Connecting end, pipeline connector and liquid cooling system

Abstract

The utility model discloses a connecting end, pipeline connector and liquid cooling system, wherein the connecting end comprises a valve seat, a valve core and a locking pin, the valve core is rotatably arranged on the valve seat to open and close the flow channel of the valve seat, and the locking pin can move along the axial direction of the rotating axis of the valve core. The valve element can be prevented from rotating relative to the valve seat when the valve element moves to a first position in the first axial direction; the locking pin can rotate to enter the limiting position when moving to the second position in the second axial direction to be separated from the first position, the valve seat is provided with a guiding part, and the valve element is provided with a pushing part. When the valve element rotates relative to the valve seat, the locking pin moves by a preset stroke from the second position in the second axial direction, and in the moving process, the guiding part can guide the locking pin to rotate so as to retreat from the limiting position. Due to the fact that the locking pin retreats from the limiting position in the process of rotating the valve element, a user does not need to operate the locking pin to retreat from the limiting position again after rotating the valve element, operation steps can be reduced, and operation convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, and in particular to a connecting end, a pipeline connector and a liquid cooling system. Background Art

[0002] The liquid cooling system usually includes pipes and connectors, and the pipes are connected by connectors. For liquid cooling systems used in servers or other systems with high requirements for leak-proof effects, the connector usually includes a male end and a female end. The male end and the female end respectively include a valve seat and a valve core. When the male end and the female end are disconnected, the valve core needs to close the flow channel in the valve seat to prevent liquid leakage in the pipeline; when the male end and the female end are docked and rotated relative to each other, they can push each other's valve cores to rotate to open the flow channel.

[0003] In the process of implementing the present application, it was found that there are at least the following problems in the prior art: the valve core of the existing connector is locked by a pin. When the male end and the female end need to rotate relative to each other to open and close the flow channel, the pin needs to be retracted to the locked state first. After the valve core is rotated to the target position, the pin needs to be manually unlocked from the locked state, which increases the operating steps when disassembling and assembling the connector, thereby increasing the labor intensity, especially for liquid cooling systems with a large number of connectors, which will affect work efficiency.

[0004] Therefore, how to improve the efficiency of assembly and disassembly of the connector and its ease of use is a technical problem that those skilled in the art currently need to solve. Utility Model Content

[0005] The purpose of the utility model is to provide a connecting end, a pipe connector and a liquid cooling system, which can effectively improve the efficiency of disassembly and assembly of the connector and the convenience of use.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A connecting end comprises a valve seat, a valve core and a locking pin, wherein the valve core is rotatably arranged on the valve seat to open and close the flow channel of the valve seat, the locking pin can move in the axial direction of the valve core rotation axis, and can prevent the valve core from rotating relative to the valve seat when it moves along the first axial direction to the first position; the locking pin can rotate to enter a restricted position when it moves along the second axial direction to the second position to disengage from the first position, and the locking pin can be prevented from entering the first position when it is located at the restricted position, and the valve seat is provided with a guiding portion for guiding the locking pin in the restricted position to rotate to exit the restricted position after the locking pin moves a preset stroke along the second axial direction from the second position; the valve core is provided with a pushing portion for pushing the locking pin to move the preset stroke along the second axial direction from the second position when the valve core rotates relative to the valve seat.

[0008] In some embodiments, a pin hole is provided on the valve seat, a limiting guide cylinder is provided on the inner wall of the pin hole, a first elastic member is further provided inside the pin hole, a limiting tooth and a guiding inclined surface are provided at one end of the limiting guide cylinder, the guiding portion is a guiding inclined surface, and a guiding groove is provided on the side wall of the limiting guide cylinder; the locking pin comprises a tooth top block and a pin, a limiting strip is provided on the outer periphery of the tooth top block, a top tooth is provided on the end of the limiting strip facing the pin, the two ends of the first elastic member are respectively pressed against the pin hole and the tooth top block, and the pin faces the tooth top block. A pushing tooth is provided at one end, and the pin is used to push the tooth top block to rotate through the pushing tooth and the top tooth so that the top tooth is engaged with the limiting tooth. When the pin moves from the second position along the axial second direction by the preset stroke, the top tooth is pushed to move out of the limiting tooth, and the tooth top block is rotated under the guidance of the guide inclined surface so that the limiting strip corresponds to the guide groove. The tooth top block moves toward the pin under the elastic force of the first elastic member to push the pin to move along the axial first direction to the first position.

[0009] In some embodiments, a pin hole is provided on the valve seat, a slide groove extending axially thereof is provided on the side of the pin hole, a baffle rod extending from the slide groove is provided on the side of the locking pin, and the baffle rod can move relative to the slide groove to drive the locking pin to move axially in the pin hole; a second elastic member is provided in the pin hole, and the second elastic member is respectively abutted against one end of the locking pin away from the valve core and the pin hole; a first limiting groove is provided on the side wall of the slide groove, and a side of the first limiting groove away from the valve core and / or a side of the baffle rod away from the valve core A guiding slope is provided on one side of the first limit groove, and the guiding slope on the first limit groove is the guiding part. When the locking pin moves along the second axial direction until the baffle rod corresponds to the first limit groove, the baffle rod is rotated to be engaged in the first limit groove. When the valve core rotates relative to the valve seat, the locking pin can be pushed by the pushing part to move the preset stroke along the second axial direction, and the baffle rod can be rotated into the slide groove under the action of the guiding slope, and the locking pin is pressed against the valve core under the elastic force of the second elastic member.

[0010] In some embodiments, a locking hole is provided on the valve core, and the opening of the locking hole toward the locking pin is a flared opening, and the inner inclined surface of the flared opening is the pushing portion. When the locking pin is in the first position, one end thereof facing the valve core passes through the flared opening and extends into the locking hole. When the locking pin is in the second position, one end thereof facing the valve core is located in the flared opening.

[0011] In some embodiments, the locking hole includes an open locking hole and a closed locking hole, and the open locking hole and the closed locking hole are distributed along the circumferential direction of the valve core. When the valve core rotates to the open locking hole or the closed locking hole corresponding to the locking pin, one end of the locking pin facing the valve core can extend into the open locking hole or the closed locking hole.

[0012] In some embodiments, the locking pin is provided with a push slope at one end facing the valve core, and when the valve core rotates relative to the valve seat, the pushing portion moves the locking pin from the second position along the axial second direction to the preset stroke through the push slope.

[0013] In some embodiments, a protrusion is provided on one end of the valve core facing the locking pin, and the pushing portion is provided on the protrusion.

[0014] In some embodiments, a side portion of the locking pin is provided with a pushing member extending out of the valve seat.

[0015] A pipe connector comprises a male end and a female end which are butt-jointed and relatively rotatable, wherein the male end and the female end are both the connection ends described in any one of the above items.

[0016] A liquid cooling system comprises a pipeline and a pipeline connector, wherein the pipeline and the pipeline connector are connected.

[0017] Compared with the prior art, the above technical solution has the following advantages:

[0018] The utility model provides a connection end, the valve seat is provided with a guide part, the valve core is provided with a push part, when the valve core rotates relative to the valve seat, the locking pin moves a preset stroke from the second position along the axial second direction, and in the process of movement, due to the action of the guide part, the locking pin in the restricted position can be guided to rotate to exit the restricted position. Since the locking pin exits the restricted position during the process of rotating the valve core, there is no need for the user to operate the locking pin again to exit from the restricted position after rotating the valve core, so the user's operation steps can be reduced, thereby improving the convenience of operation. In the specific use process, the labor intensity can be significantly reduced, and the disassembly efficiency and convenience of use can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1A structural schematic diagram of a connection end provided by a specific implementation mode of the utility model;

[0021] Figure 2 for Figure 1 A magnified view of area A;

[0022] Figure 3 A schematic structural diagram of a pipe connector provided by a specific embodiment of the utility model;

[0023] Figure 4 A schematic diagram of an exploded structure of a connection end provided in a specific embodiment of the utility model;

[0024] Figure 5 A schematic diagram of the structure of a tooth top block of a connection end provided by a specific implementation mode of the present application when withdrawing from a restricted position;

[0025] Figure 6 A schematic diagram of the structure of a tooth top block and a limiting guide cylinder at a connection end provided by a specific implementation mode of the present application when they are in a clamping state;

[0026] Figure 7 A schematic diagram of the structure of a valve seat and a locking pin at a connection end provided in another specific embodiment of the present invention when they are in a separated state;

[0027] Figure 8 A schematic diagram of an exploded structure of a connection end provided in another specific implementation manner of the present application.

[0028] The reference numerals are as follows:

[0029] 10-valve seat, 101-limiting position, 102-guiding part, 11-valve body, 12-valve cover, 13-flow channel, 14-pin hole, 141-sliding groove, 142-first limiting groove, 143-guiding inclined surface;

[0030] 20-valve core, 201-pushing part, 21-locking hole, 211-expansion, 22-opening locking hole, 23-closing locking hole;

[0031] 30-locking pin, 301-axial first direction, 302-axial second direction, 31-pin, 311-pushing tooth, 32-limiting guide cylinder, 321-limiting tooth, 322-guide groove, 323-guide inclined plane, 33-tooth top block, 331-limiting strip, 332-top tooth, 34-first elastic member, 35-pushing member, 36-blocking rod, 37-second elastic member. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Please refer to Figure 1 , a connection end provided by an embodiment of the utility model includes a valve seat 10, a valve core 20 and a locking pin 30. The valve core 20 is rotatably arranged on the valve seat 10 to open and close the flow channel 13 of the valve seat 10. The locking pin 30 can move in the axial direction of the rotation axis of the valve core 20, and when it moves to the first position along the first axial direction 301, it can prevent the valve core 20 from rotating relative to the valve seat 10; when the locking pin 30 moves to the second position along the second axial direction 301, it can rotate to enter the restricted position 101. The movement of the locking pin 30 along the first axial direction 301 refers to the movement of the locking pin 30 toward the valve core 20, and the movement of the locking pin 30 along the second axial direction 302 refers to the movement of the locking pin 30 toward the direction away from the valve core 20. The first position refers to the position where the locking pin 30 prevents the valve core 20 from rotating relative to the valve seat 10, and the second position refers to the axial position where the locking pin 30 can be clamped with the valve seat 10. The valve seat 10 is provided with a guide portion 102, and the valve core 20 is provided with a push portion 201. When the valve core 20 rotates relative to the valve seat 10, the locking pin 30 moves from the second position to a preset stroke along the axial second direction 302. During the movement, the locking pin 30 in the restricted position 101 can be guided to rotate under the action of the guide portion 102 to exit the restricted position 101. Since the locking pin 30 exits the restricted position 101 during the process of rotating the valve core 20, the user does not need to operate the locking pin 30 again to exit from the restricted position 101 after rotating the valve core 20, so the user's operation steps can be reduced, thereby improving the convenience of operation. In the specific use process, when the two connection ends are rotated for docking or rotational disassembly, the labor intensity can be significantly reduced, and the disassembly efficiency and convenience of use can be improved.

[0034] In some embodiments, please refer to Figure 1 to Figure 6The locking pin 30 is a push-type telescopic pin. In order to facilitate the user to operate the locking pin 30 to move, a pusher 35 extending from the valve seat 10 can be provided on the side of the locking pin 30, wherein an anti-slip layer can be provided on the pusher 35, and the pusher 35 can be optionally a plate-like structure or a block-like structure. The valve seat 10 is provided with a pin hole 14, and a pusher 35 extends from the side wall of the pin hole 14. A limiting guide cylinder 32 is provided on the inner wall of the pin hole 14. A first elastic member 34 is also provided inside the pin hole 14. A limiting tooth 321 and a guide slope 323 are provided at one end of the limiting guide cylinder 32. The guiding part is the guide slope 323. A guide groove 141 is provided on the side wall of the limiting guide cylinder 32. The locking pin 30 includes a tooth top block 33 and a pin 31. A limiting strip 331 is provided on the outer periphery of the tooth top block 33. A top tooth 332 is provided on the end of the limiting strip 331 facing the pin 31. The two ends of the first elastic member 34 are respectively pressed against the pin hole 14 and the tooth top block 33. The pin 31 faces the tooth top block 33. A pushing tooth 311 is provided at one end of the top block 33, and the pin 31 is used to push the tooth top block 33 to rotate through the pushing tooth 311 and the top tooth 332, so that the top tooth 332 is engaged with the limiting tooth 321, and the tooth groove position of the limiting tooth 321 is the limiting position 101; when the pin 31 moves a preset stroke from the second position along the axial second direction 302, the top tooth 332 is pushed to move out of the limiting tooth 321, and the tooth top block 33 is rotated under the guidance of the guide inclined surface 323, so that the limiting strip 331 corresponds to the guide groove 141, and the tooth top block 33 moves toward the pin 31 under the elastic force of the first elastic member 34, so as to push the pin 31 to move to the first position along the axial first direction 301.

[0035] The pin hole 14 is a through hole, and a screw is connected to the internal thread of the pin hole 14 at one end away from the valve core 20. One end of the first elastic member 34 abuts against the screw, and the other end abuts against the tooth top block 33. The first elastic member 34 is preferably a spring. In order to improve the connection stability of the spring, a positioning rod can be provided on the screw, and the spring is sleeved on the positioning rod to ensure that the spring is axially retracted. The elastic force of the first elastic member 34 on the tooth top block 33 can be adjusted by the screw. For example, when the screw is turned toward the tooth top block 33, it is equivalent to reducing the retractable stroke of the spring. When the screw is turned in the direction away from the tooth top block 33, it is equivalent to increasing the retractable stroke of the spring. Therefore, by adjusting the elastic force of the spring, its assembly flexibility can be improved, and the problem of limiting the rotation of the valve core 20 or making it difficult to push the locking pin 30 due to too small or too large spring elastic force can be avoided.

[0036] In some embodiments, Figure 7 and Figure 8As shown, a pin hole 14 is provided on the valve seat 10, and a slide groove 141 extending axially thereof is provided on the side of the pin hole 14, and a blocking rod 36 extending from the slide groove 141 is provided on the side of the locking pin 30, and the blocking rod 36 can move relative to the slide groove 141 to drive the locking pin 30 to move axially in the pin hole 14, wherein a pushing member 35 can be provided on the end of the blocking rod 36 extending from the slide groove 141, and the user can drive the blocking rod 36 by operating the pushing member 35, and the user can also push the blocking rod 36 to move by directly acting on the blocking rod 36 with a finger; a second elastic member 37 is provided in the pin hole 14, and the second elastic member 37 is respectively abutted with one end of the locking pin 30 away from the valve core 20 and the pin hole 14, wherein the pin hole 14 can be designed as a blind hole, and one end of the second elastic member 37 abuts on the inner end surface of the pin hole 14; the side wall of the slide groove 141 is provided with a first limiting groove 142, the position of the first limit groove 142 is the limit position 101 for limiting the locking pin 30 from moving toward the valve core 20, and a guiding bevel 143 is provided on the side of the first limit groove 142 away from the valve core 20 and / or on the side of the stop rod 36 away from the valve core 20. The guiding bevel 143 on the first limit groove 142 is the guiding portion 102. When the locking pin 30 moves along the second axial direction 302 until the stop rod 36 corresponds to the first limit groove 142, the stop rod 36 is rotated to be engaged in the first limit groove 142. When the valve core 20 rotates relative to the valve seat 10, the locking pin 30 can be pushed by the pushing portion 201 to move along the second axial direction 302 to a preset movement stroke, and the stop rod 36 is rotated to the slide groove 141 under the action of the guiding bevel 143, and the locking pin 30 is pressed against the valve core 20 under the elastic force of the second elastic member 37.

[0037] In order to clearly understand the working principle of rotating the valve core 20 to drive the locking pin 30 to withdraw from the restricted position 101, the following is an example of a guide bevel 143 provided on the side of the first limiting groove 142 away from the valve core 20: the locking pin 30 is in the second position, and the blocking rod 36 is clamped in the first limiting groove 142, the valve core 20 is rotated, and the pushing portion on the valve core 20 pushes the locking pin 30 to move in the direction away from the valve core 20, and the side of the blocking rod 36 facing the guiding bevel 143 contacts the guiding bevel 143. As the locking pin 30 moves, the locking pin 30 can be synchronously rotated under the guidance of the guiding bevel 143 until the blocking rod 36 withdraws from the first limiting groove 142. At this time, the locking pin 30 is pressed against the valve core 20 under the elastic force of the second elastic member 37, and as the valve core 20 continues to rotate, the valve core 20 rotates to a position where the locking pin 30 can lock it.

[0038] In some embodiments, Figure 1 , Figure 4 and Figure 8As shown, the valve seat 10 includes a valve body 11 and a valve cover 12, and the valve cover 12 is connected to the valve body 11 to form a chamber for accommodating the valve core 20. For example, a cylindrical section coaxial with the valve body 11 can be set at one end of the valve cover 12, and the outer diameter of the cylindrical section is smaller than the outer diameter of the valve body 11. The valve cover 12 can be covered on the cylindrical section of the valve body 11, and then the valve cover 12 can be fixed to the cylindrical section of the valve body 11 by fasteners. Specifically, a plurality of fixing holes can be set in the circumferential direction of the valve cover 12 and the cylindrical section, and the fasteners can be inserted into the fixing holes.

[0039] In some embodiments, Figure 2 As shown, a locking hole 21 is provided on the valve core 20, and the opening of the locking hole 21 toward the locking pin 30 is a flared opening 211, and the flared opening 211 can be a conical flared opening 211, and the inner inclined surface of the flared opening 211 is a pushing portion 201. When the locking pin 30 is in the first position, one end thereof facing the valve core 20 passes through the flared opening 211 and extends into the locking hole 21. At this time, if the valve core 20 is rotated, the valve core 20 cannot be rotated because the inner wall of the locking hole 21 contacts the side wall of the locking pin 30. At this time, the valve core 20 is in a locked position. When the locking pin 30 is in the second position, its end facing the valve core 20 is located in the flared opening 211. For example, the locking pin 30 can be moved along the second axial direction 302 so that the locking pin 30 is clamped on the valve seat 10, while the end of the locking pin 30 facing the valve core 20 is not completely disengaged from the locking hole 21, but is retreated into the flared opening 211. At this time, if the valve core 20 is rotated, the inner inclined surface of the flared opening 211 will push the locking pin 30 to move in the direction away from the valve core 20, and the locking pin 30 will rotate during the movement to disengage from the restricted position 101.

[0040] In some embodiments, Figure 4As shown, the locking hole 21 includes an opening locking hole 22 and a closing locking hole 23, and the opening locking hole 22 and the closing locking hole 23 are distributed along the circumferential direction of the valve core 20. When the valve core 20 rotates to the opening locking hole 22 or the closing locking hole 23 corresponding to the locking pin 30, the locking pin 30 can extend into the opening locking hole 22 or the closing locking hole 23 toward the end of the valve core 20. When the locking pin 30 extends into the opening locking hole 22 toward the end of the valve core 20, the valve core 20 is fixed relative to the valve seat 10, and the flow channel 13 in the valve seat 10 is in an open state; when the locking pin 30 extends into the closing locking hole 23 toward the end of the valve core 20, the valve core 20 is fixed relative to the valve seat 10, and the flow channel 13 in the valve seat 10 is in a closed state. The following is an example in which the valve core 20 at the two connecting ends is in the closed position and the two connecting ends need to be connected: a connecting portion is provided on the opposite side of the valve seat 10 of the two connecting ends, and an arc groove is provided on the valve seat 10. The connecting portions of the two connecting ends can be inserted into each other's arc grooves and connected to each other's valve core 20, and then the locking pin 30 is operated to retreat from the closed locking hole 23. At this time, the two valve seats 10 can be rotated, and the pushing portion on the valve core 20 can push the locking pin 30 to continue to move a preset stroke into the pin hole 14. At this time, the front end of the locking pin 30 is pressed against the end face of the valve core 20 under the action of the elastic member. When the valve core 20 is rotated to the open locking hole 22 corresponding to the locking pin 30, the locking pin 30 extends into the open locking hole 22 under the elastic force of the elastic member to achieve locking of the valve core 20 relative to the valve seat 10.

[0041] In some embodiments, the locking pin 30 is provided with a push inclined surface at one end facing the valve core 20, for example, a conical end may be provided at the front end of the locking pin 30, the inclined surface of the conical end is the push inclined surface, the locking hole 21 may be a circular hole or the opening at one end facing the locking pin 30 is a structure of a flared opening 211, and the pushing portion on the valve core 20 is the opening end of the locking hole 21 or the inner side inclined surface of the flared opening 211. When the valve core 20 rotates relative to the valve seat 10, the pushing portion may push the inclined surface to move the locking pin 30 from the second position to a preset stroke along the axial second direction 302. It should be noted that if one of the valve core 20 and the locking pin 30 has an inclined surface, the valve core 20 may be rotated to drive the locking pin 30 to continue to retract.

[0042] In some embodiments, a protrusion is provided on one end of the valve core 20 facing the locking pin 30, and a pushing portion is provided on the protrusion, wherein an inclined surface can be provided at a position where the pushing portion and / or the locking pin 30 contact the protrusion, and when the valve core 20 rotates, the locking pin 30 can be driven to move backward by the protrusion, that is, the locking pin 30 can be driven to exit the restricted position 101. Specifically, when the locking pin 30 is completely withdrawn from the locking hole 21, when the valve core 20 rotates relative to the valve seat 10, the protrusion on the valve core 20 will contact the locking pin 30, and as the valve core 20 continues to rotate, the protrusion will push the locking pin 30 to move along the axial second direction 302 under the action of the pushing portion, and when the protrusion is separated from the locking pin 30, the front end of the locking pin 30 will press against the end surface of the valve core 20, until the valve core 20 rotates to the target position, and the locking pin 30 locks the valve core 20 relative to the valve seat 10.

[0043] The utility model also provides a pipeline connector, such as Figure 3 As shown, the pipeline connector includes a male end and a female end that are butt-jointed and can rotate relative to each other. The male end and the female end are both connecting ends provided by any of the above-mentioned embodiments. A connecting portion is provided on the butt-jointed end surface of the valve seat 10 of the connecting end. The valve seat 10 is also provided with an arc-shaped through groove. A push groove is provided on the valve core 20. The connecting portion on the male end can extend from the arc-shaped through groove on the female end and be connected to the push groove of the valve core 20 in the female end. At the same time, the connecting portion on the female end can extend from the arc-shaped through groove on the male end and be connected to the push groove of the valve core 20 in the male end. When the valve seats 10 of the male end and the female end rotate relative to each other, the valve cores 20 of each other can be pushed to rotate, thereby realizing the opening and closing of the flow channel 13. The flow channel 13 on the valve seat 10 is eccentrically arranged relative to the axis of the valve seat 10, and a through hole can be arranged on the valve core 20, and the aperture of the through hole is preferably the same as the inner diameter of the flow channel 13. When the through hole and the flow channel 13 have an overlapping area, the conduction of the pipeline connector can be achieved, and when the through hole and the flow channel 13 completely overlap, the complete conduction of the pipeline connector can be achieved; when the through hole is completely offset from the flow channel 13, the closure of the pipeline connector can be achieved. The beneficial effects of the pipeline connector can be referred to the connection end provided in the above embodiment, and will not be repeated here.

[0044] The present utility model also provides a liquid cooling system, including a pipeline and the pipeline connector provided in the above embodiment, the pipeline is connected to the pipeline connector, and the liquid cooling system also includes a liquid pump, the liquid pump can transport liquid through the pipeline and the pipeline connector, so as to achieve a cooling effect on the heating element. The beneficial effects of the liquid cooling system can be referred to the above pipeline connector, which will not be repeated here.

[0045] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0046] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0047] The above is a detailed introduction to a connection end, a pipe connector and a liquid cooling system provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A connection end, comprising a valve seat (10), a valve core (20) and a locking pin (30), wherein the valve core (20) is rotatably arranged on the valve seat (10) to open and close a flow channel (13) of the valve seat (10), and the locking pin (30) can move in an axial direction along the rotation axis of the valve core (20), and can prevent the valve core (20) from rotating relative to the valve seat (10) when it moves to a first position along a first axial direction (301); when the locking pin (30) moves to a second position along a second axial direction (302) to leave the first position, it can rotate to enter a restricted position (101), and when the locking pin (30) is located at the restricted position (101), it can be prevented from entering the first position, characterized in that: The valve seat (10) is provided with a guiding portion (102) for guiding the locking pin (30) in the limiting position (101) to rotate to exit the limiting position (101) after the locking pin (30) moves a preset stroke along the axial second direction (302) from the second position; and the valve core (20) is provided with a pushing portion (201) for pushing the locking pin (30) to move the preset stroke along the axial second direction (302) from the second position when the valve core (20) rotates relative to the valve seat (10).

2. The connection terminal according to claim 1, characterized in that: The valve seat (10) is provided with a pin hole (14), the inner wall of the pin hole (14) is provided with a limiting guide cylinder (32), the interior of the pin hole (14) is also provided with a first elastic member (34), one end of the limiting guide cylinder (32) is provided with a limiting tooth (321) and a guiding inclined surface (323), the guiding portion (102) is the guiding inclined surface (323), and the side wall of the limiting guide cylinder (32) is provided with a guiding groove (322); the locking pin (30) comprises a tooth top block (33) and a pin (31), the outer periphery of the tooth top block (33) is provided with a limiting strip (331), and one end of the limiting strip (331) facing the pin (31) is provided with a top tooth (332), the two ends of the first elastic member (34) are respectively pressed against the pin hole (14) and the tooth top block (33), and the pin (31) faces the tooth top block (33). A pushing tooth (311) is provided at one end of the top block (33), and the pin (31) is used to push the tooth top block (33) to rotate through the pushing tooth (311) and the top tooth (332), so that the top tooth (332) is engaged with the limiting tooth (321). When the pin (31) moves from the second position along the axial second direction (302) to the preset stroke, the top tooth (332) is pushed to move out of the limiting tooth (321), and the tooth top block (33) is rotated under the guidance of the guide inclined surface (323), so that the limiting strip (331) corresponds to the guide groove (322). The tooth top block (33) moves toward the pin (31) under the elastic force of the first elastic member (34), so as to push the pin (31) to move along the axial first direction (301) to the first position.

3. The connection terminal according to claim 1, characterized in that: The valve seat (10) is provided with a pin hole (14), and the side of the pin hole (14) is provided with a slide groove (141) extending along the axial direction thereof; the side of the locking pin (30) is provided with a blocking rod (36) extending from the slide groove (141), and the blocking rod (36) can move relative to the slide groove (141) to drive the locking pin (30) to move axially in the pin hole (14); a second elastic member (37) is provided in the pin hole (14), and the second elastic member (37) is respectively in contact with one end of the locking pin (30) away from the valve core (20) and the pin hole (14); a first limiting groove (142) is provided on the side wall of the slide groove (141), and the side of the first limiting groove (142) away from the valve core (20) and / or the side of the blocking rod (36) away from the valve core (20) A guiding bevel (143) is provided, and the guiding bevel (143) on the first limiting groove (142) is the guiding portion (102). When the locking pin (30) moves along the second axial direction (302) until the blocking rod (36) corresponds to the first limiting groove (142), the blocking rod (36) is rotated to be engaged in the first limiting groove (142). When the valve core (20) rotates relative to the valve seat (10), the locking pin (30) can be pushed by the pushing portion (201) to move the preset stroke along the second axial direction (302), and the blocking rod (36) is rotated into the sliding groove (141) under the action of the guiding bevel (143), and the locking pin (30) is pressed against the valve core (20) under the elastic force of the second elastic member (37).

4. The connection terminal according to claim 1, characterized in that: The valve core (20) is provided with a locking hole (21), the opening of the locking hole (21) facing the locking pin (30) is a flared opening (211), the inner inclined surface of the flared opening (211) is the pushing portion (201), when the locking pin (30) is in the first position, the end thereof facing the valve core (20) passes through the flared opening (211) and extends into the locking hole (21), and when the locking pin (30) is in the second position, the end thereof facing the valve core (20) is located in the flared opening (211).

5. The connection terminal according to claim 4, characterized in that: The locking hole (21) comprises an opening locking hole (22) and a closing locking hole (23), and the opening locking hole (22) and the closing locking hole (23) are distributed along the circumferential direction of the valve core (20). When the valve core (20) rotates until the opening locking hole (22) or the closing locking hole (23) corresponds to the locking pin (30), one end of the locking pin (30) facing the valve core (20) can extend into the opening locking hole (22) or the closing locking hole (23).

6. The connection terminal according to claim 1, characterized in that: The locking pin (30) is provided with a pushing inclined surface at one end facing the valve core (20), and when the valve core (20) rotates relative to the valve seat (10), the pushing portion causes the locking pin (30) to move from the second position to the preset stroke along the axial second direction (302) via the pushing inclined surface.

7. The connection terminal according to claim 1, characterized in that: A protrusion is provided on one end of the valve core (20) facing the locking pin (30), and the pushing portion is provided on the protrusion.

8. The connection terminal according to claim 1, characterized in that: A pusher (35) extending out of the valve seat (10) is provided on the side of the locking pin (30).

9. A pipe connector, comprising a male end and a female end that are butt-jointed and relatively rotatable, characterized in that: The male end and the female end are both connecting ends according to any one of claims 1 to 8.

10. A liquid cooling system, characterized in that: The invention comprises a pipe and the pipe connector according to claim 9, wherein the pipe and the pipe connector are connected.

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