Anti-leakage spiral air pipe

Abstract

The utility model relates to the technical field of spiral air pipes, and particularly discloses an anti-leakage spiral air pipe which comprises a first air pipe body and a second air pipe body, a first connector is fixedly installed at one end of the first air pipe body, a second connector is fixedly installed at one end of the second air pipe body, a rubber ring is installed in the first connector through a limiting ring, and the rubber ring is connected with the first air pipe body. A second sealing ring is fixedly installed at the outer end opening of the first connector, the rotating rod can rotate by pushing the push plate, when the steel ball makes contact with the first connector, the steel ball moves towards the inner side through the compression spring, and therefore the steel ball enters the groove and is located on one side of the limiting groove, and the first air pipe body and the second air pipe body are connected together in a sealed mode. When the first air pipe body and the second air pipe body need to be opened, the push plate is pushed upwards, the steel balls are extruded, lubricating oil seeps out, the steel balls are lubricated, the steel balls can be conveniently pushed out of the limiting grooves and the grooves, and the first air pipe body and the second air pipe body can be conveniently and rapidly disassembled and assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of spiral air ducts, in particular to a leakage-proof spiral air duct. Background Art

[0002] Spiral duct is a thin-walled tube with spiral stinging seams made of metal strips and is mostly used for air supply and bulk material transportation.

[0003] Factory workshops generally use spiral ducts to exhaust harmful gases generated in the factory to the outside, and at the same time transport outdoor air to indoor areas. The factory area is large, and gas exchange within the factory is generally achieved through multiple spiral ducts.

[0004] Existing spiral air ducts are generally connected to each other through flanges, and the flanges between two adjacent spiral air ducts are fixed with screws. After the spiral air ducts are used for a long time, the screws are prone to rust, which makes the removal and replacement of the spiral air ducts time-consuming and labor-intensive, affecting the normal use of the spiral air ducts. Utility Model Content

[0005] The purpose of the utility model is to provide a leakage-proof spiral air duct to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-leakage spiral air duct, comprising: an air duct body 1 and an air duct body 2, a connector 1 is fixedly installed at one end of the air duct body 1, a connector 2 is fixedly installed at one end of the air duct body 2, a rubber ring is installed in the connector 1 through a limiting ring, a sealing ring 2 is fixedly installed at the outer end of the connector 1, a groove is provided on the outer end side wall of the connector 1, and an arc-shaped limiting groove is provided at one end of the groove;

[0007] One end of the second connector is inserted into the first connector, the outer end of the second connector is rotatably connected to a plurality of rotating rods, one end of the rotating rod is rotatably connected to a steel ball, and the steel ball is clamped on the inner wall of one end of the groove.

[0008] Preferably, the limiting ring is fixedly mounted on the inner end of the connector 1, the rubber ring is fixedly mounted on one end of the limiting ring, and a plurality of sealing rings 1 are also fixedly mounted on the inner end of the connector 1.

[0009] Preferably, a plurality of sealing grooves corresponding to sealing ring one are opened on the outer wall of one end of connector two, one end of connector two is inserted into connector one and contacts with the rubber ring, the limiting groove is located at the outer end of sealing ring one, and the side wall of the other end of connector two contacts with sealing ring two.

[0010] Preferably, a plurality of groups of rotating plates are evenly and fixedly mounted on the outer end of the second connector, with each group having two plates.

[0011] Preferably, the rotating rod is L-shaped, one end of the rotating rod is rotatably connected to a set of rotating plates via a rotating shaft, the other end of the rotating rod is provided with a circular groove, and the inner end of the circular groove is provided with an oil cavity.

[0012] Preferably, an oil passage is provided at the other end of the rotating rod, the oil passage is communicated with the oil chamber, and a sealing plug is provided at the outer end of the oil passage.

[0013] Preferably, a spring is fixedly mounted on the inner wall of one end of the oil chamber, and an arc-shaped push plate is fixedly mounted on the other end of the spring.

[0014] Preferably, the diameter of the circular groove is larger than the diameter of the steel ball. The steel ball is located in the circular groove, with one end of the steel ball in contact with the push plate and the other end in contact with the inner wall of the outer port of the circular groove.

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

[0016] The rotating rod can be rotated by pushing the push plate. When the steel ball contacts the connector, the steel ball moves inward through the compression spring, so that the steel ball enters the groove and is located on one side of the limit groove, thereby sealing the duct body one and the duct body two together. When the duct body one and the duct body two need to be opened, the push plate is pushed upward to squeeze the steel ball, and lubricating oil seeps out to lubricate the steel ball, making it easy to push the steel ball out of the limit groove and the groove, so as to quickly disassemble and assemble the duct body one and the duct body two. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic cross-sectional view of the overall structure of the utility model;

[0018] Figure 2 It is a cross-sectional schematic diagram of connector 1 and connector 2 of the utility model;

[0019] Figure 3 It is a cross-sectional schematic diagram of the rotating rod of the utility model.

[0020] In the figure: 1. Duct body 1; 2. Duct body 2; 3. Connector 1; 4. Connector 2; 5. Limit ring; 6. Rubber ring; 7. Sealing ring 1; 8. Sealing ring 2; 9. Groove; 10. Limit groove; 11. Sealing groove; 12. Rotating plate; 13. Rotating rod; 14. Push block; 15. Circular groove; 16. Oil chamber; 17. Oil channel; 18. Sealing plug; 19. Spring; 20. Push plate; 21. Steel ball. DETAILED DESCRIPTION

[0021] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 3 The utility model provides a technical solution: a leakage-proof spiral air duct, comprising: an air duct body 1 and an air duct body 2, a connector 3 is fixedly installed at one end of the air duct body 1, a connector 4 is fixedly installed at one end of the air duct body 2, a rubber ring 6 is installed in the connector 3 through a limiting ring 5, the limiting ring 5 is fixedly installed on the inner end of the connector 3, the rubber ring 6 is fixedly installed on one end of the limiting ring 5, a sealing ring 2 8 is fixedly installed at the outer port of the connector 3, a plurality of sealing rings 7 are also fixedly installed on the inner end of the connector 3, the sealing ring 7 is located between the rubber ring 6 and the sealing ring 2 8, a groove 9 is provided on the outer end side wall of the connector 3, the groove 9 is in a circular ring shape, and an arc-shaped limiting groove 10 is provided at one end of the groove 9, the limiting groove 10 is used to connect with a steel ball 21 and limit the steel ball 21.

[0023] One end of connector 2 4 is inserted into connector 1 3, and a plurality of sealing grooves 11 corresponding to sealing ring 1 7 are provided on the outer wall of one end of connector 2 4. One end of connector 2 4 is inserted into connector 1 3 and contacts with rubber ring 6, and limiting groove 10 is located at the outer end of sealing ring 1 7. The other end side wall of connector 2 4 contacts with sealing ring 2 8, and connector 1 3 and connector 2 4 are sealed by rubber ring 6, sealing ring 1 7 and sealing ring 2 8 to prevent leakage.

[0024] The outer end of the connector 4 is rotatably connected to a plurality of rotating rods 13, and the outer end of the connector 4 is evenly fixedly installed with a plurality of groups of rotating plates 12, each group being provided with two plates, and the rotating rod 13 is L-shaped, and one end of the rotating rod 13 is rotatably connected to a group of rotating plates 12 through a rotating shaft, and the other end of the rotating rod 13 is provided with a circular groove 15, and the inner end of the circular groove 15 is provided with an oil chamber 16, and the oil chamber 16 is used to store lubricating oil, and the other end of the rotating rod 13 is provided with an oil passage 17, and the oil passage 17 is connected to the oil chamber 16, and a sealing plug 18 is provided at the outer end of the oil passage 17, and the lubricating oil can be injected into the oil chamber 16 through a syringe by opening the sealing plug 18.

[0025] A steel ball 21 is rotatably connected to one end of the rotating rod 13. The diameter of the circular groove 15 is larger than the diameter of the steel ball 21. The steel ball 21 is located in the circular groove 15. A spring 19 is fixedly installed on the inner wall of one end of the oil chamber 16. An arc-shaped push plate 20 is fixedly installed on the other end of the spring 19. One end of the push plate 20 contacts the outer wall of the steel ball 21 to push the steel ball 21 toward the outer end of the circular groove 15 and contact the inner wall of the outer port of the circular groove 15 to seal it and prevent the lubricating oil from leaking.

[0026] A push block 14 is fixedly installed at one end of the rotating rod 13 away from the rotating plate 12. The rotating rod 13 can be rotated by pushing the push block 14. When the steel ball 21 contacts the connector 3, the steel ball 21 moves inward through the compression spring 19, so that the steel ball 21 enters the groove 9 and is located on one side of the limiting groove 10. Under the reaction force of the spring 19, the outer end of the steel ball 21 is located in the limiting groove 10, and the steel ball 21 contacts the inner wall of the outer port of the circular groove 15. At the same time, the inner end of the connector 4 contacts the rubber ring 6, and the other end side wall of the connector 4 contacts the sealing ring 28. The sealing ring 17 is located in the sealing groove 11. The rubber ring 6, the sealing ring 17 and the sealing ring 28 are used to seal the connector 3 and the connector 4 to prevent leakage.

[0027] When the duct body 1 and the duct body 2 need to be opened, the push block 14 is pushed upward to squeeze the steel ball 21, and the lubricating oil seeps out to lubricate the steel ball 21, making it easy to push the steel ball 21 out of the limiting groove 10 and the groove 9, so as to quickly disassemble and assemble the duct body 1 and the duct body 2.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A leak-proof spiral air duct, comprising: The air duct body 1 (1) and the air duct body 2 (2), one end of the air duct body 1 (1) is fixedly installed with a connector 1 (3), and one end of the air duct body 2 (2) is fixedly installed with a connector 2 (4), characterized in that: a rubber ring (6) is installed in the connector 1 (3) through a limiting ring (5), a sealing ring 2 (8) is fixedly installed at the outer end of the connector 1 (3), a groove (9) is opened on the outer end side wall of the connector 1 (3), and an arc-shaped limiting groove (10) is opened at one end of the groove (9); One end of the second connector (4) is inserted into the first connector (3), the outer end of the second connector (4) is rotatably connected to a plurality of rotating rods (13), one end of the rotating rod (13) is rotatably connected to a steel ball (21), and the steel ball (21) is clamped on the inner wall of one end of the groove (9).

2. The anti-leakage spiral air duct according to claim 1, characterized in that: The limiting ring (5) is fixedly mounted on the inner end of the connector (3), the rubber ring (6) is fixedly mounted on one end of the limiting ring (5), and a plurality of sealing rings (7) are also fixedly mounted on the inner end of the connector (3).

3. The anti-leakage spiral air duct according to claim 2, characterized in that: A plurality of sealing grooves (11) corresponding to the sealing ring (7) are provided on the outer wall of one end of the connector (4); one end of the connector (4) is inserted into the connector (3) and contacts the rubber ring (6); the limiting groove (10) is located at the outer end of the sealing ring (7); and the side wall of the other end of the connector (4) contacts the sealing ring (8).

4. The anti-leakage spiral air duct according to claim 3, characterized in that: The outer end of the second connector (4) is evenly and fixedly mounted with a plurality of groups of rotating plates (12), each group being provided with two plates.

5. The anti-leakage spiral air duct according to claim 4, characterized in that: The rotating rod (13) is L-shaped, one end of the rotating rod (13) is rotatably connected to a set of rotating plates (12) via a rotating shaft, the other end of the rotating rod (13) is provided with a circular groove (15), and the inner end of the circular groove (15) is provided with an oil chamber (16).

6. The anti-leakage spiral air duct according to claim 5, characterized in that: The other end of the rotating rod (13) is provided with an oil passage (17), the oil passage (17) is communicated with the oil chamber (16), and a sealing plug (18) is provided at the outer end of the oil passage (17).

7. The anti-leakage spiral air duct according to claim 6, characterized in that: A spring (19) is fixedly mounted on the inner wall of one end of the oil chamber (16), and an arc-shaped push plate (20) is fixedly mounted on the other end of the spring (19).

8. The anti-leakage spiral air duct according to claim 7, characterized in that: The diameter of the circular groove (15) is greater than the diameter of the steel ball (21). The steel ball (21) is located in the circular groove (15) and one end of the steel ball (21) contacts the push plate (20) and the other end of the steel ball (21) contacts the inner wall of the outer end of the circular groove (15).

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