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CN-121993626-A - Wear-resisting fixed ball valve

CN121993626ACN 121993626 ACN121993626 ACN 121993626ACN-121993626-A

Abstract

The application discloses a wear-resistant fixed ball valve, which belongs to the technical field of valves and comprises a valve body, wherein a circular groove is formed in the valve body, a ball body is arranged in the circular groove, a valve rod is fixed on the outer peripheral surface of the ball body, a through hole is formed in the top surface of the valve body, the through hole is communicated with the circular groove, the top end of the valve rod penetrates through the through hole, a packing box is arranged on the valve body, the valve rod penetrates through the packing box, a worm gear box is arranged on the top surface of the packing box, the top end of the valve rod is inserted into the worm gear box, the top end of the valve rod is fixedly connected with a worm wheel in the worm gear box in a coaxial manner, one end of a worm in the worm gear box penetrates out of the worm gear box, a rotating handle is fixed at one end of the worm in the worm gear box, an annular groove is formed in the inner peripheral surface of the circular groove, the annular groove is positioned on the peripheral side of the valve rod, an annular air bag is arranged in the annular groove, and an air inflation assembly for inflating the annular air bag is arranged on the valve body. The application has the effect of reducing water leakage at the joint of the valve rod and the valve body.

Inventors

  • YE JIJUN
  • REN SHAOJIE
  • LI HUI
  • GUAN LEYONG
  • Zheng Jujiong
  • Sun Chaowan

Assignees

  • 慎江阀门有限公司

Dates

Publication Date
20260508
Application Date
20260303

Claims (10)

  1. 1. The wear-resistant fixed ball valve is characterized by comprising a valve body (1), wherein a circular groove (11) is formed in the valve body (1), a ball body (12) is arranged in the circular groove (11), a valve rod (13) is fixed on the outer peripheral surface of the ball body (12), a through hole (17) is formed in the top surface of the valve body (1), the through hole (17) is communicated with the circular groove (17), the top end of the valve rod (13) passes through the through hole (17), a stuffing box (14) is arranged on the valve body (1), the valve rod (13) passes through the stuffing box (14), a worm and worm wheel box (15) is arranged on the top surface of the stuffing box (14), the top end of the valve rod (13) is inserted into the worm and worm wheel box (15), the top end of the valve rod (13) is fixedly connected with the worm and coaxially in the worm and fixedly, one end of the worm in the worm and worm wheel box (15) passes through the worm and worm wheel box (15), the top end of the worm wheel box (15) is provided with a circular groove (21), the annular groove (2) is formed in the inner peripheral surface of the annular groove (2), an inflation assembly for inflating the annular air bag (21) is arranged on the valve body (1).
  2. 2. The wear-resistant fixed ball valve according to claim 1, wherein the outer peripheral surface of the annular air bag (21) is fixedly provided with two air inlet pipes (23), the inner peripheral surface of the annular groove (2) is provided with two connecting holes (22), the connecting holes (22) penetrate through the top surface of the valve body (1), the air inlet pipes (23) are inserted and fixed in the connecting holes (22), the outer peripheral surface of the valve rod (13) is sleeved with a mounting seat (3), the mounting seat (3) is positioned between the packing box (14) and the valve body (1), the mounting seat (3) is fixedly connected with the packing box (14) and the valve body (1) through bolts, the mounting seat (3) is internally provided with a cavity (33), the inner bottom surface of the cavity (33) is provided with two mounting grooves (34), the inner bottom surface of the mounting groove (34) is provided with a plug hole (35), the air inflation assembly comprises an air inflation bag (4) arranged in the mounting groove (34), the outer peripheral surface of the air inflation valve (13) is sleeved with a plug hole (42), the inner peripheral surface of the air inflation pipe (4) is fixedly connected with the connecting pipe (41) along the plug hole (42), an extrusion part for extruding the inflatable bag (4) is arranged in the mounting groove (34).
  3. 3. The wear-resistant fixed ball valve of claim 2, wherein the annular groove (2) is formed in the bottom surface of the mounting seat (3), the central axis of the annular groove (2) is collinear with the central axis of the plug hole (35), a rubber ring (37) is fixed in the annular groove (2), and the bottom end of the rubber ring (37) is abutted against the top surface of the valve body (1).
  4. 4. The wear-resistant fixed ball valve as claimed in claim 2, wherein the inner peripheral surface of the insertion hole (35) is provided with a through groove (43), the through groove (43) penetrates through the outer peripheral surface of the mounting seat (3), the outer peripheral surface of the connecting pipe (42) is fixed with a moving rod (44), and one end, away from the connecting pipe (42), of the moving rod (44) penetrates through the through groove (43).
  5. 5. The wear-resistant fixed ball valve as claimed in claim 4, wherein a first spring (45) is fixed to the top surface of said movable rod (44), and the top end of said first spring (45) is fixed to the inner top surface of said through groove (43).
  6. 6. The wear-resistant fixed ball valve according to claim 2, wherein the pressing member comprises a sliding block (5) vertically arranged in the mounting groove (34) in a sliding manner, the bottom end of the sliding block (5) is abutted against the inflatable bag (4), two driving blocks (54) are fixed on the outer peripheral surface of the valve rod (13), and the driving blocks (54) can drive the sliding block (5) to press the inflatable bag (4).
  7. 7. The wear-resistant fixed ball valve as claimed in claim 6, wherein the top surface of the sliding block (5) is provided with an arc surface (55), the bottom surface of the driving block (54) is provided with an arc groove (56), and the inner wall of the arc groove (56) can drive the arc surface (55) to move downwards.
  8. 8. The wear-resistant fixed ball valve of claim 6, wherein limiting blocks (51) are fixed on two side surfaces of the sliding block (5), limiting grooves (52) are formed in opposite inner side surfaces of the mounting groove (34), and the limiting blocks (51) are slidably arranged in the limiting grooves (52).
  9. 9. The wear-resistant fixed ball valve as claimed in claim 8, wherein the bottom surface of the limiting block (51) is fixed with a second spring (53), and the bottom end of the second spring (53) is fixed on the inner bottom surface of the limiting groove (52).
  10. 10. The wear-resistant fixed ball valve as claimed in claim 2, wherein the mounting seat (3) comprises a first mounting block (31) and a second mounting block (32) which are oppositely arranged, and the first mounting block (31) and the second mounting block (32) are fixedly connected through bolts.

Description

Wear-resisting fixed ball valve Technical Field The invention relates to the technical field of valves, in particular to a wear-resistant fixed ball valve. Background The fixed ball valve generally comprises a valve body, a valve seat, a valve cover, a valve rod and a ball body, wherein the lower end of the valve rod is fixedly connected with the ball body, a trunnion is fixedly connected with the ball body at the other end of the joint of the ball body and the valve rod, the trunnion is in movable fit connection with the valve body, and the valve seat adopts a floating structure. The valve seat of the existing fixed ball valve is generally characterized in that valve seats are respectively arranged at the inlet and outlet passage openings of the valve body and form double valve seats with a ball body to be matched and sealed, and a single valve seat is arranged in the outlet passage of the valve body and is pressed and sealed by pushing the ball body to the valve seat by utilizing the thrust of a medium. When the fixed ball valve is used for a long time, particles deposited on the inner wall of the valve cavity are easy to abrade the outer surfaces of the ball body and the valve rod, so that the ball body can not seal the valve cavity when the valve is closed, and the possibility of water leakage at the joint of the valve rod and the valve body is caused. Disclosure of Invention In order to solve the problem that the valve rod and the outer surface of the ball body are worn in the long-time use process of the fixed ball valve, and water leakage occurs at the joint of the valve rod and the valve body, the application provides the wear-resistant fixed ball valve. The application provides a wear-resistant fixed ball valve, which adopts the following technical scheme: The utility model provides a wear-resisting fixed ball valve, includes the valve body, the circular slot has been seted up in the valve body, be provided with the spheroid in the circular slot, spheroidal outer peripheral face is fixed with the valve rod, the through-hole has been seted up to the top surface of valve body, the through-hole with the circular slot is linked together, the top of valve rod passes the through-hole, be provided with the packing case on the valve body, the valve rod passes the top surface of packing case is provided with the worm gear case, the top of valve rod is inserted and is located in the worm gear case, the top of valve rod with the coaxial fixed connection of worm wheel in the worm gear case, worm one end in the worm gear case wears out the worm gear case, the one end of worm in the worm gear case is fixed with the rotating handle, the ring channel has been seted up to the inner peripheral face of circular slot, the ring channel is located the week side of valve rod, be provided with annular gasbag in the ring channel, be provided with on the valve body be used for to the inflated subassembly in the annular gasbag. Through adopting above-mentioned technical scheme, when rotating the valve rod and driving the spheroid and rotate, when making water pass the spheroid, start the subassembly that inflates, inflate the subassembly and inflate in to annular gasbag, when making to be full of gas in the annular gasbag, make annular gasbag take place to expand, annular gasbag's outer peripheral face and spheroidal outer peripheral face looks butt seal between spheroid and the valve body to reduce the valve and use for a long time in-process, the wearing and tearing take place for the outer peripheral face of spheroid and valve rod, the possibility that the junction that makes valve rod and valve body takes place to leak. Preferably, the outer peripheral surface of annular gasbag is fixed with two intake pipes, two connecting holes have been seted up to the inner peripheral surface of ring channel, the connecting hole runs through the top surface of valve body, the intake pipe inserts to be established and is fixed in the connecting hole, the outer peripheral surface cover of valve rod is equipped with the mount pad, the mount pad is located the packing box with between the valve body, the mount pad pass through the bolt respectively with packing box with valve body fixed connection, the cavity has been seted up in the mount pad, two mounting grooves have been seted up to the inner bottom surface of cavity, the spliced eye has been seted up to the inner bottom surface of mounting groove, the inflation subassembly including set up in the inflatable bag in the mounting groove, the outer peripheral surface of inflatable bag is fixed with the gas tube, the gas tube is inserted and is located in the spliced eye, be provided with the connecting pipe along vertical slip in the spliced eye, the bottom of connecting pipe is inserted and is located in the connecting hole extrusion piece is provided with in the mounting groove. Through adopting above-mentioned technical scheme, the extrusion air bag makes the air bag aerify in to the