CN114233657B

CN114233657B - High-efficient cabinet type centrifugal fan

Info

Publication number: CN114233657B
Application number: CN202111498583.1A
Authority: CN
Inventors: 徐建锋; 张磊; 徐洪海
Original assignee: Zhejiang Shangfeng High Tech Special Wind Industry Co ltd
Current assignee: Zhejiang Shangfeng High Tech Special Wind Industry Co ltd
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2023-09-12
Anticipated expiration: 2041-12-09
Also published as: CN114233657A

Abstract

The invention discloses a high-efficiency cabinet type centrifugal fan which comprises a cabinet body, a ventilating duct fixedly arranged on the cabinet body, an air inlet and an air outlet which are arranged on the ventilating duct, a baffle plate which is positioned at the air inlet and fixedly arranged on the ventilating duct, a swivel which is rotatably arranged on the baffle plate, an air supply device fixedly arranged on the swivel, an auxiliary device which is arranged on the baffle plate and used for assisting the air supply device, and a driving device which is arranged on the cabinet body and used for driving the air supply device to operate.

Description

High-efficient cabinet type centrifugal fan

Technical Field

The invention relates to the technical field of fans, in particular to a high-efficiency cabinet type centrifugal fan.

Background

According to the development situation of the current domestic industry and civil buildings, pipelines of a ventilation system are more and more complex, and requirements on ventilation of the buildings are higher and higher. In the fire-fighting ventilation system of the industry and civil engineering, because the pipeline of the system is complex, the space is limited, and the coverage area is large, the fire-fighting fan equipment demand quantity for high pressure, small space occupation and flexible change of the air outlet angle is increased sharply. As major equipment for fire protection systems, the major product applications on the market today fall into two categories: one is traditional axial fan, impeller direct-connected structure, air current flow along the axial direction, have fixed air current direction, small characteristic, but the fan pressure is generally lower; one is traditional centrifugal fan, and the transmission mode adopts belt drive, box type's structure generally to make the play fan angle changeable, has nimble air current direction, the great characteristics of pressure range, but the structure is complicated relatively, the volume is great, receive the resistance big in the air supply process, and air supply efficiency remains to improve, consequently, the fire control fan equipment of needs now should have: simple structure, high pressure, small volume, flexible air supply direction, convenient manufacture, convenient maintenance and the like. Therefore, the defects of low pressure, fixed airflow direction, complex structure and large volume of the traditional axial flow fan and low air supply efficiency of the traditional centrifugal fan are overcome.

Disclosure of Invention

The invention provides a high-efficiency cabinet type centrifugal fan for overcoming the defects in the prior art.

In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a high-efficient cabinet type centrifugal fan, includes the cabinet body, the air pipe who locates on the cabinet body fixedly, locate air intake and air outlet on the air pipe, be located air intake department and locate the baffle on the air pipe fixedly, rotate the swivel on locating the baffle, the air supply unit who locates on the swivel fixedly, locate the auxiliary device that is used for assisting air supply unit on the baffle, locate the drive arrangement that is used for driving air supply unit operation on the cabinet body; the air supply device comprises a front disc fixedly arranged on the swivel, a plurality of blades annularly distributed on the front disc at equal intervals, a rear disc fixedly arranged on the plurality of blades at the same time, a shaft sleeve fixing plate fixedly arranged on the rear disc, a steel pipe fixedly arranged on the shaft sleeve fixing plate, and a shaft sleeve with one end inserted into the steel pipe; the shaft sleeve and the shaft sleeve fixing plate are fixed together through a plurality of bolts distributed in an equidistant annular mode; the rear disc is spherical; the blade is of a flat plate type and is arranged between the rear disc and the front disc; the air outlet angle is adjustable.

The front disc is arranged at the top of the blade, is integrally conical and forms a complete airflow channel with the rear disc of the blade.

The driving device comprises a main shaft fixedly arranged on the shaft sleeve, a conical tube fixedly sleeved on the main shaft, a first through hole arranged on the main shaft, a rotating shaft communicated with the main shaft and arranged on the main shaft, and a first motor fixedly arranged on the cabinet body and used for driving the rotating shaft to rotate; the rotating shaft comprises a base, a shaft body fixedly arranged on the main shaft, a plurality of sliding grooves which are distributed on the base in an equidistant annular mode, a sliding block movably arranged in the sliding grooves, a first spring, a roller, a plurality of rotating plates and a plurality of spring plates, wherein the first spring is fixedly arranged on the sliding block and the base at two ends of the first spring respectively, one end of the roller is rotatably arranged on the sliding block, the rotating plates are rotatably arranged on the shaft body in one-to-one correspondence with the sliding grooves, one end of the rotating plates are rotatably arranged on the shaft body, and one end of the spring plates is fixedly arranged on the shaft body in one-to-one correspondence with the rotating plates.

The shaft body comprises a hollow pipe, a plurality of inclined holes which are distributed on the hollow pipe at equal intervals, a housing which is fixedly sleeved on the hollow pipe, a first fixed block and a second fixed block which are fixedly arranged in the hollow pipe, moving rods which are movably arranged on the first fixed block and the second fixed block, a plurality of guide rods which are distributed at equal intervals and are fixedly arranged on the main shaft at one end, a gravity block which is movably sleeved on the guide rod, a second spring which is fixedly arranged on the gravity block and the main shaft at the two ends respectively, pull ropes which are fixedly arranged on the first fixed block and the gravity block at the two ends respectively, and a plurality of air guide assemblies which are arranged on the hollow pipe at equal intervals.

The air guide assembly comprises a plurality of air guide plates which are distributed in an equidistant annular mode and are movably arranged on the hollow pipe, a third fixed block fixedly arranged on the air guide plates, a third spring with two ends fixedly arranged on the third fixed block and the hollow pipe respectively, a push block fixedly sleeved on the movable rod and an inclined plane arranged on the push block; the inclined planes on the plurality of air guide assemblies are gradually increased in inclination angle.

The auxiliary device comprises a plurality of fixed seats which are distributed annularly at equal intervals and are fixedly arranged on the partition plate, a plurality of turntables which are respectively arranged on the plurality of fixed seats in a rotating mode, a first connecting rod and a second connecting rod which are arranged on the turntables in a rotating mode, a third connecting rod which is arranged on the other end of the first connecting rod in a rotating mode and is arranged on the other end of the second connecting rod of the adjacent turntables in a rotating mode, a first plate body and a second plate body which are fixedly arranged on the third connecting rod, a driving shaft which is arranged on the ventilating duct in a rotating mode, a second motor which is fixedly arranged on the cabinet body and used for driving the driving shaft to rotate, a belt pulley which is fixedly sleeved on the driving shaft and a belt which is arranged on the belt pulley and the turntables in a winding mode.

The auxiliary device further comprises a plurality of moving plates which are distributed in an equidistant annular mode and can movably penetrate through the partition plate, an air outlet plate which is fixedly sleeved on the front disc, a plurality of second through holes which are arranged on the air outlet plate from inside to outside, a piston plate which is positioned between the air outlet plate and the partition plate and can be movably arranged in the ventilating duct, a plurality of third through holes which are distributed in an equidistant annular mode and are arranged on the piston plate, a plurality of fourth through holes which are distributed in an equidistant annular mode and are arranged on the partition plate, a first one-way valve which is arranged at the third through holes, a second one-way valve which is arranged at the fourth through holes, a fourth spring which is fixedly arranged at both ends of the piston plate and the partition plate, a plurality of fifth through holes which are distributed in an equidistant annular mode and are arranged on the ventilating duct, a first ring body which is fixedly arranged on the partition plate, a second ring body which is fixedly arranged on the first ring body and the ventilating duct, a sixth through hole which is arranged on the second ring body, a sliding seat which is movably arranged on the moving plate, a fifth spring which is fixedly arranged on the sliding seat and the moving plate are respectively arranged at both ends of the sliding seat and the moving plate; the second through holes are gradually enlarged from inside to outside; one end of the moving plate is fixed on the piston plate.

The auxiliary device further comprises a third ring body fixedly arranged on the second ring body, a fourth ring body movably arranged on the third ring body, a sixth spring, a baffle ring, a rod body, a seventh spring, a multi-section telescopic pipe and a plurality of seventh through holes, wherein the sixth spring is fixedly arranged at two ends of the sixth spring on the fourth ring body and the second ring body respectively, the baffle ring is fixedly arranged on the fourth ring body, the rod body is movably arranged on the slide seat, the seventh spring is fixedly arranged at two ends of the rod body and the slide seat respectively, one end of the seventh spring is fixedly arranged on the baffle plate, the other end of the seventh through hole is movably arranged on the slide seat, and the plurality of seventh through holes are distributed on the second ring body in an equidistant annular mode.

The invention has the following advantages: the structure of the original traditional centrifugal fan is abandoned by arranging the air supply device and the driving device, and the defects of complex belt transmission structure and large volume are avoided; the structure of the original traditional axial flow fan is abandoned, the defects of fixed air flow direction and lower pressure are avoided, the characteristics of simple structure, higher pressure, small volume, convenient manufacture, flexible air outlet angle and the like are realized, the requirements of the fire-fighting ventilation system of workers and civil engineering can be met, meanwhile, the material and manufacturing cost is reduced, and the market competitiveness of the product is increased; the rear disc is spherical (or conical), and the circumferential speed of the air flow is increased continuously in the flowing process of the air flow in the impeller along with the rotation of the impeller, so that the pressure lifting capacity of the air flow is improved, and the characteristics of high pressure lifting capacity and small turbulence loss of the impeller are realized; the airflow channel formed by the spherical (or conical) rear disc, the integrally conical (or circular arc) front disc and the blades welded at a certain space inclined installation angle is utilized, so that the airflow direction is in a certain angle along the axial direction to be diverged and flowed, the axial and radial multiple air outlet angle configuration of the fan is facilitated, and the flexible air outlet angle is realized; the main structure of the impeller is formed by utilizing the flat (or circular arc) blades and the front disk which is integrally conical (or circular arc), so that special structures such as three-dimensional space distortion, circular arc intersecting line connection and the like are abandoned, and the characteristics of simple process and convenient manufacture are realized; the rear disc which ensures the strength and rigidity of the blades is directly connected to the main shaft of the motor, so that the belt transmission structure of the traditional centrifugal fan is avoided, and the characteristics of simple structure and small volume are realized; the auxiliary device plays a good air supply role, so that the air at the air inlet is easier to be sucked into the ventilating duct, the resistance of the air supply device is reduced, and the energy consumption and the noise are reduced.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic side view of the present invention.

Fig. 3 is a partial cross-sectional view of line A-A in fig. 2.

Fig. 4 is a cross-sectional view taken along line B-B in fig. 3.

Fig. 5 is an enlarged view at a in fig. 4.

Fig. 6 is an enlarged view at B in fig. 4.

Fig. 7 is a partial cross-sectional view of the G-G line in fig. 4.

Fig. 8 is a structural cross-sectional view of the C-C line in fig. 4.

Fig. 9 is an enlarged view of D in fig. 8.

Fig. 10 is a partial cross-sectional view of the line E-E of fig. 4.

Fig. 11 is a structural cross-sectional view of the F-F line in fig. 4.

Fig. 12 is an enlarged view at C in fig. 11.

Fig. 13 is a structural cross-sectional view of the H-H line in fig. 4.

Fig. 14 is a partial cross-sectional view of the line D-D in fig. 3.

Fig. 15 is an enlarged view at E in fig. 14.

Detailed Description

In order to make the present invention better understood by those skilled in the art, the following description of the technical solutions of the present invention will be made in detail, but not all embodiments of the present invention are apparent to some embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

As shown in fig. 1-15, a high-efficiency cabinet type centrifugal fan comprises a cabinet body 1, a ventilation pipeline 2 fixedly arranged on the cabinet body, an air inlet 3 and an air outlet 4 arranged on the ventilation pipeline, a baffle plate 5 positioned at the air inlet and fixedly arranged on the ventilation pipeline, a swivel 6 rotatably arranged on the baffle plate, an air supply device 7 fixedly arranged on the swivel, an auxiliary device 8 arranged on the baffle plate and used for assisting the air supply device, and a driving device 9 arranged on the cabinet body and used for driving the air supply device to operate; the air supply device 7 comprises a front disc 71 fixedly arranged on a swivel, a plurality of blades 72 annularly distributed on the front disc at equal intervals, a rear disc 73 fixedly arranged on the blades at the same time, a shaft sleeve fixing plate 74 fixedly arranged on the rear disc, a steel pipe 75 fixedly arranged on the shaft sleeve fixing plate, and a shaft sleeve 76 with one end inserted into the steel pipe; the shaft sleeve and the shaft sleeve fixing plate are fixed together through a plurality of bolts 77 distributed in an equidistant annular mode; the rear disc is spherical or conical; the blades are of a flat plate type or an arc shape and are arranged between the rear disc and the front disc; the air outlet angle is adjustable.

The shaft sleeve is suitable for being directly installed on a main shaft, the shaft sleeve is connected with a shaft sleeve fixing plate of the rear disc through bolts, the front end of the shaft sleeve is matched with the spherical (or conical) rear disc through a steel pipe, and the axial concentricity and the overall rigidity of the blade are ensured. The shaft sleeve is directly arranged on the main shaft, and the transmission mode of the whole fan is a direct-connection structure, so that the fan can realize the requirements of simple structure and small volume.

The front disc is positioned at the top of the blade, is in a conical shape or an arc shape as a whole, and forms a complete airflow channel with the rear disc of the blade.

The rear disc is spherical (or conical) and is different from a flat rear disc of a traditional centrifugal fan, so that the flow direction of air flow is more inclined to the axial direction, and the air flow of the traditional centrifugal fan is vertical to the axial direction; the rear disk is spherical (or conical) and is different from an axial hub (or conical hub) of a traditional axial flow fan, so that the flow direction of the air flow is more inclined to form a certain angle with the axial direction, and the air flow of the traditional axial flow fan flows along the axial direction; the rear disc is spherical (or conical), and the circumferential speed of the air flow is increased continuously in the flowing process of the air flow in the blade along with the rotation of the fan blade, so that the pressure lifting capacity of the air flow is improved; the blade is a flat plate (or arc) blade, so that the blade is very easy to process; the blades are arranged between the rear disc and the front disc of the fan, and form a special airflow channel through a certain space inclined installation angle; the blade is a flat blade, but because the rear disc is spherical (or conical), the inlet and outlet mounting angles of the blade on the rear disc still form an angle difference, so that the pressure of the lifting airflow is realized; the blades are flat, but because the rear disc is spherical (or conical), the air flow has a certain angle when flowing in the fan, and the blades form different included angles with the air flow direction on each section from the rear disc to the front disc, so that the internal turbulence loss of the air flow is reduced, and the pressure rising capability of the impeller is improved; the front end of the shaft sleeve is matched with a spherical (or conical) rear disc through a steel pipe, so that the axial concentricity and the overall rigidity of the blade are ensured; the reinforced plate is connected with the reinforcing plate of the rear disc through bolts and is directly arranged on the main shaft; the turnup at the top of the front disc is matched with the current collector; the whole body is welded on the top end of the blade in a conical shape (or circular arc shape); the rear disc is spherical (or conical), and is different from the flat rear disc of the traditional centrifugal impeller and the axial hub (or conical hub) of the axial flow fan.

The driving device 9 comprises a main shaft 91 fixedly arranged on the shaft sleeve, a conical tube 92 fixedly sleeved on the main shaft, a first through hole 93 arranged on the main shaft, a rotating shaft 94 communicated with the main shaft and arranged on the main shaft, and a first motor 95 fixedly arranged on the cabinet body and used for driving the rotating shaft to rotate; the rotating shaft comprises a base 941, a shaft body 942 fixedly arranged on the main shaft, a plurality of sliding grooves 943 distributed on the base in an equidistant annular manner, a sliding block 944 movably arranged in the sliding grooves, a first spring 945 with two ends fixedly arranged on the sliding block and the base respectively, a roller 946 with one end rotatably arranged on the sliding block, a plurality of rotating plates 947 which are in one-to-one correspondence with the sliding grooves and one end rotatably arranged on the shaft body, and a plurality of spring plates 948 which are in one-to-one correspondence with the rotating plates and one end fixedly arranged on the shaft body; the first motor drives the rotating shaft to rotate, the spindle is rotated in the rotating process of the rotating shaft, the shaft sleeve is rotated in the rotating process of the spindle, finally the blades are rotated by taking the spindle as the shaft center, and the air entering the rotating ring can be dispersed through the conical tube, so that the blades can be rotated conveniently, and the resistance born by the blades in the rotating process can be greatly reduced; the motor drives the base on the rotating shaft to rotate first, so that the sliding blocks and the idler wheels rotate, the rotating plates are pushed to rotate in the process of revolving the idler wheels, the rotating plates revolve, the shaft body is driven to rotate, the main shaft is driven to rotate, the base is correspondingly driven to rotate, a good damping effect is achieved in the transmission process of the sliding blocks and the idler wheels through the spring plates and the first springs, vibration generated by the first motor is prevented from being transmitted to the shaft body, the shaft body and the main shaft are finally enabled to rotate more stably, noise generated by the blades is greatly reduced, and the whole air supply process is smoother.

The shaft 942 comprises a hollow tube 9421, a plurality of inclined holes 9422 distributed on the hollow tube at equal intervals in a ring shape, a housing 9423 fixedly sleeved on the hollow tube, a first fixed block 9424 and a second fixed block 9425 fixedly arranged in the hollow tube, a moving rod 9426 with two ends respectively penetrating through the first fixed block and the second fixed block in a movable manner, a plurality of guide rods 9427 distributed at equal intervals in a ring shape and with one end fixedly arranged on the main shaft, a gravity block 9428 movably sleeved on the guide rod, a second spring 9429 with two ends respectively fixedly arranged on the gravity block and the main shaft, pull ropes 9430 with two ends respectively fixedly arranged on the first fixed block and the gravity block, and a plurality of air guide assemblies arranged on the hollow tube at equal intervals; the hollow tube rotates to enable the main shaft to rotate, a plurality of guide rods on the main shaft rotate by taking the main shaft as an axis, the gravity block is located on the guide column to perform centrifugal motion, the pull rope is arranged, the pull rope can pull the moving rod to move towards the main shaft, the gravity block is reset through the second spring, the moving distance of the gravity block is controlled, and the stability of the main shaft rotation can be improved again through the arrangement.

The air guide assembly comprises a plurality of air guide plates 9431 which are distributed in an equidistant annular mode and are movably arranged on the hollow pipe, a third fixed block 9432 fixedly arranged on the air guide plates, a third spring 9433 with two ends fixedly arranged on the third fixed block and the hollow pipe respectively, a push block 9434 fixedly sleeved on the movable rod and an inclined plane 9435 arranged on the push block; the inclined plane inclination on the air guide assembly gradually increases and sets up, when the movable rod moves to the main shaft direction, through the inclined plane setting on ejector pad and the last, make the third fixed block of fixing on the aviation baffle centrifugal motion, make a plurality of aviation baffles centrifugal motion, make the third spring compressed, follow-up through the third spring to aviation baffle advance and the movable rod reset, hollow tube rotates the in-process and drives a plurality of aviation baffles revolution, make the hollow tube direction produce wind-force, the wind-force same that produces with the blade, make the air get into in the hollow tube from the first through-hole on the main shaft, the air in the hollow tube is discharged from a plurality of inclined holes, through the housing setting, can make the better air flow along the hollow tube direction of exhaust, play fine auxiliary effect to the wind-force that the blade produced, a plurality of inclined plane inclination on the air guide assembly gradually increases and sets up, thereby make the distance that the ejector pad moved become more smooth and more, the air velocity in the ventilation duct is more smooth and the auxiliary air supply is strengthened gradually.

The auxiliary device 8 comprises a plurality of fixed seats 81 which are distributed in an equidistant annular manner and fixedly arranged on the partition plate, a plurality of turntables 82 which are respectively arranged on the fixed seats in a rotating manner, a first connecting rod 83 and a second connecting rod 84 which are respectively arranged on the turntables in a rotating manner, a third connecting rod 85 which is respectively arranged on the other ends of the first connecting rods in a rotating manner and is respectively arranged on the other ends of the second connecting rods of the adjacent turntables in a rotating manner, a first plate 86 and a second plate 87 which are respectively arranged on the third connecting rods in a fixed manner, a driving shaft 88 which is respectively arranged on the ventilating duct in a rotating manner, a second motor 89 which is respectively arranged on the cabinet body in a fixed manner and is used for driving the driving shaft to rotate, a belt pulley 810 which is fixedly sleeved on the driving shaft, and a belt 811 which is wound on the belt pulley and the turntables; the driving shaft is driven to rotate by the second motor, so that the belt pulley rotates, the belt is enabled to run, one of the turntables rotates, the first connecting rod, the second connecting rod and the third connecting rod rotate, the first plate body and the second plate body on the third connecting rod rotate, and the first plate body and the second plate body can play a good auxiliary role on wind entering the ventilating duct in the rotating process.

The auxiliary device 8 further comprises a plurality of moving plates 812 distributed in an equidistant annular manner and capable of penetrating through the partition plate in a movable manner, an air outlet plate 813 fixedly sleeved on the front disc, a plurality of second through holes 814 arranged outside the air outlet plate from inside to outside, a piston plate 815 arranged between the air outlet plate and the partition plate and capable of being arranged in the air duct, a plurality of third through holes 816 distributed in an equidistant annular manner on the piston plate, a plurality of fourth through holes 817 distributed in an equidistant annular manner on the partition plate, a first one-way valve 818 arranged at the third through holes, a second one-way valve 819 arranged at the fourth through holes, fourth springs 820 with two ends fixedly arranged on the piston plate and the partition plate, a plurality of fifth through holes 821 distributed in an equidistant annular manner on the air duct, a first ring 822 fixedly arranged on the partition plate, a second ring 823 fixedly arranged on the first ring and the air duct, a sixth through hole 824 arranged on the second ring, a sliding seat 825 movably arranged on the moving plate, a fifth spring 826 with two ends fixedly arranged on the sliding seat and the moving plate respectively, and a baffle 827 fixedly arranged on the sliding seat; the second through holes are gradually enlarged from inside to outside; one end of the moving plate is fixed on the piston plate; the third connecting rod rotates the in-process and can intermittently contact the baffle, drives baffle and slide and removes, makes the movable plate remove, makes the piston board remove, and the follow-up through fourth spring resets the piston board, even the piston board reciprocating motion, when the piston board is opened to the baffle direction, first check valve opens, the second check valve closes, make the air between baffle and the piston board get into between the piston board and the air outlet plate through the third through-hole, the air between piston board and the air outlet plate is discharged through a plurality of second through-holes, auxiliary vane rotates the air supply, the air outlet plate rotates along with the blade together, the fifth spring setting can reset the slide, when the piston board kept away from the baffle, first check valve closes, the second check valve opens, make outside air get into between first ring body and the air pipe through the fifth through-hole, get into between baffle and the piston board through the fourth through-hole, make outside air continuous get into between the piston board and the air outlet plate when the reciprocating motion, by inside to be in a plurality of second through-holes on the air outlet plate can play fine auxiliary effect, make blade rotation in-process wind can be smoother, high efficiency.

The auxiliary device 8 further comprises a third ring 828 fixedly arranged on the second ring, a fourth ring 829 movably arranged on the third ring, a sixth spring 830 with two ends respectively fixedly arranged on the fourth ring and the second ring, a baffle ring 831 fixedly arranged on the fourth ring, a rod 832 movably arranged on the sliding seat, a seventh spring 833 with two ends respectively fixedly arranged on the rod and the sliding seat, a plurality of sections of telescopic pipes 834 with one end fixedly arranged on the partition board and the other end movably arranged on the sliding seat, and a plurality of seventh through holes 835 distributed on the second ring at equal intervals in a ring shape; when the sliding seat approaches to the direction of the fourth ring body, the rod body is contacted with the fourth ring body firstly, the seventh spring is used for setting, the rod body automatically stretches, the sliding seat is arranged through the baffle ring when moving to the direction of the second ring body, the fourth ring body moves to the direction of the second ring body, the fourth ring body is reset through the sixth spring, the multi-section telescopic pipe is stretched, when the first plate body and the second plate body rotate, outside air enters between the first ring body and the third ring body through a plurality of seventh through holes, air between the first ring body and the third ring body enters between the fourth ring body and the multi-section telescopic pipe, driven wind power is provided for the first plate body and the second plate body, and reverse wind power can be generated for air supply when the first plate body and the second plate body approach to the fourth ring body because the first plate body and the second plate body approach to the direction, and reverse wind power can be removed through the arrangement, and even the first plate body and the second plate body assist in supplying air to the outside in one direction all the time.

The first motor and the second motor are commercially available.

Claims

1. The utility model provides a high-efficient cabinet centrifugal fan which characterized in that: the novel air conditioner comprises a cabinet body (1), an air ventilation pipeline (2) fixedly arranged on the cabinet body, an air inlet (3) and an air outlet (4) arranged on the air ventilation pipeline, a partition plate (5) which is positioned at the air inlet and fixedly arranged on the air ventilation pipeline, a swivel (6) rotationally arranged on the partition plate, an air supply device (7) fixedly arranged on the swivel, an auxiliary device (8) arranged on the partition plate and used for assisting the air supply device, and a driving device (9) arranged on the cabinet body and used for driving the air supply device to operate; the air supply device (7) comprises a front disc (71) fixedly arranged on the swivel, a plurality of blades (72) which are distributed on the front disc in an equidistant annular mode, a rear disc (73) fixedly arranged on the blades at the same time, a shaft sleeve fixing plate (74) fixedly arranged on the rear disc, a steel pipe (75) fixedly arranged on the shaft sleeve fixing plate, and a shaft sleeve (76) with one end inserted into the steel pipe; the shaft sleeve and the shaft sleeve fixing plate are fixed together through a plurality of bolts (77) which are distributed in an equidistant annular mode; the rear disc is spherical or conical; the blades are of a flat plate type or an arc shape and are arranged between the rear disc and the front disc; the air outlet angle is adjustable;

the auxiliary device (8) comprises a plurality of fixed seats (81) which are distributed in an equidistant annular mode and are fixedly arranged on the partition plate, a plurality of turntables (82) which are respectively arranged on the fixed seats in a rotating mode, a first connecting rod (83) and a second connecting rod (84) which are arranged on the turntables in a rotating mode, a third connecting rod (85) which is arranged on the other end of the first connecting rod in a rotating mode and is arranged on the other end of the second connecting rod of the adjacent turntables in a rotating mode, a first plate body (86) and a second plate body (87) which are fixedly arranged on the third connecting rod, a driving shaft (88) which is arranged on the ventilating duct in a rotating mode, a second motor (89) which is fixedly arranged on the cabinet body and is used for driving the driving shaft to rotate, a belt pulley (810) which is fixedly sleeved on the driving shaft, and a belt (811) which is wound on the belt pulley and the turntables; the driving shaft is driven to rotate by the second motor, so that the belt pulley rotates, the belt rotates, one of the turntables rotates, the first connecting rod, the second connecting rod and the third connecting rod rotate, the first plate body and the second plate body on the third connecting rod rotate, and the first plate body and the second plate body can play a good auxiliary role on wind entering the ventilation pipeline in the rotating process;

the auxiliary device (8) further comprises a plurality of moving plates (812) which are distributed in an equidistant annular manner and can movably penetrate through the partition plate, an air outlet plate (813) which is fixedly sleeved on the front disc, a plurality of second through holes (814) which are formed in the air outlet plate from inside to outside, a piston plate (815) which is positioned between the air outlet plate and the partition plate and can be movably arranged in the air duct, a plurality of third through holes (816) which are distributed in an equidistant annular manner on the piston plate, a plurality of fourth through holes (817) which are distributed in an equidistant annular manner on the partition plate, a first one-way valve (818) which is arranged at the third through holes, a second one-way valve (819) which is arranged at the fourth through holes, a fourth spring (820) which is fixedly arranged at both ends of the piston plate and the partition plate, a plurality of fifth through holes (821) which are distributed in an equidistant annular manner on the air duct, a first ring body (822) which is fixedly arranged on the partition plate, a second ring body (826) which is fixedly arranged on the first ring body and the air duct, a sixth through hole (824) which is arranged on the second ring body, a sliding seat (825) which is movably arranged on the moving plate, and a fifth spring (827) which is fixedly arranged on the sliding seat and the moving plate which is fixedly arranged on the two ends of the movable seat and the partition plate respectively; the second through holes are gradually enlarged from inside to outside; one end of the moving plate is fixed on the piston plate; the third connecting rod rotates the in-process and can intermittently contact the baffle, drives baffle and slide and removes, makes the movable plate remove, makes the piston board remove, and the follow-up through fourth spring resets the piston board, even the piston board reciprocating motion, when the piston board is opened to the baffle direction, first check valve opens, the second check valve closes, make the air between baffle and the piston board get into between the piston board and the air outlet plate through the third through-hole, the air between piston board and the air outlet plate is discharged through a plurality of second through-holes, auxiliary vane rotates the air supply, the air outlet plate rotates along with the blade together, the fifth spring setting can reset the slide, when the piston board kept away from the baffle, first check valve closes, the second check valve opens, make outside air get into between first ring body and the air pipe through the fifth through-hole, get into between baffle and the piston board through the fourth through-hole, make outside air continuous get into between the piston board and the air outlet plate when the reciprocating motion, by interior to be in a plurality of second through-holes on the air outlet plate can play fine auxiliary effect, make blade rotation in-process wind can be smoother and more efficient.

2. The high efficiency cabinet type centrifugal fan as set forth in claim 1, wherein: the front disc is positioned at the top of the blade, is in a conical shape or an arc shape as a whole, and forms a complete airflow channel with the rear disc of the blade.

3. The high efficiency cabinet type centrifugal fan as set forth in claim 1, wherein: the driving device (9) comprises a main shaft (91) fixedly arranged on the shaft sleeve, a conical tube (92) fixedly sleeved on the main shaft, a first through hole (93) arranged on the main shaft, a rotating shaft (94) communicated with the main shaft and arranged on the main shaft, and a first motor (95) fixedly arranged on the cabinet body and used for driving the rotating shaft to rotate; the rotating shaft comprises a base (941), a shaft body (942) fixedly arranged on the main shaft, a plurality of sliding grooves (943) distributed on the base in an equidistant annular mode, a sliding block (944) movably arranged in the sliding grooves, first springs (945) respectively fixedly arranged on the sliding block and the base at two ends, rollers (946) with one ends rotatably arranged on the sliding block, a plurality of rotating plates (947) in one-to-one correspondence with the sliding grooves and one ends rotatably arranged on the shaft body, and a plurality of spring plates (948) in one-to-one correspondence with the rotating plates and one ends fixedly arranged on the shaft body.

4. A high efficiency cabinet centrifugal fan according to claim 3, wherein: the shaft body (942) comprises a hollow pipe (9421), a plurality of inclined holes (9422) which are distributed on the hollow pipe at equal intervals in an annular mode, a housing (9423) which is fixedly sleeved on the hollow pipe, a first fixing block (9424) and a second fixing block (9425) which are fixedly arranged in the hollow pipe, moving rods (9426) which are respectively penetrated through the first fixing block and the second fixing block at two ends and are movably arranged on the first fixing block and the second fixing block, a plurality of guide rods (9427) which are distributed at equal intervals in an annular mode and are fixedly arranged on a main shaft at one end, a gravity block (9428) which is movably sleeved on the guide rods, a second spring (9429) which is respectively fixedly arranged on the gravity block and the main shaft at two ends, and a pull rope (9430) which is respectively fixedly arranged on the first fixing block and the gravity block at two ends, and a plurality of air guide components which are arranged on the hollow pipe at equal intervals.

5. The efficient cabinet type centrifugal fan as claimed in claim 4, wherein: the air guide assembly comprises a plurality of air guide plates (9431) which are distributed in an equidistant annular mode and are movably arranged on the hollow pipe, a third fixed block (9432) fixedly arranged on the air guide plates, a third spring (9433) with two ends fixedly arranged on the third fixed block and the hollow pipe respectively, a push block (9434) fixedly sleeved on the movable rod and an inclined plane (9435) arranged on the push block; the inclined planes on the plurality of air guide assemblies are gradually increased in inclination angle.

6. The high efficiency cabinet type centrifugal fan as set forth in claim 1, wherein: the auxiliary device (8) further comprises a third ring body (828) fixedly arranged on the second ring body, a fourth ring body (829) movably arranged on the third ring body, a sixth spring (830) with two ends fixedly arranged on the fourth ring body and the second ring body respectively, a baffle ring (831) fixedly arranged on the fourth ring body, a rod body (832) movably arranged on the sliding seat, a seventh spring (833) with two ends fixedly arranged on the rod body and the sliding seat respectively, a plurality of sections of telescopic pipes (834) with one end fixedly arranged on the partition plate and the other end movably arranged on the sliding seat, and a plurality of seventh through holes (835) distributed on the second ring body at equal intervals.