CN209747107U

CN209747107U - Slow descending device for piano keyboard cover

Info

Publication number: CN209747107U
Application number: CN201920468966.6U
Authority: CN
Inventors: 刘长旭
Original assignee: Hunan Institute of Science and Technology
Current assignee: Hunan Institute of Science and Technology
Priority date: 2019-04-08
Filing date: 2019-04-08
Publication date: 2019-12-06
Anticipated expiration: 2029-04-08

Abstract

The utility model discloses a device slowly falls in piano keyboard lid, including the piano body, the upper end of piano body is rotated and is connected with the piano lid, the rectangle recess has been seted up to piano lid lower extreme, two bar-shaped pieces of fixedly connected with in the rectangle recess, the moving part has been cup jointed in the outside slip of bar-shaped piece, and sets up the dovetail groove that corresponds with the bar-shaped piece on the lateral wall of moving part, fixedly connected with U-shaped piece on the lateral wall of bar-shaped piece is kept away from to the moving part, and the notch internal rotation of U-shaped piece is connected with first bobbin, the one end sliding connection that U-shaped piece was kept away from to first bobbin has the slide bar, and the one end sliding connection that first bobbin was kept away from to. The utility model provides high buffering ability when piano lid rotates reduces the influence of outside punching press to the piano lid to avoid artificial operation to cause the piano lid to open too fast or too slowly, improve the security.

Description

slow descending device for piano keyboard cover

Technical Field

The utility model relates to a piano protection device technical field especially relates to a piano keyboard lid slowly falls device.

Background

Because the piano cover plate is bulky and generally heavy, the rapid descent of the piano cover plate is extremely likely to pinch fingers or damage the piano, especially for children learning the piano, which is dangerous.

Some piano keyboard lid slow descending devices have appeared on the market, there is the spring, also there is the hydraulic stem formula, but find some slow descending effect not ideal in using, some products are not enough to the holding power of keyboard lid, initial falling speed is very fast, some products are not good to the last stage control of whereabouts, contact force with the keyboard face is too big, simultaneously because structural defect, this type of product fragile, it is big to change the degree of difficulty, in addition, when need not using the piano, the piano lid still can be opened by irrelevant personnel, can cause the damage of piano keyboard, for this reason, we provide a piano keyboard lid slow descending device and solve the problem that above-mentioned provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a slow descending device for a piano keyboard cover, which aims to solve the defects existing in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

A slow descending device for a piano keyboard cover comprises a piano body, wherein the upper end of the piano body is rotatably connected with a piano cover, the lower end of the piano cover is provided with a rectangular groove, two strip-shaped blocks are fixedly connected in the rectangular groove, the outer side of each strip-shaped block is sleeved with a moving part in a sliding manner, the side wall of each moving part is provided with a trapezoidal groove corresponding to each strip-shaped block, the side wall of each moving part, which is far away from each strip-shaped block, is fixedly connected with a U-shaped part, the notch of each U-shaped part is rotatably connected with a first bobbin, one end, which is far away from each U-shaped part, of each first bobbin is connected with a sliding rod in a sliding manner, one end, which is far away from each first bobbin, of each sliding rod is connected with a second bobbin in a sliding manner, the side walls, which are opposite to each first bobbin and the second bobbin, are respectively provided with sliding grooves, and a lifting mechanism connected with the second bobbin is arranged in the piano body.

Preferably, the piano cover is correspondingly arranged on the upper side of the piano keyboard, and the width value of the piano cover is greater than that of the piano keyboard.

Preferably, two the bar piece sets up the left and right sides in the rectangle recess respectively, and the bar piece corresponds in the outside of piano keyboard.

Preferably, one end of the strip-shaped block, which is far away from the rectangular groove, is fixedly connected with a cross strip, and the cross strip is in sliding connection with the trapezoidal groove of the movable piece.

preferably, the lifting mechanism comprises an electric push rod fixedly connected in the piano body, the upper end of the electric push rod is connected with a mounting seat, and one end of the mounting seat, far away from the electric push rod, is fixedly connected with the lower end face of the second bobbin.

Preferably, the mounting seat is fixedly connected with the electric push rod through a plurality of bolts, and a control switch electrically connected with the electric push rod is arranged on the outer side of the piano body.

Compared with the prior art, the beneficial effects of the utility model are that:

1. Through two bar-shaped blocks of fixedly connected with in the rectangle recess at the piano lid to under moving part, U-shaped piece, first bobbin, slide bar, second bobbin and buffer spring's cooperation was used, improved the buffer capacity when the piano lid rotated, reduced the influence of outside punching press to the piano lid, in addition, fixedly connected with reinforcing plate on the lateral wall of piano lid improves the shock resistance of piano lid.

2. This practicality utilizes electric putter to realize the rotation of piano lid, and on the one hand, the turning to of realization piano lid that can be stable avoids artificial operation to cause the piano lid to open too fast or too slow to avoid children's manual opening piano lid, improve the security, on the other hand, under the state that does not use, irrelevant personnel can't open the piano lid, play the effect of protection to the piano keyboard.

drawings

Fig. 1 is a schematic structural view of a slow descending device for a piano keyboard lid of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

Fig. 3 is a schematic view of a local bottom view of a piano lid of a slow descending device for a piano keyboard lid of the present invention.

In the figure: the piano comprises a piano body 1, a piano cover 2, a bar block 3, a movable piece 4, a U-shaped piece 5, a first bobbin 6, a sliding rod 7, a second bobbin 8, a buffer spring 9, an electric push rod 10, a mounting seat 11 and a bolt 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a device slowly falls in piano keyboard lid, including piano body 1, the upper end of piano body 1 is rotated and is connected with piano lid 2, it is specific, piano lid 2 corresponds the upside that sets up at piano keyboard, and the width value of piano lid 2 is greater than piano keyboard's width value, the rectangle recess has been seted up to piano lid 2 lower extreme, two bar-shaped pieces 3 of fixedly connected with in the rectangle recess, two bar-shaped pieces 3 set up the left and right sides in the rectangle recess respectively, and bar-shaped piece 3 corresponds the outside at piano keyboard, can not cause the damage to piano keyboard, and fixedly connected with reinforcing plate on piano lid 2's the lateral wall, improve piano lid's shock resistance.

Wherein, the outer side of the bar-shaped block 3 is slidably sleeved with a movable part 4, the side wall of the movable part 4 is provided with a trapezoidal groove corresponding to the bar-shaped block 3, specifically, one end of the bar-shaped block 3 far away from the rectangular groove is fixedly connected with a cross bar, the cross bar is slidably connected with the trapezoidal groove of the movable part 4, so as to ensure stable sliding between the bar-shaped block 3 and the movable part 4, the side wall of the movable part 4 far away from the bar-shaped block 3 is fixedly connected with a U-shaped part 5, the notch of the U-shaped part 5 is rotatably connected with a first bobbin 6, one end of the first bobbin 6 far away from the U-shaped part 5 is slidably connected with a slide bar 7, one end of the slide bar 7 far away from the first bobbin 6 is slidably connected with a second bobbin 8, the side walls of the first bobbin 6 and the second bobbin 8 opposite to each other are respectively provided with a sliding groove corresponding to the slide bar 7, the outer side of the slide bar 7 is sleeved with a buffer, the buffering capacity of the piano cover 2 during rotation is improved, and the influence of external punching on the piano cover 2 is reduced.

Wherein, a lifting mechanism connected with the second bobbin 8 is arranged in the piano body 1, the lifting mechanism comprises an electric push rod 10 fixedly connected in the piano body 1, the upper end of the electric push rod 10 is connected with a mounting seat 11, one end of the mounting seat 11 far away from the electric push rod is fixedly connected with the lower end surface of the second bobbin 8, in particular, the mounting seat 11 is fixedly connected with the electric push rod 10 by a plurality of bolts 12, the outer side of the piano body 1 is provided with a control switch electrically connected with the electric push rod 10, the control process is prior art and will not be described herein, the electric push rod 10 is used to realize the rotation of the piano lid, on one hand, the steering of the piano lid 2 can be stably realized, and the piano lid 2 is prevented from being opened too fast or too slow due to manual operation, on the other hand, in the unused state, irrelevant personnel can not open piano lid 2, play the effect of protection to the piano keyboard.

The utility model discloses when using, open control switch, make electric putter 10 work, and then electric putter 10 promotes the upward movement of second bobbin 8, and at moving part 4, U-shaped piece 5, first bobbin 6, slide bar 7 and buffer spring 9's transmission down, make the rotation that piano lid 2 can be stable, avoid artificial operation to cause piano lid 2 too fast or too slow opening, in addition, under the state that does not use, irrelevant personnel can't directly open piano lid 2 with the hand, play the effect of protection to the piano keyboard.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A slow descending device for a piano keyboard cover comprises a piano body (1) and is characterized in that the upper end of the piano body (1) is rotatably connected with a piano cover (2), the lower end of the piano cover (2) is provided with a rectangular groove, two strip-shaped blocks (3) are fixedly connected in the rectangular groove, a moving part (4) is sleeved on the outer side of each strip-shaped block (3) in a sliding mode, a trapezoidal groove corresponding to each strip-shaped block (3) is formed in the side wall of each moving part (4), the side wall, far away from each strip-shaped block (3), of each moving part (4) is fixedly connected with a U-shaped part (5), a first bobbin (6) is rotatably connected to the notch of each U-shaped part (5), one end, far away from each U-shaped part (5), of each first bobbin (6) is slidably connected with a sliding rod (7), and one end, far away from each first bobbin (6), of, the piano comprises a piano body (1) and is characterized in that sliding chutes corresponding to sliding rods (7) are respectively formed in opposite side walls of the first bobbin (6) and the second bobbin (8), buffer springs (9) are sleeved on the outer sides of the sliding rods (7), two ends of each buffer spring (9) are fixedly connected with the side walls of the first bobbin (6) and the second bobbin (8), and lifting mechanisms connected with the second bobbin (8) are arranged in the piano body (1).

2. The piano keyboard cover slow-descending device according to claim 1, wherein the piano cover (2) is correspondingly arranged on the upper side of the piano keyboard, and the width of the piano cover (2) is larger than that of the piano keyboard.

3. The descent control device for the piano keyboard lid according to claim 1, wherein the two bar-shaped blocks (3) are respectively disposed at the left and right sides in the rectangular groove, and the bar-shaped blocks (3) correspond to the outer sides of the piano keyboard.

4. The slow descending device of the piano keyboard lid of claim 1, wherein a cross bar is fixedly connected to one end of the bar-shaped block (3) far away from the rectangular groove, and the cross bar is slidably connected with the trapezoidal groove of the movable member (4).

5. The slow descending device for the piano keyboard lid according to claim 1, wherein the lifting mechanism comprises an electric push rod (10) fixedly connected in the piano body (1), the upper end of the electric push rod (10) is connected with a mounting seat (11), and one end of the mounting seat (11) far away from the electric push rod is fixedly connected with the lower end face of the second bobbin (8).

6. The descent control device for the piano keyboard lid according to claim 5, wherein the mounting seat (11) is fixedly connected with the electric push rod (10) through a plurality of bolts (12), and a control switch electrically connected with the electric push rod (10) is arranged on the outer side of the piano body (1).