Picture hanging device

Abstract

The utility model discloses a picture hanging device, and belongs to the technical field of teaching. Comprising a display board, a back board is arranged on the back face of the display board through four screws, a magnetic cover board is rotatably arranged on the display board, a rectangular groove is formed in the front face of a window, hanging lugs are symmetrically arranged at the upper end of the back board, an upper roller piece and a lower roller piece are arranged in the display board in an up-down parallel mode, and the upper roller piece and the lower roller piece are connected through a rolled picture. By arranging the driving assembly, a driving motor is started to drive a rotating rod to rotate, and two first bevel gears rotate to drive a second bevel gear to synchronously rotate, so that a rolled picture on a lower roller piece moves upwards and is continuously displayed at a window, the drawing education content is continuously switched, pictures are conveniently adjusted and switched at any time, and the teaching efficiency is improved. And the continuity of the education content is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of teaching, more particularly, to a hanging picture device. BACKGROUND

[0002] In the ideological and political teaching in colleges and universities, not only books and multimedia are needed, but also pictures are needed to cooperate with teaching to achieve better teaching effect, and the hanging picture device is a tool for fixing and displaying pictures.

[0003] The patent with the authorized announcement number CN222091181U provides a hanging picture device, which comprises a supporting seat, an adjusting rod is slidably connected inside the supporting seat, and a lifting column is welded and fixed to the upper end of the adjusting rod; further comprising: a worm is arranged at the top end of the lifting column, the lower end of the worm penetrates the lifting column, the lifting column is in bearing connection with the lower end of the worm, the outer side surface of the worm is meshed with a worm wheel, the middle of the worm wheel is fixed with a rotating shaft, and the outer end of the rotating shaft is fixed with a display rod; the worm is provided with two sections, and the outer side surfaces of the two sections of the worm are meshed with two groups of worm wheels.

[0004] Although the prior technical scheme in the above can drive the inner end of the clamping rod to be clamped into the clamping hole through the elastic force of the reset spring, thereby realizing the limiting of the adjusting rod again and the height adjustment effect of the hanging picture device, the existing hanging picture device has limited picture content for single display, and it is time-consuming and laborious to store and expand the pictures after replacing the pictures up and down, and multiple pictures cannot be flexibly adjusted and switched at any time, so that the continuity of picture display cannot be achieved in education.

[0005] In view of this, a hanging picture device is proposed. CONTENT OF THE INVENTION

[0006] 1. TECHNICAL PROBLEM TO BE SOLVED

[0007] The present application aims to provide a hanging picture device, which solves the technical problem that the existing hanging picture device has limited picture content for single display, it is time-consuming and laborious to store and expand the pictures after replacing the pictures up and down, and multiple pictures cannot be flexibly adjusted and switched at any time, so that the continuity of picture display cannot be achieved in education, and achieves the technical effect that the picture content of the hanging picture device can be flexibly switched, and the picture roller is convenient to disassemble periodically.

[0008] 2. TECHNICAL SCHEME

[0009] The application provides a hanging picture device, which comprises a display board, a back plate is arranged on the back of the display board through four screws, a magnetic cover plate is rotationally arranged on the display board, a rectangular slot is formed on the front of the display board, hanging ears are symmetrically arranged on the upper end of the back plate, upper roller pieces and lower roller pieces are arranged in parallel on the inside of the display board, and the upper roller pieces and the lower roller pieces are connected through picture winding; a limiting assembly and a driving assembly are arranged on the two sides of the inside of the display board respectively, the driving assembly comprises a driving motor, a rotating rod is connected to the top output shaft of the driving motor, first bevel gears are arranged on the rotating rod, second bevel gears are meshingly arranged on one side of the two first bevel gears, connecting parts are connected to one side of the second bevel gears, and the connecting parts respectively transversely penetrate the inside of the upper roller pieces and the lower roller pieces.

[0010] Preferably, auxiliary plates are arranged in parallel on the inside of the display board, bearings are arranged in the auxiliary plates, and the connecting parts are rotationally connected to the inside of the auxiliary plates.

[0011] Preferably, a window is embedded on the front of the display board.

[0012] Preferably, the connecting part comprises a connecting rod, a limiting ring is arranged on one side of the connecting rod, and a limiting rod is arranged on one side of the limiting ring.

[0013] Preferably, a screw rod is rotationally connected to one end of the limiting rod, and a bolt is threadedly mounted on the outer side of the screw rod.

[0014] Preferably, a supporting hole is formed below the screw rod, a sliding groove and a positioning plate are formed in the inside of the display board, a sliding block is slidably arranged in the sliding groove, a lead screw is threadedly inserted into the inside of one end of the sliding block, the lead screw is rotationally connected to one side of the two positioning plates, a recessed plate is arranged on one side of the sliding block, a carrying rod is arranged on the upper side of the end of the recessed plate, and the carrying rod can move up and down and be clamped into the supporting hole below the screw rod.

[0015] Preferably, a power supply interface and a control button of the driving motor are arranged on one side of the display board.

[0016] 3. Beneficial effects

[0017] One or more technical solutions provided in the embodiments of the application have at least the following technical effects or advantages:

[0018] (1) The driving assembly is arranged, the driving motor is started, the rotating rod is driven to rotate, the two first bevel gears are rotated to drive the second bevel gears to synchronously rotate, the picture winding on the lower roller piece moves upward, and the picture winding is continuously displayed at the window, so that the picture education content is continuously switched, the picture is conveniently adjusted and switched at any time, and the coherence of the education content is ensured.

[0019] (2) The application sets the limiting assembly, screw rod and bolt, rotates the lead screw to make the sliding block slide up and down, drives the concave plate to move downward, makes the mounting rod leave the lower side of the screw rod, dismounts the bolt from the screw rod, then can slide the upper roller and the lower roller out from one side synchronously, and facilitates to install and replace the new reel drawing for use. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the first three-dimensional structure schematic view of the utility model;

[0021] Figure 2 It is the second three-dimensional structure schematic view of the utility model;

[0022] Figure 3 It is the connecting part three-dimensional structure schematic view of the utility model;

[0023] Figure 4 It is the limiting assembly three-dimensional structure schematic view of the utility model;

[0024] Mark number explanation in the drawing: 110, display board; 111, backboard; 112, magnetic cover plate; 113, hanging ear; 114, window; 120, connecting part; 121, connecting rod; 122, limiting ring; 123, limiting rod; 124, screw rod; 125, bolt; 130, auxiliary plate; 140, upper roller; 141, lower roller; 200, limiting assembly; 210, sliding groove; 211, concave plate; 212, sliding block; 213, positioning plate; 214, lead screw; 215, mounting rod; 300, driving assembly; 310, driving motor; 311, first bevel gear; 312, second bevel gear; 313, rotating rod. DETAILED DESCRIPTION

[0025] The application is further explained in detail in combination with the drawings of the specification.

[0026] Example one

[0027] Please refer to Figures 1-4The utility model provides an embodiment: a picture hanging device, including the display board 110, the back of display board 110 is provided with backplate 111 through four screws, display board 110 rotationally arranged has magnet cover plate 112, the rectangular slot is seted up in the front of window 114, the hanging ear 113 is symmetrically seted up on backplate 111 upper end, display board 110 inside upper and lower parallelly arranged has upper roller piece 140 and lower roller piece 141, and upper roller piece 140 and lower roller piece 141 are connected through the picture of rolling, limiting assembly 200 and drive assembly 300, limiting assembly 200 and drive assembly 300 are arranged respectively in display board 110 inside both sides, drive assembly 300 includes drive motor 310, and the output shaft of drive motor 310 top end is connected with rotating rod 313, and rotating rod 313 is provided with first bevel gear 311, and two first bevel gears 311 one side is engaged with second bevel gear 312, and second bevel gear 312 one side is connected with connecting portion 120, and connecting portion 120 respectively transversely passes through upper roller piece 140 and lower roller piece 141 inside, and the power connection of drive motor 310 and control button of one side of display board 110 are provided with drive motor 310, (reference Figure 2 ) drive motor 310 starts, drives rotating rod 313 to rotate, and two first bevel gears 311 rotation will drive second bevel gear 312 to rotate synchronously, so that the picture of lower roller piece 141 is moved upwards, and is constantly displayed in the front of display board 110, to constantly switch the educational content of drawing, and it is convenient to adjust and switch at any time, guarantees the coherence of educational content.

[0028] Further, display board 110 inside upper and lower set up has auxiliary plate 130, and the bearing is seted up in auxiliary plate 130 inside, and connecting portion 120 and auxiliary plate 130 inside rotationally connect. Auxiliary plate 130 mainly guarantees that upper roller piece 140 and lower roller piece 141 unilateral stable support.

[0029] Further, display board 110 front surface is embedded with window 114, (reference Figure 1 ) it is convenient to clearly watch picture content, protects picture.

[0030] Further, connecting portion 120 includes connecting rod 121, and the one side of connecting rod 121 is provided with limiting ring 122, and the one side of limiting ring 122 is provided with limiting rod 123, and the one end of limiting rod 123 rotationally connects with screw rod 124, and the outer side of screw rod 124 is screw-mounted with bolt 125. (reference Figure 3) The connecting rod 121 rotates to drive the limiting rod 123 to rotate, which ensures that the upper roller 140 and the lower roller 141 can be smoothly rotated and avoid relative sliding. The screw rod 124 and the bolt 125 can limit the upper roller 140 and the lower roller 141. When the limiting rod 123 rotates, the bottom of the screw rod 124 cooperates with the limiting assembly 200 to be fixed and supported, and does not rotate, which ensures that the upper roller 140 and the lower roller 141 are stable on both sides, avoids pressure concentration on one side, and mainly prolongs the service life of the connecting part 120.

[0031] Further, a supporting hole is formed below the screw rod 124, and the limiting assembly 200 comprises a sliding groove 210 and a positioning plate 213 formed in the display board 110. A sliding block 212 is slidably arranged in the sliding groove 210. A lead screw 214 is screwed into one end of the sliding block 212. The lead screw 214 is rotatably connected to one side of the two positioning plates 213. A recessed plate 211 is arranged on one side of the sliding block 212. A mounting rod 215 is arranged on the upper side of the end of the recessed plate 211, and the mounting rod 215 can move up and down and is clamped into the supporting hole below the screw rod 124. Figure 4 By rotating the lead screw 214, the sliding block 212 moves up and down, the recessed plate 211 moves downward, the mounting rod 215 moves away from below the screw rod 124, the bolt 125 is disassembled from the screw rod 124, and then the upper roller 140 and the lower roller 141 can be synchronously slid out from one side, and new roll paper can be used.

[0032] In summary, when the hanging picture device is used, the driving motor 310 is started to drive the rotating rod 313 to rotate. The rotation of the two first bevel gears 311 drives the second bevel gear 312 to rotate synchronously, so that the roll picture on the lower roller 141 moves upward and is continuously displayed in front of the display board 110, so as to continuously switch the educational content of the picture, which is convenient for adjusting and switching at any time and ensures the coherence of the educational content. The connecting rod 121 rotates to drive the limiting rod 123 to rotate, which ensures that the upper roller 140 and the lower roller 141 can be smoothly rotated and avoid relative sliding. The screw rod 124 and the bolt 125 can limit the upper roller 140 and the lower roller 141. When the limiting rod 123 rotates, the bottom of the screw rod 124 cooperates with the limiting assembly 200 to be fixed and supported, and does not rotate, which ensures that the upper roller 140 and the lower roller 141 are stable on both sides, avoids pressure concentration on one side, and mainly prolongs the service life of the connecting part 120, by rotating the lead screw 214, the sliding block 212 moves up and down, the recessed plate 211 moves downward, the mounting rod 215 moves away from below the screw rod 124, the bolt 125 is disassembled from the screw rod 124, and then the upper roller 140 and the lower roller 141 can be synchronously slid out from one side, and new roll paper can be used.

[0033] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, the conventional connection mode in the prior art is adopted for circuit connection, and details are not described herein, and the contents not described in detail in the description belong to the prior art known by the person skilled in the art.

[0034] Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement and the like within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A display device, characterized by: Comprising The display board (110) is provided with a back plate (111) on the back by four screws, the display board (110) is rotatably provided with a magnetic cover plate (112), the display board (110) is provided with a rectangular slot on the front, the back plate (111) is provided with a hanging ear (113) on the upper end symmetrically, the display board (110) is provided with an upper roller (140) and a lower roller (141) inside up and down, and the upper roller (140) and the lower roller (141) are connected by rolling. The limiting assembly (200) and the driving assembly (300) are arranged on both sides of the display board (110) respectively, the driving assembly (300) comprises a driving motor (310), the driving motor (310) is connected with a rotating rod (313) on the top output shaft, the rotating rod (313) is provided with a first bevel gear (311), two first bevel gears (311) are provided with a second bevel gear (312) on one side, the second bevel gear (312) is connected with a connecting part (120) on one side, and the connecting part (120) penetrates through the inside of the upper roller (140) and the lower roller (141) respectively.

2. The display device of claim 1, wherein: The display board (110) is provided with an auxiliary plate (130) inside up and down, the auxiliary plate (130) is provided with a bearing inside, and the connecting part (120) and the auxiliary plate (130) are rotatably connected.

3. The display device of claim 1, wherein: The display board (110) is embedded with a window (114) on the front.

4. The display device of claim 1, wherein: The connecting part (120) comprises a connecting rod (121), the connecting rod (121) is provided with a limiting ring (122) on one side, and the limiting ring (122) is provided with a limiting rod (123) on one side.

5. The display device of claim 4, wherein: The limiting rod (123) is rotatably connected with a screw rod (124) on one end, and the screw rod (124) is externally threaded with a bolt (125).

6. The display device of claim 5, wherein: The screw rod (124) is provided with a supporting hole below, the limiting assembly (200) is provided with a sliding groove (210) and a positioning plate (213) inside the display board (110), the sliding groove (210) is provided with a sliding block (212) inside, the sliding block (212) is internally threaded with a lead screw (214) on one end, the lead screw (214) is rotatably connected with two positioning plates (213) on both sides, the sliding block (212) is provided with a recessed plate (211) on one side, the recessed plate (211) is provided with a carrying rod (215) on the upper side of the end portion, and the carrying rod (215) can move up and down and be clamped into the supporting hole below the screw rod (124).

7. The display device of claim 1, wherein: The display board (110) is provided with a power supply interface and a control button of the driving motor (310) on one side.

Images