CN213763385U

CN213763385U - A dust keeper for on piano

Info

Publication number: CN213763385U
Application number: CN202022768956.XU
Authority: CN
Inventors: 刘红梅
Original assignee: Aks Vocational And Technical College
Current assignee: Aks Vocational And Technical College
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-07-23
Anticipated expiration: 2030-11-26

Abstract

A dustproof device used on a piano relates to the technical field of musical instruments, a rolling screen cavity and a string cavity are respectively arranged in a piano box body by utilizing a partition plate, the rolling screen cavity is positioned at the left side of the string cavity, two end shafts of a spring rewinder are respectively inserted in bearings embedded on the front side wall and the rear side wall in the rolling screen cavity, the bearings are embedded in openings on the front side wall and the rear side wall in the string cavity, two ends of a rotating rod are respectively inserted in two bearings which correspond to the front side and the rear side, one end of the dustproof screen is wound on the spring rewinder, a first connecting buckle is respectively fixed at the front side and the rear side of the other end of the dustproof screen, a second connecting buckle is fixed at the bottom of the piano box cover, one end of a connecting wire is fixed with the second connecting buckle, the other end of the connecting wire is fixed with the first connecting buckle, the design is reasonable, the cover can cover one deck dust screen on the string case when opening behind the piano, has effectively prevented that the dust from dropping into and influencing the life of string behind the string case.

Description

A dust keeper for on piano

Technical Field

The utility model relates to a musical instrument technical field, concretely relates to a dust keeper for on piano.

Background

The piano is a large-scale musical instrument, when depositing, generally need prevent dust, because the inside can seriously influence tone quality of dust entering, even cause the damage, in the traditional technique, there are some dust covers, but the effect is different, grand piano is a kind of piano that is used for large-scale performance or professional, grand piano is the musical instrument of complicated structure, environmental condition and daily maintenance mode can influence its performance, acoustics quality and life, grand piano is in order to exert the sound best when using, need open the upper cover, open the upper cover the back string and just expose in the air, the dust in the air can drop on the string, long time will produce and pile up on the string, influence the life of string, need to improve urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide a reasonable in design's a dust keeper for on piano, can cover the one deck dust screen on the string case when the lid is opened behind the piano, effectively prevented that the dust from dropping into the string case, cause the dust to pile up, influence the life of string.

In order to achieve the above purpose, the utility model adopts the following technical proposal: it contains the baffle, the spring backrush ware, the bearing, the bull stick, the dust screen, a connector link, connecting wire and No. two connector links, utilize the baffle to establish out a roll net chamber and a string chamber separately in the piano box, it is located the left side in string chamber to roll up the net chamber, the both ends axle of spring backrush ware is inserted respectively and is established in the bearing of inlaying on the lateral wall around rolling up the net intracavity, all inlay in the opening on the lateral wall around the string intracavity and be equipped with the bearing, the both ends of bull stick are inserted respectively and are established in two bearings that correspond around, the one end of dust screen is around establishing on the spring backrush ware, both sides are fixed with a connector link respectively around the other end of dust screen, the bottom of piano case lid is fixed with No. two connector links, the one end of connecting wire is fixed with No. two connector links, the other end and the connector link of connecting wire are fixed.

Furthermore, the dust screen comprises a dust prevention layer and a moisture absorption layer, and the dust prevention layer is positioned above the moisture absorption layer.

Further, the bottom of piano case lid be fixed with the surrounding edge, the inboard perisporium of surrounding edge sets up with the laminating of the lateral wall of piano case body.

Further, the piano box on all seted up the spout on the front and back both edges, the spout internalization is provided with cylindrical slider, the bottom and the cylindrical slider of telescopic link are fixed, the bottom of piano case lid is fixed with the axle bed, the activity is provided with the pivot on the axle bed, the output and the pivot of telescopic link are fixed.

After the structure is adopted, the beneficial effects of the utility model are that: the utility model provides a dust keeper for on piano, reasonable in design can cover the one deck dust screen on the string case when the piano back cover is opened, has effectively prevented that the dust from dropping into the string case, causes the dust to pile up, influences the life of string.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a right side view of fig. 1.

Fig. 3 is a sectional view taken along line a-a in fig. 1.

Fig. 4 is a sectional view taken along line B-B in fig. 2.

Fig. 5 is a schematic structural view of the middle dust screen of the present invention.

Fig. 6 is an enlarged view of the portion C in fig. 3.

Fig. 7 is an enlarged view of a portion D in fig. 4.

Description of reference numerals:

the device comprises a partition plate 1, a net rolling cavity 2, a string cavity 3, a spring rewinder 4, a bearing 5, a rotating rod 6, a dustproof net 7, a first connecting buckle 8, a connecting wire 9, a second connecting buckle 10, a sliding groove 11, a cylindrical sliding block 12, a telescopic rod 13, a shaft seat 14, a rotating shaft 15, a surrounding edge 16, a dustproof layer 17 and a moisture absorption layer 18.

The specific implementation mode is as follows:

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 7, the following technical solutions are adopted in the present embodiment: the piano comprises a partition plate 1, a spring recoiling device 4, bearings 5, a rotating rod 6, a dustproof net 7, a first connecting buckle 8, a connecting wire 9 and a second connecting buckle 10, wherein the bottom of a piano box cover is fixedly riveted with a surrounding edge 16, the inner peripheral wall of the surrounding edge 16 is attached to the outer side wall of the piano box body, a net rolling cavity 2 and a string cavity 3 are respectively arranged in the piano box body by utilizing the partition plate 1, the net rolling cavity 2 is positioned at the left side of the string cavity 3, two end shafts of the spring recoiling device 4 are respectively inserted in the bearings embedded on the front and rear side walls in the net rolling cavity 2, the bearings 5 are respectively embedded in openings on the front and rear side walls in the string cavity 4, two ends of the rotating rod 6 are respectively inserted in the two bearings 5 corresponding to the front and the rear, the dustproof net 7 is composed of a dustproof layer 17 and a moisture absorption layer 18, the dustproof layer 17 is positioned above the moisture absorption layer 18, the dustproof layer 17 is fixedly riveted with the moisture absorption layer 18, one end of the dustproof net 7 is wound on the spring recoiling device 4, both sides are riveted joint fastener 8 respectively around the other end of dust screen 7, piano case lid's bottom riveted joint has No. two connector fasteners 10, the one end and No. two connector fasteners 10 riveted joint of connecting wire 9, connecting wire 14's the other end and a connector fastener 8 riveted joint, spout 11 has all been seted up on the piano case back and forth both edges, spout 11 internalization is provided with cylindrical slider 12, the bottom and the cylindrical slider 12 welded fastening of telescopic link 13 (the structure is the same with umbrella stick structure principle), piano case lid's bottom riveted joint has axle bed 14, the activity is provided with pivot 15 on the axle bed 14, telescopic link 13's output and pivot 15 welded fastening.

The working principle of the specific embodiment is as follows: when a player needs to play, the piano box cover is opened, the second connecting buckle 10 pulls the connecting wire 9 along with the opening of the piano box cover, the spring rewinder 4 rotates to release the dustproof net 7, the connecting wire 9 pulls the dustproof net 7 to move rightwards to cover the string cavity 3, dust and water vapor are effectively prevented from entering the string cavity 3 to influence the service life of strings, the telescopic rod 13 is pulled, the cylindrical sliding block 12 is moved to the right end of the sliding groove 11, the length of the telescopic rod 13 is adjusted, the telescopic rod 13 and the piano box cover are in a vertical state, thereby support the piano case lid, begin to play, play the back that finishes, adjust the telescopic link 13 and return and contract, remove cylindrical slider 12 to the left end of spout 11, close the piano case lid, the telescopic link 13 is whole and axle bed 15 all places in the spout 11, the spring backrush ware 4 returns and contracts, rolls up dust screen 7, and the lateral wall of piano case is framed to surrounding edge 16, prevents effectively that the dust from getting into.

After adopting above-mentioned structure, this embodiment's beneficial effect is as follows:

1. a cylindrical sliding block 12 is movably arranged in the sliding chute 11, and the bottom of the telescopic rod 13 is fixedly welded with the cylindrical sliding block 12, so that the piano box cover can be conveniently supported, the unstable supporting condition is avoided, and the telescopic rod 13 is easy to store integrally;

2. one end of the dust screen 7 is wound on the spring rewinder 4, a first connecting buckle 8 is fixedly riveted to the front side and the rear side of the other end of the dust screen 7 respectively, and the dust screen 7 covers the upper part of the string cavity 3 when the piano box cover is opened so as to prevent dust from entering;

3. the dustproof net 7 consists of a dustproof layer 17 and a moisture absorption layer 18, the dustproof layer 17 is positioned above the moisture absorption layer 18, so that dust and water vapor are prevented from entering the string cavity 3, and the string cavity 3 is prevented from being affected by damp and damaged to influence the service life of strings;

4. the two end shafts of the spring rewinder 4 are respectively inserted into bearings embedded on the front and rear side walls in the roll net cavity 2, so that the dust screen 7 can be conveniently rolled while the piano box cover is closed.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a dust keeper for on piano which characterized in that: the novel piano is characterized by comprising a partition plate (1), a spring recoiling device (4), bearings (5), a rotary rod (6), a dustproof net (7), a first connecting buckle (8), a connecting wire (9) and a second connecting buckle (10), wherein the partition plate (1) is utilized in the piano box body to respectively arrange a net rolling cavity (2) and a string cavity (3), the net rolling cavity (2) is positioned on the left side of the string cavity (3), shafts at two ends of the spring recoiling device (4) are respectively inserted into the bearings embedded on the front side wall and the rear side wall in the net rolling cavity (2), the bearings (5) are respectively embedded in openings on the front side wall and the rear side wall in the string cavity (3), two ends of the rotary rod (6) are respectively inserted into the two bearings (5) corresponding to the front and the rear, one end of the dustproof net (7) is wound on the spring recoiling device (4), the first connecting buckle (8) is respectively fixed on the front side and the rear side of the other end of the dustproof net (7), and the second connecting buckle (10) are fixed at the bottom of the piano box cover, one end of the connecting wire (9) is fixed with the second connecting buckle (10), and the other end of the connecting wire (9) is fixed with the first connecting buckle (8).

2. A dust-proof device for a piano as claimed in claim 1, wherein: the dustproof net (7) is composed of a dustproof layer (17) and a moisture absorption layer (18), and the dustproof layer (17) is positioned above the moisture absorption layer (18).

3. A dust-proof device for a piano as claimed in claim 1, wherein: the bottom of piano case lid be fixed with surrounding edge (16), the inboard perisporium of surrounding edge (16) sets up with the laminating of the lateral wall of piano case body.

4. A dust-proof device for a piano as claimed in claim 1, wherein: the piano box body on all seted up spout (11) on both sides edge around on, spout (11) internalization is provided with cylindrical slider (12), the bottom and cylindrical slider (12) of telescopic link (13) are fixed, the bottom of piano case lid is fixed with axle bed (14), the activity is provided with pivot (15) on axle bed (14), the output and pivot (15) of telescopic link (13) are fixed.