CN211574283U

CN211574283U - Improved fluorine-lined butt-clamping butterfly valve

Info

Publication number: CN211574283U
Application number: CN202020213045.8U
Authority: CN
Inventors: 陈继松
Original assignee: Shanghai Shangzhou Valve Manufacture Co ltd
Current assignee: Shanghai Shangzhou Valve Manufacture Co ltd
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2020-09-25
Anticipated expiration: 2030-02-26

Abstract

The utility model discloses an improved fluorine lining opposite-clamping butterfly valve, the upper end of the valve body is provided with a connecting channel, the connecting channel is internally provided with a sliding sleeve, the circular grooves arranged at the upper part and the lower part inside the valve body are respectively provided with a disc spring and a backing ring, the bottom end of the valve body is provided with a shaft hole, two sides of the valve body are provided with connecting seats, the lower surface of a linkage seat is connected with the top end of the valve body, the upper surface of the linkage seat is provided with a cover plate through a bolt, the top end and the bottom end of the disc plate are respectively arranged in the circular grooves arranged at the upper part and the lower part inside the valve body and are connected with the backing ring, the joint of the top end and the bottom end of the disc plate and the backing ring is provided with a PTFE sealing ring, the top end of an upper valve rod is provided with a first bevel gear and is arranged in the linkage seat, the upper end part of the upper, the upper valve rod is ensured not to leak, and the service life is greatly prolonged.

Description

Improved fluorine-lined butt-clamping butterfly valve

Technical Field

The utility model relates to the field of machinary, especially, relate to the valve, specifically be a modified lining fluorine butt clamp butterfly valve.

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 butterfly valve mainly plays a role in cutting off and throttling on a pipeline, and the butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly valve body in the valve body, so that the opening and closing or adjusting purpose is achieved.

The condition that the leakage easily takes place for the valve rod and the valve body junction after traditional butt clamp butterfly valve uses a period to current outer fluoroplastics of butt clamp butterfly valve also is used for taking place to drop after using a period, thereby influences the use, consequently, a technique that improves is needed to solve this problem that exists among the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an improved fluorine lining butt clamp butterfly valve, which compensates the sealing specific pressure by arranging a disk spring and a backing ring at the upper end and the lower end of a valve body, ensures that the upper valve rod does not leak outwards, and greatly prolongs the service life; the equal cladding of dish board outside and valve body inboard has fluoroplastics, and the corrosive medium such as acid, alkali that the valve can be able to bear or endure any concentration to the cladding is in the fluoroplastics in the dish board outside, cooperatees through the recess of arch with disk seat top and bottom, and the fastness improves greatly, is difficult for taking place the condition that the dislocation drops, in order to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an improved fluorine lining butt-clamping butterfly valve comprises a valve body, a linkage seat, a valve rod, a disc plate and a hand wheel;

the valve comprises a valve body, wherein a connecting channel is arranged at the upper end of the valve body, a sliding sleeve is arranged in the connecting channel, the valve body is of an annular structure, circular grooves are formed in the upper part and the lower part of the interior of the valve body, disc springs and backing rings are arranged in the circular grooves formed in the upper part and the lower part of the interior of the valve body, a shaft hole is formed in the bottom end of the valve body, and connecting seats are arranged on two sides of the valve body;

the lower surface of the linkage seat is connected with the top end of the valve body, and the upper surface of the linkage seat is provided with a cover plate through a bolt;

the upper end of the inside of the disc plate is provided with an upper end valve rod hole, the lower end of the inside of the disc plate is provided with a lower end valve rod hole, the top end and the bottom end of the disc plate are respectively arranged in circular grooves formed in the upper portion and the lower portion of the inside of the valve body and are connected with the backing ring, and PTFE sealing rings are arranged at the joints of the top end and the bottom end of the disc plate and the backing ring;

the valve rod comprises an upper valve rod and a lower valve rod, a first bevel gear is arranged at the top end of the upper valve rod and is arranged in the linkage seat, the upper end of the upper valve rod is arranged in a connecting channel at the upper end of the valve body and is connected with the sliding sleeve, the bottom end of the upper valve rod is arranged in an upper valve rod hole of the valve body, the top end of the lower valve rod is arranged in a lower valve rod hole of the valve body, and the bottom end of the lower valve rod is arranged in a shaft hole at the bottom of the;

the hand wheel, the hand wheel links to each other with the connecting rod, connecting rod one end is provided with the second bevel gear and sets up in the linkage seat, the second bevel gear meshes with first bevel gear.

Preferably, the utility model provides a pair of modified lining fluorine butt clamp butterfly valve, wherein, the outside surface cladding of dish board has first fluoroplastics, the intermediate position upper end and the lower extreme of dish board all are provided with the recess, first fluoroplastics's top and bottom are provided with the arch and cooperate with the recess of dish board upper end and lower extreme, and the fastness improves greatly, the difficult condition that takes place the dislocation and drop.

Preferably, the utility model provides a pair of modified lining fluorine is to pressing from both sides butterfly valve, wherein, the downthehole keyway that all is provided with of upper end valve rod hole and the lower extreme valve rod of dish board, it all is provided with the keyway cooperation of flat key and dish board upper end and lower extreme to go up the valve rod and down the valve rod outside to through the rotation of last valve rod, realize the rotation of dish board and lower valve rod.

Preferably, the utility model provides a pair of modified lining fluorine is to pressing from both sides butterfly valve, wherein, the backing ring is kept away from belleville spring one end inboard and is all opened there is the annular, the PTFE sealing washer sets up in the annular of backing ring, has strengthened wear-resisting and corrosivity performance.

Preferably, the utility model provides a pair of modified lining fluorine is to pressing from both sides butterfly valve, wherein, the valve body inboard is provided with the second fluoroplastics, the internal diameter of second fluoroplastics is unanimous with first fluoroplastics's external diameter, guarantees corrosion resistance, the valve body top is passed through the bolt and is linked together seat lower surface and link to each other, the installation and the dismantlement of being convenient for.

Preferably, the utility model provides a pair of modified lining fluorine is to pressing from both sides butterfly valve, wherein, open linkage seat one side has the through-hole, be provided with the axle sleeve in the through-hole that linkage seat one side was opened, the inside first axle bed that is provided with of connecting seat opposite side, the connecting rod passes the axle sleeve and links to each other with first axle bed, guarantees the stability of connecting rod.

Preferably, the utility model provides a pair of modified lining fluorine butt clamp butterfly valve, wherein, the through-hole has still been opened on the apron of linkage seat upper surface, the apron is located through-hole department and is provided with the clamp plate, the clamp plate lower surface is provided with the second shaft seat and cooperates with last valve rod top, realizes the fixed of valve rod position.

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

(1) the utility model discloses rational in infrastructure, set up belleville spring and backing ring through the upper end at the valve body and lower extreme and compensate sealed specific pressure, guarantee that valve rod department can not leak outward, life improves greatly.

(2) The equal cladding of dish board outside and valve body inboard has fluoroplastics, and the corrosive medium such as acid, alkali that the valve can be resistant any concentration to the cladding is in the fluoroplastics in the dish board outside, cooperatees through the recess of arch with disk seat top and bottom, and the fastness improves greatly, is difficult for taking place the condition that the dislocation drops.

(3) The PTFE sealing rings are arranged at the joints of the top end and the bottom end of the disc plate and the backing ring, so that the wear resistance and the corrosion resistance are enhanced.

(4) The valve rod adopts a split structure and is connected with the disc plate, and the valve rod is convenient to install and disassemble by matching with the disc spring and the backing ring.

Drawings

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

fig. 2 is an enlarged schematic view of the disk spring and the backing ring of the present invention.

In the figure: the valve comprises a valve body 1, a linkage seat 2, a disc plate 3, a hand wheel 4, a connecting channel 5, a sliding sleeve 6, a disc spring 7, a backing ring 8, a shaft hole 9, a connecting seat 10, a cover plate 11, a PTFE sealing ring 12, an upper valve rod 13, a lower valve rod 14, a first bevel gear 15, a connecting rod 16, a second bevel gear 17, a first fluoroplastic 18, a protrusion 19, a second fluoroplastic 20, a shaft sleeve 21, a first shaft seat 22, a pressing plate 23 and a second shaft seat 24.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the embodiments of the present invention and the accompanying drawings, and obviously, 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. 1-2, the present embodiment provides a technical solution: an improved fluorine lining butt-clamping butterfly valve comprises a valve body 1, a linkage seat 2, a valve rod, a disc plate 3 and a hand wheel 4; the upper end of the valve body 1 is provided with a connecting channel 5, a sliding sleeve 6 is arranged in the connecting channel 5, the valve body 1 is of an annular structure, circular grooves are formed in the upper part and the lower part of the inside of the valve body 1, disc springs 7 and backing rings 8 are arranged in the circular grooves formed in the upper part and the lower part of the inside of the valve body 1, the bottom end of the valve body 1 is provided with a shaft hole 9, and two sides of the valve body 1 are provided with connecting seats 10; the lower surface of the linkage seat 2 is connected with the top end of the valve body 1, the inner side of the valve body 1 is provided with second fluorine plastic 20, the inner diameter of the second fluorine plastic 20 is consistent with the outer diameter of the first fluorine plastic 18, the top end of the valve body 1 is connected with the lower surface of the linkage seat 2 through a bolt, the upper surface of the linkage seat 2 is provided with a cover plate 11 through a bolt, one side of the linkage seat 2 is provided with a through hole, a shaft sleeve 21 is arranged in the through hole formed in one side of the linkage seat 2, a first shaft seat 22 is arranged in the other side of the connecting seat, a connecting rod 16 penetrates through the shaft sleeve 21 to be connected with the first shaft seat 22, the cover plate 11 on the upper surface of the linkage seat 2 is also provided with a through hole; the outer side surface of the disc 3 is coated with a first fluoroplastic 18, grooves are formed in the upper end and the lower end of the middle position of the disc 3, protrusions 19 are formed in the top end and the bottom end of the first fluoroplastic 18 and matched with the grooves in the upper end and the lower end of the disc 3, an upper end valve rod hole is formed in the upper end of the inner portion of the disc 3, a lower end valve rod hole is formed in the lower end of the inner portion of the disc 3, the top end and the bottom end of the disc 3 are respectively arranged in circular grooves formed in the upper portion and the lower portion of the inner portion of the valve body 1 and connected with the backing ring 8, a PTFE sealing ring 12 is arranged at the connecting portion of the top end and the bottom end of the disc 3 and the backing ring 8, an annular groove is formed in the inner side; the valve rod comprises an upper valve rod 13 and a lower valve rod 14, the top end of the upper valve rod 13 is provided with a first bevel gear 15 and is arranged in the linkage seat 2, the upper end part of the upper valve rod 13 is arranged in a connecting channel 5 at the upper end of the valve body 1 and is connected with the sliding sleeve 6, the bottom end of the upper valve rod 13 is arranged in an upper end valve rod hole of the valve body 1, the top end of the lower valve rod 14 is arranged in a lower end valve rod hole of the valve body 1, the bottom end of the lower valve rod 14 is arranged in a shaft hole 9 at the bottom of the valve seat, key grooves are respectively arranged in an upper end valve rod hole and a lower end valve rod hole of the disc plate 3, and flat; the hand wheel 4 is connected with a connecting rod 16, one end of the connecting rod 16 is provided with a second bevel gear 17 and is arranged in the linkage seat 2, and the second bevel gear 17 is meshed with the first bevel gear 15.

The installation method and the working principle are as follows: coating a first fluoroplastic 18 on the outer side surface of a disc plate 3, arranging a second fluoroplastic 20 on the inner side of a valve body 1, clamping the first fluoroplastic 18 on the outer side surface of the disc plate 3 with grooves at the upper end and the lower end of the valve body 1 through a protrusion 19, firstly inserting a disc spring 7 and a backing ring 8 into circular grooves at the upper end and the lower end of the valve body 1, inserting a sliding sleeve 6 into a connecting channel 5 at the upper end of the valve body 1, then inserting the top end of an upper valve rod 13 into the connecting channel 5 at the upper end of the valve body 1, inserting a lower valve rod 14 into the lower end inside the disc plate 3, inserting the upper end of the disc plate 3 and the upper valve rod 13 into a splicing way and jacking up, compressing the disc spring 7 at the upper end, then pressing the disc spring 7 at the lower end of the disc plate 3 downwards, inserting the bottom end of a lower valve rod 14 into a shaft hole 9 of the valve body 1, connecting a linkage seat, one end of the connecting rod 16 passes through a shaft sleeve 21 of the linkage seat 2 to be provided with a second bevel gear 17, so that the end part of the connecting rod 16 is connected with a first shaft seat 22 in the connecting seat, the second bevel gear 17 is meshed with the first bevel gear 15 at the moment to complete the assembly, and when the butterfly valve is used, the second bevel gear 17 drives the first bevel gear 15 to rotate through the rotation of the hand wheel 4, so that the upper valve rod 13 rotates, the butterfly plate 3 is finally driven to rotate, and the butterfly valve is opened and closed; the first fluoroplastic 18 is coated on the outer side surface of the disc plate 3, the valve can resist corrosive media such as acid, alkali and the like with any concentration, and the fluoroplastic 18 coated on the outer side of the disc plate 3 is matched with the grooves at the top end and the bottom end of the valve seat through the protrusions 19, so that the firmness is greatly improved, and the situation of dislocation and falling is not easy to occur; PTFE seal rings 12 are arranged at the joints of the top end and the bottom end of the disc plate 3 and the backing ring 8, so that the wear resistance and the corrosion resistance are enhanced; the valve rod adopts a split structure and is connected with the disc plate 3, and is convenient to install and disassemble by matching with the disc spring 7 and the backing ring 8.

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. An improved fluorine lining butt-clamping butterfly valve is characterized in that: comprises a valve body (1), a linkage seat (2), a valve rod, a disc plate (3) and a hand wheel (4);

the valve body (1), a connecting channel (5) is arranged at the upper end of the valve body (1), a sliding sleeve (6) is arranged in the connecting channel (5), the valve body (1) is of an annular structure, circular grooves are formed in the upper portion and the lower portion of the interior of the valve body (1), disc springs (7) and backing rings (8) are arranged in the circular grooves formed in the upper portion and the lower portion of the interior of the valve body (1), a shaft hole (9) is formed in the bottom end of the valve body (1), and connecting seats (10) are arranged on two sides of the valve body (1);

the lower surface of the linkage seat (2) is connected with the top end of the valve body (1), and the upper surface of the linkage seat (2) is provided with a cover plate (11) through a bolt;

the valve body comprises a disc plate (3), wherein an upper end valve rod hole is formed in the upper end inside the disc plate (3), a lower end valve rod hole is formed in the lower end inside the disc plate (3), the top end and the bottom end of the disc plate (3) are respectively arranged in circular grooves formed in the upper portion and the lower portion inside the valve body (1) and are connected with a backing ring (8), and PTFE (polytetrafluoroethylene) sealing rings (12) are arranged at the connection positions of the top end and the bottom end of the disc plate (3) and the backing ring (8);

the valve rod comprises an upper valve rod (13) and a lower valve rod (14), a first bevel gear (15) is arranged at the top end of the upper valve rod (13) and is arranged in the linkage seat (2), the upper end part of the upper valve rod (13) is arranged in a connecting channel (5) at the upper end of the valve body (1) and is connected with the sliding sleeve (6), the bottom end of the upper valve rod (13) is arranged in an upper valve rod hole of the valve body (1), the top end of the lower valve rod (14) is arranged in a lower valve rod hole of the valve body (1), and the bottom end of the lower valve rod (14) is arranged in a shaft hole (9) at the bottom of the;

the hand wheel (4), the hand wheel (4) links to each other with connecting rod (16), connecting rod (16) one end is provided with second bevel gear (17) and sets up in linkage seat (2), second bevel gear (17) and first bevel gear (15) meshing.

2. An improved fluorine lined butterfly valve as claimed in claim 1, wherein: the outside surface cladding of dish board (3) has first fluoroplastics (18), the intermediate position upper end and the lower extreme of dish board (3) all are provided with the recess, the top and the bottom of first fluoroplastics (18) are provided with arch (19) and cooperate with dish board (3) upper end and the recess of lower extreme.

3. An improved fluorine lined butterfly valve as claimed in claim 1, wherein: the upper end valve rod hole and the lower end valve rod hole of the disc plate (3) are both provided with key grooves, and the outer sides of the upper valve rod (13) and the lower valve rod (14) are both provided with flat keys matched with the key grooves at the upper end and the lower end of the disc plate (3).

4. An improved fluorine lined butterfly valve as claimed in claim 1, wherein: the inner side of one end, far away from the disc spring (7), of the backing ring (8) is provided with an annular groove, and the PTFE sealing ring (12) is arranged in the annular groove of the backing ring (8).

5. An improved fluorine lined butterfly valve as claimed in claim 1, wherein: the valve body (1) inboard is provided with second fluoroplastic (20), the internal diameter of second fluoroplastic (20) is unanimous with the external diameter of first fluoroplastic (18), the valve body (1) top is passed through the bolt and is linked to each other with linkage seat (2) lower surface.

6. An improved fluorine lined butterfly valve as claimed in claim 1, wherein: a through hole is formed in one side of the linkage seat (2), a shaft sleeve (21) is arranged in the through hole formed in one side of the linkage seat (2), a first shaft seat (22) is arranged in the other side of the connecting seat, and the connecting rod (16) penetrates through the shaft sleeve (21) to be connected with the first shaft seat (22).

7. An improved fluorine lined butterfly valve as claimed in claim 1, wherein: still open the through-hole on apron (11) of linkage seat (2) upper surface, apron (11) are located through-hole department and are provided with clamp plate (23), clamp plate (23) lower surface is provided with second axle seat (24) and cooperatees with last valve rod (13) top.