A fan filter cleaning mechanism

Abstract

The present invention discloses a cleaning mechanism for a fan filter screen, which includes a housing. Inside the housing, there is a fan and a filter screen. An air dust removal mechanism is arranged outside the filter screen. The air dust removal mechanism includes a paddle. One end of the paddle is fixedly connected to a rotating rod. A tightening assembly is arranged on the outer surface of the rotating rod. The outer surface of the rotating rod is rotatably connected through the inside of the filter screen. A connecting sleeve is sleeved on one end of the rotating rod. A cleaning brush is arranged outside the connecting sleeve. The cleaning brush is connected to the connecting sleeve through a connecting component. It relates to the technical field of air dust removal for fan filter screens. When the existing method uses reverse blowing to clean the dust attached to the fan filter screen, the cleaning effect is poor, and the cleaned dust scatters and pollutes, resulting in an increased workload for subsequent dust treatment. In addition, the reverse blowing device will cause flow around the normal air outlet, and the dust cleaning can only be carried out when the fan is working, with relatively large limitations.

Description

Technical Field

[0001] The invention relates to the technical field of fan filter dust removal, in particular to a fan filter cleaning mechanism. Background Art

[0002] When the fan is in the suction state for a long time, it will attract fine debris such as dust in the air and make it adhere to the fan filter. Therefore, the fan filter needs to be cleaned regularly. After searching, in the invention patent with publication number CN114623103A, a cooling fan device with a filter dust removal function is disclosed, which aims to provide a cooling fan device with a filter dust removal function that can not only pass the back-blowing air filter to extend the time limit for disassembling and cleaning the fan filter; but also will not blow the attachments on the machine filter into the radiator chassis, thereby causing the problem of contamination of components in the radiator chassis.

[0003] Although the device has the above advantages, it still has the following defects in actual use:

[0004] 1) First, the device uses the return air to blow back the filter. Both the inlet and outlet air pass through the filter, which will form a wind collision, resulting in a poor dust cleaning effect. Even if the dust can be cleaned, the reverse wind will blow the dust to the outside and scatter it, increasing the workload of subsequent dust cleaning;

[0005] 2) Secondly, the device is equipped with many devices at the air outlet. Even when the wind is not blown in the opposite direction, there is still a flow around the wind, which affects the wind direction and wind speed of the blown wind.

[0006] 3) Furthermore, the device can only clean the dust on the filter screen when the fan is working, resulting in great limitations in the dust cleaning work.

[0007] Therefore, it is necessary to solve the above problems. Summary of the invention

[0008] In view of the deficiencies in the prior art, the present invention provides a fan filter cleaning mechanism, which solves the problems that when the prior art method of cleaning dust attached to the fan filter by reverse blowing has a poor cleaning effect, the cleaned dust scatters and pollutes, resulting in an increase in the workload of subsequent dust processing, the reverse blowing device will cause bypass flow to the normal air outlet, and the dust cleaning can only be performed when the fan is working, which solves the problems of great limitations.

[0009] To achieve the above objectives, the present invention is realized through the following technical solutions: A cleaning mechanism for a fan filter screen, including a housing, a fan and a filter screen are arranged inside the housing, a dust removal mechanism is arranged outside the filter screen, the dust removal mechanism includes a paddle, one end of the paddle is fixedly connected with a rotating rod, a tightening component is arranged on the outer surface of the rotating rod, the outer surface of the rotating rod is rotatably connected through the inside of the filter screen, a connecting sleeve is sleeved at one end of the rotating rod, a cleaning brush is arranged outside the connecting sleeve, the cleaning brush is connected with the connecting sleeve through a connecting component, a bearing is fixedly connected to the outer surface of the rotating rod, a support plate is fixedly connected through the outer surface of the bearing, the outer surface of the support plate is fixedly connected with the inner wall of the housing, a sealing ring is movably connected to the outer surface of the connecting sleeve, the sealing ring is sleeved on the outer surface of the rotating rod, the outer surface of the sealing ring is movably embedded with the outer surface of the filter screen, a connecting bolt is movably connected through the inside of the connecting sleeve, the outer surface of the connecting bolt is movably connected through the inside of the rotating rod, a nut is threadedly connected to the outer surface of the connecting bolt, and the outer surface of the nut is movably connected to the outer surface of the connecting sleeve.

[0010] Preferably, the connecting component includes a connecting groove and a connecting strip. The connecting groove is opened at the inner wall of the connecting sleeve. The outer surface of the connecting strip is movably connected to the outer surfaces of the cleaning brush and the connecting sleeve respectively. A fixing bolt is clamped on the inner surface of the connecting groove. The outer surface of the fixing bolt is movably connected through the inside of the connecting sleeve. The outer surface of the connecting bolt is threadedly connected through the inside of the connecting strip.

[0011] Preferably, a groove is opened on the outer surface of the connecting strip, and two adhered magic tapes are arranged on the inner surface of the groove. The outer surface of one side of the magic tape is fixedly connected to the inner surface of the groove, and the outer surface of the magic tape on one side is fixedly connected to the outer surface of the cleaning brush.

[0012] Preferably, the tightening component includes a servo motor. The outer surface of the servo motor is fixedly connected to the inner wall of the housing. The output end of the servo motor is fixedly connected with a lead screw through a coupling. One end of the lead screw is rotatably connected with a support sleeve. The outer surface of the support sleeve is fixedly connected to the inner wall of the housing.

[0013] Preferably, a screw block is threadedly connected through the outer surface of the lead screw. The outer surface of the screw block is rotatably connected with a connecting plate. One side of the outer surface of the connecting plate is rotatably connected with a braking block. The outer surface of the braking block is movably connected to the outer surface of the rotating rod. A guiding unit is arranged outside the braking block.

[0014] Preferably, the guiding unit includes an embedding groove. The embedding groove is opened on the outer surface of the braking block. A through sliding groove is opened on the inner surface of the embedding groove.

[0015] Preferably, an arc plate is movably connected to the inner surface of the groove, the outer surface of the arc plate is movably connected to the outer surface of the rotating rod, a sliding rod is fixedly connected to the outer surface of the arc plate, and the outer surface of the sliding rod is slidably connected to the inner surface of the chute.

[0016] Preferably, one end of the sliding rod is fixedly connected with a rotating sleeve, the inner wall of the rotating sleeve is rotatably connected with the outer surface of the lead screw, the outer surface of the rotating sleeve is movably connected with a clamping plate, and the inner part of the clamping plate is fixedly connected through the outer surface of the lead screw.

[0017] Beneficial effects

[0018] The present invention provides a cleaning mechanism for a fan filter. Compared with the prior art, the following beneficial effects are achieved:

[0019] (1) By setting up a dust removal mechanism, when the fan is working, the outside air flow enters the inside of the housing through the filter screen, and the blades rotate by contacting the blades, so that the rotating rod drives the cleaning brush to rotate, and the cleaning brush rotates around the surface of the filter screen, thereby cleaning the dust, which can avoid the scattering of dust, increasing the subsequent processing workload, and the problem that the cleaning cannot be carried out when the fan is working.

[0020] (2) By setting up a connection component, due to the detachable connection of the connecting sleeve, and the connection of the cleaning brush to the connecting strip through Velcro, and the connection of the connecting strip to the connecting sleeve through a fixing bolt, the cleaning brush is convenient to disassemble, so that it is convenient to replace the cleaning brush after wear.

[0021] (3) By setting up a braking component, the servo motor drives the lead screw to rotate, so that the screw block drives the brake block to move through the connecting plate, and through the contact between the brake block and the rotating rod, the blades and the rotating rod cannot rotate, so as to avoid the continuous rotation of the rotating rod driving the cleaning brush, resulting in excessive and unnecessary wear of the cleaning brush, thereby reducing cost loss.

[0022] (4) By setting up a guiding unit, the clamping plate and the arc plate enhance the stability of the rotating sleeve, so that the stability of the sliding rod is enhanced, thereby enhancing the stability of the movement of the brake block, and facilitating the guiding of the sliding rod to the brake block, so that the brake block can stably brake the rotating rod, so as to avoid excessive wear of the cleaning brush. Description of the drawings

[0023] Figure 1 It is a cross-sectional view of the internal structure of the present invention;

[0024] Figure 2 It is a three-dimensional view of the external structure of the rotating rod of the present invention;

[0025] Figure 3 It is a split view of the external structure of the connecting sleeve of the present invention;

[0026] Figure 4 It is a three-dimensional view of the external structure of the lead screw of the present invention;

[0027] Figure 5 This is an exploded view of the internal structure of the brake block of the present invention.

[0028] In the figure: 1. Housing; 2. Fan; 3. Filter screen; 4. Blade; 5. Rotating rod; 6. Braking assembly; 61. Servo motor; 62. Lead screw; 63. Support sleeve; 64. Screw block; 65. Connecting plate; 66. Brake block; 67. Guide unit; 671. Embedded groove; 672. Sliding groove; 673. Arc plate; 674. Slide bar; 675. Rotating sleeve; 676. Clamping plate; 7. Connecting sleeve; 8. Cleaning brush; 9. Connecting assembly; 91. Connecting groove; 92. Connecting bar; 93. Fixed bolt; 94. Groove; 95. Magic tape; 10. Bearing; 11. Support plate; 12. Sealing ring; 13. Connecting bolt; 14. Nut. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1-5 , the present invention provides a technical solution: a cleaning mechanism for the filter screen of a fan,

[0031] Embodiment 1:

[0032] Refer to the attached drawings of the specification Figure 1 , attached Figure 2 , attached Figure 3, including a housing 1, a fan 2 and a filter screen 3 are arranged inside the housing 1, a dust removal mechanism is arranged outside the filter screen 3, the dust removal mechanism includes a paddle 4, and the paddle 4 is made of a material with light weight, compressive resistance and corrosion resistance, so as to be convenient for long-term use and rotation. One end of the paddle 4 is fixedly connected to a rotating rod 5, a tightening assembly 6 is arranged on the outer surface of the rotating rod 5, the outer surface of the rotating rod 5 is rotatably connected through the inside of the filter screen 3, a connecting sleeve 7 is sleeved on one end of the rotating rod 5, a cleaning brush 8 is arranged outside the connecting sleeve 7, and the cleaning brush 8 is made of a material with good cleaning effect, corrosion resistance and good softness. The cleaning brush 8 is connected to the connecting sleeve 7 through a connecting assembly 9. A bearing 10 is fixedly connected to the outer surface of the rotating rod 5, and a support plate 11 is fixedly connected through the outer surface of the bearing 10. The bearing 10 and the support plate 11 can enhance the stability of the rotating rod 5 and facilitate the rotation of the rotating rod 5. The outer surface of the support plate 11 is fixedly connected to the inner wall of the housing 1. A sealing ring 12 is movably connected to the outer surface of the connecting sleeve 7. The sealing ring 12 is made of a material with compressive resistance, wear resistance and good sealing performance, and can seal the connection between the rotating rod 5 and the filter screen 3. The sealing ring 12 is sleeved on the outer surface of the rotating rod 5, and the outer surface of the sealing ring 12 is movably connected to the outer surface of the filter screen 3 in an embedded manner. A connecting bolt 13 is movably connected through the inside of the connecting sleeve 7. The outer surface of the connecting bolt 13 is movably connected through the inside of the rotating rod 5. A nut 14 is threadedly connected to the outer surface of the connecting bolt 13. The connecting bolt 13 and the nut 14 are convenient for enhancing the stability of the connecting sleeve 7 and disassembly. The outer surface of the nut 14 is movably connected to the outer surface of the connecting sleeve 7. By arranging the dust removal mechanism, when the fan 2 is working, the outside air flow enters the inside of the housing 1 through the filter screen 3, and the paddle 4 rotates by contacting the paddle 4, so that the rotating rod 5 drives the cleaning brush 8 to rotate, and the cleaning brush 8 rotates around the surface of the filter screen 3, thereby cleaning the dust, which can avoid the scattering of dust, increase the subsequent processing workload, and the problem that it cannot be cleaned when the fan is working.

[0033] Embodiment 2:

[0034] On the basis of Embodiment 1, refer to the attached drawings of the specification Figure 3, the connecting component 9 includes a connecting groove 91 and a connecting bar 92. The connecting groove 91 is opened on the inner wall of the connecting sleeve 7. The outer surfaces of the connecting bar 92 are movably connected to the outer surfaces of the cleaning brush 8 and the connecting sleeve 7 respectively. A fixing bolt 93 is clamped on the inner surface of the connecting groove 91. The outer surface of the fixing bolt 93 is movably connected through the interior of the connecting sleeve 7. The outer surface of the connecting bolt 13 is threadedly connected through the interior of the connecting bar 92. A groove 94 is opened on the outer surface of the connecting bar 92. Two adhered magic tapes 95 are arranged on the inner surface of the groove 94. The magic tapes 95 facilitate the disassembly and replacement of the cleaning brush 8 and can provide better connection stability. The outer surface of one side of the magic tape 95 is fixedly connected to the inner surface of the groove 94, and the outer surface of one side of the magic tape 95 is fixedly connected to the outer surface of the cleaning brush 8. By setting the connecting component 9, due to the detachable connecting sleeve 7, the connection of the cleaning brush 8 to the connecting bar 92 through the magic tape 95, and the connection of the connecting bar 92 to the connecting sleeve 7 through the fixing bolt 93, the cleaning brush 8 is convenient to disassemble, thus facilitating the replacement of the cleaning brush 8 after wear.

[0035] Embodiment Three:

[0036] On the basis of Embodiment Two, referring to the attached drawings of the specification Figure 4 , the braking component 6 includes a servo motor 61. The servo motor 61 is electrically connected to an external control circuit and can also be replaced by a crank extending outside the housing 1 for manual driving. The outer surface of the servo motor 61 is fixedly connected to the inner wall of the housing 1. The output end of the servo motor 61 is fixedly connected with a lead screw 62 through a coupling. The thread directions on both sides of the surface of the lead screw 62 are arranged in opposite directions. One end of the lead screw 62 is rotatably connected to a support sleeve 63. The support sleeve 63 can support the lead screw 62 and enhance the stability of the rotation of the lead screw 62. The outer surface of the support sleeve 63 is fixedly connected to the inner wall of the housing 1. The outer surface of the lead screw 62 is threadedly connected through a screw block 64. The outer surface of the screw block 64 is rotatably connected to a connecting plate 65. Rotating connectors are arranged at both ends of the connecting plate 65. The rotating connector includes a frame body and a horizontal shaft. The horizontal shaft is rotatably connected through the interior of the connecting plate 65. One side of the outer surface of the connecting plate 65 is rotatably connected to a braking block 66. The braking block 66 is made of a material with good wear resistance, corrosion resistance, compressive resistance and friction. The outer surface of the braking block 66 is movably connected to the outer surface of the rotating rod 5. A guiding unit 67 is arranged outside the braking block 66. By setting the braking component 6, the servo motor 61 drives the lead screw 62 to rotate, so that the screw block 64 drives the braking block 66 to move through the connecting plate 65, and through the contact between the braking block 66 and the rotating rod 5, the paddle 4 and the rotating rod 5 cannot rotate, so as to prevent the rotating rod 5 from driving the cleaning brush 8 to rotate continuously, resulting in excessive and unnecessary wear of the cleaning brush 8, thereby reducing cost losses.

[0037] Embodiment Four:

[0038] On the basis of Embodiment Three, referring to the attached drawings of the specification Figure 5, the guiding unit 67 includes a slot 671 opened on the outer surface of the brake block 66. A through chute 672 is opened on the inner surface of the slot 671. An arc plate 673 is movably connected to the inner surface of the slot 671. The arc plate 673 is made of a material with compressive resistance and wear resistance and has a size smaller than that of the brake block 66. The outer surface of the arc plate 673 is movably connected to the outer surface of the rotating rod 5. A sliding rod 674 is fixedly connected to the outer surface of the arc plate 673. The sliding rod 674 is made of a material with compressive resistance and wear resistance. The outer surface of the sliding rod 674 is slidably connected to the inner surface of the chute 672. One end of the sliding rod 674 is fixedly connected to a rotating sleeve 675. The rotating sleeve 675 is made of a material with compressive resistance and wear resistance. The inner wall of the rotating sleeve 675 is rotatably connected to the outer surface of the lead screw 62. The outer surface of the rotating sleeve 675 is movably connected to a clamping plate 676. The clamping plate 676 is made of a material with compressive resistance and wear resistance. The inside of the clamping plate 676 is fixedly connected through the outer surface of the lead screw 62. By providing the guiding unit 67, the clamping plate 676 and the arc plate 673 enhance the stability of the rotating sleeve 675, so that the stability of the sliding rod 674 is enhanced, thereby enhancing the stability of the movement of the brake block 66, and facilitating the guiding of the brake block 66 by the sliding rod 674, so that the brake block 66 can stably brake the rotating rod 5 to avoid excessive wear of the cleaning brush 8.

[0039] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0040] During operation, first, the cleaning brush 8 is fixed to the connecting bar 92 through the connection between the magic tapes 95. Then, one end of the connecting bar 92 is attached to the surface of the connecting sleeve 7 and fixed to it through the fixing bolt 93. Next, the connecting sleeve 7 is sleeved on the outer end of the rotating rod 5, and then the connecting sleeve 7 is fixed to the rotating rod 5 through the clamping of the connecting bolt 13 and the nut 14. When the fan 2 rotates to extract external air, it forms an air flow and enters the inside of the housing 1 through the filter screen 3 and is blown out from one side of the housing 1. During the flow of the air flow inside the housing 1, it contacts the blades 4, thereby driving the blades 4 to rotate, so that the rotating rod 5 drives the cleaning brush 8 to rotate through the connecting sleeve 7 and the connecting bar 92. The cleaning brush 8 sweeps the dust attached to the surface of the filter screen 3 to below the filter screen 3, and then the swept dust is collected uniformly. During the process when cleaning is not required, control the servo motor 61 to rotate. Through the threaded connection between the lead screw 62 and the nut block 64, the nut block 64 moves along the lead screw 62 and drives the connecting plate 65 to move synchronously, so that the brake block 66 moves along the sliding rod 674. Through the contact between the brake block 66 and the rotating rod 5, the rotating rod 5 is braked to avoid excessive unnecessary wear of the cleaning brush 8. On the contrary, when the filter screen 3 needs to be cleaned, control the servo motor 61 to reverse, so that the brake block 66 disengages from braking the rotating rod 5, and then the rotating rod 5 can rotate, thereby driving the cleaning brush 8 to rotate to clean the dust. When replacing the cleaning brush 8, disassemble the connecting sleeve 7 from the rotating rod 5, then disassemble the cleaning brush 8, and reinstall a new cleaning brush 8.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cleaning mechanism for a fan filter screen, comprising a housing (1), wherein a fan (2) and a filter screen (3) are arranged inside the housing (1), and it is characterized in that: An air dust removal mechanism is provided outside the filter screen (3). The air dust removal mechanism includes a paddle (4). One end of the paddle (4) is fixedly connected to a rotating rod (5). A tightening assembly (6) is arranged on the outer surface of the rotating rod (5). The outer surface of the rotating rod (5) is rotatably connected through the inside of the filter screen (3). A connecting sleeve (7) is sleeved on one end of the rotating rod (5). A cleaning brush (8) is arranged outside the connecting sleeve (7). The cleaning brush (8) is connected to the connecting sleeve (7) through a connecting component (9). A bearing (10) is fixedly connected to the outer surface of the rotating rod (5). A support plate (11) is fixedly connected through the outer surface of the bearing (10). The outer surface of the support plate (11) is fixedly connected to the inner wall of the housing (1). A sealing ring (12) is movably connected to the outer surface of the connecting sleeve (7). The sealing ring (12) is sleeved on the outer surface of the rotating rod (5). The outer surface of the sealing ring (12) is movably connected by embedding with the outer surface of the filter screen (3). A connecting bolt (13) is movably connected through the inside of the connecting sleeve (7). The outer surface of the connecting bolt (13) is movably connected through the inside of the rotating rod (5). A nut (14) is threadedly connected to the outer surface of the connecting bolt (13). The outer surface of the nut (14) is movably connected to the outer surface of the connecting sleeve (7); The connecting component (9) includes a connecting groove (91) and a connecting strip (92). The connecting groove (91) is opened at the inner wall of the connecting sleeve (7). The outer surface of the connecting strip (92) is movably connected to the outer surfaces of the cleaning brush (8) and the connecting sleeve (7) respectively. A fixing bolt (93) is clamped on the inner surface of the connecting groove (91). The outer surface of the fixing bolt (93) is movably connected through the inside of the connecting sleeve (7). The outer surface of the connecting bolt (13) is threadedly connected through the inside of the connecting strip (92); A groove (94) is opened on the outer surface of the connecting strip (92). Two adhered magic tapes (95) are arranged on the inner surface of the groove (94). The outer surface of one side of the magic tape (95) is fixedly connected to the inner surface of the groove (94). The outer surface of the magic tape (95) on one side is fixedly connected to the outer surface of the cleaning brush (8); The tightening assembly (6) includes a servo motor (61). The outer surface of the servo motor (61) is fixedly connected to the inner wall of the housing (1). The output end of the servo motor (61) is fixedly connected to a lead screw (62) through a coupling. One end of the lead screw (62) is rotatably connected to a support sleeve (63). The outer surface of the support sleeve (63) is fixedly connected to the inner wall of the housing (1); A screw block (64) is threadedly connected through the outer surface of the lead screw (62). A connecting plate (65) is rotatably connected to the outer surface of the screw block (64). One side of the outer surface of the connecting plate (65) is rotatably connected to a braking block (66). The outer surface of the braking block (66) is movably connected to the outer surface of the rotating rod (5). A guiding unit (67) is arranged outside the braking block (66); The guiding unit (67) includes a groove (671) opened on the outer surface of the brake block (66), and a through chute (672) is opened on the inner surface of the groove (671).

2. The cleaning mechanism for the fan filter screen according to claim 1, wherein: An arc plate (673) is movably connected to the inner surface of the groove (671). The outer surface of the arc plate (673) is movably connected to the outer surface of the rotating rod (5). A sliding rod (674) is fixedly connected to the outer surface of the arc plate (673), and the outer surface of the sliding rod (674) is slidably connected to the inner surface of the chute (672).

3. The cleaning mechanism for the fan filter screen according to claim 2, characterized in that: One end of the sliding rod (674) is fixedly connected to a rotating sleeve (675). The inner wall of the rotating sleeve (675) is rotatably connected to the outer surface of the lead screw (62). A clamping plate (676) is movably connected to the outer surface of the rotating sleeve (675), and the lead screw (62) penetrates and is fixedly connected to the inside of the clamping plate (676).

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