Centrifugal fan filtering spiral cover

Abstract

The utility model provides a centrifugal fan filtering spiral cover which comprises a connecting ring seat, a filtering mechanism is arranged on the right side of the connecting ring seat, the filtering mechanism comprises a fine filtering cylinder, two protruding blocks are fixedly installed at the bottom of the fine filtering cylinder, and the two protruding blocks are fixedly installed on the connecting ring seat. A rotating shaft is rotationally connected between the adjacent sides of the two protruding blocks, and a stepping motor is fixedly installed on the front face of the protruding block located on the front face. Through the design of a stepping motor, a rotating shaft can be driven to rotate on the inner side of a convex block, then a connecting bent rod drives a coarse filter cover to turn downwards, so that the filter surface of the coarse filter cover faces downwards, and through the design of a vibration motor, the coarse filter cover can be driven to integrally vibrate, so that dust and impurities attached to the filter surface of the coarse filter cover are promoted to shake off; the automatic cleaning function is achieved, then the coarse filter cover can be driven to reset through work of the stepping motor, the problem that workers frequently conduct cleaning work is troublesome is solved, and manpower consumption is reduced.

Description

Technical Field

[0001] The utility model relates to a filtering spiral cover for a centrifugal fan, belonging to the technical field of centrifugal fan accessories. Background Technique

[0002] A centrifugal fan is a machine that relies on the input mechanical energy to increase the gas pressure and discharge the gas. It is a driven fluid machine. Centrifugal fans are widely used in ventilation, dust removal and cooling in factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and induced draft in boilers and industrial furnaces, cooling and ventilation in air conditioning equipment and household electrical appliances, drying and selection of grains, air source in wind tunnels and inflation and propulsion of hovercrafts, etc.

[0003] To avoid blockage inside the centrifugal fan, a filter cover needs to be installed at the air inlet end of the centrifugal fan. The existing filter cover does not have the function of automatic cleaning. When used in an environment with a large dust content, the filter cover will be blocked after being used for a period of time, affecting the air inlet efficiency of the centrifugal fan. Therefore, workers need to frequently disassemble and clean the filter cover. Content of the Utility Model

[0004] Based on the above background, the purpose of the utility model is to provide a filtering spiral cover for a centrifugal fan to solve the problems described in the background technique.

[0005] In order to achieve the above utility model purpose, the utility model provides the following technical solutions:

[0006] A filtering spiral cover for a centrifugal fan includes a connecting ring seat. A filtering mechanism is arranged on the right side of the connecting ring seat. The filtering mechanism includes a fine filter cylinder. A convex block is fixedly installed at the bottom of the fine filter cylinder. The number of the convex blocks is set to two. A rotating shaft is rotatably connected between the adjacent sides of the two convex blocks. A stepping motor is fixedly installed on the front of the convex block located in the front. The output shaft of the stepping motor is fixedly connected to the front of the rotating shaft. A connecting bent rod is fixedly installed on the right side of the rotating shaft. One end of the connecting bent rod away from the rotating shaft is fixedly installed with a coarse filter cover. The coarse filter cover is movably connected to the right side of the fine filter cylinder. The center of the right side of the coarse filter cover is detachably connected with a hollow cylinder. A supporting inner rod is fixedly installed on the inner wall of the hollow cylinder. One end of the supporting inner rod away from the inner wall of the hollow cylinder is fixedly installed with a vibration motor.

[0007] Preferably, a battery compartment is fixedly installed on the right side of the hollow cylinder. A movable cover is detachably connected to the right side of the battery compartment. A battery body is arranged in the inner cavity of the battery compartment. The battery body is used to supply power to the vibration motor.

[0008] Preferably, the filtering mechanism further includes an internal thread ring, which is fixedly connected to the right side of the connecting ring seat. An external thread ring is threadedly connected to the right side of the internal thread ring. A handle is fixedly installed on the outer wall of the external thread ring. The fine filter cartridge is fixedly connected to the right side of the external thread ring.

[0009] Preferably, an internal support plate is fixedly installed on the inner wall of the fine filter cartridge. A support leg is detachably connected to the right side of the internal support plate. One end of the support leg away from the internal support plate is fixedly installed with a support seat. A wind speed sensor is fixedly installed on the right side of the support seat.

[0010] Preferably, a circular groove is formed on the side of the internal support plate. A plug-in ring part is movably inserted into the inner wall of the circular groove. A first magnetic attraction block is fixedly installed on the inner wall of the plug-in ring part. The left side of the first magnetic attraction block is magnetically connected to the right side of the internal support plate.

[0011] Preferably, a cross handle is fixedly installed on the right side of the plug-in ring part. An iron ring is fixedly installed on the inner wall of the plug-in ring part. A stainless steel mesh plate is fixedly installed on the inner wall of the iron ring.

[0012] Preferably, a non-woven fabric filter plate is movably connected to the right sides of the iron ring and the stainless steel mesh plate. A limiting arc-shaped clamping part is movably connected to the right side of the non-woven fabric filter plate. A second magnetic attraction block is fixedly installed on the inner wall of the limiting arc-shaped clamping part. The left side of the second magnetic attraction block is movably connected to the right side of the non-woven fabric filter plate.

[0013] Compared with the prior art, the present utility model has the following advantages:

[0014] Through the design of the stepping motor, the rotating shaft can be driven to rotate inside the raised block, and then the coarse filter cover is driven to turn downward through the transmission of the connecting bent rod, so that the filtering surface of the coarse filter cover faces downward. Then, through the design of the vibration motor, the whole coarse filter cover can be driven to vibrate, so as to shake off the dust and impurities attached to the filtering surface of the coarse filter cover, that is, the function of automatic cleaning is realized. Then, through the operation of the stepping motor, the coarse filter cover can be driven to reset, avoiding the problem that it is laborious for workers to clean frequently and reducing the consumption of manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 This is a schematic diagram of the bottom structure of the fine filter cartridge of the present utility model;

[0018] Figure 3 This is a schematic diagram of the disassembled structure of the hollow cylinder of the present utility model;

[0019] Figure 4 This is a schematic diagram of the sectional structure of the fine filter cartridge of the present utility model;

[0020] Figure 5 This is a schematic diagram of the overall exploded structure of the plug-in ring part of the present utility model.

[0021] In the figure: 1. Connecting ring seat; 2. Filter mechanism; 21. Inner threaded ring; 22. Outer threaded ring; 23. Handle; 24. Fine filter cartridge; 25. Protruding block; 251. Rotating shaft; 252. Stepper motor; 253. Connecting bent rod; 254. Coarse filter cover; 255. Hollow cylinder; 256. Supporting inner rod; 257. Vibration motor; 258. Battery compartment; 259. Movable cover; 26. Inner support plate; 261. Support leg; 262. Support seat; 263. Wind speed sensor; 27. Plug-in ring part; 271. First magnetic block; 272. Cross handle; 273. Iron ring; 274. Stainless steel mesh plate; 275. Non-woven fabric filter plate; 276. Limiting arc-shaped clamping part; 277. Second magnetic block. Detailed implementation manners

[0022] The technical solutions of the present utility model will be further specifically described below through specific embodiments in conjunction with the accompanying drawings. It should be understood that the implementation of the present utility model is not limited to the following embodiments, and any form of modification and / or change made to the present utility model will fall within the protection scope of the present utility model.

[0023] In the present utility model, unless otherwise specified, all parts and percentages are in weight units, and the equipment and raw materials used can be purchased from the market or are commonly used in the art. The methods in the following embodiments are conventional methods in the art unless otherwise specified. The components or equipment in the following embodiments are all standard parts or components known to those skilled in the art unless otherwise specified, and their structures and principles can all be known to those skilled in the art through technical manuals or obtained through conventional experimental methods.

[0024] The following will make a detailed description of the embodiments of the present utility model in conjunction with the accompanying drawings. In the following detailed description, for the sake of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present utility model. However, one or more embodiments can also be implemented by those skilled in the art without these specific details.

[0025] As Figures 1-5As shown in the figure, a centrifugal fan filter spiral cover includes a connecting ring seat 1. A filtering mechanism 2 is arranged on the right side of the connecting ring seat 1. The filtering mechanism 2 includes a fine filter cylinder 24. A raised block 25 is fixedly installed at the bottom of the fine filter cylinder 24. The number of the raised blocks 25 is set to two. A rotating shaft 251 is rotatably connected between the adjacent sides of the two raised blocks 25. A stepping motor 252 is fixedly installed on the front of the raised block 25 located in the front. The output shaft of the stepping motor 252 is fixedly connected to the front of the rotating shaft 251. A connecting bent rod 253 is fixedly installed on the right side of the rotating shaft 251. One end of the connecting bent rod 253 away from the rotating shaft 251 is fixedly installed with a coarse filter cover 254. The coarse filter cover 254 is movably connected to the right side of the fine filter cylinder 24. A hollow cylinder 255 is detachably connected to the center of the right side of the coarse filter cover 254. A supporting inner rod 256 is fixedly installed on the inner wall of the hollow cylinder 255. One end of the supporting inner rod 256 away from the inner wall of the hollow cylinder 255 is fixedly installed with a vibration motor 257. By controlling the operation of the stepping motor 252, the rotating shaft 251 can be driven to rotate inside the raised block 25, and then the coarse filter cover 254 can be driven to turn downward through the transmission of the connecting bent rod 253, so that the filter surface of the coarse filter cover 254 faces downward. Then, by controlling the vibration motor 257 to work, the whole coarse filter cover 254 is driven to vibrate, so as to shake off the dust and impurities attached to the filter surface of the coarse filter cover 254, that is, the function of automatic cleaning is realized. Then, the coarse filter cover 254 can be driven to reset through the work of the stepping motor 252.

[0026] In this embodiment, a battery compartment 258 is fixedly installed on the right side of the hollow cylinder 255. A movable cover 259 is detachably connected to the right side of the battery compartment 258. A battery body is arranged in the inner cavity of the battery compartment 258, and the battery body is used to supply power to the vibration motor 257. The filtering mechanism 2 further includes an internal thread ring 21. The internal thread ring 21 is fixedly connected to the right side of the connecting ring seat 1. An external thread ring 22 is threadedly connected to the right side of the internal thread ring 21. A handle 23 is fixedly installed on the outer wall of the external thread ring 22. A fine filter cylinder 24 is fixedly connected to the right side of the external thread ring 22. An inner support plate 26 is fixedly installed on the inner wall of the fine filter cylinder 24. A support leg 261 is detachably connected to the right side of the inner support plate 26. One end of the support leg 261 far from the inner support plate 26 is fixedly installed with a support seat 262. A wind speed sensor 263 is fixedly installed on the right side of the support seat 262. Through the design of the threaded connection between the internal thread ring 21 and the external thread ring 22, it is convenient for the operator to disassemble and maintain the fine filter cylinder 24 as a whole. The movable cover 259 is installed on the side of the battery compartment 258 through bolts. By disassembling the movable cover 259, the battery body inside the battery compartment 258 can be charged accordingly. The support leg 261 is installed on the side of the inner support plate 26 through bolts, and the wind speed sensor 263 can be disassembled and maintained. The model of the wind speed sensor 263 can be selected as KLD8120. The wind speed sensor 263, the stepping motor 252, and the vibration motor 257 are all electrically connected to an external controller. The wind speed sensor 263 can feedback the wind speed data to the external controller. If the wind speed is lower than the preset value, it indicates that the coarse filter cover 254 is severely blocked. Then, the external controller controls the stepping motor 252 and the vibration motor 257 to work for self-cleaning.

[0027] In this embodiment, a circular groove is formed on the side surface of the inner support plate 26. An insertion ring member 27 is movably inserted into the inner wall of the circular groove. A first magnetic attraction block 271 is fixedly installed on the inner wall of the insertion ring member 27. The left side of the first magnetic attraction block 271 is magnetically connected to the right side of the inner support plate 26. A cross handle 272 is fixedly installed on the right side of the insertion ring member 27. An iron ring 273 is fixedly installed on the inner wall of the insertion ring member 27. A stainless steel mesh plate 274 is fixedly installed on the inner wall of the iron ring 273. A non-woven fabric filter plate 275 is movably connected to the right sides of the iron ring 273 and the stainless steel mesh plate 274. A limiting arc-shaped clamping member 276 is movably connected to the right side of the non-woven fabric filter plate 275. A second magnetic attraction block 277 is fixedly installed on the inner wall of the limiting arc-shaped clamping member 276. The left side of the second magnetic attraction block 277 is movably connected to the right side of the non-woven fabric filter plate 275. If fine filtration treatment is required, insert the insertion ring member 27 into the side surface of the inner support plate 26. Through the design of the first magnetic attraction block 271, magnetically fix the insertion ring member 27, and then fine filtration treatment can be carried out through the non-woven fabric filter plate 275. If the non-woven fabric filter plate 275 needs to be replaced, first pull out the insertion ring member 27 from the inner support plate 26, then remove the limiting arc-shaped clamping member 276 from the side surface of the non-woven fabric filter plate 275, then replace the non-woven fabric filter plate 275 on the side of the stainless steel mesh plate 274, and then reset the limiting arc-shaped clamping member 276. Through the magnetic attraction between the second magnetic attraction block 277 and the iron ring 273, the fixation of the non-woven fabric filter plate 275 is completed. The stainless steel mesh plate 274 is used to carry out a hollow support treatment on the non-woven fabric filter plate 275 to avoid the problem that the non-woven fabric filter plate 275 is extremely easy to be damaged due to pressure.

[0028] The working principle of a centrifugal fan filter spiral cover of the present utility model is as follows: During use, it can be connected to the air inlet end of the centrifugal fan through a bolt from the connecting ring seat 1. Control the operation of the stepping motor 252 to drive the rotating shaft 251 to rotate inside the raised block 25, and then drive the coarse filter cover 254 to turn downward through the transmission of the connecting bent rod 253, so that the filter surface of the coarse filter cover 254 faces downward. Then control the vibration motor 257 to work to drive the whole coarse filter cover 254 to vibrate, so as to shake off the dust and impurities attached to the filter surface of the coarse filter cover 254, that is, the function of automatic cleaning is realized.

[0029] In this article, specific examples are used to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art of this technology, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A centrifugal fan filter spiral cover, comprising a connecting ring seat (1), characterized in that: A filter mechanism (2) is arranged on the right side of the connecting ring seat (1), the filter mechanism (2) comprising a fine filter cartridge (24), a raised block (25) being fixedly mounted on the bottom of the fine filter cartridge (24), the number of the raised blocks (25) being set to two, a rotating shaft (251) being rotatably connected between two adjacent sides of the raised blocks (25), a stepping motor (252) being fixedly mounted on the front side of the raised block (25), the output shaft of the stepping motor (252) being fixedly connected to the front side of the rotating shaft (251), the rotating shaft ( A connecting bent rod (253) is fixedly mounted on the right side of the rotating shaft (251); a coarse filter cover (254) is fixedly mounted on one end of the connecting bent rod (253) away from the rotating shaft (251); the coarse filter cover (254) is movably connected to the right side of the fine filter cartridge (24); a hollow cylinder (255) is detachably connected to the center of the right side of the coarse filter cover (254); a supporting inner rod (256) is fixedly mounted on the inner wall of the hollow cylinder (255); and a vibration motor (257) is fixedly mounted on one end of the supporting inner rod (256) away from the inner wall of the hollow cylinder (255).

2. The centrifugal fan filter spiral cover according to claim 1, characterized in that: A battery compartment (258) is fixedly mounted on the right side of the hollow cylinder (255), a movable cover (259) is detachably connected to the right side of the battery compartment (258), and a battery body is disposed in the inner cavity of the battery compartment (258), the battery body being used to supply power to the vibration motor (257).

3. The centrifugal fan filter spiral cover according to claim 1, characterized in that: The filtering mechanism (2) further comprises an internal threaded ring (21), the internal threaded ring (21) being fixedly connected to the right side of the connecting ring seat (1), the right side of the internal threaded ring (21) being threadedly connected to an external threaded ring (22), a handle (23) being fixedly mounted on the outer wall of the external threaded ring (22), and the fine filter cartridge (24) being fixedly connected to the right side of the external threaded ring (22).

4. The centrifugal fan filter spiral cover according to claim 3, characterized in that: An inner support plate (26) is fixedly mounted on the inner wall of the fine filter cartridge (24); a support leg (261) is detachably connected to the right side of the inner support plate (26); a support seat (262) is fixedly mounted on one end of the support leg (261) away from the inner support plate (26); and a wind speed sensor (263) is fixedly mounted on the right side of the support seat (262).

5. The centrifugal fan filter spiral cover according to claim 4, characterized in that: A circular groove is provided on the side of the inner support plate (26), a plug-in ring (27) is movably plugged into the inner wall of the circular groove, a first magnetic block (271) is fixedly mounted on the inner wall of the plug-in ring (27), and the left side of the first magnetic block (271) is magnetically connected to the right side of the inner support plate (26).

6. The centrifugal fan filter spiral cover according to claim 5, characterized in that: A cross handle (272) is fixedly mounted on the right side of the plug-in ring (27), an iron ring (273) is fixedly mounted on the inner wall of the plug-in ring (27), and a stainless steel mesh plate (274) is fixedly mounted on the inner wall of the iron ring (273).

7. The centrifugal fan filter spiral cover according to claim 6, characterized in that: The right sides of the iron ring (273) and the stainless steel mesh plate (274) are movably connected to a non-woven filter plate (275); the right side of the non-woven filter plate (275) is movably connected to a limiting arc-shaped clamp (276); a second magnetic block (277) is fixedly mounted on the inner wall of the limiting arc-shaped clamp (276); the left side of the second magnetic block (277) is movably connected to the right side of the non-woven filter plate (275).

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