A type of electric piano black key and electric piano

Abstract

This utility model discloses a black key for an electric piano and an electric piano, relating to the technical field of electric pianos. It is used to mount on a keyboard base and includes a key body and an outer cover. The key body includes a mounting base for connecting to the keyboard base, with a protrusion at the upper end of the mounting base. The outer cover is made of a translucent material and has an open bottom. The outer cover is fitted onto the protrusion. Through the cooperation of the outer cover and the key body, a jelly-like visual effect is produced, unlike existing technologies where the effect is directly derived from the keys themselves. This not only creates a more realistic visual effect but also eliminates the need to disassemble the entire electric piano when these keys with special visual effects show signs of aging such as yellowing after prolonged use, making maintenance convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of electric pianos, specifically to an electric piano black key and an electric piano. Background Technology

[0002] Both digital pianos and traditional pianos have keyboards with black and white keys. The sound production principle of a digital piano involves converting the force of pressing the keys into an electrical signal via a sensor component, which is then transmitted to a built-in sound chip. This chip simulates the timbre and resonance of a traditional piano based on factors such as the force, speed, and release time of the key press. The chip then converts the generated sound signal into an analog audio signal, which is output externally through a built-in speaker or headphones. Compared to traditional pianos, digital pianos are suitable for users with lower budgets who need to use the piano in multiple scenarios. A common example of a digital piano is described in Chinese patent CN213691422U, which describes an integrated digital piano keyboard. This keyboard includes a main body, a keyboard base on top of the main body, black and white keys on top of the keyboard base, a speaker fixedly connected to the top of the main body, a dust cover on top of the speaker fixedly connected to the main body, and a baffle plate near the speaker end of the main body. Both the dust cover and the main body are fixedly connected to the baffle plate. Current digital pianos have a simple keyboard design. Some piano keys on the market have fluorescent or jelly-like textures, such as the fluorescent piano keys in Chinese patent CN203397676U. These are improvements made directly to the keys themselves, and users come into direct contact with them. These keys are prone to yellowing and other signs of aging, and the visual effect can only be restored by replacing the keys. This requires disassembling the entire digital piano, resulting in high maintenance costs. Utility Model Content

[0003] The purpose of this invention is to provide a black key for an electric piano and an electric piano in order to solve the problems of poor durability and high maintenance costs of existing stylish piano keys.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A black key for an electric piano, for mounting on a keyboard base, includes a key body and an outer cover. The key body includes a mounting base for connecting to the keyboard base, and the upper end of the mounting base is provided with a protrusion. The outer cover is made of a light-transmitting material, and the bottom of the outer cover is open. The outer cover is fitted onto the protrusion.

[0006] As a further embodiment of this utility model: the outer cover and the protrusion are magnetically attracted to each other.

[0007] As a further embodiment of this utility model: a connector is provided at the lower end of the outer cover, and a connecting groove is provided at the upper end of the mounting base, wherein the connector is detachably connected to the connecting groove.

[0008] As a further embodiment of this utility model: the connector is an elastic hook, the connecting groove is an L-shaped groove, and the lower part of the connector is first inserted downward into the connecting groove and then hooks upward onto the inner wall of the connecting groove.

[0009] As a further embodiment of this utility model: the outer cover has a through-hole groove on one side where the connector is provided, the opening direction of the through-hole groove is consistent with the direction of the protrusion of the lower buckle of the connector, and the through-hole groove and the connecting groove are connected.

[0010] As a further embodiment of this utility model: the upper end of the mounting base is provided with a relief groove, the side opening direction of the relief groove is opposite to the direction of the protrusion of the lower buckle of the connector, the relief groove is connected to the connecting groove, and the bottom surface of the relief groove is inclined downward.

[0011] As a further embodiment of this utility model: two connectors are provided, which are respectively located at both ends of the outer cover in the length direction, and the lower buckle protrusions of the two connectors are arranged opposite to each other.

[0012] As a further embodiment of this utility model: during installation, it cooperates with the spring and sensor assembly set on the keyboard base. The mounting base includes a spring-returning part, a first limiting part, a pressing part, and a second limiting part arranged along the length direction of the mounting base. The spring-returning part and the second limiting part are respectively arranged on both sides of the length direction of the mounting base. The first limiting part is adjacent to the spring-returning part, and the pressing part is located between the first limiting part and the second limiting part.

[0013] The lower end of the rebound part is connected to the spring on the keyboard base, the pressing part is used to press down the sensor assembly on the keyboard base, and the first limiting part and the second limiting part are detachably connected to the keyboard base to limit the mounting base from coming off upward.

[0014] An electric piano includes a keyboard base and the aforementioned black keys. The keyboard base includes a third limiting part and a fourth limiting part that both protrude upwards. The fourth limiting part is an inverted L-shaped structure. The first limiting part is open downwards, and the second limiting part is open towards the pressing part. The mounting base and the keyboard base are installed in the following order: the fourth limiting part first enters the second limiting part laterally, and then the first limiting part is detachably connected downwards to the third limiting part.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The black keys of an electric piano of this utility model produce a jelly-like visual effect through the cooperation of the outer cover and the key body. Unlike the existing technology where the effect is directly derived from the keys themselves, the black keys of this utility model not only have a more realistic visual effect, but also do not require the entire electric piano to be disassembled when these keys with special visual effects show signs of aging such as yellowing after long-term use, making maintenance convenient.

[0017] 2. The cover for the black keys of an electric piano of this utility model has a special structural design that makes it easy to remove and replace without damaging other parts of the electric piano during disassembly.

[0018] 3. The installation method of the black keys and keyboard base of the electric piano of this utility model is simple and the structure is relatively stable after installation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the black keys of an electric piano according to the present invention.

[0020] Figure 2 This is a schematic diagram of the separation structure of the black keys of an electric piano according to the present invention.

[0021] Figure 3 for Figure 1 A schematic diagram of the AA cross-section.

[0022] Figure 4 This is a schematic diagram of the overall structure of an electric piano according to the present invention.

[0023] Figure 5 for Figure 4 A schematic diagram of the BB cross-section.

[0024] The components are: 1. Key body; 2. Outer cover; 21. Connector; 3. Mounting base; 31. Connecting groove; 32. Leaving groove; 33. Insertion groove; 34. Spring-rebound part; 35. First limiting part; 36. Pressing part; 37. Second limiting part; 38. Protrusion part; 4. Keyboard base; 41. Spring; 42. Third limiting part; 43. Sensor assembly; 44. Fourth limiting part. Detailed Implementation

[0025] 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.

[0026] Example 1

[0027] A black key for an electric piano, for mounting on a keyboard base 4, includes a key body 1 and an outer cover 2. The key body 1 includes a mounting base 3 for connecting to the keyboard base 4. The mounting base 3 has a protrusion 38 at its upper end. The outer cover 2 is made of a translucent material and has an open bottom. The outer cover 2 is fitted onto the protrusion 38. The translucent material of the outer cover allows the internal shape to be seen. Combined with the key body 1, it forms a jelly-like shape. This design does not involve any modification to the material itself. The cross-sectional area of ​​the protrusion 38 gradually decreases from bottom to top towards the center, facilitating disassembly and installation.

[0028] The lower end of the outer cover 2 is provided with a connector 21, and the upper end of the mounting base 3 is provided with a connecting groove 31. The connector 21 is detachably connected to the connecting groove 31. The connector 21 is an elastic hook, and the connecting groove 31 is an L-shaped groove. The lower part of the connector 21 is first inserted downward into the connecting groove 31 and then hooks upward onto the inner wall of the connecting groove 31. On one side of the outer cover 2 where the connector 21 is provided, a vertically penetrating insertion groove 33 is provided. The opening direction of the side of the insertion groove 33 is consistent with the protruding direction of the lower part of the connector 21, and the insertion groove 33 and the connecting groove 31 are connected. The upper end of the mounting base 3 is provided with a clearance groove 32. The opening direction of the side of the clearance groove 32 is opposite to the protruding direction of the lower part of the connector 21, and the clearance groove 32 and the connecting groove 31 are connected. The bottom surface of the clearance groove 32 is inclined downward.

[0029] Two connectors 21 are provided, and the two connectors 21 are respectively located at both ends of the outer cover 2 along its length. The protruding sides of the lower buckles of the two connectors 21 are arranged opposite to each other. As shown in the figure, two connecting grooves 31 are provided. The two connecting grooves 31 are two L-shaped grooves mirrored on the vertical axis, and one of the connecting grooves 31 is located between the first limiting part 35 and the protrusion 38.

[0030] A black key of an electric piano is installed in conjunction with a spring 41 and a sensor assembly 43 disposed on a keyboard base 4. The mounting base 3 includes a spring-loaded part 34, a first limiting part 35, a pressing part 36, and a second limiting part 37 arranged along the length direction of the mounting base 3. The spring-loaded part 34 and the second limiting part 37 are respectively disposed on both sides of the length direction of the mounting base 3. The first limiting part 35 is adjacent to the spring-loaded part 34, and the pressing part 36 is located between the first limiting part 35 and the second limiting part 37.

[0031] The lower end of the rebound part 34 is connected to the spring 41 on the keyboard base 4. The pressing part 36 is used to press down the sensor assembly 43 on the keyboard base 4. The first limiting part 35 and the second limiting part 37 are detachably connected to the keyboard base 4 to limit the mounting base 3 from coming off upward.

[0032] The keyboard base 4 includes a third limiting part 42 and a fourth limiting part 44, both protruding upwards. The fourth limiting part 44 is an inverted L-shaped structure. The first limiting part 35 is open downwards, and the second limiting part 37 is open towards the pressing part 36. As shown in the figure, the spring-loaded part 34 is a U-shaped column. The first limiting part includes three vertically downward-pointing columns distributed circumferentially and a downward-pointing elastic hook. The third limiting part 42 is an inverted elastic hook. The second limiting part 37 is a square structure with one side hollowed out, and the horizontal structure of the fourth limiting part 44 enters the interior of the second limiting part 37. The structural design of both the third limiting part 42 and the fourth limiting part 44 provides space for the mounting base 3 to fall.

[0033] The installation sequence of the mounting base 3 and the keyboard base 4 is configured as follows: the fourth limiting part 44 first enters the second limiting part 37 laterally, and the first limiting part 35 then detachably connects downward to the third limiting part 42 of the keyboard base 4.

[0034] The working principle of this utility model is as follows: First step: Install the black keys of the electric piano. The steps are as follows: First, align the connectors 21 on both sides of the lower end of the outer cover 2 with the entrances of the two connecting grooves 31 respectively. The connectors 21 move downward along the relief groove 32. The lower part of the connector 21 is squeezed and deformed as it continues to move downward along the inclined bottom surface of the relief groove 32. After moving downward, the connector 21 returns to its original shape and hooks upward onto the inner wall of the connecting groove 31. Second step: Install the black keys of the electric piano onto the keyboard base 4. The steps are as follows: The fourth limiting part 44 first moves horizontally into the second limiting part 37. The first limiting part 35 then moves downward and connects to the third limiting part 42 of the keyboard base 4. After that, the return part 34 can automatically align and connect to the spring 41, and the pressing part 36 can automatically align and connect to the sensor assembly 43.

[0035] When disassembling the outer cover 2, first use an additional tool to insert downwards into the insertion groove 33 to deform the connector 21, and then pull it upwards.

[0036] Example 2

[0037] The difference between this embodiment and embodiment 1 is that there is no connector 21, and the outer cover 2 and the protrusion 38 are magnetically attracted to each other.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Although this specification describes embodiments, not every embodiment contains only one technical solution. This method of description is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art.

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