CN-224214804-U - Pneumatic hard sealing ball valve

Abstract

The utility model discloses a pneumatic hard sealing ball valve, which relates to the field of ball valves and solves the problems of complicated press mounting operation and limited sealing effect in the prior art; the pneumatic hard sealing ball valve comprises a ball valve body, a through pipe, an inner pressure plate, an arc pressing block, clamping parts, a pneumatic hard sealing ball valve and a sealing gasket, wherein the end of the through pipe is provided with the outer pressure plate, the end of the valve pipe is provided with the inner pressure plate which is matched with the outer pressure plate in specification, the inner pressure plate is provided with the arc pressing block with the opposite position, the clamping parts positioned on the inner side of the arc pressing block are arranged on the two sides of the top and bottom of the outer pressure plate, the inner pressure plate and the outer pressure plate are mutually assembled through bolt pieces, the pressing effect can be guaranteed through the arrangement of each structure between the ball valve body and the through the rotation and the arrangement of two groups of bolt pieces, and meanwhile in the pressing process, the sealing gasket is pressed by the continuous pressing between the ball valve body and the sealing gasket, so that the sealing gasket is deformed and filled in a gap between the sealing effect is guaranteed.

Inventors

• HUANG JIANYONG
• FAN CHENGDONG
• ZHENG ZHANXIN

Assignees

• 浙江上业阀门科技有限公司

Dates

Publication Date

20260508

Application Date

20250624

Claims (5)

1. 1. The pneumatic hard sealing ball valve is characterized by comprising a ball valve body (1) and a regulating valve (2) for regulating the ball valve body at the top of the ball valve body, wherein a valve pipe (3) is arranged at the inner end and the outer end of the ball valve body (1), and the outer end of the valve pipe (3) is connected with a through pipe (4); The end department of siphunculus (4) is provided with outer pressure disk (9), the end department of valve pipe (3) is provided with interior pressure disk (5) with outer pressure disk (9) specification looks adaptation, be equipped with arc clamp block (6) that the position is relative on interior pressure disk (5), the top and bottom both sides of outer pressure disk (9) are provided with clamping portion (12) that are located arc clamp block (6) inboard, assemble each other through bolt piece (8) between interior pressure disk (5) and outer pressure disk (9), and press and have sealing gasket between interior pressure disk (5) and the outer pressure disk (9).
2. 2. The pneumatic hard sealing ball valve according to claim 1, wherein the inner pressing disc (5) is provided with inner screw holes (7) with opposite positions at two sides, the inner pressing disc (5) is provided with outer screw holes (10) with opposite positions at two sides, the outer screw holes (10) and the inner screw holes (7) are assembled through bolt pieces (8), and a nut seat is sleeved on the bolt pieces (8) in a threaded manner.
3. 3. The pneumatic hard sealing ball valve according to claim 1, wherein the clamping part (12) on the outer pressure plate (9) is an arc-shaped part, an inward-cutting guide surface (11) is arranged on the top side edge of the clamping part (12), and two groups of clamping parts (12) on the outer pressure plate (9) are wedged inside an arc-shaped pressing block (6) on the inner pressure plate (5).
4. 4. The pneumatic hard sealing ball valve according to claim 1, wherein the arc pressing block (6) is an arc-shaped L-shaped block, and the inner edge of the inner side of the arc pressing block (6) is provided with an embedded wedge clamping part which is matched with the specification of the clamping part (12).
5. 5. The pneumatic hard sealing ball valve according to claim 1, wherein a ring groove is formed in the middle of a sealing gasket between the inner pressure disc (5) and the outer pressure disc (9), and the shape of the sealing gasket is matched with the specifications of the outer pressure disc (9) and the inner pressure disc (5).

Description

Pneumatic hard sealing ball valve Technical Field The utility model relates to the technical field of ball valves, in particular to a pneumatic hard seal ball valve. Background The ball valve is sealed by hard, the ball body and the valve seat are subjected to pairing grinding, and all sealing areas of the whole sealing surface of the ball valve are subjected to precise grinding, so that the ball valve is suitable for high-temperature and high-pressure water, steam, petroleum, coal, fiber, thick and corrosive media and media with particles; Through searching, in the application of patent application number 202421128595.4, a pneumatic hard sealing ball valve is disclosed, which relates to the technical field of hard sealing ball valves, and comprises a valve body, a water inlet pipe is arranged at a water inlet of the valve body, a connecting bin is arranged on the outer wall of the water inlet pipe, the inside of the connecting bin is communicated with the inside of a water inlet pipe, a sliding plate is connected in the connecting bin in a sliding manner, a sealing plate is fixedly connected to one side of the sliding plate, a hollow plate is arranged on the sliding plate by arranging the connecting bin and the sliding plate, the hollow plate is utilized to trap solids in fluid, the hollow plate is gathered in the step groove, and the connecting bin is used for accommodating the sliding plate, so that the sliding plate is separated from the water inlet pipe, the filtering effect on the fluid is lost, the smooth fluid delivery of the valve body is ensured, and meanwhile, the solid trapped on the sliding plate can be taken out by the connecting bin for detection; In an industrial fluid control system, a sealing ball valve is used as a key component, and detection and control of inner fluid are realized through precise matching of components such as a valve core, a valve seat and the like. However, the current mainstream sealing ball valves still adopt a traditional bolt assembly packaging mode in the connection assembly link. In particular, the connection of the valve body to the pipe or other equipment typically requires 6 to 8 bolts to be tightened, and not only is the bolt hole sites repeatedly aligned during assembly, but also multiple tightening in a diagonal order using specific tools is required to ensure seal uniformity. The operation mode is complex in working procedure, long in time consumption, greatly reduces engineering installation efficiency, meanwhile, the multi-bolt structure is large in installation space requirement, difficult to spread in a narrow working condition environment, and the bolts are easy to loosen, rust and the like after long-term use, so that the risk of sealing failure exists. Therefore, we propose a pneumatic hard seal ball valve. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides a pneumatic hard sealing ball valve, which solves the problems of complicated press fitting operation and limited sealing effect in the prior art. The pneumatic hard sealing ball valve comprises a ball valve body and a regulating valve, wherein the top of the regulating valve is used for regulating the ball valve body; The end department of siphunculus is provided with outer pressure disk, the end department of valve pipe is provided with the interior pressure disk with outer pressure disk specification looks adaptation, be equipped with the arc clamp block that the position is relative on the interior pressure disk, the top end both sides of outer pressure disk are provided with the clamping portion that is located the arc clamp block inboard, assemble each other through the bolt spare between interior pressure disk and the outer pressure disk, and press and be equipped with sealing gasket between interior pressure disk and the outer pressure disk. As a preferable scheme of the utility model, two sides of the inner pressure disk are provided with built-in screw holes with opposite positions, two sides of the inner pressure disk are provided with external screw holes with opposite positions, the external screw holes and the built-in screw holes are assembled through bolt pieces, and a nut seat is sleeved on the bolt pieces in a threaded manner; The inner pressure plate and the outer pressure plate are pressed by the rotation of the bolt, and the sealing gasket between the inner pressure plate and the outer pressure plate is pressed efficiently, so that the sealing effect is ensured. As a preferable scheme of the utility model, the clamping part on the outer pressure plate is an arc part, the top side edge of the clamping part is provided with an inward-cutting guide surface, and two groups of clamping parts on the outer pressure plate are wedged inside an arc pressing block on the inner pressure plate; The guide surface is convenient to wedge the inner side of the arc pressing block from the side part during press fitting, is simple to operate and high