Fatigue resistant flange

Abstract

The utility model discloses a kind of fatigue-resistant flanges, the utility model discloses including flange main body, mounting plate, sealing assembly, fixed ring, fastener and O-ring, the flange main body includes the flange plate and the neck portion fixedly arranged in the right side of the flange plate, the mounting plate is fixedly arranged in the outside of the flange main body, the sealing assembly includes the sealing cover that is inserted in the outside of the flange plate, the recess that is opened in the inboard of the sealing cover and the drying agent that is placed in the recess, the fixed ring is fixedly connected with the sealing cover by screw, the fastener is fixedly arranged in the outside of the sealing cover, the O-ring is inserted in the left side of the flange plate.The utility model can be waterproof and moistureproof by setting sealing assembly, avoid the problem that flange connection is unstable due to seawater corrosion bolt, simultaneously by setting mounting plate and fastener, sealing assembly can be quickly disassembled, save time and effort.

Description

Technical Field

[0001] This utility model relates to the field of flange technology, specifically to a fatigue-resistant flange. Background Technology

[0002] Fatigue-resistant flanges can compensate for deformation of the flange connection under complex working conditions through the rebound of elastic elements, thereby reducing fatigue damage. Grooves can be made between the flange faces, and O-rings can be embedded. The sealing ring is compressed by the bolt preload. When the pipeline experiences axial displacement due to thermal expansion and contraction or vibration, the elastic deformation of the O-ring can compensate for the displacement, avoiding direct friction or stress concentration between the flange faces. However, fatigue-resistant flanges require bolt fixing during use. Since the fixing bolts are exposed, they are susceptible to rapid corrosion from seawater at sea, leading to poor stability of the flange connection and certain shortcomings. Therefore, we propose a fatigue-resistant flange. Utility Model Content

[0003] The present invention aims to solve the problems existing in the prior art or related technologies.

[0004] Therefore, the technical solution adopted by this utility model is as follows: a fatigue-resistant flange, comprising a flange body, a mounting plate, a sealing assembly, a retaining ring, fasteners, and an O-ring. The flange body includes a flange plate and a neck fixedly disposed on the right side of the flange plate. The mounting plate is fixedly disposed on the outside of the flange body. The sealing assembly includes a sealing cover inserted through the outside of the flange plate, a groove formed inside the sealing cover, and a desiccant placed in the groove. The retaining ring is fixedly connected to the sealing cover by screws. The fasteners are fixedly disposed on the outside of the sealing cover. The O-ring is inserted through the left side of the flange plate.

[0005] Preferably, the flange has a plurality of first mounting holes, and the left side of the flange has a first slot for placing an O-ring, and the right side of the flange has a second slot for inserting a sealing assembly.

[0006] Preferably, a stop for blocking the sealing assembly is fixedly provided on the outer side of the neck, and an internal thread is provided on the inner side of the neck.

[0007] Preferably, each of the three mounting plates has a locking hole on its outer side.

[0008] Preferably, the right side of the sealing cap is inserted into the neck, and the sealing cap has a hollow structure.

[0009] Preferably, three mesh frames are fixedly installed on the fixing ring, and a second mounting hole is provided on the fixing ring.

[0010] Preferably, the fastener includes a fixing plate fixedly disposed on the outside of the sealing cover, a spring fixedly disposed on the left side of the fixing plate, and a fastening post fixedly disposed on the left side of the spring.

[0011] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: The sealing cover provided by this utility model can cover the bolts fixed on the flange, thereby sealing the bolts and preventing seawater from contacting the bolts and accelerating corrosion. The desiccant provided can absorb moisture in the air, thus achieving a waterproof and moisture-proof effect, thereby improving the stability of the flange connection. Furthermore, the spring of the fastener allows the fastening column to move away from the mounting plate. After detachment, the sealing cover can be moved away from the flange body. Since the fixing ring is fixed to the sealing cover by screws, the fixing ring can be removed by removing the screws. After removal, the desiccant in the groove can be replaced for use. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This utility model Figure 1 Schematic diagram of the main structure of the middle flange;

[0014] Figure 3 This utility model Figure 1 A schematic diagram of the structure of the central sealing assembly and the retaining ring.

[0015] Figure label:

[0016] 100. Flange body; 101. Flange; 102. First mounting hole; 103. First slot; 104. Second slot; 105. Neck; 106. Stop;

[0017] 200. Mounting plate; 201. Clip hole;

[0018] 300. Sealing assembly; 301. Sealing cap; 302. Groove; 303. Desiccant;

[0019] 400. Fixing ring; 401. Space frame; 402. Second mounting hole;

[0020] 500. Fastener; 501. Fixing plate; 502. Spring; 503. Fastening post;

[0021] 600, O-ring. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0023] The following description, in conjunction with the accompanying drawings, describes some embodiments of this utility model that provide a fatigue-resistant flange.

[0024] Example 1:

[0025] Reference Figure 1-3 This is the first embodiment of the present invention, which provides a fatigue-resistant flange, including a flange body 100, a mounting plate 200, a sealing assembly 300, a retaining ring 400, a fastener 500, and an O-ring 600.

[0026] Specifically, the flange body 100 includes a flange 101 and a neck 105 fixedly disposed on the right side of the flange 101. The flange 101 has several first mounting holes 102, and the left side of the flange 101 has a first slot 103 for placing an O-ring 600. The right side of the flange 101 has a second slot 104 for inserting a sealing assembly 300. A stop 106 for blocking the sealing assembly 300 is fixedly disposed on the outer side of the neck 105, and the inner side of the neck 105 has internal threads. In use, the bolts can easily pass through the flange 101 for fixing through the several first mounting holes 102, and the O-ring 600 can be easily fixed on the flange 101 through the first slot 103. Then, it can be inserted and connected to the sealing assembly 300 through the second slot 104, and the stop 106 can block the sealing assembly 300, facilitating sealing through the sealing assembly 300.

[0027] Specifically, the mounting plate 200 is fixedly installed on the outside of the flange body 100. Each of the three mounting plates 200 has a locking hole 201 on its outside. In use, the fastener 500 can be engaged with the mounting plate 200 through the locking hole 201 so as to fix the sealing assembly 300 on the flange body 100.

[0028] Specifically, the sealing assembly 300 includes a sealing cover 301 inserted on the outside of the flange 101, a groove 302 formed on the inside of the sealing cover 301, and a desiccant 303 placed in the groove 302. The right side of the sealing cover 301 is inserted on the neck 105. The sealing cover 301 has a hollow structure. In use, the sealing cover 301 can seal the bolts and is waterproof, while the desiccant 303 can absorb moisture in the air, thus achieving the effect of waterproofing and moisture-proofing, so as to improve the stability of the flange connection.

[0029] Specifically, the fixing ring 400 is fixedly connected to the sealing cover 301 by screws. Three mesh frames 401 are fixedly installed on the fixing ring 400, and a second mounting hole 402 is provided on the fixing ring 400. In use, the fixing ring 400 is used to block the desiccant 303 in the groove 302, while the mesh frames 401 facilitate the desiccant 303 to absorb water. Then, the second mounting hole 402 facilitates the screws to pass through the fixing ring 400 for fixing.

[0030] Specifically, the fastener 500 is fixedly installed on the outside of the sealing cover 301. The fastener 500 includes a fixing plate 501 fixedly installed on the outside of the sealing cover 301, a spring 502 fixedly installed on the left side of the fixing plate 501, and a fastening post 503 fixedly installed on the left side of the spring 502. In use, the fastening post 503 is movable by the spring 502, so that the fastening post 503 can be inserted into the locking hole 201 of the mounting plate 200 to fix the sealing assembly 300 to the flange 101.

[0031] Specifically, the O-ring 600 is inserted on the left side of the flange 101. When the pipeline undergoes axial displacement due to thermal expansion and contraction or vibration, the elastic deformation of the O-ring 600 can compensate for the displacement, avoid direct friction or stress concentration on the flange surface, and improve fatigue resistance.

[0032] The working principle and usage process of this utility model are as follows: In use, the sealing cover 301 of the sealing component 300 can be aligned with the first slot 103 of the flange body 100 and inserted. After connection, the sealing cover 301 will contact the stop block 106. Then, pull the fastening post 503 of the fastener 500 until the fastening post 503 is inserted into the slot 201 of the mounting plate 200. After insertion, due to the elasticity of the spring 502, the fastener 500 can fix the sealing component 300 to the flange body 100. After fixing, the sealing cover 301 can cover the bolts fixed on the flange 101, thereby sealing the bolts. The desiccant 303 can absorb moisture in the air. When the desiccant 303 needs to be replaced, the fastening post 503 can be moved away from the mounting plate 200 first, and then the sealing cover 301 can be moved away from the flange body 100. After separation, the screw can be rotated to remove the fixing ring 400. Finally, the desiccant 303 can be replaced.

[0033] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A fatigue-resistant flange, characterized in that, include: The flange body (100) includes a flange (101) and a neck (105) fixedly disposed on the right side of the flange (101); The mounting plate (200) is fixedly installed on the outside of the flange body (100); The sealing assembly (300) includes a sealing cap (301) inserted through the outside of the flange (101), a groove (302) formed inside the sealing cap (301), and a desiccant (303) placed in the groove (302); The retaining ring (400) is fixedly connected to the sealing cap (301) by screws; Fasteners (500) are fixedly disposed on the outside of the sealing cover (301); An O-ring (600) is inserted on the left side of the flange (101).

2. The fatigue-resistant flange according to claim 1, characterized in that, The flange (101) has a plurality of first mounting holes (102), and the left side of the flange (101) has a first slot (103) for placing an O-ring (600), and the right side of the flange (101) has a second slot (104) for inserting a sealing assembly (300).

3. The fatigue-resistant flange according to claim 1, characterized in that, A stop (106) for blocking the sealing assembly (300) is fixedly provided on the outer side of the neck (105), and an internal thread is provided on the inner side of the neck (105).

4. The fatigue-resistant flange according to claim 1, characterized in that, Each of the three mounting plates (200) has a snap hole (201) on its outer side.

5. A fatigue-resistant flange according to claim 1, characterized in that, The right side of the sealing cap (301) is inserted into the neck (105), and the sealing cap (301) has a hollow structure.

6. A fatigue-resistant flange according to claim 1, characterized in that, Three mesh frames (401) are fixedly installed on the fixing ring (400), and a second mounting hole (402) is provided on the fixing ring (400).

7. A fatigue-resistant flange according to claim 1, characterized in that, The fastener (500) includes a fixing plate (501) fixedly disposed on the outside of the sealing cover (301), a spring (502) fixedly disposed on the left side of the fixing plate (501), and a fastening post (503) fixedly disposed on the left side of the spring (502).

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