Quick connector construction and quick connector assembly

Abstract

A quick connector structure is provided to solve the problem that the existing quick connector is easily damaged by impact force. The quick connector structure includes a first connector having a first housing, a first inner housing movably connected to the inner side of the first housing, the inner side of the first inner housing having a first valve channel, a buffer member arranged between the first housing and the first inner housing for reducing the kinetic energy of the first inner housing when the first inner housing moves relative to the first housing and compresses the buffer member, a first valve core movably connected to the inner side of the first inner housing to close or open the first valve channel, and a first elastic member arranged between the first inner housing and the first valve core. The impact force received by the first connector can be reduced by the above arrangement.

Description

Technical Field

[0001] This invention relates to a connector, and more particularly to a quick connector construction and quick connector assembly. Background Technology

[0002] Quick-connect couplings are designed to enable rapid assembly or connection of two components and have been widely used in various technical fields. In particular, in applications with liquid cooling equipment, a Cooling Distribution Unit (CDU) and a coolant source can be equipped with corresponding quick-connect couplings. These couplings connect and connect the coolant source, allowing coolant to flow from the source into the distribution unit, which then distributes the coolant to the appropriate machine or equipment. The coolant source is, for example, a coolant tank for holding the coolant.

[0003] In detail, with technological advancements, in situations where equipment generates high heat and requires rapid cooling—such as servers or hosts with high computing power—the configuration of coolant distribution units and coolant sources becomes increasingly necessary. However, when the coolant distribution unit is installed in the corresponding server rack and connects to the coolant source via rack movement and corresponding quick-connect fittings, excessive impact forces during the connection of the quick-connect fittings, especially the impact force generated by the inertia of the weight of the equipment mounted on the rack, may cause damage to the quick-connect fittings or leaks.

[0004] In view of this, there is indeed a need to improve the existing quick couplings. Summary of the Invention

[0005] To address the aforementioned problems, the present invention aims to provide a quick connector structure that can mitigate the impact force experienced by the connector.

[0006] Another object of the present invention is to provide a quick connector assembly that can mitigate the impact force on the connector.

[0007] The directions or similar terms used throughout this invention, such as "front", "back", "left", "right", "top", "bottom", "inner", "outer", "side", "end", etc., are mainly for reference to the directions in the accompanying drawings. These directions or similar terms are only used to assist in explaining and understanding the various embodiments of this invention and are not intended to limit this invention.

[0008] The use of the quantifiers “a” or “an” for the elements and components described throughout this invention is for convenience and to provide the general meaning of the scope of the invention; in this invention, it should be interpreted as including one or at least one, and a single concept also includes multiple cases, unless it clearly means otherwise.

[0009] The terms “first,” “second,” … and “Nth” used throughout this invention are primarily used to distinguish different elements or features (such as elements, directions, or steps), and do not indicate the maximum or minimum number of these elements or features possessed by a corresponding subject or method, nor do they limit the order of priority.

[0010] The terms "combination," "integration," or "assembly" used throughout this invention mainly refer to the types of connections that allow for separation without damaging the components, or connections that make the components inseparable. Those skilled in the art can choose the appropriate term based on the material of the components to be connected or the assembly requirements.

[0011] The quick connector structure of the present invention includes: a first connector having: a first outer shell; a first inner shell movably connected to the inner side of the first outer shell, the inner side of the first inner shell having a first valve passage; a buffer member disposed between the first outer shell and the first inner shell for reducing the kinetic energy of the first inner shell when the first inner shell moves relative to the first outer shell and compresses the buffer member; a first valve core movably connected to the inner side of the first inner shell to close or open the first valve passage; and a first elastic member disposed between the first inner shell and the first valve core.

[0012] Therefore, the quick connector structure of the present invention allows the first inner shell in the first connector to move relative to the first outer shell, and through the configuration of the buffer, when the first connector is subjected to impact force, especially the impact force received by the first inner shell and / or the first valve core, the impact force can be reduced by the first inner shell compressing the buffer, thereby reducing the risk of the first connector being damaged or leaking due to excessive impact force.

[0013] The first outer shell may have an inner shoulder that extends inward from the inside of the first outer shell; the buffer is disposed on or abuts against the inner shoulder. Thus, by configuring the inner shoulder, the buffer can be easily disposed between the first outer shell and the first inner shell, thereby reducing the risk of the first connector being damaged or leaking due to excessive impact force.

[0014] The inner shoulder may have an axially facing abutment surface, and the buffer is disposed on or abuts against this abutment surface. Thus, by having the abutment surface axially facing, the buffer can primarily absorb axial impact forces, thereby reducing the risk of damage or leakage to the first joint due to excessive impact.

[0015] The first outer shell may have a retaining ring disposed on the inner side of the first outer shell and encircling the outer side of the first inner shell; there is an axial gap between the retaining ring and the inner shoulder. Thus, by encircling the outer side of the first inner shell with the retaining ring, radial torque resistance can be provided to the first inner shell, which has the effect of making the first inner shell move smoothly.

[0016] The outer side of one end of the first inner shell may have a first outwardly extending protrusion, which is disposed between the buffer and the retaining ring. When the first inner shell moves in one direction, the first outwardly extending protrusion abuts against the retaining ring; when the first inner shell moves in the opposite direction, it compresses the buffer. Thus, through the configuration between the retaining ring and the first outwardly extending protrusion, the first inner shell can have a specific range of motion, and within this specific range, the buffer remains in continuous contact with the first inner shell, thereby ensuring that the impact force received by the first inner shell is immediately absorbed and mitigated by the buffer.

[0017] The first outer shell may include a seal disposed between the retaining ring and the inner shoulder. This seal effectively prevents fluid leakage caused by movement of the first inner shell.

[0018] The buffer can be a corrugated sheet or a helical spring. This buffer configuration effectively reduces the risk of damage or leakage to the first connector due to excessive impact.

[0019] The elastic coefficient of the buffer is greater than that of the first elastic element. Thus, by appropriately configuring the size and stroke of the buffer and the first elastic element according to their respective elastic coefficients, the first inner shell can more easily compress the first elastic element to open the first valve passage; and relative to the first elastic element, the buffer can absorb a larger impact force per unit stroke, thereby effectively mitigating the impact force on the first inner shell.

[0020] The buffer element has a through hole communicating with the first valve passage, and the diameter of the through hole is not smaller than the diameter of the first valve passage. This ensures that the fluid in the first valve passage flows smoothly through the through hole.

[0021] The quick connector assembly of the present invention has the first connector as described above, and includes: a second connector having a second outer shell; a second inner shell movably connected to the inner side of the second outer shell, the inner side of the second inner shell having a second valve passage; a second valve core disposed on the inner side of the second outer shell; the second valve core can close or open the second valve passage by changing the position of the second inner shell; and a second elastic member disposed between the second inner shell and the second outer shell, or disposed between the second inner shell and the second valve core; when the first connector and the second connector are aligned and engaged, the first inner shell is used to contact and push the second inner shell, and the second valve core is used to contact and push the first valve core.

[0022] Therefore, in the quick-connect assembly of the present invention, the first inner shell of the first connector can move relative to the first outer shell, and through the configuration of the buffer, when the first connector is subjected to impact force, especially the impact force received by the first inner shell and / or the first valve core, the impact force can be reduced by the first inner shell compressing the buffer, thereby reducing the risk of damage or leakage of the first connector due to excessive impact force. Furthermore, through the relationship between the first inner shell and the second inner shell, and through the relationship between the second valve core and the first valve core, the function of controlling whether the first valve passage and the second valve passage connector are connected can be achieved.

[0023] Specifically, when the first connector and the second connector are in a state of separation, and then align and approach each other to initially contact, there is no relative movement between the first valve core, the first inner shell, and the first outer shell, and the first valve passage is closed; similarly, there is no relative movement between the second inner shell and the second valve core, and the second valve passage is closed. Thus, even when the first connector and the second connector are not properly engaged or disengaged, the first valve passage and the second valve passage can be closed, effectively preventing fluid leakage.

[0024] In this configuration, when the first connector and the second connector are aligned and continuously approaching each other, such that the distance between them is no greater than a preset distance, the first inner shell pushes the second inner shell to move in the direction of compressing the second elastic member, thereby opening the second valve passage; and the second valve core pushes the first valve core to move in the direction of compressing the first elastic member, thereby opening the first valve passage; the first valve passage and the second valve passage are in communication. Thus, when the distance between the first connector and the second connector when they are engaged is no greater than the preset distance, the first valve passage and the second valve passage can be connected, achieving the effect of allowing the target fluid to flow between the second connector and the first connector. Attached Figure Description

[0025] Figure 1 : An exploded perspective view of a preferred embodiment of the quick connector assembly of the present invention; Figure 2 :like Figure 1 The first and second joints in the diagram are separate structural cross-sectional views; Figure 3 : Continuation Figure 2 The first and second joints are in initial contact, as shown in the structural cross-sectional view. Figure 4 : Continuation Figure 3 A cross-sectional view showing the first and second joints in a connected state; Figure 5 Another preferred embodiment of the buffer element of the first connector of the present invention.

[0026] Explanation of reference numerals in the attached figures: 1: First connector 11: First outer shell 111: Inner shoulder area 112: Fixing ring 113: Seals 11a: First end: 11b: Second end 11P: First Channel 12: First Inner Shell 121: First convex part 122: First inner convex part 123: First Pedestal 124: Perforation 12a: Third end 12b: Fourth end 12V: First valve channel 13: Buffer 131: Through hole 14: First valve core 141: First Head 142: First section of the pole 15: First elastic element 2: Second connector 21: Second outer shell 21a: Fifth end 21b: Sixth end 21P: Second Channel 22: Second inner shell 22a: Seventh end 22b: Eighth end 22V: Second valve channel 23: Second valve core 231: Second Plinth 232: Second Head 233: Second part of the rod 24: Second elastic element A: Contact surface F: Flow channel g: gap O: Seal x: Axial direction. Detailed Implementation

[0027] To make the above and other objects, features and advantages of the present invention more apparent and understandable, preferred embodiments of the present invention are described below in detail with reference to the accompanying drawings; in addition, those symbols that are used in different drawings are considered to be the same and their descriptions will be omitted.

[0028] Please refer to Figures 1-4 As shown, this is a preferred embodiment of the quick-connect assembly of the present invention, including a first connector 1 and a second connector 2. The first connector 1 can be used to abut the second connector 2. Preferably, when the first connector 1 abuts the second connector 2 within a specific position range (as in the present invention), Figure 4 As shown), the first connector 1 is connected to the second connector 2 to allow fluid flow; the fluid can be a gas or a liquid, especially a coolant.

[0029] The first connector 1 includes a first outer shell 11, a first inner shell 12, a buffer member 13, a first valve core 14, and a first elastic member 15. The first inner shell 12 is movably connected to the inside of the first outer shell 11, and the inside of the first inner shell 12 has a first valve passage 12V. The buffer member 13 is disposed between the first outer shell 11 and the first inner shell 12; thus, when the first inner shell 12 moves relative to the first outer shell 11 and compresses the buffer member 13, the buffer member 13 can reduce the kinetic energy / impact force of the first inner shell 12, thereby mitigating or absorbing the impact force received by the first connector 1. The first valve core 14 is movably connected to the inside of the first inner shell 12 to close or open the first valve passage 12V. The first elastic member 15 is disposed between the first inner shell 12 and the first valve core 14. In particular, when the first elastic member 15 is in a preset extended state, the first valve core 14 can close the first valve passage 12V; when the first valve core 14 moves and compresses the first elastic member 15, the first valve passage 12V can be opened.

[0030] The inner side of the first housing 11 has a first channel 11P; optionally, the first housing 11 and the first channel 11P extend along an axial direction x. Specifically, the first housing 11 has a first end 11a and a second end 11b opposite to each other, and the first channel 11P extends between the first end 11a and the second end 11b. In particular, the first end 11a and the second end 11b are configured opposite each other in the axial direction x. Specifically, the first end 11a is used to attach a target object (not shown), and the target object is, for example, a liquid-cooled dispensing unit. Optionally, a seal O may be provided on the outer side of the first housing 11, particularly at the location where the first housing 11 connects to the target object. The seal O may be, for example, an O-ring.

[0031] In particular, the inner side of the first outer shell 11 may have an inner shoulder 111 and an abutment surface A generally facing the axial direction x; in particular, the inner shoulder 111 reduces the local diameter of the first channel 11P in the radial direction. Thus, through the configuration of the inner shoulder 111, the buffer 13 can be disposed on or abut against the inner shoulder 111, and in particular on or abut against the abutment surface A, so that when the first inner shell 12 compresses the buffer 13, especially when the first inner shell 12 moves toward the first end 11a and compresses the buffer 13, the intensity of the impact force on the first connector 1 and / or the first inner shell 12 can be reduced by the buffer 13, thereby preventing structural damage to the first connector 1 and / or the first inner shell 12, and / or preventing unintended leakage of the fluid to be transmitted. It should be noted that, in the illustrated example of the present invention, although the inner diameters of the first channel 11P on both sides of the inner shoulder 111 in the axial x direction are different, the inner diameters can vary according to actual application requirements and are not limited to the illustrations of the present invention.

[0032] Optionally, the first outer casing 11 may have a retaining ring 112 disposed on the inner side of the first outer casing 11; in particular, the retaining ring 112 may encircle the outer side of the first inner casing 12 to provide radial torque resistance to the first inner casing 12, allowing the first inner casing 12 to move smoothly, particularly smoothly in the axial x-direction. Specifically, there is an axial distance g between the retaining ring 112 and the inner shoulder 111.

[0033] Optionally, the first housing 11 may further include a seal 113 disposed on the inner side of the first housing 11 and between the retaining ring 112 and the inner shoulder 111 to prevent fluid leakage from the gap between the retaining ring 112 and the inner shoulder 111. Optionally, the seal 113 is made of rubber.

[0034] The first inner shell 12 is movably connected to the inner side of the first outer shell 11; in particular, the first inner shell 12 is movably disposed in the first channel 11P. The inner side of the first inner shell 12 has a first valve passage 12V; optionally, the first inner shell 12 and the first valve passage 12V extend along the axial direction x. Specifically, the first inner shell 12 has a third end 12a and a fourth end 12b relative to the third end 12a, and the first valve passage 12V extends between the third end 12a and the fourth end 12b. In particular, the third end 12a and the fourth end 12b are arranged opposite each other in the axial direction x.

[0035] Optionally, the outer side of one end of the first inner shell 12 has an outwardly extending first protrusion 121, which is disposed between the buffer member 13 and the retaining ring 112; in particular, the first protrusion 121 is disposed at the third end 12a of the first inner shell 12. When the first inner shell 12 moves in one direction, particularly towards the fourth end 12b, the first protrusion 121 will abut against the retaining ring 112; when the first inner shell 12 moves in the opposite direction, particularly towards the third end 12a, the first inner shell 12 compresses the buffer member 13. In particular, in a preferred embodiment, in a preset state, the buffer 13 applies a bias towards the fourth end 12b to the first inner shell 12, causing the first protrusion 121 to abut against the retaining ring 112; when the impact force caused by the engagement of the first connector 1 and the second connector 2 causes the first inner shell 12 to move in the direction of compressing the buffer 13, the first protrusion 121 can separate from the retaining ring 112.

[0036] Optionally, at or near the fourth end 12b, the inner side of the first inner shell 12 has an inwardly extending first inner protrusion 122, which defines an extreme position of the first valve core 14 during movement. When the first valve core 14 moves to this extreme position, a portion of the first valve core 14 is fitted into the first inner protrusion 122, thereby closing the opening / channel of the first valve passage 12V near the fourth end 12b.

[0037] Optionally, the inner side of the first inner shell 12 has a first base 123 for allowing the first valve core 14 to move smoothly, and for the first elastic member 15 to be disposed between the first base 123 and the first valve core 14. Specifically, the first base 123 is fixed between the third end 12a and the fourth end 12b. Specifically, the first base 123 has a through hole 124 for the first valve core 14 to pass through. Specifically, the first base 123 has at least one flow channel F for fluid to pass through.

[0038] The buffer 13 is disposed between the first outer shell 11 and the first inner shell 12, particularly abutting between the inner shoulder 111 and the third end 12a of the first inner shell 12. Thus, when the first inner shell 12 moves relative to the first end 11a of the first outer shell 11, the buffer 13 can mitigate / absorb the corresponding impact force. In particular, the buffer 13 can be an elastic element that returns to its predetermined shape within a predetermined compression range. Optionally, the buffer 13 can be a wave-shaped spring sheet (such as...). Figures 1-4 (as shown) or a coil spring (such as Figure 5 (as shown), but not limited to; preferably, the elastic modulus of the buffer 13 is greater than that of the first elastic element 15 and / or the second elastic element 24. In particular, the buffer 13 has a through hole 131 communicating with the first valve passage 12V; preferably, the diameter of the through hole 131 is not smaller than the diameter of the first valve passage 12V, so that the fluid in the first valve passage 12V can flow smoothly through the through hole 131 of the buffer 13. Optionally, the buffer 13 may be made of metal, but is not limited to.

[0039] The first valve core 14 is movably connected to the inner side of the first inner shell 12, and particularly movably disposed in the first valve passage 12V. The first valve core 14 has a first head 141 for closing or opening the opening of the first valve passage 12V near the fourth end 12b. Specifically, the first valve core 14 has a first rod 142 extending from the first head 141, and preferably extending along the axial direction x. In one example, the first rod 142 passes through the through hole 124 of the first base 123, allowing the first valve core 14 to move smoothly, particularly smoothly in the axial direction x. Optionally, a seal O can be disposed on the outside of the first head 141, particularly at the position where the first head 141 is closed of the first valve passage 12V.

[0040] As in this invention Figures 1-4 In this example, although the first elastic member 15 is disposed between the first inner shell 12 and the first valve core 14, the first elastic member 15 can also be disposed between the first outer shell 11 and the first valve core 14. Specifically, the first elastic member 15 can be used to provide movement of the first head 141 in the direction of closing the first valve passage 12V. Specifically, the two ends of the first elastic member 15 are respectively disposed on the first base 123 and the first valve core 14, preferably respectively disposed on the first base 123 and the first head 141. Optionally, the first elastic member 15 can be a helical spring, but is not limited thereto.

[0041] The second connector 2 has a second outer shell 21, a second inner shell 22, a second valve core 23, and a second elastic member 24. The second inner shell 22 is movably connected to the inside of the second outer shell 21, and the inside of the second inner shell 22 has a second valve passage 22V. The second valve core 23 is disposed inside the second outer shell 21. By changing the position of the second inner shell 22, the second valve core 23 can close or open the second valve passage 22V. The second elastic member 24 is disposed within the second outer shell 21, particularly between the second inner shell 22 and the second outer shell 21, or between the second inner shell 22 and the second valve core 23. Specifically, when the second elastic member 24 is in a preset extended state, the second valve core 23 closes the second valve passage 22V of the second inner shell 22; when the second inner shell 22 moves and compresses the second elastic member 24, the second valve passage 22V of the second inner shell 22 can be opened.

[0042] The inner side of the second outer shell 21 has a second channel 21P; optionally, the second outer shell 21 and the second channel 21P extend along an axial direction x. Specifically, the second outer shell 21 has a fifth end 21a and a sixth end 21b opposite to each other, and the second channel 21P extends between the fifth end 21a and the sixth end 21b. In particular, the fifth end 21a and the sixth end 21b are arranged opposite each other in the axial direction x. In particular, the fifth end 21a is used to connect a fluid supply source, such as a fluid supply pipe or a fluid supply tank. Optionally, a seal O can be provided on the outer side of the second outer shell 21, particularly at the location where the second outer shell 21 connects to the fluid supply source. Optionally, a seal O can be provided on the inner side of the second outer shell 21, particularly at a predetermined position of the second outer shell 21 relative to the second inner shell 22. In particular, the predetermined position refers to the position of the second inner shell 22 when the second elastic member 24 is not further compressed.

[0043] The second inner shell 22 is movably connected to the inside of the second outer shell 21, and is particularly movably disposed in the second channel 21P. The inner side of the second inner shell 22 has a second valve passage 22V; optionally, the second inner shell 22 and the second valve passage 22V extend along the axial direction x. Specifically, the second inner shell 22 has a seventh end 22a and an eighth end 22b relative to the seventh end 22a, and the second valve passage 22V extends between the seventh end 22a and the eighth end 22b. In particular, the seventh end 22a and the eighth end 22b are arranged opposite each other in the axial direction x.

[0044] The second valve core 23 is disposed inside the second housing 21, particularly fixed in the second channel 21P. The second valve core 23 has a second base 231, a second head 232, and a second rod 233; the second base 231 is fixed in the second channel 21P, particularly located away from the sixth end 21b. Specifically, the second base 231 has at least one flow channel F for fluid passage. The second head 232 is used to close or open the opening of the second valve channel 22V near the eighth end 22b. The second rod 233 connects the second base 231 and the second head 232, and preferably extends along the axial direction x. Optionally, a corresponding seal O is provided on the outer side of the second head 232, particularly at the portion of the second head 232 that closes the opening of the second valve channel 22V near the eighth end 22b.

[0045] As in this invention Figures 1-4 In this example, although the second elastic member 24 is disposed between the second base 231 and the second inner shell 22, the second elastic member 24 can also be disposed between the second outer shell 21 and the second inner shell 22; it should be particularly noted that, based on the configuration of the second valve core 23 being fixed to the second outer shell 21, the second outer shell 21 and the second valve core 23 can be considered as a single unit. In particular, the second elastic member 24 can be used to provide movement of the second inner shell 22 toward closing the second valve passage 22V. Optionally, the second elastic member 24 can be a helical spring, but is not limited thereto.

[0046] Based on the aforementioned construction of the first connector 1 and the second connector 2, please refer to [further details]. Figures 2-4 This is to explain the operating mechanism of the first connector 1 and the second connector 2 during use.

[0047] Figure 2 This indicates that the first connector 1 and the second connector 2 are not in contact. Figure 3 The display shows the first connector 1 and the second connector 2 aligned and approaching each other to initial contact, with no communication between the first valve channel 12V and the second valve channel 22V; specifically, the first inner shell 12 is used to contact and push the second inner shell 22, and the second valve core 23 is used to contact and push the first valve core 14. In detail, in Figure 2 , Figure 3 In the state where there is no relative movement between the first valve core 14, the first inner shell 12 and the first outer shell 11, the first valve passage 12V is closed; there is no relative movement between the second inner shell 22 and the second valve core 23 / the second outer shell 21, the second valve passage 22V is closed.

[0048] Figure 4When the first connector 1 and the second connector 2 are aligned and continuously approaching each other, and the distance between the first connector 1 and the second connector 2 is no greater than a preset distance, the first valve passage 12V and the second valve passage 22V are connected. In particular, the distance between the first connector 1 and the second connector 2 can be defined by the first end 11a of the first connector 1 and the fifth end 21a of the second connector 2. Specifically, by pushing the second inner shell 22 towards compressing the second elastic member 24, the second inner shell 22 and the second valve core 23 are relatively moved, in particular, the second inner shell 22 and the second head 232 of the second valve core 23 are disengaged, thereby opening the second valve passage 22V. In addition, the second valve core 23 pushes the first valve core 14 to move in the direction of compressing the first elastic member 15, so that the first valve core 14 and the first inner shell 12 move relative to each other, in particular, so that the first inner shell 12 and the first head 141 of the first valve core 14 are disengaged from the contact state, thereby opening the first valve passage 12V.

[0049] In particular, the impact force on the first connector 1 generated during the process of the first inner shell 12 contacting and pushing against the second inner shell 22, and preferably including the impact force on the first connector 1 generated during the process of the second valve core 23 contacting and pushing against the first valve core 14, can push the first inner shell 12 in the direction of compressing the buffer 13. Thus, through the configuration of the buffer 13, the impact force experienced by the first connector 1 during the process of engaging with the second connector 2 to open the first valve passage 12V and the second valve passage 22V can be mitigated by the relative movement of the first inner shell 12 relative to the first outer shell 11, which compresses the buffer 13.

[0050] Please refer to Figure 5 As shown, this is another preferred embodiment of the first connector 1 of the present invention. This embodiment is similar to... Figures 1-4 Compared to the previous embodiment, the buffer 13 in this embodiment is a helical spring.

[0051] Based on the above-described quick-connect assembly structure, the present invention further proposes a quick-connect structure having, as follows: Figures 1-5 The structure of the first connector 1 is shown.

[0052] In summary, the quick connector assembly and quick connector structure of the present invention allow the first inner shell in the first connector to move relative to the first outer shell. Furthermore, through the configuration of the buffer, when the first connector is subjected to impact force, especially the impact force received by the first inner shell and / or the first valve core, the impact force can be reduced by the compression buffer of the first inner shell, thereby avoiding the risk of the first connector being damaged or leaking due to excessive impact force.

Claims

1. A quick connector structure, characterized in that, include: A first connector has: A first outer shell; A first inner shell is movably connected to the inside of the first outer shell, and the inside of the first inner shell has a first valve passage; A buffer is disposed between the first outer shell and the first inner shell to reduce the kinetic energy of the first inner shell when the first inner shell moves relative to the first outer shell and compresses the buffer. A first valve core is movably connected to the inside of the first inner shell to close or open the first valve passage; and A first elastic element is disposed between the first inner shell and the first valve core.

2. The quick connector structure as described in claim 1, characterized in that, The inner side of the first housing has an inner shoulder; the cushion is disposed on or abuts against the inner shoulder.

3. The quick connector structure as described in claim 2, characterized in that, The inner shoulder has an axially facing abutment surface, and the buffer is disposed on or abuts against the abutment surface.

4. The quick connector structure as described in claim 2, characterized in that, The first outer shell has a retaining ring disposed on the inner side of the first outer shell and encircling the outer side of the first inner shell; there is an axial gap between the retaining ring and the inner shoulder.

5. The quick connector structure as described in claim 4, characterized in that, The outer side of one end of the first inner shell has a first outwardly extending protrusion, which is disposed between the buffer and the fixing ring; when the first inner shell moves in one direction, the first outwardly extending protrusion abuts against the fixing ring; when the first inner shell moves in another direction opposite to the first direction, the first inner shell compresses the buffer.

6. The quick connector construction as described in claim 4, characterized in that, The first housing has a seal disposed between the retaining ring and the inner shoulder.

7. The quick connector construction as described in any one of claims 1 to 6, characterized in that, The buffer is either a wave-shaped spring or a helical spring.

8. The quick connector construction as described in claim 7, characterized in that, The elastic coefficient of the buffer is greater than that of the first elastic element.

9. The quick connector construction as described in claim 7, characterized in that, The buffer has a through hole communicating with the first valve channel, and the diameter of the through hole is not smaller than the diameter of the first valve channel.

10. A quick-connect assembly having a first connector as claimed in any one of claims 1 to 9, characterized in that, And includes: A second connector, having: A second outer shell; A second inner shell is movably connected to the inner side of the second outer shell, and the inner side of the second inner shell has a second valve passage; A second valve core is disposed inside the second housing; the second valve core closes or opens the second valve passage by changing the position of the second inner housing; and A second elastic element is disposed between the second inner shell and the second outer shell, or between the second inner shell and the second valve core.

11. The quick connector assembly as claimed in claim 10, characterized in that, When the first connector and the second connector are in a state of separation and then align and approach each other to the initial contact state, there is no relative movement between the first valve core, the first inner shell and the first outer shell, and the first valve passage is closed; and there is no relative movement between the second inner shell and the second valve core, and the second valve passage is closed.

12. The quick connector assembly as claimed in claim 10, characterized in that, When the first connector and the second connector are aligned with each other and continuously approach each other, such that the distance between the first connector and the second connector is no greater than a preset distance, the first inner shell pushes the second inner shell to move in the direction of compressing the second elastic member, so as to open the second valve passage; and the second valve core pushes the first valve core to move in the direction of compressing the first elastic member, so as to open the first valve passage; the first valve passage and the second valve passage are connected.

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