阅读说明：本技术 一种防风且便于更换的思政宣传栏 (Prevent wind and think political affairs publicity column of being convenient for change ) 是由 徐宏霞 于 2021-06-29 设计创作，主要内容包括：本发明公开了一种防风且便于更换的思政宣传栏,采用在栏板两侧设置电驱动的竖直与近似水平转换结构,能够方便宣传栏栏板由竖直变为近似水平,以方便在大风天气下防止被风吹倒,或者方便更换栏板内的宣传页,无需费力地将软质的宣传页竖直铺开,而通过栏板自动回位,由近似水平变回竖直,方便大风过后或者更换完成宣传页后继续起到宣传的作用,也就是说通过这个结构实现解决防风和方便更换的两个问题,适应性好。(The invention discloses a windproof and easily-replaceable political thinking publicity column, which adopts an electrically-driven vertical and approximately horizontal conversion structure arranged on two sides of a fence board, can facilitate the change of the fence board of the publicity column from vertical to approximately horizontal so as to conveniently prevent the publicity pages from being blown down by wind in strong wind weather, or facilitate the replacement of the publicity pages in the fence board, does not need to laboriously spread the soft publicity pages vertically, but automatically returns to vertical from approximately horizontal through the fence board, so that the publicity effect can be continuously played after the strong wind passes or the publicity pages are replaced, namely, the windproof and easily-replaceable publicity column is realized through the structure, and the adaptability is good.)

1. The utility model provides a think political affairs publicity column of preventing wind and being convenient for change, includes breast board and supporting leg, the breast board below is equipped with supporting leg, its characterized in that: the left side and the right side of the breast board are respectively provided with a right-angle sleeve frame, the lower ends of the two right-angle sleeve frames are respectively provided with a supporting leg, the right-angle sleeve frames are in an L-shaped structure in the right-view projection direction and are internally provided with L-shaped slideways, the vertical parts of the right-angle sleeve frames vertically extend downwards along the left side and the right side of the breast board, the horizontal parts of the right-angle sleeve frames horizontally extend backwards from the bottom of the breast board respectively, the upper side and the lower side of the left end and the right end of the breast board are respectively provided with an upper connecting rod and a lower connecting rod which extend towards the L-shaped slideways, the distance between the upper connecting rod and the lower connecting rod which are positioned at the same side of the breast board is equal to the length of the vertical parts of the L-shaped slideways, the length of the vertical parts of the L-shaped slideways is larger than the length of the horizontal parts of the L-shaped slideways, the breast board can be converted into an approximately horizontal state from the vertical state through the sliding action of the upper connecting rod and the lower connecting rod in the L-shaped slideways, and the parts of the lower connecting rod which are nested with driving connecting blocks, the lower extreme of the even piece of drive runs through and threaded connection has the lead screw that the front and back level extends, the front end of lead screw articulates there is articulated piece down, articulated piece setting is at the bottom front end of right angle cover frame down, the rear end of lead screw is provided with electronic remote control box, electronic remote control box sets up between two right angle cover frame rear ends and can synchronous drive two lead screw synchronous rotations for the even piece of drive can be along lead screw horizontal migration around, the breast board can be changed into approximate horizontality by vertical state in the electronic remote control action process of electronic remote control box.

2. The windproof and easy-to-replace political thought bulletin board of claim 1, wherein: the breast board includes breast frame, propaganda page or leaf, preceding transparent plate and back deckle board are in the preceding terminal surface and the rear end face of breast board respectively, be equipped with the propaganda page or leaf between preceding transparent plate and the back deckle board, be equipped with the breast frame between the outside border of preceding transparent plate and back deckle board, the upper and lower both ends of the left and right sides of breast frame are equipped with connecting rod and lower connecting rod respectively the breast board is removed the in-process along L shape slide by last connecting rod and lower connecting rod, preceding transparent plate and back deckle board become by vertical state respectively and approximate horizontality and preceding transparent plate are in the below of back deckle board, through dismantling the back deckle board, conveniently change the propaganda page or leaf between preceding transparent plate and the back deckle board with the mode of approximate level tiling.

3. The windproof and easy-to-replace political thought bulletin board of claim 2, wherein: the rear ends of the horizontal parts of the two L-shaped slideways are respectively provided with a rear travel switch which is contacted with the lower connecting rod under the condition that the breast board is approximately horizontal, the upper ends of the vertical parts of the two L-shaped slideways are respectively provided with an upper travel switch which is contacted with the upper connecting rod, the upper travel switches are respectively contacted with the upper connecting rod, the two upper travel switches form a first travel switch group, the two rear travel switches form a second travel switch group, and the first travel switch group and the second travel switch group are respectively electrically connected with the electric remote control box and transmit signals for triggering the corresponding travel switches by the upper connecting rod or the lower connecting rod to the electric remote control box, so that the electric remote control box can timely and synchronously stop the driving of the two lead screws.

4. The windproof and easy-to-replace political thought bulletin board of claim 3, wherein: the left and right sides of back deckle board is equipped with respectively and covers the piece, cover the platelike structure that the piece was made for adopting the elasticity plastic, the tip that covers the piece and keep away from back deckle board extends towards right angle cover frame the breast board is changed into the in-process of approximate horizontality by vertical state, cover the piece and can cover on the lead screw, avoid the rainwater to water and drench on the lead screw and lead to the rusty problem of lead screw.

5. The windproof and easy-to-replace political thought bulletin board of claim 4, wherein: the tip top-down that covers the piece and lean on to right angle cover frame is equipped with a plurality of magnet piece in proper order for cover the piece and lean on to the tip of right angle cover frame can magnetic adsorption to the lead screw along with the in-process that the breast board is changed into approximate horizontality by vertical state, cover the piece and can wrap on the lead screw, in order to further strengthen the water-proof effects that covers the piece to the lead screw.

6. The windproof and easy-to-replace political thought bulletin board of claim 5, wherein: the end parts of the upper connecting rod and the lower connecting rod, which are far away from the breast board, are respectively hinged with an upper sliding wheel and a lower sliding wheel, the upper sliding wheel and the lower sliding wheel are positioned in the L-shaped slide way, and the outer diameter of the upper sliding wheel and the lower sliding wheel is not larger than the width of the L-shaped slide way.

7. The political thinking publicity column of claim 6, which is windproof and convenient to replace, is characterized in that: right angle cover frame leans on to the tip of breast board and the tip of keeping away from the breast board to be equipped with interior closing cap piece and outer closing cap board respectively, outer closing cap board adopts hard material to make and keeps away from the tip shutoff of breast board with L shape slide, interior closing cap piece adopts elastic plastic to make and is equipped with crisscross shutoff seam along the direction that L shape slide extends, crisscross shutoff seam's both sides are a plurality of sharp corner teeth that intermeshing is in the same place the breast board is changed into approximate horizontality's in-process by vertical state, go up connecting rod and lower connecting rod and do not constantly carve out the sharp corner tooth of crisscross meshing and at last connecting rod and lower connecting rod after the past the state of sharp corner tooth resumeing crisscross meshing to the dust-proof ability in the reinforcing L shape slide.

8. The windproof and easy-to-replace political thought bulletin board of claim 7, wherein: the utility model discloses a lead screw, including the screw sleeve, the telescopic cover of screw thread is including the baffle is reset to the horizontal state, the telescopic cover of dustproof is nested on the lead screw, both ends set up respectively including the rear end of threaded sleeve and the front end of electronic remote control box around the telescopic cover of dustproof, the telescopic cover of dustproof is between the baffle rear end that is in the contraction state and is in under the approximate horizontal state and the front end of electronic remote control box under the baffle transform is approximate horizontal state, the telescopic cover of dustproof is at the baffle by approximate horizontal state reset for vertical state's in-process along with the drive even piece along the lead screw forward movement and stretch the parcel lead screw.

9. The political thought publicity column of preventing wind and being convenient for change according to claim 8, characterized in that: the electric remote control box comprises a remote control box, a first servo motor, a second servo motor and a UPS (uninterrupted power supply), wherein the first servo motor and the second servo motor rotate with two lead screws which penetrate through and are hinged to the electric remote control box respectively and can drive the corresponding lead screws respectively, the first servo motor and the second servo motor rotate under the synchronous control of the remote control box, so that the two lead screws can rotate synchronously, the UPS is arranged between the remote control box and a power grid, the problem that the state of a fence is difficult to control in time due to the fact that the power grid is interrupted in abnormal weather can be avoided, and the remote control box is in interactive communication with a server in a wireless communication mode to receive control instructions and realize the change action of the state of the fence.

10. The windproof and easy-to-replace political thought bulletin board of claim 9, wherein: an upper cross rod is arranged between the upper ends of the two right-angle sleeve frames, an anemoscope is arranged on the upper cross rod, the anemoscope is electrically connected with the remote control box and transmits a wind speed detection signal to the remote control box, so that the remote control box can judge whether to control the start of the first servo motor and the second servo motor according to the wind speed detection signal, and the transition action of the breast board from the vertical state to the approximately horizontal state or the reset action of the breast board from the approximately horizontal state to the vertical state can be finished in real time.

Technical Field

The invention relates to the technical field of publicity columns, in particular to a windproof and easy-to-replace political thinking publicity column.

Background

As a place for teaching and raising people in schools, publicity columns are indispensable instruments, especially ideological and political education is an important work which needs to be carried out for a long time, and the ideological and political publicity columns can effectively help students to establish correct life and value views, so the ideological and political publicity columns are generally arranged in schools, such as flower gardens on both sides of roads, the peripheries of campus landscape belts and the like, but because the general publicity columns adopt a structure that two supporting legs are arranged under a frame, the wind resistance is poor, the publicity columns are easy to blow down and even fly away in strong wind, other people are easy to hurt at the moment, the publicity columns do not come across in daily life, so that improved ideas emerge, and through looking up data, the predecessors are found to do a lot of work, such as the Chinese patent with the application number of '201711009504X' and the patent name of 'a wind-proof sand-fixing publicity column', the propaganda column fence board is divided into the boards which can rotate, and the torsional springs are arranged at the hinged positions to adapt to wind direction blowing, so that the action area of strong wind on the propaganda column fence board is reduced, but the rotating boards are arranged in the propaganda column fence board, so that the disadvantage that a propaganda page with a larger space is difficult to paste is caused, the rotating boards rotate respectively under the action of the strong wind, the problem that the propaganda page is torn can be generated, the rotating boards are arranged for inspiring my patent, so that the propaganda page with the larger space is convenient to paste, but a new problem is caused, namely the rotating boards are small in size, the rotating boards are easy to fan back and forth on the road surface in the rotating process, pedestrians are easy to hurt, therefore, how to absorb the windproof advantage is further considered, and pedestrians are effectively prevented from being hurt.

Considering that the area of the ground for placing the publicity column in a school is relatively loose, and after research, the publicity column sideboard has strong windproof capability if the center of gravity of the publicity column sideboard is lowered and the publicity column sideboard is laid flat, particularly, the two sides of a road are generally provided with low plants such as hollies, the lower end of the publicity column sideboard generally has a little height difference with the plants, namely, if the publicity column sideboard is laid flat and almost covers the low plants, the low plants can shield the wind below the publicity column sideboard, so that the publicity column with the laid flat sideboard can obtain good windproof function, and meanwhile, the publicity column with the laid billboard sideboard is convenient to replace the publicity page after being laid flat is also discovered, so that two purposes are achieved, the specific structure is refined through deep thinking, and the political publicity column capable of well preventing the wind and conveniently replacing the publicity page is invented.

Disclosure of Invention

Aiming at the existing problems, the windproof and easy-to-replace political thinking publicity column provided by the invention adopts an electric drive structure, can facilitate the publicity column sideboard to be changed from vertical to approximately horizontal so as to prevent from being blown down by wind in windy weather or facilitate the replacement of publicity pages in the sideboard, does not need to laboriously and vertically spread out the soft publicity pages, and can automatically return to vertical from approximately horizontal through the sideboard, thereby facilitating the continuous publicity effect after the windy or the replacement of the publicity pages, and realizing the windproof and easy-to-replace two problems through the structure, and having good adaptability.

The technical scheme of the invention is as follows:

the invention provides a windproof and conveniently-replaced political thinking publicity column, which comprises a breast board and supporting legs, wherein the supporting legs are arranged below the breast board, right-angle sleeve frames are respectively arranged at the left side and the right side of the breast board, the lower ends of the two right-angle sleeve frames are respectively provided with the supporting legs, the right-angle sleeve frames are in an L-shaped structure in the right-view projection direction, an L-shaped slide way is arranged in the right-angle sleeve frames, the vertical parts of the right-angle sleeve frames vertically extend downwards along the left side and the right side of the breast board, the horizontal parts of the right-angle sleeve frames horizontally extend backwards from the bottom of the breast board, the upper side and the lower side of the left end and the right end of the breast board are respectively provided with an upper connecting rod and a lower connecting rod which extend towards the L-shaped slide way, the distance between the upper connecting rod and the lower connecting rod which are positioned at the same side of the breast board is equal to the length of the vertical part of the L-shaped slide way, the length of the vertical part of the L-shaped slide way is larger than the length of the horizontal part of the L-shaped slide way, and the upper connecting rod and the lower connecting rod slide way can slide in the L-shaped slide way, the sideboard can be changed into approximate horizontality by vertical state, and the part nestification that is in between sideboard and the right angle cover frame on the lower connecting rod has the drive even piece, the lower extreme of drive even piece runs through and threaded connection has the lead screw of horizontal extension around, the front end of lead screw articulates there is articulated piece down, articulated piece setting is at the bottom front end of right angle cover frame down, the rear end of lead screw is provided with electronic remote control box, electronic remote control box sets up between two right angle cover frame rear ends and can synchronous drive two lead screw synchronous rotations for drive even piece can be along lead screw horizontal migration around, the sideboard can be changed into approximate horizontality by vertical state in the electronic remote control action process of electronic remote control box.

Further, the breast board includes breast frame, propaganda page or leaf, preceding transparent plate and back deckle board are in the preceding terminal surface and the rear end face of breast board respectively, be equipped with the propaganda page or leaf between preceding transparent plate and the back deckle board, be equipped with the breast frame between the outside border of preceding transparent plate and back deckle board, the upper and lower both ends of the left and right sides of breast frame are equipped with connecting rod and lower connecting rod respectively the breast board is by last connecting rod and lower connecting rod along L shape slide removal in-process, preceding transparent plate and back deckle board become the below that approximate horizontality and preceding transparent plate are in the back deckle board by vertical state respectively, through dismantling the back deckle board, conveniently change the propaganda page or leaf between preceding transparent plate and the back deckle board with the mode of approximate level tiling.

Furthermore, rear travel switches which are contacted with the lower connecting rod in a state that the breast board is approximately horizontal are respectively arranged at the rear ends of the horizontal parts of the two L-shaped slideways, upper travel switches which are contacted with the upper connecting rod are respectively arranged at the upper ends of the vertical parts of the two L-shaped slideways, the two upper travel switches form a first travel switch group, the two rear travel switches form a second travel switch group, and the first travel switch group and the second travel switch group are respectively electrically connected with the electric remote control box and transmit signals which are used for triggering the corresponding travel switches by the upper connecting rod or the lower connecting rod to the electric remote control box, so that the electric remote control box can timely and synchronously stop the driving of the two lead screws.

Further, the left and right sides of back framed panel is equipped with respectively and covers the piece, cover the platelike structure that the piece was made for adopting the elasticity plastic, cover the piece and keep away from the tip of back framed panel and extend towards right angle cover frame the breast board is changed into the in-process of approximate horizontality by vertical state, cover the piece and can cover on the lead screw, avoid the rainwater to water and drench on the lead screw and lead to the rusty problem of lead screw.

Further, the tip top-down that the piece was leaned on to right angle cover frame is equipped with a plurality of magnet piece in proper order for the piece that covers can the magnetic adsorption to the lead screw along with the in-process that the end of right angle cover frame is changed into approximate horizontality by vertical state along with the breast board on, the piece that covers can wrap on the lead screw to further strengthen the waterproof effect of covering the piece to the lead screw.

Further, the end parts, far away from the breast board, of the upper connecting rod and the lower connecting rod are respectively hinged with an upper sliding wheel and a lower sliding wheel, the upper sliding wheel and the lower sliding wheel are located in the L-shaped slide way, and the outer diameter of the upper sliding wheel and the outer diameter of the lower sliding wheel are not larger than the width of the L-shaped slide way.

Further, the right angle cover frame is close to the tip to the breast board and is equipped with interior closing cap piece and outer closing cap board respectively with the tip of keeping away from the breast board, outer closing cap board adopts hard material to make and keeps away from the tip shutoff of breast board with L shape slide, interior closing cap piece adopts elastic plastic to make and is equipped with crisscross shutoff seam along the direction that L shape slide extends, crisscross shutoff seam's both sides are a plurality of sharp corner teeth that mesh together mutually the in-process of breast board is changed into approximate horizontality by vertical state, go up connecting rod and lower connecting rod and do not constantly carve out the sharp corner tooth of crisscross meshing respectively and go back sharp corner tooth and resume crisscross meshing's state again after last connecting rod and lower connecting rod pass to strengthen the dust-proof ability in the L shape slide.

Further, the lead screw is nested with a dustproof telescopic sleeve, the front end of the electric remote control box and the rear end of the inner thread sleeve are respectively arranged at the front end and the rear end of the dustproof telescopic sleeve, the dustproof telescopic sleeve is arranged between the rear end of the breast board and the front end of the electric remote control box, the breast board is in a contraction state under the state that the breast board is changed to be approximately horizontal, the rear end of the breast board is in an approximately horizontal state, and the dustproof telescopic sleeve is arranged between the front end of the electric remote control box and the front end of the breast board, and the dustproof telescopic sleeve is arranged on the breast board and is reset to be vertical along with the driving of the connected blocks to move forwards along the lead screw in the process that the breast board is approximately horizontal.

Further, electronic remote-control box includes remote control box, first servo motor, second servo motor and UPS uninterrupted power source, first servo motor and second servo motor rotate with running through and articulate two lead screw connections on electronic remote-control box and can drive the lead screw that corresponds respectively, first servo motor and second servo motor are rotated by remote control box synchro-control for two lead screws can synchro-rotate, and are equipped with UPS uninterrupted power source between remote control box and the electric wire netting, can avoid under the unusual weather the electric wire netting to break off and cause the problem that is difficult to in time control breast board state change, just remote control box carries out interactive communication with the server through radio communication's mode with the receiving control instruction, realizes the transform action of breast board state.

Furthermore, an upper cross rod is arranged between the upper ends of the two right-angle sleeve frames, an anemoscope is arranged on the upper cross rod, the anemoscope is electrically connected with the remote control box and transmits a wind speed detection signal to the remote control box, so that the remote control box can judge whether to control the start of the first servo motor and the second servo motor according to the wind speed detection signal, and the transition action of the breast board from the vertical state to the approximately horizontal state or the reset action of the breast board from the approximately horizontal state to the vertical state can be finished in real time.

Due to the adoption of the technology, compared with the prior art, the invention has the following specific positive beneficial effects:

the invention adopts the electrically driven vertical and approximate horizontal conversion structures arranged on the two sides of the breast board, so that the publicity column breast board can be conveniently changed from vertical to approximate horizontal, the publicity pages in the breast board can be conveniently prevented from being blown down by wind in windy weather, or the publicity pages in the breast board can be conveniently replaced, the soft publicity pages can be vertically spread without labor, the breast board automatically returns to vertical from approximate horizontal, the publicity effect can be continuously played after the windy weather or the publicity pages are replaced, namely, the two problems of wind prevention and convenient replacement are solved through the structure, and the adaptability is good.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;

FIG. 2 is a schematic view of an embodiment of the present invention in a rear view;

FIG. 3 is a schematic view of the structure of FIG. 2 after removal of the rear boxboard;

FIG. 4 is a top view of a first embodiment of the present invention;

FIG. 5 is a cross-sectional view taken at A-A of FIG. 4;

FIG. 6 is a cross-sectional view taken at B-B of FIG. 4;

FIG. 7 is a schematic structural diagram of an embodiment of the present invention in windy weather or when promotional content is changed;

FIG. 8 is an electrical control block diagram of a first embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a second embodiment of the present invention;

fig. 10 is an electrical control block diagram of the second embodiment of the present invention.

In the figure: 1-hurdle frame, 2-front transparent plate, 3-upper connecting rod, 4-right angle sleeve frame, 5-inner sealing cover plate, 6-staggered sealing seam, 7-outer sealing cover plate, 8-transverse sleeve, 9-lower connecting rod, 10-lower hinged block, 11-screw rod, 12-front supporting leg, 13-floor bolt plate, 14-dustproof telescopic sleeve, 15-rear control box, 16-rear supporting leg, 17-covering plate, 18-rear frame plate, 19-first servo motor, 20-remote control box, 21-UPS (uninterrupted power supply), 22-upper sliding wheel, 23-lower sliding wheel, 24-internal thread sleeve, 25-anemometer and 26-upper transverse rod.

Detailed Description

The first embodiment is as follows:

as shown in attached figures 1-8, the invention provides a windproof and easily-replaceable political thinking publicity column, which comprises a breast board and supporting legs, wherein the supporting legs are arranged below the breast board, right-angle sleeve frames 4 are respectively arranged at the left side and the right side of the breast board, the lower ends of the two right-angle sleeve frames 4 are respectively provided with the supporting legs as front supporting legs 12, the right-angle sleeve frames 4 are in L-shaped structures in the right-view projection direction, L-shaped slideways are arranged in the right-angle sleeve frames 4, the vertical parts of the right-angle sleeve frames 4 vertically extend downwards along the left side and the right side of the breast board, the horizontal parts of the right-angle sleeve frames respectively extend backwards from the bottom of the breast board, upper connecting rods 3 and lower connecting rods 9 extending towards the L-shaped slideways are respectively arranged at the upper side and the lower side of the left end and the right side of the breast board, the distance between the upper connecting rods 3 and the lower connecting rods 9 at the same side of the breast board is equal to the length of the vertical part of the L-shaped slideways, and the length of the vertical part of the L-shaped slideways is greater than the length of the horizontal part of the L-shaped slideways, through the sliding action of the upper connecting rod 3 and the lower connecting rod 9 in the L-shaped slideway, the breast board can be changed into an approximately horizontal state from a vertical state, the part of the lower connecting rod 9 between the breast board and the right-angle sleeve frame 4 is nested with a driving connecting block, the lower end of the driving connecting block penetrates through and is in threaded connection with a lead screw 11 horizontally extending from front to back, the front end of the lead screw 11 is hinged with a lower hinged block, the lower hinged block is arranged at the front end of the bottom of the right-angle sleeve frame 4, the rear end of the lead screw 11 is provided with an electric remote control box, the center of the lower end surface of the electric remote control box is provided with a rear supporting leg 16 vertically extending downwards, the rear supporting leg 16 and the lower end of the front supporting leg 12 are respectively provided with a floor bolt plate 13, the floor bolt plate 13 is connected with a floor bolt prefabricated in a ground cement block, the electric remote control box is arranged between the rear ends of the two right-angle sleeve frames 4 and can synchronously drive the two lead screws 11 to synchronously rotate, so that the driving connecting block can horizontally move back and forth along the lead screw 11, the breast board can be changed into approximate horizontality by vertical state in the electronic remote control action in-process of electronic remote-control box, and this has just satisfied the needs of dealing with strong wind weather or quick replacement leaflet.

The problem of the size of the horizontal part and the vertical part of the L-shaped slide is solved, because if the horizontal part and the vertical part of the L-shaped slide are equal in length, the breast board is completely laid, the upper connecting rod 3 is easy to form a movement dead angle at the right angle of the L-shaped slide, and therefore the length of the vertical part of the L-shaped slide is larger than the length of the horizontal part of the L-shaped slide by a certain size, for example, 10mm-30mm, and the lowest position of the upper connecting rod 3 sliding downwards along the L-shaped slide is about 10mm-30mm above the right angle of the L-shaped slide, so that the breast board is in an approximately horizontal state, good horizontal placement performance can be obtained, the problem of movement dead angle generated after the breast board is completely laid horizontally can be avoided, and the breast board is convenient to reset to the vertical state from the approximately horizontal state.

The rear ends of the horizontal parts of the two L-shaped slideways are respectively provided with a rear travel switch which is contacted with the lower connecting rod 9 under the condition that the breast board is approximately horizontal, the upper ends of the vertical parts of the two L-shaped slideways are respectively provided with an upper travel switch which is contacted with the upper connecting rod 3, the two upper travel switches form a first travel switch group, the two rear travel switches form a second travel switch group, in the process that the breast board is converted from the vertical state to the approximately horizontal state, the two upper connecting rods 3 are separated from the upper travel switches, the two lower connecting rods 9 respectively contact the rear travel switches, when the electric remote control box receives a trigger signal of the rear travel switches, the two lead screws 11 are controlled to synchronously stop forward rotation, a control instruction for resetting the breast board is waited, after the control instruction for resetting the breast board is received, the electric remote control box controls the two lead screws 11 to synchronously rotate reversely until the two upper connecting rods 3 contact the upper travel switches, and stopping driving after receiving the trigger signal of the upper travel switch, wherein the breast board is in a vertical state at the moment.

The driving connecting block comprises a transverse sleeve 8 and an internal thread sleeve 24, the transverse sleeve 8 is nested on the lower connecting rod 9, the internal thread sleeve 24 is arranged below the transverse sleeve 8, the thread of the internal thread sleeve 24 is nested on the screw rod 11, the axis of the internal thread sleeve is perpendicular to the different surfaces of the axis of the transverse sleeve 8, the transverse sleeve 8 and the internal thread sleeve 24 are integrally formed by metal, and the driving connecting block is a single metal piece and is convenient to assemble.

The breast board comprises a breast board frame 1, propaganda pages, a front transparent board 2 and a rear frame board 18, the front transparent board 2 and the rear frame board 18 are respectively arranged on the front end surface and the rear end surface of the breast board, the propaganda pages are arranged between the front transparent board 2 and the rear frame board 18, the breast board frame 1 is arranged between the outer edges of the front transparent board 2 and the rear frame board 18, the upper end and the lower end of the left side and the right side of the breast board frame 1 are respectively provided with an upper connecting rod 3 and a lower connecting rod 9, in the process that the breast board moves along an L-shaped slideway by the upper connecting rod 3 and the lower connecting rod 9, the front transparent board 2 and the rear frame board 18 are respectively changed from a vertical state to an approximately horizontal state, the front transparent board 2 is arranged below the rear frame board 18, therefore, aiming at the problem that the propaganda pages are generally inconvenient to be replaced vertically at present, a remote control software is better solved, a worker logs in front of the breast board by a mobile phone, clicks corresponding buttons in the APP software to send a control instruction to a server, the server forwards the electric box in the propaganda corresponding place, make the breast board of publicity column change into approximate horizontal state by vertical state, back framed panel 18 up this moment, through dismantling with bolted connection, but the back framed panel 18 of mode connection on breast frame 1 such as hasp connection, the publicity page between transparent plate 2 and the back framed panel 18 before convenient changing with the mode of approximate horizontal tiling, need not extra supplementary instrument of holding up and pressing the publicity page, and after having changed the publicity page, click corresponding button in the APP software once more and send control command to the server, the server forwards control command to the electronic remote-control box in the publicity column in corresponding place once more, make the breast board of publicity column change into vertical state by approximate horizontal state, just also make the publicity column continue to play the effect of thinking of political propaganda with brand-new face.

To the waterproof dirt-proof problem of lead screw 11 under daily breast board vertical state, nested dustproof telescope tube 14 on lead screw 11, both ends set up respectively including threaded sleeve 24's rear end and the front end of electronic remote control case before dustproof telescope tube 14, dustproof telescope tube 14 is in the contraction state under the breast board transform is approximate horizontality and is in between the front end of breast board rear end and the electronic remote control case under the approximate horizontality, dustproof telescope tube 14 is at the breast board by the approximate horizontality reset to the in-process of vertical state along with the drive links the piece along lead screw 11 forward movement and stretch parcel lead screw 11.

And become the in-process of approximate horizontality to the sideboard by vertical state, lead screw 11 can expose and easily receive the rainwater to water the problem of drenching the erosion, be equipped with respectively in the left and right sides of back frame plate 18 and cover piece 17, cover piece 17 is the platelike structure who adopts the elasticity plastic to make, cover piece 17 and keep away from the tip of back frame plate 18 and extend towards right angle cover frame 4, change into the in-process of approximate horizontality by vertical state at the sideboard, cover piece 17 can cover on lead screw 11, avoid the rainwater to water and drench on lead screw 11 and lead to the rusty problem of lead screw 11.

Certainly in order to let the cover piece 17 wrap the lead screw 11 better in the process that the sideboard is changed from the vertical state to the approximately horizontal state, a plurality of magnet blocks are arranged in sequence from top to bottom at the end part of the cover piece 17 close to the right-angle sleeve frame 4, so that the end part of the cover piece 17 close to the right-angle sleeve frame 4 can be magnetically adsorbed to the lead screw 11 in the process that the sideboard is changed from the vertical state to the approximately horizontal state, and the cover piece 17 can be wrapped on the lead screw 11 to further strengthen the waterproof effect of the cover piece 17 on the lead screw 11.

In order to better enable the upper connecting rod 3 and the lower connecting rod 9 to slide along the L-shaped slideway and reduce the friction and abrasion between the upper connecting rod 3 and the L-shaped slideway and between the lower connecting rod 9 and the L-shaped slideway, the end parts of the upper connecting rod 3 and the lower connecting rod 9 far away from the breast board are respectively articulated with an upper sliding wheel 22 and a lower sliding wheel 23, the upper sliding wheel 22 and the lower sliding wheel 23 are positioned in the L-shaped slideway, and the outer diameter is not more than the width of the L-shaped slideway.

Right angle cover frame 4 is close to the tip of breast board and is equipped with interior closing cap piece 5 and outer closing cap board 7 respectively with the tip of keeping away from the breast board to the tip of breast board, outer closing cap board 7 adopts hard material to make and keeps away from the end shutoff of breast board with L shape slide, interior closing cap piece 5 adopts elastic plastic to make and is equipped with crisscross shutoff seam 6 along the direction that L shape slide extends, crisscross shutoff seam 6's both sides are a plurality of sharp corner teeth that mesh together, in the process that the breast board is changed into approximate horizontality by vertical state, go up connecting rod 3 and lower connecting rod 9 and do not constantly scratch crisscross meshed sharp corner tooth and last connecting rod 3 and lower connecting rod 9 pass the back sharp corner tooth and resume crisscross meshed state again respectively to the dustproof ability in the reinforcing L shape slide.

Wherein, the lower extreme equipartition of right angle cover frame 4 is equipped with a plurality of ventilative micropores that can communicate L shape slide with the external world, conveniently discharges the rainwater that unexpected entering L shape slide in.

The electric remote control box comprises a remote control box 20, a first servo motor 19, a second servo motor and a UPS (uninterrupted Power supply) 21, wherein the first servo motor 19 and the second servo motor are respectively connected with two lead screws 11 which penetrate through and are hinged on the electric remote control box and can respectively drive the corresponding lead screws 11 to rotate, the first servo motor 19 and the second servo motor are synchronously controlled and rotated by the remote control box 20, so that the two lead screws 11 can synchronously rotate, the UPS 21 is arranged between the remote control box 20 and a power grid, the problem that the state of a fence is difficult to control in time due to the fact that the power grid is interrupted in abnormal weather can be avoided, the remote control box 20 is in interactive communication with a server in a wireless communication mode to receive a control instruction, and the transformation action of the state of the fence is realized.

As shown in fig. 8, the remote control box 20 includes a controller and a wireless communication module, the controller is a stm32 single chip microcomputer or a PLC controller, the controller is electrically connected to the first travel switch group, the second travel switch group, the wireless communication module, the UPS uninterruptible power supply 21, the first servo motor 19 and the second servo motor, respectively, wherein the wireless communication module is a Wifi module, a 4G communication module or a 5G communication module.

As shown in fig. 9 and 10, an upper cross bar 26 is disposed between the upper ends of the two right-angle frames 4, an anemoscope 25 is disposed on the upper cross bar 26, the anemoscope 25 is electrically connected to the controller and transmits a wind speed detection signal to the controller, so that the controller can determine whether to control the start of the first servo motor 19 and the second servo motor according to the wind speed detection signal, and complete the transition of the balustrade from the vertical state to the approximately horizontal state or the reset of the balustrade from the approximately horizontal state to the vertical state in real time.

Wherein the server can send an emergency weather instruction to the controller through the wireless communication module as required, for example, when severe and heavy wind weather such as typhoon is encountered, the wind power level of the weather forecast in the area reaches 6 levels or above, the priority of the instruction is higher than the signal priority measured by the anemoscope 25, that is, no matter how small the wind speed measured by the anemoscope 25 is, the instruction acts according to the emergency weather instruction, so that the first servo motor 19 and the second servo motor synchronously drive the two screw rods 11 to synchronously rotate forward, the driving link block drives the lower end of the sideboard to horizontally move backwards until the lower connecting rod 9 touches the rear travel switch, the second travel switch group sends a trigger signal to the controller, the controller controls the first servo motor 19 and the second servo motor to synchronously stop driving the two screw rods 11 to rotate, at this time, the sideboard is in a state of approximate horizontal, the controller waits for the server to send an emergency weather release instruction, when severe and windy weather passes, the controller receives an emergency weather release instruction sent by the server, and then controls the first servo motor 19 and the second servo motor to synchronously drive the two screw rods 11 to synchronously rotate in the opposite directions until the upper connecting rod 3 touches the upper travel switch, the first travel switch group sends a trigger signal to the controller, the controller controls the first servo motor 19 and the second servo motor to synchronously stop driving the two screw rods 11 to rotate, and at the moment, the breast board is in a vertical state.

For severe and strong wind weather in a small area, such as tornado, which cannot be forecasted to climb on the weather, in a local area, the controller can automatically start the barrier plate leveling action for avoiding strong wind through a signal measured by the anemoscope 25, and can automatically start the barrier plate to reset to the vertical action when the anemoscope 25 measures that the wind power is weakened to be below 5-level wind.