) is hinged to the unhinged end of the first rotating rod (14), and the other end is hinged to the side of the second rotating rod (15), and the mounting plate (13) is provided with The first guide sleeve (17), the first push block (18) slides through the first guide sleeve (17), and the first push block (18) is coaxially arranged with the abutment block (73) And the first push block (18) is in contact with the abutment block (73), and a second connecting rod (19) is arranged between the first rotating rod (14) and the pushing block, and the second connecting rod (19) One end of one end is hinged to the middle part of the first rotating rod (14), and the other end is hinged to the end of the pushing block away from the abutment block (73). The mounting plate (13) is hinged with a third rotating rod (20), and the third One end of the rotating rod (20) is hinged to the mounting plate (13), and a third connecting rod (21) is arranged between the second rotating rod (15) and the third rotating rod (20), and the third connecting rod (21 ) is hinged to the unhinged end of the second rotating rod (15), and the other end is hinged to the middle part of the third rotating rod (20). 6. An advertising light box according to claim 5, characterized in that: said mounting plate (13) is hinged with a fourth rotating rod (22) and a fifth rotating rod (23), said fourth rotating rod ( 22) and one end of the fifth rotating rod (23) is hinged to the mounting plate (13), and a fourth connecting rod (24) is arranged between the fourth rotating rod (22) and the fifth rotating rod (23), so One end of the fourth connecting rod (24) is hinged to the unhinged end of the fourth rotating rod (22), and the other end is hinged to the side of the fifth rotating rod (23), and the mounting plate (13) is provided with a second The guide sleeve (25), the second push block (26) slides through the inside of the second guide sleeve (25), and the second push block (26) and the fourth rotating rod (22) are provided with The fifth connecting rod (27), one end of the fifth connecting rod (27) is hinged to the middle part of the fourth rotating rod (22), and the other end is hinged to the end of the second pushing block (26) away from the fixed block (81) , the fixed block (81) slides through a first push block (28), the first push block (28) is arranged in line with the second push block (26) and the first push block (28) faces One side of the second spring steel sheet (83) is provided with an inclined surface (29), and the inclined surface (29) is set away from the second push block (26), and the fixed block (81) slides through the second The spring steel sheet (83) pushes out the second pushing block (30) of the buckle (82), the sliding direction of the second pushing block (30) is perpendicular to the sliding direction of the first pushing block (28), and the One end of the second push block (30) away from the second spring steel sheet (83) abuts against the inclined surface (29), and the fixed block (81) is provided with a reset member (31) for resetting the first push block (28) ). 7. An advertising light box according to claim 6, characterized in that: the reset member (31) includes two guide rods (311) fixed to the fixed block (81), sleeved on the guide rods (311) Back-moving spring (312), the block block (313) that is fixed on guide rod (311) end and two reset blocks (314) that sliding sleeve is set in guide rod (311), two described guide rods (311 ) is located on both sides of the first push block (28), and two reset blocks (314) are respectively fixed on both sides of the first push block (28), and one end of the return spring (312) is fixed on the fixed block (81 ), the other end is fixed on the reset block (314). 8. An advertising light box according to claim 4, characterized in that: one side of the sealing plate (2) located at the lower end of the support (1) is hinged to the support (1), and the side away from the hinged side is provided with A fixing plate (32), the fixing plate (32) is perforated with a number of fixing screws (33), and the fixing screws (33) are threadedly connected to the bracket (1). 9. An advertising light box according to claim 8, characterized in that: the sealing plate (2) located at the lower end of the support (1) is provided with several water leakage holes (34).

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