Ball valve with foldable handle

Abstract

The utility model belongs to the technical field of valves, and particularly relates to a ball valve with a foldable handle, which comprises a valve body, a valve seat, a valve core, a valve rod, the handle and the like, the handle is bent, a folding groove and a rotatable extension handle are arranged at the top end of the handle, and the extension handle is matched with a first lock groove and a second lock groove of the folding groove through an assembly groove, a spring and a lock ball. The arc-shaped grooves in the edges of the first lock groove and the second lock groove ensure that the lock ball enters and exits smoothly, the limiting bent part of the handle is matched with the opening and closing position limiting blocks of the valve body, the ball valve is accurately controlled to be opened and closed, the limiting part at the top end of the valve body is matched with the lock sleeve of the handle, the state of the ball valve can be locked, and in the limited space, the position of the valve body is limited. The folding extension handle can reduce occupied space, avoid collision interference, reduce misoperation risks in the industries such as chemical engineering and petroleum, guarantee production safety, prolong the service life of the ball valve through the limiting structure, enhance operation reliability, integrally and effectively improve the performance of the ball valve, and meet the requirements of complex working conditions.

Description

Technical Field

[0001] This utility model belongs to the field of valve technology, specifically a ball valve with a foldable handle. Background Technology

[0002] Ball valves are key components in pipeline systems used to control fluid flow and opening / closing. The opening and closing element is a ball, and the valve is opened and closed by rotating the ball. They have many significant advantages, such as simple and quick operation, requiring only a 90-degree rotation to complete the opening or closing action. Ball valves are widely used in many industries such as petroleum, chemical, power, and construction.

[0003] Existing ball valves mainly consist of a valve body, a ball, a valve stem, a sealing device, and an operating device. The working principle is that the operating device drives the valve stem to rotate, which in turn causes the ball to rotate. When the ball's through-hole is aligned with the inlet and outlet channels, fluid can pass through, and the ball valve opens. When it is perpendicular, the fluid is cut off, and the ball valve closes. The flow rate can also be adjusted by controlling the rotation angle.

[0004] Currently, existing ball valves have the following drawbacks: In space-constrained working environments, such as miniaturized fluid control systems in the aerospace field, compact piping areas inside ships, and narrow compartments in some industrial equipment, the handle design of conventional ball valves causes great inconvenience. Conventional ball valve handles are usually of fixed length and large size, occupying too much space in these space-constrained scenarios. This not only makes equipment installation extremely difficult, making it hard to rationally arrange other equipment in a limited space, but also makes it easy for the ball valve or other equipment to collide with surrounding objects during equipment operation, resulting in damage to the ball valve or other equipment and seriously affecting the normal operation of the system. Therefore, to address the above problems, a ball valve with a foldable handle is proposed. Utility Model Content

[0005] To address the shortcomings of existing ball valves, a ball valve with a foldable handle is proposed.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A ball valve with a foldable handle according to this utility model includes a valve body, a valve seat is provided in the valve body, a valve core is rotatably provided on the valve seat, a valve stem is fixedly provided at the top of the valve core, the top of the valve stem extends out of the outer top of the valve body, a handle is assembled at the top of the valve stem by a fixing bolt, the handle is bent, a folding groove is provided on one side of the top of the handle, an extension handle is rotatably provided in the folding groove by a rotating rod, the folding groove is used to store the folded extension handle, and mounting grooves are provided on both sides of the extension handle opposite to the folding groove, a locking ball is movably provided in the mounting groove by a spring, and a first locking groove and a second locking groove are provided on the inner wall of the folding groove to cooperate with the locking ball.

[0007] Preferably, the locking ball cooperates with the first locking groove to limit the position of the extension handle within the folding groove after folding.

[0008] Preferably, the locking ball cooperates with the second locking groove to limit the position of the extension handle within the folding groove after it is opened.

[0009] Preferably, the edges of the first locking groove and the second locking groove are provided with arc-shaped bevels.

[0010] Preferably, one end of the handle is provided with a limiting bend, and the top end of the valve body is fixedly provided with an opening position limiting block and a closing position limiting block that cooperate with the limiting bend.

[0011] Preferably, a first limiting part and a second limiting part are fixedly provided on one side of the top end of the valve body to limit the position of the handle and the valve body, and a locking sleeve that cooperates with the first limiting part and the second limiting part is slidably fitted on the handle.

[0012] The beneficial effects of this utility model are:

[0013] This utility model provides a ball valve with a foldable handle. The foldable extension handle design offers significant advantages in environments with limited space. When the extension handle is folded, it greatly reduces the space occupied by the ball valve's operating components, effectively preventing collisions or interference with surrounding objects. This ensures the normal installation and operation of equipment within limited spaces and solves the problem of conventional ball valve handles affecting the installation of nearby equipment due to their length. From a safety perspective, the shorter folded handle prevents accidental touches and misoperations to a certain extent. For industries with extremely high safety requirements, such as chemical and petroleum industries, this design reduces the risk of serious safety accidents caused by misoperation, providing additional safety assurance for the production process. Attached Figure Description

[0014] 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:

[0015] Figure 1 This is a cross-sectional view of the entire utility model;

[0016] Figure 2 This is a cross-sectional view of the folding groove and extension handle of this utility model;

[0017] Figure 3 This is a first perspective view of the overall structure of this utility model;

[0018] Figure 4 This is a second perspective view of the overall structure of this utility model;

[0019] Figure 5 This is a structural diagram of the extended handle of this utility model in its unfolded state;

[0020] Figure 6 This is a structural diagram of the extended handle of this utility model after folding.

[0021] Legend:

[0022] 1. Valve body; 2. Valve seat; 3. Valve core; 4. Valve stem; 5. Handle; 6. Folding groove; 7. Extension handle; 8. Assembly groove; 9. Spring; 10. Locking ball; 11. First locking groove; 12. Second locking groove; 13. Arc-shaped bevel; 14. Limiting bend; 15. Opening position limiting block; 16. Closing position limiting block; 17. First limiting part; 18. Locking sleeve; 19. Second limiting part. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Specific implementation examples are given below.

[0025] Please see Figures 1-6The present invention discloses a ball valve with a foldable handle, comprising a valve body 1, a valve seat 2 disposed within the valve body 1, a valve core 3 rotatably disposed on the valve seat 2, a valve stem 4 fixedly disposed at the top end of the valve core 3, the top end of the valve stem 4 extending beyond the outer top end of the valve body 1, a handle 5 being mounted to the top end of the valve stem 4 via a fixing bolt, the handle 5 being bent, a folding groove 6 being formed on one side of the top end of the handle 5, an extension handle 7 being rotatably disposed within the folding groove 6 via a rotating rod, the folding groove 6 being used to accommodate the folded extension handle 7, and mounting grooves 8 being formed on both sides of the extension handle 7 opposite to the folding groove 6. A locking ball 10 is movably mounted in the assembly groove 8 via a spring 9. The inner wall of the folding groove 6 has a first locking groove 11 and a second locking groove 12 that cooperate with the locking ball 10. The locking ball 10 cooperates with the first locking groove 11 to limit the position of the extension handle 7 within the folding groove 6 after folding, and the locking ball 10 cooperates with the second locking groove 12 to limit the position of the extension handle 7 within the folding groove 6 after opening. During operation, in daily use, the operator can directly operate the ball valve using the handle 5. By rotating the handle 5, the valve stem 4 and valve core 3 are driven, thus opening and closing the ball valve. The foldable extension handle 7 is mainly to accommodate different... In use cases, when not in use, it can be folded and stored in the folding slot 6 via the rotating rod. When it is necessary to fold the extension handle 7, the operator can manually rotate it into the folding slot 6. At this time, the locking ball 10 is engaged in the first locking slot 11 under the action of the spring 9, so that the extension handle 7 is stably stored in the folding slot 6. In some environments with limited space, such as small equipment compartments, compact pipeline layout areas, especially miniaturized fluid control systems in the aerospace field, the folded extension handle 7 greatly reduces the space occupied by the ball valve operating components, avoids collisions or interference with surrounding objects, and because the entire handle becomes shorter after folding, it can also be used to a certain extent... To a certain extent, it prevents accidental touch and misoperation. For industries with high safety requirements such as chemical and petroleum, it reduces the risk of serious safety accidents caused by misoperation. When the ball valve needs to be used, the extension handle 7 can be turned out from the folding groove 6, and the locking ball 10 is locked into the second locking groove 12 under the action of the spring 9. The extension handle 7 is in the open state, providing a convenient operating component. Through the design of this utility model, in space-constrained environments, the folding extension handle 7 saves valuable space, enabling the ball valve to better adapt to the space layout of miniaturized equipment in fields such as aerospace, and avoiding the impact of the conventional ball valve handle length on the installation of nearby equipment.

[0026] Furthermore, the edges of the first locking groove 11 and the second locking groove 12 are provided with arc-shaped bevels 13. During operation, when the extension handle 7 is folded or unfolded, the locking ball 10 moves in and out of the first locking groove 11 and the second locking groove 12 under the elastic force of the spring 9. The arc-shaped bevels 13 guide the movement trajectory of the locking ball 10, making it easier for it to enter or leave the locking groove. When the extension handle 7 is folded, the locking ball 10 moves towards the first locking groove 11 under the push of the spring 9. The guidance of the arc-shaped bevels 13 allows the locking ball 10 to smoothly enter the first locking groove 11, ensuring that the extension handle 7 can be stably stored and avoiding collisions with surrounding objects. When the extension handle 7 is unfolded, the locking ball 10 moves from the first locking groove 11 to the second locking groove 12. The arc-shaped bevels 13 assist it in smoothly entering the second locking groove 12, ensuring that the extension handle 7 can be opened smoothly and providing convenience for operation. Throughout the process, the arc-shaped bevels 13 play a buffering and guiding role, avoiding rigid collisions between the locking ball 10 and the edge of the locking groove, ensuring smooth operation.

[0027] Furthermore, one end of the handle 5 is provided with a limiting bend 14, and the top of the valve body 1 is fixedly provided with an opening position limiting block 15 and a closing position limiting block 16 that cooperate with the limiting bend 14. During operation, when operating the ball valve, rotating the handle 5 will drive the valve stem 4 and valve core 3 to rotate, thereby changing the opening and closing states of the ball valve. When opening the ball valve, the handle 5 rotates, and its limiting bend 14 rotates accordingly until it contacts the opening position limiting block 15. At this time, the ball valve reaches the fully open state, preventing over-opening. When closing the ball valve, the limiting bend 14 rotates to contact the closing position limiting block 16, limiting... This limiting structure controls the further closing action of the ball valve, ensuring precise control during the opening and closing process. Whether the extension handle 7 is folded or unfolded, it effectively limits the operation. This limiting design provides precise control and protection for the operation of the ball valve, avoiding damage to the valve core 3 and valve seat 2 seals or excessive pressure on the valve core 3 and valve seat 2 due to over-opening or over-closing. It extends the service life of the ball valve and improves the safety and reliability of operation. At the same time, the operator can accurately judge the status of the ball valve based on the contact condition of the limiting component, ensuring the stable operation of the ball valve in various industrial environments.

[0028] Furthermore, a first limiting part 17 and a second limiting part 19 are fixedly provided on one side of the top of the valve body 1 to limit the position of the handle 5 relative to the valve body 1. A locking sleeve 18 that cooperates with the first limiting part 17 and the second limiting part 19 is slidably fitted on the handle 5. During operation, after the ball valve has been normally operated, when the ball valve is in the required open state, if it is necessary to lock the current state of the ball valve, the locking sleeve 18 can be slid along the handle 5 to align with the first limiting part 17. The locking structure is formed to restrict the rotation of the handle 5 relative to the valve body 1, ensuring the stability of the ball valve in the open state. Conversely, when the ball valve is in the closed state, the locking sleeve 18 slides along the handle 5 to align with the second limiting part 19. The two work together to form a locking structure, restricting the rotation of the handle 5 relative to the valve body 1, ensuring the stability of the ball valve in the closed state. This locking structure can prevent the ball valve state from changing due to accidental collisions or vibrations. When it is necessary to reoperate the ball valve, the locking sleeve 18 can be slid away from the first limiting part 17 to restore the operability of the handle 5.

[0029] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A ball valve with a foldable handle, characterized in that: The valve body (1) includes a valve seat (2) inside the valve body (1), a valve core (3) is rotatably mounted on the valve seat (2), a valve stem (4) is fixedly mounted on the top of the valve core (3), the top of the valve stem (4) extends out of the top of the valve body (1), a handle (5) is mounted on the top of the valve stem (4) by a fixing bolt, the handle (5) is bent, a folding groove (6) is opened on one side of the top of the handle (5), an extension handle (7) is rotatably mounted in the folding groove (6) by a rotating rod, the folding groove (6) is used to store the folded extension handle (7), and an assembly groove (8) is opened on both sides of the extension handle (7) opposite to the folding groove (6), a locking ball (10) is movably mounted in the assembly groove (8) by a spring (9), and a first locking groove (11) and a second locking groove (12) that cooperate with the locking ball (10) are opened on the inner wall of the folding groove (6). The locking ball (10) cooperates with the first locking groove (11) to restrict the position of the extension handle (7) in the folding groove (6) after folding. The locking ball (10) cooperates with the second locking groove (12) to restrict the position of the extension handle (7) in the folding groove (6) after opening. The edges of the first locking groove (11) and the second locking groove (12) are provided with arc-shaped bevels (13). One end of the handle (5) is provided with a limiting bend (14). The top of the valve body (1) is fixedly provided with an opening position limiting block (15) and a closing position limiting block (16) that cooperate with the limiting bend (14). The top side of the valve body (1) is fixedly provided with a first limiting part (17) and a second limiting part (19) for limiting the position of the handle (5) and the valve body (1). The handle (5) is slidably fitted with a locking sleeve (18) that cooperates with the first limiting part (17) and the second limiting part (19).

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