Anti-misplug plug and connector

Abstract

The anti-misplug plug provided by the utility model is used for being matched with a socket in an inserting manner, and comprises a shell and contact pins installed in the shell, the contact pins comprise a first contact pin, a second contact pin arranged around the first contact pin and a third contact pin arranged around the second contact pin, the apertures of the first pin, the second pin and the third pin are successively decreased. By designing the pins into three different sizes and adopting an annular layout mode, misplug can be effectively avoided.

Description

Technical Field

[0001] The embodiments of the utility model relate to an electrical connector, and in particular to an anti-misinsertion plug and a connector. Background Art

[0002] Electrical connectors are widely used in existing aviation, aerospace and other fields. The main function of electrical connectors is to connect cables. The pins of the plugs in existing electrical connectors are generally evenly distributed in the shell, and it is easy to cause mis-insertion when the plugs and sockets are connected. Utility Model Content

[0003] In view of this, an object of the embodiments of the present invention is to provide an anti-misinsertion plug and connector for overcoming the above problems.

[0004] A plug that prevents mis-insertion, used for mating with a socket, comprises: a shell and pins installed in the shell, the pins comprising a first pin, a second pin arranged around the first pin, and a third pin arranged around the second pin, wherein the apertures of the first pin, the second pin, and the third pin decrease in sequence.

[0005] Furthermore, the number of the first pin, the second pin, and the third pin increases sequentially.

[0006] Furthermore, the outer surface of the first pin is provided with a waterproof sealing sleeve and a flange, the waterproof sealing sleeve is used to abut against the inner wall of the socket when the plug and the socket are mated, and the flange is used to limit the position of the plug.

[0007] Furthermore, the shell includes an outer shell, a tail cap, a snap ring, a pin insulator and a connecting sleeve, the pin is installed on the pin insulator, the connecting sleeve is connected to the tail cap, the pin insulator is locked in the outer shell by the snap ring, and the tail cap is threadedly connected to the outer shell.

[0008] Furthermore, a plurality of anti-slip scales are distributed in an annular manner on the outer peripheral surface of the tail cap.

[0009] Furthermore, the outer shell is divided into a connecting part, a hand-holding part and a plug-in part along its length direction. The outer diameter of the hand-holding part is larger than the outer diameters of the plug-in part and the connecting part. An elastic latch is provided on the outer peripheral surface of the plug-in part. When the plug is connected to the socket, the elastic latch is compressed in the radial direction so that the plug is firmly connected to the socket.

[0010] Furthermore, the outer surface of the hand-held part is provided with anti-slip patterns, and the outer surface of the connecting part is provided with external threads, and the external threads are used for threaded connection with the tail cap.

[0011] A connector comprises a socket and the above-mentioned anti-misinsertion plug, wherein the socket is provided with a first socket for respectively plugging with the first pin, a second socket for respectively plugging with the second pin, and a third socket for respectively plugging with the third pin.

[0012] Furthermore, the socket also includes a threaded connection shell and a fastening nut installed on the periphery of the threaded connection shell, and also includes a socket insulator, the socket insulator is installed in the threaded connection shell, and the socket insulator is axially installed with a first socket, a second socket and a third socket.

[0013] The utility model provides an anti-misinsertion plug, which can effectively avoid misinsertion by designing pins of three different sizes and adopting a ring layout. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the explosion structure of an anti-misinsertion plug of the utility model;

[0015] Figure 2 It is a schematic diagram of the exploded structure of the socket of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the connector of the utility model.

[0017] As shown in the figure:

[0018] 1. Shell;

[0019] 2. Insert the pin;

[0020] 11. Outer shell;

[0021] 12. Tail cap;

[0022] 13. Snap ring;

[0023] 14. Pin insulator;

[0024] 15. Connecting sleeve;

[0025] 21. First pin;

[0026] 22. Second pin;

[0027] 23. The third pin;

[0028] 31. First connector;

[0029] 32. Second socket;

[0030] 33. The third socket;

[0031] 34. Threaded connection housing;

[0032] 35. Tighten the nut;

[0033] 36. Socket insulator.

[0034] 100. Prevent mis-insertion of plug;

[0035] 121, anti-slip scales;

[0036] 111. Connecting part;

[0037] 112. Hand-held part;

[0038] 113. Connector;

[0039] 1131, elastic tooth;

[0040] 111a, external thread;

[0041] 200, socket;

[0042] 211, waterproof sealing sleeve;

[0043] 212. Flange. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0045] Embodiment 1

[0046] according to Figure 1The illustrated anti-misplugging plug is used for mating with a socket, and the plug comprises a housing 1 and a pin 2 installed in the housing 1, wherein the pin 2 comprises a first pin 21, a second pin 22 arranged around the first pin 21, and a third pin 23 arranged around the second pin 22, wherein the apertures of the first pin 21, the second pin 22, and the third pin 23 decrease in sequence; preferably, the first pin 21 is a hollow structure, and the second pin 22 and the third pin 23 are solid structures, which can effectively save materials and reduce the overall weight of the plug, and the first pin 21 is a hollow structure, and the second pin 22 and the third pin 23 are solid structures. The main positioning pins make it easier for operators to align with the corresponding positions of the sockets for connection during connection; further preferably, the first pin 21 is arranged in a non-central area of ​​the shell 1, the second pin 22 is semi-wrapped around the first pin 21, and the third pin 23 is semi-wrapped around the second pin 22. This irregular layout can effectively prevent mis-connection when the pins of the plug and the sockets of the socket are connected. Due to the semi-wrapped surrounding, the number of the first pin 21, the second pin 22, and the third pin 23 increases successively.

[0047] Preferably, the outer surface of the first pin 21 is provided with a waterproof sealing sleeve 211 and a flange 212, the waterproof sealing sleeve 211 is used to abut against the inner wall of the socket when the plug and the socket are mated to prevent water, and the flange 212 is used to limit the position of the plug.

[0048] Preferably, the shell 1 includes an outer shell 11, a tail cap 12, a retaining ring 13, a pin insulator 14 and a connecting sleeve 15. The pin insulator 14 is installed with the pin 2 along its axial direction. The connecting sleeve 15 is connected to the tail cap 12. The pin insulator 14 is locked in the outer shell 11 through the retaining ring 13. The tail cap 12 is threadedly connected to the outer shell 11.

[0049] Preferably, a plurality of anti-slip scales 121 are distributed in an annular manner on the outer peripheral surface of the tail cap 12 .

[0050] Preferably, the outer shell 11 is divided into a connecting part 111, a hand-held part 112 and a plug-in part 113 along its length direction. The outer diameter of the hand-held part 112 is larger than the outer diameters of the plug-in part 113 and the connecting part 111. An elastic latch 1131 is provided on the outer surface of the plug-in part 113. The elastic latch 1131 is preferably multiple and evenly distributed on the outer surface of the plug-in part 113. The elastic latch 1131 protrudes from the periphery of the plug-in part 113. When the plug is connected to the socket, the elastic latch 1131 is compressed radially, and the reaction force generated makes the plug and the socket tightly connected.

[0051] Preferably, the outer surface of the hand-held portion 112 is provided with anti-slip patterns, and the outer surface of the connecting portion 111 is provided with external threads 111 a, and the external threads 111 a are used for threaded connection with the tail cap 12 .

[0052] like Figure 2-Figure 3 A connector shown includes a socket 200 and the above-mentioned anti-misinsertion plug 100, and the socket 200 is provided with a first connecting hole 31 connected to the first pin 21, a second connecting hole 32 connected to the second pin 22, and a third connecting hole 33 connected to the third pin 23.

[0053] Preferably, the socket 200 also includes a threaded connection shell 34 and a fastening nut 35 installed on the periphery of the threaded connection shell 34, and also includes a socket insulator 36, the socket insulator 36 is installed in the threaded connection shell 34, and the socket insulator 36 is axially installed with a first socket 31, a second socket 32 ​​and a third socket 33.

[0054] The serial numbers of the above-mentioned embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0055] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A plug for preventing mis-insertion, used for mating with a socket, characterized in that: include: A shell and a pin installed in the shell, wherein the pin includes a first pin, a second pin arranged around the first pin, and a third pin arranged around the second pin, wherein the apertures of the first pin, the second pin, and the third pin decrease in sequence.

2. The anti-misinsertion plug according to claim 1, characterized in that: The number of the first pins, the second pins, and the third pins increases in sequence.

3. The anti-misinsertion plug according to claim 1, characterized in that: The outer surface of the first pin is covered with a waterproof sealing sleeve and a flange. The waterproof sealing sleeve is used to abut against the inner wall of the socket when the plug and the socket are mated, and the flange is used to limit the position of the plug.

4. The anti-misinsertion plug according to claim 1, characterized in that: The shell includes an outer shell, a tail cap, a snap ring, a pin insulator and a connecting sleeve. The pin is installed on the pin insulator, the connecting sleeve is connected to the tail cap, the pin insulator is locked in the outer shell by the snap ring, and the tail cap is threadedly connected to the outer shell.

5. The anti-misinsertion plug according to claim 4, characterized in that: A plurality of anti-skid scales are distributed in an annular manner on the outer peripheral surface of the tail cap.

6. The anti-misinsertion plug according to claim 4, characterized in that: The outer shell is divided into a connecting part, a hand-held part and a plug-in part along its length direction. The outer diameter of the hand-held part is larger than the outer diameters of the plug-in part and the connecting part. Elastic teeth are provided on the outer peripheral surface of the plug-in part. When the plug is connected to the socket, the elastic teeth are compressed in the radial direction so that the plug and the socket are tightly connected.

7. The anti-misinsertion plug according to claim 6, characterized in that: The outer peripheral surface of the hand-held part is provided with anti-skid patterns, and the outer peripheral surface of the connecting part is provided with external threads, and the external threads are used for threaded connection with the tail cap.

8. A connector, characterized in that: It comprises a socket and the anti-misinsertion plug according to any one of claims 1 to 7, wherein the socket is provided with a first connecting hole connected to the first pin, a second connecting hole connected to the second pin, and a third connecting hole connected to the third pin.

9. A connector according to claim 8, characterized in that: The socket also includes a threaded connection shell and a fastening nut installed on the periphery of the threaded connection shell, and also includes a socket insulator, the socket insulator is installed in the threaded connection shell, and the socket insulator is axially installed with a first socket, a second socket and a third socket.

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