Butterfly valve capable of being operated at multiple angles

Abstract

The invention discloses a butterfly valve capable of performing multi-angle operation, which relates to the technical field of valves, and comprises an electric actuator, a valve rod, a valve rod and a valve rod, the valve seat is mounted at the bottom of the electric actuator and is used for fixing internal components of the valve; the valve plate assembly is located in the valve seat and used for controlling a medium channel switch in the valve seat; the valve rod assembly is connected with the interior of the valve plate assembly; when the butterfly valve is closed, the electric actuator drives the valve rod body to rotate, the valve rod body drives the guide block to rotate by means of interaction of the inclined face of the guide groove in the bottom of the valve rod body and the inclined face of the guide block, then the two valve plate bodies which are arranged in a staggered mode are driven to rotate, the edges of the valve plates are tightly attached to the arc-shaped check block in the valve seat, and preliminary sealing is achieved. As gaps are designed between the two ends of the valve plate and the inner wall of the valve seat, friction between the valve plate and the inner wall of the valve seat is effectively reduced, and the service life of the valve plate is remarkably prolonged.

Description

Technical Field

[0001] This invention relates to the field of valve technology, specifically to a butterfly valve capable of multi-angle operation. Background Technology

[0002] In fluid control systems, the main function of a butterfly valve is to open and close the medium passage by controlling the rotation of the valve plate, thereby regulating the flow rate and pressure of the fluid.

[0003] However, existing butterfly valve technology still has some shortcomings in practical applications. When a traditional butterfly valve is closed, the seal between the valve plate and the inner wall of the valve seat is mainly achieved by the tight fit between the valve plate and the inner wall of the valve seat.

[0004] While this sealing method can meet basic sealing requirements to a certain extent, significant friction exists between the valve plate and the inner wall of the valve seat during actual use. This friction not only leads to wear on the valve plate, reducing its service life, but may also affect the valve's sealing performance.

[0005] Furthermore, due to the limited contact area between the valve plate and the inner wall of the valve seat, the sealing effect is often less than ideal. In some applications with high sealing performance requirements, traditional butterfly valves may not be able to meet the stringent sealing requirements.

[0006] Therefore, the present invention aims to provide a butterfly valve that can be operated at multiple angles. Through innovative structural design and optimized sealing mechanism, it effectively reduces the friction between the valve plate and the inner wall of the valve seat, thereby improving the sealing performance and service life of the valve. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a butterfly valve that can be operated at multiple angles, solving the problems of excessive wear and limited sealing surface in existing valves mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a butterfly valve capable of multi-angle operation, comprising: An electric actuator, connected to an external controller, is used to control valve opening and closing. Also includes: A valve seat, mounted on the bottom of the electric actuator, is used to secure internal valve components. A valve plate assembly, located inside the valve seat, is used to control the opening and closing of the internal medium channel of the valve seat; The valve stem assembly is internally connected to the valve plate assembly and drives the valve plate assembly to switch by cooperating with the electric actuator switch. An adjustment assembly, installed at the bottom of the valve seat, is used to adjust the valve stem assembly; A connecting component is installed at both ends of the valve seat assembly for docking with external pipelines.

[0009] Preferably, the valve seat includes a valve body with a media flow channel inside. Arc-shaped blocks are provided on both sides of the inner wall of the valve body, and these arc-shaped blocks are integral with the valve body. Two arc-shaped blocks are provided, staggered in arrangement. When the valve is closed, the valve plate body can tightly fit against the arc-shaped blocks, achieving initial sealing. Because the arc-shaped blocks are integral with the valve body, the overall structural stability is enhanced, ensuring that the sealing effect will not be affected by component loosening during long-term use. Simultaneously, the staggered distribution of the two arc-shaped blocks provides more stable support and limiting effect for the valve plate body, allowing for more precise contact between the valve plate body and the arc-shaped blocks during rotation, further improving the valve's sealing performance and reliability, and effectively preventing media leakage.

[0010] Preferably, the valve plate assembly includes two valve plate bodies. Each valve plate body has a fixing block installed on its surface by bolts. A valve stem groove is formed on the surface of the valve plate body, and an elastic block is installed inside the valve stem groove. The elastic block is an arc-shaped elastic metal, and the top of the fixing block has a sloping structure. When the valve is closed, the two elastic elements are compressed. When the valve plate body is opened, the two valve plate bodies can be reset by means of the elasticity of the elastic elements.

[0011] Preferably, the two valve plate bodies are staggered. Each valve plate body has a groove on its surface, and a slider is disposed within the groove. One end of the slider is connected to the other valve plate body via a fixing bolt. The two valve plates slide in contact with each other and fit tightly. One end of the slider has a protruding limiting structure that matches a groove on the surface of the valve plate body. This design allows the valve plate body to better fit against the arc-shaped stop block within the valve seat when closed, increasing the sealing area, reducing the possibility of media leakage, and also helping to disperse the pressure of the media on the valve plate, reducing valve plate wear. The groove on the surface of the valve plate body, with a slider inside, and one end connected to the other valve plate body via a fixing bolt, allows for sliding contact and a tight fit between the two valve plate bodies.

[0012] Preferably, the valve stem assembly includes a rotating block with staggered protruding structures on both sides. The bottom of the protruding structures on both sides of the rotating block is sloped. A limit block and a guide block are provided on the top of the rotating block. The top surface of the rotating block is in close contact with the bottom of the valve stem body. One top end of the valve stem body is connected to an electric actuator. One bottom end of the valve stem has a guide groove and a limit groove. A metal washer and a rubber washer are provided on the bottom of the rotating block. The sloped bottom surfaces of the protruding structures on both sides of the rotating block are in contact with the sloped top surface of the fixed block. The design of the valve stem assembly, through the cooperation between the rotating block and the valve stem body, achieves efficient sealing and low-friction operation of the valve. The staggered protruding structures on both sides of the rotating block, with their sloped bottoms, allow the rotating block to be in close contact with the sloped top surface of the fixed block. Thus, when the valve stem body rotates, the interaction of the sloped surfaces pushes the valve plate body to rotate and position precisely, realizing the opening and closing operation of the valve. Meanwhile, the limiting block and guide block set at the top of the rotating block cooperate with the guide groove and limiting groove at the bottom of the valve stem body, further ensuring the stability and accuracy of the valve stem assembly during movement, preventing the valve stem from shifting or jamming during rotation, and improving the operational reliability of the valve.

[0013] Preferably, two guide blocks are provided, each with a beveled top end. The guide blocks are in close contact with the surface of the valve plate body, and their shapes match those of the guide grooves, which are also beveled at the top. Two limiting blocks are provided, and these two limiting blocks slide in contact with the surface of the limiting grooves. The beveled top of the guide groove, combined with the beveled top of the guide blocks, further optimizes the motion characteristics of the valve stem assembly. When the valve stem body rotates, the beveled top of the guide groove guides the guide blocks to move accordingly, allowing the valve plate body to more smoothly engage with the arc-shaped stop block within the valve seat, achieving a reliable seal.

[0014] Preferably, the adjusting assembly includes a base located at the bottom of the valve seat. The base has a slot inside, and four adjusting bolts are inserted into the slot. The four adjusting bolts are threaded to the bottom of the valve seat. A top rod is fixedly connected inside the base. One end of the top rod is inserted into the rotating block. A sealing ring is provided on the contact surface between the top rod and the valve body. By rotating the adjusting bolts, the base can drive the top rod to move upward. The annular protrusion structure on the outer wall of the top rod can squeeze the gasket, thereby facilitating the adjustment of the gasket's tightness.

[0015] Preferably, the connecting assembly includes a first flange with a groove inside, which engages with a second flange. The second flange is fixedly connected to a valve seat. A sealing ring is provided on the contact surface between the first and second flanges. The second flange is threadedly connected to a set bolt. One end of the set bolt abuts against the outer wall surface of the first flange. The groove allows them to be connected and rotated, thereby adjusting the valve angle and enabling multi-angle operation. By tightening the set bolt, one end of the set bolt abuts against the outer wall surface of the first flange, thus fixing the valve.

[0016] This invention provides a butterfly valve capable of multi-angle operation. It offers the following advantages: During the closing operation of this butterfly valve, the electric actuator drives the valve stem body to rotate. The valve stem body, through the interaction of the inclined surface of its bottom guide groove and the inclined surface of the guide block, causes the guide block to rotate, which in turn drives the two staggered valve plate bodies to rotate. This causes the valve plate edges to fit tightly against the arc-shaped stop block inside the valve seat, achieving initial sealing. Because of the gaps designed between the two ends of the valve plate and the inner wall of the valve seat, friction between the valve plate and the inner wall of the valve seat is effectively reduced, significantly extending the service life of the valve plate. After the valve plate body fits against the arc-shaped stop block, the valve plate body stops rotating due to the limiting effect of the arc-shaped stop block. At this time, the valve stem body continues to rotate, and the inclined surface of its bottom guide groove forces the inclined surface of the rotating block to move downwards. During the downward movement, the rotating block squeezes the rubber gasket, and simultaneously, through the bottom inclined surfaces of the protruding structures on both sides of the rotating block, it pushes the two fixed blocks to move in opposite directions. The fixed blocks drive the valve plate bodies to move in opposite directions, causing one end of the valve plate body to press against the inner wall of the valve seat, achieving further sealing and significantly improving the valve's sealing performance. As the valve stem body continues to rotate, when the bottom of the guide groove contacts the top of the guide block, the limiting groove contacts the side wall of the limiting block. The valve stem body continues to rotate, driving the limiting block and the rotating block to rotate a second time through the limiting groove, further pushing the two valve plate bodies to fit tightly against the arc-shaped stop, thereby achieving a deeper sealing effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the valve in the open state of the present invention; Figure 3 This is a side view of the structure of the present invention; Figure 4 This is a schematic diagram of the valve stem body structure of the present invention; Figure 5 This is a schematic diagram of the push rod structure of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle; Figure 7This is a schematic diagram of the valve plate structure of the present invention; Figure 8 This is a schematic diagram of the fixing block structure of the present invention; Figure 9 This is a schematic diagram of the elastic block structure of the present invention; Figure 10 This is a schematic diagram of the cross-sectional structure of the first flange of the present invention.

[0018] In the diagram, 1. Valve seat; 101. Valve body; 102. Arc-shaped stop block; 2. Valve plate assembly; 201. Elastic block; 202. Valve plate body; 203. Fixing block; 204. Slide groove; 205. Slider; 206. Fixing bolt; 207. Valve stem groove; 3. Valve stem assembly; 301. Rotating block; 302. Limiting block; 303. Guide block; 304. Valve stem body; 305. Limiting groove; 306. Guide groove; 307. Metal washer; 308. Rubber washer; 4. Electric actuator; 5. Adjusting assembly; 501. Base; 502. Adjusting bolt; 503. Top rod; 6. Connecting assembly; 601. First flange; 602. Second flange; 603. Slot; 604. Set bolt. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: Please refer to Figure 1-10 This invention provides a technical solution: a butterfly valve capable of multi-angle operation, comprising: an electric actuator 4, signal-connected to an external controller for controlling valve opening and closing; further comprising: a valve seat 1, mounted on the bottom of the electric actuator 4 for fixing internal valve components; a valve plate assembly 2, located inside the valve seat 1 for controlling the opening and closing of the internal medium channel of the valve seat 1; a valve stem assembly 3, internally connected to the valve plate assembly 2, which drives the valve plate assembly 2 to open and close by cooperating with the electric actuator 4; an adjusting assembly 5, mounted on the bottom of the valve seat 1 for adjusting the valve stem assembly 3; and a connecting assembly 6, mounted on both ends of the valve seat 1 assembly for connecting to external pipelines. In this embodiment, the multi-angle operable butterfly valve achieves efficient sealing and low-friction operation through the cooperation of the valve plate assembly 2 and the valve stem assembly 3. Driven by the valve stem assembly 3, the valve plate assembly 2 can precisely control the opening and closing of the media passage. When the valve is closed, the valve plate assembly 2 fits tightly against the inner wall of the valve seat 1, and the fine adjustment of the valve stem assembly 3 further optimizes the sealing effect between the valve plate and the valve seat 1. This design not only effectively reduces friction between the valve plate and the inner wall of the valve seat 1, reducing valve plate wear, but also extends service life.

[0021] Example 2: Please refer to Figure 1-10 This invention provides a technical solution: A valve seat 1 includes a valve body 101, with a media flow channel inside. Arc-shaped blocks 102 are provided on both sides of the inner wall of the valve body 101. The arc-shaped blocks 102 are integral with the valve body 101. Two arc-shaped blocks 102 are provided, and they are staggered. A valve plate assembly 2 includes a valve plate body 202, with two valve plate bodies 202. Fixing blocks 203 are bolted to the surface of each valve plate body 202. A valve stem groove 207 is formed on the surface, and an elastic block 201 is installed inside the valve stem groove 207. The elastic block 201 is an arc-shaped elastic metal, and the top of the fixing block 203 has a sloping structure. Two valve plate bodies 202 are distributed in a staggered manner. A sliding groove 204 is provided on the surface of the valve plate body 202, and a slider 205 is provided inside the sliding groove 204. One end of the slider 205 is connected to the other valve plate body 202 by a fixing bolt 206. The two valve plates slide in contact with each other and fit tightly. One end of the slider 205 is provided with a protruding limiting structure. The structure includes a slider 205 with a protruding structure at one end that matches a groove on the surface of the valve plate body 202; the valve stem assembly 3 includes a rotating block 301 with protruding structures distributed in a staggered manner on both sides of the rotating block 301, the bottom of the protruding structures on both sides of the rotating block 301 being sloping, a limit block 302 and a guide block 303 being provided on the top of the rotating block 301, the top surface of the rotating block 301 being in close contact with the bottom of the valve stem body 304, one end of the top of the valve stem body 304 being connected to the electric actuator 4, and a guide groove 306 and a limit groove 303 being provided at the bottom end of the valve stem. 5. The bottom of the rotating block 301 is provided with a metal washer 307 and a rubber washer 308. The bottom slope of the protruding structure on both sides of the rotating block 301 is in contact with the top slope of the fixed block 203. Two guide blocks 303 are provided. One end of the top of the two guide blocks 303 is inclined. The guide blocks 303 are in close contact with the surface of the valve plate body 202. The shape of the guide blocks 303 matches the guide groove 306. The top of the guide groove 306 is inclined. Two limit blocks 302 are provided. The two limit blocks 302 slide in contact with the surface of the limit groove 305. In this embodiment, when the valve is closed, the valve stem body 304 is driven to rotate by the electric actuator 4. The valve stem body 304 can push the inclined surface of the guide block 303 through the inclined surface of the bottom guide groove 306, forcing the guide block 303 to rotate. In turn, the guide block 303 can drive the two valve plate bodies 202 to rotate, so that the edges of the two misaligned valve plates can fit with the arc-shaped stop block 102, thereby achieving a seal. Since there is a gap between the two ends of the stop block and the inner wall of the valve body 101, compared with the traditional butterfly valve, the friction between the two sides of the valve plate and the inner wall of the valve seat 1 is greatly reduced, and the service life of the valve plate is greatly extended. When the valve plate body 202 is in contact with the arc-shaped stop 102, it cannot continue to rotate due to the limiting effect of the arc-shaped stop 102. When the valve stem body 304 continues to rotate, it will force the inclined surface of the rotating block 301 to move downward through the inclined surface of the bottom guide groove 306, so that the rotating block 301 can squeeze the rubber gasket downward. At the same time, as the rotating block 301 moves downward, it can force the two fixed blocks 203 to move in opposite directions through the bottom inclined surface of the protruding structure on both sides of the rotating block 301. Then, the two fixed blocks 203 can drive the two valve plate bodies 202 to move in opposite directions respectively, so that one end of the valve plate body 202 can be squeezed against the inner wall of the valve seat 1, thereby achieving further sealing and greatly improving the sealing performance of the valve. As the valve stem body 304 rotates, when the bottom end of the guide groove 306 contacts the top end of the guide block 303, the limiting groove 305 will contact the side wall of the limiting block 302. As the valve stem body 304 continues to rotate, the limiting groove 305 can drive the limiting block 302 and the rotating block 301 to rotate a second time, thereby driving the two valve plate bodies to further fit with the arc-shaped stop block 102, further achieving a sealing effect.

[0022] Example 3: Please refer to Figure 1-10 The present invention provides a technical solution: the adjusting component 5 includes a base 501, which is located at the bottom of the valve seat 1. The base 501 has a slot inside, and adjusting bolts 502 are inserted inside the slot. There are four adjusting bolts 502, which are threaded to the bottom of the valve seat 1. A top rod 503 is fixedly connected inside the base 501, and one end of the top of the top rod 503 is inserted inside the rotating block 301. The connecting component 6 includes a first flange 601, which has a slot 603 inside. The slot 603 engages with a second flange 602. The second flange 602 is fixedly connected to the valve seat 1. A sealing ring is provided on the contact surface between the first flange 601 and the second flange 602. The second flange 602 is threadedly connected to a set bolt 604, and one end of the set bolt 604 abuts against the outer wall surface of the first flange 601. In this embodiment, rotating the adjusting bolt 502 allows the base 501 to move the top rod 503 upward. The annular protrusion on the outer wall of the top rod 503 can compress the gasket, thereby facilitating the adjustment of the gasket's tightness. By providing a first flange 601 and a second flange 602 at both ends of the valve seat 1, which are connected to each other through the slot 603 and can rotate, the valve angle can be adjusted, thus enabling multi-angle operation. By tightening the set bolt 604, one end of the set bolt 604 can abut against the outer wall of the first flange 601, thus fixing the valve.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A butterfly valve capable of multi-angle operation, comprising: The electric actuator (4) is connected to an external controller signal and is used to control the valve opening and closing; Its characteristic is that it further includes: Valve seat (1), installed at the bottom of the electric actuator (4), is used to fix the internal components of the valve; The valve plate assembly (2) is located inside the valve seat (1) and is used to control the opening and closing of the medium channel inside the valve seat (1); The valve stem assembly (3) is internally connected to the valve plate assembly (2) and drives the valve plate assembly (2) to switch by cooperating with the electric actuator (4); Adjustment component (5), installed at the bottom of valve seat (1), is used to adjust valve stem assembly (3); The connecting component (6) is installed at both ends of the valve seat (1) component and is used to connect with external pipelines.

2. The butterfly valve capable of multi-angle operation according to claim 1, characterized in that: The valve seat (1) includes a valve body (101), and a medium flow channel is provided inside the valve body (101). Arc-shaped blocks (102) are provided on both sides of the inner wall of the valve body (101). The arc-shaped blocks (102) and the valve body (101) are an integral structure. There are two arc-shaped blocks (102), and the two arc-shaped blocks (102) are distributed in a staggered manner.

3. The butterfly valve capable of multi-angle operation according to claim 2, characterized in that: The valve plate assembly (2) includes a valve plate body (202), and there are two valve plate bodies (202). The surfaces of the two valve plate bodies (202) are each bolted with a fixing block (203). A valve stem groove (207) is opened on the surface of the valve plate body (202). An elastic block (201) is installed inside the valve stem groove (207). The elastic block (201) is an arc-shaped elastic metal. The top of the fixing block (203) has a sloping structure.

4. The butterfly valve capable of multi-angle operation according to claim 3, characterized in that: The two valve plate bodies (202) are staggered. The surface of the valve plate body (202) is provided with a groove (204). A slider (205) is provided inside the groove (204). One end of the slider (205) is connected to the other valve plate body (202) by a fixing bolt (206). The two valve plates slide in contact with each other and fit tightly. One end of the slider (205) is provided with a protruding limiting structure, and the protruding structure of the slider (205) matches the groove on the surface of the valve plate body (202).

5. The butterfly valve capable of multi-angle operation according to claim 4, characterized in that: The valve stem assembly (3) includes a rotating block (301). The rotating block (301) has protruding structures distributed in a staggered manner on both sides. The bottom of the protruding structures on both sides of the rotating block (301) is sloping. The top of the rotating block (301) is provided with a limiting block (302) and a guide block (303). The top surface of the rotating block (301) is in close contact with the bottom of the valve stem body (304). One end of the top of the valve stem body (304) is connected to the electric actuator (4). One end of the bottom of the valve stem is provided with a guide groove (306) and a limiting groove (305). The bottom of the rotating block (301) is provided with a metal washer (307) and a rubber washer (308). The bottom slope of the protruding structures on both sides of the rotating block (301) is in contact with the top slope of the fixed block (203).

6. The butterfly valve capable of multi-angle operation according to claim 5, characterized in that: Two guide blocks (303) are provided, and one end of the top of the two guide blocks (303) is inclined. The guide blocks (303) are in the same shape as the guide groove (306). The top of the guide groove (306) is inclined. Two limit blocks (302) are provided, and the two limit blocks (302) slide in contact with the surface of the limit groove (305).

7. The butterfly valve capable of multi-angle operation according to claim 6, characterized in that: The adjustment assembly (5) includes a base (501) located at the bottom of the valve seat (1). The base (501) has a slot inside, and an adjustment bolt (502) is inserted inside the slot. There are four adjustment bolts (502), which are threaded to the bottom of the valve seat (1). A top rod (503) is fixedly connected inside the base (501), and one end of the top rod (503) is inserted inside the rotating block (301).

8. The butterfly valve capable of multi-angle operation according to claim 7, characterized in that: The connecting assembly (6) includes a first flange (601), which has a groove (603) inside. The groove (603) engages with a second flange (602). The second flange (602) is fixedly connected to a valve seat (1). A sealing ring is provided on the contact surface between the first flange (601) and the second flange (602). The second flange (602) is threadedly connected to a set bolt (604) on the outside. One end of the set bolt (604) abuts against the outer wall surface of the first flange (601).

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