Air duct outlet pressure adjusting device

Abstract

The utility model discloses a kind of air pipe air outlet pressure adjusting devices, including pipe body, the one end of pipe body is equipped with butt joint, the one end of pipe body away from butt joint is connected with mounting head, the surface of mounting head is equipped with butt joint groove, the inner wall of mounting head is equipped with first valve plate, first valve plate is equipped with first perforation, the one end of mounting head away from pipe body is connected with adjusting head.The air pipe air outlet pressure adjusting device, driving gear can be rotated on mounting head by gear block to push adjusting head, adjusting head drives second valve plate to rotate synchronously, second perforation on second valve plate will gradually stagger with first perforation on first valve plate at this time, only the part of second perforation and first perforation can blow out at this time, the caliber of pipe body air outlet starts to change, so as to adjust the air pressure of blowout, can greatly reduce the air volume of compressed air, can save compressed air cost greatly.

Description

Technical Field

[0001] This utility model relates to the field of wind-powered purging technology, specifically to a pressure adjustment device for the air outlet of a duct. Background Technology

[0002] During the electrolytic aluminum production process, the anodes of the electrolytic cells need to be replaced and the cells need to be kept warm every day. During this process, material will fall into the cells, around the cells, and on the large surfaces, which needs to be cleaned up in time with brooms and air ducts.

[0003] When using existing ducts to blow away falling materials, it is inconvenient to adjust the size of the air outlet opening, making it difficult to adjust the pressure at the duct outlet. This results in a significant waste of compressed air volume and a substantial increase in the cost of compressed air.

[0004] To address the aforementioned issues, there is an urgent need for innovative design based on the existing adjustment device. Summary of the Invention

[0005] The purpose of this utility model is to provide a duct outlet pressure adjustment device to solve the problem mentioned in the background art that when the existing duct is used to blow down material, it is inconvenient to adjust the opening size of the air outlet, which makes it difficult to adjust the pressure of the duct outlet, thus greatly wasting the compressed air volume and significantly increasing the cost of compressed air.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a duct outlet pressure adjustment device, comprising a pipe body, a connector installed at one end of the pipe body, and an installation head connected to the other end of the pipe body. The surface of the installation head has a mating groove, and a first valve plate is installed on the inner wall of the installation head. A first through hole is formed on the first valve plate. An adjustment head is connected to one side of the installation head. A second valve plate is fixed on the inner wall of the adjustment head. A second through hole is formed on the second valve plate, matching the first through hole. A toothed block is provided on the outer surface of the adjustment head, and a drive gear is provided on the outer side of the adjustment head. The drive gear meshes with the toothed block on the outer surface of the adjustment head, and an adjustment rod is installed on the drive gear.

[0007] Preferably, the mounting head and the pipe body are connected by welding.

[0008] Preferably, a docking ring is fixedly installed on the inner wall of the adjusting head, the docking ring is located in the docking groove, and the adjusting head is rotatably connected to the mounting head through the docking ring and the docking groove.

[0009] Preferably, the adjusting head is further provided with a sealing ring, which is located between the mounting head and the adjusting head.

[0010] Preferably, the first perforation on the first valve plate is aligned with the second perforation on the second valve plate.

[0011] Preferably, the toothed blocks are distributed at equal angles along the edge of the adjusting head.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The air outlet pressure adjustment device of this air duct drives the drive gear to rotate by turning the adjustment rod. The drive gear pushes the adjustment head to rotate on the mounting head through the tooth block. The adjustment head drives the second valve plate to rotate synchronously, so that the second perforation on the second valve plate gradually rotates and is offset from the first perforation on the first valve plate. Only the part where the second perforation and the first perforation overlap can be aired. At this time, the diameter of the air outlet of the duct body begins to change, thereby adjusting the air pressure and reducing the air volume of compressed air, which can save a lot of compressed air costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the mounting head structure of this utility model; Figure 3 This is a schematic diagram of the adjusting head structure of this utility model; Figure 4 This is a schematic cross-sectional view of the connection between the mounting head and the adjusting head of this utility model; Figure 5 This utility model Figure 4 A magnified structural diagram at point A in the diagram.

[0014] In the diagram: 1. Pipe body; 2. Connector; 3. Mounting head; 4. Connecting groove; 5. First valve plate; 6. First perforation; 7. Adjusting head; 8. Connecting ring; 9. Sealing ring; 10. Second valve plate; 11. Second perforation; 12. Gear block; 13. Drive gear; 14. Adjusting rod. Detailed Implementation

[0015] 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.

[0016] Please see Figures 1-5This utility model provides a technical solution: a duct outlet pressure adjustment device, including a pipe body 1, a connector 2 installed at one end of the pipe body 1, and an installation head 3 connected to the other end of the pipe body 1. The surface of the installation head 3 is provided with a mating groove 4. A first valve plate 5 is installed on the inner wall of the installation head 3. A first through hole 6 is provided on the first valve plate 5. An adjustment head 7 is connected to one side of the installation head 3. A second valve plate 10 is fixed on the inner wall of the adjustment head 7. A second through hole 11 is provided on the second valve plate 10. The second through hole 11 matches the first through hole 6. A toothed block 12 is provided on the outer surface of the adjustment head 7. A drive gear 13 is provided on the outer side of the adjustment head 7. The drive gear 13 meshes with the toothed block 12 on the outer surface of the adjustment head 7. An adjustment rod 14 is installed on the drive gear 13.

[0017] like Figure 1 , Figure 2 As shown, the mounting head 3 is welded to the pipe body 1, which improves the stability of the mounting head 3 when installed on the pipe body 1.

[0018] like Figures 3-5 As shown, a docking ring 8 is fixedly installed on the inner wall of the adjusting head 7. The docking ring 8 is located in the docking groove 4. The adjusting head 7 is rotatably connected to the mounting head 3 through the docking ring 8 and the docking groove 4, which facilitates the adjustment head 7 to rotate on the mounting head 3 through the docking ring 8 and the docking groove 4.

[0019] The adjusting head 7 is also equipped with a sealing ring 9, which is located between the mounting head 3 and the adjusting head 7, and can prevent wind from leaking out from the gap between the mounting head 3 and the adjusting head 7.

[0020] In this embodiment, the first perforation 6 on the first valve plate 5 and the second perforation 11 on the second valve plate 10 are aligned with each other, which is conducive to the wind passing through the first perforation 6 and the second perforation 11 to blow out, thereby achieving the purging effect.

[0021] The toothed blocks 12 are evenly distributed at the edge of the adjusting head 7. When the drive gear 13 rotates, the drive gear 13 can push the adjusting head 7 to rotate synchronously through the toothed blocks 12.

[0022] Working principle: When using this duct outlet pressure adjustment device, if... Figures 1-5As shown, firstly, the pipe body 1 is screwed onto the outlet of the air pipe via the connector 2. The air in the air pipe can be blown out through the pipe body 1 to clean the falling material. When it is necessary to adjust the air pressure, the adjusting rod 14 is turned. The adjusting rod 14 will drive the drive gear 13 to rotate, and the drive gear 13 can push the adjusting head 7 to rotate through the tooth block 12. At this time, the adjusting head 7 rotates on the mounting head 3 through the docking ring 8 and the docking groove 4. The adjusting head 7 drives the second valve plate 10 to rotate synchronously. At this time, the second perforation 11 on the second valve plate 10 will gradually rotate and offset from the first perforation 6 on the first valve plate 5. Only the overlapping part of the second perforation 11 and the first perforation 6 can be aired out. At this time, the diameter of the exhaust port of the pipe body 1 begins to change, thereby adjusting the air pressure and reducing the compressed air volume, which can save a lot of compressed air costs.

[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pressure regulating device for an air duct outlet, comprising a duct body (1), characterized in that: One end of the tube (1) is equipped with a connector (2), and the other end of the tube (1) is connected to an installation head (3). The surface of the installation head (3) is provided with a mating groove (4). A first valve plate (5) is installed on the inner wall of the installation head (3). A first through hole (6) is provided on the first valve plate (5). An adjustment head (7) is connected to one side of the installation head (3). A second valve plate (10) is fixed on the inner wall of the adjustment head (7). A second through hole (11) is provided on the second valve plate (10). The second through hole (11) matches the first through hole (6). A toothed block (12) is provided on the outer surface of the adjustment head (7). A drive gear (13) is provided on the outer side of the adjustment head (7). The drive gear (13) meshes with the toothed block (12) on the outer surface of the adjustment head (7). An adjustment rod (14) is installed on the drive gear (13).

2. The duct outlet pressure adjustment device according to claim 1, characterized in that: The mounting head (3) and the pipe body (1) are connected by welding.

3. The duct outlet pressure adjustment device according to claim 1, characterized in that: A docking ring (8) is fixedly installed on the inner wall of the adjusting head (7). The docking ring (8) is located in the docking groove (4). The adjusting head (7) is rotatably connected to the mounting head (3) through the docking ring (8) and the docking groove (4).

4. The duct outlet pressure adjustment device according to claim 3, characterized in that: The adjusting head (7) is also provided with a sealing ring (9), which is located between the mounting head (3) and the adjusting head (7).

5. The duct outlet pressure adjustment device according to claim 1, characterized in that: The first perforation (6) on the first valve plate (5) is aligned with the second perforation (11) on the second valve plate (10).

6. The duct outlet pressure adjustment device according to claim 1, characterized in that: The toothed blocks (12) are evenly distributed at the edge of the adjusting head (7).

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