Electric multi-clack expansion butterfly valve with valve plate convenient to replace
By designing a convenient replacement structure and filter system in an electric multi-flap expansion butterfly valve, the problem of inconvenience of rapid replacement of the valve plate is solved, the production efficiency and feed accuracy are improved, and labor costs are reduced.
Patent Information
- Application Number
- CN202422547250.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-10-22
AI Technical Summary
The commonly used electric multi-flap expansion butterfly valve plate is inconvenient for rapid replacement, resulting in high labor costs and low production efficiency.
A structure for easy replacement is designed, including valve stem, threaded rod, thread groove, seal ring and filter tube. The valve plate is quickly replaced by manually rotating the first handle, and the filtering and filter screen are cleaned through the filter tube and filter box, and the valve stem lubricity is maintained through the oil inlet hole.
It realizes rapid replacement of valve plates, improves production efficiency, ensures the accuracy of feeding and the accuracy of butterfly valves, and reduces labor costs.
Smart Images
Figure CN223165027U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric butterfly valves, in particular to an electric multi-lobe expansion butterfly valve with a valve plate that is convenient to replace. Background Technique
[0002] An electric butterfly valve is a kind of valve that uses a circular butterfly plate as a closing and opening part and rotates with the valve stem to open, close, and regulate a fluid passage.
[0003] An electric multi-lobe expansion butterfly valve is different from a general butterfly valve. It is composed of multiple lobes, can better control the fluid, and has a higher flow capacity and accuracy. However, the commonly used valve plate is not convenient for quick replacement. When the valve plate is damaged or needs to be replaced, it is necessary to disassemble the valve body together, which greatly increases the labor cost and reduces the production efficiency.
[0004] Now, an electric multi-lobe expansion butterfly valve with a valve plate that is convenient to replace is proposed to solve the above problems. Content of the Utility Model
[0005] The purpose of the utility model is to provide an electric multi-lobe expansion butterfly valve with a valve plate that is convenient to replace, so as to solve the problem that the valve plate is not convenient for quick replacement proposed in the above background technique.
[0006] To achieve the above purpose, the utility model provides the following technical solution: an electric multi-lobe expansion butterfly valve with a valve plate that is convenient to replace, including an electric actuator, a gas box is fixedly connected to the front end of the electric actuator, an air outlet is opened at the top end of the gas box, a valve body is installed at the bottom end of the electric actuator, an air inlet is opened on the left side of the valve body, a hose is movably connected between the air outlet and the air inlet, a sealing ring is installed inside the valve body, an upper support packing is installed inside the valve body, a lower support packing is installed below the upper support packing, and a structure convenient for replacement is arranged inside the sealing ring;
[0007] The structure convenient for replacement includes a valve stem, the valve stem is movably connected inside the valve body, a threaded rod is fixedly connected to the top end of the valve stem, a first handle is fixedly connected to the bottom end of the valve stem, a valve plate is sleeved outside the valve stem, a first fixing hole is opened on the upper side of the front end of the valve plate, a second fixing hole is opened on the lower side of the front end of the valve plate, and a threaded groove is opened at the bottom end of the output end of the electric actuator.
[0008] Preferably, the sizes of the threaded rod and the threaded groove match each other, and the outer diameter of the valve stem matches the inner diameters of the upper support packing and the lower support packing.
[0009] Preferably, the inner contour of the sealing ring matches the outer contour of the valve plate, and the outer contour of the sealing ring matches the inner contour of the valve body.
[0010] Preferably, the air outlet, the air inlet, and the inside of the hose are connected in communication, and the valve plate and the valve rod can be fixed through the first fixing hole and the second fixing hole.
[0011] Preferably, a filter pipe is installed at the front end of the valve body. A fixing ring is welded inside the filter pipe. A filter box is movably connected inside the filter pipe. A filter screen is installed inside the filter box. A second handle is movably connected to the left side inside the filter box.
[0012] Preferably, the outer contour of the filter box matches the inner contour of the fixing ring, and the filter box can be pulled out of the filter pipe through the second handle.
[0013] Preferably, a first oil inlet hole is opened on the upper side of the front end of the valve body. A first oil cap is sleeved outside the first oil inlet hole. A second oil inlet hole is opened on the lower side of the front end of the valve body. A second oil cap is sleeved outside the second oil inlet hole.
[0014] Preferably, the outer diameter of the first oil inlet hole matches the inner diameter of the first oil cap, and the outer diameter of the second oil inlet hole matches the inner diameter of the second oil cap.
[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: The electric multi-lobe expansion butterfly valve facilitating the replacement of the valve plate not only realizes the rapid replacement of the valve plate, but also realizes the filtration before feeding, and also reduces the resistance between the valve rod and the valve body;
[0016] (1) By providing the first fixing hole, the second fixing hole, the valve rod, the first handle, the threaded rod, and the threaded groove, during use, by manually rotating the first handle, the first handle drives the valve rod to rotate. The top end of the valve rod is fixedly connected with a threaded rod. The outer contour of the threaded rod matches the threaded groove at the bottom side of the output end of the electric actuator, so as to pull the valve rod downward and out of the inside of the valve body, thereby realizing the rapid replacement of the valve plate;
[0017] (2) By providing the filter pipe, the fixing ring, the filter box, the filter screen, and the second handle, during use, the electric multi-lobe expansion butterfly valve is mostly used for precisely controlling the flow rate. When large granular objects such as sand and gravel appear in the feed, it is easy to cause blockage of the valve plate, thereby affecting the accuracy of feeding. By installing a filter pipe at the front end of the valve body and installing a filter box inside the filter pipe, the effective control of the feed size is realized. After the equipment is used for a period of time, the filter box can be pulled out through the second handle, thereby realizing the cleaning and rapid replacement of the filter screen;
[0018] (3) By providing a first oil inlet hole, a first oil cap, a second oil inlet hole and a second oil cap, during use, a first oil inlet hole and a second oil inlet hole are provided at the front end of the valve body. The first oil inlet hole, the second oil inlet hole and the interior of the valve body are in communication, so that the valve stem can maintain lubrication, reduce the resistance between the valve stem and the valve body, and thus provide support for the accuracy of the butterfly valve. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 is a front sectional structure schematic diagram of the present utility model;
[0020] Figure 2 is a front structure schematic diagram of the present utility model;
[0021] Figure 3 is a sectional structure schematic diagram of the valve body of the present utility model;
[0022] Figure 4 is a side structure schematic diagram of the present utility model;
[0023] Figure 5 of the present utility model Figure 1 is a partial sectional enlarged structure schematic diagram at A in;
[0024] Figure 6 is a partial sectional structure schematic diagram of the bottom view of the valve plate of the present utility model.
[0025] In the figure: 1, electric actuator; 2, air box; 3, valve body; 4, sealing ring; 5, valve plate; 6, first fixing hole; 7, second fixing hole; 8, upper support packing; 9, lower support packing; 10, air outlet hole; 11, air inlet hole; 12, hose; 13, valve stem; 14, first handle; 15, threaded rod; 16, threaded groove; 17, filter pipe; 18, fixing ring; 19, filter box; 20, filter screen; 21, second handle; 22, first oil inlet hole; 23, first oil cap; 24, second oil inlet hole; 25, second oil cap. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0026] 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 the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.
[0027] Embodiment 1: Please refer to Figures 1-6, An electric multi-lobe expansion butterfly valve facilitating valve plate replacement, comprising an electric actuator 1. A gas box 2 is fixedly connected to the front end of the electric actuator 1. An air outlet hole 10 is provided at the top of the gas box 2. A valve body 3 is installed at the bottom end of the electric actuator 1. An air inlet hole 11 is provided on the left side of the valve body 3. A hose 12 is movably connected between the air outlet hole 10 and the air inlet hole 11. A sealing ring 4 is installed inside the valve body 3. An upper support packing 8 is installed inside the valve body 3. A lower support packing 9 is installed below the upper support packing 8. A facilitating replacement structure is provided inside the sealing ring 4;
[0028] Please refer to Figures 1-6 , An electric multi-lobe expansion butterfly valve facilitating valve plate replacement further comprises a facilitating replacement structure. The facilitating replacement structure includes a valve stem 13. The valve stem 13 is movably connected inside the valve body 3. A threaded rod 15 is fixedly connected to the top end of the valve stem 13. A first handle 14 is fixedly connected to the bottom end of the valve stem 13. A valve plate 5 is sleeved outside the valve stem 13. A first fixing hole 6 is provided on the upper side of the front end of the valve plate 5. A second fixing hole 7 is provided on the lower side of the front end of the valve plate 5. A threaded groove 16 is provided at the bottom end of the output end of the electric actuator 1;
[0029] The sizes of the threaded rod 15 and the threaded groove 16 match. The outer diameter of the valve stem 13 matches the inner diameters of the upper support packing 8 and the lower support packing 9. The inner contour of the sealing ring 4 matches the outer contour of the valve plate 5. The outer contour of the sealing ring 4 matches the inner contour of the valve body 3. The air outlet hole 10, the air inlet hole 11, and the inside of the hose 12 are interconnected. The valve plate 5 and the valve stem 13 can be fixed through the first fixing hole 6 and the second fixing hole 7;
[0030] Specifically, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , during use, by manually rotating the first handle 14, the first handle 14 drives the valve stem 13 to rotate. The threaded rod 15 is fixedly connected to the top end of the valve stem 13, and the outer contour of the threaded rod 15 matches the threaded groove 16 at the bottom side of the output end of the electric actuator 1, so as to pull the valve stem 13 out of the valve body 3 downward, thereby realizing the rapid replacement of the valve plate 5.
[0031] Embodiment 2: A filter pipe 17 is installed at the front end of the valve body 3. A fixing ring 18 is welded inside the filter pipe 17. A filter box 19 is movably connected inside the filter pipe 17. A filter screen 20 is installed inside the filter box 19. A second handle 21 is movably connected to the left side inside the filter box 19. The outer contour of the filter box 19 matches the inner contour of the fixing ring 18. The filter box 19 can be pulled out of the filter pipe 17 through the second handle 21;
[0032] Specifically, as shown in Figure 2 and Figure 4As shown in the figure, when in use, the electric multi-lobe expansion butterfly valve is mostly used for precise flow control. When large granular objects such as sand and gravel appear in the feed, it is easy to cause blockage of the valve plate 5, thus affecting the accuracy of the feed. By installing a filter pipe 17 at the front end of the valve body 3 and installing a filter box 19 inside the filter pipe 17, effective control of the feed size can be achieved. When the equipment has been used for a period of time, the filter box 19 can be pulled out through the second handle 21, thereby realizing the cleaning and quick replacement of the filter screen 20.
[0033] Embodiment 3: A first oil inlet hole 22 is opened on the upper side of the front end of the valve body 3, and a first oil cap 23 is sleeved outside the first oil inlet hole 22. A second oil inlet hole 24 is opened on the lower side of the front end of the valve body 3, and a second oil cap 25 is sleeved outside the second oil inlet hole 24. The outer diameter of the first oil inlet hole 22 matches the inner diameter of the first oil cap 23, and the outer diameter of the second oil inlet hole 24 matches the inner diameter of the second oil cap 25;
[0034] Specifically, as Figure 2 、 Figure 3 and Figure 4 shown in the figure, when in use, by opening a first oil inlet hole 22 and a second oil inlet hole 24 at the front end of the valve body 3, the first oil inlet hole 22, the second oil inlet hole 24 and the inside of the valve body 3 are connected and communicated, so that the valve stem 13 can maintain lubrication, reduce the resistance between the valve stem 13 and the valve body 3, and thus provide support for the accuracy of the butterfly valve.
[0035] Working principle: When the present utility model is in use, first, by manually rotating the first handle 14, the first handle 14 drives the valve stem 13 to rotate. The top end of the valve stem 13 is fixedly connected with a threaded rod 15, and the outer contour of the threaded rod 15 matches the thread groove 16 at the bottom side of the output end of the electric actuator 1, so as to pull the valve stem 13 out of the inside of the valve body 3 downward, thereby realizing the quick replacement of the valve plate 5. Secondly, the electric multi-lobe expansion butterfly valve is mostly used for precise flow control. When large granular objects such as sand and gravel appear in the feed, it is easy to cause blockage of the valve plate 5, thus affecting the accuracy of the feed. By installing a filter pipe 17 at the front end of the valve body 3 and installing a filter box 19 inside the filter pipe 17, effective control of the feed size can be achieved. When the equipment has been used for a period of time, the filter box 19 can be pulled out through the second handle 21, thereby realizing the cleaning and quick replacement of the filter screen 20. At the same time, by opening a first oil inlet hole 22 and a second oil inlet hole 24 at the front end of the valve body 3, the first oil inlet hole 22, the second oil inlet hole 24 and the inside of the valve body 3 are connected and communicated, so that the valve stem 13 can maintain lubrication, reduce the resistance between the valve stem 13 and the valve body 3, and thus provide support for the accuracy of the butterfly valve.
[0036] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.
Claims
1. An electric multi - flap expansion butterfly valve facilitating valve plate replacement, comprising an electric actuator (1), characterized in that: A gas box (2) is fixedly connected to the front end of the electric actuator (1). An air outlet hole (10) is opened at the top of the gas box (2). A valve body (3) is installed at the bottom end of the electric actuator (1). An air inlet hole (11) is opened on the left side of the valve body (3). A hose (12) is movably connected between the air outlet hole (10) and the air inlet hole (11). A sealing ring (4) is installed inside the valve body (3). An upper support packing (8) is installed inside the valve body (3). A lower support packing (9) is installed below the upper support packing (8). A structure facilitating replacement is arranged inside the sealing ring (4). The structure facilitating replacement includes a valve rod (13). The valve rod (13) is movably connected inside the valve body (3). A threaded rod (15) is fixedly connected to the top end of the valve rod (13). A first handle (14) is fixedly connected to the bottom end of the valve rod (13). A valve plate (5) is sleeved outside the valve rod (13). A first fixing hole (6) is opened on the upper side of the front end of the valve plate (5). A second fixing hole (7) is opened on the lower side of the front end of the valve plate (5). A threaded groove (16) is opened at the bottom end of the output end of the electric actuator (1).
2. The electric multi-lobe expansion butterfly valve facilitating valve plate replacement according to claim 1, characterized in that: The sizes of the threaded rod (15) and the threaded groove (16) are matched. The outer diameter of the valve rod (13) is matched with the inner diameters of the upper support packing (8) and the lower support packing (9).
3. The electric multi-lobe expansion butterfly valve facilitating valve plate replacement according to claim 1, wherein: The inner contour of the sealing ring (4) is matched with the outer contour of the valve plate (5). The outer contour of the sealing ring (4) is matched with the inner contour of the valve body (3).
4. The electric multi-lobe expansion butterfly valve facilitating valve plate replacement according to claim 1, characterized in that: The air outlet hole (10), the air inlet hole (11), and the inside of the hose (12) are connected in communication. The valve plate (5) and the valve rod (13) can be fixed through the first fixing hole (6) and the second fixing hole (7).
5. The electric multi-lobe expansion butterfly valve according to claim 1, which is convenient for replacing the valve plate, is characterized in that: A filter pipe (17) is installed at the front end of the valve body (3). A fixing ring (18) is welded inside the filter pipe (17). A filter box (19) is movably connected inside the filter pipe (17). A filter screen (20) is installed inside the filter box (19). A second handle (21) is movably connected to the left side inside the filter box (19).
6. The electric multi-lobe expansion butterfly valve facilitating valve plate replacement according to claim 5, wherein: The outer contour of the filter box (19) is matched with the inner contour of the fixing ring (18). The filter box (19) can be drawn out of the filter pipe (17) through the second handle (21).
7. The electric multi-lobe expansion butterfly valve facilitating valve plate replacement according to claim 1, wherein: A first oil inlet hole (22) is opened on the upper side of the front end of the valve body (3). A first oil cap (23) is sleeved outside the first oil inlet hole (22). A second oil inlet hole (24) is opened on the lower side of the front end of the valve body (3). A second oil cap (25) is sleeved outside the second oil inlet hole (24).
8. The electric multi-lobe expansion butterfly valve facilitating valve plate replacement according to claim 7, characterized in that: The outer diameter of the first oil inlet hole (22) is matched with the inner diameter of the first oil cap (23). The outer diameter of the second oil inlet hole (24) is matched with the inner diameter of the second oil cap (25).