Air conditioner air pipe with multi-stage filtering structure

Abstract

The utility model discloses an air-conditioner air duct with a multistage filter structure, which relates to the field of air-conditioner air ducts and comprises an air duct body, a first fan blade is rotatably connected to one side in the air duct body, a dust outlet is formed in the bottom end of the air duct body, a cloth bag body is connected to the outer side of the top end of the air duct body in a clamping manner, and a dust outlet is formed in the cloth bag body. A multi-stage filtering mechanism for filtering dust in wind is arranged on the inner side of the cloth bag body, a limiting frame is fixedly connected to one end between the cloth bag bodies, and the limiting frame is arranged in the air pipe body. According to the air conditioner air pipe provided with the multi-stage filtering structure, air enters from one side of the air pipe body, then the air can penetrate through the two filtering nets to conduct basic filtering on gas and reduce dust in the gas, then the air can penetrate through the filtering nets and then penetrate through the limiting frame, secondary dust removal and filtering treatment is conducted through the limiting frame, dust in the air is effectively reduced, and the service life of the air conditioner air pipe is prolonged. The cleanliness of the air pipe during air conveying is guaranteed, and dust is prevented from being conveyed by the air pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning air ducts, and particularly relates to an air-conditioning air duct provided with a multi-stage filtering structure. Background Art

[0002] An air duct is a duct system used for air transportation and distribution. There are two types, namely composite air ducts and inorganic air ducts, which are distinguished according to different cross-sectional shapes and materials. Among them, the circular air duct has the smallest resistance but the largest height dimension and is complex to manufacture, so rectangular air ducts are mainly used in applications.

[0003] In the prior art, a Chinese patent with the authorization announcement number CN207975811U discloses an air-conditioning air duct, aiming to solve the problem that when the existing air-conditioning air duct ventilates, microorganisms are blown into the room along with the air flow, causing serious health hazards. The key points of its technical solution are: including a duct body, a sterilization plate is arranged inside the duct body, the sterilization plate is a spiral plate spirally arranged along the extension direction of the duct body, the duct body is a galvanized plate, and a heat preservation layer is arranged outside the duct body, and the heat preservation layer is made of pearl cotton, which has the advantages of sterilization and heat insulation.

[0004] The above mechanism plays a role in treating microorganisms through the mutual cooperation of the sterilization plate and the heat preservation layer inside the duct. However, in the actual use process, due to continuous air intake inside the air-conditioning air duct, dust will accumulate inside, and excessive dust accumulation will cause the inside of the air duct to be dirty, affecting the air outlet effect and the cleanliness of the air outlet. Content of the Utility Model

[0005] The purpose of the utility model is to provide an air-conditioning air duct provided with a multi-stage filtering structure to solve the problem that due to continuous air intake inside the air-conditioning air duct in the above background art, dust will accumulate inside, and excessive dust accumulation will cause the inside of the air duct to be dirty.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an air-conditioning air duct provided with a multi-stage filtering structure, including a duct body, a first fan blade is rotatably connected to one side inside the duct body, and a dust outlet is opened at the bottom end of the duct body;

[0007] A cloth bag body is snap-connected to the outer side of the top end of the duct body, and a multi-stage filtering mechanism for filtering dust from the air is arranged inside the cloth bag body. One end between the cloth bag bodies is fixedly connected with a limiting frame, and the limiting frame is arranged inside the duct body;

[0008] A second fan blade is rotatably connected to the inside of the duct body below the limiting frame, and a dust removal mechanism for knocking the limiting frame is arranged at both ends of the second fan blade.

[0009] Further, a filter screen is fixedly connected to one side of the air duct body close to the first fan blade, and the filter screen is arranged on one side of the dust outlet.

[0010] Further, the dust removal mechanism includes a cam, and the cam is rotatably connected to both ends outside the air duct body. The cam is connected to the second fan blade through a belt. At the middle positions of both ends of the cloth bag body, fixing rods are fixedly connected, and reset plates are fixedly connected to both sides of the fixing rods.

[0011] Further, one side of the bottom end of the reset plate is fixedly connected with a reset spring, and the bottom end of the reset spring is fixedly connected with a fixing plate, and the fixing plate is fixedly connected to both ends of the air duct body.

[0012] Further, a cleaning mechanism for the filter screen is arranged inside the air duct body on one side of the first fan blade. The cleaning mechanism includes a threaded rod, and the threaded rod is rotatably connected to both ends inside the air duct body. An active block is threadedly connected to the outer side of the threaded rod, and a fixing box is fixedly connected to one side of the active block through a connecting rod.

[0013] Further, a cleaning brush is fixedly connected to one side inside the fixing box through a connecting spring, and the cleaning brush is arranged on one side of the filter screen.

[0014] Further, the connecting spring is connected to the fixing box, and an elastic structure is formed between the connecting spring and the cleaning brush.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] 1. Wind enters from one side of the air duct body, and then the wind passes through two filter screens to conduct basic filtration on the gas, reducing the dust in the gas. Then the wind passes through the filter screen and then through the limiting frame, and the cloth bag body is used for secondary dust removal and filtration treatment, effectively reducing the dust in the air, ensuring the cleanliness when the air duct conveys wind, and preventing dust from being conveyed by the air duct.

[0017] Further, the two filter screens can play a basic filtering role to prevent too much dust from entering the inside of the air duct body. Through the mutual cooperation of the limiting frame and the cloth bag body, the last dust removal and filtration can be realized, reducing dust residue.

[0018] Furthermore, the dust adsorbed by the limiting frame and the cloth bag body during filtration falls due to repeated vibration, and the shaken-off dust can be discharged through the dust outlet, preventing the dust from accumulating inside the air duct body and affecting the subsequent wind transmission.

[0019] 2. The second fan blade drives the cam to rotate through a pulley. During the rotation of the cam, it continuously knocks on the fixed rod, causing the fixed rod to drive the limit frame to move upward. The limit frame and the cloth bag body are lifted up and then fall due to their own weight, so that the cloth bag body is vibrated, and the dust accumulated on the outer side of the cloth bag body due to the filtered air is shaken off. With the assistance of wind for vibration knocking, the dust treatment is completed;

[0020] Further, when the wind enters the inside of the air duct body, it drives the first fan blade to rotate. When the first fan blade rotates, it drives the threaded rod to rotate, and the movable block is driven. The movable block can drive the connecting rod and the fixed box to move, and the cleaning brush inside the fixed box contacts the filter net, so that the dust accumulated on the surface of the filter net falls off. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a front view three-dimensional structure schematic diagram of the present utility model;

[0022] Figure 2 is a front view sectional three-dimensional structure schematic diagram of the present utility model;

[0023] Figure 3 is a three-dimensional structure schematic diagram of the cleaning mechanism of the present utility model;

[0024] Figure 4 is a three-dimensional structure schematic diagram of the dust removal mechanism of the present utility model;

[0025] Figure 5 is an exploded structure schematic diagram of the cleaning brush of the present utility model;

[0026] Figure 6 is a structure schematic diagram of the cloth bag body of the present utility model;

[0027] Figure 7 is a three-dimensional structure schematic diagram of the second fan blade of the present utility model.

[0028] In the figure: 1, air duct body; 2, first fan blade; 3, threaded rod; 4, movable block; 5, connecting rod; 6, fixed box; 7, connecting spring; 8, cleaning brush; 9, filter net; 10, dust outlet; 11, limit frame; 12, cloth bag body; 13, second fan blade; 14, fixed rod; 15, reset plate; 16, reset spring; 17, fixed plate; 18, cam. DETAILED DESCRIPTION OF THE EMBODIMENTS

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

[0030] Embodiment 1: As Figure 1 , Figure 2 , Figure 3 and Figure 6 shown in the technical solution, in order to solve the problem that due to continuous air intake inside the air-conditioning duct, dust will accumulate inside, and excessive dust accumulation will cause the inside of the duct to be dirty: The air-conditioning duct provided with a multi-stage filtering structure discloses a multi-stage filtering mechanism, including a duct body 1, a first fan blade 2 is rotatably connected to one side inside the duct body 1, a dust outlet 10 is opened at the bottom end of the duct body 1, the outer side of the top end of the duct body 1 is snap-connected with a cloth bag body 12, and a multi-stage filtering mechanism for filtering dust from the air is arranged inside the cloth bag body 12. One end between the cloth bag bodies 12 is fixedly connected with a limiting frame 11, and the limiting frame 11 is arranged inside the duct body 1. A filter screen 9 is fixedly connected to one side inside the duct body 1 close to the first fan blade 2, and the filter screen 9 is arranged on one side of the dust outlet 10.

[0031] In this example, air enters from one side of the duct body 1, then the air passes through two filter screens 9 to perform basic filtering on the gas, reducing the dust in the gas. Then the air passes through the filter screen 9 and then through the limiting frame 11, and the cloth bag body 12 is used for secondary dust removal and filtering treatment, effectively reducing the dust in the air, ensuring the cleanliness of the air transmitted by the duct, and preventing dust from being transmitted by the duct.

[0032] Embodiment 2: As Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 7The described technical solution aims to solve the problem that dust accumulation on the surface of the cloth bag body 12 affects the dust removal effect: The air duct of the air conditioner with a multi-stage filtration structure discloses a dust removal mechanism. A second fan blade 13 is rotatably connected inside the air duct body 1 below the limiting frame 11, and dust removal mechanisms for knocking on the limiting frame 11 are provided at both ends of the second fan blade 13. The dust removal mechanism includes a cam 18, and the cam 18 is rotatably connected to both ends outside the air duct body 1. The cam 18 is connected to the second fan blade 13 through a belt. Fixing rods 14 are fixedly connected to the middle positions of both ends of the cloth bag body 12, and reset plates 15 are fixedly connected to both sides of the fixing rods 14. A reset spring 16 is fixedly connected to one side of the bottom end of the reset plate 15, and the bottom end of the reset spring 16 is fixedly connected to a fixing plate 17. The fixing plate 17 is fixedly connected to both ends of the air duct body 1.

[0033] In this example, during the process of dust removal using the limiting frame 11, the second fan blade 13 is driven by the wind to rotate, so that the second fan blade 13 drives the cam 18 to rotate through a pulley. During the rotation of the cam 18, it will continuously knock on the fixing rod 14, causing the fixing rod 14 to drive the limiting frame 11 to move upward. The cloth bag body 12 and the limiting frame 11 are lifted and then fall due to their own weight, so that the cloth bag body 12 is vibrated, and the dust accumulated on the outside of the cloth bag body 12 due to the filtered air is shaken off. Finally, the dust is discharged from the air duct through the dust outlet 10, thus realizing the treatment of the dust and avoiding excessive dust accumulation outside the limiting frame 11, which may affect the passage of air due to excessive subsequent dust accumulation.

[0034] Embodiment Three: As Figures 1-7 The described technical solution aims to solve the problem that dust accumulation on the surface of the filter screen 9 affects the air intake effect: The air duct of the air conditioner with a multi-stage filtration structure discloses a cleaning mechanism. A cleaning mechanism for the filter screen 9 is provided inside the air duct body 1 on one side of the first fan blade 2. The cleaning mechanism includes a threaded rod 3, and the threaded rod 3 is rotatably connected to both ends inside the air duct body 1. A movable block 4 is threadedly connected to the outside of the threaded rod 3, and a fixing box 6 is fixedly connected to one side of the movable block 4 through a connecting rod 5. A cleaning brush 8 is fixedly connected to one side inside the fixing box 6 through a connecting spring 7, and the cleaning brush 8 is arranged on one side of the filter screen 9. The connecting spring 7 is connected to the fixing box 6, and an elastic structure is formed between the connecting spring 7 and the cleaning brush 8.

[0035] In this example, when the wind enters the interior of the air duct body 1, it drives the first fan blade 2 to rotate. When the first fan blade 2 rotates, it drives the threaded rod 3 to rotate. The threaded rod 3 is threadedly connected to the outer movable block 4, enabling the movable block 4 to move back and forth on the outer side of the threaded rod 3. The movable block 4 can drive the connecting rod 5 and the fixed box 6 to move. The cleaning brush 8 inside the fixed box 6 contacts and cleans the filter net 9, causing the dust accumulated on the surface of the filter net 9 to fall off, ensuring the basic efficiency of air filtration.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air duct for an air conditioner provided with a multi-stage filtering structure, comprising an air duct body (1), a first fan blade (2) being rotatably connected to one side of the air duct body (1), and a dust outlet (10) being provided at the bottom end of the air duct body (1); Features: The outer side of the top end of the air duct body (1) is snap-connected with a bag body (12), and the inner side of the bag body (12) is provided with a multi-stage filtering mechanism for filtering dust from the air, one end of the bag body (12) is fixedly connected with a limiting frame (11), and the limiting frame (11) is provided inside the air duct body (1); A second fan blade (13) is rotatably connected inside the air duct body (1) below the limiting frame (11), and dust removal mechanisms for knocking the limiting frame (11) are provided at both ends of the second fan blade (13).

2. The air duct of an air conditioner with a multi-stage filtering structure according to claim 1, characterized in that: A filter screen (9) is fixedly connected to a side of the air duct body (1) close to the first fan blade (2), and the filter screen (9) is arranged on one side of the dust outlet (10).

3. The air conditioning duct with a multi-stage filtering structure according to claim 2, characterized in that: The dust removal mechanism comprises a cam (18), and the cam (18) is rotatably connected to two ends of the outside of the air duct body (1), the cam (18) is connected to the second fan blade (13) via a belt, and fixed rods (14) are fixedly connected at middle positions of both ends of the bag body (12), and reset plates (15) are fixedly connected to both sides of the fixed rod (14).

4. The air conditioning duct with a multi-stage filtering structure according to claim 3, characterized in that: A reset spring (16) is fixedly connected to one side of the bottom end of the reset plate (15), and a fixing plate (17) is fixedly connected to the bottom end of the reset spring (16), and the fixing plate (17) is fixedly connected to both ends of the air duct body (1).

5. The air conditioning duct with a multi-stage filtering structure according to claim 1, characterized in that: A cleaning mechanism for cleaning the filter screen (9) is arranged inside the air duct body (1) on one side of the first fan blade (2), the cleaning mechanism comprising a threaded rod (3), and the threaded rod (3) is rotatably connected to two ends inside the air duct body (1), the outer side of the threaded rod (3) is threadedly connected to a movable block (4), and one side of the movable block (4) is fixedly connected to a fixing box (6) via a connecting rod (5).

6. The air conditioning duct with a multi-stage filtering structure according to claim 5, characterized in that: A cleaning brush (8) is fixedly connected to one side of the interior of the fixed box (6) via a connecting spring (7), and the cleaning brush (8) is arranged on one side of the filter screen (9).

7. The air duct of an air conditioner with a multi-stage filtering structure according to claim 6, characterized in that: The connecting spring (7) is connected to the fixing box (6), and an elastic structure is formed between the connecting spring (7) and the cleaning brush (8).

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