CN216443361U

CN216443361U - Music theory learning device

Info

Publication number: CN216443361U
Application number: CN202122777374.2U
Authority: CN
Inventors: 李花; 陈言
Original assignee: Zhengzhou Institute of Finance and Economics
Current assignee: Zhengzhou Institute of Finance and Economics
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-05-06
Anticipated expiration: 2031-11-15

Abstract

The utility model discloses a music theory learning device which comprises a fixing plate and a pressing mechanism, wherein the upper end face of the fixing plate is fixedly connected with a speed reducing motor, a cavity is formed in the fixing plate, the output end of the speed reducing motor penetrates through the cavity and is fixedly connected with a first rotating rod, and a first gear is fixedly sleeved on the first rotating rod. According to the blackboard eraser, the sliding plate, the push block and the cleaning eraser are matched, so that the cleaning eraser can be tightly attached to a blackboard, the cleaning eraser is prevented from being separated from the blackboard, and the cleaning effect of the blackboard eraser is improved; through the cooperation setting of gear motor, first gear and second gear, can drive first dwang and second dwang and rotate, through the cooperation setting of reel, stay cord and straight section of thick bamboo, can drive the cleanness and wipe and reciprocate to clean the blackboard, do not need manual operation, save time and strength, and then improved user experience of user.

Description

Music theory learning device

Technical Field

The utility model relates to the technical field of music theory learning devices, in particular to a music theory learning device.

Background

Music theory is relatively abstract and difficult to understand and master by ordinary people, and the music theory is called music theory for short, and comprises relatively simple basic theory, music reading, musical interval, chord, rhythm, beat and the like. There are also relatively high-level, harmonic, polyphonic, melodic, orchestrated, etc. content. The mastering of music theory has important positive significance for composing music, commanding and playing. The theory of music in our usual language generally refers to the basic part of music theory, namely "basic music".

The teacher need write on the blackboard usually when teaching music theory knowledge, but needs the manual work to clean the blackboard, wastes time and energy, and then has reduced user's use and has experienced.

In order to solve the above problems, a music theory learning device is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects that in the prior art, a teacher usually needs to write on a blackboard when teaching music theory knowledge, but the blackboard needs to be wiped manually, so that time and labor are wasted, and the use experience of a user is reduced, and accordingly, the music theory learning device is provided.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a music theory learning device comprises a fixed plate and a pressing mechanism, wherein a speed reducing motor is fixedly connected to the upper end face of the fixed plate, a cavity is formed in the fixed plate, the output end of the speed reducing motor penetrates through the cavity and is fixedly connected with a first rotating rod, a first gear is fixedly sleeved on the first rotating rod, one side of the first gear is meshed and connected with a second gear, a second rotating rod is vertically and fixedly inserted in the center of the second gear, rolling wheels are fixedly sleeved on the first rotating rod and the second rotating rod, a pull rope is fixedly connected to each rolling wheel, a groove is formed in the side wall of the fixed plate, the other ends of the two pull ropes penetrate through the cavity and are fixedly connected with a straight cylinder together, two sliding blocks are symmetrically and fixedly connected to the left end and the right end of the straight cylinder, two sliding grooves are symmetrically formed in the groove, and a sliding rod is fixedly connected to each sliding groove, each sliding block is sleeved on a sliding rod in a sliding mode, and each sliding rod is sleeved with a first spring in a sleeved mode.

Preferably, hold-down mechanism includes the slide, slide sliding connection is on the inner wall of straight section of thick bamboo, a plurality of second springs of equidistant fixedly connected with in one side of slide, every the equal fixed connection of the other end of second spring is on the inner wall of straight section of thick bamboo, the opposite side fixedly connected with ejector pad of slide, the other end of ejector pad runs through the lateral wall of straight section of thick bamboo and the clean wiping of fixedly connected with, ejector pad sliding connection is in the inner wall of straight section of thick bamboo.

Preferably, the inner wall of the cavity is symmetrically and fixedly connected with two support rods, the upper end of each support rod is rotatably connected with a rotating wheel, and the two pull ropes are slidably connected to the rotating wheels.

Preferably, the lower extreme of first dwang rotates to be connected on the inner wall of cavity, the upper and lower both ends of second dwang all rotate to be connected on the inner wall of cavity.

Preferably, two ends of the two first springs are respectively and fixedly connected to the side wall of the sliding block and the inner wall of the sliding groove, and the two pull ropes are respectively and slidably connected to the inner wall of the fixing plate.

Preferably, the blackboard is fixedly connected to the groove, and the placing plate is fixedly connected to the groove.

Compared with the prior art, the utility model has the beneficial effects that:

the cleaning eraser can be tightly attached to the blackboard through the matching arrangement of the sliding plate, the pushing block and the cleaning eraser, so that the cleaning eraser is prevented from being separated from the blackboard, and the cleaning effect of the device is improved; through the cooperation setting of gear motor, first gear and second gear, can drive first dwang and second dwang and rotate, through the cooperation setting of reel, stay cord and straight section of thick bamboo, can drive the cleanness and wipe and reciprocate to clean the blackboard, do not need manual operation, save time and strength, and then improved user experience of user.

Drawings

Fig. 1 is a schematic perspective view of a straight tube in a music theory learning device according to the present invention;

FIG. 2 is a schematic front sectional view of a music theory learning apparatus according to the present invention;

FIG. 3 is a schematic side view of a straight cylinder of the music theory learning device according to the present invention;

fig. 4 is an enlarged schematic structural diagram of a point a in fig. 2 according to the present invention.

In the figure: the blackboard cleaning machine comprises a fixing plate 1, a speed reducing motor 2, a first rotating rod 3, a first gear 4, a second gear 5, a winding wheel 6, a pull rope 7, a straight cylinder 8, a sliding block 9, a sliding rod 10, a first spring 11, a rotating wheel 12, a sliding plate 13, a second spring 14, a pushing block 15, a cleaning eraser 16, a blackboard 17 and a placing plate 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-4, a music theory learning device comprises a fixed plate 1 and a pressing mechanism, wherein a speed reduction motor 2 is fixedly connected to the upper end surface of the fixed plate 1, a cavity is formed in the fixed plate 1, the output end of the speed reduction motor 2 penetrates through the cavity and is fixedly connected with a first rotating rod 3, a first gear 4 is fixedly sleeved on the first rotating rod 3, one side of the first gear 4 is engaged and connected with a second gear 5, a second rotating rod is vertically and fixedly inserted in the center of the second gear 5, a reel 6 is fixedly sleeved on the first rotating rod 3 and the second rotating rod, a pull rope 7 is fixedly connected on each reel 6, a groove is formed in the side wall of the fixed plate 1, the other ends of the two pull ropes 7 penetrate through the cavity and are fixedly connected with a straight cylinder 8 together, two sliders 9 are symmetrically and fixedly connected to the left end and the right end of the straight cylinder 8, and two chutes are symmetrically formed in the groove, equal fixedly connected with slide bar 10 in every spout, every slider 9 all slides and cup joints on slide bar 10, first spring 11 has all been cup jointed on every slide bar 10, through gear motor 2, the cooperation setting of first gear 4 and second gear 5, can drive first dwang 3 and second dwang and rotate, through take-up pulley 6, stay cord 7 and the cooperation setting of a straight section of thick bamboo 8, can drive clean 16 of wiping and reciprocate, thereby clean blackboard 17, do not need manual operation, save time and strength, and then user experience of user has been improved.

Wherein, hold-down mechanism includes slide 13, slide 13 sliding connection is on the inner wall of straight section of thick bamboo 8, a plurality of second springs 14 of fixedly connected with of equidistant one side of slide 13, the equal fixed connection of the other end of every second spring 14 is on the inner wall of straight section of thick bamboo 8, the opposite side fixedly connected with ejector pad 15 of slide 13, the other end of ejector pad 15 runs through the lateral wall of straight section of thick bamboo 8 and the clean 16 of wiping of fixedly connected with, ejector pad 15 sliding connection is in the inner wall of straight section of thick bamboo 8, through slide 13, the cooperation setting of ejector pad 15 and clean 16 of wiping, can make clean 16 of wiping hug closely on blackboard 17, prevent to break away from between clean 16 and the blackboard 17 of wiping, the clean effect of device has been improved.

Wherein, two bracing pieces of symmetry fixedly connected with on the inner wall of cavity, the upper end of every bracing piece all rotates and is connected with and rotates wheel 12, and two stay cords 7 all sliding connection are on rotating wheel 12, and the bracing piece can play the effect of support to rotating wheel 12.

Wherein, the lower extreme of first dwang 3 rotates to be connected on the inner wall of cavity, and the upper and lower both ends of second dwang are all rotated and are connected on the inner wall of cavity, and first dwang 3 and second dwang can drive the reel 6 and rotate.

Wherein, two ends of two first springs 11 are respectively fixedly connected on the side wall of the sliding block 9 and the inner wall of the sliding groove, two pull ropes 7 are respectively connected in the inner wall of the fixing plate 1 in a sliding manner, and the first springs 11 have the reset effect on the straight cylinder 8.

Wherein, fixedly connected with blackboard 17 in the recess, fixedly connected with places board 18 in the recess, and the user can write on blackboard 17.

When the blackboard 17 needs to be wiped, the speed reducing motor 2 is started to intermittently rotate forwards and reversely, when the speed reducing motor 2 rotates forwards, the output end of the speed reducing motor drives the first rotating rod 3 to rotate, the first rotating rod 3 drives the first gear 4 to rotate, the first gear 4 drives the second rotating rod to rotate through the second gear 5, the second rotating rod and the first rotating rod 3 drive the rolling wheel 6 to rotate, the rolling wheel 6 drives the straight cylinder 8 to move upwards through the pull rope 7 and stretch the first spring 11, so that the first spring 11 generates opposite elastic force, the straight cylinder 8 drives the cleaning wiper 16 to move upwards through the push block 15, so that the blackboard 17 is wiped, when the speed reducing motor 2 rotates reversely, the straight cylinder 8 moves downwards under the elastic force of the first spring 11, the straight cylinder 8 drives the cleaning wiper 16 to move downwards, the blackboard 17 is cleaned again, and the cleaning effect is better; through the matching arrangement of the sliding plate 13, the push block 15 and the cleaning eraser 16, the cleaning eraser 16 can be tightly attached to the blackboard 17, the separation between the cleaning eraser 16 and the blackboard 17 is prevented, and the cleaning effect of the device is improved; through gear motor 2, first gear 4 and second gear 5's cooperation setting, can drive first dwang 3 and second dwang and rotate, through the cooperation setting of winding wheel 6, stay cord 7 and straight section of thick bamboo 8, can drive clean 16 of wiping and reciprocate to clean blackboard 17, do not need manual operation, save time and strength, and then improved user experience of user.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a music theory learning device, includes fixed plate (1) and hold-down mechanism, its characterized in that, the up end fixedly connected with gear motor (2) of fixed plate (1), the cavity has been seted up in fixed plate (1), the output of gear motor (2) runs through cavity and fixedly connected with first dwang (3), it has first gear (4) to fix the cover on first dwang (3), one side meshing of first gear (4) is connected with second gear (5), the vertical fixed interlude of center department of second gear (5) has the second dwang, all fix the cover on first dwang (3) and the second dwang and have reel (6), every all fixedly connected with stay cord (7) on reel (6), set up flutedly on the lateral wall of fixed plate (1), two the other end of stay cord (7) all runs through the cavity and common fixedly connected with straight section of thick bamboo (8), two sliders (9) are symmetrically and fixedly connected to the left end and the right end of the straight cylinder (8), two sliding grooves are symmetrically formed in the groove, each sliding groove is internally and fixedly connected with a sliding rod (10), each slider (9) is sleeved on the sliding rod (10) in a sliding mode, and each sliding rod (10) is sleeved with a first spring (11).

2. A music theory learning device according to claim 1, wherein the pressing mechanism comprises a sliding plate (13), the sliding plate (13) is slidably connected to the inner wall of the straight cylinder (8), one side of the sliding plate (13) is fixedly connected with a plurality of second springs (14) at equal intervals, the other end of each second spring (14) is fixedly connected to the inner wall of the straight cylinder (8), the other side of the sliding plate (13) is fixedly connected with a pushing block (15), the other end of the pushing block (15) penetrates through the side wall of the straight cylinder (8) and is fixedly connected with a cleaning wiper (16), and the pushing block (15) is slidably connected to the inner wall of the straight cylinder (8).

3. A music theory learning device according to claim 1, wherein two support rods are symmetrically and fixedly connected to the inner wall of the cavity, the upper end of each support rod is rotatably connected with a rotating wheel (12), and the two pull ropes (7) are slidably connected to the rotating wheels (12).

4. A music theory learning device according to claim 1, characterized in that the lower end of the first rotating rod (3) is rotatably connected to the inner wall of the cavity, and the upper and lower ends of the second rotating rod are rotatably connected to the inner wall of the cavity.

5. A music theory learning device according to claim 1, characterized in that two ends of the first springs (11) are fixedly connected to the side wall of the sliding block (9) and the inner wall of the sliding groove respectively, and the two pull ropes (7) are slidably connected to the inner wall of the fixed plate (1) respectively.

6. A music theory learning device according to claim 1, characterized in that a blackboard (17) is fixedly connected in the groove, and a placing plate (18) is fixedly connected in the groove.