Piano key cleaning device preventing dust from falling into a gap
By using a rotating friction cylinder and friction disc to generate electrostatic adsorption of dust, the problem of dust falling back into the gaps between piano keys in existing technologies is solved, achieving a highly efficient and uniform cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI POLYTECHNIC INST
- Filing Date
- 2025-05-23
- Publication Date
- 2026-05-29
AI Technical Summary
Existing piano key cleaning devices often result in dust falling back into the gaps between the keys during the cleaning process, increasing the difficulty of cleaning.
The rotating friction cylinder and friction disc generate static electricity through friction with the dust baffle and adsorption plate, which adsorbs dust from the piano key surface and the surrounding air. The inner side of the dust baffle is embedded with copper mesh to disperse static electricity, making the static electricity distribution uniform and enhancing the dust adsorption effect.
It achieves comprehensive and efficient cleaning of piano keys, prevents dust from falling into crevices, and improves cleaning efficiency and uniformity.
Smart Images
Figure CN224294163U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of piano key cleaning technology, specifically a piano key cleaning device that prevents dust from falling into crevices. Background Technology
[0002] As an elegant and precious musical instrument, the cleaning and maintenance of the piano keys is of paramount importance. During daily use, dust easily accumulates on the keys.
[0003] Chinese Patent Publication No. CN221675034U discloses a piano key cleaning device. Multiple mounting plates can slide and adjust their spacing on a damping guide rail to adapt to the position of the gaps between multiple piano keys. By holding two handles and inserting the bristles on the mounting plates into the gaps between the keys and moving them back and forth, cleaning can be performed. During the back and forth movement, dust can be adsorbed between the gaps between the keys through the dust-adhesive pad. When the connecting plate is rotated 90 degrees so that the scraper contacts the surface of the keys, the solidified stains on the surface of the keys can be scraped off.
[0004] However, in this technical solution, dust easily falls back into the gaps between the keys during the cleaning process, increasing the difficulty of cleaning. Therefore, a piano key cleaning device that prevents dust from falling into the gaps is proposed to solve the above problem. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a piano key cleaning device that prevents dust from falling into the gaps. It has the advantages of efficient cleaning and preventing dust from falling into the gaps of the piano keys, thus solving the problem that dust can easily fall back into the gaps of the piano keys during cleaning in existing solutions.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A piano key cleaning device to prevent dust from falling into crevices includes a housing, a connecting plate at the bottom of the housing, dust baffles fixedly connected to the left and right sides of the bottom of the connecting plate, and a cleaning component for cleaning on the inner side of the housing.
[0008] The cleaning assembly includes a motor fixedly connected to the inside of the housing. The output shaft of the motor is fixedly connected to a first connecting shaft. A first fixed shaft is provided inside the first connecting shaft. A friction cylinder is fixedly connected to the bottom end of the first fixed shaft. A second fixed shaft is fixedly connected to the bottom of the friction cylinder. A second connecting shaft is provided outside the second fixed shaft. A friction disc is fixedly connected to the bottom end of the second connecting shaft. An adsorption plate is fixedly connected between the opposite sides of the two dust baffles.
[0009] Furthermore, connecting feet are fixedly connected to the four corners of the bottom of the housing, and a handle is fixedly connected to the top of the housing.
[0010] Furthermore, the four corners of the top of the connecting plate are respectively provided with slots that are compatible with the connecting feet, and the inner bottom wall of each slot is fixedly connected with a magnetic piece that is compatible with the connecting feet.
[0011] Furthermore, the bottom of the first connecting shaft is provided with a first connecting groove that is adapted to the first fixed shaft, and the top of the second connecting shaft is provided with a second connecting groove that is adapted to the second fixed shaft. The surfaces of the first fixed shaft and the second fixed shaft are both provided with anti-slip textures.
[0012] Furthermore, a swivel opening adapted to the first connecting shaft is provided at the bottom of the inner side of the housing, and a through opening adapted to the first connecting shaft is provided on the inner side of the connecting plate, and the swivel opening and the through opening are of the same size and connected to each other.
[0013] Furthermore, the friction cylinder is located between the opposite sides of the left and right dust baffles, with the left part of the friction cylinder in contact with the left dust baffle and the right part of the friction cylinder in contact with the right dust baffle.
[0014] Furthermore, a copper mesh is embedded in the inner side of the dust baffle, and the bottom of the friction disc is in contact with the adsorption plate.
[0015] Furthermore, both the dust baffle and the adsorption plate are made of polytetrafluoroethylene (PTFE), the friction cylinder is made of nitrile rubber, and the friction disc is made of nitrile rubber.
[0016] Compared with the prior art, this utility model provides a piano key cleaning device that prevents dust from falling into the crevices, and has the following beneficial effects:
[0017] This piano key cleaning device, designed to prevent dust from falling into crevices, utilizes a rotating friction cylinder and friction disc. These components generate static electricity through friction with a dust baffle and an adsorption plate, respectively. This effectively adsorbs dust from the key surface and surrounding air. The friction between the friction cylinder and the dust baffle causes static charge to accumulate on the baffle surface, attracting dust particles from the air. Simultaneously, the copper mesh embedded inside the dust baffle disperses static electricity, ensuring a uniform distribution of static electricity on the baffle surface. This further improves the efficiency and uniformity of dust adsorption, enhancing the effect of preventing dust from falling into the key crevices. The friction between the friction disc and the adsorption plate generates static electricity, which then adsorbs dust from the keys, thus achieving comprehensive and efficient cleaning of the piano keys. Attached Figure Description
[0018] Figure 1 This is a cross-sectional view of the structure of this utility model;
[0019] Figure 2 This is a front view of the structure of this utility model;
[0020] Figure 3This is a perspective view of the shell, the first connecting shaft, and the connecting foot in the structure of this utility model.
[0021] In the diagram: 1. Housing; 2. Connecting plate; 3. Dust baffle; 4. Motor; 5. First connecting shaft; 6. First fixed shaft; 7. Friction cylinder; 8. Second fixed shaft; 9. Second connecting shaft; 10. Friction disc; 11. Adsorption plate; 12. Connecting foot; 13. Copper mesh. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1 to 3 The piano key cleaning device for preventing dust from falling into the gaps in this embodiment includes a housing 1, a connecting plate 2 at the bottom of the housing 1, dust baffles 3 fixedly connected to the left and right sides of the bottom of the connecting plate 2, and a cleaning component for cleaning on the inner side of the housing 1.
[0024] Please see Figure 1 In this embodiment, the cleaning component includes a motor 4 fixedly connected to the inside of the housing 1. The output shaft of the motor 4 is fixedly connected to a first connecting shaft 5. A first fixed shaft 6 is provided inside the first connecting shaft 5. A friction cylinder 7 is fixedly connected to the bottom end of the first fixed shaft 6. A second fixed shaft 8 is fixedly connected to the bottom of the friction cylinder 7. A second connecting shaft 9 is provided outside the second fixed shaft 8. A friction disc 10 is fixedly connected to the bottom end of the second connecting shaft 9. An adsorption plate 11 is fixedly connected between the opposite sides of the two dust baffles 3.
[0025] Specifically, connecting feet 12 are fixedly connected to the four corners of the bottom of the housing 1, a handle is fixedly connected to the top of the housing 1, and slots adapted to the connecting feet 12 are opened at the four corners of the top of the connecting plate 2, and magnetic plates adapted to the connecting feet 12 are fixedly connected to the inner bottom wall of each slot.
[0026] It should be noted that this design enables quick assembly and disassembly of the housing 1 and the connecting plate 2. On the other hand, the magnetic clasp ensures the stability of the connection. When the cleaning device is working normally, the magnetic clasp can provide sufficient magnetic force to tightly connect the housing 1 and the connecting plate 2, preventing them from separating due to vibration or other external forces, and ensuring the smooth progress of the cleaning work.
[0027] Specifically, the bottom of the first connecting shaft 5 is provided with a first connecting groove that matches the first fixed shaft 6, and the top of the second connecting shaft 9 is provided with a second connecting groove that matches the second fixed shaft 8. The surfaces of the first fixed shaft 6 and the second fixed shaft 8 are both provided with anti-slip textures.
[0028] It should be noted that the anti-slip texture further enhances the reliability of the connection, preventing relative sliding between the first fixed shaft 6 and the first connecting shaft 5, and between the second fixed shaft 8 and the second connecting shaft 9, when rotating at high speed or subjected to external impact.
[0029] Specifically, the bottom of the inner side of the housing 1 is provided with a swivel that is compatible with the first connecting shaft 5, and the inner side of the connecting plate 2 is provided with a through-hole that is compatible with the first connecting shaft 5. The swivel and the through-hole are the same size and connected to each other.
[0030] Specifically, the friction cylinder 7 is located between the opposite sides of the left and right dust baffles 3, with the left part of the friction cylinder 7 in contact with the left dust baffle 3 and the right part of the friction cylinder 7 in contact with the right dust baffle 3.
[0031] Specifically, a copper mesh 13 is embedded in the inner side of the dust baffle 3, and the bottom of the friction disc 10 is in contact with the adsorption plate 11.
[0032] It should be noted that the copper mesh 13 can not only further enhance the structural strength of the dust baffle 3, making it better able to withstand external forces and not easily deformed, but also play a role in dispersing static electricity. When the dust baffle 3 generates static electricity due to friction, the copper mesh 13 can evenly distribute the static electricity across the entire surface of the dust baffle 3, avoiding excessively strong or weak local static electricity, thereby improving the efficiency and uniformity of dust adsorption.
[0033] Specifically, the dust baffle 3 and the adsorption plate 11 are both polytetrafluoroethylene plates, the friction cylinder 7 is a nitrile rubber cylinder, and the friction disc 10 is a nitrile rubber disc.
[0034] It should be noted that polytetrafluoroethylene (PTFE) has excellent insulation properties and is prone to generating static electricity. This allows the dust baffle 3 and the adsorption plate 11 to quickly accumulate static electricity when rubbing against other components, thereby effectively adsorbing dust. Nitrile rubber, on the other hand, has moderate hardness, wear resistance, and a high coefficient of friction. The moderate hardness ensures that the friction cylinder 7 and the friction disc 10 can provide appropriate pressure when in contact with the dust baffle 3 and the adsorption plate 11, so that neither excessive pressure will damage the components nor insufficient pressure will affect the friction effect.
[0035] In addition, the arrangement of the first connecting shaft 5, the first fixed shaft 6, the second connecting shaft 9, and the second fixed shaft 8 makes it easy to disassemble the friction cylinder 7 and the friction disc 10. Simply disconnect the connection between the housing 1 and the connecting plate 2, thereby releasing the restriction on the first fixed shaft 6, the second connecting shaft 9, and the second fixed shaft 8.
[0036] The working principle of the above embodiments is as follows:
[0037] First, insert the dust baffle 3 into the gap of the piano keys, and connect the connecting plate 2 to the connecting foot 12 at the bottom of the housing 1 through the slot at its top. Then, use a magnetic sheet to firmly connect the housing 1 and the connecting plate 2. At this time, the first connecting shaft 5 passes through the turnout at the bottom of the inner side of the housing 1 and the through-hole on the inner side of the connecting plate 2, and the first fixed shaft 6 is inserted into the first connecting groove of the first connecting shaft 5, thereby realizing the connection between the friction cylinder 7 and the power source. At the same time, the second fixed shaft 8 is fixedly connected to the bottom of the friction cylinder 7 and connected to the second connecting shaft 9, thereby realizing the connection between the friction disc 10 and the power source.
[0038] When the motor 4 is started, its output shaft drives the first connecting shaft 5 to rotate, which in turn drives the friction cylinder 7 to rotate via the first fixed shaft 6. Simultaneously, the power is further transmitted to the second connecting shaft 9 via the second fixed shaft 8 and the second connecting shaft 9, causing the second connecting shaft 9 to drive the friction disc 10 to rotate. The rotating friction cylinder 7 fully contacts and rubs against the dust baffles 3 on the left and right sides. Since the dust baffles 3 are made of polytetrafluoroethylene, they easily lose electrons during the friction process, thus accumulating static charge on the surface of the dust baffles 3. These static charges can attract dust particles in the surrounding air, causing the dust to adhere to the dust baffles 3. At the same time, the rotating friction disc 10 contacts and rubs against the adsorption plate 11, causing the adsorption plate 11 to also generate static electricity, adsorbing the dust on the piano keys.
[0039] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that can achieve its beneficial effects can be implemented.
[0040] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A piano key cleaning device to prevent dust from falling into crevices, comprising a housing (1), characterized in that: The bottom of the housing (1) is provided with a connecting plate (2), and dust baffles (3) are fixedly connected to the left and right sides of the bottom of the connecting plate (2). The inner side of the housing (1) is provided with a cleaning component for cleaning. The cleaning assembly includes a motor (4) fixedly connected to the inside of the housing (1). The output shaft of the motor (4) is fixedly connected to a first connecting shaft (5). A first fixed shaft (6) is provided inside the first connecting shaft (5). A friction cylinder (7) is fixedly connected to the bottom end of the first fixed shaft (6). A second fixed shaft (8) is fixedly connected to the bottom of the friction cylinder (7). A second connecting shaft (9) is provided outside the second fixed shaft (8). A friction disc (10) is fixedly connected to the bottom end of the second connecting shaft (9). An adsorption plate (11) is fixedly connected between the opposite sides of the two dust baffles (3).
2. The piano key cleaning device for preventing dust from falling into crevices according to claim 1, characterized in that: Connecting feet (12) are fixedly connected to the four corners of the bottom of the housing (1), and a handle is fixedly connected to the top of the housing (1).
3. The piano key cleaning device for preventing dust from falling into crevices according to claim 1, characterized in that: The four corners of the top of the connecting plate (2) are respectively provided with slots that are compatible with the connecting foot (12), and the inner bottom wall of each slot is fixedly connected with a magnetic absorbing piece that is compatible with the connecting foot (12).
4. A piano key cleaning device for preventing dust from falling into crevices according to claim 1, characterized in that: The bottom of the first connecting shaft (5) is provided with a first connecting groove that is adapted to the first fixed shaft (6), and the top of the second connecting shaft (9) is provided with a second connecting groove that is adapted to the second fixed shaft (8). The surfaces of the first fixed shaft (6) and the second fixed shaft (8) are both provided with anti-slip textures.
5. A piano key cleaning device for preventing dust from falling into crevices according to claim 1, characterized in that: The bottom of the inner side of the housing (1) is provided with a rotating opening that is compatible with the first connecting shaft (5), and the inner side of the connecting plate (2) is provided with a through opening that is compatible with the first connecting shaft (5). The rotating opening and the through opening are the same size and connected to each other.
6. A piano key cleaning device for preventing dust from falling into crevices according to claim 1, characterized in that: The friction cylinder (7) is located between the left and right dust baffles (3) on opposite sides. The left part of the friction cylinder (7) is in contact with the left dust baffle (3), and the right part of the friction cylinder (7) is in contact with the right dust baffle (3).
7. A piano key cleaning device for preventing dust from falling into crevices according to claim 1, characterized in that: A copper mesh (13) is embedded in the inner side of the dust baffle (3), and the bottom of the friction disc (10) is in contact with the adsorption plate (11).
8. A piano key cleaning device for preventing dust from falling into crevices according to claim 1, characterized in that: The dust baffle (3) and the adsorption plate (11) are both polytetrafluoroethylene plates, the friction cylinder (7) is a nitrile rubber cylinder, and the friction disc (10) is a nitrile rubber disc.