A push-pull self-locking connector assembly

Abstract

The present invention relates to the technical field of connectors, and provides a push-pull self-locking connector assembly, including: a fixed end connector and a movable end connector, the fixed end connector is provided with an internal thread and an annular recessed portion, the movable end connector includes a locking ring and a buckle, the first end of the buckle is fixed in the locking ring, the second end is exposed from the locking ring and abuts against the front end of the locking ring, the end of the second end is provided with a protrusion formed by protruding upward in the circumferential direction, when the movable end connector is pushed into the housing of the fixed end connector, the protrusion is buckled with the annular recessed portion to achieve a fixed connection between the fixed end connector and the movable end connector, when the locking ring is pulled in a direction opposite to the insertion direction of the second end of the buckle, the front end of the locking ring applies pressure to the buckle, so that the annular recessed portion and the protrusion are disengaged, and the fixed end connector and the movable end connector are separated. The present invention can improve the wiring efficiency of electrical equipment, reduce wiring costs, and improve wiring reliability and vibration resistance.

Description

Technical Field

[0001] The invention relates to the technical field of connectors, and in particular to a push-pull self-locking connector assembly. Background Art

[0002] Existing connector locking connection solutions mainly include the following: (1) Internal and external thread locking solution. (2) Locking ring push-pull elastic buckle connection solution. (3) Press-type spring lock connection solution. (4) Push-pull steel ball self-locking connection solution. However, these connector locking connection solutions have the following shortcomings: 1) The locking operation is complicated. The threaded connection requires a specific torque to lock the connection. Small torque cannot achieve the ideal locking effect, or cause the connector to disengage or fail to achieve the expected dust and waterproof protection effect. Large torque has the risk of damaging the connector structure and poor reliability. 2) Low locking efficiency. Thread locking requires step-by-step operation to achieve the locking effect, and the locking efficiency is low. 3) Poor seismic resistance. The threaded locking connector becomes loose or even disengaged under vibration and impact, causing the equipment to stop or be damaged. 4) Since connectors with non-threaded connection structures are mostly used at the active ends of cables, and the corresponding matching connectors are mostly used on the fixed structures of equipment, when using traditional non-threaded locking connectors, the corresponding fixed-end connectors also need to meet this locking structure at the same time. The fixed-end connectors with traditional locking structures are not compatible with the traditional threaded locking cable-end connectors at the same time, which reduces the versatility of the fixed-end connectors and increases the cost of using this traditional non-threaded locking connector. 5) Existing non-threaded locking connectors have complex structures and large dimensions, and are not suitable for smaller active space applications. In addition, due to the complex structure and large number of components of existing non-threaded locking connectors, the wiring costs of users are greatly increased. Summary of the invention

[0003] In view of the above technical problems, the technical solution adopted by the present invention is:

[0004] The embodiment of the present invention provides a push-pull self-locking connector assembly, including: a fixed-end connector and a movable-end connector, the fixed-end connector including a shell, a jack insulator, and a locking nut, the outer periphery of the front end of the shell is provided with an external thread, the locking nut is arranged on the external thread, the interior of the rear end of the shell is provided with an internal thread and an annular recessed portion, the jack insulator is arranged in the shell, and a metal jack is arranged in the jack insulator; the movable-end connector includes a rubber-coated shell, a pin insulator, a pin insulator outer cover, a locking ring and a buckle, the pin insulator is arranged in the pin insulator outer cover, an annular stopper is arranged on the pin insulator outer cover, a metal pin is arranged in the pin insulator, one end of the metal pin is connected to the exposed wire in the cable, and the other end is connected to the metal jack, the locking ring is sleeved on the pin insulator outer cover, and the buckle The first end is fixed in the locking ring, the second end is exposed from the locking ring and abuts against the front end of the locking ring, and the end of the second end is provided with a protrusion protruding upward in the circumferential direction, one end of the rubber-coated shell is connected to the pin insulator outer cover, and the other end is connected to the cable, wherein, when the movable end connector is pushed into the shell of the fixed end connector, the annular recess and the annular stop cooperate with each other to form an insertion channel, the protrusion is inserted into the insertion channel, one end abuts against the annular stop, and the other end is buckled with the annular recess, so as to realize the fixed connection between the fixed end connector and the movable end connector, and when the locking ring is pulled in a direction opposite to the insertion direction of the second end of the buckle, the front end of the locking ring applies pressure to the buckle, so that the annular recess and the protrusion are disengaged, so as to realize the separation of the fixed end connector and the movable end connector.

[0005] The present invention has at least the following beneficial effects:

[0006] The push-pull self-locking connector assembly provided by the embodiment of the present invention has an annular recessed portion inside the fixed end connector, and a buckle with a protruding portion and a locking ring for applying pressure to the buckle are provided on the movable end connector. When the movable end connector is pushed into the fixed end connector, the protruding portion will be buckled with the annular recessed portion to achieve a fixed connection between the two. When the locking ring is pulled backward, the protruding portion will be driven to move downward relative to the annular recessed portion, so that the protruding portion and the annular recessed portion are disengaged, and the fixed end connector and the movable end connector can be separated smoothly. Through this connection method, no additional tools are required, and only a simple push-pull operation is required to achieve the rapid assembly and separation of the fixed end connector and the movable end connector, thereby improving the wiring efficiency of the electrical equipment. In addition, the fixed end connector is provided with an internal thread inside, which can adapt to the movable end connector of the traditional threaded locking structure with an external thread, and has strong applicability. In addition, the self-locking structure of the present invention only includes an annular recessed portion, a buckle with a protruding portion, and a locking ring for applying pressure to the buckle. This self-locking structure is simple and has low manufacturing cost, thereby reducing the wiring cost. Traditional threaded connectors will become loose when used in vibration scenarios, and the connector connection will be unreliable. The self-locking structure of the present invention will not fall out even in a vibration environment, and the connection is reliable, which can improve the vibration resistance and reliability of the connector.

[0007] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0009] Figure 1 A schematic structural diagram of a fixed-end connector and a movable-end connector of a push-pull self-locking connector assembly provided in an embodiment of the present invention;

[0010] Figure 2 An exploded schematic diagram of an active end connector provided by an embodiment of the present invention;

[0011] Figure 3 A cross-sectional view of a push-pull self-locking connector assembly provided by an embodiment of the present invention;

[0012] Figure 4 An enlarged schematic diagram of the self-locking structure of the push-pull self-locking connector assembly provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0014] An embodiment of the present invention provides a push-pull self-locking connector assembly, such as Figure 1 As shown, the assembly may include: a fixed end connector A and a movable end connector B, wherein the fixed end connector is used to connect to a wiring panel or housing of an electrical device, and the movable end connector is used to fix cables. The fixed end connector and the movable end connector may be circular connectors.

[0015] Among them, Figures 1 to 4 As shown, the fixed-end connector A may include a housing 1, a socket insulator 2 and a locking nut 3. The outer periphery of the front end of the housing 1 is provided with an external thread 4, and the locking nut 3 is arranged on the external thread 4. The locking nut is used to lock the fixed-end connector on the housing or panel of the electrical device. The interior of the rear end of the housing 1 is provided with an internal thread 5 and an annular recess 6. The socket insulator 2 is arranged in the housing, and a metal socket 7 is arranged in the socket insulator 2. The socket insulator 2 is provided with a socket groove for inserting the metal socket 7.

[0016] In addition, the rear end of the internal thread 5 of the housing 1 is provided with an L-shaped sealing member 8, and the rear end of the external thread 4 of the housing is provided with an O-shaped sealing member 9. The sealing member may be a rubber sealing ring.

[0017] In the embodiment of the present invention, the external thread on the housing is an M16×1.5 thread.

[0018] In the embodiment of the present invention, Figure 4As shown, the annular recessed portion 6 may include a first annular inclined surface, a second annular inclined surface, and an annular chamfered surface connecting the first annular inclined surface and the second annular inclined surface. The first annular inclined surface may be formed by rotating the first oblique line D1 for one circle relative to the central axis direction of the housing of the fixed end connector, the second annular inclined surface may be formed by rotating the second oblique line D2 for one circle relative to the central axis direction of the housing of the fixed end connector, and the annular chamfered surface may be formed by rotating the first arc line C1 for one circle relative to the central axis direction of the housing of the fixed end connector, wherein the first oblique line D1 is inclined to the upper right relative to the axial direction of the housing, and the second oblique line D2 is inclined to the lower right relative to the axial direction of the housing of the fixed end connector. The angle between the straight line where the first oblique line D1 and the second oblique line D2 are located may be approximately equal to 90°. The angle between the second oblique line D2 and the axial direction of the housing of the fixed end connector may be 45° to 50°.

[0019] In the embodiment of the present invention, the interior of the fixed-end connector is provided with internal threads, which can be adapted to the movable-end connector of the traditional thread locking structure and has strong applicability.

[0020] Furthermore, if Figures 1 to 4 As shown, the active end connector B includes a rubber-coated shell 10 , a pin insulator 11 , a pin insulator outer cover 12 , a locking ring 13 and a buckle 14 .

[0021] The pin insulator 11 is arranged in the pin insulator outer cover 12, and an annular stopper 15 is arranged on the pin insulator outer cover 12. A metal pin 16 is arranged in the pin insulator 11, and one end of the metal pin 16 is connected to the exposed wire 18 in the cable 17, and the other end is connected to the metal socket 7. The locking ring 13 is sleeved on the pin insulator outer cover 12, and the first end of the buckle 14 is fixed in the locking ring 13, and the second end is exposed from the locking ring and abuts against the front end of the locking ring. The end of the second end is provided with a protrusion 19 protruding upward in the circumferential direction, and one end of the rubber-coated shell 10 is connected to the pin insulator outer cover 12, and the other end is connected to the cable 17. The rubber-coated shell is formed by rubber-coating, and is used to wrap the exposed ends of the wires and cables.

[0022] Among them, when the movable end connector is pushed into the housing of the fixed end connector, the annular recess and the annular stop cooperate with each other to form an insertion channel, and the protrusion is inserted into the insertion channel, one end abuts against the annular stop, and the other end is buckled with the annular recess, so as to realize the fixed connection between the fixed end connector and the movable end connector. When the locking ring is pulled in the direction opposite to the insertion direction of the second end of the buckle, the front end of the locking ring applies pressure to the buckle, so that the annular recess and the protrusion are disengaged, so as to realize the separation of the fixed end connector and the movable end connector. In the embodiment of the present invention, the metal pin 16 and the wire 18 can be connected and conducted by crimping or welding.

[0023] In the embodiment of the present invention, the buckle can be made of an elastic material, and the locking ring can be made of a metal material.

[0024] Furthermore, if Figure 2 and Figure 4 As shown, the buckle 14 may include an annular base and a plurality of clamping parts arranged at intervals along the circumferential direction of the annular base, the annular base is provided with an annular rib 20 on one side close to the clamping part, and the annular rib is provided with a notch 21. The clamping part may include a circumferential arc portion 22 arranged along the circumferential direction and an inclined arc portion 23 arranged upwardly inclined relative to the circumferential arc portion 22, one end of the inclined arc portion 23 is connected to the circumferential arc portion, and the other end is connected to the annular base, and the end of the circumferential arc portion is provided with the protrusion 19.

[0025] like Figure 4As shown, the protrusion 19 may include a first inclined arc surface, a first chamfered arc surface, a second inclined arc surface, a second chamfered arc surface and a third inclined arc surface, the first chamfered arc surface connects the first inclined arc surface, the second chamfered arc surface connects the second inclined arc surface and the third inclined arc surface, and the third inclined arc surface is connected to the circumferential arc portion 22. The first inclined arc surface is formed by rotating the third oblique line D3 at a set angle relative to the central axis direction of the annular base, the first chamfered arc surface is formed by rotating the second arc line C2 at a set angle relative to the central axis direction of the base, the second inclined arc surface is formed by rotating the fourth oblique line D4 at a set angle relative to the central axis direction of the annular base, the second chamfered arc surface is formed by rotating the third arc at a set angle relative to the central axis direction of the base, and the third inclined arc surface is formed by rotating the fifth oblique line D5 at a set angle relative to the central axis direction of the base, that is, the cross section of the protrusion 19 is connected in sequence by the third oblique line D3, the second arc line C2, the fourth oblique line D4, the third arc C3 and the fifth oblique line D5, wherein the third oblique line D3 is connected to the inner surface of the circumferential arc portion 22, and the fifth oblique line D5 is connected to the outer surface of the circumferential arc portion 22. The third oblique line D3 is formed by tilting to the upper left relative to the axial direction of the annular base, the fourth oblique line D4 is formed by tilting to the upper right relative to the axial direction of the annular base, and the fifth oblique line D5 is formed by tilting to the upper left relative to the axial direction of the annular base. The set angle can be set based on actual needs, for example, it can be an angle less than 90°.

[0026] In the embodiment of the present invention, the inclination angles of the third oblique line D3 , the fourth oblique line D4 , and the fifth oblique line D5 may be smaller than 90°, which may be set based on actual needs.

[0027] Furthermore, the angle θ between the extension line of the fifth oblique line D5 and the extension line of the third oblique line D3 is 0≤θ≤θ 0 ,θ 0 It refers to the upper limit of the angle.

[0028] Preferably, θ 0 =180°-θ1, θ1 is the angle between the center line of the cross section of the protrusion 19 and the axis of the circumferential arc-shaped portion 22. Preferably, θ=0.

[0029] Since θ satisfies 0≤θ≤θ0, when the angle between the midline of the cross section of the protrusion 19 and the axis of the circumferential arc portion 22 changes, the value range of the two beveled sides of the protrusion 19 will change, making the setting of the two beveled sides more flexible and also contributing to the diversity of choices when producing buckles.

[0030] In a preferred embodiment, the third oblique line D3 and the fifth oblique line D5 are arranged in parallel.

[0031] Furthermore, the annular stop portion 15 is provided with a third annular inclined surface 34 inclined downwardly relative to the axial direction of the annular base, and the third annular inclined surface is formed by rotating a sixth oblique line inclined downwardly relative to the central axis direction of the shell of the active end connector.

[0032] Among them, when the protrusion and the annular recess are in a buckled state, the fifth oblique line is in contact with the second oblique line, the sixth oblique line is in contact with the third oblique line, the angle α1 between the straight line where the fifth oblique line is located and the straight line where the second oblique line is located meets the following condition: 0≤α1≤10°, and the angle α2 between the straight line where the sixth oblique line is located and the straight line where the third oblique line is located meets the following condition: 0≤α2≤10°. In this way, the annular recess and the protrusion can be tightly connected, thereby ensuring a reliable connection between the fixed end connector and the movable end connector.

[0033] When the movable end connector is inserted into the fixed end connector, the annular stopper 15 is located in the space between the internal thread and the annular recess.

[0034] Furthermore, if Figure 4 As shown, a first annular groove 24 is formed at the front end of the lock ring 13, and a second annular groove 25 is formed at the rear end. An annular stopper 26 is also provided on the pin insulator outer cover 12, wherein the first annular groove 24 is used for the annular rib 22 to be embedded, and the second annular groove 25 is used for the annular stopper 26 to be embedded.

[0035] In the embodiment of the present invention, the lock ring is fixed on the outer cover of the pin insulator by press-fitting. Specifically, the buckle is first set on the outer cover of the pin insulator, and then the lock ring is inserted from the front end of the buckle. Due to the notch on the buckle, when the lock ring is inserted, the annular rib is deformed, so that the buckle is pressed into the lock ring, and the annular rib is embedded in the first annular groove to achieve the limit of the buckle. The lock ring continues to move backward, and the annular limit part of the outer cover of the pin insulator is pressed from the rear end opening of the lock ring and embedded in the second annular groove to achieve the installation of the lock ring.

[0036] In the embodiment of the present invention, Figure 4 As shown, a chamfered surface 27 is formed inside the front end of the lock ring, and there is almost no fit between the chamfered surface 27 and the buckle. When the lock ring is pulled backward, the chamfered surface 27 presses the inclined arc portion 23 of the buckle, causing the protrusion to move downward and disengage from the annular recessed portion.

[0037] In an exemplary embodiment of the present invention, the pin insulator 11 and the pin insulator outer cover 12 are formed integrally.

[0038] In an exemplary embodiment of the present invention, the pin insulator 11 and the pin insulator outer cover 12 are formed separately, wherein the pin insulator outer cover 12 is made of metal material.

[0039] In the case where the pin insulator 11 and the pin insulator cover 12 are formed separately, as shown in FIG. Figure 3 and Figure 4 As shown, the push-pull self-locking connector assembly provided in the embodiment of the present invention also includes: a shielding sleeve 28 and a crimping ring 29. Both the shielding sleeve and the crimping ring are made of metal. The crimping ring 29 is sleeved on the cable 17 and located in the rubber-coated shell 10. One end of the shielding sleeve 28 is connected to the pin insulator outer cover 12 through a snap-on structure, and the other end is sleeved on the crimping ring 29. The pin insulator outer cover, the shielding sleeve and the crimping ring form an electromagnetic protection structure, which can reduce electromagnetic interference, improve signal transmission quality, and play an electromagnetic protection role.

[0040] In the embodiment of the present invention, after the shielding layer of the cable is stripped off, it can be pressed backwards between the crimping ring and the cable sheath.

[0041] Furthermore, if Figure 4 As shown, the snap-fit ​​structure may include a first groove 30 and a first stopper 31 provided on the outer cover of the pin insulator and a second groove 32 and a second stopper 33 provided on the shielding sleeve. The first stopper 31 is located at the rear end of the first groove 30, and the second stopper 33 is located at the front end of the second groove 32. By inserting the first stopper into the second groove and inserting the second stopper into the first groove, the fixed connection between the outer cover of the pin insulator and the shielding sleeve is achieved.

[0042] The push-pull self-locking connector assembly provided by the embodiment of the present invention has an annular recessed portion inside the fixed end connector, and a buckle with a protruding portion and a locking ring for applying pressure to the buckle are provided on the movable end connector. When the movable end connector is pushed into the fixed end connector, the protruding portion will be buckled with the annular recessed portion to achieve a fixed connection between the two. When the locking ring is pulled backward, the protruding portion will be driven to move downward relative to the annular recessed portion, so that the protruding portion and the annular recessed portion are disengaged, and the fixed end connector and the movable end connector can be separated smoothly. Through this connection method, no additional tools are required, and only a simple push-pull operation is required to achieve the rapid assembly and separation of the fixed end connector and the movable end connector, thereby improving the wiring efficiency of the electrical equipment. In addition, the fixed end connector is provided with an internal thread inside, which can adapt to the movable end connector of the traditional threaded locking structure, and has strong applicability. In addition, the self-locking structure of the present invention only includes an annular recessed portion, a buckle with a protruding portion, and a locking ring for applying pressure to the buckle. This self-locking structure is simple and has low manufacturing cost, thereby reducing the wiring cost. Traditional threaded connectors will become loose when used in vibration scenarios, and the connector connection will be unreliable. The self-locking structure of the present invention will not fall out even in a vibration environment, and the connection is reliable, which can improve the vibration resistance and reliability of the connector.

[0043] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution disclosed in the present invention can be achieved, and this document does not limit this.

[0044] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A push-pull self-locking connector assembly, characterized in that: include: A fixed-end connector and a movable-end connector, wherein the fixed-end connector comprises a shell, a jack insulator, and a locking nut, wherein the outer periphery of the front end of the shell is provided with an external thread, the locking nut is provided on the external thread, the interior of the rear end of the shell is provided with an internal thread and an annular recessed portion, the jack insulator is provided in the shell, and a metal jack is provided in the jack insulator; the movable-end connector comprises a rubber-coated shell, a pin insulator, a pin insulator outer cover, a locking ring and a buckle, the pin insulator is provided in the pin insulator outer cover, an annular stopper is provided on the pin insulator outer cover, a metal pin is provided in the pin insulator, one end of the metal pin is connected to the exposed wire in the cable, and the other end is connected to the metal jack, the locking ring is sleeved on the pin insulator outer cover, and the first end of the buckle is fixed in the locking ring, The second end exposes the locking ring and abuts against the front end of the locking ring, and the end of the second end is provided with a protrusion protruding upward in the circumferential direction, one end of the rubber-coated shell is connected to the pin insulator outer cover, and the other end is connected to the cable, wherein, when the movable end connector is pushed into the shell of the fixed end connector, the annular recess and the annular stop cooperate with each other to form an insertion channel, and the protrusion is inserted into the insertion channel, one end abuts against the annular stop, and the other end is buckled with the annular recess, so as to realize the fixed connection between the fixed end connector and the movable end connector, and when the locking ring is pulled in a direction opposite to the insertion direction of the second end of the buckle, the front end of the locking ring applies pressure to the buckle, so that the annular recess and the protrusion are disengaged, so as to realize the separation of the fixed end connector and the movable end connector.

2. The push-pull self-locking connector assembly according to claim 1, characterized in that: The annular recessed portion includes a first annular inclined surface, a second annular inclined surface, and an annular chamfered surface connecting the first annular inclined surface and the second annular inclined surface, wherein the first annular inclined surface is formed by rotating the first oblique line for one circle relative to the central axis direction of the housing of the fixed end connector, the second annular inclined surface is formed by rotating the second oblique line for one circle relative to the central axis direction of the housing of the fixed end connector, and the annular chamfered surface is formed by rotating the first arc line for one circle relative to the central axis direction of the housing of the fixed end connector, wherein the first oblique line is inclined to the upper right relative to the axial direction of the housing of the fixed end connector, and the second oblique line is inclined to the lower right relative to the axial direction of the housing of the fixed end connector; The buckle comprises an annular base and a plurality of clamping parts arranged at intervals along the circumferential direction of the annular base, the annular base is provided with an annular rib on one side close to the clamping part, and a notch is provided on the annular rib; the clamping part comprises a circumferential arc portion arranged along the circumferential direction and an inclined arc portion arranged upwardly inclined relative to the circumferential arc portion, one end of the inclined arc portion is connected to the circumferential arc portion, and the other end is connected to the annular base, and the end of the circumferential arc portion is provided with the protrusion, and the protrusion comprises a first inclined arc surface, a first chamfered arc surface, a second inclined arc surface, a second chamfered arc surface and a third inclined arc surface, the first chamfered arc surface connects the first inclined arc surface, the second chamfered arc surface connects the second inclined arc surface and the third inclined arc surface, and the third inclined arc surface is connected to the circumferential arc portion, wherein the first inclined arc surface is formed by rotating the third oblique line relative to the central axis direction of the annular base at a set angle, and the first chamfered arc surface is formed by rotating the third oblique line at a set angle relative to the central axis direction of the annular base, and the first chamfered arc surface is formed by rotating the third oblique line at a set angle relative to the central axis direction of the annular base, and the second ... The angular arc surface is formed by rotating the second arc line at a set angle relative to the central axis direction of the annular base, the second inclined arc surface is formed by rotating the fourth oblique line at a set angle relative to the central axis direction of the annular base, the second chamfered arc surface is formed by rotating the third arc line at a set angle relative to the central axis direction of the annular base, the third inclined arc surface is formed by rotating the fifth oblique line at a set angle relative to the central axis direction of the annular base, the third oblique line is inclined toward the upper left relative to the axial direction of the annular base, the fourth oblique line is inclined toward the upper right relative to the axial direction of the annular base, and the fifth oblique line is inclined toward the upper left relative to the axial direction of the annular base; a third annular inclined surface is provided on the annular stop portion and is inclined downward relative to the axial direction of the annular base, and the third annular inclined surface is formed by rotating the sixth oblique line inclined downward relative to the central axis direction of the shell of the active end connector for one circle.

3. The push-pull self-locking connector assembly according to claim 2, characterized in that: When the protrusion and the annular recess are in a snap-fit ​​state, the fifth oblique line is in contact with the second oblique line, the sixth oblique line is in contact with the third oblique line, the angle α1 between the straight line where the fifth oblique line is located and the straight line where the second oblique line is located satisfies the following condition: 0≤α1≤10°, and the angle α2 between the straight line where the sixth oblique line is located and the straight line where the third oblique line is located satisfies the following condition: 0≤α2≤10°.

4. The push-pull self-locking connector assembly according to claim 2, characterized in that: A first annular groove is formed at the front end of the lock ring, and a second annular groove is formed at the rear end; An annular limiting portion is also provided on the outer cover of the pin insulator, the first annular groove is used for the annular rib to be embedded, and the second annular groove is used for the annular limiting portion to be embedded.

5. The push-pull self-locking connector assembly according to claim 1, characterized in that: The pin insulator and the pin insulator outer cover are formed integrally.

6. The push-pull self-locking connector assembly according to claim 1, characterized in that: The pin insulator and the pin insulator outer cover are formed separately, wherein the pin insulator outer cover is made of metal material.

7. The push-pull self-locking connector assembly according to claim 6, characterized in that: Also includes: A shielding sleeve and a crimping ring, wherein the crimping ring is sleeved on the cable and located in the rubber-coated shell, one end of the shielding sleeve is connected to the outer cover of the pin insulator through a snap-on structure, and the other end is sleeved on the crimping ring, and the outer cover of the pin insulator, the shielding sleeve and the crimping ring form an electromagnetic protection structure.

8. The push-pull self-locking connector assembly according to claim 7, characterized in that: The clamping structure includes a first groove and a first stopper provided on the outer cover of the pin insulator and a second groove and a second stopper provided on the shielding sleeve. The first stopper is located at the rear end of the first groove, and the second stopper is located at the front end of the second groove. By inserting the first stopper into the second groove and inserting the second stopper into the first groove, the fixed connection between the outer cover of the pin insulator and the shielding sleeve is achieved.

9. The push-pull self-locking connector assembly according to claim 1, characterized in that: The metal pin and the wire are connected by crimping or welding.

10. The push-pull self-locking connector assembly according to claim 1, characterized in that: An L-shaped sealing member is arranged at the rear end of the internal thread of the housing, and an O-shaped sealing member is arranged at the rear end of the external thread of the housing.

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