Piano soundboard for grand piano

Abstract

The utility model relates to the technical field of grand piano soundboards, and discloses a piano soundboard for a grand piano, which comprises a mounting frame, a soundboard frame is clamped in the mounting frame, a soundboard body is fixedly mounted on the inner wall of the soundboard frame, and two groups of stress springs are fixedly mounted on the inner wall of the soundboard frame. Movable plates are fixedly mounted at the ends, away from each other, of the two sets of stress springs, inserting blocks which are arranged at equal intervals are fixedly mounted on the side faces, away from the stress springs, of the movable plates, limiting grooves which are arranged at equal intervals are formed in the inner wall of the mounting frame, and each inserting block is clamped into the corresponding limiting groove; two pull rods are fixedly mounted on the side surfaces, close to each other, of the two movable plates; according to the soundboard, the inserting blocks can be pulled out of the limiting grooves through the pull rods, so that the soundboard frame can be pulled out of the mounting frame, the soundboard body can be conveniently cleaned or replaced, the labor intensity of workers is reduced, and meanwhile the cleaning or replacing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grand piano soundboards, in particular to a piano soundboard used for a grand piano. Background Art

[0002] The piano soundboard is one of the most important parts in the sound production of the piano. The sound produced by the action striking the strings is transmitted to the listener's ears after resonance through the soundboard. When the piano hammers hit the strings, the vibration of the strings causes the soundboard to resonate and produce piano sounds.

[0003] The utility model with the existing authorization application number CN211699673U discloses a piano soundboard structure, including a soundboard, a rib, a soundboard frame and a back frame, wherein the bass mute angle of the soundboard is disconnected from the soundboard body, the disconnected mute angle is a soundboard split, the disconnection point between the soundboard split and the soundboard body is arc-shaped, the thickness of the lower part of the soundboard body gradually increases from bass to treble, the soundboard frame includes a main soundboard frame and a split soundboard frame, the main soundboard frame is composed of a left frame, a right frame, an upper frame and an arc frame A, The left side, right side, top side and arcuate side A of the soundboard body are respectively bonded to the left frame, right frame, upper frame and arcuate side A of the main soundboard frame; the split soundboard frame consists of two straight frames and one arcuate side B; the straight side and arcuate side B of the split soundboard are respectively bonded to the straight frame and arcuate side B of the split soundboard frame; the arcuate side B of the split soundboard frame is bonded to the arcuate side A of the main soundboard frame; the ribs are bonded to one side of the soundboard body, and the ribs include transverse ribs and multiple oblique ribs.

[0004] By adopting the above technical solution, the bass mute angle of the soundboard is disconnected in an arc shape, forming a circular loop with the unequal thickness structure at the bottom of the soundboard, so that the syllable transition is natural and smooth, and the tone is mellow. However, the above technical solution is not convenient for cleaning or replacing the soundboard, which makes the process of cleaning and replacing the soundboard very complicated and the steps are very cumbersome, thereby increasing the labor intensity of the staff and reducing the efficiency of cleaning or replacement, making it less practical. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a piano soundboard for a grand piano, which is convenient for cleaning or replacing the soundboard, making the process of cleaning or replacing the soundboard more concise and the steps simpler, thereby reducing the labor intensity of the staff while increasing the efficiency of cleaning or replacement, making it more practical.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a piano soundboard for a grand piano, comprising a mounting frame, a soundboard frame being clamped inside the mounting frame, a soundboard body being fixedly mounted on the inner wall of the soundboard frame, two groups of force springs being fixedly mounted on the inner wall of the soundboard frame, movable plates being fixedly mounted on the ends of the two groups of force springs away from each other, plug blocks being fixedly mounted on the side of each movable plate away from the force spring at equal distances, limiting grooves being arranged at equal distances on the inner wall of the mounting frame, each plug block being clamped inside the limiting groove, and two pull rods being fixedly mounted on the side of the two movable plates close to each other.

[0009] Preferably, a handle is fixedly mounted on a side surface of each group of pull rods that are close to each other, and a non-slip pad is fixedly mounted on the inner wall of each handle.

[0010] Preferably, two T-shaped blocks are fixedly mounted on both sides of the soundboard frame, and each of the T-shaped blocks is snap-fitted into the interior of the mounting frame.

[0011] Preferably, a fixing frame is fixedly mounted on the bottom surface of the soundboard body, a first rib is fixedly mounted on the inner wall of the fixing frame, two second ribs are fixedly mounted on the inner wall of the fixing frame, and a third rib is fixedly mounted on the inner wall of the fixing frame.

[0012] Preferably, a first back column is fixedly mounted on the inner wall of the installation frame, and a second back column is fixedly mounted on the inner wall of the installation frame.

[0013] Preferably, two connection blocks are fixedly mounted on both side surfaces of the installation frame, and a threaded hole is formed on the upper surface of each of the connection blocks.

[0014] Preferably, the inner wall of each threaded hole is threadedly connected with a limiting bolt, and the top of each limiting bolt is fixedly mounted with a nut.

[0015] Preferably, the inner wall of the soundboard frame is provided with four slide grooves, and the inner wall of each group of the slide grooves is slidably connected to the outer surface of the handle.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a piano soundboard for a grand piano, which has the following beneficial effects: the piano soundboard for a grand piano can be clamped to the soundboard frame by providing a mounting frame, and the elastic force provided by the force spring can squeeze the movable plate, so that the movable plate can drive the plug block to directly enter the limit groove, thereby limiting and fixing the soundboard body, and the plug block can be pulled out of the limit groove by a pull rod, so that the soundboard frame can be pulled out of the mounting frame, thereby facilitating the cleaning or replacement of the soundboard body, making the process of cleaning or replacing the soundboard body more concise and the steps simpler, thereby reducing the labor intensity of the staff while increasing the efficiency of cleaning or replacement, achieving a highly practical effect. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 This is a schematic diagram of the structure of the soundboard frame of the utility model in a cutaway three-dimensional view;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the first back column of the utility model when viewed from above;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the fixing frame of the utility model when viewed from above.

[0022] In the figure: 1. Installation frame; 2. Soundboard frame; 3. Soundboard body; 4. Force spring; 5. Movable plate; 6. Insert block; 7. Limiting groove; 8. Pull rod; 9. Handle; 10. Anti-slip cushion; 11. T-shaped block; 12. Fixed frame; 13. First rib; 14. Second rib; 15. Third rib; 16. First back column; 17. Second back column; 18. Connecting block; 19. Threaded hole; 20. Limiting bolt; 21. Nut; 22. Slide groove. DETAILED DESCRIPTION

[0023] In order to better understand the purpose, structure and function of the utility model, the piano soundboard for a grand piano of the utility model is further described in detail below with reference to the accompanying drawings.

[0024] See also Figure 1-4The utility model discloses a piano soundboard for a grand piano, comprising a mounting frame 1, a soundboard frame 2 is clamped inside the mounting frame 1, a soundboard body 3 is fixedly mounted on the inner wall of the soundboard frame 2, two groups of force springs 4 are fixedly mounted on the inner wall of the soundboard frame 2, movable plates 5 are fixedly mounted on the ends of the two groups of force springs 4 away from each other, and plug blocks 6 arranged at equal distances are fixedly mounted on the side of each movable plate 5 away from the force spring 4, limiting grooves 7 arranged at equal distances are opened on the inner wall of the mounting frame 1, each plug block 6 is clamped inside the limiting groove 7, and two pull rods 8 are fixedly mounted on the sides of the two movable plates 5 close to each other.

[0025] A handle 9 is fixedly installed on the side of each group of pull rods 8 that are close to each other, and a non-slip pad 10 is fixedly installed on the inner wall of each handle 9. The handle 9 can facilitate people to pull the pull rod 8. The non-slip pad 10 can increase the friction between the handle 9 and the person's hand, thereby increasing the convenience of the device.

[0026] Two T-shaped blocks 11 are fixedly installed on both sides of the soundboard frame 2, and each T-shaped block 11 is snap-fitted into the interior of the mounting frame 1. The T-shaped blocks 11 can limit the position of the soundboard frame 2 during installation, thereby preventing the soundboard frame 2 from shifting and increasing the stability of the soundboard frame 2.

[0027] A fixing frame 12 is fixedly installed on the bottom surface of the soundboard body 3, a first rib 13 is fixedly installed on the inner wall of the fixing frame 12, two second ribs 14 are fixedly installed on the inner wall of the fixing frame 12, and a third rib 15 is fixedly installed on the inner wall of the fixing frame 12. The first rib 13, the second rib 14 and the third rib 15 can be limited and fixed by the fixing frame 12, so that the first rib 13, the second rib 14 and the third rib 15 transmit the vibration of the sound to the soundboard body 3, thereby increasing the practicality of the installation.

[0028] A first back column 16 is fixedly installed on the inner wall of the installation frame 1 , and a second back column 17 is fixedly installed on the inner wall of the installation frame 1 . The first back column 16 and the second back column 17 can support the installation frame 1 , making the installation frame 1 more stable and increasing the stability of the installation frame 1 .

[0029] Two connecting blocks 18 are fixedly installed on both sides of the installation frame 1. The upper surface of each connecting block 18 is provided with a threaded hole 19. The connecting blocks 18 are used to facilitate the connection of the installation frame 1, thereby facilitating the installation and disassembly of the installation frame 1, thereby increasing the convenience of installation and disassembly of the installation frame 1.

[0030] The inner wall of each threaded hole 19 is threadedly connected with a limiting bolt 20, and a nut 21 is fixedly installed on the top of each limiting bolt 20. The limiting bolt 20 can limit and fix the connecting block 18, thereby facilitating the installation of the installation frame 1, and further increasing the convenience of installation and disassembly of the installation frame 1.

[0031] The inner wall of the soundboard frame 2 is provided with four slide grooves 22, and the inner wall of each set of slide grooves 22 is slidably connected to the outer surface of the handle 9. The handle 9 can be limited by the slide grooves 22, so that it is convenient for people to hold the handle 9 to pull the soundboard frame 2 outward, prevent the handle 9 from shifting, and increase the stability of the handle 9.

[0032] The working principle of the utility model is as follows: firstly, the installation frame 1 is installed in the grand piano through the connecting block 18, the limiting bolt 20 can limit and fix the installation frame 1 to prevent the installation frame 1 from deflecting, the soundboard frame 2 can be clamped through the installation frame 1, and the elastic force provided by the force spring 4 can squeeze the movable plate 5, so that the movable plate 5 can drive the plug 6 to directly enter the limiting groove 7, so that the soundboard body 3 can be limited and fixed, and the staff can pull the pull rod 8 by holding the two grips 9 in each hand, so that the pull rod 8 can pull the plug 6 out of the limiting groove 7, and the anti-skid cushion 10 can increase the staff's hand The friction between the upper and lower parts and the handle 9 allows the soundboard frame 2 to be pulled out of the mounting frame 1, thereby facilitating the cleaning or replacement of the soundboard body 3, making the process of cleaning or replacing the soundboard body 3 more concise and the steps simpler, thereby reducing the labor intensity of the staff while increasing the efficiency of cleaning or replacement. The soundboard frame 2 can be limited by the T-shaped block 11 during installation to prevent the soundboard frame 2 from shifting when it is placed in the mounting frame 1. The first back column 16 and the second back column 17 can support the mounting frame 1, thereby making the mounting frame 1 more stable, making the piano soundboard for the grand piano more practical.

[0033] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A piano soundboard for a grand piano, comprising a mounting frame (1), characterized in that: The interior of the installation frame (1) is clamped with a soundboard frame (2), the inner wall of the soundboard frame (2) is fixedly mounted with a soundboard body (3), the inner wall of the soundboard frame (2) is fixedly mounted with two groups of force springs (4), the ends of the two groups of force springs (4) away from each other are fixedly mounted with movable plates (5), the side of each movable plate (5) away from the force spring (4) is fixedly mounted with equidistantly arranged plug blocks (6), the inner wall of the installation frame (1) is provided with equidistantly arranged limit grooves (7), each of the plug blocks (6) is clamped in the interior of the limit groove (7), and the sides of the two movable plates (5) close to each other are fixedly mounted with two pull rods (8).

2. A piano soundboard for a grand piano according to claim 1, characterized in that: A handle (9) is fixedly mounted on a side surface of each group of pull rods (8) that is close to each other, and an anti-skid cushion (10) is fixedly mounted on the inner wall of each handle (9).

3. A piano soundboard for a grand piano according to claim 1, characterized in that: Two T-shaped blocks (11) are fixedly mounted on both sides of the soundboard frame (2), and each of the T-shaped blocks (11) is snap-fitted into the interior of the mounting frame (1).

4. A piano soundboard for a grand piano according to claim 1, characterized in that: A fixing frame (12) is fixedly mounted on the bottom surface of the soundboard body (3), a first rib (13) is fixedly mounted on the inner wall of the fixing frame (12), two second ribs (14) are fixedly mounted on the inner wall of the fixing frame (12), and a third rib (15) is fixedly mounted on the inner wall of the fixing frame (12).

5. A piano soundboard for a grand piano according to claim 1, characterized in that: A first back column (16) is fixedly mounted on the inner wall of the installation frame (1), and a second back column (17) is fixedly mounted on the inner wall of the installation frame (1).

6. A piano soundboard for a grand piano according to claim 1, characterized in that: Two connection blocks (18) are fixedly mounted on both side surfaces of the installation frame (1), and a threaded hole (19) is provided on the upper surface of each connection block (18).

7. A piano soundboard for a grand piano according to claim 6, characterized in that: The inner wall of each threaded hole (19) is threadedly connected to a limiting bolt (20), and a nut (21) is fixedly mounted on the top of each limiting bolt (20).

8. A piano soundboard for a grand piano according to claim 2, characterized in that: The inner side wall of the soundboard frame (2) is provided with four slide grooves (22), and the inner wall of each group of the slide grooves (22) is slidably connected to the outer surface of the handle (9).

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