A tee flange joint facilitating sealing butt joint

Abstract

The utility model discloses a kind of three-way flange joints of sealing butt joint convenient, including first flange, still including second flange, the side of first flange is communicated with first pipeline, the side of second flange away from first flange is communicated with second pipeline, the outer surface of second flange is fixedly connected with fixed shell, fixed groove is passed in the inner chamber bottom of fixed shell, the outer surface of first flange is fixedly connected with butt joint component, the side of first flange away from first pipeline is fixedly connected with sealing ring, sealing groove is set in the side of sealing ring away from first flange, the side of second flange close to first flange is fixedly connected with sealing ring, the utility model is designed by using unique butt joint component, discard traditional bolt connection mode, the butt joint and separation of flange are realized by the clamping of fixed block and fixed groove, operator only needs simple pushing and releasing action, butt joint and separation operation can be completed, without tightening or loosening multiple groups of bolt nut one by one, greatly shorten dismounting time.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connection technology, and in particular to a tee flange joint that facilitates sealing and connection. Background Technology

[0002] A tee flange is a pipe connection assembly that combines a tee pipe fitting with a flange. It enables the branching or convergence of three pipes through flange connection, and uses the sealing structure of the flange to ensure the reliability and pressure resistance of the connection. It connects to pipes or other equipment through the flange structure. Its core function is to achieve quick assembly and disassembly through standardized interfaces while ensuring sealing. It is widely used in petroleum, chemical, water treatment, HVAC and other fields.

[0003] Traditional tee flange joints, which facilitate sealing and connection, mainly consist of a flange body, gasket, bolts and nuts, and auxiliary structures. Their working principle is as follows: the bolt preload causes plastic deformation of the gasket, filling the microscopic unevenness of the flange sealing surface and preventing media leakage through the interface. The minimum pressure required per unit area of ​​the gasket ensures an initial seal. Under operating conditions, the ratio of the residual gasket pressure to the internal pressure reflects the seal's durability. Internal pipeline pressure causes a tendency for flange separation. Bolt elongation reduces the pressure, and the gasket maintains the seal through elastic recovery. The remaining pressure must be higher than the working sealing pressure to prevent leakage.

[0004] However, traditional tee flange joints, which are easy to seal and connect, still face many problems in use. For example, the bolt connection method is particularly cumbersome to operate. Each time it is disassembled and assembled, multiple sets of bolts and nuts need to be tightened or loosened one by one, which is very inconvenient. Therefore, each disassembly and assembly requires a lot of time and manpower.

[0005] Therefore, this utility model proposes a three-way flange joint that facilitates sealing and connection to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a tee flange joint that facilitates sealing and connection, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a tee flange joint that facilitates sealing and connection, including a first flange and a second flange, one side of the first flange is connected to a first pipe, the side of the second flange away from the first flange is connected to a second pipe, a fixing shell is fixedly connected to the outer surface of the second flange, a fixing groove is provided through the bottom of the inner cavity of the fixing shell, and a docking assembly is fixedly connected to the outer surface of the first flange.

[0008] Preferably, a sealing ring is fixedly connected to the side of the first flange away from the first pipe, and a sealing groove is formed on the side of the sealing ring away from the first flange. A sealing ring is fixedly connected to the side of the second flange close to the first flange.

[0009] Preferably, the docking assembly includes a mounting shell fixedly connected to the outer surface of the first flange, a cover plate fixedly connected to the upper surface of the mounting shell by screws, a fixing rod fixedly connected to the inner wall of the mounting shell, and a connecting plate slidably connected to the outer wall of the fixing rod.

[0010] Preferably, the bottom of the inner cavity of the mounting shell is provided with a movable groove, the inner wall of the movable groove is slidably connected to the outer wall of the connecting plate, and a fixing block is fixedly connected to the side of the connecting plate away from the fixing rod.

[0011] Preferably, the outer wall of the fixing block is provided with an inclined surface, and the outer wall of the fixing rod is fitted with a spring. One end of the spring abuts against the inner cavity wall of the mounting shell, and the other end of the spring abuts against the outer surface of the connecting plate.

[0012] Preferably, the inner wall of the mounting shell is provided with a guide groove, and a guide block is slidably connected to the inner wall of the guide groove. The side of the guide block away from the guide groove is fixedly connected to the side of the connecting plate close to the guide groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model adopts a unique docking component design, which abandons the traditional bolt connection method. The docking and separation of the flange is achieved by the snap-fit ​​of the fixing block and the fixing groove. The operator only needs to push and release to complete the docking and separation operation. There is no need to tighten or loosen multiple sets of bolts and nuts one by one, which greatly shortens the disassembly and assembly time. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure between the sealing ring and the first flange of this utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure between the sealing ring and the second flange of this utility model;

[0018] Figure 4 This is a schematic diagram of the docking component structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of the mounting shell of this utility model.

[0020] In the diagram: 1. First pipe; 2. First flange; 3. Second flange; 4. Second pipe; 5. Connecting assembly; 501. Mounting shell; 502. Cover plate; 503. Movable groove; 504. Fixing block; 505. Inclined surface; 506. Connecting plate; 507. Spring; 508. Guide groove; 509. Guide block; 510. Fixing rod; 6. Sealing ring; 7. Sealing groove; 8. Fixing shell; 9. Fixing groove; 10. Sealing ring. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Please see Figures 1 to 5 This utility model provides a technical solution: a three-way flange joint that facilitates sealing and connection, including a first flange 2 and a second flange 3. One side of the first flange 2 is connected to a first pipe 1, and the side of the second flange 3 away from the first flange 2 is connected to a second pipe 4. A fixing shell 8 is fixedly connected to the outer surface of the second flange 3. A fixing groove 9 is provided through the bottom of the inner cavity of the fixing shell 8 for engaging with a connecting plate 506 and a fixing block 504 to complete the connection and fixation of the second flange 3 away from the first flange 2. A docking assembly 5 is fixedly connected to the outer surface of the first flange 2. The quick connection and separation between the first flange 2 and the second flange 3 are achieved through the engagement of the docking assembly 5 and the fixing groove 9. A sealing ring 6 is fixedly connected to the side of the first flange 2 away from the first pipe 1. A sealing groove 7 is provided on the side of the sealing ring 6 away from the first flange 2. A sealing ring 10 is fixedly connected to the side of the second flange 3 close to the first flange 2. When the first flange 2 and the second flange 3 are docked, the sealing ring 10 is inserted into the sealing groove 7 to form a good sealing effect and prevent media leakage.

[0023] In actual use, when the first flange 2 and the second flange 3 are connected, the sealing ring 10 on the second flange 3 is first aligned with the sealing groove 7 on the sealing ring 6. As the first flange 2 and the second flange 3 are connected, the sealing ring 10 is also inserted into the sealing groove 7 on the sealing ring 6, forming a preliminary seal. At the same time, the inclined surface 505 on the fixing block 504 moves downward along the fixing groove 9 in the fixing shell 8, forcing the connecting plate 506 to slide along the guide groove 508 on the fixing rod 510 and compressing the spring 507. When the fixing block 504 has completely passed through the fixing groove 9, the spring 507 returns to pushing the connecting plate 506 to slide along the guide groove 508 on the fixing rod 510, so that the connecting plate 506, the fixing block 504 and the fixing groove 9 are engaged, thereby completing the connection and fixing of the first flange 2 and the second flange 3.

[0024] The docking assembly 5 includes a mounting shell 501 fixedly connected to the outer surface of the first flange 2. This structure is suitable for low-pressure, low-vibration, or high-efficiency disassembly and assembly conditions. A cover plate 502 is fixedly connected to the upper surface of the mounting shell 501 by screws. The screw fixing method facilitates the disassembly of the cover plate 502, thereby allowing for inspection and maintenance of the internal structure of the mounting shell 501. A fixing rod 510 is fixedly connected to the inner wall of the mounting shell 501, providing a mounting base for the spring 507. A connecting plate 506 is slidably connected to the outer wall of the fixing rod 510. A movable groove 503 is provided through the bottom of the inner cavity of the mounting shell 501, providing a basis for the movement of the connecting plate 506. The inner wall of the movable groove 503 is slidably connected to the outer wall of the connecting plate 506. A fixing block 504 is fixedly connected to the side of the connecting plate 506 away from the fixing rod 510. The fixing block 504 cooperates with the connecting plate 506 and forms a snap-fit ​​with the fixing groove 9, facilitating the docking and fixing of the first flange 2 and the second flange 3.

[0025] The outer wall of the fixing block 504 has an inclined surface 505, and the outer wall of the fixing rod 510 is fitted with a spring 507. One end of the spring 507 abuts against the inner wall of the mounting shell 501, and the other end of the spring 507 abuts against the outer surface of the connecting plate 506. The inclined surface 505 on the fixing block 504 moves downward along the fixing groove 9 in the fixing shell 8, forcing the connecting plate 506 to slide along the guide groove 508 on the fixing rod 510 and compressing the spring 507. After the fixing block 504 has completely passed through the fixing groove 9, the spring 507 resumes pushing the connecting plate 506. The fixing rod 510 slides along the guide groove 508, so that the connecting plate 506, the fixing block 504 and the fixing groove 9 are engaged, thus completing the docking and fixing of the first flange 2 and the second flange 3. The inner wall of the mounting shell 501 is provided with a guide groove 508, and a guide block 509 is slidably connected to the inner wall of the guide groove 508. The side of the guide block 509 away from the guide groove 508 is fixedly connected to the side of the connecting plate 506 near the guide groove 508. The cooperation between the guide block 509 and the guide groove 508 ensures the stability of the connecting plate 506 during the sliding process.

[0026] In actual use, conversely, when it is necessary to separate the first flange 2 and the second flange 3, simply push the fixing block 504 manually to make the connecting plate 506 slide in the opposite direction along the guide groove 508 on the fixing rod 510, so that the connecting plate 506, the fixing block 504 and the fixing groove 9 are released from the engagement. Keep the fixing block 504 in the pressed state, pull the first flange 2 in the opposite direction, so that the sealing ring 10 is removed from the sealing groove 7. At the same time, the fixing block 504 slides out along the inner wall of the fixing shell 8, thus completing the separation of the first flange 2 and the second flange 3.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tee flange joint for easy sealing and connection, comprising a first flange (2) and a second flange (3), wherein a first pipe (1) is connected to one side of the first flange (2), and a second pipe (4) is connected to the side of the second flange (3) away from the first flange (2), characterized in that: The outer surface of the second flange (3) is fixedly connected to a fixed shell (8), and a fixed groove (9) is provided through the bottom of the inner cavity of the fixed shell (8). The outer surface of the first flange (2) is fixedly connected to a docking assembly (5).

2. The tee flange joint for easy sealing and connection according to claim 1, characterized in that: A sealing ring (6) is fixedly connected to the side of the first flange (2) away from the first pipe (1), and a sealing groove (7) is opened on the side of the sealing ring (6) away from the first flange (2). A sealing ring (10) is fixedly connected to the side of the second flange (3) close to the first flange (2).

3. The tee flange joint for easy sealing and connection according to claim 1, characterized in that: The docking assembly (5) includes a mounting shell (501) fixedly connected to the outer surface of the first flange (2). A cover plate (502) is fixedly connected to the upper surface of the mounting shell (501) by screws. A fixing rod (510) is fixedly connected to the inner wall of the mounting shell (501). A connecting plate (506) is slidably connected to the outer wall of the fixing rod (510).

4. The tee flange joint for easy sealing and mating according to claim 3, characterized in that: The bottom of the inner cavity of the mounting shell (501) is provided with a movable groove (503). The inner wall of the movable groove (503) is slidably connected to the outer wall of the connecting plate (506). A fixing block (504) is fixedly connected to the side of the connecting plate (506) away from the fixing rod (510).

5. The tee flange joint for easy sealing and mating according to claim 4, characterized in that: The outer side wall of the fixing block (504) is provided with a slope (505), and the outer wall of the fixing rod (510) is fitted with a spring (507). One end of the spring (507) abuts against the inner wall of the mounting shell (501), and the other end of the spring (507) abuts against the outer surface of the connecting plate (506).

6. The tee flange joint for easy sealing and mating according to claim 3, characterized in that: The inner wall of the mounting shell (501) is provided with a guide groove (508), and a guide block (509) is slidably connected to the inner wall of the guide groove (508). The side of the guide block (509) away from the guide groove (508) is fixedly connected to the side of the connecting plate (506) close to the guide groove (508).

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