CN112893217A

CN112893217A - Piano key electric cleaner

Info

Publication number: CN112893217A
Application number: CN202110186678.3A
Authority: CN
Inventors: 郭芳; 崔一鸣; 田甜; 王洁清
Original assignee: Luoyang Institute of Science and Technology
Current assignee: Luoyang Institute of Science and Technology
Priority date: 2021-02-18
Filing date: 2021-02-18
Publication date: 2021-06-04
Anticipated expiration: 2041-02-18
Also published as: CN112893217B

Abstract

A piano key electric cleaner comprises a handle, a gap cleaning component and a surface cleaning component; the clearance cleaning assembly and the surface cleaning assembly comprise connecting rods, and the connecting rods are detachably connected with the handle; the clearance cleaning assembly comprises a first shell fixedly connected with the connecting rod, a plurality of guide pipes are rotatably arranged in the first shell, one ends of the guide pipes extend out of the first shell, a plurality of first through holes are formed in the extending ends of the guide pipes, a sponge sleeve is fixedly sleeved on the extending ends of the guide pipes, a plurality of second through holes correspondingly communicated with the first through holes are formed in the sponge sleeve, the other ends of all the guide pipes are communicated with an air outlet pipe together, the air outlet pipe penetrates through the first shell, and an air outlet fan is arranged in the air outlet pipe; the surface cleaning assembly comprises a second shell fixedly connected with the connecting rod, an annular sponge strip and a driving unit used for driving the sponge strip to rotate are arranged in the second shell, and one part of the sponge strip extends out of the second shell. The cleaning process is simpler and quicker, and the cleaning effect is better.

Description

Piano key electric cleaner

Technical Field

The invention relates to the field of musical instrument maintenance equipment, in particular to an electric cleaner for piano keys.

Background

A piano is a keyboard instrument derived from western classical music. The piano keyboard consists of keys and a metal string soundboard. The range of the musical range is wide, and almost all musical tones in the musical tone system are included. The piano is commonly used for solo, repetition, accompaniment and other performances, and is very convenient for composing music and rehearsing music. The player drives a small mallet covered with a felt in the piano by pressing keys on the keyboard, and then strikes the steel wire strings to make sound. Because of its wide range and beautiful timbre, piano is called the king of musical instrument, and is called three world instruments together with violin and classical guitar. Many people therefore want to learn a piano.

As shown in fig. 1, a known piano key mainly includes a white key 1 and a black key 7, wherein a ledge 2 extending horizontally forward is integrally connected to a front end of the white key 1, a first gap 5 is left between white key side end walls 4 of any two adjacent white keys 1, a second gap 6 is left between the white key 1 and the black key 7, and a black key front end wall 8 of the black key 7 is an arc surface.

When practicing the piano, because there is sweat oil etc. in the hand, leave oil stain sweat stain easily on the key, together gather on the key along with the dust, not only influence pleasing to the eye, breed the bacterium easily moreover, the dirt that accumulates simultaneously if fall into the inside tone quality etc. that still easily leads to the fact adverse effect to piano itself of piano, therefore the key of piano needs often clean. In the prior art, keys are cleaned mainly by manually scrubbing with cleaning cloth, but dead corners are easily left during manual scrubbing due to the existence of the first gap 5 and the second gap 6, and the transition between the convex edge 2 and the front end wall 3 of the white key is very difficult to clean in place.

In order to solve the disadvantage of the manual scrubbing, chinese patent 201810359339.9 discloses a "piano key cleaning device" comprising a wetting mechanism for performing a wetting treatment on the surface of a key and a cleaning mechanism for performing a cleaning treatment on the wetted surface of the key. The wetting mechanism is used for pretreating the surface of the key, firstly, a cleaning agent is applied to the surface of the key, then, the key is kept stand for a period of time, and after the cleaning agent softens and peels off dirt on the surface of the key, a mixture of the cleaning agent and the dirt is formed. The cleaning mechanism is used for cleaning the mixture of the pre-treated detergent and dirt from the surface of the key. The device needs many times adjustment device form when using, and the cleaning process is loaded down with trivial details.

Disclosure of Invention

In order to solve the defects in the prior art, the invention provides the electric piano key cleaner, the sponge sleeve or the sponge strip is directly contacted with the piano keys by moving the handle in use, the form does not need to be changed frequently, the cleaning process is simpler and faster, and the cleaning effect is better.

In order to achieve the purpose, the invention adopts the specific scheme that: a piano key electric cleaner comprises a handle, a gap cleaning component and a surface cleaning component; the gap cleaning assembly and the surface cleaning assembly both comprise connecting rods, and the connecting rods are detachably connected with the handle; the clearance cleaning assembly comprises a first shell fixedly connected with the connecting rod, a plurality of guide pipes are rotatably arranged in the first shell, one ends of the guide pipes extend out of the first shell, a plurality of first through holes are formed in the extending ends of the guide pipes, a sponge sleeve is fixedly sleeved on the extending ends of the guide pipes, a plurality of second through holes correspondingly communicated with the first through holes are formed in the sponge sleeve, the other ends of all the guide pipes are communicated with an air outlet pipe together, the air outlet pipe penetrates through the first shell, and an air outlet fan is arranged in the air outlet pipe; the surface cleaning assembly comprises a second shell fixedly connected with the connecting rod, an annular sponge strip and a driving unit used for driving the sponge strip to rotate are arranged in the second shell, and one part of the sponge strip extends out of the second shell.

As a preferred scheme, the cavity has been seted up to the inside of handle, fixedly in the cavity being provided with the battery, the one end of handle is inlayed and is equipped with the joint that charges with battery electric connection, the jack with the cavity intercommunication is seted up to the other one end of handle, fixedly in the jack be provided with power supply connector, be provided with two on the power supply connector with battery electric connection's power supply contact, two locating holes corresponding with the power supply contact are seted up to the one end of connecting rod, are provided with in the locating hole and supply power contact assorted receiving contact.

As a preferred scheme, the handle is fixedly connected with two elastic pieces, the two elastic pieces are respectively located on two sides of the jack, one side of the elastic piece close to the jack is fixedly connected with a clamping block, the connecting rod is provided with two clamping grooves corresponding to the clamping block, one side of the elastic piece far away from the jack is fixedly connected with a wing plate, and the wing plate is provided with an operation hole.

As an optimal scheme, the fixed first motor that is provided with in the first casing, first motor with the fan of giving vent to anger all with two receive electrical contact electric connection, first motor drive is connected with the driving shaft, still rotates in the first casing and is provided with the driven shaft, and the driven shaft is parallel to each other with the driving shaft, and around being equipped with first belt jointly on driving shaft and the driven shaft, fixed cover is equipped with transmission sleeve on the pipe, and transmission sleeve sets up at first belt inboard and closely laminates with first belt, and spacing ring of each fixedly connected with in transmission sleeve's both ends, first belt are located between two spacing rings.

As a preferred scheme, a partition plate and a mounting plate are fixedly arranged in the first shell, a gas outlet is formed in one side of the partition plate and communicated with the gas outlet pipe, a plurality of gas inlets are formed in the other side of the partition plate and communicated with the gas outlet through gas guide channels, a plurality of bearings are embedded in the mounting plate, the guide pipes are correspondingly arranged in inner rings of the bearings one by one, the guide pipes are also communicated with conical transition sections, small ends of the transition sections are communicated with the guide pipes, and large ends of the transition sections are correspondingly inserted into the gas inlets.

As a preferred scheme, the drive unit includes a second motor fixedly arranged in the second housing, the second motor is electrically connected to the two power receiving contacts, the second motor is connected to the drive shaft in a driving manner, a second belt is wound around all the drive shafts together, and the sponge strip is fixedly connected to the second belt.

As a preferable scheme, the outside of the second housing is fixedly connected with a convex block, the convex block is in a step shape, the bottom surface of the convex block is fixedly connected with the second housing, and the second belt bypasses the side surface and the top surface of the convex block.

As a preferred scheme, set up a plurality of dirty grooves of collection along length direction evenly distributed on the sponge strip, the inner wall in dirty groove of collection is including relative first inclined plane and the second inclined plane that sets up, and the contained angle between the moving direction of first inclined plane and second inclined plane and sponge strip is the acute angle.

Has the advantages that: when the multifunctional keyboard is used, the sponge sleeve or the sponge strip is directly contacted with the keys by moving the handle, the form does not need to be changed frequently, the cleaning process is simpler and faster, and the cleaning effect is better.

Drawings

FIG. 1 is a schematic view of the structure of a piano keyboard;

FIG. 2 is a schematic view of the handle construction;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a schematic structural view of a gap cleaning mechanism;

FIG. 5 is a schematic view of the structure of a catheter and sponge sleeve;

FIG. 6 is a schematic structural view of the surface cleaning mechanism;

fig. 7 is a schematic view of the structure of the sponge strip.

Reference numerals: 1-white key, 2-convex edge, 3-white key front end wall, 4-white key side end wall, 5-first gap, 6-second gap, 7-black key, 8-black key front end wall, 9-handle, 10-cavity, 11-charging connector, 12-battery, 13-power supply connector, 14-power supply contact, 15-jack, 16-spring sheet, 17-wing plate, 18-operation hole, 19-fixture block, 20-positioning hole, 21-power receiving contact, 22-connecting rod, 23-clamping groove, 24-first shell, 25-air outlet pipe, 26-air outlet fan, 27-air outlet, 28-air guide channel, 29-air inlet, 30-baffle, 31-communicating section, 32-transition section, 33-bearing, 34-driven shaft, 35-first belt, 36-rotating seat, 37-transmission sleeve, 38-limiting ring, 39-guide pipe, 40-sponge sleeve, 41-mounting plate, 42-driving shaft, 43-first motor, 44-first through hole, 45-second through hole, 46-flaring, 47-second shell, 48-through hole, 49-driving shaft, 50-second motor, 51-sponge strip, 52-second belt, 53-lug, 54-dirt collecting groove, 55-first inclined surface and 56-second inclined surface.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.

Referring to fig. 1 to 7, a piano key electric cleaner includes a handle 9, a gap cleaning assembly, and a surface cleaning assembly.

Both the gap cleaning assembly and the surface cleaning assembly comprise a connecting rod 22, the connecting rod 22 being detachably connected to the handle 9.

The clean subassembly in clearance includes the first casing 24 with connecting rod 22 fixed connection, it is provided with a plurality of pipe 39 to rotate in the first casing 24, first casing 24 is stretched out to the one end of pipe 39, a plurality of first through-hole 44 have been seted up on the stretching out of pipe 39, fixed cover is equipped with sponge cover 40 on the stretching out of pipe 39, set up a plurality of second through-hole 45 that correspond the intercommunication with first through-hole 44 on the sponge cover 40, the common intercommunication of other one end of all pipe 39 has outlet duct 25, outlet duct 25 wears to establish on first casing 24, be provided with air outlet fan 26 in the outlet duct 25.

The surface cleaning assembly comprises a second shell 47 fixedly connected with the connecting rod 22, an annular sponge strip 51 and a driving unit for driving the sponge strip 51 to rotate are arranged in the second shell 47, one part of the sponge strip 51 extends out of the second shell 47, and two through holes 48 for enabling the second belt 52 and the sponge strip 51 to pass through are formed in the second shell 47.

When in use, the gap cleaning assembly is firstly connected with the handle 9, then the handle 9 is held by hands and moved until the first gap 5 is formed, the sponge sleeve 40 is contacted with the white key side end walls 4 at two sides of the first gap 5, then the guide pipe 39 and the air outlet fan 26 are started, the guide pipe 39 is started and then rotated, the sponge sleeve 40 is driven to rotate synchronously during the rotation, dust or dirt adhered to the white key side end walls 4 is wiped off during the rotation of the sponge sleeve 40, the wiped dust or dirt enters the second through holes 45, air outside the sponge sleeve 40 continuously enters the guide pipe 39 through the second through holes 45 and the first through holes 44 under the action of the air outlet fan 26, the air flow carries the dust or dirt in the second through holes 45 into the guide pipe 39 during the flowing process, thereby completing the collection of the dust or dirt, avoiding the dust or dirt falling into the piano to damage, after the first gap 5 is cleaned, the second gap 6 can be cleaned in the same manner. After the first gap 5 and the second gap 6 are cleaned, the gap cleaning assembly is removed, the surface cleaning assembly is connected to the handle 9, the sponge strip 51 is driven to rotate by the driving unit, and then the portion of the sponge strip 51 extending out of the second housing 47 is brought into contact with the white key 1, the ledge 2, the white key front end wall 3, the black key 7, or the black key front end wall 8, so that dust or dirt adhering to these positions is wiped off by the sponge strip 51. If necessary, the sponge cover 40 and the sponge strip 51 can be used after being soaked with water or detergent, so that the cleaning effect is improved.

After a period of use, the gap cleaning assembly, in particular, the gap cleaning assembly, may be cleaned by inserting the conduit 39 and the sponge sleeve 40 into water with detergent dissolved therein, and then using the air outlet fan 26 to draw water into the conduit 39 to clean dust or dirt collected in the conduit 39, and the surface cleaning assembly may directly immerse the portion of the sponge strip 51 extending out of the second housing 47 in the water for brushing.

When the multifunctional keyboard is used, the sponge sleeve 40 or the sponge strip 51 is directly contacted with the keys by moving the handle 9, the shape does not need to be changed frequently, the cleaning process is simpler and quicker, and the cleaning effect is better.

The specific structure of the handle 9 is as follows: the cavity 10 is opened in the inside of the handle 9, the battery 12 is fixedly arranged in the cavity 10, the charging connector 11 electrically connected with the battery 12 is embedded in one end of the handle 9, the other end of the handle 9 is opened with the jack 15 communicated with the cavity 10, the power supply connector 13 is fixedly arranged in the jack 15, the power supply connector 13 is provided with two power supply contacts 14 electrically connected with the battery 12, one end of the connecting rod 22 is opened with two positioning holes 20 corresponding to the power supply contacts 14, and the positioning holes 20 are provided with power receiving contacts 21 matched with the power supply contacts 14. When the connector bar 22 is inserted into the receptacle 15, the power receiving contacts 21 make corresponding contact with the power supply contacts 14, so that the power of the battery 12 can be transferred to the electric device in the gap cleaning assembly or the surface cleaning assembly through the power receiving contacts 21. The connection of power supply circuit can be directly accomplished at the in-process of being connected clearance cleaning assembly or surface cleaning subassembly and handle 9, and convenient and fast more, in this embodiment, the joint 11 that charges can set up to the USB joint.

In order to promote the stability after connecting rod 22 inserts in jack 15, and then promote the stability of clean subassembly in clearance and the clean subassembly in surface, two shell fragments 16 of handle 9 fixedly connected with, two shell fragments 16 are located the both sides of jack 15 respectively, one side fixedly connected with fixture block 19 that shell fragment 16 is close to jack 15, set up two draw-in grooves 23 that correspond with fixture block 19 on the connecting rod 22, one side fixedly connected with pterygoid lamina 17 of jack 15 is kept away from to shell fragment 16, the last handle hole 18 of having seted up of pterygoid lamina 17. When being connected connecting rod 22 and handle 9, at first reverse wrench two shell fragment 16 make the distance between two fixture blocks 19 increase, then insert connecting rod 22 in jack 15, loosen two shell fragment 16 afterwards, shell fragment 16 resets in-process fixture block 19 and corresponds and inserts in draw-in groove 23 to utilize the cooperation of fixture block 19 and draw-in groove 23 with connecting rod 22's rigidity, avoid deviating from in the use connecting rod 22 from jack 15 and cause clearance cleaning assembly or surface cleaning assembly to drop. The wing 17 and the operation hole 18 are used to quickly pull the two resilient pieces 16, and a finger can be inserted into the operation hole 18 and then the two resilient pieces 16 are reversely pulled.

The specific structure of the gap cleaning assembly further comprises: first motor 43 is fixedly arranged in first casing 24, first motor 43 and air outlet fan 26 all receive electrical contact 21 electric connection with two, first motor 43 drive is connected with driving shaft 42, still rotate in first casing 24 and be provided with driven shaft 34, driven shaft 34 is parallel to each other with driving shaft 42, drive shaft 42 and driven shaft 34 go up jointly around being equipped with first belt 35, fixed cover is equipped with transmission sleeve 37 on the pipe 39, transmission sleeve 37 sets up at first belt 35 inboard and closely laminates with first belt 35, spacing ring 38 of each fixedly connected with in the both ends of transmission sleeve 37, first belt 35 is located between two spacing rings 38. First belt 35 tensioning is taken to driving shaft 42 and driven shaft 34, when using, first motor 43 drive driving shaft 42 rotates, driving shaft 42 rotates the in-process and drives first belt 35 synchronous rotation, because first belt 35 closely laminates with transmission sleeve 37, so first belt 35 rotates the in-process and can drive transmission sleeve 37 synchronous rotation, and then drive pipe 39 synchronous rotation by transmission sleeve 37, it is clean to white key side end wall 4 finally to drive sponge cover 40 by pipe 39 rotation, two spacing rings 38 and the cooperation of first belt 35 can be spacing to pipe 39, avoid pipe 39 to vibrate.

The specific communication mode between the duct 39 and the air outlet fan 26 is as follows: a partition plate 30 and a mounting plate 41 are fixedly arranged in the first shell 24, one side of the partition plate 30 is provided with an air outlet 27, the air outlet 27 is communicated with an air outlet pipe 25, the other side of the partition plate 30 is provided with a plurality of air inlets 29, the air inlets 29 are communicated with the air outlet 27 through air guide channels 28, the mounting plate 41 is embedded with a plurality of bearings 33, the guide pipes 39 are correspondingly arranged in inner rings of the bearings 33 one by one, the guide pipes 39 are also communicated with a tapered transition section 32, the small end of the transition section 32 is communicated with the guide pipes 39, and the large end of the transition section 32 is correspondingly inserted into the air inlets. The large end of the transition section 32 is also communicated with a communicating section 31, and the communicating section 31 is inserted into the air inlet 29. The bearing 33 is used to ensure that the guide tube 39 can rotate smoothly, and to support the guide tube 39 to further prevent the guide tube 39 from vibrating.

Further, one end of the driving shaft 42 is coaxially and fixedly connected with an output shaft of the first motor 43, the other end of the driving shaft 42 and two ends of the driven shaft 34 are respectively and rotatably connected with a rotating seat 36, wherein one rotating seat 36 connected with the driving shaft 42 and one rotating seat 36 connected with one end of the driven shaft 34 are both fixedly connected with the inner wall of the first shell 24, and one rotating seat 36 connected with the other end of the driven shaft 34 is fixedly connected with the mounting plate 41. The rotating seat 36 may include a base, a hemispherical groove is formed on the base, and a ball is rotatably disposed in the groove and coaxially connected to the driving shaft 42 or the driven shaft 34.

To further avoid dust or dirt removed by the sponge case 40 from falling into the piano, the outer end of the second through hole 45 communicates with a flared end 46, the flared end 46 improves the dust or dirt collecting ability, and outside air can flow into the second through hole 45 along the inner wall of the flared end 46, ensuring that dust or dirt can be fed into the duct 39.

The specific structure of the driving unit is as follows: the driving unit comprises a second motor 50 fixedly arranged in the second housing 47, the second motor 50 is electrically connected with the two power receiving contacts 21, the second motor 50 is connected with a driving shaft 49 in a driving manner, a second belt 52 is wound on all the driving shafts 49 together, and the sponge strip 51 is fixedly connected with the second belt 52. When the sponge strip rotating device is used, the second motor 50 drives the driving shaft 49 to rotate, the driving shaft 49 drives the second belt 52 to rotate, and the second belt 52 drives the sponge strip 51 to rotate in the rotating process.

In consideration of the need to bring the sponge strip 51 into contact with the black key front end face 8, and the black key front end face 8 is a cambered surface, in order to enable the sponge strip 51 to smoothly contact with the black key front end face 8 without being disturbed by the keys, a projection 53 is fixedly connected to the outside of the second housing 47, the projection 53 is in a trapezoidal shape, the bottom surface of the projection 53 is fixedly connected with the second housing 47, and the second belt 52 bypasses the side surfaces and the top surface of the projection 53. The projection 53 provides a slope to the portion of the sponge strip 51 extending out of the second housing 47, and the slope ensures that the sponge strip 51 can smoothly contact with the black key front end face 8.

In order to prevent dust or dirt wiped off by the sponge strip 51 from directly falling into the piano from the first gap 5 or the second gap 6, a plurality of dirt collecting grooves 54 uniformly distributed along the length direction are formed in the sponge strip 51, the inner wall of each dirt collecting groove 54 comprises a first inclined surface 55 and a second inclined surface 56 which are oppositely arranged, and included angles between the first inclined surface 55 and the second inclined surface 56 and the moving direction of the sponge strip 51 are acute angles. The dust and dirt removed by the sponge strips 51 first enter the dirt collection groove 54 to be temporarily collected, and the sponge strips 51 can be cleaned individually after cleaning is completed, thereby achieving the effect of preventing the dust or dirt from directly falling into the interior of the piano from the first gap 5 or the second gap 6. The contained angle between the moving direction of first inclined plane 55 and sponge strip 51 is the acute angle, can make the edge between first inclined plane 55 and the sponge strip 51 surface play the effect similar to the scraper to the promotion is to the clean effect of dust or dirt, and second inclined plane 56 has the contained angle between the moving direction of sponge strip 51 to be the acute angle can increase the volume in dirty groove 54 of collection, makes dirty groove 54 of collection can collect more dust or dirt temporarily.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a piano key electric cleaner which characterized in that: comprising a handle (9), a gap cleaning assembly and a surface cleaning assembly;

the clearance cleaning assembly and the surface cleaning assembly both comprise a connecting rod (22), and the connecting rod (22) is detachably connected with the handle (9);

the clearance cleaning assembly comprises a first shell (24) fixedly connected with the connecting rod (22), a plurality of guide pipes (39) are rotatably arranged in the first shell (24), one ends of the guide pipes (39) extend out of the first shell (24), a plurality of first through holes (44) are formed in the extending ends of the guide pipes (39), a sponge sleeve (40) is fixedly sleeved on the extending ends of the guide pipes (39), a plurality of second through holes (45) correspondingly communicated with the first through holes (44) are formed in the sponge sleeve (40), the other ends of all the guide pipes (39) are communicated with an air outlet pipe (25) together, the air outlet pipe (25) penetrates through the first shell (24), and an air outlet fan (26) is arranged in the air outlet pipe (25);

the surface cleaning assembly comprises a second shell (47) fixedly connected with the connecting rod (22), an annular sponge strip (51) and a driving unit for driving the sponge strip (51) to rotate are arranged in the second shell (47), and one part of the sponge strip (51) extends out of the second shell (47).

2. A piano key electric cleaner as claimed in claim 1, wherein: cavity (10) have been seted up to the inside of handle (9), fixedly in cavity (10) be provided with battery (12), the one end of handle (9) is inlayed and is equipped with the joint (11) that charges with battery (12) electric connection, jack (15) with cavity (10) intercommunication are seted up to the other one end of handle (9), fixedly in jack (15) be provided with power supply connector (13), be provided with two power supply contact (14) with battery (12) electric connection on power supply connector (13), two locating hole (20) corresponding with power supply contact (14) are seted up to the one end of connecting rod (22), be provided with in locating hole (20) with power supply contact (14) assorted receive electrical contact (21).

3. A piano key electric cleaner as claimed in claim 2, wherein: the handle (9) is fixedly connected with two elastic sheets (16), the two elastic sheets (16) are respectively located on two sides of the jack (15), one side of the elastic sheet (16) close to the jack (15) is fixedly connected with a clamping block (19), the connecting rod (22) is provided with two clamping grooves (23) corresponding to the clamping block (19), one side of the elastic sheet (16) far away from the jack (15) is fixedly connected with a wing plate (17), and the wing plate (17) is provided with an operation hole (18).

4. A piano key electric cleaner as claimed in claim 2, wherein: fixed first motor (43) of being provided with in first casing (24), first motor (43) with air outlet fan (26) all with two receive electrical contact (21) electric connection, first motor (43) drive is connected with driving shaft (42), still rotates in first casing (24) and is provided with driven shaft (34), and driven shaft (34) are parallel to each other with driving shaft (42), and driving shaft (42) and driven shaft (34) go up jointly around being equipped with first belt (35), fixed cover is equipped with transmission sleeve (37) on pipe (39), and transmission sleeve (37) set up in first belt (35) inboard and closely laminate with first belt (35), and each fixedly connected with a spacing ring (38) in both ends of transmission sleeve (37), first belt (35) are located between two spacing rings (38).

5. A piano key electric cleaner of claim 4, wherein: fixed baffle (30) and mounting panel (41) of being provided with in first casing (24), gas outlet (27) have been seted up to one side of baffle (30), gas outlet (27) with outlet duct (25) are linked together, and a plurality of air inlet (29) have been seted up to the other one side of baffle (30), and air inlet (29) are linked together through air guide channel (28) with gas outlet (27), inlays on mounting panel (41) and is equipped with a plurality of bearing (33), pipe (39) are installed in the inner circle of bearing (33) one-to-one, and pipe (39) still communicate tapered changeover portion (32), and the tip and pipe (39) of changeover portion (32) are linked together, and the main aspects of changeover portion (32) correspond to insert in air inlet (29).

6. A piano key electric cleaner as claimed in claim 2, wherein: the drive unit comprises a second motor (50) fixedly arranged in the second shell (47), the second motor (50) is electrically connected with the power receiving contacts (21), the second motor (50) is in driving connection with a driving shaft (49), a second belt (52) is wound on all the driving shafts (49) together, and the sponge strip (51) is fixedly connected with the second belt (52).

7. A piano key electric cleaner of claim 6, wherein: the outside fixedly connected with lug (53) of second casing (47), lug (53) are the halfpace form, and the bottom surface and the second casing (47) fixed connection of lug (53), side and the top surface of lug (53) are walked around to second belt (52).

8. A piano key electric cleaner of claim 6, wherein: a plurality of dirt collecting grooves (54) which are uniformly distributed along the length direction are formed in the sponge strip (51), the inner wall of each dirt collecting groove (54) comprises a first inclined surface (55) and a second inclined surface (56) which are oppositely arranged, and an included angle formed between each first inclined surface (55) and the moving direction of each second inclined surface (56) and the corresponding sponge strip (51) is an acute angle.