CN217440807U - Metal sealed three eccentric butterfly valve - Google Patents

Abstract

The utility model relates to the technical field of valves, a metal-sealed three-eccentric butterfly valve is disclosed, include the both ends of valve body are the fixed flange that is provided with all, the fixed connector that is provided with of upside of valve body, the fixed rotation chamber that is provided with in upper end of connector, two the equal fixed sealing washer that is provided with in one side of flange, two the sealing washer all includes outer lane and inner circle, two the outer lane is the fixed outside that sets up at two flanges respectively, two the inner circle is the fixed inboard that sets up at two flanges respectively, the inboard of valve body is fixed and is provided with the cooperation head, screw fixedly connected with filter head is passed through to one side of cooperation head, the filter head includes the cooperation ring, the inboard fixed filter screen that is provided with of cooperation ring. The utility model provides a three eccentric butterfly valves of metal seal can prevent to lead to the unable pivoted problem of valve rod because of piling up of impurity, the life of effectual extension valve, and the filter head can be dismantled, and it is more convenient to use.

Description

Metal sealed three eccentric butterfly valve

Technical Field

The utility model relates to the technical field of valves, especially, relate to three eccentric butterfly valves of metal-sealed.

Background

The valve can be used for controlling the flow of various 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 pipelines, the valve has various types, the butterfly valve is a class with wider application range, the butterfly valve is also called a flap valve, and is a regulating valve with simple structure.

Through search, the prior patent (publication number: CN 201661696U) discloses a triple offset butterfly valve, which can avoid the phenomenon of expansion or locking at high temperature to ensure the normal operation of the device, but has the problem of difficult prevention of impurities in the fluid, so that the impurities in the fluid block the valve rod, and the valve rod is difficult to rotate, therefore, the technicians in this field provide a metal sealing triple offset butterfly valve to solve the problems mentioned in the background art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the metal sealing triple offset butterfly valve that proposes is provided with the filter, can prevent to lead to the unable pivoted problem of valve rod because of piling up of impurity, and the life of effectual extension valve, simultaneously, the filter can be dismantled, and it is more convenient to use, and in addition, sealed effectual, the antiseep performance is strong.

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

the metal sealing triple offset butterfly valve comprises a valve body, wherein two ends of the valve body are fixedly provided with connecting flanges, the upper side of the valve body is fixedly provided with a connector, and the upper end of the connector is fixedly provided with a rotating cavity;

sealing rings are fixedly arranged on one sides of the two connecting flanges, each sealing ring comprises an outer ring and an inner ring, the two outer rings are fixedly arranged on the outer sides of the two connecting flanges respectively, and the two inner rings are fixedly arranged on the inner sides of the two connecting flanges respectively;

the filter is characterized in that a matching head is fixedly arranged on the inner side of the valve body, one side of the matching head is fixedly connected with a filter head through a screw, the filter head comprises a matching ring, and a filter screen is fixedly arranged on the inner side of the matching ring;

through above-mentioned technical scheme, the filter head that sets up can block the impurity in the fluid through the filter screen when the fluid passes through to prevent to lead to the unable pivoted problem of valve rod because of piling up of impurity.

Furthermore, a valve rod is rotatably arranged in the valve body, a valve clack is fixedly arranged on a rod body of the valve rod, and one end of the valve rod extends into the rotating cavity and is fixedly connected with a fluted disc;

through above-mentioned technical scheme, the valve rod is rotated in order to open and shut the valve clack.

Furthermore, a rotating rod is rotatably arranged on the outer side of the rotating cavity, and the end of the rotating rod extends into the rotating cavity and is fixedly connected with a worm;

through above-mentioned technical scheme, rotate the bull stick and drive the worm and rotate, the worm drives the fluted disc and rotates.

Furthermore, the worm is meshed with the fluted disc, and a hand wheel is fixedly arranged at the other end of the rotating rod;

through above-mentioned technical scheme, the bull stick can be convenient for rotate by the hand wheel.

Furthermore, the valve rod penetrates through the connector and is fixedly connected with a bearing between the valve rod and the inner wall of the connector;

through above-mentioned technical scheme, the bearing can promote the stability when the valve rod rotates.

Furthermore, the fluted disc is rotationally connected with the rotating cavity;

through above-mentioned technical scheme, the rotation fluted disc drives the valve rod and rotates.

Further, the two sealing rings are both made of vulcanized rubber;

through above-mentioned technical scheme, the sealing washer leakproofness that vulcanite made and form is strong, long service life.

Further, the valve body is made of nodular cast iron;

through the technical scheme, the valve body made of the nodular cast iron is high in structural strength and durable.

The utility model discloses following beneficial effect has:

1. the utility model provides a three eccentric butterfly valves of metal seal is provided with the filter, and the filter that sets up when the fluid process can block the impurity in the fluid through the filter screen to prevent to lead to the unable rotation of valve rod because of piling up of impurity, the unable problem that opens and shuts of valve clack can effectual extension valve's life.

2. The utility model provides a metal seal three eccentric butterfly valve, sealed effectual, the sealing washer of setting comprises outer lane and inner circle, has formed multi-storied antiseep structure, can effectually avoid the inside or outside fluid seepage of valve to take place, reinforcing leakproofness.

3. The utility model provides a three eccentric butterfly valves of metal seal, the filter head of setting passes through the screw and is connected with the cooperation head for the filter head can be dismantled, thereby is convenient for clear up the filter screen, and it is more convenient to use, and the practicality is stronger.

Drawings

Fig. 1 is a side view of a metal-sealed triple offset butterfly valve according to the present invention;

fig. 2 is a front view of the metal sealing triple offset butterfly valve of the present invention;

fig. 3 is a schematic view of the internal structure of the valve body of the metal-sealed triple offset butterfly valve according to the present invention;

FIG. 4 is a schematic structural view of a filter head of a metal-sealed triple offset butterfly valve according to the present invention;

fig. 5 is an internal structure diagram of a rotation cavity of the metal sealing triple offset butterfly valve provided by the utility model.

Illustration of the drawings:

1. a valve body; 2. a connecting flange; 3. a seal ring; 4. a connector; 5. a rotation chamber; 6. a rotating rod; 7. an outer ring; 8. an inner ring; 9. a valve stem; 10. a valve flap; 11. a fitting head; 12. a filter head; 13. matching rings; 14. filtering with a screen; 15. a fluted disc; 16. a worm; 17. a bearing; 18. a handwheel.

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 an embodiment: metal seal triple offset butterfly valve, including valve body 1, the both ends of valve body 1 are all fixed and are provided with flange 2, can just be connected valve body 1 and pipeline through flange 2, and the upside of valve body 1 is fixed and is provided with connector 4, and the upper end of connector 4 is fixed and is provided with rotation chamber 5.

One side of two flange 2 is all fixed and is provided with sealing washer 3, and two sealing washers 3 all include outer lane 7 and inner circle 8, owing to the sealing washer 3 that sets up comprises outer lane 7 and inner circle 8, have formed multilayer anti-seepage leakage structure to the effectual inside or the outside fluid seepage of valve of avoiding takes place, reinforcing leakproofness, and two outer lanes 7 are fixed the setting respectively in two flange 2's the outside, and two inner circles 8 are fixed the setting respectively in two flange 2's inboard.

The fixed cooperation head 11 that is provided with in inboard of valve body 1, one side of cooperation head 11 is through screw fixedly connected with filter head 12, and filter head 12 includes cooperation ring 13, and the fixed filter screen 14 that is provided with in inboard of cooperation ring 13 can block the impurity in the fluid through filter screen 14 at filter head 12 that sets up when the fluid passes through to prevent to lead to the unable pivoted problem of valve rod 9 because of piling up of impurity.

A valve rod 9 is rotatably arranged inside the valve body 1, a valve clack 10 is fixedly arranged on the rod body of the valve rod 9, one end of the valve rod 9 extends into the rotating cavity 5 and is fixedly connected with a fluted disc 15, the valve rod 9 is rotated to open and close the valve clack 10, a rotating rod 6 is rotatably arranged outside the rotating cavity 5, one end of the rotating rod 6 extends into the rotating cavity 5 and is fixedly connected with a worm 16, the rotating rod 6 is rotated to drive the worm 16 to rotate, the worm 16 drives the fluted disc 15 to rotate, the worm 16 is meshed and connected with the fluted disc 15, a hand wheel 18 is fixedly arranged at the other end of the rotating rod 6, the hand wheel 18 can facilitate the rotation of the rotating rod 6, the valve rod 9 penetrates through the connector 4 and is fixedly connected with a bearing 17 between the inner wall of the connector 4, the bearing 17 can improve the stability of the valve rod 9 during rotation, the fluted disc 15 is rotatably connected with the rotating cavity 5, the fluted disc 15 is rotated to drive the valve rod 9 to rotate, two sealing rings 3 are made of vulcanized rubber, the sealing washer 3 leakproofness that vulcanite made formed is strong, long service life, and valve body 1 is formed by the preparation of nodular cast iron, and valve body 1 structural strength that the preparation of nodular cast iron formed is high, more durable.

The working principle is as follows: this three eccentric butterfly valves of metal seal, when using, at first with it and pipe connection, connect the back because the sealing washer 3 that sets up comprises outer lane 7 and inner circle 8, the multi-layer anti-seepage structure has been formed, thereby the effectual inside or the outside fluid seepage of valve of avoiding takes place, the reinforcing leakproofness, and the filter head 12 that sets up can block the impurity in the fluid through filter screen 14, thereby prevent to lead to the unable rotation of valve rod 9 because of piling up of impurity, the unable problem that opens and shuts of valve clack 10, furthermore, filter head 12 passes through the screw and is connected with cooperation head 11, make filter head 12 can dismantle, thereby be convenient for clear up filter screen 14.

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 and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (8)

1. Three eccentric butterfly valves of metal seal, including valve body (1), its characterized in that: the two ends of the valve body (1) are fixedly provided with connecting flanges (2), the upper side of the valve body (1) is fixedly provided with a connector (4), and the upper end of the connector (4) is fixedly provided with a rotating cavity (5);

sealing rings (3) are fixedly arranged on one sides of the two connecting flanges (2), each sealing ring (3) comprises an outer ring (7) and an inner ring (8), the two outer rings (7) are fixedly arranged on the outer sides of the two connecting flanges (2) respectively, and the two inner rings (8) are fixedly arranged on the inner sides of the two connecting flanges (2) respectively;

the inboard of valve body (1) is fixed and is provided with cooperation head (11), one side of cooperation head (11) is through screw fixedly connected with filter head (12), filter head (12) are including cooperation ring (13), the inboard of cooperation ring (13) is fixed and is provided with filter screen (14).

2. The metal-sealed triple offset butterfly valve of claim 1, wherein: the inside of valve body (1) is rotated and is provided with valve rod (9), fixed valve clack (10) that are provided with on the pole body of valve rod (9), the one end of valve rod (9) stretches into and rotates chamber (5) inside and fixedly connected with fluted disc (15).

3. The metal-sealed triple offset butterfly valve of claim 2, wherein: the outer side of the rotating cavity (5) is rotatably provided with a rotating rod (6), and the end of the rotating rod (6) extends into the rotating cavity (5) and is fixedly connected with a worm (16).

4. The metal-sealed triple offset butterfly valve of claim 3, wherein: the worm (16) is meshed with the fluted disc (15), and a hand wheel (18) is fixedly arranged at the other end of the rotating rod (6).

5. The metal-sealed triple offset butterfly valve of claim 2, wherein: the valve rod (9) penetrates through the connector (4) and is fixedly connected with a bearing (17) between the valve rod and the inner wall of the connector (4).

6. The metal-sealed triple offset butterfly valve of claim 2, wherein: the fluted disc (15) is rotationally connected with the rotating cavity (5).

7. The metal-sealed triple offset butterfly valve of claim 1, wherein: the two sealing rings (3) are both made of vulcanized rubber.

8. The metal-sealed triple offset butterfly valve of claim 1, wherein: the valve body (1) is made of nodular cast iron.

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