WO2015127637A1

WO2015127637A1 - Hand-cranked music box

Info

Publication number: WO2015127637A1
Application number: PCT/CN2014/072661
Authority: WO
Inventors: 刘骏涛
Original assignee: 刘骏涛
Priority date: 2014-02-28
Filing date: 2014-02-28
Publication date: 2015-09-03

Abstract

A hand-cranked music box comprising a housing, a sound cylinder (6) provided with multiple protrusions, a transmission gear (61) fixed at one extremity of the sound cylinder (6), and sound plates (5) fitted with the sound cylinder (6), also comprising a crank handle (3) provided with a drive gear (31) and a fixing base (4) used for fixing the sound cylinder (6). The drive gear (31) is meshed with the transmission gear (61). A weight-reducing structure is provided on the fixing base (4). Because the weight-reducing structure is provided on the fixing base (4), the weight of fixing base (4) is reduced, thereby reducing the weight of the hand-cranked music box, thus facilitating a user in using and carrying the hand-cranked music box. When the user cranks the crank handle (3), the drive gear (31) drives the transmission gear (61) to drive the sound cylinder (6) into rotation, the protrusions on the sound cylinder (6) generate vibrations with the sound plates (5) to generate sounds, thus producing music.

Description

Hand-cranked music box

[Technical Field]

The present invention relates to the field of music devices, and more particularly to a hand-operated music box.

【Background technique】

I have designed a hand-operated music box comprising a housing, a sound tube provided with a plurality of bumps, a sound board mated with the sound tube, a transmission gear fixed at one end of the sound tube, and a The crank of the transmission gear meshes, the drive gear on the crank and the transmission gear mesh, the user swings the crank in one direction, drives the transmission gear, rotates the sound cylinder, and generates vibration between the bump on the sound cylinder and the soundboard. Thereby forming music. The housing includes a face shell and a bottom case fixed by snapping, and a fixing seat fixed to the inside of the bottom case for fixing the sound board and the sound tube. The fixed seat is heavy and inconvenient to use and carry.

[Summary of the Invention]

The technical problem to be solved by the present invention is to provide a hand-operated music box that reduces the weight of the fixed seat. The object of the present invention is achieved by the following technical solutions: a hand-operated music box comprising a housing, a sound tube provided with a plurality of bumps, a transmission gear fixed at one end of the sound tube, and the sound The cartridge-equipped soundboard further includes a rocker provided with a driving gear and a fixing seat for fixing the sound cylinder, the driving gear meshes with the transmission gear, and the fixing seat is provided with a weight reducing structure.

Preferably, the sound tube is fixed on the fixing base by the transmission gear and the fixed cymbal, and the weight reducing structure comprises a weight reducing hole disposed at a fixed position of the sound tube. One end of the fixed jaw is fixed on the sound tube, and the other end is fixed to the transmission gear, and the weight reduction hole is arranged to reduce the weight of the fixed seat.

Preferably, the fixing base is provided with a convex block, and the soundboard is fixed on the convex block by screws, and the weight reducing structure comprises an opposite surface of the soundboard fixed on the convex block. The first weight loss slot. The sound board is fixed on the bump by screws, which is firmly fixed and convenient to implement. Set the first weight reduction groove to reduce the weight of the fixed seat.

Preferably, the convex block and the soundboard are fixedly provided with a recess on one side, and a screw hole is arranged in the recess. Set the recess to reduce the weight, set the screw hole in the recess, and place it in the recess when the screw is fixed to prevent other devices from being fixed.

Preferably, the rocker is fixed on the fixing base by a fixing frame, and the weight reducing structure comprises a second weight reducing groove disposed on the fixing seat opposite to the fixed surface of the fixing frame. Set the second weight reduction slot to reduce weight.

Preferably, a connecting plate is disposed between the two longer sidewalls of the second weight reducing slot. The connection plate is added to increase the strength of the two sides of the second weight reduction groove, so that the strength can be ensured under the condition of reducing the weight.

Preferably, the fixing base is fixed to the bottom of the housing by screws, and the bottom of the housing is provided with a limiting slot for limiting the fixing seat. The screws are firmly fixed for easy installation and disassembly. The fixing seat is placed in the limiting slot, and the limiting slot acts as a limiting position for the fixing seat to make the fixing more firm.

Preferably, the fixing base is provided with a screw hole, and the fixing seat is provided with a recess around the screw hole. Set the groove to reduce weight.

Preferably, the fixing seat has a convex edge extending along the screw hole. Increase the contact area with the screw to make the fixing more secure.

Preferably, the screw holes are four and are spaced apart. The four screw holes are secured by four screws.

According to the invention, since the weight reduction structure is arranged on the fixing seat, the weight of the fixing seat can be reduced, thereby reducing the weight of the hand-operated music box, thereby facilitating the user to use and carry the hand-cranked music box; the user shakes the rocker The driving gear drives the transmission gear to drive the sound tube to rotate, and the bumps on the sound tube and the soundboard vibrate to make a sound, thereby forming music.

[Description of the Drawings]

Figure 1 is a longitudinal sectional view of a hand-operated music box in accordance with an embodiment of the present invention;

2 is a schematic structural view of a fixing base according to an embodiment of the present invention.

Among them: 1, upper shell; 2, lower shell; 3, rocker; 4, fixed seat; 41, weight reduction hole; 42, bump; 43, first weight loss slot; 44, second weight loss slot; , connecting plate; 46, screw hole; 47, groove; Sound board; 6, sound tube; 7, fixed frame

【detailed description】

The invention will now be further described with reference to the drawings and preferred embodiments.

The invention discloses a hand-operated music box, as shown in FIG. 1 and FIG. 2, comprising a casing, a sound tube 6 provided with a plurality of bumps, a transmission gear 61 fixed at the end of the sound tube 6 and the same The soundboard 5 to which the sound tube 6 is fitted further includes a rocker 3 provided with a driving gear 31 and a fixing base 4 for fixing the sound cylinder 6, the driving gear 31 meshing with a transmission gear 61, the fixing seat 4 has a weight reduction structure. In the invention, since the weight reduction structure is arranged on the fixing base 4, the weight of the fixing base 4 can be reduced, thereby reducing the weight of the hand-operated music box, thereby facilitating the user to use and carry the hand-cranked music box; The rocking lever 3 drives the transmission gear 61 to drive the sound cylinder 6 to rotate, and the bump on the sound cylinder 6 and the soundboard 5 vibrate to emit sound, thereby forming music.

As shown in Fig. 1, the casing includes an upper casing 1 and a lower casing 2, and the fixing base 4 is fixed to the bottom of the lower casing 2 by screws, and the screws are firmly fixed, which is convenient to realize. The bottom of the bottom case 2 is provided with a limiting slot (not shown) for limiting the fixing base 4, and the fixing seat 4 is placed in the limiting slot, and the limiting slot plays a limiting role on the fixing seat 4, Make the fixing stronger.

In this embodiment, the sound tube 6 is fixed on the fixing base 4 through the transmission gear 61 and a fixed cymbal (not shown), and the weight reducing structure includes a fixed position disposed in the sound tube 6. At the weight reducing hole 41, as shown in FIG. 2, one end of the fixing cymbal is fixed to the sound tube 6, and the other end is fixed to the transmission gear 61, and the weight reducing hole 41 is provided to reduce the weight of the fixing base 4.

As shown in FIG. 2 , the fixing base 4 is provided with a protrusion 42 , and the sound board is fixed on the protrusion 42 by screws. Referring to FIG. 1 , the weight reduction structure is disposed on the protrusion 42 . The first weight reduction groove 43 is located on the opposite side of the fixed soundboard 5. The soundboard 5 is fixed on the bump 42 by screws, and is fixed firmly and conveniently realized; the first weight reducing groove 43 is provided to reduce the weight of the fixing base 4. The protrusion 42 is fixed to the soundboard 5 with a recess (not shown), and a screw hole 46 is provided in the recess. Set the recess to reduce the weight, set the screw hole 46 in the recess, and place it in the recess when the screw is fixed to prevent other devices from being affected. Fixed.

In the present embodiment, the rocker 3 is fixed on the fixing base 4 by a fixing bracket 7, and the weight reducing structure comprises an opposite surface of the fixing bracket 4 which is fixed on the fixing bracket 4. The second weight reducing groove 44, as shown in Fig. 2, is provided with a second weight reducing groove 44 to reduce the weight. A connecting plate 45 is disposed between the two longer side walls of the second weight reducing groove 44. The connecting plate 45 is provided to increase the strength of both sides of the second weight reducing groove 44, so that the strength can be ensured under the premise of reducing the weight.

As shown in FIG. 2, the fixing base 4 is provided with a groove 47 around the screw hole 46. Set the groove 47 to reduce the weight. The fixing base 4 has a convex edge extending along the screw hole 46, and the protruding edge is provided to increase the contact area with the screw, so that the fixing is more firm. In this embodiment, the number of the screw holes 46 is plural, and the spacing is preferably four. The four screw holes 46 are fixed by four screws.

The above is a further detailed description of the present invention in connection with the specific preferred embodiments. It is not intended that the specific embodiments of the invention are limited to the description. It will be apparent to those skilled in the art that the present invention may be practiced without departing from the spirit and scope of the invention.

Claims

Rights request

1. A hand-cranked music box, including a shell, a sound barrel provided with a plurality of bumps, a transmission gear fixed on one end of the sound barrel, and a soundboard matching the sound barrel, characterized in that: It includes a tremolo handle provided with a driving gear and a fixed base for fixing the sound barrel. The driving gear meshes with the transmission gear, and the fixed base is provided with a weight-reducing structure.

2. The hand-operated music box according to claim 1, wherein the sound tube is fixed on the fixed base through the transmission gear and the fixed ring, and the weight reduction structure includes a sound tube arranged on the sound box. Weight-reducing hole at the fixed position of the barrel.

3. The hand-cranked music box according to claim 2, characterized in that: the fixed base is provided with a bump, the sound board is fixed on the bump by screws, and the weight-reducing structure includes a The first weight-reducing groove on the bump is located on the opposite surface where the soundboard is fixed.

4. The hand-operated music box according to claim 3, characterized in that a depression is provided on the side where the bump is fixed to the sound board, and a screw hole is provided in the depression.

5. The hand-cranked music box according to claim 3, characterized in that the rocker is fixed on the fixed base through a fixed frame, and the weight-reducing structure includes a handle located on the fixed base. The second weight-reducing groove on the opposite surface of the fixing bracket is fixed.

6. The hand-operated music box according to claim 5, characterized in that a connecting plate is provided between the two longer side walls of the second weight-reducing groove.

7. The hand-cranked music box according to claim 1, wherein the fixed base is fixed to the bottom of the housing through screws, and the bottom of the housing is provided with a limiter for limiting the fixed base. groove.

8. The hand-cranked music box as claimed in claim 7, wherein the fixing base is provided with a screw hole, and the fixing base is provided with a groove around the screw hole.

9. The hand-cranked music box as claimed in claim 8, wherein the fixing base has a convex edge extending along the screw hole.

10. The hand-cranked music box as claimed in claim 8, characterized in that there are four screw holes arranged at intervals.