Self-locking fluid joint structure with function of uniformly distributing locking force and unlocking force

Abstract

The utility model discloses a self-locking fluid connector structure with a function of uniformly distributing locking force and unlocking force, and belongs to the technical field of fluid pipeline connecting pieces. Which comprises a male plug mechanism, a female plug mechanism, a male and female plug locking and unlocking mechanism and a fluid pipeline connector, and is characterized in that the male and female plug locking and unlocking mechanism comprises a lock ring, a reset spring, an unlocking sliding sleeve, an unlocking sliding sleeve limiting piece and a set of locking and unlocking pin rollers, the lock ring is arranged on the female plug mechanism, the reset spring is arranged outside the female plug mechanism in a sleeving mode, and the unlocking sliding sleeve limiting piece is arranged on the unlocking sliding sleeve limiting piece. The unlocking sliding sleeve is arranged outside the female plug mechanism through the unlocking sliding sleeve cavity, the left end of the unlocking sliding sleeve cavity is provided with an unlocking sliding sleeve left-right displacement stroke limiting rib, the unlocking sliding sleeve limiting piece is embedded in the female plug mechanism, and the number of the locking and unlocking pin rollers in one set is three. The method has the advantages that the operation balance and convenience are embodied; the problems of looseness, vibration and deflection in a locking state due to inconsistent stress and loss of rapidness and convenience in unlocking are avoided; and the rationality of the structure is well reflected.

Description

Technical Field

[0001] This utility model belongs to the technical field of fluid pipeline connectors, specifically relating to a self-locking fluid connector structure with uniform distribution of locking and unlocking forces. Background Technology

[0002] As is well known in the industry, servers such as file servers, database servers, application servers, web servers, cloud servers, and backup servers play a crucial role in networks. Due to their ability to store and process vast amounts of data and information across the network, they are considered the soul of the network. Servers provide various services to client computers, such as centralized computing, information dissemination, and data management. Because servers typically operate 24 / 7, fluid cooling (usually water cooling) is required to improve their heat dissipation efficiency, reduce energy consumption, decrease noise, and adapt to different working environments. Therefore, the aforementioned fluid connectors are needed in systems implementing fluid cooling. Furthermore, in the new energy industry, as supporting infrastructure, supercharging piles and energy storage equipment also require fluid cooling to accommodate the high heat generated by high-voltage platforms. Additionally, to meet the high range design requirements of electric vehicles and ensure that more space within the battery pack can be used for cell placement to improve volume utilization, corresponding fluid connector structures are also used in the cooling water circuits of liquid-cooled power batteries to expedite assembly.

[0003] The technical information of the aforementioned fluid connector can be found in published Chinese patent documents. A typical example is CN202011236U, which discloses "a quick-connect connector for a water cooling system in a data processing center." This connector includes a male connector body and a female connector body. A pair of grooves spaced 180° apart are formed on the male connector body and around its circumference. Each groove contains a pressing component consisting of a spring and a pressure block. In return, a pair of through slots are formed on the female connector body at positions corresponding to the grooves. When the male and female connector bodies are inserted, the operator presses the pressing components with two fingers. When the male connector body is inserted to the point where the pair of pressing components corresponds to the pair of through slots, the pressure block automatically enters the through slot under the action of the spring in the pressing component, completing the insertion connection. The reverse is also true. While the patent delivers on the advantages described in paragraphs 0021-0022 of its specification, it has the following drawbacks: First, there is a risk of single-point failure because the pair of pressing components act independently. When one fails, only one side is subjected to force, making it impossible to avoid misalignment or loosening of the connection. Moreover, it is difficult or impossible to guarantee that the force applied to the pressing components and the fatigue resistance (fatigue of the spring) of the connection after repeated insertion and removal over a long period of time will be consistent. Second, the pressing components need to be pressed simultaneously to be pulled out, which may not be possible if the space is narrow or if gloves are worn. Third, repeated friction between the pressure block and the through groove can easily lead to contact wear, inevitably resulting in loosening after prolonged use. Fourth, when the male and female heads are separated, the pair of pressing components are exposed and lack protection, which may lead to detachment from the groove and render them unusable. Furthermore, CN222334783U describes a "self-locking quick-change fluid connector." According to paragraph 0027 of the patent's specification, although the positioning locking plate can lock or unlock the inserted male connector, it has the following shortcomings: First, because the positioning locking plate is subjected to force on one side, it is prone to wear or failure; second, stress concentration causes the contact surface of the arc-shaped claw to wear easily after repeated use, affecting the reliability of locking the male connector; third, there is an issue of uneven load distribution, making it impossible to distribute the locking force relatively evenly.

[0004] The main reasons for designing the connector to be both pluggable and detachable are, but are not limited to, the following: equipment maintenance and repair, modular component assembly and disassembly, removal of media residue or contamination for easy cleaning, emergency disconnection (such as sudden leaks), space saving, and avoiding interference. Furthermore, if the male and female connectors are threaded together, disassembly and assembly would be time-consuming and impossible to perform by hand, among other considerations.

[0005] In summary, exploring a self-locking fluid joint that can overcome the above-mentioned shortcomings and make the structure more reasonable and the function more complete is of great positive significance. The technical solution to be introduced below is produced in this context. Utility Model Content

[0006] The objective of this invention is to provide a self-locking fluid connector structure that facilitates the smooth and reliable connection or separation of the male and female plug mechanisms by hand, thereby enhancing operational convenience; it also ensures a balanced distribution of locking and unlocking forces between the male and female plug mechanisms, preventing loosening, vibration, or wobbling in the locked state due to inconsistent forces, and avoiding slow and efficient unlocking; and it further enhances structural rationality by ensuring effortless separation of the male and female plug mechanisms.

[0007] The present invention achieves its objective by providing a self-locking fluid connector structure with uniformly distributed locking and unlocking forces. The structure includes a male plug mechanism, a female plug mechanism, a male-female plug locking / unlocking mechanism, and a fluid pipeline connector. The male and female plug mechanisms are symmetrically positioned and are connected or disconnected from each other under the action of the male-female plug locking / unlocking mechanism. The male-female plug locking / unlocking mechanism is located on the female plug mechanism. The fluid pipeline connector is connected to the end of the female plug mechanism opposite to the male plug mechanism. The key feature is that the male-female plug locking / unlocking mechanism… The locking and unlocking mechanism includes a locking ring, a return spring, an unlocking sleeve, an unlocking sleeve limiting member, and a set of locking and unlocking rollers. The locking ring is laterally displaced on the female plug mechanism. The return spring is sleeved outside the female plug mechanism, with its left end abutting against the right side of the locking ring and its right end abutting against the female plug mechanism. The unlocking sleeve has an unlocking sleeve cavity extending from the left end to the right end. The unlocking sleeve is laterally displaced outside the female plug mechanism through the unlocking sleeve cavity. The unlocking sleeve is located at the left end of the unlocking sleeve cavity and circumferentially around the cavity wall. A rib for limiting the left and right displacement of the unlocking slide sleeve protrudes from the cavity wall surface. The left side of the locking ring corresponds to the right side of the rib for limiting the left and right displacement of the unlocking slide sleeve. The unlocking slide sleeve limiting member is embedded in the female plug mechanism at the left side of the locking ring. The distance between the unlocking slide sleeve limiting member and the opposite side of the locking ring constitutes the moving space of the rib for limiting the left and right displacement of the unlocking slide sleeve. The rib for limiting the left and right displacement of the unlocking slide sleeve is located within the moving space of the rib for limiting the left and right displacement of the unlocking slide sleeve. The number of a set of locking and unlocking rollers is [not specified]. Three locking and unlocking rollers, evenly spaced around the left end of the female plug mechanism and blocked by the locking ring, are positioned such that when this group of locking and unlocking rollers loses the blocking of the locking ring and enters the interior of the female plug mechanism, the male plug mechanism is in a locked state of being plugged into the female plug mechanism. When this group of locking and unlocking rollers exits the interior of the female plug mechanism and moves to the outside of the female plug mechanism between the female plug mechanism and the cavity wall of the unlocking sleeve cavity, and is blocked by the locking ring, the male plug mechanism is in a unlocked state of being unplugged from the female plug mechanism.

[0008] In a specific embodiment of this utility model, on the right side of the locking ring, at a position corresponding to the set of locking and unlocking rollers, there are locking and unlocking roller abutment grooves in an interval, the number of which is equal to the number of the set of locking and unlocking rollers.

[0009] In another specific embodiment of this utility model, the male plug mechanism includes a male plug housing, a male plug valve core return spring, a male plug valve core return spring support retaining ring, a male plug valve core return spring support retaining ring limiting snap ring, and a male plug valve core. The male plug housing has a male plug housing cavity extending from the left end to the right end for fluid passage. A male plug housing mounting and fixing thread is formed on the outer wall of the left end of the male plug housing. An external hexagonal nut for wrench assembly is formed on the outer wall of the middle part of the male plug housing. A sealing ring groove construction flange is formed on the male plug housing and located to the right of the external hexagonal nut, surrounding the circumference of the external hexagonal nut. This sealing ring groove construction flange is connected to the external hexagonal nut. The space between the opposing sides of the hexagonal nut forms a sealing ring groove, and a male and female plug mating sealing ring is embedded in this sealing ring groove. A male plug housing locking flange is formed on the outer wall of the male plug housing, located to the right of the sealing ring groove forming flange. The space between the opposing sides of the male plug housing locking flange and the sealing ring groove forming flange forms a male plug roller locking cavity. A male plug housing locking flange guide surface is formed on the male plug housing locking flange, which gradually rises from right to left. A male plug valve core return spring is disposed within the male plug housing cavity, and the left end of the male plug valve core return spring is supported on the right side of the male plug valve core return spring support retainer. The right end of the male plug valve core return spring is supported on the male plug valve core return spring support step formed on the left end of the male plug valve core. The male plug valve core return spring support retaining ring is located inside the male plug housing cavity, and the right side of the male plug valve core return spring support retaining ring abuts against the retaining ring support step surface on the cavity wall of the male plug housing cavity. The left side of the male plug valve core return spring support retaining ring abuts against the right side of the male plug valve core return spring support retaining ring limiting retaining ring. The male plug valve core return spring support retaining ring limiting retaining ring is embedded in the male plug valve core return spring support retaining ring limiting retaining ring groove on the cavity wall of the male plug housing cavity. The male plug valve core is located at the right end of the male plug housing cavity, and the right end of the male plug valve core is narrowed and... Furthermore, a male plug valve core sealing groove is formed around the circumference of the male plug valve core. A male plug valve core sealing ring is provided in the male plug valve core sealing groove to form a seal with the cavity wall of the male plug housing cavity. When the set of locking and unlocking rollers are inserted into the interior of the female plug mechanism and located in the locking cavity of the male plug rollers, the male plug housing is in a locked state of plug-in connection with the female plug mechanism. When the set of locking and unlocking rollers exits the locking cavity of the male plug rollers and moves to the outside of the female plug mechanism and is located between the outside of the female plug mechanism and the cavity wall of the unlocking slide cavity of the unlocking slide sleeve and is blocked by the locking ring, the male plug housing is in a unlocked state of being disconnected from the female plug mechanism.

[0010] In another specific embodiment of this utility model, the female plug mechanism includes a female plug housing, a slip ring return spring, a slip ring, and a female plug valve core. The female plug housing has a female plug housing cavity extending from the left end to the right end. An unlocking slip sleeve limiting member insertion groove is formed on the outer wall of the left end of the female plug housing at a position corresponding to the unlocking slip sleeve limiting member. The unlocking slip sleeve limiting member is embedded in the unlocking slip sleeve limiting member insertion groove. A return spring abutment step is formed on the outer wall of the female plug housing at a position corresponding to the right end of the return spring. The return spring is sleeved on the left end of the female plug housing and located between the outer wall of the female plug housing and the unlocking sleeve cavity wall of the unlocking slip sleeve cavity. The right end of the return spring abuts against the return spring abutment step. A number of female plug housing roller rolling ramps, equal in number to the number of the set of locking and unlocking rollers, are formed on the outer wall of the female plug housing at a position corresponding to the left side of the set of locking and unlocking rollers. A locking and unlocking roller insertion groove is formed at a position corresponding to the left side of the female plug housing roller rolling ramp. A roller protrusion hole communicating with the cavity of the female plug housing is opened at the middle of the locking / unlocking roller groove along its length. A fluid pipe connector mating step is formed on the outer wall of the right end of the female plug housing, circumferentially surrounding the housing. The left end face of the fluid pipe connector contacts the right side face of this mating step. A fluid pipe connector sealing ring groove and an outer retaining spring groove are sequentially opened on the outer wall of the female plug housing, located to the right of the fluid pipe connector mating step. A fitting for the fluid pipe connector is disposed within the sealing ring groove. The fluid pipeline connector sealing ring is sealed to the inner wall of the left end. An outer retaining spring is provided in the outer retaining spring groove for locking with the inner wall of the left end of the fluid pipeline connector. The female plug valve core is located in the female plug housing cavity and positioned at the right end of the female plug housing cavity. The slip ring return spring is located in the female plug housing cavity and is sleeved on the female plug valve core. The left end of the slip ring return spring is supported on the right end of the slip ring, and the right end of the slip ring return spring is supported on the right end of the female plug valve core. The slip ring is disposed in the female plug housing cavity with left and right displacement. The male plug housing and the female plug housing cavity are plugged and pulled together.

[0011] In another specific embodiment of this utility model, a female plug housing cavity wall sealing ring groove is formed on the cavity wall of the female plug housing cavity and around the circumference of the cavity wall. A female plug housing cavity wall sealing ring is embedded in the female plug housing cavity wall sealing ring groove. When the male plug housing of the male plug mechanism is in a locked state of being plugged into the female plug housing of the female plug mechanism, the outer wall of the male plug housing forms a sealing fit with the sealing ring of the female plug housing cavity wall. When the male plug housing is in an unlocked state of being unplugged from the female plug housing due to the rightward displacement of the unlocking slide sleeve, the restoring force of the return spring forces the slip ring to move to the left and reset. The outer wall of the slip ring forms a sealing fit with the sealing ring of the female plug housing cavity wall.

[0012] In another specific embodiment of this utility model, a female plug valve core sealing ring groove is formed in the circumferential direction at the left end of the female plug valve core, and a female plug valve core sealing ring is nested in the female plug valve core sealing ring groove. When the male plug housing of the male plug mechanism is in an unlocked state where it is disconnected from the female plug housing, the restoring force of the return spring forces the slip ring to move to the left and reset. The inner wall of the slip ring forms a sealing fit with the sealing ring of the cavity wall of the female plug housing.

[0013] In a further specific embodiment of this utility model, a return spring support step is formed at the right end of the female plug valve core and at a position corresponding to the right end of the slip ring return spring. The right end of the slip ring return spring is supported on the left side of the support step of the return spring support step. A step left side mating cavity is formed at the right end of the female plug housing cavity and at a position corresponding to the periphery of the return spring support step. The periphery of the left side of the support step mates with the step left side mating cavity.

[0014] In a further specific embodiment of this utility model, a retaining ring groove is formed at the right end port of the female plug housing cavity of the female plug housing and around the circumference. A female plug valve core limiting retaining ring is embedded in the retaining ring groove, and the right end face of the female plug valve core contacts the left side face of the female plug valve core limiting retaining ring.

[0015] In another specific embodiment of this utility model, the inner wall of the left end of the fluid pipe connector is sealed with the sealing ring of the fluid pipe connector. On the inner wall of the left end of the fluid pipe connector, and at a position to the right of the sealing ring of the fluid pipe connector, an outer retaining spring insertion groove and a pipe connector sealing ring groove are sequentially formed. A pipe connector sealing ring for forming a seal with the outer wall of the right end of the female connector housing is provided in the sealing ring groove. The outer retaining spring is inserted into the outer retaining spring insertion groove. A frustum conical wing is formed on the outer wall of the right end of the fluid pipe connector. The right end of the fluid pipe connector is formed in a straight line or a U-shape. When the right end of the fluid pipe connector is formed in a U-shape, the frustum conical wing is formed on the outer wall of the vertical part of the U-shape.

[0016] In another specific embodiment of this utility model, a male plug housing guide slope is formed on the cavity wall at the left end of the female plug housing cavity and around the perimeter of the female plug housing. The male plug housing locking flange guide surface and the male plug housing guide slope form a mutually cooperating guide relationship.

[0017] The technical advantages of the present invention are as follows: Since the female plug mechanism can be automatically and reliably locked by applying a force towards the male plug mechanism without the need for any tools, and since the male and female plug locking / unlocking mechanisms can be automatically separated by simply moving them towards the female plug mechanism by hand, this greatly contributes to the balance and convenience of operation. The use of a set of locking and unlocking rollers ensures a balanced distribution of locking force between the male and female plug mechanisms when locking each other, and a similarly balanced distribution of force when unlocking, thus avoiding loosening, vibration, and wobble caused by inconsistent forces, and preventing a lack of speed and efficiency in unlocking. Furthermore, the structural rationality is well demonstrated by easily moving the unlocking sleeve when separating the male and female plug mechanisms. Attached Figure Description

[0018] Figure 1 This is a structural diagram of an embodiment of the present utility model;

[0019] Figure 2 for Figure 1 A cross-sectional view of the male plug mechanism shown;

[0020] Figure 3 for Figure 1 and Figure 2 A three-dimensional structural diagram of the male plug valve core of the male plug mechanism shown;

[0021] Figure 4 for Figure 1 A cross-sectional view of the female plug mechanism shown;

[0022] Figure 5 for Figure 4 A three-dimensional structural diagram of the female plug valve core of the female plug mechanism shown;

[0023] Figure 6 for Figure 1 and Figure 4 Detailed structural diagram of the roller protrusion hole shown;

[0024] Figure 7 This is a schematic diagram showing the male and female plugs of this utility model connected to each other in use. Detailed Implementation

[0025] In order to better understand the technical essence and beneficial effects of this utility model, a detailed description will be given below by way of embodiments. However, the description of the embodiments is not intended to limit the solution of this utility model. Any formal but not substantive equivalent transformations made based on the concept of this utility model should be considered within the scope of the technical solution of this utility model.

[0026] In the following description, all directional or positional concepts involving up, down, left, right, front, back, inside, and outside are based on the current position. Figure 1 The location and state are taken as a reference, and therefore should not be construed as a special limitation on the technical solution provided by this utility model.

[0027] Please see Figure 1 The diagram shows a male plug mechanism 1, a female plug mechanism 2, a male-female plug locking and unlocking mechanism 3, and a fluid pipeline connector 4. The male plug mechanism 1 and the female plug mechanism 2 are symmetrical to each other and can be plugged into or unplugged into each other under the action of the male-female plug locking and unlocking mechanism 3. The male-female plug locking and unlocking mechanism 3 is provided on the aforementioned female plug mechanism 2, and the fluid pipeline connector 4 is connected to the end of the female plug mechanism 2 that is away from the male plug mechanism 1.

[0028] The applicant needs to clarify that the concept of fluid mentioned above refers to a liquid medium, which is a liquid cooling medium. In this embodiment, the liquid cooling medium is water, but it can also be oil (such as transformer oil, white oil), fluorinated liquid, a mixture of ethylene glycol and water, deionized water, propylene glycol, or liquid nitrogen, etc.

[0029] The key technical points of the present invention are as follows: the aforementioned male and female plug locking and unlocking mechanism 3 includes a locking ring 31, a return spring 32, an unlocking sleeve 33, an unlocking sleeve limiting member 34, and a set of locking and unlocking rollers 35. The locking ring 31 is disposed on the aforementioned female plug mechanism 2 with a left-right displacement. The return spring 32 is sleeved outside the female plug mechanism 2, and the left end of the return spring 32 abuts against the right side of the locking ring 31, while the right end of the return spring 32 abuts against the female plug mechanism 2. The unlocking sleeve 33 forms an unlocking sleeve cavity 33 that extends from the left end to the right end. 1. The unlocking sleeve 33 is disposed outside the female plug mechanism 2 by left and right displacement through the aforementioned unlocking sleeve cavity 331. At the left end of the unlocking sleeve cavity 331 of the unlocking sleeve 33, and around the circumference of the cavity wall, there is an unlocking sleeve left and right displacement travel limiting rib 3311 protruding from the cavity wall surface. The left side of the aforementioned locking ring 31 corresponds to the right side of the unlocking sleeve left and right displacement travel limiting rib 3311. That is, the locking ring 31 is located on the right side of the unlocking sleeve left and right displacement travel limiting rib 3311 and the left side of the return spring 32. Between the ends, the unlocking slide limiting member 34 is embedded in the aforementioned female plug mechanism 2 at the position located to the left of the aforementioned locking ring 31. The distance between the unlocking slide limiting member 34 and the opposite side of the locking ring 31 constitutes the unlocking slide left and right displacement travel limiting rib movement space 36. The aforementioned unlocking slide left and right displacement travel limiting rib 3311 is located within the unlocking slide left and right displacement travel limiting rib movement space 36. The number of a set of locking unlocking rollers 35 is evenly distributed in a spaced manner around the left end of the aforementioned female plug mechanism 2 in the circumferential direction and is blocked by the aforementioned locking ring 31. (Also referred to as "support" or "support") When the set of locking and unlocking rollers 35 loses the resistance of the aforementioned locking ring 31 and enters the interior of the aforementioned female plug mechanism 2, the aforementioned male plug mechanism 1 is in a locked state of being plugged into the female plug mechanism 2. When the set of locking and unlocking rollers 35 exits the interior of the female plug mechanism 2 and moves to the outside of the female plug mechanism 2 between the cavity wall of the unlocking slide cavity 331 of the unlocking slide 33 and is resisted by the aforementioned locking ring 31, the aforementioned male plug mechanism 1 is in a non-locked state of being unplugged from the aforementioned female plug mechanism 2.

[0030] The applicant needs to clarify that: the aforementioned set of locking and unlocking rollers 35 protruding into the interior of the female plug mechanism 2 actually refers to the position of the middle part of the length direction of the set of locking and unlocking rollers 35 corresponding to the position of the roller protrusion hole 2151 on the female plug housing 21 that communicates with the female plug housing cavity 211, which will be described in detail below, and does not mean that the entire set of locking and unlocking rollers 35 enters the female plug housing cavity 211 of the female plug housing 21; similarly, the aforementioned set of locking and unlocking rollers 35 exiting the interior of the female plug mechanism 2 and moving to the exterior of the female plug mechanism 2 actually means that the middle part of the length direction of the set of locking and unlocking rollers 35 leaves (removes) the position of the aforementioned roller protrusion hole 2151.

[0031] In this embodiment, the aforementioned unlocking slide limiting member 34 is preferably a retaining ring, but other similar components equivalent to the retaining ring may also be used.

[0032] On the right side of the aforementioned locking ring 31, and at a position corresponding to the aforementioned set of locking and unlocking rollers 35, there are locking and unlocking roller abutment grooves 311, which are also called locking and unlocking roller support grooves, arranged at intervals.

[0033] Please see Figure 2 and Figure 3 And combined Figure 1 as well as Figure 7The aforementioned male plug mechanism 1 includes a male plug housing 11, a male plug valve core return spring 12, a male plug valve core return spring support retaining ring 13, a male plug valve core return spring support retaining ring limiting snap ring 14, and a male plug valve core 15. The male plug housing 11 has a male plug housing cavity 111 extending from the left end to the right end for fluid passage. A male plug housing mounting and fixing thread 112 is formed on the outer wall of the left end of the male plug housing 11. An external hexagonal nut 113 for engaging with a wrench for male plug assembly is formed on the outer wall of the middle part of the male plug housing 11. A sealing ring groove forming flange is formed on the male plug housing 11 and on the right side of the external hexagonal nut 113, surrounding the circumference of the external hexagonal nut 113. 114. The space between the sealing ring recess flange 114 and the opposite side of the external hexagonal nut 113 forms a sealing ring recess 115, and a male and female plug mating sealing ring 1151 is embedded in the sealing ring recess 115. As a preferred embodiment, a nut left-side sealing ring 118 is provided on the left side of the aforementioned external hexagonal nut 113. A male plug housing locking flange 116 is formed on the outer wall of the male plug housing 11 and on the right side of the sealing ring recess flange 114. The space between the male plug housing locking flange 116 and the opposite side of the sealing ring recess flange 114 forms a male plug roller locking cavity 117, and a male plug housing locking flange 116 is formed on the male plug housing locking flange 116. The male plug housing locking flange guide surface 1161 gradually rises from right to left. Because the male plug housing locking flange guide surface 1161 gradually rises from right to left, the shape of the male plug housing locking flange 116 is essentially a truncated cone with an outer diameter that gradually decreases from left to right. The male plug valve core return spring 12 is disposed within the aforementioned male plug housing cavity 111, and the left end of the male plug valve core return spring 12 is supported on the right side of the male plug valve core return spring support retaining ring 13, while the right end of the male plug valve core return spring 12 is supported on the male plug valve core return spring support step 151 formed on the left end of the male plug valve core 15. The male plug valve core return spring support retaining ring 13 is located on the male plug valve core 15. The male plug valve core return spring support retaining ring 13 is located inside the plug housing cavity 111, and its right side abuts against the retaining ring support step surface 1111 formed on the cavity wall of the male plug housing cavity 111. The left side of the male plug valve core return spring support retaining ring 13 abuts against the right side of the male plug valve core return spring support retaining ring limiting snap ring 14. The male plug valve core return spring support retaining ring limiting snap ring 14 is embedded in the male plug return spring support retaining ring limiting snap ring groove 1112 formed on the cavity wall of the male plug housing cavity 111. The male plug valve core 15 is located at the right end of the male plug housing cavity 111. A male plug valve core sealing ring groove 152 is formed at the right end of the male plug valve core 15 and around its circumference.A male plug valve core sealing ring 1521 is provided in the male plug valve core sealing ring groove 152 to form a seal with the cavity wall of the male plug housing cavity 111. When the aforementioned set of locking and unlocking rollers 35 are inserted into the interior of the aforementioned female plug mechanism 2 and located in the aforementioned male plug roller locking cavity 117, that is, when the male plug roller locking cavity 117 holds the middle part of the set of locking and unlocking rollers 35 in the length direction, the aforementioned male plug housing 11 is in a locked state of plug-in connection with the female plug mechanism 2. When the set of locking and unlocking rollers 35 exit the male plug roller locking cavity 117 and move to the outside of the female plug mechanism 2 and are located between the outside of the female plug mechanism 2 and the cavity wall of the aforementioned unlocking slide cavity 331 of the unlocking slide 33 and are blocked by the aforementioned locking ring 31, the aforementioned male plug housing 11 is in an unlocked state of being disconnected from the female plug mechanism 2. Since the insertion and withdrawal situations have been explained above, they will not be repeated.

[0034] Please see Figures 4 to 6 And combined Figure 1 and Figure 7The aforementioned female plug mechanism 2 includes a female plug housing 21, a slip ring return spring 22, a slip ring 23, and a female plug valve core 24. The female plug housing 21 has a female plug housing cavity 211 extending from the left end to the right end. On the outer wall of the left end of the female plug housing 21, corresponding to the aforementioned unlocking slip sleeve limiting member 34, an unlocking slip sleeve limiting member insertion groove 212 is formed. The aforementioned unlocking slip sleeve limiting member 34 is embedded in the unlocking slip sleeve limiting member insertion groove 212. On the outer wall of the female plug housing 21, corresponding to the right end of the aforementioned return spring 32, a return spring abutment step 213 is formed. The aforementioned return spring 32 is sleeved on the left end of the female plug housing 21. The right end of the return spring 32 abuts against the return spring abutment step 213. On the outer wall of the female plug housing 21, corresponding to the left side of the aforementioned set of locking and unlocking rollers 35, there are an equal number of female plug housing roller rolling ramps 214 for the aforementioned set of locking and unlocking rollers 35 to roll. A locking and unlocking roller groove 215 is provided on the left side of the female plug housing roller rolling ramp 214. A groove is formed at the middle of the length direction of the locking and unlocking roller groove 215. The roller protrusion hole 2151, which communicates with the aforementioned female plug housing cavity 211 and has been mentioned above, has a fluid pipe connector mating step 216 formed on the outer wall of the right end of the female plug housing 21 and around the circumference of the female plug housing 21. The left end face of the aforementioned fluid pipe connector 4 contacts the right side face 2161 of the fluid pipe connector mating step 216. On the outer wall of the female plug housing 21 and on the right side of the fluid pipe connector mating step 216, a fluid pipe connector sealing ring groove 217 and an external snap ring groove 218 are sequentially formed. A sealing ring groove 217 is provided in the fluid pipe connector sealing ring groove 217 to seal against the inner wall of the left end of the fluid pipe connector 4. The fluid pipeline connector sealing ring 2171 has an outer retaining spring 2181 in the outer retaining spring groove 218 for locking with the inner wall of the left end of the fluid pipeline connector 4. The female plug valve core 24 is located in the female plug housing cavity 211 and positioned at the right end of the female plug housing cavity 211. The slip ring return spring 22 is located in the female plug housing cavity 211 and is sleeved on the female plug valve core 24. The left end of the slip ring return spring 22 is supported on the right end of the slip ring 23, and the right end of the slip ring return spring 22 is supported on the right end of the female plug valve core 24. The slip ring 23 is disposed in the female plug housing cavity 211 with left and right displacement. The aforementioned male plug housing 11 is engaged with the female plug housing cavity 211.

[0035] Depend on Figures 4 to 5 as well as Figure 7As shown, the left end of the aforementioned female plug valve core 24 can be called the left valve head, and the right end can be called the right valve head. The left and right valve heads are connected by a valve head connecting rod 243. The aforementioned left valve head is solid, while the right valve head is hollow.

[0036] Depend on Figure 4 and Figure 6 The illustration, combined with the applicant's above description of the insertion and withdrawal mechanism 2 of the set of locking and unlocking rollers 35, confirms that the so-called insertion refers to the middle of the set of locking and unlocking rollers 35 corresponding to the... Figure 4 and Figure 6 The schematic diagram shows a long, strip-shaped roller protrusion hole 2151 communicating with the female plug housing cavity 211, so that it can be reached by the aforementioned male plug roller locking cavity 117, thus connecting the male and female plug housings 11 and 21 together (i.e., locking); when it leaves, that is, retracts from the roller protrusion hole 2151 and is blocked by the locking ring 31, the connection between the male and female plug housings 11 and 21 is released (i.e., unlocking).

[0037] A sealing groove 2111 for a female plug housing cavity 211 is formed on the cavity wall of the cavity 211 of the aforementioned female plug housing 21 and around the circumference of the cavity wall. A sealing ring 21111 for a female plug housing cavity wall is embedded in the sealing groove 2111. When the male plug housing 11 of the aforementioned male plug mechanism 1 is in a locked state of being plugged into the female plug housing 21 of the aforementioned female plug mechanism 2, the outer wall of the male plug housing 11 and the sealing ring 21111 for a female plug housing cavity wall form a sealing fit relationship. When the male plug housing 11 is in a unlocked state of being unplugged from the female plug housing 21 due to the rightward displacement of the aforementioned unlocking slide sleeve 33, the restoring force of the aforementioned return spring 22 forces the aforementioned slip ring 23 to move to the left and reset. The outer wall of the slip ring 23 and the sealing ring 21111 for a female plug housing cavity wall form a sealing fit relationship.

[0038] As a preferred embodiment, a sealing ring groove for the female plug housing cavity 211 can be formed on the cavity wall of the female plug housing cavity 211 in the circumferential direction. The sealing ring groove for the female plug housing cavity 2111 is located on the left side of the sealing ring groove 2111, and a sealing ring 2114 for the female plug housing cavity 2114 is embedded in the sealing ring groove. Thus, when the male plug housing 11 is in the locked state of being plugged into the female plug housing 21, the outer wall of the male plug housing 11 can simultaneously form a double sealing relationship with the aforementioned sealing ring 21111 and the sealing ring 2114 for the female plug housing cavity 2111.

[0039] A female plug valve core sealing ring groove 241 is formed in the circumferential direction at the left end of the aforementioned female plug valve core 24. A female plug valve core sealing ring 2411 is nested in the female plug valve core sealing ring groove 241. When the male plug housing 11 of the aforementioned male plug mechanism 1 is in an unlocked state where it is disconnected from the aforementioned female plug housing 21, the restoring force of the aforementioned return spring 22 forces the aforementioned slip ring 23 to move to the left and reset. The inner wall of the slip ring 23 forms a sealing fit with the sealing ring 21111 of the cavity wall of the aforementioned female plug housing.

[0040] At the right end of the aforementioned female plug valve core 24 and at the position corresponding to the right end of the aforementioned slip ring return spring 22, a return spring support step 242 is formed. The right end of the slip ring return spring 22 is supported on the left side surface 2421 of the support step of the return spring support step 242. At the right end of the aforementioned female plug housing cavity 21 and at the position corresponding to the periphery of the return spring support step 242, a step left side surface mating cavity 219 is formed. The periphery of the support step left side surface 2421 mates with the step left side surface mating cavity 219.

[0041] Please see Figure 4 and Figure 7 A retaining ring groove 2112 is provided at the right end port of the female plug housing cavity 211 of the aforementioned female plug housing 21 and around the circumference. A female plug valve core limiting retaining ring 21121 is embedded in the retaining ring groove 2112. The right end face of the aforementioned female plug valve core 24 is in contact with the left side face of the female plug valve core limiting retaining ring 21121.

[0042] The fluid pipe connector 4 is sealed to the inner wall of the left end with the fluid pipe connector sealing ring 2171. On the inner wall of the left end of the fluid pipe connector 4, and located to the right of the fluid pipe connector sealing ring 2171, an outer retaining spring insertion groove 41 and a pipe connector sealing ring groove 42 are sequentially provided. A pipe connector sealing ring 421 for sealing with the outer wall of the right end of the female connector housing 21 is provided in the pipe connector sealing ring groove 42. The outer retaining spring 2181 is inserted into the outer retaining spring insertion groove 41. A frustum conical wing 43 is formed on the outer wall of the right end of the fluid pipe connector 4. The right end of the fluid pipe connector 4 is formed in a straight line or a U-shape. When the right end of the fluid pipe connector 4 is formed in a U-shape, the frustum conical wing 43 is formed on the outer wall of the vertical part of the U-shape.

[0043] On the left end of the cavity wall of the female plug housing cavity 211 of the aforementioned female plug housing 21, and around the perimeter, there is a male plug housing guide slope 2113. The aforementioned male plug housing locking flange guide surface 1161 and the male plug housing guide slope 2113 form a mutually cooperating guide relationship.

[0044] Please pay attention. Figure 7 , indicating Figure 7 Arrow 5 in the diagram indicates the fluid flow condition, and Figure 7 The state shown is that the male and female plug mechanisms 1 and 2 are connected and locked to each other, that is, the male and female plug housings 11 and 21 are connected and locked to each other. In this state, the left cavity of the male plug housing cavity 111 is connected to the right end port of the fluid pipeline connector 4.

[0045] In use, use a tool such as a wrench to operate the external hex nut 113 to mate the male plug housing mounting and fixing nut 112 on the left end of the male plug housing 11 with the threaded interface on the separately equipped pipe column, and mate the right end of the fluid pipeline connector 4 with the coolant circulation hose through the truncated cone fin 43 on its outer wall.

[0046] Male and female plug mechanisms 1 and 2 are formed Figure 7 The connection process is as follows: When an external force is applied to insert the female plug mechanism 2 toward the male plug mechanism 1, under the guiding action of the aforementioned male plug housing locking flange guide surface 1161 and the male plug housing guide inclined surface 2113 formed on the cavity wall of the female plug housing cavity 211, the male plug housing locking flange guide surface 1161 pushes a set of locking and unlocking rollers 35 until the male plug housing locking flange 116 smoothly passes through the set of locking and unlocking rollers 35. At this time, the set of locking and unlocking rollers 35 rolls along the female plug housing roller rolling inclined surface 214 under the action of the return spring 32 and the locking ring 31. Figure 4 (Indicated) The locking and unlocking rollers 35 roll into the aforementioned locking and unlocking roller groove 215, and the middle part of the locking and unlocking roller 35 in the length direction corresponds to the aforementioned roller protrusion hole 2151. This state is the same as the applicant's description above, where the rollers enter the female plug housing cavity 211 of the female plug housing 21. Because the elongated roller protrusion hole 2151 communicates with the female plug housing cavity 211, the aforementioned male plug roller locking cavity 117 locks a set of locking and unlocking rollers 35 in a state of uniformly distributed locking force, realizing the connection of the male and female plug mechanisms 1 and 2 and forming a... Figure 7 The state shown.

[0047] When it is necessary to release the connection between the male and female plug mechanisms 1 and 2, i.e., to release their locking, force is applied manually to pull or move the unlocking slide sleeve 33 to the right. The left and right displacement travel limit rib 3311 (also called inner flange) of the unlocking slide sleeve pushes the locking ring 31 under the evenly distributed force. The locking ring 31 moves to the right against the reaction force of the return spring 32. At this time, a set of locking and unlocking rollers 35 are freed from the control of the locking and unlocking roller abutment groove 311 and slide out of the aforementioned roller protrusion hole 2151 along the roller rolling slope 214 of the female plug housing, that is, they exit the aforementioned male plug roller locking cavity 117. In the aforementioned state, the male and female plug mechanisms 1 and 2 are separated from each other and can be considered as two independent components.

[0048] In summary, the technical solution provided by this utility model makes up for the shortcomings of the prior art, successfully completes the invention task, and faithfully realizes the technical effects described by the applicant in the above technical effect column.

Claims

1. A self-locking fluid connector structure with uniformly distributed locking and unlocking forces, comprising a male plug mechanism (1), a female plug mechanism (2), a male-female plug locking and unlocking mechanism (3), and a fluid pipeline connector (4), wherein the male plug mechanism (1) and the female plug mechanism (2) are symmetrically positioned and mutually connected or disconnected under the action of the male-female plug locking and unlocking mechanism (3), the male-female plug locking and unlocking mechanism (3) is disposed on the female plug mechanism (2), and the fluid pipeline connector (4) is connected to the end of the female plug mechanism (2) away from the male plug mechanism (1), characterized in that: The male and female plug locking and unlocking mechanism (3) includes a locking ring (31), a return spring (32), an unlocking sleeve (33), an unlocking sleeve limiting member (34), and a set of locking and unlocking rollers (35). The locking ring (31) is disposed on the female plug mechanism (2) with a left-right displacement. The return spring (32) is sleeved on the outside of the female plug mechanism (2), and the left end of the return spring (32) abuts against the right side of the locking ring (31), while the right end of the return spring (32) abuts against the female plug mechanism (2). The unlocking sleeve (33) forms an unlocking mechanism that extends from the left end to the right end. The unlocking slide (33) is disposed outside the female plug mechanism (2) by left and right displacement through the unlocking slide cavity (331). At the left end of the unlocking slide cavity (331) of the unlocking slide (33) and around the circumference of the cavity wall, there is an unlocking slide left and right displacement travel limiting rib (3311) that protrudes from the cavity wall surface of the unlocking slide cavity (331). The left side of the locking ring (31) corresponds to the right side of the unlocking slide left and right displacement travel limiting rib (3311). The unlocking slide limiting member (34) is located at the locking ring (31). The left side of the unlocking slide (34) is embedded in the female plug mechanism (2). The distance between the unlocking slide limiting member (34) and the opposite side of the locking ring (31) constitutes the unlocking slide left and right displacement stroke limiting rib moving space (36). The unlocking slide left and right displacement stroke limiting rib (3311) is located in the unlocking slide left and right displacement stroke limiting rib moving space (36). The number of a set of locking and unlocking rollers (35) is three that are evenly distributed in a spaced manner around the left end of the female plug mechanism (2) and are blocked by the locking ring (31). When this set of rollers... When the locking and unlocking roller (35) loses the obstruction of the locking ring (31) and enters the interior of the female plug mechanism (2), the male plug mechanism (1) is in a locked state of being plugged into the female plug mechanism (2). When the locking and unlocking roller (35) exits the interior of the female plug mechanism (2) and moves to the outside of the female plug mechanism (2) between the cavity wall of the unlocking slide cavity (331) of the unlocking slide (33) and is obstructed by the locking ring (31), the male plug mechanism (1) is in a unlocked state of being unplugged from the female plug mechanism (2).

2. The self-locking fluid connector structure with uniform distribution of locking and unlocking forces according to claim 1, characterized in that: On the right side of the locking ring (31) and at a position corresponding to the set of locking and unlocking rollers (35), there are locking and unlocking roller abutment grooves (311) in an interval, the number of which is equal to the number of the set of locking and unlocking rollers (35).

3. The self-locking fluid connector structure with uniform distribution of locking and unlocking forces according to claim 1, characterized in that: The male plug mechanism (1) includes a male plug housing (11), a male plug valve core return spring (12), a male plug valve core return spring support retaining ring (13), a male plug valve core return spring support retaining ring limiting snap ring (14), and a male plug valve core (15). The male plug housing (11) has a male plug housing cavity (111) that extends from the left end to the right end for fluid passage. A male plug housing mounting and fixing thread (112) is formed on the outer wall of the left end of the male plug housing (11). An external hexagonal nut (113) for wrench assembly operation of the male plug is formed on the outer wall of the middle part of the male plug housing (11). The external hexagonal nut (113) is located on the male plug housing (11) and to the right of the external hexagonal nut (113). A sealing ring groove forming flange (114) is formed around the circumference of the external hexagonal nut (113). The space between the sealing ring groove forming flange (114) and the opposite side of the external hexagonal nut (113) forms a sealing ring groove (115), and a male and female plug mating sealing ring (1151) is embedded in the sealing ring groove (115). On the outer wall of the male plug housing (11) and located to the right of the sealing ring groove forming flange (114), a male plug housing locking flange (116) is formed. The space between the male plug housing locking flange (116) and the opposite side of the sealing ring groove forming flange (114) forms a male plug roller locking cavity (117), and the male plug housing locking... A male plug housing locking flange guide surface (1161) is formed on the flange (116). The male plug housing locking flange guide surface (1161) gradually rises from right to left. The male plug valve core return spring (12) is disposed in the male plug housing cavity (111), and the left end of the male plug valve core return spring (12) is supported on the right side of the male plug valve core return spring support retaining ring (13). The right end of the male plug valve core return spring (12) is supported on the male plug valve core return spring support step (151) formed on the left end of the male plug valve core (15). The male plug valve core return spring support retaining ring (13) is located in the male plug housing cavity (111), and the male plug valve core return spring support retaining ring (13) is located in the male plug housing cavity (111). 3) The right side of the male plug valve core return spring support retaining ring (13) is abutted against the retaining ring support step surface (1111) on the cavity wall of the male plug housing cavity (111), and the left side of the male plug valve core return spring support retaining ring (13) is abutted against the right side of the male plug valve core return spring support retaining ring limiting snap ring (14). The male plug valve core return spring support retaining ring limiting snap ring (14) is embedded in the male plug return spring support retaining ring limiting snap ring groove (1112) on the cavity wall of the male plug housing cavity (111). The male plug valve core (15) is located at the right end of the male plug housing cavity (111). The male plug valve core (15) is narrowed at the right end and a male plug valve core sealing ring groove (152) is formed around the circumference of the male plug valve core (15).A male plug valve core sealing ring (1521) is provided in the male plug valve core sealing ring groove (152) to form a seal with the cavity wall of the male plug housing cavity (111). When the set of locking and unlocking rollers (35) are inserted into the female plug mechanism (2) and located in the male plug roller locking cavity (117), the male plug housing (11) is in a locked state of plug-in connection with the female plug mechanism (2). When the set of locking and unlocking rollers (35) exits the male plug roller locking cavity (117) and moves to the outside of the female plug mechanism (2) and is located between the outside of the female plug mechanism (2) and the cavity wall of the unlocking slide cavity (331) of the unlocking slide sleeve (33) and is blocked by the locking ring (31), the male plug housing (11) is in a unlocked state of being disconnected from the female plug mechanism (2).

4. The self-locking fluid connector structure with uniform distribution of locking and unlocking forces according to claim 3, characterized in that: The female plug mechanism (2) includes a female plug housing (21), a slip ring return spring (22), a slip ring (23), and a female plug valve core (24). The female plug housing (21) has a female plug housing cavity (211) extending from the left end to the right end. An unlocking slip sleeve limiting member insertion groove (212) is formed on the outer wall of the left end of the female plug housing (21) at a position corresponding to the unlocking slip sleeve limiting member (34). The unlocking slip sleeve limiting member (34) is embedded in the unlocking slip sleeve limiting member insertion groove (212). A return spring abutment step (213) is formed on the outer wall of the female plug housing (21) at a position corresponding to the right end of the return spring (32). The return spring (32) is sleeved on the female plug housing (21). The left end of the return spring (32) is located between the outer wall of the female plug housing (21) and the wall of the unlocking sleeve cavity (331). The right end of the return spring (32) abuts against the return spring abutment step (213). On the outer wall of the female plug housing (21) and at the position corresponding to the left side of the set of locking and unlocking rollers (35), there are female plug housing roller rolling slopes (214) for the set of locking and unlocking rollers (35) to roll, with a number equal to the number of the set of locking and unlocking rollers (35). A locking and unlocking roller groove (215) is provided at the left side of the female plug housing roller rolling slope (214). A locking and unlocking roller groove (215) is provided at the middle of the length direction of the locking and unlocking roller groove (215). A roller protrusion hole (2151) communicating with the cavity (211) of the female plug housing has a fluid pipe connector mating step (216) formed on the outer wall of the right end of the female plug housing (21) and around the circumference of the female plug housing (21). The left end face of the fluid pipe connector (4) contacts the right side face (2161) of the fluid pipe connector mating step (216). A fluid pipe connector sealing ring groove (217) and an outer snap ring groove (218) are sequentially opened on the outer wall of the female plug housing (21) and located on the right side of the fluid pipe connector mating step (216). A fluid pipe connector seal that seals with the inner wall of the left end of the fluid pipe connector (4) is provided in the fluid pipe connector sealing ring groove (217). The ring (2171) has an outer retaining ring (2181) in the outer retaining ring groove (218) for locking with the inner wall of the left end of the fluid pipeline connector (4). The female plug valve core (24) is located in the female plug housing cavity (211) and positioned at the right end of the female plug housing cavity (211). The slip ring return spring (22) is located in the female plug housing cavity (211) and sleeved on the female plug valve core (24). The left end of the slip ring return spring (22) is supported on the right end of the slip ring (23), and the right end of the slip ring return spring (22) is supported on the right end of the female plug valve core (24). The slip ring (23) is disposed in the female plug housing cavity (211) with left and right displacement. The male plug housing (11) is plugged into and pulled out of the female plug housing cavity (211).

5. The self-locking fluid connector structure with uniform distribution of locking and unlocking forces according to claim 4, characterized in that: A female plug housing cavity wall sealing ring groove (2111) is formed on the cavity wall of the female plug housing cavity (211) of the female plug housing (21) and around the circumference of the cavity wall. A female plug housing cavity wall sealing ring (21111) is embedded in the female plug housing cavity wall sealing ring groove (2111). When the male plug housing (11) of the male plug mechanism (1) is in the locked state of being plugged into the female plug housing (21) of the female plug mechanism (2), the male plug housing ( The outer wall of the male plug housing (11) forms a sealing fit with the sealing ring (21111) of the cavity wall of the female plug housing. When the male plug housing (11) is in an unlocked state where it is disconnected from the female plug housing (21) by the right displacement of the unlocking sleeve (33), the restoring force of the return spring (22) forces the slip ring (23) to move to the left and reset. The outer wall of the slip ring (23) forms a sealing fit with the sealing ring (21111) of the cavity wall of the female plug housing.

6. The self-locking fluid connector structure with uniform distribution of locking and unlocking forces according to claim 4, characterized in that: A female plug valve core sealing ring groove (241) is provided in the circumferential direction at the left end of the female plug valve core (24). A female plug valve core sealing ring (2411) is nested in the female plug valve core sealing ring groove (241). When the male plug housing (11) of the male plug mechanism (1) is in an unlocked state where it is disconnected from the female plug housing (21), the restoring force of the return spring (22) forces the slip ring (23) to move to the left and reset. The inner wall of the slip ring (23) forms a sealing fit with the sealing ring (21111) of the cavity wall of the female plug housing.

7. The self-locking fluid connector structure with uniform distribution of locking and unlocking forces according to claim 4, characterized in that: A return spring support step (242) is formed at the right end of the female plug valve core (24) and at the position corresponding to the right end of the slip ring return spring (22). The right end of the slip ring return spring (22) is supported on the left side (2421) of the support step of the return spring support step (242). A step left side mating cavity (219) is formed at the right end of the female plug housing cavity (21) and at the position corresponding to the periphery of the return spring support step (242). The periphery of the support step left side (2421) mates with the step left side mating cavity (219).

8. The self-locking fluid connector structure with uniform distribution of locking and unlocking forces according to claim 4, characterized in that: A retaining ring groove (2112) is provided at the right end port of the female plug housing cavity (211) of the female plug housing (21) and around the circumference. A female plug valve core limiting retaining ring (21121) is embedded in the retaining ring groove (2112). The right end face of the female plug valve core (24) is in contact with the left side face of the female plug valve core limiting retaining ring (21121).

9. The self-locking fluid connector structure with uniform distribution of locking and unlocking forces according to claim 4, characterized in that: The fluid pipe connector (4) has a sealing fit with the fluid pipe connector sealing ring (2171) on the inner wall of its left end. An external snap ring insertion groove (41) and a pipe connector sealing ring groove (42) are sequentially formed on the inner wall of the fluid pipe connector (4) at a position to the right of the fluid pipe connector sealing ring (2171). A fitting for contacting the female connector housing (21) is provided within the pipe connector sealing ring groove (42). A sealing ring (421) for the pipe joint is formed on the outer wall of the right end. The outer retaining ring (2181) is inserted into the outer retaining ring insertion groove (41). A frustum wing (43) is formed on the outer wall of the right end of the fluid pipe joint (4). The right end of the fluid pipe joint (4) is formed in a straight line or a U-shape. When the right end of the fluid pipe joint (4) is formed in a U-shape, the frustum wing (43) is formed on the outer wall of the vertical part of the U-shape.

10. The self-locking fluid connector structure with uniform distribution of locking and unlocking forces according to claim 6, characterized in that: On the left end of the cavity wall of the female plug housing cavity (211) of the female plug housing (21) and around the perimeter, there is a male plug housing guide slope (2113). The male plug housing locking flange guide surface (1161) and the male plug housing guide slope (2113) form a mutually cooperating guide relationship.

Images