CN216590000U

CN216590000U - Expansion type flange butterfly valve

Info

Publication number: CN216590000U
Application number: CN202220008499.0U
Authority: CN
Inventors: 林依谋; 林新金; 梁舒斐
Original assignee: Foster Valve Group Co ltd
Current assignee: Foster Valve Group Co ltd
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2022-05-24
Anticipated expiration: 2032-01-05

Abstract

The utility model discloses an extension type flange butterfly valve, including the valve body, the one end fixed connection back ring flange of valve body, the other end fixed connection front ring flange of valve body, the outer wall of back ring flange and the outer wall of front ring flange have all cup jointed and have extended the dish, and the circumference outer wall of extending the dish is equipped with a plurality of shoulder holes, and threaded connection has hexagon socket head cap screw in the shoulder hole, and one side of extending the dish is equipped with a plurality of extension mounting holes, the one end of back ring flange and the one end of front ring flange all are equipped with a plurality of body mounting holes, and the body mounting hole aligns with the extension mounting hole, the circumference outer wall of back ring flange and the circumference outer wall of front ring flange are equipped with a plurality of screw holes, and the screw hole aligns with the shoulder hole; the utility model discloses a through will extend set cover can be applicable to the connection between the different pipelines of the same external diameter of two internal diameters through the setting on the circumference of back ring flange and preceding ring flange, improve the suitability of flange butterfly valve.

Description

Expansion type flange butterfly valve

Technical Field

The utility model particularly relates to the technical field of valves, especially, relate to an extension type flange butterfly valve.

Background

The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, and mainly plays a role in cutting off and throttling on a pipeline. The butterfly valve is a valve which uses the disc type opening and closing piece to rotate back and forth by about 90 degrees to open, close or adjust the medium flow.

At present, most of the existing flange butterfly valves have the following defects: the existing flange butterfly valve is only suitable for being connected with a pipeline with the same inner diameter and outer diameter as the flange butterfly valve, but not suitable for being connected with a pipeline with the same inner diameter and outer diameter as the flange butterfly valve, and can not meet the requirements of people.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an expanded flange butterfly valve.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an extension type flange butterfly valve, includes the valve body, ring flange behind the one end of valve body, ring flange before the other end of valve body, the outer wall of back ring flange and the outer wall of preceding ring flange have all cup jointed and have expanded the dish, and the circumference outer wall of expanding the dish is equipped with a plurality of shoulder holes, and the threaded connection has hexagon socket head cap screw in the shoulder hole, and one side of expanding the dish is equipped with a plurality of extension mounting holes.

Furthermore, one end of the rear flange plate and one end of the front flange plate are respectively provided with a plurality of body mounting holes, and the body mounting holes are aligned with the expansion mounting holes.

Furthermore, the circumference outer wall of the rear flange plate and the circumference outer wall of the front flange plate are provided with a plurality of threaded holes, the threaded holes are aligned with the stepped holes, and the hexagon socket head cap screw is in threaded connection with the threaded holes.

Furthermore, one end of the rear flange plate and one end of the front flange plate are both embedded with sealing gaskets.

Furthermore, the top of valve body rotates and pegs graft there is the valve rod, and the bottom mounting of valve rod has the valve block, and the valve block is at the internal rotation of valve.

Furthermore, the top end of the valve rod is fixed with a handle through a bolt, and the outer wall of the handle is bonded with an anti-slip pad.

Furthermore, friction pads are bonded on the circumferential outer wall of the rear flange and the circumferential outer wall of the front flange.

The utility model has the advantages that:

1. the utility model discloses a to extend the dish cover and can be applicable to the connection between the different pipelines of the same external diameter of two internal diameters with the setting on the circumference of preceding ring flange, improve the suitability of flange butterfly valve.

2. The utility model discloses a setting up of body mounting hole and screw hole can carry out the connection that stabilizes to flange butterfly valve and outer tube pipeline to the later stage is to the use of flange butterfly valve, convenient and fast.

3. The utility model discloses a sealed setting up of filling up can improve the leakproofness that the flange butterfly valve is connected, reduces the infiltration of flange butterfly valve to lead to the fact corruption, extension flange butterfly valve's life to the flange butterfly valve.

Drawings

Fig. 1 is a schematic structural view of a valve body of an extended flange butterfly valve provided by the present invention;

fig. 2 is a schematic view of an expanding disc structure of an expanding flange butterfly valve provided by the utility model;

fig. 3 is the utility model provides a local mounting structure schematic diagram of extension type flange butterfly valve.

In the figure: 1. a valve body; 2. a rear flange plate; 3. a front flange plate; 4. a body mounting hole; 5. a gasket; 6. a handle; 7. a valve stem; 8. a threaded hole; 9. expanding the disc; 10. expanding the mounting hole; 11. a stepped hole; 12. a hexagon socket head cap screw; 13. a friction pad.

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. It should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and their meaning in the context of this patent may be understood by those skilled in the art as appropriate.

Referring to fig. 1-3, an extension type flange butterfly valve includes valve body 1, and the welding of the one end of valve body 1 has back ring flange 2, and the welding of the other end of valve body 1 has preceding ring flange 3, and the outer wall of back ring flange 2 and the outer wall of preceding ring flange 3 have all cup jointed and have expanded dish 9, and the circumference outer wall of expanding dish 9 is equipped with a plurality of shoulder holes 11, and shoulder hole 11 female connection has hexagon socket head cap screw 12, and one side of expanding dish 9 is equipped with a plurality of mounting holes 10 that expand.

One end of the rear flange 2 and one end of the front flange 3 are respectively provided with a plurality of body mounting holes 4, the body mounting holes 4 are aligned with the expanded mounting holes 10, the circumferential outer wall of the rear flange 2 and the circumferential outer wall of the front flange 3 are respectively provided with a plurality of threaded holes 8, the valve body 1 is connected between two pipelines to be connected, and then the valve body is fixed through the body mounting holes 4 and the threaded holes 8, the threaded holes 8 are aligned with the stepped holes 11, the hexagon socket head cap bolts 12 are in threaded connection with the threaded holes 8, one end of the rear flange 2 and one end of the front flange 3 are respectively embedded with the sealing gaskets 5, so that the sealing performance of the flange butterfly valve connection is improved, the water seepage of the flange butterfly valve is reduced, the flange is prevented from being corroded, the top of the valve body 1 is rotatably inserted with the valve rod 7, the bottom end of the valve rod 7 is fixed with the valve block, the valve block rotates in the valve body 1, the top end of the valve rod 7 is fixed with the handle 6 through the bolts, pulling handle 6 and driving valve rod 7 and rotate to drive the circulation of valve block rotation control valve body 1, the outer wall bonding of handle 6 has the slipmat, and the circumference outer wall of back ring flange 2 and the circumference outer wall of preceding ring flange 3 all bond friction pad 13, have increased the stability between back ring flange 2 and preceding ring flange 3 and the expansion dish 9.

The working principle of the embodiment is as follows: when the flange butterfly valve is connected with a pipeline with the same inner diameter and outer diameter, the valve body 1 is connected between two pipelines to be connected and then fixed through the body mounting hole 4 and the threaded hole 8, and when the valve is used, the handle 6 is pulled to drive the valve rod 7 to rotate, so that the valve block is driven to rotate to control the circulation of the valve body 1;

when the flange butterfly valve is connected with a pipeline with the same inner diameter and different outer diameters, the expansion disc 9 is sleeved on the circumferences of the rear flange plate 2 and the front flange plate 3, the expansion mounting hole 10 is aligned with the body mounting hole 4, the stepped hole 11 is aligned with the threaded hole 8, and then the flange butterfly valve is fixed by using the hexagon socket head cap screw 12.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an extension type flange butterfly valve, includes valve body (1), its characterized in that, flange dish (2) behind the one end fixedly connected with of valve body (1), flange dish (3) before the other end fixedly connected with of valve body (1), the outer wall of back flange dish (2) and the outer wall of preceding flange dish (3) have all cup jointed and have expanded dish (9), and the circumference outer wall that expands dish (9) is equipped with a plurality of shoulder holes (11), and shoulder hole (11) female connection has hexagon socket head cap screw (12), and one side of expanding dish (9) is equipped with a plurality of mounting holes (10) of expanding.

2. An extended flange butterfly valve as claimed in claim 1, wherein: one end of the rear flange plate (2) and one end of the front flange plate (3) are respectively provided with a plurality of body mounting holes (4), and the body mounting holes (4) are aligned with the expansion mounting holes (10).

3. An extended flange butterfly valve as claimed in claim 1, wherein: the circumference outer wall of back ring flange (2) and the circumference outer wall of preceding ring flange (3) are equipped with a plurality of screw holes (8), and screw hole (8) align with shoulder hole (11), and hexagon socket head cap screw (12) and screw hole (8) threaded connection.

4. An extended flange butterfly valve as claimed in claim 1, wherein: one end of the rear flange plate (2) and one end of the front flange plate (3) are both embedded with a sealing gasket (5).

5. An extended flange butterfly valve as claimed in claim 1, wherein: the top of valve body (1) rotates to peg graft and has valve rod (7), and the bottom mounting of valve rod (7) has the valve block, and the valve block is at valve body (1) internal rotation.

6. An extended flange butterfly valve as claimed in claim 5, wherein: the top end of the valve rod (7) is fixed with a handle (6) through a bolt, and the outer wall of the handle (6) is bonded with an anti-slip pad.

7. An extended flange butterfly valve as claimed in claim 4, wherein: and friction pads (13) are bonded on the circumferential outer wall of the rear flange (2) and the circumferential outer wall of the front flange (3).