CN219349765U

CN219349765U - Publicity board convenient to change breadth

Info

Publication number: CN219349765U
Application number: CN202320765609.2U
Authority: CN
Inventors: 林海; 方茹馨
Original assignee: Shenyang Institute of Technology
Current assignee: Shenyang Institute of Technology
Priority date: 2023-04-10
Filing date: 2023-04-10
Publication date: 2023-07-14
Anticipated expiration: 2033-04-10

Abstract

The utility model relates to the technical field of ideological and political education and discloses a propaganda board convenient to change breadth, which comprises two connecting frames and two mounting boxes fixedly connected to opposite faces of the two connecting frames; the publicity board body is fixedly connected to the inner walls of the back surfaces of the two installation boxes; the poster is arranged on the front face of the publicity board body; a pressing mechanism is arranged in the installation box; the compressing mechanism is provided with a transmission mechanism; and a locking mechanism is arranged on the connecting frame. This publicity board convenient to change breadth can conveniently carry out quick replacement to the poster through hold-down mechanism and drive mechanism that set up, is difficult to cause the poster to damage, and can not remain glue etc. at publicity board body, easy dismounting, can advance the link inside the supporting leg through the locking mechanism that sets up, accomodate conveniently, and be convenient for adjust the device highly, be convenient for teaching.

Description

Publicity board convenient to change breadth

Technical Field

The utility model relates to the technical field of ideological and political education, in particular to a publicity board convenient for changing breadth.

Background

Ideological and political education is a social practice activity which is formed by applying purposeful, planned and organized influences to members of a society or a social group by using certain ideological and political ideas and morals, and is also a lifelong learning course in Chinese literature.

For example, "a propaganda board for education publicity" with publication number of "CN208570048U" includes a pillar, an equipment box, a top cover and a display board. According to the utility model, the optical sensor is arranged, the external brightness can be monitored in real time, when the external illumination intensity is lower than a set value, the optical sensor transmits information to the controller, the controller controls the electric control switch passage to enable the LED lamp to be lightened, a light source is provided for propaganda pictures arranged on the display board, the motor A and the motor B can realize forward rotation and reverse rotation under the control of the motor controller, when the display board needs to be controlled to descend, the controller sends an instruction to the controller through the control button, the controller sends the instruction to control the motor A and the motor B to positively rotate, the sliding part slides downwards along the sliding cabin, the descending of the display board can be realized, and when the propaganda pictures need to be replaced, only the display board needs to be controlled to descend to a certain position without climbing and replacement.

However, the conventional propaganda board for thinking and political affairs education is stuck on the propaganda board by means of adhesive tape or glue, so that the old breadth is torn off when the breadth is replaced in the later period, the process is complicated, and the replacement efficiency is low.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a publicity board convenient for changing the breadth. Its advantage lies in can conveniently carrying out quick replacement to the poster, is difficult to cause the poster to damage, and can not remain glue etc. at publicity board body, easy dismounting.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the publicity board convenient for changing the breadth comprises two connecting frames, wherein the two connecting frames are arranged in a hollow mode, and the bottom of the connecting frames is provided with an opening;

two mounting boxes fixedly connected to opposite surfaces of the two connecting frames; the opposite surfaces of the two mounting boxes are provided with openings;

the publicity board body is fixedly connected to the inner walls of the back surfaces of the two installation boxes;

the poster is arranged on the front face of the publicity board body; a pressing mechanism is arranged in the installation box; the compressing mechanism is provided with a transmission mechanism; and a locking mechanism is arranged on the connecting frame.

Preferably, the pressing mechanism includes: a screw rod and a limiting rod; the screw rod is rotatably connected to the inner walls of the front side and the rear side of the mounting box at the left side through bearings; the outer wall of the screw rod is in threaded connection with a moving block; the right side of the moving block is fixedly connected with a fixed plate; the back of the fixed plate is fixedly connected with a spring; the limiting rod is fixedly connected to the front inner wall of the mounting box, and the rear end of the limiting rod penetrates through the moving block and is fixedly connected to the back inner wall of the mounting box; the limiting rod is used for limiting the moving block, so that the rotary motion of the moving block is converted into horizontal motion; the outer wall of the screw rod is fixedly sleeved with a belt pulley.

Preferably, the transmission mechanism includes: a rotating shaft and a bevel gear II; the rotating shaft is rotatably connected to the inner wall of the bottom of the mounting box through a bearing; the bottom end of the rotating shaft penetrates through the mounting box and extends downwards; the top end of the rotating shaft is fixedly connected with a bevel gear I; the extension end of the rotating shaft is fixedly connected with a first knob; the bevel gear II is fixedly sleeved on the outer wall of the screw rod and positioned on the screw rod below; the bevel gear II is meshed with the bevel gear I; the number of the transmission mechanisms is two, and the two transmission mechanisms are respectively arranged on the two mounting boxes.

Preferably, the number of the pressing mechanisms is four, the four pressing mechanisms are respectively and oppositely arranged in the two mounting boxes, and the rear ends of the two groups of springs positioned on the same side are fixedly connected with pressing plates; the back of the pressing plate is abutted against the front of the poster; the two groups of belt pulleys positioned on the same side are connected through belt transmission.

Preferably, the inner walls of the two connecting frames are respectively and slidably connected with supporting legs; the supporting legs are arranged in a T shape, so that the stability of the supporting legs is improved; the outer walls of the supporting legs are provided with a plurality of limiting holes; the locking bolt is inserted into one of the limiting holes; the locking mechanism includes: a locking bolt; the locking bolt is connected to the right side of the connecting frame in a threaded manner; the left end of the locking bolt penetrates through the connecting frame and is inserted into the supporting leg; the right end of the locking bolt is fixedly connected with a second knob; the number of the locking mechanisms is two, and the two locking mechanisms are oppositely arranged at the left side and the right side of the connecting frame respectively.

Preferably, the top parts of the two connecting frames are fixedly connected with a rain shield; positioning pins are fixedly connected to four corners of the front face of the publicity board body respectively; the front of the poster is respectively provided with a locating hole matched with the locating pin, and the locating pin is movably sleeved in the locating hole.

(III) beneficial effects

Compared with the prior art, the utility model provides the publicity board convenient for changing the breadth, which has the following beneficial effects:

1. this publicity board convenient to change breadth can conveniently carry out quick replacement to the poster through hold-down mechanism and drive mechanism that set up, is difficult to cause the poster to damage, and can not remain glue etc. at publicity board body, easy dismounting.

2. This a publicity board convenient to change breadth can be with the supporting leg inside the link of receiving through the locking mechanism that sets up, accomodates conveniently, and is convenient for adjust the device's height, is convenient for teaching.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a right side cross-sectional view of the mounting box of the present utility model;

FIG. 3 is an enlarged view of the utility model at A;

fig. 4 is a front cross-sectional view of the connector of the present utility model.

In the figure: 1. a connecting frame; 2. a mounting box; 3. a publicity board body; 4. a poster; 5. a compressing mechanism; 51. a screw rod; 52. a moving block; 53. a fixing plate; 54. a spring; 55. a limit rod; 56. a belt pulley; 6. a pressing plate; 7. a transmission mechanism; 71. a rotating shaft; 72. bevel gears I; 73. bevel gears II; 74. a first knob; 8. support legs; 9. a locking mechanism; 91. a second knob; 92. a locking bolt; 10. a positioning pin; 11. rain shield.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Example 1

As shown in fig. 1-4, the utility model provides a publicity board convenient for changing breadth, which comprises two connecting frames 1, wherein the inside of the two connecting frames 1 is arranged in a hollow way, and the bottom of the two connecting frames 1 is provided with an opening; the top parts of the two connecting frames 1 are fixedly connected with a rain shield 11; two mounting boxes 2 fixedly connected to opposite faces of the two connecting frames 1; the opposite surfaces of the two mounting boxes 2 are provided with openings; publicity board body 3 fixedly connected to the inner walls of the back surfaces of two installation boxes 2; the poster 4 is arranged on the front surface of the publicity board body 3; the four corners of the front surface of the publicity board body 3 are respectively fixedly connected with positioning pins 10; the front surface of the poster 4 is respectively provided with a positioning hole matched with the positioning pin 10, and the positioning pin 10 is movably sleeved in the positioning holes; a pressing mechanism 5 is arranged in the mounting box 2; the compressing mechanism 5 is provided with a transmission mechanism 7; the pressing mechanism 5 includes: a screw rod 51 and a limit rod 55; the screw rod 51 is rotatably connected to the inner walls of the front and rear sides of the left mounting box 2 through bearings; the outer wall of the screw rod 51 is connected with a moving block 52 in a threaded manner; the right side of the moving block 52 is fixedly connected with a fixed plate 53; the back of the fixed plate 53 is fixedly connected with a spring 54; the limiting rod 55 is fixedly connected to the front inner wall of the installation box 2, and the rear end of the limiting rod 55 penetrates through the moving block 52 and is fixedly connected to the back inner wall of the installation box 2; the moving block 52 is limited by the limiting rod 55, so that the rotary motion of the moving block 52 is converted into horizontal motion; the outer wall of the screw rod 51 is fixedly sleeved with a belt pulley 56; the number of the pressing mechanisms 5 is four, the four pressing mechanisms 5 are respectively and oppositely arranged in the two mounting boxes 2, and the rear ends of the two groups of springs 54 positioned on the same side are fixedly connected with the pressing plates 6; the back of the pressing plate 6 is abutted with the front of the poster 4; two groups of belt pulleys 56 positioned on the same side are connected through belt transmission; the transmission mechanism 7 includes: a rotating shaft 71 and a bevel gear II 73; the rotating shaft 71 is rotatably connected to the inner wall of the bottom of the installation box 2 through a bearing; the bottom end of the rotating shaft 71 penetrates through the mounting box 2 and extends downwards; the top end of the rotating shaft 71 is fixedly connected with a bevel gear I72; the extension end of the rotating shaft 71 is fixedly connected with a first knob 74; the bevel gear II 73 is fixedly sleeved on the outer wall of the screw rod 51 and positioned on the screw rod 51 below; bevel gear two 73 meshes with bevel gear one 72; the number of the transmission mechanisms 7 is two, and the two transmission mechanisms 7 are respectively arranged on the two mounting boxes 2; the rotary shaft 71 is driven to rotate through the rotary knob I74, the rotary shaft 71 drives the bevel gear I72 to rotate, thereby the bevel gear I72 drives the bevel gear II 73 to rotate, the bevel gear II 73 drives the screw rod 51 to rotate, thereby the screw rod 51 drives the movable block 52 to rotate, simultaneously under the limit of the limit rod 55, the movable block 52 drives the fixed plate 53 to horizontally move, the fixed plate 53 drives the spring 54 to move, simultaneously, the screw rod 51 rotates to drive the belt pulley 56 to rotate, thereby the upper belt pulley 56 and the lower belt pulley 56 simultaneously rotate through the belt, thereby the upper spring 54 and the lower spring 54 drive the pressing plate 6 to move and compress the poster 4 on the poster body 3, simultaneously under the self elastic force of the spring 54, the abutting force of the pressing plate 6 is increased, the pressing plate 6 is tightly attached to the poster 4, otherwise, the pressing plate 6 can be separated from the poster 4 through the reverse rotation of the rotary knob I74, thereby the limit of the poster 4 is released, the poster 4 is conveniently replaced rapidly, the poster 4 is not damaged, glue and the like can not remain on the poster body 3, and the assembly and the disassembly are convenient.

In this embodiment, can conveniently carry out quick replacement to poster 4 through hold-down mechanism 5 and drive mechanism 7 that set up, be difficult to cause poster 4 to damage, and can not remain glue etc. at publicity board body 3, easy dismounting.

Example 2

As shown in fig. 1-4, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, the connecting frame 1 is provided with a locking mechanism 9; the inner walls of the two connecting frames 1 are respectively and slidably connected with supporting legs 8; the supporting legs 8 are arranged in a T shape, so that the stability of the supporting legs 8 is improved; the outer wall of the supporting leg 8 is provided with a plurality of limiting holes; the locking bolt 92 is inserted into one of the limiting holes; the lock mechanism 9 includes: a lock bolt 92; the locking bolt 92 is in threaded connection with the right side of the connecting frame 1; the left end of the locking bolt 92 penetrates through the connecting frame 1 and is inserted into the supporting leg 8; the right end of the locking bolt 92 is fixedly connected with a knob II 91; the number of the locking mechanisms 9 is two, and the two locking mechanisms 9 are respectively and oppositely arranged at the left side and the right side of the two connecting frames 1; make lock bolt 92 break away from spacing hole on supporting leg 8 through rotatory knob two 91, can adjust supporting leg 8, conveniently accomodate supporting leg 8, and be convenient for adjust the device's height simultaneously, be convenient for teaching.

In this embodiment, can receive supporting leg 8 inside link 1 through locking mechanism 9 that sets up, accomodate conveniently, and be convenient for adjust the device's height, be convenient for teaching.

The following specifically describes the working principle of the publicity board convenient for changing the breadth.

When in use, as shown in fig. 1-4, the limiting holes on the poster 4 are sleeved on the locating pins 10, the left side and the right side of the poster 4 are respectively extended into the two mounting boxes 2, the rotating shaft 71 is driven to rotate by the rotating knob I74, the rotating shaft 71 is driven to rotate the bevel gear I72, the bevel gear I72 is driven to rotate the bevel gear II 73, the bevel gear II 73 is driven to rotate the screw rod 51, the screw rod 51 is driven to rotate the moving block 52, simultaneously, under the limit of the limiting rod 55, the moving block 52 is driven to horizontally move by the fixing plate 53, the spring 54 is driven to move by the fixing plate 53, the belt pulley 56 is driven to rotate by the screw rod 51, and the upper belt pulley 56 and the lower belt pulley 56 are simultaneously rotated by a belt, thereby make two sets of springs 54 about drive clamp plate 6 remove and compress tightly poster 4 on publicity board body 3, increase clamp plate 6's tight dynamics of support under spring 54 self elasticity effect simultaneously, make clamp plate 6 and poster 4 closely laminate, otherwise, can make clamp plate 6 break away from poster 4 through reverse rotation knob one 74, thereby release the spacing to poster 4, conveniently carry out quick replacement to poster 4, make lock bolt 92 break away from spacing hole on supporting leg 8 through rotation knob two 91, can adjust supporting leg 8, conveniently accomodate supporting leg 8, and the height of the device of being convenient for to adjust simultaneously, be convenient for teaching.

Claims

1. A publicity board convenient for changing breadth comprises two connecting frames (1),

two mounting boxes (2) fixedly connected to opposite surfaces of the two connecting frames (1);

a publicity board body (3) fixedly connected to the inner walls of the back surfaces of the two installation boxes (2);

and a poster (4) arranged on the front surface of the publicity board body (3); the method is characterized in that: a pressing mechanism (5) is arranged in the installation box (2); the compressing mechanism (5) is provided with a transmission mechanism (7); a locking mechanism (9) is arranged on the connecting frame (1).

2. A promotional board according to claim 1 for facilitating replacement of a web, wherein: the pressing mechanism (5) comprises: a screw rod (51) and a limit rod (55); the screw rod (51) is rotatably connected to the inner walls of the front side and the rear side of the mounting box (2) at the left side through bearings; the outer wall of the screw rod (51) is connected with a moving block (52) through threads; a fixed plate (53) is fixedly connected to the right side of the moving block (52); the back of the fixed plate (53) is fixedly connected with a spring (54); the limiting rod (55) is fixedly connected to the front inner wall of the mounting box (2), and the rear end of the limiting rod (55) penetrates through the moving block (52) and is fixedly connected to the back inner wall of the mounting box (2); the outer wall of the screw rod (51) is fixedly sleeved with a belt pulley (56).

3. A promotional board according to claim 1 for facilitating replacement of a web, wherein: the transmission mechanism (7) comprises: a rotating shaft (71) and a bevel gear II (73); the rotating shaft (71) is rotatably connected to the inner wall of the bottom of the mounting box (2) through a bearing; the bottom end of the rotating shaft (71) penetrates through the mounting box (2) and extends downwards; the top end of the rotating shaft (71) is fixedly connected with a bevel gear I (72); the extension end of the rotating shaft (71) is fixedly connected with a first knob (74); the bevel gear II (73) is fixedly sleeved on the outer wall of the screw rod (51) and positioned on the screw rod (51) below; the bevel gear II (73) is meshed with the bevel gear I (72).

4. A promotional board according to claim 2 for facilitating replacement of a web, wherein: the number of the compressing mechanisms (5) is four, the four compressing mechanisms (5) are respectively and oppositely arranged in the two mounting boxes (2), and the rear ends of the two groups of springs (54) positioned on the same side are connected with a pressing plate (6); the back of the pressing plate (6) is abutted against the front of the poster (4).

5. A promotional board according to claim 1 for facilitating replacement of a web, wherein: the inner walls of the two connecting frames (1) are respectively and slidably connected with supporting legs (8); the locking mechanism (9) comprises: a locking bolt (92); the locking bolt (92) is in threaded connection with the right side of the connecting frame (1); the left end of the locking bolt (92) penetrates through the connecting frame (1) and is inserted into the supporting leg (8); the right end of the locking bolt (92) is fixedly connected with a knob II (91).

6. A promotional board according to claim 1 for facilitating replacement of a web, wherein: the top parts of the two connecting frames (1) are fixedly connected with a rain shield plate (11); positioning pins (10) are fixedly connected to four corners of the front surface of the publicity board body (3) respectively; the front of the poster (4) is respectively provided with a locating hole matched with the locating pin (10), and the locating pin (10) is movably sleeved in the locating hole.