Key mechanism of electric piano keyboard

Abstract

The utility model discloses a key mechanism of an electronic piano keyboard, which comprises white key guide teeth and black key guide teeth which are arranged on a key support of the electronic piano keyboard and correspond to each white key and each black key, and integrally formed key tenons are arranged at the front ends of each white key and each black key. The key tenon is connected with the key support through an elastic mechanism, the elastic mechanism comprises a first connecting piece and a second connecting piece which are longitudinally and oppositely arranged, and the first connecting piece and the second connecting piece are connected through an elastic piece. The first connecting piece is connected with the key tenon, and the second connecting piece is connected with the key support, so that the rebounding effect of pressing the black and white keys by a player is good, the pressing hand is not tired, the playing hand feeling is changed, the continuous striking speed of the black and white keys is improved, and the player can better pop up sound quality. The structure is simple, the action is flexible, and the use is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to piano keyboard technical field, concretely relates to a piano key mechanism of electric piano keyboard. BACKGROUND

[0002] Electric piano is a kind of electric sound instrument, because it does not have to tune, rhythm and tone have selectivity, and outside sound and inside sound can be switched, and the price is cheaper compared with traditional piano, so in recent years, it is pursued by more and more music lovers. However, the black and white key plastic parts of the piano key mechanism of the existing electric piano keyboard are positioned by gravity hammer back and forth when knocking and playing, wherein the front end of the black and white key plastic part is connected with the key support through a rotating shaft, to realize the rebound of the black and white key plastic part.

[0003] Chinese patent authorized announcement No. CN206224992U discloses a buckle type electric piano keyboard, which comprises a key seat and black and white keys. The front end of each black and white key is provided with a tenon. The two side surfaces of the tenon are provided with outwardly protruding rotating shafts. The front end of the key seat is provided with a groove for buckling the tenon of the black and white key. The two sides of the groove are provided with circular-arc notches matched with the rotating shafts, so that the black and white keys can rebound flexibly on the key seat. However, this structure has poor rebound effect, slow continuous hitting speed, inflexible action and poor playing feeling, and cannot meet the needs of players. UTILITY MODEL CONTENT

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the utility model aims to provide a piano key mechanism of electric piano keyboard.

[0005] The utility model realizes the following technical scheme: a piano key mechanism of electric piano keyboard, which comprises white key guide teeth and black key guide teeth arranged at positions corresponding to each white key and black key of an electronic piano keyboard. The front end of each white key and black key is provided with an integrally formed key tenon. The key tenon is connected with the key support through an elastic mechanism. The elastic mechanism comprises first and second connecting members arranged in longitudinal opposition. The first and second connecting members are connected through an elastic member.

[0006] Preferably, the elastic member, the first connecting member and the second connecting member are in an integral structure.

[0007] Preferably, the first and second connecting members each comprise a support portion. The lower end of each support portion is provided with a limiting portion, so that an active spacing is formed between the two limiting portions. The upper end of the support portion is provided with a positioning column and a connecting rod. The end of the positioning column is provided with an upwardly protruding positioning portion. The end of the connecting rod is provided with an outwardly protruding positioning buckle. The key support and the key tenon are each provided with a positioning hole matched with the positioning portion for fixing, and a buckle hole matched with the positioning buckle for fixing.

[0008] Preferably, the center distance between the positioning hole and the buckle hole is smaller than the center distance between the positioning part and the connecting rod.

[0009] Preferably, the first inclined surface and the second inclined surface are arranged between the key support and the key tenon and the positioning buckle, the first inclined surface is arranged on one side of the buckle hole, and the second inclined surface is arranged on one side of the positioning buckle.

[0010] Preferably, the positioning column is provided with a hollow structure.

[0011] Compared with the prior art, the utility model has the following advantages and beneficial effects: the first connecting piece and the second connecting piece are connected through the elastic piece, the first connecting piece is connected with the key tenon, the second connecting piece is connected with the key support during installation, the rebound effect of the black and white keys pressed by the player is good, the hand is not tired, the playing feeling is changed, the speed of the black and white keys is improved, and the player can play the sound quality better. It has the advantages of simple structure, flexible operation and more convenient use. BRIEF DESCRIPTION OF DRAWINGS

[0012] Other features, objects and advantages of the utility model will become more apparent through reading the following detailed description of the non-limiting embodiments with reference to the accompanying drawings:

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the A enlarged view of Figure 1

[0015] Figure 3 It is a structural schematic diagram of the A-A direction of Figure 1

[0016] Figure 4 It is a top view schematic diagram of the key support of the utility model;

[0017] Figure 5 It is a structural schematic diagram of the B enlarged view of Figure 4

[0018] Figure 6 It is a structural schematic diagram of the elastic mechanism of the utility model;

[0019] The reference signs involved in the above drawings are explained as follows:

[0020] ​​​1 - key support, 2 - white key, 3 - black key, 4 - white key guide tooth, 5 - black key guide tooth, 6 - key tenon, 60 - second inclined surface, 7 - elastic mechanism, 8 - first connecting piece, 9 - second connecting piece, 10 - first inclined surface, 80 - support part, 81 - limiting part, 82 - movable interval, 83 - positioning column, 84 - connecting rod, 89 - elastic piece, 830 - positioning part, 831 - positioning hole, 832 - hollow structure, 840 - positioning buckle, 841 - buckle hole. DETAILED DESCRIPTION

[0021] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0022] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0023] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] REFERENCE Figures 1 to 6As shown, a key mechanism of an electronic piano keyboard comprises white key guide teeth 4 and black key guide teeth 5 provided on a key support 1 of the electronic piano keyboard at positions corresponding to each white key 2 and black key 3, each of the white key 2 and black key 3 is provided with an integrally formed key tenon 6 at a front end, the key tenon 6 is connected with the key support 1 through an elastic mechanism 7, the elastic mechanism 7 comprises a first connecting piece 8 and a second connecting piece 9 arranged in longitudinal opposition, the first connecting piece 8 and the second connecting piece 9 are connected through an elastic piece 89, wherein the elastic piece 89 is an integral structure with the first connecting piece 8 and the second connecting piece 9.

[0025] In order to form an elastic connection between the first connecting piece 8 and the second connecting piece 9, in the embodiment, the elastic piece 89 is made of a ductile material. That is, the elastic piece 89 can be a metal material or a non-metal material, when the elastic piece 89 adopts a non-metal material, a material such as plastic with good ductility can be used.

[0026] Specifically, the first connecting piece 8 and the second connecting piece 9 each comprise a support portion 80, each support portion 80 is provided with a limiting portion 81 at a lower end to form an active spacing 82 between the two limiting portions 81 to control the pressing stroke of the black and white keys and prevent the black and white keys from being pressed excessively, the support portion 80 is provided with a positioning column 83 and a connecting rod 84 at an upper end, the end of the positioning column 83 is provided with an upwardly protruding positioning portion 830, the end of the connecting rod 84 is provided with an outwardly protruding positioning buckle 840, the key support 1 and the key tenon 6 are each provided with a positioning hole 831 fixedly matched with the positioning portion 830 and a buckle hole 841 fixedly matched with the positioning buckle 840. That is, the positioning hole 831 on the key support 1 is connected with the positioning portion 830 on the first connecting piece 8, and the buckle hole 841 on the key support 1 is connected with the positioning buckle 840 on the first connecting piece 8; the positioning hole 831 on the key tenon 6 is connected with the positioning portion 830 on the second connecting piece 8, and the buckle hole 841 on the key tenon 6 is connected with the positioning buckle 840 on the first connecting piece 8; since the elastic mechanism is made of a ductile material, the positioning hole 831 has a diameter slightly smaller than the outer diameter of the positioning portion 830 so that the positioning hole 831 can fix the positioning portion 830.

[0027] In addition, a first inclined surface 10 and a second inclined surface 60 are provided between the key support 1 and the key tenon 6 and the positioning buckle 840 respectively, the first inclined surface 10 is located on one side of the buckle hole 841, and the second inclined surface 60 is located on one side of the positioning buckle 840, so that the first connecting piece 8 is more firmly connected with the key tenon 6, and the second connecting piece 9 is more firmly connected with the key support 1.

[0028] In order to enable the positioning buckle 840 to be firmly clamped in the clasp hole 840, the center distance between the positioning hole 831 and the clasp hole 841 is smaller than the center distance between the positioning part 830 and the connecting rod 84. During installation, since the elastic mechanism is integrally made of a ductile material, the positioning column 83 and the connecting rod 84 can be deformed towards or away from each other, that is, deforming the positioning column 83 and the connecting rod 84 towards each other so that the center distance between the two is adapted to the center distance between the positioning part 830 and the connecting rod 84, the positioning buckle can be inserted into the clasp hole, the positioning part is inserted into the positioning hole, and finally the positioning column 83 and the connecting rod 84 return to the original state, the second inclined surface 60 of the positioning buckle 840 is tightly attached to the first inclined surface 10, and the two are firmly connected and are not easy to fall off.

[0029] It should be noted that the hollow structure 832 is provided on the positioning column 83, which can reduce the material and reduce the weight of the elastic mechanism

[0030] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A key mechanism of an electric piano keyboard, comprising a white key guide tooth (4) and a black key guide tooth (5) provided at a position corresponding to each white key (2) and black key (3) of a key support (1) of an electric piano keyboard, each of the white key (2) and black key (3) being provided with an integrally formed key tenon (6) at a front end thereof, the key tenon (6) being connected to the key support (1) through an elastic mechanism (7), the elastic mechanism (7) comprising a first connecting member (8) and a second connecting member (9) arranged in longitudinal opposition, the first connecting member (8) and the second connecting member (9) being connected through an elastic member (89).

2. A key mechanism for an electric piano keyboard as defined in claim 1, characterized in that: The elastic member (89) and the first connecting member (8) and the second connecting member (9) are of an integral structure.

3. A key mechanism for an electric piano keyboard according to claim 1 or 2, characterized in that: The first connecting member (8) and the second connecting member (9) each comprise a support portion (80), each support portion (80) being provided at a lower end thereof with a limiting portion (81) so as to form an active spacing (82) between the two limiting portions (81), the support portion (80) being provided at an upper end thereof with a positioning column (83) and a connecting rod (84), the positioning column (83) being provided at an end portion thereof with an upwardly protruding positioning portion (830), the connecting rod (84) being provided at an end portion thereof with an outwardly protruding positioning buckle (840), the key support (1) and the key tenon (6) each being provided with a positioning hole (831) fixedly cooperating with the positioning portion (830) and a buckle hole (841) fixedly cooperating with the positioning buckle (840).

4. A key mechanism for an electric piano keyboard as defined in claim 3, characterized in that: The center spacing between the positioning hole (831) and the buckle hole (841) is smaller than the center spacing between the positioning portion (830) and the connecting rod (84).

5. A key mechanism for an electric piano keyboard as defined in claim 1, wherein: The key support (1) and the key tenon (6) are respectively provided with a first inclined surface (10) and a second inclined surface (60) cooperating with the positioning buckle (840), the first inclined surface (10) being located at one side of the buckle hole (841), and the second inclined surface (60) being located at one side surface of the positioning buckle (840).

6. A key mechanism for an electric piano keyboard as defined in claim 3, wherein: The positioning column (83) is provided with a hollow structure (832).

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