A direct-push interlocking ball valve

Abstract

The application discloses a direct-push type interlocking ball valve and belongs to the technical field of liquid cooling, which comprises two valve bodies, the two valve bodies are butted through axial insertion to form a fluid passage, and further comprises: two valve cores which are rotatably installed in the flow channels of the corresponding valve bodies respectively; two operation handles which are fixedly connected with the corresponding valve cores respectively; in a first state, the two valve bodies are separated, an elastic reset member pushes a locking pin to extend into a limiting groove of the valve body to limit the rotation of the valve core; in a second state, the two valve bodies are axially and directly pushed to butt in place, a trigger member pushes the locking pin to exit from the limiting groove against the elastic force of the elastic reset member to release the locking of the operation handle, and when the valve core is in an open position, the operation handle is limited and matched with the corresponding valve body to lock the axial separation of the two valve bodies. The operation efficiency is greatly improved: the butt joint can be completed through axial direct pushing without rotation locking, the operation steps are reduced, and the installation and maintenance are more convenient.

Description

Technical Field

[0001] This invention belongs to the field of liquid cooling technology, and more specifically, relates to a direct-push interlocking ball valve. Background Technology

[0002] In fields such as data center liquid cooling, high-performance computing heat dissipation, and industrial precision fluid transportation, quick-connect couplings, as critical connection components of piping systems, must meet stringent safety and sealing requirements. Especially in high-pressure or hazardous fluid environments, to prevent leakage accidents caused by misoperation, high-end quick-connect couplings generally adopt a "double interlocking safety mechanism." Its core constraints include: the valve core cannot open when the coupling is not fully mechanically coupled, preventing premature fluid leakage; and the coupling cannot be mechanically separated when the valve core is not fully closed, preventing fluid splashing caused by pressurized disconnection.

[0003] The interlocking ball valve connector, represented by the Danfoss FD83 series, adopts a rotary locking structure, that is, the left and right connectors are rotated and engaged to achieve interlocking and unlocking, and then the handle is turned to control the opening and closing of the valve core. However, existing technologies have certain drawbacks: 1. Cumbersome operation: It requires performing two actions simultaneously, namely "rotating to lock" and "pulling the valve core handle", which involves many steps and results in low installation and maintenance efficiency; 2. Complex structure: The rotary meshing mechanism is complex, has high processing costs, and the rotary meshing parts are prone to wear, which may lead to jamming or locking failure after long-term use; 3. Large space occupation: Rotary locking requires reserved space in the circumferential direction, which is difficult to apply in narrow pipeline spaces; 4. Reliability risks: If impurities are present during the rotational meshing process, it can easily lead to incomplete meshing, causing interlock failure and posing a risk of leakage. Summary of the Invention

[0004] To solve the above problems, the present invention adopts the following technical solution: A direct-push interlocking ball valve includes two valve bodies connected axially to form a fluid passage, and further includes: Two valve cores are provided in a one-to-one correspondence with the two valve bodies, and are rotatably installed in the flow channels of the corresponding valve bodies; Two operating handles are provided, one for each of the two valve cores, and are fixedly connected to the corresponding valve cores respectively; A direct-push interlocking mechanism includes a trigger, a housing, a locking pin, and a resilient reset member. The locking pin is slidably disposed within the housing, and the resilient reset member abuts against the locking pin and the outer wall of the valve body. The direct-push interlock mechanism has a first state and a second state; In the first state, the two valve bodies are separated, and the elastic reset member pushes the locking pin into the limiting groove of the valve body to restrict the rotation of the valve core and keep the operating handle in the closed position; In the second state, the two valve bodies are axially pushed into place, and the trigger pushes the locking pin to overcome the elastic force of the elastic reset member and exit from the limiting groove to release the lock on the operating handle, allowing the operating handle to drive the valve core to rotate to the open position. When the valve core is in the open position, the operating handle and the corresponding valve body form a limiting engagement to lock the axial separation of the two valve bodies.

[0005] Furthermore, the operating handle is provided with an insertion end, and the valve body is provided with a limiting part. When the valve core is in the open position, the insertion end rotates to insert into the limiting part to form a limiting fit, thereby locking the axial separation of the two valve bodies.

[0006] Furthermore, a rotating shaft is provided on the side of the valve core away from the operating handle, a guide hole is provided on the inner wall of the valve body to cooperate with the rotating shaft, an installation hole is provided at the end of the rotating shaft, and a retaining spring is provided between the installation hole and the guide hole.

[0007] Furthermore, each of the two valve bodies has a guide rod and a socket on its mating end face. The guide rods of the two valve bodies are respectively adapted to the sockets of the other to achieve axial insertion and mating. A sealing ring is provided at the interface.

[0008] Furthermore, the housing is fixedly installed on the valve body. A first groove is formed at the upper end of the housing on the side away from the valve body, and a second groove is formed on the side of the housing close to the valve body. The second groove is opposite to the limiting groove. The upper part of the locking pin is slidably disposed in the second groove, and the lower part of the locking pin is slidably disposed in the limiting groove. In the first state, the locking pin extends into the limiting groove, and in the second state, the locking pin retracts from the limiting groove.

[0009] Furthermore, the trigger is an axial push rod fixed to the mating end face of the valve body, and the end of the push rod is provided with a wedge-shaped inclined surface; the upper end of the locking pin is provided with a ramp structure that cooperates with the wedge-shaped inclined surface, the wedge-shaped inclined surface extends into the first groove and slides against the ramp structure, and in the second state, the push rod moves axially and pushes the locking pin to slide away from the limiting groove through the wedge-shaped inclined surface.

[0010] Furthermore, a third groove is provided on the side of the locking pin near the valve body, and the elastic reset member is a return spring. The return spring is disposed in the third groove, with one end abutting against the groove wall of the third groove and the other end abutting against the outer wall of the valve body.

[0011] Furthermore, the operating handle is provided with a gear positioning mechanism, and the end of the operating handle is provided with a fourth groove. The gear positioning mechanism includes: The pressing rod is slidably disposed in the fourth groove at the end of the operating handle. The pressing rod has a stepped shaft structure that is wide at both ends and narrow in the middle. A compression spring abuts against one end of the pressing rod and the bottom wall of the fourth groove; A locking bead is provided; a limiting hole is provided between the operating handle and the valve body; the limiting hole communicates with the fourth groove; and the locking bead is disposed in the limiting hole. The outer wall of the valve body is provided with a first locking groove and a second locking groove along the rotation path of the operating handle. The locking ball can be selectively embedded in the first locking groove or the second locking groove under the elastic force of the compression spring, so as to maintain the closed position or the open position of the operating handle accordingly. The side wall of the operating handle is provided with a threaded hole that communicates with the fourth groove. An anti-disengagement bolt is installed in the threaded hole. The rod of the anti-disengagement bolt extends into the fourth groove and is located at the narrow neck of the pressing rod to limit the axial travel of the pressing rod.

[0012] The beneficial effects of this invention are: 1. Significantly improved operating efficiency: No need for rotation and locking, docking can be completed simply by axial push, reducing operating steps and making installation and maintenance more convenient; 2. Higher structural reliability: The easily worn rotating meshing parts have been eliminated, resulting in a longer service life; 3. Strong spatial adaptability: No circumferential operating space requirements, suitable for narrow piping spaces, such as high-density data center liquid cooling piping; 4. Safety is not reduced: The double interlock safety mechanism, which prevents valve opening without docking and separation without valve closing, is retained to eliminate the risk of leakage due to misoperation; 5. Lower processing costs: The valve body has a simple structure and a simpler processing technology, which reduces manufacturing costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a direct-push interlocking ball valve according to the present invention; Figure 2 for Figure 1 A schematic diagram of the AA cross-sectional view; Figure 3 Schematic diagram of valve body structure Figure 1 ; Figure 4 Schematic diagram of valve body structure Figure 2 ; Figure 5 This is a schematic diagram of the operating handle structure; Figure 6 This is a schematic diagram showing another perspective of the control handle; Figure 7 for Figure 6 A schematic diagram of the BB cross-section.

[0014] In the diagram: 1. Valve body; 2. Valve core; 3. Operating handle; 4. Insertion end; 5. Limiting part; 6. Rotating shaft; 7. Guide hole; 8. Pressing spring; 9. Guide rod; 10. Insertion hole; 11. Housing; 12. First groove; 13. Second groove; 14. Limiting groove; 15. Locking pin; 16. Push rod; 17. Third groove; 18. Return spring; 19. Fourth groove; 20. Pressing rod; 21. Compression spring; 22. Locking ball; 23. Second locking groove; 24. Threaded hole. Detailed Implementation

[0015] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0016] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0017] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0018] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0019] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0020] Example 1

[0021] refer to Figures 1 to 7 A direct-push interlocking ball valve includes two valve bodies 1, which are axially connected to form a fluid passage, and further includes: Two valve cores 2 are provided one-to-one with two valve bodies 1, and are rotatably installed in the flow channels of the corresponding valve bodies 1; Two operating handles 3 are set one-to-one with two valve cores 2, and are fixedly connected to the corresponding valve cores 2 respectively; The direct-push interlock mechanism includes a trigger, a housing 11, a locking pin 15, and an elastic reset member. The locking pin 15 is slidably disposed in the housing 11, and the elastic reset member abuts against the locking pin 15 and the outer wall of the valve body 1. The direct-drive interlock mechanism has a first state and a second state; In the first state, the two valve bodies 1 are separated, and the elastic reset member pushes the locking pin 15 into the limiting groove 14 of the valve body 1 to restrict the rotation of the valve core 2 and keep the operating handle 3 in the closed position. In the second state, the two valve bodies 1 are axially pushed into place, and the trigger pushes the locking pin 15 to overcome the elastic force of the elastic reset member and exit from the limiting groove 14 to release the lock on the operating handle 3, allowing the operating handle 3 to drive the valve core 2 to rotate to the open position. When the valve core 2 is in the open position, the operating handle 3 and the corresponding valve body 1 form a limiting fit to lock the axial separation of the two valve bodies 1.

[0022] In practice, the operating handle 3 has "OPEN" and "CLOSE" positions. The handle can only be turned from the "CLOSE" position to the "OPEN" position when the two valve bodies are properly connected.

[0023] Preferably, the valve core is a full-bore ball valve core, which is linked with the operating handle to control the opening and closing of the flow channel.

[0024] In this embodiment, the operating handle 3 is provided with an insertion end 4, and the valve body 1 is provided with a limiting part 5. When the valve core 2 is in the open position, the insertion end 4 rotates into the insertion limiting part 5 to form a limiting fit, so as to lock the axial separation of the two valve bodies 1.

[0025] In this embodiment, a rotating shaft 6 is provided on the side of the valve core 2 away from the operating handle 3, and a guide hole 7 that cooperates with the rotating shaft 6 is provided on the inner wall of the valve body 1. An installation hole is provided at the end of the rotating shaft 6, and a retaining spring 8 is provided between the installation hole and the guide hole 7.

[0026] In this embodiment, each of the two valve bodies 1 has a guide rod 9 and a socket 10 on its mating end face. The guide rod 9 of the two valve bodies 1 is respectively adapted to the socket 10 of the other to achieve axial insertion and mating. A sealing ring is provided at the interface.

[0027] In this embodiment, the housing 11 is fixedly installed on the valve body 1. A first groove 12 is provided on the upper end of the side of the housing 11 away from the valve body 1, and a second groove 13 is provided on the side of the housing 11 close to the valve body 1. The second groove 13 is disposed opposite to the limiting groove 14. The upper part of the locking pin 15 is slidably disposed in the second groove 13, and the lower part of the locking pin 15 is slidably disposed in the limiting groove 14. In the first state, the locking pin 15 extends into the limiting groove 14, and in the second state, the locking pin 15 exits the limiting groove 14.

[0028] In this embodiment, the trigger is an axial push rod 16 fixed to the mating end face of the valve body 1, and the end of the push rod 16 is provided with a wedge-shaped inclined surface; the upper end of the locking pin 15 is provided with a ramp structure that cooperates with the wedge-shaped inclined surface. The wedge-shaped inclined surface extends into the first groove 12 and slides against the ramp structure. In the second state, the push rod 16 moves axially and pushes the locking pin 15 to slide away from the limiting groove 14 through the wedge-shaped inclined surface.

[0029] In this embodiment, a third groove 17 is provided on the side of the locking pin 15 near the valve body 1, and the elastic reset member is a return spring 18. The return spring 18 is disposed in the third groove 17, with one end of the return spring 18 abutting against the groove wall of the third groove 17 and the other end abutting against the outer wall of the valve body 1.

[0030] In this embodiment, the operating handle 3 is provided with a gear positioning mechanism, and the end of the operating handle 3 is provided with a fourth groove 19. The gear positioning mechanism includes: The pressing rod 20 is slidably disposed in the fourth groove 19 at the end of the operating handle 3. The pressing rod 20 has a stepped shaft structure that is wide at both ends and narrow in the middle. A compression spring 21 abuts against one end of the pressing rod 20 and the bottom wall of the fourth groove 19; Locking bead 22; a limit hole is provided between the operating handle 3 and the valve body 1, the limit hole is connected to the fourth groove 19, and the locking bead 22 is set in the limit hole; A first locking groove and a second locking groove 23 are provided on the outer wall of the valve body 1 along the rotation path of the operating handle 3. The locking ball 22 can be selectively embedded in the first locking groove or the second locking groove 23 under the elastic force of the compression spring 21, so as to maintain the closed position or the open position of the operating handle 3 accordingly. The side wall of the operating handle 3 is provided with a threaded hole 24 that communicates with the fourth groove 19. An anti-disengagement bolt is installed in the threaded hole 24. The rod of the anti-disengagement bolt extends into the fourth groove 19 and is located at the narrow neck of the pressing rod 20 to limit the axial travel of the pressing rod 20.

[0031] Working principle: 1. Unconnected state: The locking pin extends under the action of the elastic reset element and gets stuck in the limit groove of the operating handle 3. The valve core cannot rotate, the handle is locked in the closed position, and the flow channel remains closed. 2. Direct push docking process: Push the two valve bodies axially to dock. When docking is in place, the trigger pushes the locking pin back, disengaging it from the limit groove of the operating handle 3 and releasing the valve core lock. 3. Opening the flow channel: The operating handle 3 can be rotated from the closed position to the open position, which drives the valve core to rotate. While the operating handle 3 drives the valve core to rotate, the two valve bodies are also interlocked synchronously. The two valve bodies are interlocked in advance, and the valve core opens slowly afterwards, opening the flow channel. 4. Closing and Separation: When the handle is turned back to the closed position, the valve core resets, the locking pin extends under the action of the elastic reset element, and relocks the valve core. At the same time, the valve body can be axially separated, the flow channel remains closed, and there is no leakage.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. A direct-push interlocking ball valve, comprising two valve bodies, characterized in that, The two valve bodies are axially connected to form a fluid passage, and also include: Two valve cores are provided in a one-to-one correspondence with the two valve bodies, and are rotatably installed in the flow channels of the corresponding valve bodies; Two operating handles are provided, one for each of the two valve cores, and are fixedly connected to the corresponding valve cores respectively; A direct-push interlocking mechanism includes a trigger, a housing, a locking pin, and a resilient reset member. The locking pin is slidably disposed within the housing, and the resilient reset member abuts against the locking pin and the outer wall of the valve body. The direct-push interlock mechanism has a first state and a second state; In the first state, the two valve bodies are separated, and the elastic reset member pushes the locking pin into the limiting groove of the valve body to restrict the rotation of the valve core and keep the operating handle in the closed position; In the second state, the two valve bodies are axially pushed into place, and the trigger pushes the locking pin to overcome the elastic force of the elastic reset member and exit from the limiting groove to release the lock on the operating handle, allowing the operating handle to drive the valve core to rotate to the open position. When the valve core is in the open position, the operating handle and the corresponding valve body form a limiting engagement to lock the axial separation of the two valve bodies.

2. The direct-push interlocking ball valve according to claim 1, characterized in that, The operating handle is provided with an insertion end, and the valve body is provided with a limiting part. When the valve core is in the open position, the insertion end rotates to insert into the limiting part to form a limiting fit, thereby locking the axial separation of the two valve bodies.

3. The direct-push interlocking ball valve according to claim 1, characterized in that, A rotating shaft is provided on the side of the valve core away from the operating handle. A guide hole that mates with the rotating shaft is provided on the inner wall of the valve body. An installation hole is provided at the end of the rotating shaft. A retaining spring is provided between the installation hole and the guide hole.

4. A direct-push interlocking ball valve according to claim 1, characterized in that, Both valve bodies have guide rods and insertion holes on their mating end faces. The guide rods of the two valve bodies are respectively adapted to the insertion holes of the other valve body to achieve axial insertion. A sealing ring is provided at the interface.

5. A direct-push interlocking ball valve according to claim 1, characterized in that, The housing is fixedly installed on the valve body. A first groove is formed on the upper end of the housing on the side away from the valve body, and a second groove is formed on the side of the housing close to the valve body. The second groove is opposite to the limiting groove. The upper part of the locking pin is slidably disposed in the second groove, and the lower part of the locking pin is slidably disposed in the limiting groove. In the first state, the locking pin extends into the limiting groove, and in the second state, the locking pin retracts from the limiting groove.

6. A direct-push interlocking ball valve according to claim 5, characterized in that, The trigger is an axial push rod fixed to the mating end face of the valve body, and the end of the push rod is provided with a wedge-shaped inclined surface; the upper end of the locking pin is provided with a ramp structure that cooperates with the wedge-shaped inclined surface, the wedge-shaped inclined surface extends into the first groove and slides against the ramp structure, in the second state, the push rod moves axially and pushes the locking pin to slide away from the limiting groove through the wedge-shaped inclined surface.

7. A direct-push interlocking ball valve according to claim 6, characterized in that, The locking pin has a third groove on the side near the valve body. The elastic reset element is a return spring, which is disposed in the third groove. One end of the return spring abuts against the groove wall of the third groove, and the other end abuts against the outer wall of the valve body.

8. A direct-push interlocking ball valve according to claim 5, characterized in that, The operating handle is provided with a gear positioning mechanism, and the end of the operating handle is provided with a fourth groove. The gear positioning mechanism includes: The pressing rod is slidably disposed in the fourth groove at the end of the operating handle. The pressing rod has a stepped shaft structure that is wide at both ends and narrow in the middle. A compression spring abuts against one end of the pressing rod and the bottom wall of the fourth groove; A locking bead is provided; a limiting hole is provided between the operating handle and the valve body; the limiting hole communicates with the fourth groove; and the locking bead is disposed in the limiting hole. The outer wall of the valve body is provided with a first locking groove and a second locking groove along the rotation path of the operating handle. The locking ball can be selectively embedded in the first locking groove or the second locking groove under the elastic force of the compression spring, so as to maintain the closed position or the open position of the operating handle accordingly. The side wall of the operating handle is provided with a threaded hole that communicates with the fourth groove. An anti-disengagement bolt is installed in the threaded hole. The rod of the anti-disengagement bolt extends into the fourth groove and is located at the narrow neck of the pressing rod to limit the axial travel of the pressing rod.

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