CN215304602U

CN215304602U - Display device for piano keyboard

Info

Publication number: CN215304602U
Application number: CN202121238038.4U
Authority: CN
Inventors: 徐菲菲
Original assignee: Qingdao Huanghai University
Current assignee: Qingdao Huanghai University
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2021-12-28
Anticipated expiration: 2031-06-03

Abstract

The application discloses a display device for a piano keyboard, which comprises a mounting plate, a positioning mechanism, an adjusting mechanism, a tilting mechanism and a lifting mechanism; the positioning mechanism comprises a moving frame and a positioning plate, sliding rods are arranged in inner cavities of two ends of the positioning plate, a first sliding sleeve is sleeved on the surface of each sliding rod, a second spring is fixedly connected to one side of each first sliding sleeve, the second spring is sleeved on the surface of each sliding rod, the top end of each first sliding sleeve penetrates through the positioning plate and is fixedly connected with the moving frame, a thread positioning rod is arranged at the top of each moving frame, and the bottom end of each thread positioning rod penetrates through the moving frame. This application easy operation can conveniently grasp piano keyboard both sides through first sliding sleeve, slide bar, second spring, removal frame and screw thread locating lever, is fit for the different grade type keyboard moreover, can improve the fastness of location through two locating plates, can adjust the interval of two locating plates through slide rail, first slider, motor, backup pad, second sliding sleeve and two-way lead screw moreover.

Description

Display device for piano keyboard

Technical Field

The application relates to the field, especially, display device for piano keyboard.

Background

The front body of the piano is a plucked ancient piano, also called a feather keypiano. It is basically the same as the internal principle of piano, and is characterized by that in the interior of piano body a sound board and several strings are mounted. The difference is that the piano hammers strike strings to produce sound, and the plucked ancient piano uses the pluckers of the feather tube to pluck the strings to produce sound.

Present electronic piano is more and more common, and when the keyboard to the piano is demonstrateed, general display device is inconvenient fixes a position the keyboard of different grade type, is demonstrateing moreover, the condition that drops still appears easily, leads to the keyboard impaired. Therefore, a display device for a piano keyboard is provided to solve the above problems.

Disclosure of Invention

The display device for the piano keyboard is provided in the embodiment and used for solving the problem of poor positioning effect on the piano keyboard in the prior art.

According to one aspect of the application, a display device for a piano keyboard is provided, which comprises a mounting plate, a positioning mechanism, an adjusting mechanism, a tilting mechanism and a lifting mechanism;

the positioning mechanism comprises a moving frame and a positioning plate, sliding rods are arranged in inner cavities of two ends of the positioning plate, a first sliding sleeve is sleeved on the surface of each sliding rod, a second spring is fixedly connected to one side of each first sliding sleeve, the second spring is sleeved on the surface of each sliding rod, the top end of each first sliding sleeve penetrates through the positioning plate and is fixedly connected with the moving frame, a thread positioning rod is arranged at the top of each moving frame, and the bottom end of each thread positioning rod penetrates through the moving frame.

Further, adjustment mechanism includes backup pad and slide rail, the inside slide rail that all installs of backup pad top both sides recess, slide rail surface sliding connection first slider, first slider top rigid coupling locating plate bottom, the backup pad inner chamber is equipped with two-way lead screw, two-way lead screw both ends surface all overlaps and has the second sliding sleeve, backup pad rigid coupling locating plate is run through on second sliding sleeve top.

Further, tilt mechanism includes baffle and mounting panel, inside second telescopic link and the electric putter of being equipped with respectively of mounting panel top recess, second telescopic link and electric putter top and bottom are through second connecting block difference joint support board bottom and mounting panel, baffle bottom rigid coupling locating plate, the first telescopic link of baffle top bottom rigid coupling, first telescopic link bottom rigid coupling extrusion pad.

Further, elevating system includes connecting rod and support column, support column inner chamber bottom installation hydraulic push rod, the support column rigid coupling mounting panel is run through on hydraulic push rod top, the spout is all seted up to mounting panel bottom both sides, spout internally mounted second slider, the support column both sides all are equipped with the connecting rod, second slider and support column are connected respectively through first connecting block in connecting rod top and bottom.

Further, the movable frame is of an L-shaped structure, the threaded positioning rod is connected with the movable frame through threads, and a rubber pad is arranged at the bottom of the threaded positioning rod.

Further, both ends of the sliding rod are fixedly connected with the inner wall of the positioning plate, and the sliding rod is connected with the first sliding sleeve in a sliding mode.

Further, a motor is installed on one side of the supporting plate and connected with a bidirectional screw rod, one end of the bidirectional screw rod is rotatably connected with the inner wall of the supporting plate, and the bidirectional screw rod is connected with the second sliding sleeve through threads.

Further, the second telescopic rod and the first telescopic rod are formed by mutually sleeving two pipes with different pipe diameters, the surface of the first telescopic rod is sleeved with a first spring, and the top and the bottom of the second telescopic rod and the top and the bottom of the electric push rod are rotatably connected with a second connecting block.

Furthermore, the bottom of the supporting column is fixedly connected to the center of the top of the bottom plate, and anti-skid grains are arranged at the bottom of the bottom plate.

Furthermore, the connecting rod is connected with the first connecting block in a rotating mode, the second sliding block is connected with the sliding groove in a sliding mode, and the width of the top end of the second sliding block is larger than the width of a notch at the bottom of the sliding groove.

Through the above-mentioned embodiment of this application, adopted positioning mechanism, solved the poor problem of piano keyboard location effect, gained the effect that can not drop when being convenient for guarantee piano keyboard show.

Drawings

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

FIG. 1 is a schematic perspective view of one embodiment of the present application;

FIG. 2 is a schematic view of a mobile gantry according to an embodiment of the present application;

FIG. 3 is a schematic view of a mounting plate according to an embodiment of the present application.

In the figure: 1. first sliding sleeve, 2, remove the frame, 3, screw thread locating lever, 4, the extrusion pad, 5, the baffle, 6, first spring, 7, first telescopic link, 8, the second spring, 9, the slide bar, 10, the locating plate, 11, first slider, 12, the second sliding sleeve, 13, the backup pad, 14, the slide rail, 15, first connecting block, 16, the second connecting block, 17, the mounting panel, 18, the second telescopic link, 19, hydraulic push rod, 20, two-way lead screw, 21, the motor, 22, electric putter, 23, the spout, 24, the second slider, 25, the connecting rod, 26, the support column, 27, the bottom plate.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

The display device in the present embodiment may be applied to various electric piano keyboards, for example, the following electric piano keyboard is provided in the present embodiment, and the display device in the present embodiment may be used to display the following electric piano keyboard.

An electric piano keyboard comprising: a fixed bracket and eighty-eight keys; the keys include fifty-two white keys and thirty-six black keys; the key include: the key comprises a key support, a key, a reset pressure spring, a hinge seat, a touch transmission rod, a touch component and a sound component, wherein the rear end of the key support is connected with the rear end of a fixed support through a screw; the touch component is provided with a front transverse plate; the front end of the key is provided with a limit hook positioned on the lower side of the front transverse plate.

The touch sensing assembly comprises: the device comprises a rear side plate, a front side plate, a lower plate, a rear transverse plate, a support plate, a button limiting block, a touch feeling adjusting block, a lower contact block, a rear damping limiting block and a front damping limiting block, wherein the lower plate is integrally connected with the lower end of the rear side plate and the lower end of the front side plate respectively; the rear end of the front transverse plate and the upper end of the front side plate are integrally connected; the lower end of the support plate is integrally connected with the rear end of the rear transverse plate or the front end of the front transverse plate; the lower plate is connected with the upper end of the fixed bracket through a screw; the rear side plate is provided with a side hole; the lower end of the key is provided with a touch strip; the tactile transmission lever includes: the front side of the upper end of the lower end of the upper end of the lower end of the upper end of the lower cross rod; the front end of the lower cross bar is provided with an upper contact block; the front end of the lower cross rod penetrates through the side hole, and the upper contact block is opposite to the lower contact block. In the embodiment, when the key is a white key, the lower end of the support plate and the rear end of the rear transverse plate are integrally connected; when the press key is a black key, the lower end of the support plate and the front end of the front transverse plate are integrally connected.

The touch sense adjusting block is made of plastic; the rear damping limiting block and the front damping limiting block are made of felts.

The pronunciation subassembly include: the key comprises a key body, a key press, a pressing column, an elastic block and a control circuit board, wherein the pressing column is arranged at the lower end of the key, the elastic block is bonded with the lower end of the pressing column, the lower end of the elastic block is provided with two upper power-on contacts and a power-on strip which is bonded with the lower end of the elastic block, and the control circuit board is provided with two lower power-on contacts and is connected with a lower end screw of the key support; the key support is provided with a through hole opposite to the elastic block; the two upper power-on contacts correspond to and are opposite to the two lower power-on contacts one by one.

In this embodiment, the rear end of the key support is provided with a protrusion and a pin shaft penetrating through the protrusion; the rear end of the key is provided with a fastener counter bore and a key fastener positioned in the fastener counter bore; the lower end of the key buckle is hinged with the pin shaft. The key support is provided with a lower supporting block positioned on the front side of the bulge and a lower counter bore arranged at the upper end of the lower supporting block; the key is provided with an upper supporting block positioned on the front side of the fastener counter bore and an upper counter bore arranged at the lower end of the upper supporting block; two ends of the reset pressure spring respectively press the bottom surface of the lower counter bore and the bottom surface of the upper counter bore.

Of course, the present embodiment can also be used to display other structures of electronic piano keyboards. Here, description is not repeated, and the display device according to the embodiment of the present application is described below.

Referring to fig. 1-3, a display device for a piano keyboard includes a mounting plate 17, a positioning mechanism, an adjusting mechanism, a tilting mechanism and a lifting mechanism;

positioning mechanism is including removing frame 2 and locating plate 10, locating plate 10 both ends inner chamber all is equipped with slide bar 9, slide bar 9 surface cover has first sliding

sleeve

1, 1 one side rigid coupling second spring 8 of first sliding sleeve, 8 covers in the slide bar 9 surface of second spring, 1 top of first sliding sleeve runs through locating plate 10 rigid coupling and removes frame 2, it is equipped with screw thread locating lever 3 to remove 2 tops of frame, 3 bottoms of screw thread locating lever run through and remove frame 2, can fix a position the piano keyboard, conveniently demonstrate.

The adjusting mechanism comprises a supporting plate 13 and sliding rails 14, the sliding rails 14 are mounted inside grooves on two sides of the top of the supporting plate 13, the surface of each sliding rail 14 is connected with a first sliding block 11 in a sliding mode, the top of each first sliding block 11 is fixedly connected with the bottom of a positioning plate 10, a bidirectional screw rod 20 is arranged in an inner cavity of the supporting plate 13, the surfaces of two ends of each bidirectional screw rod 20 are sleeved with a second sliding sleeve 12, the top end of each second sliding sleeve 12 penetrates through the supporting plate 13 and is fixedly connected with the positioning plate 10, adjustment can be conveniently carried out according to the size of a piano keyboard, and the piano keyboard can be conveniently positioned; the tilting mechanism comprises a baffle 5 and an installation plate 17, a second telescopic rod 18 and an electric push rod 22 are respectively arranged in a groove in the top of the installation plate 17, the tops and bottoms of the second telescopic rod 18 and the electric push rod 22 are respectively connected with the bottom of a support plate 13 and the installation plate 17 through a second connecting block 16, the bottom of the baffle 5 is fixedly connected with a positioning plate 10, the bottom of the top end of the baffle 5 is fixedly connected with a first telescopic rod 7, and the bottom of the first telescopic rod 7 is fixedly connected with an extrusion pad 4, so that a piano keyboard can be better displayed; the lifting mechanism comprises a connecting rod 25 and a supporting column 26, a hydraulic push rod 19 is installed at the bottom of an inner cavity of the supporting column 26, the top end of the hydraulic push rod 19 penetrates through the supporting column 26 and is fixedly connected with the mounting plate 17, sliding grooves 23 are formed in two sides of the bottom of the mounting plate 17, second sliding blocks 24 are installed inside the sliding grooves 23, the connecting rod 25 is arranged on two sides of the supporting column 26, the top and the bottom of the connecting rod 25 are respectively connected with the second sliding blocks 24 and the supporting column 26 through first connecting blocks 15, and the piano keyboard can be conveniently adjusted to a proper height to be displayed; the movable frame 2 is of an L-shaped structure, the threaded positioning rod 3 is connected with the movable frame 2 through threads, and a rubber pad is arranged at the bottom of the threaded positioning rod 3, so that the positioning stability can be improved; two ends of the sliding rod 9 are fixedly connected with the inner wall of the positioning plate 10, and the sliding rod 9 is connected with the first sliding sleeve 1 in a sliding manner, so that the moving frame 2 is driven to move conveniently; a motor 21 is installed on one side of the supporting plate 13, the motor 21 is connected with a bidirectional screw rod 20, one end of the bidirectional screw rod 20 is rotatably connected with the inner wall of the supporting plate 13, the bidirectional screw rod 20 is connected with the second sliding sleeve 12 through threads, and the distance between the two positioning plates 10 can be adjusted; the second telescopic rod 18 and the first telescopic rod 7 are formed by sleeving two pipe bodies with different pipe diameters, the first spring 6 is sleeved on the surface of the first telescopic rod 7, the tops and the bottoms of the second telescopic rod 18 and the electric push rod 22 are rotatably connected with the second connecting block 16, and the angle of the supporting plate 13 can be adjusted; the bottom of the supporting column 26 is fixedly connected to the center of the top of the bottom plate 27, and anti-skid grains are arranged at the bottom of the bottom plate 27, so that an anti-skid effect can be achieved; connecting rod 25 rotates with first connecting block 15 and is connected, second slider 24 and spout 23 sliding connection, and 24 top widths of second slider are greater than spout 23 bottom breach width, can play the reinforcement guide effect when flexible.

When the keyboard is used, electrical components in the application are externally connected with a power supply and a control switch, the distance between two positioning plates 10 is adjusted according to the size of the keyboard, a motor 21 can drive a bidirectional screw rod 20 to rotate, two second sliding sleeves 12 on the surface of the bidirectional screw rod 20 can move oppositely or oppositely, a first sliding block 11 at the bottom of the positioning plate 10 can also move on the surface of a sliding rail 14, the stability of movement is ensured, the keyboard is conveniently positioned, the first sliding sleeves 1 can be driven to slide on the surface of the sliding rail 9 through the elasticity of a second spring 8, so that two moving frames 2 at the top of the positioning plate 10 can clamp two sides of the keyboard, and a rubber pad at the bottom of a threaded positioning rod 3 can be pressed against the top of the keyboard by screwing the threaded positioning rod 3, and the keyboard is positioned;

when the keyboard is displayed, the piano keyboard is in a tilting state when being matched with the second telescopic rod 18 and the second connecting block 16 through the extension and contraction of the electric push rod 22, the display effect is convenient to improve, the baffle 5 arranged on one side of the positioning plate 10 for positioning the bottom end of the piano keyboard can play a role in blocking, the positioning effect on the keyboard can be improved by being matched with the first spring 6, the first telescopic rod 7 and the extrusion pad 4, and the condition that the piano keyboard slides down when being in the tilting state can be avoided;

the lifting of the hydraulic push rod 19 can control the display height, the connecting rod 25 is connected with the second sliding block 24 through the first connecting block 15, and the second sliding block 24 can slide in the sliding groove 23, so that the reinforcing stability is facilitated, and the shaking condition is avoided during the lifting.

The application has the advantages that:

1. the piano keyboard positioning device is simple in operation, the two sides of the piano keyboard can be conveniently clamped through the first sliding sleeve, the sliding rod, the second spring, the moving frame and the threaded positioning rod, the piano keyboard positioning device is suitable for keyboards of different types, positioning firmness can be improved through the two positioning plates, the distance between the two positioning plates can be adjusted through the sliding rail, the first sliding block, the motor, the supporting plate, the second sliding sleeve and the bidirectional screw rod, and the piano keyboard positioning device is convenient to adjust to a proper position to position the keyboard;

2. the piano keyboard display device is reasonable in structure, the piano keyboard can be in an inclined state through the second telescopic rod, the second connecting block and the electric push rod, the piano keyboard can be displayed better, and the keyboard can be prevented from sliding off when being displayed through the extrusion pad, the baffle plate, the first telescopic rod and the first spring;

3. this application can promote the mounting panel through hydraulic push rod and go up and down, is convenient for adjust suitable height, and at the lift in-process, spout, second slider, connecting rod and first connecting block can play the reinforced effect of direction, appear the condition of rocking when avoiding going up and down.

It is well within the skill of those in the art to implement, without undue experimentation, the present application is not directed to software and process improvements, as they relate to circuits and electronic components and modules.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a display device for piano keyboard which characterized in that: comprises a mounting plate (17), a positioning mechanism, an adjusting mechanism, a tilting mechanism and a lifting mechanism;

positioning mechanism is including removing frame (2) and locating plate (10), locating plate (10) both ends inner chamber all is equipped with slide bar (9), slide bar (9) surface cover has first sliding sleeve (1), first sliding sleeve (1) one side rigid coupling second spring (8), second spring (8) cover is on slide bar (9) surface, locating plate (10) rigid coupling removal frame (2) is run through on first sliding sleeve (1) top, remove frame (2) top and be equipped with screw thread locating lever (3), screw thread locating lever (3) bottom is run through and is removed frame (2).

2. The piano keyboard display device of claim 1, wherein: adjustment mechanism includes backup pad (13) and slide rail (14), inside slide rail (14) of all installing of backup pad (13) top both sides recess, slide rail (14) surface sliding connection first slider (11), first slider (11) top rigid coupling locating plate (10) bottom, backup pad (13) inner chamber is equipped with two-way lead screw (20), two-way lead screw (20) both ends surface all overlaps there is second sliding sleeve (12), backup pad (13) rigid coupling locating plate (10) is run through on second sliding sleeve (12) top.

3. The piano keyboard display device of claim 1, wherein: the tilting mechanism comprises a baffle (5) and a mounting plate (17), wherein a second telescopic rod (18) and an electric push rod (22) are arranged inside a groove in the top of the mounting plate (17), the second telescopic rod (18) and the electric push rod (22) are connected with the bottom of the mounting plate (13) and the mounting plate (17) respectively through a second connecting block (16), the baffle (5) is fixedly connected with a positioning plate (10) at the bottom of the baffle (5), the baffle (5) is fixedly connected with a first telescopic rod (7) at the bottom of the top of the baffle (5), and the first telescopic rod (7) is fixedly connected with an extrusion pad (4) at the bottom of the first telescopic rod (7).

4. The piano keyboard display device of claim 1, wherein: elevating system includes connecting rod (25) and support column (26), support column (26) inner chamber bottom installation hydraulic rod (19), support column (26) rigid coupling mounting panel (17) is run through on hydraulic rod (19) top, spout (23) are all seted up to mounting panel (17) bottom both sides, spout (23) internally mounted second slider (24), support column (26) both sides all are equipped with connecting rod (25), second slider (24) and support column (26) are connected respectively through first connecting block (15) in connecting rod (25) top and bottom.

5. The piano keyboard display device of claim 1, wherein: the movable frame (2) is of an L-shaped structure, the threaded positioning rod (3) is connected with the movable frame (2) through threads, and a rubber pad is arranged at the bottom of the threaded positioning rod (3).

6. The piano keyboard display device of claim 1, wherein: both ends of the sliding rod (9) are fixedly connected with the inner wall of the positioning plate (10), and the sliding rod (9) is connected with the first sliding sleeve (1) in a sliding mode.

7. The piano keyboard display device of claim 2, wherein: support plate (13) one side installation motor (21), motor (21) are connected with two-way lead screw (20), two-way lead screw (20) one end is rotated with support plate (13) inner wall and is connected, two-way lead screw (20) are through threaded connection second sliding sleeve (12).

8. A piano keyboard display device according to claim 3, wherein: the second telescopic rod (18) and the first telescopic rod (7) are formed by mutually sleeving two pipes with different pipe diameters, a first spring (6) is sleeved on the surface of the first telescopic rod (7), and the top and the bottom of the second telescopic rod (18) and the electric push rod (22) are rotatably connected with a second connecting block (16).

9. The piano keyboard display device of claim 4, wherein: the bottom of the supporting column (26) is fixedly connected to the center of the top of the bottom plate (27), and anti-slip grains are arranged at the bottom of the bottom plate (27).

10. The piano keyboard display device of claim 4, wherein: the connecting rod (25) is rotatably connected with the first connecting block (15), the second sliding block (24) is slidably connected with the sliding groove (23), and the width of the top end of the second sliding block (24) is larger than the width of a notch at the bottom of the sliding groove (23).