Quick coupler structure and quick coupler assembly

Abstract

A quick coupler structure is adaptive for solving the problem that the conventional quick coupler is easily damaged by impact forces. The structure includes a first coupler having a first outer shell, a first inner shell, a buffer member, a first valve core and a first elastic member. The first inner shell is movably connected to the interior of the first outer shell, with a first valve passage inside the first inner shell. The buffer member is disposed between the first outer shell and the first inner shell, and is configured 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 member. The first valve core is movably connected inside the first inner shell to open or close the first valve passage. The first elastic member is disposed between the first inner shell and the first valve core. Through the above configuration, the present invention achieves the effect of reducing the impact force exerted on the first coupler.

Description

Technical Field

[0001] This invention relates to a connector, and more particularly to a quick connector construction and quick connector assembly. Prior 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 cooling distribution unit and 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 connectors, excessive impact force during quick connector connection, especially due to the inertia of the weight of the equipment mounted on the rack, may cause damage or leakage to the quick connectors.

[0004] In view of this, conventional quick couplings do indeed need to be improved. 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-connect assembly that can reduce 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," and "end," 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 the concept of a single also includes the case of a plural, unless it clearly means otherwise.

[0009] The terms "first," "second," ... and "Nth" used throughout this invention are primarily used to distinguish descriptions of different elements or features (such as elements, directions, or steps, etc.) and do not indicate the maximum or minimum number of such elements or features possessed by a corresponding subject or method, nor do they imply any order of precedence.

[0010] The terms "combination," "integration," or "assembly" used throughout this invention mainly include those that can be separated without damaging the components after connection, or those that make the components inseparable after connection. These are terms that those with ordinary knowledge in the art can choose 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 having an inner shoulder inside the first outer shell, the inner shoulder having an abutment surface facing axially; 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, and disposed on or abutting the abutment surface of the inner shoulder, the buffer member being used to reduce the kinetic energy of the first inner shell when the first inner shell moves relative to the first outer shell and the buffer member is compressed; 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] Accordingly, the quick connector structure of the present invention allows the first inner shell of the first connector to move relative to the first outer shell. Furthermore, through the arrangement of the buffer, when the first connector is subjected to impact forces, particularly the impact force received by the first inner shell and / or the first valve core, the impact force can be mitigated by the first inner shell compressing the buffer, thereby reducing the risk of damage or leakage to the first connector due to excessive impact forces. Moreover, through the arrangement of the inner shoulder and the abutment surface, the buffer can be easily positioned between the first outer shell and the first inner shell, and can primarily be used to absorb axial impact forces, thus reducing the risk of damage or leakage to the first connector due to excessive impact forces.

[0013] 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 through 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.

[0014] 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 arrangement of 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 absorbed and mitigated immediately by the buffer.

[0015] 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.

[0016] 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.

[0017] The spring constant of the buffer is greater than that of the first elastic element. Thus, by appropriately configuring the size and actuation stroke of the buffer and the first elastic element according to their respective spring constants, 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.

[0018] The buffer element 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. This ensures that the fluid in the first valve channel flows smoothly through the through hole.

[0019] 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.

[0020] Accordingly, the quick-connect assembly of the present invention allows the first inner shell of 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 forces, particularly the impact force received by the first inner shell and / or the first valve core, the impact force can be mitigated by the first inner shell compressing the buffer, thereby reducing the risk of damage or leakage to the first connector due to excessive impact forces. Additionally, the relationship between the first inner shell and the second inner shell, and the relationship between the second valve core and the first valve core, allows for the control of whether the first valve passage and the second valve passage connector are connected.

[0021] 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.

[0022] 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. Simple Explanation of the Diagram

[0023] [Figure 1] An exploded perspective view of a preferred embodiment of the quick connector assembly of the present invention. [Figure 2] As shown in Figure 1, the first joint and the second joint are separate structural cross-sectional views. [Figure 3] Continuing from Figure 2, the first joint and the second joint are in initial contact structural cross-sectional view. [Figure 4] Continuing from Figure 3, this is a structural 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. Implementation

[0024] 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 conjunction with 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.

[0025] Please refer to Figures 1-4, which are preferred embodiments of the quick-connect assembly of the present invention. The assembly includes 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 in a specific position range (as shown in Figure 4 of the present invention), the first connector 1 and the second connector 2 are connected to allow fluid to flow. The fluid can be a gas or a liquid, especially a coolant.

[0026] The first connector 1 has 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.

[0027] 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.

[0028] 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, in particular on or abut against the abutment surface A, so that when the first inner shell 12 compresses the buffer 13, in particular 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 avoiding 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.

[0029] 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.

[0030] Optionally, the first housing 11 may further include a seal 113, which is 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.

[0031] 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.

[0032] 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 fixing 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 fixing 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.

[0033] 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.

[0034] 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.

[0035] 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 (as shown in Figures 1-4) or a coil spring (as shown in Figure 5), and is not limited thereto; preferably, the elastic coefficient 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 thereto.

[0036] 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.

[0037] As illustrated in Figures 1-4 of this invention, 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. In particular, the first elastic member 15 can be used to provide the first head 141 with movement 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] As illustrated in Figures 1-4 of this invention, 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 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. Specifically, the second elastic member 24 can be used to provide movement of the second inner shell 22 in the direction of closing the second valve passage 22V. Optionally, the second elastic member 24 can be a helical spring, but is not limited thereto.

[0043] Based on the above-described structure of the first connector 1 and the second connector 2, please also refer to Figures 2 to 4 to explain the operating mechanism of the first connector 1 and the second connector 2 during use.

[0044] Figure 2 shows the first connector 1 and the second connector 2 in a non-contact state. Figure 3 shows the first connector 1 and the second connector 2 aligned and approaching each other to initial contact. The first valve passage 12V and the second valve passage 22V are not connected. In particular, 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. Specifically, in the states shown in Figures 2 and 3, there is no relative movement between the first valve core 14, the first inner shell 12, and the first outer shell 11, and 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, and the second valve passage 22V is closed.

[0045] Figure 4 shows that 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, in which case 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 in the direction of compressing the second elastic member 24 through the first inner shell 12, 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 from the contact state, thereby opening the second valve passage 22V. Furthermore, the second valve core 23 pushes the first valve core 14 to move in the direction of compressing the first elastic member 15, causing the first valve core 14 and the first inner shell 12 to move relative to each other, in particular causing the first inner shell 12 and the first head 141 of the first valve core 14 to disengage from the contact state, thereby opening the first valve passage 12V.

[0046] 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 received 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.

[0047] Please refer to Figure 5, which is another preferred embodiment of the first connector 1 of the present invention. Compared with the embodiments in Figures 1 to 4, the buffer 13 in this embodiment is a helical spring.

[0048] Based on the above-described quick connector assembly structure, the present invention further proposes a quick connector structure having the structure of the first connector 1 as shown in Figures 1 to 5.

[0049] 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.

[0050] Although the present invention has been disclosed using the preferred embodiments described above, it is not intended to limit the invention. Any modifications and alterations made by those skilled in the art to the above embodiments without departing from the spirit and scope of the invention are still within the scope of protection of the present invention. Therefore, the scope of protection of the present invention includes all changes within the meaning and equivalent scope of the appended claims. Furthermore, when the above embodiments can be combined, the present invention includes any combination of implementations.

[0051] 1: First connector

[0052] 11: First outer shell

[0053] 111: Inner shoulder area

[0054] 112: Fixing ring

[0055] 113: Seals

[0056] 11a: First end

[0057] 11b: Second end

[0058] 11P: First Channel

[0059] 12: First Inner Shell

[0060] 121: First convex part

[0061] 122: First inner convex part

[0062] 123: First Pedestal

[0063] 124: Perforation

[0064] 12a: Third end

[0065] 12b: Fourth end

[0066] 12V: First valve channel

[0067] 13: Buffer

[0068] 131: Through hole

[0069] 14: First valve core

[0070] 141: First Head

[0071] 142: First section of the pole

[0072] 15: First elastic element

[0073] 2: Second connector

[0074] 21: Second outer shell

[0075] 21a: Fifth end

[0076] 21b: Sixth end

[0077] 21P: Second Channel

[0078] 22: Second inner shell

[0079] 22a: Seventh end

[0080] 22b: Eighth end

[0081] 22V: Second valve channel

[0082] 23: Second valve core

[0083] 231: Second Plinth

[0084] 232: Second Head

[0085] 233: Second part of the rod

[0086] 24: Second elastic element

[0087] A: Contact surface

[0088] F: Flow channel

[0089] g: gap

[0090] O: Seal

[0091] x: Axial direction

Claims

1. A quick connector structure comprising: a first connector having: a first housing having an inner shoulder on its inner side, the inner shoulder having an axially facing abutment surface; 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 passage; a buffer member disposed between the first housing and the first inner housing, and disposed on or abutting the abutment surface of the inner shoulder, the buffer member being used to reduce the kinetic energy of the first inner housing when the first inner housing moves relative to the first housing and the buffer member is compressed; a first valve core movably connected to the inner side of the first inner housing to close or open the first valve passage; and a first elastic member disposed between the first inner housing and the first valve core.

2. As in request item 1, the quick connector construction, wherein, 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.

3. The quick connector construction as described in request item 2, wherein, 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.

4. The quick connector construction as described in claim 2, wherein, The first housing has a seal disposed between the retaining ring and the inner shoulder.

5. The quick connector construction as described in any of requests 1 to 4, wherein, The buffer is either a wave-shaped spring or a helical spring.

6. As in claim 5, the quick connector construction, wherein, The elastic coefficient of the buffer is greater than that of the first elastic element.

7. As in claim 5, the quick connector construction, wherein, 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.

8. A quick-connect assembly having a first connector as claimed in any one of claims 1 to 7, and comprising: a second connector having: a second housing; a second inner housing movably connected to the inner side of the second housing, the inner side of the second inner housing having a second valve passage; a second valve core disposed on the inner side of the second housing; the second valve core closing or opening the second valve passage by means of a change in the position of the second inner housing; and a second elastic member disposed between the second inner housing and the second housing, or disposed between the second inner housing and the second valve core.

9. The quick connector assembly as described in request item 8, wherein, 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.

10. The quick-connect assembly as requested in item 8, wherein, 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 in communication.

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