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CN-224229369-U - Ball valve that connection stability is high

CN224229369UCN 224229369 UCN224229369 UCN 224229369UCN-224229369-U

Abstract

The utility model discloses a ball valve with high connection stability, which relates to the technical field of ball valves and comprises a ball valve body, wherein the outer wall of the ball valve body is sleeved with a handle, the outer wall threaded connection of ball valve body has the stainless steel cover, and the outer wall of stainless steel cover inlays respectively and is equipped with inflation sealing mechanism and extrusion fixed establishment. According to the utility model, the expansion sealing mechanism is matched with the stainless steel sleeve, the joint between the ball valve body and the PEX pipeline can be sealed by utilizing the expansion of the annular expansion air bag, the sealing effect is enhanced, meanwhile, buffering can be carried out under the vibration of the pipeline, the connection between the ball valve body and the PEX pipeline is not easy to loose, the connection stability is improved, a pair of arc clamping plates can be driven to be extruded and fixed by the extrusion fixing mechanism, the connection between the ball valve body and the PEX pipeline is reinforced, meanwhile, the entry of foreign matters and the impact force can be reduced by matching with the elastic deformation isolation net, and the connection stability of the ball valve body and the PEX pipeline is ensured.

Inventors

  • FANG CHENJIE
  • WANG XIZHONG
  • HUANG LIFENG
  • GUO ZHENG
  • ZHANG KEDI

Assignees

  • 宁波会德丰铜业有限公司

Dates

Publication Date
20260512
Application Date
20250511

Claims (7)

  1. 1. The ball valve with high connection stability comprises a ball valve body (1) and is characterized in that a handle (2) is sleeved on the outer wall of the ball valve body (1), a stainless steel sleeve (3) is connected to the outer wall of the ball valve body (1) in a threaded mode, an expansion sealing mechanism (4) and an extrusion fixing mechanism (5) are respectively embedded in the outer wall of the stainless steel sleeve (3), and the expansion sealing mechanism (4) and the extrusion fixing mechanism (5) are located on the outer side of the ball valve body (1).
  2. 2. The ball valve with high connection stability according to claim 1, wherein the expansion sealing mechanism (4) comprises a pair of external frames (401), one ends of the external frames (401) are fixedly connected with the outer wall of the stainless steel sleeve (3), one far away sides of the external frames (401) are respectively provided with an extrusion screw (402), one far away ends of the external frames (401) are respectively provided with a threaded hole, one near ends of the extrusion screw (402) are respectively provided with a threaded hole, the threaded holes extend into the external frames (401), one ends of the external frames (401) are respectively connected with a piston plate (403) in a sliding mode, one ends of the piston plates (403) are rotatably connected with one ends of the extrusion screw (402), the outer wall of the ball valve body (1) is sleeved with an annular expansion air bag (405), the inner wall of the annular expansion air bag (405) is contacted with the outer wall of the ball valve body (1), the outer wall of the annular expansion air bag (405) is fixedly connected with a pair of air pipes (404), and one ends of the air pipes (404) far away from the annular expansion air bag (405) are respectively connected with one end of the stainless steel sleeve (3).
  3. 3. The ball valve with high connection stability according to claim 2, wherein the extrusion fixing mechanism (5) comprises a pair of connecting plates (501), one ends, close to the connecting plates (501), of the connecting plates (501) are fixedly connected with extrusion rods (502) and a pair of round rods (505), a pair of through holes are cut in the outer wall of the stainless steel sleeve (3), one ends, far away from the connecting plates (501), of the extrusion rods (502) penetrate through the through holes, arc clamping plates (503) are fixedly connected, an elastic deformation separation net (504) is fixedly connected between the outer wall of the arc clamping plates (503) and the inner wall of the stainless steel sleeve (3), round holes are cut in one ends, far away from the connecting plates (501), of the round rods (505), and one ends, far away from the connecting plates (501), of the round rods (505) are fixedly connected with one ends of the piston plates (403).
  4. 4. The ball valve with high connection stability according to claim 3, wherein the inner walls of the pair of through holes are fixedly connected with sealing rings (6), and the inner walls of the sealing rings (6) are in close contact with the outer wall of the extrusion rod (502).
  5. 5. The ball valve with high connection stability according to claim 1, wherein the outer wall of the ball valve body (1) is fixedly connected with a plurality of annular convex blocks (7), and a plurality of annular grooves (8) are cut into the outer wall of the ball valve body (1).
  6. 6. The ball valve with high connection stability according to claim 1, wherein the outer wall of the handle (2) is sleeved with a rubber sleeve (9), and the surface of the rubber sleeve (9) is provided with anti-skid patterns.
  7. 7. The ball valve with high connection stability according to claim 1, wherein the outer wall of the ball valve body (1) is provided with external threads (10), the inner wall of the stainless steel sleeve (3) is provided with internal threads (11), and the external threads (10) are in threaded connection with the internal threads (11).

Description

Ball valve that connection stability is high Technical Field The utility model relates to the technical field of ball valves, in particular to a ball valve with high connection stability. Background Ball valves are a common type of fluid control valve that controls the opening and closing of a fluid by rotating a ball, and are generally composed of a valve body, a ball, a valve seat, a valve stem, and a driving structure. Ball valves are commonly used in the fields of household water supply and heating, industrial production, gas and garden irrigation, and in water supply, water discharge and heating systems, PEX pipes are often used to connect the two ends of the ball valve. At present, when the ball valve is connected with the PEX pipeline, the PEX pipeline is driven to be sleeved on one end of the ball valve in a hot welding mode and is fixedly connected by matching with the annular concave-convex connecting structure, but when the ball valve and the PEX pipeline are used under working conditions such as water flow pressure or temperature change or pipeline vibration for a long time, the ball valve and the PEX pipeline are easy to loosen, and the connection stability of the ball valve and the PEX pipeline is influenced. Disclosure of utility model The utility model aims to make up the defects of the prior art and provides a ball valve with high connection stability. In order to achieve the purpose, the ball valve with high connection stability comprises a ball valve body, wherein the outer wall of the ball valve body is sleeved with a handle, the outer wall of the ball valve body is in threaded connection with a stainless steel sleeve, the outer wall of the stainless steel sleeve is respectively embedded with an expansion sealing mechanism and an extrusion fixing mechanism, and the expansion sealing mechanism and the extrusion fixing mechanism are both positioned on the outer side of the ball valve body. Above-mentioned, inflation sealing mechanism includes a pair of external frame, a pair of the one end of external frame all with the outer wall fixed connection of stainless steel cover, a pair of one side that external frame kept away from all is equipped with extrusion screw, and a pair of the one end that external frame kept away from all digs threaded hole, a pair of the one end that extrusion screw is close to all passes the screw hole to extend to external frame inside, a pair of the equal sliding connection of inner wall of external frame has the piston board, and the one end of piston board rotates with the one end of extrusion screw to be connected, the outer wall cover of ball valve body is equipped with annular inflation gasbag, and the inner wall of annular inflation gasbag contacts with the outer wall of ball valve body, the outer wall fixedly connected with a pair of air duct of annular inflation gasbag, the one end that annular inflation gasbag was kept away from to the air duct runs through the inner wall of stainless steel cover to with the one end fixed connection of external frame. Above-mentioned, extrusion fixed establishment includes a pair of linking board, a pair of the equal fixedly connected with extrusion rod of one end that the linking board is close to mutually and a pair of round bar, the outer wall of stainless steel cover is excavated and is had a pair of through-hole, and the one end that the linking board was kept away from to the extrusion rod passes the through-hole to fixedly connected with arc splint, fixedly connected with elastic deformation separates the net between the outer wall of arc splint and the stainless steel cover inner wall, a pair of the one end that the external frame kept away from mutually all is excavated the round hole, a pair of round bar is kept away from the one end of linking board all and is passed the round hole to with the one end fixed connection of piston board. The inner walls of the through holes are fixedly connected with the sealing rings, and the inner walls of the sealing rings are in close contact with the outer wall of the extrusion rod. Above-mentioned, the outer wall fixedly connected with of ball valve body a plurality of annular lug, and the outer wall of ball valve body has excavated a plurality of annular grooves. Above-mentioned, the outer wall of handle has cup jointed the rubber cover, and the surface of rubber cover is equipped with anti-skidding line. Above-mentioned, the outer wall of ball valve body is equipped with the external screw thread, the inner wall of stainless steel cover is equipped with the internal screw thread, and external screw thread and internal screw thread threaded connection. Compared with the prior art, the ball valve with high connection stability has the following beneficial effects: 1. According to the utility model, the expansion sealing mechanism is matched with the stainless steel sleeve, so that the joint between the ball valve body and the PEX pipeline can be sealed by utilizing the expan