CN211264918U

CN211264918U - Piano pedal

Info

Publication number: CN211264918U
Application number: CN201920919951.7U
Authority: CN
Inventors: 李可; 刘猜; 田雁飞; 徐江; 赵娜; 陈倬豪; 沈燕琴
Original assignee: Chongqing Technology and Business Institute
Current assignee: Chongqing Technology and Business Institute
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-08-14
Anticipated expiration: 2029-06-18

Abstract

The utility model discloses a piano pedal, by the hypoplastron, the upper plate, first bearing, the second bearing, first connecting rod, second connecting rod and pushing mechanism constitute, the hypoplastron is connected with the footboard ejector pin of piano, hypoplastron up-and-down motion, corresponding sound will be sent, when using when being children, start pushing mechanism, pushing mechanism promotes first bearing and slides along the first spout on the hypoplastron, first bearing drives first connecting rod and slides along first spout, first connecting rod drives the second connecting rod and slides in the second spout through the second bearing, the upper plate is for the distance between the hypoplastron change, can be up to the foot can be up to the upper plate, avoid changing the mode of health seat height and adapt to the footboard, obtain when adjusting footboard and foot and fitting, keep the effect of the adaptation height between hand and the key.

Description

Piano pedal

Technical Field

The utility model relates to a musical instrument technical field especially relates to a piano footboard.

Background

Existing pianos in the market are designed and manufactured according to the height of adults, the problem that the feet cannot be used for pedals when children practice the piano is solved by changing the height of a piano stool, and the problem that the height of hands and keys is not suitable is solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a piano footboard aims at solving among the prior art and changes the highly unsuitable problem of hand and key that highly leads to of musical instrument bench.

In order to achieve the above purpose, the utility model adopts a piano pedal, which comprises a lower plate, an upper plate, a first bearing, a second bearing, a first connecting rod, a second connecting rod and a pushing mechanism, the lower plate is connected with a pedal ejector rod, the upper plate is positioned on one side of the lower plate far away from the ground, a first sliding groove is arranged on the lower plate, a second sliding groove is arranged on the upper plate, the first bearing is in rolling connection with the lower plate, and is positioned in the first chute, the second bearing is connected with the upper plate in a rolling way and is positioned in the second chute, one end of the first connecting rod is hinged with the bearing, the other end of the first connecting rod is hinged with the upper plate, one end of the second connecting rod is hinged with the lower plate, the other end of the second connecting rod is hinged with the second bearing, and the pushing mechanism pushes the first bearing to roll in the first sliding groove.

The piano pedal further comprises a support rod, the support rod is fixedly connected with the two first bearings and is positioned between the two first bearings, and the pushing mechanism is fixedly connected with the support rod.

The pushing mechanism comprises a servo motor and a screw rod, the servo motor is fixedly connected with the lower plate, one end of the screw rod is fixedly connected with the servo motor, and the other end of the screw rod is fixedly connected with the supporting rod.

The number of the second bearings is two, the second bearings are respectively located on two sides of the upper plate, the piano pedal further comprises a supporting column, and the supporting column is fixedly connected with the two second bearings and located between the two second bearings.

Wherein, the piano footboard still includes the pivot, the pivot runs through first connecting rod with the second connecting rod, and with first connecting rod rotates to be connected, with the second connecting rod rotates to be connected, and is located first connecting rod middle part position.

Wherein, pushing mechanism includes push rod, axostylus axostyle, mounting panel, handle and spacing section of thick bamboo, the one end of push rod with the bracing piece is articulated, the one end of axostylus axostyle with the push rod rotates to be connected, and is located the middle part of axostylus axostyle, the mounting panel with the other end fixed connection of axostylus axostyle, mounting panel and piano frame fixed connection, the handle with push rod fixed connection, and be located the push rod is kept away from the one end of bracing piece, spacing section of thick bamboo registrate on the handle, and with handle sliding connection, and with the mounting panel.

The mounting plate is provided with a plurality of jacks, the number of the jacks is multiple, the jacks are arranged in a circular array with the base points of the circle center of the limiting cylinder, the limiting cylinder is provided with a protrusion, the number of the protrusions is consistent with the number of the jacks, and the protrusion is located towards one side of the mounting plate.

The utility model discloses a piano pedal, through by hypoplastron, upper plate, first bearing, second bearing, first connecting rod, second connecting rod and pushing mechanism constitute, the hypoplastron is connected with the footboard ejector pin of piano, hypoplastron up-and-down motion will send corresponding sound, when being children when using, starts pushing mechanism, pushing mechanism promotes first bearing along slide along the first spout on the hypoplastron, first bearing drives first connecting rod along slide of first spout, first connecting rod drives the second connecting rod passes through the second bearing slides in the second spout, the distance of upper plate between for the hypoplastron changes, can until the foot can the upper plate, avoid changing the mode of the body sitting height and adapt to the footboard, obtain when adjusting footboard and foot fit, the effect of the fitting height between the hand and the key is maintained.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a piano pedal of the present invention;

FIG. 2 is a schematic view of the pushing mechanism of the piano pedal of the present invention constructed with a push rod;

FIG. 3 is a schematic view of the pushing mechanism of FIG. 2;

in the figure: 100-piano pedal, 10-lower plate, 11-first chute, 20-upper plate, 21-second chute, 30-first bearing, 40-second bearing, 50-first connecting rod, 60-second connecting rod, 70-pushing mechanism, 71-servo motor, 72-screw rod, 73-push rod, 74-shaft rod, 75-mounting plate, 751-jack, 76-handle, 77-limit cylinder, 771-bulge, 80-support rod, 90-support column and 110-rotating shaft.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 3, the present invention provides a piano pedal 100, including a lower plate 10, an upper plate 20, a first bearing 30, a second bearing 40, a first connecting rod 50, a second connecting rod 60 and a pushing mechanism 70, wherein the lower plate 10 is connected to pedal posts, the upper plate 20 is located on one side of the lower plate 10 away from the ground, the lower plate 10 has a first sliding slot 11, the upper plate 20 has a second sliding slot 21, the first bearing 30 is connected to the lower plate 10 in a rolling manner and is located in the first sliding slot 11, the second bearing 40 is connected to the upper plate 20 in a rolling manner and is located in the second sliding slot 21, one end of the first connecting rod 50 is hinged to the bearing, the other end of the first connecting rod 50 is hinged to the upper plate 20, one end of the second connecting rod 60 is hinged to the lower plate 10, the other end of the second connecting rod 60 is hinged to the second bearing 40, the pushing mechanism 70 pushes the first bearing 30 to roll in the first sliding chute 11.

In this embodiment, the lower plate 10 is connected to a pedal jack of a piano, the lower plate 10 is stressed and transmitted to the pedal jack to generate a desired sound, when a child sits on the piano stool and uses the piano stool to actuate the pushing mechanism 70, the pushing mechanism 70 can be a hydraulic rod, the pushing mechanism 70 is fixedly mounted on the lower plate 10 and is located at one end of the lower plate 10 far from the second link 60, the first link 50 and the second link 60 are alternately arranged, the pushing mechanism 70 pushes the first bearing 30 to roll from one end of the first sliding slot 11 close to the pushing mechanism 70 to one end of the second link 60 connected to the lower plate 10, the first link 50 pushes the upper plate 20 to rise in height relative to the lower plate 10, and simultaneously drives the second bearing 40 to roll along the second sliding slot 21 in a direction far from the first link 50, the purpose of keeping the upper plate 20 stable by the first link 50 and the second link 60 is achieved, the pushing mechanism 70 is closed until the feet of the user can reach the upper plate 20, the body sitting height is not changed to adapt to the pedal, and the effect of keeping the adaptation height between the hands and the keys when the pedal is adjusted to adapt to the feet is achieved.

Further, the number of the first bearings 30 is two, and the first bearings 30 are respectively located at two sides of the lower plate 10, the piano pedal 100 further includes a support rod 80, the support rod 80 is fixedly connected to the two first bearings 30 and located between the two first bearings 30, and the pushing mechanism 70 is fixedly connected to the support rod 80. In the embodiment of the present invention, the number of the first sliding grooves 11 is two, and the two first bearings 30 are respectively located on two sides of the lower plate 10, the two first bearings 30 are respectively located in the first sliding grooves 11, when the height is adjusted, the pushing mechanism 70 pushes the supporting rod 80, the supporting rod 80 pushes the two first bearings 30 to slide in the first sliding grooves 11, and the pushing mechanism 70 is located between the two first bearings 30, so that the two sides of the adjustment process on duty are more stable.

Further, the pushing mechanism 70 includes a servo motor 71 and a screw rod 72, the servo motor 71 is fixedly connected with the lower plate 10, one end of the screw rod 72 is fixedly connected with the servo motor 71, and the other end of the screw rod 72 is fixedly connected with the support rod 80. In the embodiment of the present invention, the servo motor 71 is started, the output shaft of the servo motor 71 drives the screw rod 72 to rotate, the screw rod 72 converts a rotary motion into a linear motion moving along the first sliding groove 11, the screw rod 72 pushes the support rod 80, the support rod 80 pushes the first bearing 30 to roll along the first sliding direction, the support rod 80 is hinged to the first link 50, and further, the angle between the first link 50 and the support rod 80 is driven to change, so that the height between the upper plate 20 and the lower plate 10 is adjusted.

Further, the number of the second bearings 40 is two, and the second bearings are respectively located on two sides of the upper plate 20, and the piano pedal 100 further includes a supporting column 90, wherein the supporting column 90 is fixedly connected with the two second bearings 40, and is located between the two second bearings 40. In the embodiment of the present invention, the supporting pillar 90 is aware of two second bearings 40, the second bearings 40 roll in the second sliding grooves 21 on two sides of the upper plate 20, the second connecting rod 60 is hinged to the second bearings 40 through the supporting pillar 90, and an angle between the second connecting rod 60 and the upper plate 20 changes to maintain a horizontal state of the upper plate 20, so as to obtain an effect of making two sides more stable during the adjustment process on duty.

Further, the piano pedal 100 further comprises a rotating shaft 110, wherein the rotating shaft 110 penetrates through the first connecting rod 50 and the second connecting rod 60, is rotatably connected with the first connecting rod 50, is rotatably connected with the second connecting rod 60, and is located in the middle of the first connecting rod 50. In the embodiment, when the rotation of the first link 50 and the second link 60 relative to the upper plate 20 and the lower plate 10 is realized by the rotation shaft 110, the first link 50 and the second link 60 rotate around the rotation shaft 110, which provides a smoother effect when adjusting the height.

Further, the pushing mechanism 70 includes a push rod 73, a shaft rod 74, a mounting plate 75, a handle 76 and a limiting cylinder 77, wherein one end of the push rod 73 is hinged to the support rod 80, one end of the shaft rod 74 is rotatably connected to the push rod 73 and is located in the middle of the shaft rod 74, the mounting plate 75 is fixedly connected to the other end of the shaft rod 74, the mounting plate 75 is fixedly connected to the piano frame, the handle 76 is fixedly connected to the push rod 73 and is located at one end of the push rod 73 far away from the support rod 80, and the limiting cylinder 77 is sleeved on the handle 76, is slidably connected to the handle 76, and is fastened to the mounting plate 75. In the embodiment, when the height of the upper plate 20 needs to be adjusted, the limiting cylinder 77 is held by hand rotation, and then rotates relative to the shaft 74, the shaft 74 is fixed on the mounting plate 75, the mounting plate 75 is fixed on the cradle, the limiting cylinder 77 drives the handle 76 to rotate, the handle 76 drives the push rod 73 to rotate around the shaft 74, one end of the push rod 73 pushes the support rod 80, the support rod 80 pushes the first bearing 30 to roll in the first sliding groove 11, the height between the upper plate 20 and the lower plate 10 is changed, until the upper surface of the upper plate 20 contacts with the sole of the foot, the limiting cylinder 77 slides relative to the handle 76 in the direction of the mounting plate 75 until the limiting cylinder 77 is buckled with the mounting plate 75, and the position between the upper plate 20 and the lower plate 10 is fixed, the height adjustment between the upper plate 20 and the lower plate 10 is achieved.

Further, the mounting plate 75 has a plurality of insertion holes 751, the number of insertion holes 751 is a plurality, the plurality of insertion holes 751 are circularly aligned at the base point of the center of the limiting cylinder 77, the limiting cylinder 77 has projections 771, the number of projections 771 is the same as the number of insertion holes 751, and the projections 771 are located on the side of the limiting cylinder 77 facing the mounting plate 75. In the embodiment of the present invention, the limiting cylinder 77 is rotated until the upper plate 20 is driven to perform the position adjustment with respect to the lower plate 10, and after the height of the upper plate 20 is adjusted to a proper position, the limiting cylinder 77 is slid toward the mounting plate 75 until the protrusion 771 is snapped into the insertion hole 751, thereby completing the height fixation of the upper plate 20.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. A pedal for a piano, characterized in that,

the pedal device comprises a lower plate, an upper plate, a first bearing, a second bearing, a first connecting rod, a second connecting rod and a pushing mechanism, wherein the lower plate is connected with a pedal ejector rod, the upper plate is positioned on one side, far away from the ground, of the lower plate, a first sliding groove is formed in the lower plate, a second sliding groove is formed in the upper plate, the first bearing is in rolling connection with the lower plate and is positioned in the first sliding groove, the second bearing is in rolling connection with the upper plate and is positioned in the second sliding groove, one end of the first connecting rod is hinged to the bearing, the other end of the first connecting rod is hinged to the upper plate, one end of the second connecting rod is hinged to the lower plate, the other end of the second connecting rod is hinged to the second bearing, and the pushing mechanism pushes the first bearing to roll in the first sliding groove.

2. The piano pedal of claim 1, wherein said first bearings are two in number and are respectively located on both sides of said lower plate, said piano pedal further comprising a support bar fixedly connected to both said first bearings and located between said first bearings, said urging mechanism being fixedly connected to said support bar.

3. The piano pedal of claim 2, wherein the pushing mechanism comprises a servo motor and a lead screw, the servo motor is fixedly connected to the lower plate, one end of the lead screw is fixedly connected to the servo motor, and the other end of the lead screw is fixedly connected to the support rod.

4. A piano pedal as claimed in claim 3, wherein said second bearings are two in number and are respectively provided on both sides of said upper plate, said piano pedal further comprising a supporting post fixedly connected to and provided between said second bearings.

5. The piano pedal of claim 4, further comprising a rotation shaft penetrating the first link and the second link and rotatably connected to the first link, and rotatably connected to the second link at a position in the middle of the first link.

6. The piano pedal of claim 2, wherein the pushing mechanism comprises a push rod, a shaft rod, a mounting plate, a handle and a limiting cylinder, one end of the push rod is hinged to the support rod, one end of the shaft rod is rotatably connected with the push rod and is located in the middle of the shaft rod, the mounting plate is fixedly connected with the other end of the shaft rod, the mounting plate is fixedly connected with the piano frame, the handle is fixedly connected with the push rod and is located at one end of the push rod, which is far away from the support rod, and the limiting cylinder is sleeved on the handle, is slidably connected with the handle and is buckled with the mounting plate.

7. The piano pedal of claim 6, wherein the mounting plate has a plurality of insertion holes, the plurality of insertion holes are arranged in a circular array at a base point of a center of the restraining cylinder, the restraining cylinder has protrusions, the number of the protrusions corresponds to the number of the insertion holes, and the protrusions are located on a side of the restraining cylinder facing the mounting plate.