CN212804262U

CN212804262U - Metal hard sealing butterfly valve with flange

Info

Publication number: CN212804262U
Application number: CN202020510601.8U
Authority: CN
Inventors: 巴玉泉; 闫永翰; 艾德权
Original assignee: Tianjin Valve Expo Machinery Co ltd
Current assignee: Tianjin Valve Expo Machinery Co ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2021-03-26
Anticipated expiration: 2030-04-09

Abstract

The utility model discloses a flange metal butterfly valve sealed firmly, which comprises a valve body, the fixed protection seat that is provided with in upper end of valve body, the fixed motor that is provided with in top of going up the protection seat, the bottom mounting of valve body is provided with down the protection seat, the bottom fixedly connected with bottom plate of protection seat down, the both ends outside of valve body is fixed preceding flange board and the rear flange board of being provided with respectively, the annular seal groove has all been seted up on the lateral wall that the valve body was kept away from to preceding flange board and rear flange board, the inner all scarf joint of two annular seal grooves has the seal ring pad, a plurality of fixed orificess have all been seted up on the outer panel body to leaning on of preceding flange board and rear flange board, the inner valve body is provided with the valve. The utility model discloses a flange metal butterfly valve sealed firmly, this butterfly valve have good connection sealing performance, and whole device is controlled by electronic and manual two kinds of methods simultaneously, and is very convenient.

Description

Metal hard sealing butterfly valve with flange

Technical Field

The utility model relates to a butterfly valve field especially relates to flange metal butterfly valve sealed firmly.

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 with a closing member (valve clack or butterfly plate) as a disk and rotating around a valve shaft to open and close, wherein a metal hard seal butterfly valve is a seal pair consisting of a hard metal material and a hard metal material.

The control device of the existing flange metal hard seal butterfly valve is generally one of manual control, electric control or pneumatic control, the manually controlled butterfly valve has low cost, but is inconvenient to control and use, and the electric or pneumatic controlled butterfly valve has high cost, but is easy to generate faults; and the existing flange metal hard seal butterfly valve has poor sealing performance and affects the use safety.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and providing a flange metal hard seal butterfly valve.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a flange metal hard seal butterfly valve comprises a valve body, wherein an upper protection seat is fixedly arranged at the upper end of the valve body, a motor is fixedly arranged at the top end of the upper protection seat, a lower protection seat is fixedly arranged at the bottom end of the valve body, a bottom plate is fixedly connected to the bottom end of the lower protection seat, a front flange plate and a rear flange plate are fixedly arranged at the outer sides of two ends of the valve body respectively, annular seal grooves are formed in the side walls, away from the valve body, of the front flange plate and the rear flange plate respectively, the inner ends of the two annular seal grooves are embedded with seal ring gaskets respectively, a plurality of fixing holes are formed in the outer side plate bodies of the front flange plate and the rear flange plate respectively, a valve rod is arranged at the inner end of the valve body, the lower end of the valve rod penetrates through the valve body to the lower protection seat and is rotatably connected onto the bottom plate, and the upper end, the inner butterfly plate that is provided with of valve body, the fixed two buckles that are provided with on a lateral wall of butterfly plate, the butterfly plate is through two buckles and valve rod fixed connection, the worm wheel has been cup jointed to the pole body upper end of leaning on of valve rod, it is provided with the side protective housing to link up on the lateral wall of last protection seat, side protective housing the inner is provided with the worm, the one end of worm is led to in the supreme protection seat and is connected with the lateral wall rotation of last protection seat, the other end of worm runs through side protective housing and fixedly connected with turning handle.

As a further description of the above technical solution:

eight fixing holes are formed in the plate bodies of the front flange plate and the rear flange plate.

As a further description of the above technical solution:

the worm wheel and the worm are meshed with each other.

As a further description of the above technical solution:

the sealing ring gasket is made of corrosion-resistant and wear-resistant rubber materials.

As a further description of the above technical solution:

the outer diameter of the butterfly plate is perfectly matched with the inner diameter of the valve body.

As a further description of the above technical solution:

and a fixed seat is fixedly arranged between the inner walls of the upper protection seats, and the rod body of the valve rod penetrates through the fixed seat.

The utility model discloses following beneficial effect has:

compared with the prior art, the utility model provides a control method of the butterfly valve is sealed firmly to flange metal combines to use for manual control and electric control, has motor control valve body work under the normal condition, when the motor breaks down, can come control valve body work through the turning handle, and is very convenient.

Compared with the existing product, the annular sealing grooves are formed in the flange plates on the two sides of the butterfly valve, the sealing ring gaskets are embedded in the inner ends of the groove bodies, the design can ensure that the whole butterfly valve is well sealed when connected with the pipe body, and the use safety of the butterfly valve is ensured.

Drawings

Fig. 1 is a front view of a flange metal hard seal butterfly valve provided by the present invention;

fig. 2 is a cross-sectional view of a flange metal hard seal butterfly valve provided by the present invention;

fig. 3 is a side view of a flange metal hard seal butterfly valve according to the present invention;

fig. 4 is an enlarged schematic view of a in fig. 2 according to the present invention.

Illustration of the drawings:

1. a valve body; 2. an upper protective seat; 3. a lower protective seat; 4. a base plate; 5. a front flange plate; 6. a rear flange plate; 7. an annular seal groove; 8. a sealing ring gasket; 9. a fixing hole; 10. a valve stem; 11. a butterfly plate; 12. Buckling; 13. an electric motor; 14. a fixed seat; 15. a worm gear; 16. a side protective shell; 17. a worm; 18. And (7) rotating a handle.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: a flange metal hard seal butterfly valve comprises a valve body 1, wherein an upper protection seat 2 is fixedly arranged at the upper end of the valve body 1, a motor 13 is fixedly arranged at the top end of the upper protection seat 2, a lower protection seat 3 is fixedly arranged at the bottom end of the valve body 1, a bottom plate 4 is fixedly connected with the bottom end of the lower protection seat 3, a front flange plate 5 and a rear flange plate 6 are fixedly arranged at the outer sides of the two ends of the valve body 1 respectively, the two flange plates are of the same specification and are circular ring plates, annular seal grooves 7 are respectively formed in the side walls, far away from the valve body 1, of the front flange plate 5 and the rear flange plate 6, the inner ends of the two annular seal grooves 7 are respectively embedded with a seal ring gasket 8, the design can greatly improve the sealing performance when the whole butterfly valve is connected with a pipe body, a plurality of fixing holes 9 are respectively formed in the plate bodies, close to the outer sides, of the front flange plate 5 and the rear flange plate 6, and are fixedly connected with the pipe body, the upper end of the valve rod 10 penetrates through the valve body 1 to reach the inner end of the upper protective seat 2 and is fixedly connected with the output end of the motor 13, the motor 13 can directly drive the valve rod 10 to rotate, to control the rotation of the butterfly plate 11, the inner end of the valve body 1 is provided with the butterfly plate 11, one side wall of the butterfly plate 11 is fixedly provided with two buckles 12, the butterfly plate 11 is fixedly connected with the valve rod 10 through the two buckles 12, the rod body close to the upper end of the valve rod 10 is fixedly sleeved with a worm wheel 15, the side wall of the upper protection seat 2 is provided with a side protection shell 16 in a run-through manner, the inner end of the side protection shell 16 is provided with a worm 17, one end of the worm 17 is communicated into the upper protection seat 2 and is rotatably connected with the side wall of the upper protection seat 2, the other end of the worm 17 penetrates through the side protection shell, the worm 17 can be driven to rotate by rotating the rotating handle 18, the worm 17 rotates to drive the worm wheel 15 to rotate, and the valve rod 10 rotates along with the rotation of the worm wheel 15.

The fixed orifices 9 on the board body of preceding flange board 5 and back flange board 6 have all been seted up eight, worm wheel 15 and worm 17 intermeshing, sealing ring pad 8 is made by corrosion-resistant, wear-resisting rubber materials, guarantee that sealing ring pad 8 once can use for a long time, the external diameter size of butterfly plate 11 and the internal diameter size of valve body 1 agree with perfectly, leakproofness is good when guaranteeing that whole device is closed, go up the fixed fixing base 14 that is provided with between the inner wall of protection seat 2, the pole body of valve rod 10 link up fixing base 14, guarantee the stability of valve rod 10.

The working principle is as follows: when the butterfly valve is installed, the whole butterfly valve is fixedly connected with a pipe body through the front flange plate 5 and the rear flange plate 6 by bolts, when the butterfly valve is normally used, the motor 13 directly drives the valve rod 10 to rotate, and the valve rod 10 rotates to drive the butterfly plate 11 to rotate, so that the valve body 1 is opened and closed; when the motor 13 fails, the worm 17 can be driven to rotate by rotating the rotating handle 18, the worm 17 rotates to drive the worm wheel 15 to rotate, the valve rod 10 rotates along with the rotation of the worm wheel 15, and the valve rod 10 rotates to drive the butterfly plate 11 to rotate.

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

1. Flange metal seals butterfly valve firmly, including valve body (1), its characterized in that: the fixed protection seat (2) of being provided with in upper end of valve body (1), the fixed motor (13) that is provided with in top of going up protection seat (2), the bottom mounting of valve body (1) is provided with down protection seat (3), bottom fixedly connected with bottom plate (4) of protection seat (3) down, the both ends outside of valve body (1) is fixed respectively and is provided with preceding flange plate (5) and rear flange board (6), all seted up ring seal groove (7) on the lateral wall that valve body (1) was kept away from in preceding flange plate (5) and rear flange board (6), two ring seal groove (7) inner all are rabbeted and have been rabbeted seal ring pad (8), a plurality of fixed orificess (9) have all been seted up on the board body outside of leaning on of preceding flange plate (5) and rear flange board (6), valve body (1) inner is provided with valve rod (10), the lower extreme that valve rod (10) run through valve body (1) leads to in protecting seat (3) down and rotate and connect on bottom plate (4) The upper end of the valve rod (10) penetrates through the valve body (1) to be communicated with the inner end of the upper protective seat (2) and is fixedly connected with the output end of the motor (13), a butterfly plate (11) is arranged at the inner end of the valve body (1), two buckles (12) are fixedly arranged on one side wall of the butterfly plate (11), the butterfly plate (11) is fixedly connected with the valve rod (10) through two buckles (12), a worm wheel (15) is fixedly sleeved on the rod body close to the upper end of the valve rod (10), a side protective shell (16) is arranged on the side wall of the upper protective seat (2) in a penetrating way, a worm (17) is arranged at the inner end of the side protective shell (16), one end of the worm (17) is communicated into the upper protective seat (2) and is rotationally connected with the side wall of the upper protective seat (2), the other end of the worm (17) penetrates through the side protection shell (16) and is fixedly connected with a rotating handle (18).

2. The flange metal hard seal butterfly valve of claim 1, wherein: eight fixing holes (9) on the plate bodies of the front flange plate (5) and the rear flange plate (6) are formed.

3. The flange metal hard seal butterfly valve of claim 1, wherein: the worm wheel (15) and the worm (17) are meshed with each other.

4. The flange metal hard seal butterfly valve of claim 1, wherein: the sealing ring gasket (8) is made of corrosion-resistant and wear-resistant rubber material.

5. The flange metal hard seal butterfly valve of claim 1, wherein: the outer diameter of the butterfly plate (11) is perfectly matched with the inner diameter of the valve body (1).

6. The flange metal hard seal butterfly valve of claim 1, wherein: a fixed seat (14) is fixedly arranged between the inner walls of the upper protection seat (2), and the rod body of the valve rod (10) penetrates through the fixed seat (14).