Universal quick connector

Abstract

The utility model relates to a universal quick connector, which comprises a male connector, a female connector and at least one restraining piece, and the limiting part is constructed to limit the displacement direction of at least one of the first valve plug of the male joint or the second valve plug of the female joint in a shape matching manner, so that the first valve plug or the second valve plug strictly displaces in the axial direction without deviation. By means of the universal quick coupling of the present application, it is possible to reduce the risk of leakage of the universal quick coupling by ensuring strict axial movement of the corresponding valve plug and additionally ensure the stability of the sealing element by means of additional retention of the sealing element in the connected state of the coupling, so that the stability and sealing performance of the universal quick coupling are ensured.

Description

Technical Field

[0001] The utility model generally relates to a universal quick connector. Background Art

[0002] It is known that a universal quick connector (abbreviated as UQD in English) is used as a connecting device between the ends of different fluid pipelines, such as a liquid connector between the ends of different fluid pipelines of a liquid cooling device, for example, for quickly disconnecting and / or connecting liquid pipelines, such as the connection / disconnection between a liquid pipeline in a bracket of a computing device and an external liquid pipeline. In this case, it is necessary to ensure that the liquid flow in the UQD is cut off when the connection is disconnected, but no liquid leakage occurs.

[0003] In addition, in an actual layout, the UQD may be located at the rear or inside of the device, which makes any failure of the UQD relatively concealed and difficult to detect. In the case of fluid leakage such as liquid leakage in the UQD, other components in the device are easily damaged. Summary of the Utility Model

[0004] The utility model relates to a universal quick connector, which comprises a male connector including a first end holding member, a first elastic member, a first valve plug, and a male connector housing. The inner wall of the end of the male connector housing inserted into the female connector includes an insertion portion with a thickened portion extending radially inward. The first end holding member is fixedly connected to one end of the male connector housing. The first valve plug includes a head received at the thickened portion in the disconnected state of the universal quick connector, and a body portion. The first elastic member is held between a second abutting portion of the body portion and a first abutting portion of the first end holding member, and a first sealing member is circumferentially arranged around the head. And a female connector, including a second end holding member and a support plate removably and fixedly connected to the female connector housing, a second valve plug, a second elastic member held between the second valve plug and the support plate, and a support rod fixedly connected to the support plate and an intermediate support member supporting the support head. The second valve plug is configured to be hermetically held between the female connector housing and the support head in the disconnected state of the universal quick connector. A second sealing member is circumferentially arranged on the support head. The universal quick connector further includes at least one restraint member configured to define the axial displacement direction of at least one of the first valve plug or the second valve plug by shape fit.

[0005] Optionally, a third seal is provided on the inner wall of the female connector housing for sealing engagement with the outer wall of the second valve plug in the disconnected state of the male and female connectors, and / or a fourth seal is provided on the inner wall of the female connector housing on the side of the third seal opposite to the second end holding member.

[0006] Optionally, the male connector includes the restraining member configured as a first sleeve member, the first sleeve member being configured as a hollow cylinder and being tightly inserted between the outer side of the first elastic member and the inner wall of the male connector housing in a form-fitting manner.

[0007] Optionally, the length of the first sleeve member is selected to be equal to the length between the first abutment portion and the thickened portion of the first end retainer, and / or the thickness of the first sleeve member is selected to be equal to the thickness between the outer side of the first elastic member and the inner wall of the male connector housing excluding the thickened portion.

[0008] Optionally, the first sleeve member also includes a reduction portion over at least a portion of its length, the reduction portion being constructed so as to be radially reduced inwardly relative to other portions of the first sleeve member, and being positioned facing the side of the first valve plug held away from the first end portion by the second abutment portion when the male connector and the female connector are disconnected, the reduction portion being constructed to extend along the entire circumferential direction of the first sleeve member or a portion of the circumferential direction, and the inner diameter of the reduction portion being equivalent to the inner diameter of the male connector housing at the thickened portion and / or the reduction portion being constructed to surround the first seal or both the first seal and the second seal that abut against and retain the first valve plug when the male connector and the female connector are connected, and / or one or more openings are respectively provided at the joint between the reduction portion and the rest of the first sleeve member and at the reduction portion itself.

[0009] Optionally, the first sleeve member includes a rib protruding radially inwardly, and the rib is positioned to face the side of the first valve plug that is away from the first end retainer from the second abutment portion when the male connector and the female connector are disconnected, the inner diameter of the circle formed by the free end of the rib is selected to be equal to the inner diameter of the male connector housing at the thickened portion, and / or the rib is constructed to abut against the first seal or both the first seal and the second seal that retain the first valve plug when the male connector and the female connector are connected.

[0010] Optionally, the female connector comprises a restraining member configured as a second sleeve member, the second sleeve member being configured to be cylindrical and held inside the second elastic member, wherein an inner diameter of the second sleeve member is equal to an outer diameter of the support rod.

[0011] Optionally, the second valve plug also includes a second limiting portion cooperating with the supporting head to prevent the second valve plug from moving in a direction from the second end retaining member to the supporting head to be disengaged from the supporting head, and the second sleeve member includes at least one rib on its exterior, the rib being constructed to be inscribed in an inner wall at the second limiting portion of the second valve plug when the second limiting portion of the second valve plug moves to face the second sleeve member.

[0012] Optionally, the first valve plug includes at least one first guiding portion extending axially on its outer side, and the inner wall of the insertion portion of the male connector includes a restraint member configured as a first guiding groove that is in shape fit with the first guiding portion and independent of the thickening portion. The first guiding groove protrudes radially inwards from the inserted wall and the protruding height is selected such that it contacts and abuts against the outer peripheral surface of the first valve plug.

[0013] Optionally, the second valve plug includes at least one second guiding portion located on the outer side of the second valve plug and protruding and extending, and the inner wall of the female connector housing includes a restraint member configured as a second guiding groove that is in shape fit with the second guiding portion. The second guiding portion of the second valve plug is configured to be aligned with the second guiding groove and is guided to move axially along it.

[0014] With the universal quick connector of the present application, it is possible to reduce the leakage risk of the universal quick connector by ensuring strict axial movement of the corresponding valve plugs and additionally ensure the stability of the seal by virtue of the additional retention of the seal in the connected state of the connector, so as to ensure the stability and sealing performance of the universal quick connector. In addition, other advantages and beneficial aspects of the present application will be obtained with reference to the detailed description below in the specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other advantages and aspects of the present application will become more apparent with reference to the following detailed description with reference to the accompanying drawings, in which:

[0016] Figure 1A shows an overall external schematic view of the universal quick connector according to the first embodiment of the present application in the connected state and Figure 1B shows an overall perspective view of the universal quick connector according to the first embodiment of the present application in the disconnected state;

[0017] Figure 2A shows an overall external schematic view of the universal quick connector according to the second embodiment of the present application in the connected state and Figure 2B shows an overall perspective view of the universal quick connector according to the second embodiment of the present application in the disconnected state;

[0018] Figure 3 shows an exploded schematic view of the male connector of the universal quick connector according to the first embodiment of the present application;

[0019] Figure 4 shows an exemplary detailed schematic view of the first sleeve member 302 of the male connector that can be used for the universal quick connector according to the first embodiment of the present application;

[0020] Figure 5 shows an exploded schematic view of the female connector of the universal quick connector according to the first embodiment of the present application;

[0021] Figure 6Shows an exemplary detailed schematic diagram of a second sleeve member 304 of a female joint that can be used for a general quick connector according to a first embodiment of the present application;

[0022] Figure 7 Shows an exploded schematic diagram of a male joint of a general quick connector according to a second embodiment of the present application;

[0023] Figure 8 Shows an exploded schematic diagram of a female joint of a general quick connector according to a second embodiment of the present application;

[0024] Figure 9 Shows an axial cross-sectional schematic diagram of a general quick connector according to a first embodiment of the present application in a disconnected state;

[0025] Figure 10 Shows an axial cross-sectional schematic diagram of a general quick connector according to a first embodiment of the present application in a connected state;

[0026] Figure 11A and 11B Shows cross-sectional schematic diagrams of a female joint of a general quick connector according to a first embodiment of the present application in disconnected and connected states respectively, and 11C shows Figure 11B an enlarged schematic diagram of the circled area in;

[0027] Figure 12A and 12B Shows cross-sectional schematic diagrams of a male joint of a general quick connector according to a first embodiment of the present application in disconnected and connected states respectively, and 12C shows Figure 12B an enlarged schematic diagram of the circled area in;

[0028] Figure 13 Shows a cross-sectional schematic diagram of a general quick connector according to a second embodiment of the present application in a disconnected state;

[0029] Figure 14 Shows a cross-sectional schematic diagram of a general quick connector according to a second embodiment of the present application in a connected state;

[0030] Figure 15A and 15B Shows cross-sectional schematic diagrams of a male joint of a general quick connector according to a second embodiment of the present application in disconnected and connected states respectively; and

[0031] Figure 16A and 16B Shows cross-sectional schematic diagrams of a female joint of a general quick connector according to a second embodiment of the present application in disconnected and connected states respectively. Detailed Description of the Invention

[0032] In the context of the present application, like reference numerals denote like or similar elements, parts, or steps.

[0033] First, in the context of the present application, the axial direction represents the direction along which fluid flows in a general quick connector. The circumferential direction represents the direction around the general quick connector and is perpendicular to the axial direction. The radial direction represents the direction perpendicular to both the axial direction and the circumferential direction, and the outer side represents the side that is further away from the central axis parallel to the axial direction of the general quick connector, and the inner side represents the side that is closer to the central axis parallel to the axial direction of the general quick connector.

[0034] Figure 1A FIG. shows an overall external schematic view of a general quick connector according to a first embodiment of the present application in a connected state, and Figure 1B FIG. shows an overall perspective view of a general quick connector according to a first embodiment of the present application in a disconnected state. Further, Figure 3 FIG. shows an exploded schematic view of the male connector of a general quick connector according to a first embodiment of the present application, and Figure 5 FIG. shows an exploded schematic view of the female connector of a general quick connector according to a first embodiment of the present application. Therefore, reference will be made to this Figure 1A - 1B as well as Figure 3 and 5 to describe the structure of the general quick connector according to the first embodiment of the present application. Further, Figure 9 FIG. shows an axial cross-sectional schematic view of a general quick connector according to a first embodiment of the present application in a disconnected state; Figure 10 FIG. shows an axial cross-sectional schematic view of a general quick connector according to a first embodiment of the present application in a connected state; Figure 11A and 11B FIG. shows cross-sectional schematic views of the female connector of a general quick connector according to a first embodiment of the present application in disconnected and connected states respectively, and 11C shows an enlarged schematic view of the circled area in Figure 11B ; and Figure 12A and 12B FIG. shows cross-sectional schematic views of the male connector of a general quick connector according to a first embodiment of the present application in disconnected and connected states respectively, and 12C shows an enlarged schematic view of the circled area in Figure 12B .

[0035] As Figure 1A - 1BAs shown, in the first embodiment of the present application, the universal quick connector includes a male connector 10 and a female connector 20. As will be understood, it is conceivable that the male connector 10 and the female connector 20 are respectively connected to different ends of the fluid pipeline and the male connector 10 is connected to the female connector 20 by being removably inserted into the female connector 20. As will be understood, the male connector 10 can be disconnected from the female connector 20 and removed when necessary. Therefore, the male connector 10 includes a first pipeline end 100 that is sealedly connected (permanently or removably) to one end of an appropriate fluid pipeline. Accordingly, the female connector 20 includes a second pipeline end 200 that is sealedly connected (permanently or removably) to another end of an appropriate fluid pipeline. The construction of the first pipeline end 100 and the second pipeline end 200 can be implemented using any appropriate technology and design in the prior art without departing from the scope of the utility model and therefore will not be additionally described here.

[0036] like Figure 3 As shown in further detail, according to the first embodiment of the present application, the male connector 10 at least includes a first end retainer 102 , a first elastic member 104 , a first valve plug 106 , and a male connector housing 108 .

[0037] like Figure 3 As shown in FIGS. 9-10 , the male connector housing 108 is hollow to accommodate the first end retainer 102, the first elastic member 104 and the first valve plug 106 in its hollow space and includes an insertion portion 110 configured to be inserted into the female connector 20. Further, in the first embodiment of the present application, the inner wall of the insertion portion 110 at its end away from the first end retainer 102 includes a thickened portion 112 extending radially inward, so that the inner diameter of the hollow of the insertion portion 110 at the thickened portion 112 is reduced. More preferably, the thickened portion 112 includes a constant thickened portion 112-1 and a gradually thickened portion 112-2 so that the inner diameter of the hollow at the insertion portion 110 gradually decreases from the larger diameter on the side away from the end through the gradually thickened portion 112-2 to the small diameter of the constant thickened portion 112-1. It can be foreseen that such a gradually thickened portion 112-2 forms a slope to facilitate the sealing of the first valve plug 106. It is contemplated that the hollow inner diameter of the pin housing 108 maintains a substantially constant inner diameter except for the thickened portion 112 .

[0038] The first end retainer 102 is hollow and is configured to be fixedly connected to (e.g., by means of a snap ring such as (e.g., Figure 3In (as shown), in the side of the male joint housing 108 opposite to the insertion part (by any suitable fixing means such as gluing), the first end holding member 102 includes a first abutting part 114 extending radially inwards for contacting and abutting against one end of the first elastic member 104. Of course, the structure of the first abutting part is only exemplary, and the first end holding member can include any other structure capable of abutting against one end of the first elastic member 104 without departing from the scope of the present application.

[0039] As Figure 3 shown, the first valve plug 106 includes a solid head 116 for being received at the thickened part 112, especially at the constant thickened part, in the disconnected state of the male joint 10 and the female joint 20; and a body part 118 axially extending from the head, wherein on the side of the body part 118 opposite to the head 116, a second abutting part 120 extending radially outwards from the body part 118 is provided for holding and abutting against the other end of the first elastic member 104. The structure of the second abutting part is also exemplary, and those skilled in the art can conceive of any possible structure capable of abutting against one end of the first elastic member without departing from the scope of the present application. For example, the second abutting part can be arranged inside the body and extend radially inwards inside the body such that the first elastic member can be sleeved on the first valve plug and its end abuts against the second abutting part (not shown).

[0040] Further, a first seal 122 is arranged around the head 116, such as an O-ring seal, to be able to abut against the inner wall of the insertion part of the male joint housing 108, especially the inner wall at the thickened part 112, when the universal quick connector is in the disconnected state, so as to ensure sealing such that fluid does not flow out through the male joint 10. Further, optionally, the body part 118 of the first valve plug 106 can be hollow and / or provided with one or more perforations penetrating through the body part 118 to help with the fluid flow rate. In the first embodiment of the present application, the first valve plug 106 is configured in a generally cylindrical shape, but this is only exemplary, and those skilled in the art can conceive of any other suitable shape of the first valve plug 106 without departing from the scope of the present application. In other words, the first valve plug 106 can be in any shape such as square, rectangular, oval, polygonal, etc. without departing from the scope of the present application.

[0041] As mentioned above, in the shown embodiment, the first elastic member 104 is held between the first end holding member 102 and the first valve plug 106. By way of example and not limitation, the first elastic member 104 is generally in a natural state, that is, neither compressed nor stretched, in the disconnected state of the universal quick connector, and is held between the first end holding member 102 and the first valve plug 106.

[0042] Of course, it can be conceived that the first elastic member 104 is compressively held between the first end holding member 102 and the first valve plug 106 in the disconnected state of the general quick connector. In this case, it can be conceived that there is a limiting portion (not shown) located outside the first valve plug 106 that can cooperate with the inner wall of the hollow space of the male connector housing 108 (for example, a protrusion protruding from an appropriate position of the main body portion of the first valve plug 106, and correspondingly, the inner wall of the hollow space includes a stopper such as a block located on the side close to the thickened portion 112 at a corresponding position so that the displacement range of the first valve plug 106 relative to the first end holding member 102 toward the thickened portion 112 side is limited).

[0043] In addition, it can be conceived that a male connector locking portion 124 capable of cooperating with the female connector described in detail later can be included on the outer side of the male connector housing 108 to ensure stability when the male connector 10 and the female connector 20 are connected to each other.

[0044] Furthermore, reference will be made herein to Figure 5 describe the structure of the female connector 20 according to an embodiment of the present application.

[0045] As Figure 5 shown, according to the first embodiment of the present application, the female connector 20 at least includes a second end holding member 202, a support disk 204, a second elastic member 206, a second valve plug 208, an intermediate support member 210, and a female connector housing 212.

[0046] As Figure 5 shown, the female connector housing 212 is hollow to accommodate the second elastic member 206, the support disk 204, the second valve plug 208, and the intermediate support member 210 in its hollow space and is configured to receive the insertion portion 110 of the male connector 10. Further, in the first embodiment of the present application, the inner diameter of the hollow space of the female connector housing 212 for receiving and accommodating the second elastic member 206, the second valve plug 208, and the intermediate support member 210 is substantially constant.

[0047] The second end holding member 202 is hollow and is configured to be fixedly connected to (for example, by any appropriate fixing means such as threaded connection (as Figure 5 shown), gluing, etc.) one end of the female connector housing 212.

[0048] The support disk 204 is configured to be removably connected to the female connector housing 212 to be fixed relative to the female connector housing 212. As an example, the support disk 204 is provided with one or more openings to ensure the flow rate of fluid through the support disk. Optionally, the support disk 204 is configured to be snap-fitted to the female connector housing 212 facing the fluid through hole of the second end holding member 202 or snap-fitted to the second end holding member 202 or inserted between the female connector housing 212 and the second end holding member 202.

[0049] As Figure 4 shown, the intermediate support member 210 includes a support rod 214 and a support head 216 that are connected to each other. The support rod 214 is also fixedly connected to the support disk 204 to remain fixed with the female joint housing 212. In the first embodiment of the present application, the diameter or size of the head of the second valve plug 208 is not less than the diameter or size of the support head 216 of the intermediate support member 210, and preferably they are the same. It is conceivable that the support head 216 is configured to be solid. The support rod 214 is generally uniform and the size of its cross-section is smaller than the maximum size of the cross-section of the support head 216 to form a T-shape, for example, and the cross-section corresponds to the plane intercepted by a plane perpendicular to the axial direction.

[0050] As Figure 4 shown, the second valve plug 208 is configured to be in form fit and generally closely held between the inner wall of the female joint housing 212 and the support head 216 of the intermediate support member 210 in the disconnected state of the male joint 10 and the female joint 20. The side of the second valve plug 208 facing the second end retainer 202 contacts and abuts one end of the second elastic member 206, and the side of the support disk 204 facing the second valve plug 208 contacts and abuts the other end of the second elastic member 206. Optionally, the periphery of the second valve plug 208 on the side facing the second end retainer 202 includes a flange 218 such that the flange 218 can be held between the inner wall of the female joint housing 212 and the outer side of the second elastic member 206 to better hold the second elastic member 206. Preferably, the flange 218 is generally closely or in form fit held between the inner wall of the female joint housing 212 and the outer side of the second elastic member 206. Optionally, the entire outer wall of the second valve plug 208 generally abuts against the inner wall of the female joint housing 212. Generally, the second valve plug faces the end face of the contact insertion part in the connected state of the male joint and the female joint so as to be pushed and moved by the insertion part.

[0051] As shown in the first embodiment, a second seal 220, such as an O-ring, is provided along the circumference of the support head 216 of the intermediate support member 210 to be able to closely cooperate with the inner wall of the second valve plug 208 to prevent possible leakage of fluid.

[0052] Further, it can be imagined that the second valve plug 208 includes a second limiting portion 222 to prevent the second valve plug 208 from moving in the direction from the second end retainer 202 toward the support head 216 to disengage from the support head 216 of the intermediate support 210, so as to ensure that the inner wall of the second valve plug 208 and the support head 216 are kept sealed in the disconnected state of the male connector 10 and the female connector 20. Of course, it can be imagined that the inner wall of the female connector housing 212 is provided with a third sealing member 224 that is sealed and engaged with the outer side of the second valve plug 208 in the disconnected state of the male connector 10 and the female connector 20 to ensure the sealing. Further, it can be imagined that the inner wall of the female connector housing 212 is provided with a fourth sealing member 226 that is located on the side of the third sealing member 224 that is away from the second end retainer 202 in the disconnected state of the male connector 10 and the female connector 20 to enhance the sealing in the connected state of the male connector 10 and the female connector 20. As an example, the third and fourth sealing members can also be selected as O-rings, but this is only exemplary. The first to fourth sealing members may select any possible sealing structure that can ensure sealing in the circumferential direction without departing from the scope of the present application.

[0053] As described above, in the illustrated embodiment, the second elastic member 206 is held between the support disc 204 and the second valve plug 208. As an example and not a limitation, the second elastic member 206 is held between the support disc 204 and the first valve plug 106208 in a substantially natural state, that is, neither compressed nor stretched, in the disconnected state of the universal quick connector. Of course, it is conceivable that the second elastic member 206 is held in compression between the support disc 206 and the second valve plug 208 in the disconnected state of the universal quick connector.

[0054] Optionally, Figure 5 As shown, the second valve plug 208 includes a protrusion as a second limit portion 222 in its inner wall at a side close to the second end retainer 202 so as to be able to abut against the side of the support head 216 of the intermediate support 210 close to the second end retainer 202 to ensure that the second valve plug 208 will not be moved beyond the intermediate support 210 and detach from the female connector 20. Obviously, the protrusion forms the second limit portion 222 to a certain extent and the support head 216 forms a corresponding stopper for the limit portion. Of course, the form of this limit portion 222 is only exemplary, and those skilled in the art may be able to limit the axial movement range of the second valve plug 208 in any possible form of the limit portion 222 without departing from the scope of the present application.

[0055] In addition, it is conceivable that the inner side of the female connector housing 212 may also include a female connector locking portion 228 that can cooperate with the male connector locking portion 124 located on the outer side of the male connector housing 108 to ensure stability and firmness when the male connector 10 and the female connector 20 are connected to each other.

[0056] Although the general structure of the universal quick connector according to the first embodiment of the present invention has been described above, these structures are merely exemplary and not restrictive. Those skilled in the art can make various modifications based on requirements without departing from the principles of the present application without departing from the scope of the present application.

[0057] Here, the principle of the universal quick connector of the present application will be briefly described: when the male connector 10 and the female connector 10 are disconnected from each other, the sealing effect is achieved by means of the sealing connection between the first valve plug 106 and the inner wall of the male connector housing 108 and the support head 216 of the intermediate support member 210, and the sealing connection between the second valve plug 208 and the female connector housing to prevent fluid leakage; when the male connector and the female connector are connected to each other, the end of the insertion portion of the male connector housing 108 abuts against the second valve plug 208 and the first valve plug 106 abuts against the support head 216. When further pushed, the fixed support head 216 will push the first valve plug 106 close to the first end retainer 102 and finally both the support head 216 and the second valve plug 208 are held in the male connector housing 108, and the insertion portion pushes the second valve plug 208 to move close to the second end retainer, so that an offset occurs between the thickened portion in the inner wall of the first valve plug 106 and the male connector and between the support head 216 and the inner wall of the second valve plug 208 to form a fluid passage, enabling fluid communication.

[0058] As described above, in the universal quick connector described above, since the first seal 122 at the head of the first valve plug 106 and the second seal 220 at the support head 216 of the intermediate support member 210 are no longer subject to any external constraints, therefore, in the case of too high fluid flow rate or due to fluid corrosion, etc., it is easy to cause deterioration or even detachment of the first and / or second seals and no longer be able to ensure that no fluid leakage occurs when the universal quick connectors are disconnected from each other. In addition, when the first valve plug 106 and the second valve plug 208 are compressed or restored from self-compression, due to the gaps between the first elastic member 104 and the inner wall of the male connector housing 108 or / and between the second valve plug 208 and the outer wall of the support rod 214, it may cause the first elastic member 104 and thus the deviation of the first valve plug 106 or the second valve plug 208 in the direction deviating from the axial direction, resulting in possible offset. Therefore, in order to further ensure the sealing stability of the universal quick connector of the present application to protect the equipment, the universal quick connector based on the concept of the present application may also selectively include a constraint member, which is configured to ensure the precise axial movement of the first elastic member 104 and / or the first valve plug 106 and / or the second valve plug 208. In addition, the constraint member is also configured to ensure the circumferential retention of the first seal 122 of the first valve plug 106 and / or the second seal 220 of the intermediate support rod 210 in the connected state of the universal quick connector.

[0059] In other words, the restraint can prevent the first valve plug 106 and / or the second valve plug 208 from such undesired displacement movement by means of shape matching, and can also restrain and retain the first seal 122 of the first valve plug 106 and the second seal 220 of the support head 216, especially in the connected state of the universal quick connector, to prevent these seals from being degraded by the flowing fluid, such as loosening or even falling off. Of course, it is described here that the restraint can achieve the above two functions, but those skilled in the art can understand that it is possible to design a restraint that can only achieve any one of the functions, which obviously does not depart from the scope of the present application.

[0060] Optionally or additionally, according to the first embodiment of the present application, as Figure 3 As shown, the male connector 10 according to the first embodiment of the present application may also include a first constraint member configured as a first sleeve member 302, the detailed structure of the first sleeve member 302 is shown in FIG. Figure 4 In. Figure 4 As shown, in this embodiment, the first sleeve member 302 is constructed as a hollow cylinder and is inserted between the outer side of the first elastic member 104 and the inner wall of the male connector housing 108 in a generally tight shape-fitting manner. With the help of the first sleeve member 302, it can be ensured that the first elastic member 104 will not deviate from the axial direction of the male connector 10 due to the gap between the first elastic member 104 and the inner wall of the male connector housing 108 during compression or compression or self-compression recovery, such as tilting and offsetting relative to the axial direction, thereby causing the corresponding deviation movement of the first valve plug 106, so that when the male connector 10 is disconnected from the female connector 20 from the self-connected state, the head of the first valve plug 106 cannot be correctly oriented to restore to close contact with the inner wall of the thickened portion with the help of the seal, which may cause leakage of the male connector 10. Obviously, with the help of such a first sleeve member 302, such deviation movement of the first elastic member 104 can be avoided to ensure the sealing performance of the male connector 10.

[0061] Optionally, the length of the first sleeve member 302 (measured in the axial direction) is selected to be substantially equal to the length between the first abutment portion 114 of the first end retaining member 102 (from the side close to the first elastic member 104) and the starting position of the thickened portion 112 (or the starting position of the gradually thickening portion 112-2 as described above, which indicates the end of the gradually thickening portion 112-2 that is away from the constant thickening portion 112-1 and the thickness gradually increases from the starting position) so that the first sleeve member 302 is generally firmly held in the male connector without shaking.

[0062] Optionally, the thickness of the first sleeve member 302 (measured in the radial direction) is selected to be substantially equal to the thickness between the outer side of the first elastic member 104 and the corresponding inner wall of the male connector housing 108 excluding the thickened portion. Of course, the first sleeve member 302 can be selected to have other thicknesses as long as the first sleeve member 302 can keep the first elastic member 104 from deviating and moving.

[0063] Optionally, the first sleeve member 302 further includes a reduced portion 3020 on at least a portion of its length, and the reduced portion 3020 is configured so that it shrinks inwardly relative to other portions of the first sleeve member 302. The reduced portion 3020 is positioned to face the side of the first valve plug 106 that is away from the first end retainer 102 from the second abutment portion 120 when the male connector 10 and the female connector 20 are disconnected, in other words, it is located on the side of the first valve plug 106 that is away from the first elastic member 104 from the second abutment portion 120. Preferably, the inner diameter of the reduced portion 3020 is selected to be substantially equal to the inner diameter of the male connector housing 108 at the thickened portion 112, especially the constant thickened portion 112-1. The reduced portion 3020 can be configured to surround the entire axial direction or be on at least a portion of the circumference. Preferably, the reduced portion 3020 is configured to surround and abut against at least a portion of the head 116 of the first valve plug 106 or its seal when the male connector 10 is connected to the female connector 10. As a variant or alternatively, for a first valve plug of substantially constant cylindrical shape, the inner diameter of the reduced portion 3020 is selected to abut against the outer circumference of the first valve plug on the side of the second abutment away from the first end retainer in a form-fitting manner.

[0064] Preferably, the joint 3022 of the reduced portion 3020 to the rest of the first sleeve member 302 and the reduced portion 3020 itself are respectively provided with one or more openings 3024 so as not to excessively interfere with the flow rate of the male connector 10. Optionally, the reduced portion 3020 is positioned on the entire first sleeve member 302 facing the side of the first valve plug 106 that is away from the first end retainer 102 from the second abutment portion 120 when the male connector 10 is disconnected from the female connector 20. Also optionally, openings may be provided in the entire circumferential surface of the first sleeve member 302 to further facilitate the flow rate of the fluid.

[0065] Further, optionally, the first sleeve member 302 may include ribs (not shown) protruding radially inwardly, which ribs are positioned to face the first valve plug 106 on the side of the second abutment portion 120 facing away from the first end holder 102 in the disconnected state of the male connector 10 and the female connector 20, in other words, located on the side of the first valve plug 106 facing away from the first elastic member 104 with respect to the second abutment portion 120. To ensure uniform stress distribution, the number of ribs is at least two and evenly distributed. Preferably, the inner diameter of the circle formed by the radially free ends of the ribs is selected to be substantially equal to the inner diameter of the male connector housing 108 at the thickened portion, particularly at the constant thickened portion 112-1. Preferably, these ribs are configured to abut and surround the head 116 of the first valve plug 106 and its first seal 122 in the connected state of the male connector 10 and the female connector 20. As a variant or alternatively, for a substantially constant cylindrical first valve plug, the ribs are selected to fit snugly against the outer peripheral surface of the first valve plug on the side of the second abutment portion away from the first end holder.

[0066] Further, the length of the reduced portion 3020 or the ribs is also selected such that when the male connector 10 and the female connector 20 are in the connected state, the second seal 220 of the support head 216 of the intermediate support member 210 can also be circumferentially constrained. In this case, it can be determined that the shape and size of the cross-section of the head 116 of the first valve plug 106 are the same as the size and shape of the cross-section at the support head 216 of the intermediate support member 210 that holds the second seal 220.

[0067] Also optionally or additionally, according to the first embodiment of the present application, as Figure 3 and Figure 6 shown, the female connector 20 according to the first implementation of the present application may further include a second restraint member configured as a second sleeve member 304, the detailed structure of which is shown in Figure 6 FIG. The second sleeve member 304 is generally cylindrical and is held inside the second elastic member 206. Preferably, the inner diameter of the second sleeve member 304 is substantially equal to the outer diameter of the support rod 214 such that the second sleeve member 304 is stably held. Preferably, the length of the second sleeve member 304 is selected to be substantially the same as the length of the support rod 214 for stable holding.

[0068] Preferably, the second sleeve member 304 includes at least one, and in order to maintain stability, at least two and evenly distributed ribs 3040 on its outer side. For the case where the second valve plug 208 includes the second limiting portion 222, the protruding height of the ribs 3040 of the second sleeve member 304 is selected to be substantially in shape-fit and inscribed in the inner wall at the second limiting portion 222 of the second valve plug 208 so as to ensure that the second valve plug 208 can be strictly ensured to move along the axial direction when moving. These ribs 3040 enable the second elastic member 206 or the second valve plug 208 to only move along the strict axial direction even when the second elastic member 206 is compressed or restored from compression, without offset, so that the strict axial movement of the second valve plug 208 can be ensured without unwanted offset.

[0069] Optionally, in the first embodiment of the present application, the first sleeve member 302 and the second sleeve member 304 may be of a non-closed shape structure, such as an open cylindrical shape. Of course, the first and second sleeve members 304 of the non-closed shape structure are configured to cover a sufficient area, such as at least 60%, to ensure the stable retention of each sleeve member and the as-uniform-as-possible distribution of stress.

[0070] In Figure 9 - 12C the schematic diagram of, the general quick connector according to the first embodiment of the present application includes both the above-mentioned first sleeve member 302 and second sleeve member 304. Refer to Figure 9 - 12C , when the general quick connector according to the first embodiment of the present application is in the connected state, the first valve plug 106 is pushed from the contact state with the thickened portion 112 of the male connector housing 108 to be separated from the thickened portion by means of the support member 214, and finally is located at the reduced portion 3020 of the first sleeve member 302 together with the support head 216, so that an additional circumferential constraint on the first seal 124 and the second seal 220 is achieved by means of the reduced portion 3020, thereby preventing the first and second seals from being deteriorated, such as detached, due to the flow action of the fluid. Correspondingly, by means of the second sleeve member 304, since the inner wall of the second limiting portion 222 of the second valve plug 208 remains in contact with the radial free end of the rib 3040 of the second sleeve member 304 when approaching the second end retainer 202 due to the push of the insertion portion of the male connector 10, the strict axial movement of the second valve plug 208 can be ensured.

[0071] Also as Figure 9 - 12C shown, when the general quick connector according to the first embodiment of the present application is in the connected state, the possible third seal 224 and fourth seal 226 can both be retained between the outer side of the insertion portion 110 of the male connector 10 and the inner wall of the female connector housing 212, so as to ensure that the fluid does not overflow therefrom.

[0072] Although inFigure 9 - 12C In the schematic diagram, the general quick connector according to the first embodiment of the present application includes both the above-mentioned first sleeve member 302 and second sleeve member 304. However, those skilled in the art should be aware that it may include at least one of the first and second sleeve members 304 without departing from the scope of the present application.

[0073] In addition, although in the above description of the present application, the specific structure of the general quick connector in the first embodiment is described in detail, it can be understood that one or more of the shapes or sizes of the components can be modified based on the specific design of the general quick connector without departing from the scope of the present application.

[0074] With the above-mentioned first sleeve member 302 and second sleeve member 304, since they are both independent components, they can be manufactured separately and assembled into the corresponding structure of the general quick connector in the first embodiment when needed. Therefore, to some extent, the first and second sleeve members 304 based on the same concept can be used to improve other possible general quick connectors in the prior art to achieve the same advantages as in the embodiments of the present application. It should be understood that these technical solutions also clearly fall within the protection scope of the present application. Obviously, those skilled in the art can conceive that the above-mentioned first sleeve member 302 can be integrated into the inner wall of the corresponding male connector housing 108 and the above-mentioned second sleeve member 304 can be integrated onto the support rod 216 without departing from the scope of the present application at all.

[0075] The general quick connector according to the second embodiment of the present application will be described below. In the second embodiment, it is a variant of the technical solution based on integrating the first sleeve member 302 and the second sleeve member 304 into the male connector 10 and the female connector 20 respectively. Figure 2A shows an overall external schematic diagram of the general quick connector according to the second embodiment of the present application in a connected state and Figure 2B shows an overall perspective view of the general quick connector according to the second embodiment of the present application in a disconnected state; Figure 7 shows an exploded schematic diagram of the male connector of the general quick connector according to the second embodiment of the present application;

[0076] Figure 8 shows an exploded schematic diagram of the female connector of the general quick connector according to the second embodiment of the present application Figure 13 shows a cross-sectional schematic diagram of the general quick connector according to the second embodiment of the present application in a disconnected state; Figure 14 shows a cross-sectional schematic diagram of the general quick connector according to the second embodiment of the present application in a connected state; Figure 15A and 15B shows cross-sectional schematic diagrams of the female connector of the general quick connector according to the second embodiment of the present application in disconnected and connected states respectively; andFigure 16A and 16B shows cross-sectional schematic views of the male connector of the general quick connector according to the second embodiment of the present application in the disconnected and connected states, respectively.

[0077] As Figure 2A - 2B shown in detail in FIGS. 7 and 8, the difference from the general quick connector of the first embodiment mainly lies in the structures of the first valve plug 106 and the second valve plug 208 and the structures of the corresponding restraint members. In the second embodiment, the structure of the first valve plug 106 is generally the same as that of the first valve plug in the first embodiment, but the first valve plug 106 in the second embodiment further includes at least one, and in order to ensure stress balance, includes at least two uniformly distributed first guiding portions 1060; correspondingly, the inner wall of the insertion portion 110 of the male connector 10 includes a restraint member capable of shape-fitting with the first guiding portion 1060, which is the first guiding groove 1062 here. The first guiding groove 1062 axially extends from a position independent of the thickening portion 112. The first guiding groove 1062 radially projects inward from the inner wall of the insertion portion 110 and axially extends, and the protruding height is selected such that it generally contacts and abuts against the outer surface of the first valve plug 106. In such an embodiment, the first valve plug 106 is selected to have a generally cylindrical structure and optionally includes at least one opening penetrating the body portion. The first guiding portion 1060 of the first valve plug 106 is configured to align with the first guiding groove 1062 on the inner wall of the insertion portion 110 and is configured to be able to move axially along it. Since the extending height of the first guiding groove 1062 generally abuts against the outer surface of the first valve plug 106, when the first valve plug 106 approaches the first end holder 102 due to being pushed, the first valve plug 106 can only move strictly axially due to the limitation of the first guiding groove 1062, and the first guiding groove 1062 circumferentially restrains the first seal 122 when the first seal 122 moves into its range, thereby further ensuring the effective holding of the first seal 122 without deterioration such as detachment. The dimension or range of the first guiding groove 1062 in the axial direction can be selected to be similar to the dimension of the reduced portion 3020 or the rib in the first sleeve member 302 in order to obtain a similar effect, and details will not be described additionally here.

[0078] Optionally or additionally, as Figure 2A - 2B, 7 and 8, in the second embodiment, the structure of the second valve plug 208 is substantially the same as that of the second valve plug 208 of the first embodiment, but the second valve plug 208 of the second embodiment further includes at least one second guide portion 2060 located outside the second valve plug 208, and includes at least two uniformly distributed second guide portions 2060 to ensure stress balance; accordingly, the inner wall of the female connector housing 212 for accommodating the second valve plug 208 includes a second guide groove 2062 that can be matched with the second guide portion 2060 in shape as a constraint. The second guide groove 2062 extends radially outward from the inner wall. The second guide portion 2060 of the second valve plug 208 is configured to align with the second guide groove 2062 and is configured to be able to move axially thereof. With the shape matching of the second guide groove 2062 and the second guide portion 2060, when the second valve plug 208 is pushed and approaches the second end retainer 202, the second valve plug 208 can only be strictly moved axially due to the restriction of the second guide groove 2062.

[0079] Furthermore, in the second embodiment, the second limiting portion 222 of the second valve plug 208 is also configured in a modified manner. Figure 15A - 15B As shown, the second valve plug 208 is configured to be shape-fitted and generally tightly held between the inner wall of the female connector housing 212 and the support head 216 of the intermediate support member 210 when the male connector 10 and the female connector 20 are disconnected. The side of the second valve plug 208 facing the second end retainer 202 contacts against one end of the second elastic member 206, and the side of the support plate 204 facing the second valve plug 208 contacts against the other end of the second elastic member 206. Optionally, the second valve plug 208 includes a flange 218 on the periphery of the side facing the second end retainer 202 so that the flange 218 can be held between the inner wall of the female connector housing 212 and the outer side of the second elastic member 206 to better hold the second elastic member 206. As shown in the figure, the second guide portion 2060 is integrated at the free end of the flange 218 facing the second end retainer 202, and the inner wall of the female connector housing 212 includes a second guide groove 2062 of limited length. In other words, the end of the second guide groove 2062 facing away from the second end retainer 202 can be used as a stopper for the movement range of the second valve plug 208, so that the limiting portion protruding from the inner wall of the second valve plug 208 and matching the shape of the support head 216 as described in the first embodiment can be omitted. In this case, with the help of the shape matching of the second guide portion 2060 and the second guide groove 2062, the range of displacement of the second valve plug 208 can be limited, and the displacement direction of the second valve plug 208 can be limited.

[0080] It is also conceivable that the second limiting portion 222 of the second valve plug 208 in the first embodiment may be configured to integrally form ribs (not shown) extending radially inward from the second limiting portion 222 as a restraint. In this case, the ribs extend inward until they contact the support rod 214 so as to ensure strict axial movement of the second valve plug 208.

[0081] It should be understood that in the embodiments of the present application, the first guiding portion 1060 of the first valve plug 106 may be configured as a protruding guiding groove and the first guiding groove 1062 may be configured as a guiding strip that is in shape fit with the protruding guiding groove. Similarly, the second guiding portion 2060 of the second valve plug 208 may be configured as a recessed guiding groove or a protruding guiding groove, and the second guiding groove may correspondingly be configured as a guiding strip protruding from the inner wall. These variations are also included in the embodiments of the present application.

[0082] Here, it needs to be additionally understood that in the embodiments of the present application, words such as "abut against" or "rest against" all mean "abut against in shape fit" or "rest against in shape fit", unless otherwise stated in the present application.

[0083] Although the specific embodiments of the present application are described in the above embodiments, those skilled in the art should know that these are only exemplary.

Claims

1. A universal quick connector, characterized in that: It comprises a male connector and a female connector, wherein the male connector comprises a first end retainer (102), a first elastic member (104), a first valve plug (106), and a male connector housing (108), wherein the male connector housing comprises an insertion portion (110) whose inner wall at the end inserted into the female connector comprises a thickened portion extending radially inward; the first end retainer is fixedly connected to one end of the male connector housing; the first valve plug comprises a head portion accommodated at the thickened portion in the disconnected state of the universal quick connector, and a body portion, the first elastic member is retained between a second abutment portion of the body portion and a first abutment portion of the first end retainer, and a first sealing member is circumferentially arranged around the head portion; the female connector The head includes a second end retaining member (202) and a support disk (204) removably fixedly connected to the female connector housing, a second valve plug (208), a second elastic member (206) retained between the second valve plug and the support disk, and an intermediate support member (210) including a support rod fixedly connected to the support disk and a support head, wherein the second valve plug is constructed to be sealed and retained between the female connector housing and the support head when the universal quick connector is in a disconnected state, and a second sealing member is circumferentially arranged on the support head, and the universal quick connector also includes at least one constraint member, which is constructed to limit the axial displacement direction of at least one of the first valve plug or the second valve plug by shape matching.

2. The universal quick connector according to claim 1, characterized in that: A third seal (224) is provided on the inner wall of the female connector housing and is sealingly engaged with the outer side of the second valve plug (208) when the male connector and the female connector are disconnected, and / or a fourth seal (226) is provided on the inner wall of the female connector housing and is located on the side of the third seal (224) facing away from the second end retaining member.

3. The universal quick connector according to claim 1 or 2, characterized in that: The male connector includes the restraining member configured as a first sleeve member (302), wherein the first sleeve member (302) is configured as a hollow cylinder and is tightly inserted between the outer side of the first elastic member (104) and the inner wall of the male connector housing (108).

4. The universal quick connector according to claim 3, characterized in that: The length of the first sleeve member (302) is selected to be equal to the length between the first abutment portion and the thickened portion of the first end retaining member (102), and / or the thickness of the first sleeve member (302) is selected to be equal to the thickness between the outer side of the first elastic member (104) and the inner wall of the male connector housing (108) excluding the thickened portion.

5. The universal quick connector according to claim 3, characterized in that: The first sleeve member (302) further includes a narrowing portion (3020) on at least a portion of its length, the narrowing portion (3020) being configured to be radially inwardly narrowed relative to other portions of the first sleeve member (302), the narrowing portion (3020) being positioned to face the first valve plug on a side of the first end retainer (102) which is away from the second abutting portion when the male connector and the female connector are in the disconnected state, the narrowing portion (3020) being configured to extend along the entire circumferential direction of the first sleeve member (302) or a portion of the circumferential direction. The invention relates to a device for manufacturing a plurality of reduction portions of a plurality of reduction portions, wherein the reduction portion (3020) is configured to extend and is characterized in that the inner diameter of the reduction portion (3020) is equal to the inner diameter of the male connector housing (108) at the thickened portion and / or the reduction portion (3020) is constructed to have one or more openings around the first seal or both the first seal and the second seal that abut against and hold the first valve plug (106) when the male connector is connected to the female connector, and / or the joint between the reduction portion (3020) and the rest of the first sleeve member (302) and the reduction portion (3020) itself.

6. The universal quick connector according to claim 3, characterized in that: The first sleeve member (302) includes a rib protruding radially inwardly, and the rib is positioned to face the side of the first valve plug that is away from the first end retaining member (102) from the second abutment portion when the male connector and the female connector are disconnected, and the inner diameter of the circle formed by the free end of the rib is selected to be equal to the inner diameter of the male connector housing (108) at the thickened portion, and / or the rib is constructed to abut against the first seal or both the first seal and the second seal that retain the first valve plug (106) when the male connector and the female connector are connected.

7. The universal quick connector according to claim 1 or 2, characterized in that: The female connector includes the restraining member configured as a second sleeve member (304), wherein the second sleeve member (304) is configured to be cylindrical and is retained inside the second elastic member, wherein the inner diameter of the second sleeve member (304) is equal to the outer diameter of the support rod.

8. The universal quick connector according to claim 7, characterized in that: The second valve plug (208) also includes a second limiting portion (222) cooperating with the supporting head (216) to prevent the second valve plug (208) from moving in a direction from the second end retaining member to the supporting head (216) to disengage from the supporting head (216), and the second sleeve member (304) includes at least one rib on its exterior, and the rib is constructed to be connected to the inner wall at the second limiting portion (222) of the second valve plug (208) when the second limiting portion (222) of the second valve plug (208) moves to face the second sleeve member (304).

9. The universal quick connector according to claim 1, characterized in that: The first valve plug (106) includes at least one first guide portion (1060) extending axially on the outside thereof, and the inner wall of the insertion portion of the male connector includes the restraining member which is configured as a first guide groove (1062) that matches the shape of the first guide portion (1060) and is independent of the thickened portion, wherein the first guide groove (1062) protrudes radially inward from the inner wall of the insertion portion (110) and the protruding height is selected so as to contact and abut against the outer peripheral surface of the first valve plug (106).

10. The universal quick connector according to claim 1, characterized in that: The second valve plug (208) includes at least one second guide portion (2060) located on the outside of the second valve plug (208) and protruding and extending, and the inner wall of the female connector housing includes the restraint member that is shaped to match the second guide portion (2060) and is constructed as a second guide groove (2062), and the second guide portion (2060) of the second valve plug (208) is constructed to be aligned with the second guide groove and is guided to move axially thereof.

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