A new type of butterfly valve

Abstract

This utility model provides a novel butterfly valve, relating to the field of butterfly valve technology. It includes a valve body with a butterfly plate on its inner side. A pipe wall cleaning component is located on the right side of the butterfly plate, comprising a fixed frame on the right side of the butterfly plate, with a rotating shaft rotatably connected to the inner side of the fixed frame. An impurity collection component is located on the left side of the butterfly plate, comprising a stainless steel sleeve on the left side of the butterfly plate. By incorporating the pipe wall cleaning component, the rotating shaft is driven to rotate by the impact of water flow on the turbine blades, causing three sets of circularly arrayed rubber scrapers to rotate synchronously. This effectively scrapes away dirt from the inner wall of the valve body from all angles. The rubber material ensures cleaning effectiveness without damaging the valve body. Simultaneously, a filter screen on the right end of the valve body pre-filters larger particles, reducing contaminants at the source. The overall structure is simple, without complex components, making it suitable for various application scenarios and preventing long-term dirt accumulation.

Description

Technical Field

[0001] This utility model relates to the field of butterfly valve technology, and in particular to a novel butterfly valve. Background Technology

[0002] A butterfly valve is a type of valve consisting of a valve body, a butterfly plate, a valve stem, and a drive device. It controls the flow or interruption of fluid flow by rotating the disc-shaped butterfly plate around the valve stem within the valve body. It is fully open at 0° and fully closed at 90°, with the flow rate adjustable at intermediate angles. With its compact structure, light weight, low cost, and low flow resistance, it is widely used in water supply and drainage engineering, HVAC systems, the power industry, the petrochemical industry, the metallurgical industry, the shipbuilding industry, and the food and pharmaceutical industries. Its main functions include cutting off fluid flow, regulating flow rate, reducing resistance, and adapting to complex working conditions such as high temperature, high pressure, and environments containing particles or corrosive substances through special design. It plays a core role in controlling the flow of media in fluid transportation systems, and its advantages are particularly significant in scenarios with large diameters, low to medium pressures, and where flow regulation is required.

[0003] A search revealed that the document with publication number "CN221591775U" mentions that "this utility model relates to the field of butterfly valves, disclosing a novel butterfly valve, including a first body and a third fixing screw. A first connecting block is fixedly connected to the inner wall of the middle part of the first body. Multiple first threaded holes are opened on the outer wall of the front end of the first connecting block. The inner wall of the first threaded holes is threaded with a first fixing screw. A second connecting block is fixedly connected to the outer wall of the front end of the first connecting block. In this utility model, the butterfly valve has a snap-fit ​​block at the upper part of the connecting rod, which can snap-fit ​​with the handle, allowing the operator to rotate the butterfly plate by the handle. When the user needs to frequently adjust the butterfly valve,..." The handle is fixed to the locking block using a third fixing screw. When the user does not want others to operate the butterfly valve, they can simply remove the handle to prevent others from operating the valve at will, thereby improving the safety of the butterfly valve. During use, the butterfly valve has a locking block on the upper part of the connecting rod, which engages with the handle, allowing the operator to rotate the butterfly plate. When the user needs to frequently adjust the butterfly valve, the handle can be fixed to the locking block using the third fixing screw. When the user does not want others to operate the butterfly valve, they can simply remove the handle to prevent others from operating the valve at will, thereby improving the safety of the butterfly valve.

[0004] However, existing butterfly valves only have the function of controlling water flow. Under the long-term scouring of water flow, microorganisms and other substances carried by the water will be adsorbed on the inner wall surface of the pipe, affecting the flow efficiency and service life of the valve body. At the same time, existing butterfly valves are equipped with filters, but a single filter cannot collect the scraped impurities. The impurities will flow freely in the valve body with the fluid, and will re-adhere to the pipe wall or enter the downstream pipe, causing secondary pollution and blockage. In addition, cleaning and replacing the impurity collection components often requires disassembling the entire valve body, which is inconvenient for maintenance.

[0005] Therefore, we have developed a new type of butterfly valve to solve the above problems. Utility Model Content

[0006] To overcome the above deficiencies, this utility model provides a novel butterfly valve, which aims to solve the aforementioned problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A novel butterfly valve includes a valve body, a butterfly plate disposed on the inner side of the valve body, a pipe wall cleaning assembly disposed on the right side of the butterfly plate, the pipe wall cleaning assembly including a fixed frame disposed on the right side of the butterfly plate, a rotating shaft rotatably connected to the inner side of the fixed frame, and an impurity collection assembly disposed on the left side of the butterfly plate, the impurity collection assembly including a stainless steel sleeve disposed on the left side of the butterfly plate, the inner wall of the stainless steel sleeve having a spiral groove.

[0009] As a further description of the above technical solution:

[0010] A protective sleeve is fixedly connected to the upper end of the valve body. A protective shell is installed on the upper end of the protective sleeve. The protective shell is made of cast iron. A rotating shaft is provided on the inner side of the protective shell. The rotating shaft passes through the protective sleeve and is fixedly connected to the butterfly plate. The butterfly plate and the valve body form a rotating structure through the rotating shaft.

[0011] As a further description of the above technical solution:

[0012] A driven gear is fixedly connected to the upper end of the rotating shaft. A meshing gear is engaged with one side of the driven gear. A connecting shaft is fixedly connected to the inner side of the meshing gear. A turntable is fixedly connected to one end of the connecting shaft.

[0013] As a further description of the above technical solution:

[0014] The surface of the rotating shaft is equipped with scrapers, and there are three sets of scrapers arranged in a circular array around the axis of the rotating shaft. The scrapers are made of rubber and fit against the inner wall of the valve body.

[0015] As a further description of the above technical solution:

[0016] The inner side of the scraper is provided with turbine blades, which are evenly distributed on the surface of the rotating shaft. A filter screen is snapped into the inner side of the right end of the valve body.

[0017] The stainless steel sleeve is cylindrical and made of 304 stainless steel. The spiral groove extends spirally along the inner wall of the stainless steel sleeve.

[0018] As a further description of the above technical solution:

[0019] A conical collecting net is provided on the side of the stainless steel sleeve away from the butterfly plate. The large-diameter end of the conical collecting net is fixedly connected to the stainless steel sleeve, and the mesh size of the conical collecting net gradually decreases from the large-diameter end to the small-diameter end.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. This utility model, by setting up a pipe wall cleaning component, uses water flow to impact the turbine fan blades to drive the rotating shaft, which in turn drives three sets of ring-shaped arrayed rubber scrapers to rotate synchronously, scraping away dirt from the inner wall of the valve body from 360 degrees without dead angles. The rubber material ensures cleaning effect without damaging the valve body. At the same time, the filter screen at the right end of the valve body can pre-filter larger particles of impurities, reducing pollutants at the source. Moreover, the overall structure is simple and has no complex components, making it suitable for various usage scenarios and preventing long-term accumulation of dirt.

[0022] 2. This utility model, through the setting of the impurity collection component, forms a vortex through the spiral groove on the inner wall of the stainless steel sleeve, causing the impurities scraped off by the scraper to move directionally along the spiral path. Combined with the conical collection net, the impurities are collected. The sleeve made of 304 stainless steel is corrosion-resistant, has high strength, and is suitable for complex water quality. Moreover, the design of the sleeve being plugged into the valve body and the collection net being separable from the sleeve allows for cleaning and replacement without disassembling the entire valve body, ensuring the efficiency of impurity collection and greatly improving the convenience of maintenance. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0024] Figure 2 This is a schematic diagram of one side of the overall structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the cooperative structure of the valve body, protective sleeve, rotating shaft and turntable of this utility model;

[0026] Figure 4 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0027] Figure 5This is a schematic diagram of the overall disassembled structure of this utility model;

[0028] Figure 6 This is a schematic diagram of the pipe wall cleaning component of this utility model.

[0029] The following are the labeling elements in the diagram: 1. Valve body; 2. Butterfly plate; 3. Protective sleeve; 4. Protective housing; 5. Rotating shaft; 6. Driven gear; 7. Meshing gear; 8. Connecting shaft; 9. Turntable; 10. Pipe wall cleaning assembly; 1001. Fixed frame; 1002. Rotating shaft; 1003. Scraper; 1004. Turbine fan blade; 1005. Filter screen; 11. Impurity collection assembly; 1101. Stainless steel sleeve; 1102. Spiral groove; 1103. Conical collection screen. Detailed Implementation

[0030] 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 protection scope of the present utility model.

[0031] Please see Figure 1-6 As shown, this utility model provides a technical solution: a novel butterfly valve, including a valve body 1, a butterfly plate 2 disposed on the inner side of the valve body 1, a pipe wall cleaning component 10 disposed on the right side of the butterfly plate 2, the pipe wall cleaning component 10 including a fixed frame 1001 disposed on the right side of the butterfly plate 2, a rotating shaft 1002 rotatably connected to the inner side of the fixed frame 1001, and an impurity collection component 11 disposed on the left side of the butterfly plate 2, the impurity collection component 11 including a stainless steel sleeve 1101 disposed on the left side of the butterfly plate 2, the inner wall of the stainless steel sleeve 1101 having a spiral groove 1102.

[0032] Furthermore, a protective sleeve 3 is fixedly connected to the upper end of the valve body 1, and a protective shell 4 is installed on the upper end of the protective sleeve 3. The protective shell 4 is made of cast iron, and a rotating shaft 5 is provided on the inner side of the protective shell 4. The rotating shaft 5 passes through the protective sleeve 3 and is fixedly connected to the butterfly plate 2. The butterfly plate 2 forms a rotating structure with the valve body 1 through the rotating shaft 5. Under the protection of the protective sleeve 3 and the protective shell 4, the rotating shaft 5 receives the power transmitted by the turntable 9 and rotates, thereby driving the butterfly plate 2 fixedly connected to it to rotate inside the valve body 1, changing the size of the channel between the butterfly plate 2 and the valve body 1, and controlling the flow of water.

[0033] Furthermore, a driven gear 6 is fixedly connected to the upper end of the rotating shaft 5, a meshing gear 7 is meshed on one side of the driven gear 6, a connecting shaft 8 is fixedly connected to the inner side of the meshing gear 7, and a turntable 9 is fixedly connected to one end of the connecting shaft 8. By rotating the turntable 9, the connecting shaft 8 is driven to rotate, and at the same time, the connecting shaft 8 drives the meshing gear 7 to rotate, the meshing gear 7 drives the driven gear 6 to rotate, and the driven gear 6 causes the rotating shaft 5 to rotate, which in turn drives the butterfly plate 2 to rotate inside the valve body 1, thereby realizing the opening and closing of the valve.

[0034] Furthermore, a scraper 1003 is installed on the surface of the rotating shaft 1002. There are three sets of scrapers 1003, which are arranged in a circular array around the axis of the rotating shaft 1002. The scrapers 1003 are made of rubber and fit against the inner wall of the valve body 1. The rotating shaft 1002 rotates under the action of power, which drives the scrapers 1003 to rotate synchronously. The scrapers 1003 are in close contact with the inner wall of the valve body 1, and scrape off the dirt on the inner wall.

[0035] Furthermore, a turbine blade 1004 is provided on the inner side of the scraper 1003, and the turbine blade 1004 is evenly distributed on the surface of the rotating shaft 1002. A filter screen 1005 is snapped into the inner side of the right end of the valve body 1. When the butterfly plate 2 is opened, the water flows through the filter screen 1005 and enters the inner side of the valve body 1. It first passes through the turbine blade 1004 on the surface of the rotating shaft 1002. Under the impact of the water flow, the turbine blade 1004 will drive the rotating shaft 1002 to rotate. Then the scraper 1003 fixedly connected to the surface of the rotating shaft 1002 will also rotate, so that the scraper 1003 cleans the inner wall of the water inlet end of the valve body 1, achieving a cleaning effect.

[0036] Furthermore, the stainless steel sleeve 1101 is cylindrical and made of 304 stainless steel. The spiral groove 1102 extends spirally along the inner wall of the stainless steel sleeve 1101. Under the action of the scraper 1003, the scraped impurities enter the stainless steel sleeve 1101 through the butterfly plate 2. Under the action of the spiral groove 1102, the water flow is forced to rotate along the pipe wall. The water flow carrying impurities forms a vortex and gradually moves in a specific direction along the spiral path of the spiral groove 1102 and is collected in the sleeve. The stainless steel sleeve 1101 is inserted into the valve body 1 and can be replaced and cleaned at any time.

[0037] Furthermore, a conical collecting mesh 1103 is provided on the side of the stainless steel sleeve 1101 away from the butterfly plate 2. The large-diameter end of the conical collecting mesh 1103 is fixedly connected to the stainless steel sleeve 1101, and the mesh size of the conical collecting mesh 1103 gradually decreases from the large-diameter end to the small-diameter end. The conical collecting mesh 1103 and the stainless steel sleeve 1101 are designed to be separable. When impurities fill the conical collecting mesh 1103, the conical collecting mesh 1103 can be removed separately for cleaning or replacement, avoiding the need for the valve body 1 to be completely disassembled or replaced, which is more convenient.

[0038] Working principle: The device is installed in the working position. Rotating the turntable 9 drives the connecting shaft 8 to rotate, which in turn drives the meshing gear 7 to rotate. The meshing gear 7 drives the driven gear 6 to rotate, which in turn drives the rotating shaft 5 to rotate. Ultimately, this causes the butterfly plate 2 to rotate within the valve body 1, changing the channel size to control the water flow. The water flows through the filter screen 1005 into the valve body 1, first impacting the turbine blades 1004 on the surface of the rotating shaft 1002. This causes the turbine blades 1004 to drive the rotating shaft 1002 to rotate, which in turn drives the scraper 1003 to rotate. The inner wall of the inlet end of the valve body 1 is cleaned. The impurities scraped off by the scraper 1003 are carried by the water flow through the butterfly plate 2 and enter the stainless steel sleeve 1101. Under the action of the spiral groove 1102, a vortex is formed. The impurities move along the spiral path to the conical collection net 1103 and are collected by the conical collection net 1103. When the conical collection net 1103 is full of impurities, it can be removed for cleaning or replacement. The stainless steel sleeve 1101 can also be pulled out from the valve body 1 for cleaning or replacement to ensure the continuous and stable operation of the device. This completes the use process of a new type of butterfly valve.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A new type of butterfly valve comprising a valve body (1), characterized in that: A butterfly plate (2) is provided on the inner side of the valve body (1). A pipe wall cleaning assembly (10) is provided on the right side of the butterfly plate (2). The pipe wall cleaning assembly (10) includes a fixed frame (1001) provided on the right side of the butterfly plate (2). A rotating shaft (1002) is rotatably connected to the inner side of the fixed frame (1001). An impurity collection assembly (11) is provided on the left side of the butterfly plate (2). The impurity collection assembly (11) includes a stainless steel sleeve (1101) provided on the left side of the butterfly plate (2). A spiral groove (1102) is provided on the inner wall of the stainless steel sleeve (1101).

2. A new butterfly valve according to claim 1, characterized in that A protective sleeve (3) is fixedly connected to the upper end of the valve body (1). A protective shell (4) is installed on the upper end of the protective sleeve (3). The protective shell (4) is made of cast iron. A rotating shaft (5) is provided on the inner side of the protective shell (4). The rotating shaft (5) passes through the protective sleeve (3) and is fixedly connected to the butterfly plate (2). The butterfly plate (2) and the valve body (1) form a rotating structure through the rotating shaft (5).

3. A new butterfly valve according to claim 2, characterized in that A driven gear (6) is fixedly connected to the upper end of the rotating shaft (5), a meshing gear (7) is meshed on one side of the driven gear (6), a connecting shaft (8) is fixedly connected to the inner side of the meshing gear (7), and a turntable (9) is fixedly connected to one end of the connecting shaft (8).

4. A new butterfly valve according to claim 1, characterized in that, The surface of the rotating shaft (1002) is equipped with scrapers (1003), and there are three sets of scrapers (1003). The scrapers (1003) are arranged in a ring array with the axis of the rotating shaft (1002) as the center. The scrapers (1003) are made of rubber and are in contact with the inner wall of the valve body (1).

5. A new butterfly valve according to claim 4, characterized in that The inner side of the scraper (1003) is provided with turbine blades (1004), and the turbine blades (1004) are evenly distributed on the surface of the rotating shaft (1002). The inner side of the right end of the valve body (1) is fitted with a filter screen (1005).

6. A novel butterfly valve according to claim 1, characterized in that, The stainless steel sleeve (1101) is cylindrical and made of 304 stainless steel. The spiral groove (1102) extends spirally along the inner wall of the stainless steel sleeve (1101).

7. A novel butterfly valve according to claim 1, characterized in that, A conical collecting net (1103) is provided on the side of the stainless steel sleeve (1101) away from the butterfly plate (2). The large-diameter end of the conical collecting net (1103) is fixedly connected to the stainless steel sleeve (1101), and the mesh size of the conical collecting net (1103) gradually decreases from the large-diameter end to the small-diameter end.

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