Safe and rapid wiring terminal structure

Abstract

The utility model discloses a safe and rapid wiring terminal structure, which comprises a shell, three groups of cavities are arranged on the shell in parallel, through holes are arranged on the cavities, terminal assemblies are arranged in the cavities, anti-falling caps are arranged on the upper sides of the cavities, the terminal assemblies are arranged between the anti-falling caps and the cavities, metal sheets are arranged in the terminal assemblies, and the metal sheets are connected with the through holes. The terminal assembly comprises a metal wire pressing buckle and a screw with a gap, the metal wire pressing buckle is installed in the cavity in a rolling mode, the screw with the gap is arranged on the metal wire pressing buckle in a threaded connection mode, and the metal sheet is arranged between the metal wire pressing buckle and the screw with the gap. The utility model belongs to the technical field of wiring terminals, and particularly solves the technical problems that in the prior art, wiring efficiency is low, operation is troublesome, rapid wiring cannot be realized, a power line is easy to extrude to one side when a screw presses a single core wire, multiple strands of wires are easy to scatter when the screw presses the multiple strands of wires, contact resistance is too large due to too small contact area, and the like. And when a large current passes through, rapid heating or fire breakout can be caused.

Description

Technical Field

[0001] The utility model belongs to the technical field of wiring terminals, in particular to a safe and fast wiring terminal structure. Background Art

[0002] Terminal blocks are a type of electrical connection product. With increasing power and automation, the stability, reliability and precision of terminal blocks are increasingly required. Traditional electrical connections involve welding the power cord to metal parts. The welding process is extremely complex and unstable, which can easily lead to defects such as loose connections between the power cord and metal parts, cold solder joints, and missing solder joints. The power cord may fall off or not fall off completely if pulled lightly. After the product is powered on, the unreliable contact between the power cord and metal parts may cause excessive resistance at the contact point or sparks, thus causing a fire.

[0003] Therefore, there are now terminals on the market that are specifically used to connect power cords and metals. The terminal shell is plastic and the interior is metal. The power cord and the metal parts are pressed by rotating screws. This terminal has low wiring efficiency and is troublesome to operate. It is impossible to achieve quick wiring. When the screw presses a single-core wire, the power cord is easily squeezed to one side. When the screw presses multiple strands of wire, the multiple strands are easily crushed and dispersed, resulting in too small a contact area and too large a contact resistance. When a large current passes through, it will heat up rapidly or catch fire. Utility Model Content

[0004] The technical problems to be solved by the utility model are:

[0005] The wiring efficiency is low, the operation is troublesome, and quick wiring cannot be achieved. When the screw is pressing a single-core wire, the power cord is easily squeezed to one side. When the screw is pressing a multi-strand wire, the multi-strand wire is easily crushed and dispersed, resulting in a small contact area and excessive contact resistance. When a large current passes through, it will heat up rapidly or catch fire.

[0006] In order to solve the above technical problems, the technical solution proposed by the utility model is: a safe and quick-connect terminal structure, including a shell, three groups of cavities are opened in parallel on the shell, a through hole is provided on the cavity, a terminal assembly is provided in the cavity, an anti-drop cap is provided on the upper side of the cavity, the terminal assembly is provided between the anti-drop cap and the cavity, a metal sheet is provided in the terminal assembly, and the three groups of cavities are in the same straight line.

[0007] Furthermore, the terminal assembly includes a metal wire buckle and a screw with a dielectric, the metal wire buckle is rolled up and installed in the cavity, the screw with a dielectric is threadedly connected to the metal wire buckle and is provided with a through hole that penetrates the cavity.

[0008] Furthermore, the metal sheet is arranged between the metal wire buckle and the screw, the shape of the contact position between the metal wire buckle and the metal sheet is consistent with the shape of the metal sheet, and the shape of the metal sheet is one of a plane or an arc surface.

[0009] Furthermore, the metal sheet is provided with brambles.

[0010] Furthermore, the screw with insert is arranged between the anti-drop cap and the cavity.

[0011] Furthermore, the upper and lower sides of the cavity are respectively an upper limit surface and a lower limit surface.

[0012] Furthermore, a buckle groove is provided on the shell, and the buckle groove is arranged between the three groups of cavities.

[0013] Furthermore, the housing is provided with a positioning column and an anti-fool hole.

[0014] Furthermore, the metal wire buckle is provided with screw threads. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a safe and quick-connect terminal structure proposed by the utility model;

[0016] Figure 2 This is a structural schematic diagram from another angle of a safe and quick-connect terminal structure proposed by the utility model.

[0017] Among them, 1. Screws with inserts, 2. Anti-drop caps, 3. Buckle slots, 4. Metal wire buckles, 5. Upper limit surface, 6. Lower limit surface, 7. Cavity, 8. Positioning columns, 9. Anti-fool holes, 10. Metal sheets.

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of 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.

[0020] like Figure 1-2 As shown, the utility model proposes a safe and quick-connect terminal structure, including a shell, three groups of cavities 7 are opened in parallel on the shell, through holes are provided on the cavity 7, a terminal assembly is provided in the cavity 7, an anti-drop cap 2 is provided on the upper side of the cavity 7, the terminal assembly is arranged between the anti-drop cap 2 and the cavity 7, a metal sheet 10 is provided in the terminal assembly, and the three groups of cavities 7 are in the same straight line.

[0021] In order to achieve a tight connection, the terminal assembly includes a metal wire buckle 4 and a screw 1. The metal wire buckle 4 is rolled up and installed in the cavity 7. The screw 1 is threadedly connected to the metal wire buckle 4 and a through hole is set through the cavity 7. The metal wire buckle 4 is provided with a screw thread.

[0022] In order to increase the contact area and the tightness of the connection, the metal sheet 10 is arranged between the metal wire buckle 4 and the screw 1. The shape of the contact position between the metal wire buckle 4 and the metal sheet 10 is consistent with the shape of the metal sheet 10. The shape of the metal sheet 10 is one of a plane or an arc surface. In order to ensure reliability, a bramble is provided on the metal sheet 10.

[0023] In order to prevent the screw 1 from falling off, the screw 1 is arranged between the anti-falling cap 2 and the cavity 7, and the upper and lower sides of the cavity 7 are respectively an upper limit surface 5 and a lower limit surface 6.

[0024] In order to facilitate the coordination with other structural accessories to prevent movement or tilting, a positioning column 8 and an anti-fool hole 9 are provided on the shell, and a buckle groove 3 is provided on the shell, and the buckle groove 3 is arranged between the three groups of cavities 7.

[0025] When in use, the metal wire buckle 4 is installed in the cavity 7 and the belt screw 1 is screwed in by the anti-drop cap 2 and cooperates with the internal thread of the metal wire buckle 4 to form a terminal assembly. When the screwdriver rotates the belt screw 1 counterclockwise, the belt screw 1 and the metal wire buckle 4 screw threads cooperate to rotate to move the metal wire buckle 4 downward. When the belt screw 1 contacts the lower limit surface 6, the terminal assembly is in a fully open state. At the same time, the belt screw 1 is restricted by the anti-drop cap 2 and cannot fall off. When the metal sheet 10 is inserted into the metal wire buckle 4 and the power cord is placed between the metal sheet 10 and the metal wire buckle 4, when the screwdriver rotates the belt screw 1 clockwise, the belt screw 1 and the metal wire buckle 4 screw threads cooperate to rotate to move the metal wire buckle 4 upward. The belt screw 1 is rotated to a locked state. The metal wire buckle 4 and the metal sheet 10 tightly hold the power cord in a locked state, and the electrical connection is more reliable and stable. The three wiring ports of the neutral wire, live wire and earth wire are in a straight line, and wiring is very convenient. At the same time, the buckle groove 3, the positioning column 8 and the anti-fool hole 9 mainly cooperate with other structural parts to prevent the terminal assembly from moving forward or tilting. There is a limit between the intermediate screw 1 and the anti-drop cap 2, which can prevent the intermediate screw 1 from falling off when the device is opened. The wiring ports of the neutral wire, live wire and earth wire are in a straight line, and the power cord can insert the neutral wire, live wire and earth wire into the wiring ports at one time, and the three wires can be connected at one time. The metal sheet 10 and the metal wire buckle 4 can be rotated by the intermediate screw 1 to clamp the power cord between the two, which can ensure that the power cord will not be crushed or damaged, and the metal sheet 10 has a thorn to prevent the power cord from falling off when it is pulled to ensure stability and reliability. Because both the zero and the metal wire buckle 4 are flat or curved, it can effectively prevent the power cord from deviating to one side and having less contact, thereby causing the contact resistance to become larger and heating under high current conditions.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0028] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A safe and quick-connect terminal structure, comprising a housing, characterized in that: Three groups of cavities (7) are provided in parallel on the shell, a through hole is provided on the cavity (7), a terminal assembly is provided in the cavity (7), an anti-drop cap (2) is provided on the upper side of the cavity (7), the terminal assembly is provided between the anti-drop cap (2) and the cavity (7), a metal sheet (10) is provided in the terminal assembly, and the three groups of cavities (7) are on the same straight line.

2. A safe and quick-connect terminal structure according to claim 1, characterized in that: The terminal assembly comprises a metal wire buckle (4) and a screw (1); the metal wire buckle (4) is rolled up and installed in a cavity (7); the screw (1) is threadedly connected to the metal wire buckle (4) and is provided through a through hole that passes through the cavity (7).

3. A safe and quick-connect terminal structure according to claim 2, characterized in that: The metal sheet (10) is arranged between the metal wire buckle (4) and the screw (1); the shape of the contact position between the metal wire buckle (4) and the metal sheet (10) is consistent with the shape of the metal sheet (10); and the shape of the metal sheet (10) is one of a plane and an arc surface.

4. A safe and quick-connect terminal structure according to claim 3, characterized in that: The metal sheet (10) is provided with brambles.

5. A safe and quick-connect terminal structure according to claim 4, characterized in that: The screw (1) is arranged between the anti-drop cap (2) and the cavity (7).

6. A safe and quick-connect terminal structure according to claim 5, characterized in that: The upper and lower sides of the cavity (7) are respectively an upper limit surface (5) and a lower limit surface (6).

7. A safe and quick-connect terminal structure according to claim 6, characterized in that: A buckle groove (3) is provided on the shell, and the buckle groove (3) is arranged between the three groups of cavities (7).

8. A safe and quick-connect terminal structure according to claim 7, characterized in that: The housing is provided with a positioning column (8) and an anti-fool hole (9).

9. A safe and quick-connect terminal structure according to claim 8, characterized in that: The metal wire pressing buckle (4) is provided with screw threads.

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