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CN-224214887-U - High-tightness flange

CN224214887UCN 224214887 UCN224214887 UCN 224214887UCN-224214887-U

Abstract

The utility model discloses a flange with high tightness, which relates to the technical field of flanges and comprises a first flange and a second flange, wherein a shielding cover is fixedly connected to the outer side of the first flange, a first gasket is fixedly connected to the inner wall of the shielding cover, and one side of the shielding cover is sleeved on one side of the second flange. According to the utility model, the fixing block is arranged at the end part of the fixing bolt, the limiting groove is formed in the fixing block, the limiting block is driven to move by the operation adjusting component, and the limiting block is inserted into the limiting groove of the fixing block to limit and lock the fixing bolt, so that the fixing nut can completely remove the vibration load from the fixing bolt.

Inventors

  • CAI DONGSEN
  • CAI JUNYU

Assignees

  • 无锡市俊誉法兰有限公司

Dates

Publication Date
20260508
Application Date
20250611

Claims (7)

  1. 1. A flange with high tightness comprises a first flange (1) and a second flange (2), and is characterized in that a shielding cover (3) is fixedly connected to the outer side of the first flange (1), a first gasket (4) is fixedly connected to the inner wall of the shielding cover (3), one side of the second flange (2) is sleeved with one side of the shielding cover (3), one side of the first gasket (4) is abutted against one side of the second flange (2) in a fit mode, a butt joint assembly (7) is arranged between the first flange (1) and the second flange (2), a fixing bolt (5) is inserted on the first flange (1), a fixing nut (6) is connected to one side of the fixing bolt (5) in a threaded mode through the second flange (2), one side of the fixing bolt (5) away from the first flange (1) is fixedly connected with a fixing block (8), a limit groove (9) is formed in the inner portion of the fixing block (8), a limit block (10) is inserted in the limit groove (9), one side of the shielding cover (3) close to the limit block (10) is provided with an adjusting assembly (11), and the limit block (11) is connected to the adjusting assembly through the adjusting assembly.
  2. 2. The flange with high tightness according to claim 1, wherein the abutting assembly (7) comprises an abutting ring (71), the abutting ring (71) is fixedly connected to one side, far away from the shielding cover (3), of the first flange (1), an abutting groove (72) is formed in one side, close to the first flange (1), of the second flange (2), and the abutting ring (71) is movably connected with the abutting groove (72).
  3. 3. A flange with high tightness as claimed in claim 2, characterized in that the inside of the butt joint groove (72) is fixedly connected with a second gasket (73), and one side of the butt joint ring (71) is abutted against one side of the second gasket (73).
  4. 4. The flange with high tightness according to claim 1, wherein the adjusting assembly (11) comprises a sliding groove (114), the sliding groove (114) is formed in one side, close to the limiting block (10), of the shielding cover (3), a screw (111) is rotatably connected to the inside of the sliding groove (114), a sliding block (112) is connected to the outer surface of the screw (111) in a threaded mode, the sliding block (112) is in sliding connection with the sliding groove (114), and one side of the sliding block (112) is fixedly connected with one side of the limiting block (10).
  5. 5. The flange with high tightness according to claim 4, wherein the top end of the screw rod (111) is fixedly connected with a torsion wheel (113), and the torsion wheel (113) is rotatably connected to the shielding cover (3).
  6. 6. The flange with high tightness according to claim 4, wherein guide grooves (115) are formed in two sides of the inside of the sliding groove (114), guide blocks (116) are connected in a sliding manner in the guide grooves (115), and one side of each guide block (116) is fixedly connected with one side of each sliding block (112).
  7. 7. The flange with high tightness according to claim 4, wherein the slider (112) is fixedly connected with a compression block (12) at one side of the limiting block (10), and one side of the compression block (12) is abutted against one side of the fixing bolt (5).

Description

High-tightness flange Technical Field The utility model belongs to the technical field of flanges, and particularly relates to a flange with high sealing performance. Background The flange is used as an indispensable connecting part in a pipeline system and is widely applied to various industries such as petrochemical industry, electric power energy, hydraulic engineering, aerospace and the like. The main functions of the pipeline are to realize detachable connection between the pipeline and between the pipeline and the equipment, so that the installation, maintenance and overhaul of the equipment are convenient, the displacement and stress of the pipeline caused by temperature change and mechanical vibration can be compensated to a certain extent, and along with the continuous progress of industrial technology, the pipeline system has increasingly severe requirements on the sealing performance, so that a flange with high sealing performance is needed. For example, chinese patent with publication number CN219432699U discloses a high-tightness flange, which comprises a first flange, a connecting plate and a mounting block, wherein the surface of the first flange is provided with four first bolts, the surface of the four first bolts is provided with a second flange, one end of the four first bolts far away from the first flange is inserted with a nut through threads, one end of the first flange, which is close to the second flange, is abutted with a sealing cushion block, the first flange is fixedly connected with the mounting block, the connecting plate is clamped with the mounting block, and the first flange is provided with a sealing device by means of the mounting block and the connecting plate. Although the above-mentioned published patent solves the problem of existing flange seal type not enough, still there are some defects that need to be improved in existing seal flange, specifically, after the bolt is connected with the nut, easily produce not hard up hidden danger under the external factor influence such as vibration, and current structure lacks the reinforcement design to the bolt, leads to flange joint's long-term stability limited, probably causes sealed inefficacy because of the bolt is not hard up, and then influences whole piping system's security. Disclosure of utility model In view of the problems mentioned in the background art, an object of the present utility model is to provide a flange with high sealing performance, so as to solve the problems in the background art. The technical aim of the utility model is realized by the following technical scheme: the utility model provides a flange of high leakproofness, includes first flange and second flange, the outside fixedly connected with of first flange shelters from the cover, the inner wall fixedly connected with first gasket of shelter from the cover, one side cover of sheltering from the cover is established in one side of second flange, one side of first gasket is contradicted with one side laminating of second flange, be equipped with docking assembly between first flange and the second flange, it has fixing bolt to peg graft on the first flange, second flange threaded connection has fixation nut is passed to one side of fixing bolt, one side fixedly connected with fixed block of first flange is kept away from to fixing bolt, the spacing groove has been seted up to the inside of fixed block, the inside grafting of spacing groove has the stopper, one side that is close to the stopper on the shelter from the cover is equipped with adjusting part, the stopper passes through adjusting part and spacing groove fixed connection. As the preferred technical scheme, the docking assembly includes the docking collar, docking collar fixed connection is kept away from one side of shielding cover at first flange, the docking groove has been seted up to one side that the second flange is close to first flange, docking collar and docking groove swing joint, the inside fixedly connected with second gasket of docking groove, one side of docking collar is contradicted with one side laminating of second gasket. As the preferable technical scheme, the adjusting component comprises a chute, the chute is arranged on one side of the shielding cover close to the limiting block, a screw is rotationally connected in the chute, a sliding block is connected to the outer surface of the screw in a threaded mode, the sliding block is in sliding connection with the chute, one side of the sliding block is fixedly connected with one side of the limiting block, a torsion wheel is fixedly connected to the top end of the screw, and the torsion wheel is rotationally connected to the shielding cover. As the preferable technical scheme, the inside both sides of spout have all seted up the guide way, the inside sliding connection of guide way has the guide block, one side of guide block and one side fixed connection of slider. As the preferable technical scheme, the slider is