CN-224229304-U - Bidirectional hard sealing ball valve

Abstract

The utility model discloses a bidirectional hard sealing ball valve, which comprises an outer valve body and a ball valve body arranged in the outer valve body in a rotating way through a valve rod, wherein an outer wall of the middle part of the outer valve body is provided with an outer convex valve seat, the inner wall of the outer convex valve seat is provided with a limit groove, the outer side of the middle part of the ball valve body is provided with an outer convex valve body, the outer convex valve body is rotationally clamped on the inner wall of the limit groove, a first channel is arranged in the ball valve body, a second channel communicated with the first channel is arranged in the outer convex valve body, and a first through hole and a second through hole are arranged outside the second channel of the outer convex valve body.

Inventors

• ZOU LI
• WANG XIAOXIANG
• SUN HUANWEN
• CHEN ZHICHENG

Assignees

• 上海良工阀门厂有限公司

Dates

Publication Date

20260512

Application Date

20250530

Claims (6)

1. 1. The bidirectional hard sealing ball valve comprises an outer valve body (1) and a ball valve body (3) which is rotationally arranged inside the outer valve body (1) through a valve rod (4), and is characterized in that an outer convex valve seat (2) is arranged on the outer wall of the middle of the outer valve body (1), a limit groove (7) is formed in the inner wall of the outer convex valve seat (2), an outer convex valve body (13) is arranged on the outer side of the middle of the ball valve body (3), the outer convex valve body (13) is rotationally clamped on the inner wall of the limit groove (7), a first channel (11) is arranged inside the ball valve body (3), a second channel (12) which is communicated with the first channel (11) is arranged inside the outer convex valve body (13), and a first through hole (15) and a second through hole (14) are formed in the outer side of the second channel (12) of the outer convex valve body (13).
2. 2. The bidirectional hard sealing ball valve of claim 1, wherein the two ends of the outer valve body (1) are respectively provided with a water inlet pipe orifice (5) and a water outlet pipe orifice (6), and one ends of the water inlet pipe orifice (5) and the water outlet pipe orifice (6) are respectively provided with a flange (10).
3. 3. The bidirectional hard sealing ball valve according to claim 1, wherein the inner wall of the outer valve body (1) is provided with a first sealing gasket (9), and the inner wall of the limiting groove (7) is provided with a second sealing gasket (8).
4. 4. A bi-directional hard sealing ball valve according to claim 3, wherein the limiting groove (7) is provided as an annular groove and the male valve body (13) is provided as an annular member.
5. 5. The bidirectional hard sealing ball valve of claim 4, wherein the outer convex valve body (13) is fixedly welded at the outer middle part of the ball valve body (3), and the outer diameter of the outer convex valve body (13) is larger than the outer diameter of the ball valve body (3).
6. 6. The bidirectional hard sealing ball valve of claim 1, wherein a third through hole (16) is further formed in the middle inside the ball valve body (3), and a plurality of groups of third through holes (16) are transversely or longitudinally formed.

Description

Bidirectional hard sealing ball valve Technical Field The utility model relates to the technical field of ball valves, in particular to a bidirectional hard seal ball valve. Background The ball valve, the opening and closing part (ball) is driven by the valve rod and the valve which rotates around the axis of the ball valve is mainly used for cutting off, distributing and changing the flow direction of the medium in the pipeline, and can be tightly closed only by rotating by 90 degrees and small rotating moment. Therefore, the ball valve is widely applied to industries such as petroleum refining, long-distance pipeline, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and the like, and plays a role in national economy. A bi-directional hard seal ball valve refers to a ball valve ‌ that is capable of hard sealing in both directions. The utility model provides a two-way hard seal ball valve of application number 20232004343. X among the prior art, includes valve body, runner and is used for controlling the case of runner through rotatory, the case includes the spheroid, be equipped with metal seal on the valve body, the spheroid is including being used for with metal seal complex first spherical crown and second spherical crown, the adjustable messenger of distance between first spherical crown and the second spherical crown first spherical crown and second spherical crown are contactless with metal seal in the rotatory in-process. The ball valve can ensure that the ball body is not contacted with the metal sealing ring in the rotating process, so that the abrasion is reduced, but the horizontal rotation adjustment stability of the ball valve body is poor, and the water flow impact resistance of the outer wall of the ball valve body is weak. Disclosure of utility model The utility model aims to provide a bidirectional hard sealing ball valve, which solves the problems that the horizontal rotation adjustment stability of a ball valve body is poor and the water flow impact resistance of the outer wall of the ball valve body is weak in the prior art. The bidirectional hard sealing ball valve comprises an outer valve body and a ball valve body which is rotatably arranged in the outer valve body through a valve rod, wherein an outer convex valve seat is arranged on the outer wall of the middle of the outer valve body, a limiting groove is formed in the inner wall of the outer convex valve seat, an outer convex valve body is arranged on the outer side of the middle of the ball valve body, the outer convex valve body is rotatably clamped on the inner wall of the limiting groove, a first channel is formed in the inner portion of the ball valve body, a second channel communicated with the first channel is formed in the outer convex valve body, and a first through hole and a second through hole are formed in the outer side of the second channel of the outer convex valve body. Furthermore, both ends of the outer valve body are respectively provided with a water inlet pipe orifice and a water outlet pipe orifice, and one ends of the water inlet pipe orifice and the water outlet pipe orifice are respectively provided with a flange. Further, the inner wall of the outer valve body is provided with a first sealing gasket, and the inner wall of the limiting groove is provided with a second sealing gasket. Further, the limit groove is arranged as an annular groove, and the convex valve body is arranged as an annular piece. Further, the outer middle part of the ball valve body is fixedly welded with the outer protruding valve body, and the outer diameter of the outer protruding valve body is larger than that of the ball valve body. Further, a third through hole is further formed in the middle of the ball valve body, and a plurality of groups of third through holes are transversely or longitudinally formed. Compared with the prior art, the utility model has the beneficial effects that: According to the utility model, the outer wall of the middle part of the outer valve body is provided with the convex valve seat, the outer side of the middle part of the ball valve body is provided with the convex valve body which is horizontally and slidably arranged with the limiting groove in the convex valve seat, and the convex valve body and the limiting groove can be utilized to conduct sliding guide when the ball valve body is rotationally adjusted, so that the stability of the horizontal rotation adjustment of the ball valve body is improved, the stability of the rotation adjustment opening and closing of the ball valve body is improved, and meanwhile, the water flow impact resistance capability of the outer wall of the ball valve body is improved, so that the service life of the ball valve body is prolonged. According to the ball valve, the first sealing gasket is arranged on the inner wall of the outer valve body, the second sealing gasket is arranged on the inner wall of the