CN215720895U

CN215720895U - Novel flange butterfly valve

Info

Publication number: CN215720895U
Application number: CN202122205672.4U
Authority: CN
Inventors: 陈月标; 张琰
Original assignee: Jiangsu Pusheng Petrochemical Machinery Co ltd
Current assignee: Jiangsu Pusheng Petrochemical Machinery Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-02-01
Anticipated expiration: 2031-09-13

Abstract

The utility model discloses a novel flange butterfly valve which comprises a valve body, wherein valve rod shells are welded at the top and the bottom of the valve body, a valve rod is installed inside the valve rod shell, a butterfly plate is sleeved inside the valve body on the outer side of the valve rod, a pair of sealing grooves are formed in the upper end and the lower end of the inside of the valve body, sealing rings are installed inside the pair of sealing grooves, the pair of sealing rings are sleeved on the valve rod and are in contact with the upper end and the lower end of the butterfly plate, and sealing covers are installed at the upper end and the lower end of the valve rod shell. The butterfly valve disclosed by the utility model has the advantages of simple and reasonable structure, novel design and simplicity and convenience in operation, effectively solves the problem that the sealing performance is reduced due to the displacement of the sealing ring when the conventional butterfly valve is used for too long time, and has higher practical value.

Description

Novel flange butterfly valve

Technical Field

The utility model relates to the technical field of flange butterfly valves, in particular to a novel flange butterfly valve.

Background

The butterfly valve has simple structure, small volume and light weight, and is composed of a few parts. And the valve can be quickly opened and closed only by rotating 90 degrees, the operation is simple, and meanwhile, the valve has good fluid control characteristics. The butterfly plate of the butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, the rotation angle is 0-90 degrees, and when the disc-shaped butterfly plate rotates to 90 degrees, the valve is in a full-open state. When the flange butterfly valve is in a fully open position, the thickness of the butterfly plate is the only resistance when a medium flows through the valve body, so that the pressure drop generated by the valve is small, and the flange butterfly valve has a good flow control characteristic.

The flange butterfly valve leads to the sealing washer to shift easily when live time is too long to appear sealed poor condition of effect, therefore we improve this, provide a novel flange butterfly valve.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the following technical scheme:

the novel flange butterfly valve comprises a valve body, wherein valve rod shells are welded at the top and the bottom of the valve body, a valve rod is installed inside the valve rod shell, butterfly plates are sleeved inside the valve body on the outer sides of the valve rod, a pair of sealing grooves are formed in the upper end and the lower end of the inside of the valve body, sealing rings are installed inside the pair of sealing grooves, the pair of sealing rings are sleeved on the valve rod and are in contact with the upper end and the lower end of each butterfly plate, and sealing covers are installed at the upper end and the lower end of the valve rod shell.

As a preferable technical solution of the present invention, one side of one of the sealing covers is provided with an insertion opening, a rotating shaft is installed inside the insertion opening, one end of the rotating shaft penetrates through the insertion opening and is provided with a driving bevel gear, a driven bevel gear is sleeved outside the valve rod, and the driving bevel gear and the driven bevel gear are engaged with each other.

According to a preferred technical scheme, a plurality of threaded holes are formed in the top and the bottom of each of the pair of sealing covers, bolts are mounted inside the threaded holes, the bolts are meshed with the threaded holes through threads respectively, nuts are connected to the outer sides of the bolts through threads, and the nuts are meshed with the bolts respectively.

As a preferable technical scheme of the utility model, the other end of the rotating shaft is provided with a handle.

As a preferred technical scheme of the utility model, one end of the valve body is provided with a water inlet, the other end of the valve body is provided with a water outlet, and the water inlet and the water outlet are communicated with each other.

As a preferred technical scheme of the utility model, a pair of flanges are respectively arranged at one end of the valve body, which is positioned at the water inlet and the water outlet, and a plurality of mounting holes are arranged on the surfaces of the pair of flanges.

As a preferable technical scheme of the utility model, the butterfly plate is disc-shaped, and the diameter of the butterfly plate is equal to the diameter of the water inlet and the water outlet.

The utility model has the beneficial effects that:

1. according to the novel flange butterfly valve, the sealing ring can be stably placed in the groove through the arrangement of the sealing groove, the sealing ring is prevented from being displaced due to the problem of service time of the butterfly valve, and meanwhile, the sealing performance of the butterfly valve is enhanced;

2. this kind of novel flange butterfly valve through the mutually supporting of driven bevel gear and drive bevel gear, can make the handle when rotating the pivot, drives the rotation of butterfly plate to realize sealing or opening of butterfly valve, can reduce the valve rod simultaneously and lead to the problem appearance of warping after using longer time.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a perspective view of a novel flanged butterfly valve of the present invention;

FIG. 2 is a plan cross-sectional view of a novel flanged butterfly valve of the present invention;

FIG. 3 is a cross-sectional view of a valve stem and a shaft of a novel flange butterfly valve of the present invention;

FIG. 4 is an enlarged view of the structure A of FIG. 2 of a novel flanged butterfly valve of the present invention;

fig. 5 is a side view of the flange and butterfly plate of a novel flanged butterfly valve of the present invention.

In the figure: 1. a valve body; 2. a valve stem housing; 3. a sealing cover; 4. a drive bevel gear; 5. a bolt; 6. a nut; 7. a rotating shaft; 8. a handle; 9. an insertion opening; 10. a flange; 11. mounting holes; 12. a valve stem; 13. a water inlet; 14. a water outlet; 15. a butterfly plate; 16. a driven bevel gear; 17. a sealing groove; 18. and (5) sealing rings.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1-5, the novel flange butterfly valve of the utility model comprises a valve body 1, wherein a valve rod housing 2 is welded at the top and the bottom of the valve body 1, a valve rod 12 is installed inside the valve rod housing 2, a butterfly plate 15 is sleeved inside the valve body 1 outside the valve rod 12, a pair of sealing grooves 17 are formed at the upper and lower ends inside the valve body 1, sealing rings 18 are installed inside the pair of sealing grooves 17, the pair of sealing rings 18 are sleeved on the valve rod 12 and are in contact with the upper and lower ends of the butterfly plate 15, and sealing covers 3 are installed at the upper and lower ends of the valve rod housing 2.

Wherein, an insertion opening 9 is opened at one side of one of the sealing covers 3, a rotating shaft 7 is installed inside the insertion opening 9, one end of the rotating shaft 7 penetrates through the insertion opening 9 and is provided with a driving bevel gear 4, a driven bevel gear 16 is sleeved outside the valve rod 12, the driving bevel gear 4 is meshed with the driven bevel gear 16, and the rotation of the butterfly plate 15 can be realized through the mutual matching of the driving bevel gear 4 and the driven bevel gear 16.

Wherein, a plurality of screw holes have all been seted up to the top and the bottom of a pair of sealed lid 3, and bolt 5 is all installed to the inside of a plurality of screw holes, and a plurality of bolts 5 are respectively through the mutual interlock of screw thread with a plurality of screw holes, and the outside of a plurality of bolts 5 all has nut 6 through threaded connection, and a plurality of nuts 6 respectively with a plurality of mutual interlock of bolt 5, through mutually supporting of bolt 5 and nut 6, the convenient installation and the dismantlement to sealed lid 3.

Wherein, handle 8 is installed to the other end of pivot 7, through the installation of handle 8, makes things convenient for the staff to the control of pivot 7.

Wherein, a water inlet 13 is arranged at one end of the valve body 1, a water outlet 14 is arranged at the other end of the valve body, the water inlet 13 is communicated with the water outlet 14, and the water flow is convenient to circulate through the arrangement of the water inlet 13 and the water outlet 14.

Wherein, a pair of flanges 10 are respectively installed at one end of the valve body 1, which is located at the water inlet 13 and the water outlet 14, and a plurality of installation holes 11 are arranged on the surfaces of the pair of flanges 10.

Wherein, the butterfly plate 15 is the disc, and the diameter of butterfly plate 15 equals with the diameter of water inlet 13 and delivery port 14, through the setting of butterfly plate 15 diameter, can make it cut off rivers and circulate.

The working principle is as follows: when the butterfly valve is used, firstly, the butterfly plate 15 is installed inside the valve body 1, secondly, the valve rod 12 is placed into the valve rod shell 2, then the upper end and the lower end of the valve rod shell 2 are provided with the sealing covers 3, one side of one sealing cover 3 is provided with the insertion hole 9, the inside of the insertion hole 9 is provided with the rotating shaft 7, one end of the rotating shaft 7 is provided with the driving bevel gear 4, the outer side of the valve rod 12 close to the top end is provided with the driven bevel gear 16, the driving bevel gear 4 is meshed with the driven bevel gear 16, the rotation of the valve rod 12 is used for driving the butterfly plate 15 to rotate, meanwhile, the upper end and the lower end of the inside of the valve body 1 are provided with the pair of sealing grooves 17, the sealing rings 18 are installed inside the sealing grooves 17, the sealing rings 18 are in contact with the valve rod 12, and the sealing performance of the valve body 1 is improved; the butterfly valve disclosed by the utility model has the advantages of simple and reasonable structure, novel design and simplicity and convenience in operation, effectively solves the problem that the sealing performance is reduced due to the displacement of the sealing ring when the conventional butterfly valve is used for too long time, and has higher practical value.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. 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 flange butterfly valve, includes valve body (1), its characterized in that, valve rod shell (2) have all been welded to the top and the bottom of valve body (1), the internally mounted of valve rod shell (2) has valve rod (12), the outside of valve rod (12) is equipped with butterfly plate (15) at the inside cover that is located valve body (1), a pair of seal groove (17), a pair of have been seted up at both ends about the inside of valve body (1) sealing washer (18), a pair of sealing washer (18) are all installed to the inside of seal groove (17) sealing washer (18) are all established and are established on valve rod (12) and contact with the upper and lower both ends of butterfly plate (15), sealed lid (3) are all installed at the upper and lower both ends of valve rod shell (2).

2. The novel flange butterfly valve according to claim 1, wherein an insertion opening (9) is formed in one side of one of the sealing covers (3), a rotating shaft (7) is installed inside the insertion opening (9), one end of the rotating shaft (7) penetrates through the insertion opening (9) and is provided with a driving bevel gear (4), a driven bevel gear (16) is sleeved outside the valve rod (12), and the driving bevel gear (4) and the driven bevel gear (16) are meshed with each other.

3. The novel flange butterfly valve according to claim 1, wherein a plurality of threaded holes are formed in the top and the bottom of each pair of sealing covers (3), bolts (5) are mounted inside the plurality of threaded holes, the plurality of bolts (5) are engaged with the plurality of threaded holes through threads, nuts (6) are connected to the outer sides of the plurality of bolts (5) through threads, and the plurality of nuts (6) are engaged with the plurality of bolts (5) respectively.

4. A novel flange butterfly valve according to claim 2, characterised in that the other end of the shaft (7) is fitted with a handle (8).

5. The novel flange butterfly valve according to claim 1, wherein one end of the valve body (1) is provided with a water inlet (13), the other end is provided with a water outlet (14), and the water inlet (13) and the water outlet (14) are communicated with each other.

6. A novel flange butterfly valve according to claim 5, characterized in that a pair of flanges (10) are respectively mounted on the valve body (1) at one end of the water inlet (13) and the water outlet (14), and a plurality of mounting holes (11) are formed on the surfaces of the pair of flanges (10).

7. A novel flanged butterfly valve according to claim 5, characterized in that the butterfly plate (15) is disc-shaped, and the diameter of the butterfly plate (15) is equal to the diameter of the water inlet (13) and outlet (14).