CN212298040U

CN212298040U - Flange sealing structure

Info

Publication number: CN212298040U
Application number: CN202020854834.XU
Authority: CN
Inventors: 潘志田
Original assignee: Tianjin Qiyuan Precision Mould Co ltd
Current assignee: Tianjin Qiyuan Precision Mould Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-01-05
Anticipated expiration: 2030-05-21

Abstract

The utility model discloses a flange seal structure, including first ring flange and second ring flange, the opposite face activity overlap joint of first ring flange and second ring flange, the outside of first ring flange and second ring flange all runs through and is equipped with the screw hole, the inside activity of screw hole is provided with the bolt. The utility model discloses a set up the grafting piece, make the activity of grafting piece peg graft inside the inserting groove, utilize expanding spring to restore to the throne and stretch and drive fly leaf and the inseparable laminating of inserting groove inner wall, thereby make the grafting piece seal between first ring flange and the second ring flange through the inserting groove, still through setting up the connecting rod, promote the piston, the rubber sleeve, air vent and seal groove, make the fly leaf skew drive the piston downstream through the connecting rod, it gets into inside the rubber sleeve to promote piston extrusion cavity inside air through the air vent, closely laminate with the seal groove after the rubber sleeve inflation, thereby make the sealed of grafting piece more firm, the result of use is better.

Description

Flange sealing structure

Technical Field

The utility model relates to a ring flange technical field specifically is a ring flange seal structure.

Background

The flange plate is also called flange plate or flange, and the flange plate is a part for connecting the pipe and is used for connecting the pipe ends; flanges on the inlet and the outlet of the equipment are also used for connecting the two pieces of equipment (such as speed reducer flanges), and flange connection or flange joints refer to detachable connection which is formed by connecting a flange, a gasket and a bolt with each other to form a group of combined sealing structures;

the conventional apparatus has the following disadvantages:

at present, most of the existing flange plates are sealed through gaskets, and the looseness exists during bolt fixing, so that the sealing between the flange plates is not tight easily, and the using effect is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ring flange seal structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a flange plate sealing structure comprises a first flange plate and a second flange plate, wherein opposite surfaces of the first flange plate and the second flange plate are movably lapped, threaded holes are formed in the outer sides of the first flange plate and the second flange plate in a penetrating mode, bolts are movably arranged in the threaded holes, fixing nuts are movably arranged at the right ends of the bolts, the left side surface of each fixing nut is movably lapped with the right side surface of the second flange plate, an inserting block is fixedly arranged on the left side surface of the second flange plate, an inserting groove is formed in the right side surface of the first flange plate, the left end of each inserting block is movably inserted into the inserting groove, a movable plate is movably arranged at the left end of the upper surface of each inserting block, a connecting rod is movably arranged in the middle of the lower surface of the movable plate, a cavity is formed in the middle of each inserting block, and a movable hole is formed in the top, the one end that the fly leaf was kept away from to the connecting rod runs through the inside of activity hole and extends to the inside of cavity, the connecting rod is located the fixed promotion piston that is provided with of the inside one end of cavity, the side that promotes the piston closely laminates with the inside wall of cavity, the lower fixed surface of grafting piece is provided with the rubber sleeve, the bottom of cavity is run through and is equipped with the air vent, the inside of air vent all communicates with the inside of cavity and the inside of rubber sleeve, the seal groove has been seted up to the lower surface of inserting groove, the surface of rubber sleeve closely laminates with the inner wall of seal groove.

Preferably, the first flange plate and the second flange plate are identical in size and shape, and communication holes are formed in the middle portions of the first flange plate and the second flange plate in a penetrating mode.

Preferably, the number of the bolts is four, and the four bolts are uniformly distributed in the outer side of the first flange plate at equal intervals.

Preferably, the lateral section of the insertion block and the lateral section inside the insertion groove are both annular, and the right end of the movable plate is movably overlapped with the upper surface inside the insertion groove.

Preferably, the middle part of the left side surface of the inserting block is fixedly provided with a water-swelling block, the left side surface of the inside of the inserting groove is provided with a clamping groove, and the left end of the water-swelling block is movably inserted in the clamping groove.

Preferably, the lower fixed surface at fly leaf right-hand member is provided with expanding spring, expanding spring's bottom and the last fixed surface of inserted block are connected.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up the grafting piece, the inserting groove, fly leaf and expanding spring, make the activity of grafting piece peg graft inside the inserting groove, utilize expanding spring to reset and stretch and drive fly leaf and inserting groove inner wall and closely laminate, thereby make the grafting piece seal between first ring flange and the second ring flange through the inserting groove, still through setting up connecting rod, push piston, rubber sleeve, air vent and seal groove, make the fly leaf skew drive the push piston through the connecting rod and move downwards, push piston extrusion cavity inside air enters the rubber sleeve through the air vent, closely laminate with the seal groove after the rubber sleeve inflation, thereby make the sealing of grafting piece more firm, the result of use is better;

2. the utility model discloses a set up and meet water inflation piece and chucking groove for meet water inflation piece and meet water back inflation and closely seal to chucking inslot portion, secondary seal makes between first ring flange and the second ring flange sealed effect better, still through setting up screw hole, bolt and fixation nut, makes bolt screw thread peg graft at threaded hole inside, utilizes fixation nut to cup joint and rotates on the bolt surface, thereby makes between first ring flange and the second ring flange fixed convenient and fast, and it is more convenient to use.

Drawings

FIG. 1 is a front sectional view of the overall structure of a flange sealing structure of the present invention;

fig. 2 is an enlarged view of a structure at a position a in the structure diagram 1 of the flange plate seal of the present invention;

fig. 3 is a side view of the overall structure of the flange sealing structure of the present invention.

In the figure: 1. a first flange plate; 2. a second flange plate; 3. a threaded hole; 4. a bolt; 5. fixing a nut; 6. a communicating hole; 7. an insertion block; 8. inserting grooves; 9. a movable plate; 10. a connecting rod; 11. a cavity; 12. a movable hole; 13. pushing the piston; 14. a rubber sleeve; 15. a vent hole; 16. a sealing groove; 17. a water-swellable block; 18. a clamping groove; 19. a telescoping spring.

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.

Referring to fig. 1-3, the present invention provides a technical solution: a flange plate sealing structure comprises a first flange plate 1 and a second flange plate 2, opposite surfaces of the first flange plate 1 and the second flange plate 2 are movably overlapped, threaded holes 3 are respectively arranged on the outer sides of the first flange plate 1 and the second flange plate 2 in a penetrating manner, bolts 4 are inserted into internal threads of the threaded holes 3, fixing nuts 5 are sleeved on right end threads of the bolts 4, the left side surface of each fixing nut 5 is movably overlapped with the right side surface of the second flange plate 2, an inserting block 7 is fixedly connected to the left side surface of the second flange plate 2, an inserting groove 8 is formed in the right side surface of the first flange plate 1, the left end of the inserting block 7 is movably inserted into the inserting groove 8, a movable plate 9 is movably hinged to the left end of the upper surface of the inserting block 7, a connecting rod 10 is movably hinged to the middle part of the lower surface of the movable plate 9, a cavity 11 is formed in the middle part of, one end that fly leaf 9 was kept away from to connecting rod 10 runs through the inside of activity hole 12 and extends to the inside of cavity 11, connecting rod 10 is located the inside one end fixedly connected with of cavity 11 and promotes piston 13, the side that promotes piston 13 closely laminates with the inside wall of cavity 11, the lower fixed surface of grafting piece 7 installs rubber sleeve 14, the bottom of cavity 11 is run through and is equipped with air vent 15, the inside of air vent 15 all communicates with the inside of cavity 11 and the inside of rubber sleeve 14, seal groove 16 has been seted up to the lower surface of inserting groove 8, the surface of rubber sleeve 14 closely laminates with the inner wall of seal groove 16.

The first flange plate 1 and the second flange plate 2 are identical in size and shape, and communication holes 6 are formed in the middle of the first flange plate 1 and the middle of the second flange plate 2 in a penetrating mode.

The number of the bolts 4 is four, and the four bolts 4 are uniformly distributed on the inner part of the outer side of the first flange plate 1 at equal intervals, so that the first flange plate 1 and the second flange plate 2 are fixed more firmly.

The side section of the insertion block 7 and the side section inside the insertion groove 8 are both annular, and the right end of the movable plate 9 is movably overlapped with the upper surface inside the insertion groove 8, so that the insertion block 7 can seal a gap between the first flange plate 1 and the second flange plate 2.

The middle part fixedly connected with water-swellable block 17 of grafting piece 7 left surface, chucking groove 18 has been seted up to the inside left surface of inserting groove 8, and the left end activity of water-swellable block 17 is pegged graft in the inside of chucking groove 18.

The lower surface of the right end of the movable plate 9 is fixedly connected with an expansion spring 19, and the bottom end of the expansion spring 19 is fixedly connected with the upper surface of the insertion block 7.

The working principle is as follows: when the utility model is used, the screw holes 3 on the surfaces of the first flange plate 1 and the second flange plate 2 are aligned and then movably jointed, the screw thread of the bolt 4 is inserted into the screw hole 3, the fixing nut 5 is sleeved on the surface of the right end of the bolt 4 and rotates, the fixing nut 5 moves leftwards by utilizing the dislocation of the screw thread of the inner wall and the screw thread on the surface of the bolt 4, the fixing nut 5 pushes the second flange plate 2 to move towards the first flange plate 1 and tightly jointed, wherein the second flange plate 2 drives the splicing block 7 to movably insert into the splicing groove 8, the right end of the top extrusion movable plate 9 inside the splicing groove 8 rotates downwards, the movable plate 9 extrudes the expansion spring 19 to compress, the expansion spring 19 resets and expands to drive the movable plate 9 to reversely rotate, so that the upper surface of the movable plate 9 is tightly jointed with the upper surface inside the splicing groove 8, the splicing is firmer, and the, connecting rod 10 drives and promotes piston 13 downstream, it is inside that the inside gas of promotion piston 13 extrusion cavity 11 gets into rubber sleeve 14 through air vent 15, the inside gas of rubber sleeve 14 increases, volume inflation, make the surface of rubber sleeve 14 closely laminate with the surface of seal groove 16 and seal, in addition, outer splice block 7 drives inside water-swelling piece 17 activity inserts chucking groove 18, when water reveals through the gap of seal groove 16, water-swelling piece 17 water-swelling volume grow, seal and block the space in chucking groove 18 inside.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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 a ring flange seal structure, includes first ring flange (1) and second ring flange (2), its characterized in that: the opposite surfaces of the first flange plate (1) and the second flange plate (2) are movably overlapped, a threaded hole (3) penetrates through the outer sides of the first flange plate (1) and the second flange plate (2), a bolt (4) is movably arranged in the threaded hole (3), a fixing nut (5) is movably arranged at the right end of the bolt (4), the left side surface of the fixing nut (5) is movably overlapped with the right side surface of the second flange plate (2), an inserting block (7) is fixedly arranged on the left side surface of the second flange plate (2), an inserting groove (8) is formed in the right side surface of the first flange plate (1), the left end of the inserting block (7) is movably inserted in the inserting groove (8), a movable plate (9) is movably arranged at the left end of the upper surface of the inserting block (7), and a connecting rod (10) is movably arranged in the middle of the lower surface of the movable plate (9), a cavity (11) is arranged in the middle of the insertion block (7), a movable hole (12) is arranged at the top of the insertion block (7) in a penetrating way, one end of the connecting rod (10) far away from the movable plate (9) penetrates through the interior of the movable hole (12) and extends to the interior of the cavity (11), one end of the connecting rod (10) positioned in the cavity (11) is fixedly provided with a pushing piston (13), the side surface of the pushing piston (13) is tightly attached to the inner side wall of the cavity (11), a rubber sleeve (14) is fixedly arranged on the lower surface of the insertion block (7), a vent hole (15) is arranged at the bottom of the cavity (11) in a penetrating way, the inside of the vent hole (15) is communicated with the inside of the cavity (11) and the inside of the rubber sleeve (14), the lower surface of inserting groove (8) has seted up seal groove (16), the surface of rubber sleeve (14) closely laminates with the inner wall of seal groove (16).

2. The flange sealing structure according to claim 1, wherein: the first flange plate (1) and the second flange plate (2) are identical in size and shape, and communicating holes (6) are formed in the middle portions of the first flange plate (1) and the second flange plate (2) in a penetrating mode.

3. The flange sealing structure according to claim 1, wherein: the number of the bolts (4) is four, and the four bolts (4) are uniformly distributed in the outer side of the first flange plate (1) at equal intervals.

4. The flange sealing structure according to claim 1, wherein: the side section of the insertion block (7) and the side section inside the insertion groove (8) are both annular, and the right end of the movable plate (9) is movably overlapped with the upper surface inside the insertion groove (8).

5. The flange sealing structure according to claim 1, wherein: the middle part of the left side surface of the insertion block (7) is fixedly provided with a water-swelling block (17), the left side surface inside the insertion groove (8) is provided with a clamping groove (18), and the left end of the water-swelling block (17) is movably inserted inside the clamping groove (18).

6. The flange sealing structure according to claim 1, wherein: the lower surface of the right end of the movable plate (9) is fixedly provided with an expansion spring (19), and the bottom end of the expansion spring (19) is fixedly connected with the upper surface of the insertion block (7).