A filter dust removal and anti-blocking mechanism for a circulating fan

Abstract

The present invention relates to the field of fans, and in particular to a filter screen dust removal and anti-blocking mechanism for a circulating fan, comprising a circulating fan, a filter screen being slidably installed at the air inlet of the circulating fan, the filter screen being arranged in an inclined manner, a fixing frame being fixedly installed at the upper edge of the rear end of the circulating fan, a connecting shaft being rotatably installed at the upper end of the fixing frame, a propulsion gear being coaxially inlaid at the front end of the connecting shaft, a circulating tooth plate being meshed below the propulsion gear, the circulating tooth plate being fixed to the filter screen, a driving member being installed at the upper end of the fixing frame, the driving member being connected to the connecting shaft, and a dust removal member being arranged at the upper end of the filter screen. The present invention ensures the continuous circulation of air supply and is convenient for use.

Description

Technical Field

[0001] The invention relates to the field of fans, and in particular to a filter screen dust removal and anti-blocking mechanism for a circulating fan. Background Art

[0002] The circulating fan mainly generates air flow through the internal rotor and impeller, and is also equipped with important components such as motors, controllers, filters, etc. When the circulating fan starts working, the motor drives the impeller to rotate, generating forced airflow, and sucking air from the top, filtering it through the filter and then blowing it out from the air outlet, so as to circulate and achieve the purpose of air supply. However, when the circulating fan is working in some dusty factories, the filter at the air inlet will quickly be covered with dust under the suction of the wind. At this time, in order to ensure the air volume, the filter often needs to be removed for cleaning. During this process, the circulating fan is in a shutdown state, resulting in interruption of air supply, so it is difficult to meet the demand for circulating air supply. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings existing in the background technology and to propose a filter dust removal and anti-blocking mechanism for a circulating fan.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is: a filter dust removal and anti-blocking mechanism of a circulating fan, comprising a circulating fan, a filter screen is slidably installed at the air inlet of the circulating fan, the filter screen is inclined, a fixing frame is fixedly installed at the upper edge of the rear end of the circulating fan, a connecting shaft is rotatably installed at the upper end of the fixing frame, a propulsion gear is coaxially inlaid at the front end of the connecting shaft, a circulating tooth plate is meshed below the propulsion gear, the circulating tooth plate is fixed to the filter screen, a driving rotating member is installed at the upper end of the fixing frame, the driving rotating member is connected to the connecting shaft, and a dust removal member is arranged at the upper end of the filter screen;

[0005] The driving member includes a driving shaft rotatably mounted on the upper end of the fixing frame, the driving shaft is located on the side of the connecting shaft, a small gear is coaxially inlaid on the front end of the driving shaft, a large gear is coaxially inlaid on the outer surface of the connecting shaft, the small gear is meshed with the large gear, a servo motor is fixedly mounted on the rear end of the fixing frame, and the output end of the servo motor is fixed to the driving shaft;

[0006] The dust removal component includes two cleaning brush cylinders symmetrically and fitly mounted on the upper end of the filter, the air inlet of the circulating fan is located between the two cleaning brush cylinders, extension frames are fixedly mounted on both sides of the fixed frame, and the ends of the two extension frames are rotatably mounted with cylinder shafts, the cleaning brush cylinder is fixed to the outer surface of the cylinder shaft, the outer side cover of the cleaning brush cylinder is provided with a cover shell, the cover shell is connected to the extension frame, a small pulley is coaxially fixedly mounted on the rear end of the cylinder shaft, a large pulley is coaxially fixedly mounted on the outer surface of the drive shaft, a belt is connected between the large pulley and the small pulley, a shell frame is fixedly mounted on the upper end of the cover shell, and the end of the shell frame is fixed to the extension frame, and water spray pipes are provided on the opposite sides of the two cleaning brush cylinders, and the water spray pipes are fixed to the extension frame.

[0007] Preferably, a guide sleeve is fixedly installed at the lower end of the circulating tooth plate, a guide rail is fitted inside the guide sleeve, the guide rail passes through both sides of the guide sleeve, a rail frame is fixedly installed at the end of the guide rail, and the rail frame is fixed to the fixed frame.

[0008] Preferably, the water spray pipe is fixedly connected to a ball valve, the valve stem end of the ball valve is coaxially inlaid with an opening gear, the front of the opening gear is meshed with an opening tooth plate, a connecting seat is fixedly installed on the lower front end of the opening tooth plate, the connecting seat is elastically connected to the extension frame, a lower guide wheel is installed on the lower end of the connecting seat, a side guide wheel is installed on the side of the connecting seat, and two push rails are elastically installed on the rear end of the circulating tooth plate, the opposite ends of the two push rails are inclined downward, the opposite surfaces of the two push rails are inclined, and the push rails correspond to the lower guide wheel.

[0009] Preferably, a guide prism is fixedly installed on the upper end of the connecting seat, an extension frame is fixedly installed on the upper end of the protruding frame, the guide prism passes through and is slidably installed on the end of the extension frame, the upper end of the guide prism is inlaid with an anti-drop cap, the anti-drop cap fits the upper end of the extension frame, a compression spring is wrapped around the outer side of the guide prism, the lower end of the compression spring is fixed to the upper end of the connecting seat, and the upper end of the compression spring is fixed to the lower end of the extension frame.

[0010] Preferably, two guide sleeves are symmetrically fixedly installed at the lower end of the push rail, and stepped guide columns are fitted inside the guide sleeves. The stepped guide columns extend through the front and rear ends of the guide sleeves, and the front ends of the stepped guide columns are fixed to the circulating gear plates. The rear ends of the stepped guide columns are coaxially inlaid with top caps, and the outer sides of the stepped guide columns are wound with return springs, and the rear ends of the return springs are fixed to the top caps, and the front ends of the return springs are fixed to the guide sleeves.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The rotating drive shaft can drive the propulsion gear on the connecting shaft to rotate slowly through the small gear and the large gear, thereby driving the circulating toothed plate meshing with the propulsion gear to move sideways. At this time, the guide sleeve slides on the guide rail to assist the sideways movement of the circulating toothed plate, and the filter is driven to move by the sideways moving circulating toothed plate, so that the end of the filter covered with dust is separated from the air inlet of the circulating fan, and the other end of the filter is moved to the air inlet of the circulating fan. In this way, the filter is exchanged to ensure normal ventilation of the filter without stopping the machine, thereby ensuring the continuous circulation of air.

[0013] 2. When the filter is moving slowly, the driving shaft will accelerate the rotation of the cleaning brush barrel on the barrel shaft through the action of the large pulley and the small pulley, so as to clean the dust attached to the filter by itself. At the same time, the moving circulating tooth plate will also drive the push rail to move synchronously. At this time, the lower guide wheel rolls on the inclined section of the push rail to drive the opening tooth plate to move up. At this time, the guide prism slides on the extension frame to guide the opening tooth plate, so as to use the upward opening tooth plate to drive the opening gear to rotate, thereby driving the valve stem of the ball valve to rotate, so as to open the ball valve, so that the water in the water spray pipe can flow out and fall on the filter, so as to promote the cleaning of the dust by the cleaning brush barrel. The process does not require workers to clean manually, thereby effectively facilitating use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a filter dust removal and anti-blocking mechanism of a circulating fan of the present invention;

[0015] Figure 2 It is a rear view of a filter screen dust removal and anti-blocking mechanism of a circulating fan of the present invention;

[0016] Figure 3 A schematic diagram of a filter screen of a filter screen dust removal and anti-blocking mechanism of a circulating fan of the present invention;

[0017] Figure 4 A schematic diagram of a filter screen of a circulating fan dust removal and anti-blocking mechanism according to the present invention from another perspective;

[0018] Figure 5 It is a schematic diagram of a guide sleeve of a filter screen dust removal and anti-blocking mechanism of a circulating fan of the present invention;

[0019] Figure 6 A filter screen dust removal and anti-blocking mechanism for a circulating fan of the present invention Figure 3 A magnified view of middle;

[0020] Figure 7 A filter screen dust removal and anti-blocking mechanism for a circulating fan of the present invention Figure 4 Enlarged view of middle B;

[0021] Figure 8The present invention is a schematic diagram of the top cap of a filter dust removal and anti-blocking mechanism of a circulating fan.

[0022] In the figure: 1. circulating fan; 2. filter screen; 3. large gear; 4. servo motor; 5. fixing frame; 6. cover; 7. shell frame; 8. cleaning brush cylinder; 9. extension frame; 10. cylinder shaft; 11. circulating gear plate; 12. pushing rail; 13. guide sleeve; 14. water spray pipe; 15. propulsion gear; 16. driving shaft; 17. small gear; 18. connecting shaft; 19. large pulley; 20. small pulley; 21. belt; 22. guide sleeve; 23. ladder guide column; 24. reset spring; 25. top cap; 26. connecting seat; 27. opening gear plate; 28. opening gear; 29. ​​side guide wheel; 30. lower guide wheel; 31. guide rail; 32. ball valve; 33. compression spring; 34. extension frame; 35. guide prism; 36. anti-drop cap; 37. rail frame. DETAILED DESCRIPTION

[0023] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0024] like Figure 1-Figure 8 The filter dust removal and anti-blocking mechanism of a circulating fan shown in the figure comprises a circulating fan 1, a filter 2 is slidably installed at the air inlet of the circulating fan 1, the filter 2 is slidably installed, and can complete the processing of the filter 2 without stopping the circulating fan 1 to ensure the continuous circulation of air supply, the filter 2 is inclined, and can facilitate the dust to be washed down, a fixing frame 5 is fixedly installed at the upper edge of the rear end of the circulating fan 1, a connecting shaft 18 is rotatably installed on the upper end of the fixing frame 5, and a propulsion gear 15 is coaxially inlaid on the front end of the connecting shaft 18, and the connecting shaft 18 plays a role in supporting the propulsion gear 15, and a circulating tooth plate 11 is meshed below the propulsion gear 15, and the circulating tooth plate 11 is fixed to the filter 2, and the propulsion gear 15 and the circulating tooth plate 11 play a role in propulsion of the filter 2. The upper end of the fixing frame 5 is provided with a driving member, and the servo motor 4 drives the driving shaft 16 to rotate, so that the rotating driving shaft 16 can drive the propulsion gear 15 on the connecting shaft 18 to rotate slowly through the small gear 17 and the large gear 3, thereby driving the circulating toothed plate 11 meshing with the propulsion gear 15 to move sideways. At this time, the guide sleeve 13 slides on the guide rail 31 to assist the lateral movement of the circulating toothed plate 11, so as to use the lateral movement of the circulating toothed plate 11 to drive the filter screen 2 to move, so that the end of the filter screen 2 that is full of dust is separated from the air inlet of the circulating fan 1, and at the same time, the area of ​​the other end of the filter screen 2 that is not attached with dust moves to the air inlet of the circulating fan 1 to continue to block the dust in the air. The driving member is connected to the connecting shaft 18, and a dust removal member is provided on the upper end of the filter screen 2;

[0025] The driving member includes a driving shaft 16 rotatably mounted on the upper end of the fixing frame 5, the driving shaft 16 is located on the side of the connecting shaft 18, the front end of the driving shaft 16 is coaxially inlaid with a small gear 17, the driving shaft 16 plays a role in bearing the small gear 17, the outer surface of the connecting shaft 18 is coaxially inlaid with a large gear 3, the small gear 17 is meshed with the large gear 3, the small gear 17 and the large gear 3 play a role in driving the connecting shaft 18 to rotate slowly, the rear end of the fixing frame 5 is fixedly mounted with a servo motor 4, the servo motor 4 plays a role in driving the driving shaft 16 to rotate, and the output end of the servo motor 4 is fixed to the driving shaft 16;

[0026] The dust removal part includes two cleaning brush cylinders 8 symmetrically and fittedly mounted on the upper end of the filter 2. The cleaning brush cylinder 8 serves to clean the filter 2. The air inlet of the circulating fan 1 is located between the two cleaning brush cylinders 8, which can prevent water from entering the interior of the circulating fan 1 along the air inlet during cleaning and causing damage to the circulating fan 1. Extension frames 9 are fixedly mounted on both sides of the fixed frame 5. The ends of the two extension frames 9 are rotatably mounted with cylinder shafts 10. The extension frames 9 serve to connect the cylinder shafts 10. The cleaning brush cylinder 8 is fixed to the outer surface of the cylinder shaft 10. The cylinder shaft 10 serves to carry the cleaning brush cylinder 8. The outer side of the cleaning brush cylinder 8 is covered with a cover shell 6, which serves to block water and prevent splashing The cover shell 6 is connected to the extension frame 9, a small pulley 20 is coaxially fixedly installed on the rear end of the cylindrical shaft 10, and a large pulley 19 is coaxially fixedly installed on the outer surface of the driving shaft 16. The small pulley 20 and the large pulley 19 play a role in accelerating the rotation of the cylindrical shaft 10. A belt 21 is connected between the large pulley 19 and the small pulley 20. A shell frame 7 is fixedly installed on the upper end of the cover shell 6, and the belt 21 plays a transmission role. The end of the shell frame 7 is fixed to the extension frame 9, and the shell frame 7 plays a role in fixing the cover shell 6. A water spray pipe 14 is provided on the opposite side of the two cleaning brush barrels 8. The water spray pipe 14 is connected to an external water pipe to supply water, and the water spray pipe 14 is fixed to the extension frame 9.

[0027] A guide sleeve 13 is fixedly installed at the lower end of the circulating gear plate 11, and a guide rail 31 is fitted inside the guide sleeve 13. The guide sleeve 13 and the guide rail 31 play a role in guiding the circulating gear plate 11. The guide rail 31 passes through both sides of the guide sleeve 13, and a rail frame 37 is fixedly installed at the end of the guide rail 31. The rail frame 37 is fixed to the fixed frame 5, and the rail frame 37 plays a role in fixing the guide rail 31.

[0028] A ball valve 32 is fixedly connected to the water spray pipe 14, and the ball valve 32 plays the role of opening and closing the water spray pipe 14. The valve stem end of the ball valve 32 is coaxially inlaid with an opening gear 28, and an opening tooth plate 27 is meshed in front of the opening gear 28. A connecting seat 26 is fixedly installed at the lower front end of the opening tooth plate 27. The connecting seat 26 is elastically connected to the extension frame 9. The connecting seat 26 plays the role of bearing the lower guide wheel 30 and the side guide wheel 29. The lower end of the connecting seat 26 is installed with a lower guide wheel 30, and the side of the connecting seat 26 is installed with a side guide wheel 29. The rear end of the circulating tooth plate 11 is elastically installed with two push rails 12, and the opposite ends of the two push rails 12 are tilted downward. When the filter screen 2 moves, the lower guide wheel 30 rolls in contact with the inclined section of the push rail 12 to drive the opening tooth plate 27 to move upward. At this time, the guide edge The column 35 slides on the extension frame 34 to guide the opening tooth plate 27, so that the upwardly moved opening tooth plate 27 drives the opening gear 28 to rotate, thereby driving the valve stem of the ball valve 32 to rotate, so as to open the ball valve 32, so that the water in the water spray pipe 14 can flow out to fall on the filter 2, and the opposite surfaces of the two push rails 12 are arranged in an inclined surface. When the filter 2 is reset, the inclined surface of the push rail 12 will be in contact with the side guide wheel 29 to roll, so as to drive the push rail 12 to move backward, so that it is misaligned with the lower guide wheel 30, so that when the push rail 12 is reset with the filter 2, the opening tooth plate 27 can remain stationary, that is, to ensure that the ball valve 32 is in a closed state, to avoid the filter 2 When the filter 2 moves toward the air inlet, water flows out and enters the air inlet along the moving filter 2, and the push rail 12 corresponds to the lower guide wheel 30.

[0029] A guide prism 35 is fixedly installed on the upper end of the connecting seat 26, and an extension frame 34 is fixedly installed on the upper end of the extending frame 9. The guide prism 35 penetrates and is slidably installed on the end of the extension frame 34. The guide prism 35 and the extension frame 34 play a role in vertically guiding the connecting seat 26. The upper end of the guide prism 35 is inlaid with an anti-drop cap 36. The anti-drop cap 36 plays a role in limiting the downward movement height of the connecting seat 26. The anti-drop cap 36 fits the upper end of the extension frame 34. A compression spring 33 is wrapped around the outer side of the guide prism 35. When the lower guide wheel 30 loses the push of the driven rail 12, the compression spring 33 will push the opening tooth plate 27 to move the opening tooth plate 27 downward and reset, that is, to close the ball valve 32. The lower end of the compression spring 33 is fixed to the upper end of the connecting seat 26, and the upper end of the compression spring 33 is fixed to the lower end of the extension frame 34.

[0030] Two guide sleeves 22 are symmetrically fixedly installed at the lower end of the pushing rail 12, and a stepped guide column 23 is fitted inside the guide sleeve 22. The stepped guide column 23 extends from the front and rear ends of the guide sleeve 22. The guide sleeve 22 and the stepped guide column 23 guide the pushing rail 12. The front end of the stepped guide column 23 is fixed to the circulating gear plate 11, and the rear end of the stepped guide column 23 is coaxially inlaid with a top cap 25. A return spring 24 is wound around the outer side of the stepped guide column 23, and the top cap 25 supports the return spring 24. The rear end of the return spring 24 is fixed to the top cap 25, and the front end of the return spring 24 is fixed to the guide sleeve 22. The return spring 24 can support the guide sleeve 22 so that the guide sleeve 22 is pressed tightly against the step section of the stepped guide column 23, that is, the backward moving pushing rail 12 is reset to correspond to the lower guide wheel 30.

[0031] When in use, when the filter screen 2 located in the area just above the air inlet of the circulating fan 1 is covered with dust due to the suction of the wind and affects the air supply, the servo motor 4 can be driven to drive the driving shaft 16 to rotate, so that the rotating driving shaft 16 can drive the propulsion gear 15 on the connecting shaft 18 to rotate slowly through the small gear 17 and the large gear 3, thereby driving the circulating gear plate 11 meshing with the propulsion gear 15 to move sideways. At this time, the guide sleeve 13 slides on the guide rail 31 to assist the circulating gear plate 11 moves sideways, so as to use the sideways moving circulating tooth plate 11 to drive the filter screen 2 to move, so that the end of the filter screen 2 with dust attached is separated from the air inlet of the circulating fan 1, and at the same time, the area of ​​the other end of the filter screen 2 without dust attached is moved to the air inlet of the circulating fan 1 to continue to block the dust in the air. When the filter screen 2 moves slowly, the driving shaft 16 will also accelerate the rotation of the cleaning brush cylinder 8 on the cylinder shaft 10 through the action of the large pulley 19 and the small pulley 20, so as to automatically clean the dust attached to the filter screen 2. The dust is cleaned, and the moving circulating toothed plate 11 also drives the pushing rail 12 to move synchronously. At this time, the lower guide wheel 30 rolls in contact with the inclined section of the pushing rail 12 to drive the opening toothed plate 27 to move upward. At this time, the guide prism 35 slides in contact with the extension frame 34 to guide the opening toothed plate 27, so that the upwardly moving opening toothed plate 27 drives the opening gear 28 to rotate, thereby driving the valve stem of the ball valve 32 to rotate, so as to open the ball valve 32, so that the water in the water spray pipe 14 can flow out. It falls on the filter 2 to promote the cleaning brush 8 to clean the dust, so as to clean the dust on the filter 2 by itself. After the other end of the filter 2 is full of dust, the servo motor 4 reverses to drive the filter 2 to reset, so that the cleaned area of ​​the filter 2 can be located at the air inlet of the circulating fan 1 again to block the dust in the air, and at the same time, the other end of the filter 2 is cleaned. This cycle is repeated to complete the processing of the filter 2 without stopping the circulating fan 1 to ensure the continuous circulation of air.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A filter dust removal and anti-blocking mechanism for a circulating fan, comprising a circulating fan, characterized in that: A filter screen is slidably installed at the air inlet of the circulation fan, and the filter screen is inclined. A fixing frame is fixedly installed at the upper edge of the rear end of the circulation fan, and a connecting shaft is rotatably installed on the upper end of the fixing frame. A propulsion gear is coaxially inlaid on the front end of the connecting shaft, and a circulation gear plate is meshed below the propulsion gear. The circulation gear plate is fixed to the filter screen, and a driving rotating part is installed on the upper end of the fixing frame. The driving rotating part is connected to the connecting shaft, and a dust removal part is arranged on the upper end of the filter screen; The driving member includes a driving shaft rotatably mounted on the upper end of the fixed frame, the driving shaft is located on the side of the connecting shaft, a small gear is coaxially inlaid on the front end of the driving shaft, a large gear is coaxially inlaid on the outer surface of the connecting shaft, the small gear is meshed with the large gear, a servo motor is fixedly mounted on the rear end of the fixed frame, and the output end of the servo motor is fixed to the driving shaft; The dust removal part includes two cleaning brush cylinders symmetrically and fittedly mounted on the upper end of the filter screen, the air inlet of the circulating fan is located between the two cleaning brush cylinders, extension frames are fixedly mounted on both sides of the fixed frame, cylinder shafts are rotatably mounted on the ends of the two extension frames, the cleaning brush cylinders are fixed to the outer surface of the cylinder shaft, a cover shell is provided on the outer side of the cleaning brush cylinder, the cover shell is connected to the extension frame, a small pulley is coaxially fixedly mounted on the rear end of the cylinder shaft, a large pulley is coaxially fixedly mounted on the outer surface of the driving shaft, a belt is connected between the large pulley and the small pulley, a shell frame is fixedly mounted on the upper end of the cover shell, the end of the shell frame is fixed to the extension frame, water spray pipes are provided on the opposite sides of the two cleaning brush cylinders, and the water spray pipes are fixed to the extension frame; A guide sleeve is fixedly installed at the lower end of the circulating tooth plate, a guide rail is fitted inside the guide sleeve, the guide rail runs through both sides of the guide sleeve, a rail frame is fixedly installed at the end of the guide rail, and the rail frame is fixed to the fixed frame; A ball valve is fixedly connected to the water spray pipe, and an opening gear is coaxially inlaid on the end of the valve stem of the ball valve. An opening tooth plate is meshed in front of the opening gear, and a connecting seat is fixedly installed on the lower front end of the opening tooth plate. The connecting seat is elastically connected to the extension frame, a lower guide wheel is installed on the lower end of the connecting seat, and a side guide wheel is installed on the side of the connecting seat. Two push rails are elastically installed on the rear end of the circulating tooth plate, and the opposite ends of the two push rails are inclined downward, and the opposite surfaces of the two push rails are inclined, and the push rails correspond to the lower guide wheel.

2. A filter dust removal and anti-blocking mechanism for a circulating fan according to claim 1, characterized in that: A guide prism is fixedly installed on the upper end of the connecting seat, an extension frame is fixedly installed on the upper end of the extending frame, the guide prism passes through and is slidably installed on the end of the extension frame, the upper end of the guide prism is inlaid with an anti-drop cap, the anti-drop cap fits the upper end of the extension frame, a compression spring is wrapped around the outer side of the guide prism, the lower end of the compression spring is fixed to the upper end of the connecting seat, and the upper end of the compression spring is fixed to the lower end of the extension frame.

3. A filter dust removal and anti-blocking mechanism for a circulating fan according to claim 2, characterized in that: Two guide sleeves are symmetrically fixedly installed at the lower end of the push rail, and stepped guide columns are fitted inside the guide sleeves. The stepped guide columns extend through the front and rear ends of the guide sleeves, and the front ends of the stepped guide columns are fixed to the circulating gear plates. The rear ends of the stepped guide columns are coaxially inlaid with top caps, and the outer sides of the stepped guide columns are wound with return springs, the rear ends of the return springs are fixed to the top caps, and the front ends of the return springs are fixed to the guide sleeves.

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