A three-piece ball valve capable of precisely regulating flow

Abstract

The utility model relates to a three -piece ball valve that can accurate flow regulation relates to ball valve technical field, including ball valve body, the upper end of ball valve body is provided with the adjusting cavity, is provided with transmission column in the adjusting cavity, is provided with the connecting assembly for connecting transmission column in transmission column inside, still is provided with the regulating assembly of accurate regulation three -piece ball valve through flow size of transmission column outer wall. The utility model can control the angle of handle deflection every time accurately through the regulating assembly, thereby makes the ball valve opening degree get accurate regulation, and further makes the flow regulation delicate, can control the connection and disconnection of handle and regulating assembly through the connecting assembly, thereby can regulate the opening degree and flow of ball valve quickly, widely after handle disconnects the connecting assembly.

Description

Technical Field

[0001] This application relates to the field of ball valve technology, and in particular to a three-piece ball valve capable of precisely regulating flow. Background Technology

[0002] As is well known, ball valves are widely used in my country in industries such as petroleum refining, long-distance pipelines, papermaking, pharmaceuticals, water conservancy, power, municipal engineering, and steel, playing a pivotal role in the national economy. They have a 90° rotation action, with a spherical plug body and a circular through hole or channel through its axis. They are widely used in water, acid, petroleum, and natural gas fields.

[0003] Existing manually controlled three-piece ball valves are generally used in conjunction with flow meters to regulate raw material flow. Although precise flow regulation can be achieved with the assistance of flow meters, the low precision of manual operation of the valve leads to repeated adjustments and calibrations. Therefore, a three-piece ball valve capable of precisely regulating flow is proposed. Utility Model Content

[0004] This application provides a three-piece ball valve capable of precisely adjusting flow rate, which can improve the technical problem in related technologies where the low precision of manual valve operation necessitates repeated adjustments and calibrations.

[0005] This application provides a three-piece ball valve capable of precisely adjusting flow rate, comprising a ball valve body, an adjusting cavity at the upper end of the ball valve body, a transmission column inside the adjusting cavity, a connecting assembly inside the transmission column for connecting the transmission column, and an adjusting assembly for precisely adjusting the flow rate of the three-piece ball valve on the outer wall of the transmission column. The adjusting assembly includes a ratchet ring, a connecting ring at one end of the ratchet ring, a driven wheel fixedly disposed on the side of the connecting ring away from the ratchet ring, a gear set disposed on the outer side of the driven wheel, the gear set being arranged in a circular array about the driven wheel, an adjusting gear disposed on the outer side of the driven wheel, the adjusting gear being arranged in a circular array about the driven wheel, the adjusting gear meshing and rotating with the gear set, one end of the adjusting gear being rotatably connected to the adjusting cavity, and a connecting column fixedly connected to the other end of the adjusting gear, a limit block fixedly connected to the end of the connecting column away from the adjusting gear, the limit block engaging the outer side of the ratchet ring on the side away from the connecting column.

[0006] Optionally, the limiting block has a rotating groove on the side near the ratchet ring, a rotating end is rotatably connected inside the rotating groove, an elastic element is provided inside the rotating groove, one end of the elastic element abuts against the rotating groove, and the other end of the elastic element abuts against the rotating end.

[0007] Optionally, a first elastic element is provided on the side of the limiting block away from the ratchet ring, and the end of the first elastic element away from the limiting block is fixedly connected to the inner wall of the adjustment cavity.

[0008] Optionally, a second elastic element is provided inside the adjusting gear near the adjusting cavity, with one end of the second elastic element fixedly connected to the adjusting gear and the other end of the second elastic element fixedly connected to the adjusting cavity.

[0009] Optionally, the inner wall of the ratchet ring is provided with limiting holes, and the limiting holes are distributed in a ring array about the ratchet ring.

[0010] Optionally, the connecting assembly includes a driven column that rotates inside the transmission column. A fixed ring is provided inside the transmission column, and a limit nut is provided inside the fixed ring. A threaded groove is provided at one end of the driven column, and a rotating component is fixedly connected to the end of the driven column away from the threaded groove. The driven column is threadedly connected to the limit nut.

[0011] Optionally, a limiting groove is formed inside the fixing ring, and the limiting groove is distributed in a ring array about the fixing ring, and the outer protruding part of the limiting nut slides inside the limiting groove.

[0012] Optionally, the outer wall of the fixing ring is provided with a sliding groove, and a locking block is provided inside the sliding groove, one end of the locking block being adapted to the limiting hole.

[0013] Optionally, the end of the engaging block away from the ratchet ring is inclined, and the inclined surface of the engaging block is fitted with the limit nut.

[0014] Optionally, sliding blocks are fixedly connected to both sides of the engaging block, one end of the sliding block abuts against a spring, and the end of the spring away from the sliding block abuts against the sliding groove.

[0015] Optionally, a handle is provided on the outside of the transmission column.

[0016] The beneficial effects of this utility model of a three-piece ball valve capable of precise flow adjustment are as follows: the adjustment component can precisely control the angle of each deflection of the handle, thereby enabling precise adjustment of the ball valve opening and thus fine flow adjustment; the connection component can control the connection and disconnection between the handle and the adjustment component, thereby enabling rapid and wide-range adjustment of the ball valve opening and flow after the handle is disconnected from the connection component. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of a three-piece ball valve capable of precisely adjusting flow rate, provided in an embodiment of this application;

[0018] Figure 2A schematic diagram of the frame structure of a three-piece ball valve capable of precisely adjusting flow rate, provided in an embodiment of this application;

[0019] Figure 3 A schematic diagram of the transmission column structure of a three-piece ball valve capable of precisely adjusting flow rate, provided in an embodiment of this application;

[0020] Figure 4 An exploded view of the regulating component of a three-piece ball valve capable of precisely regulating flow provided in an embodiment of this application;

[0021] Figure 5 A schematic cross-sectional view of the limiting block structure of a three-piece ball valve capable of precisely adjusting flow rate, provided in an embodiment of this application;

[0022] Figure 6 A partial cross-sectional view of the connection assembly of a three-piece ball valve capable of precisely adjusting flow rate, provided in an embodiment of this application;

[0023] Figure 7 The three-piece ball valve capable of precisely adjusting flow rate provided in the embodiments of this application Figure 6 A schematic diagram of the structure at point A;

[0024] The following are the labeling elements in the figure:

[0025] 1. Ball valve body; 11. Adjusting chamber; 12. Connecting plate;

[0026] 2. Drive column; 21. Handle; 22. Fixed end;

[0027] 3. Adjusting assembly; 30. Ratchet ring; 31. Limiting block; 311. Rotating end; 312. Rotating groove; 313. Elastic element; 32. First elastic element; 33. Driven wheel; 34. Connecting ring; 35. Gear set; 36. Adjusting gear; 37. Connecting column; 38. Second elastic element; 39. Limiting hole;

[0028] 4. Connecting component; 40. Rotating component; 41. Driven column; 42. Retaining ring; 43. Threaded groove; 44. Limit nut; 45. Limit groove; 46. Sliding groove; 47. Spring; 48. Engaging block; 49. Sliding block. Detailed Implementation

[0029] The following combination Figures 1-7 This utility model is described in further detail.

[0030] This embodiment discloses a three-piece ball valve capable of precisely adjusting flow rate: it includes a ball valve body 1, an adjustment chamber 11 is provided at the upper end of the ball valve body 1, a transmission column 2 is provided inside the adjustment chamber 11, a connecting component 4 for connecting the transmission column 2 is provided inside the transmission column 2, and an adjustment component 3 for precisely adjusting the flow rate of the three-piece ball valve is also provided on the outer wall of the transmission column 2.

[0031] Please see Figures 2 to 4 The adjusting component 3 includes a ratchet ring 30, with a connecting ring 34 at one end of the ratchet ring 30. A driven wheel 33 is fixedly mounted on the side of the connecting ring 34 away from the ratchet ring 30. A gear set 35 is mounted on the outside of the driven wheel 33, and the gear set 35 is arranged in a circular array about the driven wheel 33. An adjusting gear 36 is mounted on the outside of the driven wheel 33, and the adjusting gear 36 is arranged in a circular array about the driven wheel 33. The adjusting gear 36 meshes with the gear set 35 and rotates. One end of the adjusting gear 36 is rotatably connected to the adjusting cavity 11, and the other end of the adjusting gear 36 is fixedly connected to a connecting post 37. A limit block 31 is fixedly connected to the end of the connecting post 37 away from the adjusting gear 36. The side of the limit block 31 away from the connecting post 37 is engaged with the outside of the ratchet ring 30.

[0032] With this setup, the angle of each deflection of the handle can be precisely controlled by adjusting component 3, thereby allowing for precise adjustment of the ball valve opening and thus fine-tuning of the flow rate. The connection component 4 can control the connection and disconnection between the handle and adjusting component 3, allowing for rapid and wide-range adjustment of the ball valve opening and flow rate after the handle is disconnected from the connection component.

[0033] The limiting block 31 has a rotating groove 311 on the side near the ratchet ring 30. A rotating end 312 is rotatably connected inside the rotating groove 311. An elastic element 313 is provided inside the rotating groove 311. One end of the elastic element 313 abuts against the rotating groove 311, and the other end of the elastic element 313 abuts against the rotating end 312. When the adjusting gear 36 reverses and drives the limiting block 31 through the gap between multiple gear sets 35, the rotating end 312 inside the limiting block 31 applies pressure to the elastic element 313, causing the rotating end 312 to move into the rotating groove 311, thereby removing the restriction on the ratchet ring 30 and effectively preventing the ratchet ring from rotating back.

[0034] A first elastic element 32 is provided on the side of the limiting block 31 away from the ratchet ring 30. The end of the first elastic element 32 away from the limiting block 31 is fixedly connected to the inner wall of the adjusting cavity 11. When the limiting block 31 follows the adjusting gear 36 to limit the ratchet ring 30, the limiting block 31 drives the first elastic element 32 to pull inward. The elastic force of the first elastic element 32 is used to pre-tighten the limiting block 31. After the gear set 35 disengages from the adjusting gear 36, the first elastic element 32 drives the limiting block 31 back to its original position.

[0035] A second elastic element 38 is provided inside the adjusting gear 36 near the adjusting cavity 11. One end of the second elastic element 38 is fixedly connected to the adjusting gear 36, and the other end of the second elastic element 38 is fixedly connected to the adjusting cavity 11. Considering that the adjusting gear 36 would be stuck when the first elastic element 32 drives it to reverse, the second elastic element 38 is used to assist the first elastic element 32. After the gear set 35 disengages from the adjusting gear 36, the adjusting gear 36 drives the limit block 31 back to its original position.

[0036] The inner wall of the ratchet ring 30 is provided with limiting holes 39, which are arranged in a ring array about the ratchet ring 30. Multiple limiting holes 39 are used to engage with the connecting component 4.

[0037] Please see Figures 4 to 6 The connecting assembly 4 includes a driven column 41, which rotates inside the transmission column 2. A fixed ring 42 is located inside the transmission column 2, and a limit nut 44 is located inside the fixed ring 42. One end of the driven column 41 has a threaded groove 43, and a rotating component 40 is fixedly connected to the end of the driven column 41 away from the threaded groove 43. The driven column 41 is threadedly connected to the limit nut 44. When the ball valve needs to be fully opened in an emergency, the driven column 41 rotates inside the transmission column 2, and through the threaded groove 43 at its bottom, it drives the limit nut 44 to move downwards. The fixed ring 42 has a limit groove 45, which is arranged in a ring array about the fixed ring 42. The protruding part of the limit nut 44 slides inside the limit groove 45, and the limit groove 45 ensures the stability of the limit nut 44. The ball valve moves downwards. A sliding groove 46 is provided on the outer wall of the fixed ring 42. A locking block 48 is provided inside the sliding groove 46. One end of the locking block 48 is adapted to the limiting hole 39. When the limiting nut 44 moves downwards, the limiting nut 44 releases the limiting of the locking block 48. The end of the locking block 48 away from the ratchet ring 30 is inclined. The inclined surface of the locking block 48 is attached to the limiting nut 44. Sliding blocks 49 are fixedly connected to both sides of the locking block 48. A spring 47 is abutted at one end of the sliding block 49. The end of the spring 47 away from the sliding block 49 abuts against the sliding groove 46. The spring 47 provided inside the sliding groove 46 applies a preload force to the locking block 48. When the limiting nut 44 releases the pressure on the locking block 48, the spring 47 drives the locking block 48 to slide inwards, releasing the connection to the limiting hole 39, so that the ball valve can be opened and closed in one go.

[0038] A handle 21 is provided on the outside of the transmission column 2. The transmission column 2 is rotated by rotating the handle 21, which facilitates the adjustment of the ball valve.

[0039] The implementation principle of a three-piece ball valve capable of precise flow adjustment according to an embodiment of this application is as follows: When the handle is turned, the transmission column 2 rotates, which in turn drives the ratchet ring 30 engaged on the outside of the transmission column 2 to rotate. Simultaneously, the ratchet ring 30 rotates, which in turn drives the driven wheel 33 to rotate via the connecting ring 34. Furthermore, the gear set 35 disposed on the outside of the driven wheel 33 drives the adjusting gear 36 mounted on the side of the driven wheel 33 to mesh and rotate. Simultaneously, the adjusting gear 36 rotates, which in turn drives the connecting column 37 to move the limiting block 31 inward.

[0040] During one operation of the handle 21, before the engagement of the gear set 35 and the adjusting gear 36 is disengaged, the end of the limiting block 31 enters the tooth groove of the ratchet ring 30, so as to... Figure 4 Taking the perspective as an example, this causes the ratchet ring 30 to continue rotating clockwise. After the gear set 35 and the adjusting gear 36 are disengaged, the limiting block 31 abuts against the tooth groove slope of the ratchet ring 30, so that the limiting block 31 continues to slide along the tooth groove slope of the ratchet ring 30 until the end of the limiting block 31 completely abuts against the bottom of the tooth groove of the ratchet ring 30.

[0041] When the limiting block 31 comes into contact with the tooth groove of the ratchet ring 30, it is the deflection angle range allowed by the single operation of the handle 21. When the handle 21 is released, under the reset action of the second elastic element 38 and the first elastic element 32, the limiting block 31 deflects to the outside of the ratchet ring 30. Initially, since the end of the limiting block 31 and its end rotation groove 312 are both located in the tooth groove of the ratchet ring 30, the limiting block 31 will push the ratchet ring 30 to rotate slightly through the inclined surface of the tooth groove of the ratchet ring 30. When the limiting block 31 continues to deflect outward until only the rotation groove 312 contacts the tooth groove of the ratchet ring 30, the rotation groove 312 is compressed into the limiting block 31, and at this time the ratchet ring 30 no longer rotates.

[0042] Repeat the above operation to ensure that the angle of the handle 21 can be controlled each time.

[0043] When the ball valve encounters an emergency and needs to be quickly adjusted or fully opened, the driven column 41 rotates inside the transmission column 2, and then the threaded groove 43 at the bottom drives the limit nut 44 to move downward and disengage from the locking block 48. At the same time, the spring 47 inside the sliding groove 46 pushes the locking block 48 into the fixed ring 42, canceling the connection to the limiting hole 39, thereby disconnecting the connection between the handle 21 and the adjustment component 3, so that the handle 21 can be quickly and freely deflected, realizing the ball valve to be quickly adjusted or fully opened.

[0044] 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 three-piece ball valve capable of precisely regulating flow rate, comprising a ball valve body (1), characterized in that: The ball valve body (1) has an adjustment chamber (11) at the upper end. The adjustment chamber (11) is equipped with a transmission column (2). The transmission column (2) is equipped with a connecting component (4) for connecting the transmission column (2). The outer wall of the transmission column (2) is also equipped with an adjustment component (3) for precisely adjusting the flow rate of the three-piece ball valve. The adjustment assembly (3) includes a ratchet ring (30), a connecting ring (34) is provided at one end of the ratchet ring (30), a driven wheel (33) is fixedly provided on the side of the connecting ring (34) away from the ratchet ring (30), a gear set (35) is provided on the outside of the driven wheel (33), the gear set (35) is arranged in a ring array about the driven wheel (33), an adjustment gear (36) is provided on the outside of the driven wheel (33), the adjustment gear (36) is arranged in a ring array about the driven wheel (33), the adjustment gear (36) meshes with the gear set (35) and rotates, one end of the adjustment gear (36) is rotatably connected to the adjustment cavity (11), the other end of the adjustment gear (36) is fixedly connected to a connecting post (37), a limit block (31) is fixedly connected to the end of the connecting post (37) away from the adjustment gear (36), and the side of the limit block (31) away from the connecting post (37) is engaged with the outside of the ratchet ring (30).

2. The three-piece ball valve capable of precisely adjusting flow rate according to claim 1, characterized in that: The limiting block (31) has a rotating groove (312) on the side near the ratchet ring (30). A rotating end (311) is rotatably connected inside the rotating groove (312). An elastic element (313) is provided inside the rotating groove (312). One end of the elastic element (313) abuts against the rotating groove (312), and the other end of the elastic element (313) abuts against the rotating end (311).

3. A three-piece ball valve capable of precisely adjusting flow rate according to claim 1, characterized in that: The limiting block (31) is provided with a first elastic element (32) on the side away from the ratchet ring (30), and the end of the first elastic element (32) away from the limiting block (31) is fixedly connected to the inner wall of the adjustment cavity (11).

4. A three-piece ball valve capable of precisely adjusting flow rate according to claim 1, characterized in that: The adjusting gear (36) has a second elastic element (38) inside one end near the adjusting cavity (11). One end of the second elastic element (38) is fixedly connected to the adjusting gear (36), and the other end of the second elastic element (38) is fixedly connected to the adjusting cavity (11).

5. A three-piece ball valve capable of precisely adjusting flow rate according to claim 4, characterized in that: The ratchet ring (30) has a limiting hole (39) on its inner wall, and the limiting hole (39) is arranged in a ring array about the ratchet ring (30).

6. A three-piece ball valve capable of precisely adjusting flow rate according to claim 5, characterized in that: The connecting assembly (4) includes a driven column (41), which rotates inside the transmission column (2). A fixing ring (42) is provided inside the transmission column (2), and a limit nut (44) is provided inside the fixing ring (42). A threaded groove (43) is provided at one end of the driven column (41), and a rotating part (40) is fixedly connected to the end of the driven column (41) away from the threaded groove (43). The driven column (41) is threadedly connected to the limit nut (44).

7. A three-piece ball valve capable of precisely adjusting flow rate according to claim 6, characterized in that: The fixing ring (42) has a limiting groove (45) inside. The limiting groove (45) is arranged in a ring array about the fixing ring (42). The outer protruding part of the limiting nut (44) slides inside the limiting groove (45).

8. A three-piece ball valve capable of precisely adjusting flow rate according to claim 7, characterized in that: The outer wall of the fixed ring (42) is provided with a sliding groove (46), and a locking block (48) is provided inside the sliding groove (46). One end of the locking block (48) is adapted to the limiting hole (39).

9. A three-piece ball valve capable of precisely adjusting flow rate according to claim 8, characterized in that: The locking block (48) has an inclined surface at the end away from the ratchet ring (30), and the inclined surface of the locking block (48) is attached to the limit nut (44). Sliding blocks (49) are fixedly connected to both sides of the locking block (48). A spring (47) is abutted at one end of the sliding block (49), and the end of the spring (47) away from the sliding block (49) abuts the sliding groove (46).

10. A three-piece ball valve capable of precisely adjusting flow rate according to claim 9, characterized in that: A handle (21) is provided on the outside of the transmission column (2).

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