CN214946455U

CN214946455U - Six-eccentric all-metal bidirectional pressure butterfly valve

Info

Publication number: CN214946455U
Application number: CN202121006431.0U
Authority: CN
Inventors: 洪小强
Original assignee: Shaanxi Qiangfu Valve Technology Co ltd
Current assignee: Shaanxi Qiangfu Valve Technology Co ltd
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2021-11-30
Anticipated expiration: 2031-05-12

Abstract

The utility model discloses a six eccentric all-metal bidirectional butterfly valve, which comprises a valve body, wherein a valve cavity is arranged in the valve body, a valve rod is arranged in the middle of the valve cavity, a butterfly plate is arranged in the middle of the valve rod, the valve body comprises a first flange, a valve seat and a second flange, a ring groove is arranged in the middle of the valve seat, an annular reinforcing welding piece is fixedly connected in the inner part of the ring groove, a first sealing pad is fixedly connected to one side of the inner wall of the valve seat, a second sealing pad is fixedly connected to the other side of the inner wall of the valve seat, a sealing washer is fixedly connected to the middle of the inner wall of the valve seat, and a waterproof pad is sleeved on the side of the butterfly plate; set up ring channel, annular enhancement soldering lug, central slot, first strengthening rib and second strengthening rib, improved eccentric butterfly valve's intensity, made things convenient for the operation of pipeline fluid control work.

Description

Six-eccentric all-metal bidirectional pressure butterfly valve

Technical Field

The utility model relates to an eccentric butterfly valve field specifically is six eccentric full metal two-way pressure butterfly valves.

Background

A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve which is opened and closed by rotating around a valve shaft, wherein a closing member (a valve clack or a butterfly plate) is a disk. 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. The pipe mainly plays a role in cutting off and throttling. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved. The eccentric butterfly valve is divided into a single eccentric butterfly valve, a double eccentric butterfly valve, a triple eccentric butterfly valve, and the like. The butterfly valve in which the axis of the valve rod is deviated from the center of the disk and the center of the body at the same time and the sealing pair is an oblique cone is called an eccentric butterfly valve.

The leakproofness of current eccentric butterfly valve is general, and valve body and pipe connection are inside under the state that is in high pressure in the use, and the phenomenon of seepage can take place in the gap between butterfly plate and the disk seat, leads to the control effect of whole butterfly valve to reduce, and current eccentric butterfly valve intensity is lower simultaneously, and long-time use can receive the phenomenon that various factors take place to split, and then influences the fluidic control of pipeline.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two-way pressure butterfly valve of six eccentric full metals to solve the current eccentric butterfly valve leakproofness that proposes in the above-mentioned background art generally, valve body and pipe connection are inside under the state of being in high pressure in the use, the phenomenon of seepage can take place in the gap between butterfly plate and the disk seat, lead to the control effect of whole butterfly valve to reduce, current eccentric butterfly valve intensity is lower simultaneously, long-time use can receive various factors to take place cracked phenomenon, and then influences the fluidic control of pipeline.

In order to achieve the above object, the utility model provides a following technical scheme: six two-way butterfly valves that press of eccentric all-metal, including the valve body, the transmission seat is installed at the top of valve body, rotatory handle is installed to one side of transmission seat, the valve pocket has been seted up to the inside of valve body, the valve pocket mid-mounting has the valve rod, the mid-mounting of valve rod has the butterfly plate, the valve body includes first flange, disk seat and second flange, just the first flange of one side fixedly connected with of disk seat, the opposite side fixedly connected with second flange of disk seat, the ring channel has been seted up at the middle part of disk seat, the soldering lug is strengthened to the inside fixedly connected with annular of ring channel, the first banding pad of one side fixedly connected with of disk seat inner wall, the opposite side fixedly connected with second banding pad of disk seat inner wall, the middle part fixedly connected with seal ring of disk seat inner wall, the avris cover of butterfly plate is equipped with waterproof pad.

As an optimal technical scheme of the utility model, valve body, transmission seat, rotatory handle, valve rod and butterfly plate are made by all-metal, the surface of valve body scribbles anticorrosive paint.

As a preferred technical scheme of the utility model, seal ring's middle part is seted up flutedly, waterproof middle part fixedly connected with strake that fills up, strake and recess match each other.

As a preferred technical scheme of the utility model, the central groove has been seted up at the middle part of butterfly plate, the first strengthening rib of middle part fixedly connected with in central groove, a plurality of second strengthening ribs of one side fixedly connected with of first strengthening rib.

As an optimal technical scheme of the utility model, first flange sets up with second flange symmetry, just first flange and second flange are made by stainless steel an organic whole.

As an optimal technical scheme of the utility model, first banding pad, second banding pad, seal ring and waterproof pad are high temperature resistant rubber integral type and make.

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

the butterfly plate, the valve seat, the first sealing edge pad, the second sealing edge pad, the sealing washer and the waterproof pad are arranged, the rotary handle is rotated in the use process to enable the transmission seat to drive the valve rod to rotate, thereby the butterfly plate rotates to be horizontal with the valve body, the sealing and closing work is completed, the butterfly plate is positioned in the valve seat during sealing, the first edge sealing pad and the second edge sealing pad are positioned at two sides to seal the two outer sides of the butterfly plate, the butterfly plate is matched to effectively block fluid from passing, meanwhile, the sealing washer in the middle of the valve seat and the waterproof pad on the butterfly plate are tightly extruded, so that the generation of gaps is reduced, and in addition, when the butterfly plate is combined with the valve seat to perform sealing work, the arranged groove and the convex edge strip can enable the sealing washer and the waterproof pad to be clamped with each other, so that sliding displacement is prevented, the sealing performance is further improved, the sealing performance of the butterfly valve is greatly improved, multiple sealing is suitable for high and low pressure conditions, and the control effect of the butterfly valve is improved; set up the ring channel, the soldering lug is strengthened to the annular, central groove, first strengthening rib and second strengthening rib, the whole valve body can be strengthened to the soldering lug can in use to ring channel internally mounted's annular, and the protection is supported to the butterfly plate to the inside first strengthening rib of central groove and second strengthening rib simultaneously, reduces cracked phenomenon, and global design has improved the intensity of eccentric butterfly valve greatly, has prolonged life, has made things convenient for the operation of pipeline fluid control work.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a structural diagram of the suction valve body of the present invention;

FIG. 3 is a view showing the structure of the valve seat of the present invention;

FIG. 4 is a view of the seal of the present invention;

fig. 5 is a structural diagram of the butterfly plate of the present invention.

In the figure: 1. a valve body; 2. a valve cavity; 3. a transmission seat; 4. rotating the handle; 5. a valve stem; 6. a butterfly plate; 7. a first flange; 8. a valve seat; 9. a second flange; 10. an annular groove; 11. an annular reinforcing lug; 12. a first edge sealing pad; 13. a second edge sealing pad; 14. a sealing gasket; 15. a groove; 16. a waterproof pad; 17. a convex edge strip; 18. a first reinforcing rib; 19. a second reinforcing rib; 20. a central slot.

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. 1-5, the present invention provides a six-eccentric all-metal bidirectional butterfly valve, which comprises a valve body 1, a transmission seat 3 is installed on the top of the valve body 1, a rotary handle 4 is installed on one side of the transmission seat 3, a valve cavity 2 is installed inside the valve body 1, a valve rod 5 is installed in the middle of the valve cavity 2, a butterfly plate 6 is installed in the middle of the valve rod 5, the valve body 1 comprises a first flange 7, a valve seat 8 and a second flange 9, the first flange 7 is fixedly connected to one side of the valve seat 8, the second flange 9 is fixedly connected to the other side of the valve seat 8, a ring-shaped groove 10 is installed in the middle of the valve seat 8, a ring-shaped reinforcing welding piece 11 is fixedly connected inside the ring-shaped groove 10, the ring-shaped reinforcing welding piece 11 installed inside the ring-shaped groove 10 can reinforce the whole valve body 1 in use, and the first reinforcing rib 18 and the second reinforcing rib 19 inside the central groove 20 support and protect the butterfly plate 6, the phenomenon of breakage is reduced, the strength of an eccentric butterfly valve is improved, the service life is prolonged, the operation of pipeline fluid control work is facilitated, a first sealing edge pad 12 is fixedly connected to one side of the inner wall of a valve seat 8, a second sealing edge pad 13 is fixedly connected to the other side of the inner wall of the valve seat 8, a sealing washer 14 is fixedly connected to the middle of the inner wall of the valve seat 8, a waterproof pad 16 is sleeved on the side edge of a butterfly plate 6, a rotating handle 4 is rotated in the using process to enable a driving seat 3 to drive a valve rod 5 to rotate, the butterfly plate 6 is rotated to be horizontal to a valve body 1, the sealing and closing work is completed, the butterfly plate 6 is positioned inside the valve seat 8 during sealing, the first sealing edge pad 12 and the second sealing edge pad 13 in the valve seat 8 are positioned on two sides to seal two outer sides of the butterfly plate 6, the butterfly plate 6 is matched to effectively prevent fluid from passing through, and meanwhile, the waterproof pad 14 in the middle of the valve seat 8 and the sealing washer 16 are tightly extruded, reduce the production in gap, combine to seal the during operation in butterfly plate 6 and disk seat 8 in addition, the recess 15 and the chimb strip 17 that set up can mutually support and make seal ring 14 and waterproof 16 mutual blocks of filling up, prevent to take place to slide and shift, have further improved the leakproofness, have improved the leakproofness of butterfly valve greatly, and multiple sealing is applicable to the situation of high low pressure, convenient to use.

Preferably, valve body 1, transmission seat 3, rotatory handle 4, valve rod 5 and butterfly plate 6 are made by all metals, and the surface of valve body 1 scribbles anticorrosive paint, sets up the corruption that anticorrosive paint reduces eccentric butterfly valve part.

Preferably, recess 15 has been seted up at seal ring 14's middle part, and waterproof gasket 16's middle part fixedly connected with flange strip 17, and flange strip 17 matches each other with recess 15, sets up recess 15 and flange strip 17 and combines to carry out the sealing operation in butterfly 6 and disk seat 8, can make seal ring 14 and waterproof gasket 16 block each other, prevents to slide the aversion, has further improved the leakproofness.

Preferably, the central slot 20 has been seted up at the middle part of butterfly plate 6, and the first strengthening rib 18 of middle part fixedly connected with of central slot 20, a plurality of second strengthening ribs 19 of one side fixedly connected with of first strengthening rib 18 set up first strengthening rib 18 and second strengthening rib 19 and support the protection to butterfly plate 6, and increase strength prevents the fracture.

Preferably, the first flange 7 and the second flange 9 are symmetrically arranged, the first flange 7 and the second flange 9 are made of stainless steel integrally, and the first flange 7 and the second flange 9 are arranged to facilitate the use and installation of the whole eccentric butterfly valve.

Preferably, the first edge sealing pad 12, the second edge sealing pad 13, the sealing washer 14 and the waterproof pad 16 are all made of high-temperature-resistant rubber in an integrated manner, and the high-temperature-resistant rubber is used for improving the high-temperature resistance of the sealing position.

When the six-eccentric all-metal bidirectional butterfly valve is used, the rotary handle 4 is rotated in the using process to enable the transmission seat 3 to drive the valve rod 5 to rotate, so that the butterfly plate 6 rotates to be level with the valve body 1, the sealing closing work is completed, the butterfly plate 6 is positioned in the valve seat 8 during sealing, the first sealing edge pad 12 and the second sealing edge pad 13 in the valve seat 8 are positioned at two sides to seal the two outer sides of the butterfly plate 6, the butterfly plate 6 is matched to effectively block fluid from passing through, meanwhile, the sealing washer 14 in the middle of the valve seat 8 and the waterproof pad 16 on the butterfly plate 6 are tightly extruded, the generation of gaps is reduced, in addition, when the butterfly plate 6 is combined with the valve seat 8 to perform sealing work, the arranged groove 15 and the convex edge strip 17 can be mutually matched to enable the sealing washer 14 and the waterproof pad 16 to be mutually clamped, the sliding displacement is prevented, the sealing performance is further improved, and the sealing performance of the butterfly valve is greatly improved, multiple sealed situation that is applicable to high and low pressure, convenient to use, the soldering lug 11 is strengthened to the annular of ring channel 10 internally mounted can strengthen whole valve body 1 in use, and the inside first strengthening rib 18 of central slot 20 and second strengthening rib 19 support the protection to butterfly plate 6 simultaneously, reduce cracked phenomenon, have improved the intensity of eccentric butterfly valve, have prolonged life, have made things convenient for the operation of pipeline fluid control work.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. Six eccentric full metal two-way pressure butterfly valves, including valve body (1), its characterized in that: the valve is characterized in that a transmission seat (3) is installed at the top of the valve body (1), a rotating handle (4) is installed on one side of the transmission seat (3), a valve cavity (2) is formed in the valve body (1), a valve rod (5) is installed in the middle of the valve cavity (2), a butterfly plate (6) is installed in the middle of the valve rod (5), the valve body (1) comprises a first flange (7), a valve seat (8) and a second flange (9), the first flange (7) is fixedly connected to one side of the valve seat (8), the second flange (9) is fixedly connected to the other side of the valve seat (8), a ring groove (10) is formed in the middle of the valve seat (8), an annular reinforcing welding piece (11) is fixedly connected to the inside of the ring groove (10), a first edge sealing pad (12) is fixedly connected to one side of the inner wall of the valve seat (8), and a second edge sealing pad (13) is fixedly connected to the other side of the inner wall of the valve seat (8), the middle part fixedly connected with seal ring (14) of disk seat (8) inner wall, the avris cover of butterfly plate (6) is equipped with waterproof pad (16).

2. The six-eccentric all-metal bidirectional pressure butterfly valve according to claim 1, wherein: the valve body (1), the transmission seat (3), the rotary handle (4), the valve rod (5) and the butterfly plate (6) are all made of metal, and the surface of the valve body (1) is coated with anticorrosive paint.

3. The six-eccentric all-metal bidirectional pressure butterfly valve according to claim 1, wherein: the middle part of the sealing washer (14) is provided with a groove (15), the middle part of the waterproof pad (16) is fixedly connected with a convex edge strip (17), and the convex edge strip (17) is matched with the groove (15).

4. The six-eccentric all-metal bidirectional pressure butterfly valve according to claim 1, wherein: the butterfly plate is characterized in that a central groove (20) is formed in the middle of the butterfly plate (6), a first reinforcing rib (18) is fixedly connected to the middle of the central groove (20), and a plurality of second reinforcing ribs (19) are fixedly connected to one side of the first reinforcing rib (18).

5. The six-eccentric all-metal bidirectional pressure butterfly valve according to claim 1, wherein: the first flange (7) and the second flange (9) are symmetrically arranged, and the first flange (7) and the second flange (9) are integrally made of stainless steel.

6. The six-eccentric all-metal bidirectional pressure butterfly valve according to claim 1, wherein: the first edge sealing pad (12), the second edge sealing pad (13), the sealing washer (14) and the waterproof pad (16) are all made of high-temperature-resistant rubber in an integrated mode.