CN212839509U

CN212839509U - O-shaped ball valve

Info

Publication number: CN212839509U
Application number: CN202021712518.5U
Authority: CN
Inventors: 朱杨东; 许战天; 翟正强; 汪辉
Original assignee: Nerfoss Fluid Technology Zhengzhou Co ltd
Current assignee: Nerfoss Fluid Technology Zhengzhou Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-03-30
Anticipated expiration: 2030-08-17

Abstract

The utility model provides a O type ball valve aims at solving at hard particles such as gangue or building rubbish serious, the low technical problem of life to the delivery flap wearing and tearing in transportation process. The utility model provides a O type ball valve, including the valve body seat that has central cavity, the central cavity is embedded to have the ball board with valve body seat looks adaptation, central cavity with the ball board position of cooperating is equipped with the sealing member, the sealing member with board ball interval 1 ~ 20 mm. The valve has the advantages of simple structure, low wear rate, long service life and the like.

Description

O-shaped ball valve

Technical Field

The utility model relates to the technical field of valves, concretely relates to O type ball valve.

Background

The underground filling technology of solid wastes such as coal gangue, construction waste and the like needs to fill all the gangue produced in coal mine production into the underground, so that the gangue is replaced by coal, no gangue is put into the well, no gangue dump is built on the ground, and the gangue is used for replacing coal resources, thereby achieving the purpose of comprehensively treating the gangue in the coal mine.

In the underground coal gangue backfilling process, the coal gangue is conveyed to the underground through a pipeline, but due to the reasons of high pressure, high coal gangue hardness, large crushed granularity and the like in the conveying process, a sealing ring and a ball plate in a conventionally used ball valve are in contact type sealing, the sealing surface is easily damaged when the ball valve is closed and opened, and the service life is greatly shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a O type ball valve suitable for coal gangue fills the transport of replacement coal in pit aims at solving among the prior art and carries the technical problem that the ball valve wearing and tearing are serious, life is short.

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

the design is an O-shaped ball valve, which comprises a valve body seat with a central inner cavity, wherein a ball plate matched with the valve body seat is embedded in the central inner cavity, a sealing piece is arranged in a gap between the central inner cavity and the ball plate, and the gap between the sealing piece and the outer wall of the ball plate is 1-20 mm.

Preferably, the clearance between the sealing element and the ball plate is 5-8 mm.

Preferably, the valve body seat comprises a first valve body seat and a second valve body seat movably mounted with the first valve body seat, the circumferential wall of the connecting end of the first valve body seat and the second valve body seat is in an inward concave arc shape which is symmetrical up and down, and the arc shape is matched with the ball plate.

Preferably, a groove for installing the sealing element is formed in the inner wall of the valve body seat.

Preferably, a circular channel is arranged in the central axis direction of the ball plate, and the circular channel and the central axis of the central cavity are in the same horizontal plane.

Preferably, the central lumen is a circular through hole.

Furthermore, the top and the bottom of the ball plate are respectively provided with a fixed rotating shaft.

Preferably, a valve rod for controlling the rotation of the ball plate is arranged on the periphery of the ball plate.

Preferably, the seal is a sealing ring.

Preferably, the valve body seat, the ball plate and the sealing element are made of cast steel, forged steel, stainless steel and/or ceramic.

Compared with the prior art, the invention has the beneficial technical effects that:

1. the utility model discloses a non-direct contact when guaranteeing the gangue and normally carrying between sealing member and the ball board, has reduced because of opening and shutting of ball valve and the wearing and tearing that cause between sealing member and the ball board, greatly increased the life of O type ball valve.

2. The utility model discloses optimized and set up the rotatory valve rod of control ball board on the outer wall of ball board to control opening and closing of O type ball valve, be equipped with fixed rotating shaft on the outer wall of the top of ball board and bottom respectively, with the space aversion that does not appear in the assurance at the rotatory in-process of ball board.

3. The utility model discloses the material of having optimized valve body seat, ball board and sealing member adopts cast steel, forged steel, stainless steel or pottery, and the wearability is strong, whole ball valve simple structure, the maintenance and the change of being convenient for.

Drawings

FIG. 1 is a front view of the open state of the O-shaped ball valve of the present invention;

FIG. 2 is a top view of the O-shaped ball valve of the present invention;

in the figure, 1 is a valve body seat, 10 is a central inner cavity, 2 is a ball plate, 20 is a circular channel, 3 is a sealing ring, and 4 is a valve rod.

Detailed Description

The following examples are intended to illustrate the present invention in detail and should not be construed as limiting the scope of the present invention in any way. The components and sensors and the like used in the following examples are all conventional commercially available products unless otherwise specified.

Example 1: the utility model provides a O type ball valve, see fig. 1 ~ 2, including the valve body seat 1 of the cast steel material that has central inner chamber 10, this valve body seat includes first valve body seat and passes through the fixed second valve body seat of flange with first valve body seat, the tip at first valve body seat and second valve body seat junction is sunken arc, this arc tip is the embedding by ball board 2 rather than the looks adaptation, the central axis direction of ball board 2 is provided with circular passageway 20, the shape and the size of central inner chamber 10 and circular passageway 20 preferably keep unanimous, and the central axis of both is in same horizontal plane, in order to guarantee unobstructed in the medium transport. The inner wall of the valve body seat is provided with a groove for fixing the sealing ring 3, and the gap between the sealing ring 3 and the outer wall of the ball plate 2 is 5 mm. Through indirect contact between the sealing ring 3 and the ball plate 2, normal conveying of coal gangue is guaranteed, meanwhile, abrasion between the sealing ring 3 and the ball plate 2 caused by opening and closing of the ball valve is reduced, and the service life of the O-shaped ball valve is greatly prolonged; the outer wall of the ball plate 2 is provided with a valve rod 4 for controlling the rotation of the ball plate 2, and the valve rod can be controlled by manual, electric, pneumatic and other modes.

The operation and use method of the O-shaped ball valve is as follows: when the crushed solid wastes such as coal gangue and construction waste are filled underground, the valve rod 4 fixed on the ball plate is rotated until the circular channel 20 corresponds to the central inner cavity 10, and at the moment, the solid wastes such as coal gangue and construction waste are transported through the pipe body, and when the filling operation is finished or temporarily stopped, the valve rod is rotated by 90 degrees.

While the present invention has been described in detail with reference to the drawings and the embodiments, those skilled in the art will understand that various specific parameters in the above embodiments can be changed without departing from the spirit of the present invention, and a plurality of specific embodiments are formed, which are common variation ranges of the present invention, and will not be described in detail herein.

Claims

1. An O-ring ball valve comprising a valve body seat having a central bore, wherein: the valve body seat is characterized in that a ball plate matched with the valve body seat is embedded in the central inner cavity, a sealing piece is arranged in a gap between the central inner cavity and the ball plate, and the gap between the sealing piece and the outer wall of the ball plate is 1-20 mm.

2. An O-ring ball valve as defined in claim 1, wherein: the clearance between the sealing element and the ball plate is 5-8 mm.

3. An O-ring ball valve as defined in claim 1, wherein: the valve body seat comprises a first valve body seat and a second valve body seat movably mounted on the first valve body seat, the circumferential wall of the connecting end of the first valve body seat and the second valve body seat is in an inward concave arc shape which is symmetrical up and down, and the arc shape is matched with the ball plate.

4. An O-ring ball valve as defined in claim 1, wherein: and a groove for mounting the sealing element is formed in the inner wall of the valve body seat.

5. An O-ring ball valve as defined in claim 1, wherein: a circular channel is arranged in the central axis direction of the ball plate, and the circular channel and the central axis of the central inner cavity are in the same horizontal plane.

6. An O-ring ball valve as defined in claim 1, wherein: the central cavity is a circular through hole.

7. An O-ring ball valve according to claim 5, wherein: and the top and the bottom of the ball plate are respectively provided with a fixed rotating shaft.

8. An O-ring ball valve as defined in claim 1, wherein: and a valve rod for controlling the rotation of the ball plate is arranged on the periphery of the ball plate.

9. An O-ring ball valve as defined in claim 1, wherein: the sealing element is a sealing ring.

10. An O-ring ball valve as defined in claim 1, wherein: the valve body seat, the ball plate and the sealing element are made of cast steel, forged steel, stainless steel and/or ceramic.