Butterfly valve connecting structure capable of being quickly disassembled and assembled

Abstract

The utility model relates to the technical field of fluid control, in particular to a butterfly valve connecting structure capable of being quickly disassembled and assembled. The utility model provides a butterfly valve connecting structure capable of being quickly disassembled and assembled, which comprises a mounting pipe, a butterfly valve, a two-way cylinder, an outer-layer extension pipe, a connecting block, an inner-layer extension pipe, pipe threads and a protection mechanism, the upper part of the mounting pipe is rotatably connected with the butterfly valve, and the upper side of the rear part of the mounting pipe is fixedly connected with the two-way cylinder; two piston rods of the two-way air cylinder are fixedly connected with outer-layer extension pipes, the two outer-layer extension pipes are arranged on the two sides of the exterior of the mounting pipe in a sliding and sleeving mode respectively, the inner side walls of the outer-layer extension pipes are fixedly connected with connecting blocks in an annular array, inner-layer extension pipes are fixedly connected between the opposite sides of the connecting blocks, and pipe threads are arranged on the outer side walls of the inner-layer extension pipes. According to the utility model, the outer-layer extension pipe and the inner-layer extension pipe are driven by the two-way cylinder, and the quick pipe thread connection mode is matched, so that compared with the traditional flange bolt connection mode, the mounting and dismounting time is shortened.

Description

Technical Field

[0001] This utility model relates to the field of fluid control technology, and in particular to a butterfly valve connection structure that can be quickly disassembled and assembled. Background Technology

[0002] In industrial pipeline systems, butterfly valves are a commonly used fluid control device, widely used in water treatment, petrochemical, power, metallurgy and other fields. With their advantages such as simple structure, rapid opening and closing and low flow resistance, butterfly valves have become an indispensable part of pipeline systems. In actual use, butterfly valves may need to be maintained, repaired or replaced regularly, which involves the disassembly and assembly of the connection structure between the butterfly valve and the pipeline.

[0003] Traditional butterfly valve connection structures typically employ flange or wafer-type connections. While these methods are simple in structure and widely used, they still have several shortcomings in practical applications: flange connections require bolt tightening, making installation and disassembly cumbersome and time-consuming, especially in space-constrained or frequently maintained environments, where operation is extremely inconvenient; while wafer-type connections, although compact in structure, have strict requirements for pipe spacing and high installation precision. Slight carelessness can lead to poor sealing or uneven valve stress, affecting service life. With the increasing demand for modular industrial equipment and rapid maintenance, traditional butterfly valve connection structures can no longer meet the requirements of efficient assembly and disassembly, reliable sealing, and adaptability to complex operating conditions.

[0004] Therefore, a butterfly valve connection structure that can be quickly disassembled and assembled is particularly needed to solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of traditional butterfly valve connection structures, such as cumbersome installation and disassembly, high requirements for pipeline spacing, and difficulty in meeting the needs of rapid maintenance and reliable sealing, this utility model provides a butterfly valve connection structure that can be quickly disassembled and assembled.

[0006] This utility model is achieved through the following technical means: a butterfly valve connection structure that can be quickly disassembled and assembled, including an installation tube, a disc valve, a two-way cylinder, an outer extension tube, a connecting block, an inner extension tube, a pipe thread, and a protection mechanism. The disc valve is rotatably connected to the upper part of the installation tube, and the two-way cylinder is fixedly connected to the upper rear part of the installation tube. The two piston rods of the two-way cylinder are each fixedly connected to an outer extension tube. The two outer extension tubes are slidably sleeved on both sides outside the installation tube. A ring array of connecting blocks is fixedly connected to the inner side wall of the outer extension tube. An inner extension tube is fixedly connected between the opposite sides of the connecting blocks. The outer side wall of the inner extension tube is provided with a pipe thread, and a protection mechanism is provided above the disc valve.

[0007] As an improvement to the above solution, the protection mechanism includes a fixed frame, a glass cover, and torsion springs. The fixed frame is fixedly connected to the upper rear part of the mounting tube. The fixed frame is slidably connected to the two piston rods of the bidirectional cylinder. The glass cover is rotatably connected to the fixed frame. Symmetrical torsion springs connect the glass cover and the fixed frame.

[0008] As an improvement to the above solution, it also includes handles, with symmetrical handles fixed to the front side of the mounting tube.

[0009] As an improvement to the above solution, a sealing ring is also included, with a sealing ring provided between the mounting tube and the outer extension tube.

[0010] As an improvement to the above solution, it also includes clamps and bolts. The outer extension tube is fitted with clamps, and the two ends of the clamps are connected with symmetrical bolts.

[0011] As an improvement to the above solution, the disc valve is equipped with an anti-slip sleeve.

[0012] As can be seen from the above description of the structure of this utility model, the design starting point, concept and advantages of this utility model are: 1. This utility model uses a bidirectional cylinder to drive the outer extension tube and the inner extension tube, and with the quick connection method of pipe thread, it shortens the installation and disassembly time compared with the traditional flange bolt connection method.

[0013] 2. This utility model features a user-friendly handle design that facilitates handling and positioning installation, and an automatic torsion spring closing design that prevents operators from forgetting to close the glass cover.

[0014] 3. This utility model uses a clamp-assisted locking design to ensure connection strength while avoiding the cumbersome process of relying entirely on pipe thread tightening. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the mounting tube, handle, and fixing bracket of this utility model.

[0017] Figure 3 This is a three-dimensional sectional view of the outer extension tube and sealing ring of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the components of this utility model, including the bidirectional cylinder, the outer extension tube, and the connecting block.

[0019] The markings in the diagram are: 1-installation tube, 2-handle, 3-fixed bracket, 4-glass cover, 5-torsion spring, 6-disc valve, 7-two-way cylinder, 8-outer extension tube, 9-connecting block, 10-inner extension tube, 11-pipe thread, 12-sealing ring, 13-clamp, 14-bolt. Detailed Implementation

[0020] The preferred technical solution of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Example: A butterfly valve connection structure that allows for quick assembly and disassembly, such as... Figures 1-4 As shown, it includes an installation tube 1, a handle 2, a disc valve 6, a two-way cylinder 7, an outer extension tube 8, a connecting block 9, an inner extension tube 10, a pipe thread 11, a sealing ring 12, a clamp 13, a bolt 14, and a protective mechanism. Symmetrical handles 2 are welded to the front of the installation tube 1. The disc valve 6 is rotatably connected to the upper part of the installation tube 1, and an anti-slip sleeve is adhered to the disc valve 6. The two-way cylinder 7 is fixedly connected to the upper rear part of the installation tube 1, and the outer extension tube 8 is fixedly connected to both piston rods of the two-way cylinder 7. Two outer extension tubes 8 are slidably sleeved on both sides of the outside of the mounting tube 1. The inner wall of the outer extension tube 8 is welded with a ring array of connecting blocks 9. The inner extension tube 10 is welded between the opposite sides of the connecting blocks 9. The outer wall of the inner extension tube 10 is provided with pipe threads 11. A sealing ring 12 is bonded between the mounting tube 1 and the outer extension tube 8. The outer extension tube 8 is fitted with a clamp 13. The two ends of the clamp 13 are connected with threaded bolts 14 that are symmetrical on the left and right. A protective mechanism is provided above the disc valve 6.

[0022] like Figures 1-3 As shown, the protective mechanism includes a fixed frame 3, a glass cover 4, and a torsion spring 5. The fixed frame 3 is bolted to the upper rear side of the mounting tube 1. The fixed frame 3 is slidably connected to the two piston rods of the bidirectional cylinder 7. The glass cover 4 is rotatably connected to the fixed frame 3. The glass cover 4 and the fixed frame 3 are connected by left and right symmetrical torsion springs 5.

[0023] Using handle 2, move the installation pipe 1 to the desired position. During installation, activate the double-acting cylinder 7. The piston rod of the double-acting cylinder 7 pushes the outer extension pipe 8 outward, and the connecting block 9 drives the inner extension pipe 10 to extend synchronously, exposing the pipe thread 11 of the inner extension pipe 10, i.e., the pipe thread 11 is removed from the enclosure of the installation pipe 1. Then, screw the outer pipe and the inner extension pipe 10 together to achieve a preliminary connection. The sealing ring 12 ensures the seal between the installation pipe 1 and the outer extension pipe 8. Then, use the clamp 13 to fit the outer extension pipe 8 and lock it with the bolt 14 to enhance the connection stability. When needed... To control the disc valve 6, manually push the glass cover 4 upwards. The glass cover 4 rotates on the fixing bracket 3. Use your other hand to rotate the disc valve 6. When no control is needed, release the glass cover 4. The glass cover 4 will automatically close under the action of the torsion spring 5 to prevent external impurities from entering and to facilitate observation of the status of the disc valve 6. When disassembling, first loosen the bolt 14 on the clamp 13 to release the constraint of the outer extension tube 8. Unscrew the outer pipe from the inner extension tube 10 and drive the bidirectional cylinder 7 in the reverse direction. This will cause the piston rod of the bidirectional cylinder 7 to retract the outer extension tube 8 and the inner extension tube 10, thus hiding the pipe thread 11.

[0024] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A butterfly valve connection structure that allows for quick assembly and disassembly, characterized in that: The utility model relates to a kind of installation pipes (1), disc valve (6), bidirectional cylinder (7), outer layer extension pipe (8), connecting block (9), inner layer extension pipe (10), pipe thread (11) and protection mechanism include, disc valve (6) is rotatably connected on installation pipe (1) upper portion, bidirectional cylinder (7) is fixedly connected on installation pipe (1) rear upper side, two piston rods of bidirectional cylinder (7) are both fixedly connected with outer layer extension pipe (8), two outer layer extension pipes (8) are respectively slidably set in the both sides of installation pipe (1) outside, annular array connecting block (9) is fixedly connected on the inner side wall of outer layer extension pipe (8), inner layer extension pipe (10) is fixedly connected between the opposite side of connecting block (9), pipe thread (11) is arranged on the outer side wall of inner layer extension pipe (10), protection mechanism is arranged above disc valve (6).

2. The quick connect / disconnect butterfly valve connection of claim 1, wherein: Protection mechanism includes fixed frame (3), glass cover (4) and torsion spring (5), installation pipe (1) rear upper side is fixedly connected with fixed frame (3), fixed frame (3) is slidably connected on the two piston rods of bidirectional cylinder (7) with sleeve, glass cover (4) is rotatably connected on fixed frame (3), and left-right symmetrical torsion spring (5) is connected between glass cover (4) and fixed frame (3).

3. The quick connect / disconnect butterfly valve connection of claim 2, wherein: It further includes handle (2), and left-right symmetrical handle (2) is fixedly connected on the front side of installation pipe (1).

4. The quick connect / disconnect butterfly valve coupling structure of claim 3, wherein: It further includes sealing ring (12), and sealing ring (12) is arranged between installation pipe (1) and outer layer extension pipe (8).

5. The quick connect / disconnect butterfly valve coupling structure of claim 4, wherein: It further includes clamp (13) and bolt (14), outer layer extension pipe (8) is sleeved with clamp (13), and left-right symmetrical bolt (14) is threadedly connected at the connecting place of both ends of clamp (13).

6. The quick connect / disconnect butterfly valve coupling structure of claim 5, wherein: Anti-skid sleeve is arranged on disc valve (6).

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