Butterfly valve with filtering function

Abstract

The utility model relates to power equipment technical field, specifically is a butterfly valve with filter function, including butterfly valve, the water inlet end swing joint of butterfly valve has filter equipment, the filter equipment includes the water outlet pipe, another end fixed communication of water outlet pipe has filter box, the inner chamber of filter box is detachably installed with filter bowl, filter bowl cylinder wall is equipped with filter hole, the bottom fixed communication of filter box has blowdown pipe, the one end swing installation of blowdown pipe far from filter box has blowdown valve, fluid first enters filter box, passes through the filter hole on filter bowl inner wall, the impurity is intercepted in filter bowl, filters after the water outlet pipe and flows into butterfly valve, opens blowdown valve and can discharge the impurity in filter bowl, the design of blowdown pipe and blowdown valve, can regularly discharge the impurity in filter bowl, realize the cleaning of filter equipment, need not frequent disassembly filter bowl, simple and convenient operation, filter equipment and butterfly valve combination, have guaranteed the fluid clean and avoided the impurity and blocked the pipeline, damaged equipment, promoted the stability of pipeline system.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, specifically a butterfly valve with a filtering function. Background Technology

[0002] In industrial pipeline systems, butterfly valves are a commonly used flow control and shut-off device, widely used in various fluid transportation scenarios, such as petroleum, chemical, water supply and drainage. However, in actual use, pipeline fluids often carry various impurities. These impurities can not only cause wear on internal components of the butterfly valve, such as valve plates and valve seats, affecting the sealing performance and service life of the butterfly valve, but may also cause pipeline blockage, affecting the normal operation of the entire system.

[0003] Traditional butterfly valves typically lack filtration capabilities. Even those with simple filtration structures often suffer from poor filtration due to inconvenient cleaning and maintenance. For instance, some butterfly valves only have a simple filter screen at the inlet, which is prone to clogging, resulting in poor filtration. Furthermore, cleaning the filter screen due to blockage or accumulation of impurities requires stopping the machine for disassembly, which is cumbersome. Frequent disassembly to clean the accumulated impurities or surface deposits on the filter screen can reduce the original sealing of the equipment, leading to leaks. Disassembly is also time-consuming and labor-intensive. Therefore, it is of great importance to develop a butterfly valve with a filtration device that can remove impurities without frequent disassembly. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, this utility model proposes a butterfly valve with a filtration function to solve the problems mentioned in the background art, such as the traditional butterfly valves not having a filtration function or the butterfly valves with filtration devices having inconvenient cleaning and requiring frequent disassembly and cleaning.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a butterfly valve with a filtration function, including a butterfly valve, wherein a filtration device is movably connected to the water inlet end of the butterfly valve;

[0006] The filtration device includes an outlet pipe, one end of which is movably connected to the inlet of a butterfly valve via a flange, and the other end of which is fixedly connected to a filter box. A cover is movably installed on the top of the filter box, and a filter cartridge is detachably installed inside the filter box. A gap is left between the outer wall of the filter cartridge and the inner wall of the filter box, forming a flow channel for the filtered fluid. The filter cartridge is made of stainless steel, and the filter cartridge wall has filter holes for filtering the fluid. The upper and lower ends of the filter cartridge are not closed. A drain pipe is fixedly connected to the bottom of the filter box, one end of which penetrates the bottom of the filter box and extends outward. A drain valve is movably installed at the end of the drain pipe away from the filter box.

[0007] Preferably, a fixing frame is fixedly installed near the top of the filter box cavity, and the top of the filter cylinder is movably installed on the side of the fixing frame near the box cover. A circular groove is opened at the bottom of the filter box cavity, and the inner cavity of the circular groove is engaged with the bottom of the filter cylinder. The inner diameter of the circular groove is adapted to the outer diameter of the bottom of the filter cylinder.

[0008] Preferably, a water inlet is fixedly installed on the top of the cover, one end of the water inlet penetrates the cover and extends into the inner cavity of the filter box, the extended end of the water inlet extends to the top of the filter cartridge, and a bolt is threadedly connected to the top of the cover. The cover and the filter box are detachably connected by bolts, and multiple sets of bolts are evenly distributed along the edge of the cover.

[0009] Preferably, the inner cavity of the filter box is provided with a cleaning device, which includes a drive shaft. The lower end of the drive shaft is rotatably connected to a bearing assembly. The lower end of the drive shaft is rotatably connected to the bottom center of the filter box through the bearing assembly. The bearing assembly is a sealed rolling bearing. The axis of the drive shaft coincides with the bottom center of the filter box. Three bushings are fixedly installed on the surface of the drive shaft. The bushings are equidistantly distributed along the axial direction of the drive shaft. Support columns are fixedly connected to both radially symmetrical sides of the bushings. An elastic cleaning brush assembly is provided at the outer end of the support column away from the bushing. The elastic cleaning brush assembly is used to clean the inner wall of the filter cartridge.

[0010] Preferably, the elastic cleaning assembly includes a brush plate, one side of which is movably connected to a support column, and a spring is fixedly installed on the other side of the brush plate. The springs are evenly spaced along the other side surface of the brush plate, and a wire brush is fixedly connected to the other end of the spring. The wire brush is in contact with the inner wall of the filter cartridge, and the wire brush is made of stainless steel.

[0011] Preferably, a motor is fixedly installed on the top of the cover, and the output shaft of the motor is connected to the other end of the transmission shaft via a coupling.

[0012] Preferably, the butterfly valve includes a valve body, an inlet flange at the inlet end of the valve body, the size of the inlet flange of the valve body being adapted to the outlet flange of the filter device, an outlet flange at the outlet end of the valve body, a valve plate movably mounted in the inner cavity of the valve body, a valve stem fixedly connected to the top of the valve plate, and a rotating handle fixedly connected to the top of the valve stem.

[0013] The advantages of this utility model are:

[0014] This invention features a drain pipe and drain valve at the bottom of the filter box, allowing for the periodic removal of impurities from the filter cartridge, thus cleaning the filtration device without frequent disassembly. Operation is simple and convenient. A motor mounted on the top of the box is activated, and its output shaft drives a transmission shaft via a coupling, rotating the bushing, support column, and elastic cleaning assembly. The steel wire brush in the elastic cleaning assembly, under the action of a spring, closely adheres to the inner wall of the filter cartridge, automatically cleaning it and sweeping impurities adhering to the inner wall to the bottom. The cleaned impurities can then be discharged through the drain pipe by opening the drain valve. This eliminates the need to disassemble the filter cartridge, reducing manual cleaning frequency, maintaining unobstructed filter pores, and ensuring stable filtration efficiency. The spring's elasticity ensures the steel wire brush remains in close contact with the inner wall of the filter cartridge, and the elastic cleaning assembly adapts to deformation or wear of the inner wall, preventing filter pore blockage and ensuring a long-lasting and stable cleaning effect. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the cleaning device structure of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the filtration device of this utility model;

[0019] Figure 4 This is a schematic diagram of the butterfly valve structure of this utility model;

[0020] Figure 5 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0021] In the diagram: 1. Butterfly valve; 101. Valve body; 102. Inlet flange; 103. Outlet flange; 104. Valve plate; 105. Valve stem; 106. Rotary handle; 2. Filtration device; 201. Outlet pipe; 202. Filter box; 203. Box cover; 204. Filter cartridge; 205. Filter hole; 206. Drain pipe; 207. Drain valve; 3. Fixing frame; 4. Circular groove; 5. Inlet; 6. Bolt; 7. Cleaning device; 71. Drive shaft; 72. Bearing assembly; 73. Bushing; 74. Support column; 75. Elastic cleaning brush assembly; 751. Brush plate; 752. Spring; 753. Wire brush; 8. Motor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application discloses a butterfly valve with a filtering function. (Refer to...) Figure 1 , Figure 3 and Figure 5 A butterfly valve with a filtering function includes a butterfly valve 1, and a filter device 2 is movably connected to the inlet end of the butterfly valve 1.

[0025] The filter device 2 includes an outlet pipe 201, one end of which is movably connected to the inlet of the butterfly valve 1 via a flange. The other end of the outlet pipe 201 is fixedly connected to a filter box 202. A cover 203 is movably installed on the top of the filter box 202. A filter cartridge 204 is detachably installed inside the filter box 202. A gap is left between the outer wall of the filter cartridge 204 and the inner wall of the filter box 202, forming a flow channel for the filtered fluid. The filter cartridge 204 is made of stainless steel. The filter cartridge 204 has filter holes 205 on its wall for filtering fluid. The filter cartridge 204 is not closed at either end. A drain pipe 206 is fixedly connected to the bottom of the filter box 202. One end of the drain pipe 206 passes through the bottom of the filter box 202 and extends outward. A drain valve 207 is movably installed at the end of the drain pipe 206 away from the filter box 202. After the fluid enters the filter box 202, it passes through the filter holes 205 of the filter cartridge 204. Because of the filter holes 205 on the wall of the filter cartridge 204... Impurities can be blocked and trapped inside the filter cartridge 204. The filtered fluid enters the gap between the outer wall of the filter cartridge 204 and the inner wall of the filter box 202. The filtered fluid in the gap flows to the butterfly valve 1 through the outlet pipe 201, and then enters the subsequent pipeline system through the butterfly valve 1. When the impurities in the filter cartridge 204 accumulate to a certain extent, the drain valve 207 fixedly connected to the drain pipe 206 at the bottom of the filter cartridge 204 is opened to discharge the impurities in the filter cartridge 204, thus cleaning the filter device 2. The impurities in the fluid are filtered through the filter holes 205 of the filter cartridge 204 to ensure that the fluid entering the subsequent pipeline system through the butterfly valve 1 is clean, avoiding impurities from clogging the pipes and damaging the equipment, while ensuring the stable operation of the entire fluid system. The cover 203, which is movably installed on the top of the filter box 202, is easy to open for maintenance or replacement of the filter cartridge 204. The drain pipe 206 and the drain valve 207 can directly discharge impurities without frequently disassembling the filter cartridge 204, simplifying the cleaning process.

[0026] refer to Figure 2 , Figure 3 and Figure 5A fixing bracket 3 is fixedly installed near the top of the inner cavity of the filter box 202. The top of the filter cartridge 204 is movably installed on the side of the fixing bracket 3 near the box cover 203. A circular groove 4 is opened at the bottom of the inner cavity of the filter box 202. The inner cavity of the circular groove 4 is engaged with the bottom of the filter cartridge 204. The inner diameter of the circular groove 4 is adapted to the outer diameter of the bottom of the filter cartridge 204. A water inlet 5 is fixedly installed on the top of the box cover 203. One end of the water inlet 5 passes through the box cover 203 and extends into the inner cavity of the filter box 202. The extended end of the water inlet 5 extends above the filter cartridge 204. The top of the box cover 203 is threaded. The cover 203 and the filter box 202 are connected by bolts 6. Multiple sets of bolts 6 are evenly distributed along the edge of the cover 203. The filter cartridge 204 is positioned and installed through the top fixing bracket 3 and the bottom circular groove 4 to ensure stability during filtration. When the drain valve 207 is opened, impurities are discharged from the filter cartridge 204 through the drain pipe 206. After removing the bolts 6 on the edge of the cover 203, the cover 203 can be removed and the filter cartridge 204 can be taken out from the fixing bracket 3 and the circular groove 4 for easy cleaning, inspection or replacement. Combined with the drain structure, the maintenance difficulty is reduced.

[0027] refer to Figure 1 , Figure 2 , Figure 3 and Figure 5The filter box 202 has a cleaning device 7 inside. The cleaning device 7 includes a drive shaft 71. A bearing assembly 72 is rotatably connected to the lower end of the drive shaft 71. The lower end of the drive shaft 71 is rotatably connected to the bottom center of the filter box 202 through the bearing assembly 72. The bearing assembly 72 is a sealed rolling bearing. The axis of the drive shaft 71 coincides with the bottom center of the filter box 202. Three bushings 73 are fixedly installed on the surface of the drive shaft 71. The bushings 73 are equidistantly distributed along the axial direction of the drive shaft 71. Support columns 74 are fixedly connected to both radially symmetrical sides of the bushings 73. An elastic cleaning assembly 75 is provided at the outer end away from the bushing 73. The elastic cleaning assembly 75 is used to clean the inner wall of the filter cartridge 204. The elastic cleaning assembly 75 includes a brush plate 751. One side of the brush plate 751 is movably connected to the support column 74. A spring 752 is fixedly installed on the other side of the brush plate 751. The springs 752 are evenly spaced along the other side surface of the brush plate 751. A wire brush 753 is fixedly connected to the other end of the spring 752. The wire brush 753 is in contact with the inner wall of the filter cartridge 204. The wire brush 753 is made of stainless steel. A motor 8 is fixedly installed on the top of the cover 203. The output shaft of motor 8 is connected to the other end of transmission shaft 71 via a coupling. After motor 8 starts, the output shaft of motor 8 drives transmission shaft 71 to rotate via the coupling. Transmission shaft 71 drives three sets of support columns 74 and elastic cleaning assembly 75 to rotate synchronously via bushing 73. The wire brush 753 of elastic cleaning assembly 75 is always in contact with the inner wall of filter cartridge 204 under the elastic force of spring 752. When elastic cleaning assembly 75 rotates with transmission shaft 71, it performs circumferential cleaning of the inner wall of filter cartridge 204, sweeping the impurities attached to the inner wall of filter cartridge 204 to the bottom of filter cartridge 204. The cleaned impurities can be removed through... Open the drain valve 207 and discharge through the drain pipe 206. If thorough cleaning is required, the cover 203 can be removed to take out the filter cartridge 204 for further processing. The lower end of the drive shaft 71 is connected to the bottom of the filter box 202 through a sealed rolling bearing, which ensures smooth rotation and prevents fluid leakage from the bearing. The rotating cleaning structure driven by the motor 8 can remove impurities attached to the inner wall of the filter cartridge 204 without disassembling the filter cartridge 204, reducing the frequency of manual cleaning, keeping the filter holes 205 unobstructed, and ensuring stable filtration efficiency. The elasticity of the spring 752 ensures that the wire brush 753 is always in close contact with the inner wall of the filter cartridge 204.

[0028] refer to Figure 1 and Figure 4The butterfly valve 1 includes a valve body 101, with an inlet flange 102 at the inlet end of the valve body 101. The size of the inlet flange 102 is adapted to the flange of the outlet pipe 201 of the filter device 2. An outlet flange 103 is provided at the outlet end of the valve body 101. A valve plate 104 is movably installed in the inner cavity of the valve body 101. A valve stem 105 is fixedly connected to the top of the valve plate 104. A rotating handle 106 is fixedly connected to the top of the valve stem 105. The butterfly valve 1 adopts existing technology equipment with conventional structure in this field. Its specific composition and working principle will not be described in detail. The inlet flange 102 of the butterfly valve 1 is adapted to the flange of the outlet pipe 201 of the filter device 2. The filtered fluid enters the butterfly valve 1 through the flange connection to realize the system connection. It works with the filter device 2 to ensure the cleanliness of the fluid, reduce the wear of impurities on the sealing surface and other components of the butterfly valve 1, and extend the service life of the butterfly valve 1. The outlet flange of the butterfly valve 1 is used to connect to the subsequent pipeline to transport the regulated fluid to the downstream.

[0029] Working principle: Fluid flows in from the inlet 5 at the top of the cover 203, directly guiding it to the top of the filter cartridge 204 and into its interior. The fluid passes through the filter holes 205 in the wall of the filter cartridge 204, where impurities are trapped. The filtered fluid flows through the gap between the filter cartridge 204 and the inner wall of the filter box 202 to the outlet pipe 201, and then through the inlet flange 102 of the butterfly valve 1 into the valve body 101. By manually rotating the handle 106 of the butterfly valve 1, the handle rotates the valve stem 105, which in turn rotates the valve plate 104, adjusting the opening and closing degree of the channel between the valve plate 104 and the valve body 101, thus controlling the flow of the filtered fluid. When impurities accumulate to a certain level inside the filter cartridge 204, the drain valve 207 on the drain pipe 206, which is fixedly connected to the bottom of the filter cartridge 204, is opened to discharge the impurities, thus achieving filtration. For cleaning device 2, when it is necessary to clean the impurities attached to the inner wall of the filter cartridge 204, the motor 8 on the top of the cover 203 is started. The output shaft of the motor 8 drives the transmission shaft 71 to rotate through the coupling. The transmission shaft 71 drives the three sets of support columns 74 and the elastic cleaning assembly 75 to rotate synchronously through the bushing 73. The wire brush 753 of the elastic cleaning assembly 75 is tightly attached to the inner wall of the filter cartridge 204 under the elastic force of the spring 752, and cleans the impurities attached to the inner wall of the filter cartridge 204. The impurities fall to the bottom of the filter cartridge 204. The drain valve 207 on the drain pipe 206 fixedly connected to the bottom of the filter cartridge 204 is opened, and the impurities in the filter cartridge 204 can be discharged through the drain pipe 206. When it is necessary to repair or replace the filter cartridge 204, the bolts 6 on the edge of the cover 203 are removed, and the cover 203 is removed. Then the filter cartridge 204 can be taken out from the top fixing frame 3 and the bottom round groove 4 for repair or replacement.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A butterfly valve with a filtering function, comprising a butterfly valve (1), characterized in that: The inlet end of the butterfly valve (1) is movably connected to a filter device (2); The filtration device (2) includes an outlet pipe (201), one end of which is movably connected to the inlet of a butterfly valve (1) via a flange, and the other end of which is fixedly connected to a filter box (202). A cover (203) is movably installed on the top of the filter box (202), and a filter cartridge (204) is detachably installed in the inner cavity of the filter box (202). A gap is left between the outer wall of the filter cartridge (204) and the inner wall of the filter box (202), and the gap forms the flow of the filtered fluid. The filter cartridge (204) is made of stainless steel. The filter cartridge (204) has filter holes (205) on its wall. The filter holes (205) are used to filter fluid. The filter cartridge (204) is not closed at the top and bottom. The bottom of the filter box (202) is fixedly connected to a drain pipe (206). One end of the drain pipe (206) passes through the bottom of the filter box (202) and extends outward. A drain valve (207) is movably installed at the end of the drain pipe (206) away from the filter box (202).

2. A butterfly valve with a filtering function according to claim 1, characterized in that: A fixing frame (3) is fixedly installed near the top of the inner cavity of the filter box (202). The top of the filter cylinder (204) is movably installed on the side of the fixing frame (3) near the box cover (203). A circular groove (4) is opened at the bottom of the inner cavity of the filter box (202). The inner cavity of the circular groove (4) is engaged with the bottom of the filter cylinder (204). The inner diameter of the circular groove (4) is adapted to the outer diameter of the bottom of the filter cylinder (204).

3. A butterfly valve with a filtering function according to claim 1, characterized in that: A water inlet (5) is fixedly installed on the top of the cover (203). One end of the water inlet (5) passes through the cover (203) and extends into the inner cavity of the filter box (202). The extended end of the water inlet (5) extends to the top of the filter cartridge (204). A bolt (6) is threadedly connected to the top of the cover (203). The cover (203) and the filter box (202) are detached and connected by the bolt (6). Multiple sets of bolts (6) are evenly distributed along the edge of the cover (203).

4. A butterfly valve with a filtering function according to claim 1, characterized in that: The filter box (202) is provided with a cleaning device (7) in its inner cavity. The cleaning device (7) includes a drive shaft (71). The lower end of the drive shaft (71) is rotatably connected to a bearing assembly (72). The lower end of the drive shaft (71) is rotatably connected to the bottom center of the filter box (202) through the bearing assembly (72). The bearing assembly (72) is a sealed rolling bearing. The axis of the drive shaft (71) coincides with the bottom center of the filter box (202). A bushing (73) is fixedly installed on the surface of the drive shaft (71). There are three bushings (73). The bushings (73) are equidistantly distributed along the axial direction of the drive shaft (71). Support columns (74) are fixedly connected to both sides of the bushings (73) in a radially symmetrical manner. An elastic cleaning component (75) is provided at the outer end of the support column (74) away from the bushing (73). The elastic cleaning component (75) is used to clean the inner wall of the filter cartridge (204).

5. A butterfly valve with a filtering function according to claim 4, characterized in that: The elastic cleaning assembly (75) includes a brush plate (751), one side of which is movably connected to a support column (74), and a spring (752) is fixedly installed on the other side of the brush plate (751). The springs (752) are evenly distributed along the other side surface of the brush plate (751), and a wire brush (753) is fixedly connected to the other end of the spring (752). The wire brush (753) is in contact with the inner wall of the filter cartridge (204), and the wire brush (753) is made of stainless steel.

6. A butterfly valve with a filtering function according to claim 1 or 4, characterized in that: A motor (8) is fixedly installed on the top of the box cover (203), and the output shaft of the motor (8) is connected to the other end of the transmission shaft (71) via a coupling.

7. A butterfly valve with a filtering function according to claim 1, characterized in that: The butterfly valve (1) includes a valve body (101), an inlet flange (102) is provided at the inlet end of the valve body (101), the size of the inlet flange (102) of the valve body (101) is adapted to the flange of the outlet pipe (201) of the filter device (2), an outlet flange (103) is provided at the outlet end of the valve body (101), a valve plate (104) is movably installed in the inner cavity of the valve body (101), a valve stem (105) is fixedly connected to the top of the valve plate (104), and a rotating handle (106) is fixedly connected to the top of the valve stem (105).

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