Flange butterfly valve convenient to disassemble

Abstract

The flange butterfly valve convenient to disassemble comprises a frame body, a valve body is arranged on the inner wall of the frame body, first flange plates are fixedly connected to the two sides of the valve body respectively, a second flange plate is arranged on one side of each first flange plate, and one side of each second flange plate is communicated with a connecting pipe. A rotating shaft is arranged on the front side of the bottom of an inner cavity of the frame body, a gear is fixedly connected to the rear side of the rotating shaft, toothed plates are meshed with the top and the bottom of the gear, a vertical rod is fixedly connected to one side of each toothed plate, and a connecting ring is fixedly connected to one side of each vertical rod. When the valve body needs to be disassembled, the vertical column is pulled, the vertical column drives the connecting pin to move, and after the connecting pin is far away from the bolt, the rotating shaft can be rotated, the rotating shaft drives the gear to rotate, the gear drives the toothed plate to move, the toothed plate drives the vertical rod to move, the vertical rod drives the connecting ring to move, and the connecting ring drives the bolt to move; and the valve body can be taken down, so that the disassembly work is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to a flange butterfly valve which is easy to disassemble. Background Art

[0002] The butterfly valve has a simple structure, small size, and light weight. It is composed of only a few parts and can be quickly opened and closed by rotating 90°. It is easy to operate. At the same time, the valve has good fluid control characteristics. The butterfly plate of the butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis. The rotation angle is between 0° and 90°. When it rotates to 90°, the valve is fully open.

[0003] Existing butterfly valves are all installed by bolts, and the bolts are prone to rust after working for a long time, making it difficult to remove the bolts. In addition, a wrench is required during removal, which makes the removal very cumbersome and cannot meet the use requirements. For this reason, we propose a flange butterfly valve that is easy to disassemble. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a flange butterfly valve that is easy to disassemble, which has the advantage of being easy to disassemble and solves the problem that the existing butterfly valves are all installed by bolts, and the bolts are prone to rust after long-term work, making the bolts difficult to disassemble, and a wrench is needed during disassembly, making the disassembly very cumbersome and unable to meet the use requirements.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flange butterfly valve that is easy to disassemble, comprising a frame, a valve body is provided on the inner wall of the frame, first flanges are fixedly connected to both sides of the valve body, a second flange is provided on one side of the first flange, a connecting pipe is connected to one side of the second flange, a rotating shaft is provided on the front side of the bottom of the inner cavity of the frame, a gear is fixedly connected to the rear side of the rotating shaft, the top and bottom of the gear are meshed with toothed plates, a vertical rod is fixedly connected to one side of the toothed plate, a connecting ring is fixedly connected to one side of the vertical rod, a latch is fixedly connected to one side of the connecting ring, one side of the latch passes through the second flange and the first flange in sequence and extends to the inner side of the first flange, a shell is fixedly connected to the top of the frame, a fixing plate is fixedly connected to the central axis of the inner wall of the shell, a spring is fixedly connected to the front and back of the fixing plate, a connecting rod is fixedly connected to one side of the spring, a vertical column is fixedly connected to one side of the connecting rod, a connecting pin is fixedly connected to one side of the vertical column, and one side of the connecting pin is plugged with the latch.

[0006] Preferably, a rectangular plate is movably connected to the surface of the rotating shaft via a bearing, and the bottom of the rectangular plate is fixedly connected to the frame.

[0007] Preferably, a rectangular rod is slidably connected to the inner cavity of the vertical rod, and one side of the rectangular rod is fixedly connected to the frame.

[0008] Preferably, the inner cavity of the connecting rod is slidably connected to a sliding rod, and one side of the sliding rod is fixedly connected to the shell.

[0009] Preferably, the front side and the rear side of the inner cavity of the shell are both fixedly connected with a second magnetic block, one side of the second magnetic block is provided with a first magnetic block, and one side of the first magnetic block is fixedly connected to the connecting rod.

[0010] Preferably, a rectangular groove is provided at the bottom of the shell, and the outer surface of the connecting pipe is fixedly connected to the frame.

[0011] Compared with the prior art, the utility model provides a flange butterfly valve that is easy to disassemble and has the following beneficial effects:

[0012] 1. When the valve body of the utility model needs to be disassembled, the vertical column is pulled, and the vertical column drives the connecting pin to move. After the connecting pin is away from the latch, the rotating shaft can be rotated, the rotating shaft drives the gear to rotate, the gear drives the toothed plate to move, the toothed plate drives the vertical rod to move, the vertical rod drives the connecting ring to move, and the connecting ring drives the latch to move. After the latch is away from the first flange, the valve body can be removed, thereby completing the disassembly work.

[0013] 2. The utility model stabilizes the operation of the rotating shaft by setting bearings and rectangular plates, thereby making the gear stable during operation. The utility model stabilizes the operation of the vertical rod by setting a rectangular rod, and provides balanced support for the vertical rod. The utility model conveniently generates repulsive force by setting a first magnetic block and a second magnetic block, thereby generating thrust on the connecting rod, thereby making the connecting pin stable during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the utility model in a top view when the shell is in a cut-away state.

[0017] In the figure: 1, frame; 2, valve body; 3, first flange; 4, second flange; 5, connecting pipe; 6, rotating shaft; 7, rectangular plate; 8, gear; 9, tooth plate; 10, vertical rod; 11, connecting ring; 12, latch; 13, shell; 14, fixing plate; 15, spring; 16, connecting rod; 17, vertical column; 18, connecting pin; 19, first magnetic block; 20, second magnetic block. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0019] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] See also Figure 1-3 A flange butterfly valve that is easy to disassemble comprises a frame 1, a valve body 2 is arranged on the inner wall of the frame 1, first flanges 3 are fixedly connected to both sides of the valve body 2, a second flange 4 is arranged on one side of the first flange 3, a connecting pipe 5 is connected to one side of the second flange 4, a rotating shaft 6 is arranged on the front side of the bottom of the inner cavity of the frame 1, a gear 8 is fixedly connected to the rear side of the rotating shaft 6, a tooth plate 9 is meshed with the top and bottom of the gear 8, a vertical rod 10 is fixedly connected to one side of the tooth plate 9, a connecting ring 11 is fixedly connected to one side of the vertical rod 10, and a connecting ring 11 is fixedly connected to one side of the connecting ring 11 A latch 12 is fixedly connected to the side, one side of the latch 12 passes through the second flange 4 and the first flange 3 in sequence and extends to the inner side of the first flange 3, the top of the frame 1 is fixedly connected to a shell 13, a fixing plate 14 is fixedly connected to the central axis of the inner wall of the shell 13, the front and back sides of the fixing plate 14 are fixedly connected to springs 15, one side of the spring 15 is fixedly connected to a connecting rod 16, one side of the connecting rod 16 is fixedly connected to a vertical column 17, one side of the vertical column 17 is fixedly connected to a connecting pin 18, and one side of the connecting pin 18 is plugged into the latch 12.

[0022] Through the above technical solution: when the valve body 2 needs to be disassembled, pull the vertical column 17, the vertical column 17 drives the connecting pin 18 to move, after the connecting pin 18 is away from the latch 12, the rotating shaft 6 can be rotated, the rotating shaft 6 drives the gear 8 to rotate, the gear 8 drives the tooth plate 9 to move, the tooth plate 9 drives the vertical rod 10 to move, the vertical rod 10 drives the connecting ring 11 to move, the connecting ring 11 drives the latch 12 to move, after the latch 12 is away from the first flange 3, the valve body 2 can be removed, thereby completing the disassembly work.

[0023] A rectangular plate 7 is movably connected to the surface of the rotating shaft 6 via a bearing, and the bottom of the rectangular plate 7 is fixedly connected to the frame 1 .

[0024] Through the above technical solution: by providing the bearing and the rectangular plate 7, the operation of the rotating shaft 6 is stabilized, thereby making the gear 8 stable during operation.

[0025] A rectangular rod is slidably connected to the inner cavity of the vertical rod 10 , and one side of the rectangular rod is fixedly connected to the frame 1 .

[0026] Through the above technical solution: by setting the rectangular rod, the operation of the vertical rod 10 is stabilized and the vertical rod 10 is supported in a balanced manner.

[0027] The inner cavity of the connecting rod 16 is slidably connected with a sliding rod, and one side of the sliding rod is fixedly connected to the housing 13 .

[0028] The front and rear sides of the inner cavity of the shell 13 are both fixedly connected with the second magnetic block 20 . A first magnetic block 19 is disposed on one side of the second magnetic block 20 . One side of the first magnetic block 19 is fixedly connected to the connecting rod 16 .

[0029] Through the above technical solution: by setting the first magnetic block 19 and the second magnetic block 20, it is convenient to generate repulsive force, which can generate thrust on the connecting rod 16, thereby making the connecting pin 18 stable during operation.

[0030] A rectangular groove is formed at the bottom of the shell 13 , and the outer surface of the connecting pipe 5 is fixedly connected to the frame 1 .

[0031] The working principle of the utility model is: when the valve body 2 needs to be disassembled, the vertical column 17 is pulled, and the vertical column 17 drives the connecting pin 18 to move. After the connecting pin 18 is away from the latch 12, the rotating shaft 6 can be rotated, the rotating shaft 6 drives the gear 8 to rotate, the gear 8 drives the toothed plate 9 to move, the toothed plate 9 drives the vertical rod 10 to move, the vertical rod 10 drives the connecting ring 11 to move, and the connecting ring 11 drives the latch 12 to move. After the latch 12 is away from the first flange 3, the valve body 2 can be removed, thereby completing the disassembly work.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flange butterfly valve that is easy to disassemble, comprising a frame (1), characterized in that: The inner wall of the frame (1) is provided with a valve body (2), both sides of the valve body (2) are fixedly connected with a first flange (3), one side of the first flange (3) is provided with a second flange (4), one side of the second flange (4) is connected with a connecting pipe (5), the front side of the bottom of the inner cavity of the frame (1) is provided with a rotating shaft (6), the rear side of the rotating shaft (6) is fixedly connected with a gear (8), the top and bottom of the gear (8) are meshed with a toothed plate (9), one side of the toothed plate (9) is fixedly connected with a vertical rod (10), one side of the vertical rod (10) is fixedly connected with a connecting ring (11), and one side of the connecting ring (11) is fixedly connected with a latch. (12), one side of the latch (12) passes through the second flange (4) and the first flange (3) in sequence and extends to the inner side of the first flange (3), the top of the frame (1) is fixedly connected to a shell (13), the center axis of the inner wall of the shell (13) is fixedly connected to a fixing plate (14), the front and back sides of the fixing plate (14) are fixedly connected to a spring (15), one side of the spring (15) is fixedly connected to a connecting rod (16), one side of the connecting rod (16) is fixedly connected to a vertical column (17), one side of the vertical column (17) is fixedly connected to a connecting pin (18), and one side of the connecting pin (18) is plugged into the latch (12).

2. The flange butterfly valve that is easy to disassemble according to claim 1 is characterized in that: The surface of the rotating shaft (6) is movably connected to a rectangular plate (7) via a bearing, and the bottom of the rectangular plate (7) is fixedly connected to the frame (1).

3. The flange butterfly valve that is easy to disassemble according to claim 1 is characterized in that: The inner cavity of the vertical rod (10) is slidably connected to a rectangular rod, and one side of the rectangular rod is fixedly connected to the frame (1).

4. The easily disassembled flange butterfly valve according to claim 1, characterized in that: The inner cavity of the connecting rod (16) is slidably connected to a sliding rod, and one side of the sliding rod is fixedly connected to the housing (13).

5. The easily disassembled flange butterfly valve according to claim 1, characterized in that: The front and rear sides of the inner cavity of the shell (13) are both fixedly connected with a second magnetic block (20), one side of the second magnetic block (20) is provided with a first magnetic block (19), and one side of the first magnetic block (19) is fixedly connected to a connecting rod (16).

6. The easily disassembled flange butterfly valve according to claim 1, characterized in that: A rectangular groove is provided at the bottom of the shell (13), and the outer surface of the connecting pipe (5) is fixedly connected to the frame (1).

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