Electronic keyboard upper cover

Abstract

The invention relates to the technical field of electronic keyboards, and particularly discloses an electronic keyboard upper cover which comprises an upper cover body arranged on a lower cover, a clamping device is arranged in the lower cover, and the clamping device comprises a rotating shaft rotationally matched with the lower cover and a clamping gear installed on the rotating shaft. A clamping gear is arranged on the upper cover body, a clamping rack matched with the clamping gear is arranged on the upper cover body, when the upper cover body is arranged on the lower cover in a sleeving mode, the clamping gear is connected with the clamping rack in a clamping mode, and a locking device used for locking and unlocking rotation of the rotating shaft is arranged in the lower cover. According to the upper cover of the electronic keyboard, when the locking device unlocks the rotating shaft, the upper cover body is arranged in the lower cover in a sleeving mode, the locking device extrudes and locks the rotating shaft, installation between the upper cover body and the lower cover can be achieved, the rotating shaft is unlocked through the locking device, at the moment, the upper cover body is pulled upwards, the upper cover body can be disassembled, and the upper cover body can be conveniently detached. And the mounting and dismounting convenience of the upper cover can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of electronic keyboards, and in particular to an upper cover of an electronic keyboard. Background Art

[0002] The electronic keyboard, also often called the electronic organ, is a popular electronic musical instrument. Its development history can be traced back to the electric organ that imitated the pipe organ, and later gradually developed into the modern electronic keyboard. The characteristics of the electronic keyboard are that the volume of the pronunciation can be freely adjusted, the range is wide, the harmony is rich, and it can even imitate the effect of an orchestra, with extremely rich expressiveness. It can also imitate a variety of timbres, and even produce sounds that conventional instruments cannot produce, such as chorus, wind and rain, and cosmic sounds. When playing solo, the electronic keyboard can also be accompanied by a percussion-like beat accompaniment at will, which is suitable for playing modern music with a strong rhythm.

[0003] A Chinese patent application document with publication number CN112242129A discloses a keyboard musical instrument and a method for manufacturing the same, comprising: an upper shell having an upper mounting portion including a fastening hole; a lower shell having a lower mounting portion corresponding to the upper mounting portion and including a fastening insertion hole; a key unit having a key connecting portion connecting a plurality of keys, the key connecting portion being provided with an insertion hole in which at least one of the upper mounting portion and the lower mounting portion is arranged; and a fastening component passing through the fastening insertion hole of the lower mounting portion and fastening to the fastening hole of the upper mounting portion from the bottom.

[0004] In the above technology, the upper shell and the lower shell are fixedly connected, which makes the installation and removal of the upper cover of the electronic keyboard inconvenient. Summary of the invention

[0005] The invention provides an upper cover of an electronic keyboard, aiming to solve the technical problem in the prior art that an upper shell and a lower shell are fixedly connected, resulting in inconvenient installation and removal of the upper cover of the electronic keyboard.

[0006] The present invention provides an upper cover of an electronic keyboard, comprising an upper cover body arranged on a lower cover, a clamping device arranged inside the lower cover, the clamping device comprising a rotating shaft rotatably matched with the lower cover and a clamping gear installed on the rotating shaft, a clamping rack matched with the clamping gear arranged on the upper cover body, when the upper cover body is sleeved on the lower cover, the clamping gear is clamped with the clamping rack, and a locking device for locking and unlocking the rotation of the rotating shaft is arranged inside the lower cover.

[0007] By adopting the above technical scheme, through the setting of the locking device, the snap-in gear and the snap-in rack, when the locking device unlocks the rotating shaft, the upper cover body is inserted into the lower cover, and the snap-in rack can drive the snap-in gear to rotate. After the upper cover body is installed on the lower cover, the locking device squeezes and locks the rotating shaft. At this time, the snap-in rack and the snap-in gear are snap-locked, so that the installation between the upper cover body and the lower cover can be realized. When the upper cover body needs to be disassembled, the rotating shaft is unlocked by the locking device. At this time, the upper cover body is pulled upward to drive the snap-in rack to slide and drive the snap-in gear to rotate. After the upper cover body slides out of the lower cover, the disassembly of the upper cover body is completed, which can improve the convenience of installation and disassembly of the upper cover.

[0008] Preferably, the locking device includes a fixed shell installed on the lower cover, a ratchet rotatably fitted in the fixed shell, a pawl rotatably fitted in the fixed shell, and an adjusting component for rotationally adjusting the pawl, the ratchet is connected to the rotating shaft, the adjusting component drives the pawl to rotate, and after one end of the pawl rotates onto the ratchet, the pawl is engaged with the ratchet.

[0009] By adopting the above technical solution, the pawl can be driven to rotate through the adjusting component. When one end of the pawl is rotated to the ratchet, the pawl is engaged with the ratchet. At this time, the rotating shaft cannot rotate, thereby achieving extrusion locking of the rotating shaft. When the adjusting component drives the pawl to rotate, one end of the pawl is turned away from the ratchet, and the pawl is no longer engaged with the ratchet. At this time, the rotating shaft can rotate, thereby achieving unlocking of the rotating shaft.

[0010] Preferably, the adjustment assembly includes an elastic sheet for pushing the pawl to press against the ratchet and an extrusion rod for pushing the pawl to turn away from the ratchet, the extrusion rod is slidably fitted in the fixed shell, one end of the elastic sheet is connected to the fixed shell, and the other end abuts against the pawl.

[0011] By adopting the above technical solution, pressing the extrusion rod can drive the pawl to rotate and compress the elastic sheet. When the extrusion rod no longer presses the pawl, the elastic sheet can release the elastic restoring force to drive the pawl to reset.

[0012] Preferably, the teeth of the engaging rack are provided with right-angled surfaces and inclined surfaces, the right-angled surfaces are engaged with the teeth of the engaging gear, and the upper cover body is provided with an adjusting device for driving the engaging rack away from or close to the engaging gear.

[0013] By adopting the above technical solution and setting the adjusting device, the right-angled surface on the teeth of the snap-in rack is located above the inclined surface. When the upper cover body is installed on the lower cover, the snap-in gear contacts the right-angled surface. At this time, the snap-in gear is snap-connected with the right-angled surface, and the installation between the upper cover body and the lower cover is more stable. When the inclined surface contacts the snap-in gear, the snap-in rack can be driven away from the snap-in gear through the adjusting device, and the snap-in rack is no longer snap-connected with the snap-in gear.

[0014] Preferably, the adjustment device includes a fixed frame installed on the upper cover body and an elastic member for driving the snap-on rack to move, the snap-on rack is slidably fitted in the fixed frame, one end of the elastic member is connected to the fixed frame, and the other end is connected to the snap-on rack.

[0015] By adopting the above technical solution, when the inclined surface contacts the engaging gear, the engaging gear can push the engaging rack to slide into the fixed frame and compress the elastic part. When the engaging gear no longer squeezes the engaging rack, the elastic part releases the elastic restoring force and drives the engaging rack to reset.

[0016] Preferably, a pressing rod for pressing the extrusion rod is slidably fitted on the lower cover.

[0017] By adopting the above technical solution and setting the pressing rod, pressing the extrusion rod is made more convenient.

[0018] Preferably, a clamping block is provided on the upper cover body, and a receiving device matched with the clamping block is provided on the lower cover.

[0019] Preferably, the receiving device comprises a mounting plate mounted on the lower cover and an elastic plate mounted on the mounting plate, and the elastic plate is adapted to the clamping block.

[0020] By adopting the above technical solution, when the upper cover body is installed to the lower cover, the clamping block can squeeze the elastic plate, causing the elastic plate to deform. When the upper cover body is disassembled, the elastic restoring force of the elastic plate can push the clamping block up, and then push the upper cover body up, making the disassembly of the upper cover body more labor-saving.

[0021] Preferably, the elastic plate is provided with an extrusion slope for extruding the clamping block.

[0022] By adopting the above technical solution and setting the extrusion slope, when the upper cover body is installed on the lower cover, the snap-in block can be inserted into the elastic plate and compress the elastic plate. When the upper cover body is disassembled, the elastic plate can release the elastic restoring force, pushing the snap-in block up, and then pushing the upper cover body up, making the disassembly of the upper cover body more convenient.

[0023] Preferably, a guide block is provided on the upper cover body, and a guide groove matched with the guide block is opened on the lower cover.

[0024] By adopting the above technical solution and arranging the guide block and the guide groove, the upper cover body is made more stable when sliding on the lower cover.

[0025] The beneficial effects of the present invention are: 1. In the present invention, through the arrangement of the locking device, the engaging gear and the engaging rack, when the locking device unlocks the rotating shaft, the upper cover body is inserted into the lower cover, and the engaging rack can drive the engaging gear to rotate. After the upper cover body is installed on the lower cover, the locking device squeezes and locks the rotating shaft, and the engaging rack and the engaging gear are engaged and locked, so that the installation between the upper cover body and the lower cover can be realized. When the upper cover body needs to be disassembled, the rotating shaft is unlocked by the locking device, and the upper cover body is pulled upward at this time to drive the engaging rack to slide and drive the engaging gear to rotate. After the upper cover body slides out of the lower cover, the disassembly of the upper cover body is completed, which can improve the convenience of installation and disassembly of the upper cover.

[0026] 2. In the present invention, through the setting of the adjusting device, the right-angled surface on the teeth of the engaging rack is located above the inclined surface. When the upper cover body is installed on the lower cover, the engaging gear contacts the right-angled surface. At this time, the engaging gear is engaged with the right-angled surface, and the installation between the upper cover body and the lower cover is more stable. When the inclined surface contacts the engaging gear, the engaging rack can be driven away from the engaging gear through the adjusting device, and the engaging rack is no longer engaged with the engaging gear.

[0027] 3. In the present invention, by setting the extrusion slope, when the upper cover body is installed on the lower cover, the clamping block can be inserted into the elastic plate and compress the elastic plate. When the upper cover body is disassembled, the elastic plate can release the elastic restoring force, push the clamping block to rise, and then push the upper cover body to rise, making the disassembly of the upper cover body more convenient.

[0028] 4. In the present invention, through the setting of the receiving device and the clamping block, when the upper cover body is installed to the lower cover, the clamping block can squeeze the elastic plate to cause the elastic plate to deform. When the upper cover body is disassembled, the elastic restoring force of the elastic plate can push the clamping block up, and then push the upper cover body up, making the disassembly of the upper cover body more labor-saving.

[0029] Preferably, the elastic sheet is provided with an extrusion slope for extruding the clamping block. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0031] Figure 2 It is a structural schematic diagram showing the connection relationship between the lower cover and the upper cover body of the present invention.

[0032] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle.

[0033] Figure 4 It is a partial cross-sectional view of the present invention.

[0034] Figure 5It is a partial cross-sectional view showing the connection relationship between the clamping device and the clamping rack of the present invention.

[0035] Figure 6 yes Figure 5 A partial enlarged view of point B in the middle.

[0036] Reference numerals: 1. Lower cover; 11. Guide groove; 2. Upper cover body; 3. Snap-fit ​​device; 31. Rotating shaft; 32. Snap-fit ​​gear; 4. Snap-fit ​​rack; 41. Right-angle surface; 42. Inclined surface; 5. Locking device; 51. Fixed shell; 52. Ratchet; 53. Paw; 54. Adjustment assembly; 541. Elastic sheet; 542. Extrusion rod; 6. Adjustment device; 61. Fixed frame; 62. Elastic member; 7. Pressing rod; 8. Snap-fit ​​block; 9. Receiving device; 91. Mounting plate; 92. Elastic plate; 921. Extrusion slope; 10. Guide block; 11. Guide groove. DETAILED DESCRIPTION

[0037] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0038] Reference Figure 1-Figure 6 The electronic keyboard upper cover of the present invention comprises an upper cover body 2 arranged on a lower cover 1, a clamping device 3 is arranged in the lower cover 1, one end of the upper cover body 2 close to the lower cover 1 is arranged in a "Hu"-shaped structure, two groups of the clamping devices 3 are symmetrically arranged along the length direction of the upper cover body 2, and a clamping rack 4 adapted to the clamping device 3 is arranged on the upper cover body 2. When the upper cover body 2 needs to be installed on the lower cover 1, the upper cover body 2 is inserted into the lower cover 1, and at this time, the clamping device 3 is clamped and locked with the clamping rack 4, so that the installation between the upper cover body 2 and the lower cover 1 can be realized. When the clamping device 3 is no longer clamped and locked with the clamping rack 4, the upper cover body 2 is disassembled from the lower cover 1, and the disassembly operation of the upper cover body 2 can be completed.

[0039] Reference Figure 2 and Figure 4 A plurality of guide blocks 10 are fixedly arranged on the upper cover body 2. The plurality of guide blocks 10 are symmetrically arranged in two groups along the width direction of the upper cover body 2. Each group includes a plurality of guide blocks 10 along the length direction of the upper cover body 2. The guide blocks 10 are arc-shaped blocks. A guide groove 11 adapted to the guide blocks 10 is opened on the lower cover 1.

[0040] Reference Figure 1-Figure 3A plurality of clamping blocks 8 are fixedly provided at both ends of the upper cover body 2 along the length direction of the upper cover body 2, and the plurality of clamping blocks 8 are arranged along the width direction of the upper cover body 2. The clamping blocks 8 are fixedly provided on the lower surface of the upper cover body 2, and the clamping blocks 8 are arranged as arc-shaped blocks. A receiving device 9 adapted to the clamping blocks 8 is arranged on the lower cover 1, and the receiving device 9 comprises a mounting plate 91 fixedly installed on the lower cover 1 and an elastic plate 92 fixedly installed on the mounting plate 91, the elastic plate 92 is an "S"-shaped plate, and the bottom end of the elastic plate 92 is fixedly connected to the mounting plate 91, the elastic plate 92 is made of metal material, the elastic plate 92 is adapted to the clamping block 8, and the elastic plate 92 is provided with an extrusion inclined surface 921 for extruding the clamping block 8.

[0041] Reference Figure 4-Figure 6 The clamping device 3 includes a rotating shaft 31 rotatably matched with the lower cover 1 and a clamping gear 32 fixedly installed on the rotating shaft 31. A groove for installing the rotating shaft 31 and the clamping gear 32 is opened on the lower cover 1. The rotating shaft 31 is arranged along the width direction of the lower cover 1. The clamping rack 4 is adapted to the clamping gear 32. The teeth of the clamping rack 4 are provided with a right-angled surface 41 and an inclined surface 42. The right-angled surface 41 is clamped with the teeth of the clamping gear 32, and the right-angled surface 41 on the teeth of the clamping rack 4 is located above the inclined surface 42.

[0042] Reference Figure 4-Figure 6 The upper cover body 2 is provided with an adjusting device 6 for driving the engaging rack 4 away from or close to the engaging gear 32. The adjusting device 6 includes a fixed frame 61 fixedly mounted on the inner wall of the upper cover body 2 and an elastic member 62 for driving the engaging rack 4 to move. The side of the fixed frame 61 close to the engaging rack 4 is an open end, and the other end is a sealed end. The engaging rack 4 slides along the length direction of the lower cover 1 and fits in the fixed frame 61. The elastic member 62 directly adopts a spring. One end of the elastic member 62 is fixedly connected to the fixed frame 61, and the other end is fixedly connected to the engaging rack 4. In the initial state, the elastic member 62 pushes the engaging rack 4 so that the engaging rack 4 contacts the engaging gear 32.

[0043] Reference Figure 4-Figure 6When the upper cover body 2 is sleeved on the lower cover 1, the engaging gear 32 is engaged with the engaging rack 4, and a locking device 5 for locking and unlocking the rotation of the rotating shaft 31 is provided in the lower cover 1. The locking device 5 includes a fixed shell 51 fixedly mounted on the lower cover 1, a ratchet 52 rotatably matched in the fixed shell 51, a pawl 53 rotatably matched in the fixed shell 51, and an adjusting component 54 for rotationally adjusting the pawl 53. The rotating shaft 31 is penetrated in the fixed shell 51 and rotatably matched with the fixed shell 51. The ratchet 52 is fixedly connected to the rotating shaft 31. A rotating shaft rotatably matched with the fixed shell 51 is fixedly penetrated at the middle position of the pawl 53. The adjusting component 54 drives the pawl 53 to rotate. After one end of the pawl 53 rotates onto the ratchet 52, the pawl 53 is engaged with the ratchet 52.

[0044] Reference Figure 4-Figure 6 The adjustment assembly 54 includes an elastic sheet 541 for pushing the pawl 53 to press against the ratchet 52 and a squeeze rod 542 for pushing the pawl 53 to rotate away from the ratchet 52. The squeeze rod 542 is slidably matched with the fixed shell 51 along the vertical direction. The squeeze rod 542 is an "I"-shaped rod, and the elastic sheet 541 is an "S"-shaped rod. One end of the elastic sheet 541 is fixedly connected to the fixed shell 51, and the other end is abutted against the pawl 53. The lower cover 1 is slidably matched with a pressing rod 7 for pressing the squeezing rod 542. The pressing rod 7 is a "Z"-shaped structure. A groove for sliding the pressing rod 7 is provided on the lower cover 1. One end of the pressing rod 7 is fixedly connected to the squeezing rod 542.

[0045] The implementation principle of the upper cover of an electronic keyboard of the present invention is as follows: when the upper cover body 2 needs to be installed on the lower cover 1, the bottom end of the upper cover body 2 is first aligned with the lower cover 1, the guide block 10 is aligned with the guide groove 11, and the upper cover body 2 is inserted into the lower cover 1 from above, and the guide block 10 slides in the guide groove 11. During the sliding process of the upper cover body 2, the adjustment device 6 and the clamping rack 4 are driven to descend at the same time, and the clamping gear 32 contacts the clamping rack 4. At this time, the inclined surface 42 of the clamping rack 4 first contacts the teeth of the clamping gear 32. At this time, the clamping gear 32 can push the clamping rack 4, so that the clamping rack 4 slides into the fixed frame 61 and compresses the elastic member 62. At this time, the clamping rack 4 is no longer clamped with the clamping gear 32, and the upper cover body 2 can slide into the lower cover 1; When the upper cover body 2 is lowered, the clamping block 8 is also driven to lower. When the clamping block 8 is lowered, it will squeeze the elastic plate 92, so that the two ends of the elastic plate 92 are deformed in directions away from each other. When the upper cover body 2 is completely slid onto the lower cover 1, the clamping block 8 is inserted into the elastic plate 92, and the installation of the upper cover body 2 is completed. When the upper cover body 2 needs to be disassembled, the operator holds the side of the upper cover body 2 with both hands and pushes the pressing rod 7 down. When the pressing rod 7 goes down, it drives the squeezing rod 542 down. When the squeezing rod 542 goes down, it drives one end of the pawl 53 down, and the pawl 53 rotates. The end of the pawl 53 close to the ratchet 52 rotates upward and squeezes the elastic sheet 541. At this time, the pawl 53 turns away from the ratchet 52, and the pawl 53 is no longer locked with the ratchet 52. The rotating shaft 31 and the engaging gear 32 can rotate, and the upper cover body 2 is pushed upward. The upper cover body 2 drives the adjusting device 6 and the engaging rack 4 to rise. At this time, the right-angled surface 41 of the teeth of the engaging rack 4 contacts the engaging gear 32 first. When the engaging rack 4 rises, it can drive the engaging gear 32 to rotate, and drive the rotating shaft 31 and the ratchet 52 to rotate; At the same time, the elastic plate 92 can release the elastic restoring force to squeeze the clamping block 8, so that the clamping block 8 rises. The clamping block 8 can drive the upper cover body 2 to rise, and the upper cover body 2 is disassembled. When the upper cover body 2 slides out from the lower cover 1, the disassembly operation of the upper cover body 2 is completed.

[0046] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An upper cover of an electronic keyboard, comprising an upper cover body (2) arranged on a lower cover (1), characterized in that: A clamping device (3) is provided in the lower cover (1), the clamping device (3) comprising a rotating shaft (31) rotatably matched with the lower cover (1) and a clamping gear (32) mounted on the rotating shaft (31); a clamping rack (4) matched with the clamping gear (32) is provided on the upper cover body (2); when the upper cover body (2) is sleeved on the lower cover (1), the clamping gear (32) is clamped with the clamping rack (4); and a locking device (5) for locking and unlocking the rotation of the rotating shaft (31) is provided in the lower cover (1).

2. The electronic keyboard cover according to claim 1, characterized in that: The locking device (5) comprises a fixed shell (51) mounted on the lower cover (1), a ratchet (52) rotatably engaged with the fixed shell (51), a pawl (53) rotatably engaged with the fixed shell (51), and an adjusting assembly (54) for adjusting the rotation of the pawl (53), wherein the ratchet (52) is connected to the rotating shaft (31), and the adjusting assembly (54) drives the pawl (53) to rotate, and after one end of the pawl (53) rotates onto the ratchet (52), the pawl (53) is engaged with the ratchet (52).

3. The electronic keyboard cover according to claim 2, characterized in that: The adjustment assembly (54) comprises an elastic sheet (541) for pushing the pawl (53) to press against the ratchet (52) and an extrusion rod (542) for pushing the pawl (53) to rotate away from the ratchet (52); the extrusion rod (542) is slidably matched with the fixed shell (51); one end of the elastic sheet (541) is connected to the fixed shell (51) and the other end is in contact with the pawl (53).

4. The electronic keyboard cover according to claim 1, characterized in that: The teeth of the engaging rack (4) are provided with a right-angled surface (41) and an inclined surface (42), the right-angled surface (41) being engaged with the teeth of the engaging gear (32), and the upper cover body (2) is provided with an adjusting device (6) for driving the engaging rack (4) to move away from or towards the engaging gear (32).

5. The electronic keyboard cover according to claim 4, characterized in that: The adjusting device (6) comprises a fixed frame (61) mounted on the upper cover body (2) and an elastic member (62) for driving the engaging rack (4) to move; the engaging rack (4) is slidably fitted in the fixed frame (61); one end of the elastic member (62) is connected to the fixed frame (61) and the other end is connected to the engaging rack (4).

6. The electronic keyboard cover according to claim 3, characterized in that: The lower cover (1) is slidably fitted with a pressing rod (7) for pressing the extrusion rod (542).

7. The electronic keyboard cover according to claim 1, characterized in that: The upper cover body (2) is provided with a clamping block (8), and the lower cover (1) is provided with a receiving device (9) adapted to the clamping block (8).

8. The electronic keyboard cover according to claim 7, characterized in that: The receiving device (9) comprises a mounting plate (91) mounted on the lower cover (1) and an elastic plate (92) mounted on the mounting plate (91); the elastic plate (92) is adapted to the clamping block (8).

9. The electronic keyboard cover according to claim 8, characterized in that: The elastic plate (92) is provided with an extrusion inclined surface (921) for extruding the clamping block (8).

10. The electronic keyboard cover according to claim 1, characterized in that: The upper cover body (2) is provided with a guide block (10), and the lower cover (1) is provided with a guide groove (11) adapted to the guide block (10).

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