CN113450743A

CN113450743A - Concatenation formula piano

Info

Publication number: CN113450743A
Application number: CN202110649244.2A
Authority: CN
Inventors: 卢德明
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2021-09-28

Abstract

The invention discloses a spliced piano, which relates to the technical field of musical instruments and comprises a first piano body and a second piano body, wherein a display screen and a loudspeaker are respectively arranged on the first piano body and the second piano body, the top of the first piano body is connected with the second piano body through a hinge, and sliding grooves are respectively formed in two sides of one end, close to the second piano body, of the first piano body and two sides of one end, close to the first piano body, of the second piano body. According to the portable piano, the first piano body is connected with the second piano body through the hinge, the moving block, the fixing block, the cylindrical magnet a and the cylindrical magnet b, the connection mode is stable, the spliced piano forms a whole, the first piano body and the second piano body cannot be separated even if the spliced piano is moved from two ends after being assembled, and the connection stability of the first piano body and the second piano body is superior to that of the conventional portable piano.

Description

Concatenation formula piano

Technical Field

The invention relates to the technical field of musical instruments, in particular to a spliced piano.

Background

An electric piano is an electroacoustic musical instrument, and the sounding principle of the electric piano is that a keyboard is used as an on-off switch to form electrophoresis,

once the key is pressed, the internal crystal oscillator starts working to form a pulse to generate a waveform with a certain frequency, and then the waveform is amplified by the frequency divider and sent to the loudspeaker to produce sound. The whole sounding process depends on simple frequency division simulation. Among the prior art, the structure of piano is the integral type mostly, because the key is many, so its length is all longer generally, very inconvenient when carrying.

Through retrieval, chinese patent is granted No. CN 212874026U, discloses an eighty-eight key concatenation contact pin type portable piano, includes the No. one musical instrument body and No. two musical instrument bodies, No. one magnet is all fixedly installed to No. one musical instrument body near the inside both ends of a side of No. two musical instrument bodies, beneficial effect: the utility model relates to a roll over eighty eight key musical instrument and divide into two groups, a musical instrument body and No. two musical instrument bodies promptly, the mode of inhaling is inhaled with No. two magnet through a magnet that sets up in it and is made up, contact pin is spring pin interface and the female seat of spring pin is pegged graft simultaneously and is carried out the portable piano of the mode built-up connection who connects electricity, a connected mode who has more portable advantage, as long as be close to two parts, can be as an organic whole through the automatic actuation of magnetic force, it can aim at spacingly to two junctions with the slot to insert foot simultaneously, and the joint between buckle and the draw-in groove has also increased the structural stability who is connected between two musical instrument bodies.

But this a musical instrument body and No. two are connected through a magnet and No. two magnet between the body, if this portable piano concatenation finishes the back and when needing to remove, lift up the both ends of this portable piano and make a magnet and No. two magnet break away from the contact very easily, lead to a musical instrument body and No. two musical instrument body to break away from the connection, the connection stability between a musical instrument body and No. two musical instrument bodies is than poor.

To this end, we propose a split piano to solve the above problems.

Disclosure of Invention

The invention provides a spliced piano, which solves the technical problem of poor connection stability between a first piano body and a second piano body.

In order to solve the technical problems, the spliced piano provided by the invention comprises a first piano body and a second piano body, wherein a display screen and a loudspeaker are respectively arranged on the first piano body and the second piano body, the top of the first piano body is connected with the second piano body through a hinge, two sides of one end, close to the second piano body, of the first piano body and two sides of one end, close to the first piano body, of the second piano body are respectively provided with a sliding groove, the two corresponding sliding grooves are arranged in a matching manner, the inner bottom of each sliding groove is fixedly connected with a cylindrical magnet a, a moving block is positioned in the sliding groove of the first piano body and is connected with the sliding block in a sliding manner, two ends of the moving block are respectively and fixedly connected with a cylindrical magnet b, the magnetic poles of the cylindrical magnet a are opposite to those of the corresponding cylindrical magnet b, the outer side wall of the moving block is fixedly connected with a fixed block, and sliding ports corresponding to the fixed blocks are respectively arranged on the side walls of the first piano body and the second piano body, the sliding groove is communicated with the sliding opening.

Preferably, the top of the first musical instrument body and the top of the second musical instrument body are both provided with a groove a, a rotating shaft a is connected in the groove a in a rotating mode, and a supporting plate is fixedly connected to the outer side wall of the rotating shaft a.

Preferably, the length of the sliding groove on the first piano body is greater than that of the moving block, and the length of the sliding groove on the second piano body is equal to half of that of the moving block.

Preferably, the two grooves a are respectively positioned at the tops of the opposite ends of the first body and the second body.

Preferably, the magnet piece is all installed at the top of a musical instrument body and the top of No. two musical instrument bodies, the top of a musical instrument body and the top of No. two musical instrument bodies all are provided with the mounting groove a that corresponds with the magnet piece, two correspondences the magnetic pole of magnet piece is opposite.

Preferably, the bottom of the first piano body and the bottom of the second piano body are both provided with containing grooves, the inner side walls of the containing grooves are rotatably connected with two rotating shafts b, and the outer side walls of the rotating shafts b are fixedly connected with supporting legs;

the stabilizer blade includes the branch of fixed connection on pivot b lateral wall, the sleeve a has been cup jointed in the one end slip of pivot b is kept away from to branch.

Preferably, two corresponding struts are connected by a connecting rod b;

two corresponding sleeves a are connected through a connecting rod a.

Preferably, the connecting rod a is connected with the connecting rod b through a telescopic rod;

the telescopic link includes the dead lever of fixed connection on connecting rod b, the one end lateral wall that connecting rod b was kept away from to the dead lever slides and has cup jointed sleeve b, the dead lever is close to sleeve b's one end and is provided with mounting groove b, mounting groove b's interior bottom is connected with the locating part through the elastic component, the top of locating part runs through dead lever and sleeve b in proper order and extends to sleeve b's top, be provided with a plurality of spacing holes that correspond with the locating part on sleeve b's the lateral wall.

Preferably, the bottom of the musical instrument body and the bottom of the second musical instrument body all are provided with recess b, recess b with hold the groove and communicate with each other, there is U type stopper recess b's lateral wall through spring coupling, be provided with the spacing mouth that corresponds with U type stopper on the branch, the inside wall width of U type stopper matches the setting with the thickness of branch.

Compared with the related art, the spliced piano provided by the invention has the following beneficial effects:

1. the invention provides a spliced piano, wherein a first piano body is connected with a second piano body through a hinge, a moving block, a fixed block, a cylindrical magnet a and a cylindrical magnet b, the connection mode is stable, the spliced piano forms a whole, even if the spliced piano is moved from two ends after being assembled, the situation that the first piano body is separated from the second piano body cannot occur, the connection stability of the first piano body and the second piano body is superior to that of the conventional portable piano, and the problem that the first piano body is separated from the second piano body due to the fact that the first piano body is easily separated from the second piano body when the first piano body is lifted up and the second piano body needs to move after the piano is spliced is solved.

2. The invention provides a spliced piano, wherein a moving block is connected with a piano body through attraction of a cylindrical magnet a and a cylindrical magnet b, so that after being folded, the moving block can be retracted into a sliding groove on the piano body, and can be attracted and fixed on the piano body, and the moving block is prevented from being disconnected from the piano body in the carrying process and being lost.

3. The invention provides a spliced piano, wherein magnet blocks are respectively arranged on the top of a first piano body and the top of a second piano body, and the first piano body and the second piano body are connected by utilizing the attraction of the two corresponding magnet blocks, so that the bottom of the folded spliced piano faces outwards, and the function of protecting piano keys can be achieved.

4. The invention provides a spliced piano, which is characterized in that containing grooves are formed in the bottom of a first piano body and the bottom of a second piano body, and rotatable supporting legs are arranged in the containing grooves, so that the spliced piano has the function of a self-provided supporting device, the problem that the spliced piano cannot be used when a supporting table or a desk is not used for supporting is solved, and meanwhile, the supporting legs can be stretched at the bottoms of the first piano body and the second piano body, and the normal use and transportation and carrying of the spliced piano are not influenced.

5. The invention provides a spliced piano, wherein two corresponding support legs are connected with a telescopic rod through a connecting rod a and a connecting rod b, the length of the telescopic rod can be adjusted to achieve the effect of adjusting the length of the support legs, so that the height of the spliced piano can be adjusted under the condition that a supporting table or a desk is not used for supporting according to different heights of users, and the applicability of the spliced piano is improved.

6. The invention provides a spliced piano, which is characterized in that a spring and a U-shaped limiting block are arranged at the bottom of a first piano body and the bottom of a second piano body, a supporting leg can be stably fixed in a containing groove by clamping the U-shaped limiting block in a limiting port on a supporting rod, and when the supporting leg is kept vertical to the first piano body or the second piano body, the U-shaped limiting block is sleeved on the outer side wall of the supporting rod, so that the effect of keeping the angle between the supporting leg and the first piano body or the second piano body can be achieved.

Drawings

Fig. 1 is a schematic structural view of a spliced piano;

FIG. 2 is a schematic top view of a sectional piano;

FIG. 3 is a schematic bottom view of a piano;

FIG. 4 is a schematic view of the structure at A in FIG. 3;

fig. 5 is a sectional view of a spliced piano;

fig. 6 is a schematic view of a connection structure of a moving block, a fixed block and a cylindrical magnet b in a spliced piano;

fig. 7 is a schematic structural view of a telescopic rod in a sectional view of a spliced piano.

Reference numbers in the figures: 1. a first piano body; 2. a second piano body; 3. a magnet block; 4. a hinge; 5. a groove a; 6. a rotating shaft a; 7. a support plate; 8. a speaker; 9. a display screen; 10. a sliding groove; 11. a cylindrical magnet a; 12. a moving block; 13. a fixed block; 14. a rotating shaft b; 15. a strut; 16. a sleeve a; 17. a connecting rod a; 18. a telescopic rod; 181. fixing the rod; 182. a sleeve b; 183. a limiting member; 184. an elastic member; 19. a connecting rod b; 20. a U-shaped limiting block; 21. a spring; 22. and a cylindrical magnet b.

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.

Example one

As shown in fig. 1 to 7, a split piano comprises a first piano body 1 and a second piano body 2, a display screen 9 and a loudspeaker 8 are respectively mounted on the first piano body 1 and the second piano body 2, the top of the first piano body 1 is connected with the second piano body 2 through a hinge 4, two sliding grooves 10 are respectively arranged on two sides of one end of the first piano body 1 close to the second piano body 2 and two sides of one end of the second piano body 2 close to the first piano body 1, the corresponding two sliding grooves 10 are arranged in a matching manner, a cylindrical magnet a11 is fixedly connected to the inner bottom of each sliding groove 10, a moving block 12 is slidably connected in each sliding groove 10 of the first piano body 1, two ends of each moving block 12 are fixedly connected with a cylindrical magnet b22, the cylindrical magnet a11 is opposite to the magnetic pole of the corresponding cylindrical magnet b22, a fixed block 13 is fixedly connected to the outer side wall of each moving block 12, sliding ports corresponding to the fixed blocks 13 are respectively arranged on the side wall of the first piano body 1 and the side wall of the second piano body 2, the slide groove 10 communicates with the slide port.

Hinge 4 is passed through at the top of a musical instrument body 1 and is connected with the top of No. two musical instrument bodies 2 for can rotate between a musical instrument body 1 and No. two musical instrument bodies 2 and be connected, so that this concatenation formula piano is folding, one side that a musical instrument body 1 has the key contacts with the one side that No. two musical instrument bodies 2 have the key, not only can make the length of this concatenation formula piano obtain reducing, can also protect the key of piano, in addition, still need not solitary separately carrying a musical instrument body 1 and No. two musical instrument bodies 2.

Through being connected with the cylindricality magnet a11 on the No. two body 2 through the cylindricality magnet b22 on the movable block 12 for the one end of movable block 12 is fixed on No. two body 2, and the other end is located the sliding tray 10 of No. one body 1, can improve the stability that No. one body 1 is connected with No. two body 2, even under the condition that the concatenation piano equipment finishes, move this concatenation piano from both ends or directly move this concatenation piano from the middle and can not appear the condition that a body 1 and No. two body 2 separate, the stability of being connected of a body 1 and No. two body 2 is superior to the stability of being connected of current portable piano.

The length of the sliding groove 10 on the first body 1 is greater than that of the moving block 12, and the length of the sliding groove 10 on the second body 2 is equal to half of that of the moving block 12.

The purpose is that after the one end of movable block 12 and No. two organ bodies 2 actuation are connected, a part of movable block 12 still is located the sliding tray 10 of an organ body 1, utilize movable block 12 to support No. one organ body 1 and No. two organ bodies 2, even under the condition that the concatenation piano equipment finishes, move this concatenation piano from both ends or directly move this concatenation piano from the middle the condition that No. one organ body 1 and No. two organ bodies 2 separate can not appear yet, in addition, after this concatenation piano is folding, movable block 12 can be fixed on an organ body 1 by complete actuation, and in the sliding tray 10 of complete retraction, not only can not increase the length of this concatenation piano after the shrink, but also can avoid movable block 12 to lose.

The top of the first body 1 and the top of the second body 2 are both provided with a groove a5, the groove a5 is rotatably connected with a rotating shaft a6, and the outer side wall of the rotating shaft a6 is fixedly connected with a support plate 7.

The recess a5 is for receiving the support plate 7, and the support plate 7 is for supporting music.

The two recesses a5 are located at the top of the opposite ends of the first body 1 and the second body 2, respectively.

Magnet piece 3 is all installed at the top of a musical instrument body 1 and the top of No. two musical instrument bodies 2, and the top of a musical instrument body 1 and the top of No. two musical instrument bodies 2 all are provided with the mounting groove a that corresponds with magnet piece 3, and the magnetic pole of the magnet piece 3 of two correspondences is opposite.

Install the effect at magnet piece 3 at body 1 top and No. 2 tops of No. one body and be convenient for after this concatenation formula piano, body 1 and No. two bodies 2 can the actuation be connected to each other for the bottom of concatenation formula piano after folding outwards can play the function of protecting the piano key.

Example two

On the basis of the first embodiment, the bottom of the first body 1 and the bottom of the second body 2 are both provided with containing grooves, the inner side walls of the containing grooves are rotatably connected with two rotating shafts b14, and the outer side walls of the rotating shafts b14 are fixedly connected with supporting legs;

the supporting legs comprise supporting rods 15 fixedly connected to the outer side wall of the rotating shaft b14, and one ends of the supporting rods 15 far away from the rotating shaft b14 are sleeved with sleeves a16 in a sliding mode.

The stabilizer blade is accomodate in the inslot that holds of a body 1 and No. two body 2 bottoms to in the circumstances that brace table or desk supported, utilize the stabilizer blade to support the bottom of a body 1 and the bottom of No. two bodies 2, so that this piano of the user of being convenient for is played.

The two corresponding struts 15 are connected by a connecting rod b 19;

two corresponding sleeves a16 are connected by a connecting rod a 17.

The function of the connecting bar a17 and the connecting bar b19 is to improve the stability of the connection between the two legs on the same body.

The connecting rod a17 is connected with the connecting rod b19 through the telescopic rod 18;

the telescopic rod 18 comprises a fixing rod 181 fixedly connected to a connecting rod b19, a sleeve b182 is sleeved on the outer side wall of one end, far away from the connecting rod b19, of the fixing rod 181 in a sliding mode, a mounting groove b is formed in one end, close to the sleeve b182, of the fixing rod 181, the inner bottom of the mounting groove b is connected with a limiting piece 183 through an elastic piece 184, the top of the limiting piece 183 sequentially penetrates through the fixing rod 181 and the sleeve b182 and extends towards the top of the sleeve b182, and a plurality of limiting holes corresponding to the limiting piece 183 are formed in the side wall of the sleeve b 182.

The length of telescopic link 18 can insert different spacing downthehole through locating part 183 and adjust fixedly, and through the length of adjusting telescopic link 18, the length of stabilizer blade can be adjusted to in the difference according to user's height, adjust the height of this concatenation formula piano under the condition that does not have brace table or desk to support.

The bottom of the first musical instrument body 1 and the bottom of the second musical instrument body 2 are both provided with a groove b, the groove b is communicated with the containing groove, the side wall of the groove b is connected with a U-shaped limiting block 20 through a spring 21, a limiting opening corresponding to the U-shaped limiting block 20 is arranged on the supporting rod 15, and the width of the inner side wall of the U-shaped limiting block 20 is matched with the thickness of the supporting rod 15.

Install spring 21 and U type stopper 20 in recess b, utilize U type stopper 20 card in the spacing mouth on branch 15, can hold the inslot with stable the fixing of stabilizer blade, avoid the in-process that carries, the stabilizer blade rotates on the musical instrument body. When the supporting legs and the first body 1 or the second body 2 are kept vertical, the U-shaped limiting blocks 20 are sleeved on the outer side walls of the supporting rods 15, and the effect of keeping the angles between the supporting legs and the first body 1 or the second body 2 can be achieved.

The working principle is as follows:

when the piano is required to be used, the second piano body 2 is rotated until the top of the second piano body 2 and the top of the first piano body 1 are located on the same horizontal plane, then the two fixing blocks 13 are pushed to drive the moving block 12 to move in the sliding groove 10 of the second piano body 2, until the cylindrical magnet b22 on the moving block 12 and the cylindrical magnet a11 on the second piano body 2 are attracted and connected, one end of the moving block 12 is fixed on the second piano body 2, the other end of the moving block 12 is located in the sliding groove 10 of the first piano body 1, namely, the assembly of the spliced piano is completed, the assembly mode is simple and rapid, and under the condition that the spliced piano is moved from two ends or is directly moved from the middle, the condition that the first piano body 1 is separated from the second piano body 2 cannot occur. When the piano is carried out, the moving block 12 is retracted into the sliding groove 10 on the first piano body 1 until the cylindrical magnet b22 arranged at one end, far away from the second piano body 2, of the moving block 12 is connected with the cylindrical magnet a11 on the first piano body 1 in an attracting manner, the moving block 12 is completely retracted into the sliding groove 10 of the first piano body 1, the second piano body 2 is rotated to cover the first piano body 1, and the magnet block 3 on the second piano body 2 is ensured to be connected with the magnet block 3 on the first piano body 1 in an attracting manner, so that the length shrinkage of the piano is completed, the length of the piano after shrinkage is changed into the original half, the bottom of the piano faces outwards, and the keys face inwards, so that the keys of the piano can be protected.

When the piano is used without a support stand or a table for support, the piano is first spliced, after the splicing is completed, the spring 21 is compressed, so that the U-shaped stopper 20 is disconnected from the support rod 15, the support rod 15 is rotated to maintain a vertical state with the body, and then the spring 21 is released due to elastic potential energy of the spring 21. The U-shaped limiting block 20 clamps the supporting rod 15, so that the supporting feet are always kept in a state of being perpendicular to the piano body, and when the height of the piano needs to be adjusted, the length of the telescopic rod 18 can be directly adjusted.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a concatenation formula piano, includes a musical instrument body (1) and No. two musical instrument bodies (2), all install display screen (9) and speaker (8), its characterized in that on a musical instrument body (1) and No. two musical instrument bodies (2): the top of the first piano body (1) is connected with the second piano body (2) through a hinge (4), two sliding grooves (10) are formed in two sides of one end, close to the second piano body (2), of the first piano body (1) and two sides of one end, close to the first piano body (1), of the second piano body (2), the corresponding two sliding grooves (10) are arranged in a matching mode, a cylindrical magnet a (11) is fixedly connected to the inner bottom of each sliding groove (10), a moving block (12) is connected to the sliding grooves (10) of the first piano body (1) in a sliding mode, cylindrical magnets b (22) are fixedly connected to two ends of the moving block (12), the magnetic poles of the cylindrical magnets a (11) are opposite to those of the corresponding cylindrical magnets b (22), a fixing block (13) is fixedly connected to the outer side wall of the moving block (12), sliding ports corresponding to the fixing blocks (13) are formed in the side wall of the first piano body (1) and the side wall of the second piano body (2), the sliding groove (10) is communicated with the sliding opening.

2. The spliced piano as claimed in claim 1, wherein the top of the first piano body (1) and the top of the second piano body (2) are both provided with a groove a (5), a rotating shaft a (6) is rotatably connected in the groove a (5), and a supporting plate (7) is fixedly connected to the outer side wall of the rotating shaft a (6).

3. A spliced piano as claimed in claim 2, wherein said two grooves a (5) are formed at the tops of the opposite ends of the first body (1) and the second body (2), respectively.

4. A spliced piano as claimed in claim 1, wherein magnet blocks (3) are mounted on the top of said first piano body (1) and the top of said second piano body (2), and mounting grooves a corresponding to the magnet blocks (3) are formed on the top of said first piano body (1) and the top of said second piano body (2), and the magnetic poles of the two corresponding magnet blocks (3) are opposite.

5. The spliced piano of claim 1, wherein the bottom of the first piano body (1) and the bottom of the second piano body (2) are provided with containing grooves, the inner side walls of the containing grooves are rotatably connected with two rotating shafts b (14), and the outer side walls of the rotating shafts b (14) are fixedly connected with supporting legs;

the supporting legs comprise supporting rods (15) fixedly connected to the outer side wall of the rotating shaft b (14), and one ends, far away from the rotating shaft b (14), of the supporting rods (15) are sleeved with sleeves a (16) in a sliding mode.

6. A spliced piano according to claim 5, characterized in that two corresponding said struts (15) are connected by a connecting rod b (19);

two corresponding sleeves a (16) are connected through a connecting rod a (17).

7. Spliced piano according to claim 6, characterized in that the connecting rod a (17) is connected with connecting rod b (19) by means of a telescopic rod (18);

telescopic link (18) are including fixed connection dead lever (181) on connecting rod b (19), the one end lateral wall that connecting rod b (19) were kept away from in dead lever (181) slides and has cup jointed sleeve b (182), the one end that dead lever (181) are close to sleeve b (182) is provided with mounting groove b, the interior bottom of mounting groove b is connected with locating part (183) through elastic component (184), the top of locating part (183) runs through dead lever (181) and sleeve b (182) in proper order and extends to the top of sleeve b (182), be provided with a plurality of spacing holes that correspond with locating part (183) on the lateral wall of sleeve b (182).

8. The spliced piano of claim 5, wherein grooves (b) are formed in the bottom of the first piano body (1) and the bottom of the second piano body (2), the grooves (b) are communicated with the containing grooves, the side walls of the grooves (b) are connected with U-shaped limiting blocks (20) through springs (21), limiting openings corresponding to the U-shaped limiting blocks (20) are formed in the supporting rods (15), and the width of the inner side walls of the U-shaped limiting blocks (20) is matched with the thickness of the supporting rods (15).