CN110599927A - Rain-proof political affairs propaganda board of thinking that steeps - Google Patents

Abstract

The invention discloses a rain-proof ideological and political propaganda column, which relates to the technical field of propaganda columns, comprising: a propaganda frame, a display board is arranged inside, and a disassembly mechanism is arranged between both sides of the propaganda frame and the display board. The front of the display board is provided with a cleaning mechanism, and the rear side of the display board is provided with a power mechanism, which drives the cleaning mechanism to reciprocate left and right; There is a turning slot on the upper side of the seat, and a turntable is arranged in the turning slot, and the turntable is connected with the lower surface of the publicity frame, and a mounting seat is arranged under the fixing seat, and a mounting slot is opened at the lower end of the mounting seat. A fixed column is installed in the installation groove, and a fixing mechanism is arranged between the fixed column and the two sides of the mounting seat; the bulletin board is convenient for adjusting the display direction and angle of the display board, facilitating the disassembly and replacement of various components, and can also automatically clear the display Rain stains or dust on the board.

Description

A rain-proof ideological and political propaganda column

technical field

The invention belongs to the technical field of bulletin boards, and more specifically relates to a rain-proof ideological and political bulletin board.

Background technique

The ideological and political propaganda column plays an extremely important role in carrying out ideological and political education and publicity. of viewing. The existing ideological and political bulletin boards can only be rotated or fixed in one direction, and the replacement of the display boards often requires opening and replacing the bulletin boards, which is cumbersome and takes a long time. Moreover, most ideological and political propaganda columns are difficult to use indoors and outdoors. For ideological and political propaganda columns placed outdoors for a long time, due to the sun and rain, it is easy to form rain stains or stains that are difficult to remove on the display board of the ideological and political propaganda column. The propaganda content in the ideological and political propaganda column brings a lot of inconvenience.

Contents of the invention

The purpose of the present invention is to address the defects of the existing technology, to provide a rain-proof ideological and political propaganda column, which can realize horizontal and vertical multi-angle rotation and flip, adapt to various use conditions, and can conveniently and quickly replace the display board. It has the function of automatically removing rain stains to keep the display board clean and improve the publicity effect.

In order to achieve the above object, the present invention provides a rain-proof ideological and political propaganda column, which includes:

A publicity frame, a display board is provided inside the publicity frame, a disassembly mechanism is provided between both sides of the publicity frame and the display board, a cleaning mechanism is provided in front of the display board, and a power mechanism is provided at the rear of the display board, The power mechanism drives the cleaning mechanism to reciprocate left and right;

An adjustment mechanism, the adjustment mechanism is arranged below the propaganda frame, the adjustment mechanism includes a fixed seat, the upper side of the fixed seat is provided with a rotating groove, and a turntable is arranged in the turning groove, and the turntable and the lower surface of the propaganda frame A mounting seat is provided under the fixing seat, a mounting groove is opened at the lower end of the mounting seat, a fixing column is installed in the mounting groove, and a fixing mechanism is provided between the fixing column and both sides of the mounting seat.

Optionally, the dismounting mechanism includes a clamping plate installed on both sides of the display board, and a screw is welded on the outside of the clamping plate, and the screw passes through the threaded holes arranged on both sides of the promotional frame, and the outside of the screw The end is equipped with a rotating block.

Optionally, the cleaning mechanism includes a moving plate arranged above the publicity frame, a chute is opened on the upper side of the publicity frame, and the slider connected to the lower side of the moving plate is connected with the chute, and the moving plate A connecting block is connected to one side, and a mounting plate is installed under the connecting block. The mounting plate is provided with a placement groove near the side of the display board. A cleaning board is installed in the placement groove, and the cleaning board and the surface of the display board contact, the cleaning plate is connected to the mounting plate through a spring clamping mechanism, and the other side of the moving plate is connected to a connecting plate.

Optionally, the spring holding mechanism includes a spring slot opened on the inner wall of the placement slot, a first spring is arranged in the spring slot, and a clamping block is connected to one end of the first spring, and the clamping block and the spring The groove is slidably matched and in contact with the cleaning plate, and a pull rod is arranged on one side of the clamping block, and the pull rod is passed through an opening on one side of the placement groove.

Optionally, the size of the opening is larger than the size of the pull rod, and the pull rod can slide in the opening.

Optionally, the power mechanism includes a servo motor arranged behind the promotional frame, a second bevel gear is connected to the output shaft of the servo motor, and the second bevel gear cooperates with the first bevel gear for transmission. One side of the bevel gear is connected with a first sprocket, and the first sprocket is connected with the second sprocket through a chain. The first sprocket and the second sprocket are installed behind the propaganda frame. Drive the connecting plate to move.

Optionally, the control mechanism includes a fixed piece arranged on the upper and lower sides of the chain behind the connecting plate, a sliding hole is opened on the fixed piece, a sliding bar is installed in the sliding hole, and a moving piece is connected to one end of the sliding bar , a fixed trapezoidal block is installed on one side of the moving piece, a compression spring is set on the outside of the slide bar between the fixed piece and the moving piece, a moving trapezoidal block is connected to the outside of the chain, and the moving trapezoidal block is connected to the fixed Compatible with trapezoidal blocks.

Optionally, the fixing mechanism includes rotating bases installed on both sides of the fixing column, the rotating bases are installed in rotating holes on both sides of the mounting base, and the inner wall of the rotating hole is provided with a plurality of bayonets. Both sides of the rotating seat are provided with grooves, and blocks are installed in the grooves, and a connecting hole is opened in the middle of the sides of the grooves close to each other, and two moving rods are installed in the connecting holes. The two moving rods are provided with racks, and a gear is arranged between the two moving rods, and one side of the gear is connected with a rotating rod, and the rotating rod runs through the rotating seat and the control block arranged outside the rotating seat connected.

Optionally, the block fits both the groove and the bayonet, one end of the moving rod is connected to the block, and the control block is rotatably engaged with the rotating seat.

Optionally, a second spring is provided in the groove, and the second spring is sleeved and installed on the moving rod. One end of the second spring is in contact with the locking block and the other end is in contact with the bottom of the groove.

The anti-rain stain ideological and political propaganda column provided by the present invention has the beneficial effects that: the setting of the turntable can adjust the direction of the propaganda column by rotating, and the setting of the adjustment mechanism can adjust the angle of the propaganda column, which is flexible and convenient to use; The setting can improve the replacement efficiency of the display board in the bulletin board, and the replacement is simple and easy to operate; the power mechanism controls the horizontal reciprocating movement of the cleaning mechanism through the control mechanism, and can automatically clean the rain stains and dust on the display board to ensure the display effect of the display board .

Other features and advantages of the present invention will be described in detail in the detailed description that follows.

Description of drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing the exemplary embodiments of the present invention in more detail with reference to the accompanying drawings, wherein, in the exemplary embodiments of the present invention, the same reference numerals generally represent same parts.

Fig. 1 shows a schematic structural diagram of a front view of an ideological and political propaganda column for preventing rain stains according to an embodiment of the present invention.

Fig. 2 shows a schematic structural diagram of a cleaning mechanism for a rain-proof ideological and political propaganda column according to an embodiment of the present invention.

Fig. 3 shows a schematic rear view structural view of a rain-proof ideological and political propaganda column according to an embodiment of the present invention.

Fig. 4 shows a schematic diagram of the enlarged structure at A of an ideological and political propaganda column for preventing rain stains according to an embodiment of the present invention.

Fig. 5 shows a schematic diagram of the enlarged structure at B of an ideological and political propaganda column for preventing rain stains according to an embodiment of the present invention.

Fig. 6 shows a schematic diagram of an enlarged structure at point C of an ideological and political propaganda column for preventing rain stains according to an embodiment of the present invention.

Explanation of reference signs:

1. Fixed seat; 2. Mounting seat; 3. Mounting groove; 4. Fixed column; 5. Propaganda frame; 6. Display board; 7. Mobile board; 8. Connection block; 9. Mounting board; 11, cleaning plate; 12, connecting plate; 13, fixed piece; 14, slide bar; 15, moving piece; 16, fixed trapezoidal block; 17, sprocket wheel; 18, chain; 19, moving trapezoidal block; 20, the first Bevel gear; 21, servo motor; 22, second bevel gear; 23, clamping plate; 24, rotating block; 25, rotating seat; 26, groove; 27, block; 28, moving rod; 29, gear; 30. Control block; 31. Clamping block; 32. Pull rod; 33. Turntable; 34. Disassembly mechanism; 35. Cleaning mechanism; 36. Power mechanism; 37. Rotation groove; 38. Fixing mechanism; 39. Screw rod; 40. Spring clamping mechanism; 41, spring groove; 42, first spring; 43, opening; 44, second sprocket wheel; 45, control mechanism; 46, compression spring; 47, rotation hole; 48, bayonet; 49, rotation Rod; 50, the second spring.

Detailed ways

Preferred embodiments of the present invention will be described in more detail below. Although preferred embodiments of the present invention are described below, it should be understood that the present invention can be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The invention provides an ideological and political publicity column for preventing rain stains, which includes:

A publicity frame, a display board is provided inside the publicity frame, a disassembly mechanism is provided between both sides of the publicity frame and the display board, a cleaning mechanism is provided in front of the display board, and a power mechanism is provided at the rear of the display board, The power mechanism drives the cleaning mechanism to reciprocate left and right;

The disassembly mechanism can easily remove or install the display board from the promotional frame to facilitate the replacement of the display board. The cleaning mechanism reciprocates left and right under the drive of the power mechanism to clean the rain stains or dust on the surface of the display board and keep the display board clean. ;

An adjustment mechanism, the adjustment mechanism is arranged below the propaganda frame, the adjustment mechanism includes a fixed seat, the upper side of the fixed seat is provided with a rotating groove, and a turntable is arranged in the turning groove, and the turntable and the lower surface of the propaganda frame A mounting seat is provided under the fixing seat, a mounting groove is opened at the lower end of the mounting seat, a fixing column is installed in the mounting groove, and a fixing mechanism is provided between the fixing column and both sides of the mounting seat.

The direction of the publicity frame and the display board can be adjusted by rotating the turntable on the fixing seat, and the angle of the publicity frame and the display board can be adjusted and fixed by the fixing mechanism on the mounting seat to meet the use of different heights and angles.

Optionally, the dismounting mechanism includes a clamping plate installed on both sides of the display board, and a screw is welded on the outside of the clamping plate, and the screw passes through the threaded holes arranged on both sides of the promotional frame, and the outside of the screw The end is equipped with a rotating block.

Rotating the rotating block drives the screw rod to rotate in the threaded hole, and then drives the movement of the clamping plate to realize the fixing of the display plate.

Optionally, the cleaning mechanism includes a moving plate arranged above the publicity frame, a chute is opened on the upper side of the publicity frame, and the slider connected to the lower side of the moving plate is connected with the chute, and the moving plate A connecting block is connected to one side, and a mounting plate is installed under the connecting block. The mounting plate is provided with a placement groove near the side of the display board. A cleaning board is installed in the placement groove, and the cleaning board and the surface of the display board contact, the cleaning plate is connected to the mounting plate through a spring clamping mechanism, and the other side of the moving plate is connected to a connecting plate.

The connection plate is connected with the power mechanism, and the movement of the connection plate drives the moving plate and the connection block to move, and then drives the installation plate and the cleaning plate in the installation plate to move on the surface of the display board, cleaning the rain stains and dust on the display board, spring clips The holding mechanism can realize the fixing of the cleaning plate, and facilitate the disassembly of the cleaning plate, so as to replace or clean the cleaning plate.

Optionally, the spring holding mechanism includes a spring slot opened on the inner wall of the placement slot, a first spring is arranged in the spring slot, and a clamping block is connected to one end of the first spring, and the clamping block and the spring The groove is slidably matched and in contact with the cleaning plate, and a pull rod is arranged on one side of the clamping block, and the pull rod is passed through an opening on one side of the placement groove.

Optionally, the size of the opening is larger than the size of the pull rod, and the pull rod can slide in the opening.

By pulling the pull rod to slide in the opening, the clamping block and the first spring are driven to move in the spring groove, and the cleaning plate can be easily disassembled.

Optionally, the power mechanism includes a servo motor arranged behind the promotional frame, a second bevel gear is connected to the output shaft of the servo motor, and the second bevel gear cooperates with the first bevel gear for transmission. One side of the bevel gear is connected with a first sprocket, and the first sprocket is connected with the second sprocket through a chain. The first sprocket and the second sprocket are installed behind the propaganda frame. Drive the connecting plate to move.

Optionally, the control mechanism includes a fixed piece arranged on the upper and lower sides of the chain behind the connecting plate, a sliding hole is opened on the fixed piece, a sliding bar is installed in the sliding hole, and a moving piece is connected to one end of the sliding bar , a fixed trapezoidal block is installed on one side of the moving piece, a compression spring is set on the outside of the slide bar between the fixed piece and the moving piece, a moving trapezoidal block is connected to the outside of the chain, and the moving trapezoidal block is connected to the fixed Compatible with trapezoidal blocks.

The rotation of the servo motor drives the transmission of the first and second bevel gears, and then drives the first sprocket to rotate, and the first sprocket and the second sprocket drive the moving trapezoidal block fixed on the chain to move through the chain transmission, and the moving trapezoidal block is at The fixed trapezoidal block cooperates, and the connecting plate and the cleaning mechanism are driven to reciprocate left and right through the fixed trapezoidal block, and then the cleaning of the display board is completed.

Optionally, the fixing mechanism includes rotating bases installed on both sides of the fixing column, the rotating bases are installed in rotating holes on both sides of the mounting base, and the inner wall of the rotating hole is provided with a plurality of bayonets. Both sides of the rotating seat are provided with grooves, and blocks are installed in the grooves, and a connecting hole is opened in the middle of the sides of the grooves close to each other, and two moving rods are installed in the connecting holes. The two moving rods are provided with racks, and a gear is arranged between the two moving rods, and one side of the gear is connected with a rotating rod, and the rotating rod runs through the rotating seat and the control block arranged outside the rotating seat connected.

Optionally, the block fits both the groove and the bayonet, one end of the moving rod is connected to the block, and the control block is rotatably engaged with the rotating seat.

Optionally, a second spring is provided in the groove, and the second spring is sleeved and installed on the moving rod. One end of the second spring is in contact with the locking block and the other end is in contact with the bottom of the groove.

Turning the control block drives the rotating rod to rotate, the rotating rod drives the gear to rotate, and the cooperation between the gear and the rack drives the two moving rods to move, and the moving rod drives the corresponding block to slide out of the bayonet and press the second spring to cancel The rotating seat is fixed in the rotating hole, and the fixed column is passively rotated in the installation groove to realize the angle adjustment of the propaganda frame and the display board. After the adjustment is completed, the control block is released, and due to the elastic action of the second spring, the block slides into the next card. In the mouth, the fixing of the rotating seat in the rotating hole is realized.

Example

As shown in Figures 1 to 6, the present invention provides a rain-proof ideological and political propaganda column, which includes:

A publicity frame 5, a display board 6 is arranged inside the publicity frame 5, a dismounting mechanism 34 is provided between both sides of the publicity frame 5 and the display board 6, a cleaning mechanism 35 is provided in front of the display board 6, and the display A power mechanism 36 is arranged on the rear side of the plate 6, and the power mechanism 36 drives the cleaning mechanism 35 to reciprocate left and right;

An adjustment mechanism, the adjustment mechanism is arranged below the publicity frame 5, the adjustment mechanism includes a fixed seat 1, the upper side of the fixed seat 1 is provided with a rotating groove 37, and a turntable 33 is arranged in the rotating groove 37, and the The turntable 33 is connected with the lower surface of the propaganda frame 5, and the mounting seat 2 is arranged below the fixed seat 1, and the lower end of the mounting seat 2 is provided with a mounting groove 3, and a fixing column 4 is installed in the mounting groove 3, and the fixing column 4 is installed in the mounting groove 3. A fixing mechanism 38 is provided between the column 4 and both sides of the mounting seat 2 .

In this embodiment, the dismounting mechanism 34 includes clamping plates 23 installed on both sides of the display board 6 , the outside of the clamping plate 23 is welded with a screw 39 , and the screw 39 penetrates through the two sides of the promotional frame 5 In the threaded hole of the screw, a rotating block 24 is installed at the outer end of the screw.

In this embodiment, the cleaning mechanism 35 includes a moving plate 7 arranged above the publicity frame 5, a chute is provided on the upper side of the publicity frame 5, and a slider connected to the lower side of the moving plate 7 cooperates with the chute. One side of the moving plate 7 is connected with a connecting block 8, and a mounting plate 9 is installed on the bottom of the connecting block 8. The mounting plate 9 is provided with a placement groove 10 near the side of the display board 6. The placement groove 10 is installed with a cleaning board 11, the cleaning board 11 is in contact with the surface of the display board 6, the cleaning board 11 is connected with the installation board 9 through the spring clamping mechanism 40, and the other side of the moving board 7 is connected with a connecting board 12.

In this embodiment, the spring holding mechanism 40 includes a spring slot 41 opened on the inner wall of the placement slot 10, a first spring 42 is arranged in the spring slot 41, and a clamping block is connected to one end of the first spring 42. 31, the clamping block 31 is slidingly fitted with the spring groove 41 and is in contact with the cleaning plate 11, a pull rod 32 is provided on one side of the clamping block 31, and the pull rod 32 is passed through the opening 43 on one side of the placement groove 10 Inside.

In this embodiment, the size of the opening 43 is larger than that of the pull rod 32 , and the pull rod 32 can slide in the opening 43 .

In this embodiment, the power mechanism 36 includes a servo motor 21 arranged behind the propaganda frame 5, the output shaft of the servo motor 21 is connected with a second bevel gear 22, and the second bevel gear 22 is connected to the first bevel gear. Gear 20 cooperates transmission, and described second bevel gear 22 side is connected with first sprocket 17, and described first sprocket 17 is connected with second sprocket 44 by chain 18, and described first sprocket 17 and second The sprocket 44 is installed at the rear of the publicity frame 5, and the chain 18 drives the connecting plate 12 to move through the control mechanism 45.

In this embodiment, the control mechanism 45 includes a fixed piece 13 arranged on the upper and lower sides of the chain 18 behind the connecting plate 12, the fixed piece 13 is provided with a slide hole, and a slide bar 14 is installed in the slide hole. One end of the slide bar 14 is connected with a moving piece 15, and a fixed trapezoidal block 16 is installed on one side of the moving piece. A moving trapezoidal block 19 is connected to the outside of the chain 18 , and the moving trapezoidal block 19 is adapted to the fixed trapezoidal block 16 .

In this embodiment, the fixing mechanism 38 includes a rotating seat 25 installed on both sides of the fixing column 4, and the rotating seat 25 is rotatably installed in the rotating holes 47 provided on both sides of the mounting seat 2. The rotating holes 47 The inner wall is provided with a plurality of bayonet sockets 48, both sides of the rotating base 25 are provided with grooves 26, and a block 27 is installed in the grooves 26, and a groove 26 is provided in the middle of the sides of the grooves 26 that are close to each other. Connecting holes, two moving rods 28 are installed in the connecting holes, racks are all arranged on the two moving rods 28, a gear 29 is arranged between the two moving rods 28, and one side of the gear is connected with A rotating rod 49 , the rotating rod 49 passes through the rotating base 25 and is connected to the control block 30 arranged outside the rotating base 25 .

In this embodiment, the clamping block 27 is adapted to both the groove 26 and the bayonet socket 27 , one end of the moving rod 28 is connected to the clamping block 27 , and the control block 30 is rotatably engaged with the rotating seat 25 .

In this embodiment, a second spring 50 is provided in the groove 26, and the second spring 50 is fitted on the moving rod 28. One end of the second spring 50 is in contact with the block 27 and the other end is in contact with the locking block 27. contact with the bottom of the groove 26 .

To sum up, when the anti-rain stain ideological and political propaganda column provided by the present invention is used, the fixed column 4 is fixed at a suitable propaganda position, the propaganda frame 5 is rotated, and the directions of the propaganda frame 5 and the display board 6 are adjusted through the turntable 33 . The rotation control block 30 drives the rotation rod 49 and the gear 29 to rotate, and the cooperation between the gear 29 and the racks on the two travel rods 28 drives the two travel rods 28 to move in the opposite direction, and the travel rod 28 drives the corresponding block 27 to slide Out of the bayonet 48 and press the second spring 50, the fixing of the rotating seat 25 in the rotating hole 47 is canceled at this time, and the propaganda frame 5 can be rotated to adjust the angle of the propaganda frame 5 and the display board 6, and the control block is released after the adjustment is completed 30, under the elasticity of the second spring 50, the block 27 slides into the next bayonet 48, the position of the rotating seat 25 in the rotating hole 47 can be fixed, and the orientation and angle of the propaganda frame 5 and the display board 6 can be completed. adjust.

Rotating block 24 screw rod 39 rotates in the threaded hole on the publicity frame 5, and then drives clamping plate 23 to move, and clamping plate 23 can clamp and fix or cancel fixing to display board 6, facilitates the replacement of display board 6. When rain stains or dust appear on the surface of the display board 6 during use, start the servo motor 21, the servo motor 21 drives the second bevel gear 22 to rotate, and drives the first sprocket through the transmission of the second bevel gear and the first bevel gear 20 17 rotates, and first sprocket wheel 17 drives second sprocket wheel 44 to rotate and realizes transmission by chain 18, and chain 18 drives mobile trapezoidal block 19 to move, and mobile trapezoidal block 19 is compatible with fixed trapezoidal block 16, promotes fixed trapezoidal block 16 to move, The fixed trapezoidal block 16 is fixed on the connecting plate 12, and then can drive the cleaning mechanism 35 to move, and the cleaning plate 11 installed in the placement groove 10 of the mounting plate 9 moves on the surface of the display plate 6 to clean up the rain stains on the display plate 6 surface or dust. When the connecting plate 12 moves to one end and cannot continue to move, the moving trapezoidal block 19 continues to move and squeeze the fixed trapezoidal block 16, the fixed trapezoidal block 16 drives the moving piece 15 to move, and the moving piece 15 drives the slide bar 14 to slide and squeeze in the slide hole. Compression spring 46 moves to the bottom by moving trapezoidal block 19 and drives another fixed trapezoidal block 16 to move in the opposite direction, so that the left and right reciprocating movement of cleaning mechanism 35 on the display board 6 surface is realized, and the effect of cleaning display board 6 is achieved. When the cleaning plate 11 needs to be cleaned or replaced, turn the mounting plate 9, the mounting plate 9 drives the cleaning plate 11 to rotate, pull the two pull rods 32, the pull rods 32 slide in the opening 43 and drive the corresponding clamping block 31 to move in the spring groove 41 And press the first spring 42, now the cleaning plate 11 can be taken out from the placement tank 10 for cleaning or replacement, and the operation is very convenient. The present invention is reasonable in structure, easy to operate, not only convenient to disassemble and replace, but also convenient to adjust the display direction and angle of the display board 6, and can automatically remove rain stains or dust on the display board 6.

Having described various embodiments of the present invention, the foregoing description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and alterations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims (10)

1. The utility model provides a rain-proof political affairs publicity column of thinking that steeps which characterized in that, this publicity column includes:

the display device comprises a propaganda frame (5), wherein a display board (6) is arranged in the propaganda frame (5), a dismounting mechanism (34) is arranged between two sides of the propaganda frame (5) and the display board (6), a cleaning mechanism (35) is arranged in front of the display board (6), a power mechanism (36) is arranged at the rear side of the display board (6), and the power mechanism (36) drives the cleaning mechanism (35) to reciprocate left and right;

adjustment mechanism, adjustment mechanism sets up in the below of propaganda frame (5), adjustment mechanism includes fixing base (1), rotation groove (37) have been seted up to fixing base (1) upside, be provided with carousel (33) in rotation groove (37), carousel (33) are connected with propaganda frame (5) lower surface, fixing base (1) below is provided with mount pad (2), mounting groove (3) have been seted up to mount pad (2) lower extreme, install fixed column (4) in mounting groove (3), be provided with fixed establishment (38) between fixed column (4) and mount pad (2) both sides.

2. The rain-proof think political affairs publicity column of claim 1, characterized in that, the disassembly body (34) is including installing grip block (23) in show board (6) both sides, the welding of grip block (23) outside has screw rod (39), screw rod (39) run through in the screwed hole of setting in publicity frame (5) both sides, turning block (24) are installed to the screw rod outer end.

3. A rain-damage-proof political billboard according to claim 1, characterized in that the cleaning mechanism (35) comprises a moving plate (7) arranged above the poster frame (5), the upper side of the propaganda frame (5) is provided with a sliding groove, a sliding block connected with the lower side of the moving plate (7) is matched and connected with the sliding groove, one side of the moving plate (7) is connected with a connecting block (8), an installation plate (9) is rotatably installed below the connecting block (8), a placing groove (10) is arranged on one side of the mounting plate (9) close to the display plate (6), a cleaning plate (11) is arranged in the placing groove (10), the cleaning plate (11) is in surface contact with the display plate (6), the cleaning plate (11) is connected with the mounting plate (9) through a spring clamping mechanism (40), and the other side of the moving plate (7) is connected with a connecting plate (12).

4. The rain-proof think political affairs publicity column of claim 3, characterized in that, spring adds holding mechanism (40) includes the spring groove (41) of seting up on the inner wall of standing groove (10), be provided with first spring (42) in spring groove (41), first spring (42) one end is connected with grip block (31), grip block (31) and spring groove (41) sliding fit and contact with clearance board (11), grip block (31) one side is provided with pull rod (32), pull rod (32) wear to locate in opening (43) of standing groove (10) one side.

5. A rain-damage-proof political bulletin board as claimed in claim 4, wherein the size of said opening (43) is larger than the size of the pull rod (32), said pull rod (32) being slidable within the opening (43).

6. The rain-stain-proof think political publicity column of claim 1, characterized in that, power unit (36) is including setting up servo motor (21) at publicity frame (5) rear, be connected with second bevel gear (22) on servo motor (21) output shaft, second bevel gear (22) and first bevel gear (20) cooperation transmission, second bevel gear (22) one side is connected with first sprocket (17), first sprocket (17) links to each other with second sprocket (44) through chain (18), the rear at publicity frame (5) is installed to first sprocket (17) and second sprocket (44), chain (18) drive connecting plate (12) through control mechanism (45) and move.

7. The rain-stain-proof think political affairs publicity column of claim 6, characterized in that, control mechanism (45) is including setting up stationary blade (13) in both sides about connecting plate (12) rear chain (18), the slotted hole has been seted up on stationary blade (13), install slide bar (14) in the slotted hole, slide bar (14) one end is connected with and removes piece (15), remove piece one side and install fixed trapezoidal piece (16), it is equipped with pressure spring (46) to overlap in slide bar (14) outside between stationary blade (13) and removal piece (15), the outside of chain (18) is connected with and removes trapezoidal piece (19), remove trapezoidal piece (19) and fixed trapezoidal piece (16) looks adaptation.

8. The rain-proof political billboard according to claim 1, characterized in that the fixing means (38) comprise a rotating seat (25) mounted on both sides of a fixed column (4), the rotating seat (25) is rotatably arranged in rotating holes (47) arranged at two sides of the mounting seat (2), a plurality of bayonets (48) are arranged on the inner wall of the rotating hole (47), grooves (26) are respectively arranged on the two sides of the rotating seat (25), a clamping block (27) is arranged in the groove (26), a connecting hole is arranged in the middle of one side of the groove (26) close to each other, two moving rods (28) are arranged in the connecting hole, racks are arranged on the two moving rods (28), a gear (29) is arranged between the two moving rods (28), one side of gear is connected with dwang (49), dwang (49) run through and rotate seat (25) and be connected with control block (30) that set up in rotating seat (25) outside.

9. A rain-proof political billboard as claimed in claim 8, in which the said block (27) is adapted to both the groove (26) and the bayonet (27), the said moving rod (28) is connected at one end to the block (27), and the said control block (30) is rotatably fitted to the said rotary base (25).

10. The rain-proof political thought bulletin board of claim 9, wherein, a second spring (50) is arranged in the groove (26), the second spring (50) is sleeved on the movable rod (28), one end of the second spring (50) is contacted with the block (27) and the other end is contacted with the bottom of the groove (26).