CN114387941A

CN114387941A - Piano keyboard cover plate connector

Info

Publication number: CN114387941A
Application number: CN202210071492.8A
Authority: CN
Inventors: 郭丽微; 李咏梅
Original assignee: Hebei Normal University of Science and Technology
Current assignee: Hebei Normal University of Science and Technology
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-04-22

Abstract

The invention belongs to the technical field of piano keyboard cover plate connectors, and particularly relates to a piano keyboard cover plate connector which comprises a connector, wherein a threaded rod for transmission is arranged at the side end of the connector, the upper end of the connector is connected with a piano keyboard through a connecting block, the other end of the piano keyboard is connected with a base through a rotating shaft, the L-shaped block is controlled through the threaded rod so as to limit and fix the connector and the connecting block, the connector and the connecting block are quickly separated from clamping through the threaded rod during cleaning and maintenance, the piano keyboard is conveniently and quickly turned over, the piano keyboard and the base are cleaned, a contact seat is connected with the connector through the contact block through the arrangement of the contact seat, the contact seat is fixedly connected with the base through the transmission rod, and the transmission rod and the contact seat are in rotary transmission by driving a transmission handle through a spanner, and then the contact base is disassembled, and the contact base is quickly maintained and replaced.

Description

Piano keyboard cover plate connector

Technical Field

The invention belongs to the technical field of piano key cover plate connectors, and particularly relates to a piano key cover plate connector.

Background

The piano is a keyboard instrument in Western classical music, has a name of 'king of instrument', consists of 88 keys (52 white keys and 36 black keys) and a metal string soundboard, and is invented in 1709 by Butuomo Korea Kreisdori (1655-.

Original piano keyboard apron connector piano often relates to opening and shutting of musical instrument lid in the use, relates to slowly falling the ware, apron and apron hinge between the in-process that opens and shuts, along with the increase of live time and use number of times, this phenomenon that both influences the quality and influence pleasing to the eye can finally take place to fracture for panel, even can't normally open and shut to the apron during serious, threatens normal use production, when the manual work is dismantled, and is very difficult.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a piano keyboard cover plate connector which has the characteristics of simple structure, compact connection, convenience in mounting and dismounting, convenience in internal cleaning and low noise in use.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a piano keyboard apron connector, includes the connector, the connector side is equipped with the threaded rod that is used for the transmission effect, the connector upper end is connected with the key through the connecting block, the key other end is connected with the base through the pivot, the connector lower extreme is connected with contact seat department contact block through the spout, contact seat contact block is connected with contact seat, contact seat lower extreme is connected with the base through the transfer line, base department is equipped with the transmission handle that is used for the transmission effect.

According to the preferable technical scheme of the piano key cover plate connector, the threaded rod is screwed with the connector through threads, the other end of the threaded rod is in limit sleeve connection with the trapezoidal block, the trapezoidal block is in a trapezoidal shape, and two ends of the trapezoidal block are in contact with the L-shaped block.

As a preferred technical scheme of the piano key cover plate connector, the L-shaped block is L-shaped, one end of the L-shaped block is connected with the rectangular groove at the lower end of the connecting block through the L-shaped lug, and the other end of the L-shaped block is limited in the rectangular groove in the connector in a sliding mode and is connected with the connector through the reset spring.

According to the preferable technical scheme of the piano key cover plate connector, the lower end of the transmission handle is fixedly connected with the transmission gear mechanism, the transmission gear mechanism is meshed and connected with the second rack through the first rack, and the second rack is meshed and connected with the transmission rod through the tooth grooves.

According to the preferable technical scheme of the piano key cover plate connector, circular grooves are formed in two ends of the contact block of the contact base, and a buffer spring is fixedly connected in each circular groove of the contact base.

According to the preferable technical scheme of the piano key cover plate connector, the lower end of the connecting block is fixedly provided with the rectangular block, the rectangular block of the connecting block is provided with the rectangular groove used for being in limit clamping connection with the L-shaped block, and the upper end of the connecting block is fixedly connected with the piano keys.

According to the preferable technical scheme of the piano key cover plate connector, one end of the transmission rod is provided with a transmission tooth groove, and the other end of the transmission rod is provided with a thread groove for screwing and fixing connection.

Compared with the prior art, the invention has the beneficial effects that: through the setting of L-shaped piece, the L-shaped piece is controlled through the threaded rod, thereby with connector and the spacing fixed of connecting block, when clean maintenance, break away from the block through the threaded rod with connector and connecting block fast, thereby be convenient for overturn the key fast, carry out clear effect with base department to the key, through the setting of contacting the seat, it is connected with the connector through contacting the piece to contact the seat, contact the seat and pass through transfer line and base fixed connection in this setting, this department drives the transmission handle through the spanner and rotates, thereby close the transmission with contacting the seat soon with the transfer line, and then will contact the seat and dismantle, carry out quick maintenance and change to contacting the seat, through buffer spring's setting, buffer spring plays the absorbing effect of buffering, the impact force between reduction connector that can be fine and the contact seat, thereby reduce vibrations and noise, and effectual improvement connector, The service stability and the life of components such as the contact seat, the connecting block and the like.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

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

FIG. 2 is a schematic view of the front view of the present invention in partial cross-section;

FIG. 3 is an enlarged partial view of portion A of FIG. 2;

FIG. 4 is a side view, partially in section, schematically illustrating the structure of the present invention;

FIG. 5 is a schematic top view, partially in section, of the present invention;

FIG. 6 is a schematic view of the driving connection structure of the driving handle of the present invention;

in the figure: 1. a connector; 2. a contact base; 3. a transmission rod; 4. a base; 5. a drive handle; 6. keys of keys; 7. connecting blocks; 8. a threaded rod; 9. an L-shaped block; 10. a trapezoidal block; 11. a return spring; 12. a buffer spring; 13. a transmission gear mechanism; 14. a first rack; 15. and a second rack.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-6, the present invention provides the following technical solutions: the utility model provides a piano keyboard apron connector, includes

connector

1, 1 side of connector is equipped with threaded rod 8 that is used for the transmission, 1 upper end of connector is connected with key 6 through connecting block 7, the key 6 other end is connected with base 4 through the pivot, 1 lower extreme of connector is connected with 2 contact blocks of contact base through the spout, 2 contact blocks of contact base are connected with

contact base

2, 2 lower extremes of contact base are connected with base 4 through

transfer line

3, 4 departments of base are equipped with transmission handle 5 that are used for the transmission.

Specifically, threaded rod 8 closes with connector 1 through the screw thread soon and is connected, and the spacing registrated connection of the other end is in trapezoidal block 10 departments, and trapezoidal block 10 is the trapezoidal form, and both ends and the 9 contact of L-shaped block, crosses threaded rod 8 and drives trapezoidal block 10 and slide in this embodiment to adjust the atress to L-shaped block 9, thereby drive L-shaped block 9 and slide in 1 rectangular channel of main part.

Specifically, L shape piece 9 is the L shape, and 9 one end of L shape piece is connected with 7 lower extreme rectangular channels of connecting block through L shape lug, and the other end slides spacing rectangular channel in connector 1, and is connected with connector 1 through reset spring 11, through 9 reset effect in this embodiment, can the quick adjustment connector 1 with the 7 block circumstances of connecting block to be convenient for with the upset of key 6 with fixed, and then be convenient for carry out clear effect to key 6 and base 4 department.

Specifically, 5 lower extremes of transmission handle and transmission gear mechanism 13 fixed connection, transmission gear mechanism 13 is connected through a rack 14 and No. two rack 15 meshes, and No. two rack 15 passes through the tooth's socket and is connected with the meshing of transfer line 3, drives transmission handle 5 through the spanner in this embodiment and rotates to close the transmission with transfer line 3 and contact seat 2 soon, and then will contact seat 2 and dismantle, carry out quick maintenance and change to contact seat 2.

Specifically, the both ends of contact seat 2 contact piece are equipped with circular recess, and fixedly connected with buffer spring 12 in the contact seat 2 circular recess, buffer spring 12 play buffering absorbing effect in this embodiment, reduction connector 1 that can be fine and the impact force between the contact seat 2 to reduce vibrations and noise, and the stability in use and the life-span of components such as effectual improvement connector 1, contact seat 2, connecting block 7.

Specifically, the fixed rectangular block that is equipped with of 7 lower extremes of connecting block, 7 rectangular block departments of connecting block are equipped with and are used for the rectangular channel be connected with the spacing block of L-

shaped piece

9, 7 upper ends of connecting block and 6 fixed connection of key, are connected with key 6 through connecting block 7 through connector 1 in this embodiment, and connecting block 7 plays the effect of connecting the transition.

Specifically, one end of the transmission rod 3 is set as a transmission tooth groove, and the other end is set as a thread groove for screwing and fixing connection, and the transmission rod 3 plays a role in transmission connection in the embodiment.

The working principle and the using process of the invention are as follows: the invention installs the threaded hole of the side end of the contact base 2 and the base 4 in a positioning way, the transmission handle 5 is driven to rotate by a wrench, the transmission handle 5 drives the transmission gear mechanism 13 to rotate, the transmission gear mechanism 13 drives the second rack 15 to rotate by the first rack 14, the second rack 15 drives the transmission rod 3 to rotate by a tooth space, the transmission rod 3 is screwed and fixed with the contact base 2 by the thread of the other end, one end of the key 6 is fixedly connected with the base 4 by a rotating shaft, the other end is connected with the connector 1 by the connecting block 7, at the moment, the sliding groove at the lower end of the connector 1 is mutually matched with the contact block of the contact base 2, the mutual positions are confirmed, the threaded rod 8 is driven to rotate by the wrench, the trapezoidal block 10 is driven to slide outwards by the threaded rod 8, after the trapezoidal block 10 slides outwards, the L-shaped block 9 loses extrusion force, is reset by the reset spring 11, the outer end is clamped into the connecting block 7 by the L-shaped lug, thereby can with connector 1 and connecting block 7 spacing fixed each other.

Finally, it should be noted that: 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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a piano keyboard apron connector which characterized in that: including connector (1), connector (1) side is equipped with threaded rod (8) that are used for the transmission effect, connector (1) upper end is connected with key (6) through connecting block (7), the key (6) other end is connected with base (4) through the pivot, connector (1) lower extreme is connected with contact seat (2) department contact piece through the spout, contact seat (2) contact piece is connected with contact seat (2), contact seat (2) lower extreme is connected with base (4) through transfer line (3), base (4) department is equipped with transmission handle (5) that are used for the transmission effect.

2. A piano key cover connector according to claim 1, wherein: threaded rod (8) close with connector (1) soon through the screw thread and are connected, and the other end is spacing to be registrated and is connected in trapezoidal piece (10) department, trapezoidal piece (10) are the trapezoidal form, and both ends and L-shaped piece (9) contact.

3. A piano key cover connector according to claim 2, wherein: l-shaped block (9) is L-shaped, one end of L-shaped block (9) is connected with the rectangular groove at the lower end of connecting block (7) through L-shaped convex block, the other end is limited in the rectangular groove in connector (1) in a sliding way, and is connected with connector (1) through reset spring (11).

4. A piano key cover connector according to claim 1, wherein: the lower end of the transmission handle (5) is fixedly connected with a transmission gear mechanism (13), the transmission gear mechanism (13) is meshed with a second rack (15) through a first rack (14), and the second rack (15) is meshed with the transmission rod (3) through a tooth groove.

5. A piano key cover connector according to claim 1, wherein: circular grooves are formed in two ends of the contact block of the contact base (2), and buffer springs (12) are fixedly connected in the circular grooves of the contact base (2).

6. A piano key cover connector according to claim 1, wherein: the lower end of the connecting block (7) is fixedly provided with a rectangular block, the rectangular block of the connecting block (7) is provided with a rectangular groove used for being connected with the limiting block of the L-shaped block (9), and the upper end of the connecting block (7) is fixedly connected with the keys (6).

7. A piano key cover connector according to claim 1, wherein: one end of the transmission rod (3) is arranged as a transmission tooth groove, and the other end of the transmission rod is arranged as a thread groove for screwing and fixing connection.