CN217633913U

CN217633913U - Double-seal structure of metal seal butterfly valve

Info

Publication number: CN217633913U
Application number: CN202123444417.1U
Authority: CN
Inventors: 蒋慧敏; 刘春林; 刘雯
Original assignee: Fuluoken Machinery Technology Shanghai Co ltd
Current assignee: Anhui Fuluoken Machinery Technology Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-10-21
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses a double-seal structure of metal seal butterfly valve, including the trunk line, the disk seat is installed to trunk line middle part one side, and the valve rod is installed to the inside rotation of disk seat, and the valve rod lower extreme is installed the valve plate, and the rotatory card of valve plate establishes middle part in the trunk line, and the hand wheel is installed to the valve rod upper end, and spacing seat is installed to trunk line middle part both sides, and the spout has been seted up to spacing seat inside, and the inside slidable mounting of spout has locating piece and first sealed pad, and the second is sealed to install in the valve plate outside, and locating piece one end transmission is connected with electric putter, the utility model discloses an install first sealed pad in locating piece one side, the second is sealed to be installed in the valve plate outside is sealed to make and to form double-seal operation between valve plate and the trunk line and handle, make sealed effect better, and be connected with electric putter through electric putter drive locating piece and first sealed the locating piece outside and seal the valve plate and seal the location, be convenient for improve the structural stability when the valve plate closes.

Description

Double-sealing structure of metal sealing butterfly valve

Technical Field

The utility model relates to a butterfly valve technical field specifically is a double containment structure of metal seal 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 main functions of cutting off and throttling are realized on the pipeline. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved.

Application number is CN 202020474463.2's a butterfly valve subassembly with multilayer seal structure among the prior art, and it is not convenient for carry out joint location and sealed processing to the valve plate middle part outside, and structural stability is relatively poor when closed between valve plate and the trunk line for sealed effect is general, is difficult to satisfy the use needs well.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a double containment structure of metal seal butterfly valve to solve and be not convenient for carry out joint location and sealing treatment to the valve plate middle part outside among the prior art, structural stability is relatively poor when closed between valve plate and the trunk line, makes the general problem of sealed effect.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a double-seal structure of metal seal butterfly valve, includes the trunk line, the disk seat is installed to trunk line middle part one side, the valve rod is installed to the inside rotation of disk seat, the valve plate is installed to the valve rod lower extreme, and the rotatory card of valve plate establishes middle part in the trunk line, the hand wheel is installed to the valve rod upper end, spacing seat is installed to trunk line middle part both sides, the spout has been seted up to spacing seat inside, the inside slidable mounting of spout has the locating piece, first sealed the pad is installed to locating piece one side, the sealed pad of second is installed in the valve plate outside, locating piece one end transmission is connected with electric putter.

Furthermore, the positioning blocks are arranged into semi-arc-shaped blocks, two groups of positioning blocks are symmetrically arranged on the valve rod, and flanges are installed at two ends of the main pipeline.

Furthermore, the outside both sides of valve rod have seted up sealed constant head tank, locating piece and first sealed joint of filling up are in sealed constant head tank.

Furthermore, the electric push rod and the positioning block are fixedly connected through a telescopic rod, and the electric push rod is fixedly installed on the outer side of the limiting seat.

Furthermore, the second sealing gasket is provided with two groups in parallel on the outer side of the valve plate, and the second sealing gasket is arranged in a circular ring shape.

Furthermore, spacing post is installed to the valve plate downside, and the rotatory joint of spacing post is at the inside spacing inslot of trunk line.

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

1. the utility model discloses a sealed pad of second is installed in the valve plate outside, and the sealed pad of second has two sets ofly in valve plate outside parallel arrangement, and the sealed pad of second sets the ring form to, forms double containment operation processing when making to be closed between valve plate and the trunk line for sealed effect is better.

2. The utility model discloses a first sealed pad is installed to locating piece one side, and locating piece one end transmission is connected with electric putter for can drive the locating piece and the sealed removal of filling up of first through electric putter and adjust, thereby can seal the location to valve plate outside middle part, structural stability and leakproofness when being convenient for improve the valve plate and close.

3. Utility model has seted up sealed constant head tank through the outside both sides of valve rod, and locating piece and first sealed joint of filling up are convenient for carry out joint location and sealed processing to the valve plate middle part outside in sealed constant head tank, have further improved the leakproofness when the valve plate is closed.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention. In the drawings:

FIG. 1 is a front view of the overall structure of the present invention;

FIG. 2 is a schematic view of the connection structure of the valve plate and the main pipeline of the present invention;

FIG. 3 is a left side view of the valve plate structure of the present invention;

fig. 4 is a schematic structural diagram of the positioning block and the electric push rod of the present invention.

In the figure: 1. a main pipeline; 2. a valve seat; 3. a hand wheel; 4. a valve stem; 5. a flange; 6. a limiting seat; 7. an electric push rod; 8. a chute; 9. a valve plate; 10. a limiting column; 11. a limiting groove; 12. a telescopic rod; 13. positioning blocks; 14. a first gasket; 15. a second gasket; 16. and sealing the positioning 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.

Please refer to fig. 1, fig. 2, fig. 3, fig. 4, in an embodiment of the present invention, a dual sealing structure of a metal sealing butterfly valve, including a main pipe 1, a valve seat 2 is installed at one side of the middle part of the main pipe 1, a valve rod 4 is installed inside the valve seat 2 in a rotating manner, a valve plate 9 is installed at the lower end of the valve rod 4, and a rotary clamp of the valve plate 9 is installed at the middle part of the main pipe 1, a hand wheel 3 is installed at the upper end of the valve rod 4, so as to perform rotation adjustment processing on the valve plate 9, spacing seats 6 are installed at both sides of the middle part of the main pipe 1, sliding grooves 8 are installed inside the spacing seats 6, a positioning block 13 is installed inside the sliding manner, a first sealing gasket 14 is installed at one side of the positioning block 13, a second sealing gasket 15 is installed at the outer side of the valve plate 9, two sets of the second sealing gasket 15 are arranged in parallel at the outer side of the valve plate 9, and the second sealing gasket 15 is arranged in a circular ring shape, so as to form dual sealing operation processing when the main pipe is closed between the valve plate 9 and the main pipe 1, so that the sealing effect is good, one end of the positioning block 13 is connected with an electric push rod 7, so as to drive the electric push the positioning block 13 and the first sealing push rod 14, so as to move and adjust, thereby to perform sealing positioning processing on the outer side of the valve plate 9, and improve the sealing structure stability and sealing structure when the valve plate 9.

Preferably, the positioning block 13 is arranged into a semicircular arc block, two sets of positioning blocks 13 are symmetrically arranged on the valve rod 4, and the flanges 5 are arranged at two ends of the main pipeline 1, so that the positioning blocks 13 are conveniently clamped outside the valve plate 9.

Preferably, the sealing positioning groove 16 is formed in two sides of the outside of the valve rod 4, the positioning block 13 and the first sealing gasket 14 are connected in the sealing positioning groove 16 in a clamping mode, clamping positioning and sealing processing are conveniently conducted on the outer side of the middle of the valve plate 9, and sealing when the valve plate 9 is closed is further improved.

Preferably, the electric push rod 7 and the positioning block 13 are fixedly connected through the telescopic rod 12, and the electric push rod 7 is fixedly installed on the outer side of the limiting seat 6, so that the positioning block 13 and the first sealing gasket 14 can be driven to move and adjust through the electric push rod 7, and the middle part of the outer side of the valve plate 9 can be subjected to sealing and positioning treatment.

Preferably, valve plate 9 downside is installed spacing post 10, and the rotatory joint of spacing post 10 is in main pipe 1 inside spacing inslot 11, is convenient for support spacing processing to valve plate 9 downside, is convenient for improve the structural stability of valve plate 9 installation and use.

The utility model discloses a theory of operation and use flow: through the second sealing gaskets 15 arranged on the outer sides of the valve plates 9, two groups of the second sealing gaskets 15 are arranged on the outer sides of the valve plates 9 in parallel, and the second sealing gaskets 15 are arranged in a circular ring shape, so that double-sealing operation treatment can be formed when the valve plates 9 and the main pipeline 1 are closed, and the sealing effect is good; and install first sealed 14 through locating piece 13 one side, locating piece 13 one end transmission is connected with electric putter 7 for can drive locating piece 13 and the removal of first sealed 14 of filling up through electric putter 7 and adjust, thereby can seal the location to valve plate 9 outside middle part and handle, be convenient for improve structural stability and leakproofness when valve plate 9 closes.

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 above, 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 double-seal structure of metal seal butterfly valve, includes trunk line (1), its characterized in that: disk seat (2) are installed to trunk line (1) middle part one side, valve rod (4) are installed to disk seat (2) internal rotation, valve plate (9) are installed to valve rod (4) lower extreme, and valve plate (9) rotatory card establishes middle part in trunk line (1), hand wheel (3) are installed to valve rod (4) upper end, spacing seat (6) are installed to trunk line (1) middle part both sides, spout (8) have been seted up to spacing seat (6) inside, spout (8) internal sliding installs locating piece (13), first sealed pad (14) are installed to locating piece (13) one side, the sealed pad (15) of second is installed in the valve plate (9) outside, locating piece (13) one end transmission is connected with electric putter (7).

2. The dual sealing structure of a metal seal butterfly valve according to claim 1, wherein: the positioning blocks (13) are arranged into semi-arc-shaped blocks, and two groups of the positioning blocks (13) are symmetrically arranged relative to the valve rod (4).

3. The dual sealing structure of a metal seal butterfly valve according to claim 1, wherein: sealing positioning grooves (16) are formed in two sides of the outer portion of the valve rod (4), and the positioning block (13) and the first sealing gasket (14) are connected in the sealing positioning grooves (16) in a clamped mode.

4. The double sealing structure of the metal sealing butterfly valve according to claim 1, wherein: the electric push rod (7) and the positioning block (13) are fixedly connected through a telescopic rod (12), and the electric push rod (7) is fixedly installed on the outer side of the limiting seat (6).

5. The dual sealing structure of a metal seal butterfly valve according to claim 1, wherein: the two groups of second sealing gaskets (15) are arranged on the outer side of the valve plate (9) in parallel, and the second sealing gaskets (15) are arranged in a circular ring shape.

6. The double sealing structure of the metal sealing butterfly valve according to claim 1, wherein: spacing post (10) are installed to valve plate (9) downside, and spacing post (10) rotary joint is in spacing groove (11) of trunk line (1) inside.