A copper-aluminum terminal block with anti-drop function

Abstract

The utility model relates to a copper-aluminum terminal block with an anti-slip function. The technical problem to be solved by the utility model is to provide a copper-aluminum terminal block with an anti-slip function. The technical solution adopted by the utility model: includes a terminal body, a cable clamping block and a cable tightening piece, the terminal body includes a terminal flat portion and a terminal cylindrical portion, the terminal cylindrical portion includes a terminal transition portion, a terminal tightening portion and a terminal docking portion arranged in sequence, a cable insertion port is provided in the terminal cylindrical portion, the cable clamping block is placed in the terminal tightening portion, the terminal tightening portion is provided with a tightening portion threaded hole, and the cable clamping block includes a clamping block arc portion. The advantage of the utility model is that the wire core in the cable can be tightened by the cooperation of the cable clamping block and the cable tightening piece, and the compression tooth group can pierce the insulation of the cable after crimping, so that the cable is not easy to loosen and fall off, and the safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of copper-aluminum connecting terminals, in particular to a copper-aluminum connecting terminal with an anti-dropping function. Background Art

[0002] Terminal blocks are an accessory product used to achieve electrical connections, and are classified as connectors in the industry. Terminal blocks are widely used in distribution networks, such as transformers, circuit breakers, disconnectors and other electrical equipment for connecting incoming and outgoing lines. Copper-aluminum terminal blocks are usually used. Copper-aluminum terminal blocks generally include a flat front connection part and a cylindrical rear connection part. The front connection part is provided with a screw hole, and the rear connection part is provided with a wire hole for the conductor of the cable to pass through. After the conductor of the cable passes through the wire hole, the rear connection part is crimped to achieve connection with the cable. This fixing method is easy to loosen and fall off after long-term use, resulting in poor contact and poor installation stability. The product has safety hazards, so it needs to be improved. Utility Model Content

[0003] In order to solve the above problems, the technical problem to be solved by the utility model is to provide a copper-aluminum connecting terminal with an anti-dropping function.

[0004] The technical solution adopted by the utility model of the copper-aluminum terminal with anti-slip function is as follows: it is characterized in that it includes a terminal body, a cable clamping block and a cable tightening piece, the terminal body includes a terminal flat portion and a terminal cylindrical portion, the terminal cylindrical portion includes a terminal transition portion, a terminal tightening portion and a terminal docking portion which are arranged in sequence, the terminal cylindrical portion is provided with a cable insertion opening for inserting the cable, the cable clamping block is placed in the terminal tightening portion, the terminal tightening portion is provided with a tightening portion threaded hole, the cable clamping block includes a clamping block arc portion, the inner side of the clamping block arc portion is provided with a clamping block wire clamping groove which is arranged parallel to the cable passing direction around the arc interval, the cable tightening piece includes a tightening piece spherical surface which fits the clamping block arc portion, a tightening piece fixing portion which is threadedly connected to the tightening piece threaded hole and a tightening head, the inner wall of the terminal docking portion is provided with a clamping tooth group for cable compression around the arc interval, and the terminal docking portion is crimped with the cable.

[0005] The pressing tooth group comprises large pressing teeth and small pressing teeth which are arranged at intervals, and the cross sections of the large pressing teeth and the small pressing teeth are both triangular.

[0006] The tooth height of the large pressing teeth is 1 mm, and the tooth height of the small pressing teeth is 0.6 mm.

[0007] The cable clamping block comprises a clamping block positioning portion arranged below the arc portion of the clamping block, and the inner wall of the terminal tightening portion is provided with a tightening portion limiting groove for limiting the clamping block positioning portion.

[0008] The cross section of the clamping block positioning portion is square.

[0009] The cross section of the clamping block wire groove is trapezoidal.

[0010] The tightening head is a regular hexagonal structure.

[0011] The copper-aluminum terminal block with an anti-dropping function has the advantages that the wire core in the cable can be tightened by the cooperation of the cable clamping block and the cable tightening piece, and the compression tooth group can pierce the insulation skin of the cable after crimping, so that the cable is not easy to loosen and fall off, and the double tightening makes the cable and the terminal body in good and tight contact, the connection is firm and reliable, and the safety is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0013] Figure 1 This is an exploded view of the copper-aluminum terminal block with anti-dropping function of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the utility model wiring terminal body;

[0015] Figure 3 It is a structural schematic diagram of the cable clamping block of the utility model;

[0016] Figure 4 It is a structural schematic diagram of the cable tightening member of the utility model;

[0017] Figure 5 It is a cross-sectional view of the copper-aluminum terminal block with anti-dropping function of the utility model;

[0018] Figure 6 yes Figure 5 Magnified image of . DETAILED DESCRIPTION

[0019] like Figure 1-6As shown, the copper-aluminum terminal block with anti-slip function involved in the utility model comprises a terminal body 1, a cable clamping block 2 and a cable tightening member 3, the terminal body 1 comprises a terminal flat portion 5 and a terminal cylindrical portion 6, the terminal cylindrical portion 6 comprises a terminal transition portion 7, a terminal tightening portion 8 and a terminal docking portion 9 which are arranged in sequence, a cable insertion port 10 for inserting a cable is arranged in the terminal cylindrical portion 6, the cable clamping block 2 is placed in the terminal tightening portion 8, a tightening portion threaded hole 12 is arranged on the terminal tightening portion 8, the cable clamping block 2 comprises a clamping block circular arc portion 14, and clamping blocks arranged parallel to the cable insertion direction are arranged around the circular arc at intervals on the inner side of the clamping block circular arc portion 14 The wire clamping groove 16, the cable tightening piece 3 includes a tightening piece spherical surface 18 that fits with the clamping block arc portion 14, a tightening piece fixing portion 19 that is threadedly connected to the tightening part threaded hole 12, and a tightening head 20. The inner wall of the terminal docking portion 9 is provided with a clamping tooth group 21 for cable compression at intervals around the arc. The terminal docking portion 9 is crimped with the cable, and the terminal tightening portion 8 can tighten the wire core in the cable through the cooperation of the cable clamping block 2 and the cable tightening piece 3. The clamping tooth group 21 of the terminal docking portion 9 can pierce the insulation skin of the cable after crimping, so that the cable is not easy to loosen and fall off. The double tightening makes the cable and the terminal body in good and tight contact, the connection is firm and reliable, and the safety is high.

[0020] The pressing tooth group 21 includes large pressing teeth 22 and small pressing teeth 23 which are arranged at intervals. The cross-sections of the large pressing teeth 22 and the small pressing teeth 23 are both triangular. The cooperation of the large and small teeth has a good piercing effect on the insulation of the cable and a greater pressing force.

[0021] The tooth height of the large pressing teeth 22 is 1 mm, and the tooth height of the small pressing teeth 23 is 0.6 mm. This range effectively strengthens the gripping force without damaging the wire.

[0022] The cable clamping block 2 includes a clamping block positioning portion 15 arranged below the clamping block arc portion 14, and the inner wall of the terminal tightening portion 8 is provided with a tightening portion limiting groove 25 for limiting the clamping block positioning portion 15. The cable clamping block 2 is accurately installed and positioned, and its operation is stable and reliable.

[0023] The cross section of the clamping block positioning portion 15 is square, which is easier to process and less likely to shake than other shapes.

[0024] The cross section of the clamping block wire clamping groove 16 is trapezoidal.

[0025] The tightening head 20 is a regular hexagonal structure, which is convenient for personnel to perform tightening operations.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. A copper-aluminum terminal block with anti-drop function, characterized in that: The invention comprises a wiring terminal body (1), a cable clamping block (2) and a cable tightening member (3), wherein the wiring terminal body (1) comprises a terminal flat portion (5) and a terminal cylindrical portion (6), wherein the terminal cylindrical portion (6) comprises a terminal transition portion (7), a terminal tightening portion (8) and a terminal docking portion (9) which are arranged in sequence, wherein a cable insertion opening (10) for inserting a cable is provided in the terminal cylindrical portion (6), wherein the cable clamping block (2) is arranged in the terminal tightening portion (8), wherein the terminal tightening portion (8) is provided with a tightening portion threaded hole (12), and wherein the cable clamping member (3) is provided with a cable tightening member. The block (2) comprises a clamping block arc portion (14), the inner side of the clamping block arc portion (14) is provided with a clamping block wire groove (16) arranged parallel to the cable insertion direction around the arc interval, the cable tightening member (3) comprises a tightening member spherical surface (18) fitted with the clamping block arc portion (14), a tightening member fixing portion (19) threadedly connected to the tightening member threaded hole (12), and a tightening head (20), the inner wall of the terminal docking portion (9) is provided with a tightening tooth group (21) for cable compression around the arc interval, and the terminal docking portion (9) is crimped with the cable.

2. The copper-aluminum terminal block with anti-drop function according to claim 1, characterized in that: The pressing tooth group (21) comprises large pressing teeth (22) and small pressing teeth (23) which are arranged at intervals, and the cross-sections of the large pressing teeth (22) and the small pressing teeth (23) are both triangular.

3. The copper-aluminum terminal block with anti-drop function according to claim 2 is characterized in that: The tooth height of the large pressing teeth (22) is 1 mm, and the tooth height of the small pressing teeth (23) is 0.6 mm.

4. The copper-aluminum terminal block with anti-drop function according to claim 1, characterized in that: The cable clamping block (2) comprises a clamping block positioning portion (15) provided below the clamping block arc portion (14), and the inner wall of the terminal tightening portion (8) is provided with a tightening portion limiting groove (25) for limiting the clamping block positioning portion (15).

5. The copper-aluminum terminal block with anti-drop function according to claim 4 is characterized in that: The clamping block positioning portion (15) has a square cross section.

6. The copper-aluminum terminal block with anti-drop function according to claim 1, characterized in that: The cross section of the clamping block wire clamping groove (16) is trapezoidal.

7. The copper-aluminum terminal block with anti-drop function according to claim 1, characterized in that: The tightening head (20) is a regular hexagonal structure.

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