Grounding connector used for cable metal tube
A grounding connector and metal tube technology, applied in conductive connection, electrical component connection, multi-conductor connector, etc., can solve the problems of inability to connect metal tubes with concave and convex corrugations, insufficient fixing strength, easy to loosen, etc. Effects of electrical connection requirements
Inactive Publication Date: 2016-10-19
上海市高桥电缆厂有限公司
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Problems solved by technology
[0006] The technical problem to be solved by the present invention is to provide a grounding connector for cable metal pipes in order to overcome the defects that the traditional aluminum pipe grounding connectors in the prior art cannot be connected to metal pipes with concavo-convex corrugations, the fixing strength is not enough, and it is easy to loosen. Connector
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[0044] The present invention will be more clearly and completely described below by means of embodiments and in conjunction with the accompanying drawings.
[0045] In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or positional relationship. Elements must have certain orientations, be constructed and operate in certain orientations, and therefore should not be construed as limitations on the invention.
[0046] Please according to Figure 2-3It should be understood that a grounding connector for a cable metal pipe 3 includes an upper cover 1 and a lo...
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The invention discloses a grounding connector used for a cable metal tube. The grounding connector comprises an upper cover and a lower cover which is connected to the upper cover in a detachable manner; the bottom of the upper cover is provided with an upper clamping portion; the top portion of the lower cover is provided with a lower clamping portion which is arranged in opposition to the upper clamping portion; a containing chamber is formed between the upper clamping portion and the lower clamping portion; the metal tube is clamped in the containing chamber and is attached to the upper clamping portion and the lower clamping portion; and the a terminal is detachably connected to the top of the upper clamping portion. The grounding connector used for the cable metal tube is applied to the metal tube with an accidented corrugation on the surface, guarantees contact reliability and requirements for the contact surface, and can be reliably connected to the metal tubes with identical external diameters and various corrugation depths; meanwhile, a pre-buried bolt casted on the upper cover of the grounding connector uses a bolt, a spring gasket and a flat gasket to fix the terminal, the fixation strength and the contact surface satisfy electric connection recruitments and the grounding connector is easy to install and not easy to loose or damage an internal cable .
Description
technical field [0001] The invention relates to the field of low-voltage cables, in particular to a grounding connector for metal pipes of cables. Background technique [0002] In the prior art, the grounding of domestic low-voltage cables generally uses copper terminals or copper-aluminum terminals to crimp the ground core, and the metal tube of the cable also adopts the above method. The metal tube (or metal tube with concave and convex corrugations) of the new mineral insulated cable can be used as the ground core. When using the traditional welding technology, a welding machine is used to weld the metal pipe and the ground wire core through the medium. However, this connection method has the following defects: (1) The operation on the construction site is cumbersome, the efficiency is slow, the safety is poor, and it is easy to damage the electric wire. (2) The contact surface between the metal tube and the ground wire core is small, resulting in poor reliability of the...
Claims
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IPC IPC(8): H01R11/01H01R11/05
Inventor 张龙田徐春斌王建忠
Owner 上海市高桥电缆厂有限公司