CN217177800U

CN217177800U - Sealing flange capable of effectively reducing pressure and preventing loosening

Info

Publication number: CN217177800U
Application number: CN202220886942.4U
Authority: CN
Inventors: 赵忠
Original assignee: Shandong Dongwei Petrochemical Technology Co ltd
Current assignee: Shandong Dongwei Petrochemical Technology Co ltd
Priority date: 2022-04-14
Filing date: 2022-04-14
Publication date: 2022-08-12
Anticipated expiration: 2032-04-14

Abstract

The utility model relates to a flange technical field just discloses a leakproofness flange that effective reduction pressure prevented pine and take off, including last flange mechanism, lower flange mechanism and coupling mechanism, it includes the flange to go up flange mechanism, the bottom of going up the flange is provided with the holding ring, the inside sliding connection of holding ring has the locking piece, the inside of going up the flange is provided with the drive wheel, lower flange mechanism includes the lower flange, the constant head tank has been seted up at the top of lower flange. This effective reduce pressure prevents the leakproofness flange that takes off, it is more convenient not only to make the flange joint location through the design of holding ring and constant head tank, has increased the leakproofness between the flange simultaneously, and the rethread is tight bolt soon, and the locking piece makes flange joint inseparable under the effect on constant head tank inclined plane to need not to exert great pressure to the flange and can sealing connection, thereby reached and to have effectively reduced joint pressure, connect convenient effect.

Description

Sealing flange capable of effectively reducing pressure and preventing loosening

Technical Field

The utility model relates to a flange technical field specifically is an effective leakproofness flange that reduces pressure and prevent pine and take off.

Background

A flange, also known as a flange collar or flange. The flange is a part for connecting the shafts, is used for connecting pipe ends, is connected with the flange or is connected with the flange, and is a detachable connection which is formed by connecting the flange, a gasket and a bolt together to form a group of combined sealing structures.

The existing flange sealing principle is extremely simple, the two sealing surfaces of the bolt extrude the flange gasket mutually to form sealing, the sealing can be guaranteed only by applying larger pressure between the flanges due to the fact that the sealing is achieved, the connection is inconvenient, the flange is easy to rigidly damage, the existing flange does not have the anti-loosening function, and in the actual use process, the nut is easy to loosen, so that the flange is loosened and even falls off, and the connection stability is poor.

SUMMERY OF THE UTILITY MODEL

Can effectively reduce connecting pressure for realizing above, connect the convenience, can prevent the pine and take off, the high purpose of connection stability, the utility model discloses a following technical scheme realizes: the utility model provides an effective reduce pressure prevents leakproofness flange that takes off, includes flange mechanism, lower flange mechanism and coupling mechanism, it includes the flange to go up flange mechanism, go up the bottom of flange and be provided with the holding ring, the inside sliding connection of holding ring has the locking piece, the locking piece is close to the inside one side fixedly connected with reset spring of holding ring, the inside of going up the flange is provided with the drive wheel, the keyway has been seted up to the inner wall of drive wheel, the outside meshing of drive wheel has the drive wheel, the inside sliding connection of going up the flange has the ejector pin, one side fixedly connected with screw rod that the ejector pin is close to the drive wheel, lower flange mechanism includes the lower flange, the constant head tank has been seted up at the top of lower flange, coupling mechanism includes bolt and nut, the outside of bolt is provided with the card key.

Furthermore, the upper flange and the lower flange are both provided with connecting holes, and the connecting holes in the upper flange are counter bores, so that bolts can be conveniently inserted and connected.

Furthermore, the driving wheel is clamped inside the counter bore, and transmission is stable.

Furthermore, the number of the locking blocks and the positioning grooves is the same as that of the connecting holes, so that the connection tightness is improved.

Furthermore, one side of the locking block, which is close to the ejector rod, is designed to be inclined, so that the ejector rod can drive the locking block to slide.

Furthermore, a threaded hole is formed in the driving wheel, and the screw rod is connected to the inside of the threaded hole in a threaded mode, so that the driving wheel can drive the screw rod to move when rotating.

Furthermore, the inner wall slope design of constant head tank, and the opening width is less than the biggest interior width, uses with the locking block cooperation, when making the locking block ability joint in the constant head tank, enables flange joint inseparable.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. this effective reduce pressure prevents the leakproofness flange that the pine takes off, it is more convenient not only to make the flange joint location through the design of holding ring and constant head tank, the leakproofness between the flange has been increased simultaneously, the tight bolt of rethread spiral, the bolt drives the drive wheel through card key and keyway and rotates, the drive wheel drives the drive wheel and rotates, the drive wheel drives the screw rod through the screw hole and removes, the screw rod drives the ejector pin and slides, the ejector pin promotes the locking piece and slides in to the constant head tank, the locking piece makes flange joint inseparable under the effect on constant head tank inclined plane, thereby need not to exert great pressure can sealing connection to the flange, thereby reached and to have effectively reduced joint pressure, connect convenient effect.

2. This leakproofness flange that effective reduction pressure prevents to loosen and take off, through the bolt of screwing, the bolt drives the drive wheel through card key and keyway and rotates, the drive wheel drives the drive wheel and rotates, the drive wheel drives the screw rod through the screw hole and removes, the screw rod drives the ejector pin and slides, the ejector pin promotes the locking block and slides in to the constant head tank, the locking block joint is in the constant head tank, the locking block makes the flange can not loosen and take off when using to reached and can prevent to loosen and take off, the high effect of connection stability.

Drawings

FIG. 1 is a schematic view of the overall connection of the structure of the present invention;

FIG. 2 is an enlarged schematic view of part A in FIG. 1 of the present invention;

FIG. 3 is a schematic view of the structure of the present invention showing the separation of the upper and lower flanges;

FIG. 4 is a schematic view of the flange of the present invention;

fig. 5 is a schematic view of the structural connection mechanism of the present invention.

In the figure: 1. an upper flange mechanism; 11. an upper flange; 12. a positioning ring; 13. a locking block; 14. a return spring; 15. a drive wheel; 16. a keyway; 17. a driving wheel; 18. a top rod; 19. a screw; 2. a lower flange mechanism; 21. a lower flange; 22. positioning a groove; 3. a connecting mechanism; 31. a bolt; 32. a nut; 33. and (6) a card key.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

An embodiment of the sealing flange that effectively reduces pressure to prevent loosening is as follows:

referring to fig. 1-5, a sealing flange for effectively reducing pressure and preventing loosening includes an upper flange mechanism 1, a lower flange mechanism 2 and a connecting mechanism 3, where the upper flange mechanism 1 includes an upper flange 11, the upper flange 11 and a lower flange 21 have connecting holes inside both, and the connecting holes inside the upper flange 11 are countersunk to facilitate the insertion of bolts 31, the bottom of the upper flange 11 is provided with a positioning ring 12, the inside of the positioning ring 12 is slidably connected with locking blocks 13, the number of the locking blocks 13 and the positioning grooves 22 is the same as that of the connecting holes, so as to improve the connection tightness, one side of the locking block 13 close to a top rod 18 is designed to be inclined, so that the top rod 18 can drive the locking block 13 to slide, one side of the locking block 13 close to the inside of the positioning ring 12 is fixedly connected with a return spring 14, the inside of the upper flange 11 is provided with a driving wheel 15, the driving wheel 15 is clamped inside the countersunk hole, so as to stabilize the transmission, the inner wall of the driving wheel 15 is provided with a key groove 16, the outer side of the driving wheel 15 is engaged with a driving wheel 17, the inside of the driving wheel 17 is provided with a threaded hole, and the screw rod 19 is connected in the threaded hole in a threaded manner, so that the screw rod 19 can be driven to move when the driving wheel 17 rotates, the inner part of the upper flange 11 is connected with the ejector rod 18 in a sliding manner, one side of the ejector rod 18 close to the driving wheel 17 is fixedly connected with the screw rod 19, the lower flange mechanism 2 comprises a lower flange 21, the top of the lower flange 21 is provided with a positioning groove 22, the inner wall of the positioning groove 22 is designed in an inclined manner, and the opening width is smaller than the maximum inner width, use with locking block 13 cooperation, when making locking block 13 ability joint in constant head tank 22, enable flange joint inseparable, coupling mechanism 3 includes bolt 31 and nut 32, and the outside of bolt 31 is provided with card key 33, when making bolt 31 can drive the pivoted of drive wheel 15, can prevent that bolt 31 from becoming flexible.

The working principle is as follows: the positioning ring 12 on the upper flange 11 is inserted into the positioning groove 22 of the lower flange 21, so that the flange connection positioning is more convenient, and the sealing performance between the flanges is increased, at the moment, the bolt 31 is inserted into the connecting hole, the bolt 31 drives the clamping key 33 to be inserted into the key groove 16, at the moment, the bolt 31 and the nut 32 are pre-screwed, then the nut 32 is fixed, the bolt 31 is tightly screwed, the bolt 31 drives the driving wheel 15 to rotate through the clamping key 33 and the key groove 16, the driving wheel 15 drives the driving wheel 17 to rotate, because the ejector rod 18 is connected inside the upper flange 11 in a sliding way, the screw rod 19 cannot rotate along with the driving wheel 17, the driving wheel 17 drives the screw rod 19 to move through a threaded hole, the screw rod 19 drives the ejector rod 18 to slide, the ejector rod 18 pushes the locking block 13 to slide into the positioning groove 22, the flange connection is tight under the action of the inclined surface of the positioning groove 22, and the double fastening of the connecting mechanism 3 and the locking block 13, the flange can be sealed without applying large pressure, and when the flange is used, the locking block 13 is clamped in the positioning groove 22, so that the flange cannot be loosened.

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

Claims

1. The utility model provides an effective leakproofness flange that reduces pressure and prevent to take off, includes flange mechanism (1), lower flange mechanism (2) and coupling mechanism (3), its characterized in that: the upper flange mechanism (1) comprises an upper flange (11), a positioning ring (12) is arranged at the bottom of the upper flange (11), a locking block (13) is connected to the inside of the positioning ring (12) in a sliding manner, a reset spring (14) is fixedly connected to one side, close to the inside of the positioning ring (12), of the locking block (13), a driving wheel (15) is arranged inside the upper flange (11), a key groove (16) is formed in the inner wall of the driving wheel (15), a driving wheel (17) is meshed to the outer side of the driving wheel (15), a push rod (18) is connected to the inside of the upper flange (11) in a sliding manner, a screw rod (19) is fixedly connected to one side, close to the driving wheel (17), of the push rod (18), the lower flange mechanism (2) comprises a lower flange (21), a positioning groove (22) is formed in the top of the lower flange (21), and the connecting mechanism (3) comprises a bolt (31) and a nut (32), and a clamping key (33) is arranged on the outer side of the bolt (31).

2. A pressure reducing anti-loosening sealing flange as claimed in claim 1, wherein: connecting holes are formed in the upper flange (11) and the lower flange (21), and the connecting holes in the upper flange (11) are counter-sunk holes.

3. A pressure reducing anti-loosening sealing flange as claimed in claim 2, wherein: the driving wheel (15) is clamped in the counter sink.

4. A pressure reducing anti-loosening sealing flange as claimed in claim 2, wherein: the number of the locking blocks (13) and the number of the positioning grooves (22) are the same as the number of the connecting holes.

5. A pressure reducing anti-loosening sealing flange as claimed in claim 1, wherein: the locking block (13) is obliquely designed at one side close to the ejector rod (18).

6. A pressure reducing anti-loosening sealing flange as claimed in claim 1, wherein: the inside of drive wheel (17) is seted up threaded hole, and screw rod (19) threaded connection is inside the threaded hole.

7. A pressure reducing anti-loosening sealing flange as claimed in claim 1, wherein: the inner wall of the positioning groove (22) is designed in an inclined mode, and the opening width is smaller than the maximum inner width.