Air duct cover plate of refrigerator

Abstract

The utility model discloses an air duct cover plate of a refrigerator, which comprises a mounting plate, one side of the mounting plate is provided with an air duct cover plate body, the air duct cover plate body comprises a dust removal mechanism, the dust removal mechanism comprises a motor, one side of the motor is fixedly connected with the air duct cover plate body, and the output end of the motor is fixedly connected with a driving gear. According to the air duct cover plate of the refrigerator, by arranging the dust removal mechanism, when the air duct cover plate works, outside air is filtered through the filter plate, dust is prevented from entering the refrigerator, when the filter plate needs to be cleaned, the motor drives the driving gear to rotate, the driving gear drives the driven gear to rotate, and therefore the rotating shaft rotates and drives the filter plate to rotate; when the filter plate rotates, the filter plate can be brushed by the dust removal brush to remove dust, the fan works to suck the brushed dust through the dust suction head, then the dust is discharged into the inner cavity of the filter cylinder through the air guide pipe, and the dust is filtered through the filter element in the inner cavity of the filter cylinder.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator technology, specifically to a refrigerator air duct cover. Background Technology

[0002] As people's living standards improve, their requirements for refrigerator preservation and food hygiene are becoming increasingly stringent. The refrigerator air duct cover, as a key component for internal air circulation, plays a crucial role in guiding airflow and protecting the air duct.

[0003] According to patent document CN213480704U, a refrigerator duct cover is disclosed, comprising a main body, an outer shell fixedly attached to the surface of the main body, and mounting bolts at the four corners of the outer shell. Each mounting bolt includes a circular plate, a recess, a pull ring, a pressure plate, a spring, a support column, a fixing block, and a central shaft. A recess is formed at the center of the circular plate, and a pull ring is located within the recess. The central shaft is mounted on the transverse axis of the pull ring, allowing the pull ring to move around the central shaft. The bottom of the central shaft is connected to the support column. In this refrigerator duct cover, the circular plate and pressure plate are parallel and have the same diameter, facilitating retraction within a corresponding range during disassembly and preventing excessive spring force that could damage the mounting bolts. Sealing rings are provided on the four perimeters of the main body to increase sealing and improve the sealing effect. The positions of the locking columns match the mounting holes at the four corners of the refrigerator body, accurately aligning the cover position for a more complete and sealed seal, improving aesthetics.

[0004] Existing refrigerator duct covers have significant flaws in their dustproof design. Traditional duct covers mostly use an open structure, achieving ventilation only through simple mesh or holes. The pore size is relatively large, making it unable to effectively intercept dust particles in the air. During refrigerator operation, dust carried by the outside air can easily enter the refrigerator through the duct cover, potentially causing damage to internal components. Utility Model Content

[0005] The purpose of this utility model is to provide a refrigerator air duct cover to solve the obvious defects in the dustproof design of existing refrigerator air duct covers mentioned in the background art. Traditional air duct covers mostly adopt an open structure, which only achieves ventilation through simple mesh or holes. The pore size is relatively large and cannot effectively intercept dust particles in the air. During the operation of the refrigerator, dust carried by the outside air can easily enter the refrigerator through the air duct cover, which can easily lead to damage to the internal components of the refrigerator.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a refrigerator duct cover, comprising a mounting plate, a duct cover body being provided on one side of the mounting plate, the duct cover body including a dust removal mechanism, the dust removal mechanism including a motor, one side of the motor being fixedly connected to the duct cover body, a drive gear being fixedly connected to the output end of the motor, a driven gear meshing on one side of the drive gear, a fixed cylinder being fixedly connected to the top and bottom of the front of the duct cover body located at the central axis, a filter plate being provided on one side of the fixed cylinder, a rotating shaft being fixedly connected to one side of the filter plate, a cleaning brush contacting the other side of the filter plate, a cleaning brush being fixedly connected to one side of the fixed cylinder, a suction head being provided on the front of the fixed cylinder, an air guide pipe being connected to one side of the suction head, a filter cartridge being provided on one side of the air guide pipe, a filter cartridge being inserted into the air guide pipe via a corrugated pipe on one side of the filter cartridge, an exhaust pipe being inserted into the other side of the filter cartridge via a corrugated pipe, and a fan being connected to one side of the exhaust pipe.

[0007] Preferably, a limiting mechanism is provided on the other side of the duct cover body. The limiting mechanism includes a pin, one side of which is fixedly connected to the duct cover body. A fixing block is inserted into the surface of the pin, and one side of the fixing block is fixedly connected to the mounting plate. Boxes are fixedly connected to both sides of the top front of the duct cover body. A spring is fixedly connected to one side of the inner cavity of the box, and a rectangular block is fixedly connected to one side of the spring. A prism is fixedly connected to the inner cavity of the rectangular block. A connecting seat is inserted into one side of the prism, and one side of the connecting seat is fixedly connected to the mounting plate. A handle is fixedly connected to the other side of the prism.

[0008] Preferably, a housing is provided on one side of the motor, the rear side of the housing is fixedly connected to the air duct cover body, a drive sprocket is provided on one side of the inner cavity of the housing, a connecting shaft is fixedly connected to one side of the drive sprocket, a driven gear is fixedly connected to one side of the connecting shaft, a chain is meshed on the surface of the drive sprocket, a driven sprocket is meshed on one side of the inner surface of the chain, and a rotating shaft is fixedly connected to the inner cavity of the driven gear.

[0009] Preferably, a fixing rod is fixedly connected to one side of the vacuum head, and one side of the fixing rod is fixedly connected to the air duct cover body.

[0010] Preferably, a fixing seat is fixedly connected to one side of the fan, and one side of the fixing seat is fixedly connected to the duct cover plate body.

[0011] Preferably, one side of the rotating shaft is movably connected to the fixed cylinder via a bearing, and one side of the connecting shaft is movably connected to the housing via a bearing.

[0012] Preferably, rectangular holes are provided on both sides of the box body, and the inner cavity of the rectangular hole is slidably connected to the prism.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By setting up a dust removal mechanism, the filter plates filter the outside air during operation, preventing dust from entering the refrigerator. When the filter plates need to be cleaned, the motor and fan are started by the external PLC controller. The motor drives the drive gear to rotate, which in turn drives the driven gear to rotate, thus rotating the shaft. The shaft drives the filter plates to rotate, and during the rotation of the filter plates, they are brushed off by the cleaning brush. The fan sucks the brushed dust into the suction head and then discharges it into the inner cavity of the filter cartridge through the air guide pipe. The dust is then filtered off by the filter element in the inner cavity of the filter cartridge. After that, the air guide pipe and the suction pipe are separated from the corrugated pipe, and the filter cartridge can be disassembled for easy dust disposal.

[0015] 2. By setting a limiting mechanism, when it is necessary to remove the duct cover body, pull the handle. The handle drives the prism to move. After the prism moves away from the connecting seat, the duct cover body can be moved upward. The duct cover body drives the pin to move. After the pin moves away from the fixing block, the disassembly work can be completed. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a partial structural schematic diagram of the present invention;

[0018] Figure 3 This is a partial three-dimensional structural diagram of the limiting mechanism of this utility model;

[0019] Figure 4 This is a partial three-dimensional structural diagram of the dust removal mechanism of this utility model.

[0020] In the diagram: 1. Mounting plate; 2. Dust duct cover body; 3. Dust removal mechanism; 301. Motor; 302. Drive gear; 303. Driven gear; 304. Housing; 305. Drive sprocket; 306. Connecting shaft; 307. Chain; 308. Driven sprocket; 309. Rotating shaft; 310. Fixed cylinder; 311. Filter plate; 312. Cleaning brush; 313. Dust suction head; 314. Air guide pipe; 315. Filter cartridge; 316. Exhaust pipe; 317. Fan; 4. Limiting mechanism; 401. Pin; 402. Fixed block; 403. Housing; 404. Spring; 405. Rectangular block; 406. Prism; 407. Connecting seat; 408. Handle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 , Figure 2 and Figure 4This utility model provides a technical solution: a refrigerator duct cover, including a mounting plate 1, a duct cover body 2 is provided on one side of the mounting plate 1, the duct cover body 2 includes a dust removal mechanism 3, the dust removal mechanism 3 includes a motor 301, one side of the motor 301 is fixedly connected to the duct cover body 2, the output end of the motor 301 is fixedly connected to a drive gear 302, one side of the drive gear 302 is meshed with a driven gear 303, the front of the duct cover body 2 and the top and bottom of the central axis are fixedly connected to a fixing cylinder 310, a filter plate 311 is provided on one side of the fixing cylinder 310, a rotating shaft 309 is fixedly connected to one side of the filter plate 311, and a dust removal brush 312 contacts the other side of the filter plate 311. One side of the dust removal brush 312 is fixedly connected to the fixed cylinder 310. A suction head 313 is provided on the front of the fixed cylinder 310. One side of the suction head 313 is connected to an air duct 314. A filter cartridge 315 is provided on one side of the air duct 314. One side of the filter cartridge 315 is inserted into the air duct 314 via a corrugated pipe. The other side of the filter cartridge 315 is inserted into an exhaust pipe 316 via a corrugated pipe. One side of the exhaust pipe 316 is connected to a fan 317. By setting up the dust removal mechanism 3, during operation, the filter plate 311 filters the outside air to prevent dust from entering the refrigerator. When the filter plate 311 needs cleaning, the external PLC controller starts the motor 301 and the fan 317 to operate. 1. The driving gear 302 rotates, which in turn drives the driven gear 303 to rotate, thereby causing the rotating shaft 309 to rotate. The rotating shaft 309 drives the filter plate 311 to rotate. During the rotation of the filter plate 311, it is brushed by the cleaning brush 312, which brushes off the dust. The working fan 317 sucks in the brushed dust through the suction head 313, and then discharges it through the air guide pipe 314 to the inner cavity of the filter cartridge 315. The dust is filtered off by the filter element in the inner cavity of the filter cartridge 315. Then, the air guide pipe 314 and the suction pipe 316 are separated from the corrugated pipe, and the filter cartridge 315 can be disassembled for easy dust disposal. A housing 304 is provided on one side of the motor 301, and the rear side of the housing 304 is fixed to the air duct cover body 2. A drive sprocket 305 is provided on one side of the inner cavity of the housing 304. A connecting shaft 306 is fixedly connected to one side of the drive sprocket 305. A driven gear 303 is fixedly connected to one side of the connecting shaft 306. A chain 307 meshes with the surface of the drive sprocket 305. A driven sprocket 308 meshes with one side of the inner surface of the chain 307. A rotating shaft 309 is fixedly connected to the inner cavity of the driven gear 303. The driven gear 303 drives the connecting shaft 306 to rotate. The connecting shaft 306 drives the drive sprocket 305 to rotate. The drive sprocket 305 drives the chain 307 to rotate. The chain 307 drives the driven gear 303 to rotate. The driven sprocket 308 drives the rotating shaft 309 to rotate, thereby facilitating the rotation of the filter plate 311.A fixing rod is fixedly connected to one side of the vacuum head 313, and one side of the fixing rod is fixedly connected to the air duct cover body 2. The fixing rod stabilizes the operation of the vacuum head 313 and limits its movement. A fixing seat is fixedly connected to one side of the fan 317, and one side of the fixing seat is fixedly connected to the air duct cover body 2. The fixing seat stabilizes the operation of the fan 317 and limits its movement. One side of the rotating shaft 309 is movably connected to the fixed cylinder 310 via a bearing, and one side of the connecting shaft 306 is movably connected to the housing 304 via a bearing. The bearings stabilize the operation of the rotating shaft 309 and the connecting shaft 306.

[0023] Please see Figure 1 and Figure 3 On the other side of the duct cover body 2, a limiting mechanism 4 is provided. The limiting mechanism 4 includes a pin 401. One side of the pin 401 is fixedly connected to the duct cover body 2. A fixing block 402 is inserted into the surface of the pin 401. One side of the fixing block 402 is fixedly connected to the mounting plate 1. Boxes 403 are fixedly connected to both sides of the top front of the duct cover body 2. A spring 404 is fixedly connected to one side of the inner cavity of the box 403. A rectangular block 405 is fixedly connected to one side of the spring 404. A prism 406 is fixedly connected to the inner cavity of the rectangular block 405. A connecting seat 407 is inserted into one side of the prism 406. One side of the connecting seat 407 is fixedly connected to the mounting plate 1. A handle 408 is fixedly connected to the other side of the prism 406. By setting a limiting mechanism 4, when it is necessary to remove the air duct cover body 2, the handle 408 is pulled, and the handle 408 drives the prism 406 to move. After the prism 406 moves away from the connecting seat 407, the air duct cover body 2 can be moved upward. The air duct cover body 2 drives the pin 401 to move. After the pin 401 moves away from the fixing block 402, the disassembly work can be completed. Rectangular holes are opened on both sides of the box 403, and the inner cavity of the rectangular hole is slidably connected to the prism 406. By setting the rectangular holes, the operation of the prism 406 is stabilized and balanced support is provided for the prism 406.

[0024] Working principle: By setting up the dust removal mechanism 3, the external air is filtered through the filter plate 311 during operation to prevent dust from entering the refrigerator. When the filter plate 311 needs to be cleaned, the motor 301 and the fan 317 are started by the external PLC controller. The motor 301 drives the drive gear 302 to rotate, which in turn drives the driven gear 303 to rotate, thereby causing the rotating shaft 309 to rotate. The rotating shaft 309 drives the filter plate 311 to rotate. During the rotation of the filter plate 311, it is brushed by the cleaning brush 312, which brushes off the dust. The working of the fan 317 sucks the brushed dust into the suction head 313 and then discharges it into the inner cavity of the filter cartridge 315 through the air guide pipe 314. The dust is filtered off by the filter element in the inner cavity of the filter cartridge 315. Then the air guide pipe 314 and the suction pipe 316 are separated from the corrugated pipe, and the filter cartridge 315 can be disassembled for easy dust disposal.

[0025] By setting the limiting mechanism 4, when it is necessary to remove the air duct cover body 2, pull the handle 408. The handle 408 drives the prism 406 to move. After the prism 406 moves away from the connecting seat 407, the air duct cover body 2 can be moved upward. The air duct cover body 2 drives the pin 401 to move. After the pin 401 moves away from the fixing block 402, the disassembly work can be completed.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A refrigerator duct cover, comprising a mounting plate (1), characterized in that: A duct cover body (2) is provided on one side of the mounting plate (1). The duct cover body (2) includes a dust removal mechanism (3). The dust removal mechanism (3) includes a motor (301). One side of the motor (301) is fixedly connected to the duct cover body (2). A drive gear (302) is fixedly connected to the output end of the motor (301). A driven gear (303) meshes with one side of the drive gear (302). Fixed cylinders (310) are fixedly connected to the top and bottom of the front of the duct cover body (2) at the central axis. A filter plate (311) is provided on one side of the fixed cylinder (310). One side of the filter plate (311) has a filter plate (311) on one side. A rotating shaft (309) is fixedly connected to the side of the filter plate (311). A dust cleaning brush (312) is in contact with the other side of the filter plate (311). One side of the dust cleaning brush (312) is fixedly connected to the fixed cylinder (310). A dust suction head (313) is provided on the front of the fixed cylinder (310). A duct pipe (314) is connected to one side of the dust suction head (313). A filter cartridge (315) is provided on one side of the duct pipe (314). One side of the filter cartridge (315) is inserted into the duct pipe (314) through a corrugated pipe. An exhaust pipe (316) is inserted into the other side of the filter cartridge (315) through a corrugated pipe. A fan (317) is connected to one side of the exhaust pipe (316).

2. The air duct cover of a refrigerator according to claim 1, characterized in that: On the other side of the duct cover body (2), a limiting mechanism (4) is provided. The limiting mechanism (4) includes a pin (401). One side of the pin (401) is fixedly connected to the duct cover body (2). A fixing block (402) is inserted into the surface of the pin (401). One side of the fixing block (402) is fixedly connected to the mounting plate (1). Both sides of the top front of the duct cover body (2) are fixedly connected to a housing (403). One side of the inner cavity of the housing (403) is fixedly connected to a spring (404). One side of the spring (404) is fixedly connected to a rectangular block (405). The inner cavity of the rectangular block (405) is fixedly connected to a prism (406). One side of the prism (406) is inserted into a connecting seat (407). One side of the connecting seat (407) is fixedly connected to the mounting plate (1). The other side of the prism (406) is fixedly connected to a handle (408).

3. The air duct cover of a refrigerator according to claim 1, characterized in that: A housing (304) is provided on one side of the motor (301). The rear side of the housing (304) is fixedly connected to the air duct cover body (2). A drive sprocket (305) is provided on one side of the inner cavity of the housing (304). A connecting shaft (306) is fixedly connected to one side of the drive sprocket (305). A driven gear (303) is fixedly connected to one side of the connecting shaft (306). A chain (307) is meshed on the surface of the drive sprocket (305). A driven sprocket (308) is meshed on one side of the inner surface of the chain (307). A rotating shaft (309) is fixedly connected to the inner cavity of the driven gear (303).

4. The air duct cover of a refrigerator according to claim 1, characterized in that: A fixing rod is fixedly connected to one side of the vacuum head (313), and one side of the fixing rod is fixedly connected to the air duct cover body (2).

5. The air duct cover of a refrigerator according to claim 1, characterized in that: The fan (317) is fixedly connected to a fixed seat on one side, and the fixed seat is fixedly connected to the duct cover body (2) on one side.

6. The air duct cover of a refrigerator according to claim 3, characterized in that: One side of the rotating shaft (309) is movably connected to the fixed cylinder (310) via a bearing, and one side of the connecting shaft (306) is movably connected to the housing (304) via a bearing.

7. The air duct cover of a refrigerator according to claim 2, characterized in that: The box (403) has rectangular holes on both sides, and the inner cavity of the rectangular holes is slidably connected to the prism (406).

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