CN201017801Y - Open type load switch - Google Patents
Open type load switch Download PDFInfo
- Publication number
- CN201017801Y CN201017801Y CNU2007200785888U CN200720078588U CN201017801Y CN 201017801 Y CN201017801 Y CN 201017801Y CN U2007200785888 U CNU2007200785888 U CN U2007200785888U CN 200720078588 U CN200720078588 U CN 200720078588U CN 201017801 Y CN201017801 Y CN 201017801Y
- Authority
- CN
- China
- Prior art keywords
- protective cover
- type load
- load switch
- plug
- strip
- 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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- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The utility model relates to an opening type load switch. Compared with the traditional opening type load switch, the protective cover is divided into two upper and lower blocks, the molten body connecting seat (6) is completely shielded by the lower end protective cover (14), the top part (8) of the upper end protective cover (15) is processed into an arc shape, the arc shape is coincident with the motion trance of the lower edge of the blade handle (3), the area is shielded during the opening and closing process before the switch blade is broken form the clipping seat, simultaneously the installation of the lower end protective cover (14) adopts a buckling structure, the operation of the opening type load switch adopting the technical proposal is convenient, and the utility model overcomes the defaults that part blade is exposed to the outside when the existing opening type load switch is in the closing state, and whether the switch blade is completely broken from the clipping seat is difficult to judge during the installation or when the safety fuse is exchanged.
Description
Technical field
The utility model relates to the low-voltage electrical apparatus switch, especially a kind of open-type load switch.
Background technology
Open-type load switch is commonly called as and is knife switch, is the most frequently used device for switching of people, protects device security by the fusing fuse when line short or apparatus overload.Generally by base, be located at the holder on base top and be contained in lambda line junction block above the base plate of holder, the plug-in strip of tape insulation handle of a knife, be located at the base middle part plug-in strip bearing of one end of plug-in strip is installed, be contained in and connect the melt seat above the base plate of plug-in strip bearing, be contained in being provided with of base bottom and connect the outlet junction block of melt seat, and the protective cover that hides on switch is formed.But this knife switch also has the part blade exposed outside when being in "on" position; When installing or change fuse, it is not obvious whether plug-in strip breaks away from holder fully, especially under the operational circumstances of feeling about in the dark, is difficult to judge whether exposed plug-in strip is charged, and the accident of the charged plug-in strip of touching takes place easily, and the box-packed shortcoming of getting inconvenience of ubiquity protection.
The utility model content
The utility model has overcome the deficiencies in the prior art, provides a kind of safe in utilization, simple in structure, easy to process, and the protective cover peace is got conveniently, the open-type load switch of difficult drop-off.
For realizing above-mentioned technical goal, the utility model adopts following technical scheme: open-type load switch, plug-in strip, plug-in strip bearing, melt joint chair, outlet junction block, protective cover by base, holder, lambda line junction block, tape insulation handle of a knife are formed, protective cover is divided into two up and down, the melt joint chair is hidden by the lower end protective cover fully, arc is processed at the top of upper end protective cover, the movement locus of this arc and handle of a knife lower edge is harmonious, and covers in the moving process plug-in strip and breaks away from inswept zone before the holder fully.
Further technical scheme is: the edge, base lower end of above-mentioned open-type load switch is provided with spring carrier arm, protective cover bottom, top is provided with draw-in groove, there is the block tongue suitable mutually with protective cover bottom, top draw-in groove on protective cover top, bottom, and protective cover bottom, bottom is provided with the shackle suitable mutually with spring carrier arm.
Compared with prior art the utility model can prevent effectively that charged plug-in strip from exposing outside protection box, and is simple in structure, easy to process, when changing fuse, can easily pacify and get protective cover.
Description of drawings
Fig. 1 is a side of the present utility model sectional structure chart;
Fig. 2 is a schematic top plan view of the present utility model;
Fig. 3 is a protective cover A-A face structural representation;
Fig. 4 is a protective cover B-B face structural representation.
Embodiment
Below in conjunction with accompanying drawing the utility model is further elaborated.
As Fig. 1, shown in Figure 2, lambda line junction block 1 is sleeved on the base plate of holder 2, the plug-in strip 4 of tape insulation handle of a knife 3 is movably connected on the plug-in strip bearing 5, fuse one end is connected and connects melt seat 6 on plug-in strip bearing 5 base plates, the other end is connected and is arranged on the outlet junction block 7 another and connects melt seat 6, the top portion 8 of top protective cover 15 is and the corresponding to arc of the movement locus of handle of a knife 3, the bottom has draw-in groove 10, by being bolted on the base 9, cover and only covered lambda line junction block 1, holder 2, plug-in strip 4, plug-in strip bearing 5, edge, base lower end is equipped with spring carrier arm 11, is processed with link 12 with the bottom, the bottom protective cover 14 that the top is processed with block tongue 13 is used.When needing to change fuse, because melt joint chair 6 is fully by protective cover covering down, and protective cover 14 cooperates block tongue 13 to realize fixing by spring carrier arm 11 down, so it is very convenient, and the design of the radian of loam cake 15, having touched plug-in strip 4 because of carelessness even guaranteed operating personnel, also is to have broken away from holder 2 fully, safer.If 8 of the top arcs of upper end protective cover are extended to the extreme position that plug-in strip 4 breaks away from holder 2 fully, can more save material.
Claims (3)
1. open-type load switch, plug-in strip (4), plug-in strip bearing (5), melt joint chair (6), outlet junction block (7), protective cover by base (9), holder (2), lambda line junction block (1), tape insulation handle of a knife (3) are formed, it is characterized in that: protective cover is divided into two up and down, melt joint chair (6) is hidden by lower end protective cover (14) fully, arc is processed at the top (8) of upper end protective cover (15), the movement locus of this arc and handle of a knife (3) lower edge is harmonious, and covers plug-in strip in the moving process (4) and breaks away from the preceding inswept zone of holder (2) fully.
2. open-type load switch according to claim 1, it is characterized in that base (9) edge, lower end is provided with spring carrier arm (11), top protective cover (15) bottom is provided with draw-in groove (10), there is the block tongue (13) suitable mutually with top protective cover (15) bottom draw-in groove (14) on bottom protective cover (14) top, and bottom protective cover (14) bottom is provided with the shackle (12) suitable mutually with spring carrier arm (11).
3. open-type load switch as claimed in claim 1 or 2 is characterized in that the top arc (8) of upper end protective cover only is extended to the extreme position that plug-in strip (4) breaks away from holder (2) fully.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200785888U CN201017801Y (en) | 2007-02-15 | 2007-02-15 | Open type load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200785888U CN201017801Y (en) | 2007-02-15 | 2007-02-15 | Open type load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201017801Y true CN201017801Y (en) | 2008-02-06 |
Family
ID=39058300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200785888U Expired - Fee Related CN201017801Y (en) | 2007-02-15 | 2007-02-15 | Open type load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201017801Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107689306A (en) * | 2016-08-05 | 2018-02-13 | 天津中电华利电器科技集团有限公司 | A kind of knife-like switch |
-
2007
- 2007-02-15 CN CNU2007200785888U patent/CN201017801Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107689306A (en) * | 2016-08-05 | 2018-02-13 | 天津中电华利电器科技集团有限公司 | A kind of knife-like switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080206 Termination date: 20150215 |
|
| EXPY | Termination of patent right or utility model |