CN109448668B

CN109448668B - Upright piano top cap vaulting pole structure

Info

Publication number: CN109448668B
Application number: CN201811213970.4A
Authority: CN
Inventors: 闫雨
Original assignee: Weifang Engineering Vocational College
Current assignee: Weifang Engineering Vocational College
Priority date: 2018-09-30
Filing date: 2018-09-30
Publication date: 2021-10-22
Anticipated expiration: 2038-09-30
Also published as: CN109448668A

Abstract

The invention discloses a vertical piano top cover support rod structure, and relates to the technical field of musical instruments; an inner rod is movably inserted in the 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 the two symmetrically-arranged rotary connecting pieces, the two symmetrically-arranged rotary connecting pieces are fixed on the fixed seat, the double-head screw is inserted in the rotary connecting pieces and the through holes, and nuts are respectively screwed at two ends of the double-head screw; the lateral wall of the upper end of the outer rod is provided with a jack, the lateral wall of the inner rod is provided with a plurality of slots from top to bottom, and the inner end of the positioning column penetrates through the jack and then is inserted into the slots. The structure is simple, the processing is easy, the power consumption of the electric push rod and the oil leakage situation of the hydraulic push rod can be avoided, the processing cost is reduced, the supporting of a user to the top cover is facilitated, the operation is convenient, the safety is higher, and the practicability is stronger.

Description

Upright piano top cap vaulting pole structure

Technical Field

The invention relates to the technical field of musical instruments, in particular to a top cover support rod structure of an upright piano.

Background

A piano is a keyboard instrument, and hammers are pulled with keys to strike strings. Grand pianos are a type of piano used for large shows or professionals. Grand pianos used at concerts are a large natural mass of instruments, 9 feet long and the heaviest can reach 600 kg. Upright pianos are available in many households today, are home-based and convenient, and are used as a tool for entertainment by people. Friends meet, have the people at home to learn the piano, all adopt upright piano. Grand pianos are more used for performing and in formal public places.

At present, the manual stay bar of upright piano needs two hands to operate in the supporting and retracting process, namely one hand supports the top cover, the other hand realizes the operation of the stay bar, and because the top cover has certain weight, when operating alone, the danger of the improper top cover of support dropping exists easily, the danger coefficient is higher, and improvement is needed urgently.

Disclosure of Invention

The invention aims to overcome the defects and shortcomings of the prior art, and provides a vertical piano top cover support rod structure which is simple in structure, reasonable in design and convenient to use, is simple in structure and easy to machine, avoids power consumption of an electric push rod and oil leakage of a hydraulic push rod, reduces machining cost, facilitates the support of a top cover by a user, is convenient to operate, is higher in safety and is higher in practicability.

In order to achieve the purpose, the invention adopts the technical scheme that: the device comprises an outer rod, an inner rod, a positioning column, a fixed seat, a rotary connecting sheet, a double-end screw and a screw cap; an inner rod is movably inserted in the 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 the two symmetrically-arranged rotary connecting pieces, the two symmetrically-arranged rotary connecting pieces are fixed on the fixed seat, the double-head screw is inserted in the rotary connecting pieces and the through holes, and nuts are respectively screwed at two ends of the double-head screw; the lateral wall of the upper end of the outer rod is provided with a jack, the lateral wall of the inner rod is provided with a plurality of slots from top to bottom, and the inner end of the positioning column penetrates through the jack and then is inserted into the slots.

Furthermore, the two side walls of the inner rod are symmetrically provided with sliding grooves, and the inner wall of the outer rod is provided with guide rails which are matched and clamped with the sliding grooves.

Furthermore, the outer wall of the outer rod is provided with a first caulking groove, and the positioning column is movably arranged in the first caulking groove.

Further, the lower extreme of interior pole be connected with the silica gel piece, the external diameter of silica gel piece is greater than the internal diameter of outer pole, and the outer wall of silica gel piece is contradicted and is set up on the inner wall of outer pole.

Furthermore, the inner wall of the outer rod is arranged in a cone-shaped structure, the outer diameter of the silica gel block is equal to the inner diameter of the lower port of the cone-shaped structure, and the outer diameter of the inner rod is smaller than the inner diameter of the upper port of the cone-shaped structure.

Furthermore, the outer wall of the outer rod is provided with a screwing thread, and the first fixing ring is screwed with the screwing thread through the thread on the inner wall of the first fixing ring; the outer wall of the first guide fixing ring is sleeved with an LED lamp belt, a power line of the LED lamp belt is electrically connected with a battery embedded in a battery box on the side wall of the first guide fixing ring, and a control switch connected with the LED lamp belt is embedded and fixed on the first guide fixing ring.

Furthermore, the screwing thread is screwed with a second fixing ring, and the outer wall of the second fixing ring is provided with a plurality of second caulking grooves.

The working principle of the invention is as follows: the fixing seat at the upper end of the inner rod is fixed on the inner wall of a top cover of a piano through bolt connection, the fixing seat at the lower end of the outer rod is fixed on the inner side wall of a piano box through bolt connection, when the piano top cover is closed, the inner rod is completely inserted into the outer rod at the moment, the positioning is placed in a first caulking groove at the moment, when the top cover needs to be opened and is supported, a user only needs to open the top cover through two hands, when the top cover is opened to a required opening angle, the positioning column in the first caulking groove is taken out and is inserted into a slot with a corresponding angle after passing through a jack, and the positioning of the opening angle of the top cover can be realized at the moment because the end parts of the inner rod and the outer rod are both connected and fixed with the top cover and the piano box, so that the situation that the top end of the supporting rod does not correspond to a groove body at the bottom of the top cover, and the supporting rod is separated from the groove body to cause the falling of the top cover; the LED lamp strip is arranged outside the outer rod, so that the function of illumination can be achieved when parts in the piano cabinet are inspected, and a light source is not required to be additionally arranged; the piano uses the back for a long time, and moisture in the air can lead to the fact the damage to the inside spare part of piano, leads to tone quality to change, simultaneously because the material of piano spare part is injectd, consequently need regularly place the composition of some dry deinsectization to piano inside every year, No. two fixed rings that set up in the outside of outer pole, provide the locating position for the composition that needs place promptly.

After adopting the structure, the invention has the beneficial effects that: the vertical piano top cover support rod structure has the advantages of simple structure, easiness in processing, no power consumption of the electric push rod and no oil leakage of the hydraulic push rod, processing cost reduction, convenience in supporting the top cover by a user, convenience in operation, higher safety, higher practicability, simple structure, reasonableness in setting, low manufacturing cost and the like.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is an exploded view of the present invention.

Fig. 2 is a sectional view taken along line a-a in fig. 1.

Fig. 3 is a sectional view taken along line B-B in fig. 1.

Fig. 4 is a sectional view showing the structure of the outer rod and the inner rod according to the embodiment.

FIG. 5 is a schematic diagram of a contracted state of an embodiment.

Description of reference numerals:

the LED lamp comprises an outer rod 1, a jack 1-1, a first caulking groove 1-2, a screwing thread 1-3, an inner rod 2, a slot 2-1, a sliding groove 2-2, a positioning column 3, a fixing seat 4, a screwing sheet 5, a double-end screw 6, a nut 7, a through hole 8, a silica gel block 9, a guide rail 10, a first fixing ring 11, a battery box 12, a control switch 13, an LED lamp strip 14, a second fixing ring 15 and a second caulking groove 15-1.

Detailed Description

The invention will be further described with reference to the accompanying drawings.

Referring to fig. 1 to 5, the technical solution adopted by the present embodiment is: the device comprises an outer rod 1, an inner rod 2, a positioning column 3, a fixed seat 4, a rotary connecting piece 5, a double-end screw 6 and a screw cap 7; an inner rod 2 is movably inserted into the outer rod 1, through holes 8 are formed in the lower end of the outer rod 1 and the upper end of the inner rod 2, the lower end of the outer rod 1 and the upper end of the inner rod 2 are inserted between two symmetrically-arranged rotary connecting pieces 5, the two symmetrically-arranged rotary connecting pieces 5 are welded and fixed on a fixed seat 4, a double-head screw 6 is inserted into the rotary connecting pieces 5 and the through holes 8, and nuts 7 are respectively screwed at two ends of the double-head screw 6; the side wall of the upper end of the outer rod 1 is provided with a jack 1-1, the side wall of the inner rod 2 is provided with a plurality of slots 2-1 from top to bottom, and the inner end of the positioning column 3 penetrates through the jack 1-1 and then is inserted into the slot 2-1.

Furthermore, the two side walls of the inner rod 2 are symmetrically provided with sliding grooves 2-2, the inner wall of the outer rod 1 is integrally formed with a guide rail 10 which is matched and clamped with the sliding grooves 2-2, and the guide rail plays a role in guiding when the inner rod 2 moves.

Furthermore, the outer wall of the outer rod 1 is provided with a first caulking groove 1-2, and the positioning column 3 is movably arranged in the first caulking groove 1-2.

Further, the lower extreme gluing of interior pole 2 have silica gel block 9, the external diameter of silica gel block 9 is greater than the internal diameter of outer pole 1, and the outer wall conflict setting of silica gel block 9 is on the inner wall of outer pole 1, shifts up to play certain limiting displacement to interior pole 2, avoids exerting oneself too violently to follow the inside landing of outer pole 1 with interior pole 2.

Further, the inner wall of the outer rod 1 is arranged in a cone-shaped structure, the outer diameter of the silica gel block 9 is equal to the inner diameter of the lower port of the cone-shaped structure, the outer diameter of the inner rod 2 is smaller than the inner diameter of the upper port of the cone-shaped structure, when the inner rod 2 slides upwards, the silica gel block 9 is pressed more and more tightly, a user judges the general position of the inner rod 2 in the outer rod 1 according to the force required by turning up the top cover, the inner rod 2 is prevented from being separated from the outer rod 1, and the inner rod 2 can be limited to a certain degree.

Furthermore, the outer wall of the outer rod 1 is provided with screwing threads 1-3, and the first fixing ring 11 is screwed with the screwing threads 1-3 through the threads on the inner wall of the first fixing ring; the outer wall cover of a fixed ring 11 be equipped with LED lamp area 14, the power cord of LED lamp area 14 is connected with the battery electricity of inlaying in battery case 12 of establishing at a fixed ring 11 lateral wall, and inlays the control switch 13 that is connected with LED lamp area 14 and establishes and fix on a fixed ring 11.

Furthermore, the screwing thread 1-3 is screwed with a second fixing ring 15, the outer wall of the second fixing ring 15 is provided with a plurality of second caulking grooves 15-1, and a plurality of drying agents or disinsection agents are embedded in the second caulking grooves 15-1, so that a certain dehumidifying and disinsecting effect can be achieved.

Furthermore, the inner rod 2, the outer rod 1, the positioning column 3, the fixing seat 4, the rotary connecting piece 5, the first fixing ring 11 and the second fixing ring 12 are all made of stainless steel materials.

The working principle of the specific embodiment is as follows: the fixed seat 4 at the upper end of the inner rod 2 is fixed on the inner wall of the top cover of the piano by bolts, the fixed seat 4 at the lower end of the outer rod 1 is fixed on the inner side wall of the piano case by bolts, when the top cover of the piano is closed, the inner rod 2 is completely inserted into the outer rod 1, the positioning is placed in the first caulking groove 1-2, when the top cover needs to be opened, when the top cover is supported, a user only needs to open the top cover with two hands, when the top cover is opened to a required opening angle, the positioning column 3 in the first caulking groove 1-2 is taken out and passes through the jack 1-1, inserted into the slots 2-1 with corresponding angles, the positioning of the opening angle of the top cover can be realized at the moment, because the end parts of the inner rod 2 and the outer rod 1 are fixedly connected with the top cover and the piano cabinet, therefore, the situation that the top end of the supporting rod does not correspond to the groove body at the bottom of the top cover, so that the supporting rod is separated from the groove body and the top cover falls off is avoided; the LED lamp strip 14 is arranged outside the outer rod 1, so that the piano box can play a role in illumination when parts in the piano box are inspected, and no additional light source is needed; the piano uses the back for a long time, and moisture in the air can cause the damage to the inside spare part of piano, leads to tone quality to change, simultaneously because the material of piano spare part is injectd, consequently need regularly place the composition of some dry deinsectization to the piano inside every year, No. two fixed ring 15 that the outside of outer pole 1 set up, provide the locating position for the composition that needs place promptly.

After adopting above-mentioned structure, this embodiment beneficial effect does: the upright piano top cover support rod structure has the advantages of simple structure, easiness in processing, no power consumption of the electric push rod and no oil leakage of the hydraulic push rod, processing cost reduction, convenience in supporting the top cover by a user, convenience in operation, higher safety, higher practicability, simple structure, reasonableness in setting, low manufacturing cost and the like.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides an upright piano top cap vaulting pole structure which characterized in that: the device comprises an outer rod (1), an inner rod (2), a positioning column (3), a fixed seat (4), a rotary connecting piece (5), a double-end screw (6) and a screw cap (7); an inner rod (2) is movably inserted in the outer rod (1), through holes (8) are formed in the lower end of the outer rod (1) and the upper end of the inner rod (2), the lower end of the outer rod (1) and the upper end of the inner rod (2) are inserted between two symmetrically-arranged rotary connection pieces (5), the two symmetrically-arranged rotary connection pieces (5) are fixed on a fixed seat (4), a double-head screw (6) is inserted in the rotary connection pieces (5) and the through holes (8), and nuts (7) are respectively screwed at two ends of the double-head screw (6); the side wall of the upper end of the outer rod (1) is provided with a jack (1-1), the side wall of the inner rod (2) is provided with a plurality of slots (2-1) from top to bottom, and the inner end of the positioning column (3) penetrates through the jack (1-1) and then is inserted into the slots (2-1); the two side walls of the inner rod (2) are symmetrically provided with sliding chutes (2-2), and the inner wall of the outer rod (1) is provided with a guide rail (10) which is matched and clamped with the sliding chutes (2-2); the outer wall of the outer rod (1) is provided with a first caulking groove (1-2), and the positioning column (3) is movably arranged in the first caulking groove (1-2); the lower end of the inner rod (2) is connected with a silica gel block (9); the inner wall of the outer rod (1) is arranged in a cone-shaped structure, the outer diameter of the silica gel block (9) is equal to the inner diameter of the lower port of the cone-shaped structure, and the outer diameter of the inner rod (2) is smaller than the inner diameter of the upper port of the cone-shaped structure; the outer wall of the outer rod (1) is provided with a screwing thread (1-3), and the first fixing ring (11) is screwed with the screwing thread (1-3) through the thread on the inner wall; the outer wall of the first guide fixing ring (11) is sleeved with an LED lamp strip (14), a power line of the LED lamp strip (14) is electrically connected with a battery in a battery box (12) embedded in the side wall of the first guide fixing ring (11), and a control switch (13) connected with the LED lamp strip (14) is embedded and fixed on the first guide fixing ring (11); the second fixing ring (15) is screwed on the screwing thread (1-3), and a plurality of second caulking grooves (15-1) are formed in the outer wall of the second fixing ring (15); the fixing seat (4) at the upper end of the inner rod (2) is fixed on the inner wall of a top cover of a piano by utilizing bolt connection, the fixing seat (4) at the lower end of the outer rod (1) is fixed on the inner side wall of a piano case by utilizing bolt connection, when the piano top cover is covered, the inner rod (2) is completely inserted in the outer rod (1), the positioning column is placed in a first caulking groove (1-2), when the top cover needs to be opened and is supported, a user only needs to open the top cover by two hands, when the top cover is opened to a required opening angle, the positioning column (3) in the first caulking groove (1-2) is taken out, the positioning column penetrates through the insertion hole (1-1) and is inserted into the insertion groove (2-1) with a corresponding angle, the positioning of the opening angle of the top cover can be realized at the moment, and the end parts of the inner rod (2) and the outer rod (1) are respectively connected and fixed with the top cover and the piano case, therefore, the situation that the top end of the supporting rod does not correspond to the groove body at the bottom of the top cover, so that the supporting rod is separated from the groove body and the top cover falls off is avoided; the LED lamp strip (14) is arranged outside the outer rod (1), so that the piano box can play a role in illumination when parts in the piano box are inspected, and no light source is required to be additionally arranged; the piano uses the back for a long time, and moisture in the air can cause the damage to the inside spare part of piano, leads to tone quality to change, simultaneously because the material of piano spare part is injectd, consequently need regularly place the composition of some dry deinsectization to the piano inside every year, No. two fixed ring (15) of outside setting of outer pole (1), provide the locating position for the composition that needs place promptly.