Pluggable terminal with protective structure

Abstract

The utility model discloses a plug-in type terminal with a protective structure, which comprises a male plug-in and a female plug-in, the female plug-in comprises a first insulating shell, a metal conductive clip is arranged in an accommodating cavity of the first insulating shell, and an insulating protective cover is arranged at the left end of a wire inlet of the metal conductive clip; the male plug-in comprises a second insulating shell, and the left end of the second insulating shell is in threaded connection with the right end of the first insulating shell; a first silica gel positioning layer is fixedly arranged on the inner wall face of the first wire through hole of the second insulating shell, a first wire clamping groove is formed in the left end of the metal conductive clamp, a positioning block is arranged at the lower left end of the metal conductive clamp, and an elastic limiting block is fixedly arranged at the upper end of the positioning block. A second wire clamping groove is formed in the right end of the metal conductive clamp, a metal elastic clamping piece is arranged at the local position of the inner wall face of the second wire clamping groove, and an arc-shaped clamping part is arranged at the position, close to a right groove opening, of the second wire clamping groove. The above technical scheme is reasonable in structural design, reliable in wire connection, not easy to loosen or fall off, and good in dustproof effect.

Description

Technical Field

[0001] The utility model relates to the technical field of wiring terminals, in particular to a plug-in terminal with a protective structure. Background Art

[0002] The plug-in terminal series consists of two parts that are plugged in and out. One part presses the wire (i.e., the male plug) and then plugs it into the other part (i.e., the female plug). The plug-in terminal series uses an easy-to-operate pluggable connection combined with a firm and universal screw method to connect various parts. In the plug-in terminal, the male plug is the part that connects to the wire, so it is an important component that determines the quality of the terminal, and its quality directly affects the final product. The quality of the plug-in terminal for circuit boards is prone to problems such as poor threading. The reason is that the combination of the wire and the terminal is unstable. There are still deficiencies in the structure of the plug-in terminal in the prior art: the structural design is unreasonable. The existing plug-in terminal generally directly wraps the wire around the connection between the stud and the screw hole and then tightens the stud to fix it. This connection makes the conductive copper wire easy to break and fall off.

[0003] In addition, since the terminal blocks require multiple sets of wires to be connected during use, and the terminal blocks are small in size, the wire connections may become loose due to accidental contact during wiring, and dust may easily enter the grooves where the male and female plugs are connected, affecting the performance of the terminal blocks. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a plug-in terminal with a protective structure which has a reasonable structural design, reliable wire connection, is not easy to loosen or fall off, and has a good dustproof effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plug-in terminal with a protective structure, comprising a male plug-in and a female plug-in, the female plug-in comprising a first insulating shell, a storage cavity is arranged in the first insulating shell, a metal conductive clip is arranged in the storage cavity, a wire inlet is arranged at the left end of the metal conductive clip, an insulating protective cover is arranged at the left end of the wire inlet, and the insulating protective cover is clamped and fixed with the first insulating shell; the male plug-in comprises a second insulating shell, and the left end of the second insulating shell is threadedly connected with the right end of the first insulating shell;

[0006] A first wire through hole is arranged in the second insulating shell, a first silicone positioning layer is fixedly arranged on the inner wall surface of the first wire through hole, a plurality of first threaded through holes are arranged on the second insulating shell in alignment with the local position of the first silicone positioning layer, and a limit screw is arranged in each first threaded through hole; a second wire through hole is arranged on the right end surface of the storage cavity, a first dustproof sealing ring is arranged on the inner wall surface of the second wire through hole, a first guide groove opening to the right is arranged at the right end of the second wire through hole, and the first guide groove is connected with the first wire through hole;

[0007] A first wire clamping groove is arranged at the left end of the metal conductive clip, and a plurality of anti-slip protrusions are arranged at a local position of the inner wall surface of the first wire clamping groove, a positioning block is arranged between the lower left end of the metal conductive clip and the inner bottom surface of the storage cavity, and an elastic limiting block is fixedly arranged at the upper end of the positioning block; a second wire clamping groove is arranged at the right end of the metal conductive clip, and a metal elastic clip is arranged at a local position of the inner wall surface of the second wire clamping groove, and an arc-shaped clamping portion is arranged at the right end of the second wire clamping groove near the groove.

[0008] The utility model is further configured as follows: a threaded joint is integrally provided at the right end of the first insulating shell, a threaded groove is provided on the left end surface of the second insulating shell aligned with the threaded joint position, and the threaded joint is threadedly connected to the threaded groove.

[0009] The utility model is further configured as follows: the insulating protective cover is provided with a third wire through hole at the opening position of the first wire clamping groove, a second dustproof sealing ring is provided on the inner wall surface of the third wire through hole, and the insulating protective cover is provided with a second guide groove at the left port position of the third wire through hole, and the second guide groove is connected to the third wire through hole.

[0010] The utility model is further configured as follows: a second threaded through hole is arranged in the first insulating shell at a local position of the left end of the metal conductive clip, a positioning screw is arranged in the second threaded through hole, and when the positioning screw is tightened, the inner end of the positioning screw presses the left end of the metal conductive clip.

[0011] The utility model is further configured as follows: a first limiting slot is provided at the upper left end of the first insulating shell, a second limiting slot is provided at the lower left end of the first insulating shell, a first clamping protrusion is integrally provided at the upper end of the insulating protective cover, and a second clamping protrusion is integrally provided at the lower end of the insulating protective cover, the first clamping protrusion is clamped and fixed to the first limiting slot, and the second clamping protrusion is clamped and fixed to the second limiting groove.

[0012] The utility model is further configured as follows: the metal conductive clip is made of copper or alloy material, and a stainless steel spring sheet is arranged at the right end of the metal conductive clip, and the stainless steel spring sheet is arranged closely to the outer surface of the metal conductive clip.

[0013] The beneficial effects of the utility model are as follows: compared with the prior art, the utility model has a reasonable structural design, firstly, the existing first wire is inserted into the second guide groove of the insulating protective cover, and the right end of the first wire passes through the central hole of the second dustproof sealing ring in the third wire through hole, the right end metal head of the first wire is inserted into the first wire clamping groove of the metal conductive clamp of the female plug-in, and then the positioning screw is tightened so that the inner end of the positioning screw presses the left end of the metal conductive clamp, so that the left end of the metal conductive clamp clamps the right end of the first wire, and the second dustproof sealing ring forms a seal between the first wire and the inner wall surface of the third wire through hole, and the dustproof effect is good; the anti-slip protrusion on the inner wall surface of the first wire clamping groove is pressed against the first The wire is extended into the first wire clamp groove section to play a limiting role, so that the connection of the metal head at the right end of the first wire is reliable and not easy to loosen or fall off; then the existing second wire is inserted into the first wire through hole of the male plug, and the first silicone positioning layer on the inner wall surface of the first wire through hole plays a role in positioning and dust prevention for the second wire. The left end metal head of the second wire passes through the first guide groove, the second wire through hole and the center hole of the first dustproof sealing ring in sequence and is inserted into the second wire clamp groove of the metal conductive clip. The metal elastic clip and the arc-shaped clamping part at the right end of the metal conductive clip play a positioning role for the left end metal head of the second wire, so that the connection of the left end metal head of the second wire is reliable and not easy to loosen or fall off;

[0014] When the metal head of the second wire in the male plug is connected to the right end of the metal conductive clip in the female plug, the female plug is threadedly connected to the threaded groove of the male plug through a threaded joint, and the male plug and the female plug are threadedly connected and fixed into an integral whole, and the male plug and the female plug are reliably connected and are not easy to loosen or fall off; finally, tighten the limit screw on the male plug, the inner end of the limit screw presses the local position of the first silicone positioning layer, and the local position of the first silicone positioning layer presses the second wire, so that the second wire is reliably connected to the male plug, and is not easy to loosen or fall off, the structural design is reasonable, and the practicability is good.

[0015] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the male plug-in of the embodiment of the utility model;

[0018] Figure 3 for Figure 1 The enlarged schematic diagram of the middle part I;

[0019] Figure 4 It is an assembly schematic diagram of the state of connecting wires in an embodiment of the utility model. DETAILED DESCRIPTION

[0020] In the description of this embodiment, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore, cannot be understood as a limitation on the utility model. In addition, if the terms "first", "second", and "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] See also Figures 1 to 4 The utility model discloses a plug-in terminal with a protective structure, comprising a male plug-in 1 and a female plug-in 2, wherein the female plug-in 2 comprises a first insulating shell 21, wherein a storage cavity 22 is provided in the first insulating shell 21, wherein a metal conductive clip 3 is provided in the storage cavity 22, wherein a wire inlet 31 is provided at the left end of the metal conductive clip 3, wherein an insulating protective cover 4 is provided at the left end of the wire inlet 31, wherein the insulating protective cover 4 is fixedly connected with the first insulating shell 21 by clamping; the male plug-in 1 comprises a second insulating shell 11, wherein the left end of the second insulating shell 11 is threadedly connected with the right end of the first insulating shell 21;

[0022] A first wire through hole 12 is provided in the second insulating shell 11, a first silicone positioning layer 13 is fixedly provided on the inner wall surface of the first wire through hole 12, a plurality of first threaded through holes 14 are provided in the second insulating shell 11 at a local position aligned with the first silicone positioning layer, and a limiting screw 5 is provided in each first threaded through hole 14;

[0023] A second wire through hole 23 is provided on the right end surface of the storage cavity 22, a first dustproof sealing ring 6 is provided on the inner wall surface of the second wire through hole 23, and a first guide groove 24 with an opening facing right is provided at the right end of the second wire through hole 23, and the first guide groove 24 is connected to the first wire through hole 12;

[0024] A first wire clamping groove 32 is provided at the left end of the metal conductive clip 3, and a plurality of anti-slip protrusions 321 are provided at a local position on the inner wall surface of the first wire clamping groove 32. A positioning block 7 is provided between the lower left end of the metal conductive clip 3 and the inner bottom surface of the storage cavity 22, and an elastic limiting block 8 is fixedly provided at the upper end of the positioning block 7; a second wire clamping groove 33 is provided at the right end of the metal conductive clip 3, and a metal elastic clip 34 is provided at a local position on the inner wall surface of the second wire clamping groove 33, and an arc-shaped clamping portion 331 is provided at the right end of the second wire clamping groove 33 near the notch.

[0025] Preferably, the metal conductive clip 3 is fixed to the inner wall surface of the storage cavity 22 by a snap-on structure or fixed by screw connection; the outer surface of the first silicone positioning layer 13 is fixed to the inner wall surface of the first wire through hole 12 by glue; the number of the first threaded through holes 14 is set to 1-3; the outer surface of the first dustproof sealing ring 6 is fixed to the inner wall surface of the second wire through hole 23 by glue; at least three anti-slip protrusions 321 are arranged on the inner wall surface of the first wire clamp groove 32, and the anti-slip protrusions 321 are all triangular structures or arc structures; the positioning block 7 is integrally arranged with the inner bottom surface of the storage cavity 22 or fixed by screw connection, the elastic limit block 8 is made of rubber, the lower end of the elastic limit block 8 is glued and fixed to the upper end surface of the positioning block 7, and the upper end surface of the elastic limit block 8 is connected to the lower surface of the metal conductive clip 3. The metal elastic clip 34 is integrally formed with the inner wall surface of the second wire clamping groove 33 or fixed by welding, and the metal elastic clip 34 has a wave-shaped structure.

[0026] In order to make the structural design of the utility model more reasonable, as a preferred embodiment, a threaded joint 25 is integrally provided at the right end of the first insulating shell 21 of this embodiment, and a threaded groove 16 is provided on the left end surface of the second insulating shell 11 in line with the position of the threaded joint, and the threaded joint 25 is threadedly connected to the threaded groove 16.

[0027] The insulating protective cover 4 is provided with a third wire through hole 41 at the opening position of the first wire clamping groove, and a second dustproof sealing ring 9 is provided on the inner wall surface of the third wire through hole 41. The insulating protective cover 4 is provided with a second guide groove 42 at the left port position of the third wire through hole 41, and the second guide groove 42 is connected to the third wire through hole 41.

[0028] The first insulating shell 21 is provided with a second threaded through hole 26 at a local position aligned with the left end of the metal conductive clip. A positioning screw 10 is provided in the second threaded through hole 26. When the positioning screw 10 is tightened, the inner end of the positioning screw 10 presses the left end of the metal conductive clip 3.

[0029] A first limiting slot is provided at the upper left end of the first insulating shell 21, and a second limiting slot is provided at the lower left end of the first insulating shell 21. A first snap-in protrusion is integrally provided at the upper end of the insulating protective cover 4, and a second snap-in protrusion is integrally provided at the lower end of the insulating protective cover 4. The first snap-in protrusion is snap-connected and fixed to the first limiting slot, and the second snap-in protrusion is snap-connected and fixed to the second limiting groove.

[0030] The metal conductive clip 3 is made of copper or alloy, and a stainless steel spring 17 is provided at the right end of the metal conductive clip 3, and the stainless steel spring 17 is provided close to the outer surface of the metal conductive clip 3. Preferably, the inner surface of the stainless steel spring 17 is fixed to the outer surface of the left end of the metal conductive clip 3 by glue or welding. The metal conductive clip 3 is supported by the stainless steel spring 17, which can prevent the metal conductive clip 3 from being deformed, so that the right end of the metal conductive clip 3 clamps the wire more reliably.

[0031] In actual application, firstly, the existing first wire 100 is inserted into the second guide groove 42 of the insulating protective cover 4, and the right end of the first wire 100 passes through the central hole of the second dustproof sealing ring 9 in the third wire through hole 41, and the metal head of the right end of the first wire 100 is inserted into the first wire clamping groove 32 of the metal conductive clamp 3 of the female plug 2, and then the positioning screw 10 is tightened so that the inner end of the positioning screw 10 presses the left end of the metal conductive clamp 3, so that the left end of the metal conductive clamp 3 clamps the right end of the first wire 100, and the second dustproof sealing ring 9 forms a seal between the first wire 100 and the inner wall surface of the third wire through hole 41, and the dustproof effect is good; the anti-slip protrusion 321 on the inner wall surface of the first wire clamping groove 32 is used to prevent the first wire 100 from extending into the first wire clamping groove 32. It plays a limiting role, so that the connection of the metal head at the right end of the first wire 100 is reliable and not easy to loosen or fall off; then the existing second wire 200 is inserted into the first wire through hole 12 of the male plug 1, and the first silicone positioning layer 13 on the inner wall surface of the first wire through hole 12 plays a positioning and dust-proof role for the second wire 200. The left end metal head of the second wire 200 passes through the first guide groove 24, the second wire through hole 23 and the center hole of the first dustproof sealing ring 6 in sequence and is inserted into the second wire clamping groove 33 of the metal conductive clip 3. The metal elastic clip 34 and the arc-shaped clamping part 331 at the right end of the metal conductive clip 3 play a positioning role for the left end metal head of the second wire 200, so that the connection of the left end metal head of the second wire 200 is reliable and not easy to loosen or fall off;

[0032] When the metal head of the second wire 200 in the male plug 1 is connected to the right end of the metal conductive clip 3 in the female plug 2, the female plug 2 is threadedly connected to the thread groove 16 of the male plug 1 through the threaded joint 25, and the male plug 1 and the female plug 2 are threadedly connected and fixed into an integral whole, and the male plug 1 and the female plug 2 are reliably connected and not easy to loosen or fall off; finally, the limit screw 5 on the male plug 1 is tightened, and the inner end of the limit screw 5 presses the local position of the first silicone positioning layer 13, and the local position of the first silicone positioning layer 13 presses the second wire 200, so that the second wire 200 is reliably connected to the male plug 1, and is not easy to loosen or fall off, and the structural design is reasonable and practical.

[0033] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above-mentioned utility model, which fall within the scope of protection of the present invention.

Claims

1. A pluggable terminal with a protective structure, comprising a male plug-in (1) and a female plug-in (2), characterized in that: The female plug (2) comprises a first insulating shell (21), a storage cavity (22) is provided in the first insulating shell (21), a metal conductive clip (3) is provided in the storage cavity (22), a wire inlet (31) is provided at the left end of the metal conductive clip (3), an insulating protective cover (4) is provided at the left end of the wire inlet (31), and the insulating protective cover (4) is fixed to the first insulating shell (21) by clamping; the male plug (1) comprises a second insulating shell (11), the left end of the second insulating shell (11) is threadedly connected to the right end of the first insulating shell (21); A first wire through hole (12) is arranged in the second insulating shell (11), a first silicone positioning layer (13) is fixedly arranged on the inner wall surface of the first wire through hole (12), a plurality of first threaded through holes (14) are arranged in the second insulating shell (11) at local positions aligned with the first silicone positioning layer, and a limiting screw (5) is arranged in each first threaded through hole (14); A second wire through hole (23) is provided on the right end surface of the storage cavity (22), a first dustproof sealing ring (6) is provided on the inner wall surface of the second wire through hole (23), a first guide groove (24) opening to the right is provided at the right end of the second wire through hole (23), and the first guide groove (24) is connected to the first wire through hole (12); The left end of the metal conductive clip (3) is provided with a first wire clamping groove (32), and a plurality of anti-slip protrusions (321) are provided at a local position of the inner wall surface of the first wire clamping groove (32); a positioning block (7) is provided between the lower left end of the metal conductive clip (3) and the inner bottom surface of the storage cavity (22), and an elastic limit block (8) is fixedly provided at the upper end of the positioning block (7); the right end of the metal conductive clip (3) is provided with a second wire clamping groove (33), and a metal elastic clip (34) is provided at a local position of the inner wall surface of the second wire clamping groove (33); and an arc-shaped clamping portion (331) is provided at the right end of the second wire clamping groove (33) near the notch.

2. The plug-in terminal with a protective structure according to claim 1, characterized in that: The right end of the first insulating shell (21) is integrally provided with a threaded joint (25), and the left end surface of the second insulating shell (11) is provided with a threaded groove (16) aligned with the position of the threaded joint, and the threaded joint (25) is threadedly connected to the threaded groove (16).

3. The plug-in terminal with a protective structure according to claim 2, characterized in that: The insulating protective cover (4) is provided with a third wire through hole (41) aligned with the opening position of the first wire clamping groove, a second dustproof sealing ring (9) is provided on the inner wall surface of the third wire through hole (41), and the insulating protective cover (4) is provided with a second guide groove (42) aligned with the left port position of the third wire through hole (41), and the second guide groove (42) is communicated with the third wire through hole (41).

4. A plug-in terminal with a protective structure according to claim 1 or 3, characterized in that: The first insulating shell (21) is provided with a second threaded through hole (26) aligned with a local position of the left end of the metal conductive clip, and a positioning screw (10) is provided in the second threaded through hole (26). When the positioning screw (10) is tightened, the inner end of the positioning screw (10) presses the left end of the metal conductive clip (3).

5. The plug-in terminal with a protective structure according to claim 4, characterized in that: The first insulating shell (21) is provided with a first limit slot at the upper left end, the first insulating shell (21) is provided with a second limit slot at the lower left end, the insulating protective cover (4) is provided with a first clamping protrusion at the upper end, and the insulating protective cover (4) is provided with a second clamping protrusion at the lower end, the first clamping protrusion is clamped and fixed to the first limit slot, and the second clamping protrusion is clamped and fixed to the second limit groove.

6. The plug-in terminal with a protective structure according to claim 1, characterized in that: The metal conductive clip (3) is made of copper or alloy material, and a stainless steel spring sheet (17) is arranged at the right end of the metal conductive clip (3), and the stainless steel spring sheet (17) is arranged in close contact with the outer surface of the metal conductive clip (3).

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