A fan silencer

Abstract

The present invention relates to the technical field of fan silencers, and specifically to a fan silencer, comprising: a fan body, a silencer mechanism for silencing the fan body, and an adjusting mechanism for adjusting the air outlet direction of the fan body; the silencer mechanism comprises: a mounting shell fixedly mounted on one side of the fan body, a silencer fixedly mounted on the inner wall of the mounting shell, a filter assembly for filtering the air entering the inner cavity of the silencer when the fan body is in use, and a cleaning assembly for cleaning the filter assembly. In the present invention, the air outlet side of the mounting shell can be sealed by abutting against each other on one side of two movable plates that are close to each other, thereby avoiding the problem that the silencer is directly exposed to the air for a long time, causing dust to enter the inner cavity of the silencer and affecting the silencer effect, so that the silencer can be protected from dust when not in use, thereby ensuring the silencer effect.

Description

Technical Field

[0001] The invention relates to the technical field of fan mufflers, and in particular to a fan muffler. Background Art

[0002] A fan is a machine that increases gas pressure and delivers gas simultaneously. During the operation of the fan, it will generate strong noise, which will have an adverse effect on people around it. Therefore, in order to reduce the impact of the noise, a muffler is often installed at the air outlet of the fan to absorb the noise.

[0003] Existing fan silencers are generally installed in an external manner by docking with the air outlet of the fan, and the fan silencer is usually composed of multiple silencer pipes with silencer holes welded on a mounting plate, and then the mounting plate is welded inside the pipe shell. When the air compressed by the fan enters the fan silencer, the noise generated is refracted and reflected by the silencer pipe and will be sucked into the silencer cotton through the silencer holes, thereby achieving the purpose of reducing the noise intensity.

[0004] Patent CN216343060U discloses a built-in suction muffler for a fan, including a muffler body, both sides of the muffler body are connected with mounting tubes, the surface of the mounting tube is slidably connected with a fitting plate, an elastic fitting structure is provided between the fitting plate and the mounting tube, support plates are fixed on both sides of the bottom of the muffler body, the outer side of the support plate is slidably connected with a vertical plate, the bottom of the vertical plate is fixed with a support seat, limiting holes are provided inside the support plate, the number of the limiting holes is four, the inside of the vertical plate is slidably connected with a mounting rod, and the mounting rod is slidably connected to the limiting hole; the utility model has the advantages of being adjustable and installed, good fit between the device and the fan, and effective noise reduction.

[0005] However, when the fan silencer is not in use, the silencer is directly exposed to the air for a long time, which causes dust in the air to easily enter the inner cavity of the silencer, affecting the silencing effect.

[0006] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the invention

[0007] The object of the present invention is to provide a fan muffler which can effectively solve the above technical problems.

[0008] In order to achieve the purpose of the present invention, the following technical scheme is adopted:

[0009] A fan silencer comprises: a fan body, a silencer mechanism for silencing the fan body, and an adjustment mechanism for adjusting the air outlet direction of the fan body;

[0010] The muffler mechanism comprises: a mounting shell fixedly mounted on one side of the fan body, a muffler fixedly mounted on the inner wall of the mounting shell, a filter assembly for filtering air entering the inner cavity of the muffler when the fan body is in use, a cleaning assembly for cleaning the filter assembly, and a dustproof assembly for preventing dust from entering the muffler when the fan body is not in use;

[0011] The dustproof assembly includes: a movable plate attached to one side of the mounting shell, a power source for driving the movable plate to move, and a dust removal unit for removing dust from the silencer before the fan body is used;

[0012] The dust removal unit includes: a fixed shell fixedly installed on the side wall of the mounting shell, an air bag fixedly installed on the inner wall of the fixed shell, a linkage plate for driving the air bag to expand and contract, an annular tube fixedly installed on the inner wall of the mounting shell, a nozzle plugged and installed on the side wall of the annular tube, and an air guide tube for transporting the gas in the air bag to the inner cavity of the annular tube.

[0013] Furthermore, the filter assembly includes: a fixing plate fixedly mounted on the inner wall of the mounting shell, a mounting groove provided on the side wall of the fixing plate, and a filter screen movably mounted in the inner cavity of the mounting groove.

[0014] Furthermore, the cleaning component includes: a cleaning cylinder for removing dust from the filter, a rotating unit for driving the cleaning cylinder to rotate when the filter is not seriously clogged, a resetting unit for driving the filter to reset during dust removal, and a driving unit for driving the cleaning cylinder to actively rotate when the filter is seriously clogged.

[0015] Furthermore, the rotating unit includes: a fixing bar fixedly mounted on the inner wall of the mounting shell, a rotating shaft rotatably mounted on the side wall of the fixing bar, a fan fixedly sleeved on the outer edge of the rotating shaft, a connecting shaft rotatably mounted on the outer edge of the rotating shaft, a connecting bevel gear fixedly mounted on the other end of the connecting shaft, an bevel gear ring fixedly mounted in the inner cavity of the mounting shell and meshing with the connecting bevel gear, and a discharge opening opened at the bottom of the mounting shell; the cleaning tube is fixedly sleeved on the outer edge of the connecting shaft.

[0016] Furthermore, the reset unit includes: an annular groove opened on the inner wall of the installation groove, an annular plate fixedly installed on the side wall of the filter screen and located in the inner cavity of the annular groove, and a reset spring fixedly installed between the side wall of the annular plate and the inner wall of the annular groove.

[0017] Furthermore, the driving unit includes: a rotating rod rotatably mounted on the side wall of the mounting shell, an active bevel gear fixedly mounted on the bottom end of the rotating rod, a driven bevel gear fixedly sleeved on the outer edge of the rotating shaft and meshing with the active bevel gear, a docking piece arranged at the top end of the rotating rod, and a driving piece that drives the docking piece to dock and rotate.

[0018] Furthermore, the docking part includes: a circular plate, a mounting hole opened at the bottom of the circular plate, a plug-in rod movably installed in the inner cavity of the mounting hole, a plug-in spring fixedly installed between the plug-in rod and the inner wall of the mounting hole, a docking plate fixedly installed at the top of the rotating rod, and a docking hole opened at the top of the docking plate.

[0019] Furthermore, the driving member includes: a fixed cylinder installed on the top of the mounting shell, a sleeve rotatably installed on the top of the fixed cylinder, a power source 1 for driving the sleeve to rotate, a movable tube movably installed in the inner cavity of the sleeve, and a power source 2 fixedly installed between the inner wall of the sleeve and the inner wall of the movable tube.

[0020] Furthermore, the cleaning component also includes: a scraping component for scraping off flocs on the surface of the filter screen;

[0021] The scraper assembly comprises: a connecting rod fixedly mounted on the outer edge of the rotating shaft, a connecting shell fixedly mounted on the side wall of the connecting rod, a scraper movably mounted in the inner cavity of the connecting shell, and a linkage spring fixedly mounted between the side wall of the scraper and the inner wall of the connecting shell;

[0022] The side wall of the scraper close to the filter screen is serrated.

[0023] Further, the adjustment mechanism includes: a long shaft rotatably mounted on the side wall of the mounting shell, an adjustment plate fixedly sleeved on the outer edge of the long shaft, and an adjustment unit driving the adjustment plate to adjust the angle;

[0024] The adjusting unit comprises: a power source 4 for driving the long shaft to rotate, a linkage gear fixedly mounted on the end of the long shaft, and a synchronous belt meshing with the linkage gear.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The fan silencer of the present invention can seal the air outlet side of the mounting shell by abutting against each other at the adjacent sides of two movable plates, thereby avoiding the problem that the silencer is directly exposed to the air for a long time, causing dust to enter the inner cavity of the silencer and affecting the silencer effect. The silencer can be protected from dust when not in use, thereby ensuring the silencer effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0028] Figure 1 It is a three-dimensional schematic diagram of a fan muffler of the present invention;

[0029] Figure 2 It is a schematic diagram of the three-dimensional structure of a fan muffler of the present invention;

[0030] Figure 3 It is a three-dimensional schematic diagram of a fan silencer of the present invention from another angle;

[0031] Figure 4 It is a schematic diagram of the three-dimensional structure of a fan muffler of the present invention from another angle;

[0032] Figure 5 A schematic cross-sectional view of a fan body of a fan silencer according to the present invention;

[0033] Figure 6 A schematic cross-sectional view of a component installation shell of a fan muffler according to the present invention;

[0034] Figure 7 A fan muffler of the present invention Figure 6 Enlarged view of point A in the middle;

[0035] Figure 8 A three-dimensional schematic diagram of a muffler component of a fan muffler according to the present invention;

[0036] Fig. 9 A three-dimensional schematic diagram of a component movable plate of a fan muffler of the present invention;

[0037] Fig.10 A three-dimensional schematic diagram of a filter screen component of a fan muffler of the present invention;

[0038] Fig.11 It is a three-dimensional schematic diagram of a cleaning cylinder of a fan muffler component of the present invention;

[0039] Fig.12 It is a cross-sectional schematic diagram of a component fixing plate of a fan muffler of the present invention;

[0040] Fig.13 A fan silencer of the present invention Fig.12 Enlarged view of point B in the middle;

[0041] Fig.14 It is a three-dimensional schematic diagram of a component adjustment plate of a fan muffler of the present invention;

[0042] Fig.15 A three-dimensional schematic diagram of a scraper component of a fan muffler of the present invention;

[0043] Fig.16 The present invention is a schematic cross-sectional view of a circular plate component of a fan muffler.

[0044] In the figure:

[0045] 1. Fan body; 2. Silencing mechanism; 21. Mounting shell; 22. Silencing element; 23. Filter assembly; 231. Fixing plate; 232. Filter screen; 24. Cleaning assembly; 241. Cleaning cylinder; 242. Rotating unit; 2421. Rotating shaft; 2422. Fan; 2423. Linking shaft; 2424. Linking bevel gear; 2425. Bevel gear ring; 243. Reset unit; 2431. Ring plate; 2432. Reset spring; 244. Driving unit; 2441. Rotating rod; 2442. Active bevel gear; 2443. Driven bevel gear; 2444. Docking piece; 24441. Round plate; 24442. Connecting rod; 24443. Connecting spring; 2444 4. Docking plate; 2445. Driving member; 24451. Sleeve; 24452. Movable tube; 24453. Power source one; 24454. Power source two; 25. Dust-proof component; 251. Movable plate; 252. Power source three; 253. Dust removal unit; 2531. Fixed shell; 2532. Air bag; 2533. Interlocking plate; 2534. Air guide tube; 2535. Annular tube; 2536. Nozzle; 26. Scraping component; 261. Connecting rod; 262. Connecting shell; 263. Interlocking spring; 264. Scraper; 3. Adjustment mechanism; 31. Adjustment plate; 32. Long shaft; 33. Adjustment unit; 331. Power source four; 332. Interlocking gear; 333. Synchronous belt. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the present invention, rather than all embodiments.

[0047] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0048] like Figures 1 to 16 As shown, a fan silencer of the present invention comprises: a fan body 1, a silencer mechanism 2 for silencing the fan body 1, and an adjustment mechanism 3 for adjusting the air outlet direction of the fan body 1;

[0049] The silencer mechanism 2 includes: a mounting shell 21 fixedly mounted on one side of the fan body 1, a silencer 22 fixedly mounted on the inner wall of the mounting shell 21, a filter assembly 23 for filtering air entering the inner cavity of the silencer 22 when the fan body 1 is in use, a cleaning assembly 24 for cleaning the filter assembly 23, and a dustproof assembly 25 for preventing dust from the silencer 22 when the fan body 1 is not in use;

[0050] The silencer 22 is composed of a silencer pipe and silencer cotton. A silencer hole is provided on the side wall of the silencer pipe. When the fan body 1 is started, the air compressed by the fan body 1 enters the silencer 22. The generated noise is refracted and reflected by the silencer pipe and then sucked into the silencer cotton through the silencer hole, thereby reducing the noise intensity.

[0051] The dust-proof assembly 25 comprises: a movable plate 251 attached to one side of the mounting shell 21, the movable plate 251 is provided with two, a power source 3 252 for driving the movable plate 251 to move, and a dust removal unit 253 for removing dust from the muffler 22 before the fan body 1 is used; the dust removal unit 253 comprises: a fixed shell 2531 fixedly mounted on the side wall of the mounting shell 21, a movable end of the power source 3 252 fixedly mounted on the side wall of the movable plate 251, a fixed end thereof fixedly mounted on the side wall of the fixed shell 2531, an air bag 2532 fixedly mounted on the inner wall of the fixed shell 2531, and a linkage plate 2533 for driving the air bag 2532 to extend and retract, and the linkage plate 2533 slides on the fixed shell 25 31, and one side of the linkage plate 2533 is fixedly mounted on the side wall of the movable plate 251, the other side of the airbag 2532 is fixedly mounted on the side wall of the linkage plate 2533, an annular tube 2535 is fixedly mounted on the inner wall of the mounting shell 21, and a nozzle 2536 is plugged and mounted on the side wall of the annular tube 2535, a plurality of nozzles 2536 are arranged, which are evenly distributed on one side of the annular tube 2535, and all of the nozzles 2536 are directed to the silencer 22, and an air guide pipe 2534 that transports the gas in the airbag 2532 to the inner cavity of the annular tube 2535, one end of the air guide pipe 2534 is plugged into the side wall of the airbag 2532, and the other end is plugged into the side wall of the annular tube 2535.

[0052] When the fan body 1 is not in use, the two movable plates 251 are close to each other on one side, thereby sealing the air outlet side of the mounting shell 21, thereby avoiding the problem that the silencer 22 is directly exposed to the air for a long time, causing dust to enter the inner cavity of the silencer 22 and affect the silencer effect. The silencer 22 can be protected from dust when not in use, thereby ensuring the silencer effect of the silencer 22.

[0053] When the fan body 1 is used, the power source 3 252 is first started, thereby driving the two movable plates 251 to move away from each other, so that the two movable plates 251 have no sealing effect on the air outlet side of the mounting shell 21. At this time, the fan body 1 can be started for use.

[0054] When the two movable plates 251 move away from each other, the adjacent interlocking plates 2533 can be driven to move, and the two interlocking plates 2533 drive the adjacent airbags 2532 to be compressed. Through the compression of the airbags 2532, the air in the airbags 2532 can enter the inner cavity of the annular tube 2535 through the air guide tube 2534 and be sprayed out through the nozzle 2536, so that the surface of the silencer 22 can be blown and cleaned, thereby achieving the cleaning of the surface of the silencer 22 before the fan body 1 is used, and further ensuring the silencer effect of the silencer 22.

[0055] Since the airbag 2532 compresses the air, the air forms a greater impact force, thereby improving the effect of cleaning the surface of the silencer 22.

[0056] It is to be added here that the power source three 252 is preferably: a cylinder.

[0057] The filter assembly 23 includes: a fixing plate 231 fixedly mounted on the inner wall of the mounting shell 21 , a mounting groove provided on the side wall of the fixing plate 231 , and a filter screen 232 movably mounted in the inner cavity of the mounting groove.

[0058] When the fan body 1 is started, the air blown out is likely to contain dust and flocs. After these dust and flocs follow the high-speed air into the silencer 22, since a large number of silencer holes are opened on the side wall of the silencer, the inner wall of the silencer will be relatively rough, which will easily cause dust and flocs to adhere to the inner wall of the silencer, causing the silencer holes opened in the silencer to be covered, seriously affecting the silencer effect of the silencer. In the long run, a large amount of dust and flocs will accumulate on the inner wall of the silencer, further reducing the silencer effect of the silencer. By setting the filter net 232, the air entering the silencer 22 can be filtered to prevent the silencer 22 from being affected by the dust and flocs in the air, thereby ensuring the silencer effect.

[0059] The cleaning assembly 24 includes: a cleaning cylinder 241 for cleaning dust from the filter 232, a rotating unit 242 for driving the cleaning cylinder 241 to rotate when the filter 232 is not seriously clogged, a resetting unit 243 for driving the filter 232 to reset during the dust cleaning process, and a driving unit 244 for driving the cleaning cylinder 241 to actively rotate when the filter 232 is seriously clogged; the rotating unit 242 includes: a fixing bar fixedly mounted on the inner wall of the mounting shell 21, and a rotating shaft 242 rotatably mounted on the side wall of the fixing bar. 21. A fan 2422 fixedly sleeved on the outer edge of the rotating shaft 2421, a linkage shaft 2423 rotatably mounted on the outer edge of the rotating shaft 2421, a linkage bevel gear 2424 fixedly mounted on the other end of the linkage shaft 2423, an umbrella gear ring 2425 fixedly mounted in the inner cavity of the mounting shell 21 and meshing with the linkage bevel gear 2424, and a discharge opening opened at the bottom of the mounting shell 21, the discharge opening close to one side of the fixed plate 231; the cleaning cylinder 241 is fixedly sleeved on the outer edge of the linkage shaft 2423.

[0060] When the fan body 1 is started, air can be blown into the inner cavity of the mounting shell 21, thereby driving the fan 2422 to rotate, the fan 2422 drives the rotating shaft 2421 to rotate, the rotating shaft 2421 drives the connecting shaft 2423 to rotate, and the connecting shaft 2423 drives the cleaning cylinder 241 to rotate in a circle with the center of the rotating shaft 2421 as the center of the circle, thereby cleaning the dust on the surface of the filter 232 to prevent the dust from clogging the filter 232 and affecting the ventilation effect, and the cleaned dust can be discharged through the discharge opening.

[0061] It should be noted here that the surface of the cleaning cylinder 241 is provided with soft bristles, which can be inserted into the mesh of the filter 232, so as to sweep off the dust on the surface of the filter 232, thereby achieving preliminary cleaning of the filter 232, and driving the cleaning cylinder 241 to rotate in a circle with the center of the rotating shaft 2421 as the center through the connecting shaft 2423, thereby achieving comprehensive cleaning of the filter 232 and improving the cleaning effect.

[0062] In the process that the linkage shaft 2423 drives the cleaning cylinder 241 to rotate in a circle with the center of the rotating shaft 2421 as the center, the linkage shaft 2423 synchronous belt 333 drives the linkage bevel gear 2424 to rotate in a circle with the center of the rotating shaft 2421 as the center. Since the linkage bevel gear 2424 and the bevel gear ring 2425 are meshed with each other, the linkage bevel gear 2424 rotates on its own while rotating in a circle with the center of the rotating shaft 2421 as the center, thereby driving the cleaning cylinder 241 to rotate on its own. Through the self-rotation of the cleaning cylinder 241, the soft hair on the surface of the cleaning cylinder 241 can push out the dust and flocs in the mesh of the filter 232, thereby realizing the secondary cleaning of the filter 232 and further improving the cleaning effect.

[0063] By rotating the cleaning cylinder 241 in a circle with the center of the rotating shaft 2421 as the center and rotating on its own, the dust and flocs in the mesh of the filter 232 can be removed and swept away, thereby solving the problem that the dust and flocs in the mesh of the filter 232 are difficult to clean, thereby ensuring the cleaning effect of the filter 232.

[0064] Since the central axis of the cleaning cylinder 241 is parallel to and does not overlap with the central axis of the linkage shaft 2423, when the cleaning cylinder 241 rotates, the filter screen 232 can be intermittently squeezed, causing the filter screen 232 to vibrate; during the vibration of the filter screen 232, the reset unit 243 is driven to operate, and the reset unit 243 includes: an annular groove provided on the inner wall of the installation groove, an annular plate 2431 fixedly mounted on the side wall of the filter screen 232 and located in the inner cavity of the annular groove, and a reset spring 2432 fixedly mounted between the side wall of the annular plate 2431 and the inner wall of the annular groove; during the vibration of the filter screen 232, the annular plate 2431 is driven to slide in the inner cavity of the annular groove, and the reset spring 2432 is driven to deform, and the filter screen 232 can be reset when it is not squeezed by the elastic force of the reset spring 2432, thereby achieving the purpose of intensifying the vibration of the filter screen 232, and the dust attached to the surface of the filter screen 232 can be shaken off by the vibration of the filter screen 232, thereby further improving the cleaning effect.

[0065] In the present application, the cleaning cylinder 241 cleans the filter 232 while driving the filter 232 to vibrate. On the one hand, the soft hair on the surface of the cleaning cylinder 241 can be inserted into the mesh holes, so as to remove the dust and flocs in the mesh holes of the filter 232, thereby facilitating cleaning. On the other hand, the filter 232 is vibrated, thereby shaking off the dust on the surface of the filter 232, thereby achieving a multiple cleaning effect on the filter 232 and improving the cleaning effect.

[0066] The driving unit 244 includes: a rotating rod 2441 rotatably mounted on the side wall of the mounting shell 21, an active bevel gear 2442 fixedly mounted on the bottom end of the rotating rod 2441, a driven bevel gear 2443 fixedly sleeved on the outer edge of the rotating shaft 2421 and meshing with the active bevel gear 2442, and a docking piece 2444 arranged at the top end of the rotating rod 2441. The docking piece 2444 includes: a circular plate 24441, a mounting hole opened at the bottom of the circular plate 24441, a plug-in rod 24442 movably mounted in the inner cavity of the mounting hole, a plug-in spring 24443 fixedly mounted between the plug-in rod 24442 and the inner wall of the mounting hole, a docking plate 24444 fixedly mounted on the top end of the rotating rod 2441, A docking hole is provided at the top of the docking plate 24444; a driving member 2445 drives the docking member 2444 to dock and rotate, the driving member 2445 comprises: a fixed cylinder installed at the top of the mounting shell 21, a sleeve 24451 rotatably installed at the top of the fixed cylinder, a power source 1 24453 driving the sleeve 24451 to rotate, a movable tube 24452 movably installed in the inner cavity of the sleeve 24451, and a power source 2 24454 fixedly installed between the inner wall of the sleeve 24451 and the inner wall of the movable tube 24452; the driving unit 244 also comprises: an air volume tester for detecting the ventilation volume of the filter 232, and a controller electrically connected to the air volume tester, and the controller is electrically connected to the driving member 2445.

[0067] When the filter 232 is not seriously clogged, the cleaning cylinder 241 is driven to rotate by the rotating unit 242 to clean the filter 232; when the filter 232 is seriously clogged, the air volume passing through the filter 232 is reduced, and the air volume alone cannot drive the rotating unit 242 to operate. At this time, the cleaning cylinder 241 is driven by the driving unit 244 to clean the filter 232; that is: the air volume threshold is set by an air volume tester; when the ventilation volume of the filter 232 is higher than the air volume threshold, the driving unit 244 is not started; when the ventilation volume of the filter 232 is lower than the air volume threshold, the driving unit 244 is started.

[0068] When the driving unit 244 is started, that is, the power source 2 24454 is started by the controller to drive the movable tube 24452 to move downward, the movable tube 24452 drives the circular plate 24441 to move downward, the circular plate 24441 drives the plurality of plug-in rods 24442 to move downward, and the circular plate 24441 and the docking plate 24444 fit each other, at this time, the power source 1 24453 is started by the controller, the power source 1 24453 drives the sleeve 24451 to rotate, the sleeve 24451 drives the movable tube 24452 to rotate, and the movable tube 24452 drives the circular plate 24441 to rotate;

[0069] When the plug-in rod 24442 is aligned with the plug-in hole at the top of the docking plate 24444, the plug-in rod 24442 is directly inserted into the inner cavity of the plug-in hole, and the docking plate 24444 can be driven to rotate, and the docking plate 24444 drives the rotating rod 2441 to rotate, and the rotating rod 2441 drives the active bevel gear 2442 to rotate, and the active bevel gear 2442 drives the driven bevel gear 2443 to rotate, and the driven bevel gear 2443 drives the rotating shaft 2421 to rotate, and then the cleaning cylinder 241 can be driven to rotate, and the filter screen 232 can be actively cleaned by the rotation of the cleaning cylinder 241;

[0070] When the plug-in rod 24442 is not aligned with the plug-in hole at the top of the docking plate 24444, the plug-in rod 24442 is moved to the inner cavity of the installation hole by the abutting force of the top of the docking plate 24444, and drives the plug-in spring 24443 to be compressed. At this time, the circular plate 24441 drives the plug-in rod 24442 to rotate. When the plug-in rod 24442 rotates to be aligned with the plug-in hole, the elastic force of the plug-in spring 24443 can drive the plug-in rod 24442 to be inserted into the inner cavity of the plug-in hole, thereby driving the docking plate 24444 to rotate through the plug-in rod 24442, and further driving the cleaning cylinder 241 to rotate. Through the rotation of the cleaning cylinder 241, the filter screen 232 can be actively cleaned.

[0071] When the ventilation volume of the cleaned filter 232 is higher than the air volume threshold again, the controller controls the driving unit 244 to recover, and at this time, the rotating unit 242 is switched to drive the cleaning cylinder 241 to clean the filter 232 .

[0072] In the present application, through the cooperation between the rotating unit 242 and the driving unit 244, when the filter 232 is not seriously clogged, the cleaning cylinder 241 is driven to rotate by the rotating unit 242 to clean the filter 232. At this time, the rotating unit 242 is driven only by the air volume, and no external power is required, thereby reducing the cost of use; when the filter 232 is seriously clogged, the cleaning cylinder 241 is driven by the driving unit 244 to clean the filter 232, which solves the problem that when the filter 232 is seriously clogged, the air volume passing through the filter 232 is reduced, and the air volume alone cannot drive the rotating unit 242 to operate, thereby ensuring the ventilation effect of the filter 232.

[0073] It is to be added here that power source 1 24453 is preferably: a motor; power source 2 24454 is preferably: a cylinder.

[0074] As a further extension of the present application, although the cleaning cylinder 241 can clean the filter 232, the flocs are easily entangled in the filter 232, resulting in poor cleaning effect of the cleaning cylinder 241, and then resulting in incomplete cleaning of the filter 232, which is easy to form blockage and affect ventilation efficiency. Therefore, the cleaning component 24 in the present application also includes: a scraping component 26 for scraping off the flocs on the surface of the filter 232.

[0075] The scraping assembly 26 includes: a connecting rod 261 fixedly mounted on the outer edge of the rotating shaft 2421, a connecting shell 262 fixedly mounted on the side wall of the connecting rod 261, a scraper 264 movably mounted in the inner cavity of the connecting shell 262, and a linkage spring 263 fixedly mounted between the side wall of the scraper 264 and the inner wall of the connecting shell 262; the side wall of the scraper 264 close to the filter screen 232 is serrated.

[0076] When the rotating shaft 2421 rotates, it can drive the connecting rod 261 to rotate, the connecting rod 261 can drive the connecting shell 262 to rotate, and the connecting shell 262 can drive the scraper 264 to rotate, so that the flocs on the surface of the filter screen 232 can be cleaned. Since the side of the scraper 264 close to the filter screen 232 is set to be serrated, the flocs are entangled between the serrations, so that the flocs can be effectively removed, avoiding the clogging of the filter screen 232 by the flocs, and ensuring the cleaning effect of the filter screen 232.

[0077] By setting the linkage spring 263, the scraper 264 can always fit the surface of the filter screen 232 during the process of cleaning the filter screen 232, thereby avoiding the influence of the vibration of the filter screen 232 and ensuring the cleaning effect of the flocs.

[0078] It should be noted here that since the serrated design of the scraper 264 has many sharp edges and uneven surfaces, these edges and surfaces can more effectively grasp and cut the floc when they come into contact with the floc; the smooth surface simply pushes the floc away or makes it entangled on the surface when it comes into contact with the floc, making it difficult to scrape it off completely; secondly, the serrated design can cut or tear the floc with its sharp edges when scraping off the floc, and this cutting action can remove the floc more thoroughly rather than just pushing it away or temporarily removing it; in addition, the serrated design can also use its uneven surface to increase the contact area with the floc, and this increased contact area can provide more opportunities to capture and scrape off the floc, thereby removing the floc more effectively.

[0079] In the present application, the cleaning cylinder 241 and the scraper 264 cooperate with each other, and the soft hair on the surface of the cleaning cylinder 241 can be inserted into the mesh, and the flocs in the mesh can be pulled out when rotating, so that the scraper 264 can clean the flocs, thereby solving the problem of incomplete cleaning of the filter 232, easy blockage, and affecting the ventilation efficiency.

[0080] The adjustment mechanism 3 includes: a long shaft 32 rotatably mounted on the side wall of the mounting shell 21, an adjustment plate 31 fixedly sleeved on the outer edge of the long shaft 32, and an adjustment unit 33 that drives the adjustment plate 31 to adjust the angle; the adjustment unit 33 includes: a power source 331 that drives the long shaft 32 to rotate, a linkage gear 332 fixedly mounted on the end of the long shaft 32, and a synchronous belt 333 that meshes with the linkage gear 332.

[0081] When the fan body 1 is started and the air outlet direction needs to be adjusted, the adjacent long shaft 32 can be driven to rotate by starting the power source 331, and the long shaft 32 drives the adjacent connecting gear 332 to rotate, and the connecting gear 332 drives the synchronous belt 333 to rotate, thereby driving several long shafts 32 to rotate synchronously, and then driving several adjustment plates 31 to rotate, and by synchronously adjusting the angles of multiple adjustment plates 31, the air outlet direction is adjusted to meet the ventilation needs in different directions.

[0082] When the fan body 1 is not running, the power source 331 can be started to drive the multiple adjustment plates 31 to reset. At this time, the adjacent adjustment plates 31 are fitted together, and the adjustment plates 31 located at the top and bottom are respectively fitted with the inner walls of the mounting shell 21, thereby sealing the air outlet of the mounting shell 21. The silencer 22 can be protected from dust when not in use, thereby ensuring the silencer effect of the silencer 22.

[0083] In the present application, through the cooperation between the dustproof component 25 and the adjustment mechanism 3, when the fan body 1 is not running, the inner cavity of the silencer 22 is provided with a double dustproof protection effect, thereby avoiding the silencer 22 being directly exposed to the air for a long time, causing dust to enter the inner cavity of the silencer 22 and affect the silencer effect, thereby ensuring the silencer effect of the silencer 22.

[0084] It should be added here that the power source four 331 is preferably: a motor.

[0085] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0086] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A fan muffler, characterized in that: include: A fan body, a silencing mechanism for silencing the fan body, and an adjusting mechanism for adjusting the air outlet direction of the fan body; The muffler mechanism comprises: a mounting shell fixedly mounted on one side of the fan body, a muffler fixedly mounted on the inner wall of the mounting shell, a filter assembly for filtering air entering the inner cavity of the muffler when the fan body is in use, a cleaning assembly for cleaning the filter assembly, and a dustproof assembly for preventing dust from entering the muffler when the fan body is not in use; The dustproof assembly includes: a movable plate attached to one side of the mounting shell, a power source for driving the movable plate to move, and a dust removal unit for removing dust from the silencer before the fan body is used; The dust removal unit comprises: a fixed shell fixedly mounted on the side wall of the mounting shell, an air bag fixedly mounted on the inner wall of the fixed shell, a linkage plate for driving the air bag to expand and contract, an annular tube fixedly mounted on the inner wall of the mounting shell, a nozzle plugged and mounted on the side wall of the annular tube, and an air guide tube for transporting the gas in the air bag to the inner cavity of the annular tube; The filter assembly comprises: a fixing plate fixedly mounted on the inner wall of the mounting shell, a mounting groove provided on the side wall of the fixing plate, and a filter screen movably mounted in the inner cavity of the mounting groove; The cleaning assembly includes: a cleaning cylinder for removing dust from the filter, a rotating unit for driving the cleaning cylinder to rotate when the filter is not seriously clogged, a resetting unit for driving the filter to reset during the dust removal process, and a driving unit for driving the cleaning cylinder to actively rotate when the filter is seriously clogged; The rotating unit comprises: a fixing bar fixedly mounted on the inner wall of the mounting shell, a rotating shaft rotatably mounted on the side wall of the fixing bar, a fan fixedly sleeved on the outer edge of the rotating shaft, a linkage shaft rotatably mounted on the outer edge of the rotating shaft, a linkage bevel gear fixedly mounted on the other end of the linkage shaft, an umbrella gear ring fixedly mounted in the inner cavity of the mounting shell and meshing with the linkage bevel gear, and a discharge opening provided at the bottom of the mounting shell; the cleaning cylinder is fixedly sleeved on the outer edge of the linkage shaft; The reset unit comprises: an annular groove provided on the inner wall of the installation groove, an annular plate fixedly installed on the side wall of the filter screen and located in the inner cavity of the annular groove, and a reset spring fixedly installed between the side wall of the annular plate and the inner wall of the annular groove; The driving unit comprises: a rotating rod rotatably mounted on the side wall of the mounting shell, an active bevel gear fixedly mounted on the bottom end of the rotating rod, a driven bevel gear fixedly sleeved on the outer edge of the rotating shaft and meshing with the active bevel gear, a docking piece arranged at the top end of the rotating rod, and a driving piece driving the docking piece to dock and rotate; The docking member comprises: a circular plate, a mounting hole provided at the bottom of the circular plate, a plug rod movably installed in the inner cavity of the mounting hole, a plug spring fixedly installed between the plug rod and the inner wall of the mounting hole, a docking plate fixedly installed at the top of the rotating rod, and a docking hole provided at the top of the docking plate; The driving member includes: a fixed cylinder installed on the top of the mounting shell, a sleeve rotatably installed on the top of the fixed cylinder, a power source 1 for driving the sleeve to rotate, a movable tube movably installed in the inner cavity of the sleeve, and a power source 2 fixedly installed between the inner wall of the sleeve and the inner wall of the movable tube.

2. A fan muffler as claimed in claim 1, characterized in that: The cleaning component also includes: a scraping component for scraping off flocs on the surface of the filter screen; The scraper assembly comprises: a connecting rod fixedly mounted on the outer edge of the rotating shaft, a connecting shell fixedly mounted on the side wall of the connecting rod, a scraper movably mounted in the inner cavity of the connecting shell, and a linkage spring fixedly mounted between the side wall of the scraper and the inner wall of the connecting shell; The side wall of the scraper close to the filter screen is serrated.

3. A fan silencer as claimed in claim 1, characterized in that: The adjustment mechanism comprises: a long shaft rotatably mounted on the side wall of the mounting shell, an adjustment plate fixedly sleeved on the outer edge of the long shaft, and an adjustment unit driving the adjustment plate to adjust the angle; The adjusting unit comprises: a power source 4 for driving the long shaft to rotate, a linkage gear fixedly mounted on the end of the long shaft, and a synchronous belt meshing with the linkage gear.

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