CN203588903U - Safety knife switch - Google Patents
Safety knife switch Download PDFInfo
- Publication number
- CN203588903U CN203588903U CN201320819809.8U CN201320819809U CN203588903U CN 203588903 U CN203588903 U CN 203588903U CN 201320819809 U CN201320819809 U CN 201320819809U CN 203588903 U CN203588903 U CN 203588903U
- Authority
- CN
- China
- Prior art keywords
- safety
- sheath
- knife switch
- interior guard
- guard shield
- 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
A safety knife switch comprises a sheath (1), an outer sheath (2), a knife switch (3), a base plate (4), a safety piece (5) and an inner sheath (6). The outer sheath (2) of the safety knife switch is more than 1/4 of a tube's both-end head structure, the upper portion of which is provided with 2-3 rectangular through-holes. The sheath (1) is arranged outside the through holes. The inner sheath (6) which is 1/2 of a tube's both-end head structure is arranged inside the outer sheath (2). The inner sheath (6) is fixed on the base plate (4). The upper portion of the inner sheath (6) is provided with 2-3 arc-shaped cutter slots (C). The knife switch (3) passes through the sheath (1), and the cutter slots (C) are hinged to a central sheet. The safety piece (5) is mounted between the center sheet and a lower connecting terminal. The knife switch (3) along with the outer sheath (2) moves 90 degrees along the cutter slots (C) up and down. The safety knife switch is suitable for circuit on/off control in industry and agriculture and oilfield production, has a dust prevention function, has no knife gap, has good safety performance, has no potential safety hazard, and can be used to guarantee safety production.
Description
Technical field
the utility model relates to connecting and disconnecting of the circuit controller in electrical engineering, specifically a kind of Safety knife switch.
Background technology
in industrial and agricultural production and oilfield process, appliance switch is usually used in connecting and disconnecting of the circuit control, and knife switch is one of them, and knife switch exists following problem at present: the one, do not prevent dust, and affect electric conductivity; The 2nd, after closing a floodgate, there is plug-in strip gap,, there is potential safety hazard in poor safety performance.
Summary of the invention
the purpose of this utility model is exactly in view of the foregoing defects the prior art has, designs a kind of Safety knife switch.
above-mentioned purpose is realized by following technical proposals:
the utility model comprises: sheath, outer shield, plug-in strip, base plate, safety plate, interior guard shield.The outer shield of its Safety knife switch is to be greater than 1/4 body two ends end enclosure structure, top is provided with 2～3 rectangular through holes, through hole is provided with sheath outward, in outer shield, be provided with the interior guard shield of 1/2 body two ends end enclosure structure, interior guard shield is fixed on base plate, and interior guard shield top is provided with 2～3 curved knife grooves, and plug-in strip is hinged through sheath, cutter groove and centre slice, safety plate is arranged between centre slice and lower connecting terminal, and plug-in strip moves along upper and lower 90 ° of cutter groove with outer shield.
the interior guard shield bottom of the pressing plate in above-mentioned Safety knife switch is provided with 2～3 wire casings, and four angles are respectively provided with a through hole, and the left side is circumferentially with flange.
the beneficial effects of the utility model are: be applicable to connecting and disconnecting of the circuit control in industrial or agricultural and field produces and have dust reduction capability, without plug-in strip gap, security performance is good, does not have potential safety hazard, guarantee safety in production.
Accompanying drawing explanation
the main TV structure schematic diagram of Fig. 1-the utility model.
the right TV structure schematic diagram of Fig. 2-the utility model.
in figure, 1. sheath, 2. outer shield, 3. plug-in strip, 4. base plate, 5. safety plate, 6. interior guard shield, 7. flange; A. wire casing, B. through hole, C. cutter groove.
Embodiment
below in conjunction with accompanying drawing, enforcement of the present utility model is further elaborated:
safety knife switch is by sheath 1, outer shield 2, plug-in strip 3, base plate 4, safety plate 5, and interior guard shield 6 forms.The outer shield 2 of its Safety knife switch is for being greater than 1/4 body two ends end enclosure structure, top is provided with 3 rectangular through holes, through hole is provided with sheath 1 outward, in outer shield 2, be provided with the interior guard shield 6 of 1/2 body two ends end enclosure structure, interior guard shield 6 is fixed on base plate 4, interior guard shield 6 tops are provided with 3 curved knife groove C, plug-in strip 3 is hinged through sheath 1, cutter groove C and centre slice, safety plate 5 is arranged between centre slice and lower connecting terminal, plug-in strip 3 moves along upper and lower 90 ° of cutter groove C with outer shield 2, and electric wire is connected with lower connecting terminal through wire casing A.
Claims (2)
1.
a kind of Safety knife switch, comprising: sheath (1), outer shield (2), plug-in strip (3), base plate (4), safety plate (5), interior guard shield (6), it is characterized in that: the outer shield (2) of described Safety knife switch is for being greater than 1/4 body two ends end enclosure structure, top is provided with 2～3 rectangular through holes, through hole is provided with sheath (1) outward, in outer shield (2), be provided with the interior guard shield (6) of the two ends end enclosure structure of 1/2 body, interior guard shield (6) is fixed on base plate (4), interior guard shield (6) top is provided with 2～3 curved knife grooves (C), plug-in strip (3) is through sheath (1), cutter groove (C) is hinged with centre slice, safety plate (5) is arranged between centre slice and lower connecting terminal, plug-in strip (3) with outer shield (2) along on cutter groove (C), lower 90 ° of motions.
2.
safety knife switch according to claim 1, is characterized in that: described interior guard shield (6) bottom is provided with 2～3 wire casings (A), and four angles are respectively provided with a through hole (B), and the left side is circumferentially with flange (7).
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320819809.8U CN203588903U (en) | 2013-12-14 | 2013-12-14 | Safety knife switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320819809.8U CN203588903U (en) | 2013-12-14 | 2013-12-14 | Safety knife switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203588903U true CN203588903U (en) | 2014-05-07 |
Family
ID=50586775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320819809.8U Expired - Fee Related CN203588903U (en) | 2013-12-14 | 2013-12-14 | Safety knife switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203588903U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107123564A (en) * | 2017-06-30 | 2017-09-01 | 唐山钢铁集团有限责任公司 | A kind of high-voltage electrical apparatus controls knife switch |
| CN107680866A (en) * | 2016-08-02 | 2018-02-09 | 天津中电华利电器科技集团有限公司 | A kind of new type of safe knife-like switch |
-
2013
- 2013-12-14 CN CN201320819809.8U patent/CN203588903U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107680866A (en) * | 2016-08-02 | 2018-02-09 | 天津中电华利电器科技集团有限公司 | A kind of new type of safe knife-like switch |
| CN107123564A (en) * | 2017-06-30 | 2017-09-01 | 唐山钢铁集团有限责任公司 | A kind of high-voltage electrical apparatus controls knife 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: 20140507 Termination date: 20141214 |
|
| EXPY | Termination of patent right or utility model |