Three-way ball valve structure with self-locking structure and adjusting method thereof

Abstract

The application relates to the technical field of three-way valves, in particular to a three-way ball valve structure with a self-locking structure and a regulating method thereof, which comprises a valve body, a valve rod rotatably arranged on the valve body, a ball rotatably arranged in the valve body, and the ball being fixedly connected with one end of the valve rod; the other end of the valve rod is provided with a driving rod through a connecting structure; a frame is fixedly arranged on the valve body; a locking assembly is arranged between the driving rod and the frame; a support is fixedly arranged on the frame; a rotating cylinder is rotatably arranged on the support; a delay transmission structure is arranged between the driving rod and the rotating cylinder; an unlocking assembly is arranged between the rotating cylinder and the driving rod; a high-pressure prevention assembly is arranged in the valve body and connected with the rotating cylinder through a linkage structure; the locking assembly has the functions of self-locking and delay in switching the connecting pipeline; compared with the traditional one, the design can avoid the waste of medium caused by the misoperation or misoperation of personnel and improve the safety performance.

Description

Technical Field

[0001] This invention relates to the field of three-way valve technology, specifically a three-way ball valve structure with a self-locking mechanism and its adjustment method. Background Technology

[0002] A three-way ball valve is a multi-functional valve. It is frequently used for diverting, merging, and reversing media. Based on the shape of the ball core flow channel, it is divided into L-type and T-type. The L-type can only connect two orthogonal pipes and cannot simultaneously maintain the connection of a third pipe; it only serves a distribution function. The T-type can connect three orthogonal pipes and disconnect a third channel, serving both diverting and merging functions.

[0003] The Importance of the Self-Locking Function of Three-Way Ball Valves: 1. Ensuring Stable Media Flow: The self-locking function ensures that in the event of a power outage or gas supply interruption, the ball of the three-way ball valve maintains its current position, thus preserving the stability of the media flow. 2. Improving System Reliability: The self-locking function enhances the reliability of the three-way ball valve under complex operating conditions, preventing changes in valve position caused by external factors from affecting the normal operation of the system. 3. Ensuring Industrial Production Safety: In industries such as chemical and petroleum, sudden changes in media flow can lead to safety accidents. The self-locking function helps reduce such risks and ensures the safety of industrial production.

[0004] However, while current three-way ball valves have a self-locking function, they need to be unlocked when switching connecting pipelines to facilitate adjustment. Since the unlocking process of existing three-way ball valves is usually instantaneous, the rapid switching process may lead to accidents, such as human error or accidental contact, resulting in media waste. Furthermore, three-way ball valves are commonly used in harsh environments such as oil, chemical, and natural gas industries, characterized by high pressure, high temperature, and high corrosion. Therefore, under high pressure, the sealing performance of the three-way ball valve is crucial to ensuring the safe operation of the system. A high-pressure resistant design effectively prevents media leakage and provides a reliable sealing effect. Summary of the Invention

[0005] The purpose of this invention is to provide a three-way ball valve structure with a self-locking mechanism and its adjustment method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A three-way ball valve structure with a self-locking mechanism includes a valve body and a valve stem rotatably mounted on the valve body. A ball is movably mounted inside the valve body, and one end of the valve stem is fixedly connected to the ball.

[0008] The other end of the valve stem is provided with a drive rod through a connecting structure. Under the action of the connecting structure, the valve stem and the drive rod can slide relative to each other, and when the drive rod rotates, the valve stem will rotate accordingly.

[0009] A frame is fixedly mounted on the valve body, and the frame is sleeved on the outside of the drive rod. A locking assembly is provided between the drive rod and the frame, which prevents the drive rod from rotating.

[0010] A bracket is fixedly installed on the frame, and a rotating cylinder is rotatably installed on the bracket. The rotating cylinder is sleeved outside the drive rod. A delay transmission structure is provided between the drive rod and the rotating cylinder. Under the action of the delay transmission structure, when the rotating cylinder rotates, the drive rod will first remain stationary and then follow the rotating cylinder to rotate. A handle is fixedly installed on the outer wall of the rotating cylinder.

[0011] An unlocking component is provided between the rotating drum and the driving rod. When the rotating drum rotates, the unlocking component will drive the driving rod to slide relative to the valve rod. At the same time, the locking component will release the rotation lock on the driving rod during the sliding process.

[0012] The valve body is equipped with a high-pressure protection component, which can seal the inside of the valve body. The high-pressure protection component is connected to the rotating drum through a linkage structure. When the rotating drum rotates, the high-pressure protection component will be activated by the linkage structure, thereby putting the valve body in a conductive state.

[0013] As a further embodiment of the present invention: the connection structure includes a square block fixedly disposed at one end of the drive rod, and a square groove is formed inside the valve rod along its length direction, and the square block is located in the square groove and slides in cooperation with each other.

[0014] As a further embodiment of the present invention: the locking assembly includes a disc fixedly mounted on the drive rod and a groove formed on the frame, wherein the disc is located inside the groove;

[0015] A spring is fitted on the outer wall of the drive rod. The two ends of the spring abut against the frame and the disc, respectively. The spring is in a compressed state, and the disc will always tend to move into the groove under the action of the spring.

[0016] As a further embodiment of the present invention: the circumferential surface of the disk is fixedly provided with teeth, the number of teeth is multiple, and the multiple teeth are evenly distributed along the circumferential direction of the disk.

[0017] The groove has a toothed surface on its circumferential surface. There are multiple toothed grooves, and the multiple toothed grooves are evenly distributed along the circumferential direction of the groove.

[0018] The teeth are located in the tooth grooves, so that the disk cannot rotate.

[0019] As a further embodiment of the present invention: the delayed transmission structure includes a limiting post fixedly disposed on its outer wall along the length direction of the drive rod and an arc-shaped sliding groove formed on the inner wall of the rotating cylinder, wherein the limiting post is located inside the arc-shaped sliding groove;

[0020] Wherein, the diameter of the arc-shaped groove along the length of the rotating cylinder is greater than the length of the limiting post.

[0021] As a further embodiment of the present invention: the unlocking component includes a float plate rotatably disposed on the outer wall of the drive rod and two threaded rods rotatably disposed on the frame, both of the threaded rods being threadedly engaged with the float plate, and the threaded rods being parallel to the drive rod;

[0022] A gear ring is fixedly installed on the outer wall of the rotating drum, and gears are fixedly installed at the ends of the two threaded rods, with the two gears meshing with the gear ring.

[0023] As a further embodiment of the present invention: the anti-high pressure component includes an annular ring fixedly disposed inside the valve body and a sealing seat disposed inside the valve body and abutting against the annular ring on one side, wherein the size of the sealing seat is larger than the opening size of the annular ring;

[0024] A guide rod is fixedly installed inside the valve body, and the sealing seat is slidably installed on the guide rod. A lead screw is rotatably installed inside the valve body, and the sealing seat is threadedly engaged with the lead screw. A first bevel gear is fixedly installed on the outer wall of the lead screw.

[0025] As a further embodiment of the present invention: the linkage structure includes a fixed frame fixedly mounted on the frame body and a sealing collar fixedly mounted on the valve body, and a rotating shaft is rotatably mounted on the fixed frame;

[0026] One end of the rotating shaft extends through the sealing sleeve into the interior of the valve body, and a second bevel gear that meshes with the first bevel gear is fixedly installed at one end of the rotating shaft.

[0027] As a further embodiment of the present invention: a rotating rod is rotatably mounted on the fixed frame, a fourth bevel gear is fixedly mounted on one end of the rotating rod, and a third bevel gear that meshes with the fourth bevel gear is fixedly mounted on the other end of the rotating shaft;

[0028] A No. 5 bevel gear is fixedly installed at the other end of the rotating rod, and a bevel gear ring is fixedly installed on the outer wall of the rotating cylinder. The bevel gear ring and the No. 5 bevel gear mesh with each other.

[0029] A method for adjusting the three-way ball valve described above includes the following steps:

[0030] Step 1: Ensure safety. Before proceeding, ensure the system is completely depressurized to prevent accidental injury or equipment damage.

[0031] Step 2: Check the valve condition. Inspect whether the valve is clean, and whether there are any signs of damage or wear. Ensure that all connections are secure to prevent leaks.

[0032] Step 3: Operate the handle. Turn the handle to the appropriate position as needed. If the handle is too small to operate easily, you can use a wrench, pliers, or other tools.

[0033] Step 4: Observe the indicator marks to determine the on / off status and flow regulation of the ball valve, and make corresponding adjustments according to the indicator marks.

[0034] Compared with the prior art, the beneficial effects of the present invention are:

[0035] The locking component prevents the drive rod from rotating, thus preventing the valve stem from rotating via the connecting structure, keeping the ball stationary. When switching the connecting pipe, the handle drives the rotating drum to rotate. During rotation, the drum drives the drive rod to slide relative to the valve stem via the unlocking component. Simultaneously, the locking component releases its rotational lock on the drive rod as it slides. Due to the delayed transmission structure between the rotating drum and the drive rod, the drive rod remains stationary while the drum rotates, waiting for the unlocking component to activate the locking component before rotating with the drum. At this point, the locking component has released its rotational limit on the drive rod under the action of the unlocking component, allowing the drive rod to smoothly drive the valve stem and ball to rotate. Furthermore, the anti-high-pressure component seals the inside of the valve body, providing high-pressure resistance. During the rotation of the drum, the anti-high-pressure component works in conjunction with the drum via a linkage structure, ensuring the valve body remains in a conductive state.

[0036] This application, through the setting of the locking component, not only has a self-locking function, thereby ensuring the stability of the medium flow and improving reliability, but also has a delay effect during the switching of the connected pipeline. Compared with the instantaneous unlocking and switching of the traditional three-way ball valve, this design can avoid the waste of medium due to human error or accidental contact and improve safety performance. At the same time, the setting of the anti-high pressure component also enhances the high pressure resistance performance, and during the switching process, the anti-high pressure component will release the seal on the valve body. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of one embodiment of a three-way ball valve with a self-locking mechanism.

[0038] Figure 2 This is a cross-sectional view of the valve body structure in one embodiment of a three-way ball valve with a self-locking mechanism.

[0039] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0040] Figure 4 This is a partial cross-sectional view of one embodiment of a three-way ball valve with a self-locking structure.

[0041] Figure 5 for Figure 4 Enlarged view of section B in the middle.

[0042] Figure 6 This is a schematic diagram showing the valve stem and square block structure in one embodiment of a three-way ball valve with a self-locking mechanism.

[0043] Figure 7 This is an exploded view of part of the structure of a three-way ball valve with a self-locking mechanism in one embodiment.

[0044] Figure 8 This is a schematic diagram of the drive rod and rotary drum structure in one embodiment of a three-way ball valve with a self-locking mechanism.

[0045] Figure 9 This is a split view of the drive rod and rotary drum structure in one embodiment of a three-way ball valve with a self-locking mechanism.

[0046] Figure 10 This is a schematic diagram of the overall structure of one embodiment of a three-way ball valve with a self-locking mechanism from another perspective.

[0047] Figure 11 This is a cross-sectional view of the valve body, ring, and sealing seat structure in one embodiment of a three-way ball valve with a self-locking mechanism.

[0048] Figure 12 for Figure 11 Enlarged view of point C in the middle.

[0049] Figure 13 for Figure 11 Enlarged view of point D in the middle.

[0050] In the diagram: 1. Valve body; 2. Valve stem; 201. Square groove; 3. Ball; 4. Drive rod; 401. Square block; 402. Limiting post; 5. Frame; 501. Groove; 5011. Tooth groove; 6. Bracket; 7. Rotary cylinder; 701. Arc-shaped groove; 8. Handle; 9. Disc; 901. Tooth; 10. Spring; 11. Float plate; 12. Threaded rod; 13. Gear ring; 14. Gear; 15. Ring; 16. Sealing seat; 17. Guide rod; 18. Lead screw; 19. First bevel gear; 20. Fixing frame; 21. Sealing collar; 22. Rotating shaft; 23. Second bevel gear; 24. Rotating rod; 25. Third bevel gear; 26. Fourth bevel gear; 27. Fifth bevel gear; 28. Bevel gear ring. Detailed Implementation

[0051] 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.

[0052] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0053] Please see Figures 1-13 In this embodiment of the invention, a three-way ball valve structure with a self-locking structure includes a valve body 1 and a valve stem 2 rotatably disposed on the valve body 1. A ball 3 is movably disposed inside the valve body 1, and one end of the valve stem 2 is fixedly connected to the ball 3.

[0054] The other end of the valve stem 2 is provided with a drive rod 4 through a connecting structure. Under the action of the connecting structure, the valve stem 2 and the drive rod 4 can slide relative to each other, and when the drive rod 4 rotates, the valve stem 2 will rotate accordingly.

[0055] A frame 5 is fixedly installed on the valve body 1, and the frame 5 is sleeved on the outside of the drive rod 4. A locking assembly is provided between the drive rod 4 and the frame 5, and the locking assembly can prevent the drive rod 4 from rotating.

[0056] A bracket 6 is fixedly installed on the frame 5, and a rotating cylinder 7 is rotatably installed on the bracket 6. The rotating cylinder 7 is sleeved on the outside of the drive rod 4. A delay transmission structure is provided between the drive rod 4 and the rotating cylinder 7. Under the action of the delay transmission structure, when the rotating cylinder 7 rotates, the drive rod 4 will first remain stationary and then follow the rotating cylinder 7 to rotate. A handle 8 is fixedly installed on the outer wall of the rotating cylinder 7.

[0057] An unlocking component is provided between the rotating drum 7 and the driving rod 4. When the rotating drum 7 rotates, the unlocking component will drive the driving rod 4 to slide relative to the valve rod 2. At the same time, the locking component will release the rotation lock on the driving rod 4 during the sliding process.

[0058] The valve body 1 is equipped with a high-pressure protection component, which can seal the interior of the valve body 1. The high-pressure protection component is connected to the rotating drum 7 through a linkage structure. When the rotating drum 7 rotates, the high-pressure protection component will be activated by the linkage structure, thereby putting the valve body 1 in a conductive state.

[0059] In this design, the locking component prevents the drive rod 4 from rotating, thus preventing the valve stem 2 from rotating via the connecting structure, keeping the ball 3 stationary. When switching the connecting pipe is required, the handle 8 drives the rotating drum 7 to rotate. During rotation, the rotating drum 7 drives the drive rod 4 to slide relative to the valve stem 2 via the unlocking component. Simultaneously, the locking component releases its rotational lock on the drive rod 4 during its sliding motion. Due to the delayed transmission structure between the rotating drum 7 and the drive rod 4, when the rotating drum 7 rotates, the drive rod 4 will first remain stationary, waiting for the unlocking component to drive the locking component to act, and then follow the rotating drum 7 to rotate. At this point, the locking component has released its rotational limit on the drive rod 4 under the action of the unlocking component, allowing the drive rod 4 to smoothly drive the valve stem 2 and the ball 3 to rotate. In addition, the anti-high pressure component seals the interior of the valve body 1, thus providing high pressure resistance. During the rotation of the rotating drum 7, the anti-high pressure component cooperates with the rotating drum 7 through a linkage structure, ensuring that the valve body 1 is in a conductive state.

[0060] Please see Figure 5 , Figure 6 The connection structure includes a square block 401 fixedly disposed at one end of the drive rod 4. A square groove 201 is provided inside the valve rod 2 along its length direction. The square block 401 is located in the square groove 201 and slides with each other.

[0061] In this embodiment, since the square block 401 is located in the square groove 201 and slides with each other, the mutual sliding engagement of the drive rod 4 and the valve rod 2 is realized; and because of the shape characteristics of the square block 401 and the square groove 201, when the drive rod 4 rotates, the valve rod 2 will also rotate.

[0062] Please see Figure 5 , Figure 7 The locking assembly includes a disc 9 fixedly mounted on the drive rod 4 and a groove 501 formed on the frame 5, wherein the disc 9 is located inside the groove 501;

[0063] A spring 10 is sleeved on the outer wall of the drive rod 4. The two ends of the spring 10 abut against the frame 5 and the disc 9 respectively. The spring 10 is in a compressed state, and the disc 9 will always have a tendency to move into the groove 501 under the action of the spring 10.

[0064] The circumferential surface of the disk 9 is fixedly provided with teeth 901, and there are multiple teeth 901, which are evenly distributed along the circumferential direction of the disk 9.

[0065] The circumferential surface of the groove 501 is provided with a toothed groove 5011, and there are multiple toothed grooves 5011, which are evenly distributed along the circumferential direction of the groove 501.

[0066] The teeth 901 are located in the tooth grooves 5011, so that the disk 9 cannot rotate.

[0067] In this embodiment, since the spring 10 is present and in a compressed state, and the two ends of the spring 10 abut against the frame 5 and the disc 9 respectively, the disc 9 will always tend to move into the groove 501 when no external force is applied, so that the multiple teeth 901 are always located in the multiple tooth grooves 5011. Since the frame 5 is fixed, the disc 9 cannot rotate; and since the disc 9 is fixed on the drive rod 4, the drive rod 4 cannot rotate, thus realizing the self-locking function.

[0068] Please see Figure 5 , Figure 8 , Figure 9 The delayed transmission structure includes a limiting post 402 fixedly disposed on the outer wall of the drive rod 4 along the length direction of the rod and an arc-shaped slide groove 701 opened on the inner wall of the rotating cylinder 7, wherein the limiting post 402 is located inside the arc-shaped slide groove 701.

[0069] Wherein, the diameter of the arc-shaped chute 701 along the length of the rotating cylinder 7 is greater than the length of the limiting post 402.

[0070] In this embodiment, since the rotating drum 7 is sleeved outside the drive rod 4, and the limiting post 402 fixedly installed on the outer wall of the drive rod 4 is located inside the arc-shaped slide groove 701, when the rotating drum 7 rotates, the limiting post 402 and the arc-shaped slide groove 701 will slide relative to each other. When one end of the arc-shaped slide groove 701 is separated from the limiting post 402 and the other end of the arc-shaped slide groove 701 is not abutting against the limiting post 402, the drive rod 4 will not rotate with the rotating drum 7. When the other end of the arc-shaped slide groove 701 abuts against the limiting post 402, the rotating drum 7 will drive the drive rod 4 to rotate, thereby achieving the effect of delayed transmission.

[0071] Please see Figure 3 , Figure 5 The unlocking assembly includes a float plate 11 rotatably disposed on the outer wall of the drive rod 4 and two threaded rods 12 rotatably disposed on the frame 5. Both threaded rods 12 are threadedly engaged with the float plate 11, and the threaded rods 12 are parallel to the drive rod 4.

[0072] A gear ring 13 is fixedly provided on the outer wall of the rotating drum 7, and a gear 14 is fixedly provided at the ends of the two threaded rods 12, and the two gears 14 mesh with the gear ring 13.

[0073] In this embodiment, since the float plate 11 is rotatably mounted on the outer wall of the drive rod 4 and the float plate 11 is also threadedly engaged with the two threaded rods 12 rotatably mounted on the frame 5, when the two threaded rods 12 rotate in the same direction, the float plate 11 will drive the drive rod 4 to move towards the rotating drum 7. During this process, the drive rod 4 will drive the disc 9 to move out of the groove 501, thereby releasing the limitation on the rotation of the drive rod 4.

[0074] Since the outer wall of the rotating drum 7 is fixedly provided with a gear ring 13, and the ends of the two threaded rods 12 are fixedly provided with gears 14 that mesh with the gear ring 13, when the rotating drum 7 rotates, the gear ring 13 will drive the two gears 14 to rotate, thereby driving the two threaded rods 12 to rotate.

[0075] Please see Figure 12 The anti-high pressure component includes a ring 15 fixedly disposed inside the valve body 1 and a sealing seat 16 disposed inside the valve body 1 and abutting against the ring 15 on one side. The size of the sealing seat 16 is larger than the opening size of the ring 15.

[0076] A guide rod 17 is fixedly installed inside the valve body 1, and a sealing seat 16 is slidably installed on the guide rod 17. A lead screw 18 is rotatably installed inside the valve body 1. The sealing seat 16 and the lead screw 18 are threadedly engaged. A first bevel gear 19 is fixedly installed on the outer wall of the lead screw 18.

[0077] In this embodiment, since one side of the sealing seat 16 abuts against the ring 15 and the size of the sealing seat 16 is larger than the opening size of the ring 15, the interior of the valve body 1 is sealed, thereby improving the pressure resistance performance.

[0078] Since the sealing seat 16 is slidably mounted on the guide rod 17 and the sealing seat 16 is threadedly engaged with the lead screw 18 which is rotatably mounted inside the valve body 1, when the first bevel gear 19 on the lead screw 18 rotates, the lead screw 18 will rotate accordingly, thereby causing the sealing seat 16 to move away from the ring 15, that is, the valve body 1 is in the conducting state.

[0079] Please see Figure 12 , Figure 13 The linkage structure includes a fixed frame 20 fixedly mounted on the frame 5 and a sealing collar 21 fixedly mounted on the valve body 1. A rotating shaft 22 is rotatably mounted on the fixed frame 20.

[0080] One end of the rotating shaft 22 extends through the sealing ring 21 into the interior of the valve body 1, and a second bevel gear 23 that meshes with the first bevel gear 19 is fixedly provided at one end of the rotating shaft 22.

[0081] In this embodiment, since a rotating shaft 22 is rotatably mounted on the fixed frame 20, and a second bevel gear 23 and a first bevel gear 19 are fixedly mounted at one end of the rotating shaft 22 and mesh with each other, when the rotating shaft 22 rotates, the second bevel gear 23 will cooperate with the first bevel gear 19 to drive the lead screw 18 to rotate.

[0082] The sealing ring 21 is designed to seal the connection between the rotating shaft 22 and the valve body 1.

[0083] Please see Figure 12 , Figure 13 A rotating rod 24 is rotatably mounted on the fixed frame 20. A fourth bevel gear 26 is fixedly mounted on one end of the rotating rod 24, and a third bevel gear 25 that meshes with the fourth bevel gear 26 is fixedly mounted on the other end of the rotating shaft 22.

[0084] The other end of the rotating rod 24 is fixedly provided with a No. 5 bevel gear 27, and the outer wall of the rotating cylinder 7 is fixedly provided with a bevel gear ring 28, and the bevel gear ring 28 and the No. 5 bevel gear 27 mesh with each other.

[0085] In this embodiment, since a rotating rod 24 is rotatably mounted on the fixed frame 20, and a fourth bevel gear 26 fixed at one end of the rotating rod 24 and a third bevel gear 25 fixed at the other end of the rotating shaft 22 mesh with each other, the rotating shaft 22 will rotate when the rotating rod 24 rotates.

[0086] Furthermore, since the No. 5 bevel gear 27 fixedly installed at the other end of the rotating rod 24 and the bevel gear ring 28 fixedly installed on the outer wall of the rotating cylinder 7 mesh with each other, the rotating rod 24 will rotate along with the rotating cylinder 7 when the rotating cylinder 7 rotates.

[0087] A method for adjusting the three-way ball valve described above includes the following steps:

[0088] Step 1: Ensure safety. Before proceeding, ensure the system is completely depressurized to prevent accidental injury or equipment damage.

[0089] Step 2: Check the valve condition. Inspect whether the valve is clean, and whether there are any signs of damage or wear. Ensure that all connections are secure to prevent leaks.

[0090] Step 3: Operate the handle. Turn the handle to the appropriate position as needed. If the handle is too small to operate easily, you can use a wrench, pliers, or other tools.

[0091] Step 4: Observe the indicator marks to determine the on / off status and flow regulation of the ball valve, and make corresponding adjustments according to the indicator marks.

[0092] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0093] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A three-way ball valve structure with a self-locking mechanism, comprising a valve body (1) and a valve stem (2) rotatably mounted on the valve body (1), characterized in that, A ball (3) is movably disposed inside the valve body (1), and one end of the valve stem (2) is fixedly connected to the ball (3); The other end of the valve stem (2) is provided with a drive rod (4) through a connecting structure. Under the action of the connecting structure, the valve stem (2) and the drive rod (4) can slide against each other, and when the drive rod (4) rotates, the valve stem (2) will rotate accordingly. A frame (5) is fixedly installed on the valve body (1), and the frame (5) is sleeved on the outside of the drive rod (4). A locking component is provided between the drive rod (4) and the frame (5), and the locking component can prevent the drive rod (4) from rotating. A bracket (6) is fixedly installed on the frame (5), and a rotating cylinder (7) is rotatably installed on the bracket (6). The rotating cylinder (7) is sleeved on the outside of the drive rod (4). A delay transmission structure is provided between the drive rod (4) and the rotating cylinder (7). Under the action of the delay transmission structure, when the rotating cylinder (7) rotates, the drive rod (4) will first remain stationary and then follow the rotating cylinder (7) to rotate. A handle (8) is fixedly installed on the outer wall of the rotating cylinder (7). An unlocking component is provided between the rotating drum (7) and the driving rod (4). When the rotating drum (7) rotates, the unlocking component will drive the driving rod (4) to slide relative to the valve rod (2). At the same time, the locking component will release the rotation lock on the driving rod (4) during the sliding process. The valve body (1) is equipped with a high-pressure protection component. The high-pressure protection component can seal the inside of the valve body (1). The high-pressure protection component is connected to the rotating drum (7) through a linkage structure. When the rotating drum (7) rotates, the high-pressure protection component will operate under the drive of the linkage structure, thereby making the valve body (1) in a conductive state.

2. The three-way ball valve structure with a self-locking mechanism according to claim 1, characterized in that, The connection structure includes a square block (401) fixedly installed at one end of the drive rod (4), and a square groove (201) is provided inside the valve rod (2) along its length direction. The square block (401) is located in the square groove (201) and slides with each other.

3. The three-way ball valve structure with a self-locking mechanism according to claim 2, characterized in that, The locking assembly includes a disc (9) fixedly mounted on the drive rod (4) and a groove (501) formed on the frame (5), wherein the disc (9) is located inside the groove (501); The outer wall of the drive rod (4) is fitted with a spring (10). The two ends of the spring (10) abut against the frame (5) and the disc (9) respectively. The spring (10) is in a compressed state. Under the action of the spring (10), the disc (9) will always have a tendency to move into the groove (501).

4. The three-way ball valve structure with a self-locking mechanism according to claim 3, characterized in that, The circumferential surface of the disk (9) is fixedly provided with teeth (901), and there are multiple teeth (901), and the multiple teeth (901) are evenly distributed along the circumferential direction of the disk (9). The groove (501) has a toothed groove (5011) on its circumferential surface. There are multiple toothed grooves (5011), and the multiple toothed grooves (5011) are evenly distributed along the circumferential direction of the groove (501). The teeth (901) are located in the grooves (5011) respectively, so that the disk (9) cannot rotate.

5. The three-way ball valve structure with a self-locking mechanism according to claim 1, characterized in that, The delayed transmission structure includes a limiting post (402) fixedly disposed on the outer wall of the drive rod (4) along the length direction and an arc-shaped slide groove (701) opened on the inner wall of the rotating cylinder (7), wherein the limiting post (402) is located inside the arc-shaped slide groove (701); The diameter of the arc-shaped chute (701) along the length of the rotating cylinder (7) is greater than the length of the limiting post (402).

6. The three-way ball valve structure with a self-locking structure according to claim 1, characterized in that, The unlocking assembly includes a float plate (11) rotatably disposed on the outer wall of the drive rod (4) and two threaded rods (12) rotatably disposed on the frame (5). Both threaded rods (12) are threadedly engaged with the float plate (11), and the threaded rods (12) are parallel to the drive rod (4). A gear ring (13) is fixedly provided on the outer wall of the rotating drum (7), and gears (14) are fixedly provided at the ends of the two threaded rods (12), and the two gears (14) mesh with the gear ring (13).

7. The three-way ball valve structure with a self-locking structure according to claim 1, characterized in that, The anti-high pressure component includes a ring (15) fixedly disposed inside the valve body (1) and a sealing seat (16) disposed inside the valve body (1) and abutting against the ring (15) on one side. The size of the sealing seat (16) is larger than the opening size of the ring (15). A guide rod (17) is fixedly installed inside the valve body (1), and the sealing seat (16) is slidably installed on the guide rod (17). A screw rod (18) is rotatably installed inside the valve body (1). The sealing seat (16) is threadedly engaged with the screw rod (18). A first bevel gear (19) is fixedly installed on the outer wall of the screw rod (18).

8. A three-way ball valve structure with a self-locking mechanism according to claim 7, characterized in that, The linkage structure includes a fixed frame (20) fixedly mounted on the frame (5) and a sealing collar (21) fixedly mounted on the valve body (1). A rotating shaft (22) is rotatably mounted on the fixed frame (20). One end of the rotating shaft (22) extends through the sealing ring (21) into the interior of the valve body (1), and a second bevel gear (23) is fixedly provided at one end of the rotating shaft (22) to mesh with the first bevel gear (19).

9. The three-way ball valve structure with a self-locking structure according to claim 8, characterized in that, A rotating rod (24) is rotatably mounted on the fixed frame (20). A fourth bevel gear (26) is fixedly mounted on one end of the rotating rod (24), and a third bevel gear (25) that meshes with the fourth bevel gear (26) is fixedly mounted on the other end of the rotating shaft (22). The other end of the rotating rod (24) is fixedly provided with a No. 5 bevel gear (27), and the outer wall of the rotating cylinder (7) is fixedly provided with a bevel gear ring (28), and the bevel gear ring (28) and the No. 5 bevel gear (27) mesh with each other.

10. A method for adjusting a three-way ball valve as described in any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Ensure safety. Before proceeding, ensure the system is completely depressurized to prevent accidental injury or equipment damage. Step 2: Check the valve condition. Inspect whether the valve is clean, and whether there are any signs of damage or wear. Ensure that all connections are secure to prevent leaks. Step 3: Operate the handle. Turn the handle to the appropriate position as needed. If the handle is too small to operate easily, you can use a wrench, pliers, or other tools. Step 4: Observe the indicator marks to determine the on / off status and flow regulation of the ball valve, and make corresponding adjustments according to the indicator marks.

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