Dual-drive-mode large-caliber high-flow-volume ball valve

Abstract

The utility model discloses a dual-drive large-caliber high-flow ball valve, which relates to the field of large-caliber high-flow ball valves, and is characterized by comprising a ball valve main body and a valve rod for driving a ball body in the ball valve main body to rotate, and the top end of the valve rod is fixedly connected with a rotating wheel. An electric quick opening and closing assembly which ascends and descends through a lifting assembly is installed above the rotating wheel, after the electric quick opening and closing assembly moves downwards, a protruding part on the electric quick opening and closing assembly is inserted into a groove part in the rotating wheel, the electric quick opening and closing assembly can rotate the valve rod, and finally the ball is driven to rotate; the large-diameter ball valve has the advantages that two driving modes are conveniently switched through a simple and reliable mechanical structure, the problem that manual operation is low in speed is solved, the defect that single electric driving cannot be used in the case of faults or emergency power failure is overcome, and applicability and operation flexibility of the large-diameter ball valve under different working conditions are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of large-diameter, high-flow-rate ball valves, and more specifically, to a large-diameter, high-flow-rate ball valve with dual-drive mechanism. Background Technology

[0002] In industrial fields such as petrochemicals, water supply and drainage, and energy transmission, large-diameter, high-flow-rate ball valves are key components for controlling the flow of media. Their opening and closing efficiency and operational reliability directly affect the safety and stability of system operation.

[0003] Traditional large-diameter, high-flow-rate ball valves are typically equipped with only a single actuation method (commonly manual or electric). While manual operation is simple in structure and easy to maintain, it suffers from slow opening and closing speeds and high labor intensity, making it difficult to meet the needs of quickly shutting off or guiding the medium in emergency situations. On the other hand, conventional electric actuation can achieve rapid valve opening and closing, but in the event of an emergency power outage or electrical failure, the ball valve will become unusable. However, traditional ball valve designs lack efficient mechanical coupling and separation mechanisms, making it impossible to easily switch between the two actuation methods and difficult to flexibly select the actuation mode according to the working conditions in daily operation.

[0004] Therefore, in order to solve the above-mentioned technical problems, this application proposes a large-diameter, high-flow-rate ball valve with dual drive mode. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a large-diameter, high-flow ball valve with dual drive mode.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a large-diameter, high-flow-rate ball valve with dual drive, comprising a ball valve body and a valve stem that drives the ball inside the ball valve body to rotate. A rotating wheel is fixedly connected to the top of the valve stem, and an electric quick-opening and closing assembly that is raised and lowered by a lifting component is installed above the rotating wheel. After the protrusion on the electric quick-opening and closing assembly moves downward and inserts into the groove on the rotating wheel, the electric quick-opening and closing assembly can rotate the valve stem, ultimately driving the ball to rotate.

[0007] Preferably, the lifting assembly includes a connecting plate welded to the ball valve body, a lifting plate that is maintained in a straight line relative to the connecting plate by a straight line maintaining component is installed at the top of the connecting plate, a through hole is opened inside the lifting plate, a screw that can pass through the through hole is fixedly connected to the top of the connecting plate, a nut is threaded on the outer side wall of the screw, and a support platform is fixedly connected to the top of the connecting plate.

[0008] Preferably, a spring is installed between the support platform and the lifting plate.

[0009] Preferably, the linear support component includes guide rails fixed to the top of the connecting plate on both sides of the lifting plate, and the two sides of the lifting plate are slidably connected to the guide rails by sliders.

[0010] Preferably, the electric quick-opening and closing assembly includes a vertical plate fixed to the lifting plate, a drive motor is provided on the vertical plate, a large bevel gear is fixedly connected to the transmission part of the drive motor, and a small bevel gear perpendicular to it is meshed on the outer wall of the large bevel gear. A bearing is fixedly connected to the surface of the vertical plate through a horizontal plate, and a rotating rod is fixedly connected to the inner ring of the bearing. The top end of the rotating rod is fixed to the small bevel gear, and a protrusion on the electric quick-opening and closing assembly is provided at the bottom end of the rotating rod.

[0011] Preferably, the groove on the rotating wheel is a connecting slot fixed to the top of the rotating wheel, and the protrusion on the electric quick-opening and closing assembly is a connecting block provided at the bottom of the rotating rod.

[0012] Preferably, the connecting plate is detachably connected to the ball valve body by screws.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This utility model achieves convenient switching between two driving modes through a simple and reliable mechanical structure, which not only solves the problem of slow manual operation, but also overcomes the inability to use a single electric drive in case of failure or emergency power failure. It significantly improves the applicability and operational flexibility of large-diameter ball valves under different working conditions, thereby solving the problem that traditional ball valves in the background technology cannot achieve convenient switching between two driving modes.

[0015] 2. This utility model uses the vertical arrangement of bevel gear pairs to smoothly convert the horizontal output shaft power of the drive motor into the vertical rotational motion of the rotating rod, effectively utilizing the space above the ball valve, optimizing the overall layout of the electric quick opening and closing assembly, and avoiding the impact on the installation and maintenance of equipment around the valve due to excessive horizontal dimensions.

[0016] 3. This utility model uses a design where a large bevel gear drives a small bevel gear, enabling the small bevel gear to achieve a higher rotational speed. Combined with the direct linkage between the rotating rod and the valve stem, the time required for the ball to complete a 30° rotation can be shortened, further enhancing the valve's rapid response capability.

[0017] 4. The connecting plate of this utility model is detachably connected to the ball valve body by screws. The detachable structure allows the ball valve body to be packaged separately from the electric quick opening and closing component and the lifting component, effectively reducing the overall volume, reducing transportation costs and avoiding collision damage during transportation. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the specific structure of the side of this utility model;

[0021] Figure 3 This utility model Figure 2 Enlarged view of the local structure of A;

[0022] Figure 4 This is a schematic diagram of the specific structure of the back of this utility model;

[0023] Figure 5 This utility model Figure 4 Enlarged view of the local structure of B.

[0024] In the diagram: 1. Ball valve body; 2. Ball; 3. Valve stem; 4. Rotary wheel; 401. Connecting slot seat; 5. Lifting assembly; 501. Connecting plate; 502. Linear support component; 5021. Guide rail; 5022. Slider; 503. Lifting plate; 504. Through hole; 505. Screw; 506. Nut; 507. Support platform; 508. Spring; 6. Electric quick opening and closing assembly; 601. Vertical plate; 602. Large bevel gear; 603. Small bevel gear; 604. Horizontal plate; 605. Bearing; 606. Rotating rod; 607. Drive motor; 608. Connecting block. Detailed Implementation

[0025] like Figure 1-5 As shown, this utility model provides a large-diameter, high-flow-rate ball valve with dual drive mechanism, including a ball valve body 1 and a valve stem 3 that drives the ball 2 inside the ball valve body 1 to rotate. A rotating wheel 4 is fixedly connected to the top of the valve stem 3. An electric quick-opening and closing assembly 6 that is raised and lowered by a lifting assembly 5 is installed above the rotating wheel 4. After the protrusion on the electric quick-opening and closing assembly 6 moves downward and inserts into the groove on the rotating wheel 4, the electric quick-opening and closing assembly 6 can rotate the valve stem 3, and finally drive the ball 2 to rotate.

[0026] When rapid opening and closing is required, the lifting assembly 5 drives the electric rapid opening and closing assembly 6 downwards, causing the protrusion on the electric rapid opening and closing assembly 6 to insert into the groove of the rotating wheel 4, forming a transmission structure. At this time, the electric rapid opening and closing assembly 6 is activated, driving the valve stem 3 to rotate rapidly through the rotating wheel 4, achieving a 90° rotation of the ball 2 in a short time, meeting the needs of rapid cutoff or conduction of the medium in emergency situations. In daily operation or when the electric system malfunctions, the electric rapid opening and closing assembly 6 can be raised through the lifting assembly 5, separating it from the rotating wheel 4. At this time, the operator can directly rotate the rotating wheel 4, driving the ball 2 through the valve stem 3 to achieve manual opening and closing, combining the reliability of traditional manual operation with the high efficiency of electric drive. This design, through a simple and reliable mechanical structure, achieves convenient switching between two drive methods, solving the problem of slow manual operation speed and overcoming the inability to use a single electric drive in case of failure or emergency power failure, significantly improving the applicability and operational flexibility of large-diameter ball valves under different working conditions.

[0027] The lifting assembly 5 includes a connecting plate 501 welded to the side of the ball valve body 1. A lifting plate 503, whose linear movement relative to the connecting plate 501 is maintained by a linear maintaining component 502, is mounted on the top of the connecting plate 501. A through hole 504 is provided inside the lifting plate 503. A screw 505, capable of passing through the through hole 504, is fixedly connected to the top of the connecting plate 501. A nut 506 is threaded onto the outer wall of the screw 505. A support platform 507 is fixedly connected to the top of the connecting plate 501. A spring 508 is installed between the support platform 507 and the lifting plate 503. The linear maintaining component 502 includes guide rails 5021 fixed to the top of the connecting plate 501 on both sides of the lifting plate 503. The two sides of the lifting plate 503 are slidably connected to the guide rails 5021 via sliders 5022. The electric quick-opening and closing assembly 6 includes a vertical plate 601 fixed on the lifting plate 503. A drive motor 607 is installed on the vertical plate 601. A large bevel gear 602 is fixedly connected to the transmission part of the drive motor 607. A small bevel gear 603, perpendicular to the large bevel gear 602, is meshed on the outer wall of the large bevel gear 602. A bearing 605 is fixedly connected to the surface of the vertical plate 601 through a horizontal plate 604. A rotating rod 606 is fixedly connected to the inner ring of the bearing 605. The top end of the rotating rod 606 is fixed to the small bevel gear 603. A protrusion on the electric quick-opening and closing assembly 6 is provided at the bottom end of the rotating rod 606. The groove on the rotating wheel 4 is a connecting slot seat 401 fixed at the top end of the rotating wheel 4. The protrusion on the electric quick-opening and closing assembly 6 is a connecting block 608 provided at the bottom end of the rotating rod 606.

[0028] When rapid opening and closing is required, the operator rotates the nut 506, causing it to move downwards along the screw 505. The nut 506 pushes the lifting plate 503 to move downwards in a straight line (as the lifting plate 503 moves up and down, it drives the slider 5022 to move up and down, and the slider 5022 slides vertically along the guide rail 5021, so that the lifting plate 503 can only move vertically relative to the connecting plate 501). This compresses the spring 508, causing the electric rapid opening and closing assembly 6 fixed on the lifting plate 503 to move downwards as a whole, so that the connecting block 608 at the bottom of the rotating rod 606 is inserted into the connecting slot 401 at the top of the rotating wheel 4 (the connecting slot 401 is rotated beforehand to connect the connecting slot 401 and the connecting rod 406). (Connecting block 608 is aligned) to form a transmission structure; at this time, the drive motor 607 is started, and the drive motor 607 drives the large bevel gear 602 to rotate. The large bevel gear 602 meshes with the small bevel gear 603 to transmit power to the rotating rod 606 fixed to the small bevel gear 603. When the rotating rod 606 rotates, it will drive the inner ring of the bearing 605 to rotate. Its inner ring is along its outer ring, thus the bearing 605 provides rotational support for the rotating rod 606 and the small bevel gear 603. The rotating rod 606 drives the rotating wheel 4 and the valve stem 3 to rotate rapidly through the connecting block 608 and the connecting slot seat 401, so that the ball 2 can rotate 90° in a short time, which meets the needs of rapid cut-off or conduction of the medium in emergency conditions. In the event of an emergency power outage or electrical fault, the nut 506 is rotated in the opposite direction to move it upward. The spring 508 uses its rebound force to lift the lifting plate 503, causing the connecting block 608 to separate from the connecting slot seat 401. At this time, the operator can directly rotate the rotating wheel 4 and drive the ball 2 through the valve stem 3 to achieve manual opening and closing.

[0029] The aforementioned vertical arrangement of the bevel gear pair smoothly converts the horizontal output shaft power of the drive motor 607 into the vertical rotational motion of the rotating rod 606, effectively utilizing the space above the ball valve and optimizing the overall layout of the electric quick-opening and closing assembly 6. This avoids the installation and maintenance of surrounding equipment being affected by excessively large horizontal dimensions. Furthermore, the design of the large bevel gear 602 driving the small bevel gear 603 allows the small bevel gear 603 to achieve a higher rotational speed. Combined with the direct linkage between the rotating rod 606 and the valve stem 3, the time required for the ball 2 to complete a 90° rotation can be shortened, further enhancing the valve's rapid response capability.

[0030] Furthermore, the connecting plate 501 is detachably connected to the ball valve body 1 by screws. The detachable structure allows the ball valve body 1 to be packaged separately from the electric quick-opening and closing assembly 6 and the lifting assembly 5, effectively reducing the overall volume, lowering transportation costs and avoiding collision damage during transportation. In addition, when the electric quick-opening and closing assembly 6 or the lifting assembly 5 malfunctions, the connecting plate 501 can be quickly separated from the ball valve body 1 by removing the screws for repair or replacement.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A large-diameter, high-flow-rate ball valve with dual-drive mechanism, comprising a ball valve body (1) and a valve stem (3) for driving the rotation of a ball (2) inside the ball valve body (1), characterized in that: The top of the valve stem (3) is fixedly connected to a rotating wheel (4). An electric quick-opening and closing assembly (6) that is raised and lowered by a lifting assembly (5) is installed above the rotating wheel (4). After the protrusion on the electric quick-opening and closing assembly (6) moves downward and inserts into the groove on the rotating wheel (4), the electric quick-opening and closing assembly (6) can rotate the valve stem (3) and finally drive the ball (2) to rotate.

2. The large-diameter, high-flow-rate ball valve with dual-drive mechanism according to claim 1, characterized in that: The lifting assembly (5) includes a connecting plate (501) welded to the ball valve body (1). The top of the connecting plate (501) is equipped with a lifting plate (503) that is maintained in a straight line relative to the connecting plate (501) by a straight line maintaining component (502). The lifting plate (503) has a through hole (504) inside. The top of the connecting plate (501) is fixedly connected with a screw (505) that can pass through the through hole (504). A nut (506) is threaded onto the outer side wall of the screw (505). The top of the connecting plate (501) is fixedly connected with a support platform (507).

3. A large-diameter, high-flow-rate ball valve with dual-drive mechanism according to claim 2, characterized in that: A spring (508) is installed between the support platform (507) and the lifting plate (503).

4. A large-diameter, high-flow-rate ball valve with dual-drive mechanism according to claim 2, characterized in that: The linear support component (502) includes guide rails (5021) fixed to the top of the connecting plate (501) and located on both sides of the lifting plate (503). The two sides of the lifting plate (503) are slidably connected to the guide rails (5021) by sliders (5022).

5. A large-diameter, high-flow-rate ball valve with dual-drive mechanism according to claim 2, characterized in that: The electric quick-opening and closing assembly (6) includes a vertical plate (601) fixed on a lifting plate (503). A drive motor (607) is provided on the vertical plate (601). A large bevel gear (602) is fixedly connected to the transmission part of the drive motor (607). A small bevel gear (603) perpendicular to the large bevel gear (602) is meshed on the outer wall of the large bevel gear (602). A bearing (605) is fixedly connected to the surface of the vertical plate (601) through a horizontal plate (604). A rotating rod (606) is fixedly connected to the inner ring of the bearing (605). The top of the rotating rod (606) is fixed to the small bevel gear (603). A protrusion on the electric quick-opening and closing assembly (6) is provided at the bottom end of the rotating rod (606).

6. A large-diameter, high-flow-rate ball valve with dual-drive mechanism according to claim 5, characterized in that: The groove on the rotating wheel (4) is a connecting slot seat (401) fixed to the top of the rotating wheel (4), and the protrusion on the electric quick opening and closing assembly (6) is a connecting block (608) set at the bottom of the rotating rod (606).

7. A large-diameter, high-flow-rate ball valve with dual-drive mechanism according to claim 2, characterized in that: The connecting plate (501) is detachably connected to the ball valve body (1) by screws.

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