Round push-pull self-locking connector

Abstract

The utility model provides a circular push-pull self-locking connector, which is used for signal transmission and comprises a plug and a socket. A first semicircular boss is arranged on the outer circumference of the front end of the shell of the plug, and a second semicircular boss is correspondingly arranged on the inner circumference of the front end of the shell of the socket, so that radial positioning fit is formed; the outer circumference of the housing of the plug is provided with an axial clamping groove, and the inner wall of the housing of the socket is provided with an elastic clamping block, thereby forming an axial clamping dual-positioning structure. According to the circular push-pull self-locking connector provided by the invention, through a unique dual-positioning structure, the anti-loosening capability of the connector in complex environments such as vibration and the like is greatly improved, and high-quality stable transmission of signals can be effectively realized.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of signal transmission equipment, and particularly relates to a circular push-pull self-locking joint. BACKGROUND

[0002] In the field of signal transmission, the performance of a connector is crucial. However, the existing connector is usually not stable enough when connected, and is prone to looseness, which causes unstable signal transmission.

[0003] For example, the single axial positioning of the existing connector is prone to cause the plug and the socket to rotate circumferentially when connected, and causes the signal pin to be offset. In addition, the traditional clamping groove positioning structure may be loose in a vibrating environment, which affects the stability of signal transmission. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the application provides a circular push-pull self-locking joint, which realizes accurate positioning and stable connection of the plug and the socket, improves the stability of the connection, and improves the quality of signal transmission.

[0005] The application provides a circular push-pull self-locking joint for signal transmission, which comprises a plug and a socket. A first semicircular boss is arranged on the outer circumference of the front end of the shell of the plug, and a second semicircular boss is arranged on the inner circumference of the front end of the shell of the socket in correspondence, so as to form a radial positioning cooperation. An axial clamping groove is arranged on the outer circumference of the shell of the plug, and an elastic clamping block is arranged on the inner wall of the shell of the socket, so as to form a double positioning structure of axial clamping.

[0006] The plug further comprises a tail cap, a shielding sheet, a ratchet mechanism and a male pin, the tail cap is connected with the shell of the plug through threads, the shielding sheet and the ratchet mechanism are arranged inside the shell of the plug, and the ratchet mechanism is arranged at one end of the shell of the plug away from the tail cap.

[0007] The ratchet mechanism comprises a ratchet wheel and a pawl, the ratchet wheel is rotationally connected with the shell of the plug, the pawl is connected with the shell of the plug through a spring, and the ratchet mechanism can be matched with a tooth groove on the shell of the socket to realize self-locking.

[0008] The socket further comprises a sealing ring, a six-groove nut, an insulator, a ground pin and a female pin, the sealing ring is arranged at the front end of the shell of the socket, the six-groove nut is connected with the shell of the socket through threads, the insulator is arranged inside the shell of the socket, the ground pin is used for grounding, and the male pin and the female pin are used for signal transmission.

[0009] The first semicircular boss has an arc of 180-240 degrees, a height of 0.8-1.5 mm, and a radial fitting gap of the first semicircular boss and the second semicircular boss is less than or equal to 0.08 mm.

[0010] The number of the axial clamping grooves is 2-6, the bottom of the axial clamping groove is provided with a guide slope, the front end of the elastic clamping block is a wedge-shaped structure, and the rear end of the elastic clamping block is connected with a return spring.

[0011] In the embodiment, the circular push-pull self-locking connector realizes circumferential high-precision positioning through precise fitting of the radial first semicircular boss and the second semicircular boss, ensures accurate phases of the male needle core and the female needle core, and effectively avoids signal transmission failure caused by needle core deviation. In addition, the axial clamping groove and the elastic clamping block are clamped to form a stable axial self-locking structure, which greatly improves the anti-loosening ability of the connector in a complex environment such as vibration. The circular push-pull self-locking connector can effectively realize high-quality and stable transmission of signals through the unique double positioning structure. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0013] Figure 1 is a structural schematic view of a plug provided by the embodiment of the present application;

[0014] Figure 2 is a top view structural schematic view of the plug provided by the embodiment of the present application;

[0015] Figure 3 is still another structural schematic view of the plug provided by the embodiment of the present application;

[0016] Figure 4 is a structural schematic view of a socket provided by the embodiment of the present application;

[0017] Figure 5 is a top view structural schematic view of the socket provided by the embodiment of the present application;

[0018] Figure 6 is still another structural schematic view of the socket provided by the embodiment of the present application.

[0019] Explanation of reference signs:

[0020] 10 - plug, 20 - socket, 11 - first semicircular boss, 12 - axial clamping groove, 13 - tail nut, 16 - male needle core, 21 - second semicircular boss, 22 - elastic clamping block, 24 - six-groove nut, 25 - insulator, 27 - female needle core. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0022] Reference herein to "an embodiment" or "embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiment or embodiments can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. Those skilled in the art will appreciate that embodiments described herein can be combined with other embodiments.

[0023] Please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 . The present application provides a circular push-pull self-locking connector for signal transmission, comprising a plug 10 and a socket 20. The front end of the shell of the plug 10 is provided with a first semicircular boss 11 on the outer circumference, and the front end of the shell of the socket 20 is provided with a second semicircular boss 21 on the inner circumference, forming a radial positioning cooperation. The outer circumference of the shell of the plug 10 is provided with an axial clamping groove 12, and the inner wall of the shell of the socket 20 is provided with an elastic clamping block 22, forming a double positioning structure of axial clamping.

[0024] Specifically, the double positioning working principle of the circular push-pull self-locking connector is as follows: first, when the plug 10 is inserted, the first semicircular boss 11 and the second semicircular boss first butt joint, realizing circumferential positioning through arc surface cooperation, ensuring that the male and female needle cores 27 are accurately aligned, thereby forming a radial positioning cooperation. Further, continue to push the plug 10, the axial clamping groove 12 slides along the surface of the elastic clamping block 22, and when reaching the predetermined position, the elastic clamping block 22 is embedded in the bottom of the axial clamping groove 12 under the action of the spring force, thereby forming an axial clamping self-locking structure.

[0025] Optionally, the first semicircular boss 11 has an arc of 180°-240°, and a height of 0.8-1.5 mm. In this embodiment, the semicircular boss with a specific arc and height can effectively disperse external tension and torsion, so that the first semicircular boss 11 and the second semicircular boss 21 can tightly engage in a vibrating environment, reducing the risk of loose displacement.

[0026] Further optionally, the radial fitting gap between the first semicircular boss 11 and the second semicircular boss 21 is ≤0.08 mm, ensuring high-precision positioning.

[0027] Optionally, the number of axial clamping grooves 12 is 2-6, the bottom of the axial clamping groove 12 is provided with a guide slope, the front end of the elastic clamping block 22 is a wedge-shaped structure, and the rear end of the elastic clamping block 22 is connected to a return spring. During the insertion of the plug 10, the guide slope cooperates with the wedge-shaped structure to guide the plug 10 to slide along the correct axis quickly and smoothly, greatly shortening the docking time, avoiding component wear caused by insertion angle deviation, and improving the service life and assembly efficiency of the connector.

[0028] In summary, in this embodiment, the circular push-pull self-locking connector realizes circumferential high-precision positioning through the precise fitting of the radial first semicircular boss 11 and the second semicircular boss 21, ensures the accurate phase of the male and female needle cores 27, and effectively avoids signal transmission failures caused by needle core deviation. In addition, the axial clamping groove 12 and the elastic clamping block 22 form a stable axial self-locking structure, greatly improving the anti-loose ability of the connector in complex environments such as vibration. The circular push-pull self-locking connector can effectively realize high-quality and stable transmission of signals through the unique double positioning structure.

[0029] Please refer to Figure 1 and Figure 3 . The plug 10 also includes a tail cap 13, a shielding sheet, a ratchet mechanism, and a male needle core 16. The tail cap 13 is connected to the shell of the plug 10 through threads. The shielding sheet and the ratchet mechanism are both arranged inside the shell of the plug 10, and the ratchet mechanism is arranged at the end of the shell of the plug 10 away from the tail cap 13.

[0030] Optionally, the shielding sheet is made of metal, for example, the shielding sheet can be made of silver-plated copper sheet. Further optionally, the thickness of the shielding sheet is 0.1-0.3 mm. During signal transmission, the shielding sheet can effectively block the influence of external electromagnetic interference on the transmission of the internal male needle core 16, prevent internal signals from radiating outward, and avoid interfering with surrounding electronic equipment.

[0031] Optionally, the inner side of the shielding sheet is provided with an insulator 25 made of a material with good insulation performance, such as plastic or rubber, for isolating the male needle core 16 and the shell to prevent short circuit.

[0032] Optionally, the male needle core 16 is arranged inside the insulator 25 for signal transmission, and the number of male needle cores 16 can be set according to actual needs and uniformly distributed inside the insulator 25.

[0033] In this embodiment, when the plug 10 is connected with the socket 20, the ratchet mechanism cooperates with the corresponding structure of the socket 20 to achieve mechanical self-locking. Compared with the traditional buckle connection mode, the ratchet mechanism has stronger anti-loosening capability and can keep the connection stable in harsh environments such as violent vibration and impact, preventing the plug 10 and the socket 20 from accidentally separating and causing signal interruption. At the same time, the one-way locking feature of the ratchet mechanism allows the connector to be separated only through a specific unlocking operation after connection, further improving the safety and reliability of use.

[0034] Optionally, the ratchet mechanism includes a ratchet wheel and a pawl, the ratchet wheel is rotationally connected with the shell of the plug 10, the pawl is connected with the shell of the plug 10 through a spring, and the ratchet mechanism can cooperate with the tooth groove on the shell of the socket 20 to achieve self-locking.

[0035] In this embodiment, when the plug 10 is connected with the socket 20, the ratchet wheel can rotate smoothly and precisely engage with the tooth groove on the shell of the socket 20, and the pawl tightly clamps the ratchet wheel under the action of the spring elastic force, forming a reliable mechanical self-locking structure. Compared with the traditional plug-in connection, this self-locking mode can ensure the connection stability of the connector under external force pulling, vibration and other conditions, effectively avoid the separation of the plug 10 and the socket 20 caused by accidental external force, and ensure the continuity of signal transmission.

[0036] Please refer to Figure 6 . The socket 20 further includes a sealing ring, a six-groove nut 24, an insulator 25, a ground needle, and a female needle core 27. The sealing ring is arranged at the front end of the shell of the socket 20, the six-groove nut 24 is connected with the shell of the socket 20 through threads, the insulator 25 is arranged inside the shell of the socket 20, the ground needle is used for grounding, and the male needle core 16 and the female needle core 27 are used for signal transmission.

[0037] Optionally, the sealing ring is made of an elastic material, such as rubber, which can form a seal when the plug 10 is inserted into the socket 20 to prevent liquid and dust from entering the inside.

[0038] Optionally, the six-groove nut 24 is arranged at the tail of the shell of the socket 20 and connected with the shell through threads, for fixing the socket 20.

[0039] Optionally, the insulator 25 is arranged inside the shell of the socket 20, and the ground pin and the female pin cores 27 are arranged inside the insulator 25, the ground pin is used for grounding to ensure the stability of signal transmission, and the female pin cores 27 correspond to the male pin cores 16 and are the same in number and are used for receiving the signals transmitted by the male pin cores 16.

[0040] In a specific embodiment of the present application, when it is needed to connect the plug 10 and the socket 20, the front end of the plug 10 is aligned with the front end of the socket 20 and is pushed forward, at this time, the pawl in the ratchet mechanism of the plug 10 is matched with the tooth groove on the shell of the socket 20 under the action of the spring to realize self-locking and prevent the plug 10 from loosening. At the same time, the male pin cores 16 are in contact with the female pin cores 27 to realize signal transmission, and the shielding sheet and the ground pin jointly act to improve the anti-interference ability. The sealing ring is compressed when the plug 10 and the socket 20 are connected to form a good sealing effect. When it is needed to disconnect, the tail cap 13 is pulled backward to separate the pawl from the tooth groove, and the plug 10 can be easily pulled out.

[0041] In the present application, the phrase "embodiment" or "embodiments" means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment that is not mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present application can be combined with other embodiments. In addition, it should be understood that the features, structures or characteristics described in the embodiments of the present application can be combined with each other without contradiction, to form another embodiment of the present application without departing from the spirit and scope of the technical scheme of the present application.

[0042] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical scheme of the present application and not to limit it, although the present application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that the technical scheme of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical scheme of the present application.

Claims

1. A circular push-pull self-locking connector for signal transmission, comprising a plug and a socket, characterized in that: The plug housing has a first semi-circular boss on its outer circumference at the front end, and the socket housing has a corresponding second semi-circular boss on its inner circumference at the front end, forming a radial positioning fit; the plug housing has an axial groove on its outer circumference, and the socket housing has an elastic block on its inner wall, forming a dual positioning structure for axial engagement.

2. The circular push-pull self-locking connector as described in claim 1, characterized in that, The plug also includes a tail nut, a shield, a ratchet mechanism, and a male pin. The tail nut is connected to the plug housing by threads. The shield and the ratchet mechanism are both located inside the plug housing, and the ratchet mechanism is located at the end of the plug housing opposite to the tail nut.

3. The circular push-pull self-locking connector as described in claim 2, characterized in that, The ratchet mechanism includes a ratchet and a pawl. The ratchet is rotatably connected to the housing of the plug, and the pawl is connected to the housing of the plug via a spring. The ratchet mechanism can engage with the toothed groove on the socket housing to achieve self-locking.

4. The circular push-pull self-locking connector as described in claim 1, characterized in that, The socket also includes a sealing ring, a six-slot nut, an insulator, a ground pin, and a female pin core. The sealing ring is located at the front end of the socket housing. The six-slot nut is connected to the socket housing by threads. The insulator is located inside the socket housing. The ground pin is used for grounding. The male and female pin cores are used for signal transmission.

5. The circular push-pull self-locking connector as described in claim 1, characterized in that, The first semi-circular boss has an arc of 180°-240°, a height of 0.8-1.5mm, and a radial fit clearance of ≤0.08mm between the first semi-circular boss and the second semi-circular boss.

6. The circular push-pull self-locking connector as described in claim 1, characterized in that, The number of axial slots is 2-6, the bottom of the axial slots is provided with a guide slope, the front end of the elastic block is a wedge-shaped structure, and the rear end of the elastic block is connected to a reset spring.

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