CN206040493U - Safety knife switch - Google Patents
Safety knife switch Download PDFInfo
- Publication number
- CN206040493U CN206040493U CN201621064575.0U CN201621064575U CN206040493U CN 206040493 U CN206040493 U CN 206040493U CN 201621064575 U CN201621064575 U CN 201621064575U CN 206040493 U CN206040493 U CN 206040493U
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- connection end
- groove
- contact
- top surface
- electric wire
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Abstract
The application discloses safety knife switch. It includes guard shield, base, for connecting wire's last link and link and descend link fixed connection's tablock and tablock fixed connection's support and support articulated plug -in strip, contact and annular jump ring down. When the two copper sheet of contact outwards became flexible, annular jump ring can tightly be pressed the two copper sheet together, and the safety knife switch of this application has improved the safety performance of circuit.
Description
Technical field
The utility model is related to knife switch technical field, and in particular to a kind of Safety knife switch.
Background technology
After moving contact on original knife switch is frequently pressed on static contact, may after contact long-time use
Cause to loosen, specifically, contact is made up of the copper sheet that two panels is stepped up mutually, and after plug-in strip is frequently compressed, copper sheet is outside
Loosen, cause loose contact, poor safety performance to there is potential safety hazard, it could even be possible to causing to get an electric shock, security performance is low.
The content of the invention
The purpose of this utility model is to provide a kind of Safety knife switch, with asking for solving to propose in above-mentioned background technology
Topic.
The utility model is employed the following technical solutions：
A kind of Safety knife switch, including shield, base, the upper connection end to connect electric wire and lower connection end and under
Plug-in strip, contact and annular snap that the support and support that the safety plate that connection end is fixedly connected is fixedly connected with safety plate is hinged
Spring.The top of contact has two copper sheets, and a groove is respectively provided with the outside of two copper sheets, can with two in the bottom of contact
For the hole that annular spring passes through.Annular spring has an otch, hole of the annular spring by contact bottom, annular spring otch
Two ends be stuck in the groove on the outside of two copper sheets.
Upper connection end is identical with the structure of lower connection end.Upper connection end, lower connection end include fixed screw, copper coin, company
Fitting.Connector includes bottom surface, first side, second side, the first top surface, the second top surface.First side has the first groove, the
Two side faces have the second groove, and in second groove of raised insertion of the first top surface, the prominent flanging of the second top surface is pressed in the first groove, is protected
The stability of card connector.First top surface and the second top surface have concentric threads hole, so that fixed screw passes through.Fixed screw and
Copper coin is fixedly connected, and when fixed screw is moved up, the space of copper coin and bottom surface becomes big, inserts the space with supply lines, and will
Electric wire loosens, and when fixed screw is moved down, the space of copper coin and bottom surface diminishes, and electric wire is compacted.
Further, the space of copper coin and bottom surface can accommodate the electric wire that cross-sectional area is not more than 10 square millimeters.
The beneficial effects of the utility model are：
1st, can effectively prevent the two panels copper sheet of static contact from loosening, have a safety feature；
2nd, bigger specification and electric wire connection end is devised, the electric wire of more specifications is can adapt to.
Description of the drawings
With reference to the accompanying drawings and detailed description the application is described in further detail.
Fig. 1 is a kind of structural representation of Safety knife switch of the application.
Fig. 2 is annular spring and structure of contact terminal schematic diagram.
Being numbered in figure：1st, base；2nd, plug-in strip；3rd, upper connection end；4th, lower connection end；5th, safety plate；6th, support；7th, touch
Head；8th, annular spring；9th, screw；10th, upper connecting stud；11st, lower connecting stud.
Specific embodiment
Those skilled in the art's understanding, is further retouched to the utility model below in conjunction with embodiment for convenience
State.Embodiment is only the illustration to the utility model, is not, to restriction of the present utility model, not make concrete in embodiment
The step of explanation is prior art, and here is not described in detail.
Embodiment one
A kind of Safety knife switch as shown in Figure 1, the Safety knife switch is threephase switch, and Safety knife switch includes
Shield（Not shown in figure）, base（1）, upper connection end to connect electric wire（3）With lower connection end（4）, and lower connection end（4）
The safety plate being fixedly connected（5）, and safety plate（5）The support being fixedly connected（6）, and support（6）The plug-in strip being hinged（2）, contact
（7）And annular spring（8）.
Shield is arranged on above base, is shielded.Shield has a plug-in strip groove of three receiving plug-in strips, and have four to
The hole of connect base.Two upper connecting studs and two lower connecting studs are fixedly connected with base, upper connecting stud is than lower company
Connect that stud length is long, two upper connecting studs and two lower connecting studs are fixedly connected with shield by the four of shield holes.
Safety plate（5）With lower connection end（4）It is fixedly connected, support（6）And safety plate（5）It is fixedly connected, support（6）Pass through
One axle and plug-in strip（2）It is articulated and connected.
As shown in Fig. 2 contact（7）Top have two copper sheets, by plug-in strip（2）It is pressed in two copper sheets, it is real
The UNICOM of existing circuit, by plug-in strip（2）Two copper sheets are left, then disconnecting circuit.A groove is respectively provided with the outside of two copper sheets.
Contact（7）Bottom be available for annular spring with two（8）The hole for passing through.Annular spring（8）With an otch, annular spring
By contact（7）The hole of bottom, annular spring（8）The two ends of otch are stuck in the groove on the outside of two copper sheets.Work as contact
（7）Two copper sheets when outwards loosening, annular spring（8）Two copper sheets can be tightly pressed against together, it is ensured that the safety of circuit.
Base（1）It is upper to be fixed with to connect 3 upper connection ends of electric wire by multiple screws（3）With 3 lower connection ends
（4）.Upper connection end（3）With lower connection end（4）Structure it is identical.
Upper connection end（3）, lower connection end（4）Include fixed screw, copper coin, connector.Connector include bottom surface, first
Side, second side, the first top surface, the second top surface.First side has the first groove, and second side has the second groove, the first top
In second groove of raised insertion in face, the prominent flanging of the second top surface is pressed in the first groove, it is ensured that the stability of connector.First top
Face and the second top surface have concentric threads hole, so that fixed screw passes through.Fixed screw is fixedly connected with copper coin, fixed screw to
When upper mobile, the space of copper coin and bottom surface becomes big, inserts the space with supply lines, and electric wire is loosened, and fixed screw is to moving down
When dynamic, the space of copper coin and bottom surface diminishes, and electric wire is compacted.The space of copper coin and bottom surface can accommodate cross-sectional area and be not more than 10
The electric wire of square millimeter.
Embodiment two
A kind of Safety knife switch, the Safety knife switch are switched for two-phase, and Safety knife switch includes shield（In figure not
Illustrate）, base（1）, upper connection end to connect electric wire（3）With lower connection end（4）, and lower connection end（4）It is fixedly connected
Safety plate（5）, and safety plate（5）The support being fixedly connected（6）, and support（6）The plug-in strip being hinged（2）, contact（7）And annular
Jump ring（8）.
Shield is arranged on above base, is shielded.Shield has a plug-in strip groove of two receiving plug-in strips, and have two to
The hole of connect base.A upper connecting stud and a lower connecting stud are fixedly connected with base, upper connecting stud is than lower company
Connect that stud length is long, a upper connecting stud and a lower connecting stud are fixedly connected with shield by the two of shield holes.
Base（1）It is upper to be fixed with to connect 2 upper connection ends of electric wire by multiple screws（3）With 2 lower connection ends
（4）.
Safety plate（5）With lower connection end（4）It is fixedly connected, support（6）And safety plate（5）It is fixedly connected, support（6）Pass through
One axle and plug-in strip（2）It is articulated and connected.
As shown in Fig. 2 contact（7）Top have two copper sheets, by plug-in strip（2）It is pressed in two copper sheets, it is real
The UNICOM of existing circuit, by plug-in strip（2）Two copper sheets are left, then disconnecting circuit.A groove is respectively provided with the outside of two copper sheets.
Contact（7）Bottom be available for annular spring with two（8）The hole for passing through.Annular spring（8）With an otch, annular spring
By contact（7）The hole of bottom, annular spring（8）The two ends of otch are stuck in the groove on the outside of two copper sheets.Work as contact
（7）Two copper sheets when outwards loosening, annular spring（8）Two copper sheets can be tightly pressed against together, it is ensured that the safety of circuit.
Base（1）It is upper to be fixed with to connect 2 upper connection ends of electric wire by multiple screws（3）With 2 lower connection ends
（4）.Upper connection end（3）With lower connection end（4）Structure it is identical.
Upper connection end（3）, lower connection end（4）Include fixed screw, copper coin, connector.Connector include bottom surface, first
Side, second side, the first top surface, the second top surface.First side has the first groove, and second side has the second groove, the first top
In second groove of raised insertion in face, the prominent flanging of the second top surface is pressed in the first groove, it is ensured that the stability of connector.First top
Face and the second top surface have concentric threads hole, so that fixed screw passes through.Fixed screw is fixedly connected with copper coin, fixed screw to
When upper mobile, the space of copper coin and bottom surface becomes big, inserts the space with supply lines, and electric wire is loosened, and fixed screw is to moving down
When dynamic, the space of copper coin and bottom surface diminishes, and electric wire is compacted.The space of copper coin and bottom surface can accommodate cross-sectional area and be not more than 10
The electric wire of square millimeter.
The above is embodiments herein.The application is not limited to above-mentioned embodiment, and anyone should learn
The structure change made under the enlightenment of the application, it is every that there is same or like technical scheme with the application, each fall within this
Within the protection domain of application.
Claims (2)
1. a kind of Safety knife switch, it is characterised in that：Including shield, base, the upper connection end to connect electric wire and lower company
Plug-in strip that the support and support that the safety plate for connecing end, be fixedly connected with lower connection end is fixedly connected with safety plate is hinged, contact
And annular spring；The top of contact has two copper sheets, is respectively provided with a groove, in the bottom of contact on the outside of two copper sheets
With two holes for being available for annular spring to pass through；Annular spring has an otch, hole of the annular spring by contact bottom, ring
The two ends of shape jump ring otch are stuck in the groove on the outside of two copper sheets；Upper connection end is identical with the structure of lower connection end；On
Connection end, lower connection end include fixed screw, copper coin, connector, connector include bottom surface, first side, second side, the
One top surface, the second top surface；First side has the first groove, and second side has the second groove, the raised insertion second of the first top surface
In groove, the prominent flanging of the second top surface is pressed in the first groove；First top surface and the second top surface have concentric threads hole, for fixation
Screw passes through；Fixed screw is fixedly connected with copper coin, when fixed screw is moved up, copper coin and the space of bottom surface can be made to become big,
The space is inserted with supply lines, electric wire is loosened, when fixed screw is moved down, copper coin and the space of bottom surface can be made to diminish, will
Electric wire is compacted.
2. a kind of Safety knife switch according to claim 1, it is characterised in that：The space of copper coin and bottom surface can accommodate
Cross-sectional area is not more than 10 square millimeters of electric wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621064575.0U CN206040493U (en) | 2016-09-20 | 2016-09-20 | Safety knife switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621064575.0U CN206040493U (en) | 2016-09-20 | 2016-09-20 | Safety knife switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206040493U true CN206040493U (en) | 2017-03-22 |
Family
ID=58296025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621064575.0U Active CN206040493U (en) | 2016-09-20 | 2016-09-20 | Safety knife switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206040493U (en) |
-
2016
- 2016-09-20 CN CN201621064575.0U patent/CN206040493U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |