Vertical piano top cover supporting rod structure

An upright piano and rod structure technology, applied in the field of musical instruments, can solve the problems of high risk factor, improperly supported top cover falling, etc., and achieve the effects of reducing processing cost, simple structure and easy processing.

Active Publication Date: 2019-03-08
WEIFANG ENG VOCATIONAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the manual struts of upright pianos need two hands to operate during the process of lifting and retracting, that is, one hand supports the top cover, and the other hand realizes the operation of the struts, because the top cover has a certain weight. , when operated alone, it is easy to have the danger of improper support and the top cover will fall, the risk factor is high, and it needs to be improved urgently

Method used

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  • Vertical piano top cover supporting rod structure
  • Vertical piano top cover supporting rod structure
  • Vertical piano top cover supporting rod structure

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] see as Figure 1-Figure 5 As shown, the technical solution adopted in this specific embodiment is: it includes an outer rod 1, an inner rod 2, a positioning column 3, a fixed seat 4, a screw joint 5, a double-ended screw rod 6, and a nut 7; the inside of the outer rod 1 The inner rod 2 is movably inserted, the lower end of the outer rod 1 and the upper end of the inner rod 2 are provided with a through hole 8, and the lower end of the outer rod 1 and the upper end of the inner rod 2 are inserted in two symmetrically arranged rotary joints. 5, two symmetrically arranged rotary pieces 5 are welded and fixed on the fixed seat 4, the double-ended screw 6 is inserted in the rotary piece 5 and the through hole 8, and the two ends of the double-ended screw 6 Nuts 7 are screwed respectively; the upper side wall of the outer rod 1 is provided with a socket 1-1, and the ...

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Abstract

The invention discloses a vertical piano top cover supporting rod structure, and relates to the technical field of musical instruments. An inner rod is movably inserted into an outer rod, through holes are formed in the lower end of the outer rod and the upper end of the inner rod, the lower end of the outer rod and the upper end of the inner rod are inserted between two symmetric rotary connection sheets, the two symmetric rotary connection sheets are fixed onto a fixing seat, double-thread screws are inserted into the rotary connection sheets and the through holes, nuts are screwed at two ends of each double-thread screw, an insertion hole is formed in the side wall of the upper end of the outer rod, a plurality of slots are formed in the side wall of the inner rod from top to bottom, and the inner end of a positioning column penetrates the insertion hole and then is inserted into one slot. The structure is simple, easy to machine, convenient to operate, higher in safety and strongerin practicability, power consumption of an electric push rod and oil leakage of a hydraulic push rod are avoided, machining cost is reduced, and a top cover is conveniently supported by a user.

Description

technical field [0001] The invention relates to the technical field of musical instruments, in particular to an upright piano top cover strut structure. Background technique [0002] A piano is a keyboard instrument in which the keys pull the hammers to strike the strings. A grand piano is a type of piano used for large performances or professionals. The used grand piano of the concert is a colossus in the musical instrument, has 9 feet long, and the heaviest can reach 600 kilograms. Upright pianos are found in many families today. It is family-style and very convenient. People regard it as a tool for entertainment. When friends get together and someone at home learns the piano, they all use upright pianos. The grand piano is more used for performances and for formal public occasions. [0003] At present, the manual struts of upright pianos need two hands to operate during the process of lifting and retracting, that is, one hand supports the top cover, and the other hand...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10C3/16G10C3/00
CPCG10C3/00G10C3/161
Inventor 闫雨
Owner WEIFANG ENG VOCATIONAL COLLEGE
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