quick connector

Abstract

The application relates to the technical field of pipeline connection, in particular to a quick connector. The quick connector comprises a male connector assembly, a female connector assembly and a locking assembly. The male connector assembly and the female connector assembly are detachably connected, so as to realize the connection and separation of the internal passages of the male connector assembly and the female connector assembly. The locking assembly comprises a clamping piece, a bushing and a sleeve. The first end of the clamping piece is connected with the female connector assembly, and the second end of the clamping piece is used for clamping or separating with the male connector assembly. The sleeve is sleeved outside the clamping piece and elastically abuts against the female connector assembly. The bushing is located inside the clamping piece and elastically abuts against the inside of the second end of the clamping piece. The locking assembly of the application realizes the opening and folding of the clamping piece by means of the sleeve and the bushing, so as to realize the locking function and the unlocking function of the locking assembly, and the structure is simple and the realization is high. Moreover, the clamping piece has small abrasion, which is beneficial to guarantee the reliability of the quick connector and prolong the service life of the quick connector.

Description

Technical Field

[0001] This application relates to the field of pipeline connection technology, and in particular to the design of a quick coupling. Background Technology

[0002] Quick couplings are connectors that allow for the connection or disconnection of pipelines without the need for tools. They are widely used in liquid transportation, gas transportation, hydraulic transmission, pneumatic control, and other fields.

[0003] In related technologies, quick couplings employ a locking structure using steel balls or metal slide pins to maintain the connection between the male and female connectors, ensuring the internal passage remains open. When the male and female connectors are disconnected, the locking structure moves relative to the quick coupling, releasing the restriction on the male and female connectors and allowing them to disconnect.

[0004] However, locking structures using steel balls or metal slides are complex and have poor feasibility. Utility Model Content

[0005] This application provides a quick connector with a simple structure and high feasibility.

[0006] This application provides a quick connector, which includes: a male connector assembly, a female connector assembly, and a locking assembly;

[0007] The male connector assembly and the female connector assembly are detachably connected;

[0008] The locking assembly is sleeved on the outside of the male connector assembly and the female connector assembly, and the locking assembly includes: a locking member, a bushing, and a sleeve;

[0009] The engaging member has a first end and a second end along the axial direction of the quick connector; the first end of the engaging member is connected to the outside of the female connector assembly.

[0010] The sleeve is fitted onto the outside of the engaging member, the sleeve elastically abuts against the female connector assembly, and the sleeve is configured to move axially along the quick connector; when the sleeve abuts against the outside of the second end of the engaging member, the second end of the engaging member retracts inward and engages with the male connector assembly.

[0011] The bushing is located inside the engaging member, and the bushing elastically abuts against the inner side of the second end of the engaging member, so that the second end of the engaging member opens outward, allowing the male connector assembly to disengage from the engaging member.

[0012] The quick connector in this embodiment of the application achieves communication and isolation of the internal channels of the male and female connector assemblies through a detachable connection between the male and female connector assemblies. A locking assembly is provided to lock the male and female connector assemblies, ensuring reliable connection between them. The locking assembly includes a locking member, a bushing, and a sleeve. The first end of the locking member is connected to the female connector assembly, and the second end of the locking member is used to engage or disengage from the male connector assembly. The sleeve is fitted on the outside of the locking member and elastically abuts against the female connector assembly. When the sleeve abuts against the outside of the second end of the locking member, it causes the second end of the locking member to retract inward and engage with the male connector assembly, thereby locking the male and female connector assemblies. The bushing is located inside the locking member and elastically abuts against the inside of the second end of the locking member, causing the second end of the locking member to open outward, allowing the male connector assembly to disengage from the locking member and separate from the female connector assembly.

[0013] The locking assembly of the quick connector in this application embodiment utilizes a sleeve and bushing to open and close the engaging member, thereby achieving both locking and unlocking functions. The structure is simple and highly feasible. Furthermore, the engaging member experiences minimal wear, which helps ensure the reliability of the quick connector and extends its service life. Minimal wear on the engaging member also facilitates the use of plastic components in the quick connector.

[0014] In some embodiments of this application, the locking assembly further includes a first elastic member, one end of which abuts against the outer side of the female connector assembly, and the other end of which abuts against the bushing.

[0015] When the male connector assembly is disengaged from the female connector assembly, the end of the bushing facing away from the first elastic member abuts against the inner side of the second end of the engaging member;

[0016] When the male connector assembly is connected to the female connector assembly, the bushing moves toward the first end of the engaging member and abuts against the male connector assembly.

[0017] In some embodiments of this application, a first inclined surface is formed on the inner side of the end of the bushing opposite to the first elastic member; along the axial direction of the quick connector, from the first elastic member to the bushing, the first inclined surface is inclined outward;

[0018] The male connector assembly is provided with an abutting protrusion, which forms a second inclined surface;

[0019] When the male connector assembly is connected to the female connector assembly, the second inclined surface abuts against the first inclined surface.

[0020] In some embodiments of this application, the male connector assembly forms an engaging groove on the side of the abutting protrusion opposite to the female connector assembly; the end of the abutting protrusion opposite to the second inclined surface forms a third inclined surface;

[0021] The second end of the engaging member forms an engaging protrusion, and the engaging protrusion forms a fourth inclined surface; along the axial direction of the quick connector, from the first end to the second end of the engaging member, the fourth inclined surface is inclined inward;

[0022] When the male connector assembly is connected to the female connector assembly, the engaging protrusion engages with the engaging groove, and the fourth inclined surface abuts against the third inclined surface.

[0023] In some embodiments of this application, a mating protrusion is provided on the inner side of the first end of the engaging member, and the mating protrusion forms a mating slope.

[0024] Along the axial direction of the quick connector, from the first end to the second end of the engaging member, the mating bevel is inclined inward;

[0025] The outer side of the female connector assembly is provided with a mating groove that mates with the mating protrusion.

[0026] In some embodiments of this application, the locking assembly further includes a second elastic member, one end of which is fixed to the outside of the female connector assembly, and the other end of which abuts against the sleeve; the second elastic member and the engaging member are spaced apart along the axial direction of the quick connector;

[0027] The end of the sleeve opposite to the second elastic element abuts against the outer side of the engaging element.

[0028] In some embodiments of this application, the inner side of the sleeve has a first retaining ring portion, and the side of the first retaining ring portion opposite to the engaging member abuts against the second elastic member;

[0029] A limiting groove is formed at the end of the sleeve opposite to the second elastic element;

[0030] When the male connector assembly is connected to the female connector assembly, the limiting groove abuts against the outer side of the engaging member.

[0031] In some embodiments of this application, the engaging component includes a plurality of arc-shaped locking blocks and a first retaining spring, the plurality of arc-shaped locking blocks being arranged at circumferential intervals along the quick connector;

[0032] The first retaining ring is engaged at the first end of the outer side of the plurality of arc-shaped retaining blocks.

[0033] In some embodiments of this application, the male connector assembly includes a male connector body, a male connector elastic element, and a male connector mover;

[0034] The male connector body is constructed to form a first channel, and the male connector moving part and the male connector elastic element are both located within the first channel; the two ends of the male connector elastic element are respectively connected to the male connector moving part and the male connector body.

[0035] When the male connector assembly is connected to the female connector assembly, the engaging member engages with the male connector body; the male connector moving part abuts against the female connector assembly and moves away from the female connector assembly to open the first channel;

[0036] When the male connector assembly disengages from the female connector assembly, the male connector elastic element pushes the male connector moving element to form a sealing connection with the male connector body.

[0037] In some embodiments of this application, the female connector assembly includes a female connector body, a female connector mover, a female connector stator, and a female connector elastic element;

[0038] The main body of the female connector forms a second channel, and the female connector stator is fixed in the second channel; the two ends of the elastic element of the female connector are respectively connected to the female connector stator and the female connector moving part;

[0039] When the male connector assembly is connected to the female connector assembly, the female connector stator abuts against the male connector mover, and the female connector mover abuts against the male connector body, so that the second channel communicates with the first channel;

[0040] When the male connector assembly disengages from the female connector assembly, the female connector elastic element pushes the female connector moving element to form a sealing connection between the female connector stator and the female connector body. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments of this application or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only a part of the embodiments of this application. These drawings and text descriptions are not intended to limit the scope of the concept of this application in any way, but rather to illustrate the concept of this application to those skilled in the art by referring to specific embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This is a front view of the quick connector when connected according to an embodiment of this application;

[0043] Figure 2 for Figure 1 AA section view in the middle;

[0044] Figure 3 A cross-sectional view of the quick connector when disconnected, provided in an embodiment of this application;

[0045] Figure 4 This is a schematic diagram of the structure of the male connector assembly of the quick connector provided in the embodiments of this application;

[0046] Figure 5 for Figure 4 BB section view in the middle;

[0047] Figure 6 Schematic diagrams of the locking assembly and female connector assembly of the quick-connect structure provided in the embodiments of this application;

[0048] Figure 7 for Figure 6 CC section view in the middle;

[0049] Figure 8 A cross-sectional view of the engaging component of a quick connector provided in an embodiment of this application.

[0050] Explanation of reference numerals in the attached figures:

[0051] 100: Male connector assembly; 110: Male connector body; 111: First channel; 112: Abutting protrusion; 1121: Second inclined surface; 1122: Third inclined surface; 1123: First end face; 1124: First circumferential side surface; 113: Engaging groove; 114: First sealing ring; 115: First limiting part; 120: Male connector mover; 121: First flow passage; 1211: First flow outlet; 122: First sealing part; 1221: Second sealing ring; 130: Male connector elastic element; 140: Third retaining spring;

[0052] 200: Female connector assembly; 210: Female connector body; 211: Second channel; 212: First housing; 2121: Mating groove; 2122: Limiting step; 2123: Third sealing ring; 2124: Identifier; 213: Second housing; 2131: Fourth sealing ring; 2132: Sixth sealing ring; 2133: Abutment step; 220: Female connector mover; 230: Female connector stator; 231: Second flow passage; 2311: Second flow outlet; 232: Connecting part; 233: Second sealing part; 2331: Fifth sealing ring; 240: Female connector elastic element;

[0053] 300: Locking assembly; 310: Engaging component; 311: Engaging block; 3111: Engaging groove; 312: First retaining spring; 313: Engaging protrusion; 3131: Fourth inclined surface; 3132: Abutting surface; 314: Second circumferential side surface; 315: Fifth inclined surface; 316: Matching protrusion; 3161: Matching inclined surface; 317: Limiting protrusion; 320: Bushing; 321: First inclined surface; 330: Sleeve; 331: First retaining ring portion; 332: Limiting groove; 3321: First groove wall; 3322: Second groove wall; 340: First elastic element; 350: Second elastic element; 360: Second retaining ring portion; 370: Second retaining spring. Detailed Implementation

[0054] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0055] Quick couplings are equipped with a locking mechanism to keep the male and female connectors connected, ensuring the internal passage remains open. In related technologies, the locking mechanism includes steel balls or metal slides that move relative to the quick coupling to release the restriction on the male and female connectors, allowing them to disconnect. Existing locking mechanisms are complex and have poor feasibility.

[0056] Furthermore, when quick couplings are made of plastic, the locking structure moves relative to the quick coupling, making it prone to wear and affecting the reliability and service life of the quick coupling.

[0057] In view of this, embodiments of this application provide a quick connector. By providing a locking element, the first end of the locking element is connected to the female connector body, and the second end is engaged with the male connector body. Under the action of the sleeve and bushing, the second end of the locking element is configured to close, allowing it to engage with the male connector body, thereby achieving a fixed connection between the male and female connector bodies; alternatively, the second end of the locking element is configured to open, allowing it to disengage from the male connector body, thus separating the male and female connector bodies. The locking structure of the male and female connector bodies in this embodiment is simple and highly feasible; furthermore, when the quick connector is made of plastic, the wear of the locking element is minimal, which helps improve the reliability and service life of the quick connector.

[0058] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0059] Combination Figures 1 to 8 This application provides a quick connector that can be applied to various scenarios. For example, the quick connector can be used in fluid pipelines such as coolant pipelines and gas pipelines.

[0060] The quick-connector of this application embodiment includes a male connector assembly 100, a female connector assembly 200, and a locking assembly 300, wherein the male connector assembly 100 and the female connector assembly 200 are detachably connected. The end of the male connector assembly 100 opposite to the female connector assembly 200 is connected to a first pipe, and the end of the female connector assembly 200 opposite to the male connector assembly 100 is connected to a second pipe. When the male connector assembly 100 and the female connector assembly 200 are connected, the first pipe and the second pipe are connected, enabling fluid flow. When the male connector assembly 100 and the female connector assembly 200 are disconnected, the male connector assembly 100 is configured to block the first pipe, and the female connector assembly 200 is configured to block the second pipe, facilitating pipe maintenance and repair.

[0061] The locking component 300 has a locked state and an unlocked state, such as Figure 2 As shown, when the locking assembly 300 is in the locked state, it locks the male connector assembly 100 and the female connector assembly 200, ensuring the stability of the connection between the male connector assembly 100 and the female connector assembly 200; as Figure 3 As shown, when the locking component 300 is in the unlocked state, the male connector component 100 and the female connector component 200 can be disengaged from each other and disconnected.

[0062] Combination Figure 4 and Figure 5 In some embodiments of this application, the male connector assembly 100 includes a male connector body 110, a male connector elastic element 130, a male connector mover 120, and a third retaining ring 140.

[0063] The male connector body 110 is tubular, extending along the axial direction of the quick connector (corresponding to...). Figure 5 Extending along the Z-axis. The male connector body 110 has a circular cross-section, facilitating the assembly of the components. The male connector body 110 is constructed to form a first channel 111, which not only provides installation space for the male connector elastic element 130 and the male connector mover 120, but also provides a channel for fluid flow.

[0064] The male connector body 110 has a first end and a second end along its axial direction. The first end of the male connector body 110 is connected to the female connector assembly 200, and the second end of the male connector body 110 is used for a sealing connection with a first pipeline. The connection method includes snap-fit, threaded connection, flange connection, etc. For example, a first sealing ring 114 is provided on the outer side of the second end of the male connector body 110 to improve the sealing performance of the connection between the male connector body 110 and the first pipeline.

[0065] Both the male connector mover 120 and the male connector elastic element 130 are located within the first channel 111; both ends of the male connector elastic element 130 are connected to the male connector mover 120 and the male connector body 110, respectively. One end of the male connector elastic element 130 is connected to the male connector body 110 via a third retaining ring 140.

[0066] Combination Figure 1 and Figure 2 When the male connector assembly 100 is connected to the female connector assembly 200, the male connector mover 120 abuts against the female connector assembly 200 and moves away from the female connector assembly 200 to make the first channel 111 open.

[0067] When the male connector assembly 100 and the female connector assembly 200 are disconnected, the male connector elastic element 130 pushes the male connector mover 120 to seal with the male connector body 110, thereby blocking the first channel 111.

[0068] The male connector elastic element 130 should not obstruct the flow of fluid; therefore, the male connector elastic element 130 is annular. The figure illustrates the male connector elastic element 130 as a cylindrical helical spring, but this is not a limitation on its structure. For example, the male connector elastic element 130 can also be a wave spring, an elastic sleeve, etc.

[0069] In some examples, the male connector elastic element 130 has an axial shape along the quick connector (corresponding to...) Figure 5 The first end of the male connector elastic element 130 abuts against the male connector mover 120 at the first and second ends (in the Z-axis direction), eliminating the need for additional connection structures and simplifying the structure of the male connector assembly 100. The second end of the male connector elastic element 130 abuts against the third retaining spring 140 provided on the inner wall of the male connector body 110.

[0070] For example, a third retaining ring 140 is provided at the end of the male connector body 110 opposite to the male connector mover 120, and the third retaining ring 140 is located within the first channel 111. The second end of the male connector elastic member 130 abuts against the third retaining ring 140. This arrangement allows the third retaining ring 140 and the male connector elastic member 130 to be directly installed within the first channel 111, which simplifies the structure of the male connector assembly 100. Thus, the male connector elastic member 130 is elastically compressed between the third retaining ring 140 and the male connector mover 120, ensuring the sealing between the male connector mover 120 and the male connector body 110.

[0071] Continue to refer to Figure 5 The male connector mover 120 may include a first flow-through portion 121 and a first sealing portion 122. The first sealing portion 122 and the first flow-through portion 121 are integrally formed. The first sealing portion 122 is located on the side of the first flow-through portion 121 opposite to the male connector elastic member 130. The first flow-through portion 121 abuts against the first end of the male connector elastic member 130.

[0072] The first flow passage 121 is annular and has a first flow outlet 1211 to connect the inner and outer sides of the first flow passage 121. The inner side of the first flow passage 121 is the side facing the center of the first channel 111, and the outer side of the first flow passage 121 is the side away from the center of the first channel 111.

[0073] A first limiting portion 115 is formed on the inner side of the male connector body 110 away from the end of the male connector elastic member 130. The first limiting portion 115 protrudes inward from the inner wall surface of the first channel 111. As a result, the inner diameter of the first limiting portion 115 is smaller than the inner diameter of the first channel 111 above it. The first limiting portion 115 abuts against the first flow portion 121 to prevent the male connector mover 120 from disengaging from the first channel 111.

[0074] The first flow passage 121 is inclined at one end near the first sealing part 122, so that the first flow passage 121 and the first limiting part 115 abut against each other through the inclined surface. This not only helps to improve the reliability of the abutment between the first limiting part 115 and the first flow passage 121, but also the first flow port 1211 extends to the inclined part of the first flow passage 121, which facilitates the radial side communication between the first flow port 1211 and the first sealing part 122.

[0075] The first sealing part 122 is used to seal and connect with the first limiting part 115 to block the first channel 111. A second sealing ring 1221 is provided on the first sealing part 122 for sealing and connecting with the first limiting part 115.

[0076] Combination Figure 1 , Figure 2 as well as Figure 5 When the male connector assembly 100 is connected to the female connector assembly 200, the male connector body 110 is inserted into the female connector assembly 200, and the male connector mover 120 abuts against the female connector assembly 200. The male connector elastic element 130 is compressed, causing the male connector mover 120 to move away from the female connector assembly 200. This causes the first sealing part 122 to move above the first limiting part 115, thereby creating a gap between the radial side of the first sealing part 122 and the inner wall of the first channel 111. This gap communicates with the first flow port 1211 of the first flow-through part 121, thus enabling the first channel 111 to be open.

[0077] Reference Figure 3 and Figure 5 When the male connector assembly 100 and the female connector assembly 200 are disconnected, the male connector body 110 detaches from the female connector assembly 200. Under the elastic action of the male connector elastic element 130, the male connector mover 120 is pushed to move toward the end of the male connector body 110 away from the first pipe, thereby making the first sealing part 122 and the first limiting part 115 seal and connect, thereby blocking the first channel 111. Moreover, under the abutting action of the first flow part 121 and the first limiting part 115, the male connector mover 120 will not come out of the first channel 111.

[0078] Combination Figure 6 and Figure 7 In some embodiments of this application, the female connector assembly 200 includes a female connector body 210, a female connector mover 220, a female connector stator 230, and a female connector elastic member 240.

[0079] The female connector body 210 is tubular, extending along the axial direction of the quick connector (corresponding to...). Figure 7 Extending along the Z-axis. The female connector body 210 has a circular cross-section, facilitating the assembly of the components. The female connector body 210 is constructed to form a second channel 211, which not only provides installation space for the female connector elastic element 240, the female connector stator 230, and the female connector mover 220, but also provides a channel for fluid flow.

[0080] The female connector body 210 has a first end and a second end along its axial direction. The first end of the female connector body 210 is connected to the male connector assembly 100, and the second end of the female connector body 210 is used for a sealing connection with a second pipeline. The connection method includes snap-fit, threaded connection, flange connection, etc. Exemplarily, a third sealing ring 2123 and a marking element 2124 are provided on the outer side of the second end of the female connector body 210. The third sealing ring 2123 and the marking element 2124 are spaced apart along the axial direction. The third sealing ring 2123 can improve the sealing performance of the connection between the female connector body 210 and the second pipeline. The marking element 2124 can be annular and fitted onto the outer side of the female connector body 210 as an inlet / outlet marker.

[0081] In some embodiments, the female connector body 210 includes a first housing 212 and a second housing 213, with the second housing 213 located near the male connector assembly 100. The first housing 212 is used to connect to a second pipe, and a third sealing ring 2123 and a marking element 2124 are disposed on the outer side of the first housing 212. The first housing 212 and the second housing 213 are sealed together, for example, by snap-fitting or threaded connection. A fourth sealing ring 2131 is provided between the first housing 212 and the second housing 213 to ensure a tight seal between them.

[0082] Both the first housing 212 and the second housing 213 are tubular, and the first housing 212 and the second housing 213 are connected axially to form the second channel 211.

[0083] A portion of the first housing 212 is fitted onto the outside of the second housing 213, and a limiting step 2122 is formed on the inner side of the first housing 212, the limiting step 2122 abutting against the end of the second housing 213 facing the first housing 212.

[0084] The female connector stator 230 is fixed inside the second channel 211; the two ends of the female connector elastic element 240 are respectively connected to the female connector stator 230 and the female connector mover 220.

[0085] The female connector stator 230, female connector mover 220, and female connector elastic element 240 can all be installed inside the second housing 213.

[0086] During the connection and disconnection of the male connector assembly 100 and the female connector assembly 200, the female connector stator 230 remains fixed relative to the female connector body 210. The female connector stator 230 may include a second flow-through portion 231, a connecting portion 232, and a second sealing portion 233, which are sequentially connected along the axial direction from the first end to the second end of the female connector body 210.

[0087] The connecting portion 232 connects the second sealing portion 233 and the second flow portion 231, and the connecting portion 232 is radially spaced from the side wall of the second housing 213 to provide a channel for fluid flow.

[0088] The second flow passage 231 can be a plate perpendicular to the connecting part 232. A second flow control is provided on the second flow passage 231 so that the channel of the second housing 213 is connected to the channel of the first housing 212. The outer edge of the second flow passage 231 is sandwiched between the second housing 213 and the limiting step 2122, thereby fixing the female connector stator 230 in the second channel 211.

[0089] The second sealing part 233 is used for a sealing connection with the female connector mover 220 to block the second channel 211. A fifth sealing ring 2331 is provided on the outer side of the second sealing part 233 to achieve a seal with the female connector mover 220.

[0090] Continue to refer to Figure 7 The female connector mover 220 is a cylindrical shape with openings at both ends. When the male connector assembly 100 and the female connector assembly 200 are disconnected, refer to... Figure 3 The second sealing part 233 extends into the female connector mover 220, so that the fifth sealing ring 2331 is located between the female connector mover 220 and the second sealing part 233 to block the second channel 211.

[0091] Furthermore, a sixth sealing ring 2132 is provided on the inner side of the second housing 213 of the female connector body 210, and multiple sixth sealing rings 2132 can be provided at intervals along the axial direction of the second housing 213. When the male connector assembly 100 is disconnected from the female connector assembly 200, at least one sixth sealing ring 2132 is located between the female connector mover 220 and the second housing 213 to seal the female connector mover 220 and the second housing 213, ensuring the reliability of the second channel 211 closure.

[0092] The female connector elastic element 240 should not obstruct the flow of fluid; therefore, the female connector elastic element 240 is annular. The figure illustrates the female connector elastic element 240 as a cylindrical helical spring, but this is not a limitation on its structure. For example, the female connector elastic element 240 can also be a wave spring, an elastic sleeve, etc.

[0093] In some examples, the female connector elastic element 240 has an axial shape along the quick connector (corresponding to...) Figure 7 The first end of the female connector elastic element 240 abuts against the female connector mover 220 at its first and second ends (in the Z-axis direction). The second end of the female connector elastic element 240 abuts against the second flow portion 231 of the female connector stator 230. Thus, the female connector elastic element 240 does not require an additional connection structure, simplifying the structure of the female connector assembly 200.

[0094] Combination Figure 2 and Figure 7When the male connector assembly 100 is connected to the female connector assembly 200, the female connector stator 230 abuts against the male connector mover 120, and the female connector mover 220 abuts against the male connector body 110, so that the second channel 211 communicates with the first channel 111. Specifically, when the male connector assembly 100 is connected to the female connector assembly 200, the male connector body 110 is inserted into the second housing 213, and a sixth sealing ring 2132 is provided between the male connector body 110 and the second housing 213 of the female connector body 210 to ensure the sealing of the connection between the two. The male connector body 110 pushes the female connector mover 220 to squeeze the female connector elastic member 240, moving it toward the second end of the female connector assembly 200 (towards). Figure 2 (The downward movement of the direction shown in the image) causes the female connector mover 220 to move to the outside of the connecting portion 232, thereby forming a first gap between the female connector mover 220 and the connecting portion 232. Simultaneously, the second sealing portion 233 of the female connector stator 230 abuts against the first sealing portion 122 of the male connector mover 120, causing the male connector mover 120 to press against the male connector elastic member 130 and move towards the second end of the male connector body 110 (towards...). Figure 2 (The direction shown is moved upwards), so that a second gap is formed between the female connector stator 230 and the male connector body 110. At this time, the male connector mover 120 moves upwards to form a third gap with the male connector body 110, and the third gap is connected to the first flow port 1211.

[0095] Thus, the fluid in the first pipe sequentially passes through the first channel 111, the first outlet 1211, the third interval, the second interval, and the first interval into the second channel 211. Then, the fluid flows towards the second outlet 2311, allowing the fluid in the first pipe to flow into the second pipe. Of course, the fluid in the second pipe can flow into the first pipe in the opposite direction to the fluid flow direction described above.

[0096] Combination Figure 3 and Figure 7 When the male connector assembly 100 disengages from the female connector assembly 200, the female connector elastic element 240 pushes the female connector mover 220 to form a sealing connection between the female connector stator 230 and the female connector body 210. Specifically, after the female connector mover 220 is no longer restrained by the male connector body 110, the female connector elastic element 240 restores its elastic deformation, pushing the female connector mover 220 upward to form a sealing connection with the first sealing part 122 and the second housing 213 of the female connector stator 230, thereby blocking the second channel 211.

[0097] The specific structure and function of the locking component 300 provided in the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0098] Combination Figure 2The locking assembly 300 is annular and is sleeved on the outside of the male connector assembly 100 and the female connector assembly 200. The locking assembly 300 includes: a locking member 310, a bushing 320, and a sleeve 330.

[0099] The engaging member 310 has a axial position along the quick connector (corresponding to) Figure 2 The first and second ends of the Z-axis direction; the first end of the engaging member 310 is connected to the outside of the female connector assembly 200.

[0100] Combination Figure 7 The first end of the engaging member 310 is connected to the outside of the second housing 213 of the female connector assembly 200. The first end of the engaging member 310 can be engaged with the outside of the second housing 213 by means of a convex-concave fit.

[0101] Combination Figure 6 and Figure 8 In some embodiments of this application, the locking member 310 includes a plurality of arc-shaped locking blocks 311 and a first retaining spring 312, the plurality of arc-shaped locking blocks 311 being arranged at circumferential intervals along the quick connector. Figure 6 The example shown is that there are six arc-shaped card blocks 311, but this is not a limitation on the number of arc-shaped card blocks 311. For example, there can be four, three, two, seven, etc.

[0102] The first retaining spring 312 is engaged at the first end of the outer side of the plurality of arc-shaped retaining blocks 311. The first end of the outer side of the arc-shaped retaining block 311 is provided with a retaining groove 3111, and the first retaining spring 312 is engaged in the retaining groove 3111, thereby making the plurality of arc-shaped retaining blocks 311 form a cylindrical structure.

[0103] Under the action of bushing 320 and sleeve 330, the second ends of multiple arc-shaped locking blocks 311 can be retracted inward or opened outward.

[0104] exist Figure 8 In the orientation shown, the second end of the multiple arc-shaped blocks 311 is the top end, and the first end of the multiple arc-shaped blocks 311 is the bottom end.

[0105] In this embodiment, the engaging component 310 forms a cylindrical structure by arranging multiple arc-shaped locking blocks 311 at intervals along the circumference of the quick connector. This structure can not only be fitted onto the outside of the male connector assembly 100 and the female connector assembly 200, but the spacing between the multiple arc-shaped locking blocks 311 facilitates their opening and closing, resulting in more sensitive operation. The engaging component 310, by incorporating a first retaining spring 312, not only constrains the multiple arc-shaped locking blocks 311 to form a cylindrical structure, but also helps to draw the multiple arc-shaped locking blocks 311 inward, thus improving the stability of the connection between the first ends of the multiple arc-shaped locking blocks 311 and the second housing 213 of the female connector assembly 200.

[0106] In some embodiments of this application, combined with Figure 8 The inner side of the first end of the engaging component 310 is provided with a mating protrusion 316; the inner side of the first end of the plurality of arc-shaped locking blocks 311 is provided with a mating protrusion 316.

[0107] Combination Figure 7 The outer side of the female connector assembly 200 is provided with a mating groove 2121 that mates with the mating protrusion 316. The mating groove 2121 is located on the outer side of the end of the second housing 213 that is away from the first housing 212.

[0108] The engagement of the locking member 310 and the female connector assembly 200 is achieved by the engagement of the protrusion 316 and the engagement groove 2121; and the first retaining spring 312 is located outside the engagement protrusion 316. Under the action of the inward contraction elastic force of the first retaining spring 312, the reliability of the connection between the locking member 310 and the female connector assembly 200 is improved.

[0109] Continue to refer to Figure 8 The protrusion 316 forms a mating chamfer 3161. Along the axial direction of the quick connector (corresponding to...) Figure 8 (in the Z-axis direction), from the first end to the second end of the engaging part 310 (in the Z-axis direction) Figure 8 In the orientation shown, from bottom to top, the inclined plane 3161 slopes inward.

[0110] Combination Figure 2 and Figure 3 When the second end of the engaging member 310 opens outward, the engaging protrusion 316 at the first end moves inward. The setting of the engaging inclined surface 3161 can avoid the groove wall of the engaging groove 2121, thus avoiding interference between the engaging protrusion 316 and the engaging groove 2121 and affecting the opening of the engaging member 310.

[0111] The second end of the engaging member 310 can open and close under the action of the sleeve 330 and the bushing 320. When the second end of the engaging member 310 is closed, the locking component 300 is in a locked state, and the second end of the engaging member 310 is engaged with the male connector body 110 of the male connector assembly 100. When the second end of the engaging member 310 is open, the locking component 300 is in an unlocked state, and the second end of the engaging member 310 is disengaged from the male connector body 110, so that the male connector assembly 100 can be pulled out from the female connector assembly 200.

[0112] Continue to refer to Figure 2 and Figure 3 The sleeve 330 is fitted onto the outside of the engaging member 310, and the sleeve 330 elastically abuts against the female connector assembly 200. The sleeve 330 is configured to be aligned axially with the quick connector (corresponding to...). Figure 2 and Figure 3The sleeve 330 moves along the Z-axis. Part of the sleeve 330 is fitted onto the outside of the second housing 213, and the other part of the sleeve 330 is fitted onto the outside of the engaging member 310.

[0113] In some embodiments, the locking assembly 300 further includes a second elastic member 350, one end of which is fixed to the outside of the female connector assembly 200, and the other end of which is fixed to the outside of the second housing 213. The other end of the second elastic member 350 abuts against the sleeve 330; the second elastic member 350 and the engaging member 310 are spaced apart along the axial direction of the quick connector.

[0114] The end of the sleeve 330 that is away from the second elastic member 350 abuts against the outer side of the engaging member 310.

[0115] In this embodiment, a second elastic element 350 is provided to achieve elastic contact between the sleeve 330 and the female connector assembly 200. The provision of the second elastic element 350 allows the sleeve 330 to move axially.

[0116] Continue to refer to Figure 7 The inner side of the sleeve 330 has a first retaining ring portion 331, and the side of the first retaining ring portion 331 opposite to the engaging member 310 abuts against the second elastic member 350. The engaging member 310 and the second elastic member 350 are respectively located at both ends of the first retaining ring portion 331 along the axial direction.

[0117] The locking assembly 300 may further include a second retaining ring portion 360 and a second retaining spring 370. The second retaining ring portion 360 is sleeved on the outer side of the second housing 213 of the female connector assembly 200. Furthermore, the second retaining ring portion 360 is located inside the sleeve 330. The second retaining ring portion 360 abuts against the second elastic member 350, causing the second elastic member 350 to be elastically compressed between the first retaining ring portion 331 and the second retaining ring portion 360.

[0118] In some embodiments, a snap-fit ​​groove is provided on the outer side of the second housing 213, and the second snap-fit ​​spring 370 is installed in the snap-fit ​​groove. The second snap-fit ​​spring 370 is located on the side of the second retaining ring portion 360 away from the second elastic member 350. In this way, the second snap-fit ​​spring 370 is used to restrict the second retaining ring portion 360, so that the installation structure of the second elastic member 350 and the second retaining ring portion 360 is simple.

[0119] When the male connector assembly 100 is connected to the female connector assembly 200, the engaging member 310 retracts into the sleeve 330; when the male connector assembly 100 is disconnected from the female connector assembly 200, a portion of the engaging member 310 extends out to the outside of the sleeve 330.

[0120] The sleeve 330 elastically abuts against the outer side of the second end of the engaging member 310, causing the second end of the engaging member 310 to retract inward and engage with the male connector assembly 100. The engaging member 310 engages with the male connector body 110.

[0121] In some embodiments, combined with Figure 2 and Figure 3 A limiting groove 332 is formed at the end of the sleeve 330 opposite to the second elastic member 350. In the orientation shown in the figure, the limiting groove 332 is formed at the top end of the sleeve 330.

[0122] When the male connector assembly 100 is connected to the female connector assembly 200, the limiting groove 332 abuts against the outer side of the engaging member 310 to restrict the engaging member 310 inward, so that the second end of the engaging member 310 is retracted inward.

[0123] Combination Figure 7 A limiting groove 332 is formed on the inner side of the end of the sleeve 330 away from the second elastic member 350. The limiting groove 332 has a first groove wall 3321 and a second groove wall 3322. The first groove wall 3321 is radially opposite to the side wall of the sleeve 330. One end of the first groove wall 3321 extends axially to the port of the sleeve 330, and the other end of the first groove wall 3321 is connected to the first groove wall 3321.

[0124] The outer side of the second end of the engaging component 310 has a limiting protrusion 317, which cooperates with the limiting groove 332, so that the second end of the engaging component 310 is retracted inward under the action of the sleeve 330, thereby realizing the engaging of the engaging component 310 with the male connector body 110.

[0125] Along the axial direction from the first end to the second end of the engaging member 310 (corresponding to Figure 2 Along the Z-axis (from bottom to top), the first groove wall 3321 slopes outward. Radially from the outside to the inside, the second groove wall 3322 slopes toward the second end of the engaging member 310, that is, the second groove wall 3322 slopes downward.

[0126] With this configuration, the inclined first groove wall 3321 can not only abut against the engaging member 310 radially inward, causing the second end of the engaging member 310 to retract inward; but also, when the male connector assembly 100 and the female connector assembly 200 are disconnected, the outwardly inclined first groove wall 3321 can quickly engage the engaging member 310, causing the engaging member 310 to disengage from the sleeve 330 and open outward, thus releasing the male connector assembly 100. The mating surface between the inclined second groove wall 3322 and the limiting protrusion 317 is inclined downward, so that the abutment force of the second groove wall 3322 against the limiting protrusion 317 can be decomposed into a first component force radially inward and a second component force axially downward. The first component force serves to retract the second end of the engaging member 310, and the second component force acts downward on the engaging member 310, restricting the engaging member 310 from axially disengaging to the outside of the sleeve 330, which helps to improve the restrictive effect of the sleeve 330 on the engaging member 310.

[0127] In some embodiments of this application, combined with Figure 2 and Figure 3 The male connector assembly 100 is provided with a locking groove 113, which is located on the outer side of the male connector body 110. The locking groove 113 opens radially outward.

[0128] The second end of the engaging member 310 forms an engaging protrusion 313, which is located inside the engaging member 310. The engaging protrusion 313 and the limiting protrusion 317 are opposite each other radially along the engaging member 310. When the male connector assembly 100 is connected to the female connector assembly 200, the engaging protrusion 313 engages with the engaging groove 113 to achieve engagement between the engaging member 310 and the male connector body 110.

[0129] The male connector assembly 100 also has an abutment protrusion 112, which is located on the side of the engaging groove 113 facing the female connector assembly 200. Figure 2 In the orientation shown, the abutment protrusion 112 is located below the engagement groove 113. The abutment protrusion 112 is formed by the outer side of the male connector body 110 protruding radially outward.

[0130] The abutment protrusion 112 forms a third inclined surface 1122. The abutment protrusion 112 has a first end face 1123, which is perpendicular to the axial direction of the quick connector. The outer end of the first end face 1123 is connected to the third inclined surface 1122, and the end of the third inclined surface 1122 that is away from the first end face 1123 is inclined outward.

[0131] The engaging protrusion 313 forms a fourth inclined surface 3131; along the axial direction of the quick connector, from the first end to the second end of the engaging member 310 (in... Figure 2 (As shown in the orientation from bottom to top), the fourth slope 3131 slopes inward.

[0132] When the male connector assembly 100 is connected to the female connector assembly 200, the fourth inclined surface 3131 abuts against the third inclined surface 1122. The cooperation of the inclined surfaces not only makes the contact between the engaging protrusion 313 and the abutting protrusion 112 more stable, thus making the engagement between the engaging member 310 and the male connector body 110 more stable; it also makes the contact and disengagement of the engaging protrusion 313 and the abutting protrusion 112 smoother.

[0133] Continue to refer to Figure 2 and Figure 3 The bushing 320 is located inside the engaging member 310 and is a cylindrical shape with openings at both ends. The bushing 320 is fitted onto the outside of the male connector body 110. The bushing 320 elastically abuts against the inner side of the second end of the engaging member 310, so that the second end of the engaging member 310 opens outward, allowing the male connector assembly 100 to disengage from the engaging member 310.

[0134] In some embodiments of this application, the locking assembly 300 further includes a first elastic member 340, one end of which abuts against the outer side of the female connector assembly 200, and the other end of which abuts against the bushing 320.

[0135] In the figure, the first elastic element 340 is illustrated using a wave spring as an example, but this is not a limitation on the structure of the first elastic element 340. The first elastic element 340 can be a coil spring, an elastic sleeve, etc.

[0136] The first elastic element 340 adopts a wave spring, which has a compact structure, saves space, and distributes the load more evenly.

[0137] The outer side of the second housing 213 opposite to the first housing 212 forms an abutment step 2133, and the abutment step 2133 and the bushing 320 are spaced apart along the axial direction so that the first elastic member 340 abuts between the abutment step 2133 and the bushing 320.

[0138] When the male connector assembly 100 disengages from the female connector assembly 200, the end of the bushing 320 facing away from the first elastic member 340 abuts against the inner side of the second end of the engaging member 310. Under the action of the first elastic member 340, the bushing 320 moves upward and abuts against the second end of the engaging member 310 outward, causing the second end of the engaging member 310 to expand outward.

[0139] When the male connector assembly 100 is connected to the female connector assembly 200, the bushing 320 moves toward the first end of the engaging member 310 and abuts against the male connector assembly 100. The bushing 320 abuts against the male connector body 110, and under the action of the male connector body 110, the first elastic member 340 is elastically compressed, causing the bushing 320 to move downwards. After the engaging member 310 is no longer restrained by the bushing 320, its second end retracts inwards and engages with the male connector body 110.

[0140] Therefore, in this embodiment of the locking assembly 300, the bushing 320 abuts against the second end of the engaging member 310 under the action of the first elastic member 340, causing the second end of the engaging member 310 to expand outward; the bushing 320 moves under the abutment of the male connector assembly 100, releasing the restriction on the engaging member 310, causing the second end of the engaging member 310 to retract inward under the action of the sleeve 330. The locking assembly 300 has a simple structure and requires no additional operation. By connecting and disconnecting the male connector assembly 100 and the female connector assembly 200, the locking state and unlocking state of the locking assembly 300 can be switched. The structure is simple and highly feasible.

[0141] Continue to refer to Figure 2 and Figure 3 A first inclined surface 321 is formed on the inner side of the end of the bushing 320 opposite to the first elastic member 340. Along the axial direction of the quick connector, from the first elastic member 340 to the bushing 320, the first inclined surface 321 slopes outward. Figure 2 In the orientation shown, the top of the inner side of the bushing 320 forms a first inclined surface 321. Along the axial direction from bottom to top, the first inclined surface 321 slopes outward.

[0142] The abutment protrusion 112 on the male connector body 110 forms a second inclined surface 1121, and the second inclined surface 1121 is located at the end of the abutment protrusion 112 that is away from the third inclined surface 1122. Figure 2 In the orientation shown, the second inclined plane 1121 is located below the third inclined plane 1122. (Combined) Figure 3 The abutting protrusion 112 also has a first peripheral side 1124, which is perpendicular to the first end face 1123 and connects the second inclined surface 1121 and the third inclined surface 1122.

[0143] When the male connector assembly 100 is connected to the female connector assembly 200, the second inclined surface 1121 abuts against the first inclined surface 321.

[0144] The contact between the second inclined surface 1121 and the first inclined surface 321 helps to improve the reliability of the contact between the male connector body 110 and the bushing 320.

[0145] Combination Figure 2 and Figure 8 In some embodiments, the engaging protrusion 313 forms an abutment surface 3132, which is located on the side of the fourth inclined surface 3131 facing the bushing 320. Figure 8 In the orientation shown, the abutment surface 3132 is located at the bottom end of the fourth inclined surface 3131. The abutment surface 3132 may be perpendicular to the axial direction of the quick connector.

[0146] When the male connector assembly 100 and the female connector assembly 200 are disconnected, the first elastic element 340 restores its deformation, causing the bushing 320 to move upward. The top of the bushing 320 moves away from the first elastic element 340 and abuts against the contact surface 3132, thereby restricting the bushing 320 from coming out of the locking member 310.

[0147] Continue to refer to Figure 8 The engaging protrusion 313 also forms a second peripheral side 314 and a fifth inclined surface 315. The second peripheral side 314 is connected to the bottom end of the abutment surface 3132 and is perpendicular to the abutment surface 3132. The fifth inclined surface 315 is connected to the bottom end of the second peripheral side 314, and the end of the fifth inclined surface 315 away from the second peripheral side 314 is inclined outward.

[0148] Combination Figure 2 , Figure 3 as well as Figure 8 When the male connector assembly 100 is connected to the female connector assembly 200, the bushing 320 separates from the abutment surface 3132 under the action of the male connector body 110 and moves along the second circumferential side surface 314 to abut against the fifth inclined surface 315. The fifth inclined surface 315 is provided so that when the male connector assembly 100 is separated from the female connector assembly 200, the bushing 320 can move smoothly from the fifth inclined surface 315 to the abutment surface 3132.

[0149] The following is combined Figure 2 and Figure 3 The locking and unlocking states of the locking component 300 are described in detail. For ease of description, the following is used: Figure 2 and Figure 3 The directions shown are described as follows: the positive direction of the Z-axis is "up", and the negative direction of the Z-axis is "down"; the side facing the center axis of the quick connector is "inner", and the side away from the center axis of the quick connector is "outer".

[0150] When the male connector assembly 100 is connected to the female connector assembly 200, the male connector body 110 is inserted downward into the second housing 213. The abutment protrusion 112 enters the inner side of the engaging member 310. The second inclined surface 1121 of the abutment protrusion 112 abuts against the first inclined surface 321 of the bushing 320, pushing the bushing 320 downward and compressing the first elastic member 340. The bushing 320 disengages from the abutment surface 3132, releasing the restriction on the top of the engaging member 310. The second elastic member 350 recovers its elastic deformation, pushing the sleeve 330 upward, causing the limiting groove 332 of the sleeve 330 to abut against the limiting protrusion 317. The sleeve 330 pushes the top of the engaging member 310 inward, causing the top of the engaging member 310 to retract inward. The engaging protrusion 313 of the engaging member 310 engages with the engaging groove 113, and the fourth inclined surface 3131 of the engaging protrusion 313 abuts against the third inclined surface 1122 of the abutting protrusion 112, thereby achieving the engagement of the top of the engaging member 310 with the male connector body 110, thereby restricting the male connector body 110 within the second housing 213, ensuring the stability of the connection between the male connector assembly 100 and the female connector assembly 200, and preventing the male connector assembly 100 from coming out of the female connector assembly 200.

[0151] When the male connector assembly 100 and the female connector assembly 200 are disconnected, the male connector body 110 moves upward and disengages from the second housing 213. After the bushing 320 loses the restraining force of the male connector body 110, it moves upward under the action of the first elastic member 340, and the top of the bushing 320 abuts against the abutting surface 3132. The limiting protrusion 317 of the engaging member 310 disengages from the limiting groove 332 and opens outward under the action of the bushing 320; the outer side of the engaging member 310 abuts against the sleeve 330, compressing the second elastic member 350 downward, causing the sleeve 330 to move downward.

[0152] The quick connector in this embodiment of the application achieves communication and isolation of the internal channels of the male connector assembly 100 and the female connector assembly 200 through a detachable connection. A locking assembly 300 is provided to lock the male connector assembly 100 and the female connector assembly 200, ensuring reliable connection between them. The locking assembly 300 includes a snap-fit ​​member 310, a bushing 320, and a sleeve 330. The first end of the snap-fit ​​member 310 is connected to the female connector assembly 200, and the second end of the snap-fit ​​member 310 is used to engage or disengage with the male connector assembly 100. The sleeve 330 is sleeved on the outside of the snap-fit ​​member 310 and elastically abuts against the female connector assembly 200. When the sleeve 330 abuts against the outside of the second end of the snap-fit ​​member, it causes the second end of the snap-fit ​​member 310 to retract inward and engage with the male connector assembly 100, thereby locking the male connector assembly 100 and the female connector assembly 200. The bushing 320 is located inside the engaging member 310 and elastically abuts against the inner side of the second end of the engaging member 310, so that the second end of the engaging member 310 opens outward, thereby allowing the male connector assembly 100 to be disengaged from the engaging member 310 and separated from the female connector assembly 200.

[0153] The locking assembly 300 of the quick connector in this embodiment utilizes a sleeve 330 and a bushing 320 to open and close the engaging member 310, thereby achieving both locking and unlocking functions. The structure is simple and highly feasible. Furthermore, the engaging member 310 experiences minimal wear, which helps ensure the reliability of the quick connector and extends its service life. The low wear of the engaging member 310 also facilitates the use of plastic components in the quick connector.

[0154] In some embodiments of this application, in the above-described structure of the quick connector, except for each sealing ring, other components can all be made of stainless steel to improve the corrosion resistance of the quick connector, especially when the fluid inside the quick connector is a corrosive liquid such as coolant.

[0155] Of course, the above is not a limitation on the materials used for quick couplings. Quick couplings can also be made of materials such as plastic.

[0156] In the above description, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0157] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A quick connector, characterized in that, include: Male connector assembly, female connector assembly and locking assembly; The male connector assembly and the female connector assembly are detachably connected; The locking assembly is sleeved on the outside of the male connector assembly and the female connector assembly, and the locking assembly includes: a locking member, a bushing, and a sleeve; The engaging member has a first end and a second end along the axial direction of the quick connector; the first end of the engaging member is connected to the outside of the female connector assembly. The sleeve is fitted onto the outside of the engaging member, the sleeve elastically abuts against the female connector assembly, and the sleeve is configured to move axially along the quick connector; when the sleeve abuts against the outside of the second end of the engaging member, the second end of the engaging member retracts inward and engages with the male connector assembly. The bushing is located inside the engaging member, and the bushing elastically abuts against the inner side of the second end of the engaging member, so that the second end of the engaging member opens outward, allowing the male connector assembly to disengage from the engaging member.

2. The quick connector according to claim 1, characterized in that, The locking assembly further includes a first elastic member, one end of which abuts against the outer side of the female connector assembly, and the other end of which abuts against the bushing. When the male connector assembly is disengaged from the female connector assembly, the end of the bushing facing away from the first elastic member abuts against the inner side of the second end of the engaging member; When the male connector assembly is connected to the female connector assembly, the bushing moves toward the first end of the engaging member and abuts against the male connector assembly.

3. The quick connector according to claim 2, characterized in that, The inner side of the bushing opposite to the end of the first elastic member forms a first inclined surface; along the axial direction of the quick connector, from the first elastic member to the bushing, the first inclined surface is inclined outward; The male connector assembly is provided with an abutting protrusion, which forms a second inclined surface; When the male connector assembly is connected to the female connector assembly, the second inclined surface abuts against the first inclined surface.

4. The quick connector according to claim 3, characterized in that, The male connector assembly forms an engaging groove on the side of the abutting protrusion opposite to the female connector assembly; the end of the abutting protrusion opposite to the second inclined surface forms a third inclined surface; The second end of the engaging member forms an engaging protrusion, and the engaging protrusion forms a fourth inclined surface; along the axial direction of the quick connector, from the first end to the second end of the engaging member, the fourth inclined surface is inclined inward; When the male connector assembly is connected to the female connector assembly, the engaging protrusion engages with the engaging groove, and the fourth inclined surface abuts against the third inclined surface.

5. The quick coupling according to any one of claims 1-4, characterized in that, The inner side of the first end of the engaging component is provided with a mating protrusion, which forms a mating inclined surface; Along the axial direction of the quick connector, from the first end to the second end of the engaging member, the mating bevel is inclined inward; The outer side of the female connector assembly is provided with a mating groove that mates with the mating protrusion.

6. The quick coupling according to any one of claims 1-4, characterized in that, The locking assembly further includes a second elastic element, one end of which is fixed to the outside of the female connector assembly, and the other end of which abuts against the sleeve; the second elastic element and the engaging element are spaced apart along the axial direction of the quick connector; The end of the sleeve opposite to the second elastic element abuts against the outer side of the engaging element.

7. The quick connector according to claim 6, characterized in that, The inner side of the sleeve has a first retaining ring portion, and the side of the first retaining ring portion opposite to the engaging member abuts against the second elastic member; A limiting groove is formed at the end of the sleeve opposite to the second elastic element; When the male connector assembly is connected to the female connector assembly, the limiting groove abuts against the outer side of the engaging member.

8. The quick coupling according to any one of claims 1-4, characterized in that, The engaging component includes multiple arc-shaped locking blocks and a first locking spring, the multiple arc-shaped locking blocks being arranged at intervals along the circumference of the quick connector; The first retaining ring is engaged at the first end of the outer side of the plurality of arc-shaped retaining blocks.

9. The quick coupling according to any one of claims 1-4, characterized in that, The male connector assembly includes a male connector body, a male connector elastic element, and a male connector moving element; The male connector body is constructed to form a first channel, and the male connector moving part and the male connector elastic element are both located within the first channel; the two ends of the male connector elastic element are respectively connected to the male connector moving part and the male connector body. When the male connector assembly is connected to the female connector assembly, the engaging member engages with the male connector body; the male connector moving part abuts against the female connector assembly and moves away from the female connector assembly to open the first channel; When the male connector assembly disengages from the female connector assembly, the male connector elastic element pushes the male connector moving element to form a sealing connection with the male connector body.

10. The quick connector according to claim 9, characterized in that, The female connector assembly includes a female connector body, a female connector mover, a female connector stator, and a female connector elastic element; The main body of the female connector forms a second channel, and the female connector stator is fixed in the second channel; the two ends of the elastic element of the female connector are respectively connected to the female connector stator and the female connector moving part; When the male connector assembly is connected to the female connector assembly, the female connector stator abuts against the male connector mover, and the female connector mover abuts against the male connector body, so that the second channel communicates with the first channel; When the male connector assembly disengages from the female connector assembly, the female connector elastic element pushes the female connector moving element to form a sealing connection between the female connector stator and the female connector body.

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