CN2278258Y - Improved structure of music box - Google Patents

Abstract

The utility model discloses an improved structure of a music box, including a seat, a control circuit board, a fixed cover, a ring, an upper cover and other components. Aiming at the disadvantages that the conventional music box uses a spring to drive a drum to pluck a reed to produce music, which easily causes the playback speed to be unstable and the music to be monotonous, the utility model uses the combination of an electronic circuit and a sensor to produce music playback with a fixed speed and multiple tracks, and controls the continuous playback of the music through the action of the sensor.

Description

Improved structure of music box

The utility model relates to an improved structure of a music box, in particular to a music box which can work through the combination of an inductor and an electronic circuit.

A commonly used music box is driven by a clockwork spring with countless convex grains distributed on the surface, and then the convex grains on the drum are used to move the reeds on the side of the drum to produce sounds of different scales in series to form a complete piece of music. The structure is simple, but there are the following disadvantages:

1. Once the mainspring is tightened, the music will not stop unless the mainspring is slackened;

2. The surface area of the drum can only accommodate the next piece of music, or even a part of the music, which is tedious and cannot meet the needs of the listener;

3. The action principle of the mainspring is a non-linear operation. Therefore, when the mainspring is fully tightened, the music playback speed is the fastest, and when the mainspring is loose, the playback speed is too slow, so listen to it. It was very difficult.

The purpose of this utility model is to provide an improved structure of a music box, which uses a circuit to control the motor to work, and provides a music integrated circuit that can accommodate multiple pieces of music and an sensor that can be sensed by the movement of objects, so that the music can be played at a constant speed , and the sensor can be used to control the music playback.

In order to achieve the above purpose, the improved structure of the utility model includes a seat body, a control circuit board, a fixed cover, a ring and an upper cover.

The base is equipped with components such as battery box, motor, gear set, rotating shaft, switch and horn. A shaft groove and several screw holes are formed on the battery box, and the lower end of the rotating shaft is placed in the shaft groove and through the gear set and The motor is interactively connected, and there are two opposite fixed seats on the seat body, and several screw seats are provided on the periphery of the seat body; the control circuit board can control the movement process of the music box, and there is a music integrated circuit for storing several songs on it. And implicate the wires to the battery box, switch, motor, horn and the sensor described later; the fixed cover is provided with a screw seat relative to the screw hole column on the battery box, and a pin is provided at the position of the motor , and a perforation is set in the center of the fixed cover; the ring is fitted on the seat body, and an inductor is provided on the side of the upper edge; There are threaded posts, and a perforated hole is drilled in the center of the upper cover.

Thus, the fixing cover is screwed on the base body to fix the motor and the rotating shaft, then the ring is surrounded on the base body, and the cover is closed on the ring top cover, and after being fixed with screws, the assembly is completed. When in use, put the switch in the ON state, and when the sensor senses that the object is moving in front, the music integrated circuit can be activated to play music at a fixed speed, and the rotating shaft is also driven by the motor and the gear set to rotate. When the music stops , the sensor can detect whether the object is moving in front of it, and decide whether to continue playing the music.

The improved structure of the music box of the utility model can also add several small rotating shafts meshing with the rotating shaft beside the rotating shaft, and drill holes in the corresponding fixed cover and the upper cover for the small rotating shaft to pass through, so that the upper cover can Rich and varied dolls can be presented.

After the above-mentioned structure is adopted, the improved structure of the music box of the present invention uses electronic circuits with music integrated circuits and sensors, not only to provide a rotating mechanism, but also to play multiple pieces of music at a fixed speed, and to sense moving objects to determine whether the music should be continued. , achieving the effect of simple operation and multiple changes in the repertoire.

Below in conjunction with drawing and embodiment the utility model is described in further detail.

Fig. 1 is a three-dimensional exploded view of the utility model;

Fig. 2 is the front view of the utility model;

Fig. 3 is the action flowchart of the present utility model.

Please refer to FIG. 1 , the utility model includes components such as a seat body 1 , a control circuit board 2 , a fixed cover 3 , a ring 4 , and an upper cover 5 . Among them: the seat body 1 is a circular base with a battery box 11 on it, and two screw holes 111 and a shaft groove 112 are formed on the battery box 11, and a motor 12 is provided on the seat body 1, and is indirectly transparent Through the gear set 13 and the rotating shaft 14, the mutual driving connection is made, and the rotating shaft 14 is inserted in the shaft groove 112; a horn 15 and a switch 16 are also provided on the base body 1 (the toggle terminals are exposed below the base body for controlling The start of the music box) and three scattered screw bases 17, and two relative circuit board holders 18 are provided on one side of the battery box 11, which can be used to fix the following control circuit board 2.

The control circuit board 2 is used to control the actions of the components of the music box. There is a music integrated circuit 21 on it, which can store several complete music pieces. On the motor 12, the horn 15, the switch 16 and the sensor 41 described later.

The fixed cover 3 is used to fix the rotating shaft 14 and the motor 12. A screw seat 31 is formed under the fixed cover 3 relative to the screw hole post 11 on the battery case 11, and a pin post 32 is formed relative to the position of the motor 12 to fix the A perforation 33 is formed in the center of the cover 3 through which the rotating shaft 14 can penetrate.

The ring 4 fits on the periphery of the base 1 , and an inductor 41 is installed on the upper side of the ring 4 .

The upper cover 5 is in the shape of a disk, and is closed on the ring 4. A corresponding screw hole column 51 is provided at the position of the screw seat 17 of the seat body 1 below the upper cover 5, and the center position of the upper cover 5 is Then a perforation 52 is formed.

Continue referring to Fig. 1 and Fig. 2, when the utility model is assembled, the lower end of the rotating shaft 14 is firmly placed in the shaft groove 112 on the battery box 11, and the control circuit board 2 is inserted between the two fixing seats 18, and then the The perforation 33 of the fixed cover 3 is inserted into the rotating shaft 14, forcing the screw seat 31 of the fixed cover 3 to abut against the screw hole post 111 of the battery box 11, while the pin post 32 of the fixed cover 3 is pressed against the top surface of the motor 12, and the screw seat 31 is pressed against the top surface of the motor 12. Screw the second screw seat 31 and the screw hole column 111, so that the fixed cover 3 is covered above each part, and the parts such as the motor 12 and the rotating shaft 14 are fixed on the base body 1 to avoid deviation; secondly, the ring 4 is set on the base body 1 and form an outer wall at the peripheral edge of the seat body 1; finally, the upper cover 5 is covered on the top edge of the ring 4, so that the axis of the rotating shaft 14 passes through the perforation 52 of the upper cover 5, and each screw of the upper cover 5 Hole column 51 just arrives on each screw base 17 of seat body 1, utilizes screw to screw each screw base 17 and screw hole column 51 after screwing, just completes the utility model assembly.

When the utility model is being implemented, please refer to Figures 2 and 3, first turn the switch 16 to the ON position, the battery box 11 starts to supply power to each power component, and is in a ready state; when the user blocks the hand in front of the sensor 14 , so that the sensor 41 senses a trigger signal to the control circuit board 2. At this time, the circuit starts the music integrated circuit 21 to make the speaker 15 sound at a constant speed. After the first music is played, the music box will stop operating and return to the ready state; if you want to continue listening to the next piece of music, block your hand again in front of the sensor 41, and the music box will start to move and send out wonderful music; if you don't want to listen Or want to interrupt, only need switch 16 to switch to OFF state and get final product.

In addition, the utility model can also add several engaging small rotating shafts 14 beside the rotating shaft 14, and drill holes 33, 52 at the corresponding fixed cover 3 and upper cover 5, so that the upper cover 5 can be used as a stage base. seat, presenting a richer and more varied doll.

Claims (2)

1, a kind of structure-improved of music box, comprise pedestal, control circuit board, fixed cap, ring and loam cake, it is characterized in that: pedestal is provided with members such as battery case, motor, gear set, rotating shaft, switch and loudspeaker, moulding one axial trough and an above screw hole column on battery case, and the rotating shaft lower end is arranged in the axial trough, and see through gear set and the interactive binding of motor, on pedestal, be provided with two relative holders in addition, and establish one with the seat of tightening up a screw at the pedestal periphery; Establish one on the control circuit board and store the music integrated circuit of a first above melody, and involve battery case, switch, motor, loudspeaker and the inductor of lead to pedestal; Be provided with the screw seat with respect to the screw hole column position on the battery case on the fixed cap, and be provided with a pin, and be installed with a perforation in fixed cap central authorities in the position of motor; Ring is linked on the pedestal, and its upper limb side is provided with an inductor; Loam cake covers on ring, and loam cake below each screw seat of pedestal has relatively installed screw hole column, and loam cake central authorities are drilled with perforation.

2, the structure-improved of music box according to claim 1 is characterized in that: rotating shaft is other to add the little rotating shaft that is meshed with rotating shaft more than, and is drilled with perforation at corresponding fixed cap and loam cake place, and little rotating shaft is located in this perforation.

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