CN212967052U - Tone rate control mechanism for key-press sheng - Google Patents

Abstract

The utility model discloses a tone rate control mechanism for a key-press sheng, which comprises a plurality of tone rate control units with the same structure; the single voice control unit comprises a key button, a power member and a valve member, wherein one end of the power member is connected with the key button, and the other end of the power member is abutted against the valve member; the power component comprises a power arm, a fixed sleeve and a resistance arm which is in mirror symmetry with the power arm, the power arm is connected with a key button connecting rod, and the outer end part of the key button connecting rod is fixedly provided with a key button; the fixed sleeve is arranged on the supporting shaft; the valve member comprises a valve ejector rod, a return spring and a positioning sleeve; one end of the valve ejector rod is inserted into the gas distribution chamber, the other end of the valve ejector rod is provided with a U-shaped clamping seat, and the upper end part of the resistance arm is abutted against the U-shaped clamping seat; the locating sleeve is arranged on the side wall of the gas distribution chamber, and a pre-tightening screw is arranged on the locating sleeve. The utility model has the advantages of compact structure, easy adjustment, no blocking, good control of the temperament and the like.

Description

Tone rate control mechanism for key-press sheng

Technical Field

The utility model belongs to the technical field of sheng instrument, especially, relate to a tone rate control mechanism for button sheng, a reed pipe wind instrument.

Background

Sheng is the only acoustic musical instrument capable of playing and sounding in national musical instruments, has long history, quiet tone and rich harmony, and is an important playing musical instrument in national music and opera music. Most of the traditional sheng is seventeen reed, which is common, the finger is used to press the hole to control the gas to be sounded by the specific tube, with the development of the times, the sheng musical instrument develops twenty-four, twenty-six, twenty-seven reed, etc. from the original thirteen reed, and the type of sheng also presents various forms, such as sound-amplifying sheng, bass sheng, or row sheng with additional keys, buttons, etc.

The main structure of a wind pipe comprises a box, a plurality of keys and reed pipes, wherein the keys are arranged on the side surface of the box, the inside of the box is provided with a plurality of tone rate control mechanisms, each tone rate control mechanism can control the pressing elasticity of the keys and can correspondingly control the sounding states of different reed pipes when a user presses different keys; the existing temperament control mechanism mainly comprises a key button, a valve ejector rod connected with the key button and a return spring; when the structure is pressed in actual operation, the valve ejector rod is easy to be blocked due to the deviation of the stress direction of the finger; thereby affecting the performance effect; over time, the valve ejector pin is easy to wear, and the service life of the valve ejector pin is shortened.

However, although this kind of sheng is used for many years, because the number of keys of the sheng is large, when the user wants to adjust the pressing elasticity of each button or confirm the status of the key, he must first lay down the sheng to a fixed position and at the same time correspond to the corresponding relationship between the key on the top of the box and the control adjustment member to perform the subsequent adjustment action, so that the user must repeat the above actions before playing the key, which not only consumes much time, but also causes inconvenience and trouble in use, and furthermore, the conventional sheng has a large space to be improved.

Therefore, in order to solve the problems of the above-mentioned conventional structure, how to develop a more practical rhythm control mechanism.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model provides a temperament control mechanism which has compact structure, easy adjustment, no blockage and good temperament control,

the utility model discloses a tone rate control mechanism for a key-press sheng, which comprises a plurality of tone rate control units with the same structure, wherein the plurality of tone rate control units are arranged at one end of an air chamber in a crossed manner; each tone law control unit controls the tone law of one sheng seedling on the air chamber, the tone law control unit comprises a key button, a power member and a valve member, one end of the power member is connected with the key button, and the other end of the power member is abutted against the valve member; the power component comprises a power arm, a fixed sleeve and a resistance arm which is in mirror symmetry with the power arm, wherein the outer side of the power arm is connected with a key button connecting rod, and the outer end part of the key button connecting rod is fixedly provided with a key button; the fixed sleeve is arranged on a support shaft, the support shaft is fixedly arranged between an upper connecting plate and a lower connecting plate which are positioned at the end part of the air chamber, and the upper connecting plate and the lower connecting plate are fixedly connected with the air chamber; the valve member comprises a valve ejector rod, a return spring and a positioning sleeve; one end of the valve ejector rod is inserted into the gas distribution chamber, the other end of the valve ejector rod is provided with a U-shaped clamping seat, and the upper end part of the resistance arm is abutted against the U-shaped clamping seat; the locating sleeve is arranged on the side wall of the gas distribution chamber, and a pre-tightening screw is arranged on the locating sleeve.

According to the preferred technical scheme, the two ends of the upper connecting plate and the lower connecting plate are provided with the limiting frames, and the end part of the power arm of each single temperament control unit is positioned in the limiting frames.

Preferably, the key button is a cylindrical button type key button.

The utility model adopts the technical proposal to have the advantages and technical effects; the utility model realizes the force transmission through the design of the lever structure power component, compared with the traditional direct-coupled type, the pressing force is relatively reduced, the pressing force is not hard, and the hand feeling of the player is improved; in addition, a plurality of power components rotate around the same support shaft after being stressed, the consistency of a control structure of the temperament is further ensured, meanwhile, a resistance arm of each power component is connected with the valve ejector rod in a butt connection mode, the influence of the force direction is avoided, the valve ejector rod always moves linearly under the guiding action of the positioning sleeve, the phenomenon of jamming cannot occur, and in addition, the positioning sleeve is externally provided with a pre-tightening screw, so that a player can adjust the temperament according to actual convenience and the requirement of pronouncing is met.

Drawings

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

fig. 2 is a schematic diagram of the structure of the single temperament control unit.

In the figure, 1, a single temperament control unit; 1-1, a key button; 1-2, a power component; 1-20, a power arm; 1-21, fixing sleeves; 1-22, a resistance arm; 1-23, a key button connecting rod; 1-3, a valve member; 1-31, valve ejector pin; 1-32, a return spring; 1-33, a positioning sleeve; 1-34, U-shaped card seat; 1-35, pre-tightening screws; 1-4, supporting a shaft; 1-5, an upper connecting plate; 2. an air chamber; 3. a limiting frame.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 and 2, a tone law control mechanism for a key-press sheng includes a plurality of tone law control monomers 1 with the same structure, the plurality of tone law control monomers are arranged at one end of an air chamber 2 in a crossing manner, and because the number and arrangement of reeds cannot meet the installation requirement of the plurality of tone law control monomers 1, the space around the air chamber can be reasonably utilized according to the arrangement crossing of the reeds; each tone law control single body controls the tone law of one sheng seedling on the air chamber, the tone law control single body 1 comprises a key button 1-1, a power member 1-2 and a valve member 1-3, one end of the power member is connected with the key button, and the other end of the power member is abutted to the valve member; the power component 1-2 comprises a power arm 1-20, a fixed sleeve 1-21 and a resistance arm 1-22 which is in mirror symmetry with the power arm, wherein the outer side of the power arm is connected with a key button connecting rod 1-23, the outer end part of the key button connecting rod is fixedly provided with a key button 1-1, and the key button is a cylindrical button type key button; the fixing sleeve is arranged on a support shaft 1-4, the support shaft is fixedly arranged between an upper connecting plate 1-5 and a lower connecting plate which are positioned at the end part of the air chamber, and the upper connecting plate and the lower connecting plate are fixedly connected with the air chamber; the valve member 1-3 comprises a valve ejector rod 1-31, a return spring 1-32 and a positioning sleeve 1-33; one end of the valve ejector rod is inserted into the gas distribution chamber, the other end of the valve ejector rod is provided with a U-shaped clamping seat 1-34, and the upper end part of the resistance arm is abutted in the U-shaped clamping seat; the positioning sleeves 1-33 are arranged on the side wall of the gas distribution chamber, and pre-tightening screws 1-35 are arranged on the positioning sleeves.

According to the technical scheme, the limiting frames 3 are arranged at the two ends of the upper connecting plate and the lower connecting plate, the end part of each power arm of the single temperament control unit is located in each limiting frame, and the outer ends of the power arms are restrained by the limiting frames to prevent the power arms from reversely rotating.

According to the technical scheme, the power transmission is realized through the design of the power component of the lever structure, compared with the traditional direct-connected type, the pressing force is relatively reduced, the pressing force is not hard, and the hand feeling of a player is improved; in addition, a plurality of power components rotate around the same support shaft after being stressed, the consistency of a control structure of the temperament is further ensured, meanwhile, a resistance arm of each power component is connected with the valve ejector rod in a butt connection mode, the influence of the force direction is avoided, the valve ejector rod always moves linearly under the guiding action of the positioning sleeve, the phenomenon of jamming cannot occur, and in addition, the positioning sleeve is externally provided with a pre-tightening screw, so that a player can adjust the temperament according to actual convenience and the requirement of pronouncing is met.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (3)

1. A tone law control mechanism for a key-press Sheng comprises a plurality of tone law control monomers with the same structure, wherein the tone law control monomers are arranged at one end of an air chamber in a crossed manner; each tone law control unit controls the tone law of one sheng seedling on the air chamber, the tone law control unit comprises a key button, a power member and a valve member, one end of the power member is connected with the key button, and the other end of the power member is abutted against the valve member; the power component comprises a power arm, a fixed sleeve and a resistance arm which is in mirror symmetry with the power arm, wherein the outer side of the power arm is connected with a key button connecting rod, and the outer end part of the key button connecting rod is fixedly provided with a key button; the fixed sleeve is arranged on a support shaft, the support shaft is fixedly arranged between an upper connecting plate and a lower connecting plate which are positioned at the end part of the air chamber, and the upper connecting plate and the lower connecting plate are fixedly connected with the air chamber; the valve member comprises a valve ejector rod, a return spring and a positioning sleeve; one end of the valve ejector rod is inserted into the gas distribution chamber, the other end of the valve ejector rod is provided with a U-shaped clamping seat, and the upper end part of the resistance arm is abutted against the U-shaped clamping seat; the locating sleeve is arranged on the side wall of the gas distribution chamber, and a pre-tightening screw is arranged on the locating sleeve.

2. The tone-rhythm control mechanism for a push-button sheng, as claimed in claim 1, wherein: and limiting frames are arranged at two ends of the upper connecting plate and the lower connecting plate, and the end part of the power arm of each single temperament control unit is positioned in the limiting frames.

3. The tone-rhythm control mechanism for a push-button sheng, as claimed in claim 1, wherein: the key buttons are cylindrical button type key buttons.

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