CN217482016U - Detachable rotary ball valve - Google Patents

Abstract

The utility model discloses a can dismantle ball-spinning valve, it includes: the valve body is internally provided with a valve seat and a valve clack, the upper part of the valve clack is connected with an upper valve rod, the lower part of the valve clack is connected with a lower valve rod, a valve seat pressing ring is detachably connected with the valve body, the valve seat is arranged between the valve seat pressing ring and the valve body, a valve clack cover plate is detachably connected on the valve clack, a sealing ring is arranged between the valve clack cover plate and the valve clack, the contact part of the sealing ring and the valve seat is an arc surface, the contact part of the valve seat and the sealing ring is also an arc surface, and hard sealing is arranged on the two arc surfaces. The maintenance efficiency is greatly improved, and the maintenance difficulty is reduced.

Description

Detachable rotary ball valve

Technical Field

The utility model relates to a valve especially relates to a can dismantle ball-rotating valve.

Background

The common rotary ball valve mainly comprises a valve body, a valve seat, a valve clack, an upper valve rod, a lower valve rod, packing, a packing gland, a connecting disc, an actuating mechanism and the like. Because the valve body contains a large amount of solid particles in the medium, the valve clack can not be completely hidden in the valve body due to the short structure of the valve body, the solid particles in the medium can cause certain damage to the sealing surface of the valve clack when the valve is opened for a long time, or the solid particles easily accumulate scabs, form crystals and the like on the sealing surfaces of the valve seat and the valve clack when the viscosity of the medium is too high, so that the valve can be not closed tightly, and internal leakage is caused. However, when the valve flap is maintained, the valve flap can be maintained only by completely disassembling the valve, and meanwhile, the valve seat is generally fixedly connected to the valve body and can only be repaired by repairing, and when the valve flap and the valve seat are seriously damaged, the valve flap can only return to the original factory to repair or replace the whole valve, which is time-consuming and labor-consuming.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can dismantle ball-cock assembly to overcome the inconvenient problem of maintenance that prior art exists at present.

The utility model aims at realizing through the following structure, it includes: the valve body is equipped with disk seat and valve clack in the valve body, and valve rod under the connection of valve clack upper portion connection, valve seat clamping ring can dismantle with the valve body and be connected, is equipped with the disk seat between disk seat clamping ring and valve body, can dismantle on the valve clack and connect the valve clack apron, is equipped with the sealing washer between valve clack apron and valve clack, and the sealing washer is the cambered surface with the contact department of disk seat, and the disk seat also is the cambered surface with the contact department of sealing washer, and all is equipped with hard seal on two cambered surfaces.

The valve clack cover plate is spherical.

The utility model discloses a can dismantle the sealing washer and the disk seat of connection, only need the scene change when sealing washer and disk seat appear damaging the part can, improved maintenance efficiency greatly, reduced the maintenance degree of difficulty, the contact department of sealing washer and disk seat has the shearing effect for the cambered surface simultaneously, can clear away scale deposit on the sealed face, adnexed solid particle and play better sealed effect. Secondly, the valve clack apron is the sphere, and is difficult to be deformed when bearing bigger medium pressure, and it makes the valve clack reduce to receive the influence of temperature and corruption, has improved the life of valve clack greatly. And thirdly, the sealing ring, the valve clack and the upper valve rod are arranged eccentrically, and the self-locking positioning of the valve is realized by utilizing the eccentric wedge principle, so that the valve cannot be opened due to medium pressure, and meanwhile, the valve is convenient to open and close.

Drawings

Fig. 1 is a longitudinal sectional view of the present invention, fig. 2 is an enlarged view of the point i in fig. 1, and fig. 3 is a transverse sectional view of the present invention.

Detailed Description

As shown in fig. 1 and 2, the embodiment of the present invention includes: valve body 1, establishes disk seat 3 and valve clack 7 in the valve body 1, and valve rod 9 is connected on 7 upper portions of valve clack, valve rod 8 under 7 sub-unit connection of valve clack, disk seat clamping ring 2 can dismantle with valve body 1 through the screw and be connected, is equipped with disk seat 3 between disk seat clamping ring 2 and valve body 1, also can dismantle through screw 4 on the valve clack 7 and connect valve clack apron 5, is equipped with sealing washer 6 between valve clack apron 5 and valve clack 7, and sealing washer 6 is the metal system and does not have elasticity, and sealing washer 6 is the cambered surface with the contact department of disk seat 3, and all is equipped with hard seal on two cambered surfaces. The valve flap cover plate 5 is spherical to protect the valve flap 7 on one side thereof.

As shown in FIG. 3, the upper valve rod 9 and the lower valve rod are arranged concentrically, the axial center of the upper valve rod 9 and the center of the sealing ring have a front and rear eccentric E1, and the axial center of the upper valve rod 9 and the center of the valve clack have a left and right eccentric E2.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention, and many modifications may be made to the embodiments without departing from the spirit or scope of the invention. Therefore, all technical solutions the same as or similar to the present embodiment fall within the protection scope of the present invention.

Claims (2)

1. A removable rotary ball valve, comprising: the valve body, establish disk seat and valve clack in the valve body, valve clack upper portion is connected and is connected the upper valve rod, and valve clack lower part is connected lower valve rod, its characterized in that: the valve body can be dismantled with the disk seat clamping ring and be connected, is equipped with the disk seat between disk seat clamping ring and the valve body, can dismantle on the valve clack and connect the valve clack apron, is equipped with the sealing washer between valve clack apron and valve clack, and the department of contact of sealing washer and disk seat is the cambered surface, and the department of contact of disk seat and sealing washer also is the cambered surface, and all is equipped with hard seal on two cambered surfaces.

2. A detachable rotary ball valve according to claim 1, wherein: the valve clack cover plate is spherical.

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