Puller type quick connector for emergency power van

Abstract

The invention discloses a puller type quick connector for an emergency power van, and belongs to the field of emergency power devices. The puller type quick connector consists of a pedestal, four puller hooks and a puller screw component. A first screw through hole is formed in the center of the pedestal. Four sliding way type through holes are formed around the pedestal along the radial direction of the first screw through hole. Each puller hook consists of a hook body, a positioning guide threaded rod at the tail end of the hook body and a second fastening nut positioned on the threaded rod. The four puller hooks are movably arranged in the four sliding way type through holes respectively. The puller screw component consists of a puller threaded rod and a first fastening nut arranged on the puller threaded rod, and penetrates through the first screw through hole to form the outgoing cable connecting end of the emergency power van. An outgoing cable of the emergency power van and a low-voltage bus-bar of a user are reliably and fixedly connected into a whole to realize quick and reliable connection between the outgoing cable of the emergency power van and the low-voltage bus-bar of the user. The puller type quick connector can be widely used for the fields of emergency power supply and power supply management.

Description

technical field [0001] The invention belongs to the field of circuit devices for emergency power supplies, in particular to a quick power connector for emergency power supply vehicles. Background technique [0002] With the further acceleration of urbanization and rural urbanization in my country, the scale of cities is constantly expanding, the demand for urban power supply is constantly increasing, and the requirements for the reliability of power supply are also constantly increasing. In order to ensure the normal electricity consumption of residents, enterprises and other users, the power supply department has extensively researched and introduced advanced electrical equipment and technologies. One of the important measures is to configure emergency power supply vehicles for special users (such as hospitals, banks, securities, confidential departments, firefighting, emergency rescue and other first-level electricity customers), and to supply power when the power distribu...

AI Technical Summary

Problems solved by technology

[0007] If the fastening bolts and nuts on the low-voltage busbars are corroded, or the electrician of the user does not bring special disassembly tools (the low-voltage busbars usually use M10 or larger installation and fixing screws, and sleeves or studs matching the specifications are required wrench, and electricians usually only carry tools such as screwdrivers that can only remove small-sized screws such as M3 and M5), it takes a long time to remove the fixing screws of the low-voltage busbar, which will greatly delay the time to restore power supply

[0008] (2) The outlet cable connector of the emergency power supply vehicle does not match the user's low-voltage busbar connector, which affects the connection speed between the two:

[0009] If the user's low-voltage busbar connector uses small-diameter bolts and the connector of the emergency power supply vehicle's outlet cable has a larger diameter, the contact resistance will be larger when the two are connected. This is the weak point of the power supply line, and the heat will be serious; if the user The low-voltage busbar connector uses large-diameter bolts, while the connector diameter of the emergency power supply vehicle outlet cable is relatively small, so the two will not be connected, resulting in the failure of emergency power supply

[0010] (3) The outgoing cable of the emergency power supply vehicle does not match the low-voltage outgoing wire of the user, which affects the connection speed between the two:

[0011] When the user's substation is a pole-mounted transformer, its low-voltage output wire is usually in the form of an overhead wire, because the overhead wire is usually an aluminum core wire, and the output cable of an emergency power supply vehicle is usually a copper core wire, and the copper cable is directly wound on the overhead wire It cannot be guaranteed that the connection resistance between the two is within the specified range, and the materials between the two are different. The direct hinged connection is not allowed by the safety regulations. Therefore, for such users, the incoming line switch can only be found along the overhead line. (Sometimes it is necessary to search for a distance of several kilometers or more along its overhead line in the field), remove the wire of the original overhead line at the incoming line end, and drive the emergency power supply vehicle to the position where the incoming line switch is located (sometimes where the incoming line switch is located) The location of the emergency power supply vehicle is not suitable for driving in), and then the outgoing cable of the emergency power supply vehicle is connected, which brings difficulties to the emergency power supply of such users, and sometimes loses the timing of emergency power supply and the significance of using the emergency power supply vehicle

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