Dustproof centrifugal fan

Abstract

The utility model relates to the technical field of centrifugal fans, and discloses a dustproof centrifugal fan which comprises a fan body, an air inlet is formed in one side of the fan body, an air outlet pipe is arranged on the fan body, an air inlet pipe is arranged at the air inlet, a dustproof assembly is arranged in the air inlet pipe and comprises a first dustproof net and a second dustproof net, and the first dustproof net and the second dustproof net are arranged on the fan body. A plurality of inserting grooves are formed in the air inlet pipe, a first dustproof net and a second dustproof net are inserted into the inserting grooves correspondingly, a dust removal assembly is arranged on one side of the dustproof assembly and comprises a double-face dust removal brush and a single-face dust removal brush, a first lead screw is rotationally arranged on one side of the first dustproof net, and the single-face dust removal brush is inserted into the first lead screw in a threaded mode. According to the dust removal device, the dust removal assembly cleans and dredges dust blocking the surface of the dust prevention assembly, the working efficiency is guaranteed, and the dust prevention effect is enhanced through the double dust prevention nets.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal fans, in particular to a dust-proof centrifugal fan. Background Art

[0002] Centrifugal fan is a common air handling equipment, mainly used for conveying gas, exhaust or pressurizing. Its working principle is to use the centrifugal force generated by the rotation of the power machinery to project the gas through the center line of the rotating parts of the machine into the centrifugal field, and due to the centrifugal force in the centrifugal field, the gas is pressurized and finally transported to the required place. It is widely used in industrial production, building ventilation, air conditioning, environmental protection and other fields.

[0003] During the use of centrifugal fans, dust will enter the inside of the device. Usually, dust screens are used to block dust and protect the device. However, long-term use of dust screens will cause a lot of dust to adhere to the surface of the dust screens, thus affecting the use effect of the centrifugal fan. The existing dust screens are not convenient to clean during use and need to be stopped and cleaned manually, which reduces work efficiency. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] The technical problem to be solved by the utility model is to overcome the defects that the dustproof net is easy to be blocked and inconvenient to clean, and to provide a dustproof centrifugal fan.

[0006] (II) Technical solution

[0007] To solve the above technical problems, the utility model provides a technical solution as follows: a dust-proof centrifugal fan, comprising a fan body, an air inlet is provided on one side of the fan body, an air outlet is provided on the fan body, an air inlet duct is provided at the air inlet position, a dust-proof component is provided in the air inlet duct, the dust-proof component comprises a dust-proof net 1 and a dust-proof net 2, a plurality of slots are provided in the air inlet duct, and a dust-proof net 1 and a dust-proof net 2 are respectively inserted in the slots, a dust-proof component is provided on one side of the dust-proof component, the dust-proof component comprises a double-sided cleaning brush and a single-sided cleaning brush, a screw rod 1 is provided for rotating horizontally on one side of the dust-proof net 1, a single-sided cleaning brush is threadedly inserted on the screw rod 1, a screw rod 2 is provided for rotating vertically between the dust-proof net 1 and the dust-proof net 2, and a double-sided cleaning brush is threadedly inserted on the screw rod 2.

[0008] As an improvement: Motor 1 and Motor 2 are respectively provided on the air inlet duct, the output end of Motor 1 is connected to Screw Rod 1, and the output end of Motor 2 is connected to Screw Rod 2. Both Motor 1 and Motor 2 are forward and reverse motor types used to drive Screw Rod 1 and Screw Rod 2 to rotate, thereby realizing the movement of the single-sided cleaning brush and the double-sided cleaning brush.

[0009] As an improvement: the second dustproof net is close to the air inlet, the mesh size of the first dustproof net is larger than the mesh size of the second dustproof net, and the setting of the double dustproof net can filter out most of the dust and prevent dust from entering the inside of the device and affecting the device.

[0010] As an improvement: limit rod 1 is symmetrically provided on both sides of screw rod 1, limit rod 2 is provided on both sides of screw rod 2, the single-sided cleaning brush and double-sided cleaning brush are slidably provided on limit rod 1 and limit rod 2 respectively, limit rod 1 and limit rod 2 limit the movement trajectory of the single-sided cleaning brush and the double-sided cleaning brush, so that they move along screw rod 1 and screw rod 2.

[0011] As an improvement: the bottom surface of the air inlet duct is provided with ash discharge ports on both sides of dustproof net one and on the side of dustproof net two close to screw rod two, and plug-ins are provided on both sides of the air inlet duct. An ash box is slidably provided on the plug-in connector, which is used to collect the cleaned dust for subsequent centralized processing.

[0012] As an improvement: a socket is provided on the upper surface of the air inlet pipe relative to the slot, and fixed plates are rotatably provided on both sides of the socket. The fixed plates have built-in magnets, and the upper surface of the dustproof net is an iron plate that can be adsorbed by the magnet to fix the dustproof net.

[0013] (III) Beneficial effects

[0014] The advantages of the utility model compared with the prior art are:

[0015] 1. A dust cleaning component is provided in the air inlet duct. The single-sided dust cleaning brush and the double-sided dust cleaning brush are located on one side of the dust screen 1 and the second side of the dust screen respectively. The front and back sides of the dust screen 1 and one side of the dust screen 2 are cleaned under the action of the motor 1 and the motor 2 to avoid the blockage of the dust-proof component and ensure the working efficiency of the centrifugal fan.

[0016] 2. The device is equipped with a double dust-proof net, which can filter out dust multiple times, with a good dust-proof effect. The dust-proof net is easy to disassemble and install, making it easy to thoroughly clean the dust-proof components. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic structural diagram of a dust-proof centrifugal fan.

[0018] Figure 2 The utility model is a schematic diagram of the fan body structure of a dust-proof centrifugal fan.

[0019] Figure 3 It is a schematic diagram of the enlarged structure of a part A of a dust-proof centrifugal fan of the utility model.

[0020] Figure 4 It is a schematic diagram of the enlarged structure of a part B of a dust-proof centrifugal fan of the utility model.

[0021] Figure 5 The utility model is a schematic diagram of the structure of a fan body of a dust-proof centrifugal fan when viewed from above.

[0022] As shown in the figure: 1. Fan body; 2. Air inlet; 3. Air outlet; 4. Air inlet; 5. Dust screen 1; 6. Dust screen 2; 7. Slot; 8. Double-sided cleaning brush; 9. Single-sided cleaning brush; 10. Screw rod 1; 11. Screw rod 2; 12. Motor 1; 13. Motor 2; 14. Limit rod 1; 15. Limit rod 2; 16. Ash discharge port; 17. Connector; 18. Ash collection box; 19. Socket; 20. Fixing plate. DETAILED DESCRIPTION

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings, wherein the same components are indicated by the same reference numerals.

[0024] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0025] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0026] Embodiment 1

[0027] Combined with Figure 1 and Figure 2 As shown, a dust-proof centrifugal fan comprises a fan body 1, an air inlet 2 is provided on one side of the fan body 1, an air outlet duct 3 is provided on the fan body 1, an air inlet duct 4 is provided at the position of the air inlet 2, a dust-proof component is provided in the air inlet duct 4, the dust-proof component comprises a dust-proof net 1 5 and a dust-proof net 2 6, a plurality of slots 7 are provided in the air inlet duct 4, and the slots 7 are respectively plugged with dust-proof nets 1 5 and dust-proof nets 2 6, a cleaning component is provided on one side of the dust-proof component, the cleaning component comprises a double-sided cleaning brush 8 and a single-sided cleaning brush 9, a screw rod 10 is provided for rotation in the horizontal direction on one side of the dust-proof net 1 5, a single-sided cleaning brush 9 is threadedly inserted on the screw rod 10, a screw rod 2 11 is provided for rotation in the vertical direction between the dust-proof net 1 5 and the dust-proof net 2 6, and a double-sided cleaning brush 8 is threadedly inserted on the screw rod 2 11.

[0028] Through the above structure, screw rod 10 and screw rod 2 11 rotate, and the single-sided cleaning brush 9 and the double-sided cleaning brush 8 cooperate with them to realize horizontal and vertical movements, so as to clean the dust attached to the surface of dustproof net 1 5 and dustproof net 2 6, so as to prevent dust from clogging the dustproof components and affecting the working efficiency and effect of the fan body 1.

[0029] Combined with Figure 2 As shown, the air inlet pipe 4 is respectively provided with a motor 12 and a motor 2 13, the output end of the motor 12 is connected to the screw 10, the output end of the motor 2 13 is connected to the screw 2 11, the dustproof net 2 6 is close to the side of the air inlet 2, and the mesh size of the dustproof net 1 5 is larger than the mesh size of the dustproof net 2 6.

[0030] Through the above structure, motor 1 12 and motor 2 13 are both forward and reverse motor types used to drive screw 10 and screw 2 11 to rotate, thereby realizing the movement of the single-sided cleaning brush 9 and the double-sided cleaning brush 8. The setting of the double dustproof net can filter out most of the dust and prevent dust from entering the interior of the device and affecting the device.

[0031] Embodiment 2

[0032] Based on the first embodiment, combined with the attached Figures 3 to 5 As shown, limit rods 14 are symmetrically provided on both sides of the screw rod 10, limit rods 15 are provided on both sides of the screw rod 11, the single-sided cleaning brush 9 and the double-sided cleaning brush 8 are slidably provided on the limit rods 14 and the limit rods 15 respectively, and dust discharge ports 16 are respectively provided on the bottom surfaces of the air inlet duct 4 on both sides of the dustproof net 15 and on the side of the dustproof net 2 6 close to the screw rod 11, plug-in connectors 17 are respectively provided on both sides of the air inlet duct 4, and a dust collecting box 18 is slidably provided on the plug-in connector 17, and a socket 19 is provided on the upper surface of the air inlet duct 4 at a position relative to the slot 7, and fixing plates 20 are rotatably provided on both sides of the socket 19, and the fixing plates 20 have built-in magnets.

[0033] Through the above structure, limit rod 1 14 and limit rod 2 15 limit the movement trajectory of the single-sided cleaning brush 9 and the double-sided cleaning brush 8, so that they move along screw rod 10 and screw rod 2 11. The dust collection box 18 is used to collect the cleaned dust to facilitate subsequent centralized processing. The upper surface of the dustproof net is an iron plate, which can be adsorbed by a magnet, thereby playing the role of fixing the dustproof net.

[0034] The specific usage is as follows:

[0035] Insert the dust screen 1 5 and the dust screen 2 6 to the corresponding positions, and rotate the fixing plate 20 to the top thereof to limit the position of the dustproof assembly to avoid vertical movement under the action of the double-sided cleaning brush 8 during use;

[0036] Start motor 1 12 and motor 2 13, and the motors drive screw 10 and screw 2 11 to rotate respectively. Under the action of limit rod 14 and limit rod 2 15, the single-sided cleaning brush 9 makes horizontal reciprocating motion, and the double-sided cleaning brush 8 makes vertical reciprocating motion. The cleaned dust falls from the ash discharge port 16 into the ash collection box 18, which is convenient for subsequent processing.

[0037] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A dust-proof centrifugal fan, comprising a fan body (1), an air inlet (2) being provided on one side of the fan body (1), and an air outlet pipe (3) being provided on the fan body (1), characterized in that: An air inlet pipe (4) is provided at the air inlet (2), a dustproof component is provided in the air inlet pipe (4), the dustproof component comprises a first dustproof net (5) and a second dustproof net (6), a plurality of slots (7) are provided in the air inlet pipe (4), the first dustproof net (5) and the second dustproof net (6) are respectively inserted in the slots (7), and a dust cleaning component is provided on one side of the dustproof component; The cleaning component comprises a double-sided cleaning brush (8) and a single-sided cleaning brush (9); a screw rod (10) is provided on one side of the dustproof net (5) for rotation in the horizontal direction, and the single-sided cleaning brush (9) is threadedly inserted on the screw rod (10); a screw rod (11) is provided between the dustproof net (5) and the second dustproof net (6) for rotation in the vertical direction, and the double-sided cleaning brush (8) is threadedly inserted on the screw rod (11).

2. The dust-proof centrifugal fan according to claim 1, characterized in that: The air inlet pipe (4) is provided with a motor 1 (12) and a motor 2 (13), respectively; the output end of the motor 1 (12) is connected to the screw rod 1 (10), and the output end of the motor 2 (13) is connected to the screw rod 2 (11).

3. The dust-proof centrifugal fan according to claim 1, characterized in that: The second dustproof net (6) is close to the air inlet (2), and the mesh size of the first dustproof net (5) is larger than the mesh size of the second dustproof net (6).

4. The dust-proof centrifugal fan according to claim 1, characterized in that: Limit rods 1 (14) are symmetrically arranged on both sides of the screw rod 1 (10), and limit rods 2 (15) are arranged on both sides of the screw rod 2 (11). The single-sided cleaning brush (9) and the double-sided cleaning brush (8) are slidably arranged on the limit rods 1 (14) and 2 (15), respectively.

5. The dust-proof centrifugal fan according to claim 1, characterized in that: The bottom surface of the air inlet pipe (4) is provided with dust discharge ports (16) on both sides of the dustproof net 1 (5) and on the side of the dustproof net 2 (6) close to the screw rod 2 (11), and the two sides of the air inlet pipe (4) are provided with plug-in components (17), and a dust collection box (18) is slidably provided on the plug-in components (17).

6. The dust-proof centrifugal fan according to claim 1, characterized in that: An insertion hole (19) is provided on the upper surface of the air inlet pipe (4) at a position opposite to the slot (7), and fixing plates (20) are rotatably provided on both sides of the insertion hole (19), and the fixing plates (20) have built-in magnets.

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