CN217640637U - Piano key convenient to dismantle and change - Google Patents

Abstract

The utility model discloses an electronic piano key convenient to dismantle and change, including base and keyboard support, the bounding wall that cross sectional shape is the U-shaped is installed at the top of base, the inboard of bounding wall is equipped with keyboard support, a plurality of key is installed at keyboard support's top, install the fixed plate on keyboard support's the back shrouding, the bolt nose is installed to the bottom symmetry of fixed plate, just the installation through-hole that cross sectional shape is T shape, two is all seted up at the both ends of bounding wall the installation through-hole is relative setting, every all install a screw thread section of thick bamboo through the bearing in the installation through-hole, anti-skidding rotary drum is installed to the one end of a screw thread section of thick bamboo, be provided with the internal thread on the inner wall of a screw thread section of thick bamboo, the inside round pin axle that is equipped with of a screw thread section of thick bamboo. The utility model discloses an installation through-hole, antiskid rotary drum, a screw section of thick bamboo, round pin axle and bolt nose can make keyboard support's dismantlement and change more portably, and the later stage maintenance of being convenient for can improve maintenance efficiency.

Description

Piano key convenient to dismantle and change

Technical Field

The utility model relates to an electric piano field, concretely relates to electric piano key convenient to dismantle and change.

Background

The electric piano is a kind of electroacoustic musical instrument, it is a kind of musical instrument used for replacing the piano in the six seventies of the twentieth century rising, the popular one in the early stage of eighty to ninety years, the sound production principle of the electric piano is to regard keyboard as the on-off switch, form the electrophoresis, once press the key, the internal crystal oscillator begins to work, form the pulse and produce the waveform of certain frequency, through the amplification of the frequency divider, send into the loudspeaker and produce sound, the whole sound production process relies on the simple frequency division analog circuit, therefore the keyboard does not have dynamics and string feeling, the sound is mechanical and monotonous too, need to equip the key when the electric piano uses.

The existing keys are usually connected with an electric piano shell through a plurality of screws, and are inconvenient to disassemble and inconvenient to maintain in later periods.

Therefore, it is necessary to provide a piano key which is easily detachable and replaceable to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an electronic piano key convenient to dismantle and change to solve current key and use a plurality of screws to be connected with electronic piano casing usually, it is inconvenient to dismantle, the problem of the later stage maintenance of not being convenient for.

In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides an electronic piano key convenient to dismantle and change, includes base and keyboard support, the bounding wall that cross sectional shape is the U-shaped is installed at the top of base, the inboard of bounding wall is equipped with keyboard support, a plurality of key is installed at keyboard support's top, install the fixed plate on keyboard support's the back shrouding, the bolt nose is installed to the bottom symmetry of fixed plate, just the mounting through-hole that cross sectional shape is T shape is all seted up at the both ends of bounding wall, two the mounting through-hole is relative setting, every all install a screw thread section of thick bamboo through the bearing in the mounting through-hole, anti-skidding rotary drum is installed to the one end of a screw thread section of thick bamboo, a screw thread section of thick bamboo is linked together with anti-skidding rotary drum, be provided with the internal thread on the inner wall of a screw thread section of thick bamboo, the inside round pin axle that is equipped with of screw thread, be equipped with the external screw thread on the one end outer wall of round pin axle, external thread and internal thread intermeshing, the other end and the bolt nose grafting connection of round pin axle.

Preferably, the base is provided with at least one positioning groove, the positioning groove is internally provided with a guide pillar, the outer wall of the guide pillar is sleeved with a first spring, the bottom of the keyboard support is provided with at least one positioning cylinder, the positioning cylinders correspond to the positioning grooves one by one, the inner wall of each positioning cylinder is provided with a pressing plate, and the center of each pressing plate is provided with a positioning hole matched with the guide pillar.

Preferably, the guide plates are installed on the upper side and the lower side of the pin shaft and are oppositely arranged, the cross section of each guide plate is L-shaped, and each guide plate is provided with a sliding groove.

Preferably, two sliding blocks are installed in the middle of the pin shaft, the sliding blocks are uniformly distributed on the pin shaft along the circumference, and the sliding blocks are connected with the sliding grooves in a sliding mode.

Preferably, the outer wall of the pin shaft is sleeved with a second spring, and the second spring is clamped between the threaded cylinder and the sliding block.

Preferably, an opening is formed in one end, away from the threaded cylinder, of the antiskid rotary cylinder, a limiting plate is connected in the antiskid rotary cylinder in a sliding mode, and one end, away from the bolt nose, of the pin shaft is fixedly connected with the limiting plate.

In the technical scheme, the utility model provides a technological effect and advantage:

1. through the installation of the through hole, the anti-skidding rotary drum, the threaded cylinder, the pin shaft and the bolt nose, the keyboard support can be more conveniently detached and replaced, the later maintenance is facilitated, and the maintenance efficiency can be improved;

2. the keyboard support can be quickly positioned through the positioning cylinder, the pressing plate, the positioning hole, the positioning groove and the guide pillar, so that the mounting efficiency can be improved;

3. the vibration force can be buffered and absorbed through the arranged spring I, and then the probability of damaging the internal parts of the electric piano can be reduced.

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 embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

fig. 3 is an enlarged view of a point a in fig. 2 according to the present invention;

fig. 4 is a cross-sectional view of the present invention;

fig. 5 is an enlarged view of the position B in fig. 4.

Description of the reference numerals:

1. a base; 2. keys of keys; 3. a keyboard support; 4. enclosing plates; 5. mounting a through hole; 6. a fixing plate; 7. a latch nose; 8. positioning a groove; 9. a guide post; 10. a first spring; 11. a threaded barrel; 12. an anti-slip drum; 13. a limiting plate; 14. a pin shaft; 15. a slider; 16. a second spring; 17. a guide plate; 18. a chute; 19. a positioning cylinder; 20. and (7) pressing a plate.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

The utility model provides a fender key convenient to dismantle and change as shown in fig. 1-5, including base 1 and keyboard support 3, cross sectional shape is the bounding wall 4 of U-shaped is installed at the top of base 1, the inboard of bounding wall 4 is equipped with keyboard support 3, a plurality of key 2 is installed at keyboard support 3's top, install fixed plate 6 on keyboard support 3's the back shrouding, cotter pin nose 7 is installed to the bottom symmetry of fixed plate 6, just cross sectional shape is the installation through-hole 5 of T shape, two all seted up at the both ends of bounding wall 4 installation through-hole 5 is relative setting, and the diameter of 5 main aspects of installation through-hole should be greater than the diameter of antiskid rotary drum 12, every install a screw section of thick bamboo 11 through the bearing in the installation through-hole 5, antiskid rotary drum 12 is installed to the one end of a screw section of thick bamboo 11, a screw section of thick bamboo 11 is linked together with antiskid rotary drum 12, be provided with the internal thread on the inner wall of a screw section of thick bamboo 11, the inside round pin axle 14 that is equipped with round pin axle 14, be equipped with the external screw thread on the one end outer wall of round pin axle 14, external screw thread and internal thread intermeshing with the connection of bolt 7 of cotter pin axle.

Furthermore, in the above technical solution, at least one positioning groove 8 is formed in the base 1, a guide post 9 is installed in the positioning groove 8, a first spring 10 is sleeved on the outer wall of the guide post 9, at least one positioning cylinder 19 is installed at the bottom of the keyboard support 3, the positioning cylinders 19 correspond to the positioning grooves 8 one to one, a pressing plate 20 is installed on the inner wall of the positioning cylinder 19, a positioning hole matched with the guide post 9 is formed in the center of the pressing plate 20, the positioning hole is aligned with the guide post 9, the keyboard support 3 moves down, the positioning cylinder 19 is inserted into the positioning groove 8, the first spring 10 is squeezed by the pressing plate 20, the keyboard support 3 is rapidly positioned, the vibration force can be buffered and absorbed by the first spring 10, and the probability of damage to internal components of the electric piano can be reduced.

Further, in above-mentioned technical scheme, deflector 17, two are all installed to the last downside of round pin axle 14 deflector 17 is relative setting, deflector 17's cross-section is L shape, sets deflector 17 to L shape, and it is more convenient to enable to fix, spout 18 has been seted up on deflector 17, the mid-mounting of round pin axle 14 has two sliders 15, slider 15 is epaxial 14 along the circumference equipartition, just slider 15 and 18 sliding connection of spout, and slider 15 and 18's cooperation of spout play direction and limiting displacement.

Further, in the above technical scheme, a second spring 16 is sleeved on the outer wall of the pin shaft 14, and the second spring 16 is clamped between the threaded cylinder 11 and the slider 15 to play a role in buffering, so that the occurrence of wire sliding can be effectively avoided.

Further, in the above technical solution, an opening is provided at an end of the anti-slip rotary drum 12 away from the threaded drum 11, a limiting plate 13 is slidably connected in the anti-slip rotary drum 12, and an end of the pin 14 away from the pin nose 7 is fixedly connected to the limiting plate 13, so that the pin 14 is limited by the limiting plate 13.

This practical theory of operation:

referring to the attached drawings 1, 2 and 3 of the specification, when the keyboard support 3 needs to be disassembled, the anti-skid rotary drum 12 is rotated to enable the threaded drum 11 to rotate, the pin shaft 14 drives the limiting plate 13 to move outwards by means of threaded engagement until the pin shaft 14 is separated from the pin nose 7, the keyboard support 3 can be taken down, during installation, the positioning hole is aligned with the guide pillar 9, the keyboard support 3 is moved downwards, the positioning drum 19 is inserted into the positioning groove 8, the keyboard support 3 is quickly positioned, then the anti-skid rotary drum 12 is rotated reversely, the pin shaft 14 drives the limiting plate 13 to move inwards until the pin shaft 14 is inserted into the pin nose 7, and then the installation of the keyboard support 3 can be completed;

referring to the attached fig. 1, 4 and 5 of the specification, when in use, the vibration force can be absorbed in a buffering way through the arranged first spring 10, and the probability of damaging the internal parts of the electric piano can be further reduced.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims (6)

1. The utility model provides an electric piano key convenient to dismantle and change, includes base (1) and keyboard support (3), its characterized in that: the key assembly is characterized in that a coaming (4) with a U-shaped cross section is installed at the top of the base (1), a keyboard support (3) is arranged on the inner side of the coaming (4), a plurality of keys (2) are installed at the top of the keyboard support (3), a fixing plate (6) is installed on a rear sealing plate of the keyboard support (3), bolt lugs (7) are symmetrically installed at the bottom of the fixing plate (6), installation through holes (5) with a T-shaped cross section are formed in the two ends of the coaming (4), the installation through holes (5) are oppositely arranged, each installation through hole (5) is internally provided with a threaded cylinder (11) through a bearing, an anti-skidding rotary cylinder (12) is installed at one end of each threaded cylinder (11), each threaded cylinder (11) is communicated with the anti-skidding rotary cylinder (12), an inner thread is arranged on the inner wall of each threaded cylinder (11), a pin shaft (14) is arranged inside the threaded cylinder (11), an outer thread is arranged on the outer wall of one end of each pin (14), the outer thread is meshed with the inner thread, and the other end of the pin (14) is connected with the bolt lugs (7) in a plugging connection mode.

2. An electric piano key convenient to disassemble and replace according to claim 1, wherein: the keyboard with the locating function is characterized in that at least one locating groove (8) is formed in the base (1), guide pillars (9) are installed in the locating grooves (8), a first spring (10) is sleeved on the outer wall of each guide pillar (9), at least one locating cylinder (19) is installed at the bottom of the keyboard support (3), the locating cylinders (19) correspond to the locating grooves (8) one by one, a pressing plate (20) is installed on the inner wall of each locating cylinder (19), and locating holes matched with the guide pillars (9) are formed in the center of each pressing plate (20).

3. An electric piano key convenient to disassemble and replace according to claim 1, wherein: deflector (17) are all installed to the last downside of round pin axle (14), two deflector (17) are relative setting, the cross-section of deflector (17) is L shape, spout (18) have been seted up on deflector (17).

4. A key of an electric piano easy to disassemble and replace as claimed in claim 3, wherein: two sliding blocks (15) are installed in the middle of the pin shaft (14), the sliding blocks (15) are evenly distributed on the pin shaft (14) along the circumference, and the sliding blocks (15) are connected with the sliding grooves (18) in a sliding mode.

5. An electric piano key convenient to detach and replace according to claim 4, wherein: the outer wall of the pin shaft (14) is sleeved with a second spring (16), and the second spring (16) is clamped between the threaded cylinder (11) and the sliding block (15).

6. An electric piano key convenient to disassemble and replace as claimed in claim 1, wherein: the one end that screw thread section of thick bamboo (11) was kept away from in antiskid rotary drum (12) is equipped with the opening, sliding connection has limiting plate (13) in antiskid rotary drum (12), just the one end and limiting plate (13) fixed connection of cotter nose (7) are kept away from in round pin axle (14).

Images