Synchronous regulating device for double-flap valve

Abstract

The utility model provides a kind of double butterfly valve synchronous regulating device, it is related to valve technical field, the double butterfly valve synchronous regulating device includes mounting bracket, first butterfly valve, second butterfly valve and transmission component, first butterfly valve is set on mounting bracket, first butterfly valve includes first valve body and first valve rod rotationally set on first valve body, first valve hole is set on first connecting end;Second butterfly valve is set on mounting bracket, second butterfly valve includes second valve body and second valve rod rotationally set on second valve body, second valve hole is set on second connecting end;Transmission component includes the first connecting rod inserted in first valve hole and the second connecting rod inserted in second valve hole, third connecting rod is connected between first connecting rod and second connecting rod. The synchronous swing of first connecting rod and second connecting rod is driven by the movement of third connecting rod, to drive the synchronous rotation of first valve rod and second valve rod, to realize the synchronous control of first butterfly valve and second butterfly valve, improve the flow control precision and stability of entire system.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a synchronous regulating device for a double butterfly valve. Background Technology

[0002] Butterfly valves are widely used in industrial fluid control, primarily controlling the flow and control of fluids by rotating a valve plate. Due to their simple structure, small size, light weight, and ease of operation, butterfly valves are widely used in various industries such as chemical, petroleum, water supply and drainage, food, pharmaceutical, and environmental protection.

[0003] For example, patent CN206943500U discloses a three-way butterfly valve. In use, the first, second, and third connection ports of the three-way butterfly valve are connected to three pipes respectively. The flow direction of the fluid is controlled by separately controlling the opening and closing of the first and second valve bodies. The valve stem rotates by controlling the adjusting handle, which in turn rotates the valve plate, thus controlling the opening and closing of the valve. Since both the first and second valve bodies require independent operation, this not only increases the complexity of operation but also easily leads to operational errors. Utility Model Content

[0004] In view of this, this utility model proposes a dual-butterfly valve synchronous adjustment device, which can solve the problems of high operational complexity and poor system coordination caused by the individual adjustment of existing dual-butterfly valves.

[0005] The technical solution of this utility model is implemented as follows:

[0006] This utility model provides a dual-butterfly valve synchronous adjustment device, comprising:

[0007] Mounting rack;

[0008] A first butterfly valve is disposed on the mounting bracket. The first butterfly valve includes a first valve body and a first valve stem rotatably disposed on the first valve body. The portion of the first valve stem protruding from the mounting bracket is a first connecting end. A first valve hole is provided on the first connecting end along the radial direction of the first valve stem.

[0009] A second butterfly valve is mounted on the mounting bracket. The second butterfly valve includes a second valve body and a second valve stem rotatably mounted on the second valve body. The portion of the second valve stem protruding from the mounting bracket is a second connecting end, and a second valve hole is formed on the second connecting end along the radial direction of the second valve stem.

[0010] The transmission component includes a first connecting rod and a second connecting rod, wherein the first connecting rod is inserted into the first valve hole, the second connecting rod is inserted into the second valve hole, and a third connecting rod connects the first connecting rod and the second connecting rod.

[0011] Based on the above technical solutions, preferably, the first valve stem is provided with a first locking member, which is used to fix the first connecting rod.

[0012] More preferably, the first locking member is movably engaged with the first valve stem along the axial direction of the first valve stem, or the first locking member is movably engaged with the first valve stem along the radial direction of the first valve stem.

[0013] Based on the above technical solutions, preferably, the second valve stem is provided with a second locking member, which is used to fix the second connecting rod.

[0014] More preferably, the second locking member is movably engaged with the second valve stem along the axial direction of the second valve stem, or the second locking member is movably engaged with the second valve stem along the radial direction of the second valve stem.

[0015] Based on the above technical solutions, preferably, the first valve hole is radially through the first valve stem and is formed on the first valve stem; and / or the second valve hole is radially through the second valve stem and is formed on the second valve stem.

[0016] Based on the above technical solution, preferably, the first connecting rod is provided with a plurality of first connecting holes spaced apart on the side away from the first valve stem, and the third connecting rod is provided with a plurality of third connecting holes spaced apart on the side connected to the first connecting rod. The first connecting rod and the third connecting rod are detachably connected by a first mounting member, and the first mounting member cooperates with any of the first connecting holes and any of the third connecting holes.

[0017] More preferably, the second connecting rod has a plurality of second connecting holes spaced apart on the side away from the second valve stem, and the third connecting rod has a plurality of fourth connecting holes spaced apart on the side connected to the second connecting rod. The second connecting rod and the third connecting rod are detachably connected by a second mounting member, and the second mounting member cooperates with any of the second connecting holes and any of the fourth connecting holes.

[0018] Based on the above technical solutions, preferably, it also includes a first detachable component and a second detachable component, wherein the first detachable component is detachably connected to the first valve body and the mounting bracket, and the second detachable component is detachably connected to the second valve body and the mounting bracket.

[0019] Based on the above technical solutions, preferably, two first valve holes are provided on the first valve stem, and the axes of the two first valve holes are perpendicular to each other; and / or two second valve holes are provided on the second valve stem, and the axes of the two second valve holes are perpendicular to each other.

[0020] The dual-butterfly valve synchronous adjustment device of this utility model has the following advantages over the prior art:

[0021] (1) The first connecting rod is inserted into the first valve hole, the second connecting rod is inserted into the second valve hole, and the third connecting rod is connected between the first connecting rod and the second connecting rod. The movement of the third connecting rod drives the first connecting rod and the second connecting rod to swing synchronously, thereby driving the first valve rod and the second valve rod to rotate synchronously, thus realizing the synchronous control of the first butterfly valve and the second butterfly valve, improving the flow control accuracy and stability of the entire system, and solving the problem of high operation complexity and poor system coordination caused by the separate adjustment of the existing double butterfly valve;

[0022] (2) By opening multiple first valve holes on the first valve stem and multiple second valve holes on the second valve stem, the first butterfly valve and the second butterfly valve can be adjusted synchronously, opened synchronously or closed synchronously, or one of them can be opened and the other closed, or one of them can be closed and the other opened at a preset angle; or both of them can be opened and the opening angles of the two are different, and the difference in opening angle between the two is always the same during the adjustment process, etc., so as to adapt to different usage needs and improve the applicability of the device. Attached Figure Description

[0023] 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.

[0024] Figure 1 This is a schematic diagram of the overall structure of the dual-butterfly valve synchronous adjustment device of this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the double butterfly valve synchronous adjustment device of this utility model from another direction;

[0026] Figure 3 for Figure 1 Top view.

[0027] Figure label:

[0028] 1. Mounting bracket; 11. First mounting hole; 12. Second mounting hole; 2. First butterfly valve; 21. First valve body; 22. First valve stem; 23. First connecting end; 24. First valve hole; 25. First locking element; 3. Second butterfly valve; 31. Second valve body; 32. Second valve stem; 33. Second connecting end; 34. Second valve hole; 35. Second locking element; 4. Transmission component; 41. First connecting rod; 411. First connecting hole; 42. Second connecting rod; 421. Second connecting hole; 43. Third connecting rod; 431. Third connecting hole; 432. Fourth connecting hole; 44. First mounting component; 45. Second mounting component; 5. First detachable component; 6. Second detachable component. Detailed Implementation

[0029] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0030] like Figures 1 to 3 As shown, this utility model provides a dual-butterfly valve synchronous adjustment device, which includes a mounting bracket 1, a first butterfly valve 2, a second butterfly valve 3, and a transmission component 4. The first butterfly valve 2 is mounted on the mounting bracket 1 and includes a first valve body 21 and a first valve stem 22 rotatably mounted on the first valve body 21. The portion of the first valve stem 22 protruding from the mounting bracket 1 is a first connecting end 23, and a first valve hole 24 is formed on the first connecting end 23 along the radial direction of the first valve stem 22. The second butterfly valve 3 is mounted on the mounting bracket 1. On the mounting bracket 1, the second butterfly valve 3 includes a second valve body 31 and a second valve stem 32 rotatably mounted on the second valve body 31. The part of the second valve stem 32 that protrudes from the mounting bracket 1 is the second connecting end 33. A second valve hole 34 is provided on the second connecting end 33 along the radial direction of the second valve stem 32. The transmission component 4 includes a first connecting rod 41 and a second connecting rod 42. The first connecting rod 41 is inserted into the first valve hole 24, and the second connecting rod 42 is inserted into the second valve hole 34. A third connecting rod 43 is connected between the first connecting rod 41 and the second connecting rod 42.

[0031] The first connecting rod 41 is inserted into the first valve hole 24, and the second connecting rod 42 is inserted into the second valve hole 34. A third connecting rod 43 connects the first connecting rod 41 and the second connecting rod 42. The movement of the third connecting rod 43 drives the first connecting rod 41 and the second connecting rod 42 to swing synchronously, thereby driving the first valve stem 22 and the second valve stem 32 to rotate synchronously. This achieves synchronous control of the first butterfly valve 2 and the second butterfly valve 3, improving the flow control accuracy and stability of the entire system. It can solve the problems of high operational complexity and poor system coordination caused by the separate adjustment of existing dual butterfly valves. Furthermore, by inserting the first connecting rod 41 into the first valve hole 24, adjusting the insertion depth of the first connecting rod 41 can adjust the connection position of the first connecting rod 41 on the first valve stem 22, thereby adjusting the relative position of the end of the first connecting rod 41 away from the first valve stem 22. Similarly, by inserting the second connecting rod 42 into the second valve hole 34, the relative position of the end of the second connecting rod 42 away from the second valve stem 32 can be adjusted. Thus, adaptive adjustments can be made according to the position of the third connecting rod 43, or according to the position of the driving component used to drive the movement of the third connecting rod 43, ensuring the reliability and stability of the device.

[0032] The mounting bracket 1 has a first mounting hole 11 and a second mounting hole 12. The first connecting end 23 of the first valve stem 22 protrudes from the mounting bracket 1 through the first mounting hole 11, and the second connecting end 33 of the second valve stem 32 protrudes from the mounting bracket 1 through the second mounting hole 12. The size of the first mounting hole 11 is larger than the size of the first connecting end 23, and the size of the second mounting hole 12 is larger than the size of the second connecting end 33, thereby ensuring the stability of the rotation of the first valve stem 22 and the second valve stem 32. In addition, it can effectively prevent the rotation of the first connecting rod 41 from interfering with the mounting bracket 1 or the first valve body 21, and also prevent the rotation of the second connecting rod 42 from interfering with the mounting bracket 1 or the second valve body 31.

[0033] Optionally, the first mounting hole 11 and the second mounting hole 12 are opened at both ends of the mounting bracket 1. Therefore, the first butterfly valve 2 and the second butterfly valve 3 are respectively set at both ends of the mounting bracket 1 to ensure the independent movement of the first butterfly valve 2 and the second butterfly valve 3 and avoid interference between them.

[0034] In some embodiments, the first connecting rod 41 is inserted into the first valve hole 24, and the first connecting rod 41 and the first valve hole 24 can be an interference fit, thereby ensuring stability and reliability after insertion. Of course, the first connecting rod 41 and the first valve hole 24 can also be a clearance fit. The first valve stem 22 is provided with a first locking member 25, which is used to fix the first connecting rod 41. Through the fixing action of the first locking member 25, the stable connection of the first connecting rod 41 on the first valve stem 22 can be ensured, preventing the first connecting rod 41 from loosening or falling off during the adjustment process, thereby ensuring the reliability of the connection between the first butterfly valve 2 and the transmission component 4, and thus ensuring the normal operation of the entire synchronous adjustment device and extending the service life of the device.

[0035] Optionally, the first locking member 25 is movably engaged with the first valve stem 22 along the axial direction of the first valve stem 22, or the first locking member 25 is movably engaged with the first valve stem 22 along the radial direction of the first valve stem 22. During installation or maintenance, the first locking member 25 can be easily moved axially or radially to facilitate the installation or disassembly of the first connecting rod 41. This improves the operability of the device, reduces maintenance costs, and also ensures the adaptability of the device, meeting the installation and usage requirements under different working conditions.

[0036] The first locking element 25 includes a locking pin or a screw, etc. In this embodiment, the first locking element 25 is a first screw. The first screw is threaded through the first valve stem 22 and the first connecting rod 41 in sequence, thereby fixing the first connecting rod 41 and the first valve stem 22 together.

[0037] In some embodiments, the second connecting rod 42 is inserted into the second valve hole 34, and the second connecting rod 42 and the second valve hole 34 can be an interference fit, thereby ensuring stability and reliability after insertion. Alternatively, the second connecting rod 42 and the second valve hole 34 can be a clearance fit. A second locking member 35 is provided on the second valve stem 32 to fix the second connecting rod 42. The fixing action of the second locking member 35 ensures the stable connection of the second connecting rod 42 on the second valve stem 32, preventing the second connecting rod 42 from loosening or falling off during adjustment. This ensures the reliability of the connection between the second butterfly valve 3 and the transmission component 4, thereby ensuring the normal operation of the entire synchronous adjustment device and extending the service life of the device.

[0038] Optionally, the second locking member 35 is movably engaged with the second valve stem 32 along the axial direction of the second valve stem 32, or the second locking member 35 is movably engaged with the second valve stem 32 along the radial direction of the second valve stem 32. During installation or maintenance, the second locking member 35 can be easily moved axially or radially to facilitate the installation or disassembly of the second connecting rod 42. This improves the operability of the device, reduces maintenance costs, and also ensures the adaptability of the device, meeting the installation and usage requirements under different operating conditions.

[0039] The second locking member 35 includes a locking pin or a screw, etc. In this embodiment, the second locking member 35 is a second screw. The second screw is threaded through the second valve stem 32 and the second connecting rod 42 in sequence, thereby fixing the second connecting rod 42 and the second valve stem 32 together.

[0040] The first valve hole 24 is radially through the first valve stem 22; and / or the second valve hole 34 is radially through the second valve stem 32. This allows the first connecting rod 41 and the second connecting rod 42 to be more stably inserted into the first valve hole 24 and the second valve hole 34, enhancing the connection strength.

[0041] In some embodiments, two first valve holes 24 are provided on the first valve stem 22, and the axes of the two first valve holes 24 are perpendicular to each other; and / or two second valve holes 34 are provided on the second valve stem 32, and the axes of the two second valve holes 34 are perpendicular to each other. When multi-directional adjustment of the butterfly valve is required, different valve holes can be selected for connection to achieve synchronous adjustment of the butterfly valve in different directions, thereby making the adjustment directions of the first butterfly valve 2 and the second butterfly valve 3 more diversified. This multi-directional adjustment capability greatly enhances the functionality of the device, enabling it to better adapt to complex working conditions and diversified flow control needs, further improving the practicality and market competitiveness of the device. For example, when the first butterfly valve 2 and the second butterfly valve 3 are synchronously open and synchronously closed, the first connecting rod 41 is inserted into another first valve hole 24 of the first valve stem 22. At this time, when the second butterfly valve 3 is controlled to open, the first butterfly valve 2 will be controlled to close; when the second butterfly valve 3 is controlled to close, the first butterfly valve 2 will be controlled to open.

[0042] Of course, multiple first valve holes 24 can be provided on the first valve stem 22, such as three or more; and / or multiple second valve holes 34 can be provided on the second valve stem 32, such as three or more. The first valve holes 24 are spaced apart, and the distance between them can be set according to different needs. Similarly, the second valve holes 34 are spaced apart, and the distance between them can be set according to different needs. Therefore, it is possible to achieve synchronous adjustment of the first butterfly valve 2 and the second butterfly valve 3, synchronous opening or closing, or one opening and the other closing, or controlling one to close while the other opens by a preset angle; or both to open, with different opening angles, and the difference in opening angle between them remains the same during adjustment, thus adapting to more application scenarios.

[0043] like Figures 1 to 3 As shown, in some embodiments, the first connecting rod 41 has a plurality of first connecting holes 411 spaced apart on the side away from the first valve stem 22, and the third connecting rod 43 has a plurality of third connecting holes 431 spaced apart on the side connected to the first connecting rod 41. The first connecting rod 41 and the third connecting rod 43 are detachably connected by a first mounting member 44, which engages with any of the first connecting holes 411 and any of the third connecting holes 431. This detachable connection allows the connection length between the first connecting rod 41 and the third connecting rod 43 to be adjusted according to actual needs. By selecting different first connecting holes 411 and different third connecting holes 431 for connection using the first mounting member 44, the relative position between the first connecting rod 41 and the third connecting rod 43 can be changed, thereby achieving fine-tuning of the synchronous adjustment ratio between the first butterfly valve 2 and the second butterfly valve 3. This greatly improves the adjustment flexibility of the device, better meets the flow control requirements under different operating conditions, and enhances the adaptability of the device.

[0044] The first mounting component 44 can be detachably connected to any of the first connecting holes 411 and any of the third connecting holes 431 by means of a buckle, pin or bolt. In this embodiment, the first mounting component 44 is a first bolt, and the first bolt is threaded to both the first connecting hole 411 and the third connecting hole 431.

[0045] Optionally, the second connecting rod 42 has a plurality of second connecting holes 421 spaced apart on the side away from the second valve stem 32, and the third connecting rod 43 has a plurality of fourth connecting holes 432 spaced apart on the side connected to the second connecting rod 42. The second connecting rod 42 and the third connecting rod 43 are detachably connected by a second mounting member 45, which mates with any of the second connecting holes 421 and any of the fourth connecting holes 432. By selecting different second connecting holes 421 and different fourth connecting holes 432 for connection using the second mounting member 45, the relative position between the second connecting rod 42 and the third connecting rod 43 can be changed, further enhancing the flexibility and adaptability of the entire transmission component 4.

[0046] The second mounting component 45 can be detachably connected to any of the second connecting holes 421 and any of the fourth connecting holes 432 by means of a buckle, pin or bolt. In this embodiment, the second mounting component 45 is a second bolt, and the second bolt is threaded to both the second connecting hole 421 and the fourth connecting hole 432.

[0047] like Figures 1 to 3 As shown, in some embodiments, the dual-butterfly valve synchronous adjustment device further includes a first detachable component 5 and a second detachable component 6. The first detachable component 5 is detachably connected to the first valve body 21 and the mounting bracket 1, and the second detachable component 6 is detachably connected to the second valve body 31 and the mounting bracket 1. This detachable connection method makes the installation and removal of the first butterfly valve 2 and the second butterfly valve 3 more convenient and quick. When maintenance or replacement of the first butterfly valve 2 or the second butterfly valve 3 is required, it is not necessary to disassemble the entire device. The first detachable component 5 or the second detachable component 6 can be used to quickly install or remove the first butterfly valve 2 or the second butterfly valve 3, greatly reducing maintenance costs and repair time, and improving the maintainability and operability of the device.

[0048] The first detachable component 5 and the second detachable component 6 can be any component that can achieve a detachable connection, such as a snap fastener or a bolt. In this embodiment, both the first detachable component 5 and the second detachable component 6 are flanges, and the detachable connection is achieved by multiple bolts spaced apart.

[0049] In summary, the embodiments of this application provide a dual-butterfly valve synchronous adjustment device. This device connects a first connecting rod 41 to a first valve hole 24, a second connecting rod 42 to a second valve hole 34, and a third connecting rod 43 between the first connecting rod 41 and the second connecting rod 42. The movement of the third connecting rod 43 drives the synchronous swinging of the first connecting rod 41 and the second connecting rod 42, thereby driving the synchronous rotation of the first valve stem 22 and the second valve stem 32. This achieves synchronous control of the first butterfly valve 2 and the second butterfly valve 3, improving the flow control accuracy and stability of the entire system. It can solve the problems of high operational complexity and poor system coordination caused by individual adjustment of existing dual-butterfly valves.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual-butterfly valve synchronous adjustment device, characterized in that, include: Mounting bracket (1); A first butterfly valve (2) is disposed on the mounting bracket (1). The first butterfly valve (2) includes a first valve body (21) and a first valve stem (22) rotatably disposed on the first valve body (21). The portion of the first valve stem (22) protruding from the mounting bracket (1) is a first connecting end (23). A first valve hole (24) is provided on the first connecting end (23) along the radial direction of the first valve stem (22). A second butterfly valve (3) is mounted on the mounting bracket (1). The second butterfly valve (3) includes a second valve body (31) and a second valve stem (32) rotatably mounted on the second valve body (31). The portion of the second valve stem (32) protruding from the mounting bracket (1) is a second connecting end (33). A second valve hole (34) is provided on the second connecting end (33) radially along the second valve stem (32). The transmission component (4) includes a first connecting rod (41) and a second connecting rod (42). The first connecting rod (41) is inserted into the first valve hole (24), and the second connecting rod (42) is inserted into the second valve hole (34). A third connecting rod (43) is connected between the first connecting rod (41) and the second connecting rod (42).

2. The dual-butterfly valve synchronous adjustment device as described in claim 1, characterized in that: The first valve stem (22) is provided with a first locking member (25), which is used to fix the first connecting rod (41).

3. The dual-butterfly valve synchronous adjustment device as described in claim 2, characterized in that: The first locking member (25) is movably engaged with the first valve stem (22) along the axial direction of the first valve stem (22), or the first locking member (25) is movably engaged with the first valve stem (22) along the radial direction of the first valve stem (22).

4. The dual-butterfly valve synchronous adjustment device as described in claim 1, characterized in that: The second valve stem (32) is provided with a second locking member (35), which is used to fix the second connecting rod (42).

5. The dual-butterfly valve synchronous adjustment device as described in claim 4, characterized in that: The second locking member (35) is movably engaged with the second valve stem (32) along the axial direction of the second valve stem (32), or the second locking member (35) is movably engaged with the second valve stem (32) along the radial direction of the second valve stem (32).

6. The dual-butterfly valve synchronous adjustment device as described in claim 1, characterized in that: The first valve hole (24) is radially through the first valve stem (22) and is provided on the first valve stem (22); and / or the second valve hole (34) is radially through the second valve stem (32) and is provided on the second valve stem (32).

7. The dual-butterfly valve synchronous adjustment device as described in claim 1, characterized in that: The first connecting rod (41) has a plurality of first connecting holes (411) spaced apart on the side away from the first valve stem (22), and the third connecting rod (43) has a plurality of third connecting holes (431) spaced apart on the side connected to the first connecting rod (41). The first connecting rod (41) and the third connecting rod (43) are detachably connected by a first mounting member (44), and the first mounting member (44) cooperates with any of the first connecting holes (411) and any of the third connecting holes (431).

8. The dual-butterfly valve synchronous adjustment device as described in claim 7, characterized in that: The second connecting rod (42) has a plurality of second connecting holes (421) spaced apart on the side away from the second valve stem (32), and the third connecting rod (43) has a plurality of fourth connecting holes (432) spaced apart on the side connected to the second connecting rod (42). The second connecting rod (42) and the third connecting rod (43) are detachably connected by a second mounting member (45), and the second mounting member (45) cooperates with any of the second connecting holes (421) and any of the fourth connecting holes (432).

9. The dual-butterfly valve synchronous adjustment device as described in claim 1, characterized in that: It also includes a first detachable component (5) and a second detachable component (6), wherein the first detachable component (5) is detachably connected to the first valve body (21) and the mounting bracket (1), and the second detachable component (6) is detachably connected to the second valve body (31) and the mounting bracket (1).

10. The dual-butterfly valve synchronous adjustment device as described in claim 1, characterized in that: Two first valve holes (24) are provided on the first valve stem (22), and the axial directions of the two first valve holes (24) are perpendicular to each other; and / or two second valve holes (34) are provided on the second valve stem (32), and the axial directions of the two second valve holes (34) are perpendicular to each other.

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