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CN-224229302-U - Metal sealing ball valve

CN224229302UCN 224229302 UCN224229302 UCN 224229302UCN-224229302-U

Abstract

The utility model provides a metal sealing ball valve which comprises a valve body and a valve cover, wherein the valve body is provided with a boss or a concave table, the valve cover is provided with a corresponding concave table or a boss, and when the valve body is connected with the valve cover, the concave table or the boss is mutually attached, so that the metal sealing at the joint of the valve body and the valve cover can be realized. The device is provided with the metal wire seal at the joint of the valve body and the valve cover, so that a new hard seal is added, a completely anaerobic space can be ensured, the complete solidification of glue is promoted, and the sealing performance of the valve is effectively enhanced.

Inventors

  • WU JIANFEI
  • ZHANG ZHANGXIANG
  • WANG ZHAO
  • Liu Nuoyi
  • WU HAIBO

Assignees

  • 宁波日安阀门有限公司

Dates

Publication Date
20260512
Application Date
20250512

Claims (10)

  1. 1. A metal sealing ball valve comprises a valve body (1) and a valve cover (2), and is characterized in that the valve body (1) is provided with a boss (12) or a concave table (11), the valve cover (2) is provided with a corresponding concave table (11) or a boss (12), when the valve body (1) is connected with the valve cover (2), the concave table (11) or the boss (12) are mutually attached, and metal sealing at the joint of the valve body (1) and the valve cover (2) can be achieved.
  2. 2. A metal seal ball valve according to claim 1, characterized in that the valve body (1) and the valve cap (2) are detachably connected by means of threads.
  3. 3. A metal seal ball valve according to claim 2, characterized in that the threaded connection of the valve body (1) and the valve cap (2) is provided with anaerobic glue (14).
  4. 4. A metal seal ball valve according to claim 1, characterized in that the valve body (1) is rotatably connected with a ball body (3), and that valve seats (4) in sliding contact with the ball body (3) are arranged in the valve body (1) and the valve cover (2).
  5. 5. The metal sealing type ball valve according to claim 4, wherein the valve body (1) is rotatably connected with a valve rod (5), the valve rod (5) can drive the ball body (3) to rotate, and a handle (9) is detachably connected to the upper end of the valve rod (5) after penetrating out of the valve body (1).
  6. 6. A metal seal ball valve according to claim 5, characterized in that a sealing ring (6) is arranged at the connection of the valve rod (5) and the valve body (1).
  7. 7. A metal seal ball valve according to claim 5, characterized in that a filler (7) is arranged at the joint of the valve rod (5) and the valve body (1), and the valve body (1) is in threaded connection with a gland (8) for fixing the filler (7).
  8. 8. A metal seal ball valve according to claim 7, characterized in that the packing (7) is a PTFE seal packing.
  9. 9. A metal seal ball valve according to claim 5, characterized in that the handle (9) is penetrated by the valve rod (5), the valve rod (5) is connected with a nut (10) in a threaded manner, and the nut (10) is abutted on the valve rod (5) for realizing the connection between the valve rod (5) and the handle (9).
  10. 10. A metal seal ball valve according to claim 4, characterized in that the ball body (3) is provided with a flow channel (13) for the passage of water.

Description

Metal sealing ball valve Technical Field The utility model relates to the technical field of valves, in particular to a metal sealing type ball valve. Background The ball valve is a common valve type, and is used for controlling the flow of fluid through a rotary ball body, in particular to a valve in which an opening and closing piece (ball body) is driven by a valve rod and rotates around the axis of the ball valve, and the ball valve is mainly used for cutting off, distributing and changing the flow direction of a medium in a pipeline and can also be used for regulating and controlling the fluid. The patent publication No. CN 219139885U discloses a ball valve stem and a ball valve, a valve body assembly, a valve core, a rotating part and an operating part, wherein the valve core is movably arranged in the valve body assembly, the rotating part is movably arranged in the valve body assembly, one end of the rotating part is in transmission connection with the valve core, and the operating part is in operative connection with the other end of the rotating part. However, the device has the following problems that when the valve body and the valve cover are connected, the valve body and the valve cover are connected through conventional threads, the connecting end surfaces of the valve body and the valve cover cannot be completely guaranteed to be completely flush during processing, and the sealing effect of the connecting part can be influenced if the end surfaces are provided with gaps and are not jointed after the threads are screwed. Disclosure of utility model In order to solve the problems in the prior art, a metal sealing ball valve is provided. The device is provided with the metal wire seal at the joint of the valve body and the valve cover, so that a new hard seal is added, a completely anaerobic space can be ensured, the complete solidification of glue is promoted, and the sealing performance of the valve is effectively enhanced. The technical scheme adopted for solving the technical problems is as follows: The utility model provides a metal sealing ball valve which comprises a valve body and a valve cover, wherein the valve body is provided with a boss or a concave table, the valve cover is provided with a corresponding concave table or a boss, and when the valve body is connected with the valve cover, the concave table or the boss is mutually attached, so that metal sealing at the joint of the valve body and the valve cover can be realized. Preferably, the valve body and the valve cover are detachably connected by adopting threads. Preferably, anaerobic glue is arranged at the threaded connection part of the valve body and the valve cover. Preferably, the valve body is rotationally connected with a ball, and valve seats in sliding contact with the ball are arranged in the valve body and the valve cover. Preferably, the valve body is connected with a valve rod in a rotating mode, the valve rod can drive the ball body to rotate, and the upper end of the valve rod penetrates out of the valve body and then is detachably connected with a handle. Preferably, a sealing ring is arranged at the joint of the valve rod and the valve body. Preferably, the joint of the valve rod and the valve body is provided with a filler, and the valve body is in threaded connection with a gland for fixing the filler. Preferably, the filler is a PTFE seal filler. Preferably, the handle is worn to establish by the valve rod, valve rod threaded connection has the nut, the nut butt is used for realizing the connection of valve rod and handle on the valve rod. Preferably, the ball body is internally provided with a circulation channel for water flow Compared with the prior art, the utility model has the beneficial effects that: According to the utility model, the valve body and the valve cover are connected in a mode of matching with anaerobic adhesive by threads, the adhesive plays roles of fixing and sealing, and the metal wire is arranged at the joint of the valve body and the valve cover for sealing, so that a novel hard seal is added in a mode of matching a boss and a concave table, a completely anaerobic space can be ensured, the complete solidification of the adhesive is promoted, and the sealing performance of the valve is effectively enhanced. Drawings The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which: FIG. 1 is an overall front view of the present utility model; FIG. 2 is a schematic view of the valve cover portion of FIG. 1; FIG. 3 is a schematic view of the valve body portion of FIG. 1. Reference numerals illustrate: 1 valve body, 2 valve cover, 3 sphere, 4 valve seat, 5 valve rod, 6 sealing ring, 7 filler, 8 gland, 9 handle, 10 nut, 11 concave table, 12 boss, 13 flow channel and 14 anaerobic glue. Detailed Description Embodiments of th