CN201820684U - Closing switch - Google Patents
Closing switch Download PDFInfo
- Publication number
- CN201820684U CN201820684U CN2010205256083U CN201020525608U CN201820684U CN 201820684 U CN201820684 U CN 201820684U CN 2010205256083 U CN2010205256083 U CN 2010205256083U CN 201020525608 U CN201020525608 U CN 201020525608U CN 201820684 U CN201820684 U CN 201820684U
- Authority
- CN
- China
- Prior art keywords
- knife
- switch
- plug
- strip
- wiring terminals
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a closing switch which comprises an insulating base provided with output wiring terminals on a left side and a right side. The closing switch is characterized in that input wiring terminals A and B are arranged in the middle of the front side of the insulating base; an input wiring terminal C is arranged in the middle of the rear side of the insulating base; the input wiring terminals A, B and C are respectively connected with a knife switch articulated in the middle of a base body by zigzag connecting pieces with different lengths; three knife rests connected with the output wiring terminals on the left side and the right side are correspondingly arranged on two sides of the base body respectively; and a lip opening matched with the knife switch favorably is arranged on one side of each knife rest facing to the knife switch. The closing switch has the advantages of being simple in structure, fewer in components, fewer in consumed materials, fewer in manufacturing and mounting procedures, convenient for manufacturing and mounting, low in cost, difficulty for heat generation, more stability and safety during working, and extremely high in use value.
Description
Technical field
The utility model relates to the contactor technical field, especially a kind of knife switch.
Background technology
Knife switch claims knife switch or isolating switch again, and it is the simplest and use more a kind of low-voltage electrical apparatus in the manual electrical equipment, and it is made up of porcelain seat, blade, tool rest and Bakelite Cover etc.Usually be used as the switch of insulating power supply, so that can overhaul or change fuse safely to electric equipment.The mains switch that also can be used as line-start motor.When selecting for use, the rated current of knife switch is approximately greater than three times of motor rated current.According to the blade number what, ask that knife switch divides one pole (hilted broadsword), bipolar (double-pole), three utmost points (three cuttves).
The tradition knife switch generally includes ceramic wafer (seat); handle; contact knife; the contact knife support; the inlet wire connector assembly; outlet connector assembly and protective cover; the inlet wire connector assembly; the outlet wiring group is separately fixed at the two ends of ceramic wafer; the contact knife support is fixed on the ceramic wafer middle part; contact knife is hinged on the contact knife frame for one section; the contact knife frame bottom is fixed on the ceramic wafer middle part; contact knife one end is hinged on the contact knife support; the contact knife frame bottom is by the screw lug plate; the outlet connector assembly comprises on lug plate and the lug plate; the cross section is the lead fastening frame that the degree of lip-rounding is provided with housing pin; the inlet wire connector assembly comprises the lead fastening frame; the contact that brace and cross section are triangular in shape substantially and the top clamps; this knife switch complex structure; the manufacturing cost height; plug-in strip is whole heavy, and frangible, and heating is big; initiating failure influences and produces easily.
Summary of the invention
The purpose of this utility model is to provide a kind of knife switch, and this knife switch is simple in structure, parts are few, consumptive material is few, manufacturing and installation procedure are few, with low cost, make easy for installationly, in light weight, be difficult for heating, stability and safety more during work has high use value.
The technical solution of the utility model is: a kind of knife switch, comprise that left and right sides is provided with the outlet terminal insulator foot, it is characterized in that: middle part, described insulator foot front side is provided with A, the B input terminal, described insulator foot rear side middle part is provided with the C input terminal, described A, B and C input terminal turn the shape brace and are articulated in the supermedial plug-in strip of pedestal and are connected through what length differed respectively, described pedestal two sides correspondence respectively are provided with three knife rests that are connected with the left and right sides outlet terminal, and described knife rest is provided with the lip that cooperates in order to plug-in strip towards plug-in strip one side.
The above pedestal upside is provided with protective cover, offers the conduit in order to plug-in strip left and right sides reciprocally swinging on the described protective cover.
Advantage of the present utility model is: knife switch is simple in structure, parts are few, consumptive material is few, manufacturing and installation procedure are few, makes easy for installationly, in light weight, with low cost, is difficult for heating, and stability and safety more during work has high use value.
Description of drawings
Fig. 1 is the plan structure schematic diagram of removal protective cover of the present utility model.
Fig. 2 is a left TV structure schematic diagram of the present utility model.
In the accompanying drawing: 1 is outlet terminal; 2 is insulator foot; 3 for turning the shape brace; 4 is plug-in strip; 5 is knife rest; 6 is lip; 7 is protective cover; 8 is conduit.
Embodiment
Below in conjunction with embodiment, further set forth the invention.
With reference to the accompanying drawings, the utility model is a kind of knife switch, comprise that left and right sides is provided with outlet terminal 1 insulator foot 2, it is characterized in that: middle part, described insulator foot 2 front sides is provided with A, the B input terminal, described insulator foot 2 rear sides middle part is provided with the C input terminal, described A, B and C input terminal turn shape brace 3 and are articulated in pedestal 2 supermedial plug-in strips 4 and are connected through what length differed respectively, 2 liang of sides of described pedestal correspondence respectively are provided with three knife rests 5 that are connected with the left and right sides outlet terminal, and described knife rest 5 is provided with the lip 6 that cooperates in order to plug-in strip 4 towards plug-in strip 4 one sides.
The above pedestal 2 upside is provided with protective cover 7, offers the conduit 8 in order to plug-in strip left and right sides reciprocally swinging on the described protective cover 7.
The utility model does not limit to above-mentioned preferred forms, and anyone can draw other various forms of engineening goods under enlightenment of the present utility model.All equalizations of being done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (2)
1. knife switch, comprise that left and right sides is provided with the outlet terminal insulator foot, it is characterized in that: middle part, described insulator foot front side is provided with A, B input terminal, described insulator foot rear side middle part is provided with the C input terminal, described A, B and C input terminal turn the shape brace and are articulated in the supermedial plug-in strip of pedestal and are connected through what length differed respectively, described pedestal two sides correspondence respectively are provided with three knife rests that are connected with the left and right sides outlet terminal, and described knife rest is provided with the lip that cooperates in order to plug-in strip towards plug-in strip one side.
2. according to the described knife switch of claim 1, it is characterized in that: described pedestal upside is provided with protective cover, offers the conduit in order to plug-in strip left and right sides reciprocally swinging on the described protective cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205256083U CN201820684U (en) | 2010-09-13 | 2010-09-13 | Closing switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205256083U CN201820684U (en) | 2010-09-13 | 2010-09-13 | Closing switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201820684U true CN201820684U (en) | 2011-05-04 |
Family
ID=43918630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205256083U Expired - Fee Related CN201820684U (en) | 2010-09-13 | 2010-09-13 | Closing switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201820684U (en) |
-
2010
- 2010-09-13 CN CN2010205256083U patent/CN201820684U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20130913 |