Fluid connector and connector locking system thereof

Abstract

The utility model discloses a fluid connector and a connector locking system thereof, and relates to the technical field of fluid connectors, and the connector locking system comprises a pressing sleeve, a locking device and a locking device, the sliding sleeve is arranged on the periphery of the pressing sleeve in a sliding and sleeving manner; the female end valve seat is fixedly arranged at the end of the pressing sleeve in a sleeving mode, and a first spring is arranged between the female end valve seat and the sliding sleeve; the ball locking sleeve is movably arranged in the second cavity, and a third spring is arranged between the end of the ball locking sleeve and the inner step face of the pressing sleeve. The lock bead and the pressing sleeve are provided with through mounting holes, the lock bead is movably arranged in the mounting hole, a third inclined surface is arranged in the sliding sleeve, the end part of the lock bead sleeve is provided with a clamping groove for bearing the lock bead, and in an initial state, the third inclined surface and the outer wall of the lock bead sleeve are in contact with the lock bead, so that the lock bead is in a balanced state, and the lock bead is not in the clamping groove; and the outer wall of the male end main body is provided with a male head boss so as to push the lock bead sleeve to move. According to the system, an operator can lock and unlock the connector in a more labor-saving manner.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid connectors, and more specifically, to a connector lock system. In addition, it also relates to a fluid connector comprising the connector lock system. Background Art

[0002] With the progress of society and the development of science and technology, the Internet of Everything has higher and higher requirements for the computing speed of various chips, resulting in higher and higher requirements for chip heat dissipation. At present, traditional air cooling can no longer meet the heat dissipation needs, and various new types of fluid heat sinks are about to become mainstream, and the fluid connector is the interface between the fluid source and various chip heat sinks. The fluid connector includes a male end and a female end. When the fluid source is disconnected, the male end and the female end are each sealed separately to prevent fluid leakage and spraying. When the male end and the female end are plugged in, their respective sealing structures will be opened, the fluid source and the heat sink will be connected, and the fluid will circulate to take away the heat, playing a role in efficient heat dissipation.

[0003] In the process of implementing the present invention, it is found that there are at least the following problems in the prior art:

[0004] At present, steel balls are usually used for locking when the male end and the female end 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 end and the female end sleeve. The force area between the components is small. The operator needs to use a large force to push the female end sleeve. That is, the process of inserting the male end into the female end is more laborious and the feel is not very friendly.

[0005] In summary, how to improve the operating feel of the connector lock mechanism is a problem that needs to be urgently solved by those skilled in the art. Utility Model Content

[0006] In view of this, an object of the present invention is to provide a connector lock system, which can enable operators to achieve connector locking and unlocking operations with less effort and improve the operating feel of the connector lock mechanism. Another object of the present invention is to provide a fluid connector including the connector lock system.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A connector lock system, comprising:

[0009] A compression sleeve, wherein a first cavity and a second cavity communicating with the first cavity are provided therein;

[0010] A sliding sleeve, wherein the sliding sleeve is arranged on the outer periphery of the pressing sleeve;

[0011] A female valve seat, the fixed sleeve of which is arranged at the end of the compression sleeve, and a first spring is arranged between the end of the female valve seat and the first boss of the sliding sleeve;

[0012] A bead lock sleeve is movably disposed in the second cavity, and a third spring is disposed between the end of the bead lock sleeve and the inner step surface of the pressing sleeve;

[0013] The locking bead is provided with a through mounting hole in the pressing sleeve, the locking bead is movably arranged in the mounting hole, a third inclined surface is provided in the sliding sleeve, and a slot for receiving the locking bead is provided at the end of the locking bead sleeve. In an 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;

[0014] 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, and 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.

[0015] 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.

[0016] 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;

[0017] 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.

[0018] In a possible design, an outer step surface is provided on the outer periphery of the pressing sleeve to limit the moving position of the first boss;

[0019] A limiting boss is provided on the outer periphery of the female end valve seat to limit the moving position of the end of the sliding sleeve.

[0020] In a possible design, a size of a side of the mounting hole facing the sliding sleeve is larger than a size of the locking bead, and a size of a side of the mounting hole facing away from the sliding sleeve is smaller than a size of the locking bead.

[0021] A fluid connector, comprising any one of the connector lock systems described above; 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 is arranged in cooperation with the opening and the first cavity to block the opening;

[0022] 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.

[0023] 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.

[0024] In a possible design, it also includes a male end valve core, which is arranged in the cavity of the male end body, and a male end spring is arranged between the end of the male end valve core and the end of the male end body.

[0025] 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.

[0026] 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.

[0027] Compared with the prior art, the fluid connector and connector lock system provided by the present invention have at least the following beneficial effects:

[0028] When the connector lock system provided by the utility model 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.

[0029] 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 locking bead sleeve, and the operator continues to use force to move the male end body toward the first cavity. During this process, the locking 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 locking bead on the female end, and the locking bead falls and engages with the slot; at this time, the locking 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 locking bead, and the narrower inner wall surface of the sliding sleeve squeezes the top of the locking bead so that the locking 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 locking bead, forming a locking between the male end and the female end.

[0030] 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 head boss of the male end body can also move backward toward the second cavity. When the male head boss retreats, the second inclined surface can lift the locking bead and make the locking bead move up and unlock; 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 as to completely remove the male end.

[0031] The connector lock system provided by the utility model utilizes components such as a locking bead sleeve, a locking bead, a sliding sleeve, and a spring to cooperate with an operator to apply external force, and the locking bead, the locking bead sleeve, and the sliding sleeve are in surface contact, so that the operator can achieve the locking and unlocking operation of the connector more effortlessly. In addition, the locking bead sleeve is in an unlocked state for a long time, which facilitates the insertion of the connector, making the operation convenient, the insertion feel softer, and the reliability higher.

[0032] In summary, the connector lock system provided by the present invention can enable operators to achieve connector locking and unlocking operations with less effort, thereby improving the operating feel of the connector lock mechanism.

[0033] 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

[0034] 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.

[0035] Figure 1 This is a schematic diagram of the structure of the connector lock system provided by the utility model when the valve is closed;

[0036] Figure 2 This is a structural diagram of the male end being inserted into the female end and the valve being opened;

[0037] Figure 3 This is a schematic diagram of the structure when the male end is just inserted into the female end;

[0038] Figure 4 It is a structural diagram when the male end is further inserted into the female end;

[0039] Figure 5 It is a structural diagram when the male end and the female end are inserted in place;

[0040] Figure 6 It is a structural schematic diagram of a bead lock sleeve;

[0041] Figure 7 This is a schematic diagram of the structure of the male end.

[0042] Figure 1-Figure 7 middle:

[0043] 1 is a lock ball, 2 is a stop pin, 3 is a sliding sleeve, 4 is a first sealing ring, 5 is a compression sleeve, 6 is a female valve seat, 7 is a second sealing ring, 8 is a third sealing ring, 9 is a lock ball sleeve, 10 is a third spring, 11 is a fourth sealing ring, 12 is a female valve core, 13 is a first spring, 14 is a second spring, 15 is a valve stem, 16 is a retaining ring, 17 is a spring retaining ring, 18 is a male spring, 19 is a fifth sealing ring, 20 is a male body, 21 is a male valve core, 2 2 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 head 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

[0044] 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.

[0045] The core of the utility model is to provide a connector lock system, which can make the operator realize the locking and unlocking operation of the connector more labor-saving, and improve the operation feel of the connector lock mechanism. Another core of the utility model is a fluid connector including the above connector lock system.

[0046] Please refer to Figures 1 to 7 .

[0047] This specific embodiment provides a connector lock system, including:

[0048] A pressing sleeve 5, in which a first cavity 23 and a second cavity 25 communicating with the first cavity 23 are provided;

[0049] A sliding sleeve 3, wherein the sliding sleeve is arranged on the outer periphery of the pressing sleeve 5;

[0050] The female valve seat 6 is fixedly sleeved at the end of the pressing sleeve 5, and a first spring 13 is arranged between the end of the female valve seat 6 and the first boss 34 of the sliding sleeve 3;

[0051] The 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;

[0052] The locking bead 1 and the pressing sleeve 5 are 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, and the end of the locking bead sleeve 9 is provided with a slot 28 for receiving the locking bead 1. In the 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;

[0053] 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.

[0054] It should be noted that a third inclined surface 26 is provided in the sliding sleeve 3, that is, the inner diameter of the third inclined surface 26 close to the first cavity 23 can be set smaller than the inner diameter 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 squeezing force of the sliding sleeve 3 on the lock ball 1.

[0055] In actual use, the shape, structure, size, shape, etc. of the pressing sleeve 5, the sliding sleeve 3, the female valve seat 6, the bead lock sleeve 9 and the bead lock 1 can be determined according to actual conditions and actual needs.

[0056] When the connector lock system provided by the utility model is used, in the initial state, the third inclined surface 26 of the sliding sleeve 3 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.

[0057] When the operator holds the male end and directly inserts the second cavity 25 of the female end, the male boss 31 of the male end body 20 contacts the inner wall of the lock bead sleeve 9, and the operator continues to use force to move the male end body 20 toward the first cavity 23. During this process, the lock bead 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 bead 1 on the female end, and 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 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.

[0058] 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 locking bead 1, the locking bead 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 locking bead 1 and move the locking bead 1 upward to unlock; at this time, the third spring 10 can push the locking bead sleeve 9 to move toward the second cavity 25; at this time, the locking bead 1 is disengaged from the slot 28, and the outer wall of the locking bead sleeve 9 is under the locking bead 1, so that the sliding sleeve 3 is not pressed tightly by the locking bead 1, and the sliding sleeve 3 is in an unlocked state, so as to completely remove the male end.

[0059] The connector lock system provided by the utility model utilizes components such as a lock bead sleeve 9, a lock bead 1, a sliding sleeve 3, and a spring (including a first spring 13 and a third spring 10) to cooperate with an operator to apply external force, and the lock bead 1 and the lock bead sleeve 9 and the sliding sleeve 3 are in surface contact, so that the operator can achieve the locking and unlocking operation of the connector more labor-saving. In addition, the lock bead sleeve 9 is in an unlocked state for a long time, which facilitates the insertion action of the connector, making the operation convenient, the insertion feel softer, and the reliability higher.

[0060] In summary, the connector lock system provided by the present invention can enable operators to achieve connector locking and unlocking operations with less effort, thereby improving the operating feel of the connector lock mechanism.

[0061] In a possible design, a stop pin 2 is provided in the pressing sleeve 5, and the stop pin 2 is used to limit the travel of the locking bead sleeve 9. When the connector is in a closed state, the third spring 10 pushes the locking bead sleeve 9 to move toward the second cavity 25 until the stop pin 2 blocks the movement of the locking bead sleeve 9. At this time, the locking bead sleeve 9 is located below the locking bead 1, the female end is in an unlocked state, and the male end (which includes the male end body 20 and the male end valve core 21 and other components) can be easily inserted into the female end (which includes the pressing sleeve 5 and the female end valve seat 6 and other components).

[0062] In a possible design, the bead lock sleeve 9 includes a first annular surface 41, a fourth inclined surface 29 and a second annular surface 40 connected in sequence, 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 a slot 28, the structure is as follows Figure 6 The bead lock sleeve 9 is arranged in this way, so that when the male head boss 31 of the male end body 20 is inserted into the bead lock sleeve 9, the two cooperate with each other, so that the bead lock sleeve 9 moves under the pushing action of the male end.

[0063] In addition, 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 be used 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 realizing the unlocking and locking actions of the lock bead 1.

[0064] In a possible design, an outer step surface 37 is provided on the outer periphery of the pressing sleeve 5 to limit the moving position of the first boss 34; a limiting boss 38 is provided on the outer periphery of the female valve seat 6 to limit the moving position of the end of the sliding sleeve 3. That is, the moving range (left and right moving range) of the sliding sleeve 3 is limited by the outer step surface 37 and the limiting boss 38 respectively.

[0065] In one possible design, 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, so as to prevent the locking bead 1 from falling out of the side of the mounting hole 39 facing away from the sliding sleeve 3.

[0066] In addition to the above connector lock system, the utility model further provides a fluid connector, which includes the connector lock system disclosed in the above 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 is matched with the opening 24 and the first cavity 23 to block the opening 24;

[0067] One end of the valve stem 15 is connected to the female valve seat 6, and the other end is inserted into the female valve core 12 across the first cavity 23 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. The structures of other parts of the fluid connector are referred to the prior art and will not be described in detail herein.

[0068] 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 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 is convenient for fixing and assembling the valve stem 15, the female valve seat 6 and the pressing sleeve 5, and can ensure the connection effect of the valve stem 15, the female valve seat 6 and the pressing sleeve 5.

[0069] 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.

[0070] 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 bead lock sleeve 9, and the operator continues to use force to move the male end toward the first cavity 23. During this process, the bead lock 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 32 passes over the lock bead 1 on the female end, and the lock bead 1 falls and engages with the slot 28; at this time, the lock bead 1 no longer supports the sleeve 3, and the sleeve 3 moves toward the second cavity 25 under the thrust of the first spring 13 until the third inclined surface 26 of the sleeve 3 passes over the lock bead 1, and the narrower inner wall surface of the 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 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.

[0071] 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 locking ball 1, and the locking ball 1 can retreat freely. At this time, the compressed second spring 14 can push the female end valve core 12 to move toward the second cavity 25. At the same time, the female end valve core 12 pushes the male end valve core 21 to move backward in the direction of the second cavity 25 (that is, it is necessary to ensure that the reset elastic force of the male end valve core 21 and the female end valve core 12 is greater than other forces). When the male head boss 31 of the male end body 20 retreats, the second inclined surface 33 of the male head boss 31 can lift the locking ball 1, so that the locking ball 1 moves up and is unlocked; at this time, the third spring 10 can push the locking ball sleeve 9 to move toward the second cavity 25; at this time, the locking ball 1 is separated from the slot 28, and the outer wall of the locking ball sleeve 9 is below 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 an unlocked state, so as to completely remove the male end.

[0072] 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.

[0073] In a possible design, it further includes a male end valve core 21 , 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 .

[0074] It should be noted that the male end valve core 21 is arranged in the cavity of the male end body 20, and one end of the male end valve core 21 is used to abut the female end valve core 12, and a male end spring 18 is arranged between the other end of the male end valve core 21 and the end of the male end body 20. A retaining spring 16 and a spring retaining ring 17 can also be arranged at the end of the male end body 20, and a male end spring 18 is arranged between the spring retaining ring 17 and the other end of the male end valve core 21. The structure of the male end is as follows: Figure 2 and Figure 7 shown.

[0075] In a 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, so that when unlocking, the female valve core 12 can push the male valve core 21 toward the second cavity 25 (to the left), so that the male end moves to the left. At this time, the second inclined surface 33 of the male body 20 will push the lock ball 1 upward, and the male end will no longer push the lock ball sleeve 9 to the right, so the third spring 10 will move the lock ball sleeve 9 to the left and reset.

[0076] 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.

[0077] In order to further illustrate the use of the fluid connector, three usage states are given below as examples.

[0078] 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 as follows Figure 3 As shown:

[0079] 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, the sliding sleeve 3 contacts the top of the lock bead 1, and 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.

[0080] In the second state, that is, when the male end is inserted into the female end, the structure is as follows Figure 4 As shown:

[0081] 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 the male end is continued to be inserted into the female end with force. 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.

[0082] The third state, that is, when the male end and the female end are inserted into place, the structure is as follows Figure 5 As shown:

[0083] 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, and the bottom of the lock bead 1 abuts against the second inclined surface 33. In addition, the sleeve 3 can move to the left until the third inclined surface 26 of the sleeve 3 passes over the lock bead 1, so that the inner wall surface of the sleeve 3 with a smaller inner diameter abuts against the lock bead 1, making the lock bead 1 unable to retreat. At this time, the inner wall surface of the sleeve 3 and the second inclined surface 33 of the male boss 31 are in contact with the lock bead 1, forming a locking of the male end and the female end.

[0084] In addition, when the male end and the female end need to be unlocked, the operator can hold the female end sleeve 3 with one hand and move the sleeve 3 to the right until the sleeve 3 leaves the lock bead 1, and the lock bead 1 can retreat freely. At this time, the spring 14 pushes the valve core 12. Since the reset spring force of the female end valve core 12 and the male end valve core 21 is greater than the elastic force of the first spring 13, the female end valve core 12 can push the male end valve core 21 away, so that the male end moves to the left. In the process of the male end body 20 moving to the left, the second inclined surface 33 of the male end boss 31 of the male end body 20 can lift the lock bead 1, so that the lock bead 1 moves up and unlocks. At this time, the third spring 10 pushes the lock bead sleeve 9 to move to the left until the stop pin 2 blocks the left movement of the lock bead sleeve 9; at this time, the lock bead 1 is separated from the slot 28, and the outer wall of the lock bead sleeve 9 is below the lock bead 1, so that the sleeve 3 is not pressed by the lock bead 1, and the sleeve 3 is in an unlocked state, so that the male end can be completely removed from the female end.

[0085] 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 utility model, among which the first and second and the third and the fourth and the fifth and the sixth are just to distinguish the different positions, and there is no order of precedence.

[0086] 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, and therefore cannot be understood as a limitation on the present invention.

[0087] Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referenced to each other. Any combination of all embodiments provided by the utility model is within the protection scope of this utility model and will not be described in detail here.

[0088] The fluid connector and connector lock system provided by the utility model are introduced in detail above. The principle and implementation method of the utility model are explained in this article using specific examples. The description of the above embodiments is only used to help understand the method and 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 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); 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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