CN202171027U

CN202171027U - Ball valve device

Info

Publication number: CN202171027U
Application number: CN2011202323983U
Authority: CN
Inventors: 郝崇高
Original assignee: Fujian Feida Valve Co Ltd
Current assignee: Fujian Feida Valve Technology Co., Ltd.
Priority date: 2011-06-29
Filing date: 2011-06-29
Publication date: 2012-03-21
Anticipated expiration: 2021-06-29

Abstract

The utility model discloses a ball valve device which comprises a valve seat, a valve cover and a ball body that are assembled and connected together, wherein a ring-shaped notch is arranged at the periphery of the ball body corresponding to a revolving surface in the valve seat in a concave way; the ring-shaped notch is provided with a metal support ring which is matched and jointed with the ball body; a non-metal first sealing ring is also arranged among the valve seat, the ball body and the metal support ring; the valve seat is also provided with a sealed ring groove; and the first sealing ring is arranged in the sealed ring groove. The primary sealing and the secondary sealing of the first sealing ring are formed by the metal support ring and the wall of the sealed ring groove which are matched with each other, a fireproof and dustproof ring is arranged in front of a spring of the valve seat, and a second sealing ring and a dustproof check ring are arranged at rear of the spring of the valve seat, so that the spring can work normally in any state, and a gas-liquid particle mixture medium can be ensured to be completely sealed under the fireproof and dustproof condition.

Description

A kind of ball-cock device

Technical field

The utility model relates to a kind of ball-cock device.

Background technique

The basic structure of existing ball-cock device is valve seat, valve gap, places the spheroid between valve seat and the valve gap.Usually offer a seal ring connected in star in the nearly spheroid end face axial of valve seat, be provided with seal ring in the annular groove, the applying of seal ring and spheroid constitutes the sealing surface of valve seat and spheroid; But because the wear resistance of material itself is not enough; The part that seal ring exposes at valve pocket is prone to scratched through the fluid particle thing in the valve seat, can descend in case scratch sealing effect, and the protection problem of Regulation spring is seldom considered in simultaneously traditional valve seat construction design; Do not prevent that media particle from getting into the spring working area; Spring receives the corrosion of medium, and shortened its working life greatly, influences the normal use of ball valve.

The model utility content

The utility model provides a kind of ball-cock device, and it has overcome the existing deficiency of background technique ball-cock device.

The technological scheme that is adopted that the utility model solves its technical problem is:

A kind of ball-cock device; It comprises valve seat (10), valve gap (20) and the spheroid (30) that is connected; The periphery of the corresponding spheroid (30) of the interior turning surface of said valve seat (10) is arranged with annular short slot (11); Said annular short slot (11) locates to establish metallic support circle (40), said metallic support circle (40) and the adaptive applying of spheroid (30); Also establish nonmetallic first seal ring (50) between said valve seat (10), spheroid (30) and the metallic support circle (40).

Among one preferred embodiment: said valve seat (10) is established a closure gasket groove (12); Installing first seal ring (50) in the said closure gasket groove (12); Spheroid (30) is close in said first seal ring (50) one bights, and the interior turning surface of said first seal ring (50) is close to metallic support circle (40).

Among one preferred embodiment: be provided with spring regulating device between said valve seat (10) and the valve gap (20), said spring regulating device comprises spring seat (61) and spring (62), and said spring seat (61) structure is L-shaped; Be formed with a L shaped groove (63) between said valve seat (10) and the valve gap (20), said valve gap (20) is established the attaching slot (21) of a L shaped groove of connection (63); Said spring (62) is installed in the attaching slot (21), and said spring seat (61) is installed in the L shaped groove (63), and spring seat (61) is supported on said spring (62) top.

Among one preferred embodiment: said spring (62) elastic force direction and valve seat (10) parallel axes.

Among one preferred embodiment: establish a fire-proof and dust-proof circle (64) between said valve seat (10), valve gap (20) and the spring seat (61).

Among one preferred embodiment: establish second seal ring (22) between outer turning surface of said valve seat (10) and the interior turning surface of valve gap (20).

Among one preferred embodiment: the dirt of setting up defences between outer turning surface of said valve seat (10) and the interior turning surface of valve gap (20) retaining fat circle (23).

The present technique scheme is compared with background technique, and it has following advantage:

1, the sealing between valve seat and the spheroid comprises: adopt the metallic seal between metallic support circle and the spheroid; Adopt the nonmetal sealing of first seal ring; Two types of sealings are complementary, and the metal primary seal has guaranteed granule sealed, simultaneously fire prevention; Prolonged the working life of first seal ring, the sealing of first seal ring has guaranteed that gas seals fully;

2, set up spring regulating device, avoid wearing and tearing and the reduction sealability;

3, utilized the fire-proof and dust-proof circle simultaneously, and second seal ring and dustproof retaining ester circle, prevented that granule medium from getting into the spring working area, reduced the corrosion of particulate matter, formed protection, guaranteed under any state of spring all proper functioning spring to spring.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Fig. 1 has illustrated the ball-valve structure schematic representation of a preferred embodiment;

Fig. 2 has illustrated the A portion enlarged diagram of a preferred embodiment Fig. 1.

Embodiment

Please refer to Fig. 1 and Fig. 2; A kind of ball-cock device; It comprises valve seat 10, valve gap 20 and the spheroid 30 that is connected; The periphery of the corresponding spheroid 30 of turning surface is arranged with annular short slot 11 in valve seat 10, and these annular short slot 11 places establish

metallic support circle

40, and 30 adaptive applyings realize metallic seal to this metallic support circle 40 with spheroid; Between valve seat 10, spheroid 30 and metallic support circle 40, also establish nonmetallic first seal ring 50, realize nonmetal sealing.

Also be provided with a closure gasket groove 12, the first seal rings 50 on this valve seat 10 and be installed in the closure gasket groove 12, and first seal ring, 50 1 bights are close to spheroid 30, turning surface are close to metallic support circle 40 in this first seal ring 50.

Be provided with spring regulating device between said valve seat 10 and the valve gap 20, this spring regulating device comprises spring seat 61 and spring 62, and these spring seat 61 structures are L-shaped; Between valve seat 10 and valve gap 20, be formed with a L shaped groove 63, this valve gap 20 is established the attaching slot 21 of the L shaped groove 63 of a connection; This spring 62 is installed in the attaching slot 21, and this spring seat 61 is installed in the L shaped groove 63, and spring seat 61 is supported on spring 62 tops.These spring 62 elastic force directions and valve seat 10 parallel axes.

Establish a fire-proof and dust-proof circle 64 between said valve seat 10, valve gap 20 and the spring seat 61.Outside valve seat 10, be provided with one second seal ring 22 in turning surface and the valve gap 20 between the turning surface.Outside valve seat 10, be provided with a dustproof retaining fat circle 23 in turning surface and the valve gap 20 between the turning surface.

During use; Utilize metallic support circle 40 to cooperate and constituted sealing configuration with the cell wall of closure gasket groove 12; Wrapped up first sealing, the 50 circle exposed parts except that sealing surface, played the effect of protection first seal ring 50 on the one hand, solid particulate matter is to the scuffing of first seal ring 50 in the anti-fluid; The metal primary seal that forms on the other hand also is applicable to the sealing of the state of catching fire.Utilized fire-proof and dust-proof circle 64 simultaneously; And second seal ring 22 and dustproof retaining ester circle 23, prevented that granule medium from getting into the spring working area, reduce the corrosion of particulate matter to spring 62; Formation is to the protection of spring 62, guaranteed under spring 62 any states all proper functioning.

The above; Be merely the utility model preferred embodiment; So can not limit the scope that the utility model is implemented according to this, the equivalence of promptly doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model contains.

Claims

1. ball-cock device; It comprises valve seat (10), valve gap (20) and the spheroid (30) that is connected; It is characterized in that: the periphery of the corresponding spheroid (30) of the interior turning surface of said valve seat (10) is arranged with annular short slot (11); Said annular short slot (11) locates to establish metallic support circle (40), said metallic support circle (40) and the adaptive applying of spheroid (30); Also establish nonmetallic first seal ring (50) between said valve seat (10), spheroid (30) and the metallic support circle (40).

2. a kind of ball-cock device according to claim 1; It is characterized in that: said valve seat (10) is established a closure gasket groove (12); Installing first seal ring (50) in the said closure gasket groove (12); Spheroid (30) is close in said first seal ring (50) one bights, and the interior turning surface of said first seal ring (50) is close to metallic support circle (40).

3. a kind of ball-cock device according to claim 1 and 2 is characterized in that: be provided with spring regulating device between said valve seat (10) and the valve gap (20), said spring regulating device comprises spring seat (61) and spring (62), and said spring seat (61) structure is L-shaped; Be formed with a L shaped groove (63) between said valve seat (10) and the valve gap (20), said valve gap (20) is established the attaching slot (21) of a L shaped groove of connection (63); Said spring (62) is installed in the attaching slot (21), and said spring seat (61) is installed in the L shaped groove (63), and spring seat (61) is supported on said spring (62) top.

4. a kind of ball-cock device according to claim 3 is characterized in that: said spring (62) elastic force direction and valve seat (10) parallel axes.

5. a kind of ball-cock device according to claim 4 is characterized in that: establish a fire-proof and dust-proof circle (64) between said valve seat (10), valve gap (20) and the spring seat (61).

6. a kind of ball-cock device according to claim 4 is characterized in that: establish second seal ring (22) between outer turning surface of said valve seat (10) and the interior turning surface of valve gap (20).

7. a kind of ball-cock device according to claim 4 is characterized in that: the dirt of setting up defences between outer turning surface of said valve seat (10) and the interior turning surface of valve gap (20) retaining fat circle (23).