CN211828025U - Publicity and education bulletin board - Google Patents

Abstract

The utility model relates to a publicity and education bulletin board, including vertical first stand and the second stand that is fixed in ground, the side that first stand and second stand are relative has all seted up the standing groove, it has first diaphragm and second diaphragm to articulate in the standing groove, the standing groove supplies first diaphragm and second diaphragm to place wherein, the free end tip of articulated first diaphragm and second diaphragm in the first stand has all seted up the spread groove, the free end tip of articulated first diaphragm and second diaphragm in the second stand all fixedly connected with connecting block, connecting block and spread groove peg graft cooperation; still including setting up the center pillar on the connecting block, be equipped with on the center pillar and make the center pillar and first diaphragm and the fixed coupling assembling of second diaphragm, be equipped with rain-proof subassembly on the first board, rain-proof subassembly can be dismantled with first diaphragm and be connected. Have the bulletin board of being convenient for will dismantling and transport labour saving and time saving's advantage.

Description

Publicity and education bulletin board

Technical Field

The utility model belongs to the technical field of the technique of bulletin board and specifically relates to a bulletin board is used in propaganda and education is related to.

Background

The bulletin board is a display article placed on the ground for posting bulletin, revelation and other suggestive contents, and is mostly made of steel plates, stainless steel plates, wood or aluminum plates. The bulletin boards of steel plates and stainless steel adopt a steel plate baking finish process, the surfaces of the steel plates and the stainless steel are subjected to corrosion prevention treatment, and the steel plates and the stainless steel bulletin boards can be buried under the ground and also can be fixed on the surface of a hardened floor by expansion screws. To block sun and rain, the bulletin board typically has a ceiling.

Referring to fig. 1, the bulletin board in the prior art includes two upright columns, two legs 29 are fixedly connected to the bottoms of the upright columns, the legs 29 are fixedly connected to the bottom surface through screws 33, a first plate 30 and a second plate 31 are fixedly connected between the two upright columns, the first plate 30 is located above the second plate 31, and the two connecting rods are horizontally disposed. The middle points of the two connecting plates in length are fixedly connected with vertical partition plates. Two mounting frames are enclosed between the partition board, the two upright posts and the two connecting plates, and the mounting frames are internally provided with the propaganda cards 32.

The above prior art solutions have the following drawbacks: because the bulletin board is integrally arranged, the bulletin board is inconvenient to transport and wastes time and labor due to the fact that the bulletin board is large in size in the process of transporting the bulletin board under the disassembly process.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a publicity and education is with bulletin board has the bulletin board of being convenient for to dismantle and transports labour saving and time saving's advantage.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a publicity column for propaganda and education comprises a first upright column and a second upright column which are vertically fixed on the ground, wherein the opposite side surfaces of the first upright column and the second upright column are respectively provided with a placing groove, and the placing grooves are formed along the length direction of the first upright column and the second upright column; a first transverse plate and a second transverse plate are hinged in the placing groove, the first transverse plate and the second transverse plate are placed in the placing groove, hinged ends of the first transverse plate, the second transverse plate and the placing groove are respectively located at two ends of the placing groove, and the first transverse plate is located above the second transverse plate; the free end parts of the first transverse plate and the second transverse plate which are hinged in the first upright post are respectively provided with a connecting groove, the free end parts of the first transverse plate and the second transverse plate which are hinged in the second upright post are respectively fixedly connected with a connecting block, and the connecting blocks are in inserting fit with the connecting grooves; the advertising board rack is characterized by further comprising a middle column arranged on the connecting block, wherein two frames for placing the advertising boards are defined by the middle column, the two first transverse plates, the two second transverse plates and the two stand columns; be equipped with on the center pillar and make center pillar and two first diaphragms and the fixed coupling assembling of two second diaphragms, be equipped with rain-proof subassembly on the first board, rain-proof subassembly can be dismantled with first diaphragm and be connected.

Through adopting above-mentioned technical scheme, the standing groove supplies first diaphragm and second diaphragm to place wherein, when dismantling the bulletin board, first diaphragm and second diaphragm can rotate the playback along the pin joint with the standing groove and put the inslot, have realized accomodating first diaphragm and second diaphragm to reduced the volume of transportation, made the volume of bulletin board littleer, the transportation after the dismantlement of being convenient for more. The cooperation of pegging graft of the connecting block of first diaphragm in the spread groove of first diaphragm in the first stand and the second stand to having realized the connection between two stands, having formed a frame that is used for placing the bill-board through the connection of coupling assembling on the center pillar, the center pillar can conveniently be dismantled simultaneously, thereby makes parts such as center pillar, first stand and second stand can dismantle the connection, has further made things convenient for the transportation and has carried. Rain-proof water component plays rain-proof and sunshade effect, makes things convenient for passerby to look over the bill-board in the public notice board.

The present invention may be further configured in a preferred embodiment as: the connecting assembly comprises a fixing bolt, clamping grooves penetrating through the end faces are formed in the two end faces of the center pillar, a vertical groove is formed in the side face of the center pillar, a clamping plate is connected in the vertical groove in a sliding mode, and when the clamping plate slides to be parallel to the end face of the center pillar, a first transverse plate is clamped in the clamping groove through a gap between the clamping plate and the groove wall of the clamping groove; intercommunicating pores are formed in the side faces of the middle column, the clamping plate, the first transverse plate and the second transverse plate, when the first transverse plate is located in a gap between the clamping plate and the groove wall of the clamping groove, the intercommunicating pores are aligned, the fixing bolt is inserted into the intercommunicating pores, and a nut is arranged on the fixing bolt.

Through adopting above-mentioned technical scheme, perpendicular groove supplies the grip block to slide wherein, and the grip block can slide to the position with first board and second board junction centre gripping along perpendicular groove, and the intercommunication pore that sets up on grip block, first diaphragm and the second diaphragm is aligned this moment, inserts fixing bolt in the intercommunication pore, screws the nut at fixing bolt's tip, has realized the fixed connection to two first diaphragms, two second diaphragms and center pillar. The disassembly and the assembly of the bulletin board are more convenient.

The present invention may be further configured in a preferred embodiment as: the rainproof assembly comprises a ceiling, a clamping groove is formed in the side face of the first transverse plate, the clamping groove is formed in the length direction of the first transverse plate, a clamping block is fixedly connected to the back of the ceiling, and the clamping block is in inserting fit with the clamping groove; the spliced eye has all been seted up to first stand and second stand side, sliding connection has the spliced pole in the spliced groove, the spliced groove has been seted up to the side on the ceiling, the spliced groove is pegged graft with the spliced pole and is cooperated, be equipped with in the ceiling and carry out dirt-proof dustproof subassembly to the bill-board.

Through adopting above-mentioned technical scheme, the ceiling setting has played sunshade and rain-proof effect. The draw-in groove supplies the fixture block to peg graft wherein, when the fixture block inserted in the draw-in groove, ceiling and first diaphragm linked together, and the spliced eye of seting up on the spliced eye of stand side and the ceiling aligns this moment, and grafting through the spliced pole has just realized the fixed to the ceiling, and the mode of pegging graft makes the connection of ceiling more convenient, has realized the dismantlement of ceiling and has connected simultaneously, and the ceiling can be dismantled as the part and get off to transport, has made things convenient for the transportation more. The dustproof assembly can play dustproof and protection effects on the advertising board in sand and dust weather or extreme weather.

The present invention may be further configured in a preferred embodiment as: the dustproof assembly comprises a rotating roller, a rotating groove is formed in the lower surface of the ceiling, the rotating roller is rotatably connected to the wall of the rotating groove, and dustproof cloth is wound on the rotating roller.

Through adopting above-mentioned technical scheme, the rotation groove supplies the live-rollers to rotate wherein, and the live-rollers forward or the antiport can make dustproof cloth roll up in the live-rollers or from the live-rollers roll out wherein, plays the effect of adjusting to the drawing in and the expansion of dustproof cloth. The state of the dustproof cloth can be conveniently adjusted according to different conditions.

The present invention may be further configured in a preferred embodiment as: the plug groove is internally provided with a return spring which is sleeved on the plug column, and when the return spring is in a natural state, the end part of the plug column extends out of the plug hole.

Through adopting above-mentioned technical scheme, reset spring plays the effect that resets to the spliced pole, and under reset spring's restoring force, thereby reset spring promotes the spliced pole and makes the spliced pole insert in the inserting groove and realized fixing the ceiling. The fixing of the ceiling is more convenient.

The present invention may be further configured in a preferred embodiment as: one end of the rotating roller extends out of the side face of the ceiling, and the end part of the rotating roller, which extends out of the side face of the ceiling, is fixedly connected with a knob.

Through adopting above-mentioned technical scheme, the knob makes things convenient for operating personnel to rotate the live-rollers.

The present invention may be further configured in a preferred embodiment as: the second transverse plate is provided with a hanging ring, and the bottom of the dustproof cloth is provided with a hook.

Through adopting above-mentioned technical scheme, when dustproof cloth expandes, hang the couple on the link, realized the fixed to the dustproof cloth that expandes.

The present invention may be further configured in a preferred embodiment as: the total length of the first transverse plate and the second transverse plate is less than or equal to the length of the placing groove.

Through adopting above-mentioned technical scheme, guaranteed first diaphragm and second diaphragm and accomodate smoothly in the standing groove.

To sum up, the utility model discloses a following at least one useful technological effect:

the first transverse plate and the second transverse plate can be accommodated in the placing groove, and the center column can be conveniently connected with the first transverse plate and the second transverse plate through the connecting assembly, so that the bulletin board can be disassembled into a plurality of parts, and the transportation and the carrying of the plurality of parts are more convenient;

the inserting column and the inserting groove on the ceiling are used for conveniently fixing and disassembling the ceiling, and the disassembled parts are further conveniently transported.

Drawings

FIG. 1 is a schematic diagram of a prior art configuration;

fig. 2 is a schematic structural diagram of the present invention;

fig. 3 is a schematic structural view of the present invention with parts broken away.

Reference numerals: 1. a first upright post; 2. a second upright post; 3. a placement groove; 4. a first transverse plate; 5. a second transverse plate; 6. connecting grooves; 7. connecting blocks; 8. a center pillar; 9. fixing the bolt; 10. a clamping groove; 11. a vertical slot; 12. a clamping plate; 13. a communicating hole; 14. a nut; 15. a ceiling; 16. a clamping block; 17. a card slot; 18. inserting holes; 19. inserting grooves; 20. inserting the column; 21. a rotating roller; 22. a rotating groove; 23. a dust cloth; 24. a return spring; 25. a knob; 26. hooking; 27. hanging a ring; 29. a support leg; 30. a first plate; 31. a second plate; 32. a billboard; 33. and (4) screws.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 2 and 3, for the utility model discloses a publicity and education is with bulletin board, including vertical first stand 1 and the second stand 2 that is fixed in ground, first stand 1 and second stand 2 pass through screw 33 fixed connection in ground. The side faces, opposite to the first upright post 1 and the second upright post 2, are provided with placing grooves 3, and the placing grooves 3 are formed along the length direction of the first upright post 1 and the second upright post 2; articulated in the standing groove 3 have first diaphragm 4 and second diaphragm 5, and standing groove 3 supplies first diaphragm 4 and second diaphragm 5 to place wherein, and first diaphragm 4 and second diaphragm 5 are located the both ends of standing groove 3 respectively with the hinged end of standing groove 3, and first diaphragm 4 is located second diaphragm 5 top.

The first transverse plate 4 and the second transverse plate 5 connected in the placing groove 3 of the first upright post 1 can rotate into the placing groove 3 or rotate out of the placing groove 3 along a hinge point with the placing groove 3, and when the bulletin board is disassembled, the first transverse plate 4 and the second transverse plate 5 are rotated into the placing groove 3, so that the effect of containing the first transverse plate 4 and the second transverse plate 5 is achieved; when the bulletin board is installed, the first transverse plate 4 and the second transverse plate 5 located in the placing groove 3 are rotated out for installation. This structure sets up and has reduced the volume of public board when making the dismantlement public board, makes the transportation of first stand 1 and second stand 2 more convenient.

The free end parts of a first transverse plate 4 and a second transverse plate 5 which are hinged in the first upright post 1 are both provided with a connecting groove 6, the free end parts of the first transverse plate 4 and the second transverse plate 5 which are hinged in the second upright post 2 are both fixedly connected with a connecting block 7, and the connecting block 7 is in inserting fit with the connecting groove 6; the advertising board is characterized by further comprising a middle column 8 arranged on the connecting block 7, wherein two frames for placing the advertising boards 32 are defined by the middle column 8, the two first transverse plates 4, the two second transverse plates 5 and the two upright posts; be equipped with on the center pillar 8 and make center pillar 8 and two first diaphragms 4 and the fixed coupling assembling of two second diaphragms 5, be equipped with rain-proof subassembly on the first board 30, rain-proof subassembly can be dismantled with first diaphragm 4 and be connected.

The total length of the first transverse plate 4 and the second transverse plate 5 is less than or equal to the length of the placing groove 3, if the total length of the first transverse plate 4 and the second transverse plate 5 is greater than the length of the placing groove 3, interference can be generated in the process of containing the first transverse plate 4 and the second transverse plate 5 in the placing groove 3, and when the total length of the first transverse plate 4 and the second transverse plate 5 is less than or equal to the length of the placing groove 3, smooth containing of the first transverse plate 4 and the second transverse plate 5 can be guaranteed.

First diaphragm 4 and the cooperation of second diaphragm 5 that the standing groove 3 of following first stand 1 rolled out in the standing groove 3 can roll out with the standing groove 3 of second stand 2 first diaphragm 4 and the cooperation of second diaphragm 5, when connecting block 7 and spread groove 6 peg graft, two first diaphragms 4 and two second diaphragms 5 are fixed in the connection of the coupling assembling that sets up on the rethread center pillar 8. Two linked frames formed by the center post 8, the two first transverse plates 4, the two second transverse plates 5, the first upright posts 1 and the second upright posts 2 can be used for placing two advertising boards 32, and a better advertising effect is achieved.

The connecting assembly comprises a fixing bolt 9, two end faces of the center pillar 8 are respectively provided with a clamping groove 10 penetrating through the end faces, the side face of the center pillar 8 is provided with a vertical groove 11, a clamping plate 12 is connected in the vertical groove 11 in a sliding mode, and when the clamping plate 12 slides to be parallel to the end face of the center pillar 8, a gap between the clamping plate 12 and the groove wall of the clamping groove 10 clamps the first transverse plate 4 therein; intercommunicating pores 13 have all been seted up to the side of center pillar 8, grip block 12 and first diaphragm 4, and when first diaphragm 4 was located the clearance between the cell wall of grip block 12 and centre gripping groove 10, three intercommunicating pores 13 aligned, and fixing bolt 9 pegs graft in intercommunicating pores 13, is equipped with nut 14 on the fixing bolt 9.

The vertical slots 11 are used for the clamping plates 12 to slide in, and the number of the vertical slots 11 is two, and the vertical slots 11 are respectively positioned at the side faces close to the top end and the bottom end of the center pillar 8. The clamping plate 12 is slidable along the vertical slot 11. When the connecting block 7 and the connecting groove 6 are in plugging fit. The moving middle column 8 enables the first transverse plate 4 in the first upright post 1 and the first transverse plate 4 in the second upright post 2 to be positioned in the clamping groove 10, and the clamping plate 12 is pushed to enable the clamping plate 12 to slide in the vertical groove 11, so that the two first transverse plates 4 are clamped between the clamping plate 12 and the groove wall of the clamping groove 10. The center pillar 8 is fixed to the two first cross plates 4 and the two second cross plates 5 by aligning the retainer plate 12 with the communication holes 13 formed in the two first cross plates 4 and the center pillar 8, inserting the fixing bolt 9 into the communication hole 13, and tightening the nut 14 at the other end of the fixing bolt 9 to abut against the side surface of the center pillar 8.

The rainproof assembly comprises a ceiling 15, a clamping groove 17 is formed in the side face of the first transverse plate 4, the clamping groove 17 is formed in the length direction of the first transverse plate 4, a clamping block 16 is fixedly connected to the back of the ceiling 15, and the clamping block 16 is in inserted fit with the clamping groove 17; spliced eye 18 has all been seted up to first stand 1 and 2 sides of second stand, and sliding connection has spliced pole 20 in the inserting groove 19, and inserting groove 19 has been seted up to the side on ceiling 15, and inserting groove 19 and the cooperation of pegging graft of spliced pole 20 are equipped with in the ceiling 15 and carry out dirt-proof dustproof subassembly to publicity board 32. The number of the clamping grooves 17 is two, and the two clamping grooves 17 are respectively located on the two first transverse plates 4. The clamping groove 17 is used for the clamping block 16 to be inserted. When the clamping block 16 is positioned in the clamping groove 17, the insertion groove 19 is aligned with the insertion hole 18, and the insertion column 20 is inserted into the insertion groove 19 along the insertion hole 18, so that the ceiling 15 is fixed.

The inserting groove 19 is internally provided with a return spring 24, the return spring 24 is sleeved on the inserting column 20, and when the return spring 24 is in a natural state, the end part of the inserting column 20 extends out of the inserting hole 18. The restoring spring 24 has a restoring effect on the plugging column 20, and under the restoring force of the restoring spring 24, the restoring spring 24 pushes the plugging column 20 to enable the plugging column 20 to be inserted into the plugging groove 19, so that the ceiling 15 is fixed. The fixing of the ceiling 15 is more convenient.

The dustproof assembly comprises a rotating roller 21, a rotating groove 22 is formed in the lower surface of the ceiling 15, the rotating roller 21 is connected to the wall of the rotating groove 22 in a rotating mode, and dustproof cloth 23 is wound on the rotating roller 21. The rotating groove 22 is provided for the rotating roller 21 to rotate therein, and when the rotating roller 21 rotates, the dust-proof cloth 23 is wound on the rotating roller 21.

In other embodiments, the dustproof cloth 23 may be made of transparent plastic cloth, which has a dustproof effect and does not prevent passers-by from normally watching the contents in the bulletin board. However, compared with the dust cloth 23, the transparent plastic cloth is easy to be damaged and is not as durable as the dust cloth 23.

One end of the rotating roller 21 extends out of the side surface of the ceiling 15, and a knob 25 is fixedly connected to the end of the rotating roller 21 extending out of the side surface of the ceiling 15. The knob 25 is provided to facilitate the operator to turn the turning roller 21.

The second transverse plate 5 is provided with a hanging ring 27, and the bottom of the dustproof cloth 23 is provided with a hook 26. When the dustproof cloth 23 is unfolded, the hook 26 is hung on the hanging ring 27, and the unfolded dustproof cloth 23 is fixed.

In other embodiments, the hook 26 and the hanging ring 27 may be provided as an iron piece and a magnet for attracting the iron piece, the iron piece is disposed at the bottom end of the dustproof cloth 23, the magnet is fixedly connected to the second horizontal plate 5, and the dustproof cloth 23 to be pulled down is fixed by the attraction of the iron piece and the magnet. The iron piece and the magnet make the fixing of the dustproof cloth 23 more convenient than the arrangement of the hanging ring 27 and the hanging hook 26, but have the disadvantage of increasing the cost.

The implementation principle of the embodiment is as follows: when the bulletin board is disassembled: the inserting column 20 is pulled out from the inserting groove 19, the fixture block 16 on the back of the ceiling 15 is pulled out from the clamping groove 17, the nut 14 is screwed out from the fixing bolt 9, the fixing bolt 9 is pulled out from the communicating hole 13, and the clamping plate 12 is slid along the vertical groove 11 by sliding the clamping plate 12. The first transverse plate 4 and the second transverse plate 5 are rotated into the placing groove 3 to be stored.

When the bulletin board is installed: the first transverse plate 4 and the second transverse plate 5 which are positioned in the placing groove 3 are rotated out, the connecting block 7 is in plug-in fit with the connecting groove 6, the middle column 8 is installed at the installation position of the connecting block 7 and the connecting groove 6, the sliding clamping plate 12 enables the connection position of the first transverse plate 4 and the second transverse plate 5 to be positioned in the clamping groove 10, the fixing bolt 9 is inserted into the communicating hole 13, and the nut 14 is screwed. Then the block 16 at the back of the ceiling 15 is inserted into the slot 17, and the plug-in post 20 is inserted into the plug-in groove 19 along the plug-in hole 18.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a publicity and education is with bulletin board, includes vertical first stand (1) and the second stand (2) of being fixed in ground, its characterized in that: the side faces, opposite to the first upright post (1) and the second upright post (2), are provided with placing grooves (3), and the placing grooves (3) are formed along the length direction of the first upright post (1) and the second upright post (2); a first transverse plate (4) and a second transverse plate (5) are hinged in the placing groove (3), the first transverse plate (4) and the second transverse plate (5) are placed in the placing groove (3), the hinged ends of the first transverse plate (4), the second transverse plate (5) and the placing groove (3) are respectively positioned at two ends of the placing groove (3), and the first transverse plate (4) is positioned above the second transverse plate (5); the free end parts of a first transverse plate (4) and a second transverse plate (5) which are hinged in the first upright post (1) are respectively provided with a connecting groove (6), the free end parts of the first transverse plate (4) and the second transverse plate (5) which are hinged in the second upright post (2) are respectively fixedly connected with a connecting block (7), and the connecting blocks (7) are in inserting fit with the connecting grooves (6); the advertising board is characterized by further comprising a middle post (8) arranged on the connecting block (7), wherein the middle post (8), the two first transverse plates (4), the two second transverse plates (5) and the two stand columns form two frames for placing the advertising boards (32); be equipped with on center pillar (8) and make center pillar (8) and two first diaphragms (4) and two fixed coupling assembling of second diaphragm (5), be equipped with rain-proof subassembly on first diaphragm (4), rain-proof subassembly can be dismantled with first diaphragm (4) and be connected.

2. The bulletin board for propaganda and education as claimed in claim 1, wherein: the connecting assembly comprises a fixing bolt (9), two end faces of the center pillar (8) are respectively provided with a clamping groove (10) penetrating through the end faces, the side face of the center pillar (8) is provided with a vertical groove (11), the vertical groove (11) is connected with a clamping plate (12) in a sliding mode, and when the clamping plate (12) slides to be parallel to the end face of the center pillar (8), a gap between the clamping plate (12) and the groove wall of the clamping groove (10) clamps the first transverse plate (4) therein; intercommunicating pore (13) have all been seted up to center pillar (8) side, grip block (12), first diaphragm (4) and second diaphragm (5) side, work as when first diaphragm (4) are located the clearance between the cell wall of grip block (12) and centre gripping groove (10), three intercommunicating pore (13) align, fixing bolt (9) are pegged graft in intercommunicating pore (13), be equipped with nut (14) on fixing bolt (9).

3. The bulletin board for propaganda and education as claimed in claim 1, wherein: the rainproof assembly comprises a ceiling (15), a clamping groove (17) is formed in the side face of the first transverse plate (4), the clamping groove (17) is formed in the length direction of the first transverse plate (4), a clamping block (16) is fixedly connected to the back of the ceiling (15), and the clamping block (16) is in inserting fit with the clamping groove (17); spliced eye (18) have all been seted up to first stand (1) and second stand (2) side, inserting groove (19) have been seted up at ceiling (15) back, sliding connection has inserting post (20) in inserting groove (19), inserting groove (19) have been seted up to side on ceiling (15), inserting groove (19) and inserting post (20) cooperation of pegging graft, be equipped with in ceiling (15) and carry out dirt-proof dustproof subassembly to publicity board (32).

4. The bulletin board for propaganda and education as claimed in claim 3, wherein: the dustproof assembly comprises a rotating roller (21), a rotating groove (22) is formed in the lower surface of the ceiling (15), the rotating roller (21) is rotatably connected to the groove wall of the rotating groove (22), and dustproof cloth (23) is wound on the rotating roller (21).

5. The bulletin board for propaganda and education as claimed in claim 3, wherein: a return spring (24) is arranged in the insertion groove (19), the return spring (24) is sleeved on the insertion column (20), and when the return spring (24) is in a natural state, the end part of the insertion column (20) extends out of the insertion hole (18).

6. The bulletin board for propaganda and education as claimed in claim 4, wherein: one end of the rotating roller (21) extends out of the side surface of the ceiling (15), and the end part of one end of the rotating roller (21) extending out of the side surface of the ceiling (15) is fixedly connected with a knob (25).

7. The bulletin board for propaganda and education as claimed in claim 6, wherein: the second transverse plate (5) is provided with a hanging ring (27), and the bottom of the dustproof cloth (23) is provided with a hook (26).

8. The bulletin board for propaganda and education as claimed in claim 1, wherein: the total length of the first transverse plate (4) and the second transverse plate (5) is less than or equal to the length of the placing groove (3).

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