CN210837115U

CN210837115U - Adjustable piano central disk

Info

Publication number: CN210837115U
Application number: CN201921312249.0U
Authority: CN
Inventors: 靳伟明
Original assignee: Guangzhou Nuoyingdeman Piano Co ltd
Current assignee: Guangzhou Nuoyingdeman Piano Co ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-06-23
Anticipated expiration: 2029-08-14

Abstract

The utility model discloses an adjustable piano central disc, which comprises a long rod and a short rod, wherein the long rod and the short rod are square tubes, the long rod and the short rod form a rectangular structure after being welded, and lifting screws are arranged on the bottom surface and the side surface of the rectangular structure; the utility model discloses a piano center disk use square tube forms stable rectangle structure and sets up the lifting screw in the bottom surface and the side of rectangle structure with adjustable, the equipment workman can utilize lifting screw adjustment piano center disk and lie in the piano on the keyboard of center disk the height of vertical direction and in the position of horizontal direction, constantly change the keyboard and hit the distance of string machine in space all directions and reach reasonable position relation until keyboard and string machine, guarantee keyboard and the stable work cooperation of string machine, improve the quality of piano.

Description

Adjustable piano central disk

Technical Field

The utility model relates to a musical instrument field especially relates to a piano center disk with adjustable.

Background

The piano central disk is an indispensable component of the piano, and its main function is to support the whole keyboard system of the piano. The mounting position of the disk in the piano determines the position of the keyboard (i.e., each key) which must be highly matched with the position of the action to accurately trigger the action to produce sound. Because each part of the piano has inevitable errors in the manufacturing process, the piano has to be repeatedly adjusted during assembly, and sometimes even a batten is used for raising the keyboard to match the keyboard with the action machine, which is inconvenient.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is that the piano center disk among the prior art is immovable, is difficult to adjust the keyboard position, is unfavorable for piano equipment and debugging.

In order to solve the technical problem, the utility model discloses a technical scheme does: an adjustable piano central disc comprises a long rod and a short rod, wherein the long rod and the short rod are square tubes, the long rod and the short rod are welded to form a rectangular structure, and lifting screws are arranged on the bottom surface and the side surface of the rectangular structure; the rectangular structure is provided with at least one lifting screw at each of four corners, and at least two lifting screws are arranged on one side surface (one surface with one short rod facing outwards) of the rectangular structure.

Further, the long and short rods are embedded with wood strips, preferably beech wood strips.

Furthermore, the batten is in interference fit with the square pipes of the long rod and the short rod.

Furthermore, the number of the long rods is two, the number of the short rods is four, the long rods are parallel to the long rods, and all the short rods are parallel.

Has the advantages that: the utility model discloses a piano center disk use square tube forms stable rectangle structure and sets up the lifting screw in the bottom surface and the side of rectangle structure with adjustable, the equipment workman can utilize lifting screw adjustment piano center disk and lie in the piano on the keyboard of center disk the height of vertical direction and in the position of horizontal direction, constantly change the keyboard and hit the distance of string machine in space all directions and reach reasonable position relation until keyboard and string machine, guarantee keyboard and the stable work cooperation of string machine, improve the quality of piano.

Drawings

Fig. 1 is a front view of a center of an adjustable piano of embodiment 1.

3 fig. 3 2 3 is 3 a 3 sectional 3 view 3 a 3- 3 a 3 of 3 fig. 3 1 3. 3

Fig. 3 is a state diagram of an application of a disk in an adjustable piano of embodiment 1.

Wherein: 1. a long rod; 2. a short bar; 3. a square tube; 4. beech wood strips; 5. a keyboard; 6. and (5) lifting screws.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Example 1

As shown in fig. 1 and 2, the adjustable piano center of the present embodiment includes two long rods 1 and four short rods 2, the long rods 1 and the short rods 2 are iron square tubes 3, the long rods 1 and the short rods 2 are welded to form a rectangular structure as shown in fig. 1, the two long rods 1 and the two short rods 2 form four sides of the rectangular center, and the remaining two short rods 2 are welded between the two long rods 1 to serve as reinforcing beams of the center; the lifting screw 6 is arranged at each of four corners of the bottom surface of the rectangular structure, and two lifting screws 6 are arranged on the outward surface of one short rod at the edge of the rectangular structure;

beech 4 is embedded in all the long rods 1 and the short rods 2, and the beech 4 is in interference fit with the square tubes 3 of the long rods 1 and the short rods 2.

The adjustable piano center plate of the embodiment is used for bearing a keyboard 5 of a piano, and as shown in fig. 3 in particular, in the piano assembling process, an assembling worker can adjust the height of the piano center plate and the height of the keyboard 5 positioned on the piano center plate in the vertical direction and the position of the keyboard 5 in the horizontal direction by using a lifting screw 6 (generally, the adjusting range can reach 0-5mm), and continuously change the distance between the keyboard 5 and a string striking machine in each direction until the keyboard 5 and the string striking machine reach a reasonable position relation, so that the stable working cooperation of the keyboard 5 and the string striking machine is ensured, and the quality of the piano is improved.

Although the embodiments of the present invention have been described in the specification, these embodiments are only for the purpose of presentation and should not be construed as limiting the scope of the present invention. Various omissions, substitutions, and changes may be made without departing from the spirit and scope of the invention.

Claims

1. An adjustable piano central disk, which is characterized in that: the lifting device comprises a long rod and a short rod, wherein the long rod and the short rod are square tubes, the long rod and the short rod are welded to form a rectangular structure, and lifting screws are arranged on the bottom surface and the side surface of the rectangular structure; lifting screws are arranged at four corners of the bottom surface of the rectangular structure, and the lifting screws are arranged on at least one outward surface of the side surface of the rectangular structure.

2. The piano center of claim 1, wherein: the long rod and the short rod are embedded with wood strips.

3. The piano center of claim 2, wherein: the wood strips are beech wood strips.

4. The piano center of claim 2, wherein: the batten is in interference fit with the square pipes of the long rod and the short rod.

5. The piano midboard of any one of claims 1 to 4, wherein: the number of the long rods is two, the number of the short rods is four, the long rods are parallel to the long rods, and all the short rods are parallel.