Anti-blocking electric butterfly valve

Abstract

The utility model relates to the technical field of electric butterfly valves, and provides an anti-blocking type electric butterfly valve which comprises a butterfly valve body, the butterfly valve body comprises a valve body, a butterfly plate is rotationally connected into the valve body through a driving mechanism, the outer side wall of the butterfly plate is attached to the inner side wall of the valve body, and pipelines are installed at the two ends of the valve body. One end of the sleeve is fixedly connected with one end of the valve body, the outer side wall of the arc-shaped filter plate is in sliding fit with the inner side wall of the sleeve and used for blocking impurities in fluid, and the clamping assemblies are arranged on the periphery of the arc-shaped filter plate and used for fixing the arc-shaped filter plate to the inner side wall of the sleeve. The extrusion assembly is arranged on the side wall of the sleeve and used for extruding the clamping assembly. By means of the technical scheme, the technical problems that in the prior art, a filter screen is difficult to replace and clean due to the fact that the filter screen is difficult to disassemble, and the service life of the filter screen is shortened are solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of electric butterfly valve technology, and more specifically, to an anti-clogging electric butterfly valve. Background Technology

[0002] An electric butterfly valve is a type of valve that uses a circular butterfly plate as the opening and closing element, which rotates with the valve stem to open, close, and regulate the fluid passage. It is used to cut off, connect, and regulate the medium in the pipeline. It has good fluid control characteristics and sealing performance. When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the resistance of the medium flowing through the valve body. Therefore, the pressure drop generated by the valve is very small, so it has good flow control characteristics. Currently, electric butterfly valves are widely used in various fields.

[0003] In existing technology, the butterfly plate of a butterfly valve is installed in the diameter direction of the pipeline. Inside the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis. When it rotates to 90 degrees, the valve is fully open. However, when some fluid carrying impurities passes through the electric butterfly valve, some impurities remain inside the electric butterfly valve. Over time, this accumulation will affect the flow of the electric butterfly valve and reduce its flowability. According to a search, Chinese patent with publication number CN221824487U discloses an anti-clogging electric butterfly valve, which uses filter screen A and filter screen B to form an impurity filtration system to filter impurities carried by the fluid in the pipeline at the bottom of the main body, and then discharges them from the drain port. However, filter screens A and B are in the pipeline for a long time to filter impurities and are difficult to disassemble. This makes it difficult to replace and clean the filter screens and reduces their service life. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide an anti-clogging electric butterfly valve, which avoids the technical problem in the prior art that the filter screen is difficult to disassemble, making it difficult to replace and clean the filter screen, and reducing the service life of the filter screen.

[0005] According to one aspect, at least one embodiment of this disclosure provides an anti-clogging electric butterfly valve, including a butterfly valve body, the butterfly valve body including a valve body, a butterfly plate rotatably connected to the valve body via a drive mechanism, the outer side wall of the butterfly plate fitting against the inner side wall of the valve body, and pipes installed at both ends of the valve body, further comprising:

[0006] A sleeve, one end of which is fixedly connected to one end of the valve body;

[0007] An arc-shaped filter plate, wherein the outer wall of the arc-shaped filter plate slides in conjunction with the inner wall of the sleeve, for blocking impurities in the fluid;

[0008] Multiple sets of snap-fit ​​components are arranged around the arc-shaped filter plate to fix the arc-shaped filter plate to the inner wall of the sleeve.

[0009] A compression assembly is disposed on the side wall of the sleeve and is used to compress the snap-fit ​​assembly.

[0010] Preferably, the snap-fit ​​assembly includes:

[0011] Spring 1, the sleeve has multiple through holes, and one end of spring 1 is fixedly connected to the inner bottom wall of the through holes;

[0012] A limiting seat, one end of which is fixedly connected to the other end of the spring;

[0013] A limiting hole is provided on the inner side wall of the sleeve corresponding to the limiting seat.

[0014] Preferably, the extrusion assembly includes:

[0015] Multiple fixing plates, one end of which is fixedly connected to the outer wall of the sleeve, and a movable cavity is formed on the fixing plate;

[0016] An extrusion plate, wherein the extrusion plate is disposed within the movable cavity and slides within the movable cavity;

[0017] Multiple springs are provided, one end of which is fixedly connected to one end of the extrusion plate, and the other end of which is fixedly connected to the inner bottom wall of the moving cavity.

[0018] An extrusion rod, one end of which is fixedly connected to one end of the extrusion plate, and the other end of which penetrates the outer wall of the sleeve and extends into the limiting hole.

[0019] Furthermore, the inner wall of the pipe is provided with multiple grooves that cooperate with the fixing plate.

[0020] In order to remove some impurities from the arc-shaped filter plate during the rotation of the disc plate, a plurality of soft brushes are fixedly connected to the outer wall of the disc plate.

[0021] To facilitate thorough cleaning of the arc-shaped filter plate by the soft brush, preferably, the butterfly plate is in contact with one end of the arc-shaped filter plate during rotation.

[0022] In order to enable the other end of the limiting seat to slide and engage with the inner wall of the sleeve, more preferably, the other end of the limiting seat is arc-shaped and fits against the inner wall of the sleeve.

[0023] To prevent fluid in the pipe from overflowing through the limiting hole, preferably, a sealing ring is fitted on the outer wall of the limiting seat.

[0024] In order to limit the position of the limiting seat, preferably, the cross-sectional area of ​​the pressing rod is smaller than the cross-sectional area of ​​the limiting hole.

[0025] To remove impurities from the inner wall of the sleeve during the removal of the arc-shaped filter plate, it is preferable that a scraper is fixedly connected to the other end of the arc-shaped filter plate.

[0026] The beneficial effects of the embodiments disclosed herein are as follows:

[0027] 1. In this disclosure, a snap-fit ​​assembly and a squeezing assembly are provided to cooperate with the arc-shaped filter plate. The arc-shaped filter plate is slid into the sleeve. When the limiting seat moves to the corresponding limiting hole, spring one pushes the limiting seat into the limiting hole, thus fixing the arc-shaped filter plate in the sleeve. When it is necessary to remove the arc-shaped filter plate, the squeezing plate is squeezed and moves toward the squeezing rod. Spring two retracts, the squeezing plate pushes the squeezing rod to move and pushes the limiting seat out of the limiting hole. Then the arc-shaped filter plate is pulled out. At the same time as the arc-shaped filter plate is pulled out, the scraper scrapes off the impurities on the inner wall of the sleeve. In this way, the arc-shaped filter plate is removed from the sleeve, which is convenient for subsequent cleaning or replacement.

[0028] 2. In this disclosure, multiple soft brushes are fixedly connected to the outer wall of the butterfly plate. When the butterfly valve rotates, the soft brushes on the outer wall of the butterfly valve clean the inner wall of the valve body and the arc-shaped filter plate, scraping away some impurities. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0030] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present disclosure;

[0031] Figure 2 This is a schematic diagram of the butterfly valve body in one embodiment of the present disclosure;

[0032] Figure 3 This is an exploded view of the pipe and sleeve in one embodiment of the present disclosure;

[0033] Figure 4 This is an exploded view of the fit between the butterfly plate, pipe, and sleeve in one embodiment of this disclosure;

[0034] Figure 5 This is a partial structural cross-sectional view of the sleeve, arc-shaped filter plate, snap-fit ​​assembly, and extrusion assembly in one embodiment of this disclosure;

[0035] Figure 6 For one embodiment of this disclosure Figure 5 Enlarged view of the local structure at point A;

[0036] Figure 7 This is a schematic diagram of the structure of the arc-shaped filter plate in the sleeve in one embodiment of the present disclosure.

[0037] In the diagram: 1. Butterfly valve body; 2. Valve body; 3. Drive mechanism; 4. Butterfly plate; 5. Pipeline; 6. Sleeve; 7. Arc-shaped filter plate; 8. Spring 1; 9. Through hole; 10. Limit seat; 11. Limit hole; 12. Fixing plate; 13. Moving cavity; 14. Extrusion plate; 15. Spring 2; 16. Extrusion rod; 17. Slide groove; 18. Soft brush; 19. Sealing ring; 20. Scraper. Detailed Implementation

[0038] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0039] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0040] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0041] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0043] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0044] like Figures 1-7 As shown, it illustrates an anti-clogging electric butterfly valve in one embodiment of the present disclosure, including a butterfly valve body 1, the butterfly valve body 1 including a valve body 2, a butterfly plate 4 rotatably connected inside the valve body 2 via a drive mechanism 3, the outer side wall of the butterfly plate 4 fitting against the inner side wall of the valve body 2, pipes 5 installed at both ends of the valve body 2, and also including a sleeve 6, an arc-shaped filter plate 7, multiple sets of snap-fit ​​components and a squeezing component, one end of the sleeve 6 being fixedly connected to one end of the valve body 2;

[0045] The outer wall of the arc-shaped filter plate 7 slides in conjunction with the inner wall of the sleeve 6 to block impurities in the fluid. In order to remove some impurities on the arc-shaped filter plate 7 during the rotation of the butterfly plate 4, multiple soft brushes 18 are fixedly connected to the outer wall of the butterfly plate 4. In order to facilitate the soft brushes 18 to fully clean the arc-shaped filter plate 7, the butterfly plate 4 is in contact with one end of the arc-shaped filter plate 7 during the rotation. The soft brushes 18 have strong extensibility and elasticity and are easy to compress. When the butterfly plate 4 rotates, the soft brushes 18 extend and clean the inner wall of the valve body 2 and one end face of the arc-shaped filter plate 7. In order to scrape off impurities on the inner wall of the sleeve 6 during the removal of the arc-shaped filter plate 7, a scraper 20 is fixedly connected to the other end of the arc-shaped filter plate 7.

[0046] A snap-fit ​​assembly is disposed around the arc-shaped filter plate 7 to fix the arc-shaped filter plate 7 to the inner wall of the sleeve 6. The snap-fit ​​assembly includes a spring 8, a limiting seat 10, and a limiting hole 11. The sleeve 6 has multiple through holes 9. One end of the spring 8 is fixedly connected to the inner bottom wall of the through hole 9, and one end of the limiting seat 10 is fixedly connected to the other end of the spring 8. In order to allow the other end of the limiting seat 10 to slide against the inner wall of the sleeve 6, the other end of the limiting seat 10 is arc-shaped and fits against the inner wall of the sleeve 6. To prevent the fluid in the pipe 5 from overflowing through the limiting hole 11, a sealing hole is fitted on the outer wall of the limiting seat 10. The sleeve 6, corresponding to the limiting seat 10, has a limiting hole 11 on its inner side wall. By placing the arc-shaped filter plate 7 into the sleeve 6, the multiple limiting seats 10 compress the spring 8, causing the multiple limiting seats 10 to enter the through hole 9. In this way, the end faces of the arc-shaped filter plate 7 and the multiple limiting seats 10 are in contact with the inner side wall of the sleeve 6, making it easy to slide the arc-shaped filter plate 7 into the sleeve 6. When the limiting seat 10 moves to the corresponding limiting hole 11, the spring 8 pushes the limiting seat 10 into the limiting hole 11, thus fixing the arc-shaped filter plate 7 in the sleeve 6. The sealing ring 19 is provided to maintain the sealing of the sleeve 6.

[0047] The extrusion assembly is mounted on the side wall of the sleeve 6 and is used to extrude and snap-fit ​​the assembly. The extrusion assembly includes multiple fixed plates 12, an extrusion plate 14, multiple springs 15, and an extrusion rod 16. One end of the fixed plate 12 is fixedly connected to the outer side wall of the sleeve 6. Multiple sliding grooves 17 that mate with the fixed plate 12 are provided on the inner side wall of the pipe 5. A moving cavity 13 is provided on the fixed plate 12. The extrusion plate 14 is disposed in the moving cavity 13 and slides with the moving cavity 13. One end of the spring 15 is fixedly connected to one end of the extrusion plate 14, and the other end of the spring 15 is fixed to the inner bottom wall of the moving cavity 13. The extrusion rod 16 is fixedly connected to one end of the extrusion plate 14. The other end of the extrusion rod 16 passes through the outer wall of the sleeve 6 and extends into the limiting hole 11. In order to limit the limiting seat 10, the cross-sectional area of ​​the extrusion rod 16 is smaller than the cross-sectional area of ​​the limiting hole 11. By extruding the extrusion plate 14, the extrusion plate 14 moves toward the extrusion rod 16. The spring 15 contracts, the extrusion plate 14 pushes the extrusion rod 16 to move and pushes the limiting seat 10 out of the limiting hole 11. Then the arc-shaped filter plate 7 is pulled out. In this way, the arc-shaped filter plate 7 is removed from the sleeve 6 for easy cleaning or replacement.

[0048] Working principle: Before using the electric butterfly valve, the arc-shaped filter plate 7, along with the snap-fit ​​assembly, is inserted into the sleeve 6, ensuring that the end faces of the arc-shaped filter plate 7 and the multiple limit seats 10 are in contact with the inner wall of the sleeve 6. This facilitates the sliding of the arc-shaped filter plate 7 into the sleeve 6. When the limit seat 10 moves to its corresponding limit hole 11, the spring 8 pushes the limit seat 10 into the limit hole 11, thus fixing the arc-shaped filter plate 7 inside the sleeve 6. The pipe 5 is then connected to the fixing plate 12 via the sliding groove 17, allowing it to slide on the outer wall of the sleeve 6. Finally, it is fixed to the valve body 2. When the butterfly valve rotates, the butterfly valve... The soft brush 18 on the outer wall cleans the inner wall of the valve body 2 and the arc-shaped filter plate 7, scraping away some impurities. When there is no more fluid flow in the pipe 5, the pipe 5 is removed from the valve body 2. By squeezing the squeezing plate 14, the squeezing plate 14 moves toward the squeezing rod 16, the spring 15 contracts, the squeezing plate 14 pushes the squeezing rod 16 to move and pushes the limit seat 10 out of the limit hole 11. Then the arc-shaped filter plate 7 is pulled out. At the same time as the arc-shaped filter plate 7 is pulled out, the scraper 20 scrapes away the impurities on the inner wall of the sleeve 6. In this way, the arc-shaped filter plate 7 is removed from the sleeve 6, which is convenient for subsequent cleaning or replacement.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. An anti-clogging electric butterfly valve, comprising a butterfly valve body (1), wherein the butterfly valve body (1) includes a valve body (2), a butterfly plate (4) is rotatably connected inside the valve body (2) via a drive mechanism (3), the outer side wall of the butterfly plate (4) is in contact with the inner side wall of the valve body (2), and pipes (5) are installed at both ends of the valve body (2), characterized in that, Also includes: Sleeve (6), one end of which is fixedly connected to one end of valve body (2); Arc-shaped filter plate (7), the outer side wall of the arc-shaped filter plate (7) is slidably engaged with the inner side wall of the sleeve (6) to block impurities in the fluid; Multiple sets of snap-fit ​​components are arranged around the arc-shaped filter plate (7) to fix the arc-shaped filter plate (7) on the inner wall of the sleeve (6); A compression assembly is disposed on the side wall of the sleeve (6) for compressing the snap-fit ​​assembly.

2. The anti-clogging electric butterfly valve according to claim 1, characterized in that, The snap-fit ​​assembly includes: Spring 1 (8), the sleeve (6) has multiple through holes (9), one end of spring 1 (8) is fixedly connected to the inner bottom wall of the through hole (9); A limiting seat (10), one end of which is fixedly connected to the other end of the spring (8); The limiting hole (11) is provided on the inner side wall of the sleeve (6) corresponding to the limiting seat (10).

3. The anti-clogging electric butterfly valve according to claim 2, characterized in that, The extrusion assembly includes: Multiple fixing plates (12), one end of which is fixedly connected to the outer wall of the sleeve (6), and a movable cavity (13) is provided on the fixing plate (12). An extrusion plate (14) is disposed within the moving cavity (13) and slides in cooperation with the moving cavity (13); Multiple springs (15), one end of which is fixedly connected to one end of the extrusion plate (14), and the other end of which is fixedly connected to the inner bottom wall of the moving cavity (13); The extrusion rod (16) has one end fixedly connected to one end of the extrusion plate (14), and the other end of the extrusion rod (16) passes through the outer wall of the sleeve (6) and extends into the limiting hole (11).

4. The anti-clogging electric butterfly valve according to claim 3, characterized in that, The inner wall of the pipe (5) is provided with multiple grooves (17) that cooperate with the fixed plate (12).

5. The anti-clogging electric butterfly valve according to claim 1, characterized in that, Multiple soft brushes (18) are fixedly connected to the outer wall of the butterfly plate (4).

6. The anti-clogging electric butterfly valve according to claim 1, characterized in that, The butterfly plate (4) is in contact with one end of the arc-shaped filter plate (7) during rotation.

7. The anti-clogging electric butterfly valve according to claim 2, characterized in that, The other end of the limiting seat (10) is arc-shaped and fits against the inner wall of the sleeve (6).

8. The anti-clogging electric butterfly valve according to claim 2, characterized in that, A sealing ring (19) is fitted on the outer wall of the limiting seat (10).

9. The anti-clogging electric butterfly valve according to claim 3, characterized in that, The cross-sectional area of ​​the extrusion rod (16) is smaller than the cross-sectional area of ​​the limiting hole (11).

10. The anti-clogging electric butterfly valve according to claim 1, characterized in that, A scraper (20) is fixedly connected to the other end of the arc-shaped filter plate (7).

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