CN208457257U

CN208457257U - Durable ball valve

Info

Publication number: CN208457257U
Application number: CN201820488039.6U
Authority: CN
Inventors: 张无畏; 于风仙
Original assignee: ZHENGZHOU ZHONGLI PUMP VALVE MANUFACTURING Co Ltd
Current assignee: ZHENGZHOU ZHONGLI PUMP VALVE MANUFACTURING Co Ltd
Priority date: 2018-04-08
Filing date: 2018-04-08
Publication date: 2019-02-01
Anticipated expiration: 2028-04-08

Abstract

The utility model discloses a kind of durable ball valve, it is related to valve field, including valve seat, spool is provided in the valve seat, the spool is connected with the shaft extended to outside valve seat, the shaft upper end is provided with rotating handle, two bars for limiting rotating handle rotational angle are additionally provided on the valve seat, the seal ring apparatus of annular is provided on the valve base inner wall around inlet and outlet, the seal ring apparatus includes the ring-shaped groove being opened on valve base inner wall, sealing ring is provided in the groove, the sealing ring outer end face is provided with the convex stupefied of annular, the sealing ring outer end face is additionally provided with copper ring, the copper ring inner face is higher than sealing ring inner face, long service life, it operates light.

Description

Durable ball valve

Technical field

The utility model relates to valve field more particularly to a kind of durable ball valves.

Background technique

In China, ball valve be widely used petroleum refining, long-distance transport pipes, chemical industry, papermaking, pharmacy, water conservancy, electric power, The industries such as municipal administration, steel occupy very important status in national economy.It has the movement being rotated by 90 °, and faucet body is Sphere has circular through hole or channel to pass through its axis.

Ball valve is mainly used to make the flow direction for cutting off, distributing and changing medium in pipeline, it is only needed with rotation 90 The operation of degree and the rotating torque of very little can close tightly.Ball valve optimum switchs, stop valve uses, V-type ball valve.It is electronic Valve is in addition to it should be noted that pipe parameter, still it should be specifically noted that its environmental condition for using, due to the electric device in electrically operated valve It is an electromechanical equipment, use state is influenced very big by its use environment.

Existing ball valve mainly includes valve seat, and spool is provided in the valve seat, and the spool, which is connected with, extends to valve seat Outer shaft, the shaft upper end are provided with rotating handle, and two for limiting rotating handle rotational angle are additionally provided on the valve seat Bar is provided with sealing ring between spool and valve seat, and due to environment such as greasy dirts, sealing ring is easy aging, the sealing after aging It encloses hardness to increase, therefore sealing performance reduces, while can wear spool or valve seat.

Summary of the invention

The purpose of the utility model is to overcome deficiency in the prior art, it is light to provide a kind of long service life, operation Durable ball valve.

The utility model is achieved through the following technical solutions: a kind of durable ball valve, including valve seat, is set in the valve seat It is equipped with spool, the spool is connected with the shaft extended to outside valve seat, and the shaft upper end is provided with rotating handle, goes back on the valve seat Two bars for limiting rotating handle rotational angle are provided with, are provided on the valve base inner wall around inlet and outlet The seal ring apparatus of annular, the seal ring apparatus include the ring-shaped groove being opened on valve base inner wall, setting in the groove There is sealing ring, the sealing ring outer end face is provided with the convex stupefied of annular, and the sealing ring outer end face is additionally provided with copper ring, the copper Ring inner face is higher than sealing ring inner face.

Further, the convex stupefied two sides are provided with copper ring.

Further, elastic washer is provided between the sealing ring and trench bottom surfaces.

Further, the valve seat includes the two valve seat fissions that link together, the inlet and outlet difference of valve seat On two valve seat fissions, two seal ring structures are also set, respectively on two valve seat fissions for setting.

Further, bearing is provided between the shaft and valve seat.

Further, the spool lower end is provided with downward limited post, the limited post and shaft coaxial line, the limit Position column lower end is installed in valve seat.

The utility model has the beneficial effects that: setting groove, can be avoided sealing ring and move, copper ring is set, by There is good ductility in copper ring itself, can deform under stress, play sealing function, scrape and degrease, additionally, due to copper Greasy property, spool face can be made to form copper film, reduce the friction between sealing ring and spool, that improves sealing ring uses the longevity Life, and then improve the service life of ball valve.

Detailed description of the invention

Fig. 1 is 1 main view sectional view schematic diagram of embodiment；

Fig. 2 is 1 top view illustration of embodiment；

Fig. 3 is seal ring apparatus cross sectional view intention；

Fig. 4 is that valve seat separate structure diagram is intended to；

Wherein: 1- valve seat is seperated, 2- spool, 3- shaft, 4- rotating handle, 5- seal ring apparatus, 501- groove, 502- elastic cushion Circle, 503- sealing ring, 504- copper ring, 6- bearing, 7- limited post, 8- valve seat, 9- bar.

Specific embodiment

In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition Solve the concrete meaning of above-mentioned term in the present invention.

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Embodiment 1

As shown in Figs 1-4, a kind of durable ball valve, including valve seat 8, valve seat 8 include the two valve seat fissions 1 that link together, The inlet and outlet of valve seat 8 are separately positioned on two valve seat fissions 1, around water inlet or water outlet on valve seat fission 1 It is mounted on the seal ring apparatus 5 of annular, seal ring apparatus 5 includes the ring-shaped groove 501 that is opened on valve base inner wall, in groove It is equipped with the elastic washer 502 of annular, elastic washer is made of silicon rubber, and elastic property is good, and 502 outer end of elastic washer is equipped with The sealing ring 503 of annular, sealing ring is made of synthetic rubber, has good wear-resisting property, and sealing ring outer end face is integrally formed There is the convex stupefied of annular, convex stupefied two sides are mounted on copper ring 504, and copper ring is made of red copper, and ductility is good, have good lubricity Can, copper ring inner face is higher than sealing ring inner face, and sealing ring can be effectively protected, and spool, spool connection are equipped in valve seat There is the shaft 3 extended to outside valve seat, shaft upper end is equipped with rotating handle 4, is also equipped on valve seat for limiting rotating handle rotational angle Two bars 9.

Bearing 6 is installed between shaft 3 and valve seat 8, spool lower end is integrally fixed with downward limited post 7, limited post with Shaft coaxial line, limited post lower end are installed in valve seat, and the setting of bearing, copper ring and limited post can reduce spool and rotate Resistance in the process.

During use, when initial conditions, rotary spool, spool contacts sealing with copper ring to the present embodiment, at one section Between after, the convex stupefied sealing of spool and sealing ring, due to the effect of elastic washer, copper ring is contacted with spool always, can be effective It scrapes and degreases, prevent sealing ring aging, meanwhile, the copper film that spool face is formed can reduce the convex stupefied friction between spool, And then it improves and uses ball valve service life.

Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on, It should be included within the scope of protection of this utility model.

Claims

1. a kind of durable ball valve, including valve seat, it is provided with spool in the valve seat, the spool, which is connected with, to be extended to outside valve seat Shaft, the shaft upper end are provided with rotating handle, and two bars for limiting rotating handle rotational angle are additionally provided on the valve seat, It is characterized by: the seal ring apparatus of annular, the sealing are provided on the valve base inner wall around inlet and outlet Loop device includes the ring-shaped groove being opened on valve base inner wall, and sealing ring, the sealing ring outer end face are provided in the groove It is provided with the convex stupefied of annular, the sealing ring outer end face is additionally provided with copper ring, and the copper ring inner face is higher than sealing ring inner face.

2. durable ball valve according to claim 1, it is characterised in that: the convex stupefied two sides are provided with copper ring.

3. durable ball valve according to claim 1, it is characterised in that: be provided with bullet between the sealing ring and trench bottom surfaces Property washer.

4. durable ball valve according to claim 1, it is characterised in that: the valve seat includes two valve seats point that link together Body, the inlet and outlet of valve seat are separately positioned on two valve seat fissions, and two seal ring structures are also set, respectively on two On a valve seat fission.

5. durable ball valve according to claim 1, it is characterised in that: be provided with bearing between the shaft and valve seat.

6. durable ball valve according to claim 1, it is characterised in that: the spool lower end is provided with downward limited post, The limited post and shaft coaxial line, the limited post lower end is installed in valve seat.