Wiring terminal with protective shell

Abstract

The invention belongs to the technical field of wiring terminals, and provides a wiring terminal with a protective shell, which comprises a plug assembly and a socket assembly which are matched with each other by adopting a locking screw, and is characterized in that the plug assembly comprises a protective shell, a first plug base and a second plug base; the two sides of the protective shell are provided with buckles, the two side faces of the first plug base are provided with side lugs and clamping grooves matched with the buckles, and the side lugs are rotationally provided with unplugging assistors. A plurality of square holes with built-in wire taking buttons are formed in the length direction of the top surface of the first plug base close to the side of the protective shell; a plurality of protrusions are arranged on the two side faces, away from the protective shell side, of the first plug base in the length direction. Holes matched with the protrusions are formed in the side face, close to the first plug base side, of the second plug base in the length direction. The bottom surface of the second plug base, which is far away from the first plug base, is provided with an anti-reverse-plugging mechanism.

Description

Technical Field

[0001] The invention belongs to the technical field of wiring terminals, and in particular relates to a wiring terminal with a protective shell. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] At present, the lines of the quick-connect terminal blocks used in power distribution automation control cabinets are mostly exposed to the outside, without protection against dust and foreign matter, and arcing may occur during use. Summary of the invention

[0004] In order to solve the above problems, the present invention proposes a terminal block with a protective shell, which adopts a plug assembly and a socket assembly to respectively provide a protective shell that does not require screw fixation and an anti-reverse insertion mechanism on the plug assembly, thereby improving the convenience and speed of the terminal block during installation and removal, and increasing the creepage distance.

[0005] According to some embodiments, the solution of the present invention provides a terminal block with a protective housing, which adopts the following technical solution:

[0006] A terminal block with a protective shell, comprising a plug assembly and a socket assembly adapted to each other with locking screws, characterized in that the plug assembly comprises a protective shell, a first plug base and a second plug base; wherein, buckles are provided on both sides of the protective shell, and side ears and slots matching the buckles are provided on both side surfaces of the first plug base, and a pull-out aid is rotatably provided on the side ears; a plurality of square holes with built-in wire-taking buttons are provided in the length direction of the top surface of the first plug base close to the protective shell side; a plurality of protrusions are provided on both side surfaces in the length direction of the first plug base away from the protective shell side, and an opening matching the protrusions is provided on the side surface in the length direction of the second plug base close to the first plug base side; an anti-reverse insertion mechanism is provided on the bottom surface of the second plug base away from the first plug base side.

[0007] As a further technical definition, the bottom surface of the protective shell near the first plug base side is open; one side surface of the protective shell provided with a buckle is open, a chamfer is provided between the other side surface and the top surface of the protective shell, and an arc-shaped groove is provided in the middle of the side surface near the chamfer; the arc-shaped groove is provided between the buckles.

[0008] As a further technical definition, the square holes are arranged in two rows on the edge of the top surface of the first plug base, and two rows of circular holes for inserting wires are arranged between the two rows of square holes.

[0009] Furthermore, the adjacent circular holes are connected to the square holes inside the first plug base. After the wire removal button is placed inside the square hole, the inserted wire is fixed by the jack assembly. When the inserted wire needs to be removed, the groove on the wire removal button is pressed to press the spring piece in the jack assembly, so that the spring piece that clamps the wire leaves the wire and the wire is removed.

[0010] As a further technical limitation, the side ear is provided with a side ear through hole for placing the locking screw; and side ear protrusions and side ear grooves are provided on both sides of the side ear.

[0011] Furthermore, the pull-out aid is provided with a pull-out aid through hole matching the side ear protrusion, and the pull-out aid is rotatably connected to the first plug base through the side ear protrusion and the pull-out aid through hole.

[0012] Furthermore, the pulling aid is also provided with a pulling aid protrusion matching the side ear groove, and the pulling aid is positioned by the pulling aid protrusion and the side ear groove.

[0013] As a further technical definition, the socket assembly at least includes a socket base and a pin arranged on the socket base; locking nut grooves are arranged on both sides of the socket base, and socket base through holes for fixing the locking screws are arranged on both sides of the socket base, and locking nuts matching the locking screws for fixing the plug assembly and the socket assembly are arranged in the locking nut grooves.

[0014] As a further technical limitation, the socket base is provided with an anti-reverse slot matching the anti-reverse insertion mechanism; the anti-reverse slot is provided with two rows of pin holes for inserting long pins and short pins respectively; and both the long pins and the short pins are provided with barb structures.

[0015] Furthermore, the anti-reverse insertion mechanism is arranged in an asymmetric step-shaped structure, and a second plug base through hole matching the pin hole is provided on the bottom surface of the second plug base away from the first plug base.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention adopts a plug assembly and a socket assembly in a matching manner, and a protective shell that does not need to be fixed with screws and an anti-reverse insertion mechanism are respectively provided on the plug assembly, thereby improving the convenience and speed of the terminal block during installation and removal, and increasing the creepage distance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings in the specification that constitute a part of this embodiment are used to provide a further understanding of this embodiment. The schematic embodiments of this embodiment and their descriptions are used to explain this embodiment and do not constitute improper limitations on this embodiment.

[0019] Figure 1 A schematic diagram of the structure of a wiring terminal with a protective housing in an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the structure of a plug assembly 1 in an embodiment of the present invention;

[0021] Figure 3 A schematic structural diagram of a plug assembly 1 according to an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of the structure of a protective housing in an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of the structure of a first plug base in an embodiment of the present invention;

[0024] Figure 6 is a structural schematic diagram of a second plug base in an embodiment of the present invention;

[0025] Figure 7 A schematic diagram of the structure of the pull-out aid in an embodiment of the present invention;

[0026] Figure 8 A schematic diagram of the structure of a line-taking button in an embodiment of the present invention;

[0027] Fig. 9 is a structural schematic diagram of a jack assembly in an embodiment of the present invention;

[0028] Fig.10 A schematic diagram of the structure of the socket assembly 2 in an embodiment of the present invention;

[0029] Fig.11 A schematic diagram of the structure of a socket base in an embodiment of the present invention;

[0030] Fig.12 A schematic diagram of the structure of a socket base in an embodiment of the present invention;

[0031] Fig.13 A schematic diagram of the structure of a long pin in an embodiment of the present invention;

[0032] Fig.14 A schematic diagram of the structure of a short pin in an embodiment of the present invention;

[0033] Among them, 1. plug assembly; 11. protective shell; 111. buckle; 112. chamfer; 113. arc-shaped groove; 12. first plug base; 121. slot; 1211. slot protrusion; 122. side ear; 1221. side ear protrusion; 1222. side ear groove; 1223. side ear through hole; 123. square hole; 124. round hole; 125. protrusion; 126. anti-slip groove of the first plug base; 13. second plug base; 131. opening; 132. anti-reverse insertion mechanism; 133. Two plug base through holes; 14, auxiliary extraction device; 141, auxiliary extraction device protrusion; 142, auxiliary extraction device through hole; 143, auxiliary extraction device anti-slip groove; 15, wire removal button; 151, wire removal button groove; 16, jack assembly; 161, spring piece; 2, socket assembly; 21, socket base; 211, locking nut groove; 212, socket base through hole; 213, anti-reverse slot; 2131, pin hole; 22, long pin; 221, long pin barb; 23, short pin; 231, short pin barb; 3, locking screw. DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0036] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0037] In the present invention, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention, and do not specifically refer to any part or element in the present invention and should not be understood as limitations on the present invention.

[0038] In the present invention, terms such as "fixed connection", "connected", "connection", etc. should be understood in a broad sense, indicating that it can be fixedly connected, integrally connected or detachably connected; it can be directly connected or indirectly connected through an intermediate medium. For relevant scientific research or technical personnel in this field, the specific meanings of the above terms in the present invention can be determined according to specific circumstances, and they cannot be understood as limitations on the present invention.

[0039] Example

[0040] The embodiment of the present invention introduces a wiring terminal with a protective housing.

[0041] like Figure 1 The wiring terminal with a protective housing shown in the figure comprises a plug assembly 1 and a socket assembly 2 adapted to each other by a locking screw 3; wherein the structure of the plug assembly 1 is as follows Figure 2 and Figure 3 As shown, the socket assembly 2 includes a protective housing 11, a first plug base 12, a second plug base 13, an auxiliary puller 14, a line-removing button 15 and a socket assembly 16; the structure of the socket assembly 2 is as shown in Fig.10 As shown, it includes a socket base 21, a long pin 22 and a short pin 23.

[0042] The following is a detailed structural description of this embodiment in conjunction with the relevant drawings.

[0043] like Figure 4 The protective shell 11 shown has two buckles 111 at the bottom of both sides, a chamfer 112 is set between one side surface and the top surface, an arc-shaped groove 113 is set on the side with the chamfer 112 (to facilitate tightening the locking screw 3), the other side surface is open (to facilitate the outlet of the wires), and the bottom surface is open.

[0044] like Figure 5 The first plug base 12 shown in the figure is provided with side ears 122 and a card slot 121 matching the buckle 111 on its two side surfaces; a plurality of square holes 123 with built-in wire removal buttons 15 are opened in the length direction of the top surface of the first plug base 12 close to the protective shell 11 side; the square holes 123 are arranged in two rows on the edge of the top surface of the first plug base 12, and two rows of circular holes 124 for inserting wires are arranged between the two rows of square holes 123; a plurality of protrusions 125 and first plug base anti-slip grooves 126125 are arranged on the two side surfaces in the length direction of the first plug base 12 away from the protective shell 11 side; and a pull-out aid 14 is rotatably arranged on the side ear 122.

[0045] like Figure 5 and Figure 7As shown, the side ear 122 is provided with a side ear through hole 1223 for placing the locking screw 3; side ear protrusions 1221 and side ear grooves 1222 are provided on both sides of the side ear 122; the puller 14 is provided with a puller through hole 142 matching the side ear protrusion 1221, and the puller is rotatably connected to the first plug base through the side ear protrusion 1221 and the puller through hole 142; the puller is also provided with a puller protrusion 141 matching the side ear groove 1222, and the puller is positioned through the puller protrusion 141 and the side ear groove 1222; the puller 14 is also provided with a puller anti-slip groove 143.

[0046] It should be noted that the puller 14 is used to separate the plug assembly 1 and the socket assembly 2 with less effort; the puller 14 is designed based on the lever principle. The puller anti-slip groove 143 is pressed by hand to pry it apart to make the puller 14 rotate along the axis of the side ear protrusion 1221 to achieve the separation of the plug assembly 1 and the socket assembly 2.

[0047] like Figure 5 , Figure 8 and Fig. 9 As shown, the adjacent circular holes 124 are connected with the square holes 123 inside the first plug base 12. After the wire removal button 15 is placed inside the square hole 123, the inserted wire is fixed by the jack assembly 16. When the inserted wire needs to be removed, the wire removal button groove 151 is pressed to press the spring piece 161, so that the spring piece 161 that clamps the wire leaves the wire and the wire is removed.

[0048] like Figure 6 As shown, an opening 131 matching the protrusion 125 is provided on the side surface in the length direction of the second plug base 13 close to the first plug base 12; an anti-reverse insertion mechanism 132 is provided on the bottom surface of the second plug base 13 away from the first plug base 12; the anti-reverse insertion mechanism 132 is arranged in an asymmetric step-shaped structure, and a second plug base through hole 133 matching the pin hole 2131 is provided on the bottom surface of the second plug base 13 away from the first plug base 12.

[0049] It should be noted that the protrusion 125 and the opening 131 constitute an anti-dropping structure for the first plug base 11 and the second plug base 12 .

[0050] It should be noted that the widths of the protective housing 11 , the first plug base 12 and the second plug base 13 are set to be consistent.

[0051] like Fig.10 The socket assembly 2 shown in the figure comprises a socket base 21 and pins arranged on the socket base; wherein the structural schematic diagram of the socket base is as shown in Fig.11 and Fig.12As shown, locking nut grooves 211 are provided on both sides of the socket base 21, and socket base through holes 212 for fixing locking screws 3 are provided on both sides of the socket base 21. Locking nuts matching the locking screws 3 for fixing the plug assembly 1 and the socket assembly 2 are arranged in the locking nut grooves 211; an anti-reverse insertion slot 213 matching the anti-reverse insertion mechanism 132 is provided on the socket base 21; two rows of pin holes 2131 are provided on the anti-reverse insertion slot 213 for inserting long pins 22 and short pins 23 respectively; as shown in FIG. Fig.13 and Fig.14 As shown, the long pin 22 and the short pin 23 are respectively provided with a long pin barb 221 and a short pin barb 231 to fix the long pin 22 and the short pin 23.

[0052] This embodiment does not require the use of screws to fix the protective housing, and is particularly convenient to install and remove. It can also protect the wiring terminals, making them safer to use. In terms of function, it can achieve fast wiring and disconnection, and reliable connection function; in terms of electrical performance, it also increases the creepage distance of the product, and can adapt to more environments when used; the designed parts are easy to process, so that the overall product can effectively control costs while ensuring various requirements.

[0053] The above description is only a preferred embodiment of the present embodiment and is not intended to limit the present embodiment. For those skilled in the art, the present embodiment may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present embodiment shall be included in the protection scope of the present embodiment.

Claims

1. A terminal block with a protective housing, comprising a plug assembly and a socket assembly adapted to each other by a locking screw, characterized in that: The plug assembly includes a protective shell, a first plug base and a second plug base; wherein, buckles are provided on both sides of the protective shell, and side ears and slots matching the buckles are provided on both side surfaces of the first plug base, and a pull-out aid is rotatably provided on the side ears; a plurality of square holes with built-in wire-taking buttons are provided in the length direction of the top surface of the first plug base close to the protective shell side; a plurality of protrusions are provided on both side surfaces in the length direction of the first plug base away from the protective shell side, and openings matching the protrusions are provided on the side surfaces in the length direction of the second plug base close to the first plug base side; an anti-reverse insertion mechanism is provided on the bottom surface of the second plug base away from the first plug base side.

2. A terminal block with a protective housing as claimed in claim 1, characterized in that: The bottom surface of the protective shell near the first plug base is open; one side surface of the protective shell with a buckle is open, a chamfer is provided between the other side surface and the top surface of the protective shell, and an arc-shaped groove is provided in the middle of the side surface near the chamfer; the arc-shaped groove is provided between the buckles.

3. A terminal block with a protective housing as claimed in claim 1, characterized in that: The square holes are arranged in two rows on the edge of the top surface of the first plug base, and two rows of circular holes for inserting wires are arranged between the two rows of square holes.

4. A terminal block with a protective housing as claimed in claim 3, characterized in that: The adjacent circular holes are connected to the square holes inside the first plug base. After the wire removal button is placed inside the square hole, the inserted wire is fixed by the jack assembly. When the inserted wire needs to be removed, the groove on the wire removal button is pressed to press the spring piece in the jack assembly, so that the spring piece that clamps the wire leaves the wire and the wire is removed.

5. A terminal block with a protective housing as claimed in claim 1, characterized in that: The side ear is provided with a side ear through hole for placing the locking screw; and side ear protrusions and side ear grooves are provided on both sides of the side ear.

6. A terminal block with a protective housing as claimed in claim 5, characterized in that: The pull-out aid is provided with a pull-out aid through hole matching the side ear protrusion, and the pull-out aid is rotatably connected to the first plug base through the side ear protrusion and the pull-out aid through hole.

7. A terminal block with a protective housing as claimed in claim 5, characterized in that: The pull-out aid is also provided with a pull-out aid protrusion matching the side ear groove, and the pull-out aid is positioned by the pull-out aid protrusion and the side ear groove.

8. A terminal block with a protective housing as claimed in claim 1, characterized in that: The socket assembly at least includes a socket base and a pin arranged on the socket base; locking nut grooves are arranged on both sides of the socket base, and socket base through holes for fixing the locking screws are arranged on both sides of the socket base, and locking nuts matching the locking screws for fixing the plug assembly and the socket assembly are arranged in the locking nut grooves.

9. A terminal block with a protective housing as claimed in claim 1, characterized in that: The socket base is provided with an anti-reverse insertion slot matching the anti-reverse insertion mechanism; the anti-reverse insertion slot is provided with two rows of pin holes for inserting long pins and short pins respectively; and both the long pins and the short pins are provided with barb structures.

10. A terminal block with a protective housing as claimed in claim 9, characterized in that: The anti-reverse insertion mechanism is arranged in an asymmetric step-shaped structure, and a second plug base through hole matching the pin hole is provided on the bottom surface of the second plug base away from the first plug base.

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