CN210865594U - Whole-gamut multi-sound cucurbit flute playing device - Google Patents

Abstract

The utility model discloses a many vocal parts of gamut cucurbit flute performance device has solved the problem of the narrow, unable broad complicated melody of performance gamut of current cucurbit flute musical instrument gamut. This performance device includes that a plurality of presses the key, and every presses the key end to pass through the connection piece to be fixed at the mount, is equipped with pneumatic switch respectively in the below of every white key and every black key, and all pneumatic switch's bottom is installed perpendicularly on the gas collecting tank and all is linked together with the gas collecting tank, and the one end of air duct is installed on the air duct mounting hole to be linked together with the gas collecting tank, the blow gun is installed to the other end of air duct, is connected with the cucurbit flute respectively through communicating pipe at every pneumatic switch's the end of giving vent to anger, cucurbit flute performance device still includes the musical instrument case. The utility model discloses a calabash silk linkage sound production has expanded calabash silk gamut width to make the calabash silk have the performance ability of the random conversion of polyphony portion, gamut, many accents.

Description

Whole-gamut multi-sound cucurbit flute playing device

Technical Field

The utility model belongs to the technical field of play musical instrument, a device is played to full register for easy reference polyphony fractional calabash silk is related to.

Background

The cucurbit flute is a musical instrument of minority nationalities such as the southwest and the Dai nationality in China, is a single-spring free-spring woodwind instrument, belongs to a reed pipe coupling vibration musical instrument, has soft and beautiful sound, is called the east saxophone, and can blow eight tones together because the traditional cucurbit flute is provided with seven sound-emitting holes (main tubes) on the manufacturing, one sound-emitting hole is one tone, and one cylindrical tone is added. Therefore, the traditional Hulusi changes the original fingering by moving the position of the uterine sound, theoretically, five to six tones can be blown out, only the range width of one octave between the bass 5 and the treble 6 is provided, and the tone is difficult to change due to the narrow range. The cucurbit flute with C tone is taken as an example, is a six-tone mode based on a national style five-tone scale, has certain limitation on playing cucurbit flute music, not all music can be played, the selection is properly carried out according to the range condition of the music, the optimal tune is carried out by taking the third hole as '1', and the tuning can be realized by replacing the cucurbit flute if the music needs to be transferred.

Due to the limitation of the pronunciation principle, the musical range of the cucurbit flute is narrow, complex music with wide musical range cannot be performed, and the artistic expression capability of the cucurbit flute is greatly reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a many vocal parts of whole register calabash silk performance device has expanded calabash silk register width to make the calabash silk have the performance ability of many vocal parts, whole register, the random conversion of many formulas.

In order to achieve the above object, the utility model provides a following technical scheme: a whole-gamut polyphonic calabash string playing device comprises a plurality of pressing keys, wherein the plurality of pressing keys comprise a plurality of white keys and a plurality of black keys, the tail end of each pressing key is fixed on a fixing frame through a connecting sheet, pneumatic switches are arranged below each white key and each black key respectively, the bottom ends of all the pneumatic switches are vertically arranged on a gas collecting box and are communicated with the gas collecting box, the top ends of the pneumatic switches are in contact with the pressing keys, the front end of the gas collecting box is provided with a gas guide pipe mounting hole, one end of a gas guide pipe is arranged on the gas guide pipe mounting hole and is communicated with the gas collecting box, the other end of the gas guide pipe is provided with a blowing nozzle, the gas outlet end of each pneumatic switch is connected with a calabash string through a communicating pipe respectively, the calabash strings are arranged according to twelve equal temperaments in different octaves, and the front surface of a main sound emitting pipe of the cala, The fourth hole, the fifth hole, the sixth hole and the seventh hole on the back of the main sound tube of each cucurbit flute are sealed, so that each cucurbit flute can emit mode-adjusting sound of the third hole of each cucurbit flute;

the cucurbit flute playing device further comprises a musical box, wherein the musical box comprises a back plate, a front plate, a left side plate, a right side plate and a bottom plate, the back plate and the front plate are arranged in parallel, the left side plate and the right side plate are respectively arranged at the left end and the right end between the back plate and the front plate and are respectively connected with the back plate and the front plate to form a box body structure in a surrounding manner, and the peripheral edge of the bottom plate is respectively connected with the bottom edges of the back plate, the front plate, the left side plate and the right side plate to seal the bottom of the box body;

the upper end of musical instrument incasement rear side is arranged in to the mount level, and the left and right both ends face of mount is fixed respectively on the left side board, on the medial surface of right side limit, the rear end face of mount is fixed mutually with the backplate, the left and right both ends face of gas collection case is fixed respectively on the left side board, on the medial surface of right side board, and be equipped with communicating pipe fixed plate respectively at the preceding terminal surface bottom of gas collection case and rear end face bottom, be equipped with a plurality of spacing holes that are used for communicating pipe to pass on every communicating pipe fixed plate, the bottom of communicating pipe passes spacing hole and arranges the inboard of communicating pipe fixed plate in, be equipped with the fourth through-hole that is used for the air duct to wear out in the air duct mounting hole of front bezel and gas collection case front end department of.

Further, the pneumatic switch comprises an outer shell, a push rod, an upper sealing silica gel pad, a lower sealing silica gel pad, an upper top cover and a spring plate, wherein the outer shell is of a hollow cylinder structure, a first annular boss and a second annular boss are arranged in the outer shell from top to bottom, the push rod vertically penetrates through a first through hole of the first annular boss and a second through hole of the second annular boss, the upper end of the push rod is sleeved with the upper sealing silica gel pad, the bottom end of the upper top cover is installed at the top end of the outer shell in a threaded mode and is tightly fixed between the bottom end face of the upper top cover and the upper end face of the first annular boss, a third through hole for the push rod to penetrate out is formed in the center of the upper top cover, the top end of the push rod penetrates out of the third through hole, the lower end of the push rod is sleeved with the lower sealing silica gel pad, and a first gasket and a first fixing nut, the first fixing nut is fixed with the ejector rod in a threaded mode, the lower sealing silica gel pad is limited, the outer part of the outer shell is provided with an elastic sheet, the top end of the elastic sheet is arranged on the ejector rod penetrating out of the upper top cover, a second gasket and a second fixing nut are arranged above the elastic sheet, the second fixing nut and the ejector rod are fixed in a threaded mode, the elastic sheet is limited between the upper top cover and the second fixing nut, the bottom end of the elastic sheet is fixed on one side of the shell body of the outer shell through a screw, and a gap is formed between the elastic sheet and the upper end face of the upper top cover; the outer shell body is provided with an air outlet pipe protruding outwards as an air outlet end, the inner side of the air outlet pipe axially penetrates through a second annular boss and is communicated with a second through hole, a cavity is arranged below the second annular boss in the outer shell, the bottom end face of the outer shell is provided with an air inlet, and the periphery of the bottom end of the outer shell is provided with external threads used for being connected with the air collection box;

under the natural state, the top of ejector pin and the key bottom face of pressing contact naturally, the up end of lower sealing silica gel pad closely laminates with the lower terminal surface of second ring boss, the top bounce top of shell fragment is in second gasket bottom, when pressing the key down, the ejector pin downstream, thereby drive the separation between sealing silica gel pad and the second ring boss bottom face down, pneumatic switch opens, the top of shell fragment moves down between first gasket and last top cap along with the atress of ejector pin this moment, when loosening the key of pressing, shell fragment self elasticity drives ejector pin upward movement and resumes to the initial condition, resume the laminating between lower sealing silica gel pad and the second ring boss bottom face this moment, pneumatic switch closes.

Further, the gas collection box is of a rectangular box structure, air vents are formed in the upper end face of the box body and correspond to each pneumatic switch, a circle of annular protrusion is vertically arranged on the periphery of each air vent, internal threads are arranged on the inner periphery of the annular protrusion, the bottom end of each pneumatic switch is vertically fixed with the annular protrusion through matching of external threads and the internal threads, sealant is coated at the joint to guarantee sealing, and the air vents arranged on the box body and the air inlets formed in the bottom end face of the outer shell of each pneumatic switch enable air flow blown into the gas collection box from the air guide tubes to flow into the pneumatic switches when the pneumatic switches are switched on and finally reach cucurbit flute along the air outlet tube, so that the cucurbit flute can pronounce.

Further, the fourth hole, the fifth hole and the sixth hole on the front surface of each cucurbit flute main sound tube and the seventh hole on the back surface of each cucurbit flute main sound tube are sealed by latex cloth.

Furthermore, the communicating pipe is connected with an air outlet pipe of the pneumatic switch and the calabash wire blowing nozzle in a sealing mode.

Furthermore, the air duct is connected with the air duct mounting hole of the air collecting box in a sealing manner.

Further, the cucurbit flute includes the cucurbit flute of 1 ~ 7 octaves, and every octave musical interval includes the cucurbit flute of 12 scales, and the cucurbit flute number is between 12 to 84, and the number of pressing the key and air switch corresponds with cucurbit flute number respectively.

Furthermore, the top end of the back plate is connected with a cover plate through a hinge.

Compared with the prior art, the utility model, beneficial effect lies in: the utility model discloses a many vocal parts cucurbit flute performance device in gamut, the pitch of every cucurbit flute is the same with the key pitch of pressing according to twelve temperaments and arrange on average, when pressing the key and being in natural state, pneumatic switch is in the off-state, human lung air current from the mouthpiece input can not reach and drive cucurbit flute musical instrument and make sound, when the key is pressed to a finger, the ejector pin can be pressed down simultaneously, make pneumatic switch be in when opening the state, human lung air current will be through outlet duct and communicating pipe reachs corresponding connection's cucurbit flute, and drive this cucurbit flute musical instrument and make sound. When the music instrument is played, the keys for pressing corresponding pitch positions are pressed according to the related music score, and then the cucurbit flute connected correspondingly is driven to make sound, so that the playing of the cucurbit flute music is finished. Because the plurality of cucurbit flute are linked to generate sound, the width of the musical range of the cucurbit flute is expanded, and therefore the cucurbit flute has the playing capability of randomly converting a plurality of sound parts, a whole musical range and a plurality of tones.

Drawings

Fig. 1 is a perspective view showing the structure of a playing apparatus according to the present invention;

FIG. 2 is a schematic view of the installation of the pneumatic switch and the header, and is also a view of the closed state of the pneumatic switch;

FIG. 3 is a diagram of the ON state of the pneumatic switch;

FIG. 4 is a schematic diagram of the front structure of the cucurbit flute;

FIG. 5 is a schematic view of the back structure of a cucurbit flute;

1-pressing a key; 1-1-white bond; 1-2-black bond; 2-connecting the sheet; 3-a fixing frame; 4-a pneumatic switch; 4-1-outer shell; 4-1-1-a first annular boss; 4-1-1-1-first via; 4-1-2-a second annular boss; 4-1-2-1-second via; 4-2-ejector pin; 4-3-sealing the silica gel pad; 4-4-lower sealing silica gel pad; 4-5-upper top cover; 4-5-1-third via; 4-6-spring plate; 4-7-a first gasket; 4-8-a first retaining nut; 4-9-a second gasket; 4-10-a second retaining nut; 4-11-screws; 4-12-air outlet pipe; 4-13-gas inlet;

5-a gas collection box; 5-1-air duct mounting holes; 5-2-vent holes; 5-3-annular protrusion; 6-gas guide tube; 7-a blowing nozzle; 8-communicating pipe; 9-cucurbit flute; 9-6-first hole; 9-5-second well; 9-4-third aperture; 9-3-fourth well; 9-2-fifth well; 9-1-sixth well; 9-7-seventh hole; 9-8-main sound tube; 10-a back plate; 11-a front plate; 11-1-fourth via; 12-left side panel; 13-right side plate; 14-a base plate; 15-communicating pipe fixing plate; 15-1-a limiting hole; 16-latex cloth; 17-folding the paper; 18-cover plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1, a whole-range polyphonic calabash musical instrument playing device comprises 36 keys 1, a plurality of keys 1 comprise 21 white keys 1-1 and 15 black keys 1-2, the end of each key 1 is fixed on a fixed mount 3 through an elastic connecting sheet 2, the keys 1-1 and the fixed mount 3 are fixed on the fixed mount through adhesive bonding or are screwed down by screws, so that the white keys 1-1 and the black keys 1-2 can be arranged according to a standard keyboard type of a keyboard instrument, pneumatic switches 4 are respectively arranged below each white key 1-1 and each black key 1-2, the bottom ends of all the pneumatic switches 4 are vertically arranged on a gas collection box 5 and are communicated with the gas collection box 5, the top ends of the pneumatic switches 4 are contacted with the keys 1, the front end of the gas collection box 5 is provided with gas guide tube mounting holes 5-1, one end of the air duct 6 is arranged on the air duct mounting hole 5-1 and is communicated with the air collecting box 5, the other end of the air duct 6 is provided with a blowing nozzle 7, the air outlet end of each pneumatic switch 4 is respectively connected with a cucurbit flute 9 through a communicating pipe 8, the cucurbit flutes 9 are arranged according to twelve equal temperaments of different octaves, the front surface of a main sound tube 9-8 of each cucurbit flute is provided with a first hole 9-6, a second hole 9-5, a third hole 9-4, a fourth hole 9-3, a fifth hole 9-2 and a sixth hole 9-1, the back surface is provided with a seventh hole 9-7, and the fourth hole 9-3, the fifth hole 9-2, the sixth hole 9-1 on the front surface of the main sound tube 9-8 of each cucurbit flute 9 and the seventh hole 9-7 on the back surface of the main sound tube 9-8 are sealed, so that each cucurbit flute 9 emits the third hole mode of each cucurbit flute 9 per se; the cucurbit flute is prepared from commercially available cucurbit flute.

The cucurbit flute playing device further comprises a musical box, wherein the musical box comprises a back plate 10, a front plate 11, a left side plate 12, a right side plate 13 and a bottom plate 14, the back plate 10 and the front plate 11 are arranged in parallel, the left side plate 12 and the right side plate 13 are respectively arranged at the left end and the right end between the back plate 10 and the front plate 11 and are respectively connected with the back plate 10 and the front plate 11 to form a box body structure, and the peripheral edge of the bottom plate 14 is respectively connected with the bottom end edges of the back plate 10, the front plate 11, the left side plate 12 and the right side plate 13 to seal the bottom of the box body;

the fixed frame 3 is horizontally arranged at the upper end of the rear side in the piano cabinet, the left and right end faces of the fixed frame 3 are respectively fixed on the inner side faces of a left side plate 12 and a right side plate 13, the rear end face of the fixed frame 3 is fixed with a back plate 10, the left and right end faces of the gas collection box 5 are respectively fixed on the inner side faces of the left side plate 12 and the right side plate 13, communication pipe fixing plates 15 are respectively arranged at the bottom end of the front end face and the bottom end of the rear end face of the gas collection box 5, each communication pipe fixing plate 15 is provided with a plurality of limiting holes 15-1 for the communication pipes 8 to pass through, the bottom ends of the communication pipes 8 pass through the limiting holes 15-1 and are arranged at the inner sides of the communication pipe fixing plates 15, the cucurbit flute 9 connected to the bottom ends of the communication pipes 8 naturally hang down and are arranged at the inner sides of the communication pipe fixing plates 15, the tail end of the air duct penetrates out of the fourth through hole 11-1 of the front plate.

Referring to fig. 2-3, the pneumatic switch 4 comprises an outer shell 4-1, a top rod 4-2, an upper sealing silica gel pad 4-3, a lower sealing silica gel pad 4-4, an upper top cover 4-5, and an elastic sheet 4-6, the outer shell 4-1 is a hollow cylinder structure, a first annular boss 4-1-1 and a second annular boss 4-1-2 are arranged inside the outer shell 4-1 from top to bottom, the top rod 4-2 vertically penetrates through the first through hole 4-1-1-1 of the first annular boss 4-1-1 and the second through hole 4-1-2-1 of the second annular boss 4-1-2, the upper end of the top rod 4-2 is sleeved with the upper sealing silica gel pad 4-3, the bottom end of the upper top cover 4-5 is mounted at the top end of the outer shell 4-1 in a threaded manner, an upper sealing silica gel pad 4-3 is fixedly arranged between the bottom end face of the upper top cover 4-5 and the upper end face of a first annular boss 4-1-1 in a propping manner, a third through hole 4-5-1 for the top rod 4-2 to penetrate out is arranged in the center of the upper top cover 4-5, the top end of the top rod 4-2 penetrates out from the third through hole 4-5-1, a lower sealing silica gel pad 4-4 is sleeved at the lower end of the top rod 4-2, a first gasket 4-7 and a first fixing nut 4-8 are arranged below the lower sealing silica gel pad 4-4, the first fixing nut 4-8 is fixed with the top rod 4-2 in a threaded manner to limit the lower sealing silica gel pad 4-4, a spring plate 4-6 is arranged outside an outer shell 4-1, the top end of the spring plate 4-6 is arranged on the top rod 4-2 through which penetrates out of the upper top cover 4-5, a second gasket 4-9 and a second fixing nut 4-10 are arranged above the elastic sheet 4-6, the second fixing nut 4-10 is fixed with the ejector rod 4-2 in a threaded manner, the elastic sheet 4-6 is limited between the upper top cover 4-5 and the second fixing nut 4-10, the bottom end of the elastic sheet 4-6 is fixed on one side of the shell body of the outer shell 4-1 through a screw 4-11, and a gap is formed between the elastic sheet 4-6 and the upper end face of the upper top cover 4-5; an air outlet pipe 4-12 protruding outwards is arranged on the shell body of the outer shell 4-1 and serves as an air outlet end, the inner side of the air outlet pipe 4-12 is axially arranged in a second annular boss 4-1-2 in a penetrating mode and communicated with a second through hole 4-1-2-1, a cavity is arranged below the second annular boss 4-1-2 in the outer shell 4-1, an air inlet 4-13 is formed in the bottom end face of the outer shell 4-1, and external threads used for being connected with the air collection box 5 are arranged on the periphery of the bottom end of the outer shell 4-1;

in a natural state, the top end of the ejector rod 4-2 is naturally contacted with the bottom end face of the pressing key 1, the upper end face of the lower sealing silica gel pad 4-4 is tightly attached to the lower end face of the second annular boss 4-1-2, the top end of the elastic sheet 4-6 is bounced up and propped against the bottom end of the second gasket 4-9, when the pressing key 1 is pressed downwards, the ejector rod 4-2 moves downwards, so that the lower sealing silica gel pad 4-4 is driven to be separated from the bottom end face of the second annular boss 4-1-2, the pneumatic switch is turned on, at the moment, the top end of the elastic sheet 4-6 moves downwards between the first gasket 4-7 and the upper top cover 4-5 along with the stress of the ejector rod 4-2, when the key 1 is released, the elastic sheet 4-6 drives the ejector rod 4-2 to move upwards to return to, at this time, the lower sealing silica gel pad 4-4 and the bottom end face of the second annular boss 4-1-2 are restored to be attached, and the pneumatic switch is turned off.

The gas collection box 5 is of a rectangular box body structure, the interior of the box body is of a cavity structure, the upper end surface of the box body is provided with a vent hole 5-2 corresponding to each pneumatic switch, a circle of annular bulge 5-3 is vertically arranged on the periphery of each vent hole 5-2, internal threads are arranged on the inner periphery of the annular bulge 5-3, the bottom end of the pneumatic switch is matched with the internal threads through the external threads to vertically fix the pneumatic switch 4 with the annular bulge 5-3, and the joint is coated with sealant to ensure sealing, the air vent 5-2 arranged on the box body and the air inlet 4-13 arranged on the bottom end surface of the outer shell 4-1 of the pneumatic switch enable the airflow blown into the air collection box 5 from the air duct 6 to flow into the pneumatic switch 4 when the pneumatic switch 4 is switched on, and finally reaches the cucurbit flute 9 along the air outlet pipe 4-12, so that the cucurbit flute 9 is sounded.

Referring to fig. 4-5, the fourth hole 9-3, the fifth hole 9-2, the sixth hole 9-1 on the front surface of the main sound tube 9-8 and the seventh hole 9-7 on the back surface of the main sound tube 9-8 of each cucurbit flute 9 are sealed by latex cloth 16.

The communicating pipe 8 is hermetically connected with the air outlet pipe 4-12 of the pneumatic switch 4 and the calabash wire blowing nozzle.

The air duct 6 is connected with the air duct mounting hole 5-1 of the air collecting box in a sealing way.

The cucurbit flute includes the cucurbit flute of 1 ~ 7 octaves, and every octave musical interval includes the cucurbit flute of 12 scales (twelve equal temperaments), and the cucurbit flute number is between 12 to 84 promptly, and the number of pressing the key and pneumatic switch corresponds with cucurbit flute number respectively. The number of the cucurbit flute is the same as the number of the pressing keys and the pneumatic switches, and the cucurbit flute is 36, so that the cucurbit flute has 3 octaves.

The top end of the back plate 10 is connected with a cover plate 18 through a hinge 17. The cover plate has a shape matching the shape of the opening in the top of the cabinet, and the cover plate 18 covers the top of the cabinet when it is lowered.

And a pitch name corresponding to the pitch mode of each cucurbit flute is marked on each white key.

When the musical instrument is played, a mouth of a player contains a blowing nozzle 7 to blow air, the pressing keys 1 at corresponding pitch positions are pressed according to a music score, and then the cucurbit flute which is correspondingly connected is opened through the pneumatic switch to drive the cucurbit flute to make a sound, so that the playing of the cucurbit flute music is finished.

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 (8)

1. A whole-gamut multi-sound cucurbit flute playing device is characterized in that the playing device comprises a plurality of pressing keys, the plurality of pressing keys comprise a plurality of white keys and a plurality of black keys, the tail end of each pressing key is fixed on a fixing frame through a connecting sheet, pneumatic switches are arranged below each white key and each black key respectively, the bottom ends of all the pneumatic switches are vertically arranged on a gas collecting box and communicated with the gas collecting box, the top ends of the pneumatic switches are in contact with the pressing keys, the front end of the gas collecting box is provided with a gas guide tube mounting hole, one end of a gas guide tube is arranged on the gas guide tube mounting hole and communicated with the gas collecting box, the other end of the gas guide tube is provided with a blowing nozzle, the gas outlet end of each pneumatic switch is connected with cucurbit flutes through a communicating pipe respectively, the cucurbit flutes are arranged according to twelve equal temperaments of different octaves, and the front face of a main sound tube of the cucurbit, The fourth hole, the fifth hole, the sixth hole and the seventh hole on the back of the main sound tube of each cucurbit flute are sealed, so that each cucurbit flute can emit mode-adjusting sound of the third hole of each cucurbit flute;

the cucurbit flute playing device further comprises a musical box, wherein the musical box comprises a back plate, a front plate, a left side plate, a right side plate and a bottom plate, the back plate and the front plate are arranged in parallel, the left side plate and the right side plate are respectively arranged at the left end and the right end between the back plate and the front plate and are respectively connected with the back plate and the front plate to form a box body structure in a surrounding manner, and the peripheral edge of the bottom plate is respectively connected with the bottom edges of the back plate, the front plate, the left side plate and the right side plate to seal the bottom of the box body;

the upper end of musical instrument incasement rear side is arranged in to the mount level, and the left and right both ends face of mount is fixed respectively on the left side board, on the medial surface of right side limit, the rear end face of mount is fixed mutually with the backplate, the left and right both ends face of gas collection case is fixed respectively on the left side board, on the medial surface of right side board, and be equipped with communicating pipe fixed plate respectively at the preceding terminal surface bottom of gas collection case and rear end face bottom, be equipped with a plurality of spacing holes that are used for communicating pipe to pass on every communicating pipe fixed plate, the bottom of communicating pipe passes spacing hole and arranges the inboard of communicating pipe fixed plate in, be equipped with the fourth through-hole that is used for the air duct to wear out in the air duct mounting hole of front bezel and gas collection case front end department of.

2. The whole-range polyphonic cucurbit flute playing device as claimed in claim 1, wherein the pneumatic switch comprises an outer shell, a push rod, an upper sealing silica gel pad, a lower sealing silica gel pad, an upper top cover, and a spring plate, the outer shell is a hollow cylinder structure, a first annular boss and a second annular boss are arranged in the outer shell from top to bottom, the push rod vertically penetrates through a first through hole of the first annular boss and a second through hole of the second annular boss, the upper end of the push rod is sleeved with the upper sealing silica gel pad, the bottom end of the upper top cover is installed at the top end of the outer shell in a threaded manner, the upper sealing silica gel pad is tightly fixed between the bottom end surface of the upper top cover and the upper end surface of the first annular boss, a third through hole for the push rod to penetrate out is arranged at the center of the upper top cover, the top end of the push rod penetrates out of the third through hole, the lower end of the, a first gasket and a first fixing nut are arranged below the lower sealing silica gel pad, the first fixing nut is fixed with the ejector rod in a threaded mode to limit the lower sealing silica gel pad, an elastic sheet is arranged outside the outer shell, the top end of the elastic sheet is arranged on the ejector rod penetrating out of the upper top cover, a second gasket and a second fixing nut are arranged above the elastic sheet, the second fixing nut and the ejector rod are fixed in a threaded mode to limit the elastic sheet between the upper top cover and the second fixing nut, the bottom end of the elastic sheet is fixed on one side of the shell body of the outer shell through a screw, and a gap is formed between the elastic sheet and the upper end face of the upper top cover; the outer shell body is provided with an air outlet pipe protruding outwards as an air outlet end, the inner side of the air outlet pipe axially penetrates through a second annular boss and is communicated with a second through hole, a cavity is arranged below the second annular boss in the outer shell, the bottom end face of the outer shell is provided with an air inlet, and the periphery of the bottom end of the outer shell is provided with external threads used for being connected with the air collection box;

under the natural state, the top of ejector pin and the key bottom face of pressing contact naturally, the up end of lower sealing silica gel pad closely laminates with the lower terminal surface of second ring boss, the top bounce top of shell fragment is in second gasket bottom, when pressing the key down, the ejector pin downstream, thereby drive the separation between sealing silica gel pad and the second ring boss bottom face down, pneumatic switch opens, the top of shell fragment moves down between first gasket and last top cap along with the atress of ejector pin this moment, when loosening the key of pressing, shell fragment self elasticity drives ejector pin upward movement and resumes to the initial condition, resume the laminating between lower sealing silica gel pad and the second ring boss bottom face this moment, pneumatic switch closes.

3. The full-range polyphonic calabash musical instrument as claimed in claim 1, wherein the air collection box is a rectangular box structure, air holes are formed on the upper end face of the box corresponding to each pneumatic switch, a ring of annular protrusion is vertically formed on the outer periphery of each air hole, internal threads are formed on the inner periphery of the annular protrusion, the bottom end of each pneumatic switch is matched with the internal threads through external threads to vertically fix the pneumatic switch with the annular protrusion, and sealant is applied to the joint to ensure sealing, the air holes formed in the box body and the air inlets formed on the bottom end face of the outer shell of the pneumatic switch enable air flow blown into the air collection box from the air guide tube to flow into the pneumatic switch when the pneumatic switch is opened, and finally reach the calabash musical instrument along the air outlet tube to make the calabash musical instrument sound.

4. The full-range polyphonic cucurbit flute playing device as claimed in claim 1, wherein the fourth hole, the fifth hole, the sixth hole of the front face of the main sound tube of each cucurbit flute and the seventh hole of the back face of the main sound tube are sealed with latex cloth.

5. The full-range polyphonic cucurbit flute playing device as claimed in claim 1, wherein the communicating pipe is hermetically connected with the air outlet pipe of the pneumatic switch and the cucurbit flute blowing nozzle.

6. The full-range polyphonic cucurbit flute playing device as claimed in claim 1, wherein the air duct is hermetically connected with the air duct mounting hole of the air-collecting box.

7. The full-scale multi-sound cucurbit flute playing device as claimed in claim 1, wherein the cucurbit flute comprises 1-7 octaves of cucurbit flute, each octave comprises 12 scales of cucurbit flute, the number of the cucurbit flute is between 12 and 84, and the number of the pressing keys and the number of the pneumatic switches respectively correspond to the number of the cucurbit flutes.

8. The full-range polyphonic cucurbit flute playing device as claimed in claim 1, wherein a cover plate is attached to a top end of the back plate through a hinge.

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