CN115273604A - Display device is used in vocal music teaching - Google Patents
Display device is used in vocal music teaching Download PDFInfo
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- CN115273604A CN115273604A CN202210969531.6A CN202210969531A CN115273604A CN 115273604 A CN115273604 A CN 115273604A CN 202210969531 A CN202210969531 A CN 202210969531A CN 115273604 A CN115273604 A CN 115273604A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B15/00—Teaching music
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Abstract
The invention discloses a display device for vocal music teaching, which relates to the technical field of vocal music teaching, and is characterized in that through a protective shell, when a display board is required to be used, a hydraulic press is started, a round rod is pushed by the round rod to gradually move upwards from the inner surface of a bearing, a hydraulic rod is started after the round rod is lifted to a limit position, an arc-shaped plate drives a T-shaped sliding block to move upwards together under the influence of the hydraulic rod, the display board can continuously rise through the influence of a fixed block until the display board moves to a proper position, the heights of teachers are different, so that the heights of the display boards for placing music scores are different, the display board can move to the height suitable for the teachers to use by virtue of the hydraulic press and the hydraulic rod for driving, the practicability is increased to a certain extent, the stability of the whole device is greatly increased by virtue of a triangular positioning rod and the triangular arrangement with the highest stability, and the protective shell is used for containing the display board when the display board is not used.
Description
Technical Field
The invention relates to the field of vocal music teaching, in particular to a display device for vocal music teaching.
Background
At present, the display device used for vocal music teaching only has a single-face display board for bearing and displaying music scores or books, the display board cannot be adjusted in angle according to personal watching habits, the practical degree is low, the display device can only be placed at corners as a placed object when not in use, and the display device for vocal music teaching is provided for increasing the practicability of the display device.
Disclosure of Invention
In order to solve the above technical problem, the present invention provides a display device for vocal music teaching, comprising:
the protective shell is cylindrical, a display board is arranged right above the protective shell, a cover plate is arranged at the top of the display board, and a light bar is fixedly connected to the bottom of the cover plate;
the protective housing includes hydraulic press, bearing, round bar and ejector pin, the hydraulic press sets up at the protective housing inboardly, the round bar passes through the bearing and is connected with the rotation of hydraulic press top, the ejector pin sets up at the round bar top, the opening has been seted up at the ejector pin top, and opening internal surface and round bar outer fixed surface are connected, hydraulic press surface lower extreme fixedly connected with triangle locating lever, and the one end that the hydraulic press was kept away from to the triangle locating lever and protective housing inner wall fixed connection
Further, the round bar comprises a T-shaped sliding block, an inserting bar, an arc bar, a fixed block, an arc plate and a hydraulic rod, a cylindrical groove is formed in the round bar, a T-shaped sliding groove is formed in the outer surface of the round bar, the T-shaped sliding groove is connected with the cylindrical groove, the T-shaped sliding block is connected to the inside of the T-shaped sliding groove in a sliding mode, the top of the T-shaped sliding block is in contact with the bottom of the ejector rod, a socket is formed in the front face of the T-shaped sliding block, the inserting bar is transversely inserted into the socket, the arc bar is fixedly connected to the outer surface of the T-shaped sliding block, one end, far away from the inserting bar, of the arc bar is fixedly connected with the fixed block, the fixed block is fixedly connected to one end, far away from the round bar, of the T-shaped sliding block, the arc plate is arranged inside the cylindrical groove, the outer surface of the arc plate is fixedly connected with the T-shaped sliding block, and the hydraulic rod is fixedly connected to the inner surface of the arc plate.
Further, the fixed block is including rotating disk, well axle piece, elastic rod, fixture block and connecting plate, the round mouth has openly been seted up to the fixed block, it connects inside the round mouth to rotate the disk, semi-circular bayonet socket has been seted up to the round mouth inner wall, rotate the inside square groove of having seted up of disk, well axle piece fixed connection is inside square groove, elastic rod fixed connection is both sides about well axle piece, fixture block sliding connection is inside square groove, the fixture block top runs through square groove and extends to inside the semi-circular bayonet socket, connecting plate fixed connection is in both sides around rotating the disk, two one side that the connecting plate is close to each other and both sides contaction around the fixed block.
Furthermore, the display board comprises a square strip, a connecting strip, a long fixing board, a long sliding rod, a supporting board, a sliding board and a connecting fixing board, wherein a notch is formed in the top of the front side of the display board, the display board is arranged at an inclination angle with the height from left to right, a long square groove is formed in the bottom of the front side of the display board, the square strip is arranged in the long square groove, the connecting strip is fixedly connected to the upper side and the lower side of the left end and the right end of the square strip, the long fixing board is arranged on the back side of the display board, the left side and the right side of the long fixing board are fixedly connected with the side of the connecting strip, the long sliding rod is transversely and slidably connected into the long fixing board, the supporting board is fixedly connected to one end, away from the long fixing board, of the long sliding rod, the front side of the supporting board is in contact with the back side of the display board, an opening is formed in the sliding connection with the left side and the right side of the inner wall of the opening, the connecting board is fixedly connected to one end, away from the supporting board, the front side of the connecting fixing board is fixedly connected with the back side of the long fixing board.
The invention has the beneficial effects.
According to the invention, through the protective shell, when the display board is required to be used, after the hydraulic press is started, the round rod can gradually move upwards from the inner surface of the bearing under the pushing action of the round rod, the hydraulic press is started after the round rod is lifted to the limit position, the arc-shaped plate drives the T-shaped sliding block to move upwards together under the influence of the hydraulic press, at the moment, the display board can continuously lift up under the influence of the fixed block until the display board moves to a proper position, because the heights of teachers are different, the heights of the display board for placing music scores are different, the display board can move to the height suitable for the teachers to use by means of the hydraulic press and the driving of the hydraulic press, the practicability is increased to a certain extent, through the triangular positioning rod, the triangular setting with the highest stability is adopted, the stability of the whole device is greatly increased, through the protective shell, when the display board is not used, the display board is contained in the protective effect, the protective effect is achieved, the whole device can serve as a seat by means of the cover plate arranged at the top of the ejector rod, the practical effect of the device is further improved, and the light bar can be used in darkness.
According to the invention, through the fixing block, a teacher can stir the display board upwards or downwards to achieve the effect of adjusting the inclination angle of the display board, when the display board needs to be adjusted upwards, the teacher supports the bottom of the display board by hands and then pushes the display board upwards, at the moment, the display board can transmit the received force to the rotating round block through the connecting plate, the position of the clamping block is not contacted with the semicircular bayonet, the top of the clamping block is contacted with the inner wall of the round opening and can move a certain distance towards the inside of the square groove under the influence of a reaction force when the rotating round block rotates to the position of the semicircular bayonet at the next position, the top of the clamping block is quickly pushed into the semicircular bayonet under the elastic support of the elastic rod, through the elastic rod, the position of the clamping block can be maintained by virtue of the elastic force of the clamping block, and the clamping block has a certain pressure on the outer side, the stability of the display board is further improved, the situation that the original inclination angle of the display board cannot be maintained due to external shaking and collision is greatly reduced, and the clamping block can rotate in the semicircular bayonet by virtue of the special shape arrangement of the semicircular top of the clamping block.
According to the invention, through the display board, when the music score or the book page is prevented from being automatically closed, the music score or the book page is required to be positioned, the square strip is pulled outwards after the connecting strip is hooked by hands and lifted for a certain distance, the fixed long board moves towards one side close to the support plate along the sliding long rod under the influence of the pulling force of the fixed long board, the music score or the book is placed on the display board, the book spine of the book is required to be placed at the notch when the book is placed, then the square strip is moved to a place out of the way and loosened, the fixed long board is pulled back to the original position by the self elasticity of the spring after the spring loses the influence of the pulling force of the square strip, the effect of positioning the music score or the book page is achieved by the influence of the elasticity of the spring, the teacher cannot be influenced to watch and display when the music score or the book page is positioned due to the fact that the square strip is slender, and the sliding plate is limited in the opening, the effect of increasing the stability of the square strip is achieved, and the left and right situation cannot occur.
Drawings
FIG. 1 is a schematic view of the overall expanded structure of the present invention;
FIG. 2 is a schematic view of the overall constriction of the present invention;
FIG. 3 is a schematic view of the internal structure of the protective case of the present invention;
FIG. 4 is a schematic view of the overall structure of the round bar of the present invention;
FIG. 5 is a schematic view of the internal structure of the round bar of the present invention;
FIG. 6 is a schematic view of the internal structure of the fixing block according to the present invention;
FIG. 7 is a schematic front view of a display board according to the present invention;
fig. 8 is a rear view of the display board of the present invention.
1. A protective shell; 11. a hydraulic press; 12. a bearing; 13. a round bar; 131. a T-shaped slider; 132. inserting a rod; 133. an arcuate bar; 134. a fixed block; 41. rotating the round block; 42. a middle shaft block; 43. an elastic rod; 44. a clamping block; 45. a connecting plate; 135. an arc-shaped plate; 136. a hydraulic lever; 14. a top rod; 2. a display board; 21. square strips; 22. a connecting strip; 23. fixing the long plate; 24. a sliding long rod; 25. a support plate; 26. a sliding plate; 27. fixing the connecting plate; 3. a cover plate; 4. a light bar.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Example 1
Referring to fig. 1-6, the present invention is a demonstration device for vocal music teaching, comprising:
the protective shell 1 is cylindrical, the display board 2 is arranged right above the protective shell 1, the cover plate 3 is arranged at the top of the display board 2, the bottom of the cover plate 3 is fixedly connected with the light bar 4, the effect of illuminating the display board 2 can be achieved when light is dark through the light bar 4, and the practical effect is improved again;
the protective shell 1 comprises a hydraulic press 11, a bearing 12, a round rod 13 and an ejector rod 14, the hydraulic press 11 is arranged on the inner side of the protective shell 1, the round rod 13 is rotatably connected with the top of the hydraulic press 11 through the bearing 12, the ejector rod 14 is arranged on the top of the round rod 13, and the protective shell 1 is used for containing the display board 2 when the display board is not used, so that the display board can be protected, the whole device can be used as a seat by means of a cover plate 3 arranged on the top of the ejector rod 14, and the practical effect of the device is further improved;
the outer surface lower extreme fixedly connected with triangle locating lever of hydraulic press 11, and the one end and the 1 inner wall fixed connection of protective housing of hydraulic press 11 are kept away from to the triangle locating lever, and protective housing 1 and triangle locating lever bottom are in same height.
The round rod 13 comprises a T-shaped sliding block 131, an inserting rod 132, an arc-shaped rod 133, a fixed block 134, an arc-shaped plate 135 and a hydraulic rod 136, a cylindrical groove is formed in the round rod 13, a T-shaped sliding groove is formed in the outer surface of the round rod 13 and connected with the cylindrical groove, the T-shaped sliding block 131 is connected in the T-shaped sliding groove in a sliding mode, a socket is formed in the front face of the T-shaped sliding block 131, the inserting rod 132 is transversely inserted into the socket, the arc-shaped rod 133 is fixedly connected to the outer surface of the T-shaped sliding block 131, the fixed block 134 is fixedly connected to one end, far away from the round rod 13, of the T-shaped sliding block 131, the arc-shaped plate 135 is arranged in the cylindrical groove, and the hydraulic rod 136 is fixedly connected to the inner surface of the arc-shaped plate 135;
the end of the arc rod 133 away from the insertion rod 132 is fixedly connected with the fixing block 134.
The outer surface of the arc-shaped plate 135 is fixedly connected with a T-shaped sliding block 131, the top of the ejector rod 14 is provided with a through hole, the inner surface of the through hole is fixedly connected with the outer surface of the round rod 13, and the top of the T-shaped sliding block 131 is in contact with the bottom of the ejector rod 14.
Fixed block 134 is including rotating circle 41, well axle block 42, elastic rod 43, fixture block 44 and connecting plate 45, the round mouth has openly been seted up to fixed block 134, it connects inside the round mouth to rotate circle 41, the square groove has been seted up to rotate the inside of circle 41, well axle block 42 fixed connection is inside the square groove, elastic rod 43 fixed connection is in well axle block 42 upper and lower both sides, fixture block 44 sliding connection is inside the square groove, connecting plate 45 fixed connection is in rotating both sides around circle 41, through fixed block 134, the teacher can be with show board 2 upwards or stir down to reach the effect of adjusting show board 2 inclination, when show board 2 needs the upwards adjustment, the teacher holds in the palm show board 2 bottom with the hand and then upwards promotes, show board 2 can transmit the power that receives for rotating circle 41 through connecting plate 45 this moment, fixture block 44 changes because of the position of rotating circle 41, so its top does not contact with semi-circular bayonet socket, fixture block 44 top and round mouth inner wall contact receive the reaction force influence and can move some distances to the inside square groove, when rotating circle 41 rotates to the semicircular bayonet socket position of next place, fixture block 44 rotates behind the semicircular bayonet socket position, elastic rod 43, the quick top bayonet socket of its top of elastic rod support fixture block 44 under its top.
Semicircular bayonets are formed in the inner wall of the round opening, the top ends of the clamping blocks 44 penetrate through the square grooves and extend into the semicircular bayonets, and one side, close to each other, of the two connecting plates 45 is in contact with the front side and the rear side of the fixing block 134.
Referring to fig. 1-6, the present invention is a demonstration device for vocal music teaching, comprising:
the protective shell 1 is cylindrical, a display plate 2 is arranged right above the protective shell 1, a cover plate 3 is arranged at the top of the display plate 2, and a light bar 4 is fixedly connected to the bottom of the cover plate 3;
the protective shell 1 comprises a hydraulic press 11, a bearing 12, a round rod 13 and an ejector rod 14, the hydraulic press 11 is arranged on the inner side of the protective shell 1, the round rod 13 is rotatably connected with the top of the hydraulic press 11 through the bearing 12, the ejector rod 14 is arranged on the top of the round rod 13, through the protective shell 1, when the display board 2 needs to be used, after the hydraulic press 11 is started, the round rod 13 can gradually move upwards from the inner surface of the bearing 12 under the pushing of the round rod 13, when the display board 2 rises to a limit position, the hydraulic rod 136 is started, the arc-shaped plate 135 drives the T-shaped sliding block 131 to move upwards together under the influence of the hydraulic rod 136, and at the moment, the display board 2 can continuously rise through the influence of the fixing block 134 until the display board moves to a proper position;
the hydraulic press 11 surface lower extreme fixedly connected with triangle locating lever, and the triangle locating lever keeps away from the one end and protective housing 1 inner wall fixed connection of hydraulic press 11, and protective housing 1 and triangle locating lever bottom are in same height, through the triangle locating lever, rely on the triangle-shaped setting that self has stability most, greatly increased the holistic stability of device.
The round rod 13 comprises a T-shaped sliding block 131, an inserting rod 132, an arc-shaped rod 133, a fixed block 134, an arc-shaped plate 135 and a hydraulic rod 136, a cylindrical groove is formed in the round rod 13, a T-shaped sliding groove is formed in the outer surface of the round rod 13 and is connected with the cylindrical groove, the T-shaped sliding block 131 is connected in the T-shaped sliding groove in a sliding mode, a socket is formed in the front of the T-shaped sliding block 131, the inserting rod 132 is transversely inserted into the socket, the arc-shaped rod 133 is fixedly connected to the outer surface of the T-shaped sliding block 131, the fixed block 134 is fixedly connected to one end, far away from the round rod 13, of the T-shaped sliding block 131, the arc-shaped plate 135 is arranged in the cylindrical groove, the hydraulic rod 136 is fixedly connected to the inner surface of the arc-shaped plate 135, and due to different heights of teachers, the heights of the teachers are different, so that the heights of the display plates 2 for placing music scores are different, the displays are driven by means of a hydraulic device 11 and the hydraulic rod 136, so that the display plates 2 can move to the heights suitable for the teachers to use, and the practicability is increased to a certain extent;
one end of the arc rod 133 far away from the insertion rod 132 is fixedly connected with the fixed block 134, and the fixed block 134 can be better connected with the T-shaped sliding block 131 through the insertion rod 132.
The outer surface of the arc-shaped plate 135 is fixedly connected with the T-shaped sliding block 131, the top of the ejector rod 14 is provided with a through hole, the inner surface of the through hole is fixedly connected with the outer surface of the round rod 13, and the top of the T-shaped sliding block 131 is in contact with the bottom of the ejector rod 14.
Semicircular bayonets have been seted up to the round mouth inner wall, and inside the fixture block 44 top ran through square groove and extended to semicircular bayonet, both sides contacted each other around one side that two connecting plates 45 are close to each other and fixed block 134, relied on the semicircular special shape setting in its top through fixture block 44 for fixture block 44 can rotate in semicircular bayonet.
The display board 2 comprises a square strip 21, a connecting strip 22, a fixed long board 23, a sliding long rod 24, a support board 25, a sliding plate 26 and a fixed connecting board 27, wherein a square long groove is formed in the bottom of the front of the display board 2, the square strip 21 is arranged in the square long groove, the square strip 21 passes through the square strip 21, the square strip 21 is slender, so that the watching and displaying of teachers cannot be influenced when music scores or book pages are positioned, the connecting strip 22 is fixedly connected to the upper side and the lower side of the left end and the right end of the square strip 21, the fixed long board 23 is arranged on the back of the display board 2, the sliding long rod 24 is transversely and slidably connected into the fixed long board 23, the support board 25 is fixedly connected to one end, away from the fixed long board 23, of the sliding long rod 24 is provided with an opening, the sliding plate 26 is slidably connected into the opening, the fixed connecting board 27 is fixedly connected to one end, away from the support board 25, the display board 2 passes through the display board 2, when the music scores or the book pages are automatically closed, the music scores or the book pages need to be positioned, the music scores or the book pages are lifted up for a certain distance after the connecting strip 22 is hooked, the square strip 21 is pulled outwards, the support board 23 is pulled by the tension, the support board is moved to one side of the book pages, and the book 24, and the book is moved to one side of the book on the book 2;
the display board 2 is provided with a notch at the top of the front surface, and the display board 2 is arranged at an inclination angle with a high left side and a low right side.
The front surface of the supporting plate 25 is contacted with the back surface of the display plate 2, the left side and the right side of the sliding plate 26 are contacted with the left side and the right side of the inner wall of the opening, the left side and the right side of the fixed long plate 23 are fixedly connected with the side surfaces of the connecting strips 22, and the sliding plate 26 is limited in the opening through the sliding plate 26, so that the effect of increasing the stability of the square strips 21 is achieved, and the left side and the right side of the square strips cannot occur;
fixed even board 27 front fixedly connected with spring, and spring front end and fixed long board 23 back fixed connection, need aim at the spine department of books when placing books and put into notch department, then remove square strip 21 to the place that does not obstruct loosen can, can rely on its self elasticity to pull back fixed long board 23 in the original position after the spring loses the pulling force influence of square strip 21, and then the elasticity influence of relying on the spring reaches the effect of fixing a position music book or books page or leaf.
One specific application of this embodiment is: when the display board 2 needs to be used, after the hydraulic press 11 is started, the round rod 13 gradually moves upwards from the inner surface of the bearing 12 under the pushing action of the round rod 13, after the round rod rises to the limit position, the hydraulic press 136 is started, the arc-shaped plate 135 drives the T-shaped sliding block 131 to move upwards together under the influence of the hydraulic press 136, at this time, the display board 2 continues to rise under the influence of the fixing block 134 until the display board moves to a proper position, a teacher can stir the display board 2 upwards or downwards to achieve the effect of adjusting the inclination angle of the display board 2, when the display board 2 needs to be adjusted upwards, the teacher supports the bottom of the display board 2 by hands and then pushes upwards, at this time, the received force is transmitted to the rotating round block 41 through the connecting plate 45 by the display board 2, the top of the clamping block 44 does not contact with the semicircular bayonet, the contact between the top of the clamping block 44 and the inner wall of the round opening is influenced by the reactive force to move a certain distance towards the inside of the square groove, when the rotating round block 41 is rotated to the position of the semicircular bayonet at the next position, the top of the clamping block 44 is quickly pushed into the semicircular bayonet under the support of the elastic force of the elastic rod 43, when the music book or the book page is required to be positioned in order to prevent the music book or the book page from being automatically closed, the connecting strip 22 is hooked by a hand and then lifted upwards for a certain distance, the square strip 21 is pulled outwards, the long fixing plate 23 is influenced by the pulling force to move towards one side close to the support plate 25 along the long sliding rod 24, at the moment, the music book or the book is placed on the display plate 2, when the book is placed, the book spine needs to be aligned with the notch to be placed, then the square strip 21 is moved to a place out of the way to be released, after the spring loses the influence of the pulling force of the square strip 21, the long fixing plate 23 is pulled back to the original position by the self elastic force, the effect of positioning the music score or the book page is achieved.
It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art and related arts based on the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are not specifically illustrated or described, but are instead contemplated to be practiced in the art by those skilled in the art.
Claims (7)
1. The utility model provides a display device is used in vocal music teaching which characterized in that includes:
the lamp strip protecting device comprises a protecting shell (1), wherein the protecting shell (1) is cylindrical, a display board (2) is arranged right above the protecting shell (1), a cover plate (3) is arranged at the top of the display board (2), and a lamp strip (4) is fixedly connected to the bottom of the cover plate (3);
the protective shell (1) comprises a hydraulic press (11), a bearing (12), a round rod (13) and an ejector rod (14), the hydraulic press (11) is arranged on the inner side of the protective shell (1), the round rod (13) is rotatably connected with the top of the hydraulic press (11) through the bearing (12), and the ejector rod (14) is arranged on the top of the round rod (13);
the lower end of the outer surface of the hydraulic press (11) is fixedly connected with a triangular positioning rod, one end, away from the hydraulic press (11), of the triangular positioning rod is fixedly connected with the inner wall of the protective shell (1), and the bottoms of the protective shell (1) and the triangular positioning rod are located at the same height.
2. The demonstration device for vocal music teaching according to claim 1, wherein: the round rod (13) comprises a T-shaped sliding block (131), an inserting rod (132), an arc-shaped rod (133), a fixed block (134), an arc-shaped plate (135) and a hydraulic rod (136), a cylindrical groove is formed in the round rod (13), a T-shaped sliding groove is formed in the outer surface of the round rod (13), the T-shaped sliding groove is connected with the cylindrical groove, the T-shaped sliding block (131) is connected in the T-shaped sliding groove in a sliding mode, a socket is formed in the front face of the T-shaped sliding block (131), the inserting rod (132) is transversely inserted in the socket, the arc-shaped rod (133) is fixedly connected to the outer surface of the T-shaped sliding block (131), the fixed block (134) is fixedly connected to one end, far away from the round rod (13), of the arc-shaped plate (135) is arranged in the cylindrical groove, and the hydraulic rod (136) is fixedly connected to the inner surface of the arc-shaped plate (135);
one end of the arc-shaped rod (133) far away from the inserting rod (132) is fixedly connected with the fixed block (134).
3. The display device for vocal music teaching according to claim 2, wherein: the outer surface of the arc-shaped plate (135) is fixedly connected with the T-shaped sliding block (131), the top of the ejector rod (14) is provided with a through opening, the inner surface of the through opening is fixedly connected with the outer surface of the round rod (13), and the top of the T-shaped sliding block (131) is in contact with the bottom of the ejector rod (14).
4. The display device for vocal music teaching according to claim 3, wherein: fixed block (134) are including rotating disk (41), axis piece (42), elastic rod (43), fixture block (44) and connecting plate (45), the round mouth has openly been seted up to fixed block (134), it connects inside the round mouth to rotate disk (41), rotate disk (41) inside and seted up square groove, axis piece (42) fixed connection is inside square groove, elastic rod (43) fixed connection is both sides about axis piece (42), fixture block (44) sliding connection is inside square groove, both sides around connecting plate (45) fixed connection rotates disk (41).
5. The display device for vocal music teaching according to claim 4, wherein: semicircular bayonets are formed in the inner wall of the round opening, the top ends of the clamping blocks (44) penetrate through the square grooves and extend to the insides of the semicircular bayonets, and two sides, close to each other, of the connecting plates (45) are in contact with the front side and the rear side of the fixing block (134).
6. The demonstration device for vocal music teaching according to claim 1, wherein: the display board (2) comprises a square strip (21), a connecting strip (22), a fixed long plate (23), a sliding long rod (24), a support plate (25), a sliding plate (26) and a fixed connecting plate (27), wherein the bottom of the front surface of the display board (2) is provided with a square long groove, the square strip (21) is arranged in the square long groove, the connecting strip (22) is fixedly connected to the upper side and the lower side of the left end and the right end of the square strip (21), the fixed long plate (23) is arranged on the back surface of the display board (2), the sliding long rod (24) is transversely and slidably connected in the fixed long plate (23), the support plate (25) is fixedly connected to one end, far away from the fixed long plate (23), of the sliding long rod (24), the back surface of the display board (2) is provided with an opening, the sliding plate (26) is slidably connected in the opening, and the fixed connecting plate (27) is fixedly connected to one end, far away from the support plate (25), of the sliding long rod (24);
the display board (2) is characterized in that a notch is formed in the top of the front face of the display board (2), and the display board (2) is arranged at an inclination angle with a high left side and a low right side.
7. The display device for vocal music teaching according to claim 6, wherein: the front surface of the supporting plate (25) is contacted with the back surface of the display plate (2), the left side and the right side of the sliding plate (26) are contacted with the left side and the right side of the inner wall of the opening, and the left side and the right side of the fixed long plate (23) are fixedly connected with the side surfaces of the connecting strips (22);
the front of the fixed connecting plate (27) is fixedly connected with a spring, and the front end of the spring is fixedly connected with the back of the fixed long plate (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210969531.6A CN115273604A (en) | 2022-08-12 | 2022-08-12 | Display device is used in vocal music teaching |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210969531.6A CN115273604A (en) | 2022-08-12 | 2022-08-12 | Display device is used in vocal music teaching |
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| CN115273604A true CN115273604A (en) | 2022-11-01 |
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| CN202210969531.6A Pending CN115273604A (en) | 2022-08-12 | 2022-08-12 | Display device is used in vocal music teaching |
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| CN212324184U (en) * | 2020-08-05 | 2021-01-08 | 郑州职业技术学院 | Prompter device for news dissemination |
| CN213664634U (en) * | 2020-11-03 | 2021-07-13 | 王倩倩 | Work of fine arts show shelf |
| CN215815025U (en) * | 2021-09-17 | 2022-02-11 | 陈少芬 | Advertising lamp box with combined light guide plate structure |
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