CN200990482Y

CN200990482Y - Direct acting three-station switch

Info

Publication number: CN200990482Y
Application number: CN 200620046483
Authority: CN
Inventors: 张强华; 戚晓宇
Original assignee: XIJIEAISI ELECTRIC CO Ltd SHANGHAI
Current assignee: XIJIEAISI ELECTRIC CO Ltd SHANGHAI
Priority date: 2006-09-29
Filing date: 2006-09-29
Publication date: 2007-12-12
Anticipated expiration: 2016-09-29

Abstract

The utility model relates to a direct action type three station switch for aerating cabinet, which comprises a gate closing contact seat and an earthing contact seat. A bar and a screw rod driven by the bar are arranged in the earthing contact seat. The utility model also comprises a switch made of a dynamic contact assembly and a static contact tube. The utility model is characterized in that two ends of the dynamic contact assembly are provided with spring contactors. The screw rod rotates and brings the dynamic contact assembly into direct motion so as to achieve the working states including switch on, switch off and earthing. The spring contactors are directly arranged at both ends of the dynamic contact assembly instead of in the earthing contact seat, the static contact tube and the gate closing contact seat. Therefore, the utility model has the function of commonly direct action type three station switches. Besides, the utility model reduces application amount of the spring contactor and cost of the product.

Description

A kind of direct action type three-station

Technical field

The utility model relates to a kind of three-station that inflating switch cabinet uses, and concrete is the direct action type three-station that a kind of inflating switch cabinet uses.

Background technology

The three-station of inflating switch cabinet use at present mostly is Direct Action Type, and the more common knife switch of such direct action type three-station can carry bigger electric current.But at present direct action type three-station often touches spring and is installed in ground connection touch base, fixed contact pipe, the combined floodgate touch base in the inflating switch cabinet, and it is excessive that spring touches sub-use amount; And existing spring touches son all price is higher, thereby has increased product cost.

The utility model content

The purpose of this utility model is to provide a kind of direct action type three-station, when realizing traditional direct action type three-station function, reduces the use amount that spring touches son, reduces the cost of product.

In order to achieve the above object, the technical solution of the utility model is such:

A kind of direct action type three-station comprises:

Be installed in the combined floodgate touch base on the plate behind the switch cubicle gas tank by mounting panel, insulator;

Be installed in ground connection touch base on the switch cubicle gas tank header board by ground connection touch base hold-down nut; The screw mandrel that bar is installed in the ground connection touch base and drives by bar;

By the switch that moving contact assembly and fixed contact pipe constitute, feather key on the described moving contact assembly and the gathering sill in the fixed contact pipe are slidingly matched; End at the moving contact assembly is fixed with the screw that meshes with described screw mandrel, and described screw mandrel drives the moving contact assembly by screw and slides in the fixed contact pipe; End at the fixed contact pipe is fixed with busbar, and busbar is connected with the moved end of circuit breaker;

It is characterized in that,

At the two ends of described moving contact assembly spring is installed all and touches son.

Described spring touches son and is installed in the groove that is opened in moving contact assembly two ends.

During use, rotate, can drive the moving contact assembly and on the fixed contact pipe, slide, thereby realize moving to the left or to the right of moving contact assembly when bar drives screw mandrel.In the left end insertion combined floodgate touch base of moving contact assembly, be "on" position; When the two ends of moving contact assembly are positioned at the fixed contact pipe, be gate-dividing state; Right-hand member insertion ground connection touch base when the moving contact assembly is ground state.Combined floodgate all has the spring that is installed on the moving contact two ends to touch son realization conducting with ground state.

Spring of the present utility model touches the two ends that son is directly installed on the moving contact assembly, rather than spring is touched son be installed in ground connection touch base, fixed contact pipe, the combined floodgate touch base, thereby when realizing conventional direct action type three-station function, reduce spring greatly and touched sub use amount, reduced the cost of product.

Description of drawings

Describe the utility model in detail below in conjunction with the drawings and specific embodiments,

Fig. 1 is the structural representation of a kind of direct action type three-station of the utility model;

Fig. 2 is the moving contact assembly profile of a kind of direct action type three-station of the utility model;

Fig. 3 is the B partial enlarged drawing of Fig. 2;

Fig. 4 is the vertical view of the moving contact assembly of a kind of direct action type three-station of the utility model;

Fig. 5 is the outside three-dimensional structure diagram of the moving contact assembly of a kind of direct action type three-station of the utility model;

Fig. 6 is the structural representation of the fixed contact pipe of a kind of direct action type three-station of the utility model;

Fig. 7 is the vertical view of the fixed contact pipe of a kind of direct action type three-station of the utility model.

Embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.

Referring to Fig. 1, a kind of direct action type three-station, ground connection touch base 6 is installed on the switch cubicle gas tank header board by ground connection touch base hold-down nut 4, in ground connection touch base 6 by bearing 2 with prevent that the sealing ring 3 of gas leakage is equipped with a bar 1, one end of screw mandrel 7 insert in the ground connection touch base 6 and with bar 1 socket, bar 1 just can drive screw mandrel 7 rotations like this.

Combined floodgate touch base 13 is installed in behind the switch cubicle gas tank on the plate 16 by insulator 14, mounting panel 15.

The switch that is made of moving contact assembly 12 and fixed contact pipe 11 is installed in the switch cubicle, and an end of busbar 10 is installed in an end of fixed contact pipe 11 by busbar hold-down nut 8, and the other end of busbar 10 is connected with the circuit breaker moved end.

Combined floodgate touch base 13, fixed contact pipe 11, ground connection touch base 6 all on same axis, the dead in line therewith of the axis of screw mandrel 7.

To Fig. 5, described moving contact assembly 12 inside are hollow shape referring to Fig. 2, and the one end is equipped with the screw 18 that meshes with screw mandrel 7 by holding screw 17, screw out to prevent screw 18.By screw 19 feather key 20 is installed on the sidewall of moving contact assembly 12, feather key 20 is a strip.The two ends of the cylindrical of moving contact assembly 12 offer four groove 21 (not shown)s, a spring respectively is installed in these four grooves 21 touches son 22.

Referring to Fig. 6 and Fig. 7, have a gathering sill 23 that connects whole fixed contact pipe 11 on the inner headed face of fixed contact pipe 11, feather key 20 on the moving contact assembly 12 is slidingly matched with this gathering sill 23, and moving contact assembly 12 can be moved in fixed contact pipe 11 stably.

During use, under the drive of bar 1, screw mandrel 7 rotates, and drives moving contact assembly 12 by screw 18 and moves in fixed contact pipe 11, realizes moving to the left or to the right of moving contact assembly 12.When moving contact assembly 12 inserts in the combined floodgate touch base 13, be "on" position; When moving contact assembly 12 is positioned at fixed contact pipe 11, be gate-dividing state; When moving contact assembly 12 inserts ground connection touch base 6, be ground state.Combined floodgate all has the spring that is installed on moving contact assembly 12 two ends to touch son 22 realization conductings with ground state.

Although the foregoing description is described the utility model, for the technical staff of the industry, still can do multiple variation to present embodiment, therefore, every employing similar variation of the present utility model all should be listed protection range of the present utility model in.

Claims

1, a kind of direct action type three-station comprises:

It is characterized in that,

2, direct action type three-station according to claim 1 is characterized in that, described spring touches son and is installed in the groove that is opened in moving contact assembly two ends.