Rotary gravity ball valve

Abstract

The utility model relates to a rotary type gravity ball valve, relate to ball valve technical field, include: valve body, valve ball, rotation setting in the valve body, rotation rod, set up on the valve ball, be used for driving valve ball rotation, connecting box, set up on connecting rod, be used for driving connecting rod rotation, connecting rod, one end passes through connecting box, activity setting in connecting box, be used for driving connecting box rotation, first limit block, fixed setting in the upper wall of connecting box, and the limit slot is set up in annular array on first limit block, second limit block, set up on connecting rod, limit component, set up on connecting rod, be used for in the connecting rod through second limit block and abut on first limit block drive connecting box rotation while, to its limit fixed, reduce the force that ball valve rotation process needs always has to lift up connecting rod. The utility model discloses through limit component, can avoid accidental touch under non -operating state and lead to valve malfunction, avoid operating fatigue simultaneously.

Description

Technical Field

[0001] This application relates to the field of ball valve technology, and more particularly to a rotary gravity ball valve. Background Technology

[0002] Ball valves are a type of valve widely used in industrial pipeline systems. They are mainly used to open or close fluid passages in pipelines. When the ball valve is open, the through hole of the ball is aligned with the direction of the pipeline, allowing fluid to pass through smoothly. When the ball valve is closed, the ball rotates 90 degrees under the action of the valve stem, making the through hole on the ball perpendicular to the pipeline, thereby cutting off the fluid.

[0003] Currently, Chinese utility model patent application CN 220286505U, published on January 2, 2024, discloses a DIN-welded three-piece ball valve, relating to the field of three-piece ball valve technology. It includes a second valve body with a first valve body mounted on both sides. A ball is disposed inside the second valve body, and an installation platform is mounted on the top of the second valve body. A fixing block is disposed inside the installation platform, and a cavity is formed inside the fixing block. A receiving groove is formed at the top of the cavity, and three limiting grooves are formed on the outer wall of the receiving groove. This utility model utilizes gravity to allow the handle to fall naturally, causing the limiting plate to fall into the cavity. At this point, regardless of external force applied to the handle, the handle can only rotate on its own and cannot apply any force to the cavity. Therefore, the fixing block will not rotate, and the position of the ball will remain fixed. Compared to existing technologies, the user does not need to perform any operation after rotating the handle, and the ball will not fail to lock due to carelessness.

[0004] In the related technology, the rotary gravity ball valve requires a continuous upward force to lift the ball valve during the initial rotation process. This requirement for continuous upward force makes the operation cumbersome and laborious. Operators need to apply an upward force while rotating the ball valve, making it impossible to easily and quickly complete the valve opening and closing operation, thus increasing operation time and labor costs.

[0005] Therefore, it is necessary to provide a rotary gravity ball valve to solve the above problems. Utility Model Content

[0006] This application provides a rotary gravity ball valve to improve the technical problem in the related art where a force is required to continuously lift the valve stem during the initial rotation of the ball valve, making the operation process cumbersome and laborious.

[0007] This application provides a rotary gravity ball valve, comprising: Valve body; The valve ball is rotatably mounted in the valve body; A rotating rod is mounted on the valve ball and is used to drive the valve ball to rotate. A connecting box, mounted on the connecting rod, is used to drive the connecting rod to rotate; A connecting rod, one end of which passes through the connecting box and is movably disposed inside the connecting box, is used to drive the connecting box to rotate. The first limiting block is fixedly installed on the upper wall of the connecting box, and the first limiting block has a ring array of limiting grooves. The second limiting block is disposed on the connecting rod and is the same size as the limiting groove; A limiting component is provided on the connecting rod to limit and fix the connecting rod while it rotates the connecting box by abutting against the first limiting block through the second limiting block, thereby reducing the need for a constant upward force to lift the connecting rod during the rotation of the ball valve.

[0008] The technical solution described above in this application embodiment has at least the following technical effects: When using a rotary gravity ball valve, the user lifts the connecting rod upwards during the process of rotating the ball valve, causing the second limiting block to abut against the limiting groove in the first limiting block. This limits the position of the connecting rod by the limiting component. During rotation, the second limiting block on the connecting rod abuts against the first limiting block, causing the connecting box to rotate. This causes the connecting box to rotate the rotating rod, which in turn causes the valve ball to rotate. After rotation, the limiting component releases the position limitation of the connecting rod, allowing the connecting rod to descend under gravity, thus preventing accidental contact with the rotating connecting rod and preventing the valve ball from rotating. This also reduces the loss of force during the process.

[0009] The rotary gravity ball valve provided in this application embodiment can lock the position of the connecting rod through a limiting component. After rotation, it automatically releases the lock and resets by gravity. This can prevent accidental contact during non-operational states from causing valve malfunction. At the same time, it reduces the need for a constant upward force to lift the connecting rod during the rotation of the ball valve, thus avoiding operator fatigue.

[0010] In some embodiments, the limiting component includes: A fixing ring is provided on the upper wall of the connecting box, and a fixing groove is provided on the fixing ring; A transmission component is disposed within the connecting rod and is used to drive the connecting rod through the fixing groove to restrict the position of the connecting rod.

[0011] In some embodiments, the connecting rod has a transmission hole, and the transmission component includes: An abutment plate is disposed inside the connecting rod; An inclined block passes through the transmission hole and is slidably disposed within the connecting rod; The abutment spring has one end abutting against the abutment plate and the other end abutting against the inclined block; The transmission rod is movably disposed within the connecting rod, with one end abutting against the inclined block.

[0012] In some embodiments, the transmission rod is provided with a transmission button for pressing the transmission rod.

[0013] In some embodiments, the diameter of the transmission button is smaller than the diameter of the transmission rod, and a connecting spring is provided on the transmission rod. One end of the connecting spring is connected to the transmission rod, and the other end of the connecting spring is connected to the inner wall of the connecting rod.

[0014] In some embodiments, the second limiting block is the same size as the limiting groove.

[0015] In some embodiments, the connecting rod is provided with a handwheel for driving the connecting rod to rotate. Attached Figure Description

[0016] Fig. 1 A three-dimensional structural schematic diagram of the rotary gravity ball valve provided in the embodiments of this application; Fig. 2 A cross-sectional structural schematic diagram of the rotary gravity ball valve provided in the embodiments of this application; Fig. 3 This is an exploded view of the limiting component provided in the embodiments of this application; Fig. 4 A cross-sectional structural schematic diagram of the transmission component provided in the embodiments of this application; The following are the labeling elements in the figure: 1. Valve body; 11. Handwheel; 12. Connecting rod; 121. Transmission hole; 13. Connecting box; 14. Valve ball; 15. Rotating rod; 16. First limiting block; 17. Limiting groove; 18. Second limiting block; 2. Limiting assembly; 21. Fixing ring; 22. Fixing groove; 23. Transmission component; 231. Abutting plate; 232. Abutting spring; 233. Inclined block; 234. Transmission rod; 235. Transmission button; 236. Connecting tension spring. Detailed Implementation

[0017] In the related technology, the rotary gravity ball valve requires a continuous upward force to lift the ball valve during the initial rotation process. This requirement for continuous upward force makes the operation cumbersome and laborious. Operators need to apply an upward force while rotating the ball valve, making it impossible to easily and quickly complete the valve opening and closing operation, thus increasing operation time and labor costs.

[0018] Based on this, in order to improve the technical problem in the related technology that the valve stem needs to be continuously lifted during the rotation of the ball valve, and the requirement of continuous upward lifting makes the operation process cumbersome and laborious, the embodiments of this application provide the following solution.

[0019] Please refer to the following: Figs. 1 to 4 This application provides a rotary gravity ball valve, which includes a valve body 1, a valve ball 14, a rotating rod 15, a connecting box 13, a connecting rod 12, a first limiting block 16, a second limiting block 18, and a limiting assembly 2. The valve body 1 is used to support the parts; the valve ball 14 is rotatably disposed within the valve body 1; the rotating rod 15 is disposed on the valve ball 14 and is used to drive the valve ball 14 to rotate; the connecting box 13 is disposed on the connecting rod 12 and is used to drive the connecting rod 12 to rotate; one end of the connecting rod 12 passes through the connecting box 13 and is movable. The first limiting block 16 is fixedly installed in the upper wall of the connecting box 13, and the first limiting block 16 has a ring array of limiting grooves 17. The second limiting block 18 is installed on the connecting rod 12. The limiting component 2 is installed on the connecting rod 12, and is used to limit and fix the connecting rod 12 while it drives the connecting box 13 to rotate through the second limiting block 18 against the first limiting block 16, thereby reducing the need for a constant upward force to lift the connecting rod 12 during the rotation of the ball valve.

[0020] The rotary gravity ball valve provided in this application embodiment allows the user to control the valve's position by lifting the connecting rod 12 upwards during rotation. This causes the second limiting block 18 to abut against the limiting groove 17 in the first limiting block 16, thus limiting the position of the connecting rod 12 using the limiting component 2. During rotation, the second limiting block 18 on the connecting rod 12 abuts against the first limiting block 16, causing the connecting box 13 to rotate. The connecting box 13 then drives the rotating rod 15 to rotate, which in turn drives the valve ball 14 to rotate. After rotation, the limiting component 2 releases the position limitation on the connecting rod 12, allowing it to descend under gravity. This prevents accidental rotation of the connecting rod 12 and reduces force consumption during the process. Thus, by locking the position of the connecting rod 12 using the limiting component 2 and automatically releasing it after rotation, the valve can be reset by gravity, preventing accidental operation during non-operational periods. Furthermore, it reduces the need for constant upward lifting of the connecting rod 12 during valve rotation, thus avoiding operator fatigue.

[0021] In some embodiments, the limiting component 2 includes: a fixing ring 21 disposed on the upper wall of the connecting box 13, the fixing ring 21 having a fixing groove 22; and a transmission component 23 disposed inside the connecting rod 12, used to drive the connecting rod 12 through the fixing groove 22 to limit the position of the connecting rod 12.

[0022] With this configuration, during the upward lifting of the connecting rod 12, the position of the connecting rod 12 is limited by the transmission component 23 on the connecting rod 12 abutting against the limiting groove 17 on the fixing ring 21. Thus, through the rigid contact between the transmission component 23 and the limiting groove 17 of the fixing ring 21, the lifting height of the connecting rod 12 can be strictly limited to a preset position, avoiding positional deviation caused by uneven operating force or external vibration.

[0023] In some embodiments, the connecting rod 12 has a transmission hole 121, and the transmission component 23 includes: an abutment plate 231 disposed inside the connecting rod 12; an inclined block 233 passing through the transmission hole 121 and slidably disposed inside the connecting rod 12; an abutment spring 232, one end of which abuts against the abutment plate 231 and the other end of which abuts against the inclined block 233; and a transmission rod 234 movably disposed inside the connecting rod 12, one end of which abuts against the inclined block 233.

[0024] With this configuration, during the upward lifting of the connecting rod 12, the fixed ring 21 abuts against the inclined block 233, causing the inclined block 233 to compress the abutment spring 232. The inclined block 233 retracts backward, and when it abuts into the limiting groove 17 on the fixed ring 21, the abutment spring 232 rebounds, thereby fixing the position of the connecting rod 12 through the inclined block 233 and the fixed ring 21. This causes the second limiting block 18 on the connecting rod 12 to drive the connecting box 13 to rotate, and the connecting box 13 to drive the rotating rod 15 to rotate. Thus, when the inclined block 233 enters the limiting groove 17 of the fixed ring 21, the spring rebound provides an automatic locking function. The operator can complete the positioning without precisely controlling the lifting height or applying additional force, simplifying the operation steps and improving operational efficiency.

[0025] In some embodiments, a transmission button 235 is provided on the transmission rod 234 for pressing the transmission rod 234.

[0026] With this configuration, after the opening and closing operation is completed, pressing the transmission button 235 causes it to abut against the transmission rod 234, which in turn compresses the inclined block 233. This compresses the inclined block 233, causing it to abut against the spring 232, thus limiting the position between the inclined block 233 and the fixed ring 21. Consequently, the connecting rod 12 falls under the influence of gravity. Pressing the transmission button 235 releases the lock between the inclined block 233 and the fixed ring 21, allowing the operator to unlock the valve with just one hand, simplifying the operation. After pressing the button, the lock between the inclined block 233 and the fixed ring 21 is released, and the connecting rod 12 falls naturally under gravity, preventing accidental valve operation due to accidental touch or collision, and improving operational safety.

[0027] In some embodiments, the diameter of the transmission button 235 is smaller than the diameter of the transmission rod 234. A connecting spring 236 is provided on the transmission rod 234. One end of the connecting spring 236 is connected to the transmission rod 234, and the other end of the connecting spring 236 is connected to the inner wall of the connecting rod 12.

[0028] With this configuration, one end of the connecting spring 236 is connected to the transmission rod 234, and the other end is connected to the inner wall of the connecting rod 12. When the transmission button 235 is pressed, the spring provides an automatic reset force when the button is released, so that the transmission button 235 and the transmission rod 234 quickly return to their initial positions, avoiding the need for the operator to manually reset and simplifying the operation steps.

[0029] In some embodiments, the second limiting block 18 is the same size as the limiting groove 17.

[0030] With this configuration, the second limiting block 18 and the limiting groove 17 are exactly the same size, ensuring that they can be precisely aligned when they are engaged. The limiting groove 17 provides a precise guide path for the movement of the second limiting block 18, ensuring that the connecting rod 12 always moves along a predetermined trajectory during lifting and lowering, avoiding wear or jamming of the transmission components due to offset.

[0031] In some embodiments, a handwheel 11 is provided on the connecting rod 12 for driving the connecting rod 12 to rotate.

[0032] This design of the handwheel 11 allows the operator to apply a greater rotational torque. Compared to directly pushing or pulling the connecting rod 12 by hand, the handwheel 11 can amplify the operating force. Through the handwheel 11, the operator can utilize the lever principle to achieve a larger torque output with a smaller force, thereby reducing the intensity of operation.

[0033] The implementation principle of a rotary gravity ball valve according to an embodiment of this application is as follows: When using the rotary gravity ball valve, the user lifts the connecting rod 12 upward by turning the ball valve via the handwheel 11. This causes the second limiting block 18 to abut against the limiting groove 17 in the first limiting block 16. The fixing ring 21 abuts against the inclined block 233, causing the inclined block 233 to compress the abutment spring 232. The inclined block 233 retracts backward. When the inclined block 233 abuts against the limiting groove 17 on the fixing ring 21, the abutment spring 232 rebounds, thereby fixing the position of the connecting ring 12 via the inclined block 233 and the fixing ring 21. This causes the second limiting block 18 on the connecting rod 12 to drive the connecting box 13 to rotate, and the connecting box 13 to drive the rotating rod 15 to rotate. Rotating rod 15 drives valve ball 14 to rotate. After the opening and closing operation is completed, the transmission button 235 can be pressed to make the transmission button 235 abut against the transmission rod 234, causing the transmission rod 234 to compress the inclined block 233, which in turn compresses the abutting spring 232. The position between the contact inclined block 233 and the fixed ring 21 is limited, so that the connecting rod 12 falls under the action of gravity. One end of the connecting tension spring 236 is connected to the transmission rod 234, and the other end is connected to the inner wall of the connecting rod 12. When the transmission button 235 is pressed, the tension spring provides an automatic reset force when the button is released, so that the transmission button 235 and the transmission rod 234 quickly return to the initial position, avoiding accidental rotation of the connecting rod 12 and thus causing the valve ball 14 to rotate, while reducing the loss of force in the process.

[0034] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A rotary gravity ball valve, characterized in that, include: Valve body (1); The valve ball (14) is rotatably disposed inside the valve body (1); A rotating rod (15) is mounted on the valve ball (14) and is used to drive the valve ball (14) to rotate. A connecting box (13) and a connecting rod (12) are provided. The connecting box (13) is disposed on the connecting rod (12) and is used to drive the connecting rod (12) to rotate. One end of the connecting rod (12) passes through the connecting box (13) and is movably disposed inside the connecting box (13) to drive the connecting box (13) to rotate. The first limiting block (16) is fixedly installed on the upper wall of the connecting box (13), and the first limiting block (16) has a ring array of limiting grooves (17). The second limiting block (18) is disposed on the connecting rod (12); The limiting component (2) is provided on the connecting rod (12) and is used to limit and fix the connecting box (13) while the connecting rod (12) abuts against the first limiting block (16) through the second limiting block (18) to reduce the need for a force to lift the connecting rod (12) upward during the rotation of the ball valve.

2. A rotary gravity ball valve according to claim 1, characterized in that, The limiting component (2) includes: A fixing ring (21) is provided on the upper wall of the connecting box (13), and a fixing groove (22) is provided on the fixing ring (21). The transmission component (23) is disposed inside the connecting rod (12) and is used to drive the connecting rod (12) through the fixing groove (22) to limit the position of the connecting rod (12).

3. A rotary gravity ball valve according to claim 2, characterized in that: The connecting rod (12) has a transmission hole (121), and the transmission component (23) includes: An abutment plate (231) is disposed inside the connecting rod (12); The inclined block (233) passes through the transmission hole (121) and is slidably disposed in the connecting rod (12); The abutment spring (232) abuts against the abutment plate (231) at one end and against the inclined block (233) at the other end; The transmission rod (234) is movably disposed within the connecting rod (12), with one end abutting against the inclined block (233).

4. A rotary gravity ball valve according to claim 3, characterized in that: A transmission button (235) is provided on the transmission rod (234) for pressing the transmission rod (234).

5. A rotary gravity ball valve according to claim 4, characterized in that: The diameter of the transmission button (235) is smaller than the diameter of the transmission rod (234). A connecting spring (236) is provided on the transmission rod (234). One end of the connecting spring (236) is connected to the transmission rod (234), and the other end of the connecting spring (236) is connected to the inner wall of the connecting rod (12).

6. A rotary gravity ball valve according to claim 5, characterized in that: The second limiting block (18) is the same size as the limiting groove (17).

7. A rotary gravity ball valve according to claim 6, characterized in that: A handwheel (11) is provided on the connecting rod (12) for driving the connecting rod (12) to rotate.

Images