Building ventilation system convenient to clean and maintain

Abstract

The invention relates to the technical field of ventilation pipelines, in particular to a building ventilation system convenient to clean and maintain, which comprises a ventilation pipeline assembly, a cleaning assembly and a collecting assembly, the ventilation pipeline assembly comprises a main pipeline and a branch pipeline; the cleaning assembly comprises an annular pipe fixedly arranged on the inner wall of the end of the branch pipeline and a plurality of high-pressure airflow nozzles arranged on the surface of the annular pipe in a circumferential array mode, and further comprises a sliding column arranged on the inner wall of the branch pipeline in a sliding mode and a rotating disc rotationally arranged at the end of the sliding column, and a mounting block is fixedly arranged on the surface of the rotating disc. Arc-shaped brushes are arranged on the four outer surfaces of the mounting block; by arranging the cleaning assembly and the collecting assembly, after the main pipeline is used for a long time, four arc-shaped brushes can be driven to rotate to effectively clean the inner wall of the main pipeline, meanwhile, high-pressure airflow is matched, cleaned dust can be guided into a collecting barrel to be collected, and therefore the purpose of automatically and efficiently cleaning the dust on the inner wall of the main pipeline is achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of ventilation ducts, in particular to a building ventilation system convenient to clean and maintain. BACKGROUND

[0002] The building ventilation system is an indispensable part of modern buildings, especially in high-rise buildings and closed spaces, and the performance of the ventilation system directly affects indoor air quality and personnel health. At present, the common ventilation systems on the market mainly include mechanical ventilation and natural ventilation.

[0003] The mechanical ventilation system drives air flow through a fan, has the advantages of flexible adjustment and controllable air volume, but has problems of high energy consumption and large noise; the natural ventilation system relies on building structure design to realize air circulation, is energy-saving and environmentally friendly but is greatly affected by the external environment. In recent years, with the improvement of people's requirements for indoor air quality, the cleaning and maintenance problems of the ventilation system have gradually become prominent, and problems such as pipe dust accumulation and bacterial breeding have seriously affected the ventilation effect and health safety.

[0004] Therefore, the application provides a building ventilation system convenient to clean and maintain. SUMMARY

[0005] The purpose of the application is to solve at least one technical problem in the background art.

[0006] The application provides a building ventilation system convenient to clean and maintain, which comprises a ventilation duct assembly, a cleaning assembly and a collection assembly. The ventilation duct assembly comprises a main duct and a branch duct, and the main duct and the branch duct are fixed by a quick-release buckle. The cleaning assembly comprises an annular pipe fixed on the inner wall of the end portion of the branch duct, and a plurality of high-pressure air jet nozzles arranged in a circumferential array on the surface of the annular pipe, and the end portion of the branch duct is provided with a high-pressure air pump for supplying air to the inside of the annular pipe, the cleaning assembly further comprises a sliding column slidingly arranged on the inner wall of the branch duct, and a rotating disc rotatably arranged on the end portion of the sliding column, and the surface of the rotating disc is fixed with a mounting block, four outer surfaces of the mounting block are provided with arc-shaped brushes, the inside of the sliding column is provided with a mounting cavity, and the inner wall of the mounting cavity is fixed with a driving motor for driving the rotating disc to rotate, the outer surface of the sliding column is provided with four mounting plates arranged in a circumferential array, and the side surface of the mounting plate is fixed with two symmetrical rotating frames, the inner wall of the rotating frame is rotatably provided with a rubber roller, and the outer surface of the rotating frame is provided with a synchronous motor for driving the rubber roller to rotate.

[0007] By adopting the above technical scheme, after the main pipeline is used for a long time, the synchronous motor, the driving motor and the high-pressure air pump are started, the high-pressure air pump delivers high-pressure airflow into the annular pipe and sprays out through the high-pressure airflow nozzle, dust on the inner wall of the main pipeline is effectively cleaned, and the rotation of the synchronous motor drives the rubber roller to rotate, thereby driving the sliding column to automatically enter the main pipeline, at this time, the driving motor is started again, the rotation of the driving motor drives the output shaft and the rotating disc to rotate, the rotation of the rotating disc drives the four arc-shaped brushes to rotate to effectively clean the inner wall of the main pipeline.

[0008] Preferably, the surface of the main pipeline is provided with an air inlet pipe near the branch pipeline, and the surface of the air inlet pipe is provided with a first control valve, the collecting assembly comprises a connecting pipe arranged on the surface of the other end of the main pipeline, the bottom end of the connecting pipe is threadedly connected with a detachable collecting cylinder, the bottom end of the collecting cylinder is embedded with an intercepting mesh disc, the surface of the connecting pipe is provided with a second control valve, and the surface of the main pipeline is provided with a third control valve.

[0009] By adopting the above technical scheme, the first control valve and the third control valve can be closed and the second control valve can be opened during the cleaning of the inner wall of the main pipeline, so that the cleaned dust can be drained into the collecting cylinder for collection, thereby achieving the purpose of automatically and efficiently cleaning the dust on the inner wall of the main pipeline.

[0010] Preferably, the four outer surfaces of the mounting block are fixedly provided with hydraulic rods, and the inner arcs of the four arc-shaped brushes are fixedly connected with the telescopic ends of the four hydraulic rods.

[0011] By adopting the above technical scheme, the arc-shaped brushes can be fully in contact with the inner wall of the main pipeline through the extension of the hydraulic rods, so that the inner wall of the main pipeline with different diameters can be cleaned.

[0012] Preferably, the outer surface of the sliding column is circumferentially and arrayedly provided with four strip-shaped grooves corresponding to the four mounting plates, and the sliding column is internally provided with an annular cavity, the inner walls of the four strip-shaped grooves are all rotationally provided with bidirectional screws, one ends of the four bidirectional screws all extend into the interior of the annular cavity, and the end portion of the sliding column is fixedly provided with a rotating motor for driving the four bidirectional screws to simultaneously rotate.

[0013] By adopting the above technical scheme, the four bidirectional screws can be synchronously rotated through the rotation of the rotating motor.

[0014] Preferably, the output end of the rotating motor extends into the interior of the annular cavity and is fixedly connected with the end portion of one of the bidirectional screws, the inner wall of the annular cavity is rotationally provided with an external tooth ring, the surfaces of the four bidirectional screws are all fixedly provided with toothed discs, and the four toothed discs are all in meshing connection with the external tooth ring.

[0015] By adopting the technical scheme, the rotation of the rotary motor can drive one bidirectional screw to rotate, the rotation of the one bidirectional screw can drive the outer tooth ring to rotate under the action of the tooth disc, the rotation of the outer tooth ring can drive the other three tooth discs to rotate, thereby the other three bidirectional screws can be synchronously driven to rotate.

[0016] Preferably, the inner wall of the strip-shaped groove is slidably provided with two symmetrical sliding blocks, and the surface of each of the two sliding blocks is provided with a threaded hole threadedly connected with the outer surface of the bidirectional screw, the other side surface of the mounting plate is fixedly provided with two symmetrical connecting frames, the end of each of the sliding blocks is provided with a rotating groove, a top rod is rotatably arranged on the inner wall of the rotating groove and the connecting frame, the inner wall of each of the connecting frame and the rotating groove is rotatably provided with a rotating shaft, and the two ends of the top rod are provided with rotating holes, and the inner wall of each of the two rotating holes is fixedly connected with the outer surface of the rotating shaft.

[0017] By adopting the technical scheme, the two sliding blocks can be simultaneously moved to the middle or to both sides during the rotation of the bidirectional screw, so that the rubber roller can be fully in contact with the inner wall of the main pipeline, and then the rubber roller can be moved on the inner wall of the main pipeline with different diameters.

[0018] Preferably, the output end of the driving motor is fixedly provided with an output shaft extending to the end of the sliding column, the end of the output shaft is fixedly connected with the surface of the rotating disc, the inner wall of the mounting cavity is provided with a through hole extending to the end of the sliding column, the inner wall of the through hole is provided with a bearing, the outer ring surface of the bearing is fixedly connected with the inner wall of the through hole, and the inner ring surface of the bearing is fixedly connected with the outer surface of the output shaft.

[0019] By adopting the technical scheme, the rotation of the driving motor can drive the output shaft to rotate, so that the rotating disc can be automatically rotated.

[0020] Preferably, the inside of the mounting cavity is provided with a heat dissipation assembly for dissipating heat of the driving motor in the mounting cavity, the heat dissipation assembly comprises a mesh mounting disc fixedly arranged on the inner wall of the mounting cavity, the driving motor is fixedly arranged on the surface of the mesh mounting disc, and the inner wall of the mounting cavity is provided with a heat dissipation channel penetrating through the sliding column.

[0021] By adopting the technical scheme, the heat generated by the driving motor in the mounting cavity can be quickly dissipated through the heat dissipation channel.

[0022] Preferably, the heat dissipation assembly further comprises a mounting ring fixed at the end of the sliding column, and four fixed cylinders fixed in a circumferential array on the inner arc surface of the mounting ring, the inner wall of the fixed cylinder is slidably provided with a piston, and the end of the piston is fixedly provided with a connecting rod extending to the outer surface of the fixed cylinder, the other end of the connecting rod is fixedly provided with an arc-shaped pressing plate, and the surface of the connecting rod is sleeved with a reset spring, the two ends of the reset spring are fixedly connected with the end of the fixed cylinder and the surface of the arc-shaped pressing plate respectively, and the surface of the output shaft is fixedly provided with an eccentric disc which sequentially extrudes the four arc-shaped pressing plates.

[0023] By adopting the above technical scheme, in the process of driving the motor to drive the output shaft to rotate, the rotation of the output shaft drives the eccentric disc to rotate, and the rotation of the eccentric disc realizes the purpose of continuously reciprocating extrusion on the four arc-shaped pressing plates.

[0024] Preferably, the outer surface of the fixed cylinder is respectively provided with an air suction pipe and an air blowing pipe, one end of the air suction pipe extends to the outer surface of the mounting ring and is provided with a filter cover, the other end of the air suction pipe extends to the inside of the fixed cylinder, and the surface of the air suction pipe is provided with an air suction one-way valve, one end of the air blowing pipe extends to the inside of the mounting cavity, the other end of the air blowing pipe extends to the inside of the fixed cylinder, and the surface of the air blowing pipe is provided with an air blowing one-way valve.

[0025] By adopting the above technical scheme, when the arc-shaped pressing plate is extruded, the connecting rod can drive the piston to move, so that the air in the inside of the fixed cylinder is pressed into the mounting cavity, when the eccentric disc is separated from the arc-shaped pressing plate, the piston can be restored to the original position under the action of the reset spring, so that the external air can be sucked into the fixed cylinder after being filtered through the air suction pipe, thereby realizing the purpose of continuously and uninterruptedly inflating the inside of the mounting cavity.

[0026] In summary, the present application has at least one of the following beneficial technical effects: 1. The building ventilation system convenient to clean and maintain, by setting the cleaning assembly and the collecting assembly, after the main pipeline is used for a long time, the first control valve and the third control valve can be closed respectively, and the second control valve can be opened, and then the synchronous motor, the driving motor and the high-pressure air pump are started, the high-pressure air pump delivers high-pressure airflow into the annular pipe, and the high-pressure airflow is sprayed out through the high-pressure airflow nozzle, so that the dust on the inner wall of the main pipeline is effectively cleaned, at the same time, the rotation of the synchronous motor drives the rubber roller to rotate, so that the sliding column automatically enters the main pipeline, at this time, the driving motor is started, the rotation of the driving motor drives the output shaft and the rotating disc to rotate, the rotation of the rotating disc drives the four arc-shaped brushes to rotate and effectively clean the inner wall of the main pipeline, and at the same time, cooperating with the high-pressure airflow, the collected dust can be drained into the collecting cylinder for collection, so that the dust on the inner wall of the main pipeline can be automatically and efficiently cleaned.

[0027] 2. The building ventilation system described in this application, which is easy to clean and maintain, utilizes a heat dissipation component. During the automatic cleaning of the inner wall of the main duct by an arc-shaped brush driven by the rotation of the drive motor, the output shaft rotates, causing an eccentric disc to rotate. This eccentric disc continuously and reciprocates, pressing four arc-shaped pressure plates. When the arc-shaped pressure plates are pressed, a connecting rod pushes a piston, forcing air from inside the fixed cylinder into the installation cavity. When the eccentric disc disengages from the arc-shaped pressure plates, a return spring causes the piston to return to its original position, allowing filtered external air to be drawn into the fixed cylinder through the suction pipe. This continuously inflates the installation cavity, allowing hot air to escape through the heat dissipation channel, effectively cooling the drive motor inside the installation cavity. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the rear view structure of this application; Figure 3 This is a schematic diagram of the internal structure of the branch pipe in this application; Figure 4 This application Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the three-dimensional structure of the sliding column in this application; Figure 6 This is a schematic diagram of the cross-sectional structure of the sliding column in this application; Figure 7 This application Figure 6 Enlarged structural diagram at point B; Figure 8 This is a side view schematic diagram of the mounting ring structure in this application.

[0029] Explanation of reference numerals in the attached figures: 100. Ventilation duct assembly; 101. Main duct; 102. Branch duct; 103. Air inlet duct; 104. First control valve; 200. Cleaning component; 201. Ring tube; 202. High-pressure airflow nozzle; 203. High-pressure air pump; 204. Sliding column; 205. Rotary disk; 206. Mounting block; 207. Arc-shaped brush; 208. Mounting cavity; 209. Drive motor; 2010. Mounting plate; 2011. Rubber roller; 2012. Synchronous motor; 2013. Hydraulic rod; 2014. Two-way lead screw; 2015. Rotary motor; 2016. External gear ring; 2017. Gear plate; 2018. Slider; 2019. Push rod; 2020. Output shaft; 300, collecting assembly; 301, connecting pipe; 302, collecting cylinder; 303, intercepting net disc; 304, second control valve; 305, third control valve; 400, heat dissipation assembly; 401, net-shaped mounting disc; 402, heat dissipation channel; 403, mounting ring; 404, fixing cylinder; 405, piston; 406, connecting rod; 407, arc-shaped pressing plate; 408, reset spring; 409, eccentric disc; 4010, air suction pipe; 4011, air blowing pipe; 4012, air suction one-way valve; 4013, air blowing one-way valve. DETAILED DESCRIPTION

[0030] The following Figures 1 to 8 The application will be described in further detail below.

[0031] Embodiment I Please refer to Figures 1 to 7 A building ventilation system convenient for cleaning and maintenance comprises a ventilation pipe assembly 100, a cleaning assembly 200 and a collecting assembly 300; the ventilation pipe assembly 100 comprises a main pipe 101 and a branch pipe 102, and the main pipe 101 and the branch pipe 102 are fixed by quick-release buckles; the cleaning assembly 200 comprises an annular pipe 201 fixed on the inner wall of the end of the branch pipe 102, and a plurality of high-pressure air jet nozzles 202 arranged in a circumferential array on the surface of the annular pipe 201, and the end of the branch pipe 102 is provided with a high-pressure air pump 203 for supplying air to the inside of the annular pipe 201; the cleaning assembly 200 further comprises a sliding column 204 slidingly arranged on the inner wall of the branch pipe 102, and a rotating disc 205 rotatably arranged at the end of the sliding column 204, and the surface of the rotating disc 205 is fixed with a mounting block 206, four outer surfaces of the mounting block 206 are provided with arc-shaped brushes 207, the inside of the sliding column 204 is provided with a mounting cavity 208, and the inner wall of the mounting cavity 208 is fixed with a driving motor 209 for driving the rotating disc 205 to rotate, the outer surface of the sliding column 204 is provided with four mounting plates 2010 in a circumferential array, and one side surface of the mounting plate 2010 is fixed with two symmetrical rotating frames, the inner wall of the rotating frame is rotatably provided with a rubber roller 2011, and the outer surface of the rotating frame is provided with a synchronous motor 2012 for driving the rubber roller 2011 to rotate.

[0032] Specifically, after the main pipeline 101 is used for a long time, the synchronous motor 2012, the driving motor 209 and the high-pressure air pump 203 are started, the high-pressure air pump 203 delivers high-pressure airflow into the annular pipe 201, and the high-pressure airflow is sprayed out through the high-pressure airflow nozzle 202, so that the dust on the inner wall of the main pipeline 101 is effectively cleaned, at the same time, the rotation of the synchronous motor 2012 drives the rubber roller 2011 to rotate, so that the sliding column 204 automatically enters the main pipeline 101, at this time, the driving motor 209 is started again, the rotation of the driving motor 209 drives the output shaft 2020 and the rotating disc 205 to rotate, and the rotation of the rotating disc 205 drives the four arc-shaped brushes 207 to rotate to effectively clean the inner wall of the main pipeline 101.

[0033] Please refer to Figure 1 , Figure 2 , the surface of the main pipeline 101 is provided with an air inlet pipe 103 near the branch pipeline 102, and the surface of the air inlet pipe 103 is provided with a first control valve 104, the collecting assembly 300 comprises a connecting pipe 301 arranged on the surface of the other end of the main pipeline 101, a detachable collecting cylinder 302 is threadedly connected to the bottom end of the connecting pipe 301, a blocking mesh disc 303 is embedded in the bottom end of the collecting cylinder 302, a second control valve 304 is arranged on the surface of the connecting pipe 301, and a third control valve 305 is arranged on the surface of the main pipeline 101.

[0034] Specifically, during the process of cleaning the inner wall of the main pipeline 101, the first control valve 104 and the third control valve 305 are closed respectively, and the second control valve 304 is opened, so that the dust cleaned can be drained into the collecting cylinder 302 for collection, thereby achieving the purpose of automatically and efficiently cleaning the dust on the inner wall of the main pipeline 101.

[0035] Please refer to Figure 3 , Figure 4 , the four outer surfaces of the mounting block 206 are fixedly provided with hydraulic rods 2013, and the inner arc surfaces of the four arc-shaped brushes 207 are fixedly connected with the telescopic ends of the four hydraulic rods 2013.

[0036] Specifically, the arc-shaped brushes 207 can be fully in contact with the inner wall of the main pipeline 101 by the elongation of the hydraulic rods 2013, so that the inner wall of the main pipeline 101 with different diameters can be cleaned.

[0037] Please refer to Figure 6 , Figure 7The outer surface of the sliding column 204 is provided with four strip-shaped grooves corresponding to the four mounting plates 2010 in a circumferential array, and the inside of the sliding column 204 is provided with an annular cavity, the inner walls of the four strip-shaped grooves are all rotationally provided with bidirectional screws 2014, one end of each of the four bidirectional screws 2014 extends to the inside of the annular cavity, and the end portion of the sliding column 204 is fixedly provided with a rotary motor 2015 for driving the four bidirectional screws 2014 to rotate simultaneously.

[0038] Specifically, the rotation of the rotary motor 2015 can drive the four bidirectional screws 2014 to rotate synchronously.

[0039] Please refer to Figure 5 , Figure 6 The output end of the rotary motor 2015 extends to the inside of the annular cavity and is fixedly connected with the end portion of one bidirectional screw 2014, the inner wall of the annular cavity is rotationally provided with an external tooth ring 2016, the surface of each of the four bidirectional screws 2014 is fixedly provided with a tooth disc 2017, and the four tooth discs 2017 are all in meshing connection with the external tooth ring 2016.

[0040] Specifically, the rotation of the rotary motor 2015 can drive one bidirectional screw 2014 to rotate, and the rotation of one bidirectional screw 2014 can drive the external tooth ring 2016 to rotate under the action of the tooth disc 2017, the rotation of the external tooth ring 2016 drives the other three tooth discs 2017 to rotate, thereby driving the other three bidirectional screws 2014 to rotate synchronously.

[0041] Please refer to Figure 5 , Figure 6 The inner walls of the strip-shaped grooves are slidably provided with two symmetrical sliding blocks 2018, the surfaces of the two sliding blocks 2018 are both provided with threaded holes in screw connection with the outer surface of the bidirectional screw 2014, the other side surface of the mounting plate 2010 is fixedly provided with two symmetrical connecting frames, the end portion of the sliding block 2018 is provided with a rotating groove, the inner walls of the rotating groove and the connecting frame are rotationally provided with a jacking rod 2019, the inner walls of the connecting frame and the rotating groove are both rotationally provided with a rotating shaft, the two ends of the jacking rod 2019 are both provided with rotating holes, and the inner walls of the two rotating holes are both fixedly connected with the outer surfaces of the two rotating shafts.

[0042] Specifically, the rotation of the bidirectional screw 2014 can drive the two sliding blocks 2018 to move towards the middle or to both sides simultaneously, thereby enabling the rubber roller 2011 to be in full contact with the inner wall of the main pipeline 101, and further enabling the rubber roller 2011 to move on the inner wall of the main pipeline 101 with different diameters.

[0043] Please refer to Figure 6 , Figure 7The output end of the driving motor 209 is fixedly provided with an output shaft 2020 extending to the end of the sliding column 204, the end of the output shaft 2020 is fixedly connected with the surface of the rotating disc 205, the inner wall of the mounting cavity 208 is provided with a through hole extending to the end of the sliding column 204, the inner wall of the through hole is provided with a bearing, the outer ring surface of the bearing is fixedly connected with the inner wall of the through hole, and the inner ring surface of the bearing is fixedly connected with the outer surface of the output shaft 2020.

[0044] Specifically, the rotation of the driving motor 209 can drive the output shaft 2020 to rotate, so that the rotating disc 205 can be automatically rotated.

[0045] In the embodiment, by arranging the cleaning assembly 200 and the collecting assembly 300, after the main pipeline 101 is used for a long time, the first control valve 104 and the third control valve 305 can be closed respectively, the second control valve 304 is opened, and the synchronous motor 2012, the driving motor 209 and the high-pressure air pump 203 are started again. The high-pressure air pump 203 delivers high-pressure airflow into the annular pipe 201 and sprays out through the high-pressure airflow nozzle 202, so that the dust on the inner wall of the main pipeline 101 can be effectively cleaned. At the same time, the rotation of the synchronous motor 2012 drives the rubber roller 2011 to rotate, so that the sliding column 204 automatically enters the main pipeline 101. At this time, the driving motor 209 is started again, the rotation of the driving motor 209 drives the output shaft 2020 and the rotating disc 205 to rotate, and the rotation of the rotating disc 205 drives the four arc-shaped brushes 207 to rotate to effectively clean the inner wall of the main pipeline 101. At the same time, cooperating with the high-pressure airflow, the cleaned dust can be drained into the collecting cylinder 302 for collection, so that the dust on the inner wall of the main pipeline 101 can be automatically and efficiently cleaned.

[0046] Embodiment two On the basis of embodiment one, referring to Figures 6 to 8 , and different from embodiment one: Please refer to Figure 6 , Figure 7 , the inside of the mounting cavity 208 is provided with a heat dissipation assembly 400 for dissipating heat of the driving motor 209 in the mounting cavity 208, the heat dissipation assembly 400 comprises a mesh mounting disc 401 fixedly arranged on the inner wall of the mounting cavity 208, and the driving motor 209 is fixedly arranged on the surface of the mesh mounting disc 401. The inner wall of the mounting cavity 208 is provided with a heat dissipation channel 402 penetrating through the sliding column 204.

[0047] Specifically, the heat dissipation channel 402 can quickly dissipate the heat generated by the driving motor 209 in the mounting cavity 208.

[0048] Please refer to Figure 7 , Figure 8The heat dissipation assembly 400 further comprises a mounting ring 403 fixed at the end of the sliding column 204, and four fixed cylinders 404 fixed in a circumferential array on the inner arc surface of the mounting ring 403, the inner wall of the fixed cylinder 404 is slidingly provided with a piston 405, and the end of the piston 405 is fixedly provided with a connecting rod 406 extending to the outer surface of the fixed cylinder 404, the other end of the connecting rod 406 is fixedly provided with an arc-shaped pressing plate 407, and the surface of the connecting rod 406 is sleeved with a reset spring 408, the two ends of the reset spring 408 are fixedly connected with the end of the fixed cylinder 404 and the surface of the arc-shaped pressing plate 407 respectively, and the surface of the output shaft 2020 is fixedly provided with an eccentric disc 409 which successively extrudes the four arc-shaped pressing plates 407.

[0049] Specifically, during the rotation of the output shaft 2020 driven by the driving motor 209, the rotation of the output shaft 2020 drives the rotation of the eccentric disc 409, and the rotation of the eccentric disc 409 realizes the purpose of continuously reciprocating extrusion on the four arc-shaped pressing plates 407.

[0050] Please refer to Figure 7 , Figure 8 The outer surface of the fixed cylinder 404 is respectively provided with an air suction pipe 4010 and an air blowing pipe 4011, one end of the air suction pipe 4010 extends to the outer surface of the mounting ring 403 and is provided with a filter cover, the other end of the air suction pipe 4010 extends to the inside of the fixed cylinder 404, and the surface of the air suction pipe 4010 is provided with an air suction one-way valve 4012, one end of the air blowing pipe 4011 extends to the inside of the mounting cavity 208, the other end of the air blowing pipe 4011 extends to the inside of the fixed cylinder 404, and the surface of the air blowing pipe 4011 is provided with an air blowing one-way valve 4013.

[0051] Specifically, when the arc-shaped pressing plate 407 is extruded, the connecting rod 406 can be driven to push the piston 405 to move, so that the air in the fixed cylinder 404 is pressed into the mounting cavity 208, when the eccentric disc 409 is separated from the arc-shaped pressing plate 407, the piston 405 can be driven to return to the original position under the action of the reset spring 408, so that the external air can be filtered and sucked into the fixed cylinder 404 through the air suction pipe 4010, thereby realizing the purpose of continuously and uninterruptedly inflating the inside of the mounting cavity 208.

[0052] In the embodiment, by setting the heat dissipation assembly 400, in the process of realizing the automatic cleaning of the inner wall of the main pipeline 101 by the arc-shaped brush 207 driven by the rotation of the driving motor 209, when the output shaft 2020 is driven to rotate by the driving motor 209, the rotation of the output shaft 2020 drives the eccentric disc 409 to rotate, the rotation of the eccentric disc 409 realizes the purpose of continuously reciprocating and extruding the four arc-shaped pressing plates 407, when the arc-shaped pressing plate 407 is extruded, the connecting rod 406 can drive the piston 405 to move, so that the air in the fixed cylinder 404 is pressed into the mounting cavity 208, when the eccentric disc 409 is separated from the arc-shaped pressing plate 407, the piston 405 can be driven to return to the original position under the action of the return spring 408, so that the external air is filtered and then sucked into the fixed cylinder 404 through the air suction pipe 4010, thereby realizing the purpose of continuously and uninterruptedly inflating the inside of the mounting cavity 208, so that the hot air in the mounting cavity 208 is discharged through the heat dissipation channel 402, thereby realizing the purpose of effectively dissipating heat for the driving motor 209 in the mounting cavity 208.

[0053] Working principle: After the main pipeline 101 is used for a long time, the first control valve 104 and the third control valve 305 can be closed respectively, the second control valve 304 is opened, and the synchronous motor 2012, the driving motor 209 and the high-pressure air pump 203 are started again. The high-pressure air pump 203 delivers high-pressure airflow into the annular pipe 201 and sprays out through the high-pressure airflow nozzle 202, which effectively cleans the dust on the inner wall of the main pipeline 101. At the same time, the rotation of the synchronous motor 2012 drives the rubber roller 2011 to rotate, thereby driving the sliding column 204 to automatically enter the main pipeline 101. At this time, the driving motor 209 is started again. The rotation of the driving motor 209 drives the output shaft 2020 and the rotating disc 205 to rotate, and the rotation of the rotating disc 205 drives the four arc-shaped brushes 207 to rotate, which effectively cleans the inner wall of the main pipeline 101. At the same time, cooperating with the high-pressure airflow, the cleaned dust can be drained into the collecting cylinder 302 for collection, thereby realizing the purpose of automatically and efficiently cleaning the dust on the inner wall of the main pipeline 101. Moreover, in the process of realizing the automatic cleaning of the inner wall of the main pipeline 101 by the arc-shaped brushes 207 driven by the rotation of the driving motor 209, when the output shaft 2020 is driven to rotate by the driving motor 209, the rotation of the output shaft 2020 drives the eccentric disc 409 to rotate, which realizes the purpose of continuously reciprocatingly pressing the four arc-shaped pressing plates 407. When the arc-shaped pressing plates 407 are pressed, the connecting rod 406 can push the piston 405 to move, so that the air in the fixed cylinder 404 is pressed into the mounting cavity 208. When the eccentric disc 409 is separated from the arc-shaped pressing plate 407, the piston 405 can be driven to return to the original position under the action of the return spring 408, so that the external air is sucked into the fixed cylinder 404 after being filtered through the air suction pipe 4010, thereby realizing the purpose of continuously and uninterruptedly inflating the inside of the mounting cavity 208. The hot air in the mounting cavity 208 is discharged through the heat dissipation channel 402, thereby realizing the purpose of effectively cooling the driving motor 209 in the mounting cavity 208.

[0054] The embodiments of the specific embodiment are the preferred embodiments of the present application, but do not limit the protection scope of the present application, wherein the same parts are denoted by the same reference numerals. Therefore, equivalent changes made according to the structure, shape and principle of the present application should be covered by the protection scope of the present application.

Claims

1. A building ventilation system which facilitates cleaning maintenance, characterised in that: The utility model relates to a ventilation pipeline assembly (100), a cleaning assembly (200) and a collection assembly (300) are included. The ventilation pipeline assembly (100) includes a main pipeline (101) and a branch pipeline (102), and the main pipeline (101) and the branch pipeline (102) are fixed by quick release buckles. The cleaning assembly (200) includes a ring pipe (201) fixed to the inner wall of the end of the branch pipeline (102), a plurality of high-pressure air jet nozzles (202) arranged in a circumferential array on the surface of the ring pipe (201), and a high-pressure air pump (203) arranged at the end of the branch pipeline (102) for supplying air to the inside of the ring pipe (201), the cleaning assembly (200) further includes a sliding column (204) slidingly arranged on the inner wall of the branch pipeline (102), and a rotating disc (205) rotatably arranged at the end of the sliding column (204), and the surface of the rotating disc (205) is fixed with a mounting block (206), four outer surfaces of the mounting block (206) are provided with arc-shaped brushes (207), the inside of the sliding column (204) is provided with a mounting cavity (208), and the inner wall of the mounting cavity (208) is fixed with a drive motor (209) for driving the rotating disc (205) to rotate, the outer surface of the sliding column (204) is provided with four mounting plates (2010) in a circumferential array, and the side surface of the mounting plate (2010) is fixed with two symmetrical rotating frames, the inner wall of the rotating frame is rotatably provided with a rubber roller (2011), and the outer surface of the rotating frame is provided with a synchronous motor (2012) for driving the rubber roller (2011) to rotate.

2. A building ventilation system for ease of cleaning maintenance according to claim 1, wherein, The surface of the main pipeline (101) is provided with an air inlet pipe (103) near the branch pipeline (102), and the surface of the air inlet pipe (103) is provided with a first control valve (104), the collection assembly (300) includes a connecting pipe (301) arranged on the surface of the other end of the main pipeline (101), the bottom end of the connecting pipe (301) is threadedly connected with a detachable collection cylinder (302), the bottom end of the collection cylinder (302) is embedded with a screen disc (303), the surface of the connecting pipe (301) is provided with a second control valve (304), and the surface of the main pipeline (101) is provided with a third control valve (305).

3. A building ventilation system for ease of cleaning and maintenance according to claim 1, wherein, The four outer surfaces of the mounting block (206) are fixed with hydraulic rods (2013), and the inner arc surfaces of the four arc-shaped brushes (207) are fixedly connected with the telescopic ends of the four hydraulic rods (2013), respectively.

4. A building ventilation system for ease of cleaning and maintenance according to claim 1, wherein, The outer surface of the sliding column (204) is provided with four strip-shaped grooves corresponding to the four mounting plates (2010) in a circumferential array, and the inside of the sliding column (204) is provided with an annular cavity, the inner walls of the four strip-shaped grooves are rotatably provided with bidirectional screws (2014), one ends of the four bidirectional screws (2014) extend into the inside of the annular cavity, and the end of the sliding column (204) is fixed with a rotating motor (2015) for driving the four bidirectional screws (2014) to rotate simultaneously.

5. A building ventilation system facilitating cleaning maintenance according to claim 4, characterized in that The output end of the rotary motor (2015) extends to the inside of the annular cavity and is fixedly connected with the end of the bidirectional screw rod (2014), the inner wall of the annular cavity is rotationally provided with an external tooth ring (2016), the surfaces of the four bidirectional screw rods (2014) are each fixedly provided with a tooth disc (2017), and the four tooth discs (2017) are each in meshing engagement with the external tooth ring (2016).

6. A building ventilation system facilitating cleaning maintenance according to claim 5, characterized in that The inner wall of the strip-shaped groove is slidingly provided with two symmetrical sliding blocks (2018), the surfaces of the two sliding blocks (2018) are each provided with a threaded hole in threaded connection with the outer surface of the bidirectional screw rod (2014), the other side surface of the mounting plate (2010) is fixedly provided with two symmetrical connecting frames, the end of the sliding block (2018) is provided with a rotating groove, the inner walls of the rotating groove and the connecting frame are rotationally provided with a jacking rod (2019), the inner walls of the connecting frame and the rotating groove are each rotationally provided with a rotating shaft, the two ends of the jacking rod (2019) are each provided with a rotating hole, and the inner walls of the two rotating holes are each fixedly connected with the outer surface of the two rotating shafts.

7. A building ventilation system facilitating cleaning maintenance according to claim 6, characterized in that The output end of the driving motor (209) is fixedly provided with an output shaft (2020) extending to the end of the sliding column (204), the end of the output shaft (2020) is fixedly connected with the surface of the rotating disc (205), the inner wall of the mounting cavity (208) is provided with a through hole extending to the end of the sliding column (204), the inner wall of the through hole is provided with a bearing, the outer ring surface of the bearing is fixedly connected with the inner wall of the through hole, and the inner ring surface of the bearing is fixedly connected with the outer surface of the output shaft (2020).

8. A building ventilation system facilitating cleaning maintenance according to claim 7, characterized in that The inside of the mounting cavity (208) is provided with a heat dissipation assembly (400) for dissipating heat of the driving motor (209) in the mounting cavity (208), the heat dissipation assembly (400) comprises a mesh-shaped mounting disc (401) fixedly arranged on the inner wall of the mounting cavity (208), the driving motor (209) is fixedly arranged on the surface of the mesh-shaped mounting disc (401), and the inner wall of the mounting cavity (208) is provided with a heat dissipation channel (402) penetrating through the sliding column (204).

9. A building ventilation system facilitating cleaning maintenance according to claim 8, characterized in that The heat dissipation assembly (400) further comprises a mounting ring (403) fixedly arranged at the end of the sliding column (204), and four fixed cylinders (404) fixedly arranged in a circumferential array on the inner arc surface of the mounting ring (403), the inner wall of the fixed cylinder (404) is slidingly provided with a piston (405), the end of the piston (405) is fixedly provided with a connecting rod (406) extending to the outer surface of the fixed cylinder (404), the other end of the connecting rod (406) is fixedly provided with an arc-shaped pressing plate (407), the surface of the connecting rod (406) is sleeved with a return spring (408), the two ends of the return spring (408) are respectively fixedly connected with the end of the fixed cylinder (404) and the surface of the arc-shaped pressing plate (407), and the surface of the output shaft (2020) is fixedly provided with an eccentric disc (409) sequentially pressing the four arc-shaped pressing plates (407).

10. A building ventilation system facilitating cleaning maintenance according to claim 9, characterized in that The outer surface of the fixing cylinder (404) is respectively provided with an air suction pipe (4010) and an air blowing pipe (4011), one end of the air suction pipe (4010) extends to the outer surface of the mounting ring (403) and is provided with a filter cover, the other end of the air suction pipe (4010) extends to the inside of the fixing cylinder (404), and the surface of the air suction pipe (4010) is provided with an air suction one-way valve (4012), one end of the air blowing pipe (4011) extends to the inside of the mounting cavity (208), the other end of the air blowing pipe (4011) extends to the inside of the fixing cylinder (404), and the surface of the air blowing pipe (4011) is provided with an air blowing one-way valve (4013).

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