Projection auxiliary exercise type electric piano

Abstract

The utility model relates to a projection auxiliary practice type electric piano which comprises an electric piano body, a protection mechanism is arranged in the middle of the back face of the electric piano body, a key groove is formed in one side of the upper surface of the electric piano body, and a containing groove is formed in one side of the inner surface of the key groove. Through the arrangement of a protection mechanism and a receiving mechanism, a rotary knob is twisted to drive a lead screw to rotate, under the guidance of a guide block, the lead screw rotates to drive a mobile phone to move horizontally, then a mounting frame drives a display light emitter to be stored in a storage groove, and then the display light emitter is shrunk, so that the display light emitter is prevented from being exposed for a long time to be damaged, and the safety is improved; and meanwhile, the protective shell on one side and the toothed plates are pushed to move, the gear moves to drive the gear to rotate, the gear rotates to drive the other toothed plate to horizontally move, the protective shell on the other side is driven to move when the other toothed plate horizontally moves, then the two protective shells are combined to cover the electric piano body, and therefore protection is achieved when the electric piano body is placed.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic musical instruments, in particular to a projection-assisted practice-type electric piano. Background Art

[0002] Pianos are expensive and difficult to maintain, making them unaffordable for ordinary families. For this reason, electric pianos became popular in the 1960s and 1970s. The sound-producing principle of electric pianos is to use the keyboard as an on-off switch to form electrophoresis. Once a key is pressed, the internal crystal oscillator starts working, forming a pulse to produce a waveform of a certain frequency, which is then amplified by a crossover and sent to the speaker to produce sound.

[0003] For example, Chinese patent: Publication No. CN216849297U is a display light projection practice electric piano. Aiming at the problem that the existing electric pianos on the market do not use tools to assist beginners, it is difficult for beginners to remember the keys when practicing, which affects the learning efficiency. The following solution is proposed, which includes an electric piano body and a display light emitter. Vertical grooves are opened on both sides of the bottom of the electric piano body. Vertical plates are slidably installed in the vertical grooves. A clamping rod is fixedly installed on the top of one side of the two vertical plates close to each other. Clamping slots are opened on both sides of the display light emitter, and two clamping rods are movably clamped in the corresponding clamping slots.

[0004] Although the display light emitter provided on the electric piano emits light and shadow signals at the corresponding case positions to help beginners remember the keys and improve learning efficiency, and the display light emitter is easy to install and disassemble, which is convenient for use, the display light emitter is always exposed to the outside, which is not convenient for storage and protection, and there is a possibility of accidental damage. At the same time, the electric piano lacks a protective device, and the protection performance of the electric piano is poor when it is placed. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In order to solve the above-mentioned problems in the prior art, the utility model provides a projection-assisted practice electric piano, which solves the problem that the display light emitter is always exposed to the outside, which is inconvenient to store and protect, and has the possibility of accidental damage. At the same time, the electric piano lacks a protective device, and the protection performance of the electric piano is poor when placed.

[0007] (II) Technical solution

[0008] In order to achieve the above purpose, the main technical solutions adopted by the utility model are:

[0009] A projection-assisted practice electric piano comprises an electric piano body, a protective mechanism is arranged in the middle of the back of the electric piano body, a key groove is arranged on one side of the upper surface of the electric piano body, a storage groove is arranged on one side of the inner surface of the key groove, a receiving mechanism is arranged inside the storage groove, a groove is arranged on one side of the inner wall of the key groove, and a guide groove is arranged on the other side of the inner wall of the key groove.

[0010] The receiving mechanism includes a display light emitter and a mounting frame, both sides of the display light emitter are fixedly connected to limit blocks, both sides of the inner wall of the mounting frame are provided with limit grooves adapted to the limit blocks, one side of the mounting frame is fixedly connected to a movable plate, and the other side of the mounting frame is fixedly connected to a guide block adapted to the guide groove, a screw rod is threadedly connected to the surface of the movable plate, and one end of the screw rod is rotatably connected to one side of the inner wall of the groove by installing an A bearing.

[0011] The protective mechanism includes a gear, one side of which is fixedly connected to a connecting rod, the other end of which is rotatably connected to the middle of the back side of the electric piano body by installing a B bearing, the top and bottom of the gear tooth surface are respectively meshed with tooth plates, and one side of the two tooth plates is respectively fixedly connected to a protective shell.

[0012] T-shaped sliding grooves are provided on both sides of the inner bottom walls of the two protective shells, and supporting legs are fixedly connected on both sides of the bottoms of the two protective shells.

[0013] The inner bottom wall of the key slot is provided with a keyboard, and both sides of the bottom of the electric piano body are fixedly connected with T-shaped slide bars matched with the T-shaped slide slot.

[0014] The bottom of the support leg is fixedly connected with a walking wheel, and a brake pad is arranged inside the walking wheel.

[0015] One side of the surface of the screw rod is rotatably connected to the inside of the other side of the inner wall of the groove by installing a C bearing and is penetrated through one side of the back side of the electric piano body, and the other end of the screw rod is fixedly connected with a toggle.

[0016] (III) Beneficial effects

[0017] The beneficial effects of the utility model are as follows: through the setting of the protection mechanism and the receiving mechanism, the twisting movement drives the screw rod to rotate, and under the guidance of the guide block, the screw rod rotation drives the movement horizontally, and then the mounting frame drives the display light emitter to be stored in the storage groove, and then the display light emitter is retracted, thereby avoiding long-term exposure to the outside and being damaged, thereby improving safety, and at the same time pushing the protection shell and the tooth plate on one side to move, the movement of the gear drives the gear to rotate, the rotation of the gear drives the other tooth plate to move horizontally, and the horizontal movement of the other tooth plate drives the protection shell on the other side to move, and then the two protection shells are combined to cover the electric piano body, thereby providing protection when the electric piano body is placed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the protection mechanism of the utility model;

[0021] Figure 4 It is a schematic diagram of the receiving mechanism structure of the utility model.

[0022] [Description of Reference Numerals]

[0023] 1. Electric piano body; 2. Protective mechanism; 21. Gear; 22. Tooth plate; 23. Protective shell; 3. Receiving mechanism; 31. Display light emitter; 32. Mounting frame; 33. Limit block; 34. Moving plate; 35. Guide block; 36. Screw rod; 4. Support leg; 5. Keyboard; 6. T-shaped slide bar; 7. Travel wheel; 8. Twist. DETAILED DESCRIPTION

[0024] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0025] Please refer to Figures 1 to 4 As shown, a projection-assisted practice electric piano of the utility model comprises an electric piano body 1, a protective mechanism 2 is arranged in the middle of the back side of the electric piano body 1, a key groove is arranged on one side of the upper surface of the electric piano body 1, a storage groove is arranged on one side of the inner surface of the key groove, a receiving mechanism 3 is arranged inside the storage groove, a groove is arranged on one side of the inner wall of the key groove, and a guide groove is arranged on the other side of the inner wall of the key groove. During the actual implementation process, twisting the twist 8 drives the screw rod 36 to rotate. Under the guidance of the guide block 35, the screw rod 36 rotates to drive the movable plate 34 to move horizontally. Then the mounting frame 32 drives the display light emitter 31 to be stored in the storage slot to protect the display light emitter 31. At the same time, when the electric piano body 1 is stored, it pushes the protective shell 23 and the tooth plate 22 on one side to move. The movement of the tooth plate 22 drives the gear 21 to rotate. The rotation of the gear 21 drives the other tooth plate 22 to move horizontally. When the other tooth plate 22 moves horizontally, it drives the protective shell 23 on the other side to move, so that the two protective shells 23 are combined to cover the electric piano body 1, thereby protecting the electric piano body 1 when it is placed.

[0026] Optionally, the receiving mechanism 3 includes a display light emitter 31 and a mounting frame 32, both sides of the display light emitter 31 are fixedly connected to the limit blocks 33, both sides of the inner wall of the mounting frame 32 are provided with limit grooves adapted to the limit blocks 33, one side of the mounting frame 32 is fixedly connected to a moving plate 34, the other side of the mounting frame 32 is fixedly connected to a guide block 35 adapted to the guide groove, the surface of the moving plate 34 is threadedly connected to a screw rod 36, one end of the screw rod 36 is rotatably connected to one side of the inner wall of the groove by installing an A bearing. In the actual implementation process, the screw rod 36 is rotated by twisting the twist 8, and under the guidance of the guide block 35, the screw rod 36 rotates to drive the moving plate 34 to move horizontally, and then the mounting frame 32 drives the display light emitter 31 to be stored in the receiving groove.

[0027] Optionally, the protection mechanism 2 includes a gear 21, one side of which is fixedly connected to a connecting rod, the other end of which is rotatably connected to the middle of the back of the electric piano body 1 by installing a B bearing, the top and bottom of the tooth surface of the gear 21 are respectively meshed with tooth plates 22, and one side of the two tooth plates 22 is respectively fixedly connected to a protection shell 23. In the actual implementation process, the protection shell 23 on one side is pushed to move and the tooth plate 22 is moved, the movement of the tooth plate 22 drives the gear 21 to rotate, the rotation of the gear 21 drives the other tooth plate 22 to move horizontally, and the horizontal movement of the other tooth plate 22 drives the protection shell 23 on the other side to move, so that the two protection shells 23 are combined to cover the electric piano body 1, so as to provide protection when the electric piano body 1 is placed.

[0028] Optionally, T-shaped grooves are provided on both sides of the inner bottom wall of the two protective shells 23, and support legs 4 are fixedly connected to both sides of the bottom of the two protective shells 23. In the actual implementation process, the electronic piano body 1 is lifted up by the setting of the support legs 4 to protect the bottom of the electronic piano body 1.

[0029] Optionally, a keyboard 5 is provided on the inner bottom wall of the key slot, and T-shaped slide bars 6 adapted to the T-shaped slide groove are fixedly connected to both sides of the bottom of the electronic piano body 1. In the actual implementation process, the T-shaped slide bar 6 is arranged in cooperation with the T-shaped slide groove, so that the protective shell 23 can move horizontally when moving.

[0030] Optionally, the bottom of the support leg 4 is fixedly connected with a running wheel 7, and a brake pad is arranged inside the running wheel 7. In the actual implementation process, the setting of the running wheel 7 facilitates the horizontal movement of the protective shell 23.

[0031] Optionally, one side of the surface of the screw rod 36 is rotatably connected to the inside of the other side of the inner wall of the groove by installing a C bearing and is penetrated through one side of the back of the electronic piano body 1, and the other end of the screw rod 36 is fixedly connected to a twist knob 8. In the actual implementation process, the screw rod 36 is conveniently rotated by the twist knob 8, and the rotation of the screw rod 36 drives the display light emitter 31 to move horizontally.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model, and the standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description and the drawings, and the specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0033] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A projection-assisted practice-type electronic piano, comprising an electronic piano body (1), characterized in that: A protective mechanism (2) is provided in the middle of the back side of the electronic piano body (1); a key groove is provided on one side of the upper surface of the electronic piano body (1); a storage groove is provided on one side of the inner surface of the key groove; a receiving mechanism (3) is provided inside the storage groove; a groove is provided on one side of the inner wall of the key groove; and a guide groove is provided on the other side of the inner wall of the key groove.

2. The projection-assisted practice electronic piano according to claim 1, characterized in that: The receiving mechanism (3) comprises a display light emitter (31) and a mounting frame (32), both sides of the display light emitter (31) are fixedly connected to limit blocks (33), both sides of the inner wall of the mounting frame (32) are provided with limit grooves matched with the limit blocks (33), one side of the mounting frame (32) is fixedly connected to a moving plate (34), the other side of the mounting frame (32) is fixedly connected to a guide block (35) matched with the guide groove, the surface of the moving plate (34) is threadedly connected to a lead screw (36), one end of the lead screw (36) is rotatably connected to one side of the inner wall of the groove by installing an A bearing.

3. The projection-assisted practice electronic piano according to claim 1, characterized in that: The protective mechanism (2) comprises a gear (21), one side of the gear (21) is fixedly connected to a connecting rod, the other end of the connecting rod is rotatably connected to the middle part of the back side of the electric piano body (1) by installing a B bearing, the top and bottom of the tooth surface of the gear (21) are respectively meshed with tooth plates (22), and one side of the two tooth plates (22) is respectively fixedly connected to a protective shell (23).

4. The projection-assisted practice electronic piano according to claim 3, characterized in that: T-shaped sliding grooves are provided on both sides of the inner bottom walls of the two protective shells (23), and support legs (4) are fixedly connected to both sides of the bottoms of the two protective shells (23).

5. The projection-assisted practice electronic piano according to claim 1, characterized in that: The inner bottom wall of the key slot is provided with a keyboard (5), and both sides of the bottom of the electric piano body (1) are fixedly connected with T-shaped slide bars (6) adapted to the T-shaped slide slot.

6. The projection-assisted practice electronic piano according to claim 4, characterized in that: The bottom of the support leg (4) is fixedly connected to a running wheel (7), and a brake pad is arranged inside the running wheel (7).

7. The projection-assisted practice electronic piano according to claim 2, characterized in that: One side of the surface of the screw rod (36) is rotatably connected to the inside of the other side of the inner wall of the groove by installing a C bearing and is penetrated through one side of the back side of the electric piano body (1), and the other end of the screw rod (36) is fixedly connected to a turning knob (8).

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