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CN-224214799-U - Large-caliber butterfly valve

CN224214799UCN 224214799 UCN224214799 UCN 224214799UCN-224214799-U

Abstract

The utility model discloses a large-caliber butterfly valve, which comprises a butterfly valve, wherein fixed pipes are arranged on two sides of the butterfly valve, outer connecting pipes are arranged on the inner sides of the fixed pipes, control sleeves are arranged on the outer sides of the fixed pipes, circular plates are arranged on the outer sides of the fixed pipes, arc-shaped grooves and round holes are formed in the circular plates, positioning sleeves are sleeved on the outer sides of the fixed pipes, moving rods are arranged on one sides of the positioning sleeves, moving plates are arranged on one sides of the circular plates, connecting blocks are arranged on the outer sides of the fixed pipes, a linkage spring is arranged on the outer sides of the fixed pipes, movable grooves are formed in the inner sides of the control sleeves, movable plates are arranged in the movable grooves, positioning frames are arranged on one sides of the control sleeves, positioning rods are arranged in the positioning frames, positioning springs are sleeved on the outer sides of the positioning rods, positioning plates are arranged on the other ends of the positioning rods, inserting grooves are formed in the outer sides of the outer connecting pipes, rubber sleeves are arranged in the fixed pipes, and sliding grooves are formed in the outer sides of the fixed pipes.

Inventors

  • Wu Ruijian

Assignees

  • 川化机阀门科技有限公司

Dates

Publication Date
20260508
Application Date
20250627

Claims (8)

  1. 1. The large-caliber butterfly valve comprises a butterfly valve (1) and is characterized in that two sides of the butterfly valve (1) are provided with a fixed pipe (2), the inner side of the fixed pipe (2) is provided with an outer connecting pipe (3), the outer side of the fixed pipe (2) is rotationally provided with a control sleeve (4), the outer side of the fixed pipe (2) is rotationally provided with a circular plate (5), an arc-shaped groove (6) and a circular hole (7) are formed in the circular plate (5), the circular hole (7) is formed in one end of the arc-shaped groove (6), the outer side of the fixed pipe (2) is sleeved with a positioning sleeve (8), one side of the positioning sleeve (8) is provided with a movable rod (9), the movable rod (9) is provided with a movable plate (10), one side of the circular plate (5) is provided with a linkage block (11), the outer side of the fixed pipe (2) is provided with a connecting block (12), the outer side of the fixed pipe (2) is provided with a linkage spring (13), the inner side of the control sleeve (4) is radially provided with a movable groove (14), the movable groove (14) is provided with a movable plate (15), one side of the control sleeve (4) is provided with a positioning frame (16), the positioning spring (17) is arranged in the positioning frame (16), the outer side of the positioning rod (17) is sleeved with a positioning spring (18), the other end (17) is provided with a positioning plate (17), one side of the positioning spring (17) is provided with a positioning spring (17), and the other end (17) and the other side is provided with a positioning spring (20), a plug rod (21) is arranged on one side of the movable plate (15), a chamfer structural design is adopted on one side of the inner wall of the plug groove (20) and one end of the plug rod (21), a rubber sleeve (22) is arranged on the inner side of the fixed pipe (2), a sliding groove (23) is formed in the outer side of the fixed pipe (2), and positioning grooves (24) are formed in two ends of the sliding groove (23).
  2. 2. The large-caliber butterfly valve according to claim 1, wherein the outer sides of the control sleeve (4) and the circular plate (5) are fixedly connected with each other and provided with an anti-slip strip (25).
  3. 3. The large-caliber butterfly valve according to claim 1, wherein a moving spring (26) is movably sleeved on the outer side of the moving rod (9), one end of the moving spring (26) is connected to one side of the positioning sleeve (8), and the other end of the moving spring (26) is abutted to one side of the circular plate (5).
  4. 4. The large-caliber butterfly valve according to claim 3, wherein a sliding groove (27) is formed in the outer side of the fixed pipe (2), a sliding block (28) is formed in the sliding groove (27), and the sliding block (28) is fixedly arranged on the inner wall of the positioning sleeve (8).
  5. 5. The large-caliber butterfly valve as claimed in claim 4, wherein a linkage hole (29) is formed in the connecting block (12), a linkage rod (30) is fixedly connected to one side of the linkage block (11), and one end of the linkage rod (30) slides into the linkage hole (29).
  6. 6. The large-caliber butterfly valve as claimed in any one of claims 1-5, wherein a plurality of rubber rings (31) are fixedly arranged on the outer side of the outer joint pipe (3), a plurality of grooves (32) are formed in the inner side of the fixed joint pipe (2), and the rubber rings (31) are clamped into the grooves (32).
  7. 7. The large-caliber butterfly valve as claimed in claim 5, wherein the connection part of the positioning groove (24) and the sliding groove (23) is designed in a round angle structure, and one end of the positioning rod (17) is designed in a round angle structure.
  8. 8. The large diameter butterfly valve of claim 7 wherein the sliding groove (23) is shallower than the positioning groove (24).

Description

Large-caliber butterfly valve Technical Field The utility model relates to the technical field of butterfly valves, in particular to a large-caliber butterfly valve. Background With the rapid development of the industrial field, the large-caliber butterfly valve is used as a key component in a fluid control system, and the installation connection efficiency and stability of the large-caliber butterfly valve directly influence the operation safety and the operation efficiency of the whole pipe network system, however, the conventional large-caliber butterfly valve technology has a plurality of technical problems to be solved in the aspect of connection with an external pipeline, and the high-efficiency operation of the industrial production and the pipeline system is severely restricted. Firstly, in the application of the traditional large-caliber butterfly valve, the butterfly valve is connected with an external pipeline by adopting the traditional connection modes such as flange connection, threaded connection or welding fixation, and the like, and the connection modes ensure the tightness and stability of the connection to some extent, but have obvious technical defects that the connection operation flow is complicated and complicated, a plurality of professional tools such as a spanner, a torque spanner, a hydraulic tool and the like are usually required to be used for auxiliary operation, quick and convenient connection and disconnection are difficult to realize, the connection points are more, the connection process is long in time consumption, and particularly the large-caliber butterfly valve is particularly outstanding when the pipeline system is required to be frequently maintained, overhauled or emergency, so that the working efficiency is reduced, the system shutdown time is prolonged, and the production continuity and emergency response capability are seriously influenced. Secondly, although partial improved large-caliber butterfly valves are in the market, the convenient connection and disconnection functions between the butterfly valves and the external pipelines are realized on the surface through the matching of parts, the quick connection structures have obvious defects in technical realization, the typical problems comprise that the connection mechanisms lack of effective multiple safety and anti-loosening designs, the design defects lead to the fact that in practical application, especially in the working condition environment with high pressure or strong vibration, the connection structures between the butterfly valves and the external pipelines are extremely easy to be influenced by various dynamic factors such as internal pressure fluctuation, water hammer effect, external vibration and the like of pipelines, the connection parts are gradually loosened, the sealing performance is reduced, even complete connection failure can be caused in serious cases, and the even dangerous situation that the connection loosening or failure is always gradually generated under the condition that operators are unaware, once the connection mechanisms are suddenly disconnected in the operation process of the system, the problems of insufficient connection stability seriously influence the reliability and the safety of the large-caliber butterfly valves in the key industrial application, and finally limit the operation efficiency and the whole fluid control system. Disclosure of utility model (One) solving the technical problems Aiming at the problems in the prior art, the utility model provides a large-caliber butterfly valve to solve the technical problems in the background art. (II) technical scheme In order to achieve the above purpose, the large-caliber butterfly valve comprises a butterfly valve, wherein fixed pipes are fixedly connected to two sides of the butterfly valve, an outer connecting pipe is detachably arranged on the inner side of the fixed pipe, a control sleeve is rotatably arranged on the outer side of the fixed pipe, a circular plate is rotatably arranged on the outer side of the fixed pipe, an arc-shaped groove and a circular hole are formed in the circular plate, the circular hole is formed in one end of the arc-shaped groove, a positioning sleeve is arranged on the outer side of the fixed pipe in a sliding mode, a movable rod is fixedly connected to one side of the positioning sleeve, a movable plate is fixedly arranged on the movable rod, two positions are arranged on the movable plate, a linkage block is fixedly connected to one side of the circular plate, a connecting block is fixedly arranged on the outer side of the fixed pipe, a movable spring is arranged on the outer side of the fixed pipe, two ends of the linkage spring are respectively connected with the connecting block, a movable groove is formed in a variable diameter mode in the inner side of the control sleeve, a positioning rod is movably arranged in the movable groove, a positioning spring is arranged on one side of