Air-volume-adjustable central air-conditioning ventilating duct

Abstract

The utility model discloses a central air-conditioning ventilating duct capable of adjusting air volume, and belongs to the technical field of ventilating ducts. In order to solve the problem that an existing product is complex in structure, the following technical scheme is provided that the pipeline comprises a pipeline body, flanges are arranged at the two ends of the pipeline body and used for connecting a plurality of pipeline bodies, and an adjusting mechanism is arranged in the pipeline body. The adjusting mechanism is arranged in the pipeline, the ventilation quantity of the pipeline can be adjusted according to the actual use condition, the practicability of the pipeline is improved to a great extent, dust and impurities in air can be filtered through the filter screen, dust is prevented from entering the central air conditioner, the good protection effect is achieved, and the service life of the pipeline is prolonged. Secondly, by arranging a movable mechanism, the filter screen can be movably cleaned, dust is prevented from being accumulated on the filter screen to cause pipeline blockage, it is guaranteed that the pipeline always keeps a good ventilation effect, and meanwhile by arranging a collecting box, dust on the filter screen can be collected in a centralized mode.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation ducts, in particular to a central air-conditioning ventilation duct with adjustable air volume. Background Technique

[0002] The central air conditioner is composed of one or more cold and heat source systems and multiple air conditioning systems, and is a process of using artificial means to adjust and control parameters such as the temperature, humidity, cleanliness, and speed of the indoor air in buildings and structures. The central air conditioner needs to use ventilation ducts to conduct air flow. There are many devices in the ventilation and air conditioning system, such as water pumps, fans, and refrigeration systems. The existing central air-conditioning ventilation ducts are installed with filters to filter dust in the air. However, during long-term use, the filters will be blocked by dust and impurities.

[0003] To solve the above problems, a prior patent (publication number: CN220186993U) provides a central air-conditioning ventilation and filtering duct. By setting a brush for cleaning the filter screen, the filter screen can be automatically cleaned to avoid blockage of the filter screen. The cooperation of the baffle and the torsion spring in the dust blocking mechanism can prevent the air conditioner from blowing out the dust in the ash bin. The setting of the ejector rod can put the dust swept off the filter screen into the ash bin for convenient unified treatment.

[0004] However, during the use of the ventilation duct in the above-mentioned published document, the air volume of the ventilation duct cannot be adjusted according to the actual use situation, which reduces the practicality of the duct to a certain extent.

[0005] Therefore, the technical personnel in this field provide a central air-conditioning ventilation duct with adjustable air volume to solve the problems raised in the above background technique. Content of the Utility Model

[0006] In order to overcome the above-mentioned defects of the prior art, the embodiment of the utility model provides a central air-conditioning ventilation duct with adjustable air volume. By setting an adjusting mechanism inside the duct, the air volume of the duct can be adjusted according to the actual use situation, which greatly improves the practicality of the duct. Secondly, by setting a filter screen, dust and sundries in the air can be filtered to prevent dust from entering the central air conditioner through the duct, playing a good protective role. Secondly, by setting a movable mechanism and cooperating with the adjusting mechanism, the filter screen can be moved and cleaned to prevent dust from accumulating on the filter screen and causing blockage of the duct, ensuring that the duct always maintains a good ventilation effect. At the same time, by setting a collection box, the dust on the filter screen can be centrally collected for convenient subsequent treatment, so as to solve the problems raised in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] An adjustable air volume central air - conditioning ventilation duct, including a duct main body. Flanges are provided at both ends of the duct main body for connecting multiple duct main bodies. An adjusting mechanism is arranged inside the duct main body. The adjusting mechanism includes a circular plate fixedly connected inside the duct main body. The diameter of the circular plate is the same as the inner diameter of the duct main body. Four placing grooves are opened on the circular plate. Connection frames are arranged inside the four placing grooves, and the two are connected by a moving mechanism. A filter net is connected to the connection frame.

[0009] As a further scheme of the present utility model, the adjusting mechanism further includes a driving motor fixedly connected inside the duct main body. A shielding plate is connected to the output shaft of the driving motor, and the shielding plate can completely block the placing groove.

[0010] As a further scheme of the present utility model, an embedding groove is opened on the placing groove. The moving mechanism includes a limiting plate slidably connected inside the embedding groove. Both sides of the limiting plate are fixedly connected to moving columns. The moving columns penetrate into the interior of the circular plate. Compression springs are sleeved on the moving columns. The limiting plate is fixedly connected to the connection frame.

[0011] As a further scheme of the present utility model, eight groups of the moving mechanisms are provided, and every two groups are used to connect a group of placing grooves and connection frames.

[0012] As a further scheme of the present utility model, a connecting rod is fixedly connected inside the connection frame. A first arc - shaped strip is fixedly connected to the connecting rod. A second arc - shaped strip is fixedly connected to the rear end of the shielding plate. When the second arc - shaped strip moves, it will contact the first arc - shaped strip.

[0013] As a further scheme of the present utility model, a collection box is connected to the outside of the duct main body, and the collection box is communicated with the internal space of the duct main body.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] By arranging an adjusting mechanism inside the duct, the ventilation volume of the duct can be adjusted according to the actual usage situation, greatly improving the practicability of the duct. Secondly, by arranging a filter net, dust and sundries in the air can be filtered to prevent dust from entering the central air - conditioning interior through the duct, playing a good protective role. Secondly, by arranging a moving mechanism and cooperating with the adjusting mechanism, the filter net can be moved and cleaned to prevent dust from accumulating on the filter net and causing duct blockage, ensuring that the duct always maintains a good ventilation effect. At the same time, by arranging a collection box, the dust on the filter net can be centrally collected for convenient subsequent treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1Schematic three-dimensional structure diagram of a central air-conditioning ventilation duct with adjustable air volume;

[0017] Figure 2 It is Figure 1 Schematic three-dimensional structure diagram of the circular plate part;

[0018] Figure 3 It is Figure 2 Schematic exploded three-dimensional structure diagram;

[0019] Figure 4 It is Figure 3 Schematic enlarged structure diagram at position A of

[0020] In the figure: 1, duct main body; 2, circular plate; 3, placement groove; 4, connecting frame; 5, filter net; 6, driving motor; 7, baffle plate; 8, connecting rod; 9, first arc-shaped strip; 10, second arc-shaped strip; 11, embedding groove; 12, limiting plate; 13, movable column; 14, compression spring; 15, collection box; 16, flange. Specific implementation manner

[0021] Please refer to Figures 1 to 4 , in the embodiment of the present utility model, a central air-conditioning ventilation duct with adjustable air volume includes a duct main body 1. Flanges are provided at both ends of the duct main body 1 for quick connection between two duct main bodies 1. A circular plate 2 is fixedly connected inside the duct main body 1. The diameter of the circular plate 2 is exactly the same as the inner diameter of the duct main body 1. Four placement grooves 3 are opened on the circular plate 2. Inside each placement groove 3, a connecting frame 4 with a filter net 5 is provided. While ensuring the passage of natural wind, the filter net 5 can also isolate fine dust inside it, effectively preventing dust from entering the central air-conditioning and playing a good protective role.

[0022] A driving motor 6 is also connected inside the duct main body 1. A baffle plate 7 is connected to the output shaft of the driving motor 6. When the baffle plate 7 is in the release position, it can completely close the four placement grooves 3 on the circular plate 2. When the driving motor 6 works, it can drive the baffle plate 7 to rotate synchronously, and the shielding area of the baffle plate 7 for the placement grooves 3 can be adjusted, thereby realizing the adjustment of the air volume.

[0023] An embedding groove 11 is formed in the placing groove 3. A limiting plate 12 is slidably connected inside the embedding groove 11. The limiting plate 12 is connected to the connecting frame 4. Through the limiting plate 12, the connecting frame 4 can move up and down along the embedding groove 11. Moving columns 13 are connected to the front and rear ends of the limiting plate 12. The moving columns 13 penetrate into the inside of the circular plate 2, and compression springs 14 are sleeved on their outer parts. When the limiting plate 12 moves, the moving columns 13 can limit its movement to ensure its stability during movement. When the limiting plate 12 moves, it will squeeze the compression springs 14. When the limiting plate 12 is not externally squeezed, the limiting plate 12 can return to its original position under the action of the compression springs 14.

[0024] A connecting rod 8 is connected inside the connecting frame 4. A first arc-shaped strip 9 is fixedly connected to the connecting rod 8. A second arc-shaped strip 10 is fixedly connected to the rear end of the shielding plate 7. When the shielding plate 7 rotates, it will drive the second arc-shaped strip 10 to rotate synchronously, and then push the first arc-shaped strip 9 to move, so as to realize the reciprocating movement of the connecting frame 4. When the connecting frame 4 reciprocates, the dust on the filter net 5 can be shaken off to prevent the dust from blocking the filter net 5 and affecting the ventilation of the pipeline main body 1.

[0025] The lower end of the pipeline main body 1 is connected to a collection box 15 by screws. The space between the pipeline main body 1 and the collection box 15 is connected. The dust on the filter net 5 will fall into the collection box 15, which is convenient for the staff to process the dust later.

[0026] The working principle of the present utility model is as follows: When it is necessary to adjust the ventilation volume of the pipeline device, at this time, the driving motor 6 is controlled to start working through an external remote control. While the driving motor 6 is working, it will drive the shielding plate 7 to rotate. When the shielding plate 7 rotates, the shielding area of the placing groove 3 on the circular plate 2 will change accordingly, so as to realize the adjustment of the ventilation volume of the pipeline main body 1, which is very convenient. Secondly, a connecting frame 4 with a filter net 5 is arranged inside the placing groove 3. The filter net 5 can filter dust and sundries in the wind to prevent dust from entering the central air conditioner through the pipeline, playing a good protective role. To avoid the dust accumulating on the filter net 5 and affecting the ventilation effect of the pipeline, when the driving motor 6 drives the shielding plate 7 to rotate, it can drive the second arc-shaped strip 10 at the rear to rotate synchronously. When the second arc-shaped strip 10 rotates, it will push the first arc-shaped strip 9 to move, so as to drive the connecting frame 4 to move through the connecting rod 8. When the connecting frame 4 reciprocates, it will squeeze the compression springs 14 through the limiting plate 12. When the first arc-shaped strip 9 is separated from the second arc-shaped strip 10, at this time, the connecting frame 4 will return to its original position under the action of the compression springs 14, so as to realize the reciprocating movement of the connecting frame 4 inside the embedding groove 11, shake off the dust on the filter net 5, prevent the dust from accumulating and blocking the filter net 5, and the fallen dust enters the lower collection box 15 for centralized treatment.

[0027] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A central air conditioning ventilation duct with adjustable air volume, comprising a duct body (1), both ends of the duct body (1) are provided with flanges (16) for connecting multiple duct bodies (1), characterized in that: An adjusting mechanism is arranged inside the pipeline body (1), and the adjusting mechanism comprises a circular plate (2) fixedly connected to the inside of the pipeline body (1), the diameter of the circular plate (2) being consistent with the inner diameter of the pipeline body (1), the circular plate (2) being provided with four placement grooves (3), the four placement grooves (3) being provided with connection frames (4) inside, and the two are connected via a movable mechanism, and the connection frame (4) is connected to a filter screen (5).

2. The central air conditioning ventilation duct with adjustable air volume according to claim 1, characterized in that: The adjustment mechanism also includes a driving motor (6) fixedly connected to the inside of the pipeline body (1), and a shielding plate (7) is connected to the output shaft of the driving motor (6), and the shielding plate (7) can completely shield the placement groove (3).

3. The central air conditioning ventilation duct with adjustable air volume according to claim 2, characterized in that: The placement groove (3) is provided with an embedding groove (11), and the movable mechanism comprises a limit plate (12) slidably connected to the inside of the embedding groove (11), both sides of the limit plate (12) are fixedly connected to a movable column (13), the movable column (13) penetrates into the inside of the circular plate (2), a compression spring (14) is sleeved on the movable column (13), and the limit plate (12) is fixedly connected to the connection frame (4).

4. The central air conditioning ventilation duct with adjustable air volume according to claim 2, characterized in that: The movable mechanism is provided in eight groups, and every two groups are used to connect a group of placement slots (3) and a connection frame (4).

5. The central air conditioning ventilation duct with adjustable air volume according to claim 4, characterized in that: A connecting rod (8) is fixedly connected inside the connecting frame (4), a first arc-shaped strip (9) is fixedly connected to the connecting rod (8), a rear end of the shielding plate (7) is fixedly connected to a second arc-shaped strip (10), and the second arc-shaped strip (10) contacts the first arc-shaped strip (9) when the second arc-shaped strip (10) moves.

6. A central air conditioning ventilation duct with adjustable air volume according to claim 5, characterized in that: The outside of the pipeline body (1) is connected to a collecting box (15), and the collecting box (15) is in communication with the internal space of the pipeline body (1).

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