CN212585170U

CN212585170U - Air pipe capable of adjusting air volume

Info

Publication number: CN212585170U
Application number: CN202021499077.5U
Authority: CN
Inventors: 李顺刚; 李广灵
Original assignee: Nanjing Jiawei Biological Environmental Protection Technology Co ltd
Current assignee: Nanjing Jiawei Biological Environmental Protection Technology Co ltd
Priority date: 2020-07-25
Filing date: 2020-07-25
Publication date: 2021-02-23
Anticipated expiration: 2030-07-25

Abstract

The utility model relates to an air pipe of adjustable amount of wind, it relates to an air pipe, and it includes the body, the body is close to self mouth of pipe department and is equipped with and is used for sealing the orificial tripe spare of body, tripe spare includes that a plurality of sets gradually the rotation pole on the body inside wall, be equipped with rotor blade on the lateral wall of rotation pole, it is adjacent rotor blade contacts each other. The effect of this application lies in can reducing the possibility that the mosquito got into the pipe body.

Description

Air pipe capable of adjusting air volume

Technical Field

The present application relates to an air duct, and more particularly, to an air duct with adjustable air volume.

Background

The fresh air system is a system for discharging indoor original dirty air outdoors while providing fresh air indoors, and generally comprises a fan, an air inlet pipe connected with an air inlet of the fan and an air outlet pipe connected with an air outlet of the fan.

Chinese patent that the publication number is CN209147359U discloses a haze fresh air system is removed to negative pressure formula, uses in air purification equipment's mechanical field, has solved the technical problem in dust rainwater entering exhaust pipe, and its technical scheme main points are including installing indoor air quality sensor, installing filter on the window, passing wall body and outdoor intercommunication the air exit, connecting the air exhaust device on the air exit, the cover is equipped with the exhaust pipe on the air exit, be connected with the circular shape fixed plate on the exhaust pipe, set up the air vent of a plurality of circumference interval equipartitions on the baffle, one side of fixed plate is equipped with a plurality of and big blades such as air vent, and is a plurality of the blade is all fixed in the pivot, the pivot rotates to be connected on the fixed plate and the axis of pivot passes the centre of a circle of fixed plate.

To the correlation technique among the above-mentioned, when using the new trend system among the prior art, the air exhauster carries wind to the exhaust pipe along the intake stack in, and the exhaust is outdoor at last, but in practical application, when stopping using the new trend system, the intake stack is in open state, and indoor mosquito easily gets into in the intake stack.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem in the easy entering air inlet duct of mosquito, this application provides the tuber pipe of adjustable amount of wind.

The application provides an air pipe of adjustable amount of wind adopts following technical scheme:

the utility model provides an air pipe of adjustable amount of wind, includes the body, the body is close to self mouth of pipe department and is equipped with and is used for sealing the orificial tripe spare of body, tripe spare includes that a plurality of sets gradually the rotation pole on the body inside wall, be equipped with rotor blade on the lateral wall of dwang, it is adjacent rotor blade contacts each other.

Through adopting above-mentioned technical scheme, when the air exhauster carries out the induced draft, be the negative pressure state in the body, the outer air promotion rotating vane of body rotates to can open the body mouth of pipe, and then with in the air suction pipe body, when stopping the induced draft, rotating vane resets, and rotating vane contacts each other, thereby can seal the mouth of pipe of body, reduces the possibility that the mosquito got into in the body.

Preferably, one side of the rotating blade, which is close to the exhaust fan, is provided with a connecting rope, and one side of the connecting rope, which is far away from the rotating blade, is provided with a floating ball.

Through adopting above-mentioned technical scheme, when the air exhauster carries out the induced draft, drive the bobble that floats and move backward to can stimulate rotor blade and rotate, rotate to this can convenient and fast's pulling rotor blade and open.

Preferably, the lateral wall of body is equipped with the connecting plate, be equipped with the through-hole that a plurality of confession was connected the rope and passed on the lateral wall of connecting plate, the ball that floats is located the one end that the rope passed the through-hole of connecting.

Through adopting above-mentioned technical scheme, utilize the through-hole to carry on spacingly to connecting the rope, be favorable to reducing and connect intertwine between the rope, lead to the possibility that the ball that floats can't float.

Preferably, the wind power generator further comprises an auxiliary ventilation assembly arranged on the pipe body, and an adjusting assembly used for adjusting wind power is arranged in the pipe body.

Through adopting above-mentioned technical scheme, taking place the card when the dwang and pause, when rotor blade can't rotate, utilize supplementary ventilation assembly, thereby the body can continue to ventilate to utilize adjusting part to control the body draught pipe diameter, thereby can adjust wind-force.

Preferably, the side wall of the pipe body is provided with an auxiliary vent hole, one side of the auxiliary vent hole close to the axis of the pipe body is provided with a fixing ring, and one side of the fixing ring far away from the axis of the pipe body is provided with a plurality of push-pull springs;

the auxiliary ventilation assembly comprises a movable frame which is arranged on the side wall of the auxiliary ventilation hole in a sliding mode, the movable frame is connected with a push-pull spring, a plurality of rotating shafts are rotatably arranged on the side wall of the movable frame, the rotating shafts are arranged along the axial direction of the pipe body, fixed blades and auxiliary blades are respectively arranged on the side wall of each rotating shaft, the fixed blades extend towards one side of the outer side of the pipe body, and the auxiliary blades and adjacent fixed blades are arranged in an overlapping mode;

one side of the rotating shaft, which is close to the axis of the tube body, is provided with a connecting rod, a moving rod is rotatably arranged between the adjacent connecting rods, the connecting rod, which is close to one side of the auxiliary vent hole, is provided with a touch rod, and one end, which is far away from the moving rod, of the touch rod is hinged with a fixed plate;

a supporting plate is arranged on one side, close to the touch rod, of the fixing ring, a fixing block is arranged on the side wall of the supporting plate, a guide inclined plane for the touch rod to slide is arranged on the fixing block, an electromagnet for adsorbing the fixing plate is arranged on one side, away from the supporting plate, of the fixing block, and a proximity switch for conducting the electromagnet is arranged on one side, away from the guide inclined plane, of the fixing block;

the utility model discloses a touch-control switch, including fixed block, action lever, power pole, stay cord, power pole, dead lever, power pole, stay cord, power pole, stay cord and proximity switch, the fixed block is kept away from one side of keeping away from to the feeler lever and is equipped with the dead lever, it is equipped with the power pole to rotate on the lateral wall of dead lever, be equipped with the torsional spring on the lateral wall of dead lever, the one end and the power pole of torsional spring are connected, the other end is connected with the dead lever, the one end of power pole is equipped with the stay cord, be equipped.

By adopting the technical scheme, the exhaust fan sucks air to drive the floating small balls to drift to one side of the exhaust fan, so that the pull ropes drift to one side of the exhaust fan along the limiting pipe to drive the power rod to rotate, the torsion spring is unfolded to store force, and the power rod is contacted with the proximity switch, so that the electromagnet is switched on;

when the dwang takes place the card and pause, when rotor blade can't rotate, the atmospheric pressure in the body reduces to become the negative pressure this moment, atmospheric pressure outside the body is greater than the atmospheric pressure in the body, thereby promote to remove the frame and remove to the body, the extrusion push-and-pull spring, thereby promote to touch-sensitive pole and remove, utilize the direction inclined plane to lead and the rebound to the touch-sensitive pole, thereby the fixed plate shifts up and adsorbs and then fixes with the electro-magnet, it is connected with the connecting rod rotation to utilize the carriage release lever to rotate simultaneously, thereby can drive the axis of rotation and rotate, and then can drive fixed blade and auxiliary blade and take place to rotate, with this auxiliary ventilation hole can be opened.

Preferably, a folding sealing pipe is arranged between the movable frame and the fixed ring.

Through adopting above-mentioned technical scheme, utilize folding sealed tube, be favorable to improving the leakproofness of body, thereby the body can form the negative pressure smoothly, thereby removes the frame and can receive the pressure of atmospheric pressure and remove to the body.

Preferably, an installation ring groove is formed in the inner side wall of the pipe body and is positioned on one side, away from the rotating rod, of the auxiliary vent hole, a limiting ring is arranged on the wall of the installation ring groove in a ring fit mode, and a plurality of moving grooves are uniformly distributed in the limiting ring along the circumferential direction of the limiting ring;

the adjusting assembly comprises a rotating ring which is rotatably arranged on one side, away from the moving groove, of the mounting ring groove, a plurality of sector plates for sealing the pipe orifices are arranged on one side, close to the moving groove, of the rotating ring, the adjacent sector plates are mutually contacted, moving blocks sliding in the moving groove are arranged on the side walls of the sector plates, sliding blocks are arranged on one sides, away from the moving blocks, of the sector plates, and arc-shaped grooves for the sliding blocks to slide are arranged on the side walls of the rotating ring;

the side wall of the rotating ring is provided with a plurality of shifting blocks, and the side wall of the pipe body is provided with a through groove for the shifting blocks to rotate.

Through adopting above-mentioned technical scheme, when the wind-force in the body needs to be adjusted, rotate the shifting block, drive the rotating ring and rotate to drive the sliding block and slide along the arc wall, the movable block removes in the shifting chute simultaneously, can promote the sector plate to slide with this, with this can change body internal diameter size, with this demand that can adapt to different users to body wind-force.

Preferably, be equipped with folding sealing plate between the cell wall that shifting block and logical groove, be equipped with the seal groove that supplies folding sealing plate to stretch into on the cell wall that leads to the groove, folding sealing plate contradicts with the cell wall of seal groove.

Through adopting above-mentioned technical scheme, utilize the sealed logical groove of folding closing plate, be favorable to increasing the sealing performance of body.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the exhaust fan exhausts air, the rotating rod is driven to rotate, so that the rotating blades are driven to rotate, the pipe orifice of the pipe body can be opened, when air exchange is not needed, the air exhaust is stopped, the rotating blades are reset, and the adjacent rotating blades are contacted, so that the pipe orifice of the pipe body can be sealed, and the possibility of mosquitoes entering the pipe body can be reduced;

2. when air is pumped, the floating small ball floats, so that the rotating blade can be pulled to rotate, and the possibility that the rotating blade is blocked and cannot rotate reversely is reduced;

3. utilize supplementary ventilation subassembly to carry out supplementary ventilation, make things convenient for the body to ventilate.

Drawings

Fig. 1 is a schematic structural diagram of an air duct capable of adjusting air volume according to an embodiment of the present application.

Fig. 2 is a schematic sectional view showing a plane a-a in fig. 1.

FIG. 3 is a schematic cross-sectional view of the plane B-B in FIG. 1.

Fig. 4 is a schematic structural view showing the auxiliary ventilation assembly.

Fig. 5 is an enlarged view of a portion a in fig. 4.

Fig. 6 is a schematic cross-sectional view of the plane C-C in fig. 1.

Description of reference numerals: 6. a pipe body; 60. an auxiliary vent; 61. a fixing ring; 62. a push-pull spring; 63. folding the sealing tube; 64. mounting a ring groove; 65. a moving groove; 66. a through groove; 67. a sealing groove; 68. a limiting ring; 7. a louver; 70. rotating the rod; 71. a limit baffle; 72. a rotor blade; 73. connecting ropes; 74. a floating pellet; 75. a connecting plate; 76. a through hole; 8. an auxiliary ventilation assembly; 80. moving the frame; 81. a rotating shaft; 82. a fixed blade; 83. an auxiliary blade; 84. a connecting rod; 85. a travel bar; 86. a touch bar; 87. a fixing plate; 88. a support plate; 89. a fixed block; 800. a guide slope; 801. an electromagnet; 802. a proximity switch; 803. fixing the rod; 804. a power rod; 805. a torsion spring; 806. pulling a rope; 807. a limiting pipe; 808. floating the pellets; 9. an adjustment assembly; 90. a rotating ring; 91. a sector plate; 92. a moving block; 93. a slider; 94. an arc-shaped slot; 95. shifting blocks; 96. and folding the sealing plate.

Detailed Description

The embodiment of the application discloses tuber pipe of adjustable amount of wind.

Referring to fig. 1, the air pipe capable of adjusting air volume comprises a pipe body 6, wherein a shutter 7 for closing a pipe orifice of the pipe body 6 and an auxiliary ventilation assembly 8 arranged on the side wall of the pipe body 6 are arranged at a position, close to the pipe orifice, of the pipe body 6, and an adjusting assembly 9 for adjusting wind power is arranged in the pipe body 6 and at one side, far away from the shutter 7, of the auxiliary ventilation assembly 8; when the exhaust fan sucks air, the pipe body 6 is opened by the shutter 7 for ventilation, and when the air suction is stopped, the opening of the pipe body 6 is closed by the shutter 7, so that the opening of the pipe can be closed, and the possibility of mosquitoes entering the pipe body 6 is reduced; when the shutter 7 is jammed and damaged, the auxiliary ventilation assembly 8 is used for ventilation, so that the pipe body 6 can be continuously ventilated, and the possibility that the pipe body 6 cannot ventilate is reduced; when ventilation is performed, the wind power is adjusted by the adjusting assembly 9, so that the convenience of use can be improved.

Referring to fig. 2, the louver 7 includes a plurality of rotating rods 70 sequentially disposed on the inner sidewall of the tube 6, the rotating blades 72 are disposed on the sidewall of the rotating rods 70, adjacent rotating blades 72 contact each other, a limiting baffle 71 is disposed in the tube 6, and the limiting baffle 71 contacts the rotating blade 72 located at the lowest position; is favorable for increasing the sealing performance of the pipe body 6.

Referring to fig. 2, a connecting plate 75 is arranged on the inner side wall of the pipe body 6 along the radial direction of the pipe body, a plurality of through holes 76 are arranged on the connecting plate 75, a connecting rope 73 is arranged on one side of the rotating blade 72 close to the connecting plate 75, one side of the connecting rope 73 far away from the rotating blade 72 penetrates through the through holes 76, and a floating small ball 74 is arranged at one end of the connecting rope 73 penetrating through the through holes 76; when the exhaust fan performs air suction, the air pressure in the pipe body 6 is reduced, the air pressure outside the pipe body 6 pushes the rotating blade 72 to rotate, meanwhile, the air in the pipe body 6 drives the floating small ball 74 to float, and the connecting rope 73 is pulled, so that power is provided for the rotation of the rotating blade 72, and the pipe body 6 can be conveniently and quickly opened for ventilation; when the exhaust fan stops sucking air, the rotating blades 72 are reset, the adjacent rotating blades 72 are contacted with each other, and the rotating blades 72 are also contacted with the limiting baffle 71, so that the pipe opening of the pipe body 6 can be sealed, and the possibility of mosquitoes entering the pipe body 6 is reduced.

Referring to fig. 3 and 4, be equipped with supplementary ventilation hole 60 on the lateral wall of body 6, the one side that is close to body 6 axis on the supplementary ventilation hole 60 pore wall is equipped with solid fixed ring 61, and one side that solid fixed ring 61 kept away from body 6 axis is equipped with folding sealed tube 63, and one side that solid fixed ring 61 kept away from body 6 axis is equipped with a plurality of push-and-pull spring 62, and push-and-pull spring 62 is located one side that folding sealed tube 63 kept away from supplementary ventilation hole 60 pore wall.

Referring to fig. 3 and 4, the auxiliary ventilation assembly 8 includes a movable frame 80 slidably disposed on a side wall of the auxiliary ventilation hole 60, and one side of the movable frame 80 near the axis of the pipe body 6 is connected to the push-pull spring 62 and the folding sealing pipe 63; the folding sealing tube 63 is used for connecting the movable frame 80 and the fixing ring 61, so that the sealing performance between the movable frame 80 and the tube body 6 is improved, and the possibility of air leakage of the tube body 6 is reduced.

Referring to fig. 3 and 4, a plurality of rotating shafts 81 are rotatably disposed on a side wall of the moving frame 80, the rotating shafts 81 are disposed along an axial direction of the tube body 6, a fixed blade 82 and an auxiliary blade 83 are respectively disposed on a side wall of each rotating shaft 81, the fixed blade 82 extends to one side of an outer side of the tube body 6, the auxiliary blade 83 extends to one side of an inner side of the tube body 6, and the auxiliary blade 83 and the adjacent fixed blade 82 are disposed in an overlapping manner; the entrance of mosquitoes into the pipe body 6 from the gap between the auxiliary blade 83 and the fixed blade 82 is facilitated to be reduced.

Referring to fig. 4 and 5, a connecting rod 84 is disposed on one side of the rotating shaft 81 close to the axis of the pipe body 6, a moving rod 85 is rotatably disposed between adjacent connecting rods 84, a contact rod 86 is disposed on the connecting rod 84 close to one side of the auxiliary vent 60, one end of the contact rod 86 far away from the connecting rod 84 extends toward one side of the axis of the branch pipe 6, and a fixing plate 87 is hinged to one end of the contact rod 86 far away from the moving rod 85.

Referring to fig. 4 and 5, a supporting plate 88 is disposed on one side of the fixing ring 61 close to the touch rod 86, a fixing block 89 is disposed on a side wall of the supporting plate 88, a guiding inclined plane 800 for sliding the touch rod 86 is disposed on the fixing block 89, an electromagnet 801 for adsorbing the fixing plate 87 is disposed on one side of the fixing block 89 far away from the supporting plate 88, and a proximity switch 802 for conducting the electromagnet 801 is disposed on one side of the fixing block 89 far away from the guiding inclined plane 800.

Referring to fig. 4 and 5, a fixing rod 803 is disposed on one side of the fixing block 89 away from the touch rod 86, an axis of the fixing rod 803 is perpendicular to an axis of the tube body 6, a power rod 804 is rotatably disposed on a side wall of the fixing rod 803, a torsion spring 805 is disposed on a side wall of the fixing rod 803, one end of the torsion spring 805 is connected to the power rod 804, and the other end of the torsion spring is connected to the fixing rod 803.

Referring to fig. 4 and 5, a pull rope 806 is arranged at one end of the power rod 804, a limiting pipe 807 through which the pull rope 806 passes is arranged on the side wall of the fixed block 89, the axis of the limiting pipe 807 is parallel to the axis of the tube body 6, the limiting pipe 807 is positioned below the joint of the power rod 804 and the pull rope 806, the limiting pipe 807 is positioned at one side of the fixed rod 803 far away from the proximity switch 802, a floating small ball 808 is arranged at one end of the pull rope 806 far away from the limiting pipe 807, and one end of the power rod 804 far away from the pull rope 806 is in contact with; when the exhaust fan sucks air, the floating ball 808 is driven to drift towards one side of the exhaust fan, so that the pull rope 806 is driven to move along one side of the limiting pipe 807, the power rod 804 is driven to rotate, the torsion spring 805 expands to store power, the power rod 804 is close to the proximity switch 802, the proximity switch 802 conducts the electromagnet 801, and the electromagnet 801 generates magnetism.

Referring to fig. 4 and 5, can't rotate when rotor blade 72 takes place, the unable ventilation of 6 mouth of pipe departments of body, produce the negative pressure in the body 6, the outer atmospheric pressure of body 6 is greater than the internal atmospheric pressure of body 6, thereby can promote to remove frame 80 and remove to one side in the body 6, push-and-pull spring 62 receives the extrusion and holds up the power, thereby remove frame 80 and drive axis of rotation 81 and remove, thereby axis of rotation 81 drives connecting rod 84 and conflict pole 86 and removes, conflict pole 86 and fixed plate 87 shift up along direction inclined plane 800, with this can drive axis of rotation 81 and rotate, and then drive fixed blade 82 and auxiliary blade 83 and take place to rotate, open auxiliary ventilation hole 60, with this can assist rotor blade 72 and ventilate.

Referring to fig. 4 and 5, after the suction fan stops sucking air, the floating ball 74 falls down, the torsion spring 805 is reset to drive the power rod 804 to rotate, the electromagnet 801 is de-energized to loosen the fixing plate 87, the push-pull spring 62 pushes the movable frame 80 to reset, the interference rod 86 and the fixing block 89 move down along the guide slope 800 to drive the rotating shaft 81 to rotate and reset, and the fixing blade 82 and the auxiliary blade 83 can reset, thereby automatically closing the auxiliary ventilation hole 60.

Referring to fig. 6, be equipped with installation annular groove 64 on the body 6 inside wall, installation annular groove 64 is located supplementary ventilation hole 60 and keeps away from the orificial one side of body 6, and the cell wall of installation annular groove 64 is fitted with a contraceptive ring 68, and on the contraceptive ring 68 and along self circumference equipartition have a plurality of shifting chute 65, shifting chute 65 one side is close to the internal perisporium that spacing ring 68 periphery wall, opposite side are close to spacing ring 68.

Referring to fig. 6, the adjusting assembly 9 includes a rotating ring 90 rotatably disposed on one side of the mounting ring groove 64 away from the moving groove 65, one side of the rotating ring 90 close to the moving groove 65 is provided with a plurality of sector plates 91 for sealing the pipe orifice, adjacent sector plates 91 are in contact with each other, a moving block 92 sliding in the moving groove 65 is disposed on a side wall of the sector plate 91, one side of the sector plate 91 far from the moving block 92 is provided with a sliding block 93, a side wall of the rotating ring 90 is provided with an arc-shaped groove 94 for sliding the sliding block 93, one side of the arc-shaped groove 94 is close to an outer peripheral wall of the rotating ring 90, and the other.

Referring to fig. 6, a plurality of shifting blocks 95 are arranged on the side wall of the rotating ring 90, a through groove 66 for the shifting blocks 95 to rotate is arranged on the side wall of the pipe body 6, the through groove 66 is arranged along the circumferential direction of the pipe body 6, and the arc length of the shifting blocks 95 is smaller than that of the through groove 66; when using body 6, rotate shifting block 95 to drive swivel becket 90 and rotate, can drive sliding block 93 with this and rotate in arc groove 94, and then can drive sector plate 91 and expand or close, can change the internal diameter of body 6 with this, thereby can change wind-force size, improve the convenience of using.

Referring to fig. 6, a folding sealing plate 96 is arranged between the shifting block 95 and the groove wall of the through groove 66, a sealing groove 67 into which the folding sealing plate 96 extends is arranged on the groove wall of the through groove 66, and the folding sealing plate 96 abuts against the groove wall of the sealing groove 67; when moving paddle 95, by sliding folding sealing plate 96 in sealing slot 67, the possibility of air leakage from through slot 66 is reduced, which is beneficial to increase the sealing performance of tubular body 6.

The implementation principle of the air pipe of this application embodiment adjustable amount of wind does: bleed when the air exhauster, drive dwang 70 and rotate to drive rotor blade 72 and rotate, can open the 6 mouths of tubes of body then, when need not taking a breath, stop the convulsions, rotor blade 72 resets, and rotor blade 72 contacts each other, thereby can seal the 6 mouths of tubes of body, with this possibility that can reduce the mosquito and get into in the body 6.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an air pipe of adjustable amount of wind which characterized in that: including body (6), body (6) are close to self mouth of pipe department and are equipped with and are used for sealing orificial tripe spare (7) of body (6), tripe spare (7) include that a plurality of sets gradually and rotate pole (70) on body (6) inside wall, be equipped with rotor blade (72) on the lateral wall of dwang (70), it is adjacent rotor blade (72) are contact each other.

2. The air pipe capable of adjusting the air volume according to claim 1, wherein: one side of the rotating blade (72) close to the exhaust fan is provided with a connecting rope (73), and one side of the connecting rope (73) far away from the rotating blade (72) is provided with a floating small ball (74).

3. The air pipe capable of adjusting the air volume according to claim 2, wherein: be equipped with connecting plate (75) on the lateral wall of body (6), be equipped with a plurality of through-hole (76) that supply to connect rope (73) to pass on the lateral wall of connecting plate (75), unsteady bobble (74) are located the one end that connects rope (73) and pass through-hole (76).

4. The air pipe capable of adjusting the air volume according to claim 1, wherein: the wind power generator is characterized by further comprising an auxiliary ventilation assembly (8) arranged on the pipe body (6), and an adjusting assembly (9) used for adjusting wind power is arranged in the pipe body (6).

5. The air pipe capable of adjusting the air volume according to claim 4, wherein: an auxiliary vent hole (60) is formed in the side wall of the tube body (6), a fixing ring (61) is arranged on one side, close to the axis of the tube body (6), of the auxiliary vent hole (60), and a plurality of push-pull springs (62) are arranged on one side, far away from the axis of the tube body (6), of the fixing ring (61);

the auxiliary ventilation assembly (8) comprises a movable frame (80) which is arranged on the side wall of the auxiliary ventilation hole (60) in a sliding mode, the movable frame (80) is connected with a push-pull spring (62), a plurality of rotating shafts (81) are rotatably arranged on the side wall of the movable frame (80), the rotating shafts (81) are arranged along the axial direction of the pipe body (6), fixed blades (82) and auxiliary blades (83) are respectively arranged on the side wall of each rotating shaft (81), the fixed blades (82) extend towards one side of the outer side of the pipe body (6), and the auxiliary blades (83) and the adjacent fixed blades (82) are arranged in an overlapped mode;

one side, close to the axis of the pipe body (6), of the rotating shaft (81) is provided with a connecting rod (84), a moving rod (85) is rotatably arranged between every two adjacent connecting rods (84), a touch rod (86) is arranged on the connecting rod (84) close to one side of the auxiliary vent hole (60), and one end, far away from the moving rod (85), of the touch rod (86) is hinged with a fixing plate (87);

a supporting plate (88) is arranged on one side, close to the touch rod (86), of the fixing ring (61), a fixing block (89) is arranged on the side wall of the supporting plate (88), a guide inclined plane (800) for the touch rod (86) to slide is arranged on the fixing block (89), an electromagnet (801) for adsorbing a fixing plate (87) is arranged on one side, far away from the supporting plate (88), of the fixing block (89), and a proximity switch (802) for conducting the electromagnet (801) is arranged on one side, far away from the guide inclined plane (800), of the fixing block (89);

one side that the fixed block (89) kept away from and support feeler lever (86) is equipped with dead lever (803), it is equipped with power pole (804) to rotate on the lateral wall of dead lever (803), be equipped with torsional spring (805) on the lateral wall of dead lever (803), the one end and power pole (804) of torsional spring (805) are connected, the other end is connected with dead lever (803), the one end of power pole (804) is equipped with stay cord (806), be equipped with spacing pipe (807) that supply stay cord (806) to pass on the lateral wall of fixed block (89), spacing pipe (807) are located the below of power pole (804) and stay cord (806) junction, the one end that stay cord (806) passed spacing pipe (807) is equipped with and floats bobble (808), the one end and proximity switch (802) contact that stay cord (806) were kept away from in power pole (804).

6. The air pipe capable of adjusting the air volume according to claim 5, wherein: a folding sealing pipe (63) is arranged between the movable frame (80) and the fixed ring (61).

7. The air pipe capable of adjusting the air volume according to claim 5, wherein: an installation ring groove (64) is formed in the inner side wall of the pipe body (6) and located on one side, away from the rotating rod (70), of the auxiliary vent hole (60), a limiting ring (68) is annularly arranged on the wall of the installation ring groove (64), and a plurality of moving grooves (65) are uniformly distributed in the limiting ring (68) along the circumferential direction of the limiting ring;

the adjusting assembly (9) comprises a rotating ring (90) which is rotatably arranged on one side, away from the moving groove (65), of the mounting ring groove (64), a plurality of sector plates (91) used for sealing the pipe orifice are arranged on one side, close to the moving groove (65), of the rotating ring (90), the adjacent sector plates (91) are in mutual contact, a moving block (92) which slides in the moving groove (65) is arranged on the side wall of each sector plate (91), a sliding block (93) is arranged on one side, away from the moving block (92), of each sector plate (91), and an arc-shaped groove (94) for sliding of the sliding block (93) is formed in the side wall of the rotating ring (90);

the side wall of the rotating ring (90) is provided with a plurality of shifting blocks (95), and the side wall of the pipe body (6) is provided with a through groove (66) for the shifting blocks (95) to rotate.

8. The air pipe capable of adjusting the air volume according to claim 7, wherein: be equipped with folding sealing plate (96) between shifting block (95) and the cell wall that leads to groove (66), be equipped with on the cell wall that leads to groove (66) and supply folding sealing plate (96) to stretch into seal groove (67), folding sealing plate (96) contradict with the cell wall of seal groove (67).