Portable single-phase air bypass switch for live power distribution network

Patent metadata

Field	Value
Publication number	US-9576758-B2
Application number	US-201414786140-A
Country	US
Kind code	B2
Filing date	Apr 21, 2014
Priority date	Apr 22, 2013
Publication date	Feb 21, 2017
Grant date	Feb 21, 2017

Abstract

The present invention provides a portable single-phase air bypass switch for live power distribution network, including a housing member, a positioning member, a conductive circuit member, a clutch member, a switch-closing member and a switch-opening member. The positioning member includes a positioning nut, positioning frames, and a positioning column. The conductive circuit member includes a conductive end cover, an upper conductive rod, a pressing sleeve, a coupling nut, a conductive sleeve pipe, a stationary contact, a movable contact, and a lower conductive rod. The switch-closing member includes a switch-closing energy-storage rod, a switch-closing energy-storage ring, a switch-closing spring, a switch-closing positioning pin, a switch-closing release ring, and an inner sleeve pipe. The switch-opening member includes a small shaft, a switch-opening spring, a stopping block, a switch-opening energy-storage shaft, a connection rod, a switch-opening energy-storage pressing head, a switch-opening positioning pin, and a switch-opening release ring.

First claim

What is claimed is:

1. A portable single-phase air bypass switch for a live power distribution network, comprising: a housing member, a positioning member, a conductive circuit member, a clutch member, a switch-closing member and a switch-opening member, wherein:
the housing member includes a main sleeve tube, an insulating sleeve pipe, a flange sleeve, and a bottom cover; the positioning member includes a positioning nut, positioning frames, and a positioning column; the conductive circuit member includes a conductive end cover, an upper conductive rod, a pressing sleeve, a coupling nut, a conductive sleeve pipe, a stationary contact, a movable contact, and a lower conductive rod; the clutch member includes a clutch, a clutch ring, and a clutch sleeve pipe; the switch-closing member includes a switch-closing energy-storage rod, a switch-closing energy-storage ring, a switch-closing spring, a switch-closing positioning pin, a switch-closing release ring, and an inner sleeve pipe; the switch-opening member include a small shaft, a switch-opening spring, a stopping block, a switch-opening energy-storage shaft, a connection rod, a switch-opening energy-storage pressing head, a switch-opening positioning pin, and a switch-opening release ring;
the insulating sleeve pipe and an outer periphery of an upper part of the main sleeve tube are connected with an interference fit; the conductive sleeve pipe and an inner periphery of the upper part of the main sleeve tube are connected with an interference fit; the coupling nut is a nut with both internal screw threads and external screw threads; the coupling nut has threaded connection with a lower end of the upper conductive rod by the internal screw thread; the coupling nut has threaded connection with an inner wall of an upper part of the conductive sleeve pipe by the external screw thread; the positioning nut has threaded connection with the upper conductive rod and is located above the coupling nut; the pressing sleeve has threaded connection with the upper conductive rod and is located above the positioning nut; the flange sleeve covers the pressing sleeve from top to bottom and has threaded connection with an outer wall of an upper end of the insulating sleeve pipe; the upper conductive rod is fixedly connected with the conductive end cover;
the positioning column is coupled and connected to a lower part inside the main sleeve tube, the bottom cover is coupled and connected to a lower end of the main sleeve tube, and is fixedly connected with the positioning column; a left side and a right side of a vertically waist portion of the positioning column are each provided with a switch-closing positioning pin-hole and a switch-opening positioning pin-hole; the main sleeve tube is configured to have a switch-closing positioning pin through-hole and a switch-opening positioning pin through-hole at corresponding locations of the switch-closing positioning pin-hole and the switch-opening positioning pin-hole in the positioning column; the switch-closing positioning pin and the switch-opening positioning pin respectively pass through the switch-closing positioning pin through-hole and the switch-opening positioning pin through-hole in the main sleeve tube, and is movably located in the switch-closing positioning pin-hole and the switch-opening positioning pin-hole in the positioning column; the switch-closing release ring is elastically connected with the switch-closing positioning pin by torsion spring; the switch-opening release ring is elastically connected with the switch-opening positioning pin by torsion spring; a quantity of the positioning frames is two, the two positioning frames are respectively configured at a left side and a right side of the main sleeve tube and are fixedly connected with the main sleeve tube; the stationary contact has threaded connection with an inner wall of a lower end of the conductive sleeve pipe; the movable contact is located underneath the stationary contact; the clutch member is configured inside the conductive sleeve pipe and is located underneath the upper conductive rod; the switch-closing spring is configured inside the conductive sleeve pipe; the switch-closing spring is located in between the clutch member and the stationary contact;
the bottom cover, the positioning column, the movable contact and the stationary contact are configured to have vertical through-holes at lateral sides in left-right direction and in a center; the switch-closing energy-storage rod passes through, sequentially from bottom to top, the through-holes at the lateral sides of the bottom cover, the positioning column, the movable contact and the stationary contact, and an upper end of the switch-closing energy-storage rod is fixedly connected with the clutch; the switch-closing energy-storage ring is fixedly mounted at a lower end of the switch-closing energy-storage rod; an upper end of the inner sleeve pipe has threaded connection with the clutch sleeve pipe; a lower end of the inner sleeve pipe has threaded connection with the movable contact;
an upper part of the small shaft is coupled and connected inside the upper conductive rod, middle and lower parts of the small shaft has movable fit and connects with an inner chamber of the clutch and inside an upper part of the inner sleeve pipe; the switch-opening spring is configured inside the inner sleeve pipe, and an upper end of the switch-opening spring contacts a lower end of the small shaft; a lower end of the switch-opening spring contacts an upper end surface of the stopping block; a lower end of the stopping block passes through a through-hole in a center of the movable contact and has threaded connection with an upper end of the switch-opening energy-storage shaft; a lower end of the switch-opening energy-storage shaft has threaded connection with an upper end of the connection rod; the connection rod has movable fit and connects to the through-hole in the center of the positioning column, a lower end of the connection rod has threaded connection with the switch-opening energy-storage pressing head; and
a front lateral side of a lower part of the main sleeve tube is configured to have a through-hole for passing through conductive cords; the lower conductive rod is a hollow round tube; a first end of the lower conductive rod is fixedly connected with the main sleeve tube at where the through-hole for passing through conductive cords is located.

2. The switch according to claim 1 , wherein: the main sleeve tube of the housing member is a whole piece hollow cylinder made of transparent insulating polycarbonate; the insulating sleeve pipe is a whole piece hollow cylinder made of insulated polycarbonate, an inner diameter of the insulating sleeve pipe is compatible with an outer diameter of the main sleeve tube; the outer wall of the upper end of the insulating sleeve pipe is configured to have external screw threads; the flange sleeve is a whole piece made of nylon; the flange sleeve includes an upper plate, a main-body portion, and a ring portion; the upper plate of the flange sleeve is a round-shaped plate, a center of the flange sleeve is configured to have a vertical through-hole; the main-body portion of the flange sleeve is configured to have a hollow cylindrical shape, and have internal screw threads in the inner wall for assembling connection; the ring portion of the flange sleeve is configured to have a ring shape and extend from a lower end of the main-body portion; the bottom cover is a whole piece made of aluminum alloy, the bottom cover includes a round-shaped bottom plate and a ring portion; the ring portion of the bottom cover is configured on top of the bottom plate, and an outer diameter of the ring portion is the same as a diameter of the bottom plate.

3. The switch according to claim 2 , wherein: the positioning nut of the positioning member is a round-shap

Assignees

• Chang Zhou Current Supply Company Of Jiangsu Electric Power Company
• Jiangsu Electric Power Co
• State Grid Corp China

Inventors

• He Jianjun
• Xu Zhen
• Zhu Hui

Classifications

• H01H2205/002

  fixed to operating part · CPC title

• H01H3/3042 Primary

  using a torsion spring · CPC title

• H01H31/006

  adapted to be operated by a hot stick; Hot sticks therefor · CPC title

• H01H33/73 Primary

  wherein the break is in air at atmospheric pressure, e.g. in open air · CPC title

• H01H2235/01

  Spiral spring · CPC title