Vertical piano rear key cover fixing structure

Abstract

The utility model relates to the field of vertical pianos, and discloses a vertical piano rear key cover fixing structure which comprises a rear key cover body and a side plate, a hinge is arranged on the outer surface of the rear key cover body, a fixing frame is fixedly installed at the bottom of the rear key cover body, a first magnetic plate is fixedly connected to the inner top wall of the fixing frame, and a second magnetic plate is fixedly connected to the inner top wall of the fixing frame. A second magnetic plate is movably connected to the inner wall of the fixing frame, a connecting rope is fixedly installed at the bottom of the second magnetic plate, a first magnetic block is connected to one end of the connecting rope, a clamping groove is formed in one side of the side plate, and a second magnetic block is fixedly installed on the inner wall of the clamping groove. According to the utility model, by utilizing the attraction force between the first magnetic plate and the second magnetic plate and between the second magnetic block and the first magnetic block, the stability of the insertion of the first magnetic block is ensured, the stability of the movable connection between the rear key cover body and the side plate is further ensured, on the contrary, the first magnetic block can be conveniently taken out from the clamping groove, and the rear key cover body can be conveniently and rapidly disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of upright pianos, in particular to a rear key cover fixing structure of an upright piano. Background Art

[0002] An upright piano is a tool for entertainment, and the back key cover is an important component of the upright piano. The back key cover is generally hinged to the key cover and detachably installed on the piano side panel. Under normal circumstances, the stability of the back key cover needs to be ensured. Therefore, the existing back key cover fixing structure of the upright piano has been continuously innovated and developed. Therefore, it can be seen that the current back key cover fixing structure of the upright piano basically meets people's needs, but some problems still exist.

[0003] For example, the patent document with the announcement number CN220651621 U discloses a fixing structure for the back key cover of an upright piano, which is provided with "a back key cover and two side panels located at both ends of the back key cover, both ends of the back key cover are detachably mounted on the two side panels by a fastening assembly; the fastening assembly includes a handle that vertically passes through the back key cover and is slidably connected thereto, and a limit plug that is slidably arranged in the horizontal direction, the limit plug is inserted into the limit groove provided on the side panel through an elastic member, and the limit plug can be pulled out of the limit groove by pulling up the handle. In the present utility model, the handle and the limit plug supported by the elastic member are connected together by a connecting rope. The locking state between the back key cover and the side panel can be released by manually pulling up the handle, and then the back key cover can be quickly lifted up and removed by directly using the handle. Moreover, since there is no obstruction above the back key cover, the staff has sufficient space to perform the above operations, which is conducive to the rapid disassembly and assembly of the back key cover."

[0004] However, when the above device is actually used, the limit plug is inserted into the limit groove by the elastic force of the elastic member. However, the elastic force of the elastic member decreases after frequent use, making it difficult to effectively insert the limit plug into the limit groove under normal conditions, thereby affecting the stability of the movable connection between the rear key cover and the upright piano body. In addition, the connecting ropes are easily entangled with each other on the guide wheel, affecting the pulling of the connecting ropes and further affecting the removal of the rear key cover. Therefore, a fixing structure for the rear key cover of an upright piano is urgently needed to solve the above problems. Utility Model Content

[0005] The purpose of the present invention is to provide a fixing structure for a rear key cover of an upright piano, so as to solve the problem in the background art that the movable connection between the rear key cover and the upright piano body is not stable during use.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a rear key cover fixing structure for an upright piano, comprising a rear key cover body and a side panel, wherein a hinge is provided on the outer surface of the rear key cover body, and a fixing frame is fixedly installed on the bottom of the rear key cover body;

[0007] A first magnetic plate, the first magnetic plate is fixedly connected to the inner top wall of the fixed frame, the inner wall of the fixed frame is movably connected to the second magnetic plate, and the second magnetic plate is located above the first magnetic plate, a connecting rope is fixedly installed on the bottom of the second magnetic plate, one end of the connecting rope is connected to the first magnetic block, a snap-in groove is opened on one side of the side panel, and the second magnetic block is fixedly installed on the inner wall of the snap-in groove.

[0008] Preferably, a spring damper is fixedly mounted on the inner bottom wall of the fixed frame, and the top of the spring damper is fixedly connected to the bottom of the second magnetic plate, and a handle is fixedly mounted on the top of the second magnetic plate.

[0009] Preferably, a groove is provided on the top of the rear key cover body, and the handle is located inside the groove.

[0010] Preferably, a partition is fixedly mounted on the inner bottom wall of the fixing frame, and the partition is located on the side of the spring damper.

[0011] Preferably, one side of the partition is rotatably connected to a guide wheel, and the connecting rope is overlapped on the outer surface of the guide wheel.

[0012] Preferably, a limit plate is fixedly mounted on the inner side wall of the fixed frame, and the limit plate is located on the side of the first magnetic block.

[0013] Preferably, a rubber sleeve is provided on the inner wall of the groove, and the rubber sleeve overlaps the outer surface of the handle.

[0014] Preferably, the first magnetic plate is in an O-shaped plate shape, and the spring damper is connected to the inner wall of the first magnetic plate through.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The utility model can stabilize the second magnetic plate in the fixed frame through the attraction between the first magnetic plate and the second magnetic plate, and can stabilize the first magnetic block in the clamping groove through the attraction between the second magnetic block and the first magnetic block, and the length of the connecting rope connecting the second magnetic plate and the first magnetic block is fixed, thereby ensuring the stability of the insertion of the first magnetic block, and then ensuring the stability of the movable connection between the rear key cover body and the side panel, which is beneficial to the fixation of the rear key cover body, and the operator can remove the first magnetic block from the clamping groove through the second magnetic plate and the connecting rope by lifting the handle, so that it is away from the side panel, which is convenient for quickly disassembling the rear key cover body and convenient for the user to open the rear key cover body for use.

[0017] 2. The utility model uses a spring damper to pull the second magnetic plate, causing it to slowly move to the surface of the first magnetic plate in the fixed frame. At this time, the spring damper plays a buffering role, thereby preventing the rear key cover body from bouncing up and down due to bumps during transportation, causing hard collisions between the key cover body and the surface of the piano body and causing damage. In addition, the elastic force of the spring damper improves the stability of the connection between the rear key cover body and the piano body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the rear key cover body of the present utility model;

[0020] Figure 3 This is a schematic diagram of the side panel structure of the present utility model;

[0021] Figure 4 This is a schematic diagram of the fixed frame structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the first magnetic plate structure of the present utility model.

[0023] In the figure: 1. Rear key cover body; 2. Side panel; 3. Hinge; 4. Fixed frame; 5. First magnetic plate; 6. Second magnetic plate; 7. Connecting rope; 8. First magnetic block; 9. Snap-in groove; 10. Second magnetic block; 11. Spring damper; 12. Handle; 13. Groove; 14. Partition; 15. Guide wheel; 16. Limit plate; 17. Rubber sleeve. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1 and Figure 2 、 Figure 3 , an embodiment provided by the utility model:

[0026] A rear key cover fixing structure for an upright piano comprises a rear key cover body 1 and a side panel 2, wherein a hinge 3 is provided on the outer surface of the rear key cover body 1, a fixing frame 4 is fixedly installed on the bottom of the rear key cover body 1, a first magnetic plate 5 is fixedly connected to the inner top wall of the fixing frame 4, a second magnetic plate 6 is movably connected to the inner wall of the fixing frame 4, and the second magnetic plate 6 is located above the first magnetic plate 5, a connecting rope 7 is fixedly installed on the bottom of the second magnetic plate 6, one end of the connecting rope 7 is connected to the first magnetic block 8, a clamping groove 9 is opened on one side of the side panel 2, a second magnetic block 10 is fixedly installed on the inner wall of the clamping groove 9, a handle 12 is fixedly installed on the top of the second magnetic plate 6, a guide wheel 15 is rotatably connected to one side of the partition 14, and the connecting rope 7 is overlapped on the outer surface of the guide wheel 15, a limit plate 16 is fixedly installed on the inner side wall of the fixing frame 4, and the limit plate 16 is located on the side of the first magnetic block 8;

[0027] When using the device, the first magnetic block 8 is inserted into the snap-in slot 9. The attraction between the first magnetic block 8 and the second magnetic block 10 is used to ensure the stability of the insertion of the first magnetic block 8, thereby effectively fixing the rear key cover body 1 to the side panel 2 of the upright piano through the first magnetic block 8.

[0028] The operator can grasp the handle 12 to lift it, and then the handle 12 drives the second magnetic plate 6 to move upward, and then the second magnetic plate 6 drives the two first magnetic blocks 8 to move toward each other through the connecting rope 7, so that it moves away from the side plate 2 until it is close to the limit plate 16. At this time, the rear key cover body 1 and the side plate 2 are no longer movably connected together, which is convenient for disassembling the rear key cover body 1. In the above process, the guide wheel 15 guides the connecting rope 7 to ensure the smooth pulling process of the operator. On the contrary, when installing the rear key cover body 1, the attraction of the first magnetic plate 5 to the second magnetic plate 6 and the attraction of the second magnetic block 10 to the first magnetic block 8 can be used to make the second magnetic plate 6 and the first magnetic block 8 quickly inserted into the fixing frame 4 and the clamping slot 9 respectively, and the insertion of the first magnetic block 8 connects the rear key cover body 1 and the side plate 2 movably together. After the installation of the key cover body 1 is completed, the mutual attraction between the first magnetic plate 5 and the second magnetic plate 6 and the first magnetic block 8 and the second magnetic block 10 ensures the stability of the movably connected rear key cover body 1 and the side plate 2.

[0029] Furthermore, a groove 13 is formed on the top of the rear key cover body 1, and the handle 12 is located inside the groove 13. A rubber sleeve 17 is provided on the inner wall of the groove 13, and the rubber sleeve 17 overlaps the outer surface of the handle 12.

[0030] The provision of the rubber sleeve 17 ensures the flatness of the upper surface of the rear key cover body 1 . When removing the handle 12 , the operator can press down the rubber sleeve 17 and place the hand inside the groove 13 to facilitate removal of the handle 12 .

[0031] See also Figure 2 and Figure 4、 Figure 5 , an embodiment provided by the utility model:

[0032] A spring damper 11 is fixedly mounted on the inner bottom wall of the fixed frame 4, and the top of the spring damper 11 is fixedly connected to the bottom of the second magnetic plate 6. The first magnetic plate 5 is in an O-shaped plate shape, and the spring damper 11 is connected to the inner wall of the first magnetic plate 5.

[0033] When transporting an upright piano, if the transport vehicle is bumpy and the upright piano is subjected to shock, if the rear key cover body 1 shakes up and down, the spring damper 11 will pull the second magnetic plate 6 to the surface of the first magnetic plate 5 in the fixed frame 4 under the action of its own elastic force, avoiding a hard collision between the rear key cover body 1 and the surface of the piano body. In addition, the elastic force of the spring damper 11 and the attraction between the first magnetic plate 5 and the second magnetic plate 6 and the first magnetic block 8 and the second magnetic block 10 improve the stability of the connection between the rear key cover body 1 and the piano body. The O-shaped design of the first magnetic plate 5 ensures the smooth movement of the spring damper 11 while reasonably utilizing the space inside the fixed frame 4.

[0034] Furthermore, a partition 14 is fixedly mounted on the inner bottom wall of the fixed frame 4 , and the partition 14 is located on the side of the spring damper 11 ; the space inside the fixed frame 4 is divided by the partition 14 to support the guide wheel 15 .

[0035] Working principle: When using the device, under the action of the attraction between the first magnetic plate 5 and the second magnetic plate 6 and the second magnetic block 10 and the first magnetic block 8, the second magnetic plate 6 and the first magnetic block 8 are quickly inserted into the fixed frame 4 and the clamping slot 9 respectively, and the insertion of the first magnetic block 8 connects the rear key cover body 1 and the side plate 2 together, and the mutual attraction between the first magnetic plate 5 and the second magnetic plate 6 and the first magnetic block 8 and the second magnetic block 10 ensures the stability of the movable connection between the rear key cover body 1 and the side plate 2. Conversely, the operator lifts the handle 12 to bring up the second magnetic plate 6, and then drives the connecting rope 7 along the guide wheel 15 The outer surface of the rear key cover body 1 is taken out from the inside of the fixed frame 4, and the connecting ropes 7 on both sides drive the two first magnetic blocks 8 to move towards each other, so that they are away from the side panels 2, so as to facilitate the quick removal of the rear key cover body 1. In addition, during the transportation of the upright piano, the rear key cover body 1 may shake up and down. At this time, the spring damper 11 will pull the second magnetic plate 6 to the surface of the first magnetic plate 5 in the fixed frame 4 and play a buffering role, thereby avoiding the phenomenon of hard collision between the surface of the rear key cover body 1 and the piano body. Moreover, under the action of the elastic force of the spring damper 11, the stability of the connection between the rear key cover body 1 and the piano body is improved.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A rear key cover fixing structure for an upright piano, comprising a rear key cover body (1) and a side plate (2), characterized in that: The outer surface of the rear key cover body (1) is provided with a hinge (3), and the bottom of the rear key cover body (1) is fixedly mounted with a fixing frame (4); A first magnetic plate (5) is fixedly connected to the inner top wall of the fixed frame (4); the inner wall of the fixed frame (4) is movably connected to a second magnetic plate (6), and the second magnetic plate (6) is located above the first magnetic plate (5); a connecting rope (7) is fixedly installed at the bottom of the second magnetic plate (6); one end of the connecting rope (7) is connected to the first magnetic block (8); a snap-in groove (9) is provided on one side of the side plate (2); and a second magnetic block (10) is fixedly installed on the inner wall of the snap-in groove (9).

2. The upright piano rear key cover fixing structure according to claim 1, characterized in that: A spring damper (11) is fixedly mounted on the inner bottom wall of the fixed frame (4), and the top of the spring damper (11) is fixedly connected to the bottom of the second magnetic plate (6), and a handle (12) is fixedly mounted on the top of the second magnetic plate (6).

3. The upright piano rear key cover fixing structure according to claim 1, characterized in that: A groove (13) is provided on the top of the rear key cover body (1), and the handle (12) is located inside the groove (13).

4. The upright piano rear key cover fixing structure according to claim 1, characterized in that: A partition plate (14) is fixedly mounted on the inner bottom wall of the fixed frame (4), and the partition plate (14) is located on the side of the spring damper (11).

5. The upright piano rear key cover fixing structure according to claim 4, characterized in that: One side of the partition (14) is rotatably connected to a guide wheel (15), and the connecting rope (7) is overlapped on the outer surface of the guide wheel (15).

6. The upright piano rear key cover fixing structure according to claim 1, characterized in that: A limiting plate (16) is fixedly mounted on the inner side wall of the fixed frame (4), and the limiting plate (16) is located on the side of the first magnetic block (8).

7. The upright piano rear key cover fixing structure according to claim 3, characterized in that: The inner wall of the groove (13) is provided with a rubber sleeve (17), and the rubber sleeve (17) is overlapped with the outer surface of the handle (12).

8. The upright piano rear key cover fixing structure according to claim 1, characterized in that: The first magnetic plate (5) is in the shape of an O-shaped plate, and the spring damper (11) is connected to the inner wall of the first magnetic plate (5).

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