CN212484659U

CN212484659U - Music basic theory demonstration board

Info

Publication number: CN212484659U
Application number: CN202021671059.0U
Authority: CN
Inventors: 蒋明云; 刘利
Original assignee: Gansu Agricultural University
Current assignee: Gansu Agricultural University
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2021-02-05
Anticipated expiration: 2030-08-12

Abstract

The utility model discloses a music theory demonstration board basically, which comprises a base, the equal fixedly connected with support frame in top both sides of base, it is connected with the rotating turret, two to rotate on the support frame the same U-shaped frame of one end fixedly connected with that the rotating turret is close to each other, two spouts, two have been seted up to the symmetry on the U-shaped frame common sliding connection has T shape carriage in the spout. The utility model discloses a set up reel, lifting spring and lifting rope, rotate the rocker, the rocker makes the reel rotate to make the wire winding wheel to lifting rope receive line and unwrapping wire, under lifting spring's elastic action, can make demonstration board body shift up and descend, thereby can highly adjust rock demonstration board body, it is more convenient to use.

Description

Music basic theory demonstration board

Technical Field

The utility model relates to a demonstration board technical field especially relates to music basic theory demonstration board.

Background

The demonstration board is as the instrument that the teaching of music teacher took lessons, and the teacher will be marked with the chalk on the demonstration board usually, will be relevant theoretical knowledge, show on the demonstration board to make classmates can directly perceivedly know the knowledge point of imparting knowledge, mark important knowledge point from the demonstration board, the classmates of being convenient for are made the record, and the postclass of being convenient for consolidates.

However, the existing demonstration boards for basic theory of music are all fixed in height, and cannot be adjusted in height, so that the use is very inconvenient.

Therefore, a basic theory demonstration board for music is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the height of the demonstration board for the basic theory of music in the prior art is fixed, the height of the demonstration board cannot be adjusted, and the demonstration board for the basic theory of music is provided.

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

music theory demonstration board basically, including the base, the equal fixedly connected with support frame in top both sides of base, it is connected with the rotating turret, two to rotate on the support frame the same U-shaped frame of one end fixedly connected with that the rotating turret is close to each other, two spouts, two have been seted up to the symmetry on the U-shaped frame common sliding connection has T shape carriage in the spout, fixedly connected with demonstration board body on the front end lateral wall of T shape carriage, it is connected with the wire wheel to rotate on the T shape carriage, the bottom fixedly connected with telescopic link and the lift spring of T shape carriage, the wire has cup jointed the lift rope on taking turns, it is connected with the pivot to rotate on the U-shaped frame, interference fit has reel and rocker in the pivot.

Optionally, the base is of a rectangular structure, the support frame is of a cylindrical structure, one end of the rotating frame is fixedly connected with a knob, and the knob is of a round cake-shaped structure.

Optionally, a first limiting hole is formed in the knob, the first limiting holes are circumferentially and uniformly distributed on the knob, a limiting groove is formed in one of the supporting frames, and a first limiting bolt is in threaded connection with the limiting groove and the first limiting hole.

Optionally, the other end of the telescopic rod is fixedly connected to the U-shaped frame, the lifting spring is sleeved on the telescopic rod, and the other end of the lifting spring is fixedly connected to one end side wall of the U-shaped frame.

Optionally, one end of the lifting rope is fixedly connected to the U-shaped frame, the other end of the lifting rope is fixedly connected to the outer wall of the reel, and the lifting rope is wound with the reel.

Optionally, the U-shaped frame and the rocker are both provided with second limiting holes, the second limiting holes are circumferentially and uniformly distributed on the U-shaped frame, and second limiting bolts are in threaded connection in the second limiting holes.

Compared with the prior art, the utility model discloses possess following advantage:

1. the utility model discloses a set up reel, lifting spring and lifting rope, rotate the rocker, the rocker makes the reel rotate to make the wire winding wheel to lifting rope receive line and unwrapping wire, under lifting spring's elastic action, can make demonstration board body shift up and descend, thereby can highly adjust rock demonstration board body, it is more convenient to use.

2. The utility model discloses a set up knob and rotating turret, rotate the knob, the knob makes the rotating turret rotate, and the rotating turret makes the U-shaped frame rotate, and the U-shaped frame makes the demonstration board rotate, then inserts first spacing hole and spacing groove with first spacing bolt, can make demonstration board turned angle and fixed, and it is more convenient to use.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a sectional view of the structure of the present invention;

FIG. 3 is a rear view of the structure of the present invention;

fig. 4 is an enlarged schematic view of a portion a of fig. 2.

In the figure: the demonstration board comprises a base 1, a U-shaped frame 2, a demonstration board body 3, a sliding frame 4T-shaped, a rotating frame 5, a supporting frame 6, a knob 7, a first limiting bolt 8, a telescopic rod 9, a lifting spring 10, a lifting rope 11, a sliding chute 12, a limiting groove 13, a first limiting hole 14, a rocker 15, a rotating shaft 16, a wire guide wheel 17, a second limiting bolt 18, a second limiting hole 19 and a reel 20.

Detailed Description

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

Referring to fig. 1-4, music theory of the basic demonstration board, including base 1, base 1 is the rectangle structure, the equal fixedly connected with support frame 6 in top both sides of base 1, support frame 6 is the cylindrical structure, it is connected with rotating turret 5 to rotate on the support frame 6, the one end fixedly connected with knob 7 of one of them rotating turret 5, knob 7 is the cake shape structure, first spacing hole 14 has been seted up on knob 7, a plurality of first spacing holes 14 are circumference evenly distributed on knob 7, spacing groove 13 has been seted up on one of them support frame 6, equal threaded connection has first stop bolt 8 in spacing groove 13 and the first spacing hole 14.

The end that two rotating turret 5 are close to each other fixedly connected with same U-shaped frame 2, two spouts 12 have been seted up to the symmetry on the U-shaped frame 2, and common sliding connection has T shape carriage 4 in two spouts 12.

Fixedly connected with demonstration board body 3 on the front end lateral wall of T shape carriage 4, the last rotation of T shape carriage 4 is connected with wire wheel 17, and the bottom fixedly connected with telescopic link 9 and the lifting spring 10 of T shape carriage 4.

The other end fixed connection of telescopic link 9 is on U-shaped frame 2, and lifting spring 10 cover is established on telescopic link 9, and lifting spring 10's the other end and the one end lateral wall fixed connection of U-shaped frame 2 have cup jointed lifting rope 11 on the wire wheel 17.

The U-shaped frame 2 is rotatably connected with a rotating shaft 16, the rotating shaft 16 is provided with a reel 20 and a rocker 15 in an interference fit mode, one end of the lifting rope 11 is fixedly connected onto the U-shaped frame 2, the other end of the lifting rope 11 is fixedly connected onto the outer wall of the reel 20, and the lifting rope 11 is in winding connection with the reel 20.

Second limiting holes 19 are formed in the U-shaped frame 2 and the rocker 15, the second limiting holes 19 are circumferentially and uniformly distributed on the U-shaped frame 2, and second limiting bolts 18 are connected in the second limiting holes 19 in a threaded mode.

The working principle is as follows:

when the demonstration board is used, firstly, the rocker 15 is rotated, the reel 20 pays off the lifting rope 11, under the elastic action of the lifting spring 10, the lifting spring 10 and the telescopic rod 9 extend simultaneously, the T-shaped sliding frame 4 slides upwards in the sliding groove 12, the T-shaped sliding frame 4 enables the demonstration board body 3 to move upwards, so that the height of the demonstration board body 3 is increased, similarly, the rocker 15 is rotated reversely, the reel 20 takes up the rope lowering rope 11, the lifting spring 10 and the telescopic rod 9 contract simultaneously, the T-shaped sliding frame 4 drives the demonstration board body 3 to move downwards, so that the height of the demonstration board body 3 is reduced, then the second limiting bolt 18 is inserted into the second limiting hole 19, the height of the demonstration board body 3 is fixed, in addition, the first limiting screw 8 is pulled out of the first limiting hole 14 and the limiting groove 13, then the knob 7 is rotated, the knob 7 enables the rotating frame 5 to rotate, the rotating frame 5 enables the U-shaped frame 2 to rotate, the U-shaped frame 2 enables the demonstration board body 3 to rotate, then the first limiting bolt 8 is inserted into the first limiting hole 14 and the limiting groove 13, the rotation angle of the demonstration board body 3 can be enabled to be fixed, and the use is more convenient.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The music basic theory demonstration board comprises a base (1) and is characterized in that two sides of the top end of the base (1) are fixedly connected with a support frame (6), the support frame (6) is rotatably connected with a rotating frame (5), one end, close to each other, of each rotating frame (5) is fixedly connected with the same U-shaped frame (2), the U-shaped frame (2) is symmetrically provided with two sliding grooves (12), the two sliding grooves (12) are commonly and slidably connected with a T-shaped sliding frame (4), the front end side wall of the T-shaped sliding frame (4) is fixedly connected with a demonstration board body (3), the T-shaped sliding frame (4) is rotatably connected with a wire guide wheel (17), the bottom end of the T-shaped sliding frame (4) is fixedly connected with a telescopic rod (9) and a lifting spring (10), and the wire guide wheel (17) is sleeved with a lifting rope (11), the U-shaped frame (2) is rotatably connected with a rotating shaft (16), and a reel (20) and a rocker (15) are arranged on the rotating shaft (16) in an interference fit manner.

2. The music theory of elementary presentation board of claim 1, characterized in that the base (1) is of a rectangular configuration, the support frame (6) is of a cylindrical configuration, one end of one of the turrets (5) is fixedly connected with a knob (7), and the knob (7) is of a pie configuration.

3. The music theory of elementary presentation board of claim 2, wherein the knob (7) is provided with a first limiting hole (14), the first limiting holes (14) are circumferentially and uniformly distributed on the knob (7), one of the support frames (6) is provided with a limiting groove (13), and the limiting groove (13) and the first limiting hole (14) are both in threaded connection with a first limiting bolt (8).

4. The music theory of elementary presentation board of claim 1, wherein the other end of the telescopic rod (9) is fixedly connected to the U-shaped frame (2), the lifting spring (10) is sleeved on the telescopic rod (9), and the other end of the lifting spring (10) is fixedly connected to one end side wall of the U-shaped frame (2).

5. The music theory of elementary presentation board according to claim 1, wherein one end of the lifting cord (11) is fixedly connected to the U-shaped frame (2), the other end of the lifting cord (11) is fixedly connected to the outer wall of the reel (20), and the lifting cord (11) is wound around the reel (20).

6. The music theory of elementary presentation board of claim 1, wherein the U-shaped frame (2) and the rocker (15) are both provided with second limiting holes (19), the plurality of second limiting holes (19) are circumferentially and uniformly distributed on the U-shaped frame (2), and the second limiting holes (19) are connected with second limiting bolts (18) through threads.