CN210290791U

CN210290791U - Novel pneumatic butterfly valve

Info

Publication number: CN210290791U
Application number: CN201921258660.4U
Authority: CN
Inventors: 郭祥华
Original assignee: Jiangsu Sanli Anticorrosive Pipe Valve Co Ltd
Current assignee: Jiangsu Sanli Anticorrosive Pipe Valve Co Ltd
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-04-10
Anticipated expiration: 2029-08-05

Abstract

The utility model belongs to the technical field of the butterfly valve, especially, be a novel pneumatic type butterfly valve, including butterfly valve body, pneumatic actuator, rotary switch, valve rod, clamping device, butterfly plate, flange, bolt and anticorrosion device, valve body fixed mounting is in the upper end of butterfly valve body, pneumatic actuator fixed mounting is in the upper end of valve body, rotary switch rotates the upper end of connection at pneumatic actuator, valve rod fixed mounting is at rotary switch's lower extreme. The utility model discloses a set up anti-corrosion device, make flange and bolt obtain the protection, avoid moisture or acid-base liquid to cause the corrosion to flange and bolt in humid environment, lead to the condition that can not open flange and bolt smoothly, through setting up clamping device, can prevent under the effect of the metal lantern ring that the valve rod from taking place the skew in the rotation in-process position, lead to the butterfly plate to block dead condition easily at the switching process, prolonged the life of this pneumatic type butterfly valve.

Description

Novel pneumatic butterfly valve

Technical Field

The utility model relates to a butterfly valve technical field specifically is a novel pneumatic type butterfly valve.

Background

Pneumatic butterfly valve comprises pneumatic actuator and butterfly valve, and pneumatic butterfly valve is with doing the opening and close nature along with valve rod pivoted circular butterfly plate to the pneumatic valve of action is launched in the realization, mainly does the shut-off valve and uses, also designs into to have the function of adjusting or section valve and adjusting concurrently, and the use of present butterfly valve on the big well bore pipeline of low pressure is more and more, and pneumatic butterfly valve is categorised: stainless steel pneumatic butterfly valves, hard seal pneumatic butterfly valves, soft seal pneumatic butterfly valves, carbon steel pneumatic butterfly valves.

1. The existing pneumatic butterfly valve is usually fixed through a flange, when the butterfly valve needs to be disassembled and maintained, bolts on the flange are disassembled, and the butterfly valve can be disassembled, but the butterfly valve is usually arranged in a humid environment, so that the bolts and the flange can be corroded for a long time, the disassembly is influenced, and the butterfly valve cannot be disassembled smoothly for maintenance;

2. the valve rod of current pneumatic type butterfly valve leads to taking place the skew easily between valve rod and the valve body because self frequently rotates in the work, causes the butterfly plate to open and blocks easily, influences the life of butterfly valve.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a novel pneumatic type butterfly valve has solved the flange and the bolt of current pneumatic type butterfly valve and has received the problem that corrodes its dismantlement of influence easily.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel pneumatic type butterfly valve, includes butterfly valve body, pneumatic actuator, rotary switch, valve rod, clamping device, butterfly plate, flange, bolt and anticorrosion device, valve body fixed mounting is in the upper end of butterfly valve body, pneumatic actuator fixed mounting is in the upper end of valve body, rotary switch rotates the upper end of connecting at pneumatic actuator, valve rod fixed mounting is at rotary switch's lower extreme, the surface at the valve rod is established to clamping device cover, butterfly plate fixed mounting is at the lower extreme of valve rod, flange fixed connection is between butterfly valve body and valve body, the bolt runs through the setting between the flange, the surface at the flange is established to the anticorrosion device cover.

The anti-corrosion device comprises a first shell, a second shell is fixedly mounted at the front end of the first shell, an insert rod penetrates between the first shell and the second shell, a spring is fixedly mounted inside the upper end of the insert rod, a push rod is fixedly mounted at one end of the spring, a fixture block is fixedly mounted at one end of the push rod, and a through groove is formed in the inner sides of the first shell and the second shell.

As an optimal technical scheme of the utility model, clamping device includes the connecting rod, the one end fixed mounting of connecting rod has the metal lantern ring, the inboard of the metal lantern ring scribbles the wearing layer.

As an optimal technical scheme of the utility model, the wearing layer is wear-resisting ceramic coating, the metal lantern ring is the steel material.

As an optimal technical scheme of the utility model, the slot has all been seted up to the both sides of first shell, looks adaptation between the shape size of inserted bar and the slot.

As an optimal technical scheme of the utility model, the draw-in groove has all been seted up to the both sides of second shell, looks adaptation between the shape size of fixture block and the draw-in groove.

As an optimized technical scheme of the utility model, the surface of valve rod scribbles anticorrosive coating, and anticorrosive coating is epoxy coating.

(III) advantageous effects

Compared with the prior art, the utility model provides a novel pneumatic type butterfly valve possesses following beneficial effect:

1. this novel pneumatic type butterfly valve, through setting up anti-corrosion device, establish first shell and second shell cover at the flange surface, and fasten through the inserted bar, in the inserted bar insertion process, hold the push rod, loosen after inserting and finishing, the spring drives inside the push rod goes into the fixture block card into the second shell, make first shell and second shell obtain fixedly, when needing to maintain this butterfly valve, with first shell and second shell dismantle open can, make flange and bolt obtain the protection, avoid moisture or acid-base liquid to cause flange and bolt in humid environment, the corrosion leads to the condition of opening flange and bolt smoothly.

2. This novel pneumatic type butterfly valve through setting up clamping device, carries out the centre gripping to the valve rod under the cooperation of the connecting rod and the metal lantern ring, and the wearing layer can prevent that the valve rod from causing wearing and tearing to the metal lantern ring at the rotation in-process, can prevent that the valve rod from taking place the skew at the rotation in-process position under the effect of the metal lantern ring, leads to the butterfly plate to block dead condition easily at the switch in-process, has prolonged this pneumatic type butterfly valve's life.

Drawings

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

fig. 2 is an enlarged schematic structural view of a point a in fig. 1 according to the present invention;

FIG. 3 is a schematic top view of the cross-sectional structure of the clamping device of the present invention;

FIG. 4 is a schematic top view of the cross-sectional structure of the corrosion protection device of the present invention;

fig. 5 is an enlarged schematic structural diagram of the position B in fig. 4 according to the present invention.

In the figure: 1. a butterfly valve body; 2. a valve body; 3. a pneumatic actuator; 4. a rotary switch; 5. a valve stem; 6. a clamping device; 601. a connecting rod; 602. a metal collar; 603. a wear layer; 7. a butterfly plate; 8. a flange; 9. a bolt; 10. an anti-corrosion device; 1001. a first housing; 1002. a second housing; 1003. inserting a rod; 1004. a spring; 1005. a push rod; 1006. a clamping block; 1007. a through groove.

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.

Examples

Referring to fig. 1-5, the present invention provides the following technical solutions: the utility model provides a novel pneumatic type butterfly valve, including butterfly valve body 1, valve body 2, pneumatic actuator 3, rotary switch 4, valve rod 5, clamping device 6, butterfly plate 7, flange 8, bolt 9 and

anti-corrosion device

10, 2 fixed mounting of valve body are in butterfly valve body 1's upper end, 3 fixed mounting of pneumatic actuator are in the upper end of valve body 2, rotary switch 4 rotates the upper end of connecting at

pneumatic actuator

3, 5 fixed mounting of valve rod are at rotary switch 4's lower extreme, 6 covers of the cover of clamping device establish at valve rod 5's surface, 7 fixed mounting of butterfly plate are at valve rod 5's lower extreme, 8 fixed connection of flange are between butterfly valve body 1 and valve body 2, bolt 9 runs through the setting between flange 8, the surface at flange 8 is established to anti-corrosion device.

The anticorrosion device 10 comprises a first shell 1001, a second shell 1002 is fixedly mounted at the front end of the first shell 1001, an inserting rod 1003 penetrates between the first shell 1001 and the second shell 1002, a spring 1004 is fixedly mounted inside the upper end of the inserting rod 1003, a push rod 1005 is fixedly mounted at one end of the spring 1004, a clamping block 1006 is fixedly mounted at one end of the push rod 1005, and a through groove 1007 is formed in the inner sides of the first shell 1001 and the second shell 1002.

In the embodiment, the first housing 1001 and the second housing 1002 are sleeved on the outer surface of the flange 8, the inserting rod 1003 is inserted, the push rod 1005 is pressed in the inserting process, the push rod 1005 presses the spring 1004 to enable the fixture block 1006 at one end of the push rod 1005 to retract into the inserting rod 1003, after the inserting rod 1003 is inserted, the push rod 1005 is loosened to enable the spring 1004 to drive the fixture block 1006 at one end of the push rod 1005 to be clamped into the fixture groove of the second housing 1002, the first housing 1001 and the second housing 1002 are spliced together to protect the flange 8 and the bolt 9, when the butterfly valve needs to be disassembled, the push rod 1005 is pressed, the push rod 1005 drives the spring 1004 to enable the fixture block 1006 to retract, then the inserting rod 1003 is pulled out, the first housing 1001 and the second housing 1002 can be separated, then the flange 8 and the bolt 9 can be disassembled, the flange 8 and the bolt 9 are protected, and the flange 8 and the bolt 9 are prevented from being rusted by moisture or acid-alkali liquid in a humid environment, resulting in a situation where the flange 8 and the bolts 9 cannot be smoothly opened.

Specifically, the clamping device 6 comprises a connecting rod 601, one end of the connecting rod 601 is fixedly provided with a metal collar 602, and the inner side of the metal collar 602 is coated with a wear-resistant layer 603.

In this embodiment, when operation rotary switch 4 rotated valve rod 5, valve rod 5 can drive butterfly plate 7 and rotate, thereby realize opening or closing butterfly valve body 1, at the rotatory in-process of valve rod 5, connecting rod 601 stabilizes the centre gripping to valve rod 5 with the cooperation of metal lantern ring 602, wearing layer 603 can avoid valve rod 5 frequent rotation to cause wearing and tearing to metal lantern ring 602, can prevent that valve rod 5 from taking place the skew at rotation in-process position under the effect of metal lantern ring 602, lead to butterfly plate 7 in the dead condition of easy card of switching in-process, the life of this pneumatic type butterfly valve has been prolonged.

Specifically, the wear-resistant layer 603 is a wear-resistant ceramic coating, and the metal collar 602 is made of steel.

In this embodiment, the wear-resistant layer 603 can improve the wear-resistant characteristic of the metal sleeve ring 602, and the steel metal sleeve ring 602 is not easy to deform, so that the valve rod 5 can be clamped for a long time.

Specifically, slots are formed in both sides of the first housing 1001, and the shape and size of the insertion rod 1003 are matched with the slots.

In this embodiment, the insertion rod 1003 can be inserted into the first housing 1001 through the insertion slot and enter the second housing 1002.

Specifically, the second housing 1002 has slots on both sides thereof, and the shape and size of the clamping block 1006 are matched with the slots.

In this embodiment, after the inserting rod 1003 is inserted into the second housing 1002, the clamping block 1006 is clamped into the clamping groove, so that the first housing 1001 and the second housing 1002 are fastened, and the flange 8 is protected.

Specifically, the outer surface of the valve rod 5 is coated with an anticorrosive coating, and the anticorrosive coating is epoxy resin paint.

In this embodiment, anticorrosive coating can prevent that valve rod 5 from taking place the corrosion in the long-term working process, influencing valve rod 5's rotation.

The utility model discloses a theory of operation and use flow: the outer surface of the flange 8 is sleeved with the first shell 1001 and the second shell 1002, the inserting rod 1003 is inserted, the push rod 1005 is pressed in the inserting process, the push rod 1005 presses the spring 1004 to enable the clamping block 1006 at one end of the push rod 1005 to retract into the inserting rod 1003, after the inserting rod 1003 is inserted completely, the push rod 1005 is loosened, the spring 1004 drives the clamping block 1006 at one end of the push rod 1005 to be clamped into the clamping groove of the second shell 1002, the first shell 1001 and the second shell 1002 are spliced together, the flange 8 and the bolt 9 are protected, when the rotary switch 4 is operated to rotate the valve rod 5, the valve rod 5 can drive the butterfly plate 7 to rotate, the butterfly valve body 1 is opened or closed, in the rotating process of the valve rod 5, the connecting rod 601 is matched with the metal lantern ring 602 to firmly clamp the valve rod 5, and the wear-resistant layer 603 can prevent the valve rod 5 from frequently rotating to cause wear to.

Finally, it should be noted that: 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 described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a novel pneumatic type butterfly valve, includes butterfly valve body (1), valve body (2), pneumatic actuator (3), rotary switch (4), valve rod (5), clamping device (6), butterfly plate (7), flange (8), bolt (9) and anti corrosion device (10), its characterized in that: the butterfly valve is characterized in that the valve body (2) is fixedly arranged at the upper end of the butterfly valve body (1), the pneumatic actuator (3) is fixedly arranged at the upper end of the valve body (2), the rotary switch (4) is rotatably connected to the upper end of the pneumatic actuator (3), the valve rod (5) is fixedly arranged at the lower end of the rotary switch (4), the clamping device (6) is sleeved on the outer surface of the valve rod (5), the butterfly plate (7) is fixedly arranged at the lower end of the valve rod (5), the flange (8) is fixedly connected between the butterfly valve body (1) and the valve body (2), the bolt (9) is arranged between the flanges (8) in a penetrating manner, and the anti-corrosion device (10) is sleeved on the outer surface of the flange (8);

the anticorrosion device (10) comprises a first shell (1001), a second shell (1002) is fixedly mounted at the front end of the first shell (1001), an inserting rod (1003) penetrates between the first shell (1001) and the second shell (1002), a spring (1004) is fixedly mounted inside the upper end of the inserting rod (1003), a push rod (1005) is fixedly mounted at one end of the spring (1004), a clamping block (1006) is fixedly mounted at one end of the push rod (1005), and a through groove (1007) is formed in the inner side of the first shell (1001) and the inner side of the second shell (1002).

2. The novel pneumatic butterfly valve of claim 1, wherein: the clamping device (6) comprises a connecting rod (601), a metal sleeve ring (602) is fixedly mounted at one end of the connecting rod (601), and a wear-resistant layer (603) is coated on the inner side of the metal sleeve ring (602).

3. The novel pneumatic butterfly valve of claim 2, wherein: the wear-resistant layer (603) is made of wear-resistant ceramic paint, and the metal lantern ring (602) is made of steel.

4. The novel pneumatic butterfly valve of claim 1, wherein: slots are formed in the two sides of the first shell (1001), and the shape and the size of the inserting rod (1003) are matched with the slots.

5. The novel pneumatic butterfly valve of claim 1, wherein: clamping grooves are formed in the two sides of the second shell (1002), and the clamping blocks (1006) are matched with the clamping grooves in shape and size.

6. The novel pneumatic butterfly valve of claim 1, wherein: the outer surface of the valve rod (5) is coated with an anticorrosive coating which is epoxy resin paint.