Quick-plug connector

Abstract

The utility model relates to the field of machinery, in particular to a fluid connector, in particular to a quick plug connector, which comprises a female head and a male head, the female head comprises a female head main body, a female head valve core, a female head connecting piece, a female head guide sleeve, a first spring, a female head sheath and a second spring; the male head comprises a male head body, a male head valve element and a third spring. According to the utility model, the first sealing ring and the second sealing ring are arranged in the female connector, and when the male connector main body pushes the female connector guide sleeve, the second cylindrical surface can be always contacted and sealed with the second sealing ring, so that liquid leakage during plugging and unplugging can be effectively prevented; the first steel ball holes and the second steel ball holes are arranged in a staggered manner, so that the unlocking stroke can be prolonged during plugging and unplugging, the pause feeling of coupling and disconnecting of the connector is overcome, and one-hand operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to a fluid connector, in particular to a quick-plug connector. Background Art

[0002] In the era of large language models (LLMs), computer processor performance and power density have significantly increased, driving the demand for more efficient cooling solutions. Traditional air cooling methods are no longer able to cope with the enormous heat generated by these high-performance processors. Therefore, liquid cooling systems, with their superior thermal management capabilities, have become an ideal alternative. Liquid cooling systems absorb and remove processor heat through circulating coolant, maintaining the processor's operating temperature within a reasonable range. Connectors play a crucial role in liquid cooling systems. They connect the various components in the cooling circuit and ensure seamless fluid flow within the system. At the same time, connectors must maintain a tight seal and stability to prevent coolant leaks or abnormal system pressure. Therefore, the demands on connectors for processor liquid cooling systems are primarily reflected in the following aspects. First, high reliability is a fundamental requirement for connectors. Since LLMs often operate in mission-critical environments, connectors must exhibit extremely high reliability to ensure long-term, stable system operation. Connectors must also provide excellent sealing performance, even under long-term operation and temperature fluctuations. Ease of installation and maintenance are also key requirements for connectors. In the prior art, connectors are difficult to install and remove with one hand, may leak when plugged in or unplugged, are not convenient for use in confined spaces, and are difficult to adapt to the scale and complexity of data centers. Summary of the Invention

[0003] The purpose of the utility model is to provide a quick-plug connector, which solves the technical problems in the prior art of cooling pipe connectors that are difficult to operate efficiently with one hand and may leak during plugging and unplugging.

[0004] The quick-plug connector of the present utility model comprises:

[0005] A female connector, comprising:

[0006] The female body has a first connector at its front end and a first channel running through the front and back of the female body.

[0007] The female valve core has its front end fixed in the first channel, a connecting rod is provided in the middle of the female valve core, a rear end diameter of the female valve core is larger than the connecting rod, a first annular groove is provided on the outer side of the rear end of the female valve core, and a first sealing ring is provided in the first annular groove.

[0008] A female connector, the front end of the female connector is sleeved in the first channel, a through hole is provided in the middle of the female connector and is connected to the first channel, a second annular groove and a third annular groove are provided in the middle of the through hole from front to back, a second sealing ring is provided in the second annular groove, a third sealing ring is provided in the third annular groove, and a uniformly distributed first steel ball hole and a uniformly distributed second steel ball hole are provided on the circumference of the rear section of the through hole, the first steel ball hole and the second steel ball hole are respectively staggered and penetrated, a first steel ball is provided in the first steel ball hole, and a second steel ball is provided in the second steel ball hole.

[0009] The female guide sleeve is slidably mounted between the female connector and the female valve core.

[0010] A first spring is provided, wherein the first spring abuts between the female guide sleeve and the front end of the female valve core.

[0011] The female sheath is slidably sleeved on the rear end outside of the female connector, the rear end inside of the female sheath is provided with a first conical surface, and the rear end of the first conical surface is provided with a first cylindrical surface.

[0012] a second spring abutting between the rear end of the female connector body and the inner wall of the female connector sheath;

[0013] A male connector, comprising:

[0014] The male body has a second joint at its rear end, a second cylindrical surface at its front end, a first boss at the rear side of the second cylindrical surface, a second conical surface at the front end of the first boss, a third conical surface at the rear end of the first boss, a steel ball groove at the rear side of the first boss, a second channel running through the front and rear sides of the male body, and a thrust structure at the rear side of the second channel.

[0015] A male valve core is provided in the front end of the flow channel.

[0016] The third spring is in contact with the inner wall of the rear end of the male valve core and the male body.

[0017] Furthermore, a fourth annular groove is provided at the front end of the male valve core, and a fourth sealing ring is provided in the fourth annular groove.

[0018] Furthermore, a fifth annular groove is provided on the inner wall of the first channel of the female body, a fifth sealing ring is provided in the fifth annular groove, an internal thread is provided at the rear end of the first channel, the outer side of the front end of the female connector is a third cylindrical surface, and an external thread is provided on the rear side of the third cylindrical surface. The internal thread of the female body is screwed together with the external thread of the female connector.

[0019] Furthermore, the first joint and the second joint are pagoda joints or threaded joints.

[0020] Furthermore, the second joint is a threaded joint, a second boss is provided at the front end of the second joint, a sixth ring groove is provided at the rear end of the second boss, a sixth sealing ring is provided in the sixth ring groove, and a male color ring is provided on the front side of the second boss.

[0021] Furthermore, a seventh annular groove is opened on the rear side of the second channel, and the thrust structure includes a pressure block and a retaining spring. The outer side of the retaining spring is embedded in the seventh annular groove, the rear side of the pressure block abuts against the front side of the retaining spring, and the rear side of the third spring abuts against the front side of the pressure block.

[0022] Furthermore, a female color ring is provided on the outer side of the front end of the female sheath.

[0023] Furthermore, the inner side of the female connector is provided with a first stop at the front end of the second groove, and the outer side of the female guide sleeve is provided with a fourth conical surface, which abuts the front side of the first stop; the outer side of the female connector is provided with a second stop at the front end of the first steel ball hole, and the inner side of the female sleeve is provided with a protrusion, which abuts the front side of the second stop, and the front side of the protrusion abuts the second spring; the inner side of the front end of the male body is provided with a third stop, and the front end of the male valve core is provided with a fifth conical surface, which abuts the rear side of the third stop.

[0024] Furthermore, the diameter of the first steel ball is smaller than the diameter of the second steel ball.

[0025] Furthermore, the second steel ball hole is a waist-shaped hole.

[0026] Compared with the existing technology, the effect of the present invention is positive and obvious. The present invention sets a first sealing ring and a second sealing ring in the female connector. When the male body pushes the female guide sleeve, the second cylindrical surface can always contact and seal with the second sealing ring, which can effectively prevent leakage during plugging and unplugging. The first and second steel ball holes are arranged in a staggered manner. The steel balls are used to achieve connection locking without relying on external force after plugging and unplugging. The unlocking stroke can also be extended during plugging and unplugging, overcoming the frustration of connector coupling and disconnection, and facilitating one-handed operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the present utility model.

[0028] Figure 2 It is a schematic diagram of the male connector of the present invention.

[0029] Figure 3 It is a cross-sectional view of the present utility model.

[0030] Figure 4 It is a schematic diagram of the coupling process when the second steel ball hole of the utility model is a round hole.

[0031] Figure 5It is a schematic diagram of the disconnection process when the second steel ball hole of the utility model is a round hole.

[0032] Figure 6 It is a schematic diagram of the coupling process when the second steel ball hole of the utility model is a waist-shaped hole.

[0033] Figure 7 It is a schematic diagram of the disconnection process when the second steel ball hole of the utility model is a waist-shaped hole.

[0034] Among them, 1 is the female head, 11 is the female head body, 111 is the first joint, 112 is the first channel, 113 is the fifth sealing ring, 114 is the internal thread, 12 is the female head valve core, 121 is the connecting rod, 122 is the first sealing ring, 13 is the female head connector, 131 is the through hole, 132 is the second sealing ring, 133 is the third sealing ring, 134 is the first steel ball hole, 135 is the second steel ball hole, 136 is the first steel ball, 137 is the second steel ball, 138 is the third cylindrical surface, 139 is the external thread, 1310 is the first stop, 1311 is the second stop, 14 is the female head guide sleeve, 141 is the fourth cone surface, 15 is the first spring , 16 is the female head sheath, 161 is the first conical surface, 162 is the first cylindrical surface, 163 is the female head color ring, 164 is the raised portion, 17 is the second spring, 2 is the male head, 21 is the male head body, 211 is the second joint, 212 is the second cylindrical surface, 213 is the first boss, 214 is the second conical surface, 215 is the third conical surface, 216 is the ball groove, 217 is the second channel, 218 is the second boss, 219 is the sixth sealing ring, 2110 is the male head color ring, 2111 is the third stop, 22 is the male head valve core, 221 is the fourth sealing ring, 222 is the fifth conical surface, 23 is the third spring, 24 is the pressure block, and 25 is the retaining ring. DETAILED DESCRIPTION

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments, but the present invention is not limited thereto.

[0036] like Figure 1-Figure 3 As shown, a quick-plug connector of the present invention includes:

[0037] Female connector 1, comprising:

[0038] The female body 11 has a first connector 111 at its front end and a first channel 112 extending from front to back in the female body 1.

[0039] The female valve core 12 has its front end fixed in the first channel 112, a connecting rod 121 is provided in the middle of the female valve core 12, and the rear end diameter of the female valve core 12 is larger than the connecting rod 121. A first annular groove is provided on the outer side of the rear end of the female valve core 12, and a first sealing ring 122 is provided in the first annular groove.

[0040] The female connector 13 has its front end sleeved in the first channel 112. A through hole 131 is provided in the middle of the female connector 13 and is communicated with the first channel. A second annular groove and a third annular groove are provided in the middle of the through hole from front to back. A second sealing ring 132 is provided in the second annular groove, and a third sealing ring 133 is provided in the third annular groove. The circumference of the rear section of the through hole 131 is provided with uniformly distributed first steel ball holes 134 and uniformly distributed second steel ball holes 135. The first steel ball holes 134 and the second steel ball holes 135 are respectively arranged to be staggered front and back. A first steel ball 136 is provided in the first steel ball hole 134, and a second steel ball 137 is provided in the second steel ball hole 135.

[0041] The female guide sleeve 14 is slidably mounted between the female connector 13 and the female valve core 12.

[0042] The first spring 15 is in contact with the front end of the female guide sleeve 14 and the female valve core 12.

[0043] The female sheath 16 is slidably sleeved on the outer rear end of the female connector 13. The inner rear end of the female sheath 16 is provided with a first tapered surface 161 opening backwards. The rear end of the first tapered surface 161 is provided with a first cylindrical surface 162.

[0044] a second spring 17 , the second spring 17 abutting between the rear end of the female connector body 11 and the inner wall of the female connector sheath 16 ;

[0045] Male connector 2, comprising:

[0046] The male body 21 has a second connector 211 at its rear end, a second cylindrical surface 212 at its front end, a first boss 213 at the rear side of the second cylindrical surface 212, a second tapered surface 214 at the front end of the first boss 213, a third tapered surface 215 at the rear end of the first boss 213, a steel ball groove 216 at the rear side of the first boss 213, and a second channel 217 extending from front to back on the inner side of the male body 21.

[0047] The male valve core 22 is arranged in the front end of the second channel 217.

[0048] The third spring 23 is in contact with the inner wall of the rear end of the male valve core 22 and the male body 21 .

[0049] Furthermore, a fourth annular groove is provided at the front end of the male valve core 22 , and a fourth sealing ring 221 is provided in the fourth annular groove.

[0050] Furthermore, a fifth annular groove is provided on the inner wall of the first channel of the female body 11, a fifth sealing ring 113 is provided in the fifth annular groove, an internal thread 114 is provided at the rear end of the first channel 112, the front end outer side of the female connector 13 is a third cylindrical surface 138, and an external thread 139 is provided on the rear side of the third cylindrical surface 138. The internal thread 114 of the female body 11 is screwed together with the external thread 139 of the female connector 13.

[0051] Furthermore, the first joint 111 and the second joint 211 are pagoda joints or threaded joints.

[0052] Furthermore, the second joint 211 is a threaded joint, a second boss 218 is provided at the front end of the second joint 211, a sixth ring groove is provided at the rear end of the second boss 218, a sixth sealing ring 219 is provided in the sixth ring groove, and a male color ring 2110 is provided on the front side of the second boss 218.

[0053] Furthermore, a seventh annular groove is opened on the rear side of the second channel 217, and the thrust structure includes a pressure block 24 and a retaining spring 25, the outer side of the retaining spring 25 is embedded in the seventh annular groove, the rear side of the pressure block 24 abuts against the front side of the retaining spring 25, and the rear side of the third spring 23 abuts against the front side of the pressure block 24.

[0054] Furthermore, a female color ring 163 is provided on the outer side of the front end of the female connector sheath 16 .

[0055] Furthermore, the inner side of the female connector 13 is provided with a first stop 1310 at the front end of the second groove, and the outer side of the female guide sleeve is provided with a fourth conical surface 141, which abuts the front side of the first stop 1310; the outer side of the female connector 13 is provided with a second stop 1311 at the front end of the first steel ball hole 134, and the inner side of the female sleeve 16 is provided with a protrusion 164, which abuts the front side of the second stop 1311, and the front side of the protrusion 164 abuts the second spring 17; the inner side of the front end of the male body 21 is provided with a third stop 2111, and the front end of the male valve core 22 is provided with a fifth conical surface 222, which abuts the rear side of the third stop 2111.

[0056] Furthermore, the diameter of the first steel ball 136 is smaller than the diameter of the second steel ball 137 .

[0057] Furthermore, the second steel ball hole 135 is a waist-shaped hole.

[0058] The working principle of the present utility model is: when the female head 1 and the male head 2 are not coupled, the first spring 15 in the female head 1 presses the female head guide sleeve 14 backward, and the fourth conical surface 141 of the female head guide sleeve 14 presses against the first stop 1310 of the female head connector 13. The rear end of the female head guide sleeve 14 is embedded between the first sealing ring 122 of the female head valve core 12 and the second sealing ring 132 of the female head connector 13, so that the fluid in the first channel 112 is sealed. Under the action of the second spring 17, the rear side of the protrusion 164 of the female head sheath 16 presses against the second stop 1311; the fifth conical surface 222 of the male head valve core 22 can be set on the rear side of the fourth sealing ring 221, and the third spring 23 in the male head 1 presses the male head valve core 22 forward, so that the fifth conical surface 222 of the male head valve core 222 presses against the third stop 2111, and the fourth sealing ring 221 of the male head valve core 22 is pressed and sealed with the male head body 21, so that the fluid in the second channel 217 is sealed.

[0059] When the female connector 1 and the male connector 2 are coupled, the male connector 2 is stationary, and the female connector 1 is forced to move toward the male connector 2. The male connector body 21 enters the through hole 16 of the female connector 13. Before the male connector body 21 pushes against the female connector guide sleeve 14, the second cylindrical surface 212 of the male connector body 21 first squeezes against the second sealing ring 132 to form a seal. The male connector body 21 then continues to extend into the female connector 13. When the male connector body 21 contacts the female connector guide sleeve 14, it pushes the female connector guide sleeve 14 forward, overcoming the resistance of the first spring 15, causing the female connector guide sleeve 14 to disengage from the first sealing ring 122 of the female connector valve core 12. Simultaneously, the rear end of the female connector valve core 12 pushes the male connector valve core 22 backward within the male connector body 21, overcoming the resistance of the third spring 23. The fourth sealing ring 221 disengages from the male connector body 21, releasing the seal of the male connector 1, thereby allowing fluid communication between the first channel 112 and the second channel 217. The front end of the female valve core 12 and the rear end of the male valve core 22 can be provided with flow grooves to facilitate fluid flow. When the female guide sleeve 14 is released from the first sealing ring 132, the second cylindrical surface 212 of the male body 21 has already formed a seal with the second sealing ring 132, effectively preventing leakage. The second cylindrical surface 212 then continues forward to press against the first sealing ring 132 to form a seal, further enhancing the sealing effect.

[0060] The first steel ball hole 134 and the second steel ball hole 135 can be tapered holes with the large end facing the outside of the female connector 13 and the small end facing the inside of the female connector 14. The diameter of the first steel ball 136 is between the large end diameter and the small end diameter of the first steel ball hole 134, and the diameter of the second steel ball 137 is between the large end diameter and the small end diameter of the second steel ball hole 135, which can prevent the first steel ball 135 and the second steel ball 136 from falling out from the inside of the female connector 13.

[0061] When the female connector 1 is coupled to the male connector 2, the female connector 1 is moved toward the male connector 2 by the external force F1 applied by the operator. The second tapered surface 214 on the front side of the first boss 213 of the male connector body 21 first lifts the second steel ball 137. The second steel ball 137 presses against the first tapered surface 161, causing the female connector housing 21 to move forward, overcoming the resistance of the second spring 17. The first steel ball 136 then contacts the first tapered surface 161. When the first and second steel balls 136, 137 fall into the steel ball groove 216, the second spring 17 pushes the female connector housing 21 back to its original position, confining the first and second steel balls 136, 137 within the steel ball groove 216. The first cylindrical surface 162 prevents the first and second steel balls 136, 137 from escaping from the outside.

[0062] When the female connector 1 is disconnected from the male connector 2, the female connector sheath 16 is pulled forward by the external force F2 applied by the operator. The female connector 1 moves forward under the action of the first spring 15 and the third spring 23. The first steel ball 135 is lifted by the third conical surface 215 of the male connector body 21. The first steel ball 135 first contacts the first conical surface 161. The female connector 1 continues to move forward, and the second steel ball 136 is lifted by the third conical surface 215 of the male connector body 21. The second steel ball 136 then contacts the first conical surface 161. When the second steel ball 137 reaches the second cylindrical surface 212, the female connector 1 and the male connector 2 are disconnected. The two layers of steel balls can extend the unlocking travel and reduce the sense of frustration during disconnection.

[0063] As an example, the diameter of the first steel ball 136 is smaller than the diameter of the second steel ball 137. Figure 4 As shown, the male body 21 is inserted into the female connector 13, and the second conical surface 214 first lifts the second steel ball 137 to move the female sleeve 16 forward. After the second steel ball 137 passes the first boss 213, the first steel ball 136 passes the first boss 213. At this time, the first steel ball 136 has a smaller height and presses against the first conical surface 161, so that the female sleeve 16 moves backward a short distance, reducing part of the pressure of the second spring 17. After the first steel ball 136 enters the steel ball groove 216, the female sleeve 16 is completely reset. When the male 2 is disconnected from the female 1, as shown in FIG. Figure 5 As shown, the third conical surface 215 can first lift the first steel ball 136. The first steel ball 136 first contacts the first conical surface 161 of the female connector housing 16 at a relatively low height and then passes through the first boss 213. The female connector housing 16 then moves forward a distance. The second steel ball 137 contacts the first conical surface 161 of the female connector housing 16 at a relatively high height and passes through the first boss 213. When the second steel ball 137 reaches the second cylindrical surface 212, the female connector 1 and the male connector 2 are disconnected. The combination of the large and small steel balls can compress and release the elastic force of the second spring 17 in stages, further reducing the sense of frustration during coupling and disconnection.

[0064] When the second steel ball hole 135 is a waist-shaped hole, the coupling process is as follows: Figure 6 As shown, the second steel ball 136 is first pushed to the front end of the waist-shaped hole by the second conical surface 214, and then lifted by the second conical surface 214, pushing the female head sleeve 16 back. The second steel ball 136 passes through the first boss 213 and enters the steel ball groove 216. Then the first steel ball 135 keeps the female head sleeve 16 in position until the first steel ball 135 passes through the first boss 213 and enters the steel ball groove 216. The female head sleeve 16 moves backward and resets. The first steel ball 135 and the second steel ball 136 can be confined in the steel ball groove 216 at the same time. The disconnection process is as shown in FIG. Figure 7 As shown, during the disconnection process, when the first steel ball 136 is lifted by the third tapered surface 215 and contacts the first tapered surface 161, the second steel ball 137 is pushed to the rear end of the waist-shaped hole and confined within the steel ball groove 216. When the first steel ball 136 reaches the second tapered surface 214, the second steel ball 137 is gradually lifted by the third tapered surface 215. When the second steel ball 137 reaches the second cylindrical surface 212, the female connector sheath 16 is completely reset, and the female connector 1 and the male connector 2 are disconnected. This can further extend the disconnection stroke, making the disconnection process smooth and without any sense of frustration.

[0065] When the female connector body 11 and the female connector 13 are screwed together via the internal threads 114 and external threads 139, the fifth sealing ring 113 creates a seal against the third cylindrical surface 138, preventing fluid leakage from the threaded seal. The first connector 111 of the female connector 1 can be a pagoda head for direct connection to a fluid pipeline. The second connector 211 of the male connector 2 can be a threaded head for threaded connection to a device. When the second connector 211 is connected to the device, the sixth sealing ring 219 presses against the outside of the device's connection portion, providing a seal. The female connector color ring 163 and the male connector color ring 2110 can serve as identification.

Claims

1. A quick-connect connector, characterized in that: include: A female connector (1), comprising: A female head body (11), wherein a first connector (111) is provided at the front end of the female head body (11), and a first channel (112) is provided in the female head body (11) that passes through the front and back. A female valve core (12), wherein the front end of the female valve core (12) is fixed in the first channel (112), a connecting rod (121) is provided in the middle of the female valve core (12), the rear end of the female valve core (12) has a diameter larger than the connecting rod (121), a first annular groove is provided on the outer side of the rear end of the female valve core (12), and a first sealing ring (122) is provided in the first annular groove, A female connector (13), wherein the front end of the female connector (13) is sleeved in the first channel (112), a through hole (131) penetrating the first channel is provided in the middle of the female connector (13), a second annular groove and a third annular groove are provided in sequence from front to back in the middle of the through hole, a second sealing ring (132) is provided in the second annular groove, a third sealing ring (133) is provided in the third annular groove, a uniformly distributed first steel ball hole (134) and a uniformly distributed second steel ball hole (135) are provided on the circumference of the rear section of the through hole (131), the first steel ball hole (134) and the second steel ball hole (135) are respectively provided in a front-to-back staggered arrangement, a first steel ball (136) is provided in the first steel ball hole (134), and a second steel ball (137) is provided in the second steel ball hole (135), A female guide sleeve (14) is slidably mounted between the female connector (13) and the female valve core (12). A first spring (15), the first spring (15) abuts between the female guide sleeve (14) and the front end of the female valve core (12), A female head sheath (16) is slidably sleeved on the outer side of the rear end of the female head connector (13), and a first conical surface (161) opening toward the rear is provided on the inner side of the rear end of the female head sheath (16), and a first cylindrical surface (162) is provided at the rear end of the first conical surface (161). a second spring (17), the second spring (17) being in contact between the rear end of the female connector body (11) and the inner wall of the female connector sheath (16); A male connector (2), comprising: A male body (21), wherein the rear end of the male body (21) is provided with a second joint (211), the front end of the male body (21) is provided with a second cylindrical surface (212), the rear side of the second cylindrical surface (212) is provided with a first boss (213), the front end of the first boss (213) is a second conical surface (214), the rear end of the first boss (213) is a third conical surface (215), the rear side of the first boss (213) is provided with a steel ball groove (216), the inner side of the male body (21) is provided with a second channel (217) that passes through from front to back, and the rear side of the second channel (217) is provided with a thrust structure, A male valve core (22) is provided in the front end of the second channel (217). A third spring (23) is abutted between the male valve core (22) and the thrust structure.

2. The quick-connect connector according to claim 1, wherein: A fourth annular groove is provided at the front end of the male valve core (22), and a fourth sealing ring (221) is provided in the fourth annular groove.

3. The quick-connect connector according to claim 1, wherein: A fifth annular groove is provided on the inner wall of the first channel of the female main body (11), a fifth sealing ring (113) is provided in the fifth annular groove, an internal thread (114) is provided at the rear end of the first channel (112), the front end outer side of the female connector (13) is a third cylindrical surface (138), the rear side of the third cylindrical surface (138) is provided with an external thread (139), and the internal thread (114) of the female main body (11) is screwed together with the external thread (139) of the female connector (13).

4. The quick-connect connector according to claim 1, wherein: The first joint (111) and the second joint (211) are pagoda joints or threaded joints.

5. The quick-connect connector according to claim 1, wherein: The second joint (211) is a threaded joint, the front end of the second joint (211) is provided with a second boss (218), the rear end of the second boss (218) is provided with a sixth ring groove, a sixth sealing ring (219) is provided in the sixth ring groove, and the front side of the second boss (218) is provided with a male color ring (2110).

6. The quick-connect connector according to claim 1, wherein: A seventh annular groove is formed on the rear side of the second channel (217), and the thrust structure includes a pressure block (24) and a retaining spring (25). The outer side of the retaining spring (25) is embedded in the seventh annular groove, the rear side of the pressure block (24) abuts against the front side of the retaining spring (25), and the rear side of the third spring (23) abuts against the front side of the pressure block (24).

7. The quick-connect connector according to claim 1, wherein: A female color ring (163) is provided on the outer side of the front end of the female sheath (16).

8. The quick-connect connector according to claim 1, wherein: The inner side of the female connector (13) is provided with a first stop (1310) at the front end of the second groove, and the outer side of the female guide sleeve is provided with a fourth conical surface (141), and the fourth conical surface (141) abuts the front side of the first stop (1310); the outer side of the female connector (13) is provided with a second stop (1311) at the front end of the first steel ball hole (134), and the inner side of the female sleeve (16) is provided with a protrusion (164), and the protrusion (164) abuts the front side of the second stop (1311), and the front side of the protrusion (164) abuts the second spring (17); the inner side of the front end of the male body (21) is provided with a third stop (2111), and the front end of the male valve core (22) is provided with a fifth conical surface (222), and the fifth conical surface (222) abuts the rear side of the third stop (2111).

9. The quick-connect connector according to claim 1, wherein: The diameter of the first steel ball (136) is smaller than the diameter of the second steel ball (137).

10. The quick-connect connector according to claim 1, wherein: The second steel ball hole (135) is a waist-shaped hole.

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