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CN-121474354-B - All-metal hard seal butterfly valve

CN121474354BCN 121474354 BCN121474354 BCN 121474354BCN-121474354-B

Abstract

The invention relates to the technical field of butterfly valves, in particular to an all-metal hard sealing butterfly valve, which comprises a butterfly valve main body and a fixed frame fixedly arranged on the butterfly valve main body, wherein the outer wall of the butterfly valve main body is fixedly connected with a fixed seat, a bevel gear driving box is fixedly arranged on the fixed seat, the output end of the bevel gear driving box is fixedly connected with a rotating rod, and a valve clack is fixedly connected on the rotating rod.

Inventors

  • CHEN RUNFU

Assignees

  • 沪航科技集团有限公司
  • 上海沪航阀门有限公司

Dates

Publication Date
20260508
Application Date
20260108

Claims (5)

  1. 1. The all-metal hard sealing butterfly valve comprises a butterfly valve main body (1) and a fixed frame (10) fixedly arranged on the butterfly valve main body (1), and is characterized in that the outer wall of the butterfly valve main body (1) is fixedly connected with a fixed seat (4), a bevel gear driving box (5) is fixedly arranged on the fixed seat (4), the output end of the bevel gear driving box (5) is fixedly connected with a rotating rod (7), a valve clack (32) is fixedly connected on the rotating rod (7), the outer contour of the valve clack (32) is matched with the inner contour of the butterfly valve main body (1), one end of the rotating rod (7) is fixedly connected with a rotating frame (11), the rotating frame (11) is rotatably arranged on the inner wall of the fixed frame (10), a piston (18) is slidably arranged on the inner wall of the rotating frame (11), a second sleeve (13) is fixedly connected with the outer wall of the piston (18), a first sleeve (12) is sleeved on the outer wall of the second sleeve (13), a vortex fan (25) is fixedly connected on the first sleeve (12), and the first sleeve (12) is rotatably arranged on the inner wall of the rotating frame (11). One end of the vortex fan (25) is fixedly connected with a conveying screw (28), a plurality of second liquid outlet holes (26) are formed in the rotating frame (11), a groove (27) is formed in the rotating rod (7), a through groove (29) is formed in the groove (27), one end of the rotating frame (11) is rotationally connected with the inner wall of the through groove (29), a plurality of third liquid outlet holes (30) are formed in the inner wall of the through groove (29), a plurality of bearings (31) are rotationally arranged on the inner wall of the butterfly valve main body (1), and the bearings (31) are sleeved on the rotating rod (7); The outer wall of the second sleeve (13) is rotatably provided with a second ball (22), the inner wall of the first sleeve (12) is provided with a spiral track groove (23), and the second ball (22) is slidably arranged on the inner wall of the spiral track groove (23); a plurality of first liquid outlet holes (14) are formed in the second sleeve (13), the second sleeve (13) is hollow, a through hole (15) is formed in the piston (18), and the through hole (15) is communicated with the inner wall of the second sleeve (13); An abutting rod (19) is fixedly connected to the outer wall of the piston (18), a first ball (20) is rotatably arranged at one end of the abutting rod (19), and a plurality of conical protruding blocks (21) which are annularly distributed are fixedly connected to the inner wall of the fixed frame (10); the outer wall of the piston (18) is fixedly connected with a return spring (24), and one end of the return spring (24) is fixedly connected with the inner wall of the rotating frame (11).
  2. 2. The all-metal hard sealing butterfly valve of claim 1, wherein the outer wall of the piston (18) is fixedly connected with a transfusion tube (16), the transfusion tube (16) is slidably connected to the inner wall of the fixed frame (10), and a sealing plug (17) is slidably arranged at one end of the transfusion tube (16).
  3. 3. The all-metal hard sealing butterfly valve of claim 1, wherein the output end of the bevel gear driving box (5) is rotatably provided with a rotating wheel (6), two ends of the butterfly valve main body (1) are fixedly connected with flanges (2), and a plurality of mounting holes (3) distributed in a ring shape are formed in the flanges (2).
  4. 4. The full-metal hard sealing butterfly valve of claim 1, wherein the outer wall of the rotating rod (7) is sleeved with a first elastic sheet (8) and a second elastic sheet (9), and the first elastic sheet (8) and the second elastic sheet (9) are mutually abutted.
  5. 5. The full-metal hard sealing butterfly valve of claim 4 wherein the first elastic piece (8) and the second elastic piece (9) are arc-shaped elastic pieces, and the first elastic piece (8) and the second elastic piece (9) are arranged on the inner wall of the fixed seat (4).

Description

All-metal hard seal butterfly valve Technical Field The invention relates to the technical field of butterfly valves, in particular to an all-metal hard sealing butterfly valve. Background The all-metal sealing butterfly valve is a butterfly valve which is made of metal materials (or a small amount of hard alloy coating is added) on the sealing surfaces of a valve seat and a butterfly plate, and the butterfly valve is sealed by means of precise fit and elastic deformation between metal parts. All-metal sealing butterfly valves existing in the market at present are usually switched by adopting a mode of rotating up and down double shafts to carry out valve flaps, and after a period of use, the rotating connection part between a connecting shaft and the butterfly valve is lack of lubricating oil, regular maintenance and lubricating operation are needed to carry out, so that the butterfly valve can be kept smooth in use, but due to the arrangement of the up and down double shafts, the lubricating operation is complex and the butterfly valve needs to be disassembled, part of the butterfly valve is provided with a lubricating oil port, but oil block blockage is easy to occur under long-term use, and therefore, the butterfly valve is needed to solve the problem. Disclosure of Invention In order to achieve the aim, the invention provides the technical scheme that the all-metal hard sealing butterfly valve comprises a butterfly valve body and a fixed frame fixedly arranged on the butterfly valve body, wherein the outer wall of the butterfly valve body is fixedly connected with a fixed seat, a bevel gear driving box is fixedly arranged on the fixed seat, the output end of the bevel gear driving box is fixedly connected with a rotating rod, a valve clack is fixedly connected on the rotating rod, the outer contour of the valve clack is matched with the inner contour of the butterfly valve body, one end of the rotating rod is fixedly connected with a rotating frame, the rotating frame is rotatably arranged on the inner wall of the fixed frame, a piston is slidably arranged on the inner wall of the rotating frame, the outer wall of the piston is fixedly connected with a second sleeve, a first sleeve is sleeved on the outer wall of the second sleeve, a vortex fan is fixedly connected on the first sleeve, and the first sleeve is rotatably arranged on the inner wall of the rotating frame. Preferably, one end fixedly connected with conveying screw of vortex fan, set up a plurality of second on the rotation frame and go out the liquid hole, set up flutedly on the dwang, set up logical groove on the recess, the one end of rotation frame is connected with the inner wall rotation of logical groove, a plurality of third that go out the liquid hole has been seted up to the inner wall of logical groove, a plurality of bearings are installed in the inner wall rotation of butterfly valve main part, the bearing housing is established and is installed on the dwang. Preferably, the outer wall of the second sleeve is rotatably provided with a second ball, the inner wall of the first sleeve is provided with a spiral track groove, and the second ball is slidably arranged on the inner wall of the spiral track groove. Preferably, the second sleeve is provided with a plurality of first liquid outlet holes, the second sleeve is hollow, the piston is provided with a through hole, and the through hole is communicated with the inner wall of the second sleeve. Preferably, the outer wall of the piston is fixedly connected with an infusion tube, the infusion tube is connected to the inner wall of the fixed frame in a sliding manner, and a sealing plug is arranged at one end of the infusion tube in a sliding manner. Preferably, the outer wall fixedly connected with of piston is supported the contact rod, the one end rotation of supporting the contact rod is installed first ball, the inner wall fixedly connected with of fixed frame a plurality of annular distributed toper lugs. Preferably, the outer wall of the piston is fixedly connected with a reset spring, and one end of the reset spring is fixedly connected with the inner wall of the rotating frame. Preferably, the output end of the bevel gear driving box is rotatably provided with a rotating wheel, two ends of the butterfly valve main body are fixedly connected with flanges, and a plurality of mounting holes which are distributed in a ring shape are formed in the flanges. Preferably, the outer wall of the rotating rod is sleeved with a first elastic sheet and a second elastic sheet, and the first elastic sheet and the second elastic sheet are mutually abutted. Preferably, the first elastic piece and the second elastic piece are both arranged as arc-shaped elastic pieces, and the first elastic piece and the second elastic piece are arranged on the inner wall of the fixing seat. Compared with the prior art, the invention has the beneficial effects that: 1. According to the invention, when the pist