Ball valve for easy flow control

Abstract

The application provides a ball valve capable of conveniently controlling flow, which comprises a valve body, a valve seat, a ball, a valve rod and a driving mechanism; a flow channel is formed in the ball, the flow channel comprises a plurality of flow holes arranged in an array, the number of flow holes in each column is different, and the number of flow holes in each column is arranged in a gradually increasing trend from right to left; an adjusting structure is installed on the valve rod, the adjusting structure comprises a box body, the upper end of the valve rod is rotatably inserted into the box body, and a fine adjustment mechanism, a coarse adjustment mechanism and a conversion member are installed on the valve rod. According to the application, the conversion member is used to first select the coarse adjustment mechanism to drive the valve rod, so that the ball is adjusted to a general opening degree, and then the fine adjustment mechanism is selected to drive the valve rod, so that the opening degree of the ball is accurately adjusted, and the flow in the pipeline can be better controlled.

Description

Technical Field

[0001] This invention relates to the field of valve technology, and more specifically to a ball valve that facilitates flow control. Background Technology

[0002] A ball valve is a commonly used type of valve. Its structure generally includes a valve body, a valve seat, a ball, a valve stem, and a drive mechanism for rotating the valve stem. The valve body is provided with a valve cavity and a medium inlet and a medium outlet that communicate with the valve cavity. The ball is disposed in the valve cavity and connected to the valve stem.

[0003] For ordinary ball valves, the flow rate of fluid passing through the valve is generally adjusted by changing the opening degree of the ball within the valve chamber. However, in practical applications, it is only necessary to ensure that the ball is at a small opening degree to achieve the maximum flow rate. But this cannot provide precise flow control over the entire stroke, and its control over the flow value is quite limited. In existing technologies, to precisely adjust the flow rate in the pipeline, a flow regulating valve needs to be added, which undoubtedly increases the configuration cost of the pipeline. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention proposes a ball valve for convenient flow control, comprising a valve body, a valve seat, a ball, a valve stem, and a drive mechanism for rotating the valve stem. The valve body has a valve cavity and a medium inlet and a medium outlet communicating with the valve cavity. The ball is installed inside the valve cavity and connected to the valve stem. A flow channel is formed inside the ball, with both ends of the flow channel penetrating the ball. The flow channel includes multiple flow holes arranged in an array, with a different number of flow holes in each row, and the number of flow holes in each row gradually increases from right to left. An adjustment structure is installed on the valve stem, comprising a housing, with the upper end of the valve stem rotatably inserted into the housing. The valve stem is also equipped with a fine adjustment mechanism, a coarse adjustment mechanism, and a switching component.

[0005] The fine-tuning mechanism includes a first gear and a second gear that mesh with each other. The first gear is coaxially mounted on a central shaft, and the second gear is idling mounted on a valve stem. The coarse-tuning mechanism includes a third gear and a fourth gear that mesh with each other. The third gear is coaxially mounted on a central shaft, and the fourth gear is idling mounted on a valve stem. The shifting component is slidably mounted on the valve stem and is located between the second gear and the fourth gear. Both the upper and lower sides of the shifting component are connected to axially extending protrusions. The second gear and the fourth gear each have a groove on their side closest to the shifting component. The groove corresponds to the protrusion, allowing the protrusion to be inserted into the groove. The diameter ratio of the first gear and the second gear is smaller than the diameter ratio of the third gear and the fourth gear. A fifth gear is also coaxially mounted on the central shaft. The fifth gear meshes with an eighth gear, which is coaxially mounted on a support shaft. A sixth gear is also coaxially mounted on the support shaft and is connected to the drive device.

[0006] As an optimization, the valve stem has a coaxial inner groove with the opening facing upwards; a waist-shaped hole is provided on the valve stem located between the second gear and the fourth gear, the length direction of which is the same as the axial direction of the valve stem; an axially extending operating rod is installed in the inner groove of the valve stem, the upper end of which passes through the housing and extends out of the housing, and a radially extending connecting rod is provided on the outer side of the lower end of the operating rod, the connecting rod passing through the waist-shaped hole and connecting to the inner side of the transformation component.

[0007] As an optimization, an elastic cylinder is installed at the insertion point of the valve stem and the operating rod. The lower end of the elastic cylinder is sleeved with the valve stem, and the upper end of the elastic cylinder is sleeved with the operating rod. A clamping mechanism is provided on the elastic cylinder. The clamping mechanism includes a first notch that runs vertically through the elastic cylinder and a locking component for controlling the opening amplitude of the first notch. The locking component includes screw holes on the elastic cylinder located on the left and right sides of the first notch, and bolts that can pass through the two screw holes to fix the opening amplitude of the first notch.

[0008] As an optimization, the elastic cylinder includes an outer layer, a middle layer and an inner layer distributed from the outside to the inside; a hollow groove is provided on the side of the elastic cylinder opposite to the first notch, the hollow groove radially connects the inner layer and the middle layer, and the hollow groove connects the elastic cylinder vertically.

[0009] As an optimization, the locking components are two sets distributed vertically, and a second notch is also provided horizontally through the elastic cylinder located between the two sets of locking components.

[0010] As an optimization, the drive device includes multiple motors with the same rotation speed and direction of rotation, each motor is coaxially connected to a seventh gear, and each seventh gear meshes with a sixth gear.

[0011] As an optimization, the housing is provided with a frame, which includes two frame plates and a connecting column connecting the two frame plates. The frame plates have three through holes, and each through hole is equipped with a bearing. The valve stem, the rotating shaft and the support shaft are all rotatably connected to the frame plates through the bearings in the through holes. The motor is mounted on the frame plate.

[0012] As an optimization, a buffer groove is provided inside the sphere, which divides the flow hole into an inlet hole and an outlet hole, so that the inlet hole and the outlet hole are connected through the buffer groove.

[0013] As an optimization, the inner end of each inlet hole is connected to the upper side of the buffer groove, and the inner end of each outlet hole is connected to the lower side of the buffer groove. A docking cylinder with an upper opening is installed at the bottom of the buffer groove. A support cylinder is slidably fitted inside the docking cylinder. A pressure plate is fixedly installed at the upper end of the support cylinder. The horizontal height of the pressure plate is between the horizontal height of the inner end of the inlet hole and the horizontal height of the inner end of the outlet hole. A spring is provided between the outer bottom of the support cylinder and the inner bottom of the docking cylinder.

[0014] As an optimization, the depth of the middle of the upper surface of the pressure plate is deeper than the depth of its upper surface edge.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This application achieves linear adjustment between flow rate and ball opening by rotating the ball, thereby changing the number of flow holes on the ball connected to the medium inlet of the valve body and the number of flow outlet holes on the ball connected to the medium outlet.

[0017] 2. In this application, when the changing component is connected to the second gear alone, the fine-tuning mechanism drives the valve stem to rotate. At this time, without adjusting the drive device, the valve stem rotates at a slower speed, which facilitates precise control of the ball's opening and achieves a fine-tuning effect. When the changing component is connected to the fourth gear alone, the coarse-tuning mechanism drives the valve stem to rotate. At this time, without adjusting the drive device, the valve stem rotates at a faster speed, which facilitates coarse adjustment of the ball's opening. In this way, the rotational speed of the ball can be freely and flexibly controlled by pressing or pulling the operating lever to move the changing component up and down. In actual practice, the coarse-tuning structure can be selected first to adjust the ball to an approximate opening, and then the fine-tuning structure can be selected to precisely adjust the ball's opening, which can better control the flow rate in the pipeline.

[0018] 3. In this application, when it is necessary to adjust the valve stem under the drive control of the fine adjustment mechanism and the coarse adjustment mechanism, it is only necessary to loosen the bolt on the elastic cylinder so that the elastic cylinder no longer clamps the valve stem and the operating rod. After the selection is completed, the bolt on the elastic cylinder is loosened again so that the elastic cylinder clamps the valve stem and the operating rod, thereby fixing the position of the changing component on the operating rod.

[0019] 4. In this application, after the medium enters the buffer tank through the inlet hole, it flows out from the buffer tank to the outlet hole. This process continuously consumes the fluid energy of the medium and reduces the fluid pressure to prevent flash evaporation, reduce the occurrence of cavitation, and improve the service life of the sphere.

[0020] 5. In this application, by setting a pressure plate in the buffer tank, after the medium enters the buffer tank, it will first apply downward pressure to the pressure plate, causing the pressure plate to move downward continuously until the horizontal height of the pressure plate is lower than the horizontal height of the inner end of the outlet hole. At this time, the medium enters the outlet hole and flows out of the sphere. In this way, the medium can be further buffered in the buffer tank, which can further prevent flash evaporation, reduce the occurrence of cavitation, and improve the service life of the sphere. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0022] Figure 1 This is a schematic diagram of the overall structure of the ball valve for convenient flow control according to the present invention;

[0023] Figure 2 This is a schematic diagram of the internal components of the housing of the present invention;

[0024] Figure 3 This is a schematic diagram showing the cooperation of the fine adjustment mechanism, coarse adjustment mechanism, and transformation component of the present invention;

[0025] Figure 4 This is a schematic diagram illustrating the fit between the valve stem and the changing component of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the elastic cylinder of the present invention;

[0027] Figure 6 This is a schematic diagram of the external structure of the sphere of the present invention;

[0028] Figure 7 This is a schematic diagram of the internal structure of the sphere of the present invention. Detailed Implementation

[0029] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0030] Example: Figures 1-7As shown, a ball valve for convenient flow control includes a valve body 1, a valve seat, a ball 3, a valve stem 4, and a drive mechanism 5 for rotating the valve stem 4. The valve body 1 has a valve cavity and a medium inlet and a medium outlet communicating with the valve cavity. The ball 3 is installed in the valve cavity and connected to the valve stem 4. A flow channel 31 is opened in the ball 3, and both ends of the flow channel 31 penetrate the ball 3. The flow channel 31 includes a plurality of flow holes 310 arranged in an array, with a different number of flow holes 310 in each row, and the number of flow holes 310 in each row gradually increases from right to left. An adjustment structure 6 is installed on the valve stem 4. The adjustment structure 6 includes a housing 60. The upper end of the valve stem 4 is rotatably inserted into the housing 60, and the part of the valve stem 4 located in the housing 60 is equipped with a fine adjustment mechanism 61, a coarse adjustment mechanism 62, and a switching component 63.

[0031] The fine-tuning mechanism 61 includes a first gear 611 and a second gear 612 meshing with each other. The first gear 611 is coaxially mounted on the central shaft 64, and the second gear 612 is idling mounted on the valve stem 4. The coarse-tuning mechanism 62 includes a third gear 621 and a fourth gear 622 meshing with each other. The third gear 621 is coaxially mounted on the central shaft 64, and the fourth gear 622 is idling mounted on the valve stem 4. The changing member 63 is slidably mounted on the valve stem 4 and is located between the second gear 612 and the fourth gear 622. Both the upper and lower sides of the changing member 63 are connected to axially extending protrusions 63. 1. The second gear 612 and the fourth gear 622 are respectively provided with grooves on the side of themselves near the transformation member 63. The grooves correspond to the protrusion 631 so that the protrusion 631 can be inserted into the grooves. The diameter ratio of the first gear 611 and the second gear 612 is smaller than the diameter ratio of the third gear 621 and the fourth gear 622. A fifth gear 65 is also coaxially mounted on the central shaft 64. The fifth gear 65 meshes with an eighth gear 68. The eighth gear 68 is coaxially mounted on the support shaft 67. A sixth gear 66 is also coaxially mounted on the support shaft 67. The sixth gear 66 is connected to the drive device 7.

[0032] During implementation, the bottom of the housing 60 is connected to the top of the valve body 1 via a mounting post.

[0033] During implementation, the flow holes 310 are distributed in an arc-shaped array on the sphere.

[0034] In practice, the size of the medium inlet and the size of the sphere 3 are configured such that the medium inlet is small enough that it can only be aligned with one row of flow holes 310 at a time.

[0035] In this way, by rotating the ball, the number of flow holes on the ball connected to the medium inlet of the valve body and the number of flow outlet holes on the ball connected to the medium outlet are changed, achieving linear regulation between flow rate and ball opening. It is particularly important to note that when the changing component is connected only to the second gear, the fine-tuning mechanism drives the valve stem to rotate. In this case, without adjusting the drive device, the valve stem rotates at a slower speed, facilitating precise control of the ball opening and achieving a fine-tuning effect. When the changing component is connected only to the fourth gear, the coarse-tuning mechanism drives the valve stem to rotate. In this case, without adjusting the drive device, the valve stem rotates at a faster speed, facilitating coarse adjustment of the ball opening. Thus, by simply pressing or pulling the operating lever to move the changing component up and down, the rotational speed of the ball can be freely and flexibly controlled. In practical situations, the coarse-tuning structure can be selected first to adjust the ball to an approximate opening, and then the fine-tuning structure can be selected to precisely adjust the ball opening, resulting in better control of the flow rate in the pipeline.

[0036] In one embodiment of this application, the valve stem 4 has a coaxial inner groove with the opening facing upwards; a waist-shaped hole 41 is provided on the valve stem 4 located between the second gear 612 and the fourth gear 622, and the length direction of the waist-shaped hole 41 is the same as the axial direction of the valve stem 4; an axially extending operating rod 8 is installed in the inner groove of the valve stem 4, and the upper ends of both the valve stem 4 and the operating rod 8 penetrate through the housing 60 and extend outside the housing 60, with the upper end of the operating rod 8 protruding from the valve stem 4; a radially extending connecting rod 81 is provided on the outer side of the lower end of the operating rod 8, and the connecting rod 81 passes through the waist-shaped hole and is connected to the inner side of the transformation member 63.

[0037] Thus, when the operating lever is rotated, the connecting rod will drive the valve stem to rotate as well; when the operating lever is pressed or pulled, the connecting rod will move along the length of the oblong hole without moving the valve stem. In this embodiment, the length of the oblong hole is designed to be sufficient so that the protrusion of the changing component is already inserted into the groove of the second or fourth gear before the connecting rod reaches the end of the oblong hole. In practice, the protrusion 631 is designed as a magnetic component, and a magnetic sheet is installed in the groove to ensure that the protrusion 631 can be inserted into the groove relatively stably.

[0038] In one embodiment of this application, an elastic cylinder 9 is installed at the insertion point of the valve stem 4 and the operating rod 8. The lower end of the elastic cylinder 9 is sleeved with the valve stem 4, and the upper end of the elastic cylinder 9 is sleeved with the operating rod 8. A clamping mechanism 90 is provided on the elastic cylinder 9. The clamping mechanism 90 includes a first notch 901 that runs vertically through the elastic cylinder 9 and a locking component 900 for controlling the opening amplitude of the first notch 901. The locking component 900 includes screw holes 9001 on the elastic cylinder 9 located on the left and right sides of the first notch 901, and a bolt 9002 that can pass through the two screw holes 9001 to fix the opening amplitude of the first notch 901.

[0039] In this way, when the valve stem needs to be adjusted by the drive control of the fine adjustment mechanism and the coarse adjustment mechanism, it is only necessary to loosen the bolts on the elastic cylinder so that the elastic cylinder no longer clamps the valve stem and the operating rod. After the selection is completed, loosen the bolts on the elastic cylinder again so that the elastic cylinder clamps the valve stem and the operating rod, thereby fixing the position of the changing component on the operating rod.

[0040] In one embodiment of this application, the elastic cylinder 9 includes an outer layer 91, a middle layer 92, and an inner layer 93 distributed from the outside in. A perforated groove 94 is formed on the side of the elastic cylinder 9 opposite to the first notch 901. The perforated groove 94 radially penetrates the inner layer 93 and the middle layer 92, and the perforated groove 94 extends vertically through the elastic cylinder 9. In practice, the outer layer 91, the middle layer 92, and the inner layer 93 of the elastic cylinder 9 are all components made of elastic material. The elastic material only needs to satisfy the requirement that the outer layer 91, the middle layer 92, and the inner layer 93 have circumferential extensibility and radial elasticity.

[0041] In this way, the design of the inner and middle layers can better achieve the clamping and locking effect.

[0042] In one embodiment of this application, the locking components 900 are two sets distributed vertically, and a second notch 902 is provided horizontally through the elastic cylinder 9 located between the two sets of locking components 900.

[0043] This design, with two sets of locking components, results in a better locking effect; at the same time, the design of the second notch also allows the elastic cylinder to open better.

[0044] In one embodiment of this application, the drive device 7 includes a plurality of motors 71 with the same rotation speed and direction of rotation. Each motor 71 is coaxially connected to a seventh gear 72, and each seventh gear 72 meshes with a sixth gear 66.

[0045] This results in high transmission efficiency and low power loss.

[0046] In one embodiment of this application, a frame 69 is provided inside the housing 60. The frame 69 includes two frame plates 691 and a connecting column 692 connecting the two frame plates 691. The frame plates 691 have three through holes, and a bearing is installed in each through hole. The two ends of the valve stem 4, the rotating shaft 64 and the support shaft 67 are rotatably connected to the frame plates 691 through the bearings in the through holes. The motor 71 is mounted on the frame plate 691.

[0047] In one embodiment of this application, a buffer groove 32 is provided inside the sphere 3. The buffer groove 32 divides all the flow holes 310 into inlet holes 311 and outlet holes 312, so that the inlet holes 311 and outlet holes 312 are connected through the buffer groove 32.

[0048] In this way, after the medium enters the buffer tank through the inlet hole, it flows out of the outlet hole from the buffer tank. This process continuously consumes the energy of the medium fluid and reduces the fluid pressure to prevent flash evaporation, reduce cavitation, and improve the service life of the sphere.

[0049] In one embodiment of this application, the inner end of each inlet hole 311 is connected to the upper side of the buffer groove 32, and the inner end of each outlet hole 312 is connected to the lower side of the buffer groove 32. A docking cylinder 33 with an upper opening is installed at the bottom of the buffer groove 32. A support cylinder 34 is slidably fitted inside the docking cylinder 33. A pressure plate 35 is fixedly installed at the upper end of the support cylinder 34. The horizontal height of the pressure plate 35 is between the horizontal height of the inner end of the inlet hole 311 and the horizontal height of the inner end of the outlet hole 312. A spring 36 is provided between the outer bottom of the support cylinder 34 and the inner bottom of the docking cylinder 33.

[0050] During implementation, the bottom of the inner end of the outflow hole 312 is flush with the bottom of the buffer groove 32.

[0051] In practice, the inlet hole 311 is designed to gradually descend from the outside to the inside; the outlet hole 312 is designed to gradually descend from the inside to the outside.

[0052] In this way, by setting a pressure plate in the buffer tank, after the medium enters the buffer tank, it will first apply downward pressure to the pressure plate, causing the pressure plate to move downward continuously until the horizontal height of the pressure plate is lower than the horizontal height of the inner end of the outlet hole. At this time, the medium will then enter the outlet hole and flow out of the sphere. In this way, the medium can be further buffered in the buffer tank, which can further prevent flash evaporation, reduce the occurrence of cavitation, and improve the service life of the sphere.

[0053] In one embodiment of this application, the depth of the middle of the upper surface of the pressure plate 35 is greater than the depth of its edge. This results in the lowest position of the pressure plate 35 being located at its center.

[0054] In implementation, a leakage hole can also be provided at this lowest position. This allows the medium to leak out through the leakage hole before flowing out from the periphery of the pressure plate 35, ensuring that all the medium on the pressure plate 35 can drain out through the leakage hole, preventing any medium from accumulating on the pressure plate 35. It should be noted that in this embodiment, the diameter of the leakage hole is small, preventing the medium from leaking out completely directly, thus avoiding a situation where even with a large volume of medium, the pressure is insufficient to push the pressure plate 35 downwards. Specifically, after the valve body is closed, if the medium on the pressure plate 35 is insufficient to overcome the restoring force of the spring 36 below the pressure plate 35, the pressure plate 35 will gradually rise. This further improves the effect of allowing the remaining medium on the pressure plate 35 to drain out through the outlet hole 32 after passing through the leakage hole.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A ball valve for convenient flow control, comprising a valve body, a valve seat, a ball, a valve stem, and a drive mechanism for rotating the valve stem; the valve body has a valve cavity and a medium inlet and a medium outlet communicating with the valve cavity; the ball is installed in the valve cavity and connected to the valve stem; a flow channel is formed inside the ball, with both ends of the flow channel penetrating the ball; characterized in that, The flow channel includes multiple flow holes arranged in an array, with a different number of flow holes in each row, and the number of flow holes in each row gradually increases from right to left; the valve stem is equipped with an adjustment structure, which includes a housing, the upper end of the valve stem is rotatably inserted into the housing, and the valve stem is equipped with a fine adjustment mechanism, a coarse adjustment mechanism and a conversion component; The fine-tuning mechanism includes a first gear and a second gear that mesh with each other. The first gear is coaxially mounted on a central shaft, and the second gear is idling mounted on a valve stem. The coarse-tuning mechanism includes a third gear and a fourth gear that mesh with each other. The third gear is coaxially mounted on a central shaft, and the fourth gear is idling mounted on a valve stem. The shifting component is slidably mounted on the valve stem and is located between the second gear and the fourth gear. Both the upper and lower sides of the shifting component are connected to axially extending protrusions. The second gear and the fourth gear each have a groove on their side closest to the shifting component. The groove corresponds to the protrusion, allowing the protrusion to be inserted into the groove. The diameter ratio of the first gear and the second gear is smaller than the diameter ratio of the third gear and the fourth gear. A fifth gear is also coaxially mounted on the central shaft. The fifth gear meshes with an eighth gear, which is coaxially mounted on a support shaft. A sixth gear is also coaxially mounted on the support shaft and is connected to the drive device. The sphere is provided with a buffer groove, which divides the flow hole into an inlet hole and an outlet hole, so that the inlet hole and the outlet hole are connected through the buffer groove. The inner end of each inlet hole is connected to the upper side of the buffer groove, and the inner end of each outlet hole is connected to the lower side of the buffer groove. A docking cylinder with an open top is installed at the bottom of the buffer groove. A support cylinder is slidably fitted inside the docking cylinder. A pressure plate is fixedly installed at the upper end of the support cylinder. The horizontal height of the pressure plate is between the horizontal height of the inner end of the inlet hole and the horizontal height of the inner end of the outlet hole. A spring is provided between the bottom outer side of the support cylinder and the bottom inner side of the docking cylinder.

2. The ball valve for convenient flow control according to claim 1, characterized in that, The valve stem has a coaxial inner groove with the opening facing upwards; a waist-shaped hole is provided on the valve stem located between the second gear and the fourth gear, and the length direction of the waist-shaped hole is the same as the axial direction of the valve stem; an axially extending operating rod is installed in the inner groove of the valve stem, the upper end of the operating rod passes through the housing and extends out of the housing, and a radially extending connecting rod is provided on the outer side of the lower end of the operating rod, the connecting rod passes through the waist-shaped hole and is connected to the inner side of the transformation component.

3. A ball valve for convenient flow control according to claim 2, characterized in that, An elastic cylinder is installed at the joint between the valve stem and the operating rod. The lower end of the elastic cylinder is sleeved with the valve stem, and the upper end of the elastic cylinder is sleeved with the operating rod. A clamping mechanism is provided on the elastic cylinder. The clamping mechanism includes a first notch that runs vertically through the elastic cylinder and a locking component for controlling the opening range of the first notch. The locking component includes screw holes on the elastic cylinder located on the left and right sides of the first notch, and bolts that can pass through the two screw holes to fix the opening range of the first notch.

4. A ball valve for convenient flow control according to claim 3, characterized in that, The elastic cylinder includes an outer layer, a middle layer, and an inner layer distributed from the outside to the inside; a hollow groove is provided on the side of the elastic cylinder opposite to the first notch, the hollow groove radially connects the inner layer and the middle layer, and the hollow groove extends vertically through the elastic cylinder.

5. A ball valve for convenient flow control according to claim 3, characterized in that, The locking components are two sets distributed vertically, and a second notch is also provided horizontally through the elastic cylinder located between the two sets of locking components.

6. A ball valve for convenient flow control according to claim 1, characterized in that, The drive device includes multiple motors with the same rotation speed and direction of rotation. Each motor is coaxially connected to a seventh gear, and each seventh gear meshes with a sixth gear.

7. A ball valve for convenient flow control according to claim 6, characterized in that, The housing is equipped with a frame, which includes two frame plates and a connecting column connecting the two frame plates. Each frame plate has three through holes, and a bearing is installed in each through hole. The valve stem, the central shaft, and the support shaft are all rotatably connected to the frame plate through the bearings in the through holes. The motor is mounted on the frame plate.

8. A ball valve for convenient flow control according to claim 1, characterized in that, The depth of the middle of the upper surface of the pressure plate is greater than the depth of its upper surface edge.

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