CN2446698Y

CN2446698Y - Cross bus connecting assembly of switch appts.

Info

Publication number: CN2446698Y
Application number: CN 00245585
Authority: CN
Inventors: 常建勋; 黄林
Original assignee: BEIJING NOL2 SWITCH FACTORY
Priority date: 2000-08-24
Filing date: 2000-08-24
Publication date: 2001-09-05
Anticipated expiration: 2010-08-24

Abstract

The utility model relates to a cross bus connecting assembly of a switch apparatus, which is used for power switch apparatuses, especially for the interconnection when double rows of horizontal buses and double rows of vertical buses of a low-voltage switch apparatus are intersected. The utility model is formed by that a bolt (1) orderly penetrates through a nut (2), a front washer (3), a front baffle plate (4), a spacer block (5), a back baffle plate (6), etc., wherein, the front and the back baffle plates are provided with two flanged edges which can be closely contacted with the lateral faces of the buses. The utility model has the advantages that the levelling and the straightening of the buses are prompted, contact area with the buses is large, contact is good and reliable, assembly is convenient, etc.

Description

Switchgear intersection bus coupling assembling

The utility model belongs to mechanical fastener, is used for interconnecting of power switchgear intersection bus, is specially adapted to double level of low voltage switchgear and interconnecting that double vertical bus intersects.

The connection of double level and double vertical bus can be taked different connected modes according to the mutual alignment of bus is different in the power switchgears such as low tension switch.When the horizontal bus and the vertical mutual alignment of bus do not form when intersecting, can pick out a single bus and make it to intersect from vertical bus with horizontal bus, on single bus, punch then, again coupling assemblings connections such as usefulness bolt, nut, retaining metal plate, cushion block.But the used retaining metal plate of present this coupling assembling is planar shaped, and only with a plane contact of bus, bus then is difficult to perceive and produce loose contact when very not straight.When the mutual alignment of double-row horizontal bus and double vertical bus forms when intersecting,, subtle and produce the problem of main loose contact when then still existing bus very not straight if still adopt above-mentioned coupling assembling connection.

The design's purpose is to solve the problems referred to above that existing double intersection bus coupling assembling exists, and a kind of contact coupling assembling good, easy to assembly that double intersection bus connects that is used for is provided.

The switchgear intersection bus coupling assembling that the design provides also is made up of the cushion block between screw bolt passes nut, front metal plate, bus, and different is:

A, be with a backstop metal plate that has two crimps that can be adjacent to contact bus side at bolt head, but the hole of its cover bolt is divided into the circular hole of catch plug head at bolt shank, the part of bolt head be make that bolt can not rotate in the hole with bolt head with the shape hole;

B, described front metal plate are circular, and the both sides band can be adjacent to the crimp that contacts with the bus both sides;

C, described cushion block overlap the cylinder of shank of bolt circular hole for the center band.

For easy to process, described backstop metal plate is preferably the square metal plate that side-looking is a U-shaped, its U-shaped gap should be slightly less than bolt head thickness, one side of U-shaped has two crimps that can be adjacent to contact bus side, and but this side opening is the circular hole of cover shank of bolt and catch plug head, opposite side have can crouch bolt head into and make it in the hole, to rotate with bolt head with the shape hole, and above-mentioned two holes are concentric.

The design's advantage is conspicuous: the forward and backward retaining metal plate of band both sides crimp can only block straight bus, then points out when bus is not straight and should give rectification, and this plane contact that has just guaranteed two retaining metal plates and bus is good; The both sides crimp that keeps off metal plate simultaneously encases the two sides of bus again, has strengthened the contact area with bus.Thereby thoroughly solved the problem that may produce loose contact after bus connects.

Below in conjunction with description of drawings embodiment of the present utility model.

Fig. 1 is the shaft side figure of the utility model " switchgear intersection bus coupling assembling ";

Fig. 2 is the use assembling shaft side figure of the utility model " switchgear intersection bus coupling assembling ".

In Fig. 1,1 is bolt, and 2 is nut, and 3 is preceding packing ring, and 4 is the front metal plate, and 5 is cushion block, and 6 are the backstop metal plate, and 7 is the back packing ring.As seen from the figure, the front metal plate is the disc of both sides band crimp, and cushion block is a hollow circular cylinder, and the side-looking of backstop metal plate is a U-shaped, two crimps of a side band, the hole is a circular hole, the concentric hole of opposite side and above-mentioned circular hole can crouch into bolt head and with the same shape of bolt head.Cushion block is that tubular advantage is: under the situation identical with the bus contact area, and the weight of cylinder bodily form cushion block, volume minimum.

In Fig. 2,8 is double level and vertical bus, all the other the part of annotating identical with the part name of the corresponding numbering of Fig. 1.As seen from the figure, the both sides crimp of front metal plate encases two sides of horizontal bus just, has increased contact area with bus than the retaining metal plate that only is disc; The crimp of backstop metal plate encases two sides of vertical bus just, has also increased the contact area with bus.Simultaneously when bus is not straight then the front-and-back stop metal plate with crimp all can not crouch fully into bus, can install after must be will the bus leveling straight.So just guarantee coupling assembling and be connected fully well contacting of bus.

The utility model has been manufactured experimently out sample and through service test, has been shown that contact is good, easy to assembly, can prevent effectively that the loose contact phenomenon of bus and coupling assembling from producing main.

Claims

1, switchgear intersection bus coupling assembling is made up of the cushion block (5) that bolt (1) passes between nut (2), front metal plate (3), bus successively, it is characterized in that:

A, be with one at bolt (1) head and have the backstop metal plate (6) that can be adjacent to two crimps that the contact bus bar side draws, but the hole of its cover bolt is divided into the circular hole of catch plug head at bolt shank, the part of bolt head be make that bolt can not rotate in the hole with bolt head with the shape hole;

B, described front metal plate (3) are disc, and the both sides band can be adjacent to the crimp that contacts with the bus both sides;

C, described cushion block (4) overlap the cylinder of shank of bolt circular hole for the center band.

2, switchgear intersects the bus coupling assembling according to claim 1, it is characterized by shelves metal plate (6) side-looking of described back is the square metal plate of U-shaped, its U-shaped gap is less than bolt head thickness, one side of U-shaped has two crimps that can be adjacent to contact bus side, and but this side opening is the circular hole of cover shank of bolt and catch plug head, the Kong Weike of opposite side crouch bolt head into and make it in the hole, to rotate with bolt head with the shape hole, and above-mentioned two holes are concentric.