Locking-type interlocking ball valve

Abstract

Provided is a locking-type interlocking ball valve, comprising: two valve bodies (1), wherein a ball valve (2) is provided in each of the two valve bodies (1), the two valve bodies (1) are connected to each other in a snap-fit manner, and a locking hole (4) and a positioning hole (3) which correspond to each other in terms of position are provided in the valve bodies (1); and a locking assembly (5), wherein the locking assembly (5) is mounted on the valve bodies (1), and the locking assembly (5) comprises a locking rod (501) sliding in the locking hole (4). When the locking rod (501) is inserted into the positioning hole (3), the two valve bodies (1) are locked, thereby preventing the two ball valves (2) from rotating relative to each other after snap-fit mating, that is, preventing the two ball valves (2) from being disconnected due to misoperation when a pipeline is in an open state, and further avoiding leakage caused by accidental operation.

Description

A locking type interlocking ball valve

[0001] This application claims priority to Chinese Patent Application No. 202423091675.X, filed on December 16, 2024, entitled "A Locking Interlock Ball Valve", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of valve body equipment technology, and more specifically, to a locking interlocking ball valve. Background Technology

[0003] The snap-fit ​​quick-connect liquid-cooled interlock ball valve is a ball valve that can be quickly connected and disassembled and is used in the liquid cooling field. The two ball valves are connected by a snap-fit, and the external connection can be in various forms such as thread, pagoda head, and chuck. It ensures the sealed fluid connection and disconnection between the two fluid passages, and can lock to prevent accidental disconnection when the passage is connected, thereby avoiding fluid leakage.

[0004] Existing liquid-cooled ball valves are often connected by welding at both ends. When a problem occurs in one pipeline and needs to be repaired or replaced, it cannot be handled quickly and in a timely manner, causing the liquid circuit part of the thermal management system to shut down. On the other hand, although the double ball valve snap-fit ​​connection makes up for the disadvantage of not being able to quickly remove one end of the ball valve for repair, it lacks a device to prevent accidental disassembly, which can easily lead to fluid leakage and cause greater losses, reducing the safety factor.

[0005] However, the current double ball valve interlocking structure has too many parts, the design is too complicated, and there are too many machining processes for the valve body, resulting in high costs. The interlocking rod has low resistance to shear force when locked.

[0006] In summary, how to provide a dual-ball valve with stable locking effect is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0007] In view of this, the purpose of the present invention is to provide a locking interlock ball valve that uses fewer parts and has good locking stability.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A locking interlock ball valve, comprising:

[0010] Two valve bodies, each containing a ball valve, are connected by a snap-fit ​​mechanism. Each valve body has a corresponding locking hole and a positioning hole.

[0011] A locking assembly is installed on the valve body. The locking assembly includes a locking rod that slides within the locking hole. When the locking rod is inserted into the positioning hole, the two valve bodies are locked.

[0012] Furthermore, the locking component further includes:

[0013] A pin, which is mounted on the valve body and connected to the ball valve;

[0014] A handle is rotatably mounted on the pin and is used to control the sliding of the locking rod within the locking hole.

[0015] Furthermore, the handle is provided with a pushing part and a rotating part. The pushing part is used to control the sliding of the locking rod. The pin is located between the handle and the valve body. The distance between the rotating part and the pin is greater than the distance between the pushing part and the pin.

[0016] Furthermore, the locking component further includes:

[0017] A connecting rod, one end of which is hinged to the pushing part, and the other end of which is hinged to the locking rod.

[0018] Furthermore, the valve body is provided with two positioning grooves, which are respectively located at the ends of the rotation limits on both sides of the handle;

[0019] A steel ball rotates with the handle, and when the steel ball is located in the positioning groove, the position of the handle is fixed.

[0020] Furthermore, the valve body is provided with a slide rail coaxial with the pin shaft, and the two positioning grooves are respectively located at both ends of the slide rail.

[0021] Furthermore, the handle is provided with a steel ball hole, and when the steel ball enters the steel ball hole, the handle can rotate freely.

[0022] Furthermore, the handle is provided with a control hole, which communicates with the steel ball hole. A control rod slides within the control hole, and the control rod has an annular groove in its middle.

[0023] Furthermore, the control rod is fitted with a top spring that drives the control rod to slide outward from the control hole.

[0024] Furthermore, the side of the annular groove is chamfered.

[0025] The locking interlocking ball valve provided by this invention has two valve bodies with identical structures at their contact positions. Each valve body contains a ball valve and is connected via a snap-fit ​​mechanism. The valve bodies have corresponding locking holes and positioning holes. The opening and closing of the ball valves controls the pipeline. A locking assembly is installed on the valve body and includes a locking rod that slides within the locking hole. When the locking rod is inserted into the positioning hole, the two valve bodies are locked. In other words, after the two valve bodies are fixedly connected via the snap-fit ​​mechanism, the locking assembly controls the locking rod sliding within the locking hole. After sliding, the locking rod enters the positioning hole of the other valve body, thus locking the two valve bodies and preventing relative rotation of the two ball valves after the snap-fit ​​connection. This prevents accidental interruption of the connection between the two ball valves when the pipeline is open, thereby avoiding leakage due to accidental operation. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0027] Figure 1 is a schematic diagram of the axial structure after the two valve bodies provided by the present invention are fitted together;

[0028] Figure 2 is a schematic diagram of the axial structure of a single valve body provided by the present invention;

[0029] Figure 3 is a schematic diagram of the cross-sectional structure of the two valve bodies provided by the present invention after they are fitted together;

[0030] Figure 4 is a schematic diagram of the side cross-section of a single valve body provided by the present invention;

[0031] Figure 5 is a schematic diagram of the front cross-section of a single valve body provided by the present invention;

[0032] Figure 6 is a top sectional view of the structure of a single valve body provided by the present invention;

[0033] Figure 7 is an enlarged structural schematic diagram of the structure at point A in Figure 5 provided by the present invention.

[0034] In Figures 1-7, the reference numerals include: valve body 1, ball valve 2, positioning hole 3, locking hole 4, locking assembly 5, locking rod 501, pin 502, connecting rod 503, control rod 504, handle 505, top spring 506, annular groove 507, positioning groove 6, slide 7, steel ball 8, steel ball hole 9, and control hole 10. Detailed Implementation

[0035] 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.

[0036] The core of this invention is to provide a locking interlock ball valve that uses fewer parts and has good locking stability.

[0037] Please refer to Figures 1-7. A locking interlock ball valve includes two valve bodies 1 and a locking assembly 5. Each of the two valve bodies 1 is provided with a ball valve 2 and is connected by a snap-fit ​​method. The valve body 1 is provided with a locking hole 4 and a positioning hole 3 corresponding to the position. The locking assembly 5 is installed on the valve body 1. The locking assembly 5 includes a locking rod 501 that slides in the locking hole 4. When the locking rod 501 is inserted into the positioning hole 3, the two valve bodies 1 are locked.

[0038] It should be noted that in the embodiments of the present invention, the size of the positioning hole 3 and the locking hole 4 can be selected according to the size of the valve body 1, and the positioning hole 3 and the locking hole 4 are the same size.

[0039] In use, the two valve bodies 1 have the same structure at their contact positions. Each valve body 1 is equipped with a ball valve 2, which is connected by a snap-fit ​​mechanism. Each valve body 1 has a corresponding locking hole 4 and a positioning hole 3. The opening and closing of the ball valve 2 controls the pipeline switch. The locking assembly 5 is installed on the valve body 1 and includes a locking rod 501 that slides in the locking hole 4. When the locking rod 501 is inserted into the positioning hole 3, the two valve bodies 1 are locked. That is, after the two valve bodies 1 are fixedly connected by the snap-fit ​​mechanism, the locking assembly 5 controls the locking rod 501 that slides in the locking hole 4. After sliding, the locking rod 501 will enter the positioning hole 3 of the other valve body 1, thus locking the two valve bodies 1. This prevents the two ball valves 2 from rotating relative to each other after the snap-fit ​​is connected, which also prevents accidental interruption of the connection between the two ball valves 2 when the pipeline is open, thereby avoiding leakage caused by accidental operation.

[0040] Please refer to Figures 1-7. To improve the performance of the valve body 1, in some embodiments, the locking assembly 5 further includes a pin 502 and a handle 505. The pin 502 is mounted on the valve body 1 and connected to the ball valve 2. The handle 505 is rotatably mounted on the pin 502 and is used to control the sliding of the locking rod 501 within the locking hole 4. In other words, the handle 505 controls the locking rod 501, ensuring a fixed connection between the two valve bodies 1. Simultaneously, the handle 505 is fixed to the pin 502, which is rotatably mounted on the valve body 1. Therefore, when the handle 505 is rotated, it will synchronously drive the ball valve 2 to rotate. Thus, when the handle 505 rotates and controls the locking rod 501 to be inserted into the positioning hole 3 of another valve body 1, the ball valve 2 is opened. At this time, the pipeline passage is opened. Under the action of the fluid, there is a certain resistance to the ball valve 2, which in turn provides a certain resistance to the handle 505. Therefore, the position of the locking rod 501 is fixed to a certain extent, reducing the possibility of the locking rod 501 being accidentally moved during the pipeline opening process, which is beneficial to the stability of the pipeline passage during use.

[0041] It should be noted that in this embodiment of the invention, the handle 505 and the pin 502 are fixedly connected by a limiting post.

[0042] Please continue to refer to Figures 1-7. In some embodiments, the handle 505 is provided with a pushing part and a rotating part. The pin 502 is located between the handle 505 and the valve body 1. The distance between the rotating part and the pin 502 is greater than the distance between the pushing part and the pin 502. That is to say, the rotating part is used to provide power for the rotation of the handle 505, while the pushing part is used to push the locking rod 501. By increasing the distance between the rotating part and the pin 502 to be greater than the distance between the pushing part and the pin 502, the operating effect of the locking rod 501 is improved by increasing the operating lever arm, and the resistance of the locking rod 501 during the locking process is increased.

[0043] Optionally, in some embodiments, the distance between the rotating part and the pin 502 is more than three times that between the pushing part and the pin 502.

[0044] Optionally, in some embodiments, the rotating part is provided with a handle to facilitate the user's gripping and operation.

[0045] Please continue to refer to Figures 1-7. In some embodiments, the locking assembly 5 further includes a connecting rod 503. One end of the connecting rod 503 is hinged to the pushing part, and the other end of the connecting rod 503 is hinged to the locking rod 501. The connecting rod 503 is used for the transition connection between the locking rod 501 and the handle 505, so that it can control the sliding of the locking rod 501 when the handle 505 is rotated.

[0046] Optionally, in some embodiments, the pusher is a protruding structure protruding from the handle 505, which is used to increase the drive radius of the link 503 while reducing the size of the handle 505.

[0047] Please refer to Figures 1-7. To further enhance the stability of the locking rod 501 after locking, in some embodiments, the valve body 1 is provided with two positioning grooves 6 and steel balls 8. The two positioning grooves 6 are respectively located at the ends of the rotation limits on both sides of the handle 505. The steel balls 8 rotate with the handle 505. When the steel balls 8 are located in the positioning grooves 6, the position of the handle 505 is fixed. That is, the steel balls 8 move with the handle 505. Since the two positioning grooves 6 are respectively located at the ends of the rotation limits on both sides of the handle 505, when the handle 505 moves to one of the positioning grooves 6, the steel balls 8 enter the interior of the positioning groove 6, thereby fixing the position of the handle 505 and ensuring that the locking rod 501 is effectively and securely locked.

[0048] Alternatively, in some embodiments, the size of the positioning groove 6 may be selected according to the size of the steel ball 8.

[0049] Optionally, in some embodiments, the handle 505 is provided with a steel ball hole 9. When the steel ball 8 enters the steel ball hole 9, the handle 505 can rotate freely. That is, the steel ball 8 can enter the steel ball hole 9 on the handle 505, so that the steel ball 8 can be moved out of the positioning groove 6, thereby removing the restriction on the position of the handle 505. At this time, the handle 505 can rotate freely.

[0050] It should be noted that in this embodiment of the invention, the diameter of the steel ball hole 9 is larger than that of the steel ball 8, so that the steel ball 8 can move freely in and out.

[0051] Optionally, in some embodiments, the valve body 1 is provided with a slide 7 coaxially arranged with the pin 502, and two positioning grooves 6 are respectively located at both ends of the slide 7. The slide 7 is used to limit the steel ball 8 when it rotates with the handle 505 to prevent the steel ball 8 from falling off.

[0052] It should be noted that in this embodiment of the invention, the depth of the positioning groove 6 is greater than the depth of the slide 7.

[0053] Please refer to Figures 1-7. To further facilitate the control of the steel ball 8, in some embodiments, the handle 505 is provided with a control hole 10, which communicates with the steel ball hole 9. A control rod 504 slides inside the control hole 10, and an annular groove 507 is provided in the middle of the control rod 504. That is, the sliding of the control rod 504 in the control hole 10 realizes the position change of the annular groove 507 of the control rod 504. Therefore, when the annular groove 507 moves to the position of the steel ball hole 9, the steel ball 8 enters the annular groove 507, realizing the removal of the steel ball 8 from the positioning groove 6. After the position of the control rod 504 is moved, the steel ball 8 is squeezed out from the annular groove 507, so that the steel ball 8 enters the positioning groove 6, thereby fixing the position of the handle 505.

[0054] Please refer to Figures 1-7. In some embodiments, a top spring 506 is fitted on the control rod 504 to drive the control rod 504 to slide outward from the control hole 10. That is, the top spring 506 can control the control rod 504 to always keep the annular groove 507 away from the steel ball hole 9. Therefore, when a pre-tightening force is achieved at the position of the steel ball 8, the fixing firmness of the handle 505 is further improved.

[0055] Optionally, in some embodiments, the side of the annular groove 507 is chamfered, that is, the chamfer is used to reduce the resistance when pushing the steel ball 8 out of the annular groove 507 and improve the smoothness of the position change of the steel ball 8.

[0056] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0057] The foregoing has provided a detailed description of a locking interlock ball valve provided by the present invention. Specific examples have been used to illustrate the principles and implementation methods of the invention. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A locking-type interlocking ball valve, characterized in that, include: Two valve bodies (1), each of which is equipped with a ball valve (2) and connected by a snap-fit ​​method. The valve bodies (1) are provided with locking holes (4) and positioning holes (3) corresponding to their positions. Locking assembly (5) is installed on the valve body (1). The locking assembly (5) includes a locking rod (501) that slides in the locking hole (4). When the locking rod (501) is inserted into the positioning hole (3), the two valve bodies (1) are locked.

2. The locking interlock ball valve according to claim 1, characterized in that, The locking assembly (5) further includes: A pin (502) is mounted on the valve body (1) and connected to the ball valve (2); A handle (505) is rotatably mounted on the pin (502) and is used to control the sliding of the locking rod (501) within the locking hole (4).

3. A locking interlock ball valve according to claim 2, characterized in that, The handle (505) is provided with a pushing part and a rotating part. The pushing part is used to control the sliding of the locking rod (501). The pin (502) is located between the handle (505) and the valve body (1). The distance between the rotating part and the pin (502) is greater than the distance between the pushing part and the pin (502).

4. A locking interlock ball valve according to claim 3, characterized in that, The locking assembly (5) further includes: A connecting rod (503), one end of which is hinged to the pushing part, and the other end of which is hinged to the locking rod (501).

5. A locking interlock ball valve according to claim 2, characterized in that, The valve body (1) is provided with two positioning grooves (6), which are located at the ends of the rotation limits on both sides of the handle (505); The steel ball (8) rotates with the handle (505). When the steel ball (8) is located in the positioning groove (6), the position of the handle (505) is fixed.

6. A locking interlock ball valve according to claim 5, characterized in that, The valve body (1) is provided with a slide (7) coaxially arranged with the pin (502), and the two positioning grooves (6) are located at the two ends of the slide (7).

7. A locking interlock ball valve according to claim 6, characterized in that, The handle (505) is provided with a steel ball hole (9). When the steel ball (8) enters the steel ball hole (9), the handle (505) can rotate freely.

8. A locking interlock ball valve according to claim 7, characterized in that, The handle (505) is provided with a control hole (10), which is connected to the ball hole (9). A control rod (504) slides in the control hole (10), and an annular groove (507) is provided in the middle of the control rod (504).

9. A locking interlock ball valve according to claim 8, characterized in that, A top spring (506) is fitted on the control rod (504) to drive the control rod (504) to slide out of the control hole (10).

10. A locking interlock ball valve according to claim 8 or 9, characterized in that, The annular groove (507) has a chamfer on its side.

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