Fluid connector and connector lock system thereof

Abstract

A fluid connector and a connector lock system thereof, relating to the technical field of fluid connectors. The connector lock system comprises: a pressing sleeve, wherein a first cavity and a second cavity are formed in the pressing sleeve; a slide bushing slidably sleeved on the outer periphery of the pressing sleeve; a female end valve seat fixedly sleeved at the end of the pressing sleeve, wherein a first spring is provided between the female end valve seat and the slide bushing; a lock ball sleeve movably provided in the second cavity, wherein a third spring is provided between the end of the lock ball sleeve and the inner step surface of the pressing sleeve; a lock ball, wherein a through mounting hole is formed in the pressing sleeve, the lock ball is movably provided in the mounting hole, a third inclined surface is provided in the slide bushing, a clamping groove configured to bear the lock ball is formed in the end of the lock ball sleeve, and in an initial state, the third inclined surface and the outer wall of the lock ball sleeve are both in contact with the lock ball, so that the lock ball is in a balanced state, and the lock ball is not in the clamping groove; and a male end body, wherein a male head boss is provided on the outer wall of the male end body so as to push the lock ball sleeve to move. The system enables an operator to realize locking and unlocking operations of the connector with less effort.

Description

A fluid connector and connector lock system thereof

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on December 15, 2023, with application number 202311734536.1 and invention name “A fluid connector and its connector lock system”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present invention relates to the technical field of fluid connectors, and more particularly to a connector lock system and a fluid connector comprising the connector lock system. Background Art

[0003] With the advancement of society and technology, the interconnectedness of everything is placing ever-increasing demands on the computing speeds of various chips, leading to ever-increasing heat dissipation requirements for these chips. Currently, traditional air cooling can no longer meet these requirements, and various new types of fluid heat sinks are poised to become mainstream. Fluid connectors are the interface between the fluid source and various chip heat sinks. Fluid connectors consist of a male and female end. When the fluid source is disconnected, the male and female ends are each individually sealed to prevent fluid leakage and spraying. When the male and female ends are plugged in, their respective seals are opened, connecting the fluid source and heat sink. The fluid circulates, removing heat and achieving efficient heat dissipation.

[0004] In the process of implementing the present invention, the inventors discovered that the prior art has at least the following problems:

[0005] Currently, steel balls are usually used to lock the male and female ends when they are plugged together. However, the common steel ball lock mechanism usually uses a steel ball to push the female end sleeve to move. There is point contact between the steel ball and the male and female end sleeves. The force area between the components is small, and the operator needs to use a large force to push the female end sleeve. In other words, the process of inserting the male end into the female end is more laborious and does not feel very user-friendly.

[0006] In summary, how to improve the operating feel of the connector lock mechanism is an urgent problem to be solved by those skilled in the art.

[0007] Summary of the Invention

[0008] In view of this, an object of the present invention is to provide a connector lock system that allows operators to lock and unlock connectors with less effort and improves the operating feel of the connector lock mechanism. Another object of the present invention is to provide a fluid connector including the above connector lock system.

[0009] In order to achieve the above object, the present invention provides the following technical solutions:

[0010] A connector lock system comprising:

[0011] A compression sleeve, wherein a first cavity and a second cavity communicating with the first cavity are provided;

[0012] A sliding sleeve, wherein the sliding sleeve is arranged on the outer periphery of the pressing sleeve;

[0013] A female valve seat, the fixed sleeve of which is arranged at the end of the compression sleeve, and a first spring is provided between the end of the female valve seat and the first boss of the sliding sleeve;

[0014] A bead lock sleeve is movably disposed in the second cavity, and a third spring is provided between the end of the bead lock sleeve and the inner step surface of the pressing sleeve;

[0015] The locking bead is provided with a through mounting hole, the locking bead is movably arranged in the mounting hole, the sliding sleeve is provided with a third inclined surface, and the end of the locking bead sleeve is provided with a slot for receiving the locking bead. In the initial state, the third inclined surface and the outer wall of the locking bead sleeve are in contact with the locking bead, so that the locking bead is in a balanced state and the locking bead is not in the slot.

[0016] The male end body has a male boss on its outer wall, and the male boss includes a first inclined surface, a transition surface and a second inclined surface connected in sequence. The first inclined surface is used to cooperate with the inner wall of the bead lock sleeve to push the bead lock sleeve to move.

[0017] In a possible design, a stop pin is provided in the pressing sleeve, and the stop pin is used to limit the stroke of the ball locking sleeve.

[0018] In a possible design, the bead lock sleeve includes a first annular surface, a fourth inclined surface, and a second annular surface connected in sequence, and the diameter of the first annular surface is smaller than the diameter of the second annular surface;

[0019] The first annular surface is provided with a spring hole for accommodating the third spring, and the second annular surface is provided with the clamping groove.

[0020] In a possible design, an outer step surface is provided on the outer periphery of the pressing sleeve to limit the movement position of the first boss;

[0021] A limiting boss is provided on the outer periphery of the female end valve seat to limit the moving position of the end portion of the sliding sleeve.

[0022] In a possible design, the size of the mounting hole on a side facing the sliding sleeve is larger than the size of the locking bead, and the size of the mounting hole on a side facing away from the sliding sleeve is smaller than the size of the locking bead.

[0023] A fluid connector comprising the connector lock system described in any one of the above items; and a female valve core and a valve stem, wherein an opening is provided between the first cavity and the second cavity, a flow channel is provided in the female valve core, and an outer wall of the female valve core cooperates with the opening and the first cavity to seal the opening;

[0024] One end of the valve stem is connected to the female valve seat, and the other end passes through the first cavity and is inserted into the female valve core to block the flow channel. A drainage channel is provided in the valve stem, and a second spring is provided between the end of the female valve core and the second boss of the valve stem.

[0025] In one possible design, a first sealing ring is provided on the inner wall of the opening, a second sealing ring is provided at the connection between the female valve seat and the pressing sleeve, a third sealing ring is provided at the end of the female valve seat, and a fourth sealing ring is provided at the end of the valve stem for sealing the female valve core.

[0026] In a possible design, it further includes a male end valve core, which is arranged in the cavity of the male end body, and a male end spring is provided between the end of the male end valve core and the end of the male end body.

[0027] In a possible design, the sum of the elastic forces of the male end spring and the second spring is greater than the sum of the elastic forces of the first spring and the third spring.

[0028] In a possible design, a fifth sealing ring is provided at the end of the male end body, and a sixth sealing ring is provided at the end of the male end valve core.

[0029] Compared with the prior art, the fluid connector and connector lock system provided by the present invention have at least the following beneficial effects:

[0030] When the connector lock system provided by the present invention is used, in the initial state, the third inclined surface of the sliding sleeve and the outer wall of the locking bead sleeve are in contact with the locking bead, so that the locking bead is in a balanced state and the locking bead is not in the slot.

[0031] When the operator holds the male end and directly inserts it into the second cavity of the female end, the male boss of the male end body contacts the inner wall of the lock bead sleeve, and the operator continues to use force to move the male end body toward the first cavity. During this process, the lock bead sleeve moves toward the first cavity under the action of the first inclined surface of the male boss until the transition surface of the male boss passes over the lock bead on the female end, and the lock bead falls and engages with the slot; at this time, the lock bead no longer supports the sliding sleeve, and the sliding sleeve moves toward the second cavity under the thrust of the first spring until the third inclined surface of the sliding sleeve passes over the lock bead, and the narrower inner wall surface of the sliding sleeve squeezes the top of the lock bead so that the lock bead cannot retreat. At this time, the inner wall surface of the sliding sleeve and the second inclined surface of the male boss are in contact with the lock bead, forming a lock between the male end and the female end.

[0032] When the operator holds the sliding sleeve with one hand and moves the sliding sleeve toward the first cavity until the sliding sleeve leaves the locking bead, the locking bead can retreat freely, and the male boss of the male end body can also move backward toward the second cavity. When the male boss retreats, the second inclined surface can lift the locking bead, so that the locking bead moves up and is unlocked; at this time, the third spring can push the locking bead sleeve to move toward the second cavity; at this time, the locking bead is out of the slot, and the outer wall of the locking bead sleeve is under the locking bead, so that the sliding sleeve is not tightened by the locking bead, and the sliding sleeve is in an unlocked state, so that the male end can be completely removed.

[0033] The connector lock system provided by the present invention utilizes components such as a locking bead sleeve, a locking bead, a sliding sleeve, and a spring to cooperate with the operator to apply external force. The locking bead, the locking bead sleeve, and the sliding sleeve provide surface contact, allowing the operator to lock and unlock the connector with less effort. Furthermore, the locking bead sleeve remains unlocked for a long time, facilitating connector insertion, resulting in convenient operation, a smoother insertion feel, and increased reliability.

[0034] In summary, the connector lock system provided by the present invention enables operators to achieve connector locking and unlocking operations with less effort, thereby improving the operational feel of the connector lock mechanism.

[0035] The fluid connector provided by the present invention includes the above-mentioned connector lock system, and therefore, it also has the same beneficial effects as the connector lock system. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0037] FIG1 is a schematic structural diagram of a connector lock system provided by the present invention when the valve is closed;

[0038] Figure 2 is a schematic diagram of the structure when the male end is inserted into the female end and the valve is open;

[0039] Figure 3 is a schematic diagram of the structure when the male end is just inserted into the female end;

[0040] Figure 4 is a schematic diagram of the structure when the male end is further inserted into the female end;

[0041] Figure 5 is a schematic diagram of the structure when the male end and the female end are inserted in place;

[0042] Figure 6 is a schematic structural diagram of a bead lock sleeve;

[0043] FIG7 is a schematic structural diagram of the male end.

[0044] In Figures 1 to 7:

[0045] 1 is the lock ball, 2 is the stop pin, 3 is the sliding sleeve, 4 is the first sealing ring, 5 is the pressing sleeve, 6 is the female valve seat, 7 is the second sealing ring, 8 is the third sealing ring, 9 is the lock ball sleeve, 10 is the third spring, 11 is the fourth sealing ring, 12 is the female valve core, 13 is the first spring, 14 is the second spring, 15 is the valve stem, 16 is the retaining ring, 17 is the spring retaining ring, 18 is the male spring, 19 is the fifth sealing ring, 20 is the male body, 21 is the male valve core, 22 is the sixth sealing ring, 23 is the first cavity, 24 is the opening, 25 is the second cavity, 26 is the third inclined surface, 27 is the spring hole, 28 is the card slot, 29 is the fourth inclined surface, 30 is the first inclined surface, 31 is the male boss, 32 is the transition surface, 33 is the second inclined surface, 34 is the first boss, 35 is the second boss, 36 is the inner step surface, 37 is the outer step surface, 38 is the limit boss, 39 is the mounting hole, 40 is the second annular surface, and 41 is the first annular surface. DETAILED DESCRIPTION

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0047] The core of the present invention is to provide a connector lock system that allows operators to lock and unlock connectors with less effort, improving the operating feel of the connector lock mechanism. Another core of the present invention is a fluid connector that includes the connector lock system.

[0048] Please refer to Figures 1 to 7.

[0049] This specific embodiment provides a connector lock system, including:

[0050] The pressing sleeve 5 has a first cavity 23 and a second cavity 25 communicating with the first cavity 23;

[0051] The sliding sleeve 3 is arranged on the outer periphery of the pressing sleeve 5;

[0052] The female valve seat 6 is fixedly sleeved at the end of the pressing sleeve 5 , and a first spring 13 is provided between the end of the female valve seat 6 and the first boss 34 of the sliding sleeve 3 ;

[0053] The bead lock sleeve 9 is movably disposed in the second cavity 25, and a third spring 10 is provided between the end of the bead lock sleeve 9 and the inner step surface 36 of the pressing sleeve 5;

[0054] The lock bead 1 and the pressing sleeve 5 are provided with a through mounting hole 39, the lock bead 1 is movably arranged in the mounting hole 39, the sliding sleeve 3 is provided with a third inclined surface 26, and the end of the lock bead sleeve 9 is provided with a slot 28 for receiving the lock bead 1. In the initial state, the third inclined surface 26 and the outer wall of the lock bead sleeve 9 are in contact with the lock bead 1, so that the lock bead 1 is in a balanced state and the lock bead 1 is not in the slot 28;

[0055] The male end body 20 has a male boss 31 on its outer wall. The male boss 31 includes a first inclined surface 30, a transition surface 32 and a second inclined surface 33 connected in sequence. The first inclined surface 30 is used to cooperate with the inner wall of the bead lock sleeve 9 to push the bead lock sleeve 9 to move.

[0056] It should be noted that a third inclined surface 26 is provided in the sliding sleeve 3, that is, the inner diameter of the side of the third inclined surface 26 close to the first cavity 23 can be set smaller than the inner diameter of the side of the third inclined surface 26 close to the second cavity 25. Therefore, when the sliding sleeve 3 is moved to the right, the distance between the inner wall surface of the sliding sleeve 3 and the lock ball 1 can be made larger. When the sliding sleeve 3 is moved to the left, the sliding sleeve 3 and the lock ball 1 will be in closer contact, thereby increasing the extrusion force of the sliding sleeve 3 on the lock ball 1.

[0057] During actual use, the shape, structure, size, shape, etc. of the pressing sleeve 5, the sliding sleeve 3, the female valve seat 6, the lock ball sleeve 9 and the lock ball 1 can be determined according to actual conditions and actual needs.

[0058] When the connector lock system provided by the present invention is used, in the initial state, the third inclined surface 26 of the sliding sleeve 3 and the outer wall of the lock bead sleeve 9 are in contact with the lock bead 1, so that the lock bead 1 is in a balanced state and the lock bead 1 is not in the slot 28.

[0059] When the operator holds the male end and directly inserts the second cavity 25 of the female end with his hand, the male boss 31 of the male end body 20 contacts the inner wall of the lock ball sleeve 9, and the operator continues to force the male end body 20 to move toward the first cavity 23. During this process, the lock ball sleeve 9 moves toward the first cavity 23 under the action of the first inclined surface 30 of the male boss 31 until the transition surface 32 of the male boss 31 passes over the lock ball 1 on the female end, and the lock ball 1 falls and engages with the slot 28; at this time, the lock ball 1 no longer supports the sliding sleeve 3, and the sliding sleeve 3 moves toward the second cavity 25 under the thrust of the first spring 13 until the third inclined surface 26 of the sliding sleeve 3 passes over the lock ball 1, and the narrower inner wall surface of the sliding sleeve 3 squeezes the top of the lock ball 1 so that the lock ball 1 cannot retreat. At this time, the inner wall surface of the sliding sleeve 3 and the second inclined surface 33 of the male boss 31 are in contact with the lock ball 1, forming a locking between the male end and the female end.

[0060] When the operator holds the sliding sleeve 3 with one hand and moves the sliding sleeve 3 toward the first cavity 23 until the sliding sleeve 3 leaves the lock ball 1, the lock ball 1 can retreat freely, and the male head boss 31 of the male end body 20 can also move backward toward the second cavity 25. When the male head boss 31 retreats, the second inclined surface 33 can lift the lock ball 1, so that the lock ball 1 moves up and is unlocked; at this time, the third spring 10 can push the lock ball sleeve 9 to move toward the second cavity 25; at this time, the lock ball 1 is out of the slot 28, and the outer wall of the lock ball sleeve 9 is under the lock ball 1, so that the sliding sleeve 3 is not tightened by the lock ball 1, and the sliding sleeve 3 is in an unlocked state, so that the male end can be completely removed.

[0061] The connector lock system provided by the present invention utilizes components such as a locking bead sleeve 9, a locking bead 1, a sliding sleeve 3, and springs (including a first spring 13 and a third spring 10) to cooperate with the operator to apply external force. The locking bead 1, the locking bead sleeve 9, and the sliding sleeve 3 provide surface contact, allowing the operator to lock and unlock the connector with less effort. Furthermore, by keeping the locking bead sleeve 9 in the unlocked state for a long time, connector insertion is facilitated, resulting in easier operation, a smoother insertion feel, and greater reliability.

[0062] In summary, the connector lock system provided by the present invention enables operators to achieve connector locking and unlocking operations with less effort, thereby improving the operational feel of the connector lock mechanism.

[0063] In one possible design, a stop pin 2 is provided within the compression sleeve 5 to limit the travel of the ball lock sleeve 9. When the connector is closed, the third spring 10 pushes the ball lock sleeve 9 toward the second cavity 25 until the stop pin 2 blocks the movement of the ball lock sleeve 9. At this point, the ball lock sleeve 9 is located below the ball lock 1, the female end is unlocked, and the male end (which includes components such as the male end body 20 and the male end valve core 21) can be easily inserted into the female end (which includes components such as the compression sleeve 5 and the female end valve seat 6).

[0064] In one possible design, the bead lock sleeve 9 includes a first annular surface 41, a fourth inclined surface 29, and a second annular surface 40, which are sequentially connected. The diameter of the first annular surface 41 is smaller than that of the second annular surface 40. The first annular surface 41 is provided with a spring hole 27 for accommodating the third spring 10, and the second annular surface 40 is provided with a retaining groove 28. The structure is shown in Figure 6. This configuration of the bead lock sleeve 9 allows the male boss 31 of the male end body 20 to fit into the bead lock sleeve 9 when inserted into the bead lock sleeve 9. The two cooperate, and the push of the male end causes the bead lock sleeve 9 to move.

[0065] Furthermore, the size of the slot 28 should be slightly smaller than the diameter of the lock bead 1 so that the lock bead 1 will be caught by the slot 28 when it falls to the male end, preventing the lock bead 1 from falling completely and facilitating the subsequent upward movement and reset of the lock bead 1. The lock bead sleeve 9 can serve as the lock core of the lock bead 1, and the third spring 10 provides power to push the lock bead sleeve 9 to move, thereby achieving the unlocking and locking actions of the lock bead 1.

[0066] In one possible design, the outer periphery of the compression sleeve 5 is provided with an outer stepped surface 37 to limit the movement of the first boss 34; the outer periphery of the female valve seat 6 is provided with a limiting boss 38 to limit the movement of the end of the sliding sleeve 3. In other words, the movement range (left and right movement range) of the sliding sleeve 3 is limited by the outer stepped surface 37 and the limiting boss 38 respectively.

[0067] In one possible design, the size of the side of the mounting hole 39 facing the sleeve 3 is larger than the size of the lock bead 1, and the size of the side of the mounting hole 39 facing away from the sleeve 3 is smaller than the size of the lock bead 1, so as to prevent the lock bead 1 from falling out of the side of the mounting hole 39 facing away from the sleeve 3.

[0068] In addition to the above-mentioned connector lock system, the present invention further provides a fluid connector, which includes the connector lock system disclosed in the above-mentioned embodiment; and a female valve core 12 and a valve stem 15, wherein an opening 24 is provided between the first cavity 23 and the second cavity 25, a flow channel is provided in the female valve core 12, and an outer wall of the female valve core 12 cooperates with the opening 24 and the first cavity 23 to block the opening 24;

[0069] One end of the valve stem 15 is connected to the female valve seat 6, and the other end extends beyond the first cavity 23 and into the female valve core 12 to block the flow path. A drainage channel is provided within the valve stem 15, and a second spring 14 is provided between the end of the female valve core 12 and the second boss 35 of the valve stem 15. The structures of the other components of this fluid connector are described in detail in the prior art and will not be further elaborated herein.

[0070] It should be noted that the second boss 35 at the end of the valve stem 15 can be sandwiched between the pressing sleeve 5 and the female valve seat 6. For example, the female valve seat 6 and the pressing sleeve 5 can be connected by pressure riveting, and the second boss 35 of the valve stem 15 can be sandwiched between the pressing sleeve 5 and the female valve seat 6. This arrangement not only facilitates the fixed assembly of the valve stem 15, the female valve seat 6 and the pressing sleeve 5, but also ensures the connection effect of the valve stem 15, the female valve seat 6 and the pressing sleeve 5.

[0071] It should also be noted that, in the initial state, the outer wall of the female valve core 12 blocks the opening 24 of the pressing sleeve 5 and the connection between the opening 24 and the first cavity 23, and the valve stem 15 can block the flow channel of the female valve core 12, that is, the female valve core 12, the pressing sleeve 5 and the valve stem 15 can form a sealing structure between the first cavity 23 and the opening 24, so that the flow channel is closed.

[0072] When the operator holds the male end and directly inserts it into the second cavity 25 of the female end, the first inclined surface 30 of the male boss 31 of the male end body 20 contacts the inner wall of the lock ball sleeve 9, and the operator continues to use force to move the male end toward the first cavity 23. During this process, the lock ball sleeve 9 moves toward the first cavity 23 under the action of the first inclined surface 30, and the female end valve core 12 moves toward the first cavity 23 under the action of the male end valve core 21; until the transition surface of the male boss 31 is 32 passes over the lock bead 1 on the female end, and the lock bead 1 falls and engages with the card slot 28; at this time, the lock bead 1 no longer supports the sliding sleeve 3, and the sliding sleeve 3 moves toward the second cavity 25 under the thrust of the first spring 13 until the third inclined surface 26 of the sliding sleeve 3 passes over the lock bead 1, and the narrower inner wall surface of the sliding sleeve 3 squeezes the top of the lock bead 1 so that the lock bead 1 cannot retreat. At this time, the inner wall surface of the sliding sleeve 3 and the second inclined surface 33 of the male boss 31 are in contact with the lock bead 1, forming a locking between the male end and the female end.

[0073] When the locking ball 1 is released, the outer wall of the locking ball sleeve 9 is under the locking ball 1, so that the sliding sleeve 3 is not pressed tightly by the locking ball 1, and the sliding sleeve 3 is in the unlocked state, so that the male end 25 can be completely removed.

[0074] In one possible design, a first sealing ring 4 is provided on the inner wall of the opening 24, a second sealing ring 7 is provided at the connection between the female valve seat 6 and the pressing sleeve 5, a third sealing ring 8 is provided at the end of the female valve seat 6, and a fourth sealing ring 11 is provided at the end of the valve stem 15 for sealing the female valve core 12, so as to effectively improve the sealing effect between the various components of the female end.

[0075] In a possible design, a male end valve core 21 is further included, which is disposed in the cavity of the male end body 20 , and a male end spring 18 is disposed between the end of the male end valve core 21 and the end of the male end body 20 .

[0076] It should be noted that the male valve core 21 is disposed within the cavity of the male body 20, and one end of the male valve core 21 is used to abut the female valve core 12, with a male spring 18 disposed between the other end of the male valve core 21 and the end of the male body 20. A retaining spring 16 and a spring retaining ring 17 may also be disposed at the end of the male body 20, with a male spring 18 disposed between the spring retaining ring 17 and the other end of the male valve core 21. The structure of the male end is shown in Figures 2 and 7.

[0077] In one possible design, the sum of the elastic forces of the male spring 18 and the second spring 14 is greater than the sum of the elastic forces of the first spring 13 and the third spring 10. That is, the elastic forces of the male spring 18 and the second spring 14 are greater than the elastic forces of the first spring 13 and the third spring 10. Consequently, when unlocking, the female valve core 12 can push the male valve core 21 toward the second cavity 25 (to the left), causing the male end to move leftward. At this time, the second inclined surface 33 of the male body 20 pushes the lock ball 1 upward, and the male end no longer pushes the lock ball sleeve 9 to the right. Therefore, the third spring 10 causes the lock ball sleeve 9 to move leftward and return to its original position.

[0078] In a possible design, a fifth sealing ring 19 is provided at the end of the male end body 20, and a sixth sealing ring 22 is provided at the end of the male end valve core 21, so as to improve the sealing effect of each component in the male end.

[0079] In order to further illustrate the usage of the fluid connector, three usage states are given below as examples.

[0080] In the first state, that is, before the male end is inserted into the female end and the female end valve core 12 is opened, the structure is shown in FIG3 :

[0081] Under normal conditions, when the valve is closed, the outer wall of the lock bead sleeve 9 just pulls up the bottom of the lock bead 1, the lock bead 1 is not in the slot 28, and the sliding sleeve 3 contacts the top of the lock bead 1. At this time, the extrusion force of the lock bead 1 on the sliding sleeve 3 is balanced by the elastic force of the first spring 13, and the third spring 10 will push the lock bead sleeve 9 to move toward the second cavity 25 until the stop pin 2 blocks the left movement of the lock bead sleeve 9. At this time, the lock bead sleeve 9 is also in a balanced state, and the lock bead sleeve 9 is below the lock bead 1. The connector is in an unlocked state, and the male end can be easily inserted into the female end.

[0082] The second state, that is, when the male end is inserted into the female end, the structure is shown in Figure 4:

[0083] When the operator holds the male end and directly inserts it into the female end, the first inclined surface 30 of the male boss 31 of the male end body 20 will contact the first annular surface 41 and the fourth inclined surface 29 on the lock bead sleeve 9, and continues to force the male end into the female end. The lock bead sleeve 9 moves to the right under the action of the first inclined surface 30 of the male boss 31; until the transition surface 32 of the male boss 31 passes over the lock bead 1 on the female end, the lock bead 1 falls and engages with the slot 28; at this time, the lock bead 1 no longer supports the sliding sleeve 3, and the sliding sleeve 3 can move to the left under the elastic force of the first spring 13.

[0084] The third state, when the male and female ends are inserted into place, is as shown in Figure 5:

[0085] As the male end continues to move to the right (i.e., toward the first cavity 23), the lock bead 1 passes through the first inclined surface 30, the transition surface 32, and the second inclined surface 33 in sequence, and then reaches the second inclined surface 33 of the male end body 20. At this time, the bottom of the lock bead 1 abuts against the second inclined surface 33. In addition, the sliding sleeve 3 can move leftward until the third inclined surface 26 of the sliding sleeve 3 passes over the lock bead 1, so that the inner wall surface of the sliding sleeve 3 with a smaller inner diameter abuts against the lock bead 1, making it impossible for the lock bead 1 to retreat. At this time, the inner wall surface of the sliding sleeve 3 and the second inclined surface 33 of the male boss 31 are both in contact with the lock bead 1, forming a locking state between the male end and the female end.

[0086] Furthermore, when unlocking the male and female ends is required, the operator can hold the female sleeve 3 with one hand and move it to the right until it leaves the lock bead 1, allowing the lock bead 1 to retract freely. At this point, the spring 14 pushes the valve core 12. Because the return spring forces of the female and male valve cores 12 and 21 are greater than the elastic force of the first spring 13, the female valve core 12 can push the male valve core 21 away, causing the male end to move to the left. During the leftward movement of the male body 20, the second inclined surface 33 of the male boss 31 of the male body 20 can lift the lock bead 1, causing it to move upward and unlock. At this point, the third spring 10 pushes the lock bead sleeve 9 to move leftward until the stop pin 2 blocks the leftward movement of the lock bead sleeve 9. At this point, the lock bead 1 is disengaged from the slot 28, and the outer wall of the lock bead sleeve 9 is below the lock bead 1, preventing the sleeve 3 from being pressed against by the lock bead 1. The sleeve 3 is now unlocked, facilitating the complete removal of the male end from the female end.

[0087] It should be noted that the first cavity 23 and the second cavity 25, the first spring 13 and the second spring 14 and the third spring 10, the first boss 34 and the second boss 35, the first sealing ring 4 and the second sealing ring 7 and the third sealing ring 8 and the fourth sealing ring 11 and the fifth sealing ring 19 and the sixth sealing ring 22, the first annular surface 41 and the second annular surface 40, the first inclined surface 30 and the second inclined surface 33 and the third inclined surface 26 and the fourth inclined surface 29 mentioned in the present invention, among which the first and second and the third and the fourth and the fifth and the sixth are only for distinguishing the different positions and there is no order of precedence.

[0088] In addition, it should be noted that the directions or positional relationships indicated by "left and right", "inside and outside", etc. in the present invention are based on the directions or positional relationships shown in the accompanying drawings, and are only for the purpose of simplifying the description and facilitating understanding, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be understood as a limitation on the present invention.

[0089] 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. Any combination of all the embodiments provided by the present invention is within the scope of protection of this invention and will not be described in detail here.

[0090] The fluid connector and connector lock system provided by the present invention have been described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is intended only to facilitate understanding of the method and core concepts of the present invention. It should be noted that those skilled in the art will be able to make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the claims of the present invention.

Claims

1. A connector lock system, characterized in that: include: A pressing sleeve (5) having a first cavity (23) and a second cavity (25) communicating with the first cavity (23) provided therein; A sliding sleeve (3), wherein the sliding sleeve is arranged on the outer periphery of the pressing sleeve (5); A female valve seat (6) is fixedly sleeved at the end of the compression sleeve (5), and a first spring (13) is provided between the end of the female valve seat (6) and the first boss (34) of the sliding sleeve (3); A bead lock sleeve (9) is movably disposed in the second cavity (25), and a third spring (10) is disposed between the end of the bead lock sleeve (9) and the inner step surface (36) of the pressing sleeve (5); A locking bead (1), the pressing sleeve (5) is provided with a through mounting hole (39), the locking bead (1) is movably arranged in the mounting hole (39), the sliding sleeve (3) is provided with a third inclined surface (26), the end of the locking bead sleeve (9) is provided with a slot (28) for receiving the locking bead (1), in an initial state, the third inclined surface (26) and the outer wall of the locking bead sleeve (9) are in contact with the locking bead (1), so that the locking bead (1) is in a balanced state, and the locking bead (1) is not in the slot (28); The male end body (20) has a male boss (31) on its outer wall, and the male boss (31) includes a first inclined surface (30), a transition surface (32) and a second inclined surface (33) connected in sequence, and the first inclined surface (30) is used to cooperate with the inner wall of the bead lock sleeve (9) to push the bead lock sleeve (9) to move.

2. The connector lock system according to claim 1, characterized in that: A stop pin (2) is provided inside the pressing sleeve (5), and the stop pin (2) is used to limit the travel of the ball locking sleeve (9).

3. The connector lock system according to claim 1, characterized in that: The bead lock sleeve (9) comprises a first annular surface (41), a fourth inclined surface (29) and a second annular surface (40) which are connected in sequence, and the diameter of the first annular surface (41) is smaller than the diameter of the second annular surface (40); The first annular surface (41) is provided with a spring hole (27) for accommodating the third spring (10), and the second annular surface (40) is provided with the clamping groove (28).

4. The connector lock system according to any one of claims 1 to 3, characterized in that: The outer periphery of the pressing sleeve (5) is provided with an outer step surface (37) to limit the moving position of the first boss (34); A limiting boss (38) is provided on the outer periphery of the female end valve seat (6) to limit the moving position of the end of the sliding sleeve (3).

5. The connector lock system according to any one of claims 1 to 3, characterized in that: The size of the side of the mounting hole (39) facing the sliding sleeve (3) is larger than the size of the locking bead (1), and the size of the side of the mounting hole (39) facing away from the sliding sleeve (3) is smaller than the size of the locking bead (1).

6. A fluid connector, characterized in that: A connector lock system comprising the connector lock system according to any one of claims 1 to 5; and A female end valve core (12) and a valve stem (15), wherein an opening (24) is provided between the first cavity (23) and the second cavity (25), a flow channel is provided in the female end valve core (12), and an outer wall of the female end valve core (12) is arranged in cooperation with the opening (24) and the first cavity (23) to block the opening (24); One end of the valve stem (15) is connected to the female valve seat (6), and the other end passes through the first cavity (23) and is inserted into the female valve core (12) to block the flow channel. A drainage channel is provided in the valve stem (15), and a second spring (14) is provided between the end of the female valve core (12) and the second boss (35) of the valve stem (15).

7. The fluid connector according to claim 6, characterized in that: The inner wall of the opening (24) is provided with a first sealing ring (4), the connection between the female valve seat (6) and the pressing sleeve (5) is provided with a second sealing ring (7), the end of the female valve seat (6) is provided with a third sealing ring (8), and the end of the valve stem (15) for sealing the female valve core (12) is provided with a fourth sealing ring (11).

8. The fluid connector according to claim 6, characterized in that: It also comprises a male end valve core (21), which is arranged in the cavity of the male end body (20), and a male end spring (18) is arranged between the end of the male end valve core (21) and the end of the male end body (20).

9. The fluid connector according to claim 8, characterized in that: The sum of the elastic forces of the male end spring (18) and the second spring (14) is greater than the sum of the elastic forces of the first spring (13) and the third spring (10).

10. The fluid connector according to claim 8, characterized in that: A fifth sealing ring (19) is provided at the end of the male end body (20), and a sixth sealing ring (22) is provided at the end of the male end valve core (21).

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