Ventilation filtering pipeline of air conditioner
By using a motor to drive the filter plate to flip and backflush the air to clean the air conditioning ventilation filter duct, the problem of secondary pollution during the cleaning process in the existing technology is solved, and a highly efficient and pollution-free filter plate cleaning effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-18
- Publication Date
- 2026-03-03
AI Technical Summary
Existing air conditioning ventilation filter ducts are prone to secondary pollution during cleaning, and cleaning is inconvenient, affecting cooling and heating performance.
An air conditioning ventilation filter duct was designed. The filter plate is driven by a motor to flip and backflush the gas for cleaning. The slag discharge port is sealed by a cover plate, and the dust is collected by a gauze bag to prevent the dust from spreading.
It achieves efficient cleaning without secondary pollution, simplifies the cleaning process of the filter plate, and ensures the normal operation of the air conditioning system.
Smart Images

Figure CN223965542U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of ventilation duct filtration, specifically an air conditioning ventilation filtration duct. Background Technology
[0002] Air conditioning is becoming increasingly common in daily life, and ventilation ducts are an important component of central air conditioning systems. Ventilation ducts are metal or composite pipes used in ventilation and air conditioning projects in industrial and civil buildings. They are components that allow air circulation and transport gas. To filter the gas inside the duct, filters are usually used. These filters need to be cleaned regularly to avoid affecting the cooling and heating effects. Patent CN221959026U, entitled "An Air Conditioning Ventilation Filter Duct," discloses a device for cleaning filter plates with a brush. However, the brush in this device is exposed to the gas inside the duct for a long time, making it easy for dust to adhere and become dirty, thus affecting the cleaning effect and causing secondary pollution. At the same time, the collection box of this device is connected to the duct, and when the gas blows through, the collected dust is easily scattered, affecting normal use. Therefore, we have designed an air conditioning ventilation filter duct that is more convenient to use. Utility Model Content
[0003] This utility model provides an air conditioning ventilation filter duct to overcome the defects in the prior art.
[0004] This utility model is achieved through the following technical solution:
[0005] An air conditioning ventilation filtration duct includes a ventilation pipe with a filter plate inside. The filter plate is rotatably installed inside the ventilation pipe and connected to the output shaft of a motor. The motor is fixedly installed on the ventilation pipe. A slag discharge port is opened at the bottom of the ventilation pipe. A gauze bag is provided on one side of the slag discharge port and a cover plate is provided on the other side of the slag discharge port. The cover plate can close the slag discharge port. The cover plate is rotatably installed inside the ventilation pipe and is connected to the motor through a transmission mechanism. The motor can drive the cover plate to rotate through the transmission mechanism.
[0006] As described above, in an air conditioning ventilation filter duct, an elastic rubber ring is fixedly installed on the outer periphery of the filter plate.
[0007] As described above, in an air conditioning ventilation filter duct, the transmission mechanism includes a first sprocket, which is fixedly mounted on the output shaft of a motor. Rotating rods are fixedly mounted on both sides of the cover plate, one of which extends to the outside of the ventilation duct and is fixedly mounted on a coaxial second sprocket. The first sprocket and the second sprocket are connected by a chain drive, and the transmission ratio between the second sprocket and the first sprocket is 0.5.
[0008] In the air conditioning ventilation filter duct described above, a rubber pad is fixedly installed on the cover plate corresponding to the slag discharge port.
[0009] As described above, in an air conditioning ventilation filter duct, a slag discharge pipe with a flange is fixedly installed at the slag discharge port, a gauze bag is detachably installed on the slag discharge pipe, and a pull rope is movably sleeved on the gauze bag.
[0010] As described above, in an air conditioning ventilation filter duct, the upper and lower sides of the cover plate are arc-shaped.
[0011] The advantages of this utility model are: the utility model has a simple structure and ingenious design. By flipping the filter plate, the gas in the ventilation pipe blows back onto the filter plate to achieve cleaning without generating secondary pollution. When the filter plate does not need to be cleaned, the cover plate can block the slag discharge port to prevent the airflow in the ventilation pipe from blowing up the collected dust and impurities. It can meet practical needs and is suitable for promotion. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 A sectional view of the left view; Figure 3 This is a schematic diagram of the transmission mechanism.
[0014] Attached reference numerals: 1. Ventilation pipe, 2. Filter plate, 3. Motor, 4. Rotating shaft, 5. Slag discharge port, 6. Gauze bag, 7. Cover plate, 20. Elastic rubber ring, 30. First sprocket, 31. Rotating rod, 32. Second sprocket, 33. Chain, 40. Rubber pad, 50. Slag discharge pipe, 51. Pull rope. Detailed Implementation
[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0016] An air conditioning ventilation filter duct, such as Figure 1 , 2As shown in Figure 3, the system includes a ventilation pipe 1, and a filter plate 2 is provided inside the ventilation pipe 1. The filter plate 2 is rotatably installed inside the ventilation pipe 1. The filter plate 2 is connected to the output shaft of a motor 3. The motor 3 is fixedly installed on the ventilation pipe 1. Rotating shafts 4 are fixedly installed on both sides of the filter plate 2. The rotating shafts 4 are rotatably connected to the inner wall of a pre-reserved hole on the ventilation pipe 1 through sealed bearings. The output shaft of the motor 3 is coaxially fixedly connected to one of the rotating shafts 4. The motor 3 is fixedly installed on the outer wall of the ventilation pipe 1 through a support rod. A slag discharge port 5 is opened at the bottom of the ventilation pipe 1. A gauze bag 6 is provided on one side of the slag discharge port 5. A cover plate 7 is provided on the other side of the slag discharge port 5. The cover plate 7 can close the slag discharge port. The cover plate 7 is rotatably installed inside the ventilation pipe 1 and is connected to the motor 3 through a transmission mechanism. The motor 3 can drive the cover plate 7 to rotate through the transmission mechanism. This utility model has a simple structure and ingenious design. By flipping the filter plate 2, the gas in the ventilation pipe 1 back-blowing the filter plate 2 can achieve cleaning without generating secondary pollution. When the filter plate 2 does not need to be cleaned, the cover plate 7 can block the slag discharge port 5 to prevent the airflow in the ventilation pipe 1 from blowing up the collected dust and impurities. It can meet practical needs and is suitable for promotion. When the filter plate 2 needs cleaning, the motor 3 is operated to rotate the filter plate 2 until it flips 180° so that the air outlet side of the filter plate 2 faces the air inlet side of the ventilation pipe 1. When the motor 3 rotates the filter plate 2, it drives the cover plate 7 to rotate through the transmission mechanism, so that the cover plate 7 no longer blocks the slag discharge port 5 and blocks the side of the ventilation pipe 1 near the air outlet. Then the air conditioner is turned on, and airflow is generated in the ventilation pipe 1. The airflow blows down the dust and other impurities attached to the filter plate 2, and then follows the airflow into the gauze bag 6 and is collected by the gauze bag 6. The gas flows out through the mesh on the gauze bag 6, completing the cleaning process. After cleaning, the motor 3 is rotated in the opposite direction to reset the filter plate 2, and the cover plate 7 is rotated in the opposite direction through the transmission mechanism to re-seal the slag discharge port 5.
[0017] Specifically, as shown in the figure, an elastic rubber ring 20 is fixedly installed on the outer periphery of the filter plate 2 in this embodiment. The elastic rubber ring 20 can increase the sealing effect between the outer periphery of the filter plate 2 and the ventilation pipe 1, preventing air inside the pipe from leaking out through gaps without being filtered. At the same time, the elasticity of the elastic rubber ring 20 provides a margin for compression when the filter plate 2 rotates, which can prevent it from getting stuck on the inner wall of the ventilation pipe 1.
[0018] Specifically, as shown in the figure, the transmission mechanism in this embodiment includes a first sprocket 30, which is fixedly mounted on the output shaft of the motor 3. The output shaft of the motor 3 is coaxial with the first sprocket 30. Rotating rods 31 are fixedly mounted on both sides of the cover plate 7. The rotating rods 31 are rotatably mounted in the reserved holes on the ventilation pipe 1 through sealed bearings. One of the rotating rods 31 extends to the outside of the ventilation pipe 1 and is fixedly mounted with a coaxial second sprocket 32. The first sprocket 30 and the second sprocket 32 are connected by a chain 33. The transmission ratio between the second sprocket 32 and the first sprocket 30 is 0.5. When the first sprocket 30 rotates 180°, the second sprocket 32 rotates 90°. When motor 3 rotates in the forward direction, it drives filter plate 2 to rotate 180°. At the same time, motor 3 drives first sprocket 30 to rotate, and through chain 33, drives second sprocket 32 to rotate 90°, thereby causing cover plate 7 to rotate 90°. After cover plate 7 rotates 90°, it blocks ventilation pipe 1, and the blown gas can only be discharged through slag discharge port 5. When motor 3 rotates in the reverse direction, it drives filter plate 2 to rotate 180° to reset. Cover plate 7 also resets and re-closes slag discharge port 5.
[0019] Furthermore, as shown in the figure, a rubber gasket 40 is fixedly installed on the cover plate 7 corresponding to the slag discharge port 5 in this embodiment. When the cover plate 7 closes the slag discharge port 5, the cover plate 7 presses the rubber gasket 40 tightly, which can increase the sealing effect and prevent gas leakage.
[0020] Furthermore, as shown in the figure, in this embodiment, a slag discharge pipe 50 with a flange is fixedly installed at the slag discharge port 5. A gauze bag 6 is detachably installed on the slag discharge pipe 50. A pull rope 51 is movably sleeved on the gauze bag 6, and the opening of the gauze bag 6 has a channel for the pull rope 51 to pass through. When installing the gauze bag 6, put the gauze bag 6 on the slag discharge pipe 50, then tighten the pull rope 51 and tie the knot on the pull rope 51. The gauze bag 6 is then installed. When it is necessary to clean the gauze bag 6, simply untie the knot on the pull rope 51 and remove it. It is convenient to use.
[0021] Furthermore, as shown in the figure, the upper and lower sides of the cover plate 7 in this embodiment are both arc-shaped. The arc-shaped upper and lower sides of the cover plate 7 make it easier to rotate and avoid interference during rotation.
[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. An air conditioning ventilation filter duct, comprising a ventilation duct (1), wherein a filter plate (2) is disposed inside the ventilation duct (1), characterized in that: The filter plate (2) is rotatably installed inside the ventilation pipe (1). The filter plate (2) is connected to the output shaft of the motor (3). The motor (3) is fixedly installed on the ventilation pipe (1). A slag discharge port (5) is opened at the bottom of the ventilation pipe (1). A gauze bag (6) is provided on one side of the slag discharge port (5). A cover plate (7) is provided on the other side of the slag discharge port (5). The cover plate (7) can close the slag discharge port. The cover plate (7) is rotatably installed inside the ventilation pipe (1) and is connected to the motor (3) through a transmission mechanism. The motor (3) can drive the cover plate (7) to rotate through the transmission mechanism.
2. The air conditioning ventilation filter duct according to claim 1, characterized in that: An elastic rubber ring (20) is fixedly installed on the outer periphery of the filter plate (2).
3. An air conditioning ventilation filter duct according to claim 1, characterized in that: The transmission mechanism includes a first sprocket (30), which is fixedly mounted on the output shaft of the motor (3). Rotating rods (31) are fixedly mounted on both sides of the cover plate (7). One of the rotating rods (31) extends to the outside of the ventilation pipe (1) and is fixedly mounted on a coaxial second sprocket (32). The first sprocket (30) and the second sprocket (32) are connected by a chain (33). The transmission ratio between the second sprocket (32) and the first sprocket (30) is 0.
5.
4. An air conditioning ventilation filter duct according to claim 3, characterized in that: A rubber pad (40) is fixedly installed on the cover plate (7) corresponding to the slag discharge port (5).
5. An air conditioning ventilation filter duct according to claim 1, characterized in that: A slag discharge pipe (50) with a flange is fixedly installed at the slag discharge port (5). A gauze bag (6) is detachably installed on the slag discharge pipe (50). A pull rope (51) is movably sleeved on the gauze bag (6).
6. An air conditioning ventilation filter duct according to claim 1, characterized in that: The upper and lower sides of the cover plate (7) are arc-shaped.
Citation Information
Patent Citations
Ventilation filtering pipeline of air conditioner
CN221959026U