CN209747107U - Slow down device for piano keyboard cover - Google Patents

Abstract

The utility model discloses a piano keyboard cover slow down device, which comprises a piano body, 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, and the rectangular groove is fixedly connected with a Two bar-shaped blocks, the outer side of the bar-shaped block is slidingly sleeved with movable parts, and the side walls of the movable parts are provided with trapezoidal grooves corresponding to the bar-shaped blocks, and the movable parts are away from the side walls of the bar-shaped blocks. A U-shaped piece is fixedly connected, and the notch of the U-shaped piece is rotatably connected with a first bobbin tube, and the end of the first bobbin tube away from the U-shaped piece is slidably connected with a slide bar, and the end of the slide bar is far away from the first bobbin tube The sliding connection has a second bobbin. The utility model improves the cushioning capacity when the piano cover rotates, reduces the impact of external stamping on the piano cover, and avoids the artificial operation causing the piano cover to open too fast or too slow, thereby improving safety.

Description

Slow down device for piano keyboard cover

technical field

The utility model relates to the technical field of piano protection devices, in particular to a slow-down device for a piano keyboard cover.

Background technique

Because the cover plate of the piano is bulky and generally relatively heavy, it is very easy to pinch fingers or damage the piano when the piano cover plate falls quickly, especially for children who are learning to play the piano.

There are some piano keyboard cover slow-down devices on the market, including spring type and hydraulic rod type, but in the application, it is found that the slow-down effect of some products is not ideal. Some products do not have enough support for the keyboard cover, and the initial falling speed Faster, some products do not have good control over the final stage of falling, and the contact force with the keyboard surface is too large. At the same time, due to structural defects, this type of product is easy to damage and difficult to replace. In addition, when the piano is not required to be used, The piano cover can still be opened by irrelevant personnel, which may cause damage to the piano keyboard. For this reason, we propose a piano keyboard cover slow-down device to solve the above-mentioned problems.

Utility model content

The purpose of this utility model is to solve the shortcoming existing in the prior art, and propose a kind of piano key cover slow down device.

In order to achieve the above object, the utility model adopts the following technical solutions:

A piano keyboard cover slow-down device, comprising a piano body, the upper end of the piano body is rotatably connected to a piano cover, and a rectangular groove is opened at the lower end of the piano cover, and two strip blocks are fixedly connected in the rectangular groove , the outer side of the strip block is slidingly sleeved with movable parts, and the side wall of the movable part is provided with a trapezoidal groove corresponding to the bar block, and the side wall of the movable part away from the bar block is fixedly connected with a U-shaped part, and the first bobbin tube is rotatably connected in the notch of the U-shaped piece, and the end of the first bobbin tube away from the U-shaped piece is slidably connected with a slide bar, and the end of the slide bar away from the first bobbin tube is slidably connected with a second bobbin tube. The bobbin tube, the opposite side walls of the first bobbin tube and the second bobbin tube are respectively provided with chutes corresponding to the slide bar, and the outer side of the slide bar is sleeved with a buffer spring, and the two ends of the buffer spring are respectively connected to the The side walls of the first bobbin and the second bobbin are fixedly connected, and a lifting mechanism connected with the second bobbin is arranged inside the piano body.

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

Preferably, the two strip blocks are respectively arranged on the left and right sides of the rectangular groove, and the strip blocks correspond to the outside of the piano keyboard.

Preferably, the end of the strip block away from the rectangular groove is fixedly connected with a horizontal bar, and the horizontal bar is slidably connected with the trapezoidal groove of the movable part.

Preferably, the lifting mechanism includes an electric push rod fixedly connected in the piano body, the upper end of the electric push rod is connected with a mount, and the end of the mount away from the electric push rod is fixed to the lower end surface of the second tube connect.

Preferably, the mounting base and the electric push rod are fixedly connected by a plurality of bolts, and a control switch electrically connected to the electric push rod is provided on the outside of the piano body.

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

1. There are two strip blocks fixedly connected in the rectangular groove of the piano cover, and under the cooperation of movable parts, U-shaped parts, first bobbin, sliding rod, second bobbin and buffer spring, the The cushioning capacity of the piano cover when it is rotated is improved, and the impact of external stamping on the piano cover is reduced. In addition, a reinforcing plate is fixedly connected to the outer wall of the piano cover to improve the impact resistance of the piano cover.

2. This utility uses the electric push rod to realize the rotation of the piano cover. On the one hand, it can realize the steering of the piano cover stably, avoiding the opening of the piano cover too fast or too slow due to human operation, and avoiding children from manually opening the piano cover. To improve safety, on the other hand, in the state of non-use, unrelated personnel cannot open the piano cover, which has a protective effect on the piano keyboard.

Description of drawings

Fig. 1 is the structural representation of a kind of piano keyboard cover slow down device that the utility model proposes;

Fig. 2 is a partial enlarged view of place A in Fig. 1;

Fig. 3 is a schematic bottom view of a partial piano cover of a piano keyboard cover slow-down device proposed by the utility model.

In the figure: 1 piano body, 2 piano cover, 3 strip blocks, 4 movable parts, 5 U-shaped parts, 6 first bobbin, 7 slide rod, 8 second bobbin, 9 buffer spring, 10 electric push rod, 11 mounts, 12 bolts.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

Referring to Figures 1-3, a piano keyboard cover slow-down device includes a piano body 1, and the upper end of the piano body 1 is rotatably connected with a piano cover 2. Specifically, the piano cover 2 is correspondingly arranged on the upper side of the piano keyboard, and the piano cover The width value of 2 is greater than the width value of the piano keyboard. The lower end of the piano cover 2 is provided with a rectangular groove, and two strip blocks 3 are fixedly connected in the rectangular groove. side, and the strip block 3 corresponds to the outside of the piano keyboard, which will not cause damage to the piano keyboard, and the outer wall of the piano cover 2 is fixedly connected with a reinforcing plate to improve the impact resistance of the piano cover.

Wherein, the outer side of the bar block 3 is slidingly sleeved with the movable part 4, and the side wall of the movable part 4 is provided with a trapezoidal groove corresponding to the bar block 3, specifically, the end of the bar block 3 away from the rectangular groove is fixed A horizontal bar is connected, and the horizontal bar is slidably connected with the trapezoidal groove of the movable part 4 to ensure stable sliding between the bar block 3 and the movable part 4. The side wall of the movable part 4 away from the bar block 3 is fixedly connected with a U-shaped 5, and the first bobbin 6 is rotatably connected in the notch of the U-shaped piece 5, and the end of the first bobbin 6 away from the U-shaped piece 5 is slidably connected with a slide bar 7, and the slide bar 7 is far away from the end of the first bobbin 6. One end is slidably connected with the second bobbin 8, and the opposite side walls of the first bobbin 6 and the second bobbin 8 are respectively provided with chute corresponding to the slide bar 7, and the outer side of the slide bar 7 is sleeved with a buffer spring 9, And the two ends of the buffer spring 9 are fixedly connected with the side walls of the first bobbin 6 and the second bobbin 8 respectively, which improves the buffering capacity of the piano cover 2 when it rotates, and reduces the impact of external stamping on the piano cover 2 .

Wherein, the piano body 1 is provided with a lifting mechanism connected with the second bobbin 8, and the lifting mechanism includes an electric push rod 10 fixedly connected in the piano body 1, and the upper end of the electric push rod 10 is connected with a mount 11, and the mount 11 One end away from the electric push rod is fixedly connected to the lower end surface of the second bobbin 8. Specifically, a plurality of bolts 12 are fixedly connected between the mounting seat 11 and the electric push rod 10. 10 electrically connected control switches, the control process is a prior art, and will not be repeated here. The electric push rod 10 is used to realize the rotation of the piano cover. On the one hand, the steering of the piano cover 2 can be realized stably, avoiding artificial The operation causes the piano cover 2 to be opened too quickly or too slowly. On the other hand, in the state of non-use, unrelated personnel cannot open the piano cover 2, which plays a protective effect on the piano keyboard.

When the utility model is in use, turn on the control switch to make the electric push rod 10 work, and then the electric push rod 10 pushes the second bobbin 8 to move upward, and the movable part 4, the U-shaped part 5, the first bobbin 6, the sliding Under the transmission of the rod 7 and the buffer spring 9, the piano cover 2 can be rotated stably, avoiding the artificial operation that causes the piano cover 2 to open too fast or too slowly. Directly open the piano cover 2 to play a protective effect on the piano keyboard.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (6)

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).