Pipe valve

Abstract

The utility model provides a kind of pipeline valve, including annular bottom plate, annular cover plate, drive ring and multiple valve pieces;Multiple valve pieces are rotatably installed between bottom plate and cover plate, and the rotating direction of valve piece is perpendicular to material flow direction;Drive ring is rotatably installed on cover plate, and drive ring is connected with multiple valve pieces;Drive ring is configured as: when drive ring rotates forward, multiple valve pieces are synchronously driven to rotate and fold towards center to close flow channel;When drive ring reversely rotates, multiple valve pieces are synchronously driven to rotate and scatter towards outside to open flow channel.The utility model adopts the flat valve body structure formed by annular bottom plate and cover plate, and multiple valve pieces that can rotate perpendicular to material flow direction are arranged, all valve pieces are driven to move synchronously by drive ring, so that in the process of opening and closing, valve piece only rotates in the limited space between bottom plate and cover plate, and external driving configuration is simplified, the radial installation size of valve is greatly compressed, and it is suitable for installation occasions with limited space.

Description

Technical Field

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

[0002] In the production process of lithium-ion battery anode materials, graphite powder is typically transported through a pipeline system using pneumatic conveying. To enable switching and control of the material flow path, as well as to prevent crosstalk between different process units, specialized valves with excellent sealing performance need to be installed at critical locations in the conveying pipeline. The reliability of these valves directly affects the continuous stability of the production line and product quality.

[0003] Currently, various types of valves are used in powder material pipelines, with gate valves being one of the most common. The working principle of a gate valve is achieved by a gate, perpendicular to the material flow direction, moving linearly into or out of the flow channel to close or open the valve. However, this principle leads to an inherent structural defect: the radial dimension (the dimension along the gate's direction of movement) is usually much larger than the diameter of the connected pipeline. This is mainly because, when the valve is fully open, its internal flow channel must be completely unobstructed, requiring the gate to completely move out of the area covered by the pipeline's inner diameter. Therefore, sufficiently long cavities are needed at both ends of the valve body to accommodate the entire gate and its seals, resulting in a significant increase in the overall length of the valve body (i.e., the radial dimension). Furthermore, the stroke of the actuator (such as a cylinder or electric push rod) required to drive the gate and ensure sealing force further increases the radial space required by the valve.

[0004] This large radial dimension makes gate valves difficult to use in space-constrained installations (such as between multi-layer pipe supports or in densely packed workshops), which not only makes installation inconvenient but may also affect the compactness of the overall pipeline layout.

[0005] Therefore, there is an urgent need in the field for a compact pipeline valve that significantly reduces its radial installation dimensions to meet the increasing space requirements of modern production lines. Utility Model Content

[0006] This utility model proposes a pipeline valve that solves the problems of large radial installation dimensions of gate valves in the prior art, making them unsuitable for space-constrained installation occasions.

[0007] The technical solution of this utility model is implemented as follows: This utility model provides a pipeline valve, including an annular base plate, an annular cover plate, a drive ring, and multiple valve plates. The inner holes in the center of the base plate and the cover plate serve as flow channels. The multiple valve plates are rotatably mounted between the base plate and the cover plate, and the rotation direction of the valve plates is perpendicular to the material flow direction. The drive ring is rotatably mounted on the cover plate and is connected to the multiple valve plates. The drive ring is configured such that when the drive ring rotates forward, it synchronously drives the multiple valve plates to rotate and close towards the center to close the flow channel; when the drive ring rotates in the reverse direction, it synchronously drives the multiple valve plates to rotate and open outward to open the flow channel.

[0008] Preferably, an annular support is provided between the base plate and the cover plate. The inner side of the support is provided with a plurality of storage slots that respectively cooperate with each valve plate. The inner contour of the storage slot matches the outer contour of the valve plate, and is used to store each valve plate in the corresponding storage slot when the flow channel is fully open.

[0009] Specifically, the base plate, cover plate, and bracket are all provided with mounting holes for bolt fixing connections.

[0010] Optionally, the top surface of the base plate or the bottom surface of the cover plate is provided with a plurality of storage grooves that respectively cooperate with each valve plate. The inner contour of the storage groove matches the outer contour of the valve plate, and is used to store each valve plate in the corresponding storage groove when the flow channel is fully open.

[0011] Furthermore, a top block is provided at one open end of the storage slot, and the driving ring drives the valve plate to rotate around the top block. The contact surface between the top block and the valve plate is an arc surface.

[0012] Specifically, the valve plate is provided with an arc-shaped limiting groove, the arc surface of the limiting groove is coaxial with the arc surface of the top block, and the bottom plate or cover plate is provided with a limiting post that matches the limiting groove. The limiting post is inserted into the limiting groove to constrain the valve plate to rotate around the top block.

[0013] Specifically, the valve plate is provided with an oblong hole, the cover plate is provided with multiple annular clearance grooves, the arc surface of the clearance groove is coaxial with the inner annular arc surface of the cover plate, the clearance groove is intersected with the corresponding oblong hole, the bottom surface of the drive ring is provided with multiple levers, the bottom end of the lever passes through the clearance groove and is inserted into the oblong hole, and the drive ring drives the valve plate to rotate around the top block through the cooperation of the lever and the oblong hole.

[0014] Specifically, the top surface of the cover plate is provided with a convex ring in the middle, and the bottom of the outer side of the convex ring is provided with an annular groove, the outer diameter of the annular groove matching the inner diameter of the drive ring.

[0015] Optionally, the top or outer surface of the drive ring is provided with transmission teeth in the circumferential direction.

[0016] Preferably, the end face of the valve plate is a convex arc surface, and one side of the valve plate is a concave arc surface that matches the end face of the adjacent valve plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) This utility model adopts a flat valve body structure consisting of an annular bottom plate and a cover plate, and sets multiple valve plates that can rotate around a direction perpendicular to the material flow. All valve plates are synchronously linked by a drive ring, ensuring precise synchronization of the action of all valve plates. This makes the valve plates rotate only in the limited space between the bottom plate and the cover plate during the opening and closing process of the valve. It also simplifies the external drive configuration and greatly compresses the radial installation size of the valve, making it suitable for installation occasions with limited space. (2) By setting a storage groove that matches the shape of the valve plate on the annular bracket, base plate or cover plate, the valve plate can be completely stored inside the bracket when the valve is fully opened, avoiding material leakage caused by gaps between the valve plate and the base plate or cover plate, thus ensuring the sealing of the valve. At the same time, the storage groove can limit the rotation of the valve plate to ensure the accuracy of valve opening and closing. (3) The present invention provides a precise and stable rotation axis and motion trajectory constraint for the rotation of each valve plate through the cooperation of the top block, the valve plate with the limit groove and the limit post, ensuring that the valve plate will not deviate or shake during the opening and closing process, so that it can rotate accurately to the set angle, thereby improving the accuracy and reliability of valve opening and closing. (4) This utility model, through the waist-shaped hole on the valve plate, the annular clearance groove on the cover plate, and the lever at the bottom of the drive ring, constitutes a highly efficient power transmission mechanism, which ingeniously transforms the circular motion of the drive ring into the rotational motion of the valve plate around the fixed top block. The structure is compact and the power transmission is direct and reliable. At the same time, this non-rigid connection method has a certain amount of flexibility, which can adapt to small assembly errors, reduce the requirements for processing and assembly precision, and help ensure the stability and service life of the valve in long-term operation. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is an exploded view of a pipeline valve according to the present invention; Figure 2 This is a perspective view of a pipeline valve according to the present invention; Figure 3 This is a schematic diagram showing the state of the internal valve plate when the pipeline valve of this utility model is fully closed; Figure 4 This is a schematic diagram showing the state of the internal valve plate when the pipeline valve of this utility model is fully open; Figure 5 This is a schematic diagram showing the state of the internal valve plate when the pipeline valve of this utility model is half-open; In the diagram: 1. Base plate; 2. Cover plate; 3. Drive ring; 4. Valve plate; 5. Inner hole; 6. Bracket; 7. Storage groove; 8. Mounting hole; 9. Top block; 10. Limiting groove; 11. Limiting post; 12. Waist-shaped hole; 13. Clearance groove; 14. Toggle rod; 15. Protruding ring; 16. Annular groove. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Reference Figures 1 to 5 This utility model provides a pipeline valve, particularly suitable for pneumatic conveying pipelines for graphite powder materials in the production process of lithium-ion battery anode materials. The valve has an overall disc-shaped flat structure, mainly including an annular base plate 1, an annular cover plate 2, a drive ring 3, and multiple valve plates 4. The hollow inner hole 5 in the middle of the base plate 1 and the cover plate 2 together form the flow channel for material flow. The multiple valve plates 4 are rotatably installed between the base plate 1 and the cover plate 2, and the rotation direction of the valve plates 4 is perpendicular to the material flow direction. The drive ring 3 is rotatably installed on the cover plate 2 and is connected to the multiple valve plates 4. The drive ring 3 is configured such that when the drive ring 3 rotates forward, it synchronously drives the multiple valve plates 4 to rotate and close towards the center to close the flow channel; when the drive ring 3 rotates in the reverse direction, it synchronously drives the multiple valve plates 4 to rotate and spread outward to open the flow channel.

[0022] This utility model adopts a flat valve body structure consisting of an annular base plate 1 and a cover plate 2, and sets multiple valve plates 4 that can rotate around a direction perpendicular to the material flow. All valve plates 4 are synchronously linked by a drive ring 3, ensuring precise synchronization of the movement of all valve plates 4. During the opening and closing of the valve, the valve plates 4 only rotate within the limited space between the base plate 1 and the cover plate 2. It also simplifies the external drive configuration, greatly reduces the radial installation size of the valve, and is suitable for installation occasions with limited space.

[0023] Preferably, such as Figure 1 , 3As shown, an annular support 6 is provided between the base plate 1 and the cover plate 2. The inner side of the support 6 is provided with a plurality of storage grooves 7 that respectively cooperate with each valve plate 4. The inner contour of the storage groove 7 matches the outer contour of the valve plate 4, and is used to store each valve plate 4 in the corresponding storage groove 7 when the flow channel is fully open.

[0024] Specifically, such as Figure 1 , 2 As shown, the base plate 1, cover plate 2 and bracket 6 are all provided with mounting holes 8 for bolt fixing, which facilitates the connection and fixing of the base plate 1, cover plate 2 and bracket 6 by bolts.

[0025] Optionally, the top surface of the base plate 1 or the bottom surface of the cover plate 2 is provided with a plurality of storage grooves 7 that respectively cooperate with each valve plate 4. The inner contour of the storage groove 7 matches the outer contour of the valve plate 4, and is used to store each valve plate 4 in the corresponding storage groove 7 when the flow channel is fully open.

[0026] This invention provides a storage groove 7 on the annular bracket 6, the base plate 1, or the cover plate 2 that matches the shape of the valve plate 4. This allows each valve plate 4 to be completely stored inside the bracket 6 when the valve is fully open, preventing material leakage caused by gaps between the valve plate 4 and the base plate 1 or cover plate 2, thus ensuring the valve's sealing performance. At the same time, the storage groove 7 can limit the rotation of the valve plate 4, ensuring the accuracy of valve opening and closing.

[0027] Furthermore, such as Figure 1 , 3 As shown, a top block 9 is provided at one open end of the storage groove 7, and the driving ring 3 drives the valve plate 4 to rotate around the top block 9. The contact surface between the top block 9 and the valve plate 4 is an arc surface.

[0028] Specifically, such as Figure 1 , 3 As shown, the valve plate 4 has an arc-shaped limiting groove 10. The arc surface of the limiting groove 10 is coaxial with the arc surface of the top block 9. The bottom plate 1 or the cover plate 2 has a limiting post 11 that matches the limiting groove 10. The limiting post 11 is inserted into the limiting groove 10. This structure restricts the valve plate 4 to rotate around the arc surface of the top block 9 (i.e., the fixed rotation center) on a fixed axis.

[0029] This invention, through the cooperation of the top block 9, the valve plate 4 with the limiting groove 10, and the limiting post 11, provides a precise and stable rotation axis and motion trajectory constraint for the rotational movement of each valve plate 4, ensuring that the valve plate 4 will not deviate or shake during the opening and closing process, so that it can rotate accurately to the set angle, thereby improving the accuracy and reliability of valve opening and closing.

[0030] Specifically, such as Figure 1 , 3As shown, the valve plate 4 has a waist-shaped hole 12, and the cover plate 2 has multiple annular clearance grooves 13. The arc surface of the clearance groove 13 is coaxial with the inner annular arc surface of the cover plate 2. The clearance groove 13 is intersected with the corresponding waist-shaped hole 12. The bottom surface of the drive ring 3 has multiple levers 14. The bottom end of the lever 14 passes through the clearance groove 13 and inserts into the waist-shaped hole 12. The drive ring 3 drives the valve plate 4 to rotate around the top block 9 through the cooperation of the lever 14 and the waist-shaped hole 12. The waist-shaped hole 12 on the valve plate 4, the annular clearance groove 13 on the cover plate 2, and the lever 14 at the bottom of the drive ring 3 constitute a highly efficient power transmission mechanism. It cleverly converts the circular motion of the drive ring 3 into the rotational motion of the valve plate 4 around the fixed top block 9. The structure is compact and the power transmission is direct and reliable. At the same time, this non-rigid connection method has a certain amount of flexibility, which can adapt to small assembly errors, reduce the requirements for machining and assembly precision, and help ensure the long-term stability and service life of the valve.

[0031] Specifically, such as Figure 1 , 2 As shown, a protruding ring 15 is provided in the middle of the top surface of the cover plate 2, and an annular groove 16 is provided at the bottom of the outer side of the protruding ring 15. The outer diameter of the annular groove 16 matches the inner diameter of the drive ring 3, which can limit the drive ring 3 in the annular groove 16 and prevent the drive ring 3 from falling off.

[0032] Optionally, the top or outer surface of the drive ring 3 is provided with transmission teeth along the circumferential direction. This can be achieved by forming an end-face tooth structure on the top surface of the drive ring 3, facilitating perpendicular meshing with the pinion on the output shaft of the drive motor to drive the drive ring 3 to rotate; alternatively, a gear structure can be formed by providing transmission teeth along the outer surface of the drive ring 3, facilitating direct meshing with the gear on the output shaft of the drive motor to drive the drive ring 3 to rotate. The specific driving method can be flexibly selected according to the actual situation.

[0033] Preferably, such as Figure 1 , 3 As shown, each valve plate 4 has a convex arc surface at its end (i.e., the end closest to the center of the flow channel), while one side of it has a concave arc surface. When all valve plates 4 are closed by closing towards the center, the convex arc surface of one valve plate 4 fits tightly against the concave arc surface of the adjacent valve plate 4, forming an effective sealing pair and preventing mechanical interference during rotation.

[0034] In this embodiment, the pipeline valve is generally installed at the discharge port. A screw hole can be opened on the top surface of the convex ring 15 to directly connect with the flange at the end of the discharge pipe by screws. Alternatively, a flange can be welded on the convex ring 15 and connected with the flange at the end of the discharge pipe by bolts. When the valve is used in the middle of the pipeline, a flange also needs to be welded on the bottom surface of the base plate 1 and connected with the flange at the end of another section of the pipeline by bolts.

[0035] The working process of the pipeline valve in this embodiment is as follows: Opening process: When the valve needs to be opened, an external drive device (such as a motor) drives the drive ring 3 to rotate in the "opening direction" (e.g., counterclockwise) through gear meshing. The drive ring 3 drives all the levers 14 at its bottom to rotate synchronously. The levers 14 slide in the clearance groove 13, while simultaneously actuating the oblong hole 12 on the valve plate 4. Since the rotation center of the valve plate 4 is constrained by the cooperation of the top block 9 and the limiting post 11 with the limiting groove 10, the circular motion of the levers 14 is converted into the rotational motion of the valve plate 4 around the top block 9. Under the synchronous drive of the drive ring 3, all the valve plates 4 rotate outward and spread out, finally being completely stored in the storage groove 7. At this time, the flow channel is completely unobstructed, and the valve is in the fully open state, such as... Figure 4 As shown.

[0036] Closing Process: When the valve needs to be closed, the external drive device drives the drive ring 3 to rotate in the "closing direction" (e.g., clockwise). The drive ring 3 synchronously drives all valve plates 4 to rotate and close towards the center of the flow channel via the lever 14 and the oblong hole 12. Each valve plate 4 rotates around its respective top block 9 until the convex arc surface of its end is tightly fitted with the concave arc surface of the adjacent valve plate 4, together completely blocking the flow channel, and the valve is in a fully closed state, such as... Figure 3 As shown.

[0037] During this process, the limiting mechanism ensures that each valve plate 4 can rotate precisely to the designed position. For example, if the valve only needs to be opened to a half-open state, the drive ring 3 can also drive each valve plate 4 to rotate to the set position. Figure 5 As shown.

[0038] 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 pipeline valve, characterized in that, The device includes an annular base plate (1), an annular cover plate (2), a drive ring (3), and multiple valve plates (4). The inner hole (5) in the middle of the base plate (1) and the cover plate (2) serves as a flow channel. Multiple valve plates (4) are rotatably installed between the base plate (1) and the cover plate (2), and the rotation direction of the valve plates (4) is perpendicular to the material flow direction. The drive ring (3) is rotatably installed on the cover plate (2), and the drive ring (3) is connected to multiple valve plates (4). The drive ring (3) is configured such that when the drive ring (3) rotates in the forward direction, it synchronously drives multiple valve plates (4) to rotate and close towards the center to close the flow channel. When the drive ring (3) rotates in the reverse direction, it synchronously drives multiple valve plates (4) to rotate and open towards the outside to open the flow channel.

2. A pipeline valve as described in claim 1, characterized in that, An annular support (6) is provided between the base plate (1) and the cover plate (2). The support (6) has multiple storage slots (7) that cooperate with each valve plate (4) on its inner side. The inner contour of the storage slot (7) matches the outer contour of the valve plate (4) and is used to store each valve plate (4) in the corresponding storage slot (7) when the flow channel is fully open.

3. A pipeline valve as described in claim 2, characterized in that, The base plate (1), cover plate (2) and bracket (6) are all provided with mounting holes (8) for bolt fixing connection.

4. A pipeline valve as described in claim 1, characterized in that, The top surface of the base plate (1) or the bottom surface of the cover plate (2) is provided with a plurality of storage grooves (7) that respectively cooperate with each valve plate (4). The inner contour of the storage groove (7) matches the outer contour of the valve plate (4) and is used to store each valve plate (4) in the corresponding storage groove (7) when the flow channel is fully opened.

5. A pipeline valve as described in claim 2 or 4, characterized in that, The storage slot (7) has a top block (9) on one side of its open end. The drive ring (3) drives the valve plate (4) to rotate around the top block (9). The contact surface between the top block (9) and the valve plate (4) is an arc surface.

6. A pipeline valve as described in claim 5, characterized in that, The valve plate (4) is provided with an arc-shaped limiting groove (10), the arc surface of the limiting groove (10) is coaxial with the arc surface of the top block (9), and the bottom plate (1) or cover plate (2) is provided with a limiting post (11) that matches the limiting groove (10). The limiting post (11) is inserted into the limiting groove (10) to constrain the valve plate (4) to rotate around the top block (9).

7. A pipeline valve as described in claim 6, characterized in that, The valve plate (4) is provided with a waist-shaped hole (12), and the cover plate (2) is provided with multiple annular clearance grooves (13). The arc surface of the clearance groove (13) is coaxial with the inner annular arc surface of the cover plate (2). The clearance groove (13) is intersected with the corresponding waist-shaped hole (12). The bottom surface of the drive ring (3) is provided with multiple levers (14). The bottom end of the lever (14) passes through the clearance groove (13) and is inserted into the waist-shaped hole (12). The drive ring (3) drives the valve plate (4) to rotate around the top block (9) through the cooperation of the lever (14) and the waist-shaped hole (12).

8. A pipeline valve as described in claim 1, characterized in that, The top surface of the cover plate (2) is provided with a convex ring (15) in the middle, and the bottom of the outer side of the convex ring (15) is provided with an annular groove (16), the outer diameter of the annular groove (16) is matched with the inner diameter of the drive ring (3).

9. A pipeline valve as described in claim 1, characterized in that, The top or outer side of the drive ring (3) is provided with transmission teeth along the circumferential direction.

10. A pipeline valve as described in claim 1, characterized in that, The end face of the valve plate (4) is an outwardly convex arc surface, and one side of the valve plate (4) is an inwardly concave arc surface that matches the end face of the adjacent valve plate (4).

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