Butterfly valve flow adjusting device

Abstract

The utility model relates to the technical field of butterfly valve flow regulation, in particular to a butterfly valve flow regulation device which comprises a valve body and transverse pipes, the two sides of the valve body are fixedly communicated with the transverse pipes, flanges are fixedly connected to the tail ends of the two transverse pipes, a shell is fixedly connected to the upper end of the outer wall of the valve body, and a flow regulation structure is arranged on the right side of the shell. A plurality of through holes are machined in the inner wall of the flange. According to the butterfly valve flow adjusting device, through the flow adjusting structure, the handle is rotated to drive the first bevel gear to rotate in the shell through the bearing, the handle is further rotated to enable the side wall of the butterfly plate to abut against the rubber block to generate pre-tightening force, and in the handle rotating process, a worker can know the angle of the butterfly plate by observing the position, corresponding to the dial, of the pointer; meanwhile, the handle is reversely rotated to enable the shell and the side wall of the butterfly plate to abut against the valve body and the rubber block correspondingly, the outer wall and the side wall of the butterfly plate are used for blocking and sealing the water flow at the same time, the blocking and sealing performance is effectively improved, and then the practicability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to butterfly valve flow regulation technical field, concretely is a butterfly valve flow regulating device. BACKGROUND

[0002] Butterfly valve is suitable for a variety of pipelines, not only portable, and provide reasonable flow control in compact design, suitable for low pressure and low temperature application, butterfly disc occupies very small space, and provides sufficient strength for most pump systems, butterfly valve is mainly through the rotation angle of internal valve disc realizes the regulation of flow.

[0003] For example, the announcement number is "CN221762628U" a butterfly valve flow regulating device, the identification of pointer is convenient for adjusting the flow size, improves the sealing performance between valve disc and cavity wall in butterfly valve through the adjustment of ring cavity rubber ring, is more labor-saving when rotating.But when the water flow needs to be blocked and sealed, the valve disc cavity disc can only seal the water flow through the outer wall single side, and the air sealing mode is relatively single and the flow blocking sealing performance is poor, so that the practicability is low. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the problem that the valve disc cavity disc can only seal the water flow through the outer wall single side, the air sealing mode is relatively single and the sealing performance is poor, so that the practicability is low, and provides a butterfly valve flow regulating device.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] Design a butterfly valve flow regulating device, including valve body and cross pipe, the valve body both sides with cross pipe fixed communication, two The cross pipe end fixedly connected with flange, the valve body outer wall upper end fixedly connected with shell, the shell right side is equipped with flow regulating structure, the flange inner wall is processed with a plurality of through -holes.

[0007] Preferably, the flow regulating structure includes handle, the handle rotating part fixedly connected with first bevel gear, the first bevel gear outer wall is connected with second bevel gear meshing, the second bevel gear rotating shaft end fixedly connected with pointer, the shell outer wall upper end fixedly connected with dial, the second bevel gear rotating part fixedly connected with butterfly plate, the valve body inner wall fixedly connected with rubber block, the butterfly plate outer wall and rubber block are tightly resisted, the butterfly plate outer wall and valve body are sealedly connected.

[0008] Preferably, the first bevel gear rotating shaft is connected with shell rotation through bearing.

[0009] Preferably, the second bevel gear rotating shaft is connected with shell rotation through bearing.

[0010] Preferably, the butterfly plate rotating shaft is rotatably connected to the valve body via a sealed bearing.

[0011] The butterfly valve flow regulating device proposed in this utility model has the following advantages: Through the flow regulating structure, rotating the handle drives the first bevel gear to rotate within the housing via a bearing. The rotation of the first bevel gear drives the second bevel gear to rotate within the housing via a bearing. The rotation of the second bevel gear drives the butterfly plate to move within the valve body via a sealed bearing. Simultaneously, the upper end of the rotating shaft of the second bevel gear can drive the pointer to move synchronously. Reverse rotation of the handle drives the butterfly plate to move in the valve body via a sealed bearing. When the outer wall of the butterfly plate is completely in contact with the inner wall of the valve body, the water flow can be blocked. Further rotation of the handle causes the side wall of the butterfly plate to abut against the rubber block, generating a pre-tightening force. During the rotation of the handle, the operator can observe the position of the pointer on the scale to understand the angle of the butterfly plate, and then adjust the water flow rate through the butterfly plate. At the same time, reverse rotation of the handle causes the outer shell and side wall of the butterfly plate to abut against the valve body and the rubber block respectively. The outer wall and side wall of the butterfly plate simultaneously block and seal the water flow, effectively improving the flow blocking and sealing performance, thereby improving practicality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 for Figure 1 A front sectional view;

[0014] Figure 3 for Figure 2 Top sectional view;

[0015] Figure 4 for Figure 2 Enlarged view of A in the middle;

[0016] Figure 5 for Figure 2 Top view of the inner shell.

[0017] In the diagram: 1. Flow regulation structure, 101. Handle, 102. First bevel gear, 103. Second bevel gear, 104. Butterfly plate, 105. Rubber block, 106. Pointer, 107. Dial, 2. Housing, 3. Valve body, 4. Horizontal pipe, 5. Flange. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] See attached document Figures 1-5In this embodiment, a butterfly valve flow regulating device includes a valve body 3 and a horizontal pipe 4. The valve body 3 is fixedly connected to the horizontal pipe 4 on both sides. The two horizontal pipes 4 are fixedly connected to flanges 5 at their ends. The upper end of the outer wall of the valve body 3 is fixedly connected to a shell 2. A flow regulating structure 1 is provided on the right side of the shell 2. Multiple through holes are machined on the inner wall of the flange 5.

[0020] The first bevel gear 102 is rotatably connected to the outer casing 2 via a bearing. The first bevel gear 102 can rotate within the outer casing 2 via the bearing. The second bevel gear 103 is rotatably connected to the outer casing 2 via a bearing. The second bevel gear 103 can rotate within the outer casing 2 via the bearing. The butterfly plate 104 is rotatably connected to the valve body 3 via a sealed bearing. The butterfly plate 104 can move within the valve body 3 via the sealed bearing.

[0021] See attached document Figures 1-5 The flow regulating structure 1 includes a handle 101. A first bevel gear 102 is fixedly connected to the rotating part of the handle 101. The outer wall of the first bevel gear 102 meshes with a second bevel gear 103. The rotation of the first bevel gear 102 can drive the second bevel gear 103 to rotate.

[0022] A pointer 106 is fixedly connected to the end of the rotating shaft of the second bevel gear 103. The rotation of the second bevel gear 103 can drive the support 106 to move synchronously. A dial 107 is fixedly connected to the upper end of the outer wall of the outer shell 2. A butterfly plate 104 is fixedly connected to the rotating part of the second bevel gear 103. A rubber block 105 is fixedly connected to the inner wall of the valve body 3. The outer wall of the butterfly plate 104 abuts against the rubber block 105. The outer wall of the butterfly plate 104 is sealed to the valve body 3.

[0023] Working principle:

[0024] Butterfly valve flow regulation operation:

[0025] When it is necessary to use the butterfly valve to adjust the water flow rate, the external bolts and nuts are used to fix and connect it to the external water pipe through the through hole machined in the inner wall of the flange 5. Then, turning the handle 101 drives the first bevel gear 102 to rotate in the outer shell 2 through the bearing. The rotation of the first bevel gear 102 drives the second bevel gear 103 to rotate in the outer shell 2 through the bearing. The rotation of the second bevel gear 103 drives the butterfly plate 104 to move in the valve body 3 through the sealed bearing. At the same time, the upper end of the rotating shaft of the second bevel gear 103 can drive the pointer 106 to move synchronously. Then, the staff can observe the scale on the dial 107 corresponding to the pointer 106 to know the angle of the butterfly plate 104, and then adjust the water flow rate through the butterfly plate 104.

[0026] When flow obstruction and sealing are required, the handle 101 is rotated in the opposite direction to drive the butterfly plate 104 to move in the opposite direction within the valve body 3 through the sealing bearing. When the outer wall of the butterfly plate 104 is completely in contact with the inner wall of the valve body 3, the water flow can be obstructed. Further rotation of the handle 101 causes the side wall of the butterfly plate 104 to abut against the rubber block 105 to generate a pre-tightening force. This movement can simultaneously obstruct and seal the water flow through the outer wall and side wall of the butterfly plate 104, further improving the flow obstruction and sealing performance.

[0027] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A butterfly valve flow regulating device, comprising a valve body (3) and a cross pipe (4), the valve body (3) is fixedly communicated with the cross pipe (4) on both sides, characterized in that: Two said transverse pipe (4) end fixed connection has flange (5), the valve body (3) outer wall upper end fixed connection has shell (2), the shell (2) right side is equipped with flow regulating structure (1), the flange (5) inner wall is processed with multiple through holes.

2. The butterfly valve flow regulating device of claim 1, wherein: The flow regulating structure (1) includes a handle (101), the handle (101) rotating part is fixedly connected with a first bevel gear (102), the first bevel gear (102) outer wall is meshed with a second bevel gear (103), the second bevel gear (103) rotating shaft end is fixedly connected with a pointer (106), the shell (2) outer wall upper end is fixedly connected with a scale disc (107), the second bevel gear (103) rotating part is fixedly connected with a butterfly plate (104), the valve body (3) inner wall is fixedly connected with a rubber block (105), the butterfly plate (104) outer wall is tightly abutted with the rubber block (105), the butterfly plate (104) outer wall is sealingly connected with the valve body (3).

3. The butterfly valve flow regulating device of claim 2, wherein: The rotating shaft of the first bevel gear (102) is rotatably connected with the shell (2) through a bearing.

4. The butterfly valve flow regulating device of claim 2, wherein: The rotating shaft of the second bevel gear (103) is rotatably connected with the shell (2) through a bearing.

5. The butterfly valve flow regulating device of claim 2, wherein: The rotating shaft of the butterfly plate (104) is rotatably connected with the valve body (3) through a sealing bearing.

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