A detachable quick plug-in assembly

Abstract

A detachable quick-connect assembly includes a female connector, a male connector, a locking piece, and an unlocking buckle. The female connector includes a first cylinder and a second cylinder. The diameter of the first cylinder is larger than the diameter of the second cylinder. The male connector includes a snap ring. The locking piece includes a ring body, a pressing piece, and a first snapping piece. The first snapping piece includes a first snap joint. The unlocking buckle includes a fixing cylinder, a positioning cylinder, and an unlocking piece. The unlocking piece includes a connecting rod and a supporting head. When the supporting head is pressed when unlocking is required, the inclined surface of the supporting head abuts against the pressing piece, and the first snapping piece is tilted away from the male connector to disengage the first snap joint from the abutment with the snap ring of the male connector. This detachable quick-connect assembly achieves the purpose of fixedly connecting and disassembling the male connector and the female connector by designing the structures and matching relationships of the female and male connectors, as well as the locking piece and the unlocking piece.

Description

Technical Field

[0001] The invention relates to the technical field of connector components, and in particular to a detachable quick plug-in component. Background Art

[0002] As is known to all, the connection joints for connecting two fluid pipes in the current prior art all include a male joint and a female joint connected to the male joint. However, in some cases, the male joint and the female joint need to be disassembled or replaced, and the disassembly and replacement need to be convenient. When disassembly or replacement is not required, the male joint and the female joint need to be tightly connected and will not be automatically disconnected without the action of external force. Summary of the invention

[0003] In view of this, the present invention provides a detachable quick plug-in assembly that helps to achieve automation to meet the above-mentioned needs.

[0004] A detachable quick-connect assembly comprises a female connector, a male connector inserted in the female connector, a locking member accommodated in the female connector, and an unlocking buckle arranged at the end of the female connector. The female connector comprises a first cylinder and a second cylinder connected to the first cylinder. The diameter of the first cylinder is greater than the diameter of the second cylinder. The male connector comprises a snap ring. The locking member is accommodated in the first cylinder and comprises a ring body, two pressing members arranged on the ring body, and at least two first snap members arranged on the ring body. The ring body abuts against a step formed by the first and second cylinders. The angle between the extending direction of the pressing member and the axial direction of the first cylinder has an acute angle and the pressing member extends toward the unlocking buckle. The first snap member comprises a first connecting member extending from the ring body along the axial direction of the first cylinder, and a first snap joint arranged at the end of the first connecting member and extending toward the central axis of the first cylinder. The unlocking buckle comprises a fixed cylinder fixed in the first cylinder, a positioning cylinder connected to the fixed cylinder along the axial direction of the first cylinder, and two unlocking members arranged on the fixed cylinder. The fixed cylinder is provided with at least two avoidance holes. When the male connector is inserted into the female connector, the first clamping connector is clamped on the clamping ring through the avoidance holes. The unlocking member comprises a connecting rod arranged on the fixed cylinder, and a supporting head arranged at one end of the connecting rod. The supporting head has an inclined surface on the side facing the second cylinder in the cross section along the central axis of the first cylinder. When the unlocking member is in a free state, the supporting head and the pressing member are spaced apart in a direction perpendicular to the central axis of the first cylinder. When unlocking is required, the male connector presses against the ring body under the action of external force so that it presses against the step formed by the first and second cylinders, and when the supporting head of the unlocking member is pressed, the inclined surface of the supporting head presses against the pressing member, and the first clamping member is tilted away from the male connector to make the first clamping member break away from the contact with the clamping ring of the male connector.

[0005] Further, in a cross section along the axial direction of the first cylinder, the first connecting member is a right-angled trapezoid, and the right-angled side of the right-angled trapezoid faces the central axis of the first cylinder and is parallel to the central axis.

[0006] Furthermore, the locking member also includes two second snap-on members, and the first and second snap-on members are arranged at the same interval angle around the central axis of the ring body, and the second snap-on member includes a second connecting member extending from the ring body along the axial direction of the first cylinder, and a second clamping joint arranged at the end of the second connecting member and extending toward the central axis of the first cylinder.

[0007] Furthermore, the two first locking members are respectively arranged to overlap with the two pressing members in the direction along the central axis of the first cylinder, and the two second locking members are arranged to be staggered with the two pressing members in the direction along the central axis of the first cylinder.

[0008] Furthermore, the abutting surface between the first clamping joint of the first clamping member and the clamping ring of the male joint is perpendicular to the central axis of the first cylinder.

[0009] Furthermore, the angle between the abutting surface where the second clamping joint of the second clamping member abuts against the clamping ring of the male joint and the central axis of the first cylinder has an acute angle, and after the male joint is inserted into the locking member, the abutting surface extends in a direction away from the clamping ring.

[0010] Furthermore, an introduction slope is arranged on the end surface of the first clamping joint along the central axis of the first cylinder.

[0011] Furthermore, at least three insertion holes are arranged on the side wall of the first cylinder, and at least three insertion blocks respectively matched with the insertion holes are arranged on the outer side wall of the fixed cylinder. When the fixed cylinder is inserted into the first cylinder, the insertion blocks are inserted into the corresponding insertion holes.

[0012] Furthermore, a notch is provided on the side wall of the fixing tube, and when the notch is closed, the fixing tube with the plug is inserted into the first tube body of the female connector, and when the notch is restored to its original state, the plug is inserted into the insertion hole.

[0013] Compared with the prior art, the detachable quick plug-in assembly provided by the present invention is designed through the structure and matching relationship of the female and male connectors, as well as the locking and unlocking parts. Specifically, a step formed by the first and second cylinders is provided on the female connector, the locking part is provided with a pressing part and a first snapping part, a supporting head is provided on the unlocking part, and a clamping ring is provided on the male connector. When the male connector is connected to the locking part, the first snapping part is clamped on the clamping ring. When the male connector is pulled, the locking part can prevent the male connector from being pulled out due to the restriction of the unlocking part fixed on the female connector, so as to achieve the purpose of the male connector and the female connector being tightly connected. At the same time, when the male connector is not subjected to external force, the end face of the supporting head is arranged opposite to the end face of the pressing part in the direction perpendicular to the central axis of the first cylinder instead of being staggered. When the male connector presses against the locking member under the action of external force, the end face of the supporting head and the end face of the pressing member are offset and the locking member presses against the step formed by the first and second cylinders. Then, the supporting head is pressed to make the inclined surface of the supporting head press against the side face of the pressing member, thereby causing the pressing member to rotate, thereby driving the first fastener to rotate, so that the first fastener of the first fastener is disengaged from the clamping ring of the male connector, and then the male connector can be pulled out, thereby achieving the purpose of disassembling the male connector and the female connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic structural diagram of a detachable quick plug-in assembly provided by the present invention.

[0015] Figure 2 for Figure 1 A schematic cross-sectional structure diagram of a detachable quick plug-in assembly.

[0016] Figure 3 for Figure 1 A schematic structural diagram of a locking member of a detachable quick plug-in assembly.

[0017] Figure 4 for Figure 3 The edge of the lock piece Figure 2 Schematic diagram of the cross-sectional structure perpendicular to the cross-sectional direction

[0018] Figure 5 for Figure 1 A schematic structural diagram of an unlocking buckle of a detachable quick plug-in assembly. DETAILED DESCRIPTION

[0019] The specific embodiments of the present invention are further described in detail below. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0020] like Figures 1 to 5As shown, it is a schematic diagram of the structure of the detachable quick plug assembly provided by the present invention. The detachable quick plug assembly includes a female connector 10, a male connector 20 inserted in the female connector 10, a locking member 30 accommodated in the female connector 10, and an unlocking buckle 40 arranged at the end of the female connector 10. It can be imagined that the detachable quick plug assembly also includes some other functional modules, such as an installation assembly for installing the plug assembly to a car or truck, a pipeline connection assembly, etc., which are well known to those skilled in the art and will not be described in detail here.

[0021] The female connector 10 includes a first cylinder 11, a second cylinder 12 connected to the first cylinder 11, and a set of sealing components 13 arranged in the second cylinder 12. The inner diameter of the first cylinder 11 is larger than the inner diameter of the second cylinder 12 to form a step at the intersection of the first and second cylinders 11 and 12. The function of the step will be described in detail below. The first cylinder 11 is respectively provided with two through holes 111 on both sides of the radial direction, and the through holes 111 are used to cooperate with the unlocking member 40, and the cooperation relationship will be described in detail below. A plurality of plug holes 112 are also provided on the circumferential side wall of the first cylinder 11. The plurality of plug holes 112 are arranged at intervals along the circumferential direction. The function of the plug holes 112 is to fix the unlocking buckle 40, and the specific structure will be described in detail together with the unlocking buckle 40 below. The second cylinder 12 is used to empty the sealing component 13. The sealing component 13 includes two sealing rings 131 and an isolation ring 132 arranged between the two sealing rings 131. The sealing assembly 13 includes two sealing rings 131 for improving the sealing performance. The isolation ring 132 is used to ensure that the two sealing rings 131 will not be deformed when subjected to pressure or when the male connector 20 is inserted. It can be imagined that the female connector 10 also includes a plug for connecting to a pipeline, a barb provided on the plug, and a sealing ring, which are prior arts and will not be described in detail here.

[0022] The male connector 20 is inserted into the female connector 10, and a clamping ring 21 is provided on the outer wall thereof. The clamping ring 21 is used to cooperate with the locking member 30 to fix the connection between the male connector 20 and the female connector 10. The clamping ring 21 is a circular ring structure, and its axial thickness can be designed according to actual needs, which will not be described in detail here.

[0023] The locking member 30 is accommodated in the first cylinder 11 and includes a ring body 31, two pressing members 32 arranged on the ring body 31, two first snapping members 33 arranged on the ring body 31, and two second snapping members 34 arranged on the ring body 31 and spaced apart from the first snapping members 33. The inner diameter of the ring body 31 is larger than the inner diameter of the second cylinder 12 and can abut on the steps formed by the first and second cylinders 11 and 12, that is, when the male connector 20 is pressed toward the female connector 10, the ring body 21 abuts on the steps formed by the first and second cylinders 11 and 12. The pressing member 32 is used to press against the corresponding part of the unlocking buckle 40 to make it rotate. The angle between the extending direction of the pressing member 32 and the axial direction of the first cylinder 11 is an acute angle, that is, the extending direction of the pressing member 32 is not parallel to the radial direction of the ring body 31. When the locking member 30 is inserted into the first cylinder 31, the pressing member 32 extends toward the unlocking buckle 40. The pressing member 32 has two and is disposed at both ends of the ring body 31 in the diameter direction. The first clip members 33 have two, and the two first clip members 33 are respectively arranged to overlap with the two pressing members 32 in the direction along the central axis of the first cylinder 11. The first clip member 33 includes a first connecting member 331 extending from the ring body 31 along the axial direction of the first cylinder 11, a first clamping joint 332 disposed at the end of the first connecting member 331 and extending toward the central axis of the first cylinder 11, and a right-angle groove 333 disposed at the intersection of the first connecting member 331 and the first clamping joint 332. In the cross section along the axial direction of the first cylinder 11, the first connecting member 331 is a right-angled trapezoid, and the right-angled side of the right-angled trapezoid faces the central axis of the first cylinder 11 and is parallel to the central axis. Designing the first connecting member 331 into the above-mentioned structure helps to improve the strength of the first connecting member 331. The first clamping joint 332 extends in the direction of the central axis of the first cylinder 11 to form a hook-shaped structure with the first connecting member 331. When the male connector 20 is inserted, the clamping ring 21 is clamped on the first clamping joint 332. In order to achieve the purpose of clamping, the abutting surface of the first clamping joint 332 of the first clamping member 33 and the clamping ring 21 of the male connector 20 is perpendicular to the central axis of the first cylinder 11. The right-angle groove 333 is provided on the side of the inner side wall of the first clamping member 33 facing the first cylinder 11. When the locking member 30 is accommodated in the first cylinder 10 and the female and male connectors 10, 20 are filled with a medium such as oil or water, the female and male connectors 10, 20 will tend to separate under the pressure of the medium. At this time, the right-angle groove 333 will abut against the corresponding position of the unlocking buckle 40, thereby fixing the locking member 30 in the first cylinder 11.In order to facilitate the insertion of the male connector 20, an introduction slope is provided on the end surface of the first clamping connector 332 along the central axis of the first cylinder 11. The first and second clamping members 33 and 34 are arranged at equal intervals around the central axis of the ring body 31. The second clamping member 34 has a structure substantially the same as that of the first clamping member 33, and also includes a second connecting member 341 and a second clamping connector 342 arranged on the second connecting member 341. The only difference is that the angle between the abutting surface of the second clamping connector 342 abutting against the clamping ring 21 of the male connector 20 and the central axis of the first cylinder 11 is an acute angle, and after the male connector 20 is inserted into the locking member 30, the abutting surface extends in a direction away from the clamping ring 21. The working principle of the second clamping connector 342 being arranged in such a structure will be described in detail below.

[0024] The unlocking buckle 40 includes a fixed cylinder 41 fixed in the first cylinder 11, a positioning cylinder 42 connected to the fixed cylinder 41 along the axial direction of the first cylinder 11, and two unlocking pieces 43 arranged on the fixed cylinder 41. The fixed cylinder 41 is inserted into the first cylinder 11. In order to fix the fixed cylinder 41, at least three plug blocks 411 are arranged on the outer wall of the fixed cylinder 41, which are respectively matched with the plug holes 112. In order to insert the fixed cylinder 41 into the first cylinder 11, a notch 412 is opened on the side wall of the fixed cylinder 41. When the notch 412 is closed, the fixed cylinder 41 with the plug block 411 is inserted into the first cylinder 11 of the female connector 10, and when the notch 412 is restored to its original state, the plug block 411 is inserted into the plug hole 112. At least two avoidance holes 413 are also arranged on the fixed cylinder 41. When the male connector 20 is inserted into the female connector 10, the first clamping joint 332 passes through the avoidance hole 413 and is clamped on the clamping ring 21. Therefore, the size of the avoidance hole 413 is based on the first clamping joint 332 passing through and being clamped on the clamping ring 21. The positioning cylinder 42 is inserted into the first cylinder 11, and it can also be inserted into the second cylinder 12, so the outer diameter of the positioning cylinder 42 is equivalent to the inner diameter of the second cylinder 12. The free end of the positioning cylinder 42 abuts against a sealing ring 131, thereby fixing the sealing assembly 13 in the second cylinder 12. The inner diameter of the positioning cylinder 42 is smaller than the inner diameter of the fixing cylinder 41, so that a step is formed between the positioning cylinder 42 and the fixing cylinder 41. When the male connector 20 is inserted into the female connector 10, the clamping ring 21 of the male connector 20 is located between the first clamping joint 332 and the step between the positioning cylinder 42 and the fixing cylinder 41, thereby fixing the position of the male connector 20 along its axial direction. The unlocking member 43 includes a connecting rod 431 disposed on the fixed cylinder 41, and a supporting head 432 disposed at one end of the connecting rod 431. The connecting rod 431 can be an L-shaped structure, one end of which is fixed on the fixed cylinder 41, and the other end is fixed on the supporting head 432. Therefore, when the supporting head 432 is pressed and loses external force, it can be restored to its original position by the restoring action of the connecting rod 431. On the cross section along the central axis of the first cylinder 11, the supporting head 432 has a slope 433 on the side facing the second cylinder 12. The function of the slope 433 is that when the supporting head 432 is gradually pressed toward the pressing member 32 under the action of external force, the slope 433 causes the pressing member 32 to rotate around the ring body 31, thereby causing the first snap member 33 to rotate, thereby causing the first snap joint 332 to be disengaged from the snap ring 21, and then the male joint 20 can be pulled out.In order to enable the supporting head 432 to achieve the above function, when the unlocking member 40 is in a free state, the supporting head 432 is spaced apart from the pressing member 32 in a direction perpendicular to the central axis of the first cylinder 11 to avoid interfering with the locking member 30 itself.

[0025] After the male connector 20 is inserted and the medium is introduced, the female and male connectors 10 and 20 will move in the direction of separation from each other under the action of the medium pressure, and at this time, the right-angle groove 333 of the first clip 33 will abut against the unlocking buckle 40, and the ring body 31 will be separated from the step formed with the first and second cylinders 11 and 12. At this time, all or part of the supporting head 432 is located directly above the pressing member 32. Therefore, when the supporting head 432 is pressed, it will not drive the pressing member 32 to rotate, thereby preventing the pressing member 32 from being rotated and opening the first clip 33 in case of misoperation.

[0026] When unlocking is required, the male connector 20 needs to press against the ring body 31 under the action of external force so that it presses against the step formed by the first and second cylinders 11 and 12 so that the inclined surface 433 of the supporting head 432 is staggered with the pressing member 32, so that when the supporting head 432 of the unlocking member 40 is pressed, the inclined surface 433 of the supporting head 432 presses against the pressing member 32, so that the first clip 33 is tilted away from the male connector 20 so that the first clip 332 is separated from the contact with the clamping ring 21 of the male connector 20. Therefore, in order for the first clip 33 to be tilted when the pressing member 32 is pressed, the two pressing members 32 are respectively arranged with the two first clips 33 along the central axis of the first cylinder 11. At the same time, since the angle between the contact surface of the second clamping joint 342 against the clamping ring 21 of the male joint 20 and the central axis of the first cylinder 11 is an acute angle, that is, it is an inclined surface, when the first clamping joint 332 is disengaged from the clamping ring 21 and the male joint 20 is pulled out, the second clamping joint 342 is stretched open so that the male joint 20 can be pulled out.

[0027] In order to locate the positional relationship between the unlocking member 40 and the locking member 30, a guide block 334 is provided on the inner side of the two first locking members 33 spaced apart from the pressing member 32, and two guide grooves 421 respectively matching with the guide blocks 334 are provided on the outer wall of the positioning tube 42.

[0028] Compared with the prior art, the detachable quick plug-in assembly provided by the present invention is designed through the structure and matching relationship of the female and male connectors 10, 20, the locking member 30 and the unlocking member 40, specifically, a step formed by the first and second cylinders 11, 12 is provided on the female connector 10, the locking member 30 is provided with a pressing member 32 and a first snap member 33, the unlocking member 40 is provided with a supporting head 432, and a snap ring 21 is provided on the male connector 20. When the male connector 20 is connected to the locking member 30, the first snap member 33 is snapped on the snap ring 21, and when the male connector 20 is pulled, the locking member 30 can prevent the male connector 20 from being pulled out due to the restriction of the unlocking member 40 fixed on the female connector 10, so as to achieve the purpose of tightly connecting the male connector 20 with the female connector 10. At the same time, when the male connector 20 is not subjected to external force, the end face of the supporting head 432 and the end face of the pressing member 32 are arranged opposite to each other in a direction perpendicular to the central axis of the first cylinder 10 instead of being staggered. When the male connector 20 presses against the locking member 32 under the action of external force, the end face of the supporting head 432 and the end face of the pressing member 32 are staggered and the locking member 32 presses against the step formed by the first and second cylinders 11 and 12, and then the supporting head 432 is pressed, so that the inclined surface 433 of the supporting head 432 presses against the side of the pressing member 32, so that the pressing member 32 rotates, and then drives the first snap member 33 to rotate, so that the first snap member 332 of the first snap member 33 is disengaged from the snap ring 21 of the male connector 20, and then the male connector 20 can be pulled out, so as to achieve the purpose of disassembling the male connector 20 and the female connector 10.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention is included in the scope of the claims of the present invention.

Claims

1. A detachable quick plug assembly, characterized in that: The detachable quick plug-in assembly includes a female connector, a male connector inserted in the female connector, a locking member accommodated in the female connector, and an unlocking buckle arranged at the end of the female connector. The female connector includes a first cylinder and a second cylinder connected to the first cylinder, the diameter of the first cylinder is larger than the diameter of the second cylinder, the male connector includes a snap ring, the locking member is accommodated in the first cylinder and includes a ring body, two pressing members arranged on the ring body, and two first snap members arranged on the ring body. The ring body abuts against the step formed by the first and second cylinders, the angle between the extension direction of the pressing piece and the axial direction of the first cylinder has an acute angle and the pressing piece extends toward the unlocking buckle, the first buckle comprises a first connecting piece extending from the ring body along the axial direction of the first cylinder, and a first clamping joint arranged at the end of the first connecting piece and extending toward the central axis of the first cylinder, the unlocking buckle comprises a fixing cylinder fixed in the first cylinder, a positioning cylinder connected to the fixing cylinder along the axial direction of the first cylinder, and two fixing cylinders arranged on the fixing cylinder The unlocking member on the fixing cylinder is provided with at least two avoidance holes. When the male connector is inserted into the female connector, the first clamping connector passes through the avoidance holes and is clamped on the clamping ring. The unlocking member includes a connecting rod provided on the fixing cylinder, and a supporting head provided at one end of the connecting rod. The supporting head has an inclined surface on the side facing the second cylinder in the cross section along the central axis of the first cylinder. When the unlocking member is in a free state, the supporting head and the pressing member are spaced apart in a direction perpendicular to the central axis of the first cylinder. When unlocking is required, the male connector The ring body is pressed against the step formed by the first and second cylinders under the action of external force, and when the supporting head of the unlocking member is pressed, the inclined surface of the supporting head presses against the pressing member, and the first snap member is tilted away from the male connector to make the first snap connector break away from the contact with the snap ring of the male connector. In the axial section along the first cylinder, the first connecting member is a right-angled trapezoid, and the right-angled side of the right-angled trapezoid faces the central axis of the first cylinder and is parallel to the central axis. An introduction slope is arranged on the end face of the first snap connector along the central axis of the first cylinder.

2. The detachable quick-connect assembly according to claim 1, characterized in that: The locking member also includes two second snap-on members, and the first and second snap-on members are arranged at the same interval angle around the central axis of the ring body, and the second snap-on member includes a second connecting member extending from the ring body along the axial direction of the first cylinder, and a second clamping joint arranged at the end of the second connecting member and extending toward the central axis of the first cylinder.

3. The detachable quick-connect assembly according to claim 2, characterized in that: The two first locking members are respectively arranged to overlap with the two pressing members in the direction along the central axis of the first cylinder, and the two second locking members are arranged to be staggered with the two pressing members in the direction along the central axis of the first cylinder.

4. The detachable quick-connect assembly according to claim 2, characterized in that: The abutting surface where the first clamping joint of the first clamping member abuts against the clamping ring of the male joint is perpendicular to the central axis of the first cylinder.

5. The detachable quick-connect assembly according to claim 2, characterized in that: The angle between the abutting surface where the second clamping joint of the second clamping member abuts against the clamping ring of the male joint and the central axis of the first cylinder has an acute angle, and after the male joint is inserted into the locking member, the abutting surface extends in a direction away from the clamping ring.

6. The detachable quick-connect assembly according to claim 2, characterized in that: A guide block is arranged on the inner side of the second fastener, and two guide grooves respectively matched with the guide block are arranged on the outer side wall of the positioning cylinder.

7. The detachable quick-connect assembly according to claim 1, characterized in that: At least three insertion holes are arranged on the side wall of the first cylinder, and at least three insertion blocks respectively matched with the insertion holes are arranged on the outer side wall of the fixed cylinder. When the fixed cylinder is inserted into the first cylinder, the insertion blocks are inserted into the corresponding insertion holes.

8. The detachable quick-connect assembly according to claim 7, characterized in that: A notch is provided on the side wall of the fixing tube. When the notch is closed, the fixing tube with the plug is inserted into the first tube body of the female connector. When the notch is restored to its original state, the plug is inserted into the insertion hole.

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