A radio frequency connector with a self-locking structure for a 5g base station and a method of using the same

Abstract

The application discloses a radio frequency connector with a self-locking structure for a 5G base station and a use method thereof, which comprises a female head and a male head, the female head is connected with a connecting plate for mounting the female head inside the 5G base station on one side, a plurality of clamping blocks in a ring shape are connected outside the female head, and a buckling mechanism corresponding to the clamping blocks is arranged outside the male head. The elastic buckle is inserted along the top of the clamping block, the quick connection of the male head and the female head of the radio frequency connector can be realized, the male head and the female head can be quickly separated by pulling the rotating handle, further, the elastic buckle is matched with the clamping block, the anti-fumble function is achieved, repeated plugging is avoided, when the elastic buckle is buckled, the movable ring drives the bolt to be inserted into the insertion hole, self-locking is realized, meanwhile, the movable ring is blocked by the baffle, the elastic buckle cannot return, and it is ensured that the male head and the female head are not easy to be loosened and fallen off in subsequent use.

Description

Technical Field

[0001] This invention relates to the field of radio frequency connectors, and more specifically to a radio frequency connector with a self-locking structure for 5G base stations and its usage method. Background Technology

[0002] Radio frequency (RF) connectors are used to transmit radio frequency signals. They have a wide transmission frequency range, up to 18 GHz or higher, and are usually used with coaxial cables. The basic structure includes: a center conductor (male or female center contact), dielectric material outside the inner conductor, and an outer contact. With the rapid development of communication technology, in order to adapt to the multi-functionality and lightweight miniaturization of various devices, they are widely used in radar, communication, data transmission, aerospace equipment, 5G base stations and other complete equipment.

[0003] Currently, most existing RF connectors use threaded connections or self-locking mating connections. However, threaded connections cannot achieve quick assembly and disassembly, while self-locking mating connections lack foolproof features, requiring repeated adjustments during mating, which affects installation efficiency, and are difficult to self-lock, making them prone to loosening and falling off during use.

[0004] Therefore, it is necessary to invent a radio frequency connector with a self-locking structure for 5G base stations and its usage method to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a RF connector with a self-locking structure for 5G base stations and its usage method. By inserting the elastic buckle along the top of the locking block, the male and female connectors of the RF connector can be quickly connected. Pulling the lever allows for quick disengagement of the male and female connectors. Furthermore, the elastic buckle, in conjunction with the locking block, provides a foolproof function, preventing repeated insertions. When the elastic buckle is engaged, the movable ring drives the pin to insert into the socket, achieving self-locking. Simultaneously, the movable ring is blocked by a baffle, preventing the elastic buckle from returning, ensuring that the male and female connectors are not easily loosened or detached during subsequent use, thus overcoming the aforementioned shortcomings in the technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a radio frequency connector with a self-locking structure for 5G base stations, including a female connector and a male connector, wherein a connecting plate for installing the female connector inside the 5G base station is connected to one side of the female connector, and a plurality of ring-shaped locking blocks are connected to the outside of the female connector, wherein a fastening mechanism corresponding to the locking blocks is provided on the outside of the male connector, and a foolproof mechanism and a self-locking mechanism are provided on the outside of the female connector.

[0007] The fastening mechanism includes multiple elastic buckles arranged in a ring and connected to the outside of the male connector. The elastic buckles match the locking block, and the male and female connectors are quickly connected by inserting the elastic buckles into the top of the locking block.

[0008] The foolproof mechanism includes multiple sets of baffles corresponding to the locking blocks and a ring plate connected between the multiple sets of baffles. The ring plate surrounds the outside of the female head to block the elastic buckle and prevent the male head from still being inserted into the female head when the elastic buckle is misaligned with the locking block.

[0009] The self-locking mechanism is used in conjunction with the fastening mechanism to lock the elastic buckle when it resets.

[0010] Preferably, a movable ring is fitted around the outside of the female head, the movable ring is rotatably connected to the female head, and the movable ring passes through the baffle and is slidably connected to the baffle.

[0011] Preferably, the number of self-locking mechanisms is set to multiple, each corresponding to a multiple elastic buckle.

[0012] Preferably, the self-locking mechanism includes an L-shaped pin connected to the outside of the movable ring, a socket on the elastic buckle that matches the pin, and a reset drive assembly. The reset drive assembly is used to fix the movable ring and, when the elastic buckle is engaged, drives the pin to insert into the socket to lock the elastic buckle.

[0013] Preferably, the reset drive assembly includes an L-shaped reset latch connected to the outside of the movable ring, and the reset latch and the pin are respectively disposed on both sides of the locking block.

[0014] Preferably, each set of baffles consists of two baffles, which are symmetrically distributed on both sides of the block. The two baffles correspond to the reset buckle and the pin, respectively. The surface of the baffle near the reset buckle has a slot that matches the reset buckle, and the surface of the baffle near the pin has a through hole that corresponds to the pin.

[0015] Preferably, a return spring is connected to the bottom of the pin, and the end of the return spring away from the pin is connected to an adjacent baffle.

[0016] Preferably, multiple throttles are installed on the outside of the movable ring, and the multiple throttles are distributed in a ring array about the central axis of the movable ring.

[0017] Preferably, the snap-fit ​​end of the elastic buckle is trapezoidal, and the snap-fit ​​end of the reset buckle is a right triangle.

[0018] A method of using a radio frequency connector with a self-locking structure for a 5G base station includes the following steps;

[0019] S1. Male and female connector connection: The staff uses screws to install the connecting plate inside the 5G base station, fixing the female connector to the 5G base station. Then, the male connector is aligned with the female connector and inserted, so that the elastic buckle contacts the block along the two baffles. Then, the insertion force is increased, and the inclined surface of the trapezoidal block contacts the trapezoidal snap-fit ​​end of the elastic buckle. Because the contact surface is inclined, after applying a certain pushing force, the snap-fit ​​end of the elastic buckle slides with the block, causing the elastic buckle to bend outward elastically. The snap-fit ​​end of the elastic buckle slides to the top of the block and continues to slide, finally disengaging from the top of the block. The elastic buckle, which was bent elastically, returns to its original position, so that the elastic buckle is snapped onto the outside of the block.

[0020] S2, foolproof trigger: When the male connector is inserted into the female connector, if the elastic buckle is not aligned with the locking block, the elastic buckle will be blocked by the baffle and the ring plate, thus preventing the male connector from being inserted and preventing the male connector from being connected to the female connector without being fastened and fixed.

[0021] S3, Automatic Locking: When the elastic buckle is reset, it will press down on the reset buckle that is fastened on the slot. The reset buckle will disengage from the slot. At this time, the stretched reset spring will pull the pin connected to it, so that the pin passes through the through hole and inserts into the socket on the elastic buckle, locking the elastic buckle, thereby realizing the self-locking of the male and female plugs and assembling them into the connector body.

[0022] S4. Male and female connector separation: The operator pulls the handle, causing the movable ring to rotate and the pin to disengage from the socket. This causes the pin to stretch the return spring to store energy for the next self-locking trigger. At the same time, the male connector is pulled to disengage from the female connector. At this time, the elastic buckle engagement end is elastically bent due to the trapezoidal locking block and then disengages from the locking block, allowing the male connector to smoothly separate from the female connector. Subsequently, the handle is pulled again, causing the return buckle to engage in the slot, fixing the movable ring, thereby quickly achieving the separation of the male and female connectors.

[0023] The technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0024] 1. Compared with the existing threaded connection method, the present invention uses an elastic buckle inserted along the top of the buckle block to achieve quick connection between the male and female RF connectors. By pulling the handle, the handle drives the movable ring to rotate, causing the pin to disengage from the socket. Then, the male connector can be pulled directly to quickly separate the male and female connectors, thereby achieving quick assembly and separation of the male and female connectors, making it more convenient to use.

[0025] 2. Compared with the existing plug-in self-locking connection method, the present invention uses an elastic buckle and a locking block to cooperate, which has a foolproof function, avoids repeated plugging and insertion, and has a higher installation efficiency. When the elastic buckle is engaged, the reset drive component drives the movable ring to rotate. The movable ring drives the pin to insert into the socket, fixing the elastic buckle with the socket and the movable ring, realizing the self-locking of the male and female plugs. At the same time, the movable ring is blocked by the baffle, so the elastic buckle cannot return, which improves the locking strength of the elastic buckle and ensures that the male and female plugs are not easy to loosen or fall off in subsequent use. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the overall structure of the male connector of the present invention;

[0029] Figure 3 This is a schematic diagram of the overall structure of the female head of the present invention;

[0030] Figure 4 This is a schematic diagram of the cooperative structure between the error-proof mechanism and the card block of the present invention;

[0031] Figure 5 This is a three-dimensional structural diagram of the self-locking mechanism of the present invention;

[0032] Figure 6 For the present invention Figure 1 Enlarged view of the structure of part A.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Female connector, 2. Male connector, 3. Connecting plate, 4. Locking block, 5. Fastening mechanism, 501. Elastic buckle, 6. Foolproof mechanism, 601. Baffle, 602. Ring plate, 7. Self-locking mechanism, 701. Pin, 702. Hole, 703. Reset drive assembly, 7031. Reset buckle, 7032. Slot, 704. Through hole, 705. Reset spring, 8. Movable ring, 9. Rotary handle. Detailed Implementation

[0035] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0036] This invention provides, for example Figure 1-6The RF connector with a self-locking structure for 5G base stations shown includes a female connector 1 and a male connector 2. A connecting plate 3 for installing the female connector 1 inside the 5G base station is connected to one side of the female connector 1. Multiple ring-shaped locking blocks 4 are connected to the outside of the female connector 1. A fastening mechanism 5 corresponding to the locking blocks 4 is provided on the outside of the male connector 2. A foolproof mechanism 6 and a self-locking mechanism 7 are provided on the outside of the female connector 1.

[0037] The fastening mechanism 5 includes a plurality of elastic buckles 501 arranged in a ring and connected to the outside of the male head 2. The elastic buckles 501 match the locking block 4. The male head 2 and the female head 1 are quickly connected by inserting the elastic buckles 501 into the top of the locking block 4.

[0038] By using the elastic buckle 501 in conjunction with the card block 4, the male connector 2 and the female connector 1 of the RF connector can be quickly connected. Compared with the existing threaded connection method, the connection speed is faster and the use is more convenient.

[0039] The foolproof mechanism 6 includes multiple sets of baffles 601 corresponding to the locking block 4 and a ring plate 602 connected between the multiple sets of baffles 601. The ring plate 602 surrounds the outside of the female head 1 and is used to block the elastic buckle 501 to prevent the male head 2 from still being inserted into the female head 1 when the elastic buckle 501 is misaligned with the locking block 4.

[0040] Furthermore, a movable ring 8 is sleeved on the outside of the female head 1. The movable ring 8 is rotatably connected to the female head 1 and passes through the baffle 601 and is slidably connected to the baffle 601.

[0041] When the elastic buckle 501 is not aligned with the locking block 4, the elastic buckle 501 will be blocked by the baffle 601 and the ring plate 602, thereby preventing the male head 2 from being inserted and preventing the male head 2 from being connected to the female head 1 without being fastened. The baffle 601 limits the elastic buckle 501 to prevent it from deflecting during insertion. In addition, the baffle 601 can also limit the movable ring 8 to prevent it from sliding along the axis of the female head 1 outside the female head 1.

[0042] The self-locking mechanism 7 is used in conjunction with the fastening mechanism 5 to lock the elastic buckle 501 when the elastic buckle 501 is reset.

[0043] The number of self-locking mechanisms 7 is set to multiple, each corresponding to a multiple elastic buckle 501.

[0044] The self-locking mechanism 7 includes an L-shaped pin 701 connected to the outside of the movable ring 8, a socket 702 on the elastic buckle 501 that matches the pin 701, and a reset drive assembly 703. The reset drive assembly 703 is used to fix the movable ring 8, and when the elastic buckle 501 is engaged, it drives the pin 701 to insert into the socket 702 to lock the elastic buckle 501.

[0045] When the elastic buckle 501 is engaged, the reset drive assembly 703 drives the movable ring 8 to rotate. The movable ring 8 drives the pin 701 to insert into the socket 702, fixing the elastic buckle 501 with the socket 702 to the movable ring 8. The movable ring 8 is blocked by the baffle 601, thereby preventing the elastic buckle 501 from returning and thus preventing the male head 2 from disengaging from the female head 1.

[0046] Furthermore, the reset drive assembly 703 includes an L-shaped reset latch 7031, which is connected to the outside of the movable ring 8. The reset latch 7031 and the pin 701 are respectively disposed on both sides of the latch block 4.

[0047] The number of baffles 601 in each group is set to two. The two baffles 601 are symmetrically distributed on both sides of the block 4. The two baffles 601 correspond to the reset buckle 7031 and the pin 701 respectively. The surface of the baffle 601 near the reset buckle 7031 is provided with a slot 7032 that matches the reset buckle 7031. The surface of the baffle 601 near the pin 701 is provided with a through hole 704 that corresponds to the pin 701.

[0048] A return spring 705 is connected to the bottom of the pin 701, and the end of the return spring 705 away from the pin 701 is connected to the adjacent baffle 601.

[0049] The function of the return spring 705 is to store energy, while the return buckle 7031 cooperates with the slot 7032 to fix the movable ring 8. When the elastic buckle 501 is engaged, the elastic buckle 501 presses against the return buckle 7031, causing the return buckle 7031 to disengage from the slot 7032. At this time, the movable ring 8 loses its limit, the return spring 705 is released, and the pin 701 is pulled to rotate the movable ring 8. The pin 701 passes through the through hole 704 and the insertion hole 702 in sequence, realizing the self-locking of the elastic buckle 501.

[0050] Multiple handles 9 are installed on the outside of the movable ring 8. The multiple handles 9 are arranged in a ring array about the central axis of the movable ring 8. The handles 9 can rotate the movable ring 8, causing the pin 701 to disengage from the socket 702, making it easy to remove the male head 2.

[0051] The snap-fit ​​end of the elastic buckle 501 is trapezoidal, and the snap-fit ​​end of the reset buckle 7031 is right-angled triangle. The trapezoidal snap-fit ​​end of the elastic buckle 501 allows it to move freely in two directions, while the right-angled triangle reset buckle 7031 allows it to move freely in only one direction. It can be inserted into the slot 7032 and fixed by the slot 7032 to prevent it from being released by the reset spring 705.

[0052] A method of using a radio frequency connector with a self-locking structure for a 5G base station includes the following steps;

[0053] S1. Male and female connector connection: The staff uses screws to install the connecting plate 3 inside the 5G base station, so that the female connector 1 is fixed on the 5G base station. Then, the male connector 2 is aligned with the female connector 1 and inserted, so that the elastic buckle 501 contacts the block 4 along the two baffles 601. Then, the insertion force is increased, and the inclined surface of the trapezoidal block 4 contacts the trapezoidal snap-fit ​​end of the elastic buckle 501. Because the contact surface is inclined, after a certain pushing force is applied, the snap-fit ​​end of the elastic buckle 501 slides with the block 4, so that the elastic buckle 501 bends elastically outward. The snap-fit ​​end of the elastic buckle 501 slides to the top of the block 4 and continues to slide. Finally, it disengages from the top of the block 4, and the elastically bent elastic buckle 501 returns to its original position, so that the elastic buckle 501 is snapped onto the outside of the block 4.

[0054] S2, foolproof triggering: When the male connector 2 is inserted into the female connector 1, if the elastic buckle 501 is not aligned with the buckle block 4, the elastic buckle 501 will be blocked by the baffle 601 and the ring plate 602, thereby preventing the male connector 2 from being inserted and preventing the male connector 2 from being connected to the female connector 1 without being fastened and fixed.

[0055] S3. Automatic locking: When the elastic buckle 501 is reset, it will press down on the reset buckle 7031 that is engaged with the slot 7032. The reset buckle 7031 will disengage from the slot 7032. At this time, the stretched reset spring 705 will pull the pin 701 connected to it, so that the pin 701 passes through the through hole 704 and is inserted into the insertion hole 702 on the elastic buckle 501, locking the elastic buckle 501, thereby realizing the self-locking of the male head 2 and the female head 1, and assembling into the connector body;

[0056] S4. Male and female connector separation: The operator pulls the handle 9, causing the handle 9 to rotate the movable ring 8, which in turn causes the pin 701 to disengage from the socket 702. This causes the pin 701 to stretch the return spring 705 to store energy for the next self-locking trigger. At the same time, the male connector 2 is pulled to disengage from the female connector 1. At this time, the elastic buckle 501 is elastically bent due to the obstruction of the trapezoidal buckle 4, and then disengages from the buckle 4, allowing the male connector 2 to smoothly disengage from the female connector 1. Subsequently, the handle 9 is pulled again, causing the return buckle 7031 to engage with the slot 7032, fixing the movable ring 8, thereby quickly separating the male connector 1 from the female connector 1.

[0057] Detailed Implementation: In actual use, the operator uses screws to install the connecting plate 3 inside the 5G base station, fixing the female connector 1 to the 5G base station. Then, the male connector 2 is inserted, aligned with the female connector 1. At this time, the engaging end of the elastic buckle 501 slides against the locking block 4, causing the elastic buckle 501 to bend outwards elastically, continuing to push the male connector 2, so that the elastic buckle 501 engages with the outside of the locking block 4. When the male connector 2 is inserted into the female connector 1, if the elastic buckle 501 is not aligned with the locking block 4, the elastic buckle 501 will be blocked by the baffle 601 and the ring plate 602, preventing the male connector 2 from being inserted. At the same time, when the elastically bent elastic buckle 501 returns to its original position, it will press down on the reset buckle 7031 engaged in the locking slot 7032. At this time, the stretched reset spring... 705 will pull the connected pin 701, causing the pin 701 to pass through the through hole 704 and insert into the socket 702 on the elastic buckle 501, locking the elastic buckle 501, thereby achieving self-locking of the male head 2 and the female head 1, assembling them into the connector body for use. When it is necessary to separate the male head and the female head, pull the handle 9 to drive the pin 701 out of the socket 702, and then pull the male head 2 outward to quickly separate it from the female head 1. This solves the problem that in the current technology, when the RF connector uses a threaded connection, it is impossible to quickly assemble and separate. The self-locking connection method lacks a foolproof setting, requires repeated adjustments during mating, affects installation efficiency, and is difficult to self-lock, making it easy to loosen and fall off during use.

[0058] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A radio frequency connector with a self-locking structure for 5G base stations, comprising a female connector (1) and a male connector (2), characterized in that: The female connector (1) is connected to a connecting plate (3) for installing the female connector (1) inside the 5G base station. The female connector (1) is connected to a plurality of ring-shaped locking blocks (4). The male connector (2) is provided with a fastening mechanism (5) corresponding to the locking blocks (4). The female connector (1) is provided with a foolproof mechanism (6) and a self-locking mechanism (7). The fastening mechanism (5) includes multiple elastic buckles (501) arranged in a ring and connected to the outside of the male head (2). The elastic buckles (501) match the locking block (4). The male head (2) and the female head (1) are quickly connected by inserting the elastic buckles (501) into the top of the locking block (4). The foolproof mechanism (6) includes multiple sets of baffles (601) corresponding to the locking block (4) and a ring plate (602) connected between the multiple sets of baffles (601). The ring plate (602) surrounds the outside of the female head (1) to block the elastic buckle (501) and prevent the male head (2) from being inserted into the female head (1) when the elastic buckle (501) is misaligned with the locking block (4). The female head (1) is fitted with a movable ring (8) on the outside. The movable ring (8) is rotatably connected to the female head (1). The movable ring (8) passes through the baffle (601) and is slidably connected to the baffle (601). The self-locking mechanism (7) is used to cooperate with the fastening mechanism (5) to lock the elastic buckle (501) when the elastic buckle (501) is reset. The number of the self-locking mechanisms (7) is set to be multiple, each corresponding to a multiple elastic buckle (501). The self-locking mechanism (7) includes an L-shaped pin (701) connected to the outside of the movable ring (8), a socket (702) on the elastic buckle (501) that matches the pin (701), and a reset drive assembly (703). The reset drive assembly (703) is used to fix the movable ring (8) and, when the elastic buckle (501) is engaged, drives the pin (701) to insert into the socket (702) to lock the elastic buckle (501).

2. The RF connector with a self-locking structure for a 5G base station according to claim 1, characterized in that: The reset drive assembly (703) includes an L-shaped reset latch (7031), which is connected to the outside of the movable ring (8). The reset latch (7031) and the pin (701) are respectively disposed on both sides of the latch block (4).

3. A radio frequency connector with a self-locking structure for a 5G base station according to claim 2, characterized in that: The number of baffles (601) in each group is set to two. The two baffles (601) are symmetrically distributed on both sides of the block (4). The two baffles (601) correspond to the reset buckle (7031) and the pin (701) respectively. The surface of the baffle (601) near the reset buckle (7031) is provided with a slot (7032) that matches the reset buckle (7031). The surface of the baffle (601) near the pin (701) is provided with a through hole (704) that corresponds to the pin (701).

4. A radio frequency connector with a self-locking structure for a 5G base station according to claim 3, characterized in that: The bottom of the pin (701) is connected to a return spring (705), and the end of the return spring (705) away from the pin (701) is connected to an adjacent baffle (601).

5. A radio frequency connector with a self-locking structure for a 5G base station according to claim 4, characterized in that: Multiple throttles (9) are installed on the outside of the movable ring (8), and the multiple throttles (9) are arranged in a ring array about the central axis of the movable ring (8).

6. A radio frequency connector with a self-locking structure for a 5G base station according to claim 5, characterized in that: The snap-fit ​​end of the elastic buckle (501) is trapezoidal, and the snap-fit ​​end of the reset buckle (7031) is a right triangle.

7. The method of using a RF connector with a self-locking structure for a 5G base station according to claim 6, characterized in that: Includes the following steps; S1. Male and female connector connection: The staff uses screws to install the connecting plate (3) inside the 5G base station, so that the female connector (1) is fixed on the 5G base station. Then, the male connector (2) is aligned with the female connector (1) and inserted, so that the elastic buckle (501) contacts the card block (4) along the two baffles (601). Then, the insertion force is increased, and the inclined surface of the trapezoidal card block (4) contacts the trapezoidal snap-fit ​​end of the elastic buckle (501). Since the contact surface is inclined, after applying a certain pushing force, the snap-fit ​​end of the elastic buckle (501) slides with the card block (4), so that the elastic buckle (501) bends elastically to the outside. The snap-fit ​​end of the elastic buckle (501) slides to the top of the card block (4) and continues to slide. Finally, it disengages from the top of the card block (4), and the elastic buckle (501) resets, so that the elastic buckle (501) snaps onto the outside of the card block (4). S2, foolproof trigger: When the male (2) is inserted into the female (1), if the elastic buckle (501) is not aligned with the buckle (4), the elastic buckle (501) will be blocked by the baffle (601) and the ring plate (602), thereby preventing the male (2) from being inserted and preventing the male (2) from being connected to the female (1) without being fastened and fixed. S3, Automatic Locking: When the elastic buckle (501) is reset, it will press down on the reset buckle (7031) that is fastened on the slot (7032). The reset buckle (7031) will disengage from the slot (7032). At this time, the stretched reset spring (705) will pull the pin (701) connected to it, so that the pin (701) passes through the through hole (704) and is inserted into the insertion hole (702) on the elastic buckle (501), locking the elastic buckle (501), thereby realizing the self-locking of the male head (2) and the female head (1) and assembling them into the connector body; S4. Male and female heads disengage: The operator pulls the handle (9) to make the handle (9) drive the movable ring (8) to rotate, causing the pin (701) to disengage from the socket (702), causing the pin (701) to stretch the reset spring (705) to store energy so that it can trigger self-locking next time. At the same time, the male head (2) is pulled to disengage from the female head (1). At this time, the elastic buckle (501) is elastically bent due to the obstruction of the trapezoidal buckle (4), and then disengages from the buckle (4), so that the male head (2) can be smoothly disengaged from the female head (1). Then, the handle (9) is pulled again to make the reset buckle (7031) engage with the slot (7032) to fix the movable ring (8), thereby quickly realizing the separation of the male head (2) and the female head (1).

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