CN112253552B - Banana type jet fan structure - Google Patents

Abstract

The invention discloses a banana-type jet fan structure which comprises a mounting box, a first muffler, a second muffler, an air inlet pipe, an air outlet pipe, a fan assembly, a first sealing part and a second sealing part, wherein the first muffler and the second muffler are respectively arranged at two ends of the mounting box; the novel arc-shaped design is adopted, so that friction loss of the fan due to air jet flow and the tunnel wall surface is reduced, and the energy efficiency of the fan is improved; the method has the remarkable characteristics of electricity saving, energy saving, small occupied area, investment saving, low running cost, reliable running, low noise, environmental protection, no pollution and the like, and has wider market prospect.

Description

Banana type jet fan structure

Technical Field

The invention belongs to the technical field of fans and ventilation engineering equipment, and particularly relates to a banana type jet fan structure.

Background

Along with the rapid development of expressways in China and the achievement of huge achievement in expressway construction, ventilation and smoke discharge in a tunnel are realized mainly by virtue of jet fans, the shape of the tunnel jet fans in China is designed horizontally at present, namely the sections of air inlets and air outlets of the fans are vertical to the axes of the fans, and the axes of silencers are coincident with the horizontal axes of the fans, so that the air inlet and air outlet of the fans are limited by the space of an installation environment in actual use, the air outlet flow velocity of the fans at the top of the tunnel is high, the friction loss is caused to be large, the coanda effect is obvious, the flow velocity at the bottom of the tunnel is low, the whole flow field is very uneven, impulse noise is increased, the average thrust is reduced, and the ideal effect cannot be achieved.

Disclosure of Invention

The invention provides a banana type jet fan structure for overcoming the defects in the prior art.

In order to achieve the above purpose, the present invention adopts the following technical scheme: the banana-shaped jet fan structure comprises a mounting box, a first muffler, a second muffler, an air inlet pipe, an air outlet pipe, a fan assembly, a first sealing part and a second sealing part, wherein the first muffler and the second muffler are respectively arranged at two ends of the mounting box; the central axis of the banana type jet fan mounting box is intersected with the central axis of the air inlet pipe and the central axis of the air outlet pipe respectively at a certain angle, so that the air inlet pipe, the mounting box and the air outlet pipe are connected in a banana shape, the air jet of the air outlet of the fan deviates from the friction area at the top of the tunnel, the friction loss of the wall surface at the top is reduced, the whole flow field is uniform, the average thrust of the fan is improved, the mounting quantity of the fan is reduced, and the purposes of saving energy and improving efficiency are achieved; meanwhile, as the jet flow direction of the fan is inclined downwards, the distance between the fan and the wall surface at the top of the tunnel can be reduced, and the installation space is saved; under the condition that the fan is mounted by the wall, the mounting angles of the air inlet pipe and the air outlet pipe are adjusted, so that the influence of the coanda effect on the air outlet efficiency is eliminated or reduced, and the technical problem of the influence on the air inlet efficiency is also eliminated or reduced; in the tunnel, the banana-shaped jet fan greatly improves the flow field and wind speed distribution through the unique design, reduces the loss in a main friction area by concentrating the thrust in the middle of the tunnel, and simultaneously ensures that the wind quantity distribution in the tunnel is more uniform; the support component provides support force for the air inlet pipe and the air outlet pipe, so that the air inlet pipe and the air outlet pipe have reliable fixing force after rotating for a certain angle, the air inlet pipe and the air outlet pipe are fixed at the current position, the stability of the air inlet pipe and the air outlet pipe is improved, and the overall strength of a fan structure is improved; the first sealing part and the second sealing part provide sealing effect for the overturning state of the air inlet pipe and the air outlet pipe, so that air flow is prevented from leaking from the clearance between the air inlet pipe and the first silencer or between the air outlet pipe and the second silencer after the air inlet pipe and the air outlet pipe are overturned, and the running effect of the fan is improved.

Be equipped with first connecting plate on the first silencer, first connecting plate one side is equipped with first connecting block, wear to be equipped with first transmission shaft on the first connecting block, first transmission shaft one end is equipped with and is used for the drive first transmission shaft pivoted first driving motor, be equipped with the line roller on the first silencer, be equipped with first connecting rope on the line roller, first connecting rope one end link firmly in the intake pipe, be equipped with on the first driving roller with line roller matched with first drive wheel.

The support assembly comprises a second connecting block arranged on the first muffler, a guide frame arranged above the second connecting block and a pressing block arranged in the guide frame, a first groove matched with the pressing block is formed in the second connecting block, and the first connecting rope penetrates through the first groove; the first sliding block is arranged on the inner wall of the first groove, a first sliding groove matched with the first sliding block is arranged on the pressing block, and the first driving motor can drive the pressing block to move up and down.

The silencer is characterized in that a mounting frame is arranged on the first silencer, a second driving wheel and a third driving wheel are arranged on the mounting frame, a fourth driving wheel matched with the second driving wheel and the third driving wheel is arranged on the first driving shaft, a second connecting plate is arranged on the pressing block, a third connecting plate is arranged on the guide frame, a connecting cavity is arranged on the first silencer, a first through hole communicated with the connecting cavity is arranged on the second connecting plate, a second connecting rope and a third connecting rope are respectively arranged at the top and the bottom of the second connecting plate, a second through hole is arranged on the third connecting plate, the second connecting rope penetrates through the second through hole and is fixedly connected to the second driving wheel, and the third connecting rope penetrates through the connecting cavity and is fixedly connected to the third driving wheel.

The first driving motor comprises a first driving motor and a first driving motor, wherein a first sleeve is arranged on an output shaft of the first driving motor, the first driving shaft penetrates through the first sleeve, a first limiting plate is arranged on the first driving shaft, a reset spring is arranged on the first limiting plate, and a first electromagnet is arranged at one end of the first sleeve; the air inlet pipe bottom is equipped with first connecting axle, first connecting axle both ends are equipped with the second connecting axle respectively, be equipped with the third connecting block on the first silencer, be equipped with first movable chamber on the third connecting block, the second connecting axle wears to locate first movable intracavity, first movable intracavity is equipped with the fixed block, works as the briquetting is pressed in the first recess, the fixed block supports on the second connecting axle.

The inner wall of the first movable cavity is provided with a first movable groove, the fixed block penetrates through the first movable groove, the fixed block is provided with a fixed spring, one side of the first movable groove is provided with a first air conveying cavity communicated with the first movable groove, the first muffler is provided with a second air conveying cavity communicated with the first air conveying cavity, and the top of the second air conveying cavity is provided with a first push plate; a second movable cavity is arranged below the second connecting block, a second push plate is arranged in the second movable cavity, a first supporting spring is arranged at the bottom of the second push plate, a second movable groove communicated with the second gas transmission cavity is arranged on the side wall of the second movable cavity, a first connecting rod is arranged on the second push plate, and the first push plate is arranged on the first connecting rod; the briquetting bottom is equipped with first push rod, first push rod wears to locate in the second activity intracavity.

The second connecting shaft is provided with a first protruding block, the side wall of the first movable cavity is provided with a plurality of through grooves, and a supporting plate is arranged in each through groove in a penetrating manner; a first mounting block is arranged in the first muffler, a connecting pipe is arranged on the first mounting block, a second supporting spring is arranged in the connecting pipe, a second connecting rod is arranged at the top end of the second supporting spring, a fourth connecting plate is arranged on the second connecting rod, a filter screen is arranged on the first mounting block, the upper bottom of the filter screen is fixedly connected to the first mounting block, the top end of the filter screen is fixedly connected to the fourth connecting plate, and a waste box is arranged on the first mounting block; when the fan assembly works, the fourth connecting plate intermittently moves upwards.

The first mounting block is provided with a second mounting block, the second mounting block is provided with a third movable groove, a third push plate is rotatably connected in the third movable groove, the second mounting block is provided with a fourth movable groove, a second transmission shaft is arranged in the fourth movable groove in a penetrating mode, one end of the second transmission shaft is provided with a fourth connecting block, the fourth connecting block is provided with a plurality of first fan blades, one side of the fourth movable groove is provided with a fifth movable groove, the bottom of the fifth movable groove is provided with a sixth movable groove, the second transmission shaft is provided with a second protruding block, the second protruding block is arranged in the fifth movable groove, a fourth push plate is arranged in the sixth movable groove, a connecting frame is arranged on the fourth push plate, and the third push plate is arranged in the connecting frame in a penetrating mode; the fourth pushing plate is provided with a second sliding block, and the inner wall of the sixth movable groove is provided with a second sliding groove matched with the second sliding block.

The top of the waste box is provided with a fifth connecting plate, a third sliding groove is formed in the fifth connecting plate, a fifth connecting block is arranged in the waste box, a baffle is rotatably connected to the fifth connecting block, a third sliding block matched with the third sliding groove is arranged on the fifth connecting block, and a first connecting spring is arranged at the top of the third sliding block; the bottom of the fourth movable groove is provided with a third movable cavity, the waste box is provided with a sixth connecting block, the sixth connecting block is provided with a fourth movable cavity communicated with the third movable cavity, a third transmission shaft is arranged in the fourth movable cavity, the third transmission shaft penetrates through the third movable cavity, and the second transmission shaft is in transmission fit with the third transmission shaft through a synchronous belt; a second sleeve is arranged in the third movable cavity, and the third transmission shaft penetrates through the second sleeve; a cavity is formed in the third transmission shaft, an eighth movable groove communicated with the cavity is formed in one end of the third transmission shaft, a ninth movable groove is formed in the inner wall of the third movable cavity, a second connecting spring is arranged in the ninth movable groove, a push block is arranged on the second connecting spring, the push block penetrates through the eighth movable groove, and a second electromagnet is arranged in the ninth movable groove; and the second sleeve can drive the fifth connecting block to move downwards when rotating.

A sixth movable cavity communicated with the fourth movable cavity is formed in the bottom of the third sliding groove, a fourth connecting rope is arranged at the bottom of the third sliding block, and one end of the fourth connecting rope is fixedly connected to the second sleeve; a tenth movable groove is formed in the side wall of the waste box, a mounting strip is arranged in the tenth movable groove, a plurality of bristles are arranged on the mounting strip, and a third connecting spring is arranged on the mounting strip; a fifth movable cavity communicated with the fourth movable cavity is formed in the bottom of the tenth movable cavity, a third connecting shaft is arranged at one end of the third transmission shaft, the third connecting shaft is arranged in the fifth movable cavity, a second push rod is arranged in the fifth movable cavity, a third push rod is arranged at the bottom of the second push rod, and a third protruding block matched with the third push rod is arranged at the bottom of the third connecting shaft; a seventh connecting block is arranged on the inner wall of the fifth movable cavity, a third connecting spring is arranged on the seventh connecting block, and the bottom end of the third connecting spring is fixedly connected to the third push rod.

The invention has the following advantages: the novel arc-shaped design is adopted, so that friction loss of the fan due to air jet and the tunnel wall surface is further reduced, and the energy efficiency of the fan is improved; the method has the remarkable characteristics of electricity saving, energy saving, small occupied area, investment saving, low running cost, reliable running, low noise, environmental protection, no pollution and the like, and has wider market prospect.

Drawings

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

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

Fig. 3 is a cross-sectional view taken along A-A in fig. 2.

Fig. 4 is an enlarged view at a in fig. 3.

Fig. 5 is an enlarged view at B in fig. 3.

Fig. 6 is a cross-sectional view taken along B-B in fig. 2.

Fig. 7 is a cross-sectional view taken along line C-C of fig. 2.

Fig. 8 is an enlarged view at C in fig. 7.

Fig. 9 is a cross-sectional view taken along D-D in fig. 2.

Fig. 10 is an enlarged view of D in fig. 9.

Fig. 11 is a cross-sectional view taken along line E-E of fig. 2.

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

Fig. 13 is a front view of the present invention.

Fig. 14 is a cross-sectional view taken along F-F in fig. 13.

Fig. 15 is a cross-sectional view taken along G-G in fig. 13.

Fig. 16 is an enlarged view of F in fig. 13.

Fig. 17 is a cross-sectional view taken along H-H in fig. 13.

Fig. 18 is an enlarged view at G in fig. 17.

Fig. 19 is a cross-sectional view taken along line I-I in fig. 13.

Fig. 20 is an enlarged view at H in fig. 19.

Fig. 21 is a cross-sectional view taken along J-J in fig. 13.

Fig. 22 is an enlarged view of fig. 21 at I.

Fig. 23 is an enlarged view at J in fig. 21.

Fig. 24 is a cross-sectional view taken along line K-K in fig. 13.

Fig. 25 is an enlarged view at K in fig. 24.

Fig. 26 is a cross-sectional view taken along L-L in fig. 13.

Fig. 27 is an enlarged view at L in fig. 26.

Detailed Description

As shown in fig. 1-27, a banana-type jet fan structure comprises a mounting box 1, a first muffler 2, a second muffler 3, an air inlet pipe 4 and an air outlet pipe 5, wherein the first muffler 2 and the second muffler 3 are respectively arranged at two ends of the mounting box 1, the air inlet pipe 4 is arranged at one end of the first muffler 2, the air outlet pipe 5 is arranged in the mounting box 1, the bottom of the air inlet pipe 4 is rotatably connected to the first muffler 2, the bottom of the air outlet pipe 5 is rotatably connected to the second muffler 3, a first sealing part 42 is arranged on the air inlet pipe 4, a second sealing part is arranged on the air outlet pipe 5, and support components for pulling the air inlet pipe 4 and the air outlet pipe 5 are respectively arranged on the first muffler 2 and the second muffler 3; the central axis of the banana type jet fan mounting box is intersected with the central axis of the air inlet pipe and the central axis of the air outlet pipe respectively at a certain angle, so that the air inlet pipe, the mounting box and the air outlet pipe are connected in a banana shape, the air jet of the air outlet of the fan deviates from the friction area at the top of the tunnel, the friction loss of the wall surface at the top is reduced, the whole flow field is uniform, the average thrust of the fan is improved, the mounting quantity of the fan is reduced, and the purposes of saving energy and improving efficiency are achieved; meanwhile, as the jet flow direction of the fan is inclined downwards, the distance between the fan and the wall surface at the top of the tunnel can be reduced, and the installation space is saved; under the condition that the fan is mounted by the wall, the mounting angles of the air inlet pipe and the air outlet pipe are adjusted, so that the influence of the coanda effect on the air outlet efficiency is eliminated or reduced, and the technical problem of the influence on the air inlet efficiency is also eliminated or reduced; in the tunnel, the banana-shaped jet fan greatly improves the flow field and wind speed distribution through the unique design, reduces the loss in a main friction area by concentrating the thrust in the middle of the tunnel, and simultaneously ensures that the wind quantity distribution in the tunnel is more uniform; the support component provides support force for the air inlet pipe and the air outlet pipe, so that the air inlet pipe and the air outlet pipe have reliable fixing force after rotating for a certain angle, the air inlet pipe and the air outlet pipe are fixed at the current position, the stability of the air inlet pipe and the air outlet pipe is improved, and the overall strength of a fan structure is improved; the first sealing part and the second sealing part provide sealing effect for the overturning state of the air inlet pipe and the air outlet pipe, so that air flow is prevented from leaking from the clearance between the air inlet pipe and the first silencer or between the air outlet pipe and the second silencer after the air inlet pipe and the air outlet pipe are overturned, and the running effect of the fan is improved.

The first muffler 2 is provided with a first connecting plate 21, and the first muffler is fixedly connected to the top of the tunnel through the first connecting plate; a first connecting block 2502 is arranged on one side of the first connecting plate 21, a first transmission shaft 250 is arranged on the first connecting block 2502 in a penetrating manner, a first driving motor 22 for driving the first transmission shaft 250 to rotate is arranged at one end of the first transmission shaft 250, a wire roller 270 is arranged on the first muffler 2, a first connecting rope is wound on the wire roller 270, one end of the first connecting rope is fixedly connected to the air inlet pipe 4, and a first driving wheel 2503 matched with the wire roller 270 is arranged on the first transmission shaft 250; when the fan is installed, the installation box, the first muffler and the second muffler are fixed at the top of the tunnel, taking an air inlet pipe adjustment as an example, after the actual arc degree of the top of the tunnel is measured, the first driving motor drives the first transmission shaft to rotate, the wire roller rotates along with the first transmission shaft, the first connecting rope rotates out of the wire roller, the air inlet pipe turns over under the action of self gravity, the air inlet pipe turns over around a connecting point at the bottom, a corresponding angle is formed between the air inlet pipe and the first muffler, the air inlet pipe is more easy to form fit with the top surface of the tunnel, and the air inlet efficiency of the fan is improved; under the mutually supporting of online roller and first connecting rope, promote the application scope to intake pipe angle adjustment, make the intake pipe have wider adjustment space, utilize first connecting rope to provide holding power for the intake pipe simultaneously after intake pipe angle adjustment, fix the intake pipe on current position, increase the holistic stability of fan structure.

The supporting component comprises a second connecting block 24 arranged on the first muffler 2, a guide frame 23 arranged above the second connecting block 24 and a pressing block 240 arranged in the guide frame 23, a first groove matched with the pressing block 240 is formed in the second connecting block 24, and the first connecting rope penetrates through the first groove; a first sliding block is arranged on the inner wall of the first groove, a first sliding groove matched with the first sliding block is arranged on the pressing block 240, and the first driving motor 22 can drive the pressing block 240 to move up and down; when the angle of the air inlet pipe is adjusted, the first driving motor drives the pressing block to move upwards, the pressing block rises from the first groove, the linear roller rotates to drive the first connecting rope to move, the air inlet pipe can rotate on one side of the first muffler under the action of gravity of the first connecting rope and the air inlet pipe, and the angle of the air inlet pipe is adjusted; after the angle adjustment of the air inlet pipe is finished, the first driving motor drives the pressing block to move downwards, the pressing block enters the first groove, the pressing block presses the first connecting rope to fix the first connecting rope in the first groove, the pressing block is used for providing supporting force for the air inlet pipe so as to fix the air inlet pipe at the current position, the position adjustment of the air inlet pipe is finished, and the fan structure is better attached to the top surface of the tunnel; the guide block and the sliding groove sliding block are mutually matched to limit the moving track of the pressing block, so that the pressing block is prevented from abutting against the side wall of the first groove, the pressing block is completely pressed in the first groove, and the fixing effect of the pressing block on the first connecting rope is improved; the guide frame is made of magnet, the pressing block is made of iron alloy material, when the first driving motor pulls the pressing block to move to the top of the guide frame, a fixing force is generated for the pressing block under the action of magnetic force of the guide frame, the pressing block is temporarily fixed in the guide frame, so that the wire roller is driven to rotate by the first transmission shaft, the pressing block is prevented from being pressed on the first connecting rope when the wire roller rotates, and the first connecting rope can freely move in the first groove.

The first muffler 2 is provided with a mounting frame 260, the mounting frame 260 is provided with a second driving wheel 2601 and a third driving wheel 2602, the first driving shaft 250 is provided with a fourth driving wheel 2501 matched with the second driving wheel 2601 and the third driving wheel 2602, the pressing block 240 is provided with a second connecting plate 2401, the guide frame 23 is provided with a third connecting plate 231, the first muffler 2 is provided with a connecting cavity, the second connecting block 24 is provided with a first through hole communicated with the connecting cavity, the top and the bottom of the second connecting plate 2401 are respectively provided with a second connecting rope 2402 and a third connecting rope 2403, the third connecting plate 231 is provided with a second through hole, the second connecting rope 2402 penetrates through the second through hole and is fixedly connected to the second driving wheel 2601, and the third connecting rope 2403 penetrates the connecting cavity and is fixedly connected to the third driving wheel 2602; when the angle of the air inlet pipe is adjusted, the fourth driving wheel is matched with the second driving wheel and the third driving wheel, the fourth driving wheel drives the second driving wheel and the third driving wheel to rotate, the second connecting rope is wound on the second driving wheel, the third connecting rope is wound out of the third driving wheel, the second connecting rope generates upward force on the pressing block under the arrangement of the second through hole, the pressing block is pulled out of the first groove, and the pressing block rises from the first groove to move towards the top of the guide frame; then the first transmission shaft moves, the first transmission wheel is matched with the wire roller, the pressing block is fixed in the guide frame and is in a continuously lifted state, the first transmission shaft drives the first transmission wheel to rotate, the first transmission wheel drives the wire roller to rotate, and the first connecting rope rotates along with the wire roller to adjust the angle of the air inlet pipe; when the angle of the air inlet pipe is adjusted, the first connecting shaft moves back, the fourth driving wheel is matched with the second driving wheel and the third driving wheel again, the fourth driving wheel drives the second driving wheel and the third driving wheel to rotate, the third connecting rope is wound on the third driving wheel, the second connecting rope rotates out of the second driving wheel, the third connecting rope generates a pulling force for downward movement on the pressing block under the action of the first through hole, the pressing block moves downward and is pressed in the first groove, the first connecting rope is fixed in the first groove under the action of the pressing block, supporting force is provided for the air inlet pipe, and the stability of the fan structure in use is ensured; under the effect of the third connecting rope, the pressing block is pressed in the first groove to generate further pressure on the bottom of the first groove, so that the pressure of the pressing block on the first connecting rope is improved, and the fixing effect of the pressing block on the first connecting rope is guaranteed.

The output shaft of the first driving motor 22 is provided with a first sleeve 221, the first transmission shaft 250 is arranged in the first sleeve 221 in a penetrating manner, the first transmission shaft 250 is provided with a first limiting plate 2504, the first limiting plate 2504 is provided with a return spring, and one end of the first sleeve 221 is provided with a first electromagnet; when the fourth driving wheel is matched with the second driving wheel and the third driving wheel, the first electromagnet is in a power-off state; when the first driving wheel is matched with the wire roller, the first electromagnet is in an electrified state, the first electromagnet is matched with the reset spring to control the position of the first transmission shaft, so that the first transmission shaft is matched with the wire roller or the second driving wheel and the third driving wheel according to the requirement, the angle of the air inlet pipe is adjusted by using the first driving motor, and the fan structure is better matched with the top of the tunnel; the bottom of the air inlet pipe 4 is provided with a first connecting shaft 41, two ends of the first connecting shaft 41 are respectively provided with a second connecting shaft 411, the first muffler 2 is provided with a third connecting block 220, the third connecting block 220 is provided with a first movable cavity, the second connecting shaft 411 is arranged in the first movable cavity in a penetrating manner, a fixed block 2201 is arranged in the first movable cavity, and when the pressing block 240 is pressed in the first groove, the fixed block 2201 is propped against the second connecting shaft 411; the rotatable connection of the air inlet pipe is realized under the cooperation of the second connecting shaft and the first movable cavity, the connecting part is a rubber corrugated pipe, and the connecting part stretches and contracts along with the rotation of the air inlet pipe when the air inlet pipe rotates, so that the connecting part of the air inlet pipe and the first muffler is sealed; after the angle of the air inlet pipe is adjusted, the fixed block moves towards the direction of the second connecting shaft, the fixed block is propped against the second connecting shaft and plays a role in fixing the second connecting shaft under the action of the fixed block, a fixing effect is provided for the air inlet pipe from the bottom, the fixed block is matched with the first connecting rope, supporting force is provided for the air inlet pipe from the top and the bottom of the air inlet pipe respectively, and the supporting effect on the air inlet pipe is ensured; the movement of the pressing block is utilized to directly control the fixed block, so that the top and the bottom of the air inlet pipe are simultaneously fixedly supported, the gravity of the air inlet pipe is distributed on a plurality of parts, the stress of each part is reduced, the parts are protected, and the service life of the fan structure is prolonged.

A first movable groove 2203 is formed in the inner wall of the first movable cavity, the fixed block 2201 is arranged in the first movable groove 2203 in a penetrating manner, a fixed spring 2202 is arranged on the fixed block 2201, a first air conveying cavity 230 communicated with the first movable groove 2203 is formed in one side of the first movable groove 2203, a second air conveying cavity 290 communicated with the first air conveying cavity 230 is formed in the first muffler 2, and a first push plate 2803 is arranged at the top of the second air conveying cavity 290; a second movable cavity is arranged below the second connecting block 24, a second push plate 280 is arranged in the second movable cavity, a first supporting spring 2801 is arranged at the bottom of the second push plate 280, a second movable groove communicated with the second gas transmission cavity is arranged on the side wall of the second movable cavity, a first connecting rod 2802 is arranged on the second push plate 280, and a first push plate 2803 is arranged on the first connecting rod 2802; the bottom of the pressing block 240 is provided with a first push rod, and the first push rod is arranged in the second movable cavity in a penetrating way; after the angle of the air inlet pipe is adjusted, the electromagnet is powered off, the first transmission shaft moves to enable the fourth transmission wheel to form connection fit with the second transmission wheel and the third transmission wheel, the first transmission shaft drives the second transmission wheel and the third transmission wheel to rotate, the pressing block moves downwards under the action of the first driving motor, and the pressing block enters the first groove and is pressed on the first connecting rope; when the pressing block moves downwards, the first push rod is driven to move downwards, the second push plate is driven to move downwards by the first push rod, the first push plate moves downwards to extrude the space in the second air conveying cavity, air in the second air conveying cavity enters the first air conveying cavity, air in the first air conveying cavity enters the first movable groove, the fixing block is driven to move towards the direction of the second connecting shaft under the action of air pressure, the fixing block is abutted to the side wall of the second connecting shaft, the second connecting shaft is fixed, the fixing of the whole air inlet pipe is completed, the central axis of the air inlet pipe and the central axis of the fan assembly are positioned in a required angle, the friction loss of the top wall surface of the fan structure is reduced, the whole flow field is uniform, and the average thrust of the fan is improved.

The second connecting shaft 411 is provided with a first bump 412, a plurality of through slots are formed in the side wall of the first movable cavity, and a supporting plate 2204 is arranged in each through slot in a penetrating manner; the first muffler 2 is internally provided with a first mounting block 27, the first mounting block 27 is provided with a connecting pipe 278, the connecting pipe 278 is internally provided with a second supporting spring 2781, the top end of the second supporting spring 2781 is provided with a second connecting rod 262, the second connecting rod 262 is provided with a fourth connecting plate 26, the first mounting block 27 is provided with a filter screen 25 which is woven by nylon ropes, the bottom end of the filter screen 25 is fixedly connected with the first mounting block 27, the top end of the filter screen 25 is fixedly connected with the fourth connecting plate 26, and the first mounting block 27 is provided with a waste box; when the fan assembly is in operation, the fourth connecting plate 26 intermittently moves upwards; after the radian data of the top of the tunnel is measured, the supporting plate is inserted into a required through groove according to the measured data, the supporting plate enters into a first movable cavity through the through groove, the rotation angle of the second connecting shaft is limited by utilizing the mutual matching of the supporting plate and the first protruding block, the maximum rotation angle of the second connecting shaft is limited, when the pressing block rises from the first groove, the air inlet pipe pulls the first connecting rope to move under the action of self gravity, the first protruding block rotates to one side of the supporting plate along with the second connecting shaft, the first protruding block abuts against the side wall of the supporting plate, the air inlet pipe is automatically turned to a designated position, then the first transmission shaft drives the second transmission wheel and the third transmission wheel to rotate, the pressing block moves downwards to enter into the first groove, and the pressing block is used for fixing the connecting rope; under the arrangement of the supporting plate, the number of turns of the first driving motor is not required to be precisely controlled, the air inlet pipe can be automatically turned over to a designated position, and the difficulty in adjusting the air inlet pipe is reduced; when the fan assembly works, the filter screen has a filtering effect on air entering the first muffler, dust entering the fan assembly is reduced, and the fan assembly is prevented from being influenced by excessive dust adhered to the fan assembly; the fourth connecting plate intermittently moves upwards when the fan assembly works, the fourth connecting plate pulls the top of the filter screen to intermittently move upwards, meshes on the filter screen deform in the process of pulling the filter screen, impurities on the meshes of the filter screen are shaken out, and impurities adhered to the filter screen are reduced; the second supporting spring provides auxiliary effect for the reset of filter screen, avoids the filter screen to damage after stretching many times, plays the guard action to the filter screen.

The first mounting block 27 is provided with a second mounting block 28, the second mounting block 28 is provided with a third movable groove, a third push plate 281 is rotatably connected in the third movable groove, the position, close to the end, of the third push plate is rotatably connected to the inner wall of the third movable groove, a fourth connecting plate is provided with an extension plate 261 matched with the third push plate, the second mounting block 28 is provided with a fourth movable groove, a second transmission shaft 282 is arranged in the fourth movable groove in a penetrating manner, one end of the second transmission shaft 282 is provided with a fourth connecting block 283, the fourth connecting block 283 is provided with a plurality of first fan blades 2831, one side of the fourth movable groove is provided with a fifth movable groove, the bottom of the fifth movable groove is provided with a sixth movable groove, the second transmission shaft 282 is provided with a second protruding block 2821, the second protruding block 2821 is arranged in the fifth movable groove, the sixth movable groove is provided with a fourth push plate 2831, the fourth push plate 2831 is provided with a connecting frame 283, and the third push plate 281 is arranged in the connecting frame in a penetrating manner; a second sliding block is arranged on the fourth push plate 2831, a second sliding groove matched with the second sliding block is arranged on the inner wall of the sixth movable groove, and a third supporting spring 2832 is arranged at the bottom of the fourth push plate; when the fan assembly works, air flow enters from the air inlet pipe, the air flow entering from the air inlet pipe passes through the first fan blades, the first fan blades are driven to rotate under the action of the air flow, the first fan blades drive the second transmission shaft to rotate, the second transmission shaft drives the second protruding block to rotate, the fourth pushing plate is pushed to move downwards when the second protruding block rotates, the fourth pushing plate drives the connecting frame to move downwards, the connecting frame pushes one end of the third pushing plate to move downwards, the other end of the third pushing plate moves upwards, the third pushing plate pushes the extension plate to move upwards, and the extension plate drives the fourth connecting plate to move upwards, so that the fourth connecting plate pulls the filter screen; when the second lug rotates away from the fourth push plate, the fourth push plate moves upwards under the action of the third supporting spring, the third push plate does not push the fourth connecting plate any more, the fourth connecting plate moves downwards under the action of the second supporting spring, and vibration is generated on the filter screen so as to shake off impurities on the filter screen; through the arrangement of the connection point of the third push plate, the connection frame can push the third push plate to rotate with smaller force, so that the fourth connection plate is pushed to move upwards by using the power of the second transmission shaft; the part impurity that trembles off from the filter screen drops in the waste box, collects the impurity that drops through the waste box to unified collection is done to the impurity.

A fifth connecting plate 277 is arranged at the top of the waste box, a third chute is arranged on the fifth connecting plate 277, a fifth connecting block 271 is arranged in the waste box, a baffle plate 2711 is rotatably connected to the fifth connecting block 271, a third sliding block 2713 matched with the third chute is arranged on the fifth connecting block 271, and a first connecting spring 2714 is arranged at the top of the third sliding block 2713; a third movable cavity is formed in the bottom of the fourth movable groove, a sixth connecting block is arranged on the waste box, a fourth movable cavity communicated with the third movable cavity is formed in the sixth connecting block, a third transmission shaft 273 is arranged in the fourth movable cavity, the third transmission shaft 273 penetrates through the third movable cavity, and the second transmission shaft 282 is in transmission fit with the third transmission shaft 273 through a synchronous belt 284; a second sleeve 275 is arranged in the third movable cavity, and the third transmission shaft 273 is arranged in the second sleeve 275 in a penetrating manner; a cavity is formed in the third transmission shaft 273, an eighth movable groove communicated with the cavity is formed in one end of the third transmission shaft 273, a ninth movable groove is formed in the inner wall of the third movable groove, a second connecting spring 276 is arranged in the ninth movable groove, a push block 2761 is arranged on the second connecting spring 276, the push block 2761 penetrates through the eighth movable groove, and a second electromagnet is arranged in the ninth movable groove; when the second sleeve 275 rotates, the fifth connecting block 271 is driven to move downwards; the bottom of the fifth connecting block is provided with a supporting block 2712; when the fan assembly does not work, the first connecting spring pulls the third sliding block to move upwards, the third sliding block moves towards the top of the third sliding groove, the fifth connecting block moves upwards along with the third sliding block, the baffle plate rises to the upper part of the waste box, the baffle plate turns downwards under the action of self gravity, the baffle plate turns over to the supporting block, the baffle plate turns to an inclined state, dust on the baffle plate falls from the baffle plate, and therefore the dust on the baffle plate is collected in the waste box; when the fan assembly works, the second transmission shaft drives the third transmission shaft to rotate, the third transmission shaft drives the second sleeve to rotate, the third sliding block moves downwards when the second sleeve rotates, the fifth connecting block drives the baffle to move downwards, the baffle in an inclined state descends into the waste box, the bottom end of the baffle contacts with the sixth connecting block, the baffle overturns in the horizontal direction under the action of the sixth connecting block along with the movement of the fifth connecting block, after the third sliding block moves to the bottom end of the third sliding groove, the baffle overturns to the horizontal state, the baffle presses the top of the waste box, the sealing effect is achieved on the waste box under the action of the baffle, and the dust in the waste box is prevented from being brought up by the air flow when the fan assembly works.

A sixth movable cavity communicated with the fourth movable cavity is arranged at the bottom of the third sliding groove, a fourth connecting rope is arranged at the bottom of the third sliding block 2713, and one end of the fourth connecting rope is fixedly connected to the second sleeve 275; when the second transmission shaft drives the third transmission shaft to rotate, the second electromagnet is electrified to generate magnetic force, the push block moves into the eighth movable groove, the push block pushes air in the eighth movable groove to enter the cavity, the air pressure in the cavity is increased to enable the side wall of the cavity to expand, the side wall of the cavity is propped against the inner wall of the second sleeve, the third transmission shaft drives the second sleeve to rotate when rotating, the second sleeve rotates to pull the fourth connecting rope, the third sliding block is pulled to move downwards under the action of the fourth connecting rope, the fourth connecting rope cannot move continuously after the third sliding block moves to the bottom of the third sliding groove, the fourth connecting rope plays a limiting role on the second sleeve, the third transmission shaft cannot continuously drive the second sleeve to rotate, the third transmission shaft rotates by itself relative to the second sleeve, and the baffle is pressed in the waste box to prevent dust in the waste box from lifting under the action of air flow; a tenth movable groove is formed in the side wall of the waste box, a mounting strip 272 is arranged in the tenth movable groove, a plurality of bristles 2721 are arranged on the mounting strip 272, and a third connecting spring 2722 is arranged on the mounting strip 272; a fifth movable cavity communicated with the fourth movable cavity is formed at the bottom of the tenth movable cavity, a third connecting shaft 2731 is arranged at one end of the third transmission shaft 273, the third connecting shaft 2731 is arranged in the fifth movable cavity, a second push rod 274 is arranged in the fifth movable cavity, a third push rod 2741 is arranged at the bottom of the second push rod 274, and a third protruding block 2732 matched with the third push rod 2741 is arranged at the bottom of the third connecting shaft 2731; a seventh connecting block 279 is arranged on the inner wall of the fifth movable cavity, a third connecting spring 2791 is arranged on the seventh connecting block 279, and the bottom end of the third connecting spring 2791 is fixedly connected to the third push rod 2741; the third transmission shaft rotates to drive the third connecting shaft to rotate, the third connecting shaft drives the third protruding block to rotate, the third protruding block pushes the third push rod to move upwards, the second push rod pushes the mounting bar to move upwards, the mounting bar moves in the tenth movable groove, vibration is generated on the bristles through movement of the mounting bar, impurities on the bristles are shaken off, and dust falling on the filter screen is prevented from being attached to the bristles and cannot be cleaned; dust on the brush hair is shaken off on the baffle plate, and the brush hair is cleaned once; when the fan assembly body stops working, the second electromagnet is powered off, the push block moves into the ninth movable groove, the space in the eighth movable groove is increased, air in the cavity is not extruded, the side wall of the cavity is not contacted with the inner wall of the second sleeve any more, the second connecting spring pulls the third sliding block to move upwards, the fifth connecting block drives the baffle to move upwards, the baffle turns downwards under the action of self gravity, the baffle abuts against the supporting block to form an inclined plane, the baffle moves upwards along with the fifth connecting block, bristles are contacted with the surface of the baffle, the surface of the baffle is cleaned under the action of the bristles, the bristles scrape dust on the baffle, the dust on the baffle is scraped into the waste box, and the surface of the baffle is cleaned; when the fan assembly works, the air flow drives the first fan blade to rotate, the second transmission shaft drives the third transmission shaft to rotate, the second sleeve rotates along with the third transmission shaft, the third sliding block is pulled to move downwards under the action of the fourth connecting rope, the fifth connecting block drives the baffle to move downwards, the baffle is firstly contacted with the brush hair, dust on the surface of the brush hair is cleaned down under the action of the baffle, the surface of the brush hair is cleaned, the fifth connecting block continues to move downwards, the baffle pushes the brush hair to bend, the baffle passes through one side of the brush hair, the baffle is moved into the waste box to seal the waste box, and dust in the waste box is prevented from being carried by the air flow so as to be collected in the waste box.

A first mounting plate 6 is arranged above the mounting box, a fourth sliding groove is formed in the first mounting plate, and a fourth sliding block 14 matched with the fourth sliding groove is arranged on the mounting box; a fifth sliding block 2710 is arranged on the first mounting block, and a fifth sliding groove matched with the fifth sliding block is arranged on the inner wall of the first muffler; an eleventh movable groove is formed in the side wall of the first silencer, a limiting rod 210 is arranged in the eleventh movable groove, a limiting groove matched with the limiting rod is formed in the side wall of the mounting box, an eighth connecting block 2101 is arranged on the limiting rod, a third protruding block is arranged on the eighth connecting block, and a second groove matched with the third protruding block is formed in the inner wall of the eleventh movable groove; when the fan structure is overhauled, an eighth connecting block is pushed to one end of an eleventh movable groove, the eighth connecting block drives a limiting rod to move, the limiting rod moves out of the limiting groove, the first silencer and the installation box are separated from contact, the second silencer structure is identical to the first silencer structure, the solar silencer and the installation box are separated from contact in the same way, the installation box is pushed along a fourth chute, the installation box moves to a position staggered with the first silencer and the second silencer, the first installation block can be directly pulled out of the first silencer, dust in a waste box is cleaned, and meanwhile, a filter screen can be replaced or parts on the first installation block and the second installation block are maintained; under the mutually supporting of third lug and second recess, play preliminary fixed action to eighth connecting block, promote the connection effect of gag lever post and spacing groove to make the stable connection of install bin and muffler be in the same place when the gag lever post inserts in the spacing groove.

A second mounting plate 11 is arranged in the mounting box, and the fan assembly comprises a second driving motor 12 arranged on the second mounting plate and a plurality of second fan blades 13 arranged on an output shaft of the second driving motor; a sixth sliding block 111 is arranged at the bottom of the second mounting plate, and a sixth sliding groove matched with the sixth sliding block is arranged at the bottom of the second mounting plate; a sixth movable cavity is formed in the side wall of the sixth chute, a third connecting rod 151 is arranged in the sixth movable cavity, a limiting block 15 is arranged on the third connecting rod, the limiting block penetrates through the sixth chute, and a limiting spring 152 is arranged on the third connecting rod; after the mounting box is misplaced with the muffler, the third connecting rod is pushed into the sixth movable cavity, the third connecting rod drives the limiting block to move into the sixth movable cavity, and the sixth sliding block can freely move in the sixth sliding groove after the limiting block enters the sixth movable cavity, so that the second mounting plate can be directly taken out from the mounting box, and the fan assembly is maintained.

The structure of the air outlet pipe is the same as that of the air inlet pipe, and only a first mounting block and a second mounting block are arranged in the first muffler so as to filter the air flow at the air inlet pipe; the second muffler is also provided with a supporting component; the first driving motor and the second driving motor in the drawings are schematic diagrams, and the specific structure of the first driving motor and the second driving motor is the same as that of the motor in the prior art.

Claims (6)

1. The utility model provides a banana type efflux fan structure, includes install bin (1), locates respectively first silencer (2) and second silencer (3) at install bin (1) both ends and locate intake pipe (4) of first silencer (2) one end with locate outlet duct (5) of second silencer (3) one end, be equipped with fan subassembly, its characterized in that in install bin (1): the bottom of the air inlet pipe (4) is rotatably connected to the first muffler (2), the bottom of the air outlet pipe (5) is rotatably connected to the second muffler (3), a first sealing part (42) is arranged on the air inlet pipe (4), a second sealing part is arranged on the air outlet pipe (5), and supporting components for pulling the air inlet pipe (4) and the air outlet pipe (5) are respectively arranged on the first muffler (2) and the second muffler (3); the support assembly comprises a second connecting block (24) arranged on the first muffler (2), a guide frame (23) arranged above the second connecting block (24) and a pressing block (240) arranged in the guide frame (23), a first groove matched with the pressing block (240) is formed in the second connecting block (24), and a first connecting rope penetrates through the first groove; a first sliding block is arranged on the inner wall of the first groove, a first sliding groove matched with the first sliding block is arranged on the pressing block (240), and the pressing block (240) can be driven by a first driving motor (22) to move up and down; the silencer comprises a first silencer (2), a mounting frame (260) is arranged on the first silencer (2), a second driving wheel (2601) and a third driving wheel (2602) are arranged on the mounting frame (260), a fourth driving wheel (2501) matched with the second driving wheel (2601) and the third driving wheel (2602) is arranged on the first driving shaft (250), a second connecting plate (2401) is arranged on a pressing block (240), a third connecting plate (231) is arranged on a guide frame (23), a connecting cavity is arranged on the first silencer (2), a first through hole communicated with the connecting cavity is arranged on a second connecting block (24), a second connecting rope (2402) and a third connecting rope (2403) are respectively arranged at the top and the bottom of the second connecting plate (2401), the second connecting rope (2402) penetrates through the second through hole and is fixedly connected to the second driving wheel (2601), and the third connecting rope (2403) penetrates through the connecting cavity and is fixedly connected to the third driving wheel (2602); the first driving motor (22) is provided with a first sleeve (221) on an output shaft, the first transmission shaft (250) is arranged in the first sleeve (221) in a penetrating mode, the first transmission shaft (250) is provided with a first limiting plate (2504), the first limiting plate (2504) is provided with a reset spring, and one end of the first sleeve (221) is provided with a first electromagnet; the bottom of the air inlet pipe (4) is provided with a first connecting shaft (41), two ends of the first connecting shaft (41) are respectively provided with a second connecting shaft (411), the first muffler (2) is provided with a third connecting block (220), the third connecting block (220) is provided with a first movable cavity, the second connecting shaft (411) is arranged in the first movable cavity in a penetrating mode, a fixed block (2201) is arranged in the first movable cavity, and when the pressing block (240) is pressed in the first groove, the fixed block (2201) is propped against the second connecting shaft (411); a first movable groove (2203) is formed in the inner wall of the first movable cavity, the fixed block (2201) is arranged in the first movable groove (2203) in a penetrating mode, a fixed spring (2202) is arranged on the fixed block (2201), a first air conveying cavity (230) communicated with the first movable groove (2203) is formed in one side of the first movable groove (2203), a second air conveying cavity (290) communicated with the first air conveying cavity (230) is formed in the first muffler (2), and a first push plate (2803) is arranged at the top of the second air conveying cavity (290); a second movable cavity is arranged below the second connecting block (24), a second push plate (280) is arranged in the second movable cavity, a first supporting spring (2801) is arranged at the bottom of the second push plate (280), a second movable groove communicated with the second gas transmission cavity is arranged on the side wall of the second movable cavity, a first connecting rod (2802) is arranged on the second push plate (280), and a first push plate (2803) is arranged on the first connecting rod (2802); the bottom of the pressing block (240) is provided with a first push rod, and the first push rod penetrates through the second movable cavity.

2. A banana-type jet fan structure as claimed in claim 1, wherein: be equipped with first connecting plate (21) on first silencer (2), first connecting plate (21) one side is equipped with first connecting block (2502), wear to be equipped with first transmission shaft (250) on first connecting block (2502), first transmission shaft (250) one end is equipped with and is used for the drive first transmission shaft (250) pivoted first driving motor (22), be equipped with wire roller (270) on first silencer (2), around being equipped with first connecting rope on wire roller (270), first connecting rope one end link firmly in on intake pipe (4), be equipped with on first transmission shaft (250) with wire roller (270) matched with first drive wheel (2503).

3. A banana-type jet fan structure as claimed in claim 2, wherein: a first bump (412) is arranged on the second connecting shaft (411), a plurality of through grooves are arranged on the side wall of the first movable cavity, and a supporting plate (2204) is arranged in each through groove in a penetrating manner; a first mounting block (27) is arranged in the first muffler (2), a connecting pipe (278) is arranged on the first mounting block (27), a second supporting spring (2781) is arranged in the connecting pipe (278), a second connecting rod (262) is arranged at the top end of the second supporting spring (2781), a fourth connecting plate (26) is arranged on the second connecting rod (262), a filter screen (25) is arranged on the first mounting block (27), the bottom end of the filter screen (25) is fixedly connected to the first mounting block (27), the top end of the filter screen (25) is fixedly connected to the fourth connecting plate (26), and a waste box is arranged on the first mounting block (27); the fourth connection plate (26) intermittently moves upward when the fan assembly is in operation.

4. A banana-type jet fan structure as claimed in claim 3, wherein: the novel fan is characterized in that a second installation block (28) is arranged on the first installation block (27), a third movable groove is formed in the second installation block (28), a third push plate (281) is rotatably connected in the third movable groove, a fourth movable groove is formed in the second installation block (28), a second transmission shaft (282) penetrates through the fourth movable groove, a fourth connecting block is arranged at one end of the second transmission shaft (282), a plurality of first fan blades are arranged on the fourth connecting block, a fifth movable groove is formed in one side of the fourth movable groove, a sixth movable groove is formed in the bottom of the fifth movable groove, a second protruding block (2821) is arranged on the second transmission shaft (282), a fourth push plate is arranged in the sixth movable groove, a connecting frame is arranged on the fourth push plate, and the third push plate (281) penetrates through the connecting frame; the fourth pushing plate is provided with a second sliding block, and the inner wall of the sixth movable groove is provided with a second sliding groove matched with the second sliding block.

5. The banana-type jet fan structure as claimed in claim 4, wherein: a fifth connecting plate (277) is arranged at the top of the waste box, a third sliding groove is formed in the fifth connecting plate (277), a fifth connecting block (271) is arranged in the waste box, a baffle plate (2711) is rotatably connected to the fifth connecting block (271), a third sliding block (2713) matched with the third sliding groove is arranged on the fifth connecting block (271), and a first connecting spring (2714) is arranged at the top of the third sliding block (2713); a third movable cavity is formed in the bottom of the fourth movable groove, a sixth connecting block is arranged on the waste box, a fourth movable cavity communicated with the third movable cavity is formed in the sixth connecting block, a third transmission shaft (273) is arranged in the fourth movable cavity, the third transmission shaft (273) penetrates through the third movable cavity, and the second transmission shaft (282) and the third transmission shaft (273) are in transmission fit through a synchronous belt (284); a second sleeve (275) is arranged in the third movable cavity, and the third transmission shaft (273) is arranged in the second sleeve (275) in a penetrating manner; a cavity is formed in the third transmission shaft (273), an eighth movable groove communicated with the cavity is formed in one end of the third transmission shaft (273), a ninth movable groove is formed in the inner wall of the third movable cavity, a second connecting spring (276) is arranged in the ninth movable groove, a push block (2761) is arranged on the second connecting spring (276), the push block (2761) penetrates through the eighth movable groove, and a second electromagnet is arranged in the ninth movable groove; the second sleeve (275) can drive the fifth connecting block (271) to move downwards when rotating.

6. The banana-type jet fan structure as claimed in claim 5, wherein: a sixth movable cavity communicated with the fourth movable cavity is formed in the bottom of the third sliding groove, a fourth connecting rope is arranged at the bottom of the third sliding block (2713), and one end of the fourth connecting rope is fixedly connected to the second sleeve (275); a tenth movable groove is formed in the side wall of the waste box, a mounting strip (272) is arranged in the tenth movable groove, a plurality of bristles (2721) are arranged on the mounting strip (272), and a third connecting spring (2722) is arranged on the mounting strip (272); a fifth movable cavity communicated with the fourth movable cavity is formed in the bottom of the tenth movable cavity, a third connecting shaft (2731) is arranged at one end of the third transmission shaft (273), the third connecting shaft (2731) is arranged in the fifth movable cavity, a second push rod (274) is arranged in the fifth movable cavity, a third push rod (2741) is arranged at the bottom of the second push rod (274), and a third protruding block (2732) matched with the third push rod (2741) is arranged at the bottom of the third connecting shaft (2731); a seventh connecting block (279) is arranged on the inner wall of the fifth movable cavity, a connecting spring is arranged on the seventh connecting block (279), and the bottom end of the connecting spring is fixedly connected to the third push rod (2741).