A quick plug connector

Abstract

The utility model belongs to the field of photoacoustic endoscopic imaging relates to a quick plug -in joint, including male head structure and with female head structure matched connection of male head structure, male head structure includes a plug -in, female head structure includes the joint part matched connection with plug -in, plug -in and joint part matched connection form fixed joint, wherein, the recess is provided on plug -in, the male head structure and the female head structure of the female head structure outside setting and the recess matched corresponding convex, the recess and the convex form buckle structure to realize the plug -in fixed of male head structure with female head structure. Male head structure and female head structure form buckle design through respectively setting recess of plug -in and corresponding convex of joint part, can realize the fixed and seamless plug -in butt joint of male head structure and female head structure, improve the connection compactness of plug -in joint when high -speed rotation.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a quick-plug connector. Background Technology

[0002] Photoacoustic imaging is a hybrid imaging modality that integrates optical excitation and ultrasonic detection. It utilizes the photoacoustic effect generated when pulsed lasers irradiate biological tissue to acquire structural and functional information. Photoacoustic endoscopic imaging systems further extend this technology to body cavities, using endoscopic probes to penetrate deep into cavities such as the respiratory and digestive tracts to excite and collect data, enabling early diagnosis and treatment guidance for lesions. Photoacoustic endoscopic systems typically include core modules such as pulsed lasers, fiber optic transmission devices, rotating scanning mechanisms, ultrasonic transducers, and signal processing units. The system structure is relatively complex, involving the coordinated transmission of multiple types of signals, including optical, electrical, and mechanical transmissions. Therefore, photoacoustic endoscopic systems urgently require a connector that can efficiently couple the optical and electrical signal paths, while also offering quick and easy plugging and unplugging, stable connection, and good vibration resistance.

[0003] In the prior art, patent document (CN 108718014B) discloses a quick-plug optocoupler for a photoacoustic ultrasound intravascular imaging system. It uses a pre-embedded quick-connect fiber optic cold connector and a pin-and-socket connector as the coupling connectors for the optical and electrical paths, respectively. The pre-embedded quick-connect fiber optic cold connector and the pin-and-socket connector are integrated into the pluggable connector housing, achieving a three-in-one synchronous pluggable function. However, the pluggable connector in the above solution only uses a spring-loaded snap-fit ​​design to fix the connector structure. During long-term use, the connection points using the spring-loaded snap-fit ​​design are prone to loosening after repeated use, affecting the transmission stability of the optical and electrical paths, and even causing a decrease in imaging quality or system malfunction. Therefore, there is an urgent need for a quick-pluggable connector that can achieve synchronous and rapid docking of the optical path, electrical path, and mechanical transmission while solving the technical problem of unstable coupling connector connections in the prior art. Utility Model Content

[0004] Based on this, in order to address the problem of unstable connection of plug-in connectors in existing photoacoustic endoscopy systems, this utility model provides a quick-plug connector, which optimizes the connection method of existing optocoupler connectors and solves the problems of unstable connection and poor vibration resistance between the tracheal intervention catheter and the rotary scanning retraction device in photoacoustic endoscopy systems.

[0005] This utility model is achieved using the following technical solution: A quick-connect connector includes a male connector structure and a female connector structure that mates with the male connector structure. The male connector structure includes a plug portion, and the female connector structure includes a connector portion that mates with the plug portion, forming a fixed connector. The plug portion has a groove, and the outer side of the connector portion has a protrusion that matches the groove. The groove and the protrusion form a snap-fit ​​structure to achieve plugging and unplugging fixation of the male connector structure and the female connector structure. The male connector structure also includes a male connector housing located outside the plug portion and a metal shielding housing fixed to the outside of the male connector housing. The female connector structure also includes a double-layer metal shielding housing located outside the connector portion. Both the male connector housing and the metal shielding housing have positioning protrusions. The inner metal shielding housing of the double-layer metal shielding housing has a first groove on its side, and the outer metal shielding housing has a second groove on its side. The positioning protrusions on the male connector housing and the metal shielding housing respectively mate with the first groove and the second groove.

[0006] In this embodiment, the male and female connectors are designed with a snap-fit ​​mechanism formed by the grooves on the plug and the corresponding protrusions on the connector, which enables the male and female connectors to be fixed and seamlessly plugged in and out, improving the tightness of the connection when the pluggable connector is rotated at high speed. At the same time, when the pluggable connector is plugged in, the male connector shell, the metal shield shell, and the female double-layer metal shield shell are matched and connected to form an integral screw-lock connector shell, which is used to protect and lock the multiple connectors formed inside and shield the signal interference of noise to the circuit coupling.

[0007] Furthermore, the male connector structure further includes a double-layer metal insert fixed to the inside of the plug portion and an optical fiber male connector fixed to the inside of the double-layer metal insert; the female connector structure further includes a double-layer metal ring fixed to the inside of the connector portion and an optical fiber female connector fixed to the inside of the double-layer metal ring; wherein, the double-layer metal insert and the double-layer metal ring are matched and connected to form a circuit coupling connector; the optical fiber male connector and the optical fiber female connector are matched and connected to form an optical path coupling connector.

[0008] Furthermore, the double-layer metal insert is a double-layer bifurcated annular spring, with the male fiber connector located inside the inner bifurcated annular spring and the female fiber connector located inside the inner metal ring.

[0009] Furthermore, an insulating ferrule is provided on the inner side of the inner bifurcated annular spring, and the male optical fiber connector is pre-embedded on the inner side of the insulating ferrule.

[0010] Furthermore, the first groove is an I-shaped groove, and the second groove is an L-shaped groove; the positioning protrusions on the male connector shell and the metal shield shell are respectively matched and connected with the I-shaped groove and the L-shaped groove. By matching and engaging the positioning protrusions with the I-shaped groove and the L-shaped groove, the connector can be guided to be inserted and removed while locking the internally formed connector, thereby further realizing the quick insertion and removal and connection fixation of the connector.

[0011] Furthermore, the female connector structure also includes a female connector housing and a bearing. The outer surface of the female connector housing is attached to the inner surface of the inner metal shielding housing. The outer surface of the bearing is attached to the inner surface of the female connector housing, and the outer surface of the bearing is fixed relative to the inner surface of the female connector housing.

[0012] Furthermore, the outer diameter of the bearing is equal to the inner diameter of the female connector housing. This design allows the bearing to be fitted inside the female connector housing, and the friction between the two drives the entire connector to rotate rapidly.

[0013] Furthermore, the inner diameter of the female connector housing is at least 2 mm larger than the outer diameter of the fixed connector formed inside it. By setting the inner diameter of the female connector housing to be at least 2 mm larger than the outer diameter of the fixed connector formed inside it, a gap is formed between the two, allowing the plug-in connector to rotate without resistance inside the female connector housing via bearings.

[0014] Furthermore, the male connector shell, fiber optic male connector, double-layer metal plug, and plug portion of the male connector structure are inserted into the female connector structure to the same depth.

[0015] The quick-connect connector provided by this utility model has a plug part and a connector part respectively in the male and female structures. The plug part of the male structure matches the connector part of the female structure to form a fixed connector. The plug part and the connector part form a snap-fit ​​structure by setting matching grooves and protrusions respectively. The formed snap-fit ​​structure further fixes the circuit coupling connector and optical coupling connector formed inside the male and female structures, which ensures the tightness of the connector connection when rotating at high speed compared with the prior art. Attached Figure Description

[0016] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the various components are shown in the drawings only as examples and not necessarily to actual scale.

[0019] Figure 1 This is a front cross-sectional view of a quick-plug connector male head structure according to this utility model; Figure 2 This is a front cross-sectional view of a quick-plug connector female head structure according to this utility model; Figure 3 This is a three-dimensional structural diagram of a quick-plug connector male head structure according to this utility model; Figure 4 This is a three-dimensional structural diagram of a quick-plug connector female head structure according to the present invention.

[0020] Explanation of the reference numerals: 1. Male connector housing; 2. Coaxial signal cable; 3. Fiber optic male connector; 4. Fiber optic female connector; 5. Double-layer metal insert; 6. Double-layer metal ring; 7. Plug part; 8. Connector part; 9. Metal shielding housing; 10. Bearing; 11. Double-layer metal shielding housing; 12. Female connector housing; 13. Groove; 14. Protrusion; 15. First groove; 16. Second groove; 17. Screw hole; 18. Positioning protrusion. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the invention. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] Example Please see Figure 1-4This utility model provides a quick-connect connector, including a male connector structure and a female connector structure that matches and connects to the male connector structure. The male connector structure includes a plug portion 7, and the female connector structure includes a connector portion 8 that matches and connects to the plug portion 7. The plug portion 7 and the connector portion 8 are matched and connected to form a fixed connector. The plug portion 7 has a groove 13, and the outer side of the connector portion 8 has a protrusion 14 that matches the groove 13. The groove 13 and the protrusion 14 form a snap-fit ​​structure to achieve plugging and unplugging fixation of the male connector structure and the female connector structure. Through the plugging and unplugging of the groove 13 and the protrusion 14, the male connector structure and the female connector structure can be fitted and fixed. Preferably, the plug portion 7 has three grooves 13 spaced apart, and the outer side of the connector portion 8 has three protrusions 14 spaced apart. When the male connector structure is connected to the female connector structure, the three grooves 13 on the plug portion 7 and the three protrusions 14 on the connector portion 8 engage to form a triangular snap-fit ​​structure. The triangular structure offers superior mechanical stability, thus enhancing the connection stability between the male and female connectors through the triangular snap-fit ​​structure. In other embodiments, the structure and number of grooves and protrusions are not limited, as long as they correspond to the snap-fit ​​mechanism.

[0023] The quick-connect connector provided by this utility model has a snap-fit ​​design formed by the groove of the plug part 7 and the corresponding protrusion of the connector part 8, which can realize the fixation and seamless plug-in docking of the male and female structures, and improve the connection tightness and stability of the plug-in connector during high-speed rotation.

[0024] Furthermore, the male connector structure also includes a double-layer metal plug 5 fixed inside the plug portion 7 and an optical fiber male connector 3 fixed inside the double-layer metal plug 5; the female connector structure also includes a double-layer metal ring 6 fixed inside the connector portion 8 and an optical fiber female connector 4 fixed inside the double-layer metal ring 6; wherein, the double-layer metal plug 5 and the double-layer metal ring 6 are matched and connected to form a circuit coupling connector; the optical fiber male connector 3 and the optical fiber female connector 4 are matched and connected to form an optical path coupling connector.

[0025] Understandably, the optical path coupling connector formed by the mating connection of the male fiber connector 3 and the female fiber connector 4 is located in the inner core layer of the pluggable connector and is used for optical signal transmission; the circuit coupling connector formed by the mating connection of the double-layer metal plug 5 and the double-layer metal ring 6 is located in the outer layer of the optical path coupling connector and is used for electrical signal transmission; the fixing connector formed by the mating connection of the plug part 7 and the connector part 8 is located in the outer layer of the circuit coupling connector and is used to fix the internally formed optical path coupling connector and circuit coupling connector. Preferably, both the male fiber connector 3 and the female fiber connector 4 are SC fiber ceramic connectors. Compared with the fiber cold splice used in the prior art, it has higher coupling stability, is not easily worn after long-term use, and the ceramic material is corrosion-resistant and oxidation-resistant, and is not prone to aging and deformation; moreover, through the three-layer coaxial design of "core optical path + middle layer circuit + outer layer fixed shield", the signal transmission does not interfere with each other, and can achieve more stable and faster signal transmission.

[0026] Optionally, the double-layer metal insert 5 is a double-layer bifurcated annular spring, with the male fiber connector 3 located inside the inner bifurcated annular spring and the female fiber connector 4 located inside the inner metal ring. The double-layer bifurcated annular spring is preferably a beryllium copper annular elastic contact claw. When the male connector is inserted into the female connector, the double-layer bifurcated annular spring is compressed and opened, relying on its own elasticity to tightly adhere to the double-layer metal ring 6, forming a metal conductor to achieve 360° electrical signal transmission. Simultaneously, the elastic pressure ensures continuous tight contact between the double-layer metal insert 5 and the double-layer metal ring 6, forming a continuous and seamless shielding layer to achieve 360° external shielding of the internal optical signal.

[0027] Furthermore, the circuit coupling connector formed by the matching connection of the double-layer metal plug 5 and the double-layer metal ring 6 has a dual-layer channel with positive and negative poles for pre-embedding the coaxial signal line 2, with the inner layer being the positive pole and the outer layer being the negative pole. Preferably, in this embodiment, the coaxial signal line 2 is a 1mm diameter coaxial cable, and its positive and negative signal lines are respectively soldered to the double-layer metal plug 5 and the double-layer metal ring 6. Compared with the gold-plated pin structure used in the prior art, the circuit coupling connector formed by the double-layer metal plug 5 and the double-layer metal ring 6 in this invention has a much larger contact area than a pin-type plug, resulting in better conductivity; moreover, the dual-layer structure can transmit positive and negative signals simultaneously, resulting in higher signal transmission efficiency.

[0028] Furthermore, the inner layer of the bifurcated annular spring is provided with an insulating ferrule, and the male optical fiber connector 3 is embedded inside the insulating ferrule; the female optical fiber connector 4 is embedded inside the inner metal ring of the double-layer metal ring 6. When the male connector structure and the female connector structure are plugged in, the male optical fiber connector 3 and the female optical fiber connector 4 are coaxially matched and connected. Preferably, the insulating ferrule is a ceramic insulator. The ceramic insulator serves two purposes: first, it provides precise coaxial positioning, constraining the fiber core of the male optical fiber connector 3 to the central axis of the coaxial structure, ensuring that the male optical fiber connector 3 and the female optical fiber connector 4 are coaxial and concentric during plugging; second, it provides electrical insulation, isolating the inner layer optical path coupling connector and the second layer circuit coupling connector, ensuring that the optical signal and the electrical signal do not interfere with each other during transmission. Moreover, during use, the double-layer metal plug 5 and the double-layer metal ring 6 fit tightly together, and their force will apply axial pre-tightening force to the inner insulating core, so that the fiber cross-sections of the male fiber connector 3 and the female fiber connector 4 are always tightly fitted, thereby ensuring stable coupling and transmission of optical signals.

[0029] Furthermore, the male connector structure also includes a male connector housing 1 located outside the plug portion and a metal shielding housing 9 fixed to the outside of the male connector housing 1. The female connector structure also includes a double-layer metal shielding housing 11 located outside the connector portion 8. The male connector housing 1, the metal shielding housing 9 of the male connector structure and the double-layer metal shielding housing 11 of the female connector structure cooperate to form the connector housing of the quick-plug connector, which is used to integrate the optical path coupling connector formed by the optical fiber male connector 3 and the optical fiber female connector 4, the circuit coupling connector formed by the double-layer metal plug 5 and the double-layer metal ring 6, and the fixed connector formed by the plug portion 7 and the connector portion 8 to achieve synchronous plugging and unplugging in a three-in-one manner.

[0030] The male connector housing 1 and the metal shielding housing 9 are both provided with positioning protrusions 18. The inner metal shielding housing 11 has a first groove 15 on its side, and the outer metal shielding housing has a second groove 16 on its side. The positioning protrusions 18 on the male connector housing 1 and the metal shielding housing 9 are respectively matched and connected with the first groove 15 and the second groove 16. When the plug-in connector is plugged in, the male connector housing 1, the metal shielding housing 9, and the female double-layer metal shielding housing 11 are matched and connected to form an integral plug-in connector housing, which is used to protect and lock the multiple connectors formed inside, so as to shield the signal interference of external noise to the circuit coupling.

[0031] Furthermore, the double-layer metal shielding shell 11 adopts an integrated design of upper and lower layers. The first groove 15 is preferably an I-shaped groove, and the second groove 16 is preferably an L-shaped groove. The positioning protrusions 18 on the male connector shell 1 and the metal shielding shell 9 are respectively matched and connected with the I-shaped groove and the L-shaped groove. During insertion, the positioning protrusions 18 on the metal shielding shell 9 and the L-shaped groove on the side of the outer metal shielding shell can match and align to form a snap-lock shell. The snap-locking operation of the positioning protrusions 18 and the L-shaped groove can guide the insertion and removal of the connector while locking the multiple connectors formed inside, further realizing the quick insertion and removal and connection fixation of the connector.

[0032] Furthermore, the female connector structure also includes a female connector housing 12 and a bearing 10. The outer surface of the female connector housing 12 is fitted to the inner surface of the inner metal shielding housing; the outer surface of the bearing 10 is fitted to the inner surface of the female connector housing 12, and the outer surface of the bearing 10 is fixed relative to the inner surface of the female connector housing 12. The outer diameter of the bearing 10 is equal to the inner diameter of the female connector housing 12. This design allows the bearing 10 to be fitted inside the female connector housing 12, achieving a tight fit between the bearing 10 and the female connector housing 12, and utilizing the friction between them to drive the entire connector to rotate rapidly. The female connector structure is used in conjunction with an external rotary scanning retraction device through the bearing 10. The bearing 10 is used to couple the rotation axis of the female connector structure and the rotary scanning retraction device, achieving coaxial high-speed rotation of the female connector structure and the rotary scanning retraction device, reducing eccentricity and mechanical friction caused by high-speed rotation.

[0033] Furthermore, screw holes 17 are provided on both the left and right sides of the connector portion 8 of the female head structure. The connector portion 8 is attached to the external high-speed rotation retraction device and fixed by screws through the screw holes 17 to ensure the stability of the quick-plug connector during high-speed scanning retraction. By tightening the screws at both ends, the connector portion 8 can be tightly fitted to the high-speed scanning retraction device.

[0034] Furthermore, the inner diameter of the female connector housing 12 is at least 2 mm larger than the outer diameter of the fixed connector formed inside it. Preferably, the female connector housing 12 maintains an outer diameter distance of 3 mm from the fixed connector inside it, so that a clearance fit is formed between the female connector housing 12 and the fixed connector inside it, which facilitates the insertion and separation of the male and female connector structures; at the same time, it allows the pluggable connector to rotate freely at high speed inside the female connector housing 12 through the bearing 10, meeting the requirements of high-speed scanning imaging.

[0035] Furthermore, the male connector shell, fiber optic connector, double-layer metal insert, and plug portion of the male connector structure are inserted into the female connector structure to the same depth. In this embodiment, the depth can be selected to be between 1.8mm and 2mm, which can further ensure the reliability and consistency of the connection.

[0036] The beneficial effects of this utility model are: 1. The quick-connect connector proposed in this utility model integrates an optical fiber head, metal conduction, and mechanical transmission coupling components into one unit, enabling rapid plugging and unplugging of the optical path, circuitry, and mechanical transmission between the photoacoustic endoscope probe and the main unit. Disassembly and assembly can be completed without any tools, significantly improving the efficiency of clinical probe replacement. The male plug and female connector utilize a snap-fit ​​design formed by grooves and protrusions, combined with a rotary snap-fit ​​outer shell design formed by an L-shaped groove and positioning protrusions. During insertion, pushing it into place automatically locks it in place; unlocking is achieved by rotating it in the opposite direction. This convenient operation and reliable connection effectively avoids the loosening problems caused by vibration or repeated use in traditional snap-fit ​​connectors. Furthermore, tool-free disassembly and assembly make operation simple and quick. It ensures precise alignment of various signal coupling components and prevents damage to the optical fiber end face, improving the system's imaging stability and lifespan. Simultaneously, the self-designed double-layer metal plug and double-layer metal ring facilitate simple and quick insertion and removal, optimizing signal transmission and improving signal transmission stability.

[0037] 2. Considering that noise generated by motor operation can affect the coupling and transmission of electrical signals, the plug-in connector provided by this utility model has a double-layer metal shielding shell on the female head structure instead of the traditional single-layer shielding structure that wraps around the entire plug-in connector. This enhances the shielding against spatial noise, effectively attenuates external electromagnetic interference, and improves image quality. At the same time, the double-layer metal shielding shell can effectively prevent contaminants such as liquids and dust from entering the connector, enhancing the safety and reliability of the connector in complex clinical environments.

[0038] 3. To be compatible with the high-speed scanning and retraction device and achieve synchronous coaxial high-speed rotation and retraction scanning, the protrusion on the male connector and the groove on the female connector not only improve the connection stability but also provide lateral stress during high-speed rotation and axial stress during retraction, ensuring a stable connection between the fiber optic male and female connectors, and between the double-layer metal plug and the double-layer metal ring. Furthermore, the bearing firmly clamped between the female connector shell and the self-designed connector has its outer ring relatively fixed to the female connector shell and its inner ring relatively fixed to the connector. When the motor rotates in the high-speed scanning and retraction device, it drives the rotation of the formed fixed connector. A distance of at least 3mm is maintained between the female connector shell and the self-designed fixed connector. The presence of the bearing ensures the coaxiality of the connector during rotation, allowing the entire connector to rotate and retract at high speed without resistance.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A quick-plug connector, comprising a male connector structure and a female connector structure that mates and connects with the male connector structure; characterized in that, The male connector structure includes a plug portion, and the female connector structure includes a connector portion that matches and connects to the plug portion. The plug portion and the connector portion match and connect to form a fixed connector. The plug portion is provided with a groove, and the outer side of the connector portion is provided with a protrusion that matches and corresponds to the groove. The groove and the protrusion form a snap-fit ​​structure to realize the insertion and removal of the male connector structure and the female connector structure. The male connector structure further includes a male connector housing located outside the plug portion and a metal shielding housing fixed to the outside of the male connector housing. The female connector structure further includes a double-layer metal shielding housing located outside the connector portion. Positioning protrusions are provided on both the male connector housing and the metal shielding housing. A first groove is provided on the side of the inner metal shielding housing of the double-layer metal shielding housing, and a second groove is provided on the side of the outer metal shielding housing. The positioning protrusions on the male connector housing and the metal shielding housing are respectively matched and connected to the first groove and the second groove.

2. The quick-connect connector according to claim 1, characterized in that, The male connector structure further includes a double-layer metal insert fixed to the inside of the plug portion and an optical fiber male connector fixed to the inside of the double-layer metal insert. The female connector structure further includes a double-layer metal ring fixed to the inside of the connector portion and an optical fiber female connector fixed to the inside of the double-layer metal ring. The double-layer metal insert and the double-layer metal ring are matched and connected to form a circuit coupling connector. The optical fiber male connector and the optical fiber female connector are matched and connected to form an optical path coupling connector.

3. The quick-connect connector according to claim 2, characterized in that, The double-layer metal insert is a double-layer bifurcated annular spring, with the male fiber connector located inside the inner bifurcated annular spring and the female fiber connector located inside the inner metal ring.

4. The quick-connect connector according to claim 3, characterized in that, The inner layer of the bifurcated annular spring is provided with an insulating ferrule, and the male optical fiber connector is pre-embedded inside the insulating ferrule.

5. The quick-connect connector according to claim 1, characterized in that, The first groove is an I-shaped groove, and the second groove is an L-shaped groove; the positioning protrusions on the male connector shell and the metal shield shell are respectively matched and connected to the I-shaped groove and the L-shaped groove.

6. The quick-connect connector according to claim 1, characterized in that, The female connector structure also includes a female connector housing and a bearing. The outer surface of the female connector housing is attached to the inner surface of the inner metal shield housing. The outer surface of the bearing is attached to the inner surface of the female connector housing and the outer surface of the bearing is fixed relative to the inner surface of the female connector housing.

7. The quick-connect connector according to claim 6, characterized in that, The outer diameter of the bearing is equal to the inner diameter of the female connector housing.

8. The quick-connect connector according to claim 7, characterized in that, The inner diameter of the female connector housing is at least 2 mm larger than the outer diameter of the fixed connector formed inside it.

9. The quick-connect connector according to any one of claims 1-8, characterized in that, The male connector shell, fiber optic connector, double-layer metal plug, and plug portion of the male connector structure are inserted into the female connector structure to the same depth.

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