Butterfly valve

Abstract

The utility model belongs to the technical field of butterfly valves, and particularly relates to a butterfly valve which comprises a valve body, the outer side of the valve body is fixedly sleeved with two symmetrically-distributed installation discs, a fixing cylinder is fixedly connected to the interior of the valve body, a valve rod is arranged in the fixing cylinder and rotationally connected with the valve body, and the valve rod is fixedly connected with the valve body. The outer side of the valve rod is fixedly sleeved with a valve plate, the valve plate is rotationally connected with the valve body, the upper end of the fixing cylinder is fixedly connected with a mounting box, the mounting box is rotationally connected with the valve rod, and the outer side of the valve rod is fixedly sleeved with a first bevel gear. Through the arrangement of the filter screen, impurities in circulating fluid can be filtered out, and under the impact of high-speed fluid, the rotating blades can drive the rotating rod to drive the filter screen to rotate, so that the bristles move along the surface of the filter screen to clean the impurities attached to the filter screen, and the circulating effect of the filter screen is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, and specifically relates to a butterfly valve. Background Art

[0002] As is well known, a butterfly valve is a commonly used control valve with a simple structure and convenient operation. Butterfly valves are widely used in fluid control systems in fields such as chemical industry, petroleum, metallurgy, food, and pharmaceuticals to regulate the flow rate and pressure of fluids and achieve the opening, closing, and regulation of fluids.

[0003] The utility model patent with the publication number CN215214778U discloses a new type of butterfly valve, which includes an actuator, a valve body, and a base. The valve body is arranged on the base, a valve cavity is formed inside the valve body, a valve shaft penetrates through the valve cavity, and a butterfly plate assembly is arranged on the valve shaft. The butterfly plate assembly includes a connecting plate body and a wear-resistant and corrosion-resistant outer plate. One end face of the connecting plate body is connected to the valve shaft, and the other end face of the connecting plate body is connected to the wear-resistant and corrosion-resistant outer plate.

[0004] However, there are still certain deficiencies in the existing butterfly valves: First, although the existing butterfly valves adopt the meshing relationship between bevel gears to drive the valve plate to rotate, due to the influence of hard friction, the transmission effect is prone to be poor after long-term use.

[0005] Secondly, most of the existing butterfly valves simply use a straight-through valve body for fluid circulation. Due to the presence of impurities in the fluid, long-term use will not only cause wear to the valve plate but also have a certain impact on subsequent equipment. Content of the Utility Model

[0006] The purpose of the utility model is to provide a butterfly valve, which solves the problem that although the existing butterfly valves adopt the meshing relationship between bevel gears to drive the valve plate to rotate, due to the influence of hard friction, the transmission effect is prone to be poor after long-term use; and solves the problem that most of the existing butterfly valves simply use a straight-through valve body for fluid circulation. Due to the presence of impurities in the fluid, long-term use will not only cause wear to the valve plate but also have a certain impact on subsequent equipment.

[0007] To achieve the above object, the present utility model provides the following technical solution: a butterfly valve, comprising a valve body, two symmetrically distributed mounting plates are fixedly sleeved on the outer side of the valve body, a fixed cylinder is fixedly connected inside the valve body, a valve rod is arranged inside the fixed cylinder, the valve rod is rotatably connected to the valve body, a valve plate is fixedly sleeved on the outer side of the valve rod, the valve plate is rotatably connected to the valve body, an installation box is fixedly connected to the upper end of the fixed cylinder, the installation box is rotatably connected to the valve rod, a bevel gear one is fixedly sleeved on the outer side of the valve rod, a rotating shaft is installed inside the installation box through a bearing, a bevel gear two is fixedly sleeved on the outer side of the rotating shaft, the bevel gear two meshes with the bevel gear one, a rotating ring is installed on the outer side of the rotating shaft through a support rod, a filtering mechanism is arranged inside the valve body, and a lubricating mechanism is arranged at the upper end of the installation box.

[0008] Preferably, the filtering mechanism includes a rotating disk, the inner wall of the valve body is rotatably connected with a rotating disk, a filter screen is fixedly connected inside the rotating disk, a limiting piece is fixedly connected to the inner wall of the valve body, the limiting piece contacts the rotating disk, a rotating rod is fixedly connected inside the rotating disk, a rotating blade is fixedly connected to the surface of the rotating rod, a fixed piece is fixedly connected to the inner wall of the valve body and on the left side of the rotating disk, a brush is fixedly connected to the right end of the fixed piece, the brush contacts the filter screen. Through the setting of the filter screen, impurities in the fluid can be filtered out. Under the impact of high-speed fluid, the rotating blade can drive the rotating rod to rotate, so as to drive the filter screen to rotate, and the brush moves along the surface of the filter screen to clean the impurities attached to the filter screen to ensure the flow effect of the filter screen.

[0009] Preferably, a plurality of limiting pieces are provided, and the plurality of limiting pieces are evenly distributed on the valve body. Through the setting of the limiting pieces, the rotation of the rotating disk can be limited.

[0010] Preferably, a plurality of brushes are provided, and the plurality of brushes are evenly distributed on the fixed piece. Through the setting of the brushes, the impurities attached to the filter screen can be cleaned.

[0011] Preferably, the lubricating mechanism includes an oil storage cylinder, the oil storage cylinder is fixedly connected to the upper end of the installation box, a diversion pipe is fixedly connected inside the oil storage cylinder, the diversion pipe is fixedly connected to the installation box, a terminal rod is slidably connected inside the oil storage cylinder, a guide plate is fixedly connected to the lower end of the terminal rod, the guide plate is slidably connected to the oil storage cylinder, a plug is fixedly connected to the middle of the lower end of the guide plate, and the plug is slidably connected to the diversion pipe. By pulling the terminal rod upward, the guide plate can be driven to move, and then the plug can be driven to move, and finally the plug is separated from the diversion pipe. Under the action of the diversion pipe, the lubricating oil can be diverted, and then the bevel gear two and the bevel gear one can be lubricated.

[0012] Preferably, a spring is welded to the lower end of the guide plate, and the other end of the spring is welded to the oil storage cylinder. Through the arrangement of the spring, the guide plate can be connected and used.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. Through the arrangement of the filter screen, the present utility model can filter impurities from the flowing fluid. Under the impact of high-speed fluid, the rotating blade can drive the rotating rod to drive the filter screen to rotate, so that the brush bristles move along the surface of the filter screen to clean the impurities attached to the filter screen, thereby ensuring the flow effect of the filter screen.

[0015] 2. By pulling the end rod upward to drive the guide plate to move, the spring deforms, and then the plug disengages from the diversion pipe. Under the action of the diversion pipe, the lubricating oil can be diverted to lubricate the first bevel gear and the second bevel gear, thereby improving the meshing transmission effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional view of the overall structure of the present utility model;

[0017] Figure 2 is of the present utility model Figure 1 sectional three-dimensional view;

[0018] Figure 3 is of the present utility model Figure 2 top three-dimensional view;

[0019] Figure 4 is of the present utility model Figure 2 side three-dimensional view;

[0020] Figure 5 is of the present utility model Figure 2 lubrication mechanism three-dimensional view.

[0021] In the figure: 1. Valve body; 2. Mounting plate; 3. Fixed cylinder; 4. Valve rod; 5. Valve plate; 6. Installation box; 7. First bevel gear; 8. Rotating shaft; 9. Second bevel gear; 10. Rotating ring; 11. Filtering mechanism; 12. Lubrication mechanism; 111. Rotating disk; 112. Filter screen; 113. Limiting piece; 114. Rotating rod; 115. Rotating blade; 116. Fixed piece; 117. Brush bristles; 121. Oil storage cylinder; 122. Diversion pipe; 123. End rod; 124. Guide plate; 125. Spring; 126. Plug. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figure 1 、 Figure 2 A butterfly valve includes a valve body 1. Two symmetrically distributed mounting plates 2 are fixedly sleeved on the outer side of the valve body 1. A fixed cylinder 3 is fixedly connected inside the valve body 1. A valve stem 4 is arranged inside the fixed cylinder 3. The valve stem 4 is rotatably connected to the valve body 1. A valve plate 5 is fixedly sleeved on the outer side of the valve stem 4. The valve plate 5 is rotatably connected to the valve body 1. An installation box 6 is fixedly connected to the upper end of the fixed cylinder 3. The installation box 6 is rotatably connected to the valve stem 4. A bevel gear one 7 is fixedly sleeved on the outer side of the valve stem 4. A rotating shaft 8 is installed inside the installation box 6 through a bearing. A bevel gear two 9 is fixedly sleeved on the outer side of the rotating shaft 8. The bevel gear two 9 meshes with the bevel gear one 7. A rotating ring 10 is installed on the outer side of the rotating shaft 8 through a support rod.

[0024] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 A filtering mechanism 11 is arranged inside the valve body 1. The filtering mechanism 11 includes a rotating disk 111. The rotating disk 111 is rotatably connected to the inner wall of the valve body 1. A filter screen 112 is fixedly connected inside the rotating disk 111. A limiting piece 113 is fixedly connected to the inner wall of the valve body 1. The limiting piece 113 contacts the rotating disk 111. A rotating rod 114 is fixedly connected inside the rotating disk 111. A rotating blade 115 is fixedly connected to the surface of the rotating rod 114. A fixed piece 116 is fixedly connected to the inner wall of the valve body 1 and on the left side of the rotating disk 111. A brush hair 117 is fixedly connected to the right end of the fixed piece 116. The brush hair 117 contacts the filter screen 112. Through the setting of the filter screen 112, impurities in the fluid can be filtered out. Under the impact of high-speed fluid, the rotating blade 115 can drive the rotating rod 114 to rotate, so as to drive the filter screen 112 to rotate, and make the brush hair 117 move along the surface of the filter screen 112 to clean the impurities attached to the filter screen 112 to ensure the flow effect of the filter screen 112.

[0025] Please refer to Figure 2 、 Figure 3 、 Figure 4, a plurality of limiting pieces 113 are provided, and the plurality of limiting pieces 113 are evenly distributed on the valve body 1. Through the arrangement of the limiting pieces 113, the rotation of the rotating disk 111 can be limited. A plurality of bristles 117 are provided, and the plurality of bristles 117 are evenly distributed on the fixing piece 116. Through the arrangement of the bristles 117, the impurities attached to the filter screen 112 can be cleaned.

[0026] Please refer to Figure 1 , Figure 2 , Figure 5 , a lubricating mechanism 12 is provided at the upper end of the installation box 6. The lubricating mechanism 12 includes an oil storage cylinder 121. The oil storage cylinder 121 is fixedly connected to the upper end of the installation box 6. A diversion pipe 122 is fixedly connected inside the oil storage cylinder 121. The diversion pipe 122 is fixedly connected to the installation box 6. A end rod 123 is slidably connected inside the oil storage cylinder 121. A guide plate 124 is fixedly connected to the lower end of the end rod 123. The guide plate 124 is slidably connected to the oil storage cylinder 121. A spring 125 is welded to the lower end of the guide plate 124. The other end of the spring 125 is welded to the oil storage cylinder 121. Through the arrangement of the spring 125, the guide plate 124 can be connected and used. A plug 126 is fixedly connected to the middle of the lower end of the guide plate 124. The plug 126 is slidably connected to the diversion pipe 122. By pulling the end rod 123 upward, the guide plate 124 is driven to move, and then the plug 126 is driven to move, and finally the plug 126 is separated from the diversion pipe 122. Under the action of the diversion pipe 122, the lubricating oil can be diverted, and then the bevel gear two 9 and the bevel gear one 7 can be lubricated.

[0027] The specific implementation process of the present utility model is as follows: When in use, through the arrangement of the filter screen 112, the particulate impurities in the fluid can be filtered out, and under the impact of the high-speed fluid, the rotating blades 115 can be pushed to rotate, so as to drive the rotating rod 114 to rotate, and then drive the rotating disk 111 to rotate, so that the rotating disk 111 slides along the surface of the limiting piece 113. Under the action of the limiting piece 113, the rotation of the rotating disk 111 can be ensured to be stable. When the rotating disk 111 rotates, the filter screen 112 can be driven to rotate, so that the bristles 117 move along the surface of the filter screen 112 to clean the impurities attached to the filter screen 112 to ensure the flow effect of the filter screen 112;

[0028] By pulling the end rod 123 upward, the guide plate 124 is driven to slide along the inner wall of the oil storage cylinder 121, the spring 125 deforms, and the plug 126 is driven to move. Finally, the plug 126 can be separated from the diversion pipe 122. Under the action of the diversion pipe 122, the lubricating oil can be diverted, and finally the lubricating oil contacts the bevel gear two 9 and the bevel gear one 7 to lubricate the bevel gear two 9 and the bevel gear one 7 to improve the meshing transmission effect between the bevel gear two 9 and the bevel gear one 7.

[0029] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A butterfly valve, comprising a valve body (1), characterized in that: Two symmetrically distributed mounting plates (2) are fixedly sleeved on the outer side of the valve body (1). A fixed cylinder (3) is fixedly connected inside the valve body (1). A valve rod (4) is arranged inside the fixed cylinder (3). The valve rod (4) is rotatably connected to the valve body (1). A valve plate (5) is fixedly sleeved on the outer side of the valve rod (4). The valve plate (5) is rotatably connected to the valve body (1). An installation box (6) is fixedly connected to the upper end of the fixed cylinder (3). The installation box (6) is rotatably connected to the valve rod (4). A first bevel gear (7) is fixedly sleeved on the outer side of the valve rod (4). A rotating shaft (8) is installed inside the installation box (6) through a bearing. A second bevel gear (9) is fixedly sleeved on the outer side of the rotating shaft (8). The second bevel gear (9) meshes with the first bevel gear (7). A rotating ring (10) is installed on the outer side of the rotating shaft (8) through a support rod. A filtering mechanism (11) is arranged inside the valve body (1). A lubricating mechanism (12) is arranged at the upper end of the installation box (6); The filtering mechanism (11) includes a rotating disk (111). The rotating disk (111) is rotatably connected to the inner wall of the valve body (1). A filter screen (112) is fixedly connected inside the rotating disk (111). A limiting piece (113) is fixedly connected to the inner wall of the valve body (1). The limiting piece (113) contacts the rotating disk (111). A rotating rod (114) is fixedly connected inside the rotating disk (111). A rotating blade (115) is fixedly connected to the surface of the rotating rod (114). A fixed piece (116) is fixedly connected to the inner wall of the valve body (1) and on the left side of the rotating disk (111). A brush hair (117) is fixedly connected to the right end of the fixed piece (116). The brush hair (117) contacts the filter screen (112); The lubricating mechanism (12) includes an oil storage cylinder (121). The oil storage cylinder (121) is fixedly connected to the upper end of the installation box (6). A diversion pipe (122) is fixedly connected inside the oil storage cylinder (121). The diversion pipe (122) is fixedly connected to the installation box (6). An end rod (123) is slidably connected inside the oil storage cylinder (121). A guide plate (124) is fixedly connected to the lower end of the end rod (123). The guide plate (124) is slidably connected to the oil storage cylinder (121). A plug (126) is fixedly connected to the middle of the lower end of the guide plate (124). The plug (126) is slidably connected to the diversion pipe (122).

2. A butterfly valve according to claim 1, characterized in that: A plurality of the limiting pieces (113) are provided, and the plurality of limiting pieces (113) are evenly distributed on the valve body (1).

3. A butterfly valve according to claim 1, characterized in that: A plurality of the brush hairs (117) are provided, and the plurality of brush hairs (117) are evenly distributed on the fixed piece (116).

4. A butterfly valve according to claim 1, characterized in that: A spring (125) is welded to the lower end of the guide plate (124), and the other end of the spring (125) is welded to the oil storage cylinder (121).

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