CN212775694U

CN212775694U - Special ball valve with multi-stage sealing surfaces

Info

Publication number: CN212775694U
Application number: CN202021547283.9U
Authority: CN
Inventors: 吴雪
Original assignee: Zigong Feiqiu Special Valve Mfg Co ltd
Current assignee: Zigong Feiqiu Special Valve Mfg Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-03-23
Anticipated expiration: 2030-07-30

Abstract

The utility model relates to the technical field of special ball valves and discloses a special ball valve with multi-stage sealing surfaces, which comprises a valve body, wherein a valve core is arranged inside the valve body, a first sealing layer matched with the valve core is bonded inside the valve body, and the top of the valve body is communicated with a connecting pipe; the utility model discloses a connecting pipe, the connecting block, sealing bearing, the valve rod, the rotating ring, the spacing ring, the sealing washer, a groove, the setting of seal groove and valve gap, the special ball valve of having solved present multistage sealed face can't prevent the rusty problem of valve rod when using, this ball valve is through covering the valve rod with sealed mode, make the inside that the sun can't shine the valve body, the inside that the moisture in the air can't enter into the valve body simultaneously also, and the inside that the air that has moisture can't enter into the valve body, the rusty condition just can no longer appear in nature also for valve body and valve rod, not only effectual life who prolongs the ball valve, the use of on-the-spot fluidics can not delay again simultaneously.

Description

Special ball valve with multi-stage sealing surfaces

Technical Field

The utility model relates to a special ball valve technical field specifically is a special ball valve of multistage sealed face.

Background

The ball valve is a valve whose opening and closing piece is driven by a valve rod and makes rotary motion around the axis of the ball valve, and can also be used for regulating and controlling fluid, and is divided into a pneumatic ball valve, an electric ball valve and a manual ball valve according to the driving mode, in China, the ball valve is widely applied to industries such as petroleum refining, long-distance pipelines, chemical industry, paper making, pharmacy, water conservancy, electric power, municipal administration, steel and the like, in chemical engineering, water conservancy and steel engineering, special ball valves with multi-stage sealing surfaces are used, when the special ball valves with the multi-stage sealing surfaces are placed outdoors, the sun can directly irradiate the ball valve, rainwater can also directly spray the surface of the valve rod of the ball valve, the situation of rusting can easily occur in the place where the valve rod and the valve body are connected in long-term placement, and after the valve rod and the valve body of the ball valve rust, a user thinks to open again, a large amount of time is consumed, the service life of the ball valve can be greatly shortened, and meanwhile, the rusty ball valve can delay the use of fluid on site, so that the special ball valve with the multi-stage sealing surface is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a special ball valve of multistage sealed face possesses the rusty advantage of valve rod of preventing, has solved the problem that can't prevent that the valve rod can rust when using of current special ball valve of multistage sealed face.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a special ball valve of multistage sealed face, includes the valve body, the inside of valve body is equipped with the case, the inside bonding of valve body has the sealing layer one that uses with the case cooperation, the top intercommunication of valve body has the connecting pipe, the inside of connecting pipe is embedded to have the connecting block, the inside of connecting block is embedded to have sealed bearing, sealed bearing's inside is rotated and is cup jointed the valve rod with the case bolt joint, the swivel becket has been cup jointed in the surface rotation of valve rod, the spacing ring has been cup jointed on the surface of swivel becket, the bottom of spacing ring bonds and has the sealing washer, the top of connecting pipe is seted up flutedly, the seal groove that uses with the sealing washer cooperation is seted up to the inside of recess, the top.

Preferably, the interior of the valve body is sprayed with silica sol.

Preferably, the two ends of the valve body are bolted with flange plates, a plurality of through holes are formed in the flange plates, and flow guide holes matched with the valve body are formed in the flange plates.

Preferably, the inside of the valve cover is integrally injected with a rotating handle.

Preferably, the valve cover is U-shaped.

Preferably, the sealing layer II is filled in the connecting pipe and positioned at the bottom of the connecting block.

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

the utility model discloses a connecting pipe, the connecting block, sealing bearing, the valve rod, the rotating ring, the spacing ring, the sealing washer, a groove, the setting of seal groove and valve gap, the special ball valve of having solved present multistage sealed face can't prevent the rusty problem of valve rod when using, this ball valve is through covering the valve rod with sealed mode, make the inside that the sun can't shine the valve body, the inside that the moisture in the air can't enter into the valve body simultaneously also, and the inside that the air that has moisture can't enter into the valve body, the rusty condition just can no longer appear in nature also for valve body and valve rod, not only effectual life who prolongs the ball valve, the use of on-the-spot fluidics can not delay again simultaneously.

Drawings

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

FIG. 2 is an enlarged view of a portion A of FIG. 1 according to the present invention;

FIG. 3 is a top view of the connecting tube of the present invention;

fig. 4 is a side view of the flange plate of the present invention.

In the figure: 1. a valve body; 2. a valve core; 3. a first sealing layer; 4. a connecting pipe; 5. connecting blocks; 6. sealing the bearing; 7. a valve stem; 8. a rotating ring; 9. a limiting ring; 10. a seal ring; 11. a groove; 12. a sealing groove; 13. a valve cover; 14. silica sol; 15. a flange plate; 16. a through hole; 17. a flow guide hole; 18. turning the hand; 19. and a second sealing layer.

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.

Referring to fig. 1-4, a special ball valve with multi-stage sealing surfaces comprises a valve body 1, a valve core 2 is arranged inside the valve body 1, a sealing layer 3 matched with the valve core 2 is bonded inside the valve body 1, a connecting pipe 4 is communicated with the top of the valve body 1, a connecting block 5 is embedded inside the connecting pipe 4, a sealing bearing 6 is embedded inside the connecting block 5, a valve rod 7 bolted with the valve core 2 is rotatably sleeved inside the sealing bearing 6, a rotating ring 8 is rotatably sleeved on the surface of the valve rod 7, a limiting ring 9 is sleeved on the surface of the rotating ring 8, a sealing ring 10 is bonded at the bottom of the limiting ring 9, a groove 11 is formed in the top of the connecting pipe 4, a sealing groove 12 matched with the sealing ring 10 is formed inside the groove 11, a valve cover 13 is bolted to the top end of the valve rod 7, and a valve cover 13 is connected through the connecting pipe 4, the connecting, Spacing ring 9, sealing washer 10, recess 11, the setting of seal groove 12 and valve gap 13, the special ball valve of having solved present multistage sealed face can't prevent the rusty problem of valve rod when using, this ball valve is through covering the valve rod with sealed mode, make the inside that the sun can't shine the valve body, the inside that also makes the moisture in the air can't enter into the valve body simultaneously, and the inside that has the air of moisture can't enter into the valve body, valve body and valve rod just can no longer appear rusty condition naturally, not only effectual life who prolongs the ball valve, the use of on-the-spot convection cell can not delay again simultaneously.

Furthermore, silica sol 14 is sprayed inside the valve body 1, and the corrosion resistance of the valve core 2 is improved through the arrangement of the silica sol 14.

Further, the ring flange 15 has all been bolted at the both ends of valve body 1, and a plurality of through-hole 16 has been seted up to the inside of ring flange 15, and the water conservancy diversion hole 17 that uses with the cooperation of valve body 1 has been seted up to the inside of ring flange 15, through the setting of ring flange 15, through-hole 16 and water conservancy diversion hole 17, lets the user can directly install this ball valve through the flange.

Furthermore, a rotating hand 18 is integrally molded inside the valve cover 13, and the rotating hand 18 is arranged to facilitate the rotation of the valve cover 13 by a user.

Furthermore, the valve cover 13 is U-shaped, and the valve cover 13 is U-shaped, so that the function of sun protection for the valve rod 7 is achieved, and rainwater cannot directly contact with the valve rod 7.

Furthermore, the sealing layer II 19 is filled in the connecting pipe 4 and at the bottom of the connecting block 5, and the sealing performance of the ball valve is effectively improved by the arrangement of the sealing layer II 19.

The working principle is as follows: when the sun shines the ball valve, the valve gap 13 at the top end of the valve rod 7 can shield the sunlight, so that the sunlight cannot enter the inside of the connecting pipe 4, when raining, rainwater can directly flow through the surface of the valve body 1 along the valve gap 13, and moisture in the air can directly enter the inside of the valve gap 13 from the bottom of the valve gap 13 when flowing in the air in rainy days, the moisture can be blocked in the inside of the connecting pipe 4 by the sealing ring 10 and the sealing groove 12 after entering the valve gap 13 and cannot continuously flow to the inside of the valve body 1, and if the moisture enters the connecting pipe 4 from the junction of the rotating ring 8 and the limiting ring 9, the moisture can be blocked by the sealing bearing 6 again after entering the connecting pipe 4, then the air cannot enter the inside of the connecting pipe 4 again, and the ball valve cannot rust.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a special ball valve of multistage sealed face, includes valve body (1), its characterized in that: the valve comprises a valve body (1), a valve core (2) is arranged in the valve body (1), a sealing layer (3) matched with the valve core (2) for use is bonded in the valve body (1), a connecting pipe (4) is communicated with the top of the valve body (1), a connecting block (5) is embedded in the connecting pipe (4), a sealing bearing (6) is embedded in the connecting block (5), a valve rod (7) bolted with the valve core (2) is sleeved in the sealing bearing (6) in a rotating mode, a rotating ring (8) is sleeved on the surface of the valve rod (7) in a rotating mode, a limiting ring (9) is sleeved on the surface of the rotating ring (8), a sealing ring (10) is bonded at the bottom of the limiting ring (9), a groove (11) is formed in the top of the connecting pipe (4), a sealing groove (12) matched with the sealing ring (10) for use is formed in the groove, the top end of the valve rod (7) is bolted with a valve cover (13).

2. A special ball valve with multi-stage sealing surfaces according to claim 1, characterized in that: silica sol (14) is sprayed inside the valve body (1).

3. A special ball valve with multi-stage sealing surfaces according to claim 1, characterized in that: the two ends of the valve body (1) are bolted with flange plates (15), a plurality of through holes (16) are formed in the flange plates (15), and flow guide holes (17) matched with the valve body (1) are formed in the flange plates (15).

4. A special ball valve with multi-stage sealing surfaces according to claim 1, characterized in that: the inside of the valve cover (13) is integrally injected with a rotating handle (18).

5. A special ball valve with multi-stage sealing surfaces according to claim 1, characterized in that: the valve cover (13) is U-shaped.

6. A special ball valve with multi-stage sealing surfaces according to claim 1, characterized in that: and a second sealing layer (19) is filled in the connecting pipe (4) and positioned at the bottom of the connecting block (5).