Loop joint with good sealing performance

Abstract

The utility model discloses a loop joint with good sealing performance, and relates to the technical field of loop joints. The movable joint comprises a first movable joint, one end of the first movable joint is in threaded connection with a fixing nut, the end, away from the first movable joint, of the fixing nut is in threaded connection with a second movable joint, fixing rings are fixedly connected to the first movable joint and the second movable joint, and sealing pieces are installed on the opposite faces of the first movable joint and the second movable joint. The fixing nut is provided with an arc-shaped block, an arc-shaped groove, a sealing ring and a sealing groove, when the second movable joint is completely screwed into the fixing nut, the arc-shaped block and the arc-shaped groove can be tightly attached, meanwhile, the sealing ring can be inserted into the sealing groove, and the sealing ring and the sealing groove which are made of soft silica gel are matched with each other; the sealing performance between the movable joint I and the movable joint II can be greatly improved, so that a medium conveyed by a pipeline is more difficult to leak from the joint in the conveying process, the environment and the safe operation of equipment are protected, and the energy waste and the cost increase caused by leakage are reduced.

Description

Technical Field

[0001] This application relates to the technical field of loose flange joints, and particularly to a loose flange joint with good sealing performance. Background Art

[0002] A loose flange joint, also known as a union or a yoke, is a commonly used pipe fitting that facilitates installation and disassembly. Existing loose flange joints mainly consist of a nut and two pipe fittings connected by the nut.

[0003] When an existing loose flange joint is in use, usually the pipe is first inserted into the two joints, then the nut is sleeved on one of the joints, and then the other joint is taken out and connected to the nut to complete the overall installation. The loose flange joint after installation can make the pipe connection more convenient.

[0004] However, in actual application, the sealing between the joint, the nut and the pipe mainly depends on the rubber sealing ring between the joint and the nut for tight fitting. However, during long-term use, the rubber sealing ring is prone to problems such as aging and damage, greatly reducing the sealing performance at the joint connection and resulting in a leakage risk. Therefore, this application provides a loose flange joint with good sealing performance. Utility Model Content

[0005] The purpose of this application is to solve the problem that during long-term use, the rubber sealing ring is prone to problems such as aging and damage, greatly reducing the sealing performance at the joint connection and resulting in a leakage risk. This application provides a loose flange joint with good sealing performance.

[0006] Specifically, this application adopts the following technical solutions to achieve the above purpose:

[0007] A loose flange joint with good sealing performance includes a first loose flange joint. One end of the first loose flange joint is threadedly connected to a fixed nut, and the end of the fixed nut away from the first loose flange joint is threadedly connected to a second loose flange joint. Fixed rings are fixedly connected to both the first loose flange joint and the second loose flange joint. A sealing member is installed on the opposite surfaces of the first loose flange joint and the second loose flange joint. Anti-rust layers are provided on both the first loose flange joint and the second loose flange joint.

[0008] By adopting the above technical solution, first insert one end of two pipes into the inside of union one and union two respectively. Then take out the fixing nut, first screw the fixing nut onto union one, and then take out union two and screw one end of union two into the fixing nut. When union two is completely screwed into the fixing nut, the seals will be connected to each other, thereby greatly improving the sealing performance between union one and union two through the seals, making it more difficult for the medium transmitted by the pipes to leak from the joint during transmission, contributing to environmental protection and the safe operation of equipment, and reducing energy waste and cost increase caused by leakage.

[0009] Furthermore, rubber pads are fixedly connected to the opposite surfaces of the two fixing rings.

[0010] By adopting the above technical solution, through the rubber pads on union one and union two, the tiny gaps between union one, the fixing nut and union two can be filled, preventing the leakage of media such as liquids or gases.

[0011] Furthermore, an arc-shaped block is fixedly connected to one end of union two, and an arc-shaped groove is formed at one end of union one. The arc-shaped block and the arc-shaped groove can be closely fitted and have the same shape and size.

[0012] By adopting the above technical solution, when union two is completely screwed into the fixing nut, the arc-shaped block at one end of union two will be closely fitted with the arc-shaped groove at one end of union one, thereby enabling the opposite surfaces of union one and union two to maintain tightness.

[0013] Furthermore, the seal includes a sealing ring fixedly connected to one end of union one. A sealing groove is formed at one end of union two. The sealing ring can be slidably connected inside the sealing groove. The sealing ring is made of soft silicone.

[0014] By adopting the above technical solution, through the mutual cooperation of the sealing ring made of soft silicone and the sealing groove, the sealing performance between union one and union two can be greatly improved, making it more difficult for the medium transmitted by the pipes to leak from the joint during transmission, contributing to environmental protection and the safe operation of equipment.

[0015] Furthermore, internal thread grooves are provided on the inner walls of union one and union two.

[0016] By adopting the above technical solution, through the internal thread grooves provided on the inner walls, the sealing performance between the pipes and union one and union two can be increased when they are connected, and the friction between them can also be increased.

[0017] Furthermore, a plurality of anti-slip convex blocks are uniformly fixedly connected to the outer wall of the fixing nut.

[0018] By adopting the above technical solution, the anti-slip bumps provided on the outer wall of the fixing nut can increase the friction between the tool and the fixing nut when turning the fixing nut, making it more convenient and labor-saving to complete the connection.

[0019] Further, the rust-proof layer is rust-proof paint.

[0020] By adopting the above technical solution, the rust-proof layer provided can effectively improve the rust-proof ability of the first union joint and the second union joint, reducing the occurrence of oxidation and corrosion.

[0021] Further, both the first union joint and the second union joint are made of aluminum alloy, and the fixing nut is also made of aluminum alloy.

[0022] By adopting the above technical solution, the first union joint, the second union joint and the fixing nut made of aluminum alloy can enable the three to have good corrosion resistance and stamping resistance, greatly improving the overall practicality.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. In the present application, an arc-shaped block, an arc-shaped groove, a sealing ring and a sealing groove are provided. When the second union joint is completely screwed into the fixing nut, the arc-shaped block will be in close fit with the arc-shaped groove, and at the same time, the sealing ring will be inserted into the sealing groove. Through the mutual cooperation of the sealing ring made of soft silicone and the sealing groove, the sealing performance between the first union joint and the second union joint can be greatly improved, making it more difficult for the medium transmitted by the pipeline to leak from the joint during the transmission process, which helps to protect the environment and the safe operation of the equipment, and reduces the energy waste and cost increase caused by leakage.

[0025] 2. In the present application, an internal thread groove and anti-slip bumps are provided. The internal thread groove provided on the inner wall can increase the sealing performance between the pipeline and the first union joint and the second union joint when they are connected, and can also increase the friction between them, making the connection more firm. When subjected to external forces, the thread groove can disperse the stress, improving the bearing capacity and anti-fatigue performance of the first union joint and the second union joint. The anti-slip bumps provided on the outer wall of the fixing nut can increase the friction between the tool and the fixing nut when turning the fixing nut, making it more convenient and labor-saving to complete the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a three-dimensional structural schematic diagram of the main body of the device in the present application.

[0027] Figure 2 is an exploded view of the main body of the device in the present application.

[0028] Figure 3 is a three-dimensional structural schematic diagram of the first union joint in the present application.

[0029] Figure 4 It is a schematic three-dimensional structure diagram of the union joint two in the present application.

[0030] Explanation of reference numerals:

[0031] 1. Union joint one; 2. Fixed nut; 3. Union joint two; 4. Fixed ring; 5. Rubber gasket; 6. Arc-shaped block; 7. Arc-shaped groove; 8. Sealing ring; 9. Sealing groove; 10. Internal thread groove; 11. Anti-slip convex block; 12. Antirust layer. Detailed implementation manners

[0032] The following further elaborates on the present application in conjunction with the attached Figures 1-4 drawings.

[0033] The embodiment of the present application discloses a loose flange joint with good sealing performance.

[0034] Referring to Figure 2 , Figure 3 and Figure 4 , a loose flange joint with good sealing performance includes a union joint one 1. One end of the union joint one 1 is threadedly connected with a fixed nut 2. The end of the fixed nut 2 away from the union joint one 1 is threadedly connected with a union joint two 3. Fixed rings 4 are fixedly connected to both the union joint one 1 and the union joint two 3. Sealing members are installed on the opposite surfaces of the union joint one 1 and the union joint two 3. Antirust layers 12 are provided on both the union joint one 1 and the union joint two 3. Rubber gaskets 5 are fixedly connected to the opposite surfaces of the two fixed rings 4;

[0035] Secondly, an arc-shaped block 6 is fixedly connected to one end of the union joint two 3. An arc-shaped groove 7 is formed at one end of the union joint one 1. The arc-shaped block 6 and the arc-shaped groove 7 can be closely fitted and have the same shape and size. The sealing member includes a sealing ring 8 fixedly connected to one end of the union joint one 1. A sealing groove 9 is formed at one end of the union joint two 3. The sealing ring 8 can be slidably connected inside the sealing groove 9. The sealing ring 8 is made of soft silicone.

[0036] During use, first insert one end of two pipes into the interiors of union one 1 and union two 3 respectively. Subsequently, take out the fixing nut 2. First, screw the fixing nut 2 onto union one 1. When the fixing nut 2 is completely screwed onto union one 1, one side of the fixing nut 2 will tightly squeeze the rubber gasket 5 on union one 1. The rubber gasket 5 on union one 1 can play a role in buffering and shock absorption, alleviating vibration and preventing union one 1 from loosening. Subsequently, take out union two 3 and screw one end of union two 3 into the fixing nut 2 until the rubber gasket 5 on union two 3 is in close contact with one side of the fixing nut 2. Through the rubber gaskets 5 on union one 1 and union two 3, the tiny gaps between union one 1, the fixing nut 2, and union two 3 can be filled, preventing leakage of media such as liquid or gas, thereby forming an effective sealing layer between them and ensuring the sealing performance between union one 1, the fixing nut 2, and union two 3. When union two 3 is completely screwed into the interior of the fixing nut 2, the arc-shaped block 6 at one end of union two 3 will be in close contact with the arc-shaped groove 7 at one end of union one 1, making the opposite sides of union one 1 and union two 3 able to maintain tightness. At the same time, the sealing ring 8 at one end of union one 1 will be inserted into the sealing groove 9 at one end of union two 3. Through the mutual cooperation of the sealing ring 8 made of soft silicone material and the sealing groove 9, the sealing performance between union one 1 and union two 3 can be greatly improved, making it more difficult for the media transmitted by the pipeline to leak from the joint during transmission, contributing to environmental protection and the safe operation of equipment, and reducing energy waste and cost increase caused by leakage.

[0037] Refer to Figure 3 and Figure 4 , internal thread grooves 10 are provided on the inner walls of both union one 1 and union two 3.

[0038] During use, through the internal thread grooves 10 provided on the inner walls, when connecting the pipeline with union one 1 and union two 3, the sealing performance between the two can be increased, and the friction force between the two can also be increased, making the connection more firm. When subjected to external forces, the thread grooves can disperse stress, improving the load-bearing capacity and fatigue resistance of union one 1 and union two 3.

[0039] Refer to Figure 1 and Figure 2 , a plurality of anti-slip protrusions 11 are uniformly and fixedly connected to the outer wall of the fixing nut 2.

[0040] During use, through the anti-slip protrusions 11 provided on the outer wall of the fixing nut 2, the friction force between the tool and the fixing nut 2 can be increased when screwing the fixing nut 2, making it more convenient and labor-saving to complete the connection.

[0041] Refer to Figure 1 and Figure 2, the rust prevention layer 12 is anti-rust paint. The first union 1 and the second union 3 are both made of aluminum alloy, and the fixing nut 2 is also made of aluminum alloy.

[0042] During use, the provided rust prevention layer 12 can effectively improve the rust prevention ability of the first union 1 and the second union 3, reduce the occurrence of oxidation and corrosion. At the same time, the first union 1, the second union 3 and the fixing nut 2 made of aluminum alloy enable the three to have good corrosion resistance and stamping resistance, greatly improving the overall practicality.

[0043] The implementation principle of a loose flange joint with good sealing performance in this embodiment is as follows: When in use, first insert one end of two pipes into the interiors of loose flange one 1 and loose flange two 3 respectively. The internal thread grooves 10 provided on the inner walls can increase the sealing performance between the pipes and loose flange one 1 and loose flange two 3 when they are connected, and can also increase the friction force between them, making the connection more firm. When subjected to external forces, the thread grooves can disperse stress, improving the load-bearing capacity and anti-fatigue performance of loose flange one 1 and loose flange two 3. Subsequently, take out the fixing nut 2. First, screw the fixing nut 2 onto loose flange one 1. The anti-slip bumps 11 provided on the outer wall of the fixing nut 2 can increase the friction force between the tool and the fixing nut 2 when screwing the fixing nut 2, making it more convenient and labor-saving to complete the connection. When the fixing nut 2 is completely screwed onto loose flange one 1, one side of the fixing nut 2 will tightly squeeze the rubber pad 5 on loose flange one 1. The rubber pad 5 on loose flange one 1 can play a role in buffering and shock absorption, alleviating vibration and preventing loose flange one 1 from loosening. Subsequently, take out loose flange two 3 and screw one end of loose flange two 3 into the fixing nut 2 until the rubber pad 5 on loose flange two 3 is in close contact with one side of the fixing nut 2. The rubber pads 5 on loose flange one 1 and loose flange two 3 can fill the tiny gaps between loose flange one 1, the fixing nut 2, and loose flange two 3, preventing media such as liquids or gases from leaking, thereby forming an effective sealing layer between them and ensuring the sealing performance between loose flange one 1, the fixing nut 2, and loose flange two 3. When loose flange two 3 is completely screwed into the interior of the fixing nut 2, the arc-shaped block 6 at one end of loose flange two 3 will be in close contact with the arc-shaped groove 7 at one end of loose flange one 1, making the opposite sides of loose flange one 1 and loose flange two 3 keep tightness. At the same time, the sealing ring 8 at one end of loose flange one 1 will be inserted into the sealing groove 9 at one end of loose flange two 3. Through the mutual cooperation of the sealing ring 8 made of soft silicone and the sealing groove 9, the sealing performance between loose flange one 1 and loose flange two 3 can be greatly improved, making it more difficult for the media transmitted by the pipes to leak from the joint during the transmission process, contributing to environmental protection and the safe operation of equipment, reducing energy waste and cost increase caused by leakage. The rust-proof layer 12 provided can effectively improve the rust-proof ability of loose flange one 1 and loose flange two 3, reducing the occurrence of oxidation and corrosion. At the same time, loose flange one 1, loose flange two 3, and the fixing nut 2 made of aluminum alloy can enable the three to have good corrosion resistance and stamping resistance, greatly improving the overall practicality.

Claims

1. A slip-on joint with good sealing performance, comprising a slip-on joint (1), characterized in that: One end of the flexible joint (1) is threadedly connected to a fixing nut (2), and the end of the fixing nut (2) away from the flexible joint (1) is threadedly connected to the flexible joint (3). The flexible joint (1) and the flexible joint (3) are both fixedly connected to fixing rings (4). The opposite surfaces of the flexible joint (1) and the flexible joint (3) are provided with sealing members. The flexible joint (1) and the flexible joint (3) are both provided with anti-rust layers (12). The opposite surfaces of the two fixing rings (4) are both fixedly connected to rubber A rubber pad (5); one end of the second flexible joint (3) is fixedly connected to an arc block (6); one end of the first flexible joint (1) is provided with an arc groove (7); the arc block (6) and the arc groove (7) can fit tightly and have the same shape and size; the sealing member comprises a sealing ring (8) fixedly connected to one end of the first flexible joint (1); one end of the second flexible joint (3) is provided with a sealing groove (9); the sealing ring (8) can be slidably connected inside the sealing groove (9); the sealing ring (8) is made of soft silicone.

2. A slip-on joint with good sealing performance according to claim 1, characterized in that: The inner walls of the flexible joint 1 (1) and the flexible joint 2 (3) are both provided with internal thread grooves (10).

3. A slip-on joint with good sealing performance according to claim 1, characterized in that: A plurality of anti-slip bumps (11) are evenly and fixedly connected to the outer wall of the fixing nut (2).

4. A slip-on joint with good sealing performance according to claim 1, characterized in that: The anti-rust layer (12) is anti-rust paint.

5. A slip-on joint with good sealing performance according to claim 1, characterized in that: The first flexible joint (1) and the second flexible joint (3) are both made of aluminum alloy, and the fixing nut (2) is also made of aluminum alloy.

Images