Ball valve and regulating method capable of regulating liquid flow with high precision

Abstract

The application discloses a ball valve capable of adjusting liquid flow with high precision and an adjusting method, and relates to the technical field of ball valves.The ball valve comprises a first valve body and a second valve body, the first valve body and the second valve body are provided with first connecting holes on the side close to each other, the first connecting holes are provided with first screws inside, the second valve body is provided with a valve core inside, the valve core is provided with rubber pads on the two sides, the top of the valve core is provided with a mounting groove, the inner wall of the mounting groove is provided with a valve rod, and the top of the second valve body is fixedly connected with a connecting block.When the flow of the device needs to be adjusted, the handle needs to be lifted upwards first, then the handle can be rotated to adjust the flow, so that the stability of the handle can be ensured, the stability of the valve core can be further improved by the clamping of the round rod and the round hole, the precision of the flow adjustment can be ensured, and the flow can be accurately controlled by clamping the L-shaped plate into the rectangular grooves in different positions.

Description

Technical Field

[0001] This invention belongs to the field of ball valve technology, and in particular relates to a ball valve and a method for adjusting liquid flow with high precision. Background Technology

[0002] Ball valve: A valve in which the opening and closing element (ball) is driven by the valve stem and rotates around the valve axis. It can also be used for fluid regulation and control. Hard-seal V-type ball valves, with their V-shaped ball core and hard alloy-faced metal seat, possess strong shearing force, making them particularly suitable for media containing fibers, small solid particles, etc. Multi-port ball valves not only flexibly control the merging, splitting, and switching of flow directions in pipelines, but also allow the closure of any channel while connecting the other two.

[0003] Existing ball valves still have the following drawbacks when in use:

[0004] 1. When adjusting the liquid flow rate, the ball valve can only adjust the flow rate by turning the handle. However, after adjustment, the valve core cannot be stabilized, resulting in unstable flow rate.

[0005] 2. The adjustment accuracy is low, and the flow rate cannot be adjusted to the appropriate position according to the needs. Summary of the Invention

[0006] The purpose of this invention is to provide a ball valve and adjustment method for high-precision liquid flow adjustment. When the flow rate of the device needs to be adjusted, the handle needs to be lifted upwards before the handle can be rotated to adjust the flow rate, thereby ensuring the stability of the handle. At the same time, the engagement of the round rod and the round hole can further improve the stability of the valve core and ensure the accuracy of flow rate adjustment. Furthermore, the L-shaped plate can be inserted into the rectangular groove at different positions to precisely control the flow rate, thus solving the existing technical problems.

[0007] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0008] A ball valve and adjustment method for high-precision liquid flow rate adjustment include: a first valve body and a second valve body, each having a first connecting hole on one side close to the other, a first screw inside the first connecting hole, a valve core inside the second valve body, rubber pads on both sides of the valve core, a mounting groove on the top of the valve core, a valve stem on the inner wall of the mounting groove, a connecting block fixedly connected to the top of the second valve body, a connecting plate fixedly connected to the top of the connecting block via a connecting assembly, an inner connecting block fixedly connected to the top of the valve stem and passing through the connecting block, a top cover fixedly connected to the top of the connecting plate, a top of the inner connecting block rotatably connected to the bottom of the top cover, an inner cylinder rotatably sleeved on the outer wall of the inner connecting block, a handle slidably sleeved on the outer wall of the inner cylinder, and a braking assembly for braking the handle on the top of the handle.

[0009] The top of the connecting plate is also provided with a fixing component for fixing the valve core;

[0010] The connecting plate has two symmetrically arranged third connecting holes inside, and the third connecting holes are equipped with a retaining component to ensure the state of the ball valve.

[0011] Optionally, the connecting assembly includes mounting holes formed inside the connecting plate and the connecting block, with a second screw threaded into the mounting hole.

[0012] Optionally, the braking assembly includes an L-shaped plate fixedly connected to the top of the handle, the top of the upper cover has multiple rectangular slots that engage with the L-shaped plate, and the top of the upper cover has multiple scale lines that cooperate with the rectangular slots.

[0013] Optionally, the fixing component includes a round rod that slides through the connecting plate, the bottom of the round rod extending into the interior of the valve core, the top of the valve core having multiple round holes that engage with the round rod, the top of the round rod being fixedly connected to an arc-shaped plate, and the bottom of the arc-shaped plate being fixedly connected to the top of the connecting plate with the same first spring, the first spring being sleeved on the round rod.

[0014] Optionally, the top of the connecting plate is fixedly connected to two symmetrically arranged fixing blocks, the top of the fixing blocks is provided with through holes, and the bottom of the arc-shaped plate is fixedly connected to two symmetrically arranged rectangular pieces, the rectangular pieces engaging with the through holes.

[0015] Optionally, the retaining assembly includes a sliding rod slidably connected inside the third connecting hole. A limiting plate is fixedly connected to the bottom of the sliding rod. The same tension spring is fixedly connected between the top of the limiting plate and the bottom of the connecting plate. The tension spring is sleeved on the sliding rod. A third screw is threaded through one side of the connecting plate and extends into the interior of the third connecting hole. A threaded groove for cooperating with the third screw is provided on one side of the sliding rod. A second connecting hole for cooperating with the sliding rod is provided at one end of the handle.

[0016] Optionally, a circular plate is fixedly connected to the top of the inner cylinder, and a second spring is fixedly connected between the circular plate and the handle, the second spring being sleeved on the inner cylinder.

[0017] A method for regulating a ball valve capable of precisely adjusting liquid flow rate includes the following steps:

[0018] S1. When it is necessary to adjust the flow rate of the device, the handle can be pulled vertically upward. The handle squeezes the second spring and slides upward on the inner cylinder. At the same time, the handle drives the L-shaped plate to move vertically upward. The L-shaped plate is no longer locked with the rectangular groove. At this time, the brake state of the handle is released, and the handle can be rotated. The handle drives the inner cylinder to rotate, the inner cylinder drives the inner connecting block to rotate, the inner connecting block drives the valve stem to rotate, and the valve stem drives the valve core to rotate, thereby adjusting the flow rate of the device.

[0019] S2. At the same time, after the handle rises, it no longer presses against the arc plate. Under the elastic force of the first spring, the arc plate moves vertically upward. The arc plate drives the round rod to move vertically upward. The round rod is no longer engaged with the round hole. At this time, the braking state of the valve core can be released, and the valve core angle can be adjusted. After the handle is released, the rectangular groove engages with the L-shaped plate, and the round rod engages with the round hole. This can improve the stability of the device from two directions, thereby ensuring the accuracy of the adjustment.

[0020] S3. When the device needs to be kept normally closed or normally open, unscrew the third screw. The limiting plate moves vertically upward under the tension of the tension spring. The limiting plate drives the sliding rod to move vertically upward. The sliding rod is inserted into the second connecting hole. This can prevent the handle from becoming loose.

[0021] The embodiments of the present invention have the following beneficial effects:

[0022] When the flow rate of the device needs to be adjusted, the handle must be lifted upwards first before it can be rotated to adjust the flow rate. This ensures the stability of the handle. At the same time, the engagement of the round rod and the round hole further improves the stability of the valve core, ensuring the accuracy of the flow rate adjustment. Furthermore, the L-shaped plate can be inserted into the rectangular slots at different positions for precise flow rate control.

[0023] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of a three-dimensional exploded structure according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the valve core structure in one embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the valve core and valve stem in one embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of an arc-shaped plate according to an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the handle and the top cover in one embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the structure of the upper cover and the inner connecting block in one embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the connecting plate in one embodiment of the present invention.

[0033] In the diagram: 1. First valve body; 2. First screw; 3. Second valve body; 4. Top cover; 5. Handle; 6. First connecting hole; 7. Rubber pad; 8. Valve core; 9. Second screw; 10. Connecting plate; 11. Valve stem; 12. Round hole; 13. Mounting groove; 14. Round rod; 15. L-shaped plate; 16. Connecting block; 17. Arc plate; 18. Fixing block; 19. First spring; 20. Through hole; 21. Rectangular piece; 22. Second connecting hole; 23. Rectangular groove; 24. Scale line; 25. Round plate; 26. Inner cylinder; 27. Second spring; 28. Third connecting hole; 29. ​​Sliding rod; 30. Tension spring; 31. Limiting plate; 32. Threaded groove; 33. Third screw; 34. Inner connecting block. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] In the description of this invention, it should be understood that the terms "opening", "upper", "middle", "length", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0036] To keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of known functions and known components are omitted.

[0037] Example 1

[0038] Please see Figure 1-3 As shown, this embodiment provides a ball valve and adjustment method for high-precision liquid flow rate adjustment, including: a first valve body 1 and a second valve body 3. The first valve body 1 and the second valve body 3 are provided with a first connecting hole 6 on their respective sides. A first screw 2 is provided inside the first connecting hole 6. A valve core 8 is provided inside the second valve body 3. Rubber pads 7 are provided on both sides of the valve core 8. An installation groove 13 is provided on the top of the valve core 8. A valve stem 11 is provided on the inner wall of the installation groove 13. A connecting block 16 is fixedly connected to the top of the second valve body 3. A connecting plate 10 is fixedly connected to the top of the connecting block 16 through a connecting assembly. An inner connecting block 34 is fixedly connected to the top of the valve stem 11 and passes through the connecting block 16. A top cover 4 is fixedly connected to the top of the connecting plate 10. The top of the inner connecting block 34 is rotatably connected to the bottom of the top cover 4. An inner cylinder 26 is rotatably sleeved on the outer wall of the inner connecting block 34. A handle 5 is slidably sleeved on the outer wall of the inner cylinder 26. A braking assembly for braking the handle 5 is provided on the top of the handle 5.

[0039] The top of the connecting plate 10 is also provided with a fixing component for fixing the valve core 8;

[0040] The connecting plate 10 has two symmetrically arranged third connecting holes 28 inside, and the third connecting holes 28 are provided with a retaining component to ensure the state of the ball valve.

[0041] In one aspect of this embodiment, such as Figure 2 As shown, the connecting assembly includes mounting holes formed inside the connecting plate 10 and the connecting block 16, with a second screw 9 threaded into the mounting hole.

[0042] In one aspect of this embodiment, such as Figure 4-5 As shown, the braking assembly includes an L-shaped plate 15 fixedly connected to the top of the handle 5. The top of the upper cover 4 has multiple rectangular slots 23 that engage with the L-shaped plate 15. The top of the upper cover 4 also has multiple scale lines 24 that cooperate with the rectangular slots 23. Simultaneously, the handle 5 moves the L-shaped plate 15 vertically upwards, and the L-shaped plate 15 no longer engages with the rectangular slots 23. At this point, the braking state of the handle 5 is released, and the handle 5 can be rotated. The handle 5 drives the inner cylinder 26 to rotate, the inner cylinder 26 drives the inner connecting block 34 to rotate, the inner connecting block 34 drives the valve stem 11 to rotate, and the valve stem 11 drives the valve core 8 to rotate, thereby adjusting the flow rate of the device.

[0043] In another aspect of this embodiment, such as Figure 5-6 As shown, the fixing assembly includes a round rod 14 that slides through the connecting plate 10. The bottom of the round rod 14 extends into the interior of the valve core 8. The top of the valve core 8 has multiple round holes 12, which engage with the round rod 14. An arc-shaped plate 17 is fixedly connected to the top of the round rod 14. The bottom of the arc-shaped plate 17 and the top of the connecting plate 10 are fixedly connected to the same first spring 19. The first spring 19 is sleeved on the round rod 14. After the handle 5 is raised, the handle 5 no longer presses the arc-shaped plate 17. Under the elastic force of the first spring 19, the arc-shaped plate 17 moves vertically upward. The arc-shaped plate 17 drives the round rod 14 to move vertically upward. The round rod 14 no longer engages with the round holes 12. At this time, the braking state of the valve core 8 can be released, and the angle of the valve core 8 can be adjusted. After the handle 5 is released, the rectangular groove 23 engages with the L-shaped plate 15, and the round rod 14 engages with the round holes 12. This can improve the stability of the device from two directions, thereby ensuring the accuracy of the adjustment.

[0044] In other aspects of this embodiment, such as Figure 6 As shown, the retaining assembly includes a sliding rod 29 slidably connected inside the third connecting hole 28. A limiting plate 31 is fixedly connected to the bottom of the sliding rod 29. The same tension spring 30 is fixedly connected between the top of the limiting plate 31 and the bottom of the connecting plate 10. The tension spring 30 is sleeved on the sliding rod 29. A third screw 33 is threaded through one side of the connecting plate 10 and extends into the interior of the third connecting hole 28. A threaded groove 32 that mates with the third screw 33 is provided on one side of the sliding rod 29. A second connecting hole 22 that mates with the sliding rod 29 is provided at one end of the handle 5.

[0045] Example 2

[0046] Improvements based on Example 1: See Appendix Figure 5The top of the connecting plate 10 is fixedly connected to two symmetrically arranged fixing blocks 18, and the top of the fixing blocks 18 is provided with through holes 20. The bottom of the arc plate 17 is fixedly connected to two symmetrically arranged rectangular pieces 21, and the rectangular pieces 21 are engaged with the through holes 20.

[0047] Example 3

[0048] Improvements based on Example 1: See Appendix Figure 7-8 A circular plate 25 is fixedly connected to the top of the inner cylinder 26. The same second spring 27 is fixedly connected between the circular plate 25 and the handle 5. The second spring 27 is sleeved on the inner cylinder 26. When it is necessary to adjust the flow rate of the device, the handle 5 can be pulled vertically upward. The handle 5 squeezes the second spring 27 and slides upward on the inner cylinder 26.

[0049] A method for regulating a ball valve capable of precisely adjusting liquid flow rate includes the following steps:

[0050] S1. When it is necessary to adjust the flow rate of the device, the handle 5 can be pulled vertically upward. The handle 5 squeezes the second spring 27 and slides upward on the inner cylinder 26. At the same time, the handle 5 drives the L-shaped plate 15 to move vertically upward. The L-shaped plate 15 is no longer engaged with the rectangular groove 23. At this time, the braking state of the handle 5 is released, and the handle 5 can be rotated. The handle 5 drives the inner cylinder 26 to rotate, the inner cylinder 26 drives the inner connecting block 34 to rotate, the inner connecting block 34 drives the valve stem 11 to rotate, and the valve stem 11 drives the valve core 8 to rotate, thereby adjusting the flow rate of the device.

[0051] S2. At the same time, after the handle 5 rises, the handle 5 no longer presses the arc plate 17. Under the elastic force of the first spring 19, the arc plate 17 moves vertically upward. The arc plate 17 drives the round rod 14 to move vertically upward. The round rod 14 is no longer engaged with the round hole 12. At this time, the braking state of the valve core 8 can be released, and the angle of the valve core 8 can be adjusted. After the handle 5 is released, the rectangular groove 23 engages with the L-shaped plate 15, and the round rod 14 engages with the round hole 12. The stability of the device can be improved from two directions, thereby ensuring the accuracy of the adjustment.

[0052] S3. When the device needs to be kept normally closed or normally open, the third screw 33 is unscrewed. Under the tension of the tension spring 30, the limiting plate 31 moves vertically upward. The limiting plate 31 drives the sliding rod 29 to move vertically upward. The sliding rod 29 is inserted into the interior of the second connecting hole 22. At this time, the handle 5 can be prevented from becoming loose.

[0053] It should be noted that in the description of this specification, descriptions such as "first" and "second" are only used to distinguish the features and do not have any actual order or directional meaning. This application is not limited to this.

[0054] 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 invention. In this specification, 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.

[0055] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A ball valve capable of precisely regulating liquid flow rate, characterized in that, include: The first valve body (1) and the second valve body (3) are provided with a first connecting hole (6) on the side of the first valve body (1) and the second valve body (3) that are close to each other. A first screw (2) is provided inside the first connecting hole (6). A valve core (8) is provided inside the second valve body (3). Rubber pads (7) are provided on both sides of the valve core (8). An installation groove (13) is provided on the top of the valve core (8). A valve stem (11) is provided on the inner wall of the installation groove (13). A connecting block (16) is fixedly connected to the top of the second valve body (3). The top of the connecting block (16) is fixedly connected to the connecting plate (10) via the connecting assembly. The top of the valve stem (11) is fixedly connected to the inner connecting block (34) and passes through the connecting block (16). The top of the connecting plate (10) is fixedly connected to the top cover (4). The top of the inner connecting block (34) is rotatably connected to the bottom of the top cover (4). The outer wall of the inner connecting block (34) is rotatably fitted with the inner cylinder (26). The outer wall of the inner cylinder (26) is slidably fitted with the handle (5). The top of the handle (5) is provided with a braking assembly for braking the handle (5). The top of the connecting plate (10) is also provided with a fixing component for fixing the valve core (8); The connecting plate (10) has two symmetrically arranged third connecting holes (28) inside, and the third connecting holes (28) are provided with a retaining component to ensure the state of the ball valve. The braking assembly includes an L-shaped plate (15) fixedly connected to the top of the handle (5), and the top of the cover (4) is provided with a plurality of rectangular slots (23), which engage with the L-shaped plate (15). The top of the cover (4) is provided with a plurality of scale lines (24), which cooperate with the rectangular slots (23). The fixing assembly includes a round rod (14) that slides through the connecting plate (10). The bottom of the round rod (14) extends into the interior of the valve core (8). The top of the valve core (8) has multiple round holes (12) that engage with the round rod (14). An arc plate (17) is fixedly connected to the top of the round rod (14). The bottom of the arc plate (17) and the top of the connecting plate (10) are fixedly connected to the same first spring (19), which is sleeved on the round rod (14).

2. The ball valve for high-precision liquid flow adjustment as described in claim 1, characterized in that, The connecting assembly includes mounting holes formed inside the connecting plate (10) and the connecting block (16), with a second screw (9) threaded inside the mounting holes.

3. The ball valve for high-precision liquid flow adjustment as described in claim 2, characterized in that, The top of the connecting plate (10) is fixedly connected to two symmetrically arranged fixing blocks (18), and the top of the fixing blocks (18) is provided with a through hole (20). The bottom of the arc plate (17) is fixedly connected to two symmetrically arranged rectangular pieces (21), and the rectangular pieces (21) engage with the through hole (20).

4. The ball valve for high-precision liquid flow adjustment as described in claim 3, characterized in that, The retaining assembly includes a sliding rod (29) slidably connected inside the third connecting hole (28). A limiting plate (31) is fixedly connected to the bottom of the sliding rod (29). A tension spring (30) is fixedly connected between the top of the limiting plate (31) and the bottom of the connecting plate (10). The tension spring (30) is sleeved on the sliding rod (29). A third screw (33) is threaded through one side of the connecting plate (10). The third screw (33) extends into the interior of the third connecting hole (28). A threaded groove (32) is provided on one side of the sliding rod (29) to cooperate with the third screw (33). A second connecting hole (22) is provided at one end of the handle (5) to cooperate with the sliding rod (29).

5. A ball valve for high-precision adjustment of liquid flow rate as described in claim 4, characterized in that, A circular plate (25) is fixedly connected to the top of the inner cylinder (26), and a second spring (27) is fixedly connected between the circular plate (25) and the handle (5). The second spring (27) is sleeved on the inner cylinder (26).

6. The method for adjusting a ball valve capable of high-precision liquid flow rate as described in claim 5, characterized in that, Specifically, the following steps are included: S1. When it is necessary to adjust the flow rate of the device, the handle (5) can be pulled vertically upward. The handle (5) squeezes the second spring (27) and slides upward on the inner cylinder (26). At the same time, the handle (5) drives the L-shaped plate (15) to move vertically upward. The L-shaped plate (15) is no longer engaged with the rectangular groove (23). At this time, the braking state of the handle (5) is released, and the handle (5) can be rotated. The handle (5) drives the inner cylinder (26) to rotate. The inner cylinder (26) drives the inner connecting block (34) to rotate. The inner connecting block (34) drives the valve stem (11) to rotate. The valve stem (11) drives the valve core (8) to rotate, thereby adjusting the flow rate of the device. S2. At the same time, after the handle (5) rises, the handle (5) no longer presses the arc plate (17). The arc plate (17) moves vertically upward under the elastic force of the first spring (19). The arc plate (17) drives the round rod (14) to move vertically upward. The round rod (14) no longer engages with the round hole (12). At this time, the braking state of the valve core (8) can be released, and the angle of the valve core (8) can be adjusted. After the handle (5) is released, the rectangular groove (23) engages with the L-shaped plate (15), and the round rod (14) engages with the round hole (12). The stability of the device can be improved from two directions, thereby ensuring the accuracy of the adjustment. S3. When the device needs to be kept normally closed or normally open, the third screw (33) is unscrewed. The limiting plate (31) moves vertically upward under the pulling force of the tension spring (30). The limiting plate (31) drives the sliding rod (29) to move vertically upward. The sliding rod (29) is inserted into the interior of the second connecting hole (22). At this time, the handle (5) can be prevented from becoming loose.

Images