CN210722414U

CN210722414U - Piano string shaft nail sleeve

Info

Publication number: CN210722414U
Application number: CN201920905730.4U
Authority: CN
Inventors: 李金光
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-06-09
Anticipated expiration: 2029-06-17

Abstract

The utility model provides a piano string shaft nail sleeve, which solves the problems that the nail hole is enlarged more and the whole piano is scrapped due to the hard abrasion of a steel string shaft nail to a wooden piano body; the technical problem that the existing piano tuning operation efficiency is low is solved, the piano tuning operation device is provided with a sleeve body, openings are formed in two ends of the sleeve body, at least two longitudinal openings are formed in the circumferential direction of the sleeve body, an internal thread is arranged on the inner wall of the sleeve body, the internal thread of the inner wall of the sleeve body is matched with the outer surface of a peg in a threaded mode, and at least two circular bulges are arranged on the outer wall of the sleeve body. The utility model can be widely used for prolonging the service life of the piano; prolonging the stress creep time of the string; the tuning times are reduced; the thicker string shaft nail is reduced or even not required to be replaced; the tuning operation is simpler and more effective.

Description

Piano string shaft nail sleeve

Technical Field

The utility model belongs to the technical field of the piano tuning technique and specifically relates to a piano string axle nail sleeve pipe is related to.

Background

The piano is taken as one of musical instruments, is accepted by more and more people at present, the quality of the piano mainly depends on the quality of the tone quality of the piano, the tone quality of the piano is guaranteed by the tension degree of the strings, the strings can vibrate during playing due to the fact that the strings are in the tension state for a long time, the strings can generate stress creep, and therefore the tones are changed, therefore, the piano generally needs to adjust the strings once to twice every year, the traditional string adjustment mainly adopts a string adjusting wrench to transfer a string shaft for adjusting the strings, and the string adjusting piano is tuned by rotating the position of the string shaft in a hole of a tuning plate of the piano: the peg is not rotated when the force is small, and the step jump is easy when the force is too large. The second step is as follows: through the change of temperature and humidity in spring, summer, autumn and winter, the hard wearing of steel peg to wooden sound-adjusting board can lead to the nail hole bigger and bigger, and the piano is scrapped at last.

The sleeve is arranged outside the tuning peg in the prior art, so that the tuning peg can rotate in the tuning board conveniently, the wood hole is prevented from being enlarged, the tuning string cannot slide, expected effects cannot be achieved, the sleeve is difficult to insert into the tuning board in the manufacturing process, in the tuning process, the operation is complex, the use is inconvenient, and the tuning efficiency is low.

Disclosure of Invention

The utility model discloses be exactly to current piano tuning complicated technical problem of operation and tuning efficiency lower, wooden tuning peg hole is easily enlarged the problem, provide a piano string axle nail sleeve pipe that easy operation and efficiency are higher.

Therefore, the utility model discloses be equipped with the sleeve pipe body, the equal opening setting in both ends of sleeve pipe body, two at least vertical openings are seted up to sleeve pipe body circumferencial direction, and sleeve pipe body inner wall is equipped with the internal thread, and the internal thread and the peg surface screw thread of sleeve pipe body inner wall cooperate.

Preferably, the top end of the sleeve body is provided with a parallel flanging.

Preferably, the upper portion of the sleeve body is a cylinder, and the lower portion of the sleeve body is a cone.

Preferably, the longitudinal opening opens from the top end of the sleeve body to the bottom end of the cylinder.

Preferably, the outer wall of the sleeve body is provided with at least two circular bulges.

The sleeve body is provided with at least two longitudinal openings to increase the contact area between the tuning peg and the tuning board and increase the friction during rotation, and the lower part of the sleeve body is designed into a cone, so that the sleeve body is conveniently inserted into the tuning board; through set up at sleeve pipe body inner wall and peg surface screw thread matched with screw thread, when rotating the peg tuning, steady slip does not have the jump sensation, practical convenient.

Drawings

FIG. 1 is a schematic view of the assembly of the present invention;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a schematic sectional view of the present invention.

The symbols in the drawings illustrate that:

1. a sleeve body; 2. a sound adjusting plate; 3. a peg; 4. a cylinder; 5. a cone; 6. a longitudinal opening; 7. parallel flanging; 8. an internal thread; 9. a thread; 10. a circular protrusion.

Detailed Description

The following describes in detail embodiments of the present invention with reference to the drawings.

As shown in fig. 1, the utility model discloses be equipped with sleeve pipe body 1, sleeve pipe body 1 is installed in the punchhole of tuning board 2, and in sleeve pipe body 1 was located to peg 3, sleeve pipe body was cramped by the shrink force of tuning board 2 punchhole, and peg 3 was cramped by sleeve pipe body 1, and sleeve pipe body 1 is fixed motionless in the punchhole of tuning board 2.

As shown in fig. 2 and 3, both ends of sleeve body 1 are opened, sleeve body 1 is arranged on the upper portion as cylinder 4, the lower portion of sleeve body 1 is arranged as cone 5, setting of cone 5 can facilitate inserting sleeve body 1 into the hole of tuning board 2, two longitudinal openings 6 are arranged in the circumferential direction of sleeve body 1, two longitudinal openings 6 are symmetrically arranged in the circumferential direction, longitudinal openings 6 are arranged from the top end of sleeve body 1 to the bottom end of cylinder 4, contact area of peg 3 and tuning board 2 can be increased by arrangement of longitudinal openings 6, friction force between peg 3 and tuning board 2 is increased when tuning is rotated, and damage to a piano caused by abrasion of tuning board 2 is avoided.

The top end of the sleeve body 1 is provided with a parallel flanging 7, so that the eyelet connection between the sleeve body 1 and the sound adjusting plate 2 is more compact and firm.

The inner wall of the sleeve body 1 is provided with the internal thread 8, the internal thread 8 of the inner wall of the sleeve body 1 is matched with the external surface thread 9 of the peg 3, the peg 3 can be inserted into the sleeve body 1 through thread fit, and the peg 3 and the sleeve body 1 rotate through threads when tuning, so that manpower and material resources are effectively saved.

Preferably, the outer wall of the sleeve body 1 is provided with two circular protrusions 10, the sleeve body 1 is embedded into holes of the tuning board 2 through the two circular protrusions 10, so that the sleeve body 1 is tightly attached to the tuning board 2, and the sleeve body 1 is prevented from moving relative to the tuning board 2 when the tuning peg 3 is prevented from rotating.

The utility model discloses a theory of operation is: the utility model provides a piano tuning sleeve, during the piano assembly, insert the downthehole of tuning board 2 with the bottom of sleeve pipe body 1 earlier, make the parallel turn-ups 7 card in top of sleeve pipe body 1 at the eyelet opening part of tuning board 2, then screw in peg 3 in sleeve pipe body 1 through screw-thread fit's mode, make the other end of peg 3 expose outside sleeve pipe body 1, sleeve pipe body 1 is cramped by the shrink force of the eyelet of tuning board 2, peg 3 is cramped by opening sleeve pipe 1 again, sleeve pipe body 1 is fixed in the eyelet of tuning board 2 relative to the eyelet of tuning board 2, peg 3 can be in sleeve pipe body 1 relative rotation under the effect of external force; when the tuning, rotate peg 3, make peg 3 can rotate relatively in sleeve pipe body 1, the tightness of string in peg 3 is worn in the adjustment, accomplishes piano tuning work, the effectual tuning efficiency that has improved.

However, the above description is only an embodiment of the present invention, and the scope of the present invention should not be limited thereto, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.

Claims

1. The utility model provides a piano string shaft nail sleeve pipe, its is equipped with the sleeve pipe body, the equal opening setting in both ends of sleeve pipe body, its characterized in that, at least two vertical openings are seted up to sleeve pipe body circumferencial direction, cylinder bottom is seted up from the top of sleeve pipe body to vertical opening, sleeve pipe body inner wall is equipped with the internal thread, the internal thread and the peg surface screw thread of sleeve pipe body inner wall cooperate, establish to the cylinder on sleeve pipe body upper portion, establish to the cone in the lower part of sleeve pipe body, sleeve pipe body outer wall is equipped with two at least circular archs.

2. The piano string pin sleeve according to claim 1, wherein the top end of the sleeve body is provided with parallel flanges.