Direct insertion self-locking type sealing fluid connector

Abstract

The invention discloses a direct-insertion self-locking type sealing fluid connector, which relates to the technical field of fluid connectors and comprises a socket and a plug. The plug is provided with a first bulge; the socket comprises a first pipe body, a second pipe body, a third pipe body, a first telescopic pipe, a second telescopic pipe and a rotary locking pipe; a boss pipe section protruding outwards in the radial direction is arranged at the end, close to the inserting end, of the first telescopic pipe, and a radial through hole is formed in the boss pipe section. A first movable part capable of moving in the radial direction is arranged in the through hole; the inner wall of the first pipe body is provided with a third limiting protrusion protruding inwards, and the third limiting protrusion can abut against or release the first movable part inwards in the radial direction. In the process of plugging and locking the plug and the socket, the plug and the socket do not need to be aligned or held by hands, the plug and the socket can be locked even in a narrow space in a liquid cooling case, the occupied space is small, the operation is convenient, and the locking sealing performance is good; in the process of disconnecting the plug and the socket, hand holding or other complex operation occupying space is not needed, and the jamming probability is small.

Description

Technical Field

[0001] The invention relates to the technical field of fluid connectors, in particular to a straight-insertion self-locking sealed fluid connector. Background Art

[0002] Small-diameter fluid connectors are mainly used in the connection between the liquid cooling plate and the liquid cooling chassis pipeline, forming a dual-channel liquid cooling circulation system with one inlet and one outlet. When removing and installing the liquid cooling plate, the liquid cooling pipeline needs to be connected and disconnected in a narrow space. Conventional fluid connectors require both hands to support the operation when inserting and locking the male and female ends. It is inconvenient to operate in the narrow space of the liquid cooling chassis, and a large reserved space needs to be reserved. There are problems such as difficulty in plugging the male and female ends, low efficiency, and difficulty in locking. Summary of the invention

[0003] The purpose of the present invention is to provide a direct plug-in self-locking sealed fluid connector to solve the problems that the fluid connector in the prior art needs to be operated with both hands, is inconvenient to operate in the narrow space of the liquid cooling chassis, requires a large operating space to be reserved, and has the problems of difficulty in plugging the male and female ends, low efficiency and difficulty in locking.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A straight-insertion self-locking sealed fluid connector, comprising a socket and a plug that are matingly connected to each other;

[0006] The outer wall of the plug is provided with first protrusions which are successively close to the plug-in end from near to far; the first protrusions protrude radially outward;

[0007] The socket comprises: a first tube body, a second tube body, a third tube body, a first telescopic tube, a second telescopic tube and a rotary locking tube; the first tube body, the second tube body and the third tube body are arranged in sequence from outside to inside in the radial direction and are nested one by one; the adjacent two side walls of the first tube body and the second tube body are respectively provided with a first limiting protrusion and a second limiting protrusion that match each other, and a first elastic member is provided between the first tube body and the second tube body; the first telescopic tube is provided between the second tube body and the third tube body;

[0008] The first telescopic tube is provided with a radially outwardly protruding boss tube section at one end adjacent to the plug-in end, and the boss tube section is provided with a radial through hole; a first movable member capable of radial movement is provided in the through hole; and a second elastic member is provided at one end of the first telescopic tube away from the plug-in end;

[0009] The inner wall of the first tube body is provided with a third limiting protrusion which cooperates with the first movable part and protrudes inward, thereby being able to push radially inward or release the first movable part;

[0010] The second telescopic tube close to the plug-in end can be pressed against the third tube body, and the second telescopic tube is provided with a third elastic member away from the plug-in end; the end of the rotary locking tube close to the plug-in end is provided with internal and external thread sections, and can be pressed against the first elastic member and the third elastic member respectively;

[0011] The outer wall of the inner and outer threaded section is threadedly connected to the second tube body; the inner wall of the inner and outer threaded section is threadedly connected to the third tube body, and the end portion is tightly pressed against the second elastic member.

[0012] The straight-insert self-locking sealed fluid connector described in the present invention, in the process of plugging and locking the plug and the socket, the first protrusion of the plug is plugged into place to the inner side of the first movable part, and the first elastic part, the second elastic part and the third elastic part can be compressed by screwing the rotating locking tube into the plug end, thereby pressing and pushing the first tube body, the first telescopic tube and the second telescopic tube to move axially toward the plug end, and the second tube body and the third tube body are driven to move axially toward the plug end by screwing the threads of the internal and external threaded sections; thereby the third limiting protrusion radially pushes the first movable part to move radially, and the third limiting protrusion is clamped on the first protrusion On the side away from the plug-in end, the plug and the socket are plugged in and automatically locked. Since the plug and the socket are plugged in along the axial direction of the first tube body or the second tube body, and the rotary locking tube is rotated to move axially, there is no need for alignment or manual support to complete the locking of the outer walls of the plug and the socket. Even in the narrow space of the liquid-cooled chassis, the plug and the socket can be locked only by rotating the rotary locking tube, which occupies a small space and is easy to operate. Moreover, through the cooperation of three elastic parts, it has an elastic fitting and tightening effect, which can avoid the loosening of the locking fit caused by mechanical interference errors during operation, and thus has better locking and sealing performance.

[0013] The straight-plug self-locking sealed fluid connector described in the present invention, during the process of disconnecting the plug and the socket, only needs to push or toggle the first shell away from the axial end of the plug-in connection to compress the first elastic member, so that the third limiting protrusion of the first shell is axially displaced, thereby releasing the radial tightening effect on the first movable member, so that the first movable member moves outward from the side of the first protrusion away from the plug-in end, thereby releasing the limitation on the outer wall of the plug, and realizing the release of the locking connection between the plug and the socket. Compared with the traditional locking method of handles or spring buckles, similarly, it does not require hand support or other complicated operations that take up space, occupies less space, is easy to operate, and has a lower probability of jamming.

[0014] Preferably, in the straight-insert self-locking sealed fluid connector described in the present invention, the through holes include a plurality of through holes arranged in a circumferential array on the boss pipe section; the plurality of through holes are all matched with the first movable part; the number of the third limiting protrusions matches the number of the first movable parts.

[0015] As a preferred embodiment of the present invention, by providing a plurality of the through holes and the first movable part, and cooperating with providing the third limiting protrusions with the same number, the stress of radial shaking of the first tube body, the first telescopic tube and the plug during axial movement can be dispersed, so that the first telescopic tube can be locked more smoothly during axial movement and axial movement with the first tube body, thereby further improving the airtightness of the locking connection between the plug and the socket, and further improving the locking and sealing performance.

[0016] Preferably, in the straight-insert self-locking sealed fluid connector described in the present invention, the first protrusion is provided with a slope whose height gradually decreases near the plug-in end.

[0017] As a preferred solution of the present invention, by setting a slope whose height gradually decreases near the plug-in end, during the axial movement of the plug close to the plug-in end of the socket, the first movable part can be gradually pushed outward to the highest position through the slope, thereby avoiding locking errors before rotating the rotary locking tube, improving the smoothness of the connection and plug-in operation, reducing the failure rate, and improving the performance.

[0018] Preferably, in the straight-insert self-locking sealed fluid connector described in the present invention, at least one of the first elastic member, the second elastic member and the third elastic member is configured as a spring.

[0019] As a preferred solution of the present invention, by setting the first elastic part, the second elastic part or the third elastic part as a spring, they all have columnar axial elastic potential energy and a high degree of shape matching with the first tube body, the second tube body or the third tube body, which can reduce mechanical friction or jamming, further reduce the failure rate during self-locking or disconnection, and improve performance.

[0020] Preferably, in the straight-insert self-locking sealed fluid connector described in the present invention, the first movable part is spherical.

[0021] As a preferred solution of the present invention, by setting the first movable part to be spherical, when the first protrusion or the third limiting protrusion applies a pressing force to the first movable part, the spherical first movable part can rotate without shifting, thereby further reducing mechanical friction, enhancing the adaptation strength of the locking, improving the tightness of the locking connection of the connector, reducing the failure rate, and improving the operational performance.

[0022] Preferably, in the straight-insert self-locking sealed fluid connector described in the present invention, the third limiting protrusion is configured as a protrusion with a middle protrusion and slopes on both sides.

[0023] As a preferred solution of the present invention, the specific middle protrusion of the third limiting protrusion and the protrusions on both sides of the slope can enhance the radial clamping strength on the first movable part and reduce the relative sliding of the first movable part and the third limiting protrusion. Combined with the size and position design, the middle protrusion force of the third limiting protrusion can be applied to the geometric center of the first movable part, further reducing the possibility of loosening or sliding after locking, thereby improving the safety and reliability of the connector after locking.

[0024] Preferably, in the straight-insert self-locking sealed fluid connector of the present invention, a second protrusion is provided on a side of the first protrusion away from the plug-in end; and the second protrusion can abut against the first telescopic tube along the axial direction.

[0025] As a preferred embodiment of the present invention, by providing the second protrusion, after the plug and the socket are self-locked, the second protrusion can be abutted against the first telescopic tube, which, on the one hand, further limits the excessive displacement of the first telescopic tube and enhances the adaptability of the connector locking; on the other hand, a closed space can be formed between the second protrusion and the first telescopic tube to enhance the airtightness of the connector.

[0026] Preferably, in the straight-insert self-locking sealed fluid connector described in the present invention, first sealing rings are provided on the inner and outer sides of the second telescopic tube; and a second sealing ring is provided between the rotary locking tube and the third tube body.

[0027] As a preferred solution of the present invention, by providing a first sealing ring and a second sealing ring, the interior of the socket has better sealing performance, reducing the risk of fluid leakage or damage to the connector, and further improving the sealing performance of the connector locking.

[0028] Preferably, in the straight-insert self-locking sealed fluid connector described in the present invention, a sealing tube is provided on the plug away from the plug-in end; the sealing tube is connected to the inner wall of the plug by interference fit; a fourth elastic member is provided on the inner wall of the plug; and the end of the fourth elastic member abuts against the sealing tube.

[0029] As a preferred solution of the present invention, a sealing tube and a fourth elastic member are provided, which can play a buffering role in the process of inserting the plug into or withdrawing the plug from the socket. After the plug and the socket are locked and connected, the elastic potential energy of the fourth elastic member can be maintained, so that the end of the plug can have a plugging force, thereby avoiding withdrawal or loosening of the plug, further enhancing the tightness of the connector connection, enhancing the reliability of the locking connection, and improving the sealing protection performance.

[0030] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0031] 1. There is no need for alignment or hand support to complete the locking of the outer wall of the plug and the socket. Even in the narrow space of the liquid-cooled chassis, the plug and the socket can be locked only by rotating the rotating locking tube, which occupies a small space and is easy to operate. In addition, through the cooperation of the three elastic parts, it has an elastic fit and tightening effect, which can avoid the loosening of the locking fit caused by the mechanical interference error during operation, and thus has better locking and sealing performance;

[0032] 2. In the process of disconnecting the plug and the socket, compared with the traditional locking method of handles or spring buckles, there is no need for hand support or other complicated operations that take up space. It occupies less space, is easy to operate, and has a lower probability of jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a three-dimensional structural cross-sectional view of the present invention;

[0034] Figure 2 is a three-dimensional structural cross-sectional view of the socket of the present invention;

[0035] Figure 3 is a three-dimensional structural cross-sectional view of the plug of the present invention;

[0036] Figure 4 It is a schematic diagram of the state of the plug and the socket locking connection process of the present invention;

[0037] Figure 5 It is a schematic diagram of the state of the disconnection process of the plug and the socket of the present invention;

[0038] Icons: 1. Plug; 11. First protrusion; 12. Second protrusion; 13. Sealing tube; 14. Fourth elastic member; 2. Socket; 21. First tube body; 211. First limiting protrusion; 212. Third limiting protrusion; 22. Second tube body; 221. Second limiting protrusion; 23. Third tube body; 24. First telescopic tube; 241. Boss tube section; 242. Through hole; 243. First movable member; 25. Second telescopic tube; 26. Rotary locking tube; 261. Internal and external threaded sections; 27. First elastic member; 28. Second elastic member; 29. ​​Third elastic member; 3. First sealing ring; 4. Second sealing ring. DETAILED DESCRIPTION

[0039] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0040] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0041] Embodiment 1:

[0042] like Figures 1 to 5 As shown, the present invention provides a straight-insertion self-locking sealed fluid connector, comprising a plug 1 and a socket 2 that are matingly plugged in each other; the outer wall of the plug 1 is provided with first protrusions 11 that are successively close to the plug end from near to far; the first protrusions 11 protrude radially outward;

[0043] The socket 2 includes: a first tube body 21, a second tube body 22, a third tube body 23, a first telescopic tube 24, a second telescopic tube 25 and a rotary locking tube 26; the first tube body 21, the second tube body 22 and the third tube body 23 are arranged in sequence from the outside to the inside in the radial direction and are nested one by one; the adjacent two side walls of the first tube body 21 and the second tube body 22 are respectively provided with a first limiting protrusion 211 and a second limiting protrusion 221 that match each other, and a first elastic member 27 is provided between the first tube body 21 and the second tube body 22; the first telescopic tube 24 is provided between the second tube body 22 and the third tube body 23;

[0044] A radially outwardly protruding boss tube section 241 is provided at one end of the first telescopic tube 24 adjacent to the plug-in end, and a radial through hole 242 is formed on the boss tube section 241; a radially movable first movable member 243 is provided in the through hole 242; a second elastic member 28 is provided at one end of the first telescopic tube 24 away from the plug-in end; a third limiting protrusion 212 is provided on the inner wall of the first tube body 21, which cooperates with the first movable member 243 and protrudes inward, so as to be able to push or release the first movable member 243 radially inward; the second telescopic tube 25 can be pressed against the third tube body 23 near the plug-in end, and a third elastic member 29 is provided on the second telescopic tube 25 away from the plug-in end; an internal and external threaded section 261 is provided at one end of the rotary locking tube 26 near the plug-in end, and can be pressed against the first elastic member 27 and the third elastic member 29 respectively; the outer wall of the internal and external threaded section 261 is threadedly connected to the second tube body 22; the inner wall of the internal and external threaded section 261 is threadedly connected to the third tube body 23, and the end thereof is pressed against the second elastic member 28.

[0045] It should be noted that the plug end is understood to be the end of the plug 1 and the socket 2 for plugging. Figure 2 The upper end of the socket 2 is shown, and the lower end of the plug 1 is shown.

[0046] The rotary locking tube 26 described in the present invention is understood as a pipe fitting that can rotate relative to the second tube body 22 and the third tube body 23 through its internal and external threaded sections 261; it should be noted that the internal and external threaded sections 261 are understood as a pipe section with internal threads on the inside and external threads on the outside.

[0047] The radial direction mentioned in the present invention is understood to be perpendicular to the plug-in direction, and is also understood to be that the plug 1 and the socket 2 are tubular parts, the axial direction of the tubular part is axial, and the radial direction of the tubular part is radial; the radial through hole 242 is understood to be a through hole 242 that radially passes through the boss tube segment 241; specifically, the through hole 242 includes a plurality of through holes 242 arranged in a circumferential array on the boss tube segment 241; the plurality of through holes 242 are all matched with a first movable part 243; the number of the third limiting protrusions 212 matches the number of the first movable parts 243.

[0048] It should be noted that the first movable member 243 of the present invention is understood as a member that can move radially outward or inward along the through hole 242. Figure 2 or Figure 1 As shown, the first movable member 243 is spherical, and can not only move radially outward and inward, but also rotate on its own, such as a bearing steel ball.

[0049] The first protrusion 11 of the present invention is understood to be a tube wall protruding radially outward along the outer wall of the plug 1. Figure 3 , Figure 4 and Figure 5 As shown, the first protrusion 11 is provided with a slope whose height gradually decreases near the plug-in end.

[0050] The elastic member described in the present invention is understood to be a component with elastic recovery ability, such as a spring or an elastic arm. Specifically, at least one of the first elastic member 27, the second elastic member 28 and the third elastic member 29 described in the present invention is configured as a spring. For example, the fourth elastic member 14 may also be preferably a spring.

[0051] The protrusion direction of the third limiting protrusion 212 of the present invention is opposite to that of the first protrusion 11, and is understood as a tube wall that convexes radially inwardly on the inner wall of the first tube body 21. For details, refer to Figure 1 and Figure 2 As shown, the third limiting protrusion 212 is configured to be a protrusion with a middle protrusion and slopes on both sides.

[0052] refer to Figure 1 and Figure 3 As shown, specifically, the second protrusion 12 is provided on the side of the first protrusion 11 of the present invention away from the plug-in end; the second protrusion 12 can abut against the first telescopic tube 24 along the axial direction.

[0053] In order to improve the sealing performance of the connector of the present invention, refer to Figure 2 As shown, first sealing rings 3 are provided on the inner and outer sides of the second telescopic tube 25 ; and a second sealing ring 4 is provided between the rotary locking tube 26 and the third tube body 23 .

[0054] It should be noted that the first, second, third and fourth described in the present invention are only limitations for the purpose of clear description and are not interpreted as specific numerical values. The characteristics of the tube body or the sealing ring are defined according to the specific description characteristics.

[0055] Specifically, refer to Figure 3 As shown, the plug 1 is provided with a sealing tube 13 away from the plug-in end; the sealing tube 13 is connected to the inner wall of the plug 1 by interference fit; the inner wall of the plug 1 is provided with a fourth elastic member 14; the end of the fourth elastic member 14 abuts against the sealing tube 13.

[0056] refer to Figure 4 As shown, the process of locking connection between the plug 1 and the socket 2 of the present invention is as follows: the plug 1 moves toward the socket 2 along the plugging direction, and the first protrusion 11 of the plug 1 is plugged into the inner side of the first movable member 243. By screwing the rotating locking tube 26 toward the plugging end, the first elastic member 27, the second elastic member 28 and the third elastic member 29 can be compressed, thereby pressing and pushing the first tube body 21, the first telescopic tube 24 and the second telescopic tube 25 to move axially toward the plugging end, and the second tube body 22 and the third tube body 23 are driven to move axially toward the plugging end by screwing the internal and external threaded sections 261; thereby making the third limiting protrusion 212 radially push the first movable member 243 to move radially, and the third limiting protrusion 212 is clamped on the side of the first protrusion 11 away from the plugging end, so that the plug 1 and the socket 2 are plugged and automatically locked.

[0057] refer to Figure 5 As shown, the process of disconnecting the plug 1 and the socket 2 of the present invention is as follows: the first shell is pushed or toggled away from the axial end of the plug-in connection, the first elastic member 27 is compressed, and the third limiting protrusion 212 of the first shell is axially displaced, thereby releasing the radial pressing effect on the first movable member 243, so that the first movable member 243 moves outward from the side of the first protrusion 11 away from the plug-in end, thereby releasing the limiting on the outer wall of the plug 1, and realizing the release of the locking connection between the plug 1 and the socket 2.

[0058] With the modular development of the liquid cooling system, the connector of the present invention simplifies the insertion and disconnection operations of the fluid connector, can reduce the reserved operating space in the chassis, improve the space utilization rate in the chassis, and improve efficiency and user experience.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A straight-insert self-locking sealed fluid connector, characterized in that: It comprises a plug (1) and a socket (2) which are plugged into each other; The outer wall of the plug (1) is provided with first protrusions (11) which are successively closer to the plug-in end from near to far; the first protrusions (11) protrude radially outward; The socket (2) comprises: a first tube body (21), a second tube body (22), a third tube body (23), a first telescopic tube (24), a second telescopic tube (25) and a rotary locking tube (26); the first tube body (21), the second tube body (22) and the third tube body (23) are arranged in sequence from the outside to the inside in a radial direction and are nested one by one; adjacent side walls of the first tube body (21) and the second tube body (22) are respectively provided with a first limiting protrusion (211) and a second limiting protrusion (221) that cooperate with each other, and a first elastic member (27) is provided between the first tube body (21) and the second tube body (22); the first telescopic tube (24) is provided between the second tube body (22) and the third tube body (23); A radially outwardly protruding boss tube section (241) is provided at one end of the first telescopic tube (24) adjacent to the plug-in end, and a radial through hole (242) is formed in the boss tube section (241); a first movable member (243) capable of radial movement is provided in the through hole (242); a second elastic member (28) is provided at one end of the first telescopic tube (24) away from the plug-in end; The inner wall of the first tube body (21) is provided with a third limiting protrusion (212) which cooperates with the first movable member (243) and protrudes inward, thereby being able to push radially inward or release the first movable member (243); The second telescopic tube (25) is capable of being pressed against the third tube body (23) near the plug-in end, and a third elastic member (29) is provided on the second telescopic tube (25) away from the plug-in end; an end of the rotary locking tube (26) near the plug-in end is provided with internal and external threaded sections (261), and can be pressed against the first elastic member (27) and the third elastic member (29) respectively; The outer wall of the internal and external threaded section (261) is threadedly connected to the second tube body (22); the inner wall of the internal and external threaded section (261) is threadedly connected to the third tube body (23), and the end portion is tightly pressed against the second elastic member (28).

2. The plug-in self-locking sealed fluid connector according to claim 1, characterized in that: The through holes (242) include a plurality of through holes (242) arranged in a circumferential array on the boss tube section (241); the plurality of through holes (242) are all matched with the first movable part (243); the number of the third limiting protrusions (212) matches the number of the first movable parts (243).

3. The plug-in self-locking sealed fluid connector according to claim 1, characterized in that: The first protrusion (11) is provided with a slope whose height gradually decreases near the plug-in end.

4. The plug-in self-locking sealed fluid connector according to claim 1, characterized in that: At least one of the first elastic member (27), the second elastic member (28) and the third elastic member (29) is configured as a spring.

5. The plug-in self-locking sealed fluid connector according to claim 1, characterized in that: The first movable member (243) is spherical.

6. The plug-in self-locking sealed fluid connector according to claim 1, characterized in that: The third limiting protrusion (212) is configured as a protrusion with a middle protrusion and slopes on both sides.

7. The straight-insert self-locking sealed fluid connector according to claim 1, characterized in that: A second protrusion (12) is provided on a side of the first protrusion (11) away from the plug-in end; the second protrusion (12) can abut against the first telescopic tube (24) along the axial direction.

8. The plug-in self-locking sealed fluid connector according to any one of claims 1 to 7, characterized in that: A first sealing ring (3) is provided on the inner side and the outer side of the second telescopic tube (25); and a second sealing ring (4) is provided between the rotary locking tube (26) and the third tube body (23).

9. The plug-in self-locking sealed fluid connector according to any one of claims 1 to 7, characterized in that: The plug (1) is provided with a sealing tube (13) away from the plug-in end; the sealing tube (13) is connected to the inner wall of the plug (1) by interference fit; the inner wall of the plug (1) is provided with a fourth elastic member (14); the end of the fourth elastic member (14) abuts against the sealing tube (13).

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