CN213271071U

CN213271071U - Anti-leakage valve

Info

Publication number: CN213271071U
Application number: CN202022311724.1U
Authority: CN
Inventors: 王帅; 胡亮; 王凯; 肖冬喜
Original assignee: Wuhan Fenyuan Technology Co ltd
Current assignee: Wuhan Fenyuan Technology Co ltd
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-05-25
Anticipated expiration: 2030-10-16

Abstract

The utility model discloses a leakage-proof valve, which belongs to the technical field of valves and comprises a conical pin rod, wherein the outer side wall of the conical pin rod is provided with a groove, the conical pin rod is connected with the inner side wall of a conical pin seat in an adaptive way through the groove and a convex point, the inner side wall of the conical pin seat is welded with the convex point, the conical pin seat is welded at the middle part of the outer side wall of a valve plate, the middle parts of the conical pin seat and the conical pin rod are provided with screw holes, the inner side wall of the screw holes is connected with a bolt, the outer side wall of the valve plate is detachably connected with a sealing ring B, the outer side wall of the valve plate is connected with a valve seat through the sealing ring B and the sealing ring A, the sealing ring A is detachably arranged at the inner side wall of the, the valve plate is connected firmly, is difficult to become flexible and drops, prolongs the life of valve.

Description

Anti-leakage valve

Technical Field

The utility model relates to a valve field specifically is a prevent leaking valve.

Background

The valve is a control part in a fluid conveying system, has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure, and the like, has various types, is one of the butterfly valves, and is generally suitable for pipelines in industry, metallurgy, environmental protection and the like to ventilate and adjust the flow of a medium.

The prior art valves have the following disadvantages: 1. the valve in the prior art generally comprises a valve body, a valve rod, a valve core and the like, a sealing pair of the valve rod and the valve core generally adopts a point-surface sealing mode, and the valve core is easy to cause sealing abrasion in the rotating process to cause leakage; 2. the valve plate of the valve in the prior art is connected to the valve rod in a taper pin mode, so that an expansion gap between the valve plate and the valve rod is small, and the valve rod and the valve plate are easily connected and loosened due to expansion caused by heat and contraction caused by cold. Accordingly, a leak-proof valve is provided by those skilled in the art to solve the problems set forth in the background above.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a leakage-proof valve, which adopts double-layer sealing ring sealing, has good sealing effect and excellent leakage-proof performance, the outer side wall of the valve plate is detachably connected with a sealing ring B, the inner side wall of the valve seat is detachably connected with a sealing ring A, when the valve is closed, the sealing ring B of the outer side wall of the valve plate slowly slides in from the bottom of the sealing ring A of the inner side wall of the valve seat until the groove at the top of the sealing ring B is in adaptive connection with the convex peak at the top of the sealing ring A, the unique groove and convex peak are in matched connection to prevent the sealing ring A and the sealing ring B from deforming and damaging in the opening and closing process, the rubber ring of the sealing ring is soft and elastic, can rapidly rebound under normal temperature, has good sealing effect, when the rubber ring of the sealing ring is deformed for many times and damaged, the damaged rubber ring is, until the whole slip rubber intra-annular of anchor, the umbelliform structure of anchor is convenient for inject the rubber intra-annular, even if be convenient for the installation, the rubber ring is difficult to drop, the utility model discloses prevent that the leakage valve adopts circular cone round pin and bolted connection complex mode, the valve plate is connected firmly, be difficult to not hard up and drop, the life of extension valve, when needs installation valve plate, aim at circular cone key seat circular cone pin pole with the circular cone key seat of valve plate, slide circular cone pin pole into circular cone key seat inside wall, until the recess on circular cone pin pole surface and the bump adaptation of circular cone key seat inside wall are connected, ensure that the connection of circular cone pin pole and circular cone key seat is more firm, screw in the screw through-hole at bolt precession circular cone pin pole and circular cone key seat middle part, further consolidate the connection to solve the problem that proposes.

In order to achieve the above object, the utility model provides a following technical scheme:

including circular cone pin pole, circular cone pin pole lateral wall is seted up flutedly, circular cone pin pole passes through recess and bump and circular cone key seat inside wall adaptation connection, circular cone key seat inside wall welding has the bump, circular cone key seat welding is at valve plate lateral wall middle part, the screw has all been seted up at circular cone key seat and circular cone pin pole middle part, screw inside wall and bolted connection, the valve plate lateral wall can be dismantled and be connected with sealing ring B, the valve plate lateral wall passes through sealing ring B and sealing ring A and is connected with the disk seat, sealing ring A demountable installation is at the disk seat inside wall, circular cone pin pole top fixedly connected with valve rod.

As a further aspect of the present invention: the sealing ring A comprises a rubber ring and an anchor, the inner side wall of the rubber ring is detachably connected with the anchor, the anchor is welded on the inner side wall of the valve seat, and the structure of the sealing ring B is the same as that of the sealing ring A.

As a further aspect of the present invention: the opening of the outer side wall of the valve seat is fixedly connected with a flange and is detachably connected with a pipeline through the flange.

As a further aspect of the present invention: the lower part of the outer side wall of the valve rod is connected with the inner side wall of the valve seat through a filler.

As a further aspect of the present invention: the upper portion of the outer side wall of the valve rod is connected with the gear box, and a hand wheel is welded to the top of the valve rod.

As a further aspect of the present invention: the bottom of the conical pin rod is rotatably connected with the valve seat through a lower shaft sleeve and a lower gland.

As a further aspect of the present invention: .

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

1. the utility model discloses a leak-proof valve adopts double-deck sealing ring to seal, and is sealed effectual, and leak-proof performance is excellent, and the valve plate lateral wall can be dismantled and be connected with sealing ring B, and the valve seat inside wall can be dismantled and be connected with sealing ring A, when closed valve, sealing ring B of valve plate lateral wall slowly slides in from the sealing ring A bottom of valve seat inside wall, until the recess at sealing ring B top and the crest adaptation connection at sealing ring A top, the form of unique recess and crest cooperation connection prevents sealing ring A and sealing ring B to warp the damage in the process of opening and shutting, the rubber ring quality of sealing ring is soft elastic, can kick-back rapidly under normal atmospheric temperature, and is sealed effectual, when the rubber ring of sealing ring warp the number of times and damages many, dismantle the rubber ring that damages, aim the nail face at the top of the rivet with the mounting hole of new rubber, the umbrella-shaped structure of anchor nail is convenient for inject the rubber intra-annular, even if be convenient for the installation, the rubber ring is difficult to drop, solves the problem that the valve sealing performance among the prior art is poor, easily reveal.

2. The utility model discloses prevent leaking the valve and adopt circular cone round pin and bolted connection complex mode, the valve plate is connected firmly, be difficult to not hard up and drop, the life of extension valve, when needs installation valve plate, aim at circular cone key seat circular cone round pin pole with the circular cone key seat of valve plate, slide circular cone key pole into circular cone key seat inside wall, until the recess on circular cone key pole surface and the bump adaptation connection of circular cone key seat inside wall, ensure that the connection of circular cone key pole and circular cone key seat is more firm, with the screw through-hole at bolt precession circular cone key pole and circular cone key seat middle part, further consolidate and connect, it is unstable to be connected between the valve plate of valve among the solution prior art and valve rod, the problem that easily becomes flexible.

Drawings

Fig. 1 is a schematic view of an overall structure of a leak-proof valve according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a sealing ring of a leak-proof valve according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a valve plate of a leak-proof valve according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a taper pin rod of a leak-proof valve according to an embodiment of the present invention.

In the figure: 1. a hand wheel; 2. a gear case; 3. a valve stem; 4. a valve seat; 5. a valve plate; 6. a flange; 7. a sealing ring A; 8. a seal ring B; 9. a rubber ring; 10. anchoring the bolts; 11. nailing surfaces; 12. a nail rod; 13. a screw hole; 14. a conical pin boss; 15. a conical pin rod; 16. salient points; 17. a groove; 18. a bolt; 19. and (4) filling.

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. 1-4, in the embodiment of the utility model, a prevent leaking valve, including circular cone pin pole 15, recess 17 has been seted up to circular cone pin pole 15 lateral wall, circular cone pin pole 15 passes through recess 17 and bump 16 and the 14 inside wall adaptation of circular cone pin seat, the welding of 14 inside walls of circular cone pin seat has bump 16, the welding of circular cone pin seat 14 is at 5 lateral wall middle parts of valve plate, screw 13 has all been seted up at circular cone pin seat 14 and circular cone pin pole 15 middle part, the 13 inside walls of screw are connected with

bolt

18, 5 lateral walls of valve plate can be dismantled and be connected with sealing ring B8, 5 lateral walls of valve plate pass through sealing ring B8 and sealing ring A7 and be connected with the disk seat 4, sealing ring A7 demountable installation is at 4 inside walls of disk seat, circular cone pin pole.

The sealing ring A7 comprises a rubber ring 9 and an anchor 10, the inner side wall of the rubber ring 9 is detachably connected with the anchor 10, the anchor 10 is welded on the inner side wall of the valve seat 4, the sealing ring B8 is the same as the sealing ring A7 in structure, and the umbrella-shaped structural rubber ring of the anchor 10 conveniently slides in from the top of the anchor 10 and is difficult to pull out reversely.

Wherein, 4 lateral wall opening part fixedly connected with flange 6 of disk seat and through flange 6 and pipeline detachable connection, the mode of flange 6 connection is very convenient and sealing performance is good.

Wherein, the lower part of the outer side wall of the valve rod 3 is connected with the inner side wall of the valve seat 4 through a packing 19, and the packing 19 prevents the valve rod 3 from inclining.

Wherein, 3 lateral wall upper portion of valve rod is connected with gear box 2, the welding of 3 tops of valve rod has hand wheel 1, and the part at 4 tops of convenient protection disk seats of gear box 2 has dirt-proof effect.

The bottom of the conical pin rod 15 is rotatably connected with the valve seat 4 through a lower shaft sleeve and a lower pressing cover, the lower pressing cover plays a role in pressing the bottom of the conical pin rod 15, and the lower shaft sleeve facilitates the conical pin rod 15 to rotate on the inner side wall of the valve seat 4.

The utility model discloses a theory of operation is: the utility model discloses a leak-proof valve adopts double-deck sealing ring to seal, it is sealed effectual, it is excellent to prevent leakage performance, valve plate 5 lateral wall can be dismantled and be connected with sealing ring B8, valve seat 4 inside wall can be dismantled and be connected with sealing ring A7, when closed valve, sealing ring B8 of valve plate 5 lateral wall slowly slips into from the sealing ring A7 bottom of valve seat 4 inside wall, until recess 17 and the protruding peak adaptation at sealing ring B8 top are connected at the sealing ring A7 top, unique recess and protruding peak cooperation connected form prevent sealing ring A7 and sealing ring B8 in the opening and shutting in-process deformation damage, the rubber ring 9 of sealing ring is soft and elastic, can kick-back rapidly under normal atmospheric temperature, it is sealed effectual, when the rubber ring 9 of sealing ring is out of shape many times and damages, dismantle the rubber ring 9 that will damage, aim at the nail face 11 of 10 tops with the mounting hole of new rubber ring 9, until anchor nail 10 slides into rubber ring, the umbelliform structure of anchor nail 10 is convenient for inject in the rubber ring 9, even if in installation, rubber ring 9 is difficult to drop, the utility model discloses prevent that the leakage valve adopts taper pin and bolted connection complex mode, and valve plate 5 connects firmly, is difficult to become flexible and drops, prolongs the life of valve, when needs installation valve plate 5, aims at taper pin pole 15 with the taper pin seat 14 of valve plate 5, slides taper pin pole 15 into taper pin seat 14 inside wall, and until the recess 17 on taper pin pole 15 surface and the 16 adaptation connections of bump of taper pin seat 14 inside wall, it is more firm to ensure that the connection of taper pin pole 15 and taper pin seat 14 is more firm, in screwing the screw 13 through-hole at taper pin pole 15 and taper pin seat 14 middle part with bolt 18, further consolidate the connection.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A leak-proof valve comprising a conical pin rod (15), characterized in that: the outer side wall of the conical pin rod (15) is provided with a groove (17), the conical pin rod (15) is connected with the inner side wall of the conical pin seat (14) in an adaptive manner through the groove (17) and the salient point (16), salient points (16) are welded on the inner side wall of the conical pin seat (14), the conical pin seat (14) is welded in the middle of the outer side wall of the valve plate (5), screw holes (13) are respectively arranged in the middle parts of the conical pin seat (14) and the conical pin rod (15), the inner side wall of the screw hole (13) is connected with a bolt (18), the outer side wall of the valve plate (5) is detachably connected with a sealing ring B (8), the outer side wall of the valve plate (5) is connected with the valve seat (4) through a sealing ring B (8) and a sealing ring A (7), sealing ring A (7) demountable installation is in disk seat (4) inside wall, circular cone pin pole (15) top fixedly connected with valve rod (3).

2. A leak-resistant valve as defined in claim 1, wherein: the sealing ring A (7) comprises a rubber ring (9) and an anchor (10), the inner side wall of the rubber ring (9) is detachably connected with the anchor (10), the anchor (10) is welded on the inner side wall of the valve seat (4), and the structure of the sealing ring B (8) is the same as that of the sealing ring A (7).

3. A leak-resistant valve as defined in claim 1, wherein: the opening of the outer side wall of the valve seat (4) is fixedly connected with a flange (6) and detachably connected with a pipeline through the flange (6).

4. A leak-resistant valve as defined in claim 1, wherein: the lower part of the outer side wall of the valve rod (3) is connected with the inner side wall of the valve seat (4) through a packing (19).

5. A leak-resistant valve as defined in claim 1, wherein: the upper portion of the outer side wall of the valve rod (3) is connected with the gear box (2), and a hand wheel (1) is welded at the top of the valve rod (3).

6. A leak-resistant valve as defined in claim 1, wherein: the bottom of the conical pin rod (15) is rotatably connected with the valve seat (4) through a lower shaft sleeve and a lower pressing cover.