CN220506083U - High leakproofness flange - Google Patents

Abstract

The utility model provides a high-tightness flange, which comprises a front flange and a rear flange, wherein one end of the front flange is connected with the rear flange in a sliding manner, one end of the rear flange is fixedly connected with a connecting flange, the outer side surface of the front flange is provided with a sealing mechanism, the outer side surface of the front flange is provided with a pressing mechanism, the sealing mechanism expands an elastic layer and a waterproof layer and is sleeved and wound on the front flange and the rear flange, the front flange, the rear flange and the connecting position are sealed, good elasticity is achieved, the connecting position can be guaranteed to be tightly attached and sealed after the covering, an active support frame and a driven support frame of the pressing mechanism are adsorbed together to guarantee connection stability, at the moment, a pressing ring can press an elastic layer and the waterproof layer attached to the surface of the flange, the elastic layer and the waterproof layer can be pressed into chamfer angles formed at the edges of the flanges at two sides, the elastic layer and the waterproof layer are more attached to the flange, the elastic layer and the waterproof layer can be prevented from being shifted after the pressing, and the sealing effect is improved.

Description

High leakproofness flange

Technical Field

The utility model relates to the technical field of flanges, in particular to a high-tightness flange.

Background

The flange is a common connecting device, is widely used for connecting devices such as pipelines, valves and pumps, is generally formed by two annular parts which are matched with each other, is fastened together through bolts, is divided into a plurality of types, comprises a plate flange, a butt welding flange, a spiral welding neck flange and the like, is applicable to different scenes and requirements, has different characteristics and advantages, is characterized in that the flange can be conveniently installed and detached, is convenient for maintenance and replacement of devices, has an important function in the industrial field, can be used for connecting the pipelines and the devices and can be used for connecting various accessories and accessories, ensures safe and reliable working environments in the fields such as petrochemical industry, chemical industry and water treatment, plays a key role in the industrial field, ensures stable connection between the devices and the pipelines through fastening and sealing, and ensures smooth industrial production.

But the existing flange, most of which are poor in tightness to the joint in the use process, can cause corrosion of equipment and pipelines due to leakage of the joint, increase maintenance and replacement costs, and can cause pressure change of the system due to leakage of the joint of the flange, thereby affecting the stability and normal operation of the system.

Disclosure of Invention

The utility model aims to provide a high-tightness flange, which is used for solving the problems that in the prior art, in the use process, the flange is used for connecting pipelines, the sealing requirement on the connecting part is high, the sealing of the connecting part of the flange can effectively prevent media such as fluid, gas and the like from leaking out of the connecting part, the media are polluted, the environment is polluted or the product quality is influenced if the sealing is insufficient, the working efficiency of a system is reduced due to the leakage of the connecting part, for example, the pressure is reduced due to the leakage in the liquid conveying process, and the conveying efficiency and the production process are influenced.

In order to achieve the above purpose, the utility model provides a high-tightness flange which comprises a front flange and a rear flange, wherein one end of the front flange is connected with the rear flange in a sliding manner, one end of the rear flange is fixedly connected with a connecting flange, a sealing mechanism is arranged on the outer side surface of the front flange, and a pressing mechanism is arranged on the outer side surface of the front flange.

Preferably, the connecting flange penetrates to the inner side surface of the front flange, and the connecting flange is connected with the inner side surface of the front flange in a sliding mode.

Preferably, the sealing mechanism comprises a rotating support frame, a rotating shaft, a limiting disc, a threaded column, a knob, an elastic layer, a waterproof layer, a mounting rod, a reset spring and a clamping column, wherein the rotating support frame is hinged to the outer side surface of the front flange, one end of the rotating support frame is slidably connected with the rotating shaft, the limiting disc is fixedly connected with the outer side surface of the rotating shaft, the threaded column is fixedly connected with the two ends of the rotating shaft, the knob is connected with the outer side surface of the threaded column, the elastic layer is fixedly connected with the outer side surface of the rotating shaft, the waterproof layer is tightly attached to the inner side surface of the elastic layer, one end of the elastic layer is fixedly connected with the mounting rod, the reset spring is fixedly connected with the inner side surface of the mounting rod, and one end of the reset spring is fixedly connected with the clamping column.

Preferably, the outer side surface hinge of the rear flange is connected with a rotating support frame, the rotating shaft penetrates through the rotating support frames on two sides, and the rotating shaft is in sliding connection with the rotating support frames.

Preferably, the number of the limiting plates is two, the limiting plates are symmetrically distributed on the outer side surface of the rotating shaft, and the threaded columns penetrate through the other side surface of the rotating support frame.

Preferably, the elastic layer is made of rubber, the waterproof layer is made of polyvinyl fluoride, and the reset springs are symmetrically distributed at two ends of the mounting rod.

Preferably, the hold-down mechanism is including initiative support frame, clamp ring, magnetism inhale piece, driven support frame and embedded groove, the outside surface hinged joint of leading flange has initiative support frame, one side fixedly connected with clamp ring of initiative support frame, the one end fixedly connected with magnetism of initiative support frame inhale the piece, the outside fixedly connected with driven support frame of trailing flange, the embedded groove has been seted up to one side surface of driven support frame.

Preferably, the driven support frame is made of stainless steel, and the magnetic attraction block is in sliding connection with the embedded groove.

Compared with the prior art, the utility model has the beneficial effects that: this high leakproofness flange, through the setting of rotating support frame, the pivot, the limiting disc, the screw thread post, the knob, the elastic layer, the waterproof layer, the installation pole, reset spring and block post, in the in-process of using, all articulate on leading flange and the rear flange has the rotating support frame, the rotating support frame of both sides can freely open and shut, when merging, both sides rotating support frame is connected to the pivot, and restrict the pivot on rotating support frame through screw thread post and knob, because pivot and the equal sliding connection of rotating support frame, the pivot still can rotate above it after the connection, epaxial limiting disc is used for pressing from both sides tight and limiting elastic layer and waterproof layer, and limit its centering prevents the position offset, elastic layer and waterproof layer cover establish and twine on the pivot, expand elastic layer and waterproof layer cover and set up the winding on leading flange and rear flange when needs the seal, seal leading flange and rear flange and junction, can guarantee that junction closely laminate after this moment, and the one end of elastic layer installs the block post through installation pole and reset spring, the block post can press and to the equal sliding connection of rotating support frame, the installation pole still can be closely laminated to the sealing position, can be covered on the pivot through the axial direction of the sealing flange when the roll back flange and the rotation of the roll over the position of the roll, can be closely covered by the axial position of the roll over the roll-up flange when the roll-up on the rotary support frame, can be closely covered by the axial position of the roll-down seal between the roll, the roll-up flange and the position can be closely covered by the roll down on the opposite side through the axial position of the sealing flange, and the sealing device can be covered by the sealing and the sealing hole through the sealing hole and the sealing hole, the effect of improving the sealing performance is achieved.

Drawings

FIG. 1 is a schematic side view of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the cooperation structure of the front flange and the rear flange of the present utility model;

FIG. 3 is a schematic view of the structure of the rotating support frame and the rotating shaft of the present utility model;

FIG. 4 is a schematic diagram showing the interaction structure of the elastic layer and the waterproof layer of the present utility model;

FIG. 5 is a schematic view of the structure of the mounting rod and the engaging post of the present utility model;

FIG. 6 is a schematic diagram of the mutually cooperating structures of the various components of the hold-down mechanism of the present utility model;

FIG. 7 is a schematic side view of a clamp ring of the present utility model;

fig. 8 is an enlarged view of fig. 1 at a in accordance with the present utility model.

In the figure: 1. a front flange; 2. a rear flange; 3. a connecting flange; 4. a sealing mechanism; 401. rotating the support frame; 402. a rotating shaft; 403. a limiting disc; 404. a threaded column; 405. a knob; 406. an elastic layer; 407. a waterproof layer; 408. a mounting rod; 409. a return spring; 410. a clamping column; 5. a compressing mechanism; 501. a driving support frame; 502. a clamp ring; 503. a magnetic suction block; 504. a driven support frame; 505. embedded in the groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-8, the utility model provides a high-tightness flange, which comprises a front flange 1 and a rear flange 2, wherein one end of the front flange 1 is connected with the rear flange 2 in a sliding manner, one end of the rear flange 2 is fixedly connected with a connecting flange 3, the outer side surface of the front flange 1 is provided with a sealing mechanism 4, and the outer side surface of the front flange 1 is provided with a pressing mechanism 5.

Further, the connecting flange 3 penetrates to the inner side surface of the front flange 1, and the connecting flange 3 is slidably connected with the inner side surface of the front flange 1.

Further, the sealing mechanism 4 comprises a rotary support frame 401, a rotary shaft 402, a limit plate 403, a threaded column 404, a knob 405, an elastic layer 406, a waterproof layer 407, a mounting rod 408, a return spring 409 and a clamping column 410, wherein the outer side surface of the front flange 1 is hinged with the rotary support frame 401, one end of the rotary support frame 401 is connected with the rotary shaft 402 in a sliding manner, the outer side surface of the rotary shaft 402 is fixedly connected with the limit plate 403, two ends of the rotary shaft 402 are fixedly connected with the threaded column 404, the outer side surface of the threaded column 404 is in threaded connection with the knob 405, the outer side surface of the rotary shaft 402 is fixedly connected with the elastic layer 406, the inner side surface of the elastic layer 406 is tightly adhered with the waterproof layer 407, one end of the elastic layer 406 is fixedly connected with the mounting rod 408, the inner side surface of the mounting rod 408 is fixedly connected with the return spring 409, one end of the return spring 409 is fixedly connected with the clamping column 410, through the arrangement of the rotary support frame 401, the rotary shaft 402, the limit disc 403, the threaded column 404, the knob 405, the elastic layer 406, the waterproof layer 407, the mounting rod 408, the reset spring 409 and the clamping column 410, in the use process, the rotary support frame 401 is hinged on the front flange 1 and the rear flange 2, the rotary support frames 401 on two sides can be freely opened and closed, when the rotary support frames 401 are combined, the rotary shaft 402 is connected with the rotary support frames 401 on two sides, and the rotary shaft 402 is limited on the rotary support frames 401 through the threaded column 404 and the knob 405, because the rotary shaft 402 is in sliding connection with the rotary support frames 401, the rotary shaft 402 can still rotate on the rotary shaft 402 after being connected, the limit disc 403 on the rotary shaft 402 is used for clamping and limiting the elastic layer 406 and the waterproof layer 407, and limiting the centering prevention position deviation of the rotary support frame, the elastic layer 406 and the waterproof layer 407 are sleeved on the rotary shaft 402, the elastic layer 406 and the waterproof layer 407 are stretched and sleeved on the rotary support frame 407 and wound on the front flange 1 and the rear flange 2 when sealing is needed, sealing the front flange 1 and the rear flange 2 and the joint, having good elasticity, can guaranteeing after covering that the joint is closely laminated and sealed, and the block post 410 is installed through installation pole 408 and reset spring 409 to the one end of elastic layer 406, block post 410 can press and pack up to the installation pole 408 in, the whole axial dimensions of installation pole 408 and block post 410 is little this moment, can place between the rotation support frame 401 of both sides, can reset the hole that pushes into on the rotation support frame 401 by reset spring 409 when the hole on the rotation support frame 401 is aligned, be used for locking the position of elastic layer 406 and waterproof layer 407, if the waterproof layer 407 that covers is not tight enough this moment, can reduce the length of covering waterproof layer 407 on the flange through reversing pivot 402, make its receipts tighter, and prevent to rotate and retrieve through tightening knob 405 clamp shaft 402, guarantee that the joint is closely laminated and sealed through covering front flange 1 and rear flange 2 and joint, the effect of improving the leakproofness has been reached.

Further, the outer side surface hinge of the rear flange 2 is connected with a rotating support 401, the rotating shaft 402 penetrates through the rotating support 401 on two sides, the rotating shaft 402 is in sliding connection with the rotating support 401, the front flange 1 and the rear flange 2 are both hinged with the rotating support 401, the rotating support 401 on two sides can be freely opened and closed, and the rotating shaft 402 is connected with the rotating support 401 on two sides and can rotate on the rotating support 401.

Further, the number of the limiting plates 403 is two and symmetrically distributed on the outer side surface of the rotating shaft 402, the threaded columns 404 penetrate to the other side surface of the rotating support frame 401, the limiting plates 403 are used for clamping and limiting the elastic layer 406 and the waterproof layer 407, limiting the centering and preventing position deviation, and the elastic layer 406 and the waterproof layer 407 can be still limited when the rotating support frames 401 on the two sides are not combined, and the threaded columns 404 and the knob 405 limit the rotating shaft 402 on the rotating support frame 401.

Further, the elastic layer 406 is made of rubber, the waterproof layer 407 is made of polyvinyl fluoride, the reset springs 409 are symmetrically distributed at two ends of the mounting rod 408, the rubber has very elasticity and can be tightly attached to the flange, and the polyvinyl fluoride has very good waterproof and corrosion resistance and is suitable for sealing and leakage prevention.

Further, hold-down mechanism 5 is including initiative support frame 501, clamp ring 502, magnetism is inhaled piece 503, driven support frame 504 and embedded groove 505, the outside surface hinged joint of leading flange 1 has initiative support frame 501, one side surface fixedly connected with clamp ring 502 of initiative support frame 501, the one end fixedly connected with magnetism is inhaled piece 503 of one side surface fixedly connected with driven support frame 504 of rear flange 2, embedded groove 505 has been seted up on one side surface of driven support frame 504, through initiative support frame 501, clamp ring 502, magnetism is inhaled piece 503, driven support frame 504 and embedded groove 505's setting, in the in-process of use, initiative support frame 501 and driven support frame 504 articulate respectively on leading flange 1 and rear flange 2, initiative support frame 501 and driven support frame 504 can freely open and shut, when the merger, magnetism is inhaled piece 503 on initiative support frame 501 can imbed in driven support frame 504's embedded groove 505, and adsorb together with initiative support frame 501 and driven support frame 504 and guarantee connection stability, elasticity layer 406 and 407 of laminating at flange surface are pressed together to clamp ring 502 at this moment, protruding 406 and 407 bottom have, elasticity layer 406 and waterproof layer 406 are pressed into elasticity layer 406 and waterproof layer 407 have been pressed down, waterproof layer position waterproof layer 407 has been further improved, waterproof layer position waterproof layer and waterproof layer sealing effect has been seted up.

Further, the driven support frame 504 is made of stainless steel, the magnetic attraction block 503 is slidably connected with the embedding groove 505, the stainless steel is made to be matched and attracted with the magnetic attraction block 503, the magnetic attraction block 503 on the driving support frame 501 can be embedded into the embedding groove 505 of the driven support frame 504, and the driving support frame 501 and the driven support frame 504 are attracted together to ensure connection stability.

Working principle: in the process of using the flange with high tightness, the front flange 1 and the rear flange 2 are fixed on the pipelines to be connected, after the connection is completed, the front flange 1 and the rear flange 2 are hinged with rotating support frames 401, the rotating support frames 401 on two sides can be freely opened and closed, when the rotating support frames 401 on two sides are combined, the rotating shaft 402 is connected with the rotating support frames 401 on two sides, and the rotating shaft 402 is limited on the rotating support frames 401 through screw columns 404 and knobs 405, as the rotating shaft 402 is in sliding connection with the rotating support frames 401, the rotating shaft 402 can still rotate on the rotating support frames 401 after the connection, a limiting disc 403 on the rotating shaft 402 is used for clamping and limiting an elastic layer 406 and a waterproof layer 407 and limiting the centering prevention position deviation, the elastic layer 406 and the waterproof layer 407 are sleeved and wound on the rotating shaft 402, the elastic layer 406 and the waterproof layer 407 are unfolded and sleeved and wound on the front flange 1 and the rear flange 2 when the sealing is required, the front flange 1, the rear flange 2 and the connecting part are sealed, good elasticity is provided, the connecting part can be tightly attached and sealed after being covered, one end of the elastic layer 406 is provided with the clamping column 410 through the mounting rod 408 and the reset spring 409, the clamping column 410 can be pressed and retracted into the mounting rod 408, the whole axial dimension of the mounting rod 408 and the clamping column 410 is small at the moment, the clamping column 410 can be placed between the rotating support frames 401 on two sides, when the holes on the rotating support frames 401 are aligned, the clamping column 410 can be reset by the reset spring 409 to push into the holes on the rotating support frames 401 for locking the positions of the elastic layer 406 and the waterproof layer 407, at the moment, if the waterproof layer 407 covered by connection is not tight enough, the length of the waterproof layer 407 covered on the flange can be reduced through the reversing rotating shaft 402, the clamping shaft 402 is tightly retracted, and the rotating shaft 402 is prevented from rotating and recovering by tightly clamping the rotating shaft 402 through screwing the knob 405, through covering leading flange 1 and rearmounted flange 2 and junction assurance junction closely laminating sealedly, reached the effect that improves the leakproofness, initiative support frame 501 and driven support frame 504 articulate respectively on leading flange 1 and rearmounted flange 2, initiative support frame 501 and driven support frame 504 can freely open and shut, when the amalgamation, the magnetic attraction piece 503 on the initiative support frame 501 can imbed in the embedded groove 505 of driven support frame 504, and adsorb initiative support frame 501 and driven support frame 504 together and guarantee connection stability, the clamp ring 502 can compress tightly elastic layer 406 and waterproof layer 407 of laminating on the flange surface at this moment, the clamp ring 502 bottom has the arch, can impress in the chamfer that both sides flange edge was offered with elastic layer 406 and waterproof layer 407, make elastic layer 406 and waterproof layer 407 laminate the flange more, and can prevent that the position of elastic layer 406 and waterproof layer 407 from taking place the skew after compressing tightly, further improved sealed effect, so has accomplished a high leakproofness flange.

Although embodiments of the present utility model 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 therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a high leakproofness flange, includes leading flange (1) and rearmounted flange (2), its characterized in that: one end of the front flange (1) is connected with a rear flange (2) in a sliding manner, one end of the rear flange (2) is fixedly connected with a connecting flange (3), the outer side surface of the front flange (1) is provided with a sealing mechanism (4), and the outer side surface of the front flange (1) is provided with a pressing mechanism;

sealing mechanism (4) are including rotating support frame (401), pivot (402), spacing dish (403), screw thread post (404), knob (405), elastic layer (406), waterproof layer (407), installation pole (408), reset spring (409) and block post (410), the outside surface hinged joint of leading flange (1) has rotating support frame (401), the one end sliding connection of rotating support frame (401) has pivot (402), the outside surface fixedly connected with spacing dish (403) of pivot (402), the both ends fixedly connected with screw thread post (404) of pivot (402), the outside surface threaded connection of screw thread post (404) has knob (405), the outside surface fixedly connected with elastic layer (406) of pivot (402), the inside surface of elastic layer (406) closely laminates there is waterproof layer (407), the one end fixedly connected with installation pole (408) of elastic layer (406), the inside surface fixedly connected with reset spring (409) of installation pole (408), the one end fixedly connected with block post (410) of reset spring (409).

2. A high tightness flange according to claim 1, wherein: the connecting flange (3) penetrates through the inner side surface of the front flange (1), and the connecting flange (3) is connected with the inner side surface of the front flange (1) in a sliding mode.

3. A high tightness flange according to claim 1, wherein: the outer side surface hinge of the rear flange (2) is connected with a rotating support frame (401), a rotating shaft (402) penetrates through the rotating support frames (401) on two sides, and the rotating shaft (402) is in sliding connection with the rotating support frames (401).

4. A high tightness flange according to claim 1, wherein: the number of the limiting plates (403) is two, the limiting plates are symmetrically distributed on the outer side surface of the rotating shaft (402), and the threaded columns (404) penetrate through the other side surface of the rotating support frame (401).

5. A high tightness flange according to claim 1, wherein: the elastic layer (406) is made of rubber, the waterproof layer (407) is made of polyvinyl fluoride, and the reset springs (409) are symmetrically distributed at two ends of the mounting rod (408).

6. A high tightness flange according to claim 1, wherein: the compressing mechanism (5) comprises a driving support frame (501), a compressing ring (502), a magnetic attraction block (503), a driven support frame (504) and an embedded groove (505), wherein the driving support frame (501) is hinged to the outer side surface of the front flange (1), one side surface of the driving support frame (501) is fixedly connected with the compressing ring (502), one end of the driving support frame (501) is fixedly connected with the magnetic attraction block (503), the outer side surface of the rear flange (2) is fixedly connected with the driven support frame (504), and the embedded groove (505) is formed in one side surface of the driven support frame (504).

7. A high tightness flange according to claim 6 wherein: the driven support frame (504) is made of stainless steel, and the magnetic attraction block (503) is in sliding connection with the embedded groove (505).