Quick connector structure for conveying fluid

Abstract

The utility model discloses a quick connector structure for conveying fluid. The quick connector structure is simple and convenient to operate, labor-saving and the like. Comprising a male joint, a female joint and a sleeve. The male connector defines a cavity, a combination end located at the two end areas of the cavity and a pivoting end away from the combination end. The female connector defines an auxiliary cavity, auxiliary combination ends located at the two end areas of the auxiliary cavity and auxiliary pivoting ends away from the auxiliary combination ends. The female joint is combined with a sleeve capable of moving in the axial direction, and a control body, a first elastic device and a second elastic device are arranged between the sleeve and the female joint; when the male joint is connected with the female joint, the control body is forced to push and press the first elastic device to complete the connection operation; and / or after the operation sleeve moves to push and press the second elastic device, the connection operation is released, and the situation that in the prior art, connection operation and / or connection release operation are / is strenuous is improved.

Description

Technical Field

[0001] This utility model relates to a quick connector structure for conveying fluid; in particular, it refers to a combination of a male connector, a female connector and a sleeve, and a technology that achieves labor-saving operation by setting a control body, a first elastic element and a second elastic element in the female connector. Background Technology

[0002] Liquid cooling systems and water circulation systems used in motors and electronic devices (e.g., computers or servers) to achieve heat dissipation mechanisms (cooling) fluid pipelines are well-known in the industry. In practice, these fluid pipelines are connected using fluid couplings or quick connectors; for example, Chinese Patent Publication No. CN111946921B, "Concave Element and Fluid Coupling," provides a typical embodiment.

[0003] The embodiment includes a combined structure of a convex element and a concave element; the concave element has an oblique channel and a locking member that moves within the oblique channel. The concave element is combined with an operating ring; a return plunger and an elastic member are disposed between the concave element and the operating ring. When an operator inserts the convex element into the concave element along its axial direction, the inclined surface of the flange ring of the convex element pushes the locking member along the oblique channel, thereby pressing the return plunger and the elastic member, achieving the function of the convex element connecting to the concave element. Therefore, the force that actually pushes the locking member to move and compresses the elastic member is the oblique component (or simply the secondary component) of the operating force (i.e., the axial or horizontal force of the convex element inserting into the concave element).

[0004] It is understood that personnel can use the secondary force of the oblique force generated by pushing the operating ring to force the locking member into the oblique channel, and push the return plunger and elastic member to release the connection between the convex and concave elements.

[0005] One issue concerning the structural and operational applications of the aforementioned fluid (quick) connector is that the operating ring in the above embodiments does not directly contact the elastic member or incorporate a spring to achieve a clamping (combination) effect; therefore, the operating ring or its related components are prone to wobbling during operation. Furthermore, as those skilled in the art will recognize, the above embodiments can only utilize the secondary force of the oblique component generated by the axial movement of the convex element and the operating ring to push or press the locking member and the entire elastic member. This reflects that to achieve a sufficient secondary force to push the locking member and related components, a greater (axial) operating force must be applied; thus, operation becomes relatively laborious, which is not desirable.

[0006] Representatively, these references illustrate the usage and structural design of existing quick-connect fluid couplings or their related assembly components. Redesigning the structure of these quick-connect fluid couplings, considering the aforementioned applications, and making them different from existing designs could alter their usage, enhance their effectiveness, and differentiate them from current technologies. For example, considering structural and operational ease, a coupling structure could be provided that achieves quick and secure connection (or locking) and / or disconnection (or unlocking); furthermore, it could reduce operational effort, improving upon the relatively labor-intensive operation of existing components.

[0007] These topics were not taught or specifically revealed in the aforementioned reference materials. Utility Model Content

[0008] The main objective of this invention is to provide a quick-connect structure for fluid transportation, offering advantages such as ease of operation and labor-saving. It includes an assembly of a male connector, a female connector, and a sleeve. The male connector defines a chamber, an assembly end located at both ends of the chamber, and a pivot end located away from the assembly end. The female connector defines a secondary chamber, a secondary assembly end located at both ends of the secondary chamber, and a secondary pivot end located away from the secondary assembly end. The female connector is assembled with a sleeve that can move in the axial direction. A control body, a first elastic element, and a second elastic element are disposed between the sleeve and the female connector. When the male connector connects to the female connector, the component of the (axial) operating force forces the control body to push only the first elastic element, thus completing the connection operation; and / or, after the sleeve and control body are moved to push the second elastic element, the connection operation is released, improving upon the previous technology where connecting and / or disconnecting operations were relatively laborious.

[0009] According to the quick-connect structure for fluid transport described in this utility model, the female connector has a stop between the secondary assembly end and the secondary pivot end; and the sleeve defines a first end and a second end away from the first end. The first end of the sleeve is bent inward and in the direction of the second end to form a space that can accommodate at least a partial area of ​​the control body; and the sleeve (inner wall) is provided with a secondary stop, dividing the sleeve into a first area for accommodating a first elastic element and a second area for accommodating a second elastic element. Therefore, when operating the male connector to connect the female connector, by applying the component of the (axial) operating force, the control body will only push the first elastic element to complete the connection operation (or locking operation); and / or when operating the sleeve, the secondary stop of the sleeve will only push the second elastic element (and / or make the first elastic element into a relatively loose (or released) state), thereby releasing the above-mentioned connection operation (or unlocking operation). Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; it depicts the situation of a waterproof quick-connect combination switch device.

[0011] Figure 2 This is an exploded structural diagram of the male connector of this utility model; it shows the structural configuration of the piston, spring, and limiting body.

[0012] Figure 3 This is an exploded structural diagram of the female connector and sleeve of this utility model; it shows the structural configuration of the plunger, auxiliary spring, auxiliary piston, first elastic device, second elastic device, linkage, and control body.

[0013] Figure 4 This is a schematic diagram of the planar structure of this utility model; it depicts the structural fit of the male connector, female connector, and sleeve.

[0014] Figure 5 This is a schematic diagram of an operational embodiment of the present invention; it depicts the structural cooperation between the male connector and the female connector operated by the operator, and the control body pushing the linkage and the first elastic device.

[0015] Figure 6 This is a schematic diagram of another operational embodiment of the present invention; it shows the structural fit situation in which the male connector is connected to the female connector by a person to form a locked state.

[0016] Figure 7 This is a schematic diagram of an operational embodiment of the present invention; it depicts the structural configuration in which a person operates the sleeve to push the secondary stop against the second elastic device to perform the unlocking operation.

[0017] Figure 8 This is a schematic diagram of another operational embodiment of the present invention; it shows the structural cooperation of the operator moving the sleeve to push the secondary stop part to the second elastic device and the control body away from the locked position.

[0018] 10: Male connector

[0019] 11: Chamber

[0020] 12: Combination Terminal

[0021] 13: Pivot end

[0022] 14: Convex structure

[0023] 15: Incline

[0024] 16:Flat surface

[0025] 17: Braking surface

[0026] 20: Female connector

[0027] 21: Secondary chamber

[0028] 22: Sub-combination end

[0029] 23: Secondary pivot connection

[0030] 24: Sub-convex structure

[0031] 25: Head structure

[0032] 26: Alcoholic chamber

[0033] 27: Block

[0034] 30: Sleeve

[0035] 31: First end

[0036] 32: Second end

[0037] 33: Space

[0038] 34: Zone 1

[0039] 35: Second District

[0040] 37: Secondary support section

[0041] 39: Inner side

[0042] 40: Piston

[0043] 41: Notch / Groove

[0044] 42: Spring

[0045] 43: Restricted Body

[0046] 44: Washer

[0047] 45: Secondary Piston

[0048] 46: Secondary spring

[0049] 47: Secondary Washer

[0050] 48: Grooving

[0051] 49: Shoulders

[0052] 50: Plunger

[0053] 51: Column

[0054] 52: Tail area

[0055] 53: Head area

[0056] 54: Diversion orifice

[0057] 55: O-ring

[0058] 60: Control Body

[0059] 61: Main End

[0060] 62: Secondary terminal

[0061] 65: Linkage

[0062] 66: Secondary shoulder

[0063] 70: First elastic element

[0064] 75: Second elastic device

[0065] X: Axis direction. Detailed Implementation

[0066] Please see Figure 1 , 2 and Figure 3 The quick-connector structure for conveying fluid described in this utility model includes a combination of a male connector, a female connector, and a sleeve, generally indicated by reference numbers 10, 20, and 30; and an axial direction X is defined. In the following description, terms such as upper, lower, left end (side), right end (side), outside, inside, etc., refer to the direction shown in the figures.

[0067] The figure shows that the male connector 10 (internal) defines a chamber 11 (or fluid passage), a combined end 12 located at both ends of the chamber 11, and a pivot end 13 away from the combined end 12; the pivot end 13 can be connected to a fluid conduit to provide the function of conveying (cooling) fluid. The male connector 10 (or chamber 11) is equipped with a piston 40, a (ring-shaped) restraint 43, and a spring 42 disposed between the piston 40 and the restraint 43. The piston 40 is provided with a washer 44 and a notch 41. The washer 44 forms a tight seal between the piston 40 and the chamber 11 of the male connector 10, and the notch 41 provides a path for fluid flow when in a passable state. The restraint 43 is formed with a slot 48, allowing the restraint 43 to be elastically mounted and fixed to the male connector 10 (or chamber 11), and when the piston 40 abuts (or relatively pushes) against (one end) the spring 42, the restraint 43 supports or loads the other end of the spring 42.

[0068] In the adopted embodiment, the male connector 10 has a protrusion structure 14 in the region between the combined end 12 and the pivot end 13; the protrusion structure 14 includes a slope 15, a straight surface 16 connecting the slope 15 and a braking surface 17 connecting the straight surface 16.

[0069] The figure also depicts the female connector 20 defining a secondary chamber 21, a secondary assembly end 22 located at both ends of the secondary chamber 21, and a secondary pivot end 23 located away from the secondary assembly end 22; the secondary pivot end 23 can be connected to another fluid line to provide the function of conveying (cooling) fluid. Furthermore, the female connector 20 (or secondary chamber 21) is equipped with a plunger 50, a secondary piston 45, and a secondary spring 46 disposed between the plunger 50 and the secondary piston 45. The secondary piston 45 has a shoulder 49 for supporting or loading one end of the secondary spring 46, the other end of which abuts against the plunger 50.

[0070] Specifically, the plunger 50 includes a column 51 and a tail region 52 and a (T-shaped) head region 53 located at both ends of the column 51; therefore, the other end of the auxiliary spring 46 abuts against the head region 53 of the plunger 50. Furthermore, a flow divider orifice 54 is formed from the column 51 (partial area) toward the (T-shaped) head region 53; the structure of the flow divider orifice 54 provides a path for fluid flow in a passable state and allows for smoother fluid movement through the plunger 50. The tail region 52 is housed within the auxiliary piston 45; the tail region 52 is provided with an O-ring 55, creating a tight seal between the tail region 52 and the auxiliary piston 45.

[0071] In the adopted embodiment, the female connector 20 has a secondary protrusion structure 24 formed inward or towards the secondary chamber 21; a secondary washer 47 is provided between the secondary protrusion structure 24 and the secondary piston 45, so that the secondary piston 45 and the secondary chamber 21 (or secondary protrusion structure 24) of the female connector 20 form a tight fit.

[0072] The figure depicts a head structure 25 protruding outward from the secondary assembly end 22 of the female connector 20, and a plurality of geometrically shaped recesses 26 (or geometrically shaped through holes) formed on the head structure 25; the recesses 26 are used to accommodate at least a partial area of ​​the control body 60. The control body 60 has a geometrically shaped structure; for example, a columnar body, a circular body, an elliptical body, etc.

[0073] In a feasible embodiment, the control body 60 is selected to be made into an (elongated) elliptical structure, having a main end 61 and a secondary end 62, and the main end 61 protrudes at least partially (towards the secondary chamber 21) from the recess 26. Furthermore, the control body 60 can use the secondary end 62 as a (virtual) fulcrum to allow the main end 61 to form a freely swinging shape.

[0074] Please refer to Figure 3 , 4The female connector 20 has a stop 27 protruding outward between the secondary assembly end 22 and the secondary pivot end 23. The sleeve 30 of the female connector 20 assembly is movable in the axial direction X. A control body 60, a linkage 65 with a secondary shoulder 66, a first elastic element 70, and a second elastic element 75 are provided between the sleeve 30 and the female connector 20. When the male connector 10 connects to the female connector 20, the control body 60 is forced to push only the first elastic element 70 to complete the connection operation; and / or after the sleeve 30 is moved to push only the second elastic element 75 (and / or the first elastic element 70 is released), the connection operation is released, improving the situation in the prior art where operating the connection and / or releasing the connection operation is relatively laborious.

[0075] In detail, the sleeve 30 is defined with a first end 31 and a second end 32 away from the first end 31. The first end 31 of the sleeve 30 is bent inward and towards the second end 32 to form an inner edge 39 and a space 33 that can accommodate at least a partial area of ​​the control body 60 (or the secondary end 62 of the control body 60); the space 33 combines with the head structure 25 of the female connector 20, such that at least a partial area of ​​the control body 60 (or the secondary end 62) is located within the space 33 and / or the recess 26. Also, at least a partial area of ​​the control body 60 (or the main end 61) is accessible to the secondary shoulder 66 of the linkage 65.

[0076] In the adopted embodiment, the sleeve 30 (inner wall) is provided with a secondary stop 37, dividing the sleeve 30 into a first region 34 for accommodating the first elastic element 70 and a second region 35 for accommodating the second elastic element 75. Furthermore, the first elastic element 70 and the second elastic element 75 are selected in the form of helical springs; and the elastic force of the first elastic element 70 is made smaller than the elastic force of the second elastic element 75.

[0077] The figure depicts a first section 34 of the sleeve 30 (or the outer wall of the female connector 20) with a connecting member 65, such that the first elastic element 70 is assembled on the connecting member 65. The connecting member 65 has a shoulder 66 facing the first end 31 of the sleeve 30 (or the secondary assembly end 22 of the female connector 20).

[0078] Therefore, one end of the first elastic element 70 abuts against the secondary shoulder 66 of the linkage 65, and the other end of the first elastic element 70 abuts against the secondary stop 37 of the sleeve 30; and the second elastic element 75 abuts against the secondary stop 37 at one end and against the stop 27 of the female connector 20 at the other end.

[0079] Please see Figure 4 , 5 and Figure 6 , Figure 4The text depicts the initial state of the male connector 10's combined end 12 connecting to the female connector 20's secondary combined end 22 (or the male connector 10 being inserted into the female connector 20 (or secondary chamber 21)) and the situation where the male connector 10's combined end 12, the piston 40 contact the female connector 20's secondary piston 45, and the tail area 52 of the plunger 50.

[0080] Figure 5 The diagram illustrates the following motion scenarios as the male connector 10 continuously enters the female connector 20 (or secondary chamber 21) along the axial direction X (towards the left in the diagram):

[0081] 1. The protruding structure 14 (or inclined surface 15) of the male connector 10 pushes the main end 61 of the control body 60, with the secondary end 62 as a (virtual) fulcrum, to generate a swinging shape (in the direction of the upper part of the figure or the direction of the sleeve 30), forcing the control body 60 (or the main end 61) to push the linkage 65 and the first elastic device 70 (compress or store energy) until the control body 60 (or the main end 61) passes through the flat surface 16.

[0082] 2. The combined end 12 of the male connector 10 pushes the secondary piston 45 to move to the left in the figure, forcing the shoulder 49 to press the secondary spring 46 (with the head region 53 of the plunger 50 as the support point) to generate compression or store energy. Also, as the male connector 10 moves to the left in the figure, the tail region 52 of the plunger 50 blocks the piston 40 of the male connector 10, thereby forcing the spring 42 to be compressed or store energy between the piston 40 and the limiting body 43.

[0083] Figure 6 The control body 60 responds to the movement of the male connector 10 inserted into the female connector 20 (or secondary chamber 21) until the control body 60 (or main end 61) passes relative to the flat surface 16 of the protrusion structure 14, and then, in conjunction with the first elastic element 70 and the linkage 65, the control body 60 (or main end 61) automatically contacts (or locks) the braking surface 17, thereby completing the locking operation of the male connector 10 and the female connector 20; and the chamber 11 of the male connector 10 and the secondary chamber 21 of the female connector 20 form a fluid passage state.

[0084] It must be noted that, compared to existing technologies, Figure 5 , 6 The operation of connecting the male connector 10 to the female connector 20 is explained, including the following two functions:

[0085] 1. The control body 60 responds to the movement of the male connector 10 along the axial direction X, causing the main end 61 to swing with the secondary end 62 as the fulcrum, achieving a more labor-saving operation than the prior art (using the component force to push the locking part).

[0086] 2. When operating the male connector 10 to connect the female connector 20 (locking) operation, only the first elastic element 70 is pushed to accumulate energy, thus completing the connection (locking) operation (or locking operation) of the male connector 10 and the female connector 20; in particular, the force and / or length of the first elastic element 70 are smaller than those of the existing structure, thus achieving the effect of less effort in operation than in the prior art.

[0087] Please refer to Figure 7 , 8 This depicts the unlocking (or de-locking) operation of the male connector 10 and female connector 20. When the sleeve 30 is pulled or pushed along the axial direction X towards the left in the figure, the following movements are included:

[0088] 1. The secondary stop 37 of the sleeve 30 pushes the second elastic 75 to store energy; and, as the secondary stop 37 moves toward the stop 27 of the female connector 20 (or to the left in the figure), the first elastic 70 is also made to be in a relatively loose (or released) state.

[0089] 2. The inner edge 39 of the sleeve 30 pushes the control body 60 (or main end 61) to move or swing in the upward direction of the figure with the secondary end 62 as the (virtual) fulcrum, forcing the control body 60 (or main end 61) to leave the braking surface 17 of the locking action and move relative to the flat surface 16 of the convex structure 14 and / or over the inclined surface 15, so as to facilitate personnel to perform unlocking operations or release the locking state of the male connector 10 and the female connector 20.

[0090] It is understood that, compared to existing technologies, Figure 7 , 8 The unlocking operation of male connector 10 and female connector 20 is disclosed, which includes the following two functions:

[0091] 1. When the sleeve 30 moves, the secondary stop 37 of the sleeve 30 only pushes the second elastic element 75 to accumulate energy, thus completing the unlocking operation of the male connector 10 and the female connector 20; in particular, the force and / or length of the second elastic element 75 are smaller than those of existing structures. Furthermore, the sleeve 30, in conjunction with the stop 27, the second elastic element 75, the secondary stop 37, the first elastic element 70, the linkage 65, and the control body 60, forms a clamping (combined) configuration, ensuring reliable and stable operation and improving upon the tendency for related components to wobble in existing technologies.

[0092] 2. As the secondary stop 37 of the sleeve 30 moves toward the stop 27, the first elastic element 70 is relatively loose (or released), which helps to reduce the operating force required to push the control body 60 away from the brake surface 17 by the inner edge 39 of the sleeve 30, thus achieving a more effortless effect.

[0093] Representatively speaking, this quick-connect structure for fluid transport, while maintaining ease of operation, offers the following considerations and advantages compared to older methods:

[0094] 1. The male connector 10, female connector 20, sleeve 30, and related mating structures have been redesigned. For example, the male connector 10 is provided with a protrusion structure 14, a piston 40, and a groove 48 on the limiting body 43; the female connector 20 is provided with a secondary protrusion structure 24, a stop 27, a head structure 25, and a recess 26, the recess 26 (and / or the space 33 of the sleeve 30) accommodating at least a partial area of ​​the control body 60; the female connector 20 is equipped with a plunger 50, the plunger 50 having a (T-shaped) head area 53, a flow diversion hole 54, and a tail area 52; between the female connector 20 and the sleeve 30 (or in the first area 34 and the second area 35 of the sleeve 30), a linkage 65 and structural parts such as a secondary shoulder 66, a first elastic element 70, and a second elastic element 75 formed on the linkage 65 are provided, which are significantly different from the existing structures and have changed their usage and operation, thus differing from the existing structures.

[0095] 2. In particular, the male connector 10, female connector 20, sleeve 30 and related mating structures can achieve a quick and stable connection (or locking) and / or disconnection (or unlocking) function; and achieve the effect of labor-saving operation, improving the situation where operation is relatively laborious in the prior art.

[0096] This invention provides an effective quick-connect structure for conveying fluids, which has a spatial form different from the prior art and has advantages that cannot be matched by existing structures.

[0097] The above description is merely a feasible embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model patent application are covered by the scope of the present utility model.

Claims

1. A quick-connect coupling structure for conveying fluid, characterized in that: include: A combination of a male connector (10), a female connector (20), and a sleeve (30), and a defined axial direction (X); The male connector (10) defines a chamber (11), a combined end (12) located at both ends of the chamber (11), and a pivot end (13) away from the combined end (12); The female connector (20) defines a secondary chamber (21), a secondary assembly end (22) located at both ends of the secondary chamber (21), and a secondary pivot end (23) located away from the secondary assembly end (22); The female connector (20) is combined with a sleeve (30) that can move in the axial direction (X), the sleeve (30) being defined with a first end (31) and a second end (32) away from the first end (31); A control body (60), a first elastic element (70), and a second elastic element (75) are provided between the sleeve (30) and the female connector (20); The sleeve (30) is provided with a secondary stop (37), which divides the sleeve (30) into a first area (34) for accommodating the first elastic element (70) and a second area (35) for accommodating the second elastic element (75). When the male connector (10) is connected to the female connector (20), the control body (60) is forced to push the first elastic element (70) to complete the connection operation. After the sleeve (30) is operated to move and the secondary stop (37) pushes the second elastic element (75), the connection operation is released.

2. The quick-connect structure for conveying fluid as described in claim 1, characterized in that: The chamber (11) of the male connector (10) is equipped with a piston (40), an annular limiting body (43) and a spring (42) disposed between the piston (40) and the limiting body (43); The piston (40) is provided with a washer (44) and a notch (41); the limiting body (43) is formed with a slot (48), and when the piston (40) abuts against one end of the spring (42), the limiting body (43) supports the other end of the load spring (42); The auxiliary chamber (21) of the female connector (20) is equipped with a plunger (50), an auxiliary piston (45), and an auxiliary spring (46) disposed between the plunger (50) and the auxiliary piston (45); The secondary piston (45) has a shoulder (49) for supporting one end of the load secondary spring (46), and the other end of the secondary spring (46) abuts against the plunger (50); The plunger (50) includes a column (51) and a tail region (52) and a T-shaped head region (53) located at both ends of the column (51). Therefore, the other end of the auxiliary spring (46) abuts against the head region (53) of the plunger (50). A flow divider (54) is formed from a local area of ​​the column (51) toward the head region (53). The tail region (52) is housed inside the auxiliary piston (45). The tail region (52) is provided with an O-ring (55).

3. The quick-connect structure for conveying fluid as described in claim 2, characterized in that: The male connector (10) has a protruding structure (14) in the area between the combined end (12) and the pivot end (13); The convex structure (14) includes an inclined surface (15), a straight surface (16) connecting the inclined surface (15), and a braking surface (17) connecting the straight surface (16); The female connector (20) has a secondary protrusion structure (24) forming inward; a secondary washer (47) is provided between the secondary protrusion structure (24) and the secondary piston (45).

4. The quick-connect structure for conveying fluid as described in claim 1, 2, or 3, characterized in that: The female connector (20) has a head structure (25) protruding outward in the secondary assembly end (22) and a plurality of geometric recesses (26) formed on the head structure (25), the recesses (26) being used to accommodate at least a local area of ​​the control body (60); The control body (60) is elliptical in shape, with a main end (61) and a secondary end (62), and the main end (61) protrudes into the recess (26) at least partially toward the secondary chamber (21). The control body (60) can use the secondary end (62) as a fulcrum to make the main end (61) swing freely.

5. The quick-connect structure for conveying fluid as described in claim 1, 2, or 3, characterized in that: The female connector (20) has a stop (27) protruding outward between the secondary assembly end (22) and the secondary pivot end (23); A linkage (65) is provided between the first section (34) of the sleeve (30) and the female connector (20) to form a configuration in which the first elastic element (70) is assembled on the linkage (65), and the linkage (65) has a secondary shoulder (66). The first end (31) of the sleeve (30) is bent inward and the second end (32) to form an inner edge (39) and a space (33) that can accommodate at least a partial area of ​​the control body (60); The control body (60) contacts at least a partial area of ​​the secondary shoulder (66) of the linkage (65); therefore, one end of the first elastic element (70) abuts against the secondary shoulder (66) of the linkage (65), and the other end of the first elastic element (70) abuts against the secondary stop (37) of the sleeve (30); the second elastic element (75) abuts against the secondary stop (37) at one end and against the stop (27) of the female connector (20) at the other end.

6. The quick-connect structure for conveying fluid as described in claim 4, characterized in that: The female connector (20) has a stop (27) protruding outward between the secondary assembly end (22) and the secondary pivot end (23); A linkage (65) is provided between the first section (34) of the sleeve (30) and the female connector (20) to form a configuration in which the first elastic element (70) is assembled on the linkage (65), and the linkage (65) has a secondary shoulder (66). The first end (31) of the sleeve (30) is bent inward and the second end (32) to form an inner edge (39) and a space (33) that can accommodate at least a partial area of ​​the control body (60); The control body (60) contacts at least partially the secondary shoulder (66) of the linkage (65); the space (33) combines the head structure (25) of the female connector (20) so that the control body (60) is at least partially located in the space (33) and the recess (26); therefore, one end of the first elastic element (70) abuts against the secondary shoulder (66) of the linkage (65), and the other end of the first elastic element (70) abuts against the secondary stop (37) of the sleeve (30); the second elastic element (75) abuts against the secondary stop (37) at one end and against the stop (27) of the female connector (20) at the other end.

7. The quick-connect structure for conveying fluid as described in claim 1, 2, or 3, characterized in that: The first elastic element (70) and the second elastic element (75) are selected in the form of a helical spring; and the elastic force of the first elastic element (70) is made smaller than the elastic force of the second elastic element (75).

8. The quick-connect structure for conveying fluid as described in claim 4, characterized in that: The first elastic element (70) and the second elastic element (75) are selected in the form of a helical spring; and the elastic force of the first elastic element (70) is made smaller than the elastic force of the second elastic element (75).

9. The quick-connect structure for conveying fluid as described in claim 5, characterized in that: The first elastic element (70) and the second elastic element (75) are selected in the form of a helical spring; and the elastic force of the first elastic element (70) is made smaller than the elastic force of the second elastic element (75).

10. The quick-connect structure for conveying fluid as described in claim 6, characterized in that: The first elastic element (70) and the second elastic element (75) are selected in the form of a helical spring; and the elastic force of the first elastic element (70) is made smaller than the elastic force of the second elastic element (75).

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